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);
1511 /* Put ndlp onto node list */
1512 lpfc_enqueue_node(vport, ndlp);
1515 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
1516 /* decrement node reference count to trigger the release of
1526 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1527 * @vport: pointer to a host virtual N_Port data structure.
1529 * This routine checks whether there are more remaining Port Logins
1530 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1531 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1532 * to issue ELS PLOGIs up to the configured discover threads with the
1533 * @vport (@vport->cfg_discovery_threads). The function also decrement
1534 * the @vport's num_disc_node by 1 if it is not already 0.
1537 lpfc_more_plogi(struct lpfc_vport *vport)
1539 if (vport->num_disc_nodes)
1540 vport->num_disc_nodes--;
1542 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1543 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1544 "0232 Continue discovery with %d PLOGIs to go "
1545 "Data: x%x x%x x%x\n",
1546 vport->num_disc_nodes, vport->fc_plogi_cnt,
1547 vport->fc_flag, vport->port_state);
1548 /* Check to see if there are more PLOGIs to be sent */
1549 if (vport->fc_flag & FC_NLP_MORE)
1550 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1551 lpfc_els_disc_plogi(vport);
1557 * lpfc_plogi_confirm_nport - Confirm plogi wwpn matches stored ndlp
1558 * @phba: pointer to lpfc hba data structure.
1559 * @prsp: pointer to response IOCB payload.
1560 * @ndlp: pointer to a node-list data structure.
1562 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1563 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1564 * The following cases are considered N_Port confirmed:
1565 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1566 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1567 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1568 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1569 * 1) if there is a node on vport list other than the @ndlp with the same
1570 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1571 * on that node to release the RPI associated with the node; 2) if there is
1572 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1573 * into, a new node shall be allocated (or activated). In either case, the
1574 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1575 * be released and the new_ndlp shall be put on to the vport node list and
1576 * its pointer returned as the confirmed node.
1578 * Note that before the @ndlp got "released", the keepDID from not-matching
1579 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1580 * of the @ndlp. This is because the release of @ndlp is actually to put it
1581 * into an inactive state on the vport node list and the vport node list
1582 * management algorithm does not allow two node with a same DID.
1585 * pointer to the PLOGI N_Port @ndlp
1587 static struct lpfc_nodelist *
1588 lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
1589 struct lpfc_nodelist *ndlp)
1591 struct lpfc_vport *vport = ndlp->vport;
1592 struct lpfc_nodelist *new_ndlp;
1593 struct serv_parm *sp;
1594 uint8_t name[sizeof(struct lpfc_name)];
1595 uint32_t rc, keepDID = 0, keep_nlp_flag = 0;
1596 uint32_t keep_new_nlp_flag = 0;
1597 uint16_t keep_nlp_state;
1598 u32 keep_nlp_fc4_type = 0;
1599 struct lpfc_nvme_rport *keep_nrport = NULL;
1600 unsigned long *active_rrqs_xri_bitmap = NULL;
1602 /* Fabric nodes can have the same WWPN so we don't bother searching
1603 * by WWPN. Just return the ndlp that was given to us.
1605 if (ndlp->nlp_type & NLP_FABRIC)
1608 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
1609 memset(name, 0, sizeof(struct lpfc_name));
1611 /* Now we find out if the NPort we are logging into, matches the WWPN
1612 * we have for that ndlp. If not, we have some work to do.
1614 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
1616 /* return immediately if the WWPN matches ndlp */
1617 if (new_ndlp == ndlp)
1620 if (phba->sli_rev == LPFC_SLI_REV4) {
1621 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
1623 if (active_rrqs_xri_bitmap)
1624 memset(active_rrqs_xri_bitmap, 0,
1625 phba->cfg_rrq_xri_bitmap_sz);
1628 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE,
1629 "3178 PLOGI confirm: ndlp x%x x%x x%x: "
1630 "new_ndlp x%x x%x x%x\n",
1631 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_fc4_type,
1632 (new_ndlp ? new_ndlp->nlp_DID : 0),
1633 (new_ndlp ? new_ndlp->nlp_flag : 0),
1634 (new_ndlp ? new_ndlp->nlp_fc4_type : 0));
1637 rc = memcmp(&ndlp->nlp_portname, name,
1638 sizeof(struct lpfc_name));
1640 if (active_rrqs_xri_bitmap)
1641 mempool_free(active_rrqs_xri_bitmap,
1642 phba->active_rrq_pool);
1645 new_ndlp = lpfc_nlp_init(vport, ndlp->nlp_DID);
1647 if (active_rrqs_xri_bitmap)
1648 mempool_free(active_rrqs_xri_bitmap,
1649 phba->active_rrq_pool);
1653 keepDID = new_ndlp->nlp_DID;
1654 if (phba->sli_rev == LPFC_SLI_REV4 &&
1655 active_rrqs_xri_bitmap)
1656 memcpy(active_rrqs_xri_bitmap,
1657 new_ndlp->active_rrqs_xri_bitmap,
1658 phba->cfg_rrq_xri_bitmap_sz);
1661 /* At this point in this routine, we know new_ndlp will be
1662 * returned. however, any previous GID_FTs that were done
1663 * would have updated nlp_fc4_type in ndlp, so we must ensure
1664 * new_ndlp has the right value.
1666 if (vport->fc_flag & FC_FABRIC) {
1667 keep_nlp_fc4_type = new_ndlp->nlp_fc4_type;
1668 new_ndlp->nlp_fc4_type = ndlp->nlp_fc4_type;
1671 lpfc_unreg_rpi(vport, new_ndlp);
1672 new_ndlp->nlp_DID = ndlp->nlp_DID;
1673 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
1674 if (phba->sli_rev == LPFC_SLI_REV4)
1675 memcpy(new_ndlp->active_rrqs_xri_bitmap,
1676 ndlp->active_rrqs_xri_bitmap,
1677 phba->cfg_rrq_xri_bitmap_sz);
1679 /* Lock both ndlps */
1680 spin_lock_irq(&ndlp->lock);
1681 spin_lock_irq(&new_ndlp->lock);
1682 keep_new_nlp_flag = new_ndlp->nlp_flag;
1683 keep_nlp_flag = ndlp->nlp_flag;
1684 new_ndlp->nlp_flag = ndlp->nlp_flag;
1686 /* if new_ndlp had NLP_UNREG_INP set, keep it */
1687 if (keep_new_nlp_flag & NLP_UNREG_INP)
1688 new_ndlp->nlp_flag |= NLP_UNREG_INP;
1690 new_ndlp->nlp_flag &= ~NLP_UNREG_INP;
1692 /* if new_ndlp had NLP_RPI_REGISTERED set, keep it */
1693 if (keep_new_nlp_flag & NLP_RPI_REGISTERED)
1694 new_ndlp->nlp_flag |= NLP_RPI_REGISTERED;
1696 new_ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
1698 ndlp->nlp_flag = keep_new_nlp_flag;
1700 /* if ndlp had NLP_UNREG_INP set, keep it */
1701 if (keep_nlp_flag & NLP_UNREG_INP)
1702 ndlp->nlp_flag |= NLP_UNREG_INP;
1704 ndlp->nlp_flag &= ~NLP_UNREG_INP;
1706 /* if ndlp had NLP_RPI_REGISTERED set, keep it */
1707 if (keep_nlp_flag & NLP_RPI_REGISTERED)
1708 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
1710 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
1712 spin_unlock_irq(&new_ndlp->lock);
1713 spin_unlock_irq(&ndlp->lock);
1715 /* Set nlp_states accordingly */
1716 keep_nlp_state = new_ndlp->nlp_state;
1717 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
1719 /* interchange the nvme remoteport structs */
1720 keep_nrport = new_ndlp->nrport;
1721 new_ndlp->nrport = ndlp->nrport;
1723 /* Move this back to NPR state */
1724 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
1725 /* The new_ndlp is replacing ndlp totally, so we need
1726 * to put ndlp on UNUSED list and try to free it.
1728 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1729 "3179 PLOGI confirm NEW: %x %x\n",
1730 new_ndlp->nlp_DID, keepDID);
1732 /* Two ndlps cannot have the same did on the nodelist.
1733 * Note: for this case, ndlp has a NULL WWPN so setting
1734 * the nlp_fc4_type isn't required.
1736 ndlp->nlp_DID = keepDID;
1737 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
1738 if (phba->sli_rev == LPFC_SLI_REV4 &&
1739 active_rrqs_xri_bitmap)
1740 memcpy(ndlp->active_rrqs_xri_bitmap,
1741 active_rrqs_xri_bitmap,
1742 phba->cfg_rrq_xri_bitmap_sz);
1745 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1746 "3180 PLOGI confirm SWAP: %x %x\n",
1747 new_ndlp->nlp_DID, keepDID);
1749 lpfc_unreg_rpi(vport, ndlp);
1751 /* Two ndlps cannot have the same did and the fc4
1752 * type must be transferred because the ndlp is in
1755 ndlp->nlp_DID = keepDID;
1756 ndlp->nlp_fc4_type = keep_nlp_fc4_type;
1758 if (phba->sli_rev == LPFC_SLI_REV4 &&
1759 active_rrqs_xri_bitmap)
1760 memcpy(ndlp->active_rrqs_xri_bitmap,
1761 active_rrqs_xri_bitmap,
1762 phba->cfg_rrq_xri_bitmap_sz);
1764 /* Since we are switching over to the new_ndlp,
1765 * reset the old ndlp state
1767 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
1768 (ndlp->nlp_state == NLP_STE_MAPPED_NODE))
1769 keep_nlp_state = NLP_STE_NPR_NODE;
1770 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
1771 ndlp->nrport = keep_nrport;
1775 * If ndlp is not associated with any rport we can drop it here else
1776 * let dev_loss_tmo_callbk trigger DEVICE_RM event
1778 if (!ndlp->rport && (ndlp->nlp_state == NLP_STE_NPR_NODE))
1779 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
1781 if (phba->sli_rev == LPFC_SLI_REV4 &&
1782 active_rrqs_xri_bitmap)
1783 mempool_free(active_rrqs_xri_bitmap,
1784 phba->active_rrq_pool);
1786 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE,
1787 "3173 PLOGI confirm exit: new_ndlp x%x x%x x%x\n",
1788 new_ndlp->nlp_DID, new_ndlp->nlp_flag,
1789 new_ndlp->nlp_fc4_type);
1795 * lpfc_end_rscn - Check and handle more rscn for a vport
1796 * @vport: pointer to a host virtual N_Port data structure.
1798 * This routine checks whether more Registration State Change
1799 * Notifications (RSCNs) came in while the discovery state machine was in
1800 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1801 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1802 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1803 * handling the RSCNs.
1806 lpfc_end_rscn(struct lpfc_vport *vport)
1808 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1810 if (vport->fc_flag & FC_RSCN_MODE) {
1812 * Check to see if more RSCNs came in while we were
1813 * processing this one.
1815 if (vport->fc_rscn_id_cnt ||
1816 (vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
1817 lpfc_els_handle_rscn(vport);
1819 spin_lock_irq(shost->host_lock);
1820 vport->fc_flag &= ~FC_RSCN_MODE;
1821 spin_unlock_irq(shost->host_lock);
1827 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1828 * @phba: pointer to lpfc hba data structure.
1829 * @cmdiocb: pointer to lpfc command iocb data structure.
1830 * @rspiocb: pointer to lpfc response iocb data structure.
1832 * This routine will call the clear rrq function to free the rrq and
1833 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1834 * exist then the clear_rrq is still called because the rrq needs to
1839 lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1840 struct lpfc_iocbq *rspiocb)
1842 struct lpfc_vport *vport = cmdiocb->vport;
1844 struct lpfc_nodelist *ndlp;
1845 struct lpfc_node_rrq *rrq;
1847 /* we pass cmdiocb to state machine which needs rspiocb as well */
1848 rrq = cmdiocb->context_un.rrq;
1849 cmdiocb->context_un.rsp_iocb = rspiocb;
1851 irsp = &rspiocb->iocb;
1852 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1853 "RRQ cmpl: status:x%x/x%x did:x%x",
1854 irsp->ulpStatus, irsp->un.ulpWord[4],
1855 irsp->un.elsreq64.remoteID);
1857 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1858 if (!ndlp || ndlp != rrq->ndlp) {
1859 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1860 "2882 RRQ completes to NPort x%x "
1861 "with no ndlp. Data: x%x x%x x%x\n",
1862 irsp->un.elsreq64.remoteID,
1863 irsp->ulpStatus, irsp->un.ulpWord[4],
1868 /* rrq completes to NPort <nlp_DID> */
1869 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1870 "2880 RRQ completes to NPort x%x "
1871 "Data: x%x x%x x%x x%x x%x\n",
1872 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1873 irsp->ulpTimeout, rrq->xritag, rrq->rxid);
1875 if (irsp->ulpStatus) {
1876 /* Check for retry */
1877 /* RRQ failed Don't print the vport to vport rjts */
1878 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1879 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1880 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1881 (phba)->pport->cfg_log_verbose & LOG_ELS)
1882 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1883 "2881 RRQ failure DID:%06X Status:"
1885 ndlp->nlp_DID, irsp->ulpStatus,
1886 irsp->un.ulpWord[4]);
1890 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1892 lpfc_els_free_iocb(phba, cmdiocb);
1897 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1898 * @phba: pointer to lpfc hba data structure.
1899 * @cmdiocb: pointer to lpfc command iocb data structure.
1900 * @rspiocb: pointer to lpfc response iocb data structure.
1902 * This routine is the completion callback function for issuing the Port
1903 * Login (PLOGI) command. For PLOGI completion, there must be an active
1904 * ndlp on the vport node list that matches the remote node ID from the
1905 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1906 * ignored and command IOCB released. The PLOGI response IOCB status is
1907 * checked for error conditons. If there is error status reported, PLOGI
1908 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1909 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1910 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1911 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1912 * there are additional N_Port nodes with the vport that need to perform
1913 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1917 lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1918 struct lpfc_iocbq *rspiocb)
1920 struct lpfc_vport *vport = cmdiocb->vport;
1921 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1923 struct lpfc_nodelist *ndlp, *free_ndlp;
1924 struct lpfc_dmabuf *prsp;
1927 /* we pass cmdiocb to state machine which needs rspiocb as well */
1928 cmdiocb->context_un.rsp_iocb = rspiocb;
1930 irsp = &rspiocb->iocb;
1931 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1932 "PLOGI cmpl: status:x%x/x%x did:x%x",
1933 irsp->ulpStatus, irsp->un.ulpWord[4],
1934 irsp->un.elsreq64.remoteID);
1936 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1938 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1939 "0136 PLOGI completes to NPort x%x "
1940 "with no ndlp. Data: x%x x%x x%x\n",
1941 irsp->un.elsreq64.remoteID,
1942 irsp->ulpStatus, irsp->un.ulpWord[4],
1947 /* Since ndlp can be freed in the disc state machine, note if this node
1948 * is being used during discovery.
1950 spin_lock_irq(&ndlp->lock);
1951 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
1952 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1953 spin_unlock_irq(&ndlp->lock);
1955 /* PLOGI completes to NPort <nlp_DID> */
1956 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1957 "0102 PLOGI completes to NPort x%06x "
1958 "Data: x%x x%x x%x x%x x%x\n",
1959 ndlp->nlp_DID, ndlp->nlp_fc4_type,
1960 irsp->ulpStatus, irsp->un.ulpWord[4],
1961 disc, vport->num_disc_nodes);
1963 /* Check to see if link went down during discovery */
1964 if (lpfc_els_chk_latt(vport)) {
1965 spin_lock_irq(&ndlp->lock);
1966 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1967 spin_unlock_irq(&ndlp->lock);
1971 if (irsp->ulpStatus) {
1972 /* Check for retry */
1973 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1974 /* ELS command is being retried */
1976 spin_lock_irq(&ndlp->lock);
1977 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1978 spin_unlock_irq(&ndlp->lock);
1982 /* PLOGI failed Don't print the vport to vport rjts */
1983 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1984 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1985 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1986 (phba)->pport->cfg_log_verbose & LOG_ELS)
1987 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1988 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1989 ndlp->nlp_DID, irsp->ulpStatus,
1990 irsp->un.ulpWord[4]);
1992 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1993 if (lpfc_error_lost_link(irsp))
1996 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1997 NLP_EVT_CMPL_PLOGI);
1999 /* As long as this node is not registered with the scsi or nvme
2000 * transport, it is no longer an active node. Otherwise
2001 * devloss handles the final cleanup.
2003 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
2004 spin_lock_irq(&ndlp->lock);
2005 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2006 spin_unlock_irq(&ndlp->lock);
2007 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2011 /* Good status, call state machine */
2012 prsp = list_entry(((struct lpfc_dmabuf *)
2013 cmdiocb->context2)->list.next,
2014 struct lpfc_dmabuf, list);
2015 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
2016 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2017 NLP_EVT_CMPL_PLOGI);
2021 if (disc && vport->num_disc_nodes) {
2022 /* Check to see if there are more PLOGIs to be sent */
2023 lpfc_more_plogi(vport);
2025 if (vport->num_disc_nodes == 0) {
2026 spin_lock_irq(shost->host_lock);
2027 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2028 spin_unlock_irq(shost->host_lock);
2030 lpfc_can_disctmo(vport);
2031 lpfc_end_rscn(vport);
2036 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2037 "PLOGI Cmpl PUT: did:x%x refcnt %d",
2038 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
2040 /* Release the reference on the original I/O request. */
2041 free_ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
2043 lpfc_els_free_iocb(phba, cmdiocb);
2044 lpfc_nlp_put(free_ndlp);
2049 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
2050 * @vport: pointer to a host virtual N_Port data structure.
2051 * @did: destination port identifier.
2052 * @retry: number of retries to the command IOCB.
2054 * This routine issues a Port Login (PLOGI) command to a remote N_Port
2055 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
2056 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
2057 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
2058 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
2060 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2061 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2062 * will be stored into the context1 field of the IOCB for the completion
2063 * callback function to the PLOGI ELS command.
2066 * 0 - Successfully issued a plogi for @vport
2067 * 1 - failed to issue a plogi for @vport
2070 lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
2072 struct lpfc_hba *phba = vport->phba;
2073 struct Scsi_Host *shost;
2074 struct serv_parm *sp;
2075 struct lpfc_nodelist *ndlp;
2076 struct lpfc_iocbq *elsiocb;
2081 ndlp = lpfc_findnode_did(vport, did);
2084 /* Defer the processing of the issue PLOGI until after the
2085 * outstanding UNREG_RPI mbox command completes, unless we
2086 * are going offline. This logic does not apply for Fabric DIDs
2088 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2089 ((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) &&
2090 !(vport->fc_flag & FC_OFFLINE_MODE)) {
2091 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2092 "4110 Issue PLOGI x%x deferred "
2093 "on NPort x%x rpi x%x Data: x%px\n",
2094 ndlp->nlp_defer_did, ndlp->nlp_DID,
2095 ndlp->nlp_rpi, ndlp);
2097 /* We can only defer 1st PLOGI */
2098 if (ndlp->nlp_defer_did == NLP_EVT_NOTHING_PENDING)
2099 ndlp->nlp_defer_did = did;
2104 /* If ndlp is not NULL, we will bump the reference count on it */
2105 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
2106 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
2111 shost = lpfc_shost_from_vport(vport);
2112 spin_lock_irq(&ndlp->lock);
2113 ndlp->nlp_flag &= ~NLP_FCP_PRLI_RJT;
2114 spin_unlock_irq(&ndlp->lock);
2116 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2118 /* For PLOGI request, remainder of payload is service parameters */
2119 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
2120 pcmd += sizeof(uint32_t);
2121 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
2122 sp = (struct serv_parm *) pcmd;
2125 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
2126 * to device on remote loops work.
2128 if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP))
2129 sp->cmn.altBbCredit = 1;
2131 if (sp->cmn.fcphLow < FC_PH_4_3)
2132 sp->cmn.fcphLow = FC_PH_4_3;
2134 if (sp->cmn.fcphHigh < FC_PH3)
2135 sp->cmn.fcphHigh = FC_PH3;
2137 sp->cmn.valid_vendor_ver_level = 0;
2138 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
2139 sp->cmn.bbRcvSizeMsb &= 0xF;
2141 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2142 "Issue PLOGI: did:x%x",
2145 /* If our firmware supports this feature, convey that
2146 * information to the target using the vendor specific field.
2148 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) {
2149 sp->cmn.valid_vendor_ver_level = 1;
2150 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID);
2151 sp->un.vv.flags = cpu_to_be32(LPFC_VV_SUPPRESS_RSP);
2154 phba->fc_stat.elsXmitPLOGI++;
2155 elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
2157 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2158 "Issue PLOGI: did:x%x refcnt %d",
2159 did, kref_read(&ndlp->kref), 0);
2160 elsiocb->context1 = lpfc_nlp_get(ndlp);
2161 if (!elsiocb->context1)
2164 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2172 lpfc_els_free_iocb(phba, elsiocb);
2177 * lpfc_cmpl_els_prli - Completion callback function for prli
2178 * @phba: pointer to lpfc hba data structure.
2179 * @cmdiocb: pointer to lpfc command iocb data structure.
2180 * @rspiocb: pointer to lpfc response iocb data structure.
2182 * This routine is the completion callback function for a Process Login
2183 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2184 * status. If there is error status reported, PRLI retry shall be attempted
2185 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2186 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2187 * ndlp to mark the PRLI completion.
2190 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2191 struct lpfc_iocbq *rspiocb)
2193 struct lpfc_vport *vport = cmdiocb->vport;
2195 struct lpfc_nodelist *ndlp;
2199 /* we pass cmdiocb to state machine which needs rspiocb as well */
2200 cmdiocb->context_un.rsp_iocb = rspiocb;
2202 irsp = &(rspiocb->iocb);
2203 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2204 spin_lock_irq(&ndlp->lock);
2205 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2207 /* Driver supports multiple FC4 types. Counters matter. */
2208 vport->fc_prli_sent--;
2209 ndlp->fc4_prli_sent--;
2210 spin_unlock_irq(&ndlp->lock);
2212 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2213 "PRLI cmpl: status:x%x/x%x did:x%x",
2214 irsp->ulpStatus, irsp->un.ulpWord[4],
2217 /* PRLI completes to NPort <nlp_DID> */
2218 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2219 "0103 PRLI completes to NPort x%06x "
2220 "Data: x%x x%x x%x x%x\n",
2221 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2222 vport->num_disc_nodes, ndlp->fc4_prli_sent);
2224 /* Check to see if link went down during discovery */
2225 if (lpfc_els_chk_latt(vport))
2228 if (irsp->ulpStatus) {
2229 /* Check for retry */
2230 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2231 /* ELS command is being retried */
2235 /* If we don't send GFT_ID to Fabric, a PRLI error
2236 * could be expected.
2238 if ((vport->fc_flag & FC_FABRIC) ||
2239 (vport->cfg_enable_fc4_type != LPFC_ENABLE_BOTH)) {
2241 loglevel = LOG_TRACE_EVENT;
2248 lpfc_printf_vlog(vport, mode, loglevel,
2249 "2754 PRLI failure DID:%06X Status:x%x/x%x, "
2251 ndlp->nlp_DID, irsp->ulpStatus,
2252 irsp->un.ulpWord[4], ndlp->fc4_prli_sent);
2254 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2255 if (lpfc_error_lost_link(irsp))
2258 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2261 /* As long as this node is not registered with the SCSI
2262 * or NVMe transport and no other PRLIs are outstanding,
2263 * it is no longer an active node. Otherwise devloss
2264 * handles the final cleanup.
2266 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) &&
2267 !ndlp->fc4_prli_sent) {
2268 spin_lock_irq(&ndlp->lock);
2269 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2270 spin_unlock_irq(&ndlp->lock);
2271 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2275 /* Good status, call state machine. However, if another
2276 * PRLI is outstanding, don't call the state machine
2277 * because final disposition to Mapped or Unmapped is
2280 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2285 lpfc_els_free_iocb(phba, cmdiocb);
2291 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2292 * @vport: pointer to a host virtual N_Port data structure.
2293 * @ndlp: pointer to a node-list data structure.
2294 * @retry: number of retries to the command IOCB.
2296 * This routine issues a Process Login (PRLI) ELS command for the
2297 * @vport. The PRLI service parameters are set up in the payload of the
2298 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2299 * is put to the IOCB completion callback func field before invoking the
2300 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2302 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2303 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2304 * will be stored into the context1 field of the IOCB for the completion
2305 * callback function to the PRLI ELS command.
2308 * 0 - successfully issued prli iocb command for @vport
2309 * 1 - failed to issue prli iocb command for @vport
2312 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2316 struct lpfc_hba *phba = vport->phba;
2318 struct lpfc_nvme_prli *npr_nvme;
2319 struct lpfc_iocbq *elsiocb;
2322 u32 local_nlp_type, elscmd;
2325 * If we are in RSCN mode, the FC4 types supported from a
2326 * previous GFT_ID command may not be accurate. So, if we
2327 * are a NVME Initiator, always look for the possibility of
2328 * the remote NPort beng a NVME Target.
2330 if (phba->sli_rev == LPFC_SLI_REV4 &&
2331 vport->fc_flag & FC_RSCN_MODE &&
2332 vport->nvmei_support)
2333 ndlp->nlp_fc4_type |= NLP_FC4_NVME;
2334 local_nlp_type = ndlp->nlp_fc4_type;
2336 /* This routine will issue 1 or 2 PRLIs, so zero all the ndlp
2337 * fields here before any of them can complete.
2339 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
2340 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR);
2341 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
2342 ndlp->nlp_flag &= ~(NLP_FIRSTBURST | NLP_NPR_2B_DISC);
2343 ndlp->nvme_fb_size = 0;
2346 if (local_nlp_type & NLP_FC4_FCP) {
2347 /* Payload is 4 + 16 = 20 x14 bytes. */
2348 cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
2349 elscmd = ELS_CMD_PRLI;
2350 } else if (local_nlp_type & NLP_FC4_NVME) {
2351 /* Payload is 4 + 20 = 24 x18 bytes. */
2352 cmdsize = (sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli));
2353 elscmd = ELS_CMD_NVMEPRLI;
2355 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2356 "3083 Unknown FC_TYPE x%x ndlp x%06x\n",
2357 ndlp->nlp_fc4_type, ndlp->nlp_DID);
2361 /* SLI3 ports don't support NVME. If this rport is a strict NVME
2362 * FC4 type, implicitly LOGO.
2364 if (phba->sli_rev == LPFC_SLI_REV3 &&
2365 ndlp->nlp_fc4_type == NLP_FC4_NVME) {
2366 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2367 "3088 Rport fc4 type 0x%x not supported by SLI3 adapter\n",
2369 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
2373 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2374 ndlp->nlp_DID, elscmd);
2378 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2380 /* For PRLI request, remainder of payload is service parameters */
2381 memset(pcmd, 0, cmdsize);
2383 if (local_nlp_type & NLP_FC4_FCP) {
2384 /* Remainder of payload is FCP PRLI parameter page.
2385 * Note: this data structure is defined as
2386 * BE/LE in the structure definition so no
2387 * byte swap call is made.
2389 *((uint32_t *)(pcmd)) = ELS_CMD_PRLI;
2390 pcmd += sizeof(uint32_t);
2394 * If our firmware version is 3.20 or later,
2395 * set the following bits for FC-TAPE support.
2397 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
2398 npr->ConfmComplAllowed = 1;
2400 npr->TaskRetryIdReq = 1;
2402 npr->estabImagePair = 1;
2403 npr->readXferRdyDis = 1;
2404 if (vport->cfg_first_burst_size)
2405 npr->writeXferRdyDis = 1;
2407 /* For FCP support */
2408 npr->prliType = PRLI_FCP_TYPE;
2409 npr->initiatorFunc = 1;
2410 elsiocb->iocb_flag |= LPFC_PRLI_FCP_REQ;
2412 /* Remove FCP type - processed. */
2413 local_nlp_type &= ~NLP_FC4_FCP;
2414 } else if (local_nlp_type & NLP_FC4_NVME) {
2415 /* Remainder of payload is NVME PRLI parameter page.
2416 * This data structure is the newer definition that
2417 * uses bf macros so a byte swap is required.
2419 *((uint32_t *)(pcmd)) = ELS_CMD_NVMEPRLI;
2420 pcmd += sizeof(uint32_t);
2421 npr_nvme = (struct lpfc_nvme_prli *)pcmd;
2422 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
2423 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */
2425 bf_set(prli_nsler, npr_nvme, 1);
2426 bf_set(prli_conf, npr_nvme, 1);
2429 /* Only initiators request first burst. */
2430 if ((phba->cfg_nvme_enable_fb) &&
2431 !phba->nvmet_support)
2432 bf_set(prli_fba, npr_nvme, 1);
2434 if (phba->nvmet_support) {
2435 bf_set(prli_tgt, npr_nvme, 1);
2436 bf_set(prli_disc, npr_nvme, 1);
2438 bf_set(prli_init, npr_nvme, 1);
2439 bf_set(prli_conf, npr_nvme, 1);
2442 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1);
2443 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4);
2444 elsiocb->iocb_flag |= LPFC_PRLI_NVME_REQ;
2446 /* Remove NVME type - processed. */
2447 local_nlp_type &= ~NLP_FC4_NVME;
2450 phba->fc_stat.elsXmitPRLI++;
2451 elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
2452 spin_lock_irq(&ndlp->lock);
2453 ndlp->nlp_flag |= NLP_PRLI_SND;
2455 /* The vport counters are used for lpfc_scan_finished, but
2456 * the ndlp is used to track outstanding PRLIs for different
2459 vport->fc_prli_sent++;
2460 ndlp->fc4_prli_sent++;
2461 spin_unlock_irq(&ndlp->lock);
2463 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2464 "Issue PRLI: did:x%x refcnt %d",
2465 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
2466 elsiocb->context1 = lpfc_nlp_get(ndlp);
2467 if (!elsiocb->context1)
2470 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2471 if (rc == IOCB_ERROR)
2475 /* The driver supports 2 FC4 types. Make sure
2476 * a PRLI is issued for all types before exiting.
2478 if (phba->sli_rev == LPFC_SLI_REV4 &&
2479 local_nlp_type & (NLP_FC4_FCP | NLP_FC4_NVME))
2480 goto send_next_prli;
2487 spin_lock_irq(&ndlp->lock);
2488 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2489 spin_unlock_irq(&ndlp->lock);
2490 lpfc_els_free_iocb(phba, elsiocb);
2495 * lpfc_rscn_disc - Perform rscn discovery for a vport
2496 * @vport: pointer to a host virtual N_Port data structure.
2498 * This routine performs Registration State Change Notification (RSCN)
2499 * discovery for a @vport. If the @vport's node port recovery count is not
2500 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2501 * the nodes that need recovery. If none of the PLOGI were needed through
2502 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2503 * invoked to check and handle possible more RSCN came in during the period
2504 * of processing the current ones.
2507 lpfc_rscn_disc(struct lpfc_vport *vport)
2509 lpfc_can_disctmo(vport);
2511 /* RSCN discovery */
2512 /* go thru NPR nodes and issue ELS PLOGIs */
2513 if (vport->fc_npr_cnt)
2514 if (lpfc_els_disc_plogi(vport))
2517 lpfc_end_rscn(vport);
2521 * lpfc_adisc_done - Complete the adisc phase of discovery
2522 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2524 * This function is called when the final ADISC is completed during discovery.
2525 * This function handles clearing link attention or issuing reg_vpi depending
2526 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2528 * This function is called with no locks held.
2531 lpfc_adisc_done(struct lpfc_vport *vport)
2533 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2534 struct lpfc_hba *phba = vport->phba;
2537 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2538 * and continue discovery.
2540 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2541 !(vport->fc_flag & FC_RSCN_MODE) &&
2542 (phba->sli_rev < LPFC_SLI_REV4)) {
2543 /* The ADISCs are complete. Doesn't matter if they
2544 * succeeded or failed because the ADISC completion
2545 * routine guarantees to call the state machine and
2546 * the RPI is either unregistered (failed ADISC response)
2547 * or the RPI is still valid and the node is marked
2548 * mapped for a target. The exchanges should be in the
2549 * correct state. This code is specific to SLI3.
2551 lpfc_issue_clear_la(phba, vport);
2552 lpfc_issue_reg_vpi(phba, vport);
2556 * For SLI2, we need to set port_state to READY
2557 * and continue discovery.
2559 if (vport->port_state < LPFC_VPORT_READY) {
2560 /* If we get here, there is nothing to ADISC */
2561 lpfc_issue_clear_la(phba, vport);
2562 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2563 vport->num_disc_nodes = 0;
2564 /* go thru NPR list, issue ELS PLOGIs */
2565 if (vport->fc_npr_cnt)
2566 lpfc_els_disc_plogi(vport);
2567 if (!vport->num_disc_nodes) {
2568 spin_lock_irq(shost->host_lock);
2569 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2570 spin_unlock_irq(shost->host_lock);
2571 lpfc_can_disctmo(vport);
2572 lpfc_end_rscn(vport);
2575 vport->port_state = LPFC_VPORT_READY;
2577 lpfc_rscn_disc(vport);
2581 * lpfc_more_adisc - Issue more adisc as needed
2582 * @vport: pointer to a host virtual N_Port data structure.
2584 * This routine determines whether there are more ndlps on a @vport
2585 * node list need to have Address Discover (ADISC) issued. If so, it will
2586 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2587 * remaining nodes which need to have ADISC sent.
2590 lpfc_more_adisc(struct lpfc_vport *vport)
2592 if (vport->num_disc_nodes)
2593 vport->num_disc_nodes--;
2594 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2595 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2596 "0210 Continue discovery with %d ADISCs to go "
2597 "Data: x%x x%x x%x\n",
2598 vport->num_disc_nodes, vport->fc_adisc_cnt,
2599 vport->fc_flag, vport->port_state);
2600 /* Check to see if there are more ADISCs to be sent */
2601 if (vport->fc_flag & FC_NLP_MORE) {
2602 lpfc_set_disctmo(vport);
2603 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2604 lpfc_els_disc_adisc(vport);
2606 if (!vport->num_disc_nodes)
2607 lpfc_adisc_done(vport);
2612 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2613 * @phba: pointer to lpfc hba data structure.
2614 * @cmdiocb: pointer to lpfc command iocb data structure.
2615 * @rspiocb: pointer to lpfc response iocb data structure.
2617 * This routine is the completion function for issuing the Address Discover
2618 * (ADISC) command. It first checks to see whether link went down during
2619 * the discovery process. If so, the node will be marked as node port
2620 * recovery for issuing discover IOCB by the link attention handler and
2621 * exit. Otherwise, the response status is checked. If error was reported
2622 * in the response status, the ADISC command shall be retried by invoking
2623 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2624 * the response status, the state machine is invoked to set transition
2625 * with respect to NLP_EVT_CMPL_ADISC event.
2628 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2629 struct lpfc_iocbq *rspiocb)
2631 struct lpfc_vport *vport = cmdiocb->vport;
2633 struct lpfc_nodelist *ndlp;
2636 /* we pass cmdiocb to state machine which needs rspiocb as well */
2637 cmdiocb->context_un.rsp_iocb = rspiocb;
2639 irsp = &(rspiocb->iocb);
2640 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2642 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2643 "ADISC cmpl: status:x%x/x%x did:x%x",
2644 irsp->ulpStatus, irsp->un.ulpWord[4],
2647 /* Since ndlp can be freed in the disc state machine, note if this node
2648 * is being used during discovery.
2650 spin_lock_irq(&ndlp->lock);
2651 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
2652 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
2653 spin_unlock_irq(&ndlp->lock);
2654 /* ADISC completes to NPort <nlp_DID> */
2655 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2656 "0104 ADISC completes to NPort x%x "
2657 "Data: x%x x%x x%x x%x x%x\n",
2658 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2659 irsp->ulpTimeout, disc, vport->num_disc_nodes);
2660 /* Check to see if link went down during discovery */
2661 if (lpfc_els_chk_latt(vport)) {
2662 spin_lock_irq(&ndlp->lock);
2663 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2664 spin_unlock_irq(&ndlp->lock);
2668 if (irsp->ulpStatus) {
2669 /* Check for retry */
2670 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2671 /* ELS command is being retried */
2673 spin_lock_irq(&ndlp->lock);
2674 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2675 spin_unlock_irq(&ndlp->lock);
2676 lpfc_set_disctmo(vport);
2681 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
2682 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2683 ndlp->nlp_DID, irsp->ulpStatus,
2684 irsp->un.ulpWord[4]);
2685 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2686 if (lpfc_error_lost_link(irsp))
2689 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2690 NLP_EVT_CMPL_ADISC);
2692 /* As long as this node is not registered with the SCSI or NVMe
2693 * transport, it is no longer an active node. Otherwise
2694 * devloss handles the final cleanup.
2696 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
2697 spin_lock_irq(&ndlp->lock);
2698 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2699 spin_unlock_irq(&ndlp->lock);
2700 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2704 /* Good status, call state machine */
2705 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2706 NLP_EVT_CMPL_ADISC);
2709 /* Check to see if there are more ADISCs to be sent */
2710 if (disc && vport->num_disc_nodes)
2711 lpfc_more_adisc(vport);
2713 lpfc_els_free_iocb(phba, cmdiocb);
2719 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2720 * @vport: pointer to a virtual N_Port data structure.
2721 * @ndlp: pointer to a node-list data structure.
2722 * @retry: number of retries to the command IOCB.
2724 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2725 * @vport. It prepares the payload of the ADISC ELS command, updates the
2726 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2727 * to issue the ADISC ELS command.
2729 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2730 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2731 * will be stored into the context1 field of the IOCB for the completion
2732 * callback function to the ADISC ELS command.
2735 * 0 - successfully issued adisc
2736 * 1 - failed to issue adisc
2739 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2743 struct lpfc_hba *phba = vport->phba;
2745 struct lpfc_iocbq *elsiocb;
2749 cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
2750 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2751 ndlp->nlp_DID, ELS_CMD_ADISC);
2755 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2757 /* For ADISC request, remainder of payload is service parameters */
2758 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
2759 pcmd += sizeof(uint32_t);
2761 /* Fill in ADISC payload */
2762 ap = (ADISC *) pcmd;
2763 ap->hardAL_PA = phba->fc_pref_ALPA;
2764 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
2765 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2766 ap->DID = be32_to_cpu(vport->fc_myDID);
2768 phba->fc_stat.elsXmitADISC++;
2769 elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
2770 spin_lock_irq(&ndlp->lock);
2771 ndlp->nlp_flag |= NLP_ADISC_SND;
2772 spin_unlock_irq(&ndlp->lock);
2773 elsiocb->context1 = lpfc_nlp_get(ndlp);
2774 if (!elsiocb->context1)
2777 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2778 "Issue ADISC: did:x%x refcnt %d",
2779 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
2780 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2781 if (rc == IOCB_ERROR)
2788 spin_lock_irq(&ndlp->lock);
2789 ndlp->nlp_flag &= ~NLP_ADISC_SND;
2790 spin_unlock_irq(&ndlp->lock);
2791 lpfc_els_free_iocb(phba, elsiocb);
2796 * lpfc_cmpl_els_logo - Completion callback function for logo
2797 * @phba: pointer to lpfc hba data structure.
2798 * @cmdiocb: pointer to lpfc command iocb data structure.
2799 * @rspiocb: pointer to lpfc response iocb data structure.
2801 * This routine is the completion function for issuing the ELS Logout (LOGO)
2802 * command. If no error status was reported from the LOGO response, the
2803 * state machine of the associated ndlp shall be invoked for transition with
2804 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2805 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2808 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2809 struct lpfc_iocbq *rspiocb)
2811 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2812 struct lpfc_vport *vport = ndlp->vport;
2814 struct lpfcMboxq *mbox;
2815 unsigned long flags;
2816 uint32_t skip_recovery = 0;
2818 /* we pass cmdiocb to state machine which needs rspiocb as well */
2819 cmdiocb->context_un.rsp_iocb = rspiocb;
2821 irsp = &(rspiocb->iocb);
2822 spin_lock_irq(&ndlp->lock);
2823 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2824 spin_unlock_irq(&ndlp->lock);
2826 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2827 "LOGO cmpl: status:x%x/x%x did:x%x",
2828 irsp->ulpStatus, irsp->un.ulpWord[4],
2831 /* LOGO completes to NPort <nlp_DID> */
2832 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2833 "0105 LOGO completes to NPort x%x "
2834 "Data: x%x x%x x%x x%x\n",
2835 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2836 irsp->ulpTimeout, vport->num_disc_nodes);
2838 if (lpfc_els_chk_latt(vport)) {
2843 /* Check to see if link went down during discovery */
2844 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
2845 /* NLP_EVT_DEVICE_RM should unregister the RPI
2846 * which should abort all outstanding IOs.
2848 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2854 /* The LOGO will not be retried on failure. A LOGO was
2855 * issued to the remote rport and a ACC or RJT or no Answer are
2856 * all acceptable. Note the failure and move forward with
2857 * discovery. The PLOGI will retry.
2859 if (irsp->ulpStatus) {
2861 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
2862 "2756 LOGO failure, No Retry DID:%06X Status:x%x/x%x\n",
2863 ndlp->nlp_DID, irsp->ulpStatus,
2864 irsp->un.ulpWord[4]);
2865 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2866 if (lpfc_error_lost_link(irsp)) {
2872 /* Call state machine. This will unregister the rpi if needed. */
2873 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
2876 /* Driver is done with the IO. */
2877 lpfc_els_free_iocb(phba, cmdiocb);
2880 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2881 if ((vport->fc_flag & FC_PT2PT) &&
2882 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
2883 phba->pport->fc_myDID = 0;
2885 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
2886 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
2887 if (phba->nvmet_support)
2888 lpfc_nvmet_update_targetport(phba);
2890 lpfc_nvme_update_localport(phba->pport);
2893 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2895 lpfc_config_link(phba, mbox);
2896 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2897 mbox->vport = vport;
2898 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
2900 mempool_free(mbox, phba->mbox_mem_pool);
2907 * If the node is a target, the handling attempts to recover the port.
2908 * For any other port type, the rpi is unregistered as an implicit
2911 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) &&
2912 skip_recovery == 0) {
2913 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2914 spin_lock_irqsave(&ndlp->lock, flags);
2915 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2916 spin_unlock_irqrestore(&ndlp->lock, flags);
2918 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2919 "3187 LOGO completes to NPort x%x: Start "
2920 "Recovery Data: x%x x%x x%x x%x\n",
2921 ndlp->nlp_DID, irsp->ulpStatus,
2922 irsp->un.ulpWord[4], irsp->ulpTimeout,
2923 vport->num_disc_nodes);
2924 lpfc_disc_start(vport);
2928 /* Cleanup path for failed REG_RPI handling. If REG_RPI fails, the
2929 * driver sends a LOGO to the rport to cleanup. For fabric and
2930 * initiator ports cleanup the node as long as it the node is not
2931 * register with the transport.
2933 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
2934 spin_lock_irq(&ndlp->lock);
2935 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2936 spin_unlock_irq(&ndlp->lock);
2937 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2943 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2944 * @vport: pointer to a virtual N_Port data structure.
2945 * @ndlp: pointer to a node-list data structure.
2946 * @retry: number of retries to the command IOCB.
2948 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2949 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2950 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2951 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2953 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2954 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2955 * will be stored into the context1 field of the IOCB for the completion
2956 * callback function to the LOGO ELS command.
2958 * Callers of this routine are expected to unregister the RPI first
2961 * 0 - successfully issued logo
2962 * 1 - failed to issue logo
2965 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2968 struct lpfc_hba *phba = vport->phba;
2969 struct lpfc_iocbq *elsiocb;
2974 spin_lock_irq(&ndlp->lock);
2975 if (ndlp->nlp_flag & NLP_LOGO_SND) {
2976 spin_unlock_irq(&ndlp->lock);
2979 spin_unlock_irq(&ndlp->lock);
2981 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
2982 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2983 ndlp->nlp_DID, ELS_CMD_LOGO);
2987 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2988 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
2989 pcmd += sizeof(uint32_t);
2991 /* Fill in LOGO payload */
2992 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
2993 pcmd += sizeof(uint32_t);
2994 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
2996 phba->fc_stat.elsXmitLOGO++;
2997 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
2998 spin_lock_irq(&ndlp->lock);
2999 ndlp->nlp_flag |= NLP_LOGO_SND;
3000 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
3001 spin_unlock_irq(&ndlp->lock);
3002 elsiocb->context1 = lpfc_nlp_get(ndlp);
3003 if (!elsiocb->context1)
3006 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3007 "Issue LOGO: did:x%x refcnt %d",
3008 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
3009 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3010 if (rc == IOCB_ERROR)
3013 spin_lock_irq(&ndlp->lock);
3014 ndlp->nlp_prev_state = ndlp->nlp_state;
3015 spin_unlock_irq(&ndlp->lock);
3016 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3022 spin_lock_irq(&ndlp->lock);
3023 ndlp->nlp_flag &= ~NLP_LOGO_SND;
3024 spin_unlock_irq(&ndlp->lock);
3025 lpfc_els_free_iocb(phba, elsiocb);
3030 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
3031 * @phba: pointer to lpfc hba data structure.
3032 * @cmdiocb: pointer to lpfc command iocb data structure.
3033 * @rspiocb: pointer to lpfc response iocb data structure.
3035 * This routine is a generic completion callback function for ELS commands.
3036 * Specifically, it is the callback function which does not need to perform
3037 * any command specific operations. It is currently used by the ELS command
3038 * issuing routines for RSCN, lpfc_issue_els_rscn, and the ELS Fibre Channel
3039 * Address Resolution Protocol Response (FARPR) routine, lpfc_issue_els_farpr().
3040 * Other than certain debug loggings, this callback function simply invokes the
3041 * lpfc_els_chk_latt() routine to check whether link went down during the
3042 * discovery process.
3045 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3046 struct lpfc_iocbq *rspiocb)
3048 struct lpfc_vport *vport = cmdiocb->vport;
3049 struct lpfc_nodelist *free_ndlp;
3052 irsp = &rspiocb->iocb;
3054 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3055 "ELS cmd cmpl: status:x%x/x%x did:x%x",
3056 irsp->ulpStatus, irsp->un.ulpWord[4],
3057 irsp->un.elsreq64.remoteID);
3059 /* ELS cmd tag <ulpIoTag> completes */
3060 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3061 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
3062 irsp->ulpIoTag, irsp->ulpStatus,
3063 irsp->un.ulpWord[4], irsp->ulpTimeout);
3065 /* Check to see if link went down during discovery */
3066 lpfc_els_chk_latt(vport);
3068 free_ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
3070 lpfc_els_free_iocb(phba, cmdiocb);
3071 lpfc_nlp_put(free_ndlp);
3075 * lpfc_cmpl_els_disc_cmd - Completion callback function for Discovery ELS cmd
3076 * @phba: pointer to lpfc hba data structure.
3077 * @cmdiocb: pointer to lpfc command iocb data structure.
3078 * @rspiocb: pointer to lpfc response iocb data structure.
3080 * This routine is a generic completion callback function for Discovery ELS cmd.
3081 * Currently used by the ELS command issuing routines for the ELS State Change
3082 * Request (SCR), lpfc_issue_els_scr() and the ELS RDF, lpfc_issue_els_rdf().
3083 * These commands will be retried once only for ELS timeout errors.
3086 lpfc_cmpl_els_disc_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3087 struct lpfc_iocbq *rspiocb)
3089 struct lpfc_vport *vport = cmdiocb->vport;
3091 struct lpfc_els_rdf_rsp *prdf;
3092 struct lpfc_dmabuf *pcmd, *prsp;
3095 struct lpfc_nodelist *ndlp = cmdiocb->context1;
3097 irsp = &rspiocb->iocb;
3099 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3100 "ELS cmd cmpl: status:x%x/x%x did:x%x",
3101 irsp->ulpStatus, irsp->un.ulpWord[4],
3102 irsp->un.elsreq64.remoteID);
3103 /* ELS cmd tag <ulpIoTag> completes */
3104 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3105 "0217 ELS cmd tag x%x completes Data: x%x x%x x%x "
3107 irsp->ulpIoTag, irsp->ulpStatus,
3108 irsp->un.ulpWord[4], irsp->ulpTimeout,
3111 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
3115 pdata = (u32 *)pcmd->virt;
3120 /* Only 1 retry for ELS Timeout only */
3121 if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
3122 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3123 IOERR_SEQUENCE_TIMEOUT)) {
3125 if (cmdiocb->retry <= 1) {
3128 lpfc_issue_els_scr(vport, cmdiocb->retry);
3131 cmdiocb->context1 = NULL; /* save ndlp refcnt */
3132 lpfc_issue_els_rdf(vport, cmdiocb->retry);
3137 phba->fc_stat.elsRetryExceeded++;
3139 if (irsp->ulpStatus) {
3140 /* ELS discovery cmd completes with error */
3141 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
3142 "4203 ELS cmd x%x error: x%x x%X\n", cmd,
3143 irsp->ulpStatus, irsp->un.ulpWord[4]);
3147 /* The RDF response doesn't have any impact on the running driver
3148 * but the notification descriptors are dumped here for support.
3150 if (cmd == ELS_CMD_RDF) {
3153 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
3157 prdf = (struct lpfc_els_rdf_rsp *)prsp->virt;
3161 for (i = 0; i < ELS_RDF_REG_TAG_CNT &&
3162 i < be32_to_cpu(prdf->reg_d1.reg_desc.count); i++)
3163 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3164 "4677 Fabric RDF Notification Grant Data: "
3167 prdf->reg_d1.desc_tags[i]));
3171 /* Check to see if link went down during discovery */
3172 lpfc_els_chk_latt(vport);
3173 lpfc_els_free_iocb(phba, cmdiocb);
3179 * lpfc_issue_els_scr - Issue a scr to an node on a vport
3180 * @vport: pointer to a host virtual N_Port data structure.
3181 * @retry: retry counter for the command IOCB.
3183 * This routine issues a State Change Request (SCR) to a fabric node
3184 * on a @vport. The remote node is Fabric Controller (0xfffffd). It
3185 * first search the @vport node list to find the matching ndlp. If no such
3186 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
3187 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
3188 * routine is invoked to send the SCR IOCB.
3190 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3191 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3192 * will be stored into the context1 field of the IOCB for the completion
3193 * callback function to the SCR ELS command.
3196 * 0 - Successfully issued scr command
3197 * 1 - Failed to issue scr command
3200 lpfc_issue_els_scr(struct lpfc_vport *vport, uint8_t retry)
3203 struct lpfc_hba *phba = vport->phba;
3204 struct lpfc_iocbq *elsiocb;
3207 struct lpfc_nodelist *ndlp;
3209 cmdsize = (sizeof(uint32_t) + sizeof(SCR));
3211 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID);
3213 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID);
3216 lpfc_enqueue_node(vport, ndlp);
3219 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3220 ndlp->nlp_DID, ELS_CMD_SCR);
3225 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3227 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
3228 pcmd += sizeof(uint32_t);
3230 /* For SCR, remainder of payload is SCR parameter page */
3231 memset(pcmd, 0, sizeof(SCR));
3232 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
3234 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3235 "Issue SCR: did:x%x",
3236 ndlp->nlp_DID, 0, 0);
3238 phba->fc_stat.elsXmitSCR++;
3239 elsiocb->iocb_cmpl = lpfc_cmpl_els_disc_cmd;
3240 elsiocb->context1 = lpfc_nlp_get(ndlp);
3241 if (!elsiocb->context1)
3244 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3245 "Issue SCR: did:x%x refcnt %d",
3246 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
3248 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3249 if (rc == IOCB_ERROR)
3252 /* Keep the ndlp just in case RDF is being sent */
3258 lpfc_els_free_iocb(phba, elsiocb);
3263 * lpfc_issue_els_rscn - Issue an RSCN to the Fabric Controller (Fabric)
3264 * or the other nport (pt2pt).
3265 * @vport: pointer to a host virtual N_Port data structure.
3266 * @retry: number of retries to the command IOCB.
3268 * This routine issues a RSCN to the Fabric Controller (DID 0xFFFFFD)
3269 * when connected to a fabric, or to the remote port when connected
3270 * in point-to-point mode. When sent to the Fabric Controller, it will
3271 * replay the RSCN to registered recipients.
3273 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3274 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3275 * will be stored into the context1 field of the IOCB for the completion
3276 * callback function to the RSCN ELS command.
3279 * 0 - Successfully issued RSCN command
3280 * 1 - Failed to issue RSCN command
3283 lpfc_issue_els_rscn(struct lpfc_vport *vport, uint8_t retry)
3286 struct lpfc_hba *phba = vport->phba;
3287 struct lpfc_iocbq *elsiocb;
3288 struct lpfc_nodelist *ndlp;
3290 struct fc_els_rscn rscn;
3291 struct fc_els_rscn_page portid;
3294 uint16_t cmdsize = sizeof(*event);
3296 /* Not supported for private loop */
3297 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
3298 !(vport->fc_flag & FC_PUBLIC_LOOP))
3301 if (vport->fc_flag & FC_PT2PT) {
3302 /* find any mapped nport - that would be the other nport */
3303 ndlp = lpfc_findnode_mapped(vport);
3307 nportid = FC_FID_FCTRL;
3308 /* find the fabric controller node */
3309 ndlp = lpfc_findnode_did(vport, nportid);
3311 /* if one didn't exist, make one */
3312 ndlp = lpfc_nlp_init(vport, nportid);
3315 lpfc_enqueue_node(vport, ndlp);
3319 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3320 ndlp->nlp_DID, ELS_CMD_RSCN_XMT);
3325 event = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
3327 event->rscn.rscn_cmd = ELS_RSCN;
3328 event->rscn.rscn_page_len = sizeof(struct fc_els_rscn_page);
3329 event->rscn.rscn_plen = cpu_to_be16(cmdsize);
3331 nportid = vport->fc_myDID;
3332 /* appears that page flags must be 0 for fabric to broadcast RSCN */
3333 event->portid.rscn_page_flags = 0;
3334 event->portid.rscn_fid[0] = (nportid & 0x00FF0000) >> 16;
3335 event->portid.rscn_fid[1] = (nportid & 0x0000FF00) >> 8;
3336 event->portid.rscn_fid[2] = nportid & 0x000000FF;
3338 phba->fc_stat.elsXmitRSCN++;
3339 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
3340 elsiocb->context1 = lpfc_nlp_get(ndlp);
3341 if (!elsiocb->context1)
3344 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3345 "Issue RSCN: did:x%x",
3346 ndlp->nlp_DID, 0, 0);
3348 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3349 if (rc == IOCB_ERROR)
3352 /* This will cause the callback-function lpfc_cmpl_els_cmd to
3353 * trigger the release of node.
3355 if (!(vport->fc_flag & FC_PT2PT))
3361 lpfc_els_free_iocb(phba, elsiocb);
3366 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
3367 * @vport: pointer to a host virtual N_Port data structure.
3368 * @nportid: N_Port identifier to the remote node.
3369 * @retry: number of retries to the command IOCB.
3371 * This routine issues a Fibre Channel Address Resolution Response
3372 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
3373 * is passed into the function. It first search the @vport node list to find
3374 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
3375 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
3376 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
3378 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3379 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3380 * will be stored into the context1 field of the IOCB for the completion
3381 * callback function to the PARPR ELS command.
3384 * 0 - Successfully issued farpr command
3385 * 1 - Failed to issue farpr command
3388 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
3391 struct lpfc_hba *phba = vport->phba;
3392 struct lpfc_iocbq *elsiocb;
3397 struct lpfc_nodelist *ondlp;
3398 struct lpfc_nodelist *ndlp;
3400 cmdsize = (sizeof(uint32_t) + sizeof(FARP));
3402 ndlp = lpfc_findnode_did(vport, nportid);
3404 ndlp = lpfc_nlp_init(vport, nportid);
3407 lpfc_enqueue_node(vport, ndlp);
3410 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3411 ndlp->nlp_DID, ELS_CMD_RNID);
3415 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3417 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
3418 pcmd += sizeof(uint32_t);
3420 /* Fill in FARPR payload */
3421 fp = (FARP *) (pcmd);
3422 memset(fp, 0, sizeof(FARP));
3423 lp = (uint32_t *) pcmd;
3424 *lp++ = be32_to_cpu(nportid);
3425 *lp++ = be32_to_cpu(vport->fc_myDID);
3427 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
3429 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
3430 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
3431 ondlp = lpfc_findnode_did(vport, nportid);
3433 memcpy(&fp->OportName, &ondlp->nlp_portname,
3434 sizeof(struct lpfc_name));
3435 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
3436 sizeof(struct lpfc_name));
3439 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3440 "Issue FARPR: did:x%x",
3441 ndlp->nlp_DID, 0, 0);
3443 phba->fc_stat.elsXmitFARPR++;
3444 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
3445 elsiocb->context1 = lpfc_nlp_get(ndlp);
3446 if (!elsiocb->context1) {
3447 lpfc_els_free_iocb(phba, elsiocb);
3451 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3452 if (rc == IOCB_ERROR) {
3453 /* The additional lpfc_nlp_put will cause the following
3454 * lpfc_els_free_iocb routine to trigger the release of
3458 lpfc_els_free_iocb(phba, elsiocb);
3461 /* This will cause the callback-function lpfc_cmpl_els_cmd to
3462 * trigger the release of the node.
3464 /* Don't release reference count as RDF is likely outstanding */
3469 * lpfc_issue_els_rdf - Register for diagnostic functions from the fabric.
3470 * @vport: pointer to a host virtual N_Port data structure.
3471 * @retry: retry counter for the command IOCB.
3473 * This routine issues an ELS RDF to the Fabric Controller to register
3474 * for diagnostic functions.
3476 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3477 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3478 * will be stored into the context1 field of the IOCB for the completion
3479 * callback function to the RDF ELS command.
3482 * 0 - Successfully issued rdf command
3483 * 1 - Failed to issue rdf command
3486 lpfc_issue_els_rdf(struct lpfc_vport *vport, uint8_t retry)
3488 struct lpfc_hba *phba = vport->phba;
3489 struct lpfc_iocbq *elsiocb;
3490 struct lpfc_els_rdf_req *prdf;
3491 struct lpfc_nodelist *ndlp;
3495 cmdsize = sizeof(*prdf);
3497 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID);
3499 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID);
3502 lpfc_enqueue_node(vport, ndlp);
3505 /* RDF ELS is not required on an NPIV VN_Port. */
3506 if (vport->port_type == LPFC_NPIV_PORT) {
3511 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3512 ndlp->nlp_DID, ELS_CMD_RDF);
3516 /* Configure the payload for the supported FPIN events. */
3517 prdf = (struct lpfc_els_rdf_req *)
3518 (((struct lpfc_dmabuf *)elsiocb->context2)->virt);
3519 memset(prdf, 0, cmdsize);
3520 prdf->rdf.fpin_cmd = ELS_RDF;
3521 prdf->rdf.desc_len = cpu_to_be32(sizeof(struct lpfc_els_rdf_req) -
3522 sizeof(struct fc_els_rdf));
3523 prdf->reg_d1.reg_desc.desc_tag = cpu_to_be32(ELS_DTAG_FPIN_REGISTER);
3524 prdf->reg_d1.reg_desc.desc_len = cpu_to_be32(
3525 FC_TLV_DESC_LENGTH_FROM_SZ(prdf->reg_d1));
3526 prdf->reg_d1.reg_desc.count = cpu_to_be32(ELS_RDF_REG_TAG_CNT);
3527 prdf->reg_d1.desc_tags[0] = cpu_to_be32(ELS_DTAG_LNK_INTEGRITY);
3528 prdf->reg_d1.desc_tags[1] = cpu_to_be32(ELS_DTAG_DELIVERY);
3529 prdf->reg_d1.desc_tags[2] = cpu_to_be32(ELS_DTAG_PEER_CONGEST);
3530 prdf->reg_d1.desc_tags[3] = cpu_to_be32(ELS_DTAG_CONGESTION);
3532 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3533 "6444 Xmit RDF to remote NPORT x%x\n",
3536 elsiocb->iocb_cmpl = lpfc_cmpl_els_disc_cmd;
3537 elsiocb->context1 = lpfc_nlp_get(ndlp);
3538 if (!elsiocb->context1)
3541 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3542 "Issue RDF: did:x%x refcnt %d",
3543 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
3545 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3546 if (rc == IOCB_ERROR)
3553 lpfc_els_free_iocb(phba, elsiocb);
3558 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
3559 * @vport: pointer to a host virtual N_Port data structure.
3560 * @nlp: pointer to a node-list data structure.
3562 * This routine cancels the timer with a delayed IOCB-command retry for
3563 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
3564 * removes the ELS retry event if it presents. In addition, if the
3565 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
3566 * commands are sent for the @vport's nodes that require issuing discovery
3570 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
3572 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3573 struct lpfc_work_evt *evtp;
3575 if (!(nlp->nlp_flag & NLP_DELAY_TMO))
3577 spin_lock_irq(&nlp->lock);
3578 nlp->nlp_flag &= ~NLP_DELAY_TMO;
3579 spin_unlock_irq(&nlp->lock);
3580 del_timer_sync(&nlp->nlp_delayfunc);
3581 nlp->nlp_last_elscmd = 0;
3582 if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
3583 list_del_init(&nlp->els_retry_evt.evt_listp);
3584 /* Decrement nlp reference count held for the delayed retry */
3585 evtp = &nlp->els_retry_evt;
3586 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
3588 if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
3589 spin_lock_irq(&nlp->lock);
3590 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
3591 spin_unlock_irq(&nlp->lock);
3592 if (vport->num_disc_nodes) {
3593 if (vport->port_state < LPFC_VPORT_READY) {
3594 /* Check if there are more ADISCs to be sent */
3595 lpfc_more_adisc(vport);
3597 /* Check if there are more PLOGIs to be sent */
3598 lpfc_more_plogi(vport);
3599 if (vport->num_disc_nodes == 0) {
3600 spin_lock_irq(shost->host_lock);
3601 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3602 spin_unlock_irq(shost->host_lock);
3603 lpfc_can_disctmo(vport);
3604 lpfc_end_rscn(vport);
3613 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
3614 * @t: pointer to the timer function associated data (ndlp).
3616 * This routine is invoked by the ndlp delayed-function timer to check
3617 * whether there is any pending ELS retry event(s) with the node. If not, it
3618 * simply returns. Otherwise, if there is at least one ELS delayed event, it
3619 * adds the delayed events to the HBA work list and invokes the
3620 * lpfc_worker_wake_up() routine to wake up worker thread to process the
3621 * event. Note that lpfc_nlp_get() is called before posting the event to
3622 * the work list to hold reference count of ndlp so that it guarantees the
3623 * reference to ndlp will still be available when the worker thread gets
3624 * to the event associated with the ndlp.
3627 lpfc_els_retry_delay(struct timer_list *t)
3629 struct lpfc_nodelist *ndlp = from_timer(ndlp, t, nlp_delayfunc);
3630 struct lpfc_vport *vport = ndlp->vport;
3631 struct lpfc_hba *phba = vport->phba;
3632 unsigned long flags;
3633 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
3635 spin_lock_irqsave(&phba->hbalock, flags);
3636 if (!list_empty(&evtp->evt_listp)) {
3637 spin_unlock_irqrestore(&phba->hbalock, flags);
3641 /* We need to hold the node by incrementing the reference
3642 * count until the queued work is done
3644 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
3645 if (evtp->evt_arg1) {
3646 evtp->evt = LPFC_EVT_ELS_RETRY;
3647 list_add_tail(&evtp->evt_listp, &phba->work_list);
3648 lpfc_worker_wake_up(phba);
3650 spin_unlock_irqrestore(&phba->hbalock, flags);
3655 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
3656 * @ndlp: pointer to a node-list data structure.
3658 * This routine is the worker-thread handler for processing the @ndlp delayed
3659 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
3660 * the last ELS command from the associated ndlp and invokes the proper ELS
3661 * function according to the delayed ELS command to retry the command.
3664 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
3666 struct lpfc_vport *vport = ndlp->vport;
3667 uint32_t cmd, retry;
3669 spin_lock_irq(&ndlp->lock);
3670 cmd = ndlp->nlp_last_elscmd;
3671 ndlp->nlp_last_elscmd = 0;
3673 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
3674 spin_unlock_irq(&ndlp->lock);
3678 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
3679 spin_unlock_irq(&ndlp->lock);
3681 * If a discovery event readded nlp_delayfunc after timer
3682 * firing and before processing the timer, cancel the
3685 del_timer_sync(&ndlp->nlp_delayfunc);
3686 retry = ndlp->nlp_retry;
3687 ndlp->nlp_retry = 0;
3691 lpfc_issue_els_flogi(vport, ndlp, retry);
3694 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
3695 ndlp->nlp_prev_state = ndlp->nlp_state;
3696 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
3700 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
3701 ndlp->nlp_prev_state = ndlp->nlp_state;
3702 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3706 case ELS_CMD_NVMEPRLI:
3707 if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
3708 ndlp->nlp_prev_state = ndlp->nlp_state;
3709 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3713 if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
3714 ndlp->nlp_prev_state = ndlp->nlp_state;
3715 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3719 if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
3720 lpfc_issue_els_fdisc(vport, ndlp, retry);
3727 * lpfc_link_reset - Issue link reset
3728 * @vport: pointer to a virtual N_Port data structure.
3730 * This routine performs link reset by sending INIT_LINK mailbox command.
3731 * For SLI-3 adapter, link attention interrupt is enabled before issuing
3732 * INIT_LINK mailbox command.
3735 * 0 - Link reset initiated successfully
3736 * 1 - Failed to initiate link reset
3739 lpfc_link_reset(struct lpfc_vport *vport)
3741 struct lpfc_hba *phba = vport->phba;
3746 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3747 "2851 Attempt link reset\n");
3748 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3750 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3751 "2852 Failed to allocate mbox memory");
3755 /* Enable Link attention interrupts */
3756 if (phba->sli_rev <= LPFC_SLI_REV3) {
3757 spin_lock_irq(&phba->hbalock);
3758 phba->sli.sli_flag |= LPFC_PROCESS_LA;
3759 control = readl(phba->HCregaddr);
3760 control |= HC_LAINT_ENA;
3761 writel(control, phba->HCregaddr);
3762 readl(phba->HCregaddr); /* flush */
3763 spin_unlock_irq(&phba->hbalock);
3766 lpfc_init_link(phba, mbox, phba->cfg_topology,
3767 phba->cfg_link_speed);
3768 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3769 mbox->vport = vport;
3770 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3771 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
3772 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3773 "2853 Failed to issue INIT_LINK "
3774 "mbox command, rc:x%x\n", rc);
3775 mempool_free(mbox, phba->mbox_mem_pool);
3783 * lpfc_els_retry - Make retry decision on an els command iocb
3784 * @phba: pointer to lpfc hba data structure.
3785 * @cmdiocb: pointer to lpfc command iocb data structure.
3786 * @rspiocb: pointer to lpfc response iocb data structure.
3788 * This routine makes a retry decision on an ELS command IOCB, which has
3789 * failed. The following ELS IOCBs use this function for retrying the command
3790 * when previously issued command responsed with error status: FLOGI, PLOGI,
3791 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3792 * returned error status, it makes the decision whether a retry shall be
3793 * issued for the command, and whether a retry shall be made immediately or
3794 * delayed. In the former case, the corresponding ELS command issuing-function
3795 * is called to retry the command. In the later case, the ELS command shall
3796 * be posted to the ndlp delayed event and delayed function timer set to the
3797 * ndlp for the delayed command issusing.
3800 * 0 - No retry of els command is made
3801 * 1 - Immediate or delayed retry of els command is made
3804 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3805 struct lpfc_iocbq *rspiocb)
3807 struct lpfc_vport *vport = cmdiocb->vport;
3808 IOCB_t *irsp = &rspiocb->iocb;
3809 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3810 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3813 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
3817 int link_reset = 0, rc;
3820 /* Note: context2 may be 0 for internal driver abort
3821 * of delays ELS command.
3824 if (pcmd && pcmd->virt) {
3825 elscmd = (uint32_t *) (pcmd->virt);
3830 did = ndlp->nlp_DID;
3832 /* We should only hit this case for retrying PLOGI */
3833 did = irsp->un.elsreq64.remoteID;
3834 ndlp = lpfc_findnode_did(vport, did);
3835 if (!ndlp && (cmd != ELS_CMD_PLOGI))
3839 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3840 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3841 *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID);
3843 switch (irsp->ulpStatus) {
3844 case IOSTAT_FCP_RSP_ERROR:
3846 case IOSTAT_REMOTE_STOP:
3847 if (phba->sli_rev == LPFC_SLI_REV4) {
3848 /* This IO was aborted by the target, we don't
3849 * know the rxid and because we did not send the
3850 * ABTS we cannot generate and RRQ.
3852 lpfc_set_rrq_active(phba, ndlp,
3853 cmdiocb->sli4_lxritag, 0, 0);
3856 case IOSTAT_LOCAL_REJECT:
3857 switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
3858 case IOERR_LOOP_OPEN_FAILURE:
3859 if (cmd == ELS_CMD_FLOGI) {
3860 if (PCI_DEVICE_ID_HORNET ==
3861 phba->pcidev->device) {
3862 phba->fc_topology = LPFC_TOPOLOGY_LOOP;
3863 phba->pport->fc_myDID = 0;
3864 phba->alpa_map[0] = 0;
3865 phba->alpa_map[1] = 0;
3868 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
3873 case IOERR_ILLEGAL_COMMAND:
3874 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3875 "0124 Retry illegal cmd x%x "
3876 "retry:x%x delay:x%x\n",
3877 cmd, cmdiocb->retry, delay);
3879 /* All command's retry policy */
3881 if (cmdiocb->retry > 2)
3885 case IOERR_NO_RESOURCES:
3886 logerr = 1; /* HBA out of resources */
3888 if (cmdiocb->retry > 100)
3893 case IOERR_ILLEGAL_FRAME:
3898 case IOERR_INVALID_RPI:
3899 if (cmd == ELS_CMD_PLOGI &&
3900 did == NameServer_DID) {
3901 /* Continue forever if plogi to */
3902 /* the nameserver fails */
3909 case IOERR_SEQUENCE_TIMEOUT:
3910 if (cmd == ELS_CMD_PLOGI &&
3911 did == NameServer_DID &&
3912 (cmdiocb->retry + 1) == maxretry) {
3913 /* Reset the Link */
3923 case IOSTAT_NPORT_RJT:
3924 case IOSTAT_FABRIC_RJT:
3925 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
3931 case IOSTAT_NPORT_BSY:
3932 case IOSTAT_FABRIC_BSY:
3933 logerr = 1; /* Fabric / Remote NPort out of resources */
3938 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
3939 /* Added for Vendor specifc support
3940 * Just keep retrying for these Rsn / Exp codes
3942 switch (stat.un.b.lsRjtRsnCode) {
3943 case LSRJT_UNABLE_TPC:
3944 /* The driver has a VALID PLOGI but the rport has
3945 * rejected the PRLI - can't do it now. Delay
3946 * for 1 second and try again.
3948 * However, if explanation is REQ_UNSUPPORTED there's
3949 * no point to retry PRLI.
3951 if ((cmd == ELS_CMD_PRLI || cmd == ELS_CMD_NVMEPRLI) &&
3952 stat.un.b.lsRjtRsnCodeExp !=
3953 LSEXP_REQ_UNSUPPORTED) {
3955 maxretry = lpfc_max_els_tries + 1;
3960 /* Legacy bug fix code for targets with PLOGI delays. */
3961 if (stat.un.b.lsRjtRsnCodeExp ==
3962 LSEXP_CMD_IN_PROGRESS) {
3963 if (cmd == ELS_CMD_PLOGI) {
3970 if (stat.un.b.lsRjtRsnCodeExp ==
3971 LSEXP_CANT_GIVE_DATA) {
3972 if (cmd == ELS_CMD_PLOGI) {
3979 if (cmd == ELS_CMD_PLOGI) {
3981 maxretry = lpfc_max_els_tries + 1;
3985 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3986 (cmd == ELS_CMD_FDISC) &&
3987 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
3988 lpfc_printf_vlog(vport, KERN_ERR,
3990 "0125 FDISC Failed (x%x). "
3991 "Fabric out of resources\n",
3992 stat.un.lsRjtError);
3993 lpfc_vport_set_state(vport,
3994 FC_VPORT_NO_FABRIC_RSCS);
3998 case LSRJT_LOGICAL_BSY:
3999 if ((cmd == ELS_CMD_PLOGI) ||
4000 (cmd == ELS_CMD_PRLI) ||
4001 (cmd == ELS_CMD_NVMEPRLI)) {
4004 } else if (cmd == ELS_CMD_FDISC) {
4005 /* FDISC retry policy */
4007 if (cmdiocb->retry >= 32)
4013 case LSRJT_LOGICAL_ERR:
4014 /* There are some cases where switches return this
4015 * error when they are not ready and should be returning
4016 * Logical Busy. We should delay every time.
4018 if (cmd == ELS_CMD_FDISC &&
4019 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
4023 } else if (cmd == ELS_CMD_FLOGI &&
4024 stat.un.b.lsRjtRsnCodeExp ==
4025 LSEXP_NOTHING_MORE) {
4026 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf;
4028 lpfc_printf_vlog(vport, KERN_ERR,
4030 "0820 FLOGI Failed (x%x). "
4031 "BBCredit Not Supported\n",
4032 stat.un.lsRjtError);
4036 case LSRJT_PROTOCOL_ERR:
4037 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
4038 (cmd == ELS_CMD_FDISC) &&
4039 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
4040 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
4042 lpfc_printf_vlog(vport, KERN_ERR,
4044 "0122 FDISC Failed (x%x). "
4045 "Fabric Detected Bad WWN\n",
4046 stat.un.lsRjtError);
4047 lpfc_vport_set_state(vport,
4048 FC_VPORT_FABRIC_REJ_WWN);
4051 case LSRJT_VENDOR_UNIQUE:
4052 if ((stat.un.b.vendorUnique == 0x45) &&
4053 (cmd == ELS_CMD_FLOGI)) {
4057 case LSRJT_CMD_UNSUPPORTED:
4058 /* lpfc nvmet returns this type of LS_RJT when it
4059 * receives an FCP PRLI because lpfc nvmet only
4060 * support NVME. ELS request is terminated for FCP4
4063 if (stat.un.b.lsRjtRsnCodeExp ==
4064 LSEXP_REQ_UNSUPPORTED && cmd == ELS_CMD_PRLI) {
4065 spin_lock_irq(&ndlp->lock);
4066 ndlp->nlp_flag |= NLP_FCP_PRLI_RJT;
4067 spin_unlock_irq(&ndlp->lock);
4075 case IOSTAT_INTERMED_RSP:
4084 rc = lpfc_link_reset(vport);
4086 /* Do not give up. Retry PLOGI one more time and attempt
4087 * link reset if PLOGI fails again.
4096 if (did == FDMI_DID)
4099 if ((cmd == ELS_CMD_FLOGI) &&
4100 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
4101 !lpfc_error_lost_link(irsp)) {
4102 /* FLOGI retry policy */
4104 /* retry FLOGI forever */
4105 if (phba->link_flag != LS_LOOPBACK_MODE)
4110 if (cmdiocb->retry >= 100)
4112 else if (cmdiocb->retry >= 32)
4114 } else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) {
4115 /* retry FDISCs every second up to devloss */
4117 maxretry = vport->cfg_devloss_tmo;
4122 if (maxretry && (cmdiocb->retry >= maxretry)) {
4123 phba->fc_stat.elsRetryExceeded++;
4127 if ((vport->load_flag & FC_UNLOADING) != 0)
4132 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) {
4133 /* Stop retrying PLOGI and FDISC if in FCF discovery */
4134 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4135 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4136 "2849 Stop retry ELS command "
4137 "x%x to remote NPORT x%x, "
4138 "Data: x%x x%x\n", cmd, did,
4139 cmdiocb->retry, delay);
4144 /* Retry ELS command <elsCmd> to remote NPORT <did> */
4145 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4146 "0107 Retry ELS command x%x to remote "
4147 "NPORT x%x Data: x%x x%x\n",
4148 cmd, did, cmdiocb->retry, delay);
4150 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
4151 ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
4152 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
4153 IOERR_NO_RESOURCES))) {
4154 /* Don't reset timer for no resources */
4156 /* If discovery / RSCN timer is running, reset it */
4157 if (timer_pending(&vport->fc_disctmo) ||
4158 (vport->fc_flag & FC_RSCN_MODE))
4159 lpfc_set_disctmo(vport);
4162 phba->fc_stat.elsXmitRetry++;
4163 if (ndlp && delay) {
4164 phba->fc_stat.elsDelayRetry++;
4165 ndlp->nlp_retry = cmdiocb->retry;
4167 /* delay is specified in milliseconds */
4168 mod_timer(&ndlp->nlp_delayfunc,
4169 jiffies + msecs_to_jiffies(delay));
4170 spin_lock_irq(&ndlp->lock);
4171 ndlp->nlp_flag |= NLP_DELAY_TMO;
4172 spin_unlock_irq(&ndlp->lock);
4174 ndlp->nlp_prev_state = ndlp->nlp_state;
4175 if ((cmd == ELS_CMD_PRLI) ||
4176 (cmd == ELS_CMD_NVMEPRLI))
4177 lpfc_nlp_set_state(vport, ndlp,
4178 NLP_STE_PRLI_ISSUE);
4180 lpfc_nlp_set_state(vport, ndlp,
4182 ndlp->nlp_last_elscmd = cmd;
4188 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
4191 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
4195 ndlp->nlp_prev_state = ndlp->nlp_state;
4196 lpfc_nlp_set_state(vport, ndlp,
4197 NLP_STE_PLOGI_ISSUE);
4199 lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
4202 ndlp->nlp_prev_state = ndlp->nlp_state;
4203 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
4204 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
4207 case ELS_CMD_NVMEPRLI:
4208 ndlp->nlp_prev_state = ndlp->nlp_state;
4209 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
4210 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
4213 ndlp->nlp_prev_state = ndlp->nlp_state;
4214 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
4215 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
4219 /* No retry ELS command <elsCmd> to remote NPORT <did> */
4221 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4222 "0137 No retry ELS command x%x to remote "
4223 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
4224 cmd, did, irsp->ulpStatus,
4225 irsp->un.ulpWord[4]);
4228 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4229 "0108 No retry ELS command x%x to remote "
4230 "NPORT x%x Retried:%d Error:x%x/%x\n",
4231 cmd, did, cmdiocb->retry, irsp->ulpStatus,
4232 irsp->un.ulpWord[4]);
4238 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
4239 * @phba: pointer to lpfc hba data structure.
4240 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
4242 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
4243 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
4244 * checks to see whether there is a lpfc DMA buffer associated with the
4245 * response of the command IOCB. If so, it will be released before releasing
4246 * the lpfc DMA buffer associated with the IOCB itself.
4249 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
4252 lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
4254 struct lpfc_dmabuf *buf_ptr;
4256 /* Free the response before processing the command. */
4257 if (!list_empty(&buf_ptr1->list)) {
4258 list_remove_head(&buf_ptr1->list, buf_ptr,
4261 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
4264 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
4270 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
4271 * @phba: pointer to lpfc hba data structure.
4272 * @buf_ptr: pointer to the lpfc dma buffer data structure.
4274 * This routine releases the lpfc Direct Memory Access (DMA) buffer
4275 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
4279 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
4282 lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
4284 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
4290 * lpfc_els_free_iocb - Free a command iocb and its associated resources
4291 * @phba: pointer to lpfc hba data structure.
4292 * @elsiocb: pointer to lpfc els command iocb data structure.
4294 * This routine frees a command IOCB and its associated resources. The
4295 * command IOCB data structure contains the reference to various associated
4296 * resources, these fields must be set to NULL if the associated reference
4298 * context1 - reference to ndlp
4299 * context2 - reference to cmd
4300 * context2->next - reference to rsp
4301 * context3 - reference to bpl
4303 * It first properly decrements the reference count held on ndlp for the
4304 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
4305 * set, it invokes the lpfc_els_free_data() routine to release the Direct
4306 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
4307 * adds the DMA buffer the @phba data structure for the delayed release.
4308 * If reference to the Buffer Pointer List (BPL) is present, the
4309 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
4310 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
4311 * invoked to release the IOCB data structure back to @phba IOCBQ list.
4314 * 0 - Success (currently, always return 0)
4317 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
4319 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
4321 /* The I/O job is complete. Clear the context1 data. */
4322 elsiocb->context1 = NULL;
4324 /* context2 = cmd, context2->next = rsp, context3 = bpl */
4325 if (elsiocb->context2) {
4326 if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) {
4327 /* Firmware could still be in progress of DMAing
4328 * payload, so don't free data buffer till after
4331 elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE;
4332 buf_ptr = elsiocb->context2;
4333 elsiocb->context2 = NULL;
4336 spin_lock_irq(&phba->hbalock);
4337 if (!list_empty(&buf_ptr->list)) {
4338 list_remove_head(&buf_ptr->list,
4339 buf_ptr1, struct lpfc_dmabuf,
4341 INIT_LIST_HEAD(&buf_ptr1->list);
4342 list_add_tail(&buf_ptr1->list,
4346 INIT_LIST_HEAD(&buf_ptr->list);
4347 list_add_tail(&buf_ptr->list, &phba->elsbuf);
4349 spin_unlock_irq(&phba->hbalock);
4352 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
4353 lpfc_els_free_data(phba, buf_ptr1);
4354 elsiocb->context2 = NULL;
4358 if (elsiocb->context3) {
4359 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
4360 lpfc_els_free_bpl(phba, buf_ptr);
4361 elsiocb->context3 = NULL;
4363 lpfc_sli_release_iocbq(phba, elsiocb);
4368 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
4369 * @phba: pointer to lpfc hba data structure.
4370 * @cmdiocb: pointer to lpfc command iocb data structure.
4371 * @rspiocb: pointer to lpfc response iocb data structure.
4373 * This routine is the completion callback function to the Logout (LOGO)
4374 * Accept (ACC) Response ELS command. This routine is invoked to indicate
4375 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
4376 * release the ndlp if it has the last reference remaining (reference count
4377 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
4378 * field to NULL to inform the following lpfc_els_free_iocb() routine no
4379 * ndlp reference count needs to be decremented. Otherwise, the ndlp
4380 * reference use-count shall be decremented by the lpfc_els_free_iocb()
4381 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
4382 * IOCB data structure.
4385 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4386 struct lpfc_iocbq *rspiocb)
4388 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
4389 struct lpfc_vport *vport = cmdiocb->vport;
4392 irsp = &rspiocb->iocb;
4393 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4394 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
4395 irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
4396 /* ACC to LOGO completes to NPort <nlp_DID> */
4397 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4398 "0109 ACC to LOGO completes to NPort x%x "
4399 "Data: x%x x%x x%x\n",
4400 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4403 if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
4404 /* NPort Recovery mode or node is just allocated */
4405 if (!lpfc_nlp_not_used(ndlp)) {
4406 /* If the ndlp is being used by another discovery
4407 * thread, just unregister the RPI.
4409 lpfc_unreg_rpi(vport, ndlp);
4411 /* Indicate the node has already released, should
4412 * not reference to it from within lpfc_els_free_iocb.
4414 cmdiocb->context1 = NULL;
4419 * The driver received a LOGO from the rport and has ACK'd it.
4420 * At this point, the driver is done so release the IOCB
4422 lpfc_els_free_iocb(phba, cmdiocb);
4427 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
4428 * @phba: pointer to lpfc hba data structure.
4429 * @pmb: pointer to the driver internal queue element for mailbox command.
4431 * This routine is the completion callback function for unregister default
4432 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
4433 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
4434 * decrements the ndlp reference count held for this completion callback
4435 * function. After that, it invokes the lpfc_nlp_not_used() to check
4436 * whether there is only one reference left on the ndlp. If so, it will
4437 * perform one more decrement and trigger the release of the ndlp.
4440 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4442 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
4443 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
4445 pmb->ctx_buf = NULL;
4446 pmb->ctx_ndlp = NULL;
4448 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4450 mempool_free(pmb, phba->mbox_mem_pool);
4452 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4453 "0006 rpi x%x DID:%x flg:%x %d x%px\n",
4454 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
4455 kref_read(&ndlp->kref),
4457 /* This is the end of the default RPI cleanup logic for
4458 * this ndlp and it could get released. Clear the nlp_flags to
4459 * prevent any further processing.
4461 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
4463 lpfc_nlp_not_used(ndlp);
4470 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
4471 * @phba: pointer to lpfc hba data structure.
4472 * @cmdiocb: pointer to lpfc command iocb data structure.
4473 * @rspiocb: pointer to lpfc response iocb data structure.
4475 * This routine is the completion callback function for ELS Response IOCB
4476 * command. In normal case, this callback function just properly sets the
4477 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
4478 * field in the command IOCB is not NULL, the referred mailbox command will
4479 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
4480 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
4481 * link down event occurred during the discovery, the lpfc_nlp_not_used()
4482 * routine shall be invoked trying to release the ndlp if no other threads
4483 * are currently referring it.
4486 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4487 struct lpfc_iocbq *rspiocb)
4489 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
4490 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
4491 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
4494 LPFC_MBOXQ_t *mbox = NULL;
4495 struct lpfc_dmabuf *mp = NULL;
4496 uint32_t ls_rjt = 0;
4498 irsp = &rspiocb->iocb;
4501 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4502 "3177 ELS response failed\n");
4505 if (cmdiocb->context_un.mbox)
4506 mbox = cmdiocb->context_un.mbox;
4508 /* First determine if this is a LS_RJT cmpl. Note, this callback
4509 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
4511 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
4512 if (ndlp && (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
4513 /* A LS_RJT associated with Default RPI cleanup has its own
4514 * separate code path.
4516 if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
4520 /* Check to see if link went down during discovery */
4521 if (!ndlp || lpfc_els_chk_latt(vport)) {
4523 mp = (struct lpfc_dmabuf *)mbox->ctx_buf;
4525 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4528 mempool_free(mbox, phba->mbox_mem_pool);
4530 if (ndlp && (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
4531 if (lpfc_nlp_not_used(ndlp)) {
4533 /* Indicate the node has already released,
4534 * should not reference to it from within
4535 * the routine lpfc_els_free_iocb.
4537 cmdiocb->context1 = NULL;
4542 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4543 "ELS rsp cmpl: status:x%x/x%x did:x%x",
4544 irsp->ulpStatus, irsp->un.ulpWord[4],
4545 cmdiocb->iocb.un.elsreq64.remoteID);
4546 /* ELS response tag <ulpIoTag> completes */
4547 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4548 "0110 ELS response tag x%x completes "
4549 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
4550 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
4551 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
4552 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4555 if ((rspiocb->iocb.ulpStatus == 0) &&
4556 (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
4557 if (!lpfc_unreg_rpi(vport, ndlp) &&
4558 (!(vport->fc_flag & FC_PT2PT))) {
4559 if (ndlp->nlp_state == NLP_STE_REG_LOGIN_ISSUE) {
4560 lpfc_printf_vlog(vport, KERN_INFO,
4564 "Data: x%x x%x x%x\n",
4571 lpfc_mbuf_free(phba, mp->virt,
4575 mempool_free(mbox, phba->mbox_mem_pool);
4580 /* Increment reference count to ndlp to hold the
4581 * reference to ndlp for the callback function.
4583 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
4584 if (!mbox->ctx_ndlp)
4587 mbox->vport = vport;
4588 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
4589 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
4590 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
4593 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
4594 ndlp->nlp_prev_state = ndlp->nlp_state;
4595 lpfc_nlp_set_state(vport, ndlp,
4596 NLP_STE_REG_LOGIN_ISSUE);
4599 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
4600 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
4601 != MBX_NOT_FINISHED)
4604 /* Decrement the ndlp reference count we
4605 * set for this failed mailbox command.
4608 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
4610 /* ELS rsp: Cannot issue reg_login for <NPortid> */
4611 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4612 "0138 ELS rsp: Cannot issue reg_login for x%x "
4613 "Data: x%x x%x x%x\n",
4614 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4617 if (lpfc_nlp_not_used(ndlp)) {
4619 /* Indicate node has already been released,
4620 * should not reference to it from within
4621 * the routine lpfc_els_free_iocb.
4623 cmdiocb->context1 = NULL;
4626 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
4627 if (!lpfc_error_lost_link(irsp) &&
4628 ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
4629 if (lpfc_nlp_not_used(ndlp)) {
4631 /* Indicate node has already been
4632 * released, should not reference
4633 * to it from within the routine
4634 * lpfc_els_free_iocb.
4636 cmdiocb->context1 = NULL;
4640 mp = (struct lpfc_dmabuf *)mbox->ctx_buf;
4642 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4645 mempool_free(mbox, phba->mbox_mem_pool);
4648 if (ndlp && shost) {
4649 spin_lock_irq(&ndlp->lock);
4651 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN;
4652 ndlp->nlp_flag &= ~NLP_RM_DFLT_RPI;
4653 spin_unlock_irq(&ndlp->lock);
4655 /* If the node is not being used by another discovery thread,
4656 * and we are sending a reject, we are done with it.
4657 * Release driver reference count here and free associated
4661 if (lpfc_nlp_not_used(ndlp))
4662 /* Indicate node has already been released,
4663 * should not reference to it from within
4664 * the routine lpfc_els_free_iocb.
4666 cmdiocb->context1 = NULL;
4669 /* Release the originating I/O reference. */
4670 lpfc_els_free_iocb(phba, cmdiocb);
4676 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
4677 * @vport: pointer to a host virtual N_Port data structure.
4678 * @flag: the els command code to be accepted.
4679 * @oldiocb: pointer to the original lpfc command iocb data structure.
4680 * @ndlp: pointer to a node-list data structure.
4681 * @mbox: pointer to the driver internal queue element for mailbox command.
4683 * This routine prepares and issues an Accept (ACC) response IOCB
4684 * command. It uses the @flag to properly set up the IOCB field for the
4685 * specific ACC response command to be issued and invokes the
4686 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
4687 * @mbox pointer is passed in, it will be put into the context_un.mbox
4688 * field of the IOCB for the completion callback function to issue the
4689 * mailbox command to the HBA later when callback is invoked.
4691 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4692 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4693 * will be stored into the context1 field of the IOCB for the completion
4694 * callback function to the corresponding response ELS IOCB command.
4697 * 0 - Successfully issued acc response
4698 * 1 - Failed to issue acc response
4701 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
4702 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4705 struct lpfc_hba *phba = vport->phba;
4708 struct lpfc_iocbq *elsiocb;
4710 struct serv_parm *sp;
4713 ELS_PKT *els_pkt_ptr;
4715 oldcmd = &oldiocb->iocb;
4719 cmdsize = sizeof(uint32_t);
4720 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4721 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
4723 spin_lock_irq(&ndlp->lock);
4724 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4725 spin_unlock_irq(&ndlp->lock);
4729 icmd = &elsiocb->iocb;
4730 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4731 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4732 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4733 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4734 pcmd += sizeof(uint32_t);
4736 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4737 "Issue ACC: did:x%x flg:x%x",
4738 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4742 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
4743 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4744 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
4748 icmd = &elsiocb->iocb;
4749 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4750 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4751 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4754 elsiocb->context_un.mbox = mbox;
4756 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4757 pcmd += sizeof(uint32_t);
4758 sp = (struct serv_parm *)pcmd;
4760 if (flag == ELS_CMD_FLOGI) {
4761 /* Copy the received service parameters back */
4762 memcpy(sp, &phba->fc_fabparam,
4763 sizeof(struct serv_parm));
4765 /* Clear the F_Port bit */
4768 /* Mark all class service parameters as invalid */
4769 sp->cls1.classValid = 0;
4770 sp->cls2.classValid = 0;
4771 sp->cls3.classValid = 0;
4772 sp->cls4.classValid = 0;
4774 /* Copy our worldwide names */
4775 memcpy(&sp->portName, &vport->fc_sparam.portName,
4776 sizeof(struct lpfc_name));
4777 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
4778 sizeof(struct lpfc_name));
4780 memcpy(pcmd, &vport->fc_sparam,
4781 sizeof(struct serv_parm));
4783 sp->cmn.valid_vendor_ver_level = 0;
4784 memset(sp->un.vendorVersion, 0,
4785 sizeof(sp->un.vendorVersion));
4786 sp->cmn.bbRcvSizeMsb &= 0xF;
4788 /* If our firmware supports this feature, convey that
4789 * info to the target using the vendor specific field.
4791 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) {
4792 sp->cmn.valid_vendor_ver_level = 1;
4793 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID);
4795 cpu_to_be32(LPFC_VV_SUPPRESS_RSP);
4799 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4800 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
4801 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4804 cmdsize = sizeof(uint32_t) + sizeof(PRLO);
4805 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
4806 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
4810 icmd = &elsiocb->iocb;
4811 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4812 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4813 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4815 memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
4816 sizeof(uint32_t) + sizeof(PRLO));
4817 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
4818 els_pkt_ptr = (ELS_PKT *) pcmd;
4819 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
4821 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4822 "Issue ACC PRLO: did:x%x flg:x%x",
4823 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4828 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
4829 spin_lock_irq(&ndlp->lock);
4830 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4831 ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
4832 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4833 spin_unlock_irq(&ndlp->lock);
4834 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
4836 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4839 phba->fc_stat.elsXmitACC++;
4840 elsiocb->context1 = lpfc_nlp_get(ndlp);
4841 if (!elsiocb->context1)
4844 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4845 if (rc == IOCB_ERROR)
4848 /* Xmit ELS ACC response tag <ulpIoTag> */
4849 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4850 "0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, "
4851 "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x "
4852 "RPI: x%x, fc_flag x%x\n",
4853 rc, elsiocb->iotag, elsiocb->sli4_xritag,
4854 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4855 ndlp->nlp_rpi, vport->fc_flag);
4861 lpfc_els_free_iocb(phba, elsiocb);
4866 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4867 * @vport: pointer to a virtual N_Port data structure.
4868 * @rejectError: reject response to issue
4869 * @oldiocb: pointer to the original lpfc command iocb data structure.
4870 * @ndlp: pointer to a node-list data structure.
4871 * @mbox: pointer to the driver internal queue element for mailbox command.
4873 * This routine prepares and issue an Reject (RJT) response IOCB
4874 * command. If a @mbox pointer is passed in, it will be put into the
4875 * context_un.mbox field of the IOCB for the completion callback function
4876 * to issue to the HBA later.
4878 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4879 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4880 * will be stored into the context1 field of the IOCB for the completion
4881 * callback function to the reject response ELS IOCB command.
4884 * 0 - Successfully issued reject response
4885 * 1 - Failed to issue reject response
4888 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
4889 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4893 struct lpfc_hba *phba = vport->phba;
4896 struct lpfc_iocbq *elsiocb;
4900 cmdsize = 2 * sizeof(uint32_t);
4901 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4902 ndlp->nlp_DID, ELS_CMD_LS_RJT);
4906 icmd = &elsiocb->iocb;
4907 oldcmd = &oldiocb->iocb;
4908 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4909 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4910 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4912 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
4913 pcmd += sizeof(uint32_t);
4914 *((uint32_t *) (pcmd)) = rejectError;
4917 elsiocb->context_un.mbox = mbox;
4919 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4920 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4921 "0129 Xmit ELS RJT x%x response tag x%x "
4922 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4924 rejectError, elsiocb->iotag,
4925 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
4926 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
4927 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4928 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4929 ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
4931 phba->fc_stat.elsXmitLSRJT++;
4932 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4933 elsiocb->context1 = lpfc_nlp_get(ndlp);
4934 if (!elsiocb->context1)
4937 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4938 if (rc == IOCB_ERROR)
4946 lpfc_els_free_iocb(phba, elsiocb);
4951 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4952 * @vport: pointer to a virtual N_Port data structure.
4953 * @oldiocb: pointer to the original lpfc command iocb data structure.
4954 * @ndlp: pointer to a node-list data structure.
4956 * This routine prepares and issues an Accept (ACC) response to Address
4957 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4958 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4960 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4961 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4962 * will be stored into the context1 field of the IOCB for the completion
4963 * callback function to the ADISC Accept response ELS IOCB command.
4966 * 0 - Successfully issued acc adisc response
4967 * 1 - Failed to issue adisc acc response
4970 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4971 struct lpfc_nodelist *ndlp)
4973 struct lpfc_hba *phba = vport->phba;
4975 IOCB_t *icmd, *oldcmd;
4976 struct lpfc_iocbq *elsiocb;
4981 cmdsize = sizeof(uint32_t) + sizeof(ADISC);
4982 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4983 ndlp->nlp_DID, ELS_CMD_ACC);
4987 icmd = &elsiocb->iocb;
4988 oldcmd = &oldiocb->iocb;
4989 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4990 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4992 /* Xmit ADISC ACC response tag <ulpIoTag> */
4993 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4994 "0130 Xmit ADISC ACC response iotag x%x xri: "
4995 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4996 elsiocb->iotag, elsiocb->iocb.ulpContext,
4997 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4999 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5001 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5002 pcmd += sizeof(uint32_t);
5004 ap = (ADISC *) (pcmd);
5005 ap->hardAL_PA = phba->fc_pref_ALPA;
5006 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
5007 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
5008 ap->DID = be32_to_cpu(vport->fc_myDID);
5010 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5011 "Issue ACC ADISC: did:x%x flg:x%x refcnt %d",
5012 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
5014 phba->fc_stat.elsXmitACC++;
5015 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5016 elsiocb->context1 = lpfc_nlp_get(ndlp);
5017 if (!elsiocb->context1)
5020 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5021 if (rc == IOCB_ERROR)
5024 /* Xmit ELS ACC response tag <ulpIoTag> */
5025 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5026 "0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, "
5027 "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x "
5028 "RPI: x%x, fc_flag x%x\n",
5029 rc, elsiocb->iotag, elsiocb->sli4_xritag,
5030 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5031 ndlp->nlp_rpi, vport->fc_flag);
5037 lpfc_els_free_iocb(phba, elsiocb);
5042 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
5043 * @vport: pointer to a virtual N_Port data structure.
5044 * @oldiocb: pointer to the original lpfc command iocb data structure.
5045 * @ndlp: pointer to a node-list data structure.
5047 * This routine prepares and issues an Accept (ACC) response to Process
5048 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
5049 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
5051 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5052 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5053 * will be stored into the context1 field of the IOCB for the completion
5054 * callback function to the PRLI Accept response ELS IOCB command.
5057 * 0 - Successfully issued acc prli response
5058 * 1 - Failed to issue acc prli response
5061 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
5062 struct lpfc_nodelist *ndlp)
5064 struct lpfc_hba *phba = vport->phba;
5066 struct lpfc_nvme_prli *npr_nvme;
5070 struct lpfc_iocbq *elsiocb;
5073 uint32_t prli_fc4_req, *req_payload;
5074 struct lpfc_dmabuf *req_buf;
5078 /* Need the incoming PRLI payload to determine if the ACC is for an
5079 * FC4 or NVME PRLI type. The PRLI type is at word 1.
5081 req_buf = (struct lpfc_dmabuf *)oldiocb->context2;
5082 req_payload = (((uint32_t *)req_buf->virt) + 1);
5084 /* PRLI type payload is at byte 3 for FCP or NVME. */
5085 prli_fc4_req = be32_to_cpu(*req_payload);
5086 prli_fc4_req = (prli_fc4_req >> 24) & 0xff;
5087 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5088 "6127 PRLI_ACC: Req Type x%x, Word1 x%08x\n",
5089 prli_fc4_req, *((uint32_t *)req_payload));
5091 if (prli_fc4_req == PRLI_FCP_TYPE) {
5092 cmdsize = sizeof(uint32_t) + sizeof(PRLI);
5093 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
5094 } else if (prli_fc4_req & PRLI_NVME_TYPE) {
5095 cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli);
5096 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK));
5101 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
5102 ndlp->nlp_DID, elsrspcmd);
5106 icmd = &elsiocb->iocb;
5107 oldcmd = &oldiocb->iocb;
5108 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
5109 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
5111 /* Xmit PRLI ACC response tag <ulpIoTag> */
5112 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5113 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
5114 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
5115 elsiocb->iotag, elsiocb->iocb.ulpContext,
5116 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5118 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5119 memset(pcmd, 0, cmdsize);
5121 *((uint32_t *)(pcmd)) = elsrspcmd;
5122 pcmd += sizeof(uint32_t);
5124 /* For PRLI, remainder of payload is PRLI parameter page */
5127 if (prli_fc4_req == PRLI_FCP_TYPE) {
5129 * If the remote port is a target and our firmware version
5130 * is 3.20 or later, set the following bits for FC-TAPE
5133 npr = (PRLI *) pcmd;
5134 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
5135 (vpd->rev.feaLevelHigh >= 0x02)) {
5136 npr->ConfmComplAllowed = 1;
5138 npr->TaskRetryIdReq = 1;
5140 npr->acceptRspCode = PRLI_REQ_EXECUTED;
5141 npr->estabImagePair = 1;
5142 npr->readXferRdyDis = 1;
5143 npr->ConfmComplAllowed = 1;
5144 npr->prliType = PRLI_FCP_TYPE;
5145 npr->initiatorFunc = 1;
5146 } else if (prli_fc4_req & PRLI_NVME_TYPE) {
5147 /* Respond with an NVME PRLI Type */
5148 npr_nvme = (struct lpfc_nvme_prli *) pcmd;
5149 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
5150 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */
5151 bf_set(prli_acc_rsp_code, npr_nvme, PRLI_REQ_EXECUTED);
5152 if (phba->nvmet_support) {
5153 bf_set(prli_tgt, npr_nvme, 1);
5154 bf_set(prli_disc, npr_nvme, 1);
5155 if (phba->cfg_nvme_enable_fb) {
5156 bf_set(prli_fba, npr_nvme, 1);
5158 /* TBD. Target mode needs to post buffers
5159 * that support the configured first burst
5162 bf_set(prli_fb_sz, npr_nvme,
5163 phba->cfg_nvmet_fb_size);
5166 bf_set(prli_init, npr_nvme, 1);
5169 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
5170 "6015 NVME issue PRLI ACC word1 x%08x "
5171 "word4 x%08x word5 x%08x flag x%x, "
5172 "fcp_info x%x nlp_type x%x\n",
5173 npr_nvme->word1, npr_nvme->word4,
5174 npr_nvme->word5, ndlp->nlp_flag,
5175 ndlp->nlp_fcp_info, ndlp->nlp_type);
5176 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1);
5177 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4);
5178 npr_nvme->word5 = cpu_to_be32(npr_nvme->word5);
5180 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5181 "6128 Unknown FC_TYPE x%x x%x ndlp x%06x\n",
5182 prli_fc4_req, ndlp->nlp_fc4_type,
5185 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5186 "Issue ACC PRLI: did:x%x flg:x%x",
5187 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
5189 phba->fc_stat.elsXmitACC++;
5190 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5191 elsiocb->context1 = lpfc_nlp_get(ndlp);
5192 if (!elsiocb->context1)
5195 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5196 if (rc == IOCB_ERROR)
5203 lpfc_els_free_iocb(phba, elsiocb);
5208 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
5209 * @vport: pointer to a virtual N_Port data structure.
5210 * @format: rnid command format.
5211 * @oldiocb: pointer to the original lpfc command iocb data structure.
5212 * @ndlp: pointer to a node-list data structure.
5214 * This routine issues a Request Node Identification Data (RNID) Accept
5215 * (ACC) response. It constructs the RNID ACC response command according to
5216 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
5217 * issue the response. Note that this command does not need to hold the ndlp
5218 * reference count for the callback. So, the ndlp reference count taken by
5219 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
5220 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
5221 * there is no ndlp reference available.
5223 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5224 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5225 * will be stored into the context1 field of the IOCB for the completion
5226 * callback function. However, for the RNID Accept Response ELS command,
5227 * this is undone later by this routine after the IOCB is allocated.
5230 * 0 - Successfully issued acc rnid response
5231 * 1 - Failed to issue acc rnid response
5234 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
5235 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
5237 struct lpfc_hba *phba = vport->phba;
5239 IOCB_t *icmd, *oldcmd;
5240 struct lpfc_iocbq *elsiocb;
5245 cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
5246 + (2 * sizeof(struct lpfc_name));
5248 cmdsize += sizeof(RNID_TOP_DISC);
5250 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
5251 ndlp->nlp_DID, ELS_CMD_ACC);
5255 icmd = &elsiocb->iocb;
5256 oldcmd = &oldiocb->iocb;
5257 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
5258 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
5260 /* Xmit RNID ACC response tag <ulpIoTag> */
5261 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5262 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
5263 elsiocb->iotag, elsiocb->iocb.ulpContext);
5264 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5265 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5266 pcmd += sizeof(uint32_t);
5268 memset(pcmd, 0, sizeof(RNID));
5269 rn = (RNID *) (pcmd);
5270 rn->Format = format;
5271 rn->CommonLen = (2 * sizeof(struct lpfc_name));
5272 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
5273 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
5276 rn->SpecificLen = 0;
5278 case RNID_TOPOLOGY_DISC:
5279 rn->SpecificLen = sizeof(RNID_TOP_DISC);
5280 memcpy(&rn->un.topologyDisc.portName,
5281 &vport->fc_portname, sizeof(struct lpfc_name));
5282 rn->un.topologyDisc.unitType = RNID_HBA;
5283 rn->un.topologyDisc.physPort = 0;
5284 rn->un.topologyDisc.attachedNodes = 0;
5288 rn->SpecificLen = 0;
5292 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5293 "Issue ACC RNID: did:x%x flg:x%x refcnt %d",
5294 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
5296 phba->fc_stat.elsXmitACC++;
5297 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5298 elsiocb->context1 = lpfc_nlp_get(ndlp);
5299 if (!elsiocb->context1)
5302 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5303 if (rc == IOCB_ERROR)
5311 lpfc_els_free_iocb(phba, elsiocb);
5316 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
5317 * @vport: pointer to a virtual N_Port data structure.
5318 * @iocb: pointer to the lpfc command iocb data structure.
5319 * @ndlp: pointer to a node-list data structure.
5324 lpfc_els_clear_rrq(struct lpfc_vport *vport,
5325 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
5327 struct lpfc_hba *phba = vport->phba;
5332 struct lpfc_node_rrq *prrq;
5335 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
5336 pcmd += sizeof(uint32_t);
5337 rrq = (struct RRQ *)pcmd;
5338 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
5339 rxid = bf_get(rrq_rxid, rrq);
5341 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5342 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
5344 be32_to_cpu(bf_get(rrq_did, rrq)),
5345 bf_get(rrq_oxid, rrq),
5347 iocb->iotag, iocb->iocb.ulpContext);
5349 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5350 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
5351 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
5352 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
5353 xri = bf_get(rrq_oxid, rrq);
5356 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
5358 lpfc_clr_rrq_active(phba, xri, prrq);
5363 * lpfc_els_rsp_echo_acc - Issue echo acc response
5364 * @vport: pointer to a virtual N_Port data structure.
5365 * @data: pointer to echo data to return in the accept.
5366 * @oldiocb: pointer to the original lpfc command iocb data structure.
5367 * @ndlp: pointer to a node-list data structure.
5370 * 0 - Successfully issued acc echo response
5371 * 1 - Failed to issue acc echo response
5374 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
5375 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
5377 struct lpfc_hba *phba = vport->phba;
5378 struct lpfc_iocbq *elsiocb;
5383 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
5385 /* The accumulated length can exceed the BPL_SIZE. For
5386 * now, use this as the limit
5388 if (cmdsize > LPFC_BPL_SIZE)
5389 cmdsize = LPFC_BPL_SIZE;
5390 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
5391 ndlp->nlp_DID, ELS_CMD_ACC);
5395 elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */
5396 elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id;
5398 /* Xmit ECHO ACC response tag <ulpIoTag> */
5399 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5400 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
5401 elsiocb->iotag, elsiocb->iocb.ulpContext);
5402 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
5403 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5404 pcmd += sizeof(uint32_t);
5405 memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
5407 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5408 "Issue ACC ECHO: did:x%x flg:x%x refcnt %d",
5409 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
5411 phba->fc_stat.elsXmitACC++;
5412 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5413 elsiocb->context1 = lpfc_nlp_get(ndlp);
5414 if (!elsiocb->context1)
5417 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5418 if (rc == IOCB_ERROR)
5425 lpfc_els_free_iocb(phba, elsiocb);
5430 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
5431 * @vport: pointer to a host virtual N_Port data structure.
5433 * This routine issues Address Discover (ADISC) ELS commands to those
5434 * N_Ports which are in node port recovery state and ADISC has not been issued
5435 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
5436 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
5437 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
5438 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
5439 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
5440 * IOCBs quit for later pick up. On the other hand, after walking through
5441 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
5442 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
5443 * no more ADISC need to be sent.
5446 * The number of N_Ports with adisc issued.
5449 lpfc_els_disc_adisc(struct lpfc_vport *vport)
5451 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5452 struct lpfc_nodelist *ndlp, *next_ndlp;
5455 /* go thru NPR nodes and issue any remaining ELS ADISCs */
5456 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
5457 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
5458 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
5459 (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
5460 spin_lock_irq(&ndlp->lock);
5461 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5462 spin_unlock_irq(&ndlp->lock);
5463 ndlp->nlp_prev_state = ndlp->nlp_state;
5464 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
5465 lpfc_issue_els_adisc(vport, ndlp, 0);
5467 vport->num_disc_nodes++;
5468 if (vport->num_disc_nodes >=
5469 vport->cfg_discovery_threads) {
5470 spin_lock_irq(shost->host_lock);
5471 vport->fc_flag |= FC_NLP_MORE;
5472 spin_unlock_irq(shost->host_lock);
5477 if (sentadisc == 0) {
5478 spin_lock_irq(shost->host_lock);
5479 vport->fc_flag &= ~FC_NLP_MORE;
5480 spin_unlock_irq(shost->host_lock);
5486 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
5487 * @vport: pointer to a host virtual N_Port data structure.
5489 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
5490 * which are in node port recovery state, with a @vport. Each time an ELS
5491 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
5492 * the per @vport number of discover count (num_disc_nodes) shall be
5493 * incremented. If the num_disc_nodes reaches a pre-configured threshold
5494 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
5495 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
5496 * later pick up. On the other hand, after walking through all the ndlps with
5497 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
5498 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
5499 * PLOGI need to be sent.
5502 * The number of N_Ports with plogi issued.
5505 lpfc_els_disc_plogi(struct lpfc_vport *vport)
5507 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5508 struct lpfc_nodelist *ndlp, *next_ndlp;
5511 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
5512 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
5513 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
5514 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
5515 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
5516 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
5517 ndlp->nlp_prev_state = ndlp->nlp_state;
5518 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
5519 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
5521 vport->num_disc_nodes++;
5522 if (vport->num_disc_nodes >=
5523 vport->cfg_discovery_threads) {
5524 spin_lock_irq(shost->host_lock);
5525 vport->fc_flag |= FC_NLP_MORE;
5526 spin_unlock_irq(shost->host_lock);
5532 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5533 "6452 Discover PLOGI %d flag x%x\n",
5534 sentplogi, vport->fc_flag);
5537 lpfc_set_disctmo(vport);
5540 spin_lock_irq(shost->host_lock);
5541 vport->fc_flag &= ~FC_NLP_MORE;
5542 spin_unlock_irq(shost->host_lock);
5548 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
5552 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
5553 desc->payload.els_req = word0;
5554 desc->length = cpu_to_be32(sizeof(desc->payload));
5556 return sizeof(struct fc_rdp_link_service_desc);
5560 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
5561 uint8_t *page_a0, uint8_t *page_a2)
5563 uint16_t wavelength;
5564 uint16_t temperature;
5570 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
5571 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
5573 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
5575 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
5576 &page_a0[SSF_TRANSCEIVER_CODE_B4];
5577 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
5578 &page_a0[SSF_TRANSCEIVER_CODE_B5];
5580 if ((trasn_code_byte4->fc_sw_laser) ||
5581 (trasn_code_byte5->fc_sw_laser_sl) ||
5582 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
5583 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
5584 } else if (trasn_code_byte4->fc_lw_laser) {
5585 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
5586 page_a0[SSF_WAVELENGTH_B0];
5587 if (wavelength == SFP_WAVELENGTH_LC1310)
5588 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
5589 if (wavelength == SFP_WAVELENGTH_LL1550)
5590 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
5592 /* check if its SFP+ */
5593 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
5594 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
5595 << SFP_FLAG_CT_SHIFT;
5597 /* check if its OPTICAL */
5598 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
5599 SFP_FLAG_IS_OPTICAL_PORT : 0)
5600 << SFP_FLAG_IS_OPTICAL_SHIFT;
5602 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
5603 page_a2[SFF_TEMPERATURE_B0]);
5604 vcc = (page_a2[SFF_VCC_B1] << 8 |
5605 page_a2[SFF_VCC_B0]);
5606 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
5607 page_a2[SFF_TXPOWER_B0]);
5608 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
5609 page_a2[SFF_TX_BIAS_CURRENT_B0]);
5610 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
5611 page_a2[SFF_RXPOWER_B0]);
5612 desc->sfp_info.temperature = cpu_to_be16(temperature);
5613 desc->sfp_info.rx_power = cpu_to_be16(rx_power);
5614 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
5615 desc->sfp_info.tx_power = cpu_to_be16(tx_power);
5616 desc->sfp_info.vcc = cpu_to_be16(vcc);
5618 desc->sfp_info.flags = cpu_to_be16(flag);
5619 desc->length = cpu_to_be32(sizeof(desc->sfp_info));
5621 return sizeof(struct fc_rdp_sfp_desc);
5625 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
5630 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
5632 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
5634 desc->info.port_type = cpu_to_be32(type);
5636 desc->info.link_status.link_failure_cnt =
5637 cpu_to_be32(stat->linkFailureCnt);
5638 desc->info.link_status.loss_of_synch_cnt =
5639 cpu_to_be32(stat->lossSyncCnt);
5640 desc->info.link_status.loss_of_signal_cnt =
5641 cpu_to_be32(stat->lossSignalCnt);
5642 desc->info.link_status.primitive_seq_proto_err =
5643 cpu_to_be32(stat->primSeqErrCnt);
5644 desc->info.link_status.invalid_trans_word =
5645 cpu_to_be32(stat->invalidXmitWord);
5646 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
5648 desc->length = cpu_to_be32(sizeof(desc->info));
5650 return sizeof(struct fc_rdp_link_error_status_desc);
5654 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
5655 struct lpfc_vport *vport)
5659 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG);
5661 bbCredit = vport->fc_sparam.cmn.bbCreditLsb |
5662 (vport->fc_sparam.cmn.bbCreditMsb << 8);
5663 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit);
5664 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
5665 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb |
5666 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8);
5667 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit);
5669 desc->bbc_info.attached_port_bbc = 0;
5672 desc->bbc_info.rtt = 0;
5673 desc->length = cpu_to_be32(sizeof(desc->bbc_info));
5675 return sizeof(struct fc_rdp_bbc_desc);
5679 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba,
5680 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
5684 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5686 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM];
5687 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM];
5688 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING];
5689 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING];
5691 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
5692 flags |= RDP_OET_HIGH_ALARM;
5693 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
5694 flags |= RDP_OET_LOW_ALARM;
5695 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
5696 flags |= RDP_OET_HIGH_WARNING;
5697 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
5698 flags |= RDP_OET_LOW_WARNING;
5700 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT);
5701 desc->oed_info.function_flags = cpu_to_be32(flags);
5702 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5703 return sizeof(struct fc_rdp_oed_sfp_desc);
5707 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba,
5708 struct fc_rdp_oed_sfp_desc *desc,
5713 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5715 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM];
5716 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM];
5717 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING];
5718 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING];
5720 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
5721 flags |= RDP_OET_HIGH_ALARM;
5722 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE)
5723 flags |= RDP_OET_LOW_ALARM;
5724 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
5725 flags |= RDP_OET_HIGH_WARNING;
5726 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE)
5727 flags |= RDP_OET_LOW_WARNING;
5729 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT);
5730 desc->oed_info.function_flags = cpu_to_be32(flags);
5731 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5732 return sizeof(struct fc_rdp_oed_sfp_desc);
5736 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba,
5737 struct fc_rdp_oed_sfp_desc *desc,
5742 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5744 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM];
5745 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM];
5746 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING];
5747 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING];
5749 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS)
5750 flags |= RDP_OET_HIGH_ALARM;
5751 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS)
5752 flags |= RDP_OET_LOW_ALARM;
5753 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS)
5754 flags |= RDP_OET_HIGH_WARNING;
5755 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS)
5756 flags |= RDP_OET_LOW_WARNING;
5758 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT);
5759 desc->oed_info.function_flags = cpu_to_be32(flags);
5760 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5761 return sizeof(struct fc_rdp_oed_sfp_desc);
5765 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba,
5766 struct fc_rdp_oed_sfp_desc *desc,
5771 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5773 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM];
5774 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM];
5775 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING];
5776 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING];
5778 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER)
5779 flags |= RDP_OET_HIGH_ALARM;
5780 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER)
5781 flags |= RDP_OET_LOW_ALARM;
5782 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER)
5783 flags |= RDP_OET_HIGH_WARNING;
5784 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER)
5785 flags |= RDP_OET_LOW_WARNING;
5787 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT);
5788 desc->oed_info.function_flags = cpu_to_be32(flags);
5789 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5790 return sizeof(struct fc_rdp_oed_sfp_desc);
5795 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba,
5796 struct fc_rdp_oed_sfp_desc *desc,
5801 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
5803 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM];
5804 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM];
5805 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING];
5806 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING];
5808 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER)
5809 flags |= RDP_OET_HIGH_ALARM;
5810 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER)
5811 flags |= RDP_OET_LOW_ALARM;
5812 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER)
5813 flags |= RDP_OET_HIGH_WARNING;
5814 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER)
5815 flags |= RDP_OET_LOW_WARNING;
5817 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT);
5818 desc->oed_info.function_flags = cpu_to_be32(flags);
5819 desc->length = cpu_to_be32(sizeof(desc->oed_info));
5820 return sizeof(struct fc_rdp_oed_sfp_desc);
5824 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
5825 uint8_t *page_a0, struct lpfc_vport *vport)
5827 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG);
5828 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16);
5829 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16);
5830 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16);
5831 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 4);
5832 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8);
5833 desc->length = cpu_to_be32(sizeof(desc->opd_info));
5834 return sizeof(struct fc_rdp_opd_sfp_desc);
5838 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
5840 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
5842 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG);
5844 desc->info.CorrectedBlocks =
5845 cpu_to_be32(stat->fecCorrBlkCount);
5846 desc->info.UncorrectableBlocks =
5847 cpu_to_be32(stat->fecUncorrBlkCount);
5849 desc->length = cpu_to_be32(sizeof(desc->info));
5851 return sizeof(struct fc_fec_rdp_desc);
5855 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
5857 uint16_t rdp_cap = 0;
5860 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
5862 switch (phba->fc_linkspeed) {
5863 case LPFC_LINK_SPEED_1GHZ:
5864 rdp_speed = RDP_PS_1GB;
5866 case LPFC_LINK_SPEED_2GHZ:
5867 rdp_speed = RDP_PS_2GB;
5869 case LPFC_LINK_SPEED_4GHZ:
5870 rdp_speed = RDP_PS_4GB;
5872 case LPFC_LINK_SPEED_8GHZ:
5873 rdp_speed = RDP_PS_8GB;
5875 case LPFC_LINK_SPEED_10GHZ:
5876 rdp_speed = RDP_PS_10GB;
5878 case LPFC_LINK_SPEED_16GHZ:
5879 rdp_speed = RDP_PS_16GB;
5881 case LPFC_LINK_SPEED_32GHZ:
5882 rdp_speed = RDP_PS_32GB;
5884 case LPFC_LINK_SPEED_64GHZ:
5885 rdp_speed = RDP_PS_64GB;
5888 rdp_speed = RDP_PS_UNKNOWN;
5892 desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
5894 if (phba->lmt & LMT_128Gb)
5895 rdp_cap |= RDP_PS_128GB;
5896 if (phba->lmt & LMT_64Gb)
5897 rdp_cap |= RDP_PS_64GB;
5898 if (phba->lmt & LMT_32Gb)
5899 rdp_cap |= RDP_PS_32GB;
5900 if (phba->lmt & LMT_16Gb)
5901 rdp_cap |= RDP_PS_16GB;
5902 if (phba->lmt & LMT_10Gb)
5903 rdp_cap |= RDP_PS_10GB;
5904 if (phba->lmt & LMT_8Gb)
5905 rdp_cap |= RDP_PS_8GB;
5906 if (phba->lmt & LMT_4Gb)
5907 rdp_cap |= RDP_PS_4GB;
5908 if (phba->lmt & LMT_2Gb)
5909 rdp_cap |= RDP_PS_2GB;
5910 if (phba->lmt & LMT_1Gb)
5911 rdp_cap |= RDP_PS_1GB;
5914 rdp_cap = RDP_CAP_UNKNOWN;
5915 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO)
5916 rdp_cap |= RDP_CAP_USER_CONFIGURED;
5918 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
5919 desc->length = cpu_to_be32(sizeof(desc->info));
5920 return sizeof(struct fc_rdp_port_speed_desc);
5924 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
5925 struct lpfc_vport *vport)
5928 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
5930 memcpy(desc->port_names.wwnn, &vport->fc_nodename,
5931 sizeof(desc->port_names.wwnn));
5933 memcpy(desc->port_names.wwpn, &vport->fc_portname,
5934 sizeof(desc->port_names.wwpn));
5936 desc->length = cpu_to_be32(sizeof(desc->port_names));
5937 return sizeof(struct fc_rdp_port_name_desc);
5941 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
5942 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5945 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
5946 if (vport->fc_flag & FC_FABRIC) {
5947 memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
5948 sizeof(desc->port_names.wwnn));
5950 memcpy(desc->port_names.wwpn, &vport->fabric_portname,
5951 sizeof(desc->port_names.wwpn));
5952 } else { /* Point to Point */
5953 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
5954 sizeof(desc->port_names.wwnn));
5956 memcpy(desc->port_names.wwpn, &ndlp->nlp_portname,
5957 sizeof(desc->port_names.wwpn));
5960 desc->length = cpu_to_be32(sizeof(desc->port_names));
5961 return sizeof(struct fc_rdp_port_name_desc);
5965 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
5968 struct lpfc_nodelist *ndlp = rdp_context->ndlp;
5969 struct lpfc_vport *vport = ndlp->vport;
5970 struct lpfc_iocbq *elsiocb;
5971 struct ulp_bde64 *bpl;
5974 struct ls_rjt *stat;
5975 struct fc_rdp_res_frame *rdp_res;
5976 uint32_t cmdsize, len;
5980 if (status != SUCCESS)
5983 /* This will change once we know the true size of the RDP payload */
5984 cmdsize = sizeof(struct fc_rdp_res_frame);
5986 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
5987 lpfc_max_els_tries, rdp_context->ndlp,
5988 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
5990 goto free_rdp_context;
5992 icmd = &elsiocb->iocb;
5993 icmd->ulpContext = rdp_context->rx_id;
5994 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
5996 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5997 "2171 Xmit RDP response tag x%x xri x%x, "
5998 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
5999 elsiocb->iotag, elsiocb->iocb.ulpContext,
6000 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6002 rdp_res = (struct fc_rdp_res_frame *)
6003 (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6004 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6005 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
6006 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6008 /* Update Alarm and Warning */
6009 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS);
6010 phba->sfp_alarm |= *flag_ptr;
6011 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS);
6012 phba->sfp_warning |= *flag_ptr;
6014 /* For RDP payload */
6016 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *)
6017 (len + pcmd), ELS_CMD_RDP);
6019 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd),
6020 rdp_context->page_a0, rdp_context->page_a2);
6021 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd),
6023 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *)
6024 (len + pcmd), &rdp_context->link_stat);
6025 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *)
6026 (len + pcmd), vport);
6027 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *)
6028 (len + pcmd), vport, ndlp);
6029 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd),
6030 &rdp_context->link_stat);
6031 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd),
6032 &rdp_context->link_stat, vport);
6033 len += lpfc_rdp_res_oed_temp_desc(phba,
6034 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
6035 rdp_context->page_a2);
6036 len += lpfc_rdp_res_oed_voltage_desc(phba,
6037 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
6038 rdp_context->page_a2);
6039 len += lpfc_rdp_res_oed_txbias_desc(phba,
6040 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
6041 rdp_context->page_a2);
6042 len += lpfc_rdp_res_oed_txpower_desc(phba,
6043 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
6044 rdp_context->page_a2);
6045 len += lpfc_rdp_res_oed_rxpower_desc(phba,
6046 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
6047 rdp_context->page_a2);
6048 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd),
6049 rdp_context->page_a0, vport);
6051 rdp_res->length = cpu_to_be32(len - 8);
6052 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6054 /* Now that we know the true size of the payload, update the BPL */
6055 bpl = (struct ulp_bde64 *)
6056 (((struct lpfc_dmabuf *)(elsiocb->context3))->virt);
6057 bpl->tus.f.bdeSize = len;
6058 bpl->tus.f.bdeFlags = 0;
6059 bpl->tus.w = le32_to_cpu(bpl->tus.w);
6061 phba->fc_stat.elsXmitACC++;
6062 elsiocb->context1 = lpfc_nlp_get(ndlp);
6063 if (!elsiocb->context1) {
6064 lpfc_els_free_iocb(phba, elsiocb);
6065 goto free_rdp_context;
6068 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6069 if (rc == IOCB_ERROR) {
6071 lpfc_els_free_iocb(phba, elsiocb);
6074 goto free_rdp_context;
6077 cmdsize = 2 * sizeof(uint32_t);
6078 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
6079 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
6081 goto free_rdp_context;
6083 icmd = &elsiocb->iocb;
6084 icmd->ulpContext = rdp_context->rx_id;
6085 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
6086 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6088 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
6089 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
6090 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6092 phba->fc_stat.elsXmitLSRJT++;
6093 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6094 elsiocb->context1 = lpfc_nlp_get(ndlp);
6095 if (!elsiocb->context1) {
6096 lpfc_els_free_iocb(phba, elsiocb);
6097 goto free_rdp_context;
6100 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6101 if (rc == IOCB_ERROR) {
6103 lpfc_els_free_iocb(phba, elsiocb);
6107 /* This reference put is for the original unsolicited RDP. If the
6108 * iocb prep failed, there is no reference to remove.
6115 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
6117 LPFC_MBOXQ_t *mbox = NULL;
6120 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6122 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
6123 "7105 failed to allocate mailbox memory");
6127 if (lpfc_sli4_dump_page_a0(phba, mbox))
6128 goto prep_mbox_fail;
6129 mbox->vport = rdp_context->ndlp->vport;
6130 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
6131 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context;
6132 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6133 if (rc == MBX_NOT_FINISHED)
6134 goto issue_mbox_fail;
6140 mempool_free(mbox, phba->mbox_mem_pool);
6145 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
6146 * @vport: pointer to a host virtual N_Port data structure.
6147 * @cmdiocb: pointer to lpfc command iocb data structure.
6148 * @ndlp: pointer to a node-list data structure.
6150 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
6151 * IOCB. First, the payload of the unsolicited RDP is checked.
6152 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
6153 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
6154 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
6155 * gather all data and send RDP response.
6158 * 0 - Sent the acc response
6159 * 1 - Sent the reject response.
6162 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6163 struct lpfc_nodelist *ndlp)
6165 struct lpfc_hba *phba = vport->phba;
6166 struct lpfc_dmabuf *pcmd;
6167 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
6168 struct fc_rdp_req_frame *rdp_req;
6169 struct lpfc_rdp_context *rdp_context;
6173 if (phba->sli_rev < LPFC_SLI_REV4 ||
6174 bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
6175 LPFC_SLI_INTF_IF_TYPE_2) {
6176 rjt_err = LSRJT_UNABLE_TPC;
6177 rjt_expl = LSEXP_REQ_UNSUPPORTED;
6181 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
6182 rjt_err = LSRJT_UNABLE_TPC;
6183 rjt_expl = LSEXP_REQ_UNSUPPORTED;
6187 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6188 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
6190 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6191 "2422 ELS RDP Request "
6192 "dec len %d tag x%x port_id %d len %d\n",
6193 be32_to_cpu(rdp_req->rdp_des_length),
6194 be32_to_cpu(rdp_req->nport_id_desc.tag),
6195 be32_to_cpu(rdp_req->nport_id_desc.nport_id),
6196 be32_to_cpu(rdp_req->nport_id_desc.length));
6198 if (sizeof(struct fc_rdp_nport_desc) !=
6199 be32_to_cpu(rdp_req->rdp_des_length))
6201 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
6203 if (RDP_NPORT_ID_SIZE !=
6204 be32_to_cpu(rdp_req->nport_id_desc.length))
6206 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
6208 rjt_err = LSRJT_UNABLE_TPC;
6212 cmd = &cmdiocb->iocb;
6213 rdp_context->ndlp = lpfc_nlp_get(ndlp);
6214 if (!rdp_context->ndlp) {
6216 rjt_err = LSRJT_UNABLE_TPC;
6219 rdp_context->ox_id = cmd->unsli3.rcvsli3.ox_id;
6220 rdp_context->rx_id = cmd->ulpContext;
6221 rdp_context->cmpl = lpfc_els_rdp_cmpl;
6222 if (lpfc_get_rdp_info(phba, rdp_context)) {
6223 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
6224 "2423 Unable to send mailbox");
6226 rjt_err = LSRJT_UNABLE_TPC;
6234 rjt_err = LSRJT_LOGICAL_ERR;
6237 memset(&stat, 0, sizeof(stat));
6238 stat.un.b.lsRjtRsnCode = rjt_err;
6239 stat.un.b.lsRjtRsnCodeExp = rjt_expl;
6240 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6246 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6251 struct lpfc_iocbq *elsiocb;
6252 struct lpfc_nodelist *ndlp;
6253 struct ls_rjt *stat;
6254 union lpfc_sli4_cfg_shdr *shdr;
6255 struct lpfc_lcb_context *lcb_context;
6256 struct fc_lcb_res_frame *lcb_res;
6257 uint32_t cmdsize, shdr_status, shdr_add_status;
6261 lcb_context = (struct lpfc_lcb_context *)pmb->ctx_ndlp;
6262 ndlp = lcb_context->ndlp;
6263 pmb->ctx_ndlp = NULL;
6264 pmb->ctx_buf = NULL;
6266 shdr = (union lpfc_sli4_cfg_shdr *)
6267 &pmb->u.mqe.un.beacon_config.header.cfg_shdr;
6268 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6269 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6271 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
6272 "0194 SET_BEACON_CONFIG mailbox "
6273 "completed with status x%x add_status x%x,"
6274 " mbx status x%x\n",
6275 shdr_status, shdr_add_status, mb->mbxStatus);
6277 if ((mb->mbxStatus != MBX_SUCCESS) || shdr_status ||
6278 (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) ||
6279 (shdr_add_status == ADD_STATUS_INVALID_REQUEST)) {
6280 mempool_free(pmb, phba->mbox_mem_pool);
6284 mempool_free(pmb, phba->mbox_mem_pool);
6285 cmdsize = sizeof(struct fc_lcb_res_frame);
6286 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6287 lpfc_max_els_tries, ndlp,
6288 ndlp->nlp_DID, ELS_CMD_ACC);
6290 /* Decrement the ndlp reference count from previous mbox command */
6294 goto free_lcb_context;
6296 lcb_res = (struct fc_lcb_res_frame *)
6297 (((struct lpfc_dmabuf *)elsiocb->context2)->virt);
6299 memset(lcb_res, 0, sizeof(struct fc_lcb_res_frame));
6300 icmd = &elsiocb->iocb;
6301 icmd->ulpContext = lcb_context->rx_id;
6302 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
6304 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
6305 *((uint32_t *)(pcmd)) = ELS_CMD_ACC;
6306 lcb_res->lcb_sub_command = lcb_context->sub_command;
6307 lcb_res->lcb_type = lcb_context->type;
6308 lcb_res->capability = lcb_context->capability;
6309 lcb_res->lcb_frequency = lcb_context->frequency;
6310 lcb_res->lcb_duration = lcb_context->duration;
6311 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6312 phba->fc_stat.elsXmitACC++;
6314 elsiocb->context1 = lpfc_nlp_get(ndlp);
6315 if (!elsiocb->context1)
6318 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6324 lpfc_els_free_iocb(phba, elsiocb);
6330 cmdsize = sizeof(struct fc_lcb_res_frame);
6331 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6332 lpfc_max_els_tries, ndlp,
6333 ndlp->nlp_DID, ELS_CMD_LS_RJT);
6336 goto free_lcb_context;
6338 icmd = &elsiocb->iocb;
6339 icmd->ulpContext = lcb_context->rx_id;
6340 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
6341 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
6343 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
6344 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
6345 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6347 if (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)
6348 stat->un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
6350 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6351 phba->fc_stat.elsXmitLSRJT++;
6352 elsiocb->context1 = lpfc_nlp_get(ndlp);
6353 if (!elsiocb->context1) {
6354 lpfc_els_free_iocb(phba, elsiocb);
6355 goto free_lcb_context;
6358 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6359 if (rc == IOCB_ERROR) {
6361 lpfc_els_free_iocb(phba, elsiocb);
6368 lpfc_sli4_set_beacon(struct lpfc_vport *vport,
6369 struct lpfc_lcb_context *lcb_context,
6370 uint32_t beacon_state)
6372 struct lpfc_hba *phba = vport->phba;
6373 union lpfc_sli4_cfg_shdr *cfg_shdr;
6374 LPFC_MBOXQ_t *mbox = NULL;
6378 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6382 cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
6383 len = sizeof(struct lpfc_mbx_set_beacon_config) -
6384 sizeof(struct lpfc_sli4_cfg_mhdr);
6385 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6386 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
6387 LPFC_SLI4_MBX_EMBED);
6388 mbox->ctx_ndlp = (void *)lcb_context;
6389 mbox->vport = phba->pport;
6390 mbox->mbox_cmpl = lpfc_els_lcb_rsp;
6391 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
6392 phba->sli4_hba.physical_port);
6393 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
6395 mbox->u.mqe.un.beacon_config.word5 = 0; /* Reserved */
6398 * Check bv1s bit before issuing the mailbox
6399 * if bv1s == 1, LCB V1 supported
6400 * else, LCB V0 supported
6403 if (phba->sli4_hba.pc_sli4_params.bv1s) {
6404 /* COMMON_SET_BEACON_CONFIG_V1 */
6405 cfg_shdr->request.word9 = BEACON_VERSION_V1;
6406 lcb_context->capability |= LCB_CAPABILITY_DURATION;
6407 bf_set(lpfc_mbx_set_beacon_port_type,
6408 &mbox->u.mqe.un.beacon_config, 0);
6409 bf_set(lpfc_mbx_set_beacon_duration_v1,
6410 &mbox->u.mqe.un.beacon_config,
6411 be16_to_cpu(lcb_context->duration));
6413 /* COMMON_SET_BEACON_CONFIG_V0 */
6414 if (be16_to_cpu(lcb_context->duration) != 0) {
6415 mempool_free(mbox, phba->mbox_mem_pool);
6418 cfg_shdr->request.word9 = BEACON_VERSION_V0;
6419 lcb_context->capability &= ~(LCB_CAPABILITY_DURATION);
6420 bf_set(lpfc_mbx_set_beacon_state,
6421 &mbox->u.mqe.un.beacon_config, beacon_state);
6422 bf_set(lpfc_mbx_set_beacon_port_type,
6423 &mbox->u.mqe.un.beacon_config, 1);
6424 bf_set(lpfc_mbx_set_beacon_duration,
6425 &mbox->u.mqe.un.beacon_config,
6426 be16_to_cpu(lcb_context->duration));
6429 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6430 if (rc == MBX_NOT_FINISHED) {
6431 mempool_free(mbox, phba->mbox_mem_pool);
6440 * lpfc_els_rcv_lcb - Process an unsolicited LCB
6441 * @vport: pointer to a host virtual N_Port data structure.
6442 * @cmdiocb: pointer to lpfc command iocb data structure.
6443 * @ndlp: pointer to a node-list data structure.
6445 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
6446 * First, the payload of the unsolicited LCB is checked.
6447 * Then based on Subcommand beacon will either turn on or off.
6450 * 0 - Sent the acc response
6451 * 1 - Sent the reject response.
6454 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6455 struct lpfc_nodelist *ndlp)
6457 struct lpfc_hba *phba = vport->phba;
6458 struct lpfc_dmabuf *pcmd;
6460 struct fc_lcb_request_frame *beacon;
6461 struct lpfc_lcb_context *lcb_context;
6462 u8 state, rjt_err = 0;
6465 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
6466 lp = (uint8_t *)pcmd->virt;
6467 beacon = (struct fc_lcb_request_frame *)pcmd->virt;
6469 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6470 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
6471 "type x%x frequency %x duration x%x\n",
6472 lp[0], lp[1], lp[2],
6473 beacon->lcb_command,
6474 beacon->lcb_sub_command,
6476 beacon->lcb_frequency,
6477 be16_to_cpu(beacon->lcb_duration));
6479 if (beacon->lcb_sub_command != LPFC_LCB_ON &&
6480 beacon->lcb_sub_command != LPFC_LCB_OFF) {
6481 rjt_err = LSRJT_CMD_UNSUPPORTED;
6485 if (phba->sli_rev < LPFC_SLI_REV4 ||
6486 phba->hba_flag & HBA_FCOE_MODE ||
6487 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
6488 LPFC_SLI_INTF_IF_TYPE_2)) {
6489 rjt_err = LSRJT_CMD_UNSUPPORTED;
6493 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL);
6495 rjt_err = LSRJT_UNABLE_TPC;
6499 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
6500 lcb_context->sub_command = beacon->lcb_sub_command;
6501 lcb_context->capability = 0;
6502 lcb_context->type = beacon->lcb_type;
6503 lcb_context->frequency = beacon->lcb_frequency;
6504 lcb_context->duration = beacon->lcb_duration;
6505 lcb_context->ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
6506 lcb_context->rx_id = cmdiocb->iocb.ulpContext;
6507 lcb_context->ndlp = lpfc_nlp_get(ndlp);
6508 if (!lcb_context->ndlp) {
6509 rjt_err = LSRJT_UNABLE_TPC;
6513 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
6514 lpfc_printf_vlog(ndlp->vport, KERN_ERR, LOG_TRACE_EVENT,
6515 "0193 failed to send mail box");
6518 rjt_err = LSRJT_UNABLE_TPC;
6523 memset(&stat, 0, sizeof(stat));
6524 stat.un.b.lsRjtRsnCode = rjt_err;
6525 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6531 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
6532 * @vport: pointer to a host virtual N_Port data structure.
6534 * This routine cleans up any Registration State Change Notification
6535 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
6536 * @vport together with the host_lock is used to prevent multiple thread
6537 * trying to access the RSCN array on a same @vport at the same time.
6540 lpfc_els_flush_rscn(struct lpfc_vport *vport)
6542 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6543 struct lpfc_hba *phba = vport->phba;
6546 spin_lock_irq(shost->host_lock);
6547 if (vport->fc_rscn_flush) {
6548 /* Another thread is walking fc_rscn_id_list on this vport */
6549 spin_unlock_irq(shost->host_lock);
6552 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
6553 vport->fc_rscn_flush = 1;
6554 spin_unlock_irq(shost->host_lock);
6556 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
6557 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
6558 vport->fc_rscn_id_list[i] = NULL;
6560 spin_lock_irq(shost->host_lock);
6561 vport->fc_rscn_id_cnt = 0;
6562 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
6563 spin_unlock_irq(shost->host_lock);
6564 lpfc_can_disctmo(vport);
6565 /* Indicate we are done walking this fc_rscn_id_list */
6566 vport->fc_rscn_flush = 0;
6570 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
6571 * @vport: pointer to a host virtual N_Port data structure.
6572 * @did: remote destination port identifier.
6574 * This routine checks whether there is any pending Registration State
6575 * Configuration Notification (RSCN) to a @did on @vport.
6578 * None zero - The @did matched with a pending rscn
6579 * 0 - not able to match @did with a pending rscn
6582 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
6587 uint32_t payload_len, i;
6588 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6590 ns_did.un.word = did;
6592 /* Never match fabric nodes for RSCNs */
6593 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
6596 /* If we are doing a FULL RSCN rediscovery, match everything */
6597 if (vport->fc_flag & FC_RSCN_DISCOVERY)
6600 spin_lock_irq(shost->host_lock);
6601 if (vport->fc_rscn_flush) {
6602 /* Another thread is walking fc_rscn_id_list on this vport */
6603 spin_unlock_irq(shost->host_lock);
6606 /* Indicate we are walking fc_rscn_id_list on this vport */
6607 vport->fc_rscn_flush = 1;
6608 spin_unlock_irq(shost->host_lock);
6609 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
6610 lp = vport->fc_rscn_id_list[i]->virt;
6611 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
6612 payload_len -= sizeof(uint32_t); /* take off word 0 */
6613 while (payload_len) {
6614 rscn_did.un.word = be32_to_cpu(*lp++);
6615 payload_len -= sizeof(uint32_t);
6616 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
6617 case RSCN_ADDRESS_FORMAT_PORT:
6618 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
6619 && (ns_did.un.b.area == rscn_did.un.b.area)
6620 && (ns_did.un.b.id == rscn_did.un.b.id))
6621 goto return_did_out;
6623 case RSCN_ADDRESS_FORMAT_AREA:
6624 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
6625 && (ns_did.un.b.area == rscn_did.un.b.area))
6626 goto return_did_out;
6628 case RSCN_ADDRESS_FORMAT_DOMAIN:
6629 if (ns_did.un.b.domain == rscn_did.un.b.domain)
6630 goto return_did_out;
6632 case RSCN_ADDRESS_FORMAT_FABRIC:
6633 goto return_did_out;
6637 /* Indicate we are done with walking fc_rscn_id_list on this vport */
6638 vport->fc_rscn_flush = 0;
6641 /* Indicate we are done with walking fc_rscn_id_list on this vport */
6642 vport->fc_rscn_flush = 0;
6647 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
6648 * @vport: pointer to a host virtual N_Port data structure.
6650 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
6651 * state machine for a @vport's nodes that are with pending RSCN (Registration
6652 * State Change Notification).
6655 * 0 - Successful (currently alway return 0)
6658 lpfc_rscn_recovery_check(struct lpfc_vport *vport)
6660 struct lpfc_nodelist *ndlp = NULL;
6662 /* Move all affected nodes by pending RSCNs to NPR state. */
6663 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
6664 if ((ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
6665 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
6668 /* NVME Target mode does not do RSCN Recovery. */
6669 if (vport->phba->nvmet_support)
6672 /* If we are in the process of doing discovery on this
6673 * NPort, let it continue on its own.
6675 switch (ndlp->nlp_state) {
6676 case NLP_STE_PLOGI_ISSUE:
6677 case NLP_STE_ADISC_ISSUE:
6678 case NLP_STE_REG_LOGIN_ISSUE:
6679 case NLP_STE_PRLI_ISSUE:
6680 case NLP_STE_LOGO_ISSUE:
6684 /* Check to see if we need to NVME rescan this target
6687 if (ndlp->nlp_fc4_type & NLP_FC4_NVME &&
6688 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY))
6689 lpfc_nvme_rescan_port(vport, ndlp);
6691 lpfc_disc_state_machine(vport, ndlp, NULL,
6692 NLP_EVT_DEVICE_RECOVERY);
6693 lpfc_cancel_retry_delay_tmo(vport, ndlp);
6699 * lpfc_send_rscn_event - Send an RSCN event to management application
6700 * @vport: pointer to a host virtual N_Port data structure.
6701 * @cmdiocb: pointer to lpfc command iocb data structure.
6703 * lpfc_send_rscn_event sends an RSCN netlink event to management
6707 lpfc_send_rscn_event(struct lpfc_vport *vport,
6708 struct lpfc_iocbq *cmdiocb)
6710 struct lpfc_dmabuf *pcmd;
6711 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6712 uint32_t *payload_ptr;
6713 uint32_t payload_len;
6714 struct lpfc_rscn_event_header *rscn_event_data;
6716 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6717 payload_ptr = (uint32_t *) pcmd->virt;
6718 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
6720 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
6721 payload_len, GFP_KERNEL);
6722 if (!rscn_event_data) {
6723 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
6724 "0147 Failed to allocate memory for RSCN event\n");
6727 rscn_event_data->event_type = FC_REG_RSCN_EVENT;
6728 rscn_event_data->payload_length = payload_len;
6729 memcpy(rscn_event_data->rscn_payload, payload_ptr,
6732 fc_host_post_vendor_event(shost,
6733 fc_get_event_number(),
6734 sizeof(struct lpfc_rscn_event_header) + payload_len,
6735 (char *)rscn_event_data,
6738 kfree(rscn_event_data);
6742 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
6743 * @vport: pointer to a host virtual N_Port data structure.
6744 * @cmdiocb: pointer to lpfc command iocb data structure.
6745 * @ndlp: pointer to a node-list data structure.
6747 * This routine processes an unsolicited RSCN (Registration State Change
6748 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
6749 * to invoke fc_host_post_event() routine to the FC transport layer. If the
6750 * discover state machine is about to begin discovery, it just accepts the
6751 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
6752 * contains N_Port IDs for other vports on this HBA, it just accepts the
6753 * RSCN and ignore processing it. If the state machine is in the recovery
6754 * state, the fc_rscn_id_list of this @vport is walked and the
6755 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
6756 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
6757 * routine is invoked to handle the RSCN event.
6760 * 0 - Just sent the acc response
6761 * 1 - Sent the acc response and waited for name server completion
6764 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6765 struct lpfc_nodelist *ndlp)
6767 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6768 struct lpfc_hba *phba = vport->phba;
6769 struct lpfc_dmabuf *pcmd;
6770 uint32_t *lp, *datap;
6771 uint32_t payload_len, length, nportid, *cmd;
6773 int rscn_id = 0, hba_id = 0;
6776 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6777 lp = (uint32_t *) pcmd->virt;
6779 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
6780 payload_len -= sizeof(uint32_t); /* take off word 0 */
6782 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6783 "0214 RSCN received Data: x%x x%x x%x x%x\n",
6784 vport->fc_flag, payload_len, *lp,
6785 vport->fc_rscn_id_cnt);
6787 /* Send an RSCN event to the management application */
6788 lpfc_send_rscn_event(vport, cmdiocb);
6790 for (i = 0; i < payload_len/sizeof(uint32_t); i++)
6791 fc_host_post_event(shost, fc_get_event_number(),
6792 FCH_EVT_RSCN, lp[i]);
6794 /* Check if RSCN is coming from a direct-connected remote NPort */
6795 if (vport->fc_flag & FC_PT2PT) {
6796 /* If so, just ACC it, no other action needed for now */
6797 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6798 "2024 pt2pt RSCN %08x Data: x%x x%x\n",
6799 *lp, vport->fc_flag, payload_len);
6800 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6802 /* Check to see if we need to NVME rescan this target
6805 if (ndlp->nlp_fc4_type & NLP_FC4_NVME &&
6806 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY))
6807 lpfc_nvme_rescan_port(vport, ndlp);
6811 /* If we are about to begin discovery, just ACC the RSCN.
6812 * Discovery processing will satisfy it.
6814 if (vport->port_state <= LPFC_NS_QRY) {
6815 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6816 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
6817 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
6819 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6823 /* If this RSCN just contains NPortIDs for other vports on this HBA,
6824 * just ACC and ignore it.
6826 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
6827 !(vport->cfg_peer_port_login)) {
6832 nportid = ((be32_to_cpu(nportid)) & Mask_DID);
6833 i -= sizeof(uint32_t);
6835 if (lpfc_find_vport_by_did(phba, nportid))
6838 if (rscn_id == hba_id) {
6839 /* ALL NPortIDs in RSCN are on HBA */
6840 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6842 "Data: x%x x%x x%x x%x\n",
6843 vport->fc_flag, payload_len,
6844 *lp, vport->fc_rscn_id_cnt);
6845 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6846 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
6847 ndlp->nlp_DID, vport->port_state,
6850 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
6856 spin_lock_irq(shost->host_lock);
6857 if (vport->fc_rscn_flush) {
6858 /* Another thread is walking fc_rscn_id_list on this vport */
6859 vport->fc_flag |= FC_RSCN_DISCOVERY;
6860 spin_unlock_irq(shost->host_lock);
6862 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6865 /* Indicate we are walking fc_rscn_id_list on this vport */
6866 vport->fc_rscn_flush = 1;
6867 spin_unlock_irq(shost->host_lock);
6868 /* Get the array count after successfully have the token */
6869 rscn_cnt = vport->fc_rscn_id_cnt;
6870 /* If we are already processing an RSCN, save the received
6871 * RSCN payload buffer, cmdiocb->context2 to process later.
6873 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
6874 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6875 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
6876 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
6878 spin_lock_irq(shost->host_lock);
6879 vport->fc_flag |= FC_RSCN_DEFERRED;
6881 /* Restart disctmo if its already running */
6882 if (vport->fc_flag & FC_DISC_TMO) {
6883 tmo = ((phba->fc_ratov * 3) + 3);
6884 mod_timer(&vport->fc_disctmo,
6885 jiffies + msecs_to_jiffies(1000 * tmo));
6887 if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
6888 !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
6889 vport->fc_flag |= FC_RSCN_MODE;
6890 spin_unlock_irq(shost->host_lock);
6892 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
6893 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
6896 (payload_len + length <= LPFC_BPL_SIZE)) {
6897 *cmd &= ELS_CMD_MASK;
6898 *cmd |= cpu_to_be32(payload_len + length);
6899 memcpy(((uint8_t *)cmd) + length, lp,
6902 vport->fc_rscn_id_list[rscn_cnt] = pcmd;
6903 vport->fc_rscn_id_cnt++;
6904 /* If we zero, cmdiocb->context2, the calling
6905 * routine will not try to free it.
6907 cmdiocb->context2 = NULL;
6910 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6911 "0235 Deferred RSCN "
6912 "Data: x%x x%x x%x\n",
6913 vport->fc_rscn_id_cnt, vport->fc_flag,
6916 vport->fc_flag |= FC_RSCN_DISCOVERY;
6917 spin_unlock_irq(shost->host_lock);
6918 /* ReDiscovery RSCN */
6919 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6920 "0234 ReDiscovery RSCN "
6921 "Data: x%x x%x x%x\n",
6922 vport->fc_rscn_id_cnt, vport->fc_flag,
6925 /* Indicate we are done walking fc_rscn_id_list on this vport */
6926 vport->fc_rscn_flush = 0;
6928 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6929 /* send RECOVERY event for ALL nodes that match RSCN payload */
6930 lpfc_rscn_recovery_check(vport);
6933 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
6934 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
6935 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
6937 spin_lock_irq(shost->host_lock);
6938 vport->fc_flag |= FC_RSCN_MODE;
6939 spin_unlock_irq(shost->host_lock);
6940 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
6941 /* Indicate we are done walking fc_rscn_id_list on this vport */
6942 vport->fc_rscn_flush = 0;
6944 * If we zero, cmdiocb->context2, the calling routine will
6945 * not try to free it.
6947 cmdiocb->context2 = NULL;
6948 lpfc_set_disctmo(vport);
6950 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6951 /* send RECOVERY event for ALL nodes that match RSCN payload */
6952 lpfc_rscn_recovery_check(vport);
6953 return lpfc_els_handle_rscn(vport);
6957 * lpfc_els_handle_rscn - Handle rscn for a vport
6958 * @vport: pointer to a host virtual N_Port data structure.
6960 * This routine handles the Registration State Configuration Notification
6961 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
6962 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
6963 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
6964 * NameServer shall be issued. If CT command to the NameServer fails to be
6965 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
6966 * RSCN activities with the @vport.
6969 * 0 - Cleaned up rscn on the @vport
6970 * 1 - Wait for plogi to name server before proceed
6973 lpfc_els_handle_rscn(struct lpfc_vport *vport)
6975 struct lpfc_nodelist *ndlp;
6976 struct lpfc_hba *phba = vport->phba;
6978 /* Ignore RSCN if the port is being torn down. */
6979 if (vport->load_flag & FC_UNLOADING) {
6980 lpfc_els_flush_rscn(vport);
6984 /* Start timer for RSCN processing */
6985 lpfc_set_disctmo(vport);
6987 /* RSCN processed */
6988 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6989 "0215 RSCN processed Data: x%x x%x x%x x%x x%x x%x\n",
6990 vport->fc_flag, 0, vport->fc_rscn_id_cnt,
6991 vport->port_state, vport->num_disc_nodes,
6994 /* To process RSCN, first compare RSCN data with NameServer */
6995 vport->fc_ns_retry = 0;
6996 vport->num_disc_nodes = 0;
6998 ndlp = lpfc_findnode_did(vport, NameServer_DID);
6999 if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
7000 /* Good ndlp, issue CT Request to NameServer. Need to
7001 * know how many gidfts were issued. If none, then just
7002 * flush the RSCN. Otherwise, the outstanding requests
7005 if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT) {
7006 if (lpfc_issue_gidft(vport) > 0)
7008 } else if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_PT) {
7009 if (lpfc_issue_gidpt(vport) > 0)
7015 /* Nameserver login in question. Revalidate. */
7017 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
7018 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
7020 ndlp = lpfc_nlp_init(vport, NameServer_DID);
7022 lpfc_els_flush_rscn(vport);
7025 ndlp->nlp_prev_state = ndlp->nlp_state;
7026 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
7028 ndlp->nlp_type |= NLP_FABRIC;
7029 lpfc_issue_els_plogi(vport, NameServer_DID, 0);
7030 /* Wait for NameServer login cmpl before we can
7036 lpfc_els_flush_rscn(vport);
7041 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
7042 * @vport: pointer to a host virtual N_Port data structure.
7043 * @cmdiocb: pointer to lpfc command iocb data structure.
7044 * @ndlp: pointer to a node-list data structure.
7046 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
7047 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
7048 * point topology. As an unsolicited FLOGI should not be received in a loop
7049 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
7050 * lpfc_check_sparm() routine is invoked to check the parameters in the
7051 * unsolicited FLOGI. If parameters validation failed, the routine
7052 * lpfc_els_rsp_reject() shall be called with reject reason code set to
7053 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
7054 * FLOGI shall be compared with the Port WWN of the @vport to determine who
7055 * will initiate PLOGI. The higher lexicographical value party shall has
7056 * higher priority (as the winning port) and will initiate PLOGI and
7057 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
7058 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
7059 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
7062 * 0 - Successfully processed the unsolicited flogi
7063 * 1 - Failed to process the unsolicited flogi
7066 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7067 struct lpfc_nodelist *ndlp)
7069 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7070 struct lpfc_hba *phba = vport->phba;
7071 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7072 uint32_t *lp = (uint32_t *) pcmd->virt;
7073 IOCB_t *icmd = &cmdiocb->iocb;
7074 struct serv_parm *sp;
7078 uint32_t fc_flag = 0;
7079 uint32_t port_state = 0;
7082 sp = (struct serv_parm *) lp;
7084 /* FLOGI received */
7086 lpfc_set_disctmo(vport);
7088 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
7089 /* We should never receive a FLOGI in loop mode, ignore it */
7090 did = icmd->un.elsreq64.remoteID;
7092 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
7094 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
7095 "0113 An FLOGI ELS command x%x was "
7096 "received from DID x%x in Loop Mode\n",
7101 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
7104 * If our portname is greater than the remote portname,
7105 * then we initiate Nport login.
7108 rc = memcmp(&vport->fc_portname, &sp->portName,
7109 sizeof(struct lpfc_name));
7112 if (phba->sli_rev < LPFC_SLI_REV4) {
7113 mbox = mempool_alloc(phba->mbox_mem_pool,
7117 lpfc_linkdown(phba);
7118 lpfc_init_link(phba, mbox,
7120 phba->cfg_link_speed);
7121 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
7122 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
7123 mbox->vport = vport;
7124 rc = lpfc_sli_issue_mbox(phba, mbox,
7126 lpfc_set_loopback_flag(phba);
7127 if (rc == MBX_NOT_FINISHED)
7128 mempool_free(mbox, phba->mbox_mem_pool);
7132 /* abort the flogi coming back to ourselves
7133 * due to external loopback on the port.
7135 lpfc_els_abort_flogi(phba);
7138 } else if (rc > 0) { /* greater than */
7139 spin_lock_irq(shost->host_lock);
7140 vport->fc_flag |= FC_PT2PT_PLOGI;
7141 spin_unlock_irq(shost->host_lock);
7143 /* If we have the high WWPN we can assign our own
7144 * myDID; otherwise, we have to WAIT for a PLOGI
7145 * from the remote NPort to find out what it
7148 vport->fc_myDID = PT2PT_LocalID;
7150 vport->fc_myDID = PT2PT_RemoteID;
7154 * The vport state should go to LPFC_FLOGI only
7155 * AFTER we issue a FLOGI, not receive one.
7157 spin_lock_irq(shost->host_lock);
7158 fc_flag = vport->fc_flag;
7159 port_state = vport->port_state;
7160 vport->fc_flag |= FC_PT2PT;
7161 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
7163 /* Acking an unsol FLOGI. Count 1 for link bounce
7166 vport->rcv_flogi_cnt++;
7167 spin_unlock_irq(shost->host_lock);
7168 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7169 "3311 Rcv Flogi PS x%x new PS x%x "
7170 "fc_flag x%x new fc_flag x%x\n",
7171 port_state, vport->port_state,
7172 fc_flag, vport->fc_flag);
7175 * We temporarily set fc_myDID to make it look like we are
7176 * a Fabric. This is done just so we end up with the right
7177 * did / sid on the FLOGI ACC rsp.
7179 did = vport->fc_myDID;
7180 vport->fc_myDID = Fabric_DID;
7182 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
7184 /* Defer ACC response until AFTER we issue a FLOGI */
7185 if (!(phba->hba_flag & HBA_FLOGI_ISSUED)) {
7186 phba->defer_flogi_acc_rx_id = cmdiocb->iocb.ulpContext;
7187 phba->defer_flogi_acc_ox_id =
7188 cmdiocb->iocb.unsli3.rcvsli3.ox_id;
7190 vport->fc_myDID = did;
7192 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7193 "3344 Deferring FLOGI ACC: rx_id: x%x,"
7194 " ox_id: x%x, hba_flag x%x\n",
7195 phba->defer_flogi_acc_rx_id,
7196 phba->defer_flogi_acc_ox_id, phba->hba_flag);
7198 phba->defer_flogi_acc_flag = true;
7204 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
7206 /* Now lets put fc_myDID back to what its supposed to be */
7207 vport->fc_myDID = did;
7213 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
7214 * @vport: pointer to a host virtual N_Port data structure.
7215 * @cmdiocb: pointer to lpfc command iocb data structure.
7216 * @ndlp: pointer to a node-list data structure.
7218 * This routine processes Request Node Identification Data (RNID) IOCB
7219 * received as an ELS unsolicited event. Only when the RNID specified format
7220 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
7221 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
7222 * Accept (ACC) the RNID ELS command. All the other RNID formats are
7223 * rejected by invoking the lpfc_els_rsp_reject() routine.
7226 * 0 - Successfully processed rnid iocb (currently always return 0)
7229 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7230 struct lpfc_nodelist *ndlp)
7232 struct lpfc_dmabuf *pcmd;
7237 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7238 lp = (uint32_t *) pcmd->virt;
7245 switch (rn->Format) {
7247 case RNID_TOPOLOGY_DISC:
7249 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
7252 /* Reject this request because format not supported */
7253 stat.un.b.lsRjtRsvd0 = 0;
7254 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7255 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
7256 stat.un.b.vendorUnique = 0;
7257 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
7264 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
7265 * @vport: pointer to a host virtual N_Port data structure.
7266 * @cmdiocb: pointer to lpfc command iocb data structure.
7267 * @ndlp: pointer to a node-list data structure.
7270 * 0 - Successfully processed echo iocb (currently always return 0)
7273 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7274 struct lpfc_nodelist *ndlp)
7278 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
7280 /* skip over first word of echo command to find echo data */
7281 pcmd += sizeof(uint32_t);
7283 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
7288 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
7289 * @vport: pointer to a host virtual N_Port data structure.
7290 * @cmdiocb: pointer to lpfc command iocb data structure.
7291 * @ndlp: pointer to a node-list data structure.
7293 * This routine processes a Link Incident Report Registration(LIRR) IOCB
7294 * received as an ELS unsolicited event. Currently, this function just invokes
7295 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
7298 * 0 - Successfully processed lirr iocb (currently always return 0)
7301 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7302 struct lpfc_nodelist *ndlp)
7306 /* For now, unconditionally reject this command */
7307 stat.un.b.lsRjtRsvd0 = 0;
7308 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7309 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
7310 stat.un.b.vendorUnique = 0;
7311 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
7316 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
7317 * @vport: pointer to a host virtual N_Port data structure.
7318 * @cmdiocb: pointer to lpfc command iocb data structure.
7319 * @ndlp: pointer to a node-list data structure.
7321 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
7322 * received as an ELS unsolicited event. A request to RRQ shall only
7323 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
7324 * Nx_Port N_Port_ID of the target Exchange is the same as the
7325 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
7326 * not accepted, an LS_RJT with reason code "Unable to perform
7327 * command request" and reason code explanation "Invalid Originator
7328 * S_ID" shall be returned. For now, we just unconditionally accept
7329 * RRQ from the target.
7332 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7333 struct lpfc_nodelist *ndlp)
7335 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
7336 if (vport->phba->sli_rev == LPFC_SLI_REV4)
7337 lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
7341 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
7342 * @phba: pointer to lpfc hba data structure.
7343 * @pmb: pointer to the driver internal queue element for mailbox command.
7345 * This routine is the completion callback function for the MBX_READ_LNK_STAT
7346 * mailbox command. This callback function is to actually send the Accept
7347 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
7348 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
7349 * mailbox command, constructs the RPS response with the link statistics
7350 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
7351 * response to the RPS.
7353 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7354 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7355 * will be stored into the context1 field of the IOCB for the completion
7356 * callback function to the RPS Accept Response ELS IOCB command.
7360 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
7365 struct RLS_RSP *rls_rsp;
7367 struct lpfc_iocbq *elsiocb;
7368 struct lpfc_nodelist *ndlp;
7375 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
7376 rxid = (uint16_t)((unsigned long)(pmb->ctx_buf) & 0xffff);
7377 oxid = (uint16_t)(((unsigned long)(pmb->ctx_buf) >> 16) & 0xffff);
7378 pmb->ctx_buf = NULL;
7379 pmb->ctx_ndlp = NULL;
7381 if (mb->mbxStatus) {
7382 mempool_free(pmb, phba->mbox_mem_pool);
7386 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
7387 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
7388 lpfc_max_els_tries, ndlp,
7389 ndlp->nlp_DID, ELS_CMD_ACC);
7391 /* Decrement the ndlp reference count from previous mbox command */
7395 mempool_free(pmb, phba->mbox_mem_pool);
7399 icmd = &elsiocb->iocb;
7400 icmd->ulpContext = rxid;
7401 icmd->unsli3.rcvsli3.ox_id = oxid;
7403 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
7404 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
7405 pcmd += sizeof(uint32_t); /* Skip past command */
7406 rls_rsp = (struct RLS_RSP *)pcmd;
7408 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
7409 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
7410 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
7411 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
7412 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
7413 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
7414 mempool_free(pmb, phba->mbox_mem_pool);
7415 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
7416 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
7417 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
7418 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
7419 elsiocb->iotag, elsiocb->iocb.ulpContext,
7420 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
7422 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
7423 phba->fc_stat.elsXmitACC++;
7424 elsiocb->context1 = lpfc_nlp_get(ndlp);
7425 if (!elsiocb->context1)
7428 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
7429 if (rc == IOCB_ERROR)
7436 lpfc_els_free_iocb(phba, elsiocb);
7440 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
7441 * @vport: pointer to a host virtual N_Port data structure.
7442 * @cmdiocb: pointer to lpfc command iocb data structure.
7443 * @ndlp: pointer to a node-list data structure.
7445 * This routine processes Read Link Status (RLS) IOCB received as an
7446 * ELS unsolicited event. It first checks the remote port state. If the
7447 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
7448 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
7449 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
7450 * for reading the HBA link statistics. It is for the callback function,
7451 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
7452 * to actually sending out RPL Accept (ACC) response.
7455 * 0 - Successfully processed rls iocb (currently always return 0)
7458 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7459 struct lpfc_nodelist *ndlp)
7461 struct lpfc_hba *phba = vport->phba;
7465 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
7466 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
7467 /* reject the unsolicited RLS request and done with it */
7470 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
7472 lpfc_read_lnk_stat(phba, mbox);
7473 mbox->ctx_buf = (void *)((unsigned long)
7474 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
7475 cmdiocb->iocb.ulpContext)); /* rx_id */
7476 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
7477 if (!mbox->ctx_ndlp)
7479 mbox->vport = vport;
7480 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
7481 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
7482 != MBX_NOT_FINISHED)
7483 /* Mbox completion will send ELS Response */
7485 /* Decrement reference count used for the failed mbox
7490 mempool_free(mbox, phba->mbox_mem_pool);
7493 /* issue rejection response */
7494 stat.un.b.lsRjtRsvd0 = 0;
7495 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7496 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
7497 stat.un.b.vendorUnique = 0;
7498 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
7503 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
7504 * @vport: pointer to a host virtual N_Port data structure.
7505 * @cmdiocb: pointer to lpfc command iocb data structure.
7506 * @ndlp: pointer to a node-list data structure.
7508 * This routine processes Read Timout Value (RTV) IOCB received as an
7509 * ELS unsolicited event. It first checks the remote port state. If the
7510 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
7511 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
7512 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
7513 * Value (RTV) unsolicited IOCB event.
7515 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7516 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7517 * will be stored into the context1 field of the IOCB for the completion
7518 * callback function to the RTV Accept Response ELS IOCB command.
7521 * 0 - Successfully processed rtv iocb (currently always return 0)
7524 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7525 struct lpfc_nodelist *ndlp)
7528 struct lpfc_hba *phba = vport->phba;
7530 struct RTV_RSP *rtv_rsp;
7532 struct lpfc_iocbq *elsiocb;
7536 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
7537 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
7538 /* reject the unsolicited RTV request and done with it */
7541 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
7542 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
7543 lpfc_max_els_tries, ndlp,
7544 ndlp->nlp_DID, ELS_CMD_ACC);
7549 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
7550 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
7551 pcmd += sizeof(uint32_t); /* Skip past command */
7553 /* use the command's xri in the response */
7554 elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */
7555 elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
7557 rtv_rsp = (struct RTV_RSP *)pcmd;
7559 /* populate RTV payload */
7560 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
7561 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
7562 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
7563 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
7564 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
7566 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
7567 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
7568 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
7569 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
7570 "Data: x%x x%x x%x\n",
7571 elsiocb->iotag, elsiocb->iocb.ulpContext,
7572 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
7574 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
7575 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
7576 phba->fc_stat.elsXmitACC++;
7577 elsiocb->context1 = lpfc_nlp_get(ndlp);
7578 if (!elsiocb->context1) {
7579 lpfc_els_free_iocb(phba, elsiocb);
7583 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
7584 if (rc == IOCB_ERROR) {
7586 lpfc_els_free_iocb(phba, elsiocb);
7591 /* issue rejection response */
7592 stat.un.b.lsRjtRsvd0 = 0;
7593 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7594 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
7595 stat.un.b.vendorUnique = 0;
7596 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
7600 /* lpfc_issue_els_rrq - Process an unsolicited rrq iocb
7601 * @vport: pointer to a host virtual N_Port data structure.
7602 * @ndlp: pointer to a node-list data structure.
7603 * @did: DID of the target.
7604 * @rrq: Pointer to the rrq struct.
7606 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
7607 * Successful the the completion handler will clear the RRQ.
7610 * 0 - Successfully sent rrq els iocb.
7611 * 1 - Failed to send rrq els iocb.
7614 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
7615 uint32_t did, struct lpfc_node_rrq *rrq)
7617 struct lpfc_hba *phba = vport->phba;
7618 struct RRQ *els_rrq;
7619 struct lpfc_iocbq *elsiocb;
7625 if (ndlp != rrq->ndlp)
7630 /* If ndlp is not NULL, we will bump the reference count on it */
7631 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
7632 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
7637 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
7639 /* For RRQ request, remainder of payload is Exchange IDs */
7640 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
7641 pcmd += sizeof(uint32_t);
7642 els_rrq = (struct RRQ *) pcmd;
7644 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
7645 bf_set(rrq_rxid, els_rrq, rrq->rxid);
7646 bf_set(rrq_did, els_rrq, vport->fc_myDID);
7647 els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
7648 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
7651 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
7652 "Issue RRQ: did:x%x",
7653 did, rrq->xritag, rrq->rxid);
7654 elsiocb->context_un.rrq = rrq;
7655 elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq;
7656 elsiocb->context1 = lpfc_nlp_get(ndlp);
7657 if (!elsiocb->context1)
7660 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
7661 if (ret == IOCB_ERROR)
7668 lpfc_els_free_iocb(phba, elsiocb);
7673 * lpfc_send_rrq - Sends ELS RRQ if needed.
7674 * @phba: pointer to lpfc hba data structure.
7675 * @rrq: pointer to the active rrq.
7677 * This routine will call the lpfc_issue_els_rrq if the rrq is
7678 * still active for the xri. If this function returns a failure then
7679 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
7681 * Returns 0 Success.
7685 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
7687 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
7692 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
7693 return lpfc_issue_els_rrq(rrq->vport, ndlp,
7700 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
7701 * @vport: pointer to a host virtual N_Port data structure.
7702 * @cmdsize: size of the ELS command.
7703 * @oldiocb: pointer to the original lpfc command iocb data structure.
7704 * @ndlp: pointer to a node-list data structure.
7706 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
7707 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
7709 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
7710 * will be incremented by 1 for holding the ndlp and the reference to ndlp
7711 * will be stored into the context1 field of the IOCB for the completion
7712 * callback function to the RPL Accept Response ELS command.
7715 * 0 - Successfully issued ACC RPL ELS command
7716 * 1 - Failed to issue ACC RPL ELS command
7719 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
7720 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
7723 struct lpfc_hba *phba = vport->phba;
7724 IOCB_t *icmd, *oldcmd;
7726 struct lpfc_iocbq *elsiocb;
7729 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
7730 ndlp->nlp_DID, ELS_CMD_ACC);
7735 icmd = &elsiocb->iocb;
7736 oldcmd = &oldiocb->iocb;
7737 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
7738 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
7740 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
7741 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
7742 pcmd += sizeof(uint16_t);
7743 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
7744 pcmd += sizeof(uint16_t);
7746 /* Setup the RPL ACC payload */
7747 rpl_rsp.listLen = be32_to_cpu(1);
7749 rpl_rsp.port_num_blk.portNum = 0;
7750 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
7751 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
7752 sizeof(struct lpfc_name));
7753 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
7754 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
7755 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7756 "0120 Xmit ELS RPL ACC response tag x%x "
7757 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
7759 elsiocb->iotag, elsiocb->iocb.ulpContext,
7760 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
7762 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
7763 phba->fc_stat.elsXmitACC++;
7764 elsiocb->context1 = lpfc_nlp_get(ndlp);
7765 if (!elsiocb->context1)
7768 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
7769 if (rc == IOCB_ERROR)
7776 lpfc_els_free_iocb(phba, elsiocb);
7781 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
7782 * @vport: pointer to a host virtual N_Port data structure.
7783 * @cmdiocb: pointer to lpfc command iocb data structure.
7784 * @ndlp: pointer to a node-list data structure.
7786 * This routine processes Read Port List (RPL) IOCB received as an ELS
7787 * unsolicited event. It first checks the remote port state. If the remote
7788 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
7789 * invokes the lpfc_els_rsp_reject() routine to send reject response.
7790 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
7791 * to accept the RPL.
7794 * 0 - Successfully processed rpl iocb (currently always return 0)
7797 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7798 struct lpfc_nodelist *ndlp)
7800 struct lpfc_dmabuf *pcmd;
7807 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
7808 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
7809 /* issue rejection response */
7810 stat.un.b.lsRjtRsvd0 = 0;
7811 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7812 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
7813 stat.un.b.vendorUnique = 0;
7814 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
7816 /* rejected the unsolicited RPL request and done with it */
7820 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7821 lp = (uint32_t *) pcmd->virt;
7822 rpl = (RPL *) (lp + 1);
7823 maxsize = be32_to_cpu(rpl->maxsize);
7825 /* We support only one port */
7826 if ((rpl->index == 0) &&
7828 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
7829 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
7831 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
7833 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
7839 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
7840 * @vport: pointer to a virtual N_Port data structure.
7841 * @cmdiocb: pointer to lpfc command iocb data structure.
7842 * @ndlp: pointer to a node-list data structure.
7844 * This routine processes Fibre Channel Address Resolution Protocol
7845 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
7846 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
7847 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
7848 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
7849 * remote PortName is compared against the FC PortName stored in the @vport
7850 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
7851 * compared against the FC NodeName stored in the @vport data structure.
7852 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
7853 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
7854 * invoked to send out FARP Response to the remote node. Before sending the
7855 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
7856 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
7857 * routine is invoked to log into the remote port first.
7860 * 0 - Either the FARP Match Mode not supported or successfully processed
7863 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7864 struct lpfc_nodelist *ndlp)
7866 struct lpfc_dmabuf *pcmd;
7872 icmd = &cmdiocb->iocb;
7873 did = icmd->un.elsreq64.remoteID;
7874 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7875 lp = (uint32_t *) pcmd->virt;
7879 /* FARP-REQ received from DID <did> */
7880 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7881 "0601 FARP-REQ received from DID x%x\n", did);
7882 /* We will only support match on WWPN or WWNN */
7883 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
7888 /* If this FARP command is searching for my portname */
7889 if (fp->Mflags & FARP_MATCH_PORT) {
7890 if (memcmp(&fp->RportName, &vport->fc_portname,
7891 sizeof(struct lpfc_name)) == 0)
7895 /* If this FARP command is searching for my nodename */
7896 if (fp->Mflags & FARP_MATCH_NODE) {
7897 if (memcmp(&fp->RnodeName, &vport->fc_nodename,
7898 sizeof(struct lpfc_name)) == 0)
7903 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
7904 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
7905 /* Log back into the node before sending the FARP. */
7906 if (fp->Rflags & FARP_REQUEST_PLOGI) {
7907 ndlp->nlp_prev_state = ndlp->nlp_state;
7908 lpfc_nlp_set_state(vport, ndlp,
7909 NLP_STE_PLOGI_ISSUE);
7910 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
7913 /* Send a FARP response to that node */
7914 if (fp->Rflags & FARP_REQUEST_FARPR)
7915 lpfc_issue_els_farpr(vport, did, 0);
7922 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
7923 * @vport: pointer to a host virtual N_Port data structure.
7924 * @cmdiocb: pointer to lpfc command iocb data structure.
7925 * @ndlp: pointer to a node-list data structure.
7927 * This routine processes Fibre Channel Address Resolution Protocol
7928 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
7929 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
7930 * the FARP response request.
7933 * 0 - Successfully processed FARPR IOCB (currently always return 0)
7936 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7937 struct lpfc_nodelist *ndlp)
7939 struct lpfc_dmabuf *pcmd;
7944 icmd = &cmdiocb->iocb;
7945 did = icmd->un.elsreq64.remoteID;
7946 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
7947 lp = (uint32_t *) pcmd->virt;
7950 /* FARP-RSP received from DID <did> */
7951 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7952 "0600 FARP-RSP received from DID x%x\n", did);
7953 /* ACCEPT the Farp resp request */
7954 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
7960 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
7961 * @vport: pointer to a host virtual N_Port data structure.
7962 * @cmdiocb: pointer to lpfc command iocb data structure.
7963 * @fan_ndlp: pointer to a node-list data structure.
7965 * This routine processes a Fabric Address Notification (FAN) IOCB
7966 * command received as an ELS unsolicited event. The FAN ELS command will
7967 * only be processed on a physical port (i.e., the @vport represents the
7968 * physical port). The fabric NodeName and PortName from the FAN IOCB are
7969 * compared against those in the phba data structure. If any of those is
7970 * different, the lpfc_initial_flogi() routine is invoked to initialize
7971 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
7972 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
7973 * is invoked to register login to the fabric.
7976 * 0 - Successfully processed fan iocb (currently always return 0).
7979 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7980 struct lpfc_nodelist *fan_ndlp)
7982 struct lpfc_hba *phba = vport->phba;
7986 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
7987 lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
7989 /* FAN received; Fan does not have a reply sequence */
7990 if ((vport == phba->pport) &&
7991 (vport->port_state == LPFC_LOCAL_CFG_LINK)) {
7992 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
7993 sizeof(struct lpfc_name))) ||
7994 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
7995 sizeof(struct lpfc_name)))) {
7996 /* This port has switched fabrics. FLOGI is required */
7997 lpfc_issue_init_vfi(vport);
7999 /* FAN verified - skip FLOGI */
8000 vport->fc_myDID = vport->fc_prevDID;
8001 if (phba->sli_rev < LPFC_SLI_REV4)
8002 lpfc_issue_fabric_reglogin(vport);
8004 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8005 "3138 Need register VFI: (x%x/%x)\n",
8006 vport->fc_prevDID, vport->fc_myDID);
8007 lpfc_issue_reg_vfi(vport);
8015 * lpfc_els_timeout - Handler funciton to the els timer
8016 * @t: timer context used to obtain the vport.
8018 * This routine is invoked by the ELS timer after timeout. It posts the ELS
8019 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
8020 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
8021 * up the worker thread. It is for the worker thread to invoke the routine
8022 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
8025 lpfc_els_timeout(struct timer_list *t)
8027 struct lpfc_vport *vport = from_timer(vport, t, els_tmofunc);
8028 struct lpfc_hba *phba = vport->phba;
8029 uint32_t tmo_posted;
8030 unsigned long iflag;
8032 spin_lock_irqsave(&vport->work_port_lock, iflag);
8033 tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
8034 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
8035 vport->work_port_events |= WORKER_ELS_TMO;
8036 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
8038 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
8039 lpfc_worker_wake_up(phba);
8045 * lpfc_els_timeout_handler - Process an els timeout event
8046 * @vport: pointer to a virtual N_Port data structure.
8048 * This routine is the actual handler function that processes an ELS timeout
8049 * event. It walks the ELS ring to get and abort all the IOCBs (except the
8050 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
8051 * invoking the lpfc_sli_issue_abort_iotag() routine.
8054 lpfc_els_timeout_handler(struct lpfc_vport *vport)
8056 struct lpfc_hba *phba = vport->phba;
8057 struct lpfc_sli_ring *pring;
8058 struct lpfc_iocbq *tmp_iocb, *piocb;
8060 struct lpfc_dmabuf *pcmd;
8061 uint32_t els_command = 0;
8063 uint32_t remote_ID = 0xffffffff;
8064 LIST_HEAD(abort_list);
8067 timeout = (uint32_t)(phba->fc_ratov << 1);
8069 pring = lpfc_phba_elsring(phba);
8070 if (unlikely(!pring))
8073 if (phba->pport->load_flag & FC_UNLOADING)
8076 spin_lock_irq(&phba->hbalock);
8077 if (phba->sli_rev == LPFC_SLI_REV4)
8078 spin_lock(&pring->ring_lock);
8080 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
8083 if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
8084 piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8085 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8088 if (piocb->vport != vport)
8091 pcmd = (struct lpfc_dmabuf *) piocb->context2;
8093 els_command = *(uint32_t *) (pcmd->virt);
8095 if (els_command == ELS_CMD_FARP ||
8096 els_command == ELS_CMD_FARPR ||
8097 els_command == ELS_CMD_FDISC)
8100 if (piocb->drvrTimeout > 0) {
8101 if (piocb->drvrTimeout >= timeout)
8102 piocb->drvrTimeout -= timeout;
8104 piocb->drvrTimeout = 0;
8108 remote_ID = 0xffffffff;
8109 if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
8110 remote_ID = cmd->un.elsreq64.remoteID;
8112 struct lpfc_nodelist *ndlp;
8113 ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
8115 remote_ID = ndlp->nlp_DID;
8117 list_add_tail(&piocb->dlist, &abort_list);
8119 if (phba->sli_rev == LPFC_SLI_REV4)
8120 spin_unlock(&pring->ring_lock);
8121 spin_unlock_irq(&phba->hbalock);
8123 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
8125 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8126 "0127 ELS timeout Data: x%x x%x x%x "
8127 "x%x\n", els_command,
8128 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
8129 spin_lock_irq(&phba->hbalock);
8130 list_del_init(&piocb->dlist);
8131 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
8132 spin_unlock_irq(&phba->hbalock);
8135 if (!list_empty(&pring->txcmplq))
8136 if (!(phba->pport->load_flag & FC_UNLOADING))
8137 mod_timer(&vport->els_tmofunc,
8138 jiffies + msecs_to_jiffies(1000 * timeout));
8142 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
8143 * @vport: pointer to a host virtual N_Port data structure.
8145 * This routine is used to clean up all the outstanding ELS commands on a
8146 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
8147 * routine. After that, it walks the ELS transmit queue to remove all the
8148 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
8149 * the IOCBs with a non-NULL completion callback function, the callback
8150 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
8151 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
8152 * callback function, the IOCB will simply be released. Finally, it walks
8153 * the ELS transmit completion queue to issue an abort IOCB to any transmit
8154 * completion queue IOCB that is associated with the @vport and is not
8155 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
8156 * part of the discovery state machine) out to HBA by invoking the
8157 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
8158 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
8159 * the IOCBs are aborted when this function returns.
8162 lpfc_els_flush_cmd(struct lpfc_vport *vport)
8164 LIST_HEAD(abort_list);
8165 struct lpfc_hba *phba = vport->phba;
8166 struct lpfc_sli_ring *pring;
8167 struct lpfc_iocbq *tmp_iocb, *piocb;
8169 unsigned long iflags = 0;
8171 lpfc_fabric_abort_vport(vport);
8174 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
8175 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
8176 * ultimately grabs the ring_lock, the driver must splice the list into
8177 * a working list and release the locks before calling the abort.
8179 spin_lock_irqsave(&phba->hbalock, iflags);
8180 pring = lpfc_phba_elsring(phba);
8182 /* Bail out if we've no ELS wq, like in PCI error recovery case. */
8183 if (unlikely(!pring)) {
8184 spin_unlock_irqrestore(&phba->hbalock, iflags);
8188 if (phba->sli_rev == LPFC_SLI_REV4)
8189 spin_lock(&pring->ring_lock);
8191 /* First we need to issue aborts to outstanding cmds on txcmpl */
8192 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
8193 if (piocb->iocb_flag & LPFC_IO_LIBDFC)
8196 if (piocb->vport != vport)
8199 if (piocb->iocb_flag & LPFC_DRIVER_ABORTED)
8202 /* On the ELS ring we can have ELS_REQUESTs or
8203 * GEN_REQUESTs waiting for a response.
8206 if (cmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
8207 list_add_tail(&piocb->dlist, &abort_list);
8209 /* If the link is down when flushing ELS commands
8210 * the firmware will not complete them till after
8211 * the link comes back up. This may confuse
8212 * discovery for the new link up, so we need to
8213 * change the compl routine to just clean up the iocb
8214 * and avoid any retry logic.
8216 if (phba->link_state == LPFC_LINK_DOWN)
8217 piocb->iocb_cmpl = lpfc_cmpl_els_link_down;
8219 if (cmd->ulpCommand == CMD_GEN_REQUEST64_CR)
8220 list_add_tail(&piocb->dlist, &abort_list);
8223 if (phba->sli_rev == LPFC_SLI_REV4)
8224 spin_unlock(&pring->ring_lock);
8225 spin_unlock_irqrestore(&phba->hbalock, iflags);
8227 /* Abort each txcmpl iocb on aborted list and remove the dlist links. */
8228 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
8229 spin_lock_irqsave(&phba->hbalock, iflags);
8230 list_del_init(&piocb->dlist);
8231 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
8232 spin_unlock_irqrestore(&phba->hbalock, iflags);
8234 if (!list_empty(&abort_list))
8235 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8236 "3387 abort list for txq not empty\n");
8237 INIT_LIST_HEAD(&abort_list);
8239 spin_lock_irqsave(&phba->hbalock, iflags);
8240 if (phba->sli_rev == LPFC_SLI_REV4)
8241 spin_lock(&pring->ring_lock);
8243 /* No need to abort the txq list,
8244 * just queue them up for lpfc_sli_cancel_iocbs
8246 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
8249 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
8253 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
8254 if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
8255 cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
8256 cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
8257 cmd->ulpCommand == CMD_ABORT_XRI_CN)
8260 if (piocb->vport != vport)
8263 list_del_init(&piocb->list);
8264 list_add_tail(&piocb->list, &abort_list);
8267 /* The same holds true for any FLOGI/FDISC on the fabric_iocb_list */
8268 if (vport == phba->pport) {
8269 list_for_each_entry_safe(piocb, tmp_iocb,
8270 &phba->fabric_iocb_list, list) {
8272 list_del_init(&piocb->list);
8273 list_add_tail(&piocb->list, &abort_list);
8277 if (phba->sli_rev == LPFC_SLI_REV4)
8278 spin_unlock(&pring->ring_lock);
8279 spin_unlock_irqrestore(&phba->hbalock, iflags);
8281 /* Cancel all the IOCBs from the completions list */
8282 lpfc_sli_cancel_iocbs(phba, &abort_list,
8283 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
8289 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
8290 * @phba: pointer to lpfc hba data structure.
8292 * This routine is used to clean up all the outstanding ELS commands on a
8293 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
8294 * routine. After that, it walks the ELS transmit queue to remove all the
8295 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
8296 * the IOCBs with the completion callback function associated, the callback
8297 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
8298 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
8299 * callback function associated, the IOCB will simply be released. Finally,
8300 * it walks the ELS transmit completion queue to issue an abort IOCB to any
8301 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
8302 * management plane IOCBs that are not part of the discovery state machine)
8303 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
8306 lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
8308 struct lpfc_vport *vport;
8310 spin_lock_irq(&phba->port_list_lock);
8311 list_for_each_entry(vport, &phba->port_list, listentry)
8312 lpfc_els_flush_cmd(vport);
8313 spin_unlock_irq(&phba->port_list_lock);
8319 * lpfc_send_els_failure_event - Posts an ELS command failure event
8320 * @phba: Pointer to hba context object.
8321 * @cmdiocbp: Pointer to command iocb which reported error.
8322 * @rspiocbp: Pointer to response iocb which reported error.
8324 * This function sends an event when there is an ELS command
8328 lpfc_send_els_failure_event(struct lpfc_hba *phba,
8329 struct lpfc_iocbq *cmdiocbp,
8330 struct lpfc_iocbq *rspiocbp)
8332 struct lpfc_vport *vport = cmdiocbp->vport;
8333 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8334 struct lpfc_lsrjt_event lsrjt_event;
8335 struct lpfc_fabric_event_header fabric_event;
8337 struct lpfc_nodelist *ndlp;
8340 ndlp = cmdiocbp->context1;
8344 if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
8345 lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
8346 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
8347 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
8348 sizeof(struct lpfc_name));
8349 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
8350 sizeof(struct lpfc_name));
8351 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8352 cmdiocbp->context2)->virt);
8353 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
8354 stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
8355 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
8356 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
8357 fc_host_post_vendor_event(shost,
8358 fc_get_event_number(),
8359 sizeof(lsrjt_event),
8360 (char *)&lsrjt_event,
8364 if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
8365 (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
8366 fabric_event.event_type = FC_REG_FABRIC_EVENT;
8367 if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
8368 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
8370 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
8371 memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
8372 sizeof(struct lpfc_name));
8373 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
8374 sizeof(struct lpfc_name));
8375 fc_host_post_vendor_event(shost,
8376 fc_get_event_number(),
8377 sizeof(fabric_event),
8378 (char *)&fabric_event,
8386 * lpfc_send_els_event - Posts unsolicited els event
8387 * @vport: Pointer to vport object.
8388 * @ndlp: Pointer FC node object.
8389 * @payload: ELS command code type.
8391 * This function posts an event when there is an incoming
8392 * unsolicited ELS command.
8395 lpfc_send_els_event(struct lpfc_vport *vport,
8396 struct lpfc_nodelist *ndlp,
8399 struct lpfc_els_event_header *els_data = NULL;
8400 struct lpfc_logo_event *logo_data = NULL;
8401 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8403 if (*payload == ELS_CMD_LOGO) {
8404 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
8406 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8407 "0148 Failed to allocate memory "
8408 "for LOGO event\n");
8411 els_data = &logo_data->header;
8413 els_data = kmalloc(sizeof(struct lpfc_els_event_header),
8416 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8417 "0149 Failed to allocate memory "
8422 els_data->event_type = FC_REG_ELS_EVENT;
8425 els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
8428 els_data->subcategory = LPFC_EVENT_PRLO_RCV;
8431 els_data->subcategory = LPFC_EVENT_ADISC_RCV;
8434 els_data->subcategory = LPFC_EVENT_LOGO_RCV;
8435 /* Copy the WWPN in the LOGO payload */
8436 memcpy(logo_data->logo_wwpn, &payload[2],
8437 sizeof(struct lpfc_name));
8443 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
8444 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
8445 if (*payload == ELS_CMD_LOGO) {
8446 fc_host_post_vendor_event(shost,
8447 fc_get_event_number(),
8448 sizeof(struct lpfc_logo_event),
8453 fc_host_post_vendor_event(shost,
8454 fc_get_event_number(),
8455 sizeof(struct lpfc_els_event_header),
8465 DECLARE_ENUM2STR_LOOKUP(lpfc_get_tlv_dtag_nm, fc_ls_tlv_dtag,
8466 FC_LS_TLV_DTAG_INIT);
8468 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_li_event_nm, fc_fpin_li_event_types,
8469 FC_FPIN_LI_EVT_TYPES_INIT);
8472 * lpfc_els_rcv_fpin_li - Process an FPIN Link Integrity Event.
8473 * @vport: Pointer to vport object.
8474 * @tlv: Pointer to the Link Integrity Notification Descriptor.
8476 * This function processes a link integrity FPIN event by
8480 lpfc_els_rcv_fpin_li(struct lpfc_vport *vport, struct fc_tlv_desc *tlv)
8482 struct fc_fn_li_desc *li = (struct fc_fn_li_desc *)tlv;
8483 const char *li_evt_str;
8486 li_evt = be16_to_cpu(li->event_type);
8487 li_evt_str = lpfc_get_fpin_li_event_nm(li_evt);
8489 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8490 "4680 FPIN Link Integrity %s (x%x) "
8491 "Detecting PN x%016llx Attached PN x%016llx "
8492 "Duration %d mSecs Count %d Port Cnt %d\n",
8494 be64_to_cpu(li->detecting_wwpn),
8495 be64_to_cpu(li->attached_wwpn),
8496 be32_to_cpu(li->event_threshold),
8497 be32_to_cpu(li->event_count),
8498 be32_to_cpu(li->pname_count));
8502 lpfc_els_rcv_fpin(struct lpfc_vport *vport, struct fc_els_fpin *fpin,
8505 struct fc_tlv_desc *tlv;
8506 const char *dtag_nm;
8507 uint32_t desc_cnt = 0, bytes_remain;
8510 /* FPINs handled only if we are in the right discovery state */
8511 if (vport->port_state < LPFC_DISC_AUTH)
8514 /* make sure there is the full fpin header */
8515 if (fpin_length < sizeof(struct fc_els_fpin))
8518 tlv = (struct fc_tlv_desc *)&fpin->fpin_desc[0];
8519 bytes_remain = fpin_length - offsetof(struct fc_els_fpin, fpin_desc);
8520 bytes_remain = min_t(u32, bytes_remain, be32_to_cpu(fpin->desc_len));
8522 /* process each descriptor */
8523 while (bytes_remain >= FC_TLV_DESC_HDR_SZ &&
8524 bytes_remain >= FC_TLV_DESC_SZ_FROM_LENGTH(tlv)) {
8526 dtag = be32_to_cpu(tlv->desc_tag);
8528 case ELS_DTAG_LNK_INTEGRITY:
8529 lpfc_els_rcv_fpin_li(vport, tlv);
8532 dtag_nm = lpfc_get_tlv_dtag_nm(dtag);
8533 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8534 "4678 skipped FPIN descriptor[%d]: "
8536 desc_cnt, dtag, dtag_nm);
8541 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv);
8542 tlv = fc_tlv_next_desc(tlv);
8545 fc_host_fpin_rcv(lpfc_shost_from_vport(vport), fpin_length,
8550 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
8551 * @phba: pointer to lpfc hba data structure.
8552 * @pring: pointer to a SLI ring.
8553 * @vport: pointer to a host virtual N_Port data structure.
8554 * @elsiocb: pointer to lpfc els command iocb data structure.
8556 * This routine is used for processing the IOCB associated with a unsolicited
8557 * event. It first determines whether there is an existing ndlp that matches
8558 * the DID from the unsolicited IOCB. If not, it will create a new one with
8559 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
8560 * IOCB is then used to invoke the proper routine and to set up proper state
8561 * of the discovery state machine.
8564 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8565 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
8567 struct Scsi_Host *shost;
8568 struct lpfc_nodelist *ndlp;
8570 uint32_t *payload, payload_len;
8571 uint32_t cmd, did, newnode;
8572 uint8_t rjt_exp, rjt_err = 0, init_link = 0;
8573 IOCB_t *icmd = &elsiocb->iocb;
8576 if (!vport || !(elsiocb->context2))
8580 payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
8581 payload_len = elsiocb->iocb.unsli3.rcvsli3.acc_len;
8583 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
8584 lpfc_post_buffer(phba, pring, 1);
8586 did = icmd->un.rcvels.remoteID;
8587 if (icmd->ulpStatus) {
8588 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8589 "RCV Unsol ELS: status:x%x/x%x did:x%x",
8590 icmd->ulpStatus, icmd->un.ulpWord[4], did);
8594 /* Check to see if link went down during discovery */
8595 if (lpfc_els_chk_latt(vport))
8598 /* Ignore traffic received during vport shutdown. */
8599 if (vport->load_flag & FC_UNLOADING)
8602 /* If NPort discovery is delayed drop incoming ELS */
8603 if ((vport->fc_flag & FC_DISC_DELAYED) &&
8604 (cmd != ELS_CMD_PLOGI))
8607 ndlp = lpfc_findnode_did(vport, did);
8609 /* Cannot find existing Fabric ndlp, so allocate a new one */
8610 ndlp = lpfc_nlp_init(vport, did);
8613 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
8615 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
8616 ndlp->nlp_type |= NLP_FABRIC;
8617 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
8618 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
8622 phba->fc_stat.elsRcvFrame++;
8625 * Do not process any unsolicited ELS commands
8626 * if the ndlp is in DEV_LOSS
8628 shost = lpfc_shost_from_vport(vport);
8629 spin_lock_irq(&ndlp->lock);
8630 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
8631 spin_unlock_irq(&ndlp->lock);
8636 spin_unlock_irq(&ndlp->lock);
8638 elsiocb->context1 = lpfc_nlp_get(ndlp);
8639 if (!elsiocb->context1)
8641 elsiocb->vport = vport;
8643 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
8644 cmd &= ELS_CMD_MASK;
8646 /* ELS command <elsCmd> received from NPORT <did> */
8647 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8648 "0112 ELS command x%x received from NPORT x%x "
8649 "Data: x%x x%x x%x x%x\n",
8650 cmd, did, vport->port_state, vport->fc_flag,
8651 vport->fc_myDID, vport->fc_prevDID);
8653 /* reject till our FLOGI completes or PLOGI assigned DID via PT2PT */
8654 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
8655 (cmd != ELS_CMD_FLOGI) &&
8656 !((cmd == ELS_CMD_PLOGI) && (vport->fc_flag & FC_PT2PT))) {
8657 rjt_err = LSRJT_LOGICAL_BSY;
8658 rjt_exp = LSEXP_NOTHING_MORE;
8664 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8665 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
8666 did, vport->port_state, ndlp->nlp_flag);
8668 phba->fc_stat.elsRcvPLOGI++;
8669 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
8670 if (phba->sli_rev == LPFC_SLI_REV4 &&
8671 (phba->pport->fc_flag & FC_PT2PT)) {
8672 vport->fc_prevDID = vport->fc_myDID;
8673 /* Our DID needs to be updated before registering
8674 * the vfi. This is done in lpfc_rcv_plogi but
8675 * that is called after the reg_vfi.
8677 vport->fc_myDID = elsiocb->iocb.un.rcvels.parmRo;
8678 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8679 "3312 Remote port assigned DID x%x "
8680 "%x\n", vport->fc_myDID,
8684 lpfc_send_els_event(vport, ndlp, payload);
8686 /* If Nport discovery is delayed, reject PLOGIs */
8687 if (vport->fc_flag & FC_DISC_DELAYED) {
8688 rjt_err = LSRJT_UNABLE_TPC;
8689 rjt_exp = LSEXP_NOTHING_MORE;
8693 if (vport->port_state < LPFC_DISC_AUTH) {
8694 if (!(phba->pport->fc_flag & FC_PT2PT) ||
8695 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
8696 rjt_err = LSRJT_UNABLE_TPC;
8697 rjt_exp = LSEXP_NOTHING_MORE;
8702 spin_lock_irq(&ndlp->lock);
8703 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
8704 spin_unlock_irq(&ndlp->lock);
8706 lpfc_disc_state_machine(vport, ndlp, elsiocb,
8711 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8712 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
8713 did, vport->port_state, ndlp->nlp_flag);
8715 phba->fc_stat.elsRcvFLOGI++;
8717 /* If the driver believes fabric discovery is done and is ready,
8718 * bounce the link. There is some descrepancy.
8720 if (vport->port_state >= LPFC_LOCAL_CFG_LINK &&
8721 vport->fc_flag & FC_PT2PT &&
8722 vport->rcv_flogi_cnt >= 1) {
8723 rjt_err = LSRJT_LOGICAL_BSY;
8724 rjt_exp = LSEXP_NOTHING_MORE;
8729 lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
8731 lpfc_disc_state_machine(vport, ndlp, NULL,
8735 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8736 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
8737 did, vport->port_state, ndlp->nlp_flag);
8739 phba->fc_stat.elsRcvLOGO++;
8740 lpfc_send_els_event(vport, ndlp, payload);
8741 if (vport->port_state < LPFC_DISC_AUTH) {
8742 rjt_err = LSRJT_UNABLE_TPC;
8743 rjt_exp = LSEXP_NOTHING_MORE;
8746 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
8749 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8750 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
8751 did, vport->port_state, ndlp->nlp_flag);
8753 phba->fc_stat.elsRcvPRLO++;
8754 lpfc_send_els_event(vport, ndlp, payload);
8755 if (vport->port_state < LPFC_DISC_AUTH) {
8756 rjt_err = LSRJT_UNABLE_TPC;
8757 rjt_exp = LSEXP_NOTHING_MORE;
8760 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
8763 phba->fc_stat.elsRcvLCB++;
8764 lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
8767 phba->fc_stat.elsRcvRDP++;
8768 lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
8771 phba->fc_stat.elsRcvRSCN++;
8772 lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
8774 lpfc_disc_state_machine(vport, ndlp, NULL,
8778 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8779 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
8780 did, vport->port_state, ndlp->nlp_flag);
8782 lpfc_send_els_event(vport, ndlp, payload);
8783 phba->fc_stat.elsRcvADISC++;
8784 if (vport->port_state < LPFC_DISC_AUTH) {
8785 rjt_err = LSRJT_UNABLE_TPC;
8786 rjt_exp = LSEXP_NOTHING_MORE;
8789 lpfc_disc_state_machine(vport, ndlp, elsiocb,
8793 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8794 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
8795 did, vport->port_state, ndlp->nlp_flag);
8797 phba->fc_stat.elsRcvPDISC++;
8798 if (vport->port_state < LPFC_DISC_AUTH) {
8799 rjt_err = LSRJT_UNABLE_TPC;
8800 rjt_exp = LSEXP_NOTHING_MORE;
8803 lpfc_disc_state_machine(vport, ndlp, elsiocb,
8807 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8808 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
8809 did, vport->port_state, ndlp->nlp_flag);
8811 phba->fc_stat.elsRcvFARPR++;
8812 lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
8815 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8816 "RCV FARP: did:x%x/ste:x%x flg:x%x",
8817 did, vport->port_state, ndlp->nlp_flag);
8819 phba->fc_stat.elsRcvFARP++;
8820 lpfc_els_rcv_farp(vport, elsiocb, ndlp);
8823 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8824 "RCV FAN: did:x%x/ste:x%x flg:x%x",
8825 did, vport->port_state, ndlp->nlp_flag);
8827 phba->fc_stat.elsRcvFAN++;
8828 lpfc_els_rcv_fan(vport, elsiocb, ndlp);
8831 case ELS_CMD_NVMEPRLI:
8832 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8833 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
8834 did, vport->port_state, ndlp->nlp_flag);
8836 phba->fc_stat.elsRcvPRLI++;
8837 if ((vport->port_state < LPFC_DISC_AUTH) &&
8838 (vport->fc_flag & FC_FABRIC)) {
8839 rjt_err = LSRJT_UNABLE_TPC;
8840 rjt_exp = LSEXP_NOTHING_MORE;
8843 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
8846 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8847 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
8848 did, vport->port_state, ndlp->nlp_flag);
8850 phba->fc_stat.elsRcvLIRR++;
8851 lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
8853 lpfc_disc_state_machine(vport, ndlp, NULL,
8857 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8858 "RCV RLS: did:x%x/ste:x%x flg:x%x",
8859 did, vport->port_state, ndlp->nlp_flag);
8861 phba->fc_stat.elsRcvRLS++;
8862 lpfc_els_rcv_rls(vport, elsiocb, ndlp);
8864 lpfc_disc_state_machine(vport, ndlp, NULL,
8868 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8869 "RCV RPL: did:x%x/ste:x%x flg:x%x",
8870 did, vport->port_state, ndlp->nlp_flag);
8872 phba->fc_stat.elsRcvRPL++;
8873 lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
8875 lpfc_disc_state_machine(vport, ndlp, NULL,
8879 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8880 "RCV RNID: did:x%x/ste:x%x flg:x%x",
8881 did, vport->port_state, ndlp->nlp_flag);
8883 phba->fc_stat.elsRcvRNID++;
8884 lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
8886 lpfc_disc_state_machine(vport, ndlp, NULL,
8890 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8891 "RCV RTV: did:x%x/ste:x%x flg:x%x",
8892 did, vport->port_state, ndlp->nlp_flag);
8893 phba->fc_stat.elsRcvRTV++;
8894 lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
8896 lpfc_disc_state_machine(vport, ndlp, NULL,
8900 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8901 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
8902 did, vport->port_state, ndlp->nlp_flag);
8904 phba->fc_stat.elsRcvRRQ++;
8905 lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
8907 lpfc_disc_state_machine(vport, ndlp, NULL,
8911 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8912 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
8913 did, vport->port_state, ndlp->nlp_flag);
8915 phba->fc_stat.elsRcvECHO++;
8916 lpfc_els_rcv_echo(vport, elsiocb, ndlp);
8918 lpfc_disc_state_machine(vport, ndlp, NULL,
8922 /* receive this due to exchange closed */
8923 rjt_err = LSRJT_UNABLE_TPC;
8924 rjt_exp = LSEXP_INVALID_OX_RX;
8927 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8928 "RCV FPIN: did:x%x/ste:x%x flg:x%x",
8929 did, vport->port_state, ndlp->nlp_flag);
8931 lpfc_els_rcv_fpin(vport, (struct fc_els_fpin *)payload,
8934 /* There are no replies, so no rjt codes */
8937 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8938 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
8939 cmd, did, vport->port_state);
8941 /* Unsupported ELS command, reject */
8942 rjt_err = LSRJT_CMD_UNSUPPORTED;
8943 rjt_exp = LSEXP_NOTHING_MORE;
8945 /* Unknown ELS command <elsCmd> received from NPORT <did> */
8946 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8947 "0115 Unknown ELS command x%x "
8948 "received from NPORT x%x\n", cmd, did);
8950 lpfc_disc_state_machine(vport, ndlp, NULL,
8956 /* check if need to LS_RJT received ELS cmd */
8958 memset(&stat, 0, sizeof(stat));
8959 stat.un.b.lsRjtRsnCode = rjt_err;
8960 stat.un.b.lsRjtRsnCodeExp = rjt_exp;
8961 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
8963 /* Remove the reference from above for new nodes. */
8965 lpfc_disc_state_machine(vport, ndlp, NULL,
8969 /* Release the reference on this elsiocb, not the ndlp. */
8970 lpfc_nlp_put(elsiocb->context1);
8971 elsiocb->context1 = NULL;
8973 /* Special case. Driver received an unsolicited command that
8974 * unsupportable given the driver's current state. Reset the
8975 * link and start over.
8978 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8981 lpfc_linkdown(phba);
8982 lpfc_init_link(phba, mbox,
8984 phba->cfg_link_speed);
8985 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
8986 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
8987 mbox->vport = vport;
8988 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
8990 mempool_free(mbox, phba->mbox_mem_pool);
8996 if (vport && !(vport->load_flag & FC_UNLOADING))
8997 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8998 "0111 Dropping received ELS cmd "
8999 "Data: x%x x%x x%x\n",
9000 icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout);
9001 phba->fc_stat.elsRcvDrop++;
9005 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
9006 * @phba: pointer to lpfc hba data structure.
9007 * @pring: pointer to a SLI ring.
9008 * @elsiocb: pointer to lpfc els iocb data structure.
9010 * This routine is used to process an unsolicited event received from a SLI
9011 * (Service Level Interface) ring. The actual processing of the data buffer
9012 * associated with the unsolicited event is done by invoking the routine
9013 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
9014 * SLI ring on which the unsolicited event was received.
9017 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9018 struct lpfc_iocbq *elsiocb)
9020 struct lpfc_vport *vport = phba->pport;
9021 IOCB_t *icmd = &elsiocb->iocb;
9023 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
9024 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
9026 elsiocb->context1 = NULL;
9027 elsiocb->context2 = NULL;
9028 elsiocb->context3 = NULL;
9030 if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
9031 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
9032 } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
9033 (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
9034 IOERR_RCV_BUFFER_WAITING) {
9035 phba->fc_stat.NoRcvBuf++;
9036 /* Not enough posted buffers; Try posting more buffers */
9037 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
9038 lpfc_post_buffer(phba, pring, 0);
9042 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
9043 (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
9044 icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
9045 if (icmd->unsli3.rcvsli3.vpi == 0xffff)
9046 vport = phba->pport;
9048 vport = lpfc_find_vport_by_vpid(phba,
9049 icmd->unsli3.rcvsli3.vpi);
9052 /* If there are no BDEs associated
9053 * with this IOCB, there is nothing to do.
9055 if (icmd->ulpBdeCount == 0)
9058 /* type of ELS cmd is first 32bit word
9061 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
9062 elsiocb->context2 = bdeBuf1;
9064 paddr = getPaddr(icmd->un.cont64[0].addrHigh,
9065 icmd->un.cont64[0].addrLow);
9066 elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
9070 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
9072 * The different unsolicited event handlers would tell us
9073 * if they are done with "mp" by setting context2 to NULL.
9075 if (elsiocb->context2) {
9076 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
9077 elsiocb->context2 = NULL;
9080 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
9081 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
9082 icmd->ulpBdeCount == 2) {
9083 elsiocb->context2 = bdeBuf2;
9084 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
9085 /* free mp if we are done with it */
9086 if (elsiocb->context2) {
9087 lpfc_in_buf_free(phba, elsiocb->context2);
9088 elsiocb->context2 = NULL;
9094 lpfc_start_fdmi(struct lpfc_vport *vport)
9096 struct lpfc_nodelist *ndlp;
9098 /* If this is the first time, allocate an ndlp and initialize
9099 * it. Otherwise, make sure the node is enabled and then do the
9102 ndlp = lpfc_findnode_did(vport, FDMI_DID);
9104 ndlp = lpfc_nlp_init(vport, FDMI_DID);
9106 ndlp->nlp_type |= NLP_FABRIC;
9112 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
9113 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
9117 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
9118 * @phba: pointer to lpfc hba data structure.
9119 * @vport: pointer to a virtual N_Port data structure.
9121 * This routine issues a Port Login (PLOGI) to the Name Server with
9122 * State Change Request (SCR) for a @vport. This routine will create an
9123 * ndlp for the Name Server associated to the @vport if such node does
9124 * not already exist. The PLOGI to Name Server is issued by invoking the
9125 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
9126 * (FDMI) is configured to the @vport, a FDMI node will be created and
9127 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
9130 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
9132 struct lpfc_nodelist *ndlp;
9133 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9136 * If lpfc_delay_discovery parameter is set and the clean address
9137 * bit is cleared and fc fabric parameters chenged, delay FC NPort
9140 spin_lock_irq(shost->host_lock);
9141 if (vport->fc_flag & FC_DISC_DELAYED) {
9142 spin_unlock_irq(shost->host_lock);
9143 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9144 "3334 Delay fc port discovery for %d seconds\n",
9146 mod_timer(&vport->delayed_disc_tmo,
9147 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
9150 spin_unlock_irq(shost->host_lock);
9152 ndlp = lpfc_findnode_did(vport, NameServer_DID);
9154 ndlp = lpfc_nlp_init(vport, NameServer_DID);
9156 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
9157 lpfc_disc_start(vport);
9160 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9161 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9162 "0251 NameServer login: no memory\n");
9167 ndlp->nlp_type |= NLP_FABRIC;
9169 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
9171 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
9172 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9173 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9174 "0252 Cannot issue NameServer login\n");
9178 if ((phba->cfg_enable_SmartSAN ||
9179 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) &&
9180 (vport->load_flag & FC_ALLOW_FDMI))
9181 lpfc_start_fdmi(vport);
9185 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
9186 * @phba: pointer to lpfc hba data structure.
9187 * @pmb: pointer to the driver internal queue element for mailbox command.
9189 * This routine is the completion callback function to register new vport
9190 * mailbox command. If the new vport mailbox command completes successfully,
9191 * the fabric registration login shall be performed on physical port (the
9192 * new vport created is actually a physical port, with VPI 0) or the port
9193 * login to Name Server for State Change Request (SCR) will be performed
9194 * on virtual port (real virtual port, with VPI greater than 0).
9197 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
9199 struct lpfc_vport *vport = pmb->vport;
9200 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9201 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
9202 MAILBOX_t *mb = &pmb->u.mb;
9205 spin_lock_irq(shost->host_lock);
9206 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
9207 spin_unlock_irq(shost->host_lock);
9209 if (mb->mbxStatus) {
9210 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9211 "0915 Register VPI failed : Status: x%x"
9212 " upd bit: x%x \n", mb->mbxStatus,
9213 mb->un.varRegVpi.upd);
9214 if (phba->sli_rev == LPFC_SLI_REV4 &&
9215 mb->un.varRegVpi.upd)
9216 goto mbox_err_exit ;
9218 switch (mb->mbxStatus) {
9219 case 0x11: /* unsupported feature */
9220 case 0x9603: /* max_vpi exceeded */
9221 case 0x9602: /* Link event since CLEAR_LA */
9222 /* giving up on vport registration */
9223 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9224 spin_lock_irq(shost->host_lock);
9225 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
9226 spin_unlock_irq(shost->host_lock);
9227 lpfc_can_disctmo(vport);
9229 /* If reg_vpi fail with invalid VPI status, re-init VPI */
9231 spin_lock_irq(shost->host_lock);
9232 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
9233 spin_unlock_irq(shost->host_lock);
9234 lpfc_init_vpi(phba, pmb, vport->vpi);
9236 pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
9237 rc = lpfc_sli_issue_mbox(phba, pmb,
9239 if (rc == MBX_NOT_FINISHED) {
9240 lpfc_printf_vlog(vport, KERN_ERR,
9242 "2732 Failed to issue INIT_VPI"
9243 " mailbox command\n");
9250 /* Try to recover from this error */
9251 if (phba->sli_rev == LPFC_SLI_REV4)
9252 lpfc_sli4_unreg_all_rpis(vport);
9253 lpfc_mbx_unreg_vpi(vport);
9254 spin_lock_irq(shost->host_lock);
9255 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
9256 spin_unlock_irq(shost->host_lock);
9257 if (mb->mbxStatus == MBX_NOT_FINISHED)
9259 if ((vport->port_type == LPFC_PHYSICAL_PORT) &&
9260 !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) {
9261 if (phba->sli_rev == LPFC_SLI_REV4)
9262 lpfc_issue_init_vfi(vport);
9264 lpfc_initial_flogi(vport);
9266 lpfc_initial_fdisc(vport);
9271 spin_lock_irq(shost->host_lock);
9272 vport->vpi_state |= LPFC_VPI_REGISTERED;
9273 spin_unlock_irq(shost->host_lock);
9274 if (vport == phba->pport) {
9275 if (phba->sli_rev < LPFC_SLI_REV4)
9276 lpfc_issue_fabric_reglogin(vport);
9279 * If the physical port is instantiated using
9280 * FDISC, do not start vport discovery.
9282 if (vport->port_state != LPFC_FDISC)
9283 lpfc_start_fdiscs(phba);
9284 lpfc_do_scr_ns_plogi(phba, vport);
9287 lpfc_do_scr_ns_plogi(phba, vport);
9291 /* Now, we decrement the ndlp reference count held for this
9296 mempool_free(pmb, phba->mbox_mem_pool);
9301 * lpfc_register_new_vport - Register a new vport with a HBA
9302 * @phba: pointer to lpfc hba data structure.
9303 * @vport: pointer to a host virtual N_Port data structure.
9304 * @ndlp: pointer to a node-list data structure.
9306 * This routine registers the @vport as a new virtual port with a HBA.
9307 * It is done through a registering vpi mailbox command.
9310 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
9311 struct lpfc_nodelist *ndlp)
9313 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9316 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9318 lpfc_reg_vpi(vport, mbox);
9319 mbox->vport = vport;
9320 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
9321 if (!mbox->ctx_ndlp) {
9322 mempool_free(mbox, phba->mbox_mem_pool);
9326 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
9327 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
9328 == MBX_NOT_FINISHED) {
9329 /* mailbox command not success, decrement ndlp
9330 * reference count for this command
9333 mempool_free(mbox, phba->mbox_mem_pool);
9335 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9336 "0253 Register VPI: Can't send mbox\n");
9340 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9341 "0254 Register VPI: no memory\n");
9347 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9348 spin_lock_irq(shost->host_lock);
9349 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
9350 spin_unlock_irq(shost->host_lock);
9355 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
9356 * @phba: pointer to lpfc hba data structure.
9358 * This routine cancels the retry delay timers to all the vports.
9361 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
9363 struct lpfc_vport **vports;
9364 struct lpfc_nodelist *ndlp;
9365 uint32_t link_state;
9368 /* Treat this failure as linkdown for all vports */
9369 link_state = phba->link_state;
9370 lpfc_linkdown(phba);
9371 phba->link_state = link_state;
9373 vports = lpfc_create_vport_work_array(phba);
9376 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9377 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
9379 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
9380 lpfc_els_flush_cmd(vports[i]);
9382 lpfc_destroy_vport_work_array(phba, vports);
9387 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
9388 * @phba: pointer to lpfc hba data structure.
9390 * This routine abort all pending discovery commands and
9391 * start a timer to retry FLOGI for the physical port
9395 lpfc_retry_pport_discovery(struct lpfc_hba *phba)
9397 struct lpfc_nodelist *ndlp;
9398 struct Scsi_Host *shost;
9400 /* Cancel the all vports retry delay retry timers */
9401 lpfc_cancel_all_vport_retry_delay_timer(phba);
9403 /* If fabric require FLOGI, then re-instantiate physical login */
9404 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
9408 shost = lpfc_shost_from_vport(phba->pport);
9409 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
9410 spin_lock_irq(&ndlp->lock);
9411 ndlp->nlp_flag |= NLP_DELAY_TMO;
9412 spin_unlock_irq(&ndlp->lock);
9413 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
9414 phba->pport->port_state = LPFC_FLOGI;
9419 * lpfc_fabric_login_reqd - Check if FLOGI required.
9420 * @phba: pointer to lpfc hba data structure.
9421 * @cmdiocb: pointer to FDISC command iocb.
9422 * @rspiocb: pointer to FDISC response iocb.
9424 * This routine checks if a FLOGI is reguired for FDISC
9428 lpfc_fabric_login_reqd(struct lpfc_hba *phba,
9429 struct lpfc_iocbq *cmdiocb,
9430 struct lpfc_iocbq *rspiocb)
9433 if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) ||
9434 (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED))
9441 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
9442 * @phba: pointer to lpfc hba data structure.
9443 * @cmdiocb: pointer to lpfc command iocb data structure.
9444 * @rspiocb: pointer to lpfc response iocb data structure.
9446 * This routine is the completion callback function to a Fabric Discover
9447 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
9448 * single threaded, each FDISC completion callback function will reset
9449 * the discovery timer for all vports such that the timers will not get
9450 * unnecessary timeout. The function checks the FDISC IOCB status. If error
9451 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
9452 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
9453 * assigned to the vport has been changed with the completion of the FDISC
9454 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
9455 * are unregistered from the HBA, and then the lpfc_register_new_vport()
9456 * routine is invoked to register new vport with the HBA. Otherwise, the
9457 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
9458 * Server for State Change Request (SCR).
9461 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9462 struct lpfc_iocbq *rspiocb)
9464 struct lpfc_vport *vport = cmdiocb->vport;
9465 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9466 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
9467 struct lpfc_nodelist *np;
9468 struct lpfc_nodelist *next_np;
9469 IOCB_t *irsp = &rspiocb->iocb;
9470 struct lpfc_iocbq *piocb;
9471 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
9472 struct serv_parm *sp;
9473 uint8_t fabric_param_changed;
9475 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
9476 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
9477 irsp->ulpStatus, irsp->un.ulpWord[4],
9479 /* Since all FDISCs are being single threaded, we
9480 * must reset the discovery timer for ALL vports
9481 * waiting to send FDISC when one completes.
9483 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
9484 lpfc_set_disctmo(piocb->vport);
9487 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
9488 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
9489 irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
9491 if (irsp->ulpStatus) {
9493 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
9494 lpfc_retry_pport_discovery(phba);
9498 /* Check for retry */
9499 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
9502 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9503 "0126 FDISC failed. (x%x/x%x)\n",
9504 irsp->ulpStatus, irsp->un.ulpWord[4]);
9507 spin_lock_irq(shost->host_lock);
9508 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
9509 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
9510 vport->fc_flag |= FC_FABRIC;
9511 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
9512 vport->fc_flag |= FC_PUBLIC_LOOP;
9513 spin_unlock_irq(shost->host_lock);
9515 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
9516 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
9517 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
9520 sp = prsp->virt + sizeof(uint32_t);
9521 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
9522 memcpy(&vport->fabric_portname, &sp->portName,
9523 sizeof(struct lpfc_name));
9524 memcpy(&vport->fabric_nodename, &sp->nodeName,
9525 sizeof(struct lpfc_name));
9526 if (fabric_param_changed &&
9527 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
9528 /* If our NportID changed, we need to ensure all
9529 * remaining NPORTs get unreg_login'ed so we can
9532 list_for_each_entry_safe(np, next_np,
9533 &vport->fc_nodes, nlp_listp) {
9534 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
9535 !(np->nlp_flag & NLP_NPR_ADISC))
9537 spin_lock_irq(&ndlp->lock);
9538 np->nlp_flag &= ~NLP_NPR_ADISC;
9539 spin_unlock_irq(&ndlp->lock);
9540 lpfc_unreg_rpi(vport, np);
9542 lpfc_cleanup_pending_mbox(vport);
9544 if (phba->sli_rev == LPFC_SLI_REV4)
9545 lpfc_sli4_unreg_all_rpis(vport);
9547 lpfc_mbx_unreg_vpi(vport);
9548 spin_lock_irq(shost->host_lock);
9549 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
9550 if (phba->sli_rev == LPFC_SLI_REV4)
9551 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
9553 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
9554 spin_unlock_irq(shost->host_lock);
9555 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
9556 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
9558 * Driver needs to re-reg VPI in order for f/w
9559 * to update the MAC address.
9561 lpfc_register_new_vport(phba, vport, ndlp);
9562 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
9566 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
9567 lpfc_issue_init_vpi(vport);
9568 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
9569 lpfc_register_new_vport(phba, vport, ndlp);
9571 lpfc_do_scr_ns_plogi(phba, vport);
9573 /* The FDISC completed successfully. Move the fabric ndlp to
9574 * UNMAPPED state and register with the transport.
9576 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
9580 if (vport->fc_vport &&
9581 (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS))
9582 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9583 /* Cancel discovery timer */
9584 lpfc_can_disctmo(vport);
9586 lpfc_els_free_iocb(phba, cmdiocb);
9591 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
9592 * @vport: pointer to a virtual N_Port data structure.
9593 * @ndlp: pointer to a node-list data structure.
9594 * @retry: number of retries to the command IOCB.
9596 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
9597 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
9598 * routine to issue the IOCB, which makes sure only one outstanding fabric
9599 * IOCB will be sent off HBA at any given time.
9601 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
9602 * will be incremented by 1 for holding the ndlp and the reference to ndlp
9603 * will be stored into the context1 field of the IOCB for the completion
9604 * callback function to the FDISC ELS command.
9607 * 0 - Successfully issued fdisc iocb command
9608 * 1 - Failed to issue fdisc iocb command
9611 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
9614 struct lpfc_hba *phba = vport->phba;
9616 struct lpfc_iocbq *elsiocb;
9617 struct serv_parm *sp;
9620 int did = ndlp->nlp_DID;
9623 vport->port_state = LPFC_FDISC;
9624 vport->fc_myDID = 0;
9625 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
9626 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
9629 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9630 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9631 "0255 Issue FDISC: no IOCB\n");
9635 icmd = &elsiocb->iocb;
9636 icmd->un.elsreq64.myID = 0;
9637 icmd->un.elsreq64.fl = 1;
9640 * SLI3 ports require a different context type value than SLI4.
9641 * Catch SLI3 ports here and override the prep.
9643 if (phba->sli_rev == LPFC_SLI_REV3) {
9648 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
9649 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
9650 pcmd += sizeof(uint32_t); /* CSP Word 1 */
9651 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
9652 sp = (struct serv_parm *) pcmd;
9653 /* Setup CSPs accordingly for Fabric */
9654 sp->cmn.e_d_tov = 0;
9655 sp->cmn.w2.r_a_tov = 0;
9656 sp->cmn.virtual_fabric_support = 0;
9657 sp->cls1.classValid = 0;
9658 sp->cls2.seqDelivery = 1;
9659 sp->cls3.seqDelivery = 1;
9661 pcmd += sizeof(uint32_t); /* CSP Word 2 */
9662 pcmd += sizeof(uint32_t); /* CSP Word 3 */
9663 pcmd += sizeof(uint32_t); /* CSP Word 4 */
9664 pcmd += sizeof(uint32_t); /* Port Name */
9665 memcpy(pcmd, &vport->fc_portname, 8);
9666 pcmd += sizeof(uint32_t); /* Node Name */
9667 pcmd += sizeof(uint32_t); /* Node Name */
9668 memcpy(pcmd, &vport->fc_nodename, 8);
9669 sp->cmn.valid_vendor_ver_level = 0;
9670 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
9671 lpfc_set_disctmo(vport);
9673 phba->fc_stat.elsXmitFDISC++;
9674 elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
9676 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
9677 "Issue FDISC: did:x%x",
9680 elsiocb->context1 = lpfc_nlp_get(ndlp);
9681 if (!elsiocb->context1)
9684 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
9685 if (rc == IOCB_ERROR) {
9690 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
9694 lpfc_els_free_iocb(phba, elsiocb);
9695 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
9696 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9697 "0256 Issue FDISC: Cannot send IOCB\n");
9702 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
9703 * @phba: pointer to lpfc hba data structure.
9704 * @cmdiocb: pointer to lpfc command iocb data structure.
9705 * @rspiocb: pointer to lpfc response iocb data structure.
9707 * This routine is the completion callback function to the issuing of a LOGO
9708 * ELS command off a vport. It frees the command IOCB and then decrement the
9709 * reference count held on ndlp for this completion function, indicating that
9710 * the reference to the ndlp is no long needed. Note that the
9711 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
9712 * callback function and an additional explicit ndlp reference decrementation
9713 * will trigger the actual release of the ndlp.
9716 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9717 struct lpfc_iocbq *rspiocb)
9719 struct lpfc_vport *vport = cmdiocb->vport;
9721 struct lpfc_nodelist *ndlp;
9722 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9724 ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
9725 irsp = &rspiocb->iocb;
9726 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
9727 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
9728 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
9730 /* NPIV LOGO completes to NPort <nlp_DID> */
9731 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
9732 "2928 NPIV LOGO completes to NPort x%x "
9733 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
9734 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
9735 irsp->ulpTimeout, vport->num_disc_nodes,
9736 kref_read(&ndlp->kref), ndlp->nlp_flag,
9737 ndlp->fc4_xpt_flags);
9739 if (irsp->ulpStatus == IOSTAT_SUCCESS) {
9740 spin_lock_irq(shost->host_lock);
9741 vport->fc_flag &= ~FC_NDISC_ACTIVE;
9742 vport->fc_flag &= ~FC_FABRIC;
9743 spin_unlock_irq(shost->host_lock);
9744 lpfc_can_disctmo(vport);
9747 /* Safe to release resources now. */
9748 lpfc_els_free_iocb(phba, cmdiocb);
9750 vport->unreg_vpi_cmpl = VPORT_ERROR;
9754 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
9755 * @vport: pointer to a virtual N_Port data structure.
9756 * @ndlp: pointer to a node-list data structure.
9758 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
9760 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
9761 * will be incremented by 1 for holding the ndlp and the reference to ndlp
9762 * will be stored into the context1 field of the IOCB for the completion
9763 * callback function to the LOGO ELS command.
9766 * 0 - Successfully issued logo off the @vport
9767 * 1 - Failed to issue logo off the @vport
9770 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
9773 struct lpfc_hba *phba = vport->phba;
9774 struct lpfc_iocbq *elsiocb;
9778 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
9779 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
9784 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
9785 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
9786 pcmd += sizeof(uint32_t);
9788 /* Fill in LOGO payload */
9789 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
9790 pcmd += sizeof(uint32_t);
9791 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
9793 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
9794 "Issue LOGO npiv did:x%x flg:x%x",
9795 ndlp->nlp_DID, ndlp->nlp_flag, 0);
9797 elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
9798 spin_lock_irq(&ndlp->lock);
9799 ndlp->nlp_flag |= NLP_LOGO_SND;
9800 spin_unlock_irq(&ndlp->lock);
9801 elsiocb->context1 = lpfc_nlp_get(ndlp);
9802 if (!elsiocb->context1)
9804 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
9805 if (rc == IOCB_ERROR)
9812 spin_lock_irq(&ndlp->lock);
9813 ndlp->nlp_flag &= ~NLP_LOGO_SND;
9814 spin_unlock_irq(&ndlp->lock);
9815 lpfc_els_free_iocb(phba, elsiocb);
9820 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
9821 * @t: timer context used to obtain the lpfc hba.
9823 * This routine is invoked by the fabric iocb block timer after
9824 * timeout. It posts the fabric iocb block timeout event by setting the
9825 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
9826 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
9827 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
9828 * posted event WORKER_FABRIC_BLOCK_TMO.
9831 lpfc_fabric_block_timeout(struct timer_list *t)
9833 struct lpfc_hba *phba = from_timer(phba, t, fabric_block_timer);
9834 unsigned long iflags;
9835 uint32_t tmo_posted;
9837 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
9838 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
9840 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
9841 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
9844 lpfc_worker_wake_up(phba);
9849 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
9850 * @phba: pointer to lpfc hba data structure.
9852 * This routine issues one fabric iocb from the driver internal list to
9853 * the HBA. It first checks whether it's ready to issue one fabric iocb to
9854 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
9855 * remove one pending fabric iocb from the driver internal list and invokes
9856 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
9859 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
9861 struct lpfc_iocbq *iocb;
9862 unsigned long iflags;
9868 spin_lock_irqsave(&phba->hbalock, iflags);
9869 /* Post any pending iocb to the SLI layer */
9870 if (atomic_read(&phba->fabric_iocb_count) == 0) {
9871 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
9874 /* Increment fabric iocb count to hold the position */
9875 atomic_inc(&phba->fabric_iocb_count);
9877 spin_unlock_irqrestore(&phba->hbalock, iflags);
9879 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
9880 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
9881 iocb->iocb_flag |= LPFC_IO_FABRIC;
9883 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
9884 "Fabric sched1: ste:x%x",
9885 iocb->vport->port_state, 0, 0);
9887 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
9889 if (ret == IOCB_ERROR) {
9890 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
9891 iocb->fabric_iocb_cmpl = NULL;
9892 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
9894 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
9895 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
9896 iocb->iocb_cmpl(phba, iocb, iocb);
9898 atomic_dec(&phba->fabric_iocb_count);
9905 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
9906 * @phba: pointer to lpfc hba data structure.
9908 * This routine unblocks the issuing fabric iocb command. The function
9909 * will clear the fabric iocb block bit and then invoke the routine
9910 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
9911 * from the driver internal fabric iocb list.
9914 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
9916 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
9918 lpfc_resume_fabric_iocbs(phba);
9923 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
9924 * @phba: pointer to lpfc hba data structure.
9926 * This routine blocks the issuing fabric iocb for a specified amount of
9927 * time (currently 100 ms). This is done by set the fabric iocb block bit
9928 * and set up a timeout timer for 100ms. When the block bit is set, no more
9929 * fabric iocb will be issued out of the HBA.
9932 lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
9936 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
9937 /* Start a timer to unblock fabric iocbs after 100ms */
9939 mod_timer(&phba->fabric_block_timer,
9940 jiffies + msecs_to_jiffies(100));
9946 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
9947 * @phba: pointer to lpfc hba data structure.
9948 * @cmdiocb: pointer to lpfc command iocb data structure.
9949 * @rspiocb: pointer to lpfc response iocb data structure.
9951 * This routine is the callback function that is put to the fabric iocb's
9952 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
9953 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
9954 * function first restores and invokes the original iocb's callback function
9955 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
9956 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
9959 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9960 struct lpfc_iocbq *rspiocb)
9964 BUG_ON((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC);
9966 switch (rspiocb->iocb.ulpStatus) {
9967 case IOSTAT_NPORT_RJT:
9968 case IOSTAT_FABRIC_RJT:
9969 if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
9970 lpfc_block_fabric_iocbs(phba);
9974 case IOSTAT_NPORT_BSY:
9975 case IOSTAT_FABRIC_BSY:
9976 lpfc_block_fabric_iocbs(phba);
9980 stat.un.lsRjtError =
9981 be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
9982 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
9983 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
9984 lpfc_block_fabric_iocbs(phba);
9988 BUG_ON(atomic_read(&phba->fabric_iocb_count) == 0);
9990 cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
9991 cmdiocb->fabric_iocb_cmpl = NULL;
9992 cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
9993 cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
9995 atomic_dec(&phba->fabric_iocb_count);
9996 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
9997 /* Post any pending iocbs to HBA */
9998 lpfc_resume_fabric_iocbs(phba);
10003 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
10004 * @phba: pointer to lpfc hba data structure.
10005 * @iocb: pointer to lpfc command iocb data structure.
10007 * This routine is used as the top-level API for issuing a fabric iocb command
10008 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
10009 * function makes sure that only one fabric bound iocb will be outstanding at
10010 * any given time. As such, this function will first check to see whether there
10011 * is already an outstanding fabric iocb on the wire. If so, it will put the
10012 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
10013 * issued later. Otherwise, it will issue the iocb on the wire and update the
10014 * fabric iocb count it indicate that there is one fabric iocb on the wire.
10016 * Note, this implementation has a potential sending out fabric IOCBs out of
10017 * order. The problem is caused by the construction of the "ready" boolen does
10018 * not include the condition that the internal fabric IOCB list is empty. As
10019 * such, it is possible a fabric IOCB issued by this routine might be "jump"
10020 * ahead of the fabric IOCBs in the internal list.
10023 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
10024 * IOCB_ERROR - failed to issue fabric iocb
10027 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
10029 unsigned long iflags;
10033 BUG_ON(atomic_read(&phba->fabric_iocb_count) > 1);
10035 spin_lock_irqsave(&phba->hbalock, iflags);
10036 ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
10037 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
10040 /* Increment fabric iocb count to hold the position */
10041 atomic_inc(&phba->fabric_iocb_count);
10042 spin_unlock_irqrestore(&phba->hbalock, iflags);
10044 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
10045 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
10046 iocb->iocb_flag |= LPFC_IO_FABRIC;
10048 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
10049 "Fabric sched2: ste:x%x",
10050 iocb->vport->port_state, 0, 0);
10052 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
10054 if (ret == IOCB_ERROR) {
10055 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
10056 iocb->fabric_iocb_cmpl = NULL;
10057 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
10058 atomic_dec(&phba->fabric_iocb_count);
10061 spin_lock_irqsave(&phba->hbalock, iflags);
10062 list_add_tail(&iocb->list, &phba->fabric_iocb_list);
10063 spin_unlock_irqrestore(&phba->hbalock, iflags);
10064 ret = IOCB_SUCCESS;
10070 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
10071 * @vport: pointer to a virtual N_Port data structure.
10073 * This routine aborts all the IOCBs associated with a @vport from the
10074 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
10075 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
10076 * list, removes each IOCB associated with the @vport off the list, set the
10077 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
10078 * associated with the IOCB.
10080 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
10082 LIST_HEAD(completions);
10083 struct lpfc_hba *phba = vport->phba;
10084 struct lpfc_iocbq *tmp_iocb, *piocb;
10086 spin_lock_irq(&phba->hbalock);
10087 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
10090 if (piocb->vport != vport)
10093 list_move_tail(&piocb->list, &completions);
10095 spin_unlock_irq(&phba->hbalock);
10097 /* Cancel all the IOCBs from the completions list */
10098 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10099 IOERR_SLI_ABORTED);
10103 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
10104 * @ndlp: pointer to a node-list data structure.
10106 * This routine aborts all the IOCBs associated with an @ndlp from the
10107 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
10108 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
10109 * list, removes each IOCB associated with the @ndlp off the list, set the
10110 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
10111 * associated with the IOCB.
10113 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
10115 LIST_HEAD(completions);
10116 struct lpfc_hba *phba = ndlp->phba;
10117 struct lpfc_iocbq *tmp_iocb, *piocb;
10118 struct lpfc_sli_ring *pring;
10120 pring = lpfc_phba_elsring(phba);
10122 if (unlikely(!pring))
10125 spin_lock_irq(&phba->hbalock);
10126 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
10128 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
10130 list_move_tail(&piocb->list, &completions);
10133 spin_unlock_irq(&phba->hbalock);
10135 /* Cancel all the IOCBs from the completions list */
10136 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10137 IOERR_SLI_ABORTED);
10141 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
10142 * @phba: pointer to lpfc hba data structure.
10144 * This routine aborts all the IOCBs currently on the driver internal
10145 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
10146 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
10147 * list, removes IOCBs off the list, set the status feild to
10148 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
10151 void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
10153 LIST_HEAD(completions);
10155 spin_lock_irq(&phba->hbalock);
10156 list_splice_init(&phba->fabric_iocb_list, &completions);
10157 spin_unlock_irq(&phba->hbalock);
10159 /* Cancel all the IOCBs from the completions list */
10160 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10161 IOERR_SLI_ABORTED);
10165 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
10166 * @vport: pointer to lpfc vport data structure.
10168 * This routine is invoked by the vport cleanup for deletions and the cleanup
10169 * for an ndlp on removal.
10172 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
10174 struct lpfc_hba *phba = vport->phba;
10175 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
10176 unsigned long iflag = 0;
10178 spin_lock_irqsave(&phba->hbalock, iflag);
10179 spin_lock(&phba->sli4_hba.sgl_list_lock);
10180 list_for_each_entry_safe(sglq_entry, sglq_next,
10181 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
10182 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) {
10183 lpfc_nlp_put(sglq_entry->ndlp);
10184 sglq_entry->ndlp = NULL;
10187 spin_unlock(&phba->sli4_hba.sgl_list_lock);
10188 spin_unlock_irqrestore(&phba->hbalock, iflag);
10193 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
10194 * @phba: pointer to lpfc hba data structure.
10195 * @axri: pointer to the els xri abort wcqe structure.
10197 * This routine is invoked by the worker thread to process a SLI4 slow-path
10201 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
10202 struct sli4_wcqe_xri_aborted *axri)
10204 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
10205 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
10208 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
10209 unsigned long iflag = 0;
10210 struct lpfc_nodelist *ndlp;
10211 struct lpfc_sli_ring *pring;
10213 pring = lpfc_phba_elsring(phba);
10215 spin_lock_irqsave(&phba->hbalock, iflag);
10216 spin_lock(&phba->sli4_hba.sgl_list_lock);
10217 list_for_each_entry_safe(sglq_entry, sglq_next,
10218 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
10219 if (sglq_entry->sli4_xritag == xri) {
10220 list_del(&sglq_entry->list);
10221 ndlp = sglq_entry->ndlp;
10222 sglq_entry->ndlp = NULL;
10223 list_add_tail(&sglq_entry->list,
10224 &phba->sli4_hba.lpfc_els_sgl_list);
10225 sglq_entry->state = SGL_FREED;
10226 spin_unlock(&phba->sli4_hba.sgl_list_lock);
10227 spin_unlock_irqrestore(&phba->hbalock, iflag);
10230 lpfc_set_rrq_active(phba, ndlp,
10231 sglq_entry->sli4_lxritag,
10233 lpfc_nlp_put(ndlp);
10236 /* Check if TXQ queue needs to be serviced */
10237 if (pring && !list_empty(&pring->txq))
10238 lpfc_worker_wake_up(phba);
10242 spin_unlock(&phba->sli4_hba.sgl_list_lock);
10243 lxri = lpfc_sli4_xri_inrange(phba, xri);
10244 if (lxri == NO_XRI) {
10245 spin_unlock_irqrestore(&phba->hbalock, iflag);
10248 spin_lock(&phba->sli4_hba.sgl_list_lock);
10249 sglq_entry = __lpfc_get_active_sglq(phba, lxri);
10250 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
10251 spin_unlock(&phba->sli4_hba.sgl_list_lock);
10252 spin_unlock_irqrestore(&phba->hbalock, iflag);
10255 sglq_entry->state = SGL_XRI_ABORTED;
10256 spin_unlock(&phba->sli4_hba.sgl_list_lock);
10257 spin_unlock_irqrestore(&phba->hbalock, iflag);
10261 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
10262 * @vport: pointer to virtual port object.
10263 * @ndlp: nodelist pointer for the impacted node.
10265 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
10266 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
10267 * the driver is required to send a LOGO to the remote node before it
10268 * attempts to recover its login to the remote node.
10271 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
10272 struct lpfc_nodelist *ndlp)
10274 struct Scsi_Host *shost;
10275 struct lpfc_hba *phba;
10276 unsigned long flags = 0;
10278 shost = lpfc_shost_from_vport(vport);
10279 phba = vport->phba;
10280 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
10281 lpfc_printf_log(phba, KERN_INFO,
10282 LOG_SLI, "3093 No rport recovery needed. "
10283 "rport in state 0x%x\n", ndlp->nlp_state);
10286 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10287 "3094 Start rport recovery on shost id 0x%x "
10288 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
10290 shost->host_no, ndlp->nlp_DID,
10291 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
10294 * The rport is not responding. Remove the FCP-2 flag to prevent
10295 * an ADISC in the follow-up recovery code.
10297 spin_lock_irqsave(&ndlp->lock, flags);
10298 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
10299 ndlp->nlp_flag |= NLP_ISSUE_LOGO;
10300 spin_unlock_irqrestore(&ndlp->lock, flags);
10301 lpfc_unreg_rpi(vport, ndlp);