1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2023 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>
28 #include <linux/delay.h>
30 #include <scsi/scsi.h>
31 #include <scsi/scsi_device.h>
32 #include <scsi/scsi_host.h>
33 #include <scsi/scsi_transport_fc.h>
34 #include <uapi/scsi/fc/fc_fs.h>
35 #include <uapi/scsi/fc/fc_els.h>
40 #include "lpfc_sli4.h"
42 #include "lpfc_disc.h"
43 #include "lpfc_scsi.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_crtn.h"
47 #include "lpfc_vport.h"
48 #include "lpfc_debugfs.h"
50 static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
52 static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *,
54 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport);
55 static int lpfc_issue_els_fdisc(struct lpfc_vport *vport,
56 struct lpfc_nodelist *ndlp, uint8_t retry);
57 static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba,
58 struct lpfc_iocbq *iocb);
59 static void lpfc_cmpl_els_edc(struct lpfc_hba *phba,
60 struct lpfc_iocbq *cmdiocb,
61 struct lpfc_iocbq *rspiocb);
62 static void lpfc_cmpl_els_uvem(struct lpfc_hba *, struct lpfc_iocbq *,
65 static int lpfc_max_els_tries = 3;
67 static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport);
68 static void lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max);
69 static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid);
72 * lpfc_els_chk_latt - Check host link attention event for a vport
73 * @vport: pointer to a host virtual N_Port data structure.
75 * This routine checks whether there is an outstanding host link
76 * attention event during the discovery process with the @vport. It is done
77 * by reading the HBA's Host Attention (HA) register. If there is any host
78 * link attention events during this @vport's discovery process, the @vport
79 * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
80 * be issued if the link state is not already in host link cleared state,
81 * and a return code shall indicate whether the host link attention event
84 * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
85 * state in LPFC_VPORT_READY, the request for checking host link attention
86 * event will be ignored and a return code shall indicate no host link
87 * attention event had happened.
90 * 0 - no host link attention event happened
91 * 1 - host link attention event happened
94 lpfc_els_chk_latt(struct lpfc_vport *vport)
96 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
97 struct lpfc_hba *phba = vport->phba;
100 if (vport->port_state >= LPFC_VPORT_READY ||
101 phba->link_state == LPFC_LINK_DOWN ||
102 phba->sli_rev > LPFC_SLI_REV3)
105 /* Read the HBA Host Attention Register */
106 if (lpfc_readl(phba->HAregaddr, &ha_copy))
109 if (!(ha_copy & HA_LATT))
112 /* Pending Link Event during Discovery */
113 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
114 "0237 Pending Link Event during "
115 "Discovery: State x%x\n",
116 phba->pport->port_state);
118 /* CLEAR_LA should re-enable link attention events and
119 * we should then immediately take a LATT event. The
120 * LATT processing should call lpfc_linkdown() which
121 * will cleanup any left over in-progress discovery
124 spin_lock_irq(shost->host_lock);
125 vport->fc_flag |= FC_ABORT_DISCOVERY;
126 spin_unlock_irq(shost->host_lock);
128 if (phba->link_state != LPFC_CLEAR_LA)
129 lpfc_issue_clear_la(phba, vport);
135 * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure
136 * @vport: pointer to a host virtual N_Port data structure.
137 * @expect_rsp: flag indicating whether response is expected.
138 * @cmd_size: size of the ELS command.
139 * @retry: number of retries to the command when it fails.
140 * @ndlp: pointer to a node-list data structure.
141 * @did: destination identifier.
142 * @elscmd: the ELS command code.
144 * This routine is used for allocating a lpfc-IOCB data structure from
145 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
146 * passed into the routine for discovery state machine to issue an Extended
147 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
148 * and preparation routine that is used by all the discovery state machine
149 * routines and the ELS command-specific fields will be later set up by
150 * the individual discovery machine routines after calling this routine
151 * allocating and preparing a generic IOCB data structure. It fills in the
152 * Buffer Descriptor Entries (BDEs), allocates buffers for both command
153 * payload and response payload (if expected). The reference count on the
154 * ndlp is incremented by 1 and the reference to the ndlp is put into
155 * ndlp of the IOCB data structure for this IOCB to hold the ndlp
156 * reference for the command's callback function to access later.
159 * Pointer to the newly allocated/prepared els iocb data structure
160 * NULL - when els iocb data structure allocation/preparation failed
163 lpfc_prep_els_iocb(struct lpfc_vport *vport, u8 expect_rsp,
164 u16 cmd_size, u8 retry,
165 struct lpfc_nodelist *ndlp, u32 did,
168 struct lpfc_hba *phba = vport->phba;
169 struct lpfc_iocbq *elsiocb;
170 struct lpfc_dmabuf *pcmd, *prsp, *pbuflist, *bmp;
171 struct ulp_bde64_le *bpl;
174 if (!lpfc_is_link_up(phba))
177 /* Allocate buffer for command iocb */
178 elsiocb = lpfc_sli_get_iocbq(phba);
183 * If this command is for fabric controller and HBA running
184 * in FIP mode send FLOGI, FDISC and LOGO as FIP frames.
186 if ((did == Fabric_DID) &&
187 (phba->hba_flag & HBA_FIP_SUPPORT) &&
188 ((elscmd == ELS_CMD_FLOGI) ||
189 (elscmd == ELS_CMD_FDISC) ||
190 (elscmd == ELS_CMD_LOGO)))
194 ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT)
195 & LPFC_FIP_ELS_ID_MASK);
199 ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT)
200 & LPFC_FIP_ELS_ID_MASK);
204 ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT)
205 & LPFC_FIP_ELS_ID_MASK);
209 elsiocb->cmd_flag &= ~LPFC_FIP_ELS_ID_MASK;
211 /* fill in BDEs for command */
212 /* Allocate buffer for command payload */
213 pcmd = kmalloc(sizeof(*pcmd), GFP_KERNEL);
215 pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
216 if (!pcmd || !pcmd->virt)
217 goto els_iocb_free_pcmb_exit;
219 INIT_LIST_HEAD(&pcmd->list);
221 /* Allocate buffer for response payload */
223 prsp = kmalloc(sizeof(*prsp), GFP_KERNEL);
225 prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
227 if (!prsp || !prsp->virt)
228 goto els_iocb_free_prsp_exit;
229 INIT_LIST_HEAD(&prsp->list);
234 /* Allocate buffer for Buffer ptr list */
235 pbuflist = kmalloc(sizeof(*pbuflist), GFP_KERNEL);
237 pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
239 if (!pbuflist || !pbuflist->virt)
240 goto els_iocb_free_pbuf_exit;
242 INIT_LIST_HEAD(&pbuflist->list);
247 timeout = FF_DEF_RATOV * 2;
250 timeout = phba->fc_ratov;
253 timeout = phba->fc_ratov * 2;
256 /* Fill SGE for the num bde count */
257 elsiocb->num_bdes = 2;
260 if (phba->sli_rev == LPFC_SLI_REV4)
265 lpfc_sli_prep_els_req_rsp(phba, elsiocb, vport, bmp, cmd_size, did,
266 elscmd, timeout, expect_rsp);
268 bpl = (struct ulp_bde64_le *)pbuflist->virt;
269 bpl->addr_low = cpu_to_le32(putPaddrLow(pcmd->phys));
270 bpl->addr_high = cpu_to_le32(putPaddrHigh(pcmd->phys));
271 bpl->type_size = cpu_to_le32(cmd_size);
272 bpl->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64);
276 bpl->addr_low = cpu_to_le32(putPaddrLow(prsp->phys));
277 bpl->addr_high = cpu_to_le32(putPaddrHigh(prsp->phys));
278 bpl->type_size = cpu_to_le32(FCELSSIZE);
279 bpl->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64);
282 elsiocb->cmd_dmabuf = pcmd;
283 elsiocb->bpl_dmabuf = pbuflist;
284 elsiocb->retry = retry;
285 elsiocb->vport = vport;
286 elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT;
289 list_add(&prsp->list, &pcmd->list);
291 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
292 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
293 "0116 Xmit ELS command x%x to remote "
294 "NPORT x%x I/O tag: x%x, port state:x%x "
295 "rpi x%x fc_flag:x%x\n",
296 elscmd, did, elsiocb->iotag,
297 vport->port_state, ndlp->nlp_rpi,
300 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
301 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
302 "0117 Xmit ELS response x%x to remote "
303 "NPORT x%x I/O tag: x%x, size: x%x "
304 "port_state x%x rpi x%x fc_flag x%x\n",
305 elscmd, ndlp->nlp_DID, elsiocb->iotag,
306 cmd_size, vport->port_state,
307 ndlp->nlp_rpi, vport->fc_flag);
312 els_iocb_free_pbuf_exit:
314 lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
317 els_iocb_free_prsp_exit:
318 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
321 els_iocb_free_pcmb_exit:
323 lpfc_sli_release_iocbq(phba, elsiocb);
328 * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport
329 * @vport: pointer to a host virtual N_Port data structure.
331 * This routine issues a fabric registration login for a @vport. An
332 * active ndlp node with Fabric_DID must already exist for this @vport.
333 * The routine invokes two mailbox commands to carry out fabric registration
334 * login through the HBA firmware: the first mailbox command requests the
335 * HBA to perform link configuration for the @vport; and the second mailbox
336 * command requests the HBA to perform the actual fabric registration login
340 * 0 - successfully issued fabric registration login for @vport
341 * -ENXIO -- failed to issue fabric registration login for @vport
344 lpfc_issue_fabric_reglogin(struct lpfc_vport *vport)
346 struct lpfc_hba *phba = vport->phba;
348 struct lpfc_nodelist *ndlp;
349 struct serv_parm *sp;
353 sp = &phba->fc_fabparam;
354 ndlp = lpfc_findnode_did(vport, Fabric_DID);
360 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
366 vport->port_state = LPFC_FABRIC_CFG_LINK;
367 lpfc_config_link(phba, mbox);
368 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
371 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
372 if (rc == MBX_NOT_FINISHED) {
377 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
382 rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox,
389 mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
391 /* increment the reference count on ndlp to hold reference
392 * for the callback routine.
394 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
395 if (!mbox->ctx_ndlp) {
400 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
401 if (rc == MBX_NOT_FINISHED) {
403 goto fail_issue_reg_login;
408 fail_issue_reg_login:
409 /* decrement the reference count on ndlp just incremented
410 * for the failed mbox command.
414 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
416 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
417 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
418 "0249 Cannot issue Register Fabric login: Err %d\n",
424 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
425 * @vport: pointer to a host virtual N_Port data structure.
427 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
428 * the @vport. This mailbox command is necessary for SLI4 port only.
431 * 0 - successfully issued REG_VFI for @vport
432 * A failure code otherwise.
435 lpfc_issue_reg_vfi(struct lpfc_vport *vport)
437 struct lpfc_hba *phba = vport->phba;
438 LPFC_MBOXQ_t *mboxq = NULL;
439 struct lpfc_nodelist *ndlp;
440 struct lpfc_dmabuf *dmabuf = NULL;
443 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */
444 if ((phba->sli_rev == LPFC_SLI_REV4) &&
445 !(phba->link_flag & LS_LOOPBACK_MODE) &&
446 !(vport->fc_flag & FC_PT2PT)) {
447 ndlp = lpfc_findnode_did(vport, Fabric_DID);
454 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
460 /* Supply CSP's only if we are fabric connect or pt-to-pt connect */
461 if ((vport->fc_flag & FC_FABRIC) || (vport->fc_flag & FC_PT2PT)) {
462 rc = lpfc_mbox_rsrc_prep(phba, mboxq);
467 dmabuf = mboxq->ctx_buf;
468 memcpy(dmabuf->virt, &phba->fc_fabparam,
469 sizeof(struct serv_parm));
472 vport->port_state = LPFC_FABRIC_CFG_LINK;
474 lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
475 /* lpfc_reg_vfi memsets the mailbox. Restore the ctx_buf. */
476 mboxq->ctx_buf = dmabuf;
478 lpfc_reg_vfi(mboxq, vport, 0);
481 mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi;
482 mboxq->vport = vport;
483 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
484 if (rc == MBX_NOT_FINISHED) {
491 lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED);
493 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
494 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
495 "0289 Issue Register VFI failed: Err %d\n", rc);
500 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
501 * @vport: pointer to a host virtual N_Port data structure.
503 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
504 * the @vport. This mailbox command is necessary for SLI4 port only.
507 * 0 - successfully issued REG_VFI for @vport
508 * A failure code otherwise.
511 lpfc_issue_unreg_vfi(struct lpfc_vport *vport)
513 struct lpfc_hba *phba = vport->phba;
514 struct Scsi_Host *shost;
518 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
520 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
521 "2556 UNREG_VFI mbox allocation failed"
522 "HBA state x%x\n", phba->pport->port_state);
526 lpfc_unreg_vfi(mboxq, vport);
527 mboxq->vport = vport;
528 mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl;
530 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
531 if (rc == MBX_NOT_FINISHED) {
532 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
533 "2557 UNREG_VFI issue mbox failed rc x%x "
535 rc, phba->pport->port_state);
536 mempool_free(mboxq, phba->mbox_mem_pool);
540 shost = lpfc_shost_from_vport(vport);
541 spin_lock_irq(shost->host_lock);
542 vport->fc_flag &= ~FC_VFI_REGISTERED;
543 spin_unlock_irq(shost->host_lock);
548 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
549 * @vport: pointer to a host virtual N_Port data structure.
550 * @sp: pointer to service parameter data structure.
552 * This routine is called from FLOGI/FDISC completion handler functions.
553 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
554 * node nodename is changed in the completion service parameter else return
555 * 0. This function also set flag in the vport data structure to delay
556 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
557 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
558 * node nodename is changed in the completion service parameter.
561 * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
562 * 1 - FCID or Fabric Nodename or Fabric portname is changed.
566 lpfc_check_clean_addr_bit(struct lpfc_vport *vport,
567 struct serv_parm *sp)
569 struct lpfc_hba *phba = vport->phba;
570 uint8_t fabric_param_changed = 0;
571 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
573 if ((vport->fc_prevDID != vport->fc_myDID) ||
574 memcmp(&vport->fabric_portname, &sp->portName,
575 sizeof(struct lpfc_name)) ||
576 memcmp(&vport->fabric_nodename, &sp->nodeName,
577 sizeof(struct lpfc_name)) ||
578 (vport->vport_flag & FAWWPN_PARAM_CHG)) {
579 fabric_param_changed = 1;
580 vport->vport_flag &= ~FAWWPN_PARAM_CHG;
583 * Word 1 Bit 31 in common service parameter is overloaded.
584 * Word 1 Bit 31 in FLOGI request is multiple NPort request
585 * Word 1 Bit 31 in FLOGI response is clean address bit
587 * If fabric parameter is changed and clean address bit is
588 * cleared delay nport discovery if
589 * - vport->fc_prevDID != 0 (not initial discovery) OR
590 * - lpfc_delay_discovery module parameter is set.
592 if (fabric_param_changed && !sp->cmn.clean_address_bit &&
593 (vport->fc_prevDID || phba->cfg_delay_discovery)) {
594 spin_lock_irq(shost->host_lock);
595 vport->fc_flag |= FC_DISC_DELAYED;
596 spin_unlock_irq(shost->host_lock);
599 return fabric_param_changed;
604 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
605 * @vport: pointer to a host virtual N_Port data structure.
606 * @ndlp: pointer to a node-list data structure.
607 * @sp: pointer to service parameter data structure.
608 * @ulp_word4: command response value
610 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
611 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
612 * port in a fabric topology. It properly sets up the parameters to the @ndlp
613 * from the IOCB response. It also check the newly assigned N_Port ID to the
614 * @vport against the previously assigned N_Port ID. If it is different from
615 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
616 * is invoked on all the remaining nodes with the @vport to unregister the
617 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
618 * is invoked to register login to the fabric.
621 * 0 - Success (currently, always return 0)
624 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
625 struct serv_parm *sp, uint32_t ulp_word4)
627 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
628 struct lpfc_hba *phba = vport->phba;
629 struct lpfc_nodelist *np;
630 struct lpfc_nodelist *next_np;
631 uint8_t fabric_param_changed;
633 spin_lock_irq(shost->host_lock);
634 vport->fc_flag |= FC_FABRIC;
635 spin_unlock_irq(shost->host_lock);
637 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
638 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
639 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
641 phba->fc_edtovResol = sp->cmn.edtovResolution;
642 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
644 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
645 spin_lock_irq(shost->host_lock);
646 vport->fc_flag |= FC_PUBLIC_LOOP;
647 spin_unlock_irq(shost->host_lock);
650 vport->fc_myDID = ulp_word4 & Mask_DID;
651 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
652 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name));
653 ndlp->nlp_class_sup = 0;
654 if (sp->cls1.classValid)
655 ndlp->nlp_class_sup |= FC_COS_CLASS1;
656 if (sp->cls2.classValid)
657 ndlp->nlp_class_sup |= FC_COS_CLASS2;
658 if (sp->cls3.classValid)
659 ndlp->nlp_class_sup |= FC_COS_CLASS3;
660 if (sp->cls4.classValid)
661 ndlp->nlp_class_sup |= FC_COS_CLASS4;
662 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
663 sp->cmn.bbRcvSizeLsb;
665 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
666 if (fabric_param_changed) {
667 /* Reset FDMI attribute masks based on config parameter */
668 if (phba->cfg_enable_SmartSAN ||
669 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
670 /* Setup appropriate attribute masks */
671 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
672 if (phba->cfg_enable_SmartSAN)
673 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
675 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
677 vport->fdmi_hba_mask = 0;
678 vport->fdmi_port_mask = 0;
682 memcpy(&vport->fabric_portname, &sp->portName,
683 sizeof(struct lpfc_name));
684 memcpy(&vport->fabric_nodename, &sp->nodeName,
685 sizeof(struct lpfc_name));
686 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
688 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
689 if (sp->cmn.response_multiple_NPort) {
690 lpfc_printf_vlog(vport, KERN_WARNING,
692 "1816 FLOGI NPIV supported, "
693 "response data 0x%x\n",
694 sp->cmn.response_multiple_NPort);
695 spin_lock_irq(&phba->hbalock);
696 phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
697 spin_unlock_irq(&phba->hbalock);
699 /* Because we asked f/w for NPIV it still expects us
700 to call reg_vnpid at least for the physical host */
701 lpfc_printf_vlog(vport, KERN_WARNING,
703 "1817 Fabric does not support NPIV "
704 "- configuring single port mode.\n");
705 spin_lock_irq(&phba->hbalock);
706 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
707 spin_unlock_irq(&phba->hbalock);
712 * For FC we need to do some special processing because of the SLI
713 * Port's default settings of the Common Service Parameters.
715 if ((phba->sli_rev == LPFC_SLI_REV4) &&
716 (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) {
717 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
718 if (fabric_param_changed)
719 lpfc_unregister_fcf_prep(phba);
721 /* This should just update the VFI CSPs*/
722 if (vport->fc_flag & FC_VFI_REGISTERED)
723 lpfc_issue_reg_vfi(vport);
726 if (fabric_param_changed &&
727 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
729 /* If our NportID changed, we need to ensure all
730 * remaining NPORTs get unreg_login'ed.
732 list_for_each_entry_safe(np, next_np,
733 &vport->fc_nodes, nlp_listp) {
734 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
735 !(np->nlp_flag & NLP_NPR_ADISC))
737 spin_lock_irq(&np->lock);
738 np->nlp_flag &= ~NLP_NPR_ADISC;
739 spin_unlock_irq(&np->lock);
740 lpfc_unreg_rpi(vport, np);
742 lpfc_cleanup_pending_mbox(vport);
744 if (phba->sli_rev == LPFC_SLI_REV4) {
745 lpfc_sli4_unreg_all_rpis(vport);
746 lpfc_mbx_unreg_vpi(vport);
747 spin_lock_irq(shost->host_lock);
748 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
749 spin_unlock_irq(shost->host_lock);
753 * For SLI3 and SLI4, the VPI needs to be reregistered in
754 * response to this fabric parameter change event.
756 spin_lock_irq(shost->host_lock);
757 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
758 spin_unlock_irq(shost->host_lock);
759 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
760 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
762 * Driver needs to re-reg VPI in order for f/w
763 * to update the MAC address.
765 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
766 lpfc_register_new_vport(phba, vport, ndlp);
770 if (phba->sli_rev < LPFC_SLI_REV4) {
771 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
772 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED &&
773 vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
774 lpfc_register_new_vport(phba, vport, ndlp);
776 lpfc_issue_fabric_reglogin(vport);
778 ndlp->nlp_type |= NLP_FABRIC;
779 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
780 if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) &&
781 (vport->vpi_state & LPFC_VPI_REGISTERED)) {
782 lpfc_start_fdiscs(phba);
783 lpfc_do_scr_ns_plogi(phba, vport);
784 } else if (vport->fc_flag & FC_VFI_REGISTERED)
785 lpfc_issue_init_vpi(vport);
787 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
788 "3135 Need register VFI: (x%x/%x)\n",
789 vport->fc_prevDID, vport->fc_myDID);
790 lpfc_issue_reg_vfi(vport);
797 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
798 * @vport: pointer to a host virtual N_Port data structure.
799 * @ndlp: pointer to a node-list data structure.
800 * @sp: pointer to service parameter data structure.
802 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
803 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
804 * in a point-to-point topology. First, the @vport's N_Port Name is compared
805 * with the received N_Port Name: if the @vport's N_Port Name is greater than
806 * the received N_Port Name lexicographically, this node shall assign local
807 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
808 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
809 * this node shall just wait for the remote node to issue PLOGI and assign
817 lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
818 struct serv_parm *sp)
820 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
821 struct lpfc_hba *phba = vport->phba;
825 spin_lock_irq(shost->host_lock);
826 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
827 vport->fc_flag |= FC_PT2PT;
828 spin_unlock_irq(shost->host_lock);
830 /* If we are pt2pt with another NPort, force NPIV off! */
831 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
833 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
834 if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
835 lpfc_unregister_fcf_prep(phba);
837 spin_lock_irq(shost->host_lock);
838 vport->fc_flag &= ~FC_VFI_REGISTERED;
839 spin_unlock_irq(shost->host_lock);
840 phba->fc_topology_changed = 0;
843 rc = memcmp(&vport->fc_portname, &sp->portName,
844 sizeof(vport->fc_portname));
847 /* This side will initiate the PLOGI */
848 spin_lock_irq(shost->host_lock);
849 vport->fc_flag |= FC_PT2PT_PLOGI;
850 spin_unlock_irq(shost->host_lock);
853 * N_Port ID cannot be 0, set our Id to LocalID
854 * the other side will be RemoteID.
859 vport->fc_myDID = PT2PT_LocalID;
861 /* If not registered with a transport, decrement ndlp reference
862 * count indicating that ndlp can be safely released when other
863 * references are removed.
865 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)))
868 ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
871 * Cannot find existing Fabric ndlp, so allocate a
874 ndlp = lpfc_nlp_init(vport, PT2PT_RemoteID);
879 memcpy(&ndlp->nlp_portname, &sp->portName,
880 sizeof(struct lpfc_name));
881 memcpy(&ndlp->nlp_nodename, &sp->nodeName,
882 sizeof(struct lpfc_name));
883 /* Set state will put ndlp onto node list if not already done */
884 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
885 spin_lock_irq(&ndlp->lock);
886 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
887 spin_unlock_irq(&ndlp->lock);
889 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
893 lpfc_config_link(phba, mbox);
895 mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
897 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
898 if (rc == MBX_NOT_FINISHED) {
899 mempool_free(mbox, phba->mbox_mem_pool);
903 /* This side will wait for the PLOGI. If not registered with
904 * a transport, decrement node reference count indicating that
905 * ndlp can be released when other references are removed.
907 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)))
910 /* Start discovery - this should just do CLEAR_LA */
911 lpfc_disc_start(vport);
920 * lpfc_cmpl_els_flogi - Completion callback function for flogi
921 * @phba: pointer to lpfc hba data structure.
922 * @cmdiocb: pointer to lpfc command iocb data structure.
923 * @rspiocb: pointer to lpfc response iocb data structure.
925 * This routine is the top-level completion callback function for issuing
926 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
927 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
928 * retry has been made (either immediately or delayed with lpfc_els_retry()
929 * returning 1), the command IOCB will be released and function returned.
930 * If the retry attempt has been given up (possibly reach the maximum
931 * number of retries), one additional decrement of ndlp reference shall be
932 * invoked before going out after releasing the command IOCB. This will
933 * actually release the remote node (Note, lpfc_els_free_iocb() will also
934 * invoke one decrement of ndlp reference count). If no error reported in
935 * the IOCB status, the command Port ID field is used to determine whether
936 * this is a point-to-point topology or a fabric topology: if the Port ID
937 * field is assigned, it is a fabric topology; otherwise, it is a
938 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
939 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
940 * specific topology completion conditions.
943 lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
944 struct lpfc_iocbq *rspiocb)
946 struct lpfc_vport *vport = cmdiocb->vport;
947 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
948 struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
950 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp;
951 struct serv_parm *sp;
954 u32 ulp_status, ulp_word4, tmo;
955 bool flogi_in_retry = false;
957 /* Check to see if link went down during discovery */
958 if (lpfc_els_chk_latt(vport)) {
959 /* One additional decrement on node reference count to
960 * trigger the release of the node
962 if (!(ndlp->fc4_xpt_flags & SCSI_XPT_REGD))
967 ulp_status = get_job_ulpstatus(phba, rspiocb);
968 ulp_word4 = get_job_word4(phba, rspiocb);
970 if (phba->sli_rev == LPFC_SLI_REV4) {
971 tmo = get_wqe_tmo(cmdiocb);
973 irsp = &rspiocb->iocb;
974 tmo = irsp->ulpTimeout;
977 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
978 "FLOGI cmpl: status:x%x/x%x state:x%x",
979 ulp_status, ulp_word4,
984 * In case of FIP mode, perform roundrobin FCF failover
985 * due to new FCF discovery
987 if ((phba->hba_flag & HBA_FIP_SUPPORT) &&
988 (phba->fcf.fcf_flag & FCF_DISCOVERY)) {
989 if (phba->link_state < LPFC_LINK_UP)
990 goto stop_rr_fcf_flogi;
991 if ((phba->fcoe_cvl_eventtag_attn ==
992 phba->fcoe_cvl_eventtag) &&
993 (ulp_status == IOSTAT_LOCAL_REJECT) &&
994 ((ulp_word4 & IOERR_PARAM_MASK) ==
996 goto stop_rr_fcf_flogi;
998 phba->fcoe_cvl_eventtag_attn =
999 phba->fcoe_cvl_eventtag;
1000 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
1001 "2611 FLOGI failed on FCF (x%x), "
1002 "status:x%x/x%x, tmo:x%x, perform "
1003 "roundrobin FCF failover\n",
1004 phba->fcf.current_rec.fcf_indx,
1005 ulp_status, ulp_word4, tmo);
1006 lpfc_sli4_set_fcf_flogi_fail(phba,
1007 phba->fcf.current_rec.fcf_indx);
1008 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
1009 rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index);
1016 if (!(ulp_status == IOSTAT_LOCAL_REJECT &&
1017 ((ulp_word4 & IOERR_PARAM_MASK) ==
1018 IOERR_LOOP_OPEN_FAILURE)))
1019 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1020 "2858 FLOGI failure Status:x%x/x%x TMO"
1021 ":x%x Data x%x x%x\n",
1022 ulp_status, ulp_word4, tmo,
1023 phba->hba_flag, phba->fcf.fcf_flag);
1025 /* Check for retry */
1026 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1027 /* Address a timing race with dev_loss. If dev_loss
1028 * is active on this FPort node, put the initial ref
1029 * count back to stop premature node release actions.
1031 lpfc_check_nlp_post_devloss(vport, ndlp);
1032 flogi_in_retry = true;
1036 /* The FLOGI will not be retried. If the FPort node is not
1037 * registered with the SCSI transport, remove the initial
1038 * reference to trigger node release.
1040 if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS) &&
1041 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD))
1044 lpfc_printf_vlog(vport, KERN_WARNING, LOG_TRACE_EVENT,
1045 "0150 FLOGI failure Status:x%x/x%x "
1046 "xri x%x TMO:x%x refcnt %d\n",
1047 ulp_status, ulp_word4, cmdiocb->sli4_xritag,
1048 tmo, kref_read(&ndlp->kref));
1050 /* If this is not a loop open failure, bail out */
1051 if (!(ulp_status == IOSTAT_LOCAL_REJECT &&
1052 ((ulp_word4 & IOERR_PARAM_MASK) ==
1053 IOERR_LOOP_OPEN_FAILURE))) {
1055 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1056 "0100 FLOGI failure Status:x%x/x%x "
1058 ulp_status, ulp_word4, tmo);
1062 /* FLOGI failed, so there is no fabric */
1063 spin_lock_irq(shost->host_lock);
1064 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP |
1066 spin_unlock_irq(shost->host_lock);
1068 /* If private loop, then allow max outstanding els to be
1069 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
1070 * alpa map would take too long otherwise.
1072 if (phba->alpa_map[0] == 0)
1073 vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
1074 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1075 (!(vport->fc_flag & FC_VFI_REGISTERED) ||
1076 (vport->fc_prevDID != vport->fc_myDID) ||
1077 phba->fc_topology_changed)) {
1078 if (vport->fc_flag & FC_VFI_REGISTERED) {
1079 if (phba->fc_topology_changed) {
1080 lpfc_unregister_fcf_prep(phba);
1081 spin_lock_irq(shost->host_lock);
1082 vport->fc_flag &= ~FC_VFI_REGISTERED;
1083 spin_unlock_irq(shost->host_lock);
1084 phba->fc_topology_changed = 0;
1086 lpfc_sli4_unreg_all_rpis(vport);
1090 /* Do not register VFI if the driver aborted FLOGI */
1091 if (!lpfc_error_lost_link(ulp_status, ulp_word4))
1092 lpfc_issue_reg_vfi(vport);
1099 spin_lock_irq(shost->host_lock);
1100 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
1101 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
1102 spin_unlock_irq(shost->host_lock);
1105 * The FLOGI succeeded. Sync the data for the CPU before
1108 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
1111 sp = prsp->virt + sizeof(uint32_t);
1113 /* FLOGI completes successfully */
1114 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1115 "0101 FLOGI completes successfully, I/O tag:x%x "
1116 "xri x%x Data: x%x x%x x%x x%x x%x x%x x%x %d\n",
1117 cmdiocb->iotag, cmdiocb->sli4_xritag,
1118 ulp_word4, sp->cmn.e_d_tov,
1119 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution,
1120 vport->port_state, vport->fc_flag,
1121 sp->cmn.priority_tagging, kref_read(&ndlp->kref));
1123 if (sp->cmn.priority_tagging)
1124 vport->phba->pport->vmid_flag |= (LPFC_VMID_ISSUE_QFPA |
1125 LPFC_VMID_TYPE_PRIO);
1126 /* reinitialize the VMID datastructure before returning */
1127 if (lpfc_is_vmid_enabled(phba))
1128 lpfc_reinit_vmid(vport);
1131 * Address a timing race with dev_loss. If dev_loss is active on
1132 * this FPort node, put the initial ref count back to stop premature
1133 * node release actions.
1135 lpfc_check_nlp_post_devloss(vport, ndlp);
1136 if (vport->port_state == LPFC_FLOGI) {
1138 * If Common Service Parameters indicate Nport
1139 * we are point to point, if Fport we are Fabric.
1142 rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp,
1144 else if (!(phba->hba_flag & HBA_FCOE_MODE))
1145 rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
1147 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1148 "2831 FLOGI response with cleared Fabric "
1149 "bit fcf_index 0x%x "
1150 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
1152 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
1153 phba->fcf.current_rec.fcf_indx,
1154 phba->fcf.current_rec.switch_name[0],
1155 phba->fcf.current_rec.switch_name[1],
1156 phba->fcf.current_rec.switch_name[2],
1157 phba->fcf.current_rec.switch_name[3],
1158 phba->fcf.current_rec.switch_name[4],
1159 phba->fcf.current_rec.switch_name[5],
1160 phba->fcf.current_rec.switch_name[6],
1161 phba->fcf.current_rec.switch_name[7],
1162 phba->fcf.current_rec.fabric_name[0],
1163 phba->fcf.current_rec.fabric_name[1],
1164 phba->fcf.current_rec.fabric_name[2],
1165 phba->fcf.current_rec.fabric_name[3],
1166 phba->fcf.current_rec.fabric_name[4],
1167 phba->fcf.current_rec.fabric_name[5],
1168 phba->fcf.current_rec.fabric_name[6],
1169 phba->fcf.current_rec.fabric_name[7]);
1172 spin_lock_irq(&phba->hbalock);
1173 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1174 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1175 spin_unlock_irq(&phba->hbalock);
1176 phba->fcf.fcf_redisc_attempted = 0; /* reset */
1180 /* Mark the FCF discovery process done */
1181 if (phba->hba_flag & HBA_FIP_SUPPORT)
1182 lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP |
1184 "2769 FLOGI to FCF (x%x) "
1185 "completed successfully\n",
1186 phba->fcf.current_rec.fcf_indx);
1187 spin_lock_irq(&phba->hbalock);
1188 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1189 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1190 spin_unlock_irq(&phba->hbalock);
1191 phba->fcf.fcf_redisc_attempted = 0; /* reset */
1194 } else if (vport->port_state > LPFC_FLOGI &&
1195 vport->fc_flag & FC_PT2PT) {
1197 * In a p2p topology, it is possible that discovery has
1198 * already progressed, and this completion can be ignored.
1199 * Recheck the indicated topology.
1206 spin_lock_irq(&phba->hbalock);
1207 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1208 spin_unlock_irq(&phba->hbalock);
1210 if (!lpfc_error_lost_link(ulp_status, ulp_word4)) {
1211 /* FLOGI failed, so just use loop map to make discovery list */
1212 lpfc_disc_list_loopmap(vport);
1214 /* Start discovery */
1215 lpfc_disc_start(vport);
1216 } else if (((ulp_status != IOSTAT_LOCAL_REJECT) ||
1217 (((ulp_word4 & IOERR_PARAM_MASK) !=
1218 IOERR_SLI_ABORTED) &&
1219 ((ulp_word4 & IOERR_PARAM_MASK) !=
1220 IOERR_SLI_DOWN))) &&
1221 (phba->link_state != LPFC_CLEAR_LA)) {
1222 /* If FLOGI failed enable link interrupt. */
1223 lpfc_issue_clear_la(phba, vport);
1226 if (!flogi_in_retry)
1227 phba->hba_flag &= ~HBA_FLOGI_OUTSTANDING;
1229 lpfc_els_free_iocb(phba, cmdiocb);
1234 * lpfc_cmpl_els_link_down - Completion callback function for ELS command
1235 * aborted during a link down
1236 * @phba: pointer to lpfc hba data structure.
1237 * @cmdiocb: pointer to lpfc command iocb data structure.
1238 * @rspiocb: pointer to lpfc response iocb data structure.
1242 lpfc_cmpl_els_link_down(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1243 struct lpfc_iocbq *rspiocb)
1247 u32 ulp_status, ulp_word4;
1249 pcmd = (uint32_t *)cmdiocb->cmd_dmabuf->virt;
1252 ulp_status = get_job_ulpstatus(phba, rspiocb);
1253 ulp_word4 = get_job_word4(phba, rspiocb);
1255 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
1256 "6445 ELS completes after LINK_DOWN: "
1257 " Status %x/%x cmd x%x flg x%x\n",
1258 ulp_status, ulp_word4, cmd,
1261 if (cmdiocb->cmd_flag & LPFC_IO_FABRIC) {
1262 cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC;
1263 atomic_dec(&phba->fabric_iocb_count);
1265 lpfc_els_free_iocb(phba, cmdiocb);
1269 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1270 * @vport: pointer to a host virtual N_Port data structure.
1271 * @ndlp: pointer to a node-list data structure.
1272 * @retry: number of retries to the command IOCB.
1274 * This routine issues a Fabric Login (FLOGI) Request ELS command
1275 * for a @vport. The initiator service parameters are put into the payload
1276 * of the FLOGI Request IOCB and the top-level callback function pointer
1277 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1278 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1279 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1281 * Note that the ndlp reference count will be incremented by 1 for holding the
1282 * ndlp and the reference to ndlp will be stored into the ndlp field of
1283 * the IOCB for the completion callback function to the FLOGI ELS command.
1286 * 0 - successfully issued flogi iocb for @vport
1287 * 1 - failed to issue flogi iocb for @vport
1290 lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1293 struct lpfc_hba *phba = vport->phba;
1294 struct serv_parm *sp;
1295 union lpfc_wqe128 *wqe = NULL;
1296 IOCB_t *icmd = NULL;
1297 struct lpfc_iocbq *elsiocb;
1298 struct lpfc_iocbq defer_flogi_acc;
1304 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1305 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1306 ndlp->nlp_DID, ELS_CMD_FLOGI);
1311 wqe = &elsiocb->wqe;
1312 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
1313 icmd = &elsiocb->iocb;
1315 /* For FLOGI request, remainder of payload is service parameters */
1316 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
1317 pcmd += sizeof(uint32_t);
1318 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1319 sp = (struct serv_parm *) pcmd;
1321 /* Setup CSPs accordingly for Fabric */
1322 sp->cmn.e_d_tov = 0;
1323 sp->cmn.w2.r_a_tov = 0;
1324 sp->cmn.virtual_fabric_support = 0;
1325 sp->cls1.classValid = 0;
1326 if (sp->cmn.fcphLow < FC_PH3)
1327 sp->cmn.fcphLow = FC_PH3;
1328 if (sp->cmn.fcphHigh < FC_PH3)
1329 sp->cmn.fcphHigh = FC_PH3;
1331 /* Determine if switch supports priority tagging */
1332 if (phba->cfg_vmid_priority_tagging) {
1333 sp->cmn.priority_tagging = 1;
1334 /* lpfc_vmid_host_uuid is combination of wwpn and wwnn */
1335 if (uuid_is_null((uuid_t *)vport->lpfc_vmid_host_uuid)) {
1336 memcpy(vport->lpfc_vmid_host_uuid, phba->wwpn,
1337 sizeof(phba->wwpn));
1338 memcpy(&vport->lpfc_vmid_host_uuid[8], phba->wwnn,
1339 sizeof(phba->wwnn));
1343 if (phba->sli_rev == LPFC_SLI_REV4) {
1344 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1345 LPFC_SLI_INTF_IF_TYPE_0) {
1346 /* FLOGI needs to be 3 for WQE FCFI */
1348 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
1350 /* Set the fcfi to the fcfi we registered with */
1351 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
1355 /* Can't do SLI4 class2 without support sequence coalescing */
1356 sp->cls2.classValid = 0;
1357 sp->cls2.seqDelivery = 0;
1359 /* Historical, setting sequential-delivery bit for SLI3 */
1360 sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0;
1361 sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0;
1362 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
1363 sp->cmn.request_multiple_Nport = 1;
1364 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1368 sp->cmn.request_multiple_Nport = 0;
1371 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
1372 icmd->un.elsreq64.myID = 0;
1373 icmd->un.elsreq64.fl = 1;
1377 tmo = phba->fc_ratov;
1378 phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
1379 lpfc_set_disctmo(vport);
1380 phba->fc_ratov = tmo;
1382 phba->fc_stat.elsXmitFLOGI++;
1383 elsiocb->cmd_cmpl = lpfc_cmpl_els_flogi;
1385 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1386 "Issue FLOGI: opt:x%x",
1387 phba->sli3_options, 0, 0);
1389 elsiocb->ndlp = lpfc_nlp_get(ndlp);
1390 if (!elsiocb->ndlp) {
1391 lpfc_els_free_iocb(phba, elsiocb);
1395 /* Avoid race with FLOGI completion and hba_flags. */
1396 phba->hba_flag |= (HBA_FLOGI_ISSUED | HBA_FLOGI_OUTSTANDING);
1398 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
1399 if (rc == IOCB_ERROR) {
1400 phba->hba_flag &= ~(HBA_FLOGI_ISSUED | HBA_FLOGI_OUTSTANDING);
1401 lpfc_els_free_iocb(phba, elsiocb);
1406 /* Clear external loopback plug detected flag */
1407 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK;
1409 /* Check for a deferred FLOGI ACC condition */
1410 if (phba->defer_flogi_acc_flag) {
1411 /* lookup ndlp for received FLOGI */
1412 ndlp = lpfc_findnode_did(vport, 0);
1416 did = vport->fc_myDID;
1417 vport->fc_myDID = Fabric_DID;
1419 memset(&defer_flogi_acc, 0, sizeof(struct lpfc_iocbq));
1421 if (phba->sli_rev == LPFC_SLI_REV4) {
1422 bf_set(wqe_ctxt_tag,
1423 &defer_flogi_acc.wqe.xmit_els_rsp.wqe_com,
1424 phba->defer_flogi_acc_rx_id);
1426 &defer_flogi_acc.wqe.xmit_els_rsp.wqe_com,
1427 phba->defer_flogi_acc_ox_id);
1429 icmd = &defer_flogi_acc.iocb;
1430 icmd->ulpContext = phba->defer_flogi_acc_rx_id;
1431 icmd->unsli3.rcvsli3.ox_id =
1432 phba->defer_flogi_acc_ox_id;
1435 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1436 "3354 Xmit deferred FLOGI ACC: rx_id: x%x,"
1437 " ox_id: x%x, hba_flag x%x\n",
1438 phba->defer_flogi_acc_rx_id,
1439 phba->defer_flogi_acc_ox_id, phba->hba_flag);
1441 /* Send deferred FLOGI ACC */
1442 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, &defer_flogi_acc,
1445 phba->defer_flogi_acc_flag = false;
1446 vport->fc_myDID = did;
1448 /* Decrement ndlp reference count to indicate the node can be
1449 * released when other references are removed.
1458 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1459 * @phba: pointer to lpfc hba data structure.
1461 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1462 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1463 * list and issues an abort IOCB commond on each outstanding IOCB that
1464 * contains a active Fabric_DID ndlp. Note that this function is to issue
1465 * the abort IOCB command on all the outstanding IOCBs, thus when this
1466 * function returns, it does not guarantee all the IOCBs are actually aborted.
1469 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1472 lpfc_els_abort_flogi(struct lpfc_hba *phba)
1474 struct lpfc_sli_ring *pring;
1475 struct lpfc_iocbq *iocb, *next_iocb;
1476 struct lpfc_nodelist *ndlp;
1479 /* Abort outstanding I/O on NPort <nlp_DID> */
1480 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1481 "0201 Abort outstanding I/O on NPort x%x\n",
1484 pring = lpfc_phba_elsring(phba);
1485 if (unlikely(!pring))
1489 * Check the txcmplq for an iocb that matches the nport the driver is
1492 spin_lock_irq(&phba->hbalock);
1493 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
1494 ulp_command = get_job_cmnd(phba, iocb);
1495 if (ulp_command == CMD_ELS_REQUEST64_CR) {
1497 if (ndlp && ndlp->nlp_DID == Fabric_DID) {
1498 if ((phba->pport->fc_flag & FC_PT2PT) &&
1499 !(phba->pport->fc_flag & FC_PT2PT_PLOGI))
1500 iocb->fabric_cmd_cmpl =
1501 lpfc_ignore_els_cmpl;
1502 lpfc_sli_issue_abort_iotag(phba, pring, iocb,
1507 /* Make sure HBA is alive */
1508 lpfc_issue_hb_tmo(phba);
1510 spin_unlock_irq(&phba->hbalock);
1516 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1517 * @vport: pointer to a host virtual N_Port data structure.
1519 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1520 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1521 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1522 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1523 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1524 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1528 * 0 - failed to issue initial flogi for @vport
1529 * 1 - successfully issued initial flogi for @vport
1532 lpfc_initial_flogi(struct lpfc_vport *vport)
1534 struct lpfc_nodelist *ndlp;
1536 vport->port_state = LPFC_FLOGI;
1537 lpfc_set_disctmo(vport);
1539 /* First look for the Fabric ndlp */
1540 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1542 /* Cannot find existing Fabric ndlp, so allocate a new one */
1543 ndlp = lpfc_nlp_init(vport, Fabric_DID);
1546 /* Set the node type */
1547 ndlp->nlp_type |= NLP_FABRIC;
1549 /* Put ndlp onto node list */
1550 lpfc_enqueue_node(vport, ndlp);
1553 /* Reset the Fabric flag, topology change may have happened */
1554 vport->fc_flag &= ~FC_FABRIC;
1555 if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
1556 /* A node reference should be retained while registered with a
1557 * transport or dev-loss-evt work is pending.
1558 * Otherwise, decrement node reference to trigger release.
1560 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) &&
1561 !(ndlp->nlp_flag & NLP_IN_DEV_LOSS))
1569 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1570 * @vport: pointer to a host virtual N_Port data structure.
1572 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1573 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1574 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1575 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1576 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1577 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1581 * 0 - failed to issue initial fdisc for @vport
1582 * 1 - successfully issued initial fdisc for @vport
1585 lpfc_initial_fdisc(struct lpfc_vport *vport)
1587 struct lpfc_nodelist *ndlp;
1589 /* First look for the Fabric ndlp */
1590 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1592 /* Cannot find existing Fabric ndlp, so allocate a new one */
1593 ndlp = lpfc_nlp_init(vport, Fabric_DID);
1597 /* NPIV is only supported in Fabrics. */
1598 ndlp->nlp_type |= NLP_FABRIC;
1600 /* Put ndlp onto node list */
1601 lpfc_enqueue_node(vport, ndlp);
1604 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
1605 /* A node reference should be retained while registered with a
1606 * transport or dev-loss-evt work is pending.
1607 * Otherwise, decrement node reference to trigger release.
1609 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) &&
1610 !(ndlp->nlp_flag & NLP_IN_DEV_LOSS))
1618 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1619 * @vport: pointer to a host virtual N_Port data structure.
1621 * This routine checks whether there are more remaining Port Logins
1622 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1623 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1624 * to issue ELS PLOGIs up to the configured discover threads with the
1625 * @vport (@vport->cfg_discovery_threads). The function also decrement
1626 * the @vport's num_disc_node by 1 if it is not already 0.
1629 lpfc_more_plogi(struct lpfc_vport *vport)
1631 if (vport->num_disc_nodes)
1632 vport->num_disc_nodes--;
1634 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1635 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1636 "0232 Continue discovery with %d PLOGIs to go "
1637 "Data: x%x x%x x%x\n",
1638 vport->num_disc_nodes, vport->fc_plogi_cnt,
1639 vport->fc_flag, vport->port_state);
1640 /* Check to see if there are more PLOGIs to be sent */
1641 if (vport->fc_flag & FC_NLP_MORE)
1642 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1643 lpfc_els_disc_plogi(vport);
1649 * lpfc_plogi_confirm_nport - Confirm plogi wwpn matches stored ndlp
1650 * @phba: pointer to lpfc hba data structure.
1651 * @prsp: pointer to response IOCB payload.
1652 * @ndlp: pointer to a node-list data structure.
1654 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1655 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1656 * The following cases are considered N_Port confirmed:
1657 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1658 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1659 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1660 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1661 * 1) if there is a node on vport list other than the @ndlp with the same
1662 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1663 * on that node to release the RPI associated with the node; 2) if there is
1664 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1665 * into, a new node shall be allocated (or activated). In either case, the
1666 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1667 * be released and the new_ndlp shall be put on to the vport node list and
1668 * its pointer returned as the confirmed node.
1670 * Note that before the @ndlp got "released", the keepDID from not-matching
1671 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1672 * of the @ndlp. This is because the release of @ndlp is actually to put it
1673 * into an inactive state on the vport node list and the vport node list
1674 * management algorithm does not allow two node with a same DID.
1677 * pointer to the PLOGI N_Port @ndlp
1679 static struct lpfc_nodelist *
1680 lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
1681 struct lpfc_nodelist *ndlp)
1683 struct lpfc_vport *vport = ndlp->vport;
1684 struct lpfc_nodelist *new_ndlp;
1685 struct serv_parm *sp;
1686 uint8_t name[sizeof(struct lpfc_name)];
1687 uint32_t keepDID = 0, keep_nlp_flag = 0;
1688 uint32_t keep_new_nlp_flag = 0;
1689 uint16_t keep_nlp_state;
1690 u32 keep_nlp_fc4_type = 0;
1691 struct lpfc_nvme_rport *keep_nrport = NULL;
1692 unsigned long *active_rrqs_xri_bitmap = NULL;
1694 /* Fabric nodes can have the same WWPN so we don't bother searching
1695 * by WWPN. Just return the ndlp that was given to us.
1697 if (ndlp->nlp_type & NLP_FABRIC)
1700 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
1701 memset(name, 0, sizeof(struct lpfc_name));
1703 /* Now we find out if the NPort we are logging into, matches the WWPN
1704 * we have for that ndlp. If not, we have some work to do.
1706 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
1708 /* return immediately if the WWPN matches ndlp */
1709 if (!new_ndlp || (new_ndlp == ndlp))
1713 * Unregister from backend if not done yet. Could have been skipped
1716 lpfc_nlp_unreg_node(vport, new_ndlp);
1718 if (phba->sli_rev == LPFC_SLI_REV4) {
1719 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
1721 if (active_rrqs_xri_bitmap)
1722 memset(active_rrqs_xri_bitmap, 0,
1723 phba->cfg_rrq_xri_bitmap_sz);
1726 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE,
1727 "3178 PLOGI confirm: ndlp x%x x%x x%x: "
1728 "new_ndlp x%x x%x x%x\n",
1729 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_fc4_type,
1730 (new_ndlp ? new_ndlp->nlp_DID : 0),
1731 (new_ndlp ? new_ndlp->nlp_flag : 0),
1732 (new_ndlp ? new_ndlp->nlp_fc4_type : 0));
1734 keepDID = new_ndlp->nlp_DID;
1736 if (phba->sli_rev == LPFC_SLI_REV4 && active_rrqs_xri_bitmap)
1737 memcpy(active_rrqs_xri_bitmap, new_ndlp->active_rrqs_xri_bitmap,
1738 phba->cfg_rrq_xri_bitmap_sz);
1740 /* At this point in this routine, we know new_ndlp will be
1741 * returned. however, any previous GID_FTs that were done
1742 * would have updated nlp_fc4_type in ndlp, so we must ensure
1743 * new_ndlp has the right value.
1745 if (vport->fc_flag & FC_FABRIC) {
1746 keep_nlp_fc4_type = new_ndlp->nlp_fc4_type;
1747 new_ndlp->nlp_fc4_type = ndlp->nlp_fc4_type;
1750 lpfc_unreg_rpi(vport, new_ndlp);
1751 new_ndlp->nlp_DID = ndlp->nlp_DID;
1752 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
1753 if (phba->sli_rev == LPFC_SLI_REV4)
1754 memcpy(new_ndlp->active_rrqs_xri_bitmap,
1755 ndlp->active_rrqs_xri_bitmap,
1756 phba->cfg_rrq_xri_bitmap_sz);
1758 /* Lock both ndlps */
1759 spin_lock_irq(&ndlp->lock);
1760 spin_lock_irq(&new_ndlp->lock);
1761 keep_new_nlp_flag = new_ndlp->nlp_flag;
1762 keep_nlp_flag = ndlp->nlp_flag;
1763 new_ndlp->nlp_flag = ndlp->nlp_flag;
1765 /* if new_ndlp had NLP_UNREG_INP set, keep it */
1766 if (keep_new_nlp_flag & NLP_UNREG_INP)
1767 new_ndlp->nlp_flag |= NLP_UNREG_INP;
1769 new_ndlp->nlp_flag &= ~NLP_UNREG_INP;
1771 /* if new_ndlp had NLP_RPI_REGISTERED set, keep it */
1772 if (keep_new_nlp_flag & NLP_RPI_REGISTERED)
1773 new_ndlp->nlp_flag |= NLP_RPI_REGISTERED;
1775 new_ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
1778 * Retain the DROPPED flag. This will take care of the init
1779 * refcount when affecting the state change
1781 if (keep_new_nlp_flag & NLP_DROPPED)
1782 new_ndlp->nlp_flag |= NLP_DROPPED;
1784 new_ndlp->nlp_flag &= ~NLP_DROPPED;
1786 ndlp->nlp_flag = keep_new_nlp_flag;
1788 /* if ndlp had NLP_UNREG_INP set, keep it */
1789 if (keep_nlp_flag & NLP_UNREG_INP)
1790 ndlp->nlp_flag |= NLP_UNREG_INP;
1792 ndlp->nlp_flag &= ~NLP_UNREG_INP;
1794 /* if ndlp had NLP_RPI_REGISTERED set, keep it */
1795 if (keep_nlp_flag & NLP_RPI_REGISTERED)
1796 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
1798 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
1801 * Retain the DROPPED flag. This will take care of the init
1802 * refcount when affecting the state change
1804 if (keep_nlp_flag & NLP_DROPPED)
1805 ndlp->nlp_flag |= NLP_DROPPED;
1807 ndlp->nlp_flag &= ~NLP_DROPPED;
1809 spin_unlock_irq(&new_ndlp->lock);
1810 spin_unlock_irq(&ndlp->lock);
1812 /* Set nlp_states accordingly */
1813 keep_nlp_state = new_ndlp->nlp_state;
1814 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
1816 /* interchange the nvme remoteport structs */
1817 keep_nrport = new_ndlp->nrport;
1818 new_ndlp->nrport = ndlp->nrport;
1820 /* Move this back to NPR state */
1821 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
1822 /* The ndlp doesn't have a portname yet, but does have an
1823 * NPort ID. The new_ndlp portname matches the Rport's
1824 * portname. Reinstantiate the new_ndlp and reset the ndlp.
1826 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1827 "3179 PLOGI confirm NEW: %x %x\n",
1828 new_ndlp->nlp_DID, keepDID);
1830 /* Two ndlps cannot have the same did on the nodelist.
1831 * The KeepDID and keep_nlp_fc4_type need to be swapped
1832 * because ndlp is inflight with no WWPN.
1834 ndlp->nlp_DID = keepDID;
1835 ndlp->nlp_fc4_type = keep_nlp_fc4_type;
1836 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
1837 if (phba->sli_rev == LPFC_SLI_REV4 &&
1838 active_rrqs_xri_bitmap)
1839 memcpy(ndlp->active_rrqs_xri_bitmap,
1840 active_rrqs_xri_bitmap,
1841 phba->cfg_rrq_xri_bitmap_sz);
1844 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1845 "3180 PLOGI confirm SWAP: %x %x\n",
1846 new_ndlp->nlp_DID, keepDID);
1848 lpfc_unreg_rpi(vport, ndlp);
1850 /* The ndlp and new_ndlp both have WWPNs but are swapping
1851 * NPort Ids and attributes.
1853 ndlp->nlp_DID = keepDID;
1854 ndlp->nlp_fc4_type = keep_nlp_fc4_type;
1856 if (phba->sli_rev == LPFC_SLI_REV4 &&
1857 active_rrqs_xri_bitmap)
1858 memcpy(ndlp->active_rrqs_xri_bitmap,
1859 active_rrqs_xri_bitmap,
1860 phba->cfg_rrq_xri_bitmap_sz);
1862 /* Since we are switching over to the new_ndlp,
1863 * reset the old ndlp state
1865 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
1866 (ndlp->nlp_state == NLP_STE_MAPPED_NODE))
1867 keep_nlp_state = NLP_STE_NPR_NODE;
1868 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
1869 ndlp->nrport = keep_nrport;
1873 * If ndlp is not associated with any rport we can drop it here else
1874 * let dev_loss_tmo_callbk trigger DEVICE_RM event
1876 if (!ndlp->rport && (ndlp->nlp_state == NLP_STE_NPR_NODE))
1877 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
1879 if (phba->sli_rev == LPFC_SLI_REV4 &&
1880 active_rrqs_xri_bitmap)
1881 mempool_free(active_rrqs_xri_bitmap,
1882 phba->active_rrq_pool);
1884 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE,
1885 "3173 PLOGI confirm exit: new_ndlp x%x x%x x%x\n",
1886 new_ndlp->nlp_DID, new_ndlp->nlp_flag,
1887 new_ndlp->nlp_fc4_type);
1893 * lpfc_end_rscn - Check and handle more rscn for a vport
1894 * @vport: pointer to a host virtual N_Port data structure.
1896 * This routine checks whether more Registration State Change
1897 * Notifications (RSCNs) came in while the discovery state machine was in
1898 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1899 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1900 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1901 * handling the RSCNs.
1904 lpfc_end_rscn(struct lpfc_vport *vport)
1906 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1908 if (vport->fc_flag & FC_RSCN_MODE) {
1910 * Check to see if more RSCNs came in while we were
1911 * processing this one.
1913 if (vport->fc_rscn_id_cnt ||
1914 (vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
1915 lpfc_els_handle_rscn(vport);
1917 spin_lock_irq(shost->host_lock);
1918 vport->fc_flag &= ~FC_RSCN_MODE;
1919 spin_unlock_irq(shost->host_lock);
1925 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1926 * @phba: pointer to lpfc hba data structure.
1927 * @cmdiocb: pointer to lpfc command iocb data structure.
1928 * @rspiocb: pointer to lpfc response iocb data structure.
1930 * This routine will call the clear rrq function to free the rrq and
1931 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1932 * exist then the clear_rrq is still called because the rrq needs to
1937 lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1938 struct lpfc_iocbq *rspiocb)
1940 struct lpfc_vport *vport = cmdiocb->vport;
1941 struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
1942 struct lpfc_node_rrq *rrq;
1943 u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
1944 u32 ulp_word4 = get_job_word4(phba, rspiocb);
1946 /* we pass cmdiocb to state machine which needs rspiocb as well */
1947 rrq = cmdiocb->context_un.rrq;
1948 cmdiocb->rsp_iocb = rspiocb;
1950 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1951 "RRQ cmpl: status:x%x/x%x did:x%x",
1952 ulp_status, ulp_word4,
1953 get_job_els_rsp64_did(phba, cmdiocb));
1956 /* rrq completes to NPort <nlp_DID> */
1957 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1958 "2880 RRQ completes to DID x%x "
1959 "Data: x%x x%x x%x x%x x%x\n",
1960 ndlp->nlp_DID, ulp_status, ulp_word4,
1961 get_wqe_tmo(cmdiocb), rrq->xritag, rrq->rxid);
1964 /* Check for retry */
1965 /* RRQ failed Don't print the vport to vport rjts */
1966 if (ulp_status != IOSTAT_LS_RJT ||
1967 (((ulp_word4) >> 16 != LSRJT_INVALID_CMD) &&
1968 ((ulp_word4) >> 16 != LSRJT_UNABLE_TPC)) ||
1969 (phba)->pport->cfg_log_verbose & LOG_ELS)
1970 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1971 "2881 RRQ failure DID:%06X Status:"
1973 ndlp->nlp_DID, ulp_status,
1977 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1978 lpfc_els_free_iocb(phba, cmdiocb);
1983 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1984 * @phba: pointer to lpfc hba data structure.
1985 * @cmdiocb: pointer to lpfc command iocb data structure.
1986 * @rspiocb: pointer to lpfc response iocb data structure.
1988 * This routine is the completion callback function for issuing the Port
1989 * Login (PLOGI) command. For PLOGI completion, there must be an active
1990 * ndlp on the vport node list that matches the remote node ID from the
1991 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1992 * ignored and command IOCB released. The PLOGI response IOCB status is
1993 * checked for error conditions. If there is error status reported, PLOGI
1994 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1995 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1996 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1997 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1998 * there are additional N_Port nodes with the vport that need to perform
1999 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
2003 lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2004 struct lpfc_iocbq *rspiocb)
2006 struct lpfc_vport *vport = cmdiocb->vport;
2007 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2009 struct lpfc_nodelist *ndlp, *free_ndlp;
2010 struct lpfc_dmabuf *prsp;
2012 struct serv_parm *sp = NULL;
2013 u32 ulp_status, ulp_word4, did, iotag;
2014 bool release_node = false;
2016 /* we pass cmdiocb to state machine which needs rspiocb as well */
2017 cmdiocb->rsp_iocb = rspiocb;
2019 ulp_status = get_job_ulpstatus(phba, rspiocb);
2020 ulp_word4 = get_job_word4(phba, rspiocb);
2021 did = get_job_els_rsp64_did(phba, cmdiocb);
2023 if (phba->sli_rev == LPFC_SLI_REV4) {
2024 iotag = get_wqe_reqtag(cmdiocb);
2026 irsp = &rspiocb->iocb;
2027 iotag = irsp->ulpIoTag;
2030 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2031 "PLOGI cmpl: status:x%x/x%x did:x%x",
2032 ulp_status, ulp_word4, did);
2034 ndlp = lpfc_findnode_did(vport, did);
2036 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
2037 "0136 PLOGI completes to NPort x%x "
2038 "with no ndlp. Data: x%x x%x x%x\n",
2039 did, ulp_status, ulp_word4, iotag);
2043 /* Since ndlp can be freed in the disc state machine, note if this node
2044 * is being used during discovery.
2046 spin_lock_irq(&ndlp->lock);
2047 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
2048 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2049 spin_unlock_irq(&ndlp->lock);
2051 /* PLOGI completes to NPort <nlp_DID> */
2052 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2053 "0102 PLOGI completes to NPort x%06x "
2054 "Data: x%x x%x x%x x%x x%x\n",
2055 ndlp->nlp_DID, ndlp->nlp_fc4_type,
2056 ulp_status, ulp_word4,
2057 disc, vport->num_disc_nodes);
2059 /* Check to see if link went down during discovery */
2060 if (lpfc_els_chk_latt(vport)) {
2061 spin_lock_irq(&ndlp->lock);
2062 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2063 spin_unlock_irq(&ndlp->lock);
2068 /* Check for retry */
2069 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2070 /* ELS command is being retried */
2072 spin_lock_irq(&ndlp->lock);
2073 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2074 spin_unlock_irq(&ndlp->lock);
2078 /* PLOGI failed Don't print the vport to vport rjts */
2079 if (ulp_status != IOSTAT_LS_RJT ||
2080 (((ulp_word4) >> 16 != LSRJT_INVALID_CMD) &&
2081 ((ulp_word4) >> 16 != LSRJT_UNABLE_TPC)) ||
2082 (phba)->pport->cfg_log_verbose & LOG_ELS)
2083 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
2084 "2753 PLOGI failure DID:%06X "
2086 ndlp->nlp_DID, ulp_status,
2089 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2090 if (!lpfc_error_lost_link(ulp_status, ulp_word4))
2091 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2092 NLP_EVT_CMPL_PLOGI);
2094 /* If a PLOGI collision occurred, the node needs to continue
2095 * with the reglogin process.
2097 spin_lock_irq(&ndlp->lock);
2098 if ((ndlp->nlp_flag & (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI)) &&
2099 ndlp->nlp_state == NLP_STE_REG_LOGIN_ISSUE) {
2100 spin_unlock_irq(&ndlp->lock);
2104 /* No PLOGI collision and the node is not registered with the
2105 * scsi or nvme transport. It is no longer an active node. Just
2106 * start the device remove process.
2108 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
2109 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2110 if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS))
2111 release_node = true;
2113 spin_unlock_irq(&ndlp->lock);
2116 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2119 /* Good status, call state machine */
2120 prsp = list_entry(cmdiocb->cmd_dmabuf->list.next,
2121 struct lpfc_dmabuf, list);
2122 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
2124 sp = (struct serv_parm *)((u8 *)prsp->virt +
2127 ndlp->vmid_support = 0;
2128 if ((phba->cfg_vmid_app_header && sp->cmn.app_hdr_support) ||
2129 (phba->cfg_vmid_priority_tagging &&
2130 sp->cmn.priority_tagging)) {
2131 lpfc_printf_log(phba, KERN_DEBUG, LOG_ELS,
2132 "4018 app_hdr_support %d tagging %d DID x%x\n",
2133 sp->cmn.app_hdr_support,
2134 sp->cmn.priority_tagging,
2136 /* if the dest port supports VMID, mark it in ndlp */
2137 ndlp->vmid_support = 1;
2140 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2141 NLP_EVT_CMPL_PLOGI);
2144 if (disc && vport->num_disc_nodes) {
2145 /* Check to see if there are more PLOGIs to be sent */
2146 lpfc_more_plogi(vport);
2148 if (vport->num_disc_nodes == 0) {
2149 spin_lock_irq(shost->host_lock);
2150 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2151 spin_unlock_irq(shost->host_lock);
2153 lpfc_can_disctmo(vport);
2154 lpfc_end_rscn(vport);
2159 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2160 "PLOGI Cmpl PUT: did:x%x refcnt %d",
2161 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
2164 /* Release the reference on the original I/O request. */
2165 free_ndlp = cmdiocb->ndlp;
2167 lpfc_els_free_iocb(phba, cmdiocb);
2168 lpfc_nlp_put(free_ndlp);
2173 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
2174 * @vport: pointer to a host virtual N_Port data structure.
2175 * @did: destination port identifier.
2176 * @retry: number of retries to the command IOCB.
2178 * This routine issues a Port Login (PLOGI) command to a remote N_Port
2179 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
2180 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
2181 * This routine constructs the proper fields of the PLOGI IOCB and invokes
2182 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
2184 * Note that the ndlp reference count will be incremented by 1 for holding
2185 * the ndlp and the reference to ndlp will be stored into the ndlp field
2186 * of the IOCB for the completion callback function to the PLOGI ELS command.
2189 * 0 - Successfully issued a plogi for @vport
2190 * 1 - failed to issue a plogi for @vport
2193 lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
2195 struct lpfc_hba *phba = vport->phba;
2196 struct serv_parm *sp;
2197 struct lpfc_nodelist *ndlp;
2198 struct lpfc_iocbq *elsiocb;
2203 ndlp = lpfc_findnode_did(vport, did);
2207 /* Defer the processing of the issue PLOGI until after the
2208 * outstanding UNREG_RPI mbox command completes, unless we
2209 * are going offline. This logic does not apply for Fabric DIDs
2211 if ((ndlp->nlp_flag & (NLP_IGNR_REG_CMPL | NLP_UNREG_INP)) &&
2212 ((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) &&
2213 !(vport->fc_flag & FC_OFFLINE_MODE)) {
2214 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2215 "4110 Issue PLOGI x%x deferred "
2216 "on NPort x%x rpi x%x flg x%x Data:"
2218 ndlp->nlp_defer_did, ndlp->nlp_DID,
2219 ndlp->nlp_rpi, ndlp->nlp_flag, ndlp);
2221 /* We can only defer 1st PLOGI */
2222 if (ndlp->nlp_defer_did == NLP_EVT_NOTHING_PENDING)
2223 ndlp->nlp_defer_did = did;
2227 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
2228 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
2233 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
2235 /* For PLOGI request, remainder of payload is service parameters */
2236 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
2237 pcmd += sizeof(uint32_t);
2238 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
2239 sp = (struct serv_parm *) pcmd;
2242 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
2243 * to device on remote loops work.
2245 if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP))
2246 sp->cmn.altBbCredit = 1;
2248 if (sp->cmn.fcphLow < FC_PH_4_3)
2249 sp->cmn.fcphLow = FC_PH_4_3;
2251 if (sp->cmn.fcphHigh < FC_PH3)
2252 sp->cmn.fcphHigh = FC_PH3;
2254 sp->cmn.valid_vendor_ver_level = 0;
2255 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
2256 sp->cmn.bbRcvSizeMsb &= 0xF;
2258 /* Check if the destination port supports VMID */
2259 ndlp->vmid_support = 0;
2260 if (vport->vmid_priority_tagging)
2261 sp->cmn.priority_tagging = 1;
2262 else if (phba->cfg_vmid_app_header &&
2263 bf_get(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags))
2264 sp->cmn.app_hdr_support = 1;
2266 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2267 "Issue PLOGI: did:x%x",
2270 /* If our firmware supports this feature, convey that
2271 * information to the target using the vendor specific field.
2273 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) {
2274 sp->cmn.valid_vendor_ver_level = 1;
2275 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID);
2276 sp->un.vv.flags = cpu_to_be32(LPFC_VV_SUPPRESS_RSP);
2279 phba->fc_stat.elsXmitPLOGI++;
2280 elsiocb->cmd_cmpl = lpfc_cmpl_els_plogi;
2282 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2283 "Issue PLOGI: did:x%x refcnt %d",
2284 did, kref_read(&ndlp->kref), 0);
2285 elsiocb->ndlp = lpfc_nlp_get(ndlp);
2286 if (!elsiocb->ndlp) {
2287 lpfc_els_free_iocb(phba, elsiocb);
2291 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2293 lpfc_els_free_iocb(phba, elsiocb);
2302 * lpfc_cmpl_els_prli - Completion callback function for prli
2303 * @phba: pointer to lpfc hba data structure.
2304 * @cmdiocb: pointer to lpfc command iocb data structure.
2305 * @rspiocb: pointer to lpfc response iocb data structure.
2307 * This routine is the completion callback function for a Process Login
2308 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2309 * status. If there is error status reported, PRLI retry shall be attempted
2310 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2311 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2312 * ndlp to mark the PRLI completion.
2315 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2316 struct lpfc_iocbq *rspiocb)
2318 struct lpfc_vport *vport = cmdiocb->vport;
2319 struct lpfc_nodelist *ndlp;
2324 bool release_node = false;
2326 /* we pass cmdiocb to state machine which needs rspiocb as well */
2327 cmdiocb->rsp_iocb = rspiocb;
2329 ndlp = cmdiocb->ndlp;
2331 ulp_status = get_job_ulpstatus(phba, rspiocb);
2332 ulp_word4 = get_job_word4(phba, rspiocb);
2334 spin_lock_irq(&ndlp->lock);
2335 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2337 /* Driver supports multiple FC4 types. Counters matter. */
2338 vport->fc_prli_sent--;
2339 ndlp->fc4_prli_sent--;
2340 spin_unlock_irq(&ndlp->lock);
2342 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2343 "PRLI cmpl: status:x%x/x%x did:x%x",
2344 ulp_status, ulp_word4,
2347 /* PRLI completes to NPort <nlp_DID> */
2348 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2349 "0103 PRLI completes to NPort x%06x "
2350 "Data: x%x x%x x%x x%x\n",
2351 ndlp->nlp_DID, ulp_status, ulp_word4,
2352 vport->num_disc_nodes, ndlp->fc4_prli_sent);
2354 /* Check to see if link went down during discovery */
2355 if (lpfc_els_chk_latt(vport))
2359 /* Check for retry */
2360 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2361 /* ELS command is being retried */
2365 /* If we don't send GFT_ID to Fabric, a PRLI error
2366 * could be expected.
2368 if ((vport->fc_flag & FC_FABRIC) ||
2369 (vport->cfg_enable_fc4_type != LPFC_ENABLE_BOTH)) {
2371 loglevel = LOG_TRACE_EVENT;
2378 lpfc_printf_vlog(vport, mode, loglevel,
2379 "2754 PRLI failure DID:%06X Status:x%x/x%x, "
2381 ndlp->nlp_DID, ulp_status,
2382 ulp_word4, ndlp->nlp_state,
2383 ndlp->fc4_prli_sent);
2385 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2386 if (!lpfc_error_lost_link(ulp_status, ulp_word4))
2387 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2390 /* The following condition catches an inflight transition
2391 * mismatch typically caused by an RSCN. Skip any
2392 * processing to allow recovery.
2394 if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE &&
2395 ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) {
2396 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2397 "2784 PRLI cmpl: state mismatch "
2398 "DID x%06x nstate x%x nflag x%x\n",
2399 ndlp->nlp_DID, ndlp->nlp_state,
2405 * For P2P topology, retain the node so that PLOGI can be
2406 * attempted on it again.
2408 if (vport->fc_flag & FC_PT2PT)
2411 /* As long as this node is not registered with the SCSI
2412 * or NVMe transport and no other PRLIs are outstanding,
2413 * it is no longer an active node. Otherwise devloss
2414 * handles the final cleanup.
2416 spin_lock_irq(&ndlp->lock);
2417 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) &&
2418 !ndlp->fc4_prli_sent) {
2419 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2420 if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS))
2421 release_node = true;
2423 spin_unlock_irq(&ndlp->lock);
2426 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2429 /* Good status, call state machine. However, if another
2430 * PRLI is outstanding, don't call the state machine
2431 * because final disposition to Mapped or Unmapped is
2434 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2439 lpfc_els_free_iocb(phba, cmdiocb);
2445 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2446 * @vport: pointer to a host virtual N_Port data structure.
2447 * @ndlp: pointer to a node-list data structure.
2448 * @retry: number of retries to the command IOCB.
2450 * This routine issues a Process Login (PRLI) ELS command for the
2451 * @vport. The PRLI service parameters are set up in the payload of the
2452 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2453 * is put to the IOCB completion callback func field before invoking the
2454 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2456 * Note that the ndlp reference count will be incremented by 1 for holding the
2457 * ndlp and the reference to ndlp will be stored into the ndlp field of
2458 * the IOCB for the completion callback function to the PRLI ELS command.
2461 * 0 - successfully issued prli iocb command for @vport
2462 * 1 - failed to issue prli iocb command for @vport
2465 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2469 struct lpfc_hba *phba = vport->phba;
2471 struct lpfc_nvme_prli *npr_nvme;
2472 struct lpfc_iocbq *elsiocb;
2475 u32 local_nlp_type, elscmd;
2478 * If we are in RSCN mode, the FC4 types supported from a
2479 * previous GFT_ID command may not be accurate. So, if we
2480 * are a NVME Initiator, always look for the possibility of
2481 * the remote NPort beng a NVME Target.
2483 if (phba->sli_rev == LPFC_SLI_REV4 &&
2484 vport->fc_flag & FC_RSCN_MODE &&
2485 vport->nvmei_support)
2486 ndlp->nlp_fc4_type |= NLP_FC4_NVME;
2487 local_nlp_type = ndlp->nlp_fc4_type;
2489 /* This routine will issue 1 or 2 PRLIs, so zero all the ndlp
2490 * fields here before any of them can complete.
2492 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
2493 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR);
2494 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
2495 ndlp->nlp_flag &= ~(NLP_FIRSTBURST | NLP_NPR_2B_DISC);
2496 ndlp->nvme_fb_size = 0;
2499 if (local_nlp_type & NLP_FC4_FCP) {
2500 /* Payload is 4 + 16 = 20 x14 bytes. */
2501 cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
2502 elscmd = ELS_CMD_PRLI;
2503 } else if (local_nlp_type & NLP_FC4_NVME) {
2504 /* Payload is 4 + 20 = 24 x18 bytes. */
2505 cmdsize = (sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli));
2506 elscmd = ELS_CMD_NVMEPRLI;
2508 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2509 "3083 Unknown FC_TYPE x%x ndlp x%06x\n",
2510 ndlp->nlp_fc4_type, ndlp->nlp_DID);
2514 /* SLI3 ports don't support NVME. If this rport is a strict NVME
2515 * FC4 type, implicitly LOGO.
2517 if (phba->sli_rev == LPFC_SLI_REV3 &&
2518 ndlp->nlp_fc4_type == NLP_FC4_NVME) {
2519 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2520 "3088 Rport fc4 type 0x%x not supported by SLI3 adapter\n",
2522 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
2526 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2527 ndlp->nlp_DID, elscmd);
2531 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
2533 /* For PRLI request, remainder of payload is service parameters */
2534 memset(pcmd, 0, cmdsize);
2536 if (local_nlp_type & NLP_FC4_FCP) {
2537 /* Remainder of payload is FCP PRLI parameter page.
2538 * Note: this data structure is defined as
2539 * BE/LE in the structure definition so no
2540 * byte swap call is made.
2542 *((uint32_t *)(pcmd)) = ELS_CMD_PRLI;
2543 pcmd += sizeof(uint32_t);
2547 * If our firmware version is 3.20 or later,
2548 * set the following bits for FC-TAPE support.
2550 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
2551 npr->ConfmComplAllowed = 1;
2553 npr->TaskRetryIdReq = 1;
2555 npr->estabImagePair = 1;
2556 npr->readXferRdyDis = 1;
2557 if (vport->cfg_first_burst_size)
2558 npr->writeXferRdyDis = 1;
2560 /* For FCP support */
2561 npr->prliType = PRLI_FCP_TYPE;
2562 npr->initiatorFunc = 1;
2563 elsiocb->cmd_flag |= LPFC_PRLI_FCP_REQ;
2565 /* Remove FCP type - processed. */
2566 local_nlp_type &= ~NLP_FC4_FCP;
2567 } else if (local_nlp_type & NLP_FC4_NVME) {
2568 /* Remainder of payload is NVME PRLI parameter page.
2569 * This data structure is the newer definition that
2570 * uses bf macros so a byte swap is required.
2572 *((uint32_t *)(pcmd)) = ELS_CMD_NVMEPRLI;
2573 pcmd += sizeof(uint32_t);
2574 npr_nvme = (struct lpfc_nvme_prli *)pcmd;
2575 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
2576 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */
2578 bf_set(prli_nsler, npr_nvme, 1);
2579 bf_set(prli_conf, npr_nvme, 1);
2582 /* Only initiators request first burst. */
2583 if ((phba->cfg_nvme_enable_fb) &&
2584 !phba->nvmet_support)
2585 bf_set(prli_fba, npr_nvme, 1);
2587 if (phba->nvmet_support) {
2588 bf_set(prli_tgt, npr_nvme, 1);
2589 bf_set(prli_disc, npr_nvme, 1);
2591 bf_set(prli_init, npr_nvme, 1);
2592 bf_set(prli_conf, npr_nvme, 1);
2595 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1);
2596 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4);
2597 elsiocb->cmd_flag |= LPFC_PRLI_NVME_REQ;
2599 /* Remove NVME type - processed. */
2600 local_nlp_type &= ~NLP_FC4_NVME;
2603 phba->fc_stat.elsXmitPRLI++;
2604 elsiocb->cmd_cmpl = lpfc_cmpl_els_prli;
2606 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2607 "Issue PRLI: did:x%x refcnt %d",
2608 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
2609 elsiocb->ndlp = lpfc_nlp_get(ndlp);
2610 if (!elsiocb->ndlp) {
2611 lpfc_els_free_iocb(phba, elsiocb);
2615 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2616 if (rc == IOCB_ERROR) {
2617 lpfc_els_free_iocb(phba, elsiocb);
2622 /* The vport counters are used for lpfc_scan_finished, but
2623 * the ndlp is used to track outstanding PRLIs for different
2626 spin_lock_irq(&ndlp->lock);
2627 ndlp->nlp_flag |= NLP_PRLI_SND;
2628 vport->fc_prli_sent++;
2629 ndlp->fc4_prli_sent++;
2630 spin_unlock_irq(&ndlp->lock);
2632 /* The driver supports 2 FC4 types. Make sure
2633 * a PRLI is issued for all types before exiting.
2635 if (phba->sli_rev == LPFC_SLI_REV4 &&
2636 local_nlp_type & (NLP_FC4_FCP | NLP_FC4_NVME))
2637 goto send_next_prli;
2643 * lpfc_rscn_disc - Perform rscn discovery for a vport
2644 * @vport: pointer to a host virtual N_Port data structure.
2646 * This routine performs Registration State Change Notification (RSCN)
2647 * discovery for a @vport. If the @vport's node port recovery count is not
2648 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2649 * the nodes that need recovery. If none of the PLOGI were needed through
2650 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2651 * invoked to check and handle possible more RSCN came in during the period
2652 * of processing the current ones.
2655 lpfc_rscn_disc(struct lpfc_vport *vport)
2657 lpfc_can_disctmo(vport);
2659 /* RSCN discovery */
2660 /* go thru NPR nodes and issue ELS PLOGIs */
2661 if (vport->fc_npr_cnt)
2662 if (lpfc_els_disc_plogi(vport))
2665 lpfc_end_rscn(vport);
2669 * lpfc_adisc_done - Complete the adisc phase of discovery
2670 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2672 * This function is called when the final ADISC is completed during discovery.
2673 * This function handles clearing link attention or issuing reg_vpi depending
2674 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2676 * This function is called with no locks held.
2679 lpfc_adisc_done(struct lpfc_vport *vport)
2681 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2682 struct lpfc_hba *phba = vport->phba;
2685 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2686 * and continue discovery.
2688 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2689 !(vport->fc_flag & FC_RSCN_MODE) &&
2690 (phba->sli_rev < LPFC_SLI_REV4)) {
2693 * If link is down, clear_la and reg_vpi will be done after
2694 * flogi following a link up event
2696 if (!lpfc_is_link_up(phba))
2699 /* The ADISCs are complete. Doesn't matter if they
2700 * succeeded or failed because the ADISC completion
2701 * routine guarantees to call the state machine and
2702 * the RPI is either unregistered (failed ADISC response)
2703 * or the RPI is still valid and the node is marked
2704 * mapped for a target. The exchanges should be in the
2705 * correct state. This code is specific to SLI3.
2707 lpfc_issue_clear_la(phba, vport);
2708 lpfc_issue_reg_vpi(phba, vport);
2712 * For SLI2, we need to set port_state to READY
2713 * and continue discovery.
2715 if (vport->port_state < LPFC_VPORT_READY) {
2716 /* If we get here, there is nothing to ADISC */
2717 lpfc_issue_clear_la(phba, vport);
2718 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2719 vport->num_disc_nodes = 0;
2720 /* go thru NPR list, issue ELS PLOGIs */
2721 if (vport->fc_npr_cnt)
2722 lpfc_els_disc_plogi(vport);
2723 if (!vport->num_disc_nodes) {
2724 spin_lock_irq(shost->host_lock);
2725 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2726 spin_unlock_irq(shost->host_lock);
2727 lpfc_can_disctmo(vport);
2728 lpfc_end_rscn(vport);
2731 vport->port_state = LPFC_VPORT_READY;
2733 lpfc_rscn_disc(vport);
2737 * lpfc_more_adisc - Issue more adisc as needed
2738 * @vport: pointer to a host virtual N_Port data structure.
2740 * This routine determines whether there are more ndlps on a @vport
2741 * node list need to have Address Discover (ADISC) issued. If so, it will
2742 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2743 * remaining nodes which need to have ADISC sent.
2746 lpfc_more_adisc(struct lpfc_vport *vport)
2748 if (vport->num_disc_nodes)
2749 vport->num_disc_nodes--;
2750 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2751 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2752 "0210 Continue discovery with %d ADISCs to go "
2753 "Data: x%x x%x x%x\n",
2754 vport->num_disc_nodes, vport->fc_adisc_cnt,
2755 vport->fc_flag, vport->port_state);
2756 /* Check to see if there are more ADISCs to be sent */
2757 if (vport->fc_flag & FC_NLP_MORE) {
2758 lpfc_set_disctmo(vport);
2759 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2760 lpfc_els_disc_adisc(vport);
2762 if (!vport->num_disc_nodes)
2763 lpfc_adisc_done(vport);
2768 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2769 * @phba: pointer to lpfc hba data structure.
2770 * @cmdiocb: pointer to lpfc command iocb data structure.
2771 * @rspiocb: pointer to lpfc response iocb data structure.
2773 * This routine is the completion function for issuing the Address Discover
2774 * (ADISC) command. It first checks to see whether link went down during
2775 * the discovery process. If so, the node will be marked as node port
2776 * recovery for issuing discover IOCB by the link attention handler and
2777 * exit. Otherwise, the response status is checked. If error was reported
2778 * in the response status, the ADISC command shall be retried by invoking
2779 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2780 * the response status, the state machine is invoked to set transition
2781 * with respect to NLP_EVT_CMPL_ADISC event.
2784 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2785 struct lpfc_iocbq *rspiocb)
2787 struct lpfc_vport *vport = cmdiocb->vport;
2789 struct lpfc_nodelist *ndlp;
2791 u32 ulp_status, ulp_word4, tmo;
2792 bool release_node = false;
2794 /* we pass cmdiocb to state machine which needs rspiocb as well */
2795 cmdiocb->rsp_iocb = rspiocb;
2797 ndlp = cmdiocb->ndlp;
2799 ulp_status = get_job_ulpstatus(phba, rspiocb);
2800 ulp_word4 = get_job_word4(phba, rspiocb);
2802 if (phba->sli_rev == LPFC_SLI_REV4) {
2803 tmo = get_wqe_tmo(cmdiocb);
2805 irsp = &rspiocb->iocb;
2806 tmo = irsp->ulpTimeout;
2809 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2810 "ADISC cmpl: status:x%x/x%x did:x%x",
2811 ulp_status, ulp_word4,
2814 /* Since ndlp can be freed in the disc state machine, note if this node
2815 * is being used during discovery.
2817 spin_lock_irq(&ndlp->lock);
2818 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
2819 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
2820 spin_unlock_irq(&ndlp->lock);
2821 /* ADISC completes to NPort <nlp_DID> */
2822 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2823 "0104 ADISC completes to NPort x%x "
2824 "Data: x%x x%x x%x x%x x%x\n",
2825 ndlp->nlp_DID, ulp_status, ulp_word4,
2826 tmo, disc, vport->num_disc_nodes);
2827 /* Check to see if link went down during discovery */
2828 if (lpfc_els_chk_latt(vport)) {
2829 spin_lock_irq(&ndlp->lock);
2830 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2831 spin_unlock_irq(&ndlp->lock);
2836 /* Check for retry */
2837 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2838 /* ELS command is being retried */
2840 spin_lock_irq(&ndlp->lock);
2841 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2842 spin_unlock_irq(&ndlp->lock);
2843 lpfc_set_disctmo(vport);
2848 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
2849 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2850 ndlp->nlp_DID, ulp_status,
2852 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2853 NLP_EVT_CMPL_ADISC);
2855 /* As long as this node is not registered with the SCSI or NVMe
2856 * transport, it is no longer an active node. Otherwise
2857 * devloss handles the final cleanup.
2859 spin_lock_irq(&ndlp->lock);
2860 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
2861 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2862 if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS))
2863 release_node = true;
2865 spin_unlock_irq(&ndlp->lock);
2868 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2871 /* Good status, call state machine */
2872 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2873 NLP_EVT_CMPL_ADISC);
2875 /* Check to see if there are more ADISCs to be sent */
2876 if (disc && vport->num_disc_nodes)
2877 lpfc_more_adisc(vport);
2879 lpfc_els_free_iocb(phba, cmdiocb);
2885 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2886 * @vport: pointer to a virtual N_Port data structure.
2887 * @ndlp: pointer to a node-list data structure.
2888 * @retry: number of retries to the command IOCB.
2890 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2891 * @vport. It prepares the payload of the ADISC ELS command, updates the
2892 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2893 * to issue the ADISC ELS command.
2895 * Note that the ndlp reference count will be incremented by 1 for holding the
2896 * ndlp and the reference to ndlp will be stored into the ndlp field of
2897 * the IOCB for the completion callback function to the ADISC ELS command.
2900 * 0 - successfully issued adisc
2901 * 1 - failed to issue adisc
2904 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2908 struct lpfc_hba *phba = vport->phba;
2910 struct lpfc_iocbq *elsiocb;
2914 cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
2915 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2916 ndlp->nlp_DID, ELS_CMD_ADISC);
2920 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
2922 /* For ADISC request, remainder of payload is service parameters */
2923 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
2924 pcmd += sizeof(uint32_t);
2926 /* Fill in ADISC payload */
2927 ap = (ADISC *) pcmd;
2928 ap->hardAL_PA = phba->fc_pref_ALPA;
2929 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
2930 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2931 ap->DID = be32_to_cpu(vport->fc_myDID);
2933 phba->fc_stat.elsXmitADISC++;
2934 elsiocb->cmd_cmpl = lpfc_cmpl_els_adisc;
2935 spin_lock_irq(&ndlp->lock);
2936 ndlp->nlp_flag |= NLP_ADISC_SND;
2937 spin_unlock_irq(&ndlp->lock);
2938 elsiocb->ndlp = lpfc_nlp_get(ndlp);
2939 if (!elsiocb->ndlp) {
2940 lpfc_els_free_iocb(phba, elsiocb);
2944 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2945 "Issue ADISC: did:x%x refcnt %d",
2946 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
2948 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2949 if (rc == IOCB_ERROR) {
2950 lpfc_els_free_iocb(phba, elsiocb);
2958 spin_lock_irq(&ndlp->lock);
2959 ndlp->nlp_flag &= ~NLP_ADISC_SND;
2960 spin_unlock_irq(&ndlp->lock);
2965 * lpfc_cmpl_els_logo - Completion callback function for logo
2966 * @phba: pointer to lpfc hba data structure.
2967 * @cmdiocb: pointer to lpfc command iocb data structure.
2968 * @rspiocb: pointer to lpfc response iocb data structure.
2970 * This routine is the completion function for issuing the ELS Logout (LOGO)
2971 * command. If no error status was reported from the LOGO response, the
2972 * state machine of the associated ndlp shall be invoked for transition with
2973 * respect to NLP_EVT_CMPL_LOGO event.
2976 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2977 struct lpfc_iocbq *rspiocb)
2979 struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
2980 struct lpfc_vport *vport = ndlp->vport;
2982 unsigned long flags;
2983 uint32_t skip_recovery = 0;
2984 int wake_up_waiter = 0;
2989 /* we pass cmdiocb to state machine which needs rspiocb as well */
2990 cmdiocb->rsp_iocb = rspiocb;
2992 ulp_status = get_job_ulpstatus(phba, rspiocb);
2993 ulp_word4 = get_job_word4(phba, rspiocb);
2995 if (phba->sli_rev == LPFC_SLI_REV4) {
2996 tmo = get_wqe_tmo(cmdiocb);
2998 irsp = &rspiocb->iocb;
2999 tmo = irsp->ulpTimeout;
3002 spin_lock_irq(&ndlp->lock);
3003 ndlp->nlp_flag &= ~NLP_LOGO_SND;
3004 if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) {
3006 ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO;
3008 spin_unlock_irq(&ndlp->lock);
3010 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3011 "LOGO cmpl: status:x%x/x%x did:x%x",
3012 ulp_status, ulp_word4,
3015 /* LOGO completes to NPort <nlp_DID> */
3016 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3017 "0105 LOGO completes to NPort x%x "
3018 "refcnt %d nflags x%x Data: x%x x%x x%x x%x\n",
3019 ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp->nlp_flag,
3020 ulp_status, ulp_word4,
3021 tmo, vport->num_disc_nodes);
3023 if (lpfc_els_chk_latt(vport)) {
3028 /* The LOGO will not be retried on failure. A LOGO was
3029 * issued to the remote rport and a ACC or RJT or no Answer are
3030 * all acceptable. Note the failure and move forward with
3031 * discovery. The PLOGI will retry.
3035 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3036 "2756 LOGO failure, No Retry DID:%06X "
3038 ndlp->nlp_DID, ulp_status,
3041 if (lpfc_error_lost_link(ulp_status, ulp_word4))
3045 /* Call state machine. This will unregister the rpi if needed. */
3046 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
3051 /* The driver sets this flag for an NPIV instance that doesn't want to
3052 * log into the remote port.
3054 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
3055 spin_lock_irq(&ndlp->lock);
3056 if (phba->sli_rev == LPFC_SLI_REV4)
3057 ndlp->nlp_flag |= NLP_RELEASE_RPI;
3058 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
3059 spin_unlock_irq(&ndlp->lock);
3060 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
3066 /* At this point, the LOGO processing is complete. NOTE: For a
3067 * pt2pt topology, we are assuming the NPortID will only change
3068 * on link up processing. For a LOGO / PLOGI initiated by the
3069 * Initiator, we are assuming the NPortID is not going to change.
3072 if (wake_up_waiter && ndlp->logo_waitq)
3073 wake_up(ndlp->logo_waitq);
3075 * If the node is a target, the handling attempts to recover the port.
3076 * For any other port type, the rpi is unregistered as an implicit
3079 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) &&
3080 skip_recovery == 0) {
3081 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3082 spin_lock_irqsave(&ndlp->lock, flags);
3083 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3084 spin_unlock_irqrestore(&ndlp->lock, flags);
3086 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3087 "3187 LOGO completes to NPort x%x: Start "
3088 "Recovery Data: x%x x%x x%x x%x\n",
3089 ndlp->nlp_DID, ulp_status,
3091 vport->num_disc_nodes);
3093 lpfc_els_free_iocb(phba, cmdiocb);
3096 lpfc_disc_start(vport);
3100 /* Cleanup path for failed REG_RPI handling. If REG_RPI fails, the
3101 * driver sends a LOGO to the rport to cleanup. For fabric and
3102 * initiator ports cleanup the node as long as it the node is not
3103 * register with the transport.
3105 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
3106 spin_lock_irq(&ndlp->lock);
3107 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
3108 spin_unlock_irq(&ndlp->lock);
3109 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
3113 /* Driver is done with the I/O. */
3114 lpfc_els_free_iocb(phba, cmdiocb);
3119 * lpfc_issue_els_logo - Issue a logo to an node on a vport
3120 * @vport: pointer to a virtual N_Port data structure.
3121 * @ndlp: pointer to a node-list data structure.
3122 * @retry: number of retries to the command IOCB.
3124 * This routine constructs and issues an ELS Logout (LOGO) iocb command
3125 * to a remote node, referred by an @ndlp on a @vport. It constructs the
3126 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
3127 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
3129 * Note that the ndlp reference count will be incremented by 1 for holding the
3130 * ndlp and the reference to ndlp will be stored into the ndlp field of
3131 * the IOCB for the completion callback function to the LOGO ELS command.
3133 * Callers of this routine are expected to unregister the RPI first
3136 * 0 - successfully issued logo
3137 * 1 - failed to issue logo
3140 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3143 struct lpfc_hba *phba = vport->phba;
3144 struct lpfc_iocbq *elsiocb;
3149 spin_lock_irq(&ndlp->lock);
3150 if (ndlp->nlp_flag & NLP_LOGO_SND) {
3151 spin_unlock_irq(&ndlp->lock);
3154 spin_unlock_irq(&ndlp->lock);
3156 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
3157 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3158 ndlp->nlp_DID, ELS_CMD_LOGO);
3162 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
3163 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
3164 pcmd += sizeof(uint32_t);
3166 /* Fill in LOGO payload */
3167 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
3168 pcmd += sizeof(uint32_t);
3169 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
3171 phba->fc_stat.elsXmitLOGO++;
3172 elsiocb->cmd_cmpl = lpfc_cmpl_els_logo;
3173 spin_lock_irq(&ndlp->lock);
3174 ndlp->nlp_flag |= NLP_LOGO_SND;
3175 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
3176 spin_unlock_irq(&ndlp->lock);
3177 elsiocb->ndlp = lpfc_nlp_get(ndlp);
3178 if (!elsiocb->ndlp) {
3179 lpfc_els_free_iocb(phba, elsiocb);
3183 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3184 "Issue LOGO: did:x%x refcnt %d",
3185 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
3187 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3188 if (rc == IOCB_ERROR) {
3189 lpfc_els_free_iocb(phba, elsiocb);
3194 spin_lock_irq(&ndlp->lock);
3195 ndlp->nlp_prev_state = ndlp->nlp_state;
3196 spin_unlock_irq(&ndlp->lock);
3197 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3201 spin_lock_irq(&ndlp->lock);
3202 ndlp->nlp_flag &= ~NLP_LOGO_SND;
3203 spin_unlock_irq(&ndlp->lock);
3208 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
3209 * @phba: pointer to lpfc hba data structure.
3210 * @cmdiocb: pointer to lpfc command iocb data structure.
3211 * @rspiocb: pointer to lpfc response iocb data structure.
3213 * This routine is a generic completion callback function for ELS commands.
3214 * Specifically, it is the callback function which does not need to perform
3215 * any command specific operations. It is currently used by the ELS command
3216 * issuing routines for RSCN, lpfc_issue_els_rscn, and the ELS Fibre Channel
3217 * Address Resolution Protocol Response (FARPR) routine, lpfc_issue_els_farpr().
3218 * Other than certain debug loggings, this callback function simply invokes the
3219 * lpfc_els_chk_latt() routine to check whether link went down during the
3220 * discovery process.
3223 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3224 struct lpfc_iocbq *rspiocb)
3226 struct lpfc_vport *vport = cmdiocb->vport;
3227 struct lpfc_nodelist *free_ndlp;
3229 u32 ulp_status, ulp_word4, tmo, did, iotag;
3231 ulp_status = get_job_ulpstatus(phba, rspiocb);
3232 ulp_word4 = get_job_word4(phba, rspiocb);
3233 did = get_job_els_rsp64_did(phba, cmdiocb);
3235 if (phba->sli_rev == LPFC_SLI_REV4) {
3236 tmo = get_wqe_tmo(cmdiocb);
3237 iotag = get_wqe_reqtag(cmdiocb);
3239 irsp = &rspiocb->iocb;
3240 tmo = irsp->ulpTimeout;
3241 iotag = irsp->ulpIoTag;
3244 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3245 "ELS cmd cmpl: status:x%x/x%x did:x%x",
3246 ulp_status, ulp_word4, did);
3248 /* ELS cmd tag <ulpIoTag> completes */
3249 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3250 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
3251 iotag, ulp_status, ulp_word4, tmo);
3253 /* Check to see if link went down during discovery */
3254 lpfc_els_chk_latt(vport);
3256 free_ndlp = cmdiocb->ndlp;
3258 lpfc_els_free_iocb(phba, cmdiocb);
3259 lpfc_nlp_put(free_ndlp);
3263 * lpfc_reg_fab_ctrl_node - RPI register the fabric controller node.
3264 * @vport: pointer to lpfc_vport data structure.
3265 * @fc_ndlp: pointer to the fabric controller (0xfffffd) node.
3267 * This routine registers the rpi assigned to the fabric controller
3268 * NPort_ID (0xfffffd) with the port and moves the node to UNMAPPED
3269 * state triggering a registration with the SCSI transport.
3271 * This routine is single out because the fabric controller node
3272 * does not receive a PLOGI. This routine is consumed by the
3273 * SCR and RDF ELS commands. Callers are expected to qualify
3277 lpfc_reg_fab_ctrl_node(struct lpfc_vport *vport, struct lpfc_nodelist *fc_ndlp)
3280 struct lpfc_hba *phba = vport->phba;
3281 struct lpfc_nodelist *ns_ndlp;
3284 if (fc_ndlp->nlp_flag & NLP_RPI_REGISTERED)
3287 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID);
3291 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3292 "0935 %s: Reg FC RPI x%x on FC DID x%x NSSte: x%x\n",
3293 __func__, fc_ndlp->nlp_rpi, fc_ndlp->nlp_DID,
3294 ns_ndlp->nlp_state);
3295 if (ns_ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
3298 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3300 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3301 "0936 %s: no memory for reg_login "
3302 "Data: x%x x%x x%x x%x\n", __func__,
3303 fc_ndlp->nlp_DID, fc_ndlp->nlp_state,
3304 fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi);
3307 rc = lpfc_reg_rpi(phba, vport->vpi, fc_ndlp->nlp_DID,
3308 (u8 *)&vport->fc_sparam, mbox, fc_ndlp->nlp_rpi);
3314 fc_ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
3315 mbox->mbox_cmpl = lpfc_mbx_cmpl_fc_reg_login;
3316 mbox->ctx_ndlp = lpfc_nlp_get(fc_ndlp);
3317 if (!mbox->ctx_ndlp) {
3322 mbox->vport = vport;
3323 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3324 if (rc == MBX_NOT_FINISHED) {
3326 lpfc_nlp_put(fc_ndlp);
3329 /* Success path. Exit. */
3330 lpfc_nlp_set_state(vport, fc_ndlp,
3331 NLP_STE_REG_LOGIN_ISSUE);
3335 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
3336 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3337 "0938 %s: failed to format reg_login "
3338 "Data: x%x x%x x%x x%x\n", __func__,
3339 fc_ndlp->nlp_DID, fc_ndlp->nlp_state,
3340 fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi);
3345 * lpfc_cmpl_els_disc_cmd - Completion callback function for Discovery ELS cmd
3346 * @phba: pointer to lpfc hba data structure.
3347 * @cmdiocb: pointer to lpfc command iocb data structure.
3348 * @rspiocb: pointer to lpfc response iocb data structure.
3350 * This routine is a generic completion callback function for Discovery ELS cmd.
3351 * Currently used by the ELS command issuing routines for the ELS State Change
3352 * Request (SCR), lpfc_issue_els_scr() and the ELS RDF, lpfc_issue_els_rdf().
3353 * These commands will be retried once only for ELS timeout errors.
3356 lpfc_cmpl_els_disc_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3357 struct lpfc_iocbq *rspiocb)
3359 struct lpfc_vport *vport = cmdiocb->vport;
3361 struct lpfc_els_rdf_rsp *prdf;
3362 struct lpfc_dmabuf *pcmd, *prsp;
3365 struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
3366 u32 ulp_status, ulp_word4, tmo, did, iotag;
3368 ulp_status = get_job_ulpstatus(phba, rspiocb);
3369 ulp_word4 = get_job_word4(phba, rspiocb);
3370 did = get_job_els_rsp64_did(phba, cmdiocb);
3372 if (phba->sli_rev == LPFC_SLI_REV4) {
3373 tmo = get_wqe_tmo(cmdiocb);
3374 iotag = get_wqe_reqtag(cmdiocb);
3376 irsp = &rspiocb->iocb;
3377 tmo = irsp->ulpTimeout;
3378 iotag = irsp->ulpIoTag;
3381 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3382 "ELS cmd cmpl: status:x%x/x%x did:x%x",
3383 ulp_status, ulp_word4, did);
3385 /* ELS cmd tag <ulpIoTag> completes */
3386 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
3387 "0217 ELS cmd tag x%x completes Data: x%x x%x x%x x%x\n",
3388 iotag, ulp_status, ulp_word4, tmo, cmdiocb->retry);
3390 pcmd = cmdiocb->cmd_dmabuf;
3394 pdata = (u32 *)pcmd->virt;
3399 /* Only 1 retry for ELS Timeout only */
3400 if (ulp_status == IOSTAT_LOCAL_REJECT &&
3401 ((ulp_word4 & IOERR_PARAM_MASK) ==
3402 IOERR_SEQUENCE_TIMEOUT)) {
3404 if (cmdiocb->retry <= 1) {
3407 lpfc_issue_els_scr(vport, cmdiocb->retry);
3410 lpfc_issue_els_edc(vport, cmdiocb->retry);
3413 lpfc_issue_els_rdf(vport, cmdiocb->retry);
3418 phba->fc_stat.elsRetryExceeded++;
3420 if (cmd == ELS_CMD_EDC) {
3421 /* must be called before checking uplStatus and returning */
3422 lpfc_cmpl_els_edc(phba, cmdiocb, rspiocb);
3426 /* ELS discovery cmd completes with error */
3427 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT,
3428 "4203 ELS cmd x%x error: x%x x%X\n", cmd,
3429 ulp_status, ulp_word4);
3433 /* The RDF response doesn't have any impact on the running driver
3434 * but the notification descriptors are dumped here for support.
3436 if (cmd == ELS_CMD_RDF) {
3439 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
3443 prdf = (struct lpfc_els_rdf_rsp *)prsp->virt;
3447 for (i = 0; i < ELS_RDF_REG_TAG_CNT &&
3448 i < be32_to_cpu(prdf->reg_d1.reg_desc.count); i++)
3449 lpfc_printf_vlog(vport, KERN_INFO,
3450 LOG_ELS | LOG_CGN_MGMT,
3451 "4677 Fabric RDF Notification Grant "
3452 "Data: 0x%08x Reg: %x %x\n",
3454 prdf->reg_d1.desc_tags[i]),
3455 phba->cgn_reg_signal,
3456 phba->cgn_reg_fpin);
3460 /* Check to see if link went down during discovery */
3461 lpfc_els_chk_latt(vport);
3462 lpfc_els_free_iocb(phba, cmdiocb);
3468 * lpfc_issue_els_scr - Issue a scr to an node on a vport
3469 * @vport: pointer to a host virtual N_Port data structure.
3470 * @retry: retry counter for the command IOCB.
3472 * This routine issues a State Change Request (SCR) to a fabric node
3473 * on a @vport. The remote node is Fabric Controller (0xfffffd). It
3474 * first search the @vport node list to find the matching ndlp. If no such
3475 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
3476 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
3477 * routine is invoked to send the SCR IOCB.
3479 * Note that the ndlp reference count will be incremented by 1 for holding the
3480 * ndlp and the reference to ndlp will be stored into the ndlp field of
3481 * the IOCB for the completion callback function to the SCR ELS command.
3484 * 0 - Successfully issued scr command
3485 * 1 - Failed to issue scr command
3488 lpfc_issue_els_scr(struct lpfc_vport *vport, uint8_t retry)
3491 struct lpfc_hba *phba = vport->phba;
3492 struct lpfc_iocbq *elsiocb;
3495 struct lpfc_nodelist *ndlp;
3497 cmdsize = (sizeof(uint32_t) + sizeof(SCR));
3499 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID);
3501 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID);
3504 lpfc_enqueue_node(vport, ndlp);
3507 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3508 ndlp->nlp_DID, ELS_CMD_SCR);
3512 if (phba->sli_rev == LPFC_SLI_REV4) {
3513 rc = lpfc_reg_fab_ctrl_node(vport, ndlp);
3515 lpfc_els_free_iocb(phba, elsiocb);
3516 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3517 "0937 %s: Failed to reg fc node, rc %d\n",
3522 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
3524 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
3525 pcmd += sizeof(uint32_t);
3527 /* For SCR, remainder of payload is SCR parameter page */
3528 memset(pcmd, 0, sizeof(SCR));
3529 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
3531 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3532 "Issue SCR: did:x%x",
3533 ndlp->nlp_DID, 0, 0);
3535 phba->fc_stat.elsXmitSCR++;
3536 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd;
3537 elsiocb->ndlp = lpfc_nlp_get(ndlp);
3538 if (!elsiocb->ndlp) {
3539 lpfc_els_free_iocb(phba, elsiocb);
3543 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3544 "Issue SCR: did:x%x refcnt %d",
3545 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
3547 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3548 if (rc == IOCB_ERROR) {
3549 lpfc_els_free_iocb(phba, elsiocb);
3558 * lpfc_issue_els_rscn - Issue an RSCN to the Fabric Controller (Fabric)
3559 * or the other nport (pt2pt).
3560 * @vport: pointer to a host virtual N_Port data structure.
3561 * @retry: number of retries to the command IOCB.
3563 * This routine issues a RSCN to the Fabric Controller (DID 0xFFFFFD)
3564 * when connected to a fabric, or to the remote port when connected
3565 * in point-to-point mode. When sent to the Fabric Controller, it will
3566 * replay the RSCN to registered recipients.
3568 * Note that the ndlp reference count will be incremented by 1 for holding the
3569 * ndlp and the reference to ndlp will be stored into the ndlp field of
3570 * the IOCB for the completion callback function to the RSCN ELS command.
3573 * 0 - Successfully issued RSCN command
3574 * 1 - Failed to issue RSCN command
3577 lpfc_issue_els_rscn(struct lpfc_vport *vport, uint8_t retry)
3580 struct lpfc_hba *phba = vport->phba;
3581 struct lpfc_iocbq *elsiocb;
3582 struct lpfc_nodelist *ndlp;
3584 struct fc_els_rscn rscn;
3585 struct fc_els_rscn_page portid;
3588 uint16_t cmdsize = sizeof(*event);
3590 /* Not supported for private loop */
3591 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
3592 !(vport->fc_flag & FC_PUBLIC_LOOP))
3595 if (vport->fc_flag & FC_PT2PT) {
3596 /* find any mapped nport - that would be the other nport */
3597 ndlp = lpfc_findnode_mapped(vport);
3601 nportid = FC_FID_FCTRL;
3602 /* find the fabric controller node */
3603 ndlp = lpfc_findnode_did(vport, nportid);
3605 /* if one didn't exist, make one */
3606 ndlp = lpfc_nlp_init(vport, nportid);
3609 lpfc_enqueue_node(vport, ndlp);
3613 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3614 ndlp->nlp_DID, ELS_CMD_RSCN_XMT);
3619 event = elsiocb->cmd_dmabuf->virt;
3621 event->rscn.rscn_cmd = ELS_RSCN;
3622 event->rscn.rscn_page_len = sizeof(struct fc_els_rscn_page);
3623 event->rscn.rscn_plen = cpu_to_be16(cmdsize);
3625 nportid = vport->fc_myDID;
3626 /* appears that page flags must be 0 for fabric to broadcast RSCN */
3627 event->portid.rscn_page_flags = 0;
3628 event->portid.rscn_fid[0] = (nportid & 0x00FF0000) >> 16;
3629 event->portid.rscn_fid[1] = (nportid & 0x0000FF00) >> 8;
3630 event->portid.rscn_fid[2] = nportid & 0x000000FF;
3632 phba->fc_stat.elsXmitRSCN++;
3633 elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd;
3634 elsiocb->ndlp = lpfc_nlp_get(ndlp);
3635 if (!elsiocb->ndlp) {
3636 lpfc_els_free_iocb(phba, elsiocb);
3640 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3641 "Issue RSCN: did:x%x",
3642 ndlp->nlp_DID, 0, 0);
3644 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3645 if (rc == IOCB_ERROR) {
3646 lpfc_els_free_iocb(phba, elsiocb);
3655 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
3656 * @vport: pointer to a host virtual N_Port data structure.
3657 * @nportid: N_Port identifier to the remote node.
3658 * @retry: number of retries to the command IOCB.
3660 * This routine issues a Fibre Channel Address Resolution Response
3661 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
3662 * is passed into the function. It first search the @vport node list to find
3663 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
3664 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
3665 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
3667 * Note that the ndlp reference count will be incremented by 1 for holding the
3668 * ndlp and the reference to ndlp will be stored into the ndlp field of
3669 * the IOCB for the completion callback function to the FARPR ELS command.
3672 * 0 - Successfully issued farpr command
3673 * 1 - Failed to issue farpr command
3676 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
3679 struct lpfc_hba *phba = vport->phba;
3680 struct lpfc_iocbq *elsiocb;
3685 struct lpfc_nodelist *ondlp;
3686 struct lpfc_nodelist *ndlp;
3688 cmdsize = (sizeof(uint32_t) + sizeof(FARP));
3690 ndlp = lpfc_findnode_did(vport, nportid);
3692 ndlp = lpfc_nlp_init(vport, nportid);
3695 lpfc_enqueue_node(vport, ndlp);
3698 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3699 ndlp->nlp_DID, ELS_CMD_FARPR);
3703 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
3705 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
3706 pcmd += sizeof(uint32_t);
3708 /* Fill in FARPR payload */
3709 fp = (FARP *) (pcmd);
3710 memset(fp, 0, sizeof(FARP));
3711 lp = (uint32_t *) pcmd;
3712 *lp++ = be32_to_cpu(nportid);
3713 *lp++ = be32_to_cpu(vport->fc_myDID);
3715 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
3717 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
3718 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
3719 ondlp = lpfc_findnode_did(vport, nportid);
3721 memcpy(&fp->OportName, &ondlp->nlp_portname,
3722 sizeof(struct lpfc_name));
3723 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
3724 sizeof(struct lpfc_name));
3727 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3728 "Issue FARPR: did:x%x",
3729 ndlp->nlp_DID, 0, 0);
3731 phba->fc_stat.elsXmitFARPR++;
3732 elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd;
3733 elsiocb->ndlp = lpfc_nlp_get(ndlp);
3734 if (!elsiocb->ndlp) {
3735 lpfc_els_free_iocb(phba, elsiocb);
3739 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3740 if (rc == IOCB_ERROR) {
3741 /* The additional lpfc_nlp_put will cause the following
3742 * lpfc_els_free_iocb routine to trigger the release of
3745 lpfc_els_free_iocb(phba, elsiocb);
3749 /* This will cause the callback-function lpfc_cmpl_els_cmd to
3750 * trigger the release of the node.
3752 /* Don't release reference count as RDF is likely outstanding */
3757 * lpfc_issue_els_rdf - Register for diagnostic functions from the fabric.
3758 * @vport: pointer to a host virtual N_Port data structure.
3759 * @retry: retry counter for the command IOCB.
3761 * This routine issues an ELS RDF to the Fabric Controller to register
3762 * for diagnostic functions.
3764 * Note that the ndlp reference count will be incremented by 1 for holding the
3765 * ndlp and the reference to ndlp will be stored into the ndlp field of
3766 * the IOCB for the completion callback function to the RDF ELS command.
3769 * 0 - Successfully issued rdf command
3770 * 1 - Failed to issue rdf command
3773 lpfc_issue_els_rdf(struct lpfc_vport *vport, uint8_t retry)
3775 struct lpfc_hba *phba = vport->phba;
3776 struct lpfc_iocbq *elsiocb;
3777 struct lpfc_els_rdf_req *prdf;
3778 struct lpfc_nodelist *ndlp;
3782 cmdsize = sizeof(*prdf);
3784 ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID);
3786 ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID);
3789 lpfc_enqueue_node(vport, ndlp);
3792 /* RDF ELS is not required on an NPIV VN_Port. */
3793 if (vport->port_type == LPFC_NPIV_PORT)
3796 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
3797 ndlp->nlp_DID, ELS_CMD_RDF);
3801 /* Configure the payload for the supported FPIN events. */
3802 prdf = (struct lpfc_els_rdf_req *)elsiocb->cmd_dmabuf->virt;
3803 memset(prdf, 0, cmdsize);
3804 prdf->rdf.fpin_cmd = ELS_RDF;
3805 prdf->rdf.desc_len = cpu_to_be32(sizeof(struct lpfc_els_rdf_req) -
3806 sizeof(struct fc_els_rdf));
3807 prdf->reg_d1.reg_desc.desc_tag = cpu_to_be32(ELS_DTAG_FPIN_REGISTER);
3808 prdf->reg_d1.reg_desc.desc_len = cpu_to_be32(
3809 FC_TLV_DESC_LENGTH_FROM_SZ(prdf->reg_d1));
3810 prdf->reg_d1.reg_desc.count = cpu_to_be32(ELS_RDF_REG_TAG_CNT);
3811 prdf->reg_d1.desc_tags[0] = cpu_to_be32(ELS_DTAG_LNK_INTEGRITY);
3812 prdf->reg_d1.desc_tags[1] = cpu_to_be32(ELS_DTAG_DELIVERY);
3813 prdf->reg_d1.desc_tags[2] = cpu_to_be32(ELS_DTAG_PEER_CONGEST);
3814 prdf->reg_d1.desc_tags[3] = cpu_to_be32(ELS_DTAG_CONGESTION);
3816 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
3817 "6444 Xmit RDF to remote NPORT x%x Reg: %x %x\n",
3818 ndlp->nlp_DID, phba->cgn_reg_signal,
3819 phba->cgn_reg_fpin);
3821 phba->cgn_fpin_frequency = LPFC_FPIN_INIT_FREQ;
3822 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd;
3823 elsiocb->ndlp = lpfc_nlp_get(ndlp);
3824 if (!elsiocb->ndlp) {
3825 lpfc_els_free_iocb(phba, elsiocb);
3829 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3830 "Issue RDF: did:x%x refcnt %d",
3831 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
3833 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
3834 if (rc == IOCB_ERROR) {
3835 lpfc_els_free_iocb(phba, elsiocb);
3843 * lpfc_els_rcv_rdf - Receive RDF ELS request from the fabric.
3844 * @vport: pointer to a host virtual N_Port data structure.
3845 * @cmdiocb: pointer to lpfc command iocb data structure.
3846 * @ndlp: pointer to a node-list data structure.
3848 * A received RDF implies a possible change to fabric supported diagnostic
3849 * functions. This routine sends LS_ACC and then has the Nx_Port issue a new
3850 * RDF request to reregister for supported diagnostic functions.
3854 * -EIO - Failed to process received RDF
3857 lpfc_els_rcv_rdf(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3858 struct lpfc_nodelist *ndlp)
3861 if (lpfc_els_rsp_acc(vport, ELS_CMD_RDF, cmdiocb, ndlp, NULL)) {
3862 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
3863 "1623 Failed to RDF_ACC from x%x for x%x\n",
3864 ndlp->nlp_DID, vport->fc_myDID);
3868 /* Issue new RDF for reregistering */
3869 if (lpfc_issue_els_rdf(vport, 0)) {
3870 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
3871 "2623 Failed to re register RDF for x%x\n",
3880 * lpfc_least_capable_settings - helper function for EDC rsp processing
3881 * @phba: pointer to lpfc hba data structure.
3882 * @pcgd: pointer to congestion detection descriptor in EDC rsp.
3884 * This helper routine determines the least capable setting for
3885 * congestion signals, signal freq, including scale, from the
3886 * congestion detection descriptor in the EDC rsp. The routine
3887 * sets @phba values in preparation for a set_featues mailbox.
3890 lpfc_least_capable_settings(struct lpfc_hba *phba,
3891 struct fc_diag_cg_sig_desc *pcgd)
3893 u32 rsp_sig_cap = 0, drv_sig_cap = 0;
3894 u32 rsp_sig_freq_cyc = 0, rsp_sig_freq_scale = 0;
3896 /* Get rsp signal and frequency capabilities. */
3897 rsp_sig_cap = be32_to_cpu(pcgd->xmt_signal_capability);
3898 rsp_sig_freq_cyc = be16_to_cpu(pcgd->xmt_signal_frequency.count);
3899 rsp_sig_freq_scale = be16_to_cpu(pcgd->xmt_signal_frequency.units);
3901 /* If the Fport does not support signals. Set FPIN only */
3902 if (rsp_sig_cap == EDC_CG_SIG_NOTSUPPORTED)
3903 goto out_no_support;
3905 /* Apply the xmt scale to the xmt cycle to get the correct frequency.
3906 * Adapter default is 100 millisSeconds. Convert all xmt cycle values
3909 switch (rsp_sig_freq_scale) {
3910 case EDC_CG_SIGFREQ_SEC:
3911 rsp_sig_freq_cyc *= MSEC_PER_SEC;
3913 case EDC_CG_SIGFREQ_MSEC:
3914 rsp_sig_freq_cyc = 1;
3917 goto out_no_support;
3920 /* Convenient shorthand. */
3921 drv_sig_cap = phba->cgn_reg_signal;
3923 /* Choose the least capable frequency. */
3924 if (rsp_sig_freq_cyc > phba->cgn_sig_freq)
3925 phba->cgn_sig_freq = rsp_sig_freq_cyc;
3927 /* Should be some common signals support. Settle on least capable
3928 * signal and adjust FPIN values. Initialize defaults to ease the
3931 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM;
3932 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
3933 if (rsp_sig_cap == EDC_CG_SIG_WARN_ONLY &&
3934 (drv_sig_cap == EDC_CG_SIG_WARN_ONLY ||
3935 drv_sig_cap == EDC_CG_SIG_WARN_ALARM)) {
3936 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
3937 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
3939 if (rsp_sig_cap == EDC_CG_SIG_WARN_ALARM) {
3940 if (drv_sig_cap == EDC_CG_SIG_WARN_ALARM) {
3941 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ALARM;
3942 phba->cgn_reg_fpin = LPFC_CGN_FPIN_NONE;
3944 if (drv_sig_cap == EDC_CG_SIG_WARN_ONLY) {
3945 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
3946 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
3950 /* We are NOT recording signal frequency in congestion info buffer */
3954 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
3955 phba->cgn_sig_freq = 0;
3956 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN;
3959 DECLARE_ENUM2STR_LOOKUP(lpfc_get_tlv_dtag_nm, fc_ls_tlv_dtag,
3960 FC_LS_TLV_DTAG_INIT);
3963 * lpfc_cmpl_els_edc - Completion callback function for EDC
3964 * @phba: pointer to lpfc hba data structure.
3965 * @cmdiocb: pointer to lpfc command iocb data structure.
3966 * @rspiocb: pointer to lpfc response iocb data structure.
3968 * This routine is the completion callback function for issuing the Exchange
3969 * Diagnostic Capabilities (EDC) command. The driver issues an EDC to
3970 * notify the FPort of its Congestion and Link Fault capabilities. This
3971 * routine parses the FPort's response and decides on the least common
3972 * values applicable to both FPort and NPort for Warnings and Alarms that
3973 * are communicated via hardware signals.
3976 lpfc_cmpl_els_edc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3977 struct lpfc_iocbq *rspiocb)
3980 struct fc_els_edc_resp *edc_rsp;
3981 struct fc_tlv_desc *tlv;
3982 struct fc_diag_cg_sig_desc *pcgd;
3983 struct fc_diag_lnkflt_desc *plnkflt;
3984 struct lpfc_dmabuf *pcmd, *prsp;
3985 const char *dtag_nm;
3987 int desc_cnt = 0, bytes_remain;
3988 bool rcv_cap_desc = false;
3989 struct lpfc_nodelist *ndlp;
3990 u32 ulp_status, ulp_word4, tmo, did, iotag;
3992 ndlp = cmdiocb->ndlp;
3994 ulp_status = get_job_ulpstatus(phba, rspiocb);
3995 ulp_word4 = get_job_word4(phba, rspiocb);
3996 did = get_job_els_rsp64_did(phba, rspiocb);
3998 if (phba->sli_rev == LPFC_SLI_REV4) {
3999 tmo = get_wqe_tmo(rspiocb);
4000 iotag = get_wqe_reqtag(rspiocb);
4002 irsp_iocb = &rspiocb->iocb;
4003 tmo = irsp_iocb->ulpTimeout;
4004 iotag = irsp_iocb->ulpIoTag;
4007 lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD,
4008 "EDC cmpl: status:x%x/x%x did:x%x",
4009 ulp_status, ulp_word4, did);
4011 /* ELS cmd tag <ulpIoTag> completes */
4012 lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
4013 "4201 EDC cmd tag x%x completes Data: x%x x%x x%x\n",
4014 iotag, ulp_status, ulp_word4, tmo);
4016 pcmd = cmdiocb->cmd_dmabuf;
4020 pdata = (u32 *)pcmd->virt;
4024 /* Need to clear signal values, send features MB and RDF with FPIN. */
4028 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
4032 edc_rsp = prsp->virt;
4036 /* ELS cmd tag <ulpIoTag> completes */
4037 lpfc_printf_log(phba, KERN_INFO,
4038 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
4039 "4676 Fabric EDC Rsp: "
4041 edc_rsp->acc_hdr.la_cmd,
4042 be32_to_cpu(edc_rsp->desc_list_len));
4045 * Payload length in bytes is the response descriptor list
4046 * length minus the 12 bytes of Link Service Request
4047 * Information descriptor in the reply.
4049 bytes_remain = be32_to_cpu(edc_rsp->desc_list_len) -
4050 sizeof(struct fc_els_lsri_desc);
4051 if (bytes_remain <= 0)
4054 tlv = edc_rsp->desc;
4057 * cycle through EDC diagnostic descriptors to find the
4058 * congestion signaling capability descriptor
4060 while (bytes_remain) {
4061 if (bytes_remain < FC_TLV_DESC_HDR_SZ) {
4062 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
4063 "6461 Truncated TLV hdr on "
4064 "Diagnostic descriptor[%d]\n",
4069 dtag = be32_to_cpu(tlv->desc_tag);
4071 case ELS_DTAG_LNK_FAULT_CAP:
4072 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) ||
4073 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) !=
4074 sizeof(struct fc_diag_lnkflt_desc)) {
4075 lpfc_printf_log(phba, KERN_WARNING,
4076 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
4077 "6462 Truncated Link Fault Diagnostic "
4078 "descriptor[%d]: %d vs 0x%zx 0x%zx\n",
4079 desc_cnt, bytes_remain,
4080 FC_TLV_DESC_SZ_FROM_LENGTH(tlv),
4081 sizeof(struct fc_diag_lnkflt_desc));
4084 plnkflt = (struct fc_diag_lnkflt_desc *)tlv;
4085 lpfc_printf_log(phba, KERN_INFO,
4086 LOG_ELS | LOG_LDS_EVENT,
4087 "4617 Link Fault Desc Data: 0x%08x 0x%08x "
4088 "0x%08x 0x%08x 0x%08x\n",
4089 be32_to_cpu(plnkflt->desc_tag),
4090 be32_to_cpu(plnkflt->desc_len),
4092 plnkflt->degrade_activate_threshold),
4094 plnkflt->degrade_deactivate_threshold),
4095 be32_to_cpu(plnkflt->fec_degrade_interval));
4097 case ELS_DTAG_CG_SIGNAL_CAP:
4098 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) ||
4099 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) !=
4100 sizeof(struct fc_diag_cg_sig_desc)) {
4102 phba, KERN_WARNING, LOG_CGN_MGMT,
4103 "6463 Truncated Cgn Signal Diagnostic "
4104 "descriptor[%d]: %d vs 0x%zx 0x%zx\n",
4105 desc_cnt, bytes_remain,
4106 FC_TLV_DESC_SZ_FROM_LENGTH(tlv),
4107 sizeof(struct fc_diag_cg_sig_desc));
4111 pcgd = (struct fc_diag_cg_sig_desc *)tlv;
4113 phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
4114 "4616 CGN Desc Data: 0x%08x 0x%08x "
4115 "0x%08x 0x%04x 0x%04x 0x%08x 0x%04x 0x%04x\n",
4116 be32_to_cpu(pcgd->desc_tag),
4117 be32_to_cpu(pcgd->desc_len),
4118 be32_to_cpu(pcgd->xmt_signal_capability),
4119 be16_to_cpu(pcgd->xmt_signal_frequency.count),
4120 be16_to_cpu(pcgd->xmt_signal_frequency.units),
4121 be32_to_cpu(pcgd->rcv_signal_capability),
4122 be16_to_cpu(pcgd->rcv_signal_frequency.count),
4123 be16_to_cpu(pcgd->rcv_signal_frequency.units));
4125 /* Compare driver and Fport capabilities and choose
4128 lpfc_least_capable_settings(phba, pcgd);
4129 rcv_cap_desc = true;
4132 dtag_nm = lpfc_get_tlv_dtag_nm(dtag);
4133 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
4134 "4919 unknown Diagnostic "
4135 "Descriptor[%d]: tag x%x (%s)\n",
4136 desc_cnt, dtag, dtag_nm);
4139 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv);
4140 tlv = fc_tlv_next_desc(tlv);
4145 if (!rcv_cap_desc) {
4146 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN;
4147 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
4148 phba->cgn_sig_freq = 0;
4149 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT,
4150 "4202 EDC rsp error - sending RDF "
4151 "for FPIN only.\n");
4154 lpfc_config_cgn_signal(phba);
4156 /* Check to see if link went down during discovery */
4157 lpfc_els_chk_latt(phba->pport);
4158 lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD,
4159 "EDC Cmpl: did:x%x refcnt %d",
4160 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
4161 lpfc_els_free_iocb(phba, cmdiocb);
4166 lpfc_format_edc_lft_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
4168 struct fc_diag_lnkflt_desc *lft = (struct fc_diag_lnkflt_desc *)tlv;
4170 lft->desc_tag = cpu_to_be32(ELS_DTAG_LNK_FAULT_CAP);
4171 lft->desc_len = cpu_to_be32(
4172 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_lnkflt_desc));
4174 lft->degrade_activate_threshold =
4175 cpu_to_be32(phba->degrade_activate_threshold);
4176 lft->degrade_deactivate_threshold =
4177 cpu_to_be32(phba->degrade_deactivate_threshold);
4178 lft->fec_degrade_interval = cpu_to_be32(phba->fec_degrade_interval);
4182 lpfc_format_edc_cgn_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
4184 struct fc_diag_cg_sig_desc *cgd = (struct fc_diag_cg_sig_desc *)tlv;
4186 /* We are assuming cgd was zero'ed before calling this routine */
4188 /* Configure the congestion detection capability */
4189 cgd->desc_tag = cpu_to_be32(ELS_DTAG_CG_SIGNAL_CAP);
4191 /* Descriptor len doesn't include the tag or len fields. */
4192 cgd->desc_len = cpu_to_be32(
4193 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_cg_sig_desc));
4195 /* xmt_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED.
4196 * xmt_signal_frequency.count already set to 0.
4197 * xmt_signal_frequency.units already set to 0.
4200 if (phba->cmf_active_mode == LPFC_CFG_OFF) {
4201 /* rcv_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED.
4202 * rcv_signal_frequency.count already set to 0.
4203 * rcv_signal_frequency.units already set to 0.
4205 phba->cgn_sig_freq = 0;
4208 switch (phba->cgn_reg_signal) {
4209 case EDC_CG_SIG_WARN_ONLY:
4210 cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ONLY);
4212 case EDC_CG_SIG_WARN_ALARM:
4213 cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ALARM);
4216 /* rcv_signal_capability left 0 thus no support */
4220 /* We start negotiation with lpfc_fabric_cgn_frequency, after
4221 * the completion we settle on the higher frequency.
4223 cgd->rcv_signal_frequency.count =
4224 cpu_to_be16(lpfc_fabric_cgn_frequency);
4225 cgd->rcv_signal_frequency.units =
4226 cpu_to_be16(EDC_CG_SIGFREQ_MSEC);
4230 lpfc_link_is_lds_capable(struct lpfc_hba *phba)
4232 if (!(phba->lmt & LMT_64Gb))
4234 if (phba->sli_rev != LPFC_SLI_REV4)
4237 if (phba->sli4_hba.conf_trunk) {
4238 if (phba->trunk_link.phy_lnk_speed == LPFC_USER_LINK_SPEED_64G)
4240 } else if (phba->fc_linkspeed == LPFC_LINK_SPEED_64GHZ) {
4247 * lpfc_issue_els_edc - Exchange Diagnostic Capabilities with the fabric.
4248 * @vport: pointer to a host virtual N_Port data structure.
4249 * @retry: retry counter for the command iocb.
4251 * This routine issues an ELS EDC to the F-Port Controller to communicate
4252 * this N_Port's support of hardware signals in its Congestion
4253 * Capabilities Descriptor.
4255 * Note: This routine does not check if one or more signals are
4256 * set in the cgn_reg_signal parameter. The caller makes the
4257 * decision to enforce cgn_reg_signal as nonzero or zero depending
4258 * on the conditions. During Fabric requests, the driver
4259 * requires cgn_reg_signals to be nonzero. But a dynamic request
4260 * to set the congestion mode to OFF from Monitor or Manage
4261 * would correctly issue an EDC with no signals enabled to
4262 * turn off switch functionality and then update the FW.
4265 * 0 - Successfully issued edc command
4266 * 1 - Failed to issue edc command
4269 lpfc_issue_els_edc(struct lpfc_vport *vport, uint8_t retry)
4271 struct lpfc_hba *phba = vport->phba;
4272 struct lpfc_iocbq *elsiocb;
4273 struct fc_els_edc *edc_req;
4274 struct fc_tlv_desc *tlv;
4276 struct lpfc_nodelist *ndlp;
4278 u32 cgn_desc_size, lft_desc_size;
4281 if (vport->port_type == LPFC_NPIV_PORT)
4284 ndlp = lpfc_findnode_did(vport, Fabric_DID);
4285 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
4288 cgn_desc_size = (phba->cgn_init_reg_signal) ?
4289 sizeof(struct fc_diag_cg_sig_desc) : 0;
4290 lft_desc_size = (lpfc_link_is_lds_capable(phba)) ?
4291 sizeof(struct fc_diag_lnkflt_desc) : 0;
4292 cmdsize = cgn_desc_size + lft_desc_size;
4294 /* Skip EDC if no applicable descriptors */
4298 cmdsize += sizeof(struct fc_els_edc);
4299 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
4300 ndlp->nlp_DID, ELS_CMD_EDC);
4304 /* Configure the payload for the supported Diagnostics capabilities. */
4305 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
4306 memset(pcmd, 0, cmdsize);
4307 edc_req = (struct fc_els_edc *)pcmd;
4308 edc_req->desc_len = cpu_to_be32(cgn_desc_size + lft_desc_size);
4309 edc_req->edc_cmd = ELS_EDC;
4310 tlv = edc_req->desc;
4312 if (cgn_desc_size) {
4313 lpfc_format_edc_cgn_desc(phba, tlv);
4314 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
4315 tlv = fc_tlv_next_desc(tlv);
4319 lpfc_format_edc_lft_desc(phba, tlv);
4321 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
4322 "4623 Xmit EDC to remote "
4323 "NPORT x%x reg_sig x%x reg_fpin:x%x\n",
4324 ndlp->nlp_DID, phba->cgn_reg_signal,
4325 phba->cgn_reg_fpin);
4327 elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd;
4328 elsiocb->ndlp = lpfc_nlp_get(ndlp);
4329 if (!elsiocb->ndlp) {
4330 lpfc_els_free_iocb(phba, elsiocb);
4334 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4335 "Issue EDC: did:x%x refcnt %d",
4336 ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
4337 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4338 if (rc == IOCB_ERROR) {
4339 /* The additional lpfc_nlp_put will cause the following
4340 * lpfc_els_free_iocb routine to trigger the rlease of
4343 lpfc_els_free_iocb(phba, elsiocb);
4349 phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM;
4350 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
4351 rc = lpfc_issue_els_rdf(vport, 0);
4356 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
4357 * @vport: pointer to a host virtual N_Port data structure.
4358 * @nlp: pointer to a node-list data structure.
4360 * This routine cancels the timer with a delayed IOCB-command retry for
4361 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
4362 * removes the ELS retry event if it presents. In addition, if the
4363 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
4364 * commands are sent for the @vport's nodes that require issuing discovery
4368 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
4370 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4371 struct lpfc_work_evt *evtp;
4373 if (!(nlp->nlp_flag & NLP_DELAY_TMO))
4375 spin_lock_irq(&nlp->lock);
4376 nlp->nlp_flag &= ~NLP_DELAY_TMO;
4377 spin_unlock_irq(&nlp->lock);
4378 del_timer_sync(&nlp->nlp_delayfunc);
4379 nlp->nlp_last_elscmd = 0;
4380 if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
4381 list_del_init(&nlp->els_retry_evt.evt_listp);
4382 /* Decrement nlp reference count held for the delayed retry */
4383 evtp = &nlp->els_retry_evt;
4384 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
4386 if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
4387 spin_lock_irq(&nlp->lock);
4388 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
4389 spin_unlock_irq(&nlp->lock);
4390 if (vport->num_disc_nodes) {
4391 if (vport->port_state < LPFC_VPORT_READY) {
4392 /* Check if there are more ADISCs to be sent */
4393 lpfc_more_adisc(vport);
4395 /* Check if there are more PLOGIs to be sent */
4396 lpfc_more_plogi(vport);
4397 if (vport->num_disc_nodes == 0) {
4398 spin_lock_irq(shost->host_lock);
4399 vport->fc_flag &= ~FC_NDISC_ACTIVE;
4400 spin_unlock_irq(shost->host_lock);
4401 lpfc_can_disctmo(vport);
4402 lpfc_end_rscn(vport);
4411 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
4412 * @t: pointer to the timer function associated data (ndlp).
4414 * This routine is invoked by the ndlp delayed-function timer to check
4415 * whether there is any pending ELS retry event(s) with the node. If not, it
4416 * simply returns. Otherwise, if there is at least one ELS delayed event, it
4417 * adds the delayed events to the HBA work list and invokes the
4418 * lpfc_worker_wake_up() routine to wake up worker thread to process the
4419 * event. Note that lpfc_nlp_get() is called before posting the event to
4420 * the work list to hold reference count of ndlp so that it guarantees the
4421 * reference to ndlp will still be available when the worker thread gets
4422 * to the event associated with the ndlp.
4425 lpfc_els_retry_delay(struct timer_list *t)
4427 struct lpfc_nodelist *ndlp = from_timer(ndlp, t, nlp_delayfunc);
4428 struct lpfc_vport *vport = ndlp->vport;
4429 struct lpfc_hba *phba = vport->phba;
4430 unsigned long flags;
4431 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
4433 spin_lock_irqsave(&phba->hbalock, flags);
4434 if (!list_empty(&evtp->evt_listp)) {
4435 spin_unlock_irqrestore(&phba->hbalock, flags);
4439 /* We need to hold the node by incrementing the reference
4440 * count until the queued work is done
4442 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
4443 if (evtp->evt_arg1) {
4444 evtp->evt = LPFC_EVT_ELS_RETRY;
4445 list_add_tail(&evtp->evt_listp, &phba->work_list);
4446 lpfc_worker_wake_up(phba);
4448 spin_unlock_irqrestore(&phba->hbalock, flags);
4453 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
4454 * @ndlp: pointer to a node-list data structure.
4456 * This routine is the worker-thread handler for processing the @ndlp delayed
4457 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
4458 * the last ELS command from the associated ndlp and invokes the proper ELS
4459 * function according to the delayed ELS command to retry the command.
4462 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
4464 struct lpfc_vport *vport = ndlp->vport;
4465 uint32_t cmd, retry;
4467 spin_lock_irq(&ndlp->lock);
4468 cmd = ndlp->nlp_last_elscmd;
4469 ndlp->nlp_last_elscmd = 0;
4471 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
4472 spin_unlock_irq(&ndlp->lock);
4476 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
4477 spin_unlock_irq(&ndlp->lock);
4479 * If a discovery event readded nlp_delayfunc after timer
4480 * firing and before processing the timer, cancel the
4483 del_timer_sync(&ndlp->nlp_delayfunc);
4484 retry = ndlp->nlp_retry;
4485 ndlp->nlp_retry = 0;
4489 lpfc_issue_els_flogi(vport, ndlp, retry);
4492 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
4493 ndlp->nlp_prev_state = ndlp->nlp_state;
4494 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
4498 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
4499 ndlp->nlp_prev_state = ndlp->nlp_state;
4500 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
4504 case ELS_CMD_NVMEPRLI:
4505 if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
4506 ndlp->nlp_prev_state = ndlp->nlp_state;
4507 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
4511 if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
4512 ndlp->nlp_prev_state = ndlp->nlp_state;
4513 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
4517 if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
4518 lpfc_issue_els_fdisc(vport, ndlp, retry);
4525 * lpfc_link_reset - Issue link reset
4526 * @vport: pointer to a virtual N_Port data structure.
4528 * This routine performs link reset by sending INIT_LINK mailbox command.
4529 * For SLI-3 adapter, link attention interrupt is enabled before issuing
4530 * INIT_LINK mailbox command.
4533 * 0 - Link reset initiated successfully
4534 * 1 - Failed to initiate link reset
4537 lpfc_link_reset(struct lpfc_vport *vport)
4539 struct lpfc_hba *phba = vport->phba;
4544 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
4545 "2851 Attempt link reset\n");
4546 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4548 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4549 "2852 Failed to allocate mbox memory");
4553 /* Enable Link attention interrupts */
4554 if (phba->sli_rev <= LPFC_SLI_REV3) {
4555 spin_lock_irq(&phba->hbalock);
4556 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4557 control = readl(phba->HCregaddr);
4558 control |= HC_LAINT_ENA;
4559 writel(control, phba->HCregaddr);
4560 readl(phba->HCregaddr); /* flush */
4561 spin_unlock_irq(&phba->hbalock);
4564 lpfc_init_link(phba, mbox, phba->cfg_topology,
4565 phba->cfg_link_speed);
4566 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4567 mbox->vport = vport;
4568 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4569 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
4570 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4571 "2853 Failed to issue INIT_LINK "
4572 "mbox command, rc:x%x\n", rc);
4573 mempool_free(mbox, phba->mbox_mem_pool);
4581 * lpfc_els_retry - Make retry decision on an els command iocb
4582 * @phba: pointer to lpfc hba data structure.
4583 * @cmdiocb: pointer to lpfc command iocb data structure.
4584 * @rspiocb: pointer to lpfc response iocb data structure.
4586 * This routine makes a retry decision on an ELS command IOCB, which has
4587 * failed. The following ELS IOCBs use this function for retrying the command
4588 * when previously issued command responsed with error status: FLOGI, PLOGI,
4589 * PRLI, ADISC and FDISC. Based on the ELS command type and the
4590 * returned error status, it makes the decision whether a retry shall be
4591 * issued for the command, and whether a retry shall be made immediately or
4592 * delayed. In the former case, the corresponding ELS command issuing-function
4593 * is called to retry the command. In the later case, the ELS command shall
4594 * be posted to the ndlp delayed event and delayed function timer set to the
4595 * ndlp for the delayed command issusing.
4598 * 0 - No retry of els command is made
4599 * 1 - Immediate or delayed retry of els command is made
4602 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4603 struct lpfc_iocbq *rspiocb)
4605 struct lpfc_vport *vport = cmdiocb->vport;
4606 union lpfc_wqe128 *irsp = &rspiocb->wqe;
4607 struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
4608 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf;
4611 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
4615 int link_reset = 0, rc;
4616 u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
4617 u32 ulp_word4 = get_job_word4(phba, rspiocb);
4620 /* Note: cmd_dmabuf may be 0 for internal driver abort
4621 * of delays ELS command.
4624 if (pcmd && pcmd->virt) {
4625 elscmd = (uint32_t *) (pcmd->virt);
4630 did = ndlp->nlp_DID;
4632 /* We should only hit this case for retrying PLOGI */
4633 did = get_job_els_rsp64_did(phba, rspiocb);
4634 ndlp = lpfc_findnode_did(vport, did);
4635 if (!ndlp && (cmd != ELS_CMD_PLOGI))
4639 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4640 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
4641 *(((uint32_t *)irsp) + 7), ulp_word4, did);
4643 switch (ulp_status) {
4644 case IOSTAT_FCP_RSP_ERROR:
4646 case IOSTAT_REMOTE_STOP:
4647 if (phba->sli_rev == LPFC_SLI_REV4) {
4648 /* This IO was aborted by the target, we don't
4649 * know the rxid and because we did not send the
4650 * ABTS we cannot generate and RRQ.
4652 lpfc_set_rrq_active(phba, ndlp,
4653 cmdiocb->sli4_lxritag, 0, 0);
4656 case IOSTAT_LOCAL_REJECT:
4657 switch ((ulp_word4 & IOERR_PARAM_MASK)) {
4658 case IOERR_LOOP_OPEN_FAILURE:
4659 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
4664 case IOERR_ILLEGAL_COMMAND:
4665 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4666 "0124 Retry illegal cmd x%x "
4667 "retry:x%x delay:x%x\n",
4668 cmd, cmdiocb->retry, delay);
4670 /* All command's retry policy */
4672 if (cmdiocb->retry > 2)
4676 case IOERR_NO_RESOURCES:
4677 logerr = 1; /* HBA out of resources */
4679 if (cmdiocb->retry > 100)
4684 case IOERR_ILLEGAL_FRAME:
4689 case IOERR_INVALID_RPI:
4690 if (cmd == ELS_CMD_PLOGI &&
4691 did == NameServer_DID) {
4692 /* Continue forever if plogi to */
4693 /* the nameserver fails */
4696 } else if (cmd == ELS_CMD_PRLI &&
4697 ndlp->nlp_state != NLP_STE_PRLI_ISSUE) {
4698 /* State-command disagreement. The PRLI was
4699 * failed with an invalid rpi meaning there
4700 * some unexpected state change. Don't retry.
4709 case IOERR_SEQUENCE_TIMEOUT:
4710 if (cmd == ELS_CMD_PLOGI &&
4711 did == NameServer_DID &&
4712 (cmdiocb->retry + 1) == maxretry) {
4713 /* Reset the Link */
4720 case IOERR_SLI_ABORTED:
4721 /* Retry ELS PLOGI command?
4722 * Possibly the rport just wasn't ready.
4724 if (cmd == ELS_CMD_PLOGI) {
4725 /* No retry if state change */
4727 ndlp->nlp_state != NLP_STE_PLOGI_ISSUE)
4736 case IOSTAT_NPORT_RJT:
4737 case IOSTAT_FABRIC_RJT:
4738 if (ulp_word4 & RJT_UNAVAIL_TEMP) {
4744 case IOSTAT_NPORT_BSY:
4745 case IOSTAT_FABRIC_BSY:
4746 logerr = 1; /* Fabric / Remote NPort out of resources */
4751 stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4);
4752 /* Added for Vendor specifc support
4753 * Just keep retrying for these Rsn / Exp codes
4755 if ((vport->fc_flag & FC_PT2PT) &&
4756 cmd == ELS_CMD_NVMEPRLI) {
4757 switch (stat.un.b.lsRjtRsnCode) {
4758 case LSRJT_UNABLE_TPC:
4759 case LSRJT_INVALID_CMD:
4760 case LSRJT_LOGICAL_ERR:
4761 case LSRJT_CMD_UNSUPPORTED:
4762 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
4763 "0168 NVME PRLI LS_RJT "
4764 "reason %x port doesn't "
4765 "support NVME, disabling NVME\n",
4766 stat.un.b.lsRjtRsnCode);
4768 vport->fc_flag |= FC_PT2PT_NO_NVME;
4772 switch (stat.un.b.lsRjtRsnCode) {
4773 case LSRJT_UNABLE_TPC:
4774 /* Special case for PRLI LS_RJTs. Recall that lpfc
4775 * uses a single routine to issue both PRLI FC4 types.
4776 * If the PRLI is rejected because that FC4 type
4777 * isn't really supported, don't retry and cause
4778 * multiple transport registrations. Otherwise, parse
4779 * the reason code/reason code explanation and take the
4780 * appropriate action.
4782 lpfc_printf_vlog(vport, KERN_INFO,
4783 LOG_DISCOVERY | LOG_ELS | LOG_NODE,
4784 "0153 ELS cmd x%x LS_RJT by x%x. "
4785 "RsnCode x%x RsnCodeExp x%x\n",
4786 cmd, did, stat.un.b.lsRjtRsnCode,
4787 stat.un.b.lsRjtRsnCodeExp);
4789 switch (stat.un.b.lsRjtRsnCodeExp) {
4790 case LSEXP_CANT_GIVE_DATA:
4791 case LSEXP_CMD_IN_PROGRESS:
4792 if (cmd == ELS_CMD_PLOGI) {
4798 case LSEXP_REQ_UNSUPPORTED:
4799 case LSEXP_NO_RSRC_ASSIGN:
4800 /* These explanation codes get no retry. */
4801 if (cmd == ELS_CMD_PRLI ||
4802 cmd == ELS_CMD_NVMEPRLI)
4806 /* Limit the delay and retry action to a limited
4807 * cmd set. There are other ELS commands where
4808 * a retry is not expected.
4810 if (cmd == ELS_CMD_PLOGI ||
4811 cmd == ELS_CMD_PRLI ||
4812 cmd == ELS_CMD_NVMEPRLI) {
4814 maxretry = lpfc_max_els_tries + 1;
4820 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
4821 (cmd == ELS_CMD_FDISC) &&
4822 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
4823 lpfc_printf_vlog(vport, KERN_ERR,
4825 "0125 FDISC Failed (x%x). "
4826 "Fabric out of resources\n",
4827 stat.un.lsRjtError);
4828 lpfc_vport_set_state(vport,
4829 FC_VPORT_NO_FABRIC_RSCS);
4833 case LSRJT_LOGICAL_BSY:
4834 if ((cmd == ELS_CMD_PLOGI) ||
4835 (cmd == ELS_CMD_PRLI) ||
4836 (cmd == ELS_CMD_NVMEPRLI)) {
4839 } else if (cmd == ELS_CMD_FDISC) {
4840 /* FDISC retry policy */
4842 if (cmdiocb->retry >= 32)
4848 case LSRJT_LOGICAL_ERR:
4849 /* There are some cases where switches return this
4850 * error when they are not ready and should be returning
4851 * Logical Busy. We should delay every time.
4853 if (cmd == ELS_CMD_FDISC &&
4854 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
4858 } else if (cmd == ELS_CMD_FLOGI &&
4859 stat.un.b.lsRjtRsnCodeExp ==
4860 LSEXP_NOTHING_MORE) {
4861 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf;
4863 lpfc_printf_vlog(vport, KERN_ERR,
4865 "0820 FLOGI Failed (x%x). "
4866 "BBCredit Not Supported\n",
4867 stat.un.lsRjtError);
4871 case LSRJT_PROTOCOL_ERR:
4872 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
4873 (cmd == ELS_CMD_FDISC) &&
4874 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
4875 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
4877 lpfc_printf_vlog(vport, KERN_ERR,
4879 "0122 FDISC Failed (x%x). "
4880 "Fabric Detected Bad WWN\n",
4881 stat.un.lsRjtError);
4882 lpfc_vport_set_state(vport,
4883 FC_VPORT_FABRIC_REJ_WWN);
4886 case LSRJT_VENDOR_UNIQUE:
4887 if ((stat.un.b.vendorUnique == 0x45) &&
4888 (cmd == ELS_CMD_FLOGI)) {
4892 case LSRJT_CMD_UNSUPPORTED:
4893 /* lpfc nvmet returns this type of LS_RJT when it
4894 * receives an FCP PRLI because lpfc nvmet only
4895 * support NVME. ELS request is terminated for FCP4
4898 if (stat.un.b.lsRjtRsnCodeExp ==
4899 LSEXP_REQ_UNSUPPORTED) {
4900 if (cmd == ELS_CMD_PRLI)
4907 case IOSTAT_INTERMED_RSP:
4916 rc = lpfc_link_reset(vport);
4918 /* Do not give up. Retry PLOGI one more time and attempt
4919 * link reset if PLOGI fails again.
4928 if (did == FDMI_DID)
4931 if ((cmd == ELS_CMD_FLOGI) &&
4932 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
4933 !lpfc_error_lost_link(ulp_status, ulp_word4)) {
4934 /* FLOGI retry policy */
4936 /* retry FLOGI forever */
4937 if (phba->link_flag != LS_LOOPBACK_MODE)
4942 if (cmdiocb->retry >= 100)
4944 else if (cmdiocb->retry >= 32)
4946 } else if ((cmd == ELS_CMD_FDISC) &&
4947 !lpfc_error_lost_link(ulp_status, ulp_word4)) {
4948 /* retry FDISCs every second up to devloss */
4950 maxretry = vport->cfg_devloss_tmo;
4955 if (maxretry && (cmdiocb->retry >= maxretry)) {
4956 phba->fc_stat.elsRetryExceeded++;
4960 if ((vport->load_flag & FC_UNLOADING) != 0)
4965 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) {
4966 /* Stop retrying PLOGI and FDISC if in FCF discovery */
4967 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4968 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4969 "2849 Stop retry ELS command "
4970 "x%x to remote NPORT x%x, "
4971 "Data: x%x x%x\n", cmd, did,
4972 cmdiocb->retry, delay);
4977 /* Retry ELS command <elsCmd> to remote NPORT <did> */
4978 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4979 "0107 Retry ELS command x%x to remote "
4980 "NPORT x%x Data: x%x x%x\n",
4981 cmd, did, cmdiocb->retry, delay);
4983 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
4984 ((ulp_status != IOSTAT_LOCAL_REJECT) ||
4985 ((ulp_word4 & IOERR_PARAM_MASK) !=
4986 IOERR_NO_RESOURCES))) {
4987 /* Don't reset timer for no resources */
4989 /* If discovery / RSCN timer is running, reset it */
4990 if (timer_pending(&vport->fc_disctmo) ||
4991 (vport->fc_flag & FC_RSCN_MODE))
4992 lpfc_set_disctmo(vport);
4995 phba->fc_stat.elsXmitRetry++;
4996 if (ndlp && delay) {
4997 phba->fc_stat.elsDelayRetry++;
4998 ndlp->nlp_retry = cmdiocb->retry;
5000 /* delay is specified in milliseconds */
5001 mod_timer(&ndlp->nlp_delayfunc,
5002 jiffies + msecs_to_jiffies(delay));
5003 spin_lock_irq(&ndlp->lock);
5004 ndlp->nlp_flag |= NLP_DELAY_TMO;
5005 spin_unlock_irq(&ndlp->lock);
5007 ndlp->nlp_prev_state = ndlp->nlp_state;
5008 if ((cmd == ELS_CMD_PRLI) ||
5009 (cmd == ELS_CMD_NVMEPRLI))
5010 lpfc_nlp_set_state(vport, ndlp,
5011 NLP_STE_PRLI_ISSUE);
5012 else if (cmd != ELS_CMD_ADISC)
5013 lpfc_nlp_set_state(vport, ndlp,
5015 ndlp->nlp_last_elscmd = cmd;
5021 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
5024 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
5028 ndlp->nlp_prev_state = ndlp->nlp_state;
5029 lpfc_nlp_set_state(vport, ndlp,
5030 NLP_STE_PLOGI_ISSUE);
5032 lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
5035 ndlp->nlp_prev_state = ndlp->nlp_state;
5036 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
5037 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
5040 case ELS_CMD_NVMEPRLI:
5041 ndlp->nlp_prev_state = ndlp->nlp_state;
5042 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
5043 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
5046 ndlp->nlp_prev_state = ndlp->nlp_state;
5047 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
5048 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
5052 /* No retry ELS command <elsCmd> to remote NPORT <did> */
5054 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
5055 "0137 No retry ELS command x%x to remote "
5056 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
5057 cmd, did, ulp_status,
5061 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5062 "0108 No retry ELS command x%x to remote "
5063 "NPORT x%x Retried:%d Error:x%x/%x\n",
5064 cmd, did, cmdiocb->retry, ulp_status,
5071 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
5072 * @phba: pointer to lpfc hba data structure.
5073 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
5075 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
5076 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
5077 * checks to see whether there is a lpfc DMA buffer associated with the
5078 * response of the command IOCB. If so, it will be released before releasing
5079 * the lpfc DMA buffer associated with the IOCB itself.
5082 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
5085 lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
5087 struct lpfc_dmabuf *buf_ptr;
5089 /* Free the response before processing the command. */
5090 if (!list_empty(&buf_ptr1->list)) {
5091 list_remove_head(&buf_ptr1->list, buf_ptr,
5094 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
5097 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
5103 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
5104 * @phba: pointer to lpfc hba data structure.
5105 * @buf_ptr: pointer to the lpfc dma buffer data structure.
5107 * This routine releases the lpfc Direct Memory Access (DMA) buffer
5108 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
5112 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
5115 lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
5117 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
5123 * lpfc_els_free_iocb - Free a command iocb and its associated resources
5124 * @phba: pointer to lpfc hba data structure.
5125 * @elsiocb: pointer to lpfc els command iocb data structure.
5127 * This routine frees a command IOCB and its associated resources. The
5128 * command IOCB data structure contains the reference to various associated
5129 * resources, these fields must be set to NULL if the associated reference
5131 * cmd_dmabuf - reference to cmd.
5132 * cmd_dmabuf->next - reference to rsp
5133 * rsp_dmabuf - unused
5134 * bpl_dmabuf - reference to bpl
5136 * It first properly decrements the reference count held on ndlp for the
5137 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
5138 * set, it invokes the lpfc_els_free_data() routine to release the Direct
5139 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
5140 * adds the DMA buffer the @phba data structure for the delayed release.
5141 * If reference to the Buffer Pointer List (BPL) is present, the
5142 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
5143 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
5144 * invoked to release the IOCB data structure back to @phba IOCBQ list.
5147 * 0 - Success (currently, always return 0)
5150 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
5152 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
5154 /* The I/O iocb is complete. Clear the node and first dmbuf */
5155 elsiocb->ndlp = NULL;
5157 /* cmd_dmabuf = cmd, cmd_dmabuf->next = rsp, bpl_dmabuf = bpl */
5158 if (elsiocb->cmd_dmabuf) {
5159 if (elsiocb->cmd_flag & LPFC_DELAY_MEM_FREE) {
5160 /* Firmware could still be in progress of DMAing
5161 * payload, so don't free data buffer till after
5164 elsiocb->cmd_flag &= ~LPFC_DELAY_MEM_FREE;
5165 buf_ptr = elsiocb->cmd_dmabuf;
5166 elsiocb->cmd_dmabuf = NULL;
5169 spin_lock_irq(&phba->hbalock);
5170 if (!list_empty(&buf_ptr->list)) {
5171 list_remove_head(&buf_ptr->list,
5172 buf_ptr1, struct lpfc_dmabuf,
5174 INIT_LIST_HEAD(&buf_ptr1->list);
5175 list_add_tail(&buf_ptr1->list,
5179 INIT_LIST_HEAD(&buf_ptr->list);
5180 list_add_tail(&buf_ptr->list, &phba->elsbuf);
5182 spin_unlock_irq(&phba->hbalock);
5185 buf_ptr1 = elsiocb->cmd_dmabuf;
5186 lpfc_els_free_data(phba, buf_ptr1);
5187 elsiocb->cmd_dmabuf = NULL;
5191 if (elsiocb->bpl_dmabuf) {
5192 buf_ptr = elsiocb->bpl_dmabuf;
5193 lpfc_els_free_bpl(phba, buf_ptr);
5194 elsiocb->bpl_dmabuf = NULL;
5196 lpfc_sli_release_iocbq(phba, elsiocb);
5201 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
5202 * @phba: pointer to lpfc hba data structure.
5203 * @cmdiocb: pointer to lpfc command iocb data structure.
5204 * @rspiocb: pointer to lpfc response iocb data structure.
5206 * This routine is the completion callback function to the Logout (LOGO)
5207 * Accept (ACC) Response ELS command. This routine is invoked to indicate
5208 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
5209 * release the ndlp if it has the last reference remaining (reference count
5210 * is 1). If succeeded (meaning ndlp released), it sets the iocb ndlp
5211 * field to NULL to inform the following lpfc_els_free_iocb() routine no
5212 * ndlp reference count needs to be decremented. Otherwise, the ndlp
5213 * reference use-count shall be decremented by the lpfc_els_free_iocb()
5214 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
5215 * IOCB data structure.
5218 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
5219 struct lpfc_iocbq *rspiocb)
5221 struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
5222 struct lpfc_vport *vport = cmdiocb->vport;
5223 u32 ulp_status, ulp_word4;
5225 ulp_status = get_job_ulpstatus(phba, rspiocb);
5226 ulp_word4 = get_job_word4(phba, rspiocb);
5228 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5229 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
5230 ulp_status, ulp_word4, ndlp->nlp_DID);
5231 /* ACC to LOGO completes to NPort <nlp_DID> */
5232 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5233 "0109 ACC to LOGO completes to NPort x%x refcnt %d "
5234 "Data: x%x x%x x%x\n",
5235 ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp->nlp_flag,
5236 ndlp->nlp_state, ndlp->nlp_rpi);
5238 /* This clause allows the LOGO ACC to complete and free resources
5239 * for the Fabric Domain Controller. It does deliberately skip
5240 * the unreg_rpi and release rpi because some fabrics send RDP
5241 * requests after logging out from the initiator.
5243 if (ndlp->nlp_type & NLP_FABRIC &&
5244 ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK))
5247 if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
5248 /* If PLOGI is being retried, PLOGI completion will cleanup the
5249 * node. The NLP_NPR_2B_DISC flag needs to be retained to make
5250 * progress on nodes discovered from last RSCN.
5252 if ((ndlp->nlp_flag & NLP_DELAY_TMO) &&
5253 (ndlp->nlp_last_elscmd == ELS_CMD_PLOGI))
5256 /* NPort Recovery mode or node is just allocated */
5257 if (!lpfc_nlp_not_used(ndlp)) {
5258 /* A LOGO is completing and the node is in NPR state.
5259 * Just unregister the RPI because the node is still
5262 lpfc_unreg_rpi(vport, ndlp);
5264 /* Indicate the node has already released, should
5265 * not reference to it from within lpfc_els_free_iocb.
5267 cmdiocb->ndlp = NULL;
5272 * The driver received a LOGO from the rport and has ACK'd it.
5273 * At this point, the driver is done so release the IOCB
5275 lpfc_els_free_iocb(phba, cmdiocb);
5280 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
5281 * @phba: pointer to lpfc hba data structure.
5282 * @pmb: pointer to the driver internal queue element for mailbox command.
5284 * This routine is the completion callback function for unregister default
5285 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
5286 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
5287 * decrements the ndlp reference count held for this completion callback
5288 * function. After that, it invokes the lpfc_nlp_not_used() to check
5289 * whether there is only one reference left on the ndlp. If so, it will
5290 * perform one more decrement and trigger the release of the ndlp.
5293 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5295 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp;
5296 u32 mbx_flag = pmb->mbox_flag;
5297 u32 mbx_cmd = pmb->u.mb.mbxCommand;
5300 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
5301 "0006 rpi x%x DID:%x flg:%x %d x%px "
5302 "mbx_cmd x%x mbx_flag x%x x%px\n",
5303 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
5304 kref_read(&ndlp->kref), ndlp, mbx_cmd,
5307 /* This ends the default/temporary RPI cleanup logic for this
5308 * ndlp and the node and rpi needs to be released. Free the rpi
5309 * first on an UNREG_LOGIN and then release the final
5312 spin_lock_irq(&ndlp->lock);
5313 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
5314 if (mbx_cmd == MBX_UNREG_LOGIN)
5315 ndlp->nlp_flag &= ~NLP_UNREG_INP;
5316 spin_unlock_irq(&ndlp->lock);
5318 lpfc_drop_node(ndlp->vport, ndlp);
5321 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
5325 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
5326 * @phba: pointer to lpfc hba data structure.
5327 * @cmdiocb: pointer to lpfc command iocb data structure.
5328 * @rspiocb: pointer to lpfc response iocb data structure.
5330 * This routine is the completion callback function for ELS Response IOCB
5331 * command. In normal case, this callback function just properly sets the
5332 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
5333 * field in the command IOCB is not NULL, the referred mailbox command will
5334 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
5338 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
5339 struct lpfc_iocbq *rspiocb)
5341 struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
5342 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
5343 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
5345 LPFC_MBOXQ_t *mbox = NULL;
5346 u32 ulp_status, ulp_word4, tmo, did, iotag;
5349 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5350 "3177 ELS response failed\n");
5353 if (cmdiocb->context_un.mbox)
5354 mbox = cmdiocb->context_un.mbox;
5356 ulp_status = get_job_ulpstatus(phba, rspiocb);
5357 ulp_word4 = get_job_word4(phba, rspiocb);
5358 did = get_job_els_rsp64_did(phba, cmdiocb);
5360 if (phba->sli_rev == LPFC_SLI_REV4) {
5361 tmo = get_wqe_tmo(cmdiocb);
5362 iotag = get_wqe_reqtag(cmdiocb);
5364 irsp = &rspiocb->iocb;
5365 tmo = irsp->ulpTimeout;
5366 iotag = irsp->ulpIoTag;
5369 /* Check to see if link went down during discovery */
5370 if (!ndlp || lpfc_els_chk_latt(vport)) {
5372 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
5376 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5377 "ELS rsp cmpl: status:x%x/x%x did:x%x",
5378 ulp_status, ulp_word4, did);
5379 /* ELS response tag <ulpIoTag> completes */
5380 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5381 "0110 ELS response tag x%x completes "
5382 "Data: x%x x%x x%x x%x x%x x%x x%x x%x %p %p\n",
5383 iotag, ulp_status, ulp_word4, tmo,
5384 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5385 ndlp->nlp_rpi, kref_read(&ndlp->kref), mbox, ndlp);
5388 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
5389 if (!lpfc_unreg_rpi(vport, ndlp) &&
5390 (!(vport->fc_flag & FC_PT2PT))) {
5391 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5393 NLP_STE_REG_LOGIN_ISSUE) {
5394 lpfc_printf_vlog(vport, KERN_INFO,
5398 "Data: x%x x%x x%x\n",
5407 /* Increment reference count to ndlp to hold the
5408 * reference to ndlp for the callback function.
5410 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
5411 if (!mbox->ctx_ndlp)
5414 mbox->vport = vport;
5415 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
5416 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
5417 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
5420 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
5421 ndlp->nlp_prev_state = ndlp->nlp_state;
5422 lpfc_nlp_set_state(vport, ndlp,
5423 NLP_STE_REG_LOGIN_ISSUE);
5426 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
5427 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
5428 != MBX_NOT_FINISHED)
5431 /* Decrement the ndlp reference count we
5432 * set for this failed mailbox command.
5435 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
5437 /* ELS rsp: Cannot issue reg_login for <NPortid> */
5438 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
5439 "0138 ELS rsp: Cannot issue reg_login for x%x "
5440 "Data: x%x x%x x%x\n",
5441 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5445 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
5448 if (ndlp && shost) {
5449 spin_lock_irq(&ndlp->lock);
5451 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN;
5452 ndlp->nlp_flag &= ~NLP_RM_DFLT_RPI;
5453 spin_unlock_irq(&ndlp->lock);
5456 /* An SLI4 NPIV instance wants to drop the node at this point under
5457 * these conditions and release the RPI.
5459 if (phba->sli_rev == LPFC_SLI_REV4 &&
5460 (vport && vport->port_type == LPFC_NPIV_PORT) &&
5461 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD) &&
5462 ndlp->nlp_flag & NLP_RELEASE_RPI) {
5463 if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE &&
5464 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
5465 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
5466 spin_lock_irq(&ndlp->lock);
5467 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
5468 ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
5469 spin_unlock_irq(&ndlp->lock);
5470 lpfc_drop_node(vport, ndlp);
5474 /* Release the originating I/O reference. */
5475 lpfc_els_free_iocb(phba, cmdiocb);
5481 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
5482 * @vport: pointer to a host virtual N_Port data structure.
5483 * @flag: the els command code to be accepted.
5484 * @oldiocb: pointer to the original lpfc command iocb data structure.
5485 * @ndlp: pointer to a node-list data structure.
5486 * @mbox: pointer to the driver internal queue element for mailbox command.
5488 * This routine prepares and issues an Accept (ACC) response IOCB
5489 * command. It uses the @flag to properly set up the IOCB field for the
5490 * specific ACC response command to be issued and invokes the
5491 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
5492 * @mbox pointer is passed in, it will be put into the context_un.mbox
5493 * field of the IOCB for the completion callback function to issue the
5494 * mailbox command to the HBA later when callback is invoked.
5496 * Note that the ndlp reference count will be incremented by 1 for holding the
5497 * ndlp and the reference to ndlp will be stored into the ndlp field of
5498 * the IOCB for the completion callback function to the corresponding
5499 * response ELS IOCB command.
5502 * 0 - Successfully issued acc response
5503 * 1 - Failed to issue acc response
5506 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
5507 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
5510 struct lpfc_hba *phba = vport->phba;
5513 union lpfc_wqe128 *wqe;
5514 union lpfc_wqe128 *oldwqe = &oldiocb->wqe;
5515 struct lpfc_iocbq *elsiocb;
5517 struct serv_parm *sp;
5520 ELS_PKT *els_pkt_ptr;
5521 struct fc_els_rdf_resp *rdf_resp;
5525 cmdsize = sizeof(uint32_t);
5526 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
5527 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
5529 spin_lock_irq(&ndlp->lock);
5530 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
5531 spin_unlock_irq(&ndlp->lock);
5535 if (phba->sli_rev == LPFC_SLI_REV4) {
5536 wqe = &elsiocb->wqe;
5538 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
5539 bf_get(wqe_ctxt_tag,
5540 &oldwqe->xmit_els_rsp.wqe_com));
5543 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
5545 &oldwqe->xmit_els_rsp.wqe_com));
5547 icmd = &elsiocb->iocb;
5548 oldcmd = &oldiocb->iocb;
5549 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
5550 icmd->unsli3.rcvsli3.ox_id =
5551 oldcmd->unsli3.rcvsli3.ox_id;
5554 pcmd = elsiocb->cmd_dmabuf->virt;
5555 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5556 pcmd += sizeof(uint32_t);
5558 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5559 "Issue ACC: did:x%x flg:x%x",
5560 ndlp->nlp_DID, ndlp->nlp_flag, 0);
5564 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
5565 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
5566 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
5570 if (phba->sli_rev == LPFC_SLI_REV4) {
5571 wqe = &elsiocb->wqe;
5573 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
5574 bf_get(wqe_ctxt_tag,
5575 &oldwqe->xmit_els_rsp.wqe_com));
5578 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
5580 &oldwqe->xmit_els_rsp.wqe_com));
5582 icmd = &elsiocb->iocb;
5583 oldcmd = &oldiocb->iocb;
5584 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
5585 icmd->unsli3.rcvsli3.ox_id =
5586 oldcmd->unsli3.rcvsli3.ox_id;
5589 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
5592 elsiocb->context_un.mbox = mbox;
5594 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
5595 pcmd += sizeof(uint32_t);
5596 sp = (struct serv_parm *)pcmd;
5598 if (flag == ELS_CMD_FLOGI) {
5599 /* Copy the received service parameters back */
5600 memcpy(sp, &phba->fc_fabparam,
5601 sizeof(struct serv_parm));
5603 /* Clear the F_Port bit */
5606 /* Mark all class service parameters as invalid */
5607 sp->cls1.classValid = 0;
5608 sp->cls2.classValid = 0;
5609 sp->cls3.classValid = 0;
5610 sp->cls4.classValid = 0;
5612 /* Copy our worldwide names */
5613 memcpy(&sp->portName, &vport->fc_sparam.portName,
5614 sizeof(struct lpfc_name));
5615 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
5616 sizeof(struct lpfc_name));
5618 memcpy(pcmd, &vport->fc_sparam,
5619 sizeof(struct serv_parm));
5621 sp->cmn.valid_vendor_ver_level = 0;
5622 memset(sp->un.vendorVersion, 0,
5623 sizeof(sp->un.vendorVersion));
5624 sp->cmn.bbRcvSizeMsb &= 0xF;
5626 /* If our firmware supports this feature, convey that
5627 * info to the target using the vendor specific field.
5629 if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) {
5630 sp->cmn.valid_vendor_ver_level = 1;
5631 sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID);
5633 cpu_to_be32(LPFC_VV_SUPPRESS_RSP);
5637 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5638 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
5639 ndlp->nlp_DID, ndlp->nlp_flag, 0);
5642 cmdsize = sizeof(uint32_t) + sizeof(PRLO);
5643 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
5644 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
5648 if (phba->sli_rev == LPFC_SLI_REV4) {
5649 wqe = &elsiocb->wqe;
5651 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
5652 bf_get(wqe_ctxt_tag,
5653 &oldwqe->xmit_els_rsp.wqe_com));
5656 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
5658 &oldwqe->xmit_els_rsp.wqe_com));
5660 icmd = &elsiocb->iocb;
5661 oldcmd = &oldiocb->iocb;
5662 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
5663 icmd->unsli3.rcvsli3.ox_id =
5664 oldcmd->unsli3.rcvsli3.ox_id;
5667 pcmd = (u8 *) elsiocb->cmd_dmabuf->virt;
5669 memcpy(pcmd, oldiocb->cmd_dmabuf->virt,
5670 sizeof(uint32_t) + sizeof(PRLO));
5671 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
5672 els_pkt_ptr = (ELS_PKT *) pcmd;
5673 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
5675 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5676 "Issue ACC PRLO: did:x%x flg:x%x",
5677 ndlp->nlp_DID, ndlp->nlp_flag, 0);
5680 cmdsize = sizeof(*rdf_resp);
5681 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
5682 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
5686 if (phba->sli_rev == LPFC_SLI_REV4) {
5687 wqe = &elsiocb->wqe;
5689 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
5690 bf_get(wqe_ctxt_tag,
5691 &oldwqe->xmit_els_rsp.wqe_com));
5694 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
5696 &oldwqe->xmit_els_rsp.wqe_com));
5698 icmd = &elsiocb->iocb;
5699 oldcmd = &oldiocb->iocb;
5700 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
5701 icmd->unsli3.rcvsli3.ox_id =
5702 oldcmd->unsli3.rcvsli3.ox_id;
5705 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
5706 rdf_resp = (struct fc_els_rdf_resp *)pcmd;
5707 memset(rdf_resp, 0, sizeof(*rdf_resp));
5708 rdf_resp->acc_hdr.la_cmd = ELS_LS_ACC;
5710 /* FC-LS-5 specifies desc_list_len shall be set to 12 */
5711 rdf_resp->desc_list_len = cpu_to_be32(12);
5713 /* FC-LS-5 specifies LS REQ Information descriptor */
5714 rdf_resp->lsri.desc_tag = cpu_to_be32(1);
5715 rdf_resp->lsri.desc_len = cpu_to_be32(sizeof(u32));
5716 rdf_resp->lsri.rqst_w0.cmd = ELS_RDF;
5721 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
5722 spin_lock_irq(&ndlp->lock);
5723 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
5724 ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
5725 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
5726 spin_unlock_irq(&ndlp->lock);
5727 elsiocb->cmd_cmpl = lpfc_cmpl_els_logo_acc;
5729 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
5732 phba->fc_stat.elsXmitACC++;
5733 elsiocb->ndlp = lpfc_nlp_get(ndlp);
5734 if (!elsiocb->ndlp) {
5735 lpfc_els_free_iocb(phba, elsiocb);
5739 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5740 if (rc == IOCB_ERROR) {
5741 lpfc_els_free_iocb(phba, elsiocb);
5746 /* Xmit ELS ACC response tag <ulpIoTag> */
5747 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5748 "0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, "
5749 "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x "
5750 "RPI: x%x, fc_flag x%x refcnt %d\n",
5751 rc, elsiocb->iotag, elsiocb->sli4_xritag,
5752 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5753 ndlp->nlp_rpi, vport->fc_flag, kref_read(&ndlp->kref));
5758 * lpfc_els_rsp_reject - Prepare and issue a rjt response iocb command
5759 * @vport: pointer to a virtual N_Port data structure.
5760 * @rejectError: reject response to issue
5761 * @oldiocb: pointer to the original lpfc command iocb data structure.
5762 * @ndlp: pointer to a node-list data structure.
5763 * @mbox: pointer to the driver internal queue element for mailbox command.
5765 * This routine prepares and issue an Reject (RJT) response IOCB
5766 * command. If a @mbox pointer is passed in, it will be put into the
5767 * context_un.mbox field of the IOCB for the completion callback function
5768 * to issue to the HBA later.
5770 * Note that the ndlp reference count will be incremented by 1 for holding the
5771 * ndlp and the reference to ndlp will be stored into the ndlp field of
5772 * the IOCB for the completion callback function to the reject response
5776 * 0 - Successfully issued reject response
5777 * 1 - Failed to issue reject response
5780 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
5781 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
5785 struct lpfc_hba *phba = vport->phba;
5788 union lpfc_wqe128 *wqe;
5789 struct lpfc_iocbq *elsiocb;
5793 cmdsize = 2 * sizeof(uint32_t);
5794 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
5795 ndlp->nlp_DID, ELS_CMD_LS_RJT);
5799 if (phba->sli_rev == LPFC_SLI_REV4) {
5800 wqe = &elsiocb->wqe;
5801 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
5802 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */
5803 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
5804 get_job_rcvoxid(phba, oldiocb));
5806 icmd = &elsiocb->iocb;
5807 oldcmd = &oldiocb->iocb;
5808 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
5809 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
5812 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
5814 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
5815 pcmd += sizeof(uint32_t);
5816 *((uint32_t *) (pcmd)) = rejectError;
5819 elsiocb->context_un.mbox = mbox;
5821 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
5822 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5823 "0129 Xmit ELS RJT x%x response tag x%x "
5824 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
5826 rejectError, elsiocb->iotag,
5827 get_job_ulpcontext(phba, elsiocb), ndlp->nlp_DID,
5828 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
5829 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5830 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
5831 ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
5833 phba->fc_stat.elsXmitLSRJT++;
5834 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
5835 elsiocb->ndlp = lpfc_nlp_get(ndlp);
5836 if (!elsiocb->ndlp) {
5837 lpfc_els_free_iocb(phba, elsiocb);
5841 /* The NPIV instance is rejecting this unsolicited ELS. Make sure the
5842 * node's assigned RPI gets released provided this node is not already
5843 * registered with the transport.
5845 if (phba->sli_rev == LPFC_SLI_REV4 &&
5846 vport->port_type == LPFC_NPIV_PORT &&
5847 !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) {
5848 spin_lock_irq(&ndlp->lock);
5849 ndlp->nlp_flag |= NLP_RELEASE_RPI;
5850 spin_unlock_irq(&ndlp->lock);
5853 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5854 if (rc == IOCB_ERROR) {
5855 lpfc_els_free_iocb(phba, elsiocb);
5864 * lpfc_issue_els_edc_rsp - Exchange Diagnostic Capabilities with the fabric.
5865 * @vport: pointer to a host virtual N_Port data structure.
5866 * @cmdiocb: pointer to the original lpfc command iocb data structure.
5867 * @ndlp: NPort to where rsp is directed
5869 * This routine issues an EDC ACC RSP to the F-Port Controller to communicate
5870 * this N_Port's support of hardware signals in its Congestion
5871 * Capabilities Descriptor.
5874 * 0 - Successfully issued edc rsp command
5875 * 1 - Failed to issue edc rsp command
5878 lpfc_issue_els_edc_rsp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5879 struct lpfc_nodelist *ndlp)
5881 struct lpfc_hba *phba = vport->phba;
5882 struct fc_els_edc_resp *edc_rsp;
5883 struct fc_tlv_desc *tlv;
5884 struct lpfc_iocbq *elsiocb;
5886 union lpfc_wqe128 *wqe;
5887 u32 cgn_desc_size, lft_desc_size;
5892 cmdsize = sizeof(struct fc_els_edc_resp);
5893 cgn_desc_size = sizeof(struct fc_diag_cg_sig_desc);
5894 lft_desc_size = (lpfc_link_is_lds_capable(phba)) ?
5895 sizeof(struct fc_diag_lnkflt_desc) : 0;
5896 cmdsize += cgn_desc_size + lft_desc_size;
5897 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, cmdiocb->retry,
5898 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
5902 if (phba->sli_rev == LPFC_SLI_REV4) {
5903 wqe = &elsiocb->wqe;
5904 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
5905 get_job_ulpcontext(phba, cmdiocb)); /* Xri / rx_id */
5906 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
5907 get_job_rcvoxid(phba, cmdiocb));
5909 icmd = &elsiocb->iocb;
5910 cmd = &cmdiocb->iocb;
5911 icmd->ulpContext = cmd->ulpContext; /* Xri / rx_id */
5912 icmd->unsli3.rcvsli3.ox_id = cmd->unsli3.rcvsli3.ox_id;
5915 pcmd = elsiocb->cmd_dmabuf->virt;
5916 memset(pcmd, 0, cmdsize);
5918 edc_rsp = (struct fc_els_edc_resp *)pcmd;
5919 edc_rsp->acc_hdr.la_cmd = ELS_LS_ACC;
5920 edc_rsp->desc_list_len = cpu_to_be32(sizeof(struct fc_els_lsri_desc) +
5921 cgn_desc_size + lft_desc_size);
5922 edc_rsp->lsri.desc_tag = cpu_to_be32(ELS_DTAG_LS_REQ_INFO);
5923 edc_rsp->lsri.desc_len = cpu_to_be32(
5924 FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_els_lsri_desc));
5925 edc_rsp->lsri.rqst_w0.cmd = ELS_EDC;
5926 tlv = edc_rsp->desc;
5927 lpfc_format_edc_cgn_desc(phba, tlv);
5928 tlv = fc_tlv_next_desc(tlv);
5930 lpfc_format_edc_lft_desc(phba, tlv);
5932 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
5933 "Issue EDC ACC: did:x%x flg:x%x refcnt %d",
5934 ndlp->nlp_DID, ndlp->nlp_flag,
5935 kref_read(&ndlp->kref));
5936 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
5938 phba->fc_stat.elsXmitACC++;
5939 elsiocb->ndlp = lpfc_nlp_get(ndlp);
5940 if (!elsiocb->ndlp) {
5941 lpfc_els_free_iocb(phba, elsiocb);
5945 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5946 if (rc == IOCB_ERROR) {
5947 lpfc_els_free_iocb(phba, elsiocb);
5952 /* Xmit ELS ACC response tag <ulpIoTag> */
5953 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5954 "0152 Xmit EDC ACC response Status: x%x, IoTag: x%x, "
5955 "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x "
5956 "RPI: x%x, fc_flag x%x\n",
5957 rc, elsiocb->iotag, elsiocb->sli4_xritag,
5958 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
5959 ndlp->nlp_rpi, vport->fc_flag);
5965 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
5966 * @vport: pointer to a virtual N_Port data structure.
5967 * @oldiocb: pointer to the original lpfc command iocb data structure.
5968 * @ndlp: pointer to a node-list data structure.
5970 * This routine prepares and issues an Accept (ACC) response to Address
5971 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
5972 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
5974 * Note that the ndlp reference count will be incremented by 1 for holding the
5975 * ndlp and the reference to ndlp will be stored into the ndlp field of
5976 * the IOCB for the completion callback function to the ADISC Accept response
5980 * 0 - Successfully issued acc adisc response
5981 * 1 - Failed to issue adisc acc response
5984 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
5985 struct lpfc_nodelist *ndlp)
5987 struct lpfc_hba *phba = vport->phba;
5989 IOCB_t *icmd, *oldcmd;
5990 union lpfc_wqe128 *wqe;
5991 struct lpfc_iocbq *elsiocb;
5997 cmdsize = sizeof(uint32_t) + sizeof(ADISC);
5998 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
5999 ndlp->nlp_DID, ELS_CMD_ACC);
6003 if (phba->sli_rev == LPFC_SLI_REV4) {
6004 wqe = &elsiocb->wqe;
6006 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
6007 get_job_ulpcontext(phba, oldiocb));
6008 ulp_context = get_job_ulpcontext(phba, elsiocb);
6010 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
6011 get_job_rcvoxid(phba, oldiocb));
6013 icmd = &elsiocb->iocb;
6014 oldcmd = &oldiocb->iocb;
6015 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
6016 ulp_context = elsiocb->iocb.ulpContext;
6017 icmd->unsli3.rcvsli3.ox_id =
6018 oldcmd->unsli3.rcvsli3.ox_id;
6021 /* Xmit ADISC ACC response tag <ulpIoTag> */
6022 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6023 "0130 Xmit ADISC ACC response iotag x%x xri: "
6024 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
6025 elsiocb->iotag, ulp_context,
6026 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6028 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
6030 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6031 pcmd += sizeof(uint32_t);
6033 ap = (ADISC *) (pcmd);
6034 ap->hardAL_PA = phba->fc_pref_ALPA;
6035 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
6036 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
6037 ap->DID = be32_to_cpu(vport->fc_myDID);
6039 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
6040 "Issue ACC ADISC: did:x%x flg:x%x refcnt %d",
6041 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
6043 phba->fc_stat.elsXmitACC++;
6044 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
6045 elsiocb->ndlp = lpfc_nlp_get(ndlp);
6046 if (!elsiocb->ndlp) {
6047 lpfc_els_free_iocb(phba, elsiocb);
6051 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6052 if (rc == IOCB_ERROR) {
6053 lpfc_els_free_iocb(phba, elsiocb);
6062 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
6063 * @vport: pointer to a virtual N_Port data structure.
6064 * @oldiocb: pointer to the original lpfc command iocb data structure.
6065 * @ndlp: pointer to a node-list data structure.
6067 * This routine prepares and issues an Accept (ACC) response to Process
6068 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
6069 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
6071 * Note that the ndlp reference count will be incremented by 1 for holding the
6072 * ndlp and the reference to ndlp will be stored into the ndlp field of
6073 * the IOCB for the completion callback function to the PRLI Accept response
6077 * 0 - Successfully issued acc prli response
6078 * 1 - Failed to issue acc prli response
6081 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
6082 struct lpfc_nodelist *ndlp)
6084 struct lpfc_hba *phba = vport->phba;
6086 struct lpfc_nvme_prli *npr_nvme;
6090 union lpfc_wqe128 *wqe;
6091 struct lpfc_iocbq *elsiocb;
6094 uint32_t prli_fc4_req, *req_payload;
6095 struct lpfc_dmabuf *req_buf;
6097 u32 elsrspcmd, ulp_context;
6099 /* Need the incoming PRLI payload to determine if the ACC is for an
6100 * FC4 or NVME PRLI type. The PRLI type is at word 1.
6102 req_buf = oldiocb->cmd_dmabuf;
6103 req_payload = (((uint32_t *)req_buf->virt) + 1);
6105 /* PRLI type payload is at byte 3 for FCP or NVME. */
6106 prli_fc4_req = be32_to_cpu(*req_payload);
6107 prli_fc4_req = (prli_fc4_req >> 24) & 0xff;
6108 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6109 "6127 PRLI_ACC: Req Type x%x, Word1 x%08x\n",
6110 prli_fc4_req, *((uint32_t *)req_payload));
6112 if (prli_fc4_req == PRLI_FCP_TYPE) {
6113 cmdsize = sizeof(uint32_t) + sizeof(PRLI);
6114 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
6115 } else if (prli_fc4_req == PRLI_NVME_TYPE) {
6116 cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli);
6117 elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK));
6122 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
6123 ndlp->nlp_DID, elsrspcmd);
6127 if (phba->sli_rev == LPFC_SLI_REV4) {
6128 wqe = &elsiocb->wqe;
6129 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
6130 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */
6131 ulp_context = get_job_ulpcontext(phba, elsiocb);
6132 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
6133 get_job_rcvoxid(phba, oldiocb));
6135 icmd = &elsiocb->iocb;
6136 oldcmd = &oldiocb->iocb;
6137 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
6138 ulp_context = elsiocb->iocb.ulpContext;
6139 icmd->unsli3.rcvsli3.ox_id =
6140 oldcmd->unsli3.rcvsli3.ox_id;
6143 /* Xmit PRLI ACC response tag <ulpIoTag> */
6144 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6145 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
6146 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6147 elsiocb->iotag, ulp_context,
6148 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6150 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
6151 memset(pcmd, 0, cmdsize);
6153 *((uint32_t *)(pcmd)) = elsrspcmd;
6154 pcmd += sizeof(uint32_t);
6156 /* For PRLI, remainder of payload is PRLI parameter page */
6159 if (prli_fc4_req == PRLI_FCP_TYPE) {
6161 * If the remote port is a target and our firmware version
6162 * is 3.20 or later, set the following bits for FC-TAPE
6165 npr = (PRLI *) pcmd;
6166 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
6167 (vpd->rev.feaLevelHigh >= 0x02)) {
6168 npr->ConfmComplAllowed = 1;
6170 npr->TaskRetryIdReq = 1;
6172 npr->acceptRspCode = PRLI_REQ_EXECUTED;
6173 npr->estabImagePair = 1;
6174 npr->readXferRdyDis = 1;
6175 npr->ConfmComplAllowed = 1;
6176 npr->prliType = PRLI_FCP_TYPE;
6177 npr->initiatorFunc = 1;
6178 } else if (prli_fc4_req == PRLI_NVME_TYPE) {
6179 /* Respond with an NVME PRLI Type */
6180 npr_nvme = (struct lpfc_nvme_prli *) pcmd;
6181 bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
6182 bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */
6183 bf_set(prli_acc_rsp_code, npr_nvme, PRLI_REQ_EXECUTED);
6184 if (phba->nvmet_support) {
6185 bf_set(prli_tgt, npr_nvme, 1);
6186 bf_set(prli_disc, npr_nvme, 1);
6187 if (phba->cfg_nvme_enable_fb) {
6188 bf_set(prli_fba, npr_nvme, 1);
6190 /* TBD. Target mode needs to post buffers
6191 * that support the configured first burst
6194 bf_set(prli_fb_sz, npr_nvme,
6195 phba->cfg_nvmet_fb_size);
6198 bf_set(prli_init, npr_nvme, 1);
6201 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
6202 "6015 NVME issue PRLI ACC word1 x%08x "
6203 "word4 x%08x word5 x%08x flag x%x, "
6204 "fcp_info x%x nlp_type x%x\n",
6205 npr_nvme->word1, npr_nvme->word4,
6206 npr_nvme->word5, ndlp->nlp_flag,
6207 ndlp->nlp_fcp_info, ndlp->nlp_type);
6208 npr_nvme->word1 = cpu_to_be32(npr_nvme->word1);
6209 npr_nvme->word4 = cpu_to_be32(npr_nvme->word4);
6210 npr_nvme->word5 = cpu_to_be32(npr_nvme->word5);
6212 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6213 "6128 Unknown FC_TYPE x%x x%x ndlp x%06x\n",
6214 prli_fc4_req, ndlp->nlp_fc4_type,
6217 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
6218 "Issue ACC PRLI: did:x%x flg:x%x",
6219 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
6221 phba->fc_stat.elsXmitACC++;
6222 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
6223 elsiocb->ndlp = lpfc_nlp_get(ndlp);
6224 if (!elsiocb->ndlp) {
6225 lpfc_els_free_iocb(phba, elsiocb);
6229 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6230 if (rc == IOCB_ERROR) {
6231 lpfc_els_free_iocb(phba, elsiocb);
6240 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
6241 * @vport: pointer to a virtual N_Port data structure.
6242 * @format: rnid command format.
6243 * @oldiocb: pointer to the original lpfc command iocb data structure.
6244 * @ndlp: pointer to a node-list data structure.
6246 * This routine issues a Request Node Identification Data (RNID) Accept
6247 * (ACC) response. It constructs the RNID ACC response command according to
6248 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
6249 * issue the response.
6251 * Note that the ndlp reference count will be incremented by 1 for holding the
6252 * ndlp and the reference to ndlp will be stored into the ndlp field of
6253 * the IOCB for the completion callback function.
6256 * 0 - Successfully issued acc rnid response
6257 * 1 - Failed to issue acc rnid response
6260 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
6261 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
6263 struct lpfc_hba *phba = vport->phba;
6265 IOCB_t *icmd, *oldcmd;
6266 union lpfc_wqe128 *wqe;
6267 struct lpfc_iocbq *elsiocb;
6273 cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
6274 + (2 * sizeof(struct lpfc_name));
6276 cmdsize += sizeof(RNID_TOP_DISC);
6278 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
6279 ndlp->nlp_DID, ELS_CMD_ACC);
6283 if (phba->sli_rev == LPFC_SLI_REV4) {
6284 wqe = &elsiocb->wqe;
6285 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
6286 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */
6287 ulp_context = get_job_ulpcontext(phba, elsiocb);
6288 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
6289 get_job_rcvoxid(phba, oldiocb));
6291 icmd = &elsiocb->iocb;
6292 oldcmd = &oldiocb->iocb;
6293 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
6294 ulp_context = elsiocb->iocb.ulpContext;
6295 icmd->unsli3.rcvsli3.ox_id =
6296 oldcmd->unsli3.rcvsli3.ox_id;
6299 /* Xmit RNID ACC response tag <ulpIoTag> */
6300 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6301 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
6302 elsiocb->iotag, ulp_context);
6303 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
6304 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6305 pcmd += sizeof(uint32_t);
6307 memset(pcmd, 0, sizeof(RNID));
6308 rn = (RNID *) (pcmd);
6309 rn->Format = format;
6310 rn->CommonLen = (2 * sizeof(struct lpfc_name));
6311 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
6312 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
6315 rn->SpecificLen = 0;
6317 case RNID_TOPOLOGY_DISC:
6318 rn->SpecificLen = sizeof(RNID_TOP_DISC);
6319 memcpy(&rn->un.topologyDisc.portName,
6320 &vport->fc_portname, sizeof(struct lpfc_name));
6321 rn->un.topologyDisc.unitType = RNID_HBA;
6322 rn->un.topologyDisc.physPort = 0;
6323 rn->un.topologyDisc.attachedNodes = 0;
6327 rn->SpecificLen = 0;
6331 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
6332 "Issue ACC RNID: did:x%x flg:x%x refcnt %d",
6333 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
6335 phba->fc_stat.elsXmitACC++;
6336 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
6337 elsiocb->ndlp = lpfc_nlp_get(ndlp);
6338 if (!elsiocb->ndlp) {
6339 lpfc_els_free_iocb(phba, elsiocb);
6343 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6344 if (rc == IOCB_ERROR) {
6345 lpfc_els_free_iocb(phba, elsiocb);
6354 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
6355 * @vport: pointer to a virtual N_Port data structure.
6356 * @iocb: pointer to the lpfc command iocb data structure.
6357 * @ndlp: pointer to a node-list data structure.
6362 lpfc_els_clear_rrq(struct lpfc_vport *vport,
6363 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
6365 struct lpfc_hba *phba = vport->phba;
6370 struct lpfc_node_rrq *prrq;
6373 pcmd = (uint8_t *)iocb->cmd_dmabuf->virt;
6374 pcmd += sizeof(uint32_t);
6375 rrq = (struct RRQ *)pcmd;
6376 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
6377 rxid = bf_get(rrq_rxid, rrq);
6379 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6380 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
6382 be32_to_cpu(bf_get(rrq_did, rrq)),
6383 bf_get(rrq_oxid, rrq),
6385 get_wqe_reqtag(iocb),
6386 get_job_ulpcontext(phba, iocb));
6388 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
6389 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
6390 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
6391 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
6392 xri = bf_get(rrq_oxid, rrq);
6395 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
6397 lpfc_clr_rrq_active(phba, xri, prrq);
6402 * lpfc_els_rsp_echo_acc - Issue echo acc response
6403 * @vport: pointer to a virtual N_Port data structure.
6404 * @data: pointer to echo data to return in the accept.
6405 * @oldiocb: pointer to the original lpfc command iocb data structure.
6406 * @ndlp: pointer to a node-list data structure.
6409 * 0 - Successfully issued acc echo response
6410 * 1 - Failed to issue acc echo response
6413 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
6414 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
6416 struct lpfc_hba *phba = vport->phba;
6417 IOCB_t *icmd, *oldcmd;
6418 union lpfc_wqe128 *wqe;
6419 struct lpfc_iocbq *elsiocb;
6425 if (phba->sli_rev == LPFC_SLI_REV4)
6426 cmdsize = oldiocb->wcqe_cmpl.total_data_placed;
6428 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
6430 /* The accumulated length can exceed the BPL_SIZE. For
6431 * now, use this as the limit
6433 if (cmdsize > LPFC_BPL_SIZE)
6434 cmdsize = LPFC_BPL_SIZE;
6435 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
6436 ndlp->nlp_DID, ELS_CMD_ACC);
6440 if (phba->sli_rev == LPFC_SLI_REV4) {
6441 wqe = &elsiocb->wqe;
6442 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
6443 get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */
6444 ulp_context = get_job_ulpcontext(phba, elsiocb);
6445 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
6446 get_job_rcvoxid(phba, oldiocb));
6448 icmd = &elsiocb->iocb;
6449 oldcmd = &oldiocb->iocb;
6450 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
6451 ulp_context = elsiocb->iocb.ulpContext;
6452 icmd->unsli3.rcvsli3.ox_id =
6453 oldcmd->unsli3.rcvsli3.ox_id;
6456 /* Xmit ECHO ACC response tag <ulpIoTag> */
6457 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6458 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
6459 elsiocb->iotag, ulp_context);
6460 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
6461 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6462 pcmd += sizeof(uint32_t);
6463 memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
6465 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
6466 "Issue ACC ECHO: did:x%x flg:x%x refcnt %d",
6467 ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
6469 phba->fc_stat.elsXmitACC++;
6470 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
6471 elsiocb->ndlp = lpfc_nlp_get(ndlp);
6472 if (!elsiocb->ndlp) {
6473 lpfc_els_free_iocb(phba, elsiocb);
6477 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6478 if (rc == IOCB_ERROR) {
6479 lpfc_els_free_iocb(phba, elsiocb);
6488 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
6489 * @vport: pointer to a host virtual N_Port data structure.
6491 * This routine issues Address Discover (ADISC) ELS commands to those
6492 * N_Ports which are in node port recovery state and ADISC has not been issued
6493 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
6494 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
6495 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
6496 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
6497 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
6498 * IOCBs quit for later pick up. On the other hand, after walking through
6499 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
6500 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
6501 * no more ADISC need to be sent.
6504 * The number of N_Ports with adisc issued.
6507 lpfc_els_disc_adisc(struct lpfc_vport *vport)
6509 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6510 struct lpfc_nodelist *ndlp, *next_ndlp;
6513 /* go thru NPR nodes and issue any remaining ELS ADISCs */
6514 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
6516 if (ndlp->nlp_state != NLP_STE_NPR_NODE ||
6517 !(ndlp->nlp_flag & NLP_NPR_ADISC))
6520 spin_lock_irq(&ndlp->lock);
6521 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
6522 spin_unlock_irq(&ndlp->lock);
6524 if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
6525 /* This node was marked for ADISC but was not picked
6526 * for discovery. This is possible if the node was
6527 * missing in gidft response.
6529 * At time of marking node for ADISC, we skipped unreg
6532 lpfc_nlp_unreg_node(vport, ndlp);
6533 lpfc_unreg_rpi(vport, ndlp);
6537 ndlp->nlp_prev_state = ndlp->nlp_state;
6538 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
6539 lpfc_issue_els_adisc(vport, ndlp, 0);
6541 vport->num_disc_nodes++;
6542 if (vport->num_disc_nodes >=
6543 vport->cfg_discovery_threads) {
6544 spin_lock_irq(shost->host_lock);
6545 vport->fc_flag |= FC_NLP_MORE;
6546 spin_unlock_irq(shost->host_lock);
6551 if (sentadisc == 0) {
6552 spin_lock_irq(shost->host_lock);
6553 vport->fc_flag &= ~FC_NLP_MORE;
6554 spin_unlock_irq(shost->host_lock);
6560 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
6561 * @vport: pointer to a host virtual N_Port data structure.
6563 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
6564 * which are in node port recovery state, with a @vport. Each time an ELS
6565 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
6566 * the per @vport number of discover count (num_disc_nodes) shall be
6567 * incremented. If the num_disc_nodes reaches a pre-configured threshold
6568 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
6569 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
6570 * later pick up. On the other hand, after walking through all the ndlps with
6571 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
6572 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
6573 * PLOGI need to be sent.
6576 * The number of N_Ports with plogi issued.
6579 lpfc_els_disc_plogi(struct lpfc_vport *vport)
6581 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6582 struct lpfc_nodelist *ndlp, *next_ndlp;
6585 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
6586 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
6587 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
6588 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
6589 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
6590 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
6591 ndlp->nlp_prev_state = ndlp->nlp_state;
6592 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
6593 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
6595 vport->num_disc_nodes++;
6596 if (vport->num_disc_nodes >=
6597 vport->cfg_discovery_threads) {
6598 spin_lock_irq(shost->host_lock);
6599 vport->fc_flag |= FC_NLP_MORE;
6600 spin_unlock_irq(shost->host_lock);
6606 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
6607 "6452 Discover PLOGI %d flag x%x\n",
6608 sentplogi, vport->fc_flag);
6611 lpfc_set_disctmo(vport);
6614 spin_lock_irq(shost->host_lock);
6615 vport->fc_flag &= ~FC_NLP_MORE;
6616 spin_unlock_irq(shost->host_lock);
6622 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
6626 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
6627 desc->payload.els_req = word0;
6628 desc->length = cpu_to_be32(sizeof(desc->payload));
6630 return sizeof(struct fc_rdp_link_service_desc);
6634 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
6635 uint8_t *page_a0, uint8_t *page_a2)
6637 uint16_t wavelength;
6638 uint16_t temperature;
6644 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
6645 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
6647 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
6649 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
6650 &page_a0[SSF_TRANSCEIVER_CODE_B4];
6651 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
6652 &page_a0[SSF_TRANSCEIVER_CODE_B5];
6654 if ((trasn_code_byte4->fc_sw_laser) ||
6655 (trasn_code_byte5->fc_sw_laser_sl) ||
6656 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
6657 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
6658 } else if (trasn_code_byte4->fc_lw_laser) {
6659 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
6660 page_a0[SSF_WAVELENGTH_B0];
6661 if (wavelength == SFP_WAVELENGTH_LC1310)
6662 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
6663 if (wavelength == SFP_WAVELENGTH_LL1550)
6664 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
6666 /* check if its SFP+ */
6667 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
6668 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
6669 << SFP_FLAG_CT_SHIFT;
6671 /* check if its OPTICAL */
6672 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
6673 SFP_FLAG_IS_OPTICAL_PORT : 0)
6674 << SFP_FLAG_IS_OPTICAL_SHIFT;
6676 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
6677 page_a2[SFF_TEMPERATURE_B0]);
6678 vcc = (page_a2[SFF_VCC_B1] << 8 |
6679 page_a2[SFF_VCC_B0]);
6680 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
6681 page_a2[SFF_TXPOWER_B0]);
6682 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
6683 page_a2[SFF_TX_BIAS_CURRENT_B0]);
6684 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
6685 page_a2[SFF_RXPOWER_B0]);
6686 desc->sfp_info.temperature = cpu_to_be16(temperature);
6687 desc->sfp_info.rx_power = cpu_to_be16(rx_power);
6688 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
6689 desc->sfp_info.tx_power = cpu_to_be16(tx_power);
6690 desc->sfp_info.vcc = cpu_to_be16(vcc);
6692 desc->sfp_info.flags = cpu_to_be16(flag);
6693 desc->length = cpu_to_be32(sizeof(desc->sfp_info));
6695 return sizeof(struct fc_rdp_sfp_desc);
6699 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
6704 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
6706 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
6708 desc->info.port_type = cpu_to_be32(type);
6710 desc->info.link_status.link_failure_cnt =
6711 cpu_to_be32(stat->linkFailureCnt);
6712 desc->info.link_status.loss_of_synch_cnt =
6713 cpu_to_be32(stat->lossSyncCnt);
6714 desc->info.link_status.loss_of_signal_cnt =
6715 cpu_to_be32(stat->lossSignalCnt);
6716 desc->info.link_status.primitive_seq_proto_err =
6717 cpu_to_be32(stat->primSeqErrCnt);
6718 desc->info.link_status.invalid_trans_word =
6719 cpu_to_be32(stat->invalidXmitWord);
6720 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
6722 desc->length = cpu_to_be32(sizeof(desc->info));
6724 return sizeof(struct fc_rdp_link_error_status_desc);
6728 lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
6729 struct lpfc_vport *vport)
6733 desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG);
6735 bbCredit = vport->fc_sparam.cmn.bbCreditLsb |
6736 (vport->fc_sparam.cmn.bbCreditMsb << 8);
6737 desc->bbc_info.port_bbc = cpu_to_be32(bbCredit);
6738 if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
6739 bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb |
6740 (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8);
6741 desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit);
6743 desc->bbc_info.attached_port_bbc = 0;
6746 desc->bbc_info.rtt = 0;
6747 desc->length = cpu_to_be32(sizeof(desc->bbc_info));
6749 return sizeof(struct fc_rdp_bbc_desc);
6753 lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba,
6754 struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
6758 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
6760 desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM];
6761 desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM];
6762 desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING];
6763 desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING];
6765 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
6766 flags |= RDP_OET_HIGH_ALARM;
6767 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
6768 flags |= RDP_OET_LOW_ALARM;
6769 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
6770 flags |= RDP_OET_HIGH_WARNING;
6771 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
6772 flags |= RDP_OET_LOW_WARNING;
6774 flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT);
6775 desc->oed_info.function_flags = cpu_to_be32(flags);
6776 desc->length = cpu_to_be32(sizeof(desc->oed_info));
6777 return sizeof(struct fc_rdp_oed_sfp_desc);
6781 lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba,
6782 struct fc_rdp_oed_sfp_desc *desc,
6787 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
6789 desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM];
6790 desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM];
6791 desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING];
6792 desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING];
6794 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
6795 flags |= RDP_OET_HIGH_ALARM;
6796 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE)
6797 flags |= RDP_OET_LOW_ALARM;
6798 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
6799 flags |= RDP_OET_HIGH_WARNING;
6800 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE)
6801 flags |= RDP_OET_LOW_WARNING;
6803 flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT);
6804 desc->oed_info.function_flags = cpu_to_be32(flags);
6805 desc->length = cpu_to_be32(sizeof(desc->oed_info));
6806 return sizeof(struct fc_rdp_oed_sfp_desc);
6810 lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba,
6811 struct fc_rdp_oed_sfp_desc *desc,
6816 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
6818 desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM];
6819 desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM];
6820 desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING];
6821 desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING];
6823 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS)
6824 flags |= RDP_OET_HIGH_ALARM;
6825 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS)
6826 flags |= RDP_OET_LOW_ALARM;
6827 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS)
6828 flags |= RDP_OET_HIGH_WARNING;
6829 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS)
6830 flags |= RDP_OET_LOW_WARNING;
6832 flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT);
6833 desc->oed_info.function_flags = cpu_to_be32(flags);
6834 desc->length = cpu_to_be32(sizeof(desc->oed_info));
6835 return sizeof(struct fc_rdp_oed_sfp_desc);
6839 lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba,
6840 struct fc_rdp_oed_sfp_desc *desc,
6845 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
6847 desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM];
6848 desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM];
6849 desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING];
6850 desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING];
6852 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER)
6853 flags |= RDP_OET_HIGH_ALARM;
6854 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER)
6855 flags |= RDP_OET_LOW_ALARM;
6856 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER)
6857 flags |= RDP_OET_HIGH_WARNING;
6858 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER)
6859 flags |= RDP_OET_LOW_WARNING;
6861 flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT);
6862 desc->oed_info.function_flags = cpu_to_be32(flags);
6863 desc->length = cpu_to_be32(sizeof(desc->oed_info));
6864 return sizeof(struct fc_rdp_oed_sfp_desc);
6869 lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba,
6870 struct fc_rdp_oed_sfp_desc *desc,
6875 desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
6877 desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM];
6878 desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM];
6879 desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING];
6880 desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING];
6882 if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER)
6883 flags |= RDP_OET_HIGH_ALARM;
6884 if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER)
6885 flags |= RDP_OET_LOW_ALARM;
6886 if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER)
6887 flags |= RDP_OET_HIGH_WARNING;
6888 if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER)
6889 flags |= RDP_OET_LOW_WARNING;
6891 flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT);
6892 desc->oed_info.function_flags = cpu_to_be32(flags);
6893 desc->length = cpu_to_be32(sizeof(desc->oed_info));
6894 return sizeof(struct fc_rdp_oed_sfp_desc);
6898 lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
6899 uint8_t *page_a0, struct lpfc_vport *vport)
6901 desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG);
6902 memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16);
6903 memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16);
6904 memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16);
6905 memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 4);
6906 memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8);
6907 desc->length = cpu_to_be32(sizeof(desc->opd_info));
6908 return sizeof(struct fc_rdp_opd_sfp_desc);
6912 lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
6914 if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
6916 desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG);
6918 desc->info.CorrectedBlocks =
6919 cpu_to_be32(stat->fecCorrBlkCount);
6920 desc->info.UncorrectableBlocks =
6921 cpu_to_be32(stat->fecUncorrBlkCount);
6923 desc->length = cpu_to_be32(sizeof(desc->info));
6925 return sizeof(struct fc_fec_rdp_desc);
6929 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
6931 uint16_t rdp_cap = 0;
6934 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
6936 switch (phba->fc_linkspeed) {
6937 case LPFC_LINK_SPEED_1GHZ:
6938 rdp_speed = RDP_PS_1GB;
6940 case LPFC_LINK_SPEED_2GHZ:
6941 rdp_speed = RDP_PS_2GB;
6943 case LPFC_LINK_SPEED_4GHZ:
6944 rdp_speed = RDP_PS_4GB;
6946 case LPFC_LINK_SPEED_8GHZ:
6947 rdp_speed = RDP_PS_8GB;
6949 case LPFC_LINK_SPEED_10GHZ:
6950 rdp_speed = RDP_PS_10GB;
6952 case LPFC_LINK_SPEED_16GHZ:
6953 rdp_speed = RDP_PS_16GB;
6955 case LPFC_LINK_SPEED_32GHZ:
6956 rdp_speed = RDP_PS_32GB;
6958 case LPFC_LINK_SPEED_64GHZ:
6959 rdp_speed = RDP_PS_64GB;
6961 case LPFC_LINK_SPEED_128GHZ:
6962 rdp_speed = RDP_PS_128GB;
6964 case LPFC_LINK_SPEED_256GHZ:
6965 rdp_speed = RDP_PS_256GB;
6968 rdp_speed = RDP_PS_UNKNOWN;
6972 desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
6974 if (phba->lmt & LMT_256Gb)
6975 rdp_cap |= RDP_PS_256GB;
6976 if (phba->lmt & LMT_128Gb)
6977 rdp_cap |= RDP_PS_128GB;
6978 if (phba->lmt & LMT_64Gb)
6979 rdp_cap |= RDP_PS_64GB;
6980 if (phba->lmt & LMT_32Gb)
6981 rdp_cap |= RDP_PS_32GB;
6982 if (phba->lmt & LMT_16Gb)
6983 rdp_cap |= RDP_PS_16GB;
6984 if (phba->lmt & LMT_10Gb)
6985 rdp_cap |= RDP_PS_10GB;
6986 if (phba->lmt & LMT_8Gb)
6987 rdp_cap |= RDP_PS_8GB;
6988 if (phba->lmt & LMT_4Gb)
6989 rdp_cap |= RDP_PS_4GB;
6990 if (phba->lmt & LMT_2Gb)
6991 rdp_cap |= RDP_PS_2GB;
6992 if (phba->lmt & LMT_1Gb)
6993 rdp_cap |= RDP_PS_1GB;
6996 rdp_cap = RDP_CAP_UNKNOWN;
6997 if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO)
6998 rdp_cap |= RDP_CAP_USER_CONFIGURED;
7000 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
7001 desc->length = cpu_to_be32(sizeof(desc->info));
7002 return sizeof(struct fc_rdp_port_speed_desc);
7006 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
7007 struct lpfc_vport *vport)
7010 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
7012 memcpy(desc->port_names.wwnn, &vport->fc_nodename,
7013 sizeof(desc->port_names.wwnn));
7015 memcpy(desc->port_names.wwpn, &vport->fc_portname,
7016 sizeof(desc->port_names.wwpn));
7018 desc->length = cpu_to_be32(sizeof(desc->port_names));
7019 return sizeof(struct fc_rdp_port_name_desc);
7023 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
7024 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
7027 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
7028 if (vport->fc_flag & FC_FABRIC) {
7029 memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
7030 sizeof(desc->port_names.wwnn));
7032 memcpy(desc->port_names.wwpn, &vport->fabric_portname,
7033 sizeof(desc->port_names.wwpn));
7034 } else { /* Point to Point */
7035 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
7036 sizeof(desc->port_names.wwnn));
7038 memcpy(desc->port_names.wwpn, &ndlp->nlp_portname,
7039 sizeof(desc->port_names.wwpn));
7042 desc->length = cpu_to_be32(sizeof(desc->port_names));
7043 return sizeof(struct fc_rdp_port_name_desc);
7047 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
7050 struct lpfc_nodelist *ndlp = rdp_context->ndlp;
7051 struct lpfc_vport *vport = ndlp->vport;
7052 struct lpfc_iocbq *elsiocb;
7053 struct ulp_bde64 *bpl;
7055 union lpfc_wqe128 *wqe;
7057 struct ls_rjt *stat;
7058 struct fc_rdp_res_frame *rdp_res;
7059 uint32_t cmdsize, len;
7064 if (status != SUCCESS)
7067 /* This will change once we know the true size of the RDP payload */
7068 cmdsize = sizeof(struct fc_rdp_res_frame);
7070 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
7071 lpfc_max_els_tries, rdp_context->ndlp,
7072 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
7074 goto free_rdp_context;
7076 ulp_context = get_job_ulpcontext(phba, elsiocb);
7077 if (phba->sli_rev == LPFC_SLI_REV4) {
7078 wqe = &elsiocb->wqe;
7079 /* ox-id of the frame */
7080 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
7081 rdp_context->ox_id);
7082 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
7083 rdp_context->rx_id);
7085 icmd = &elsiocb->iocb;
7086 icmd->ulpContext = rdp_context->rx_id;
7087 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
7090 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7091 "2171 Xmit RDP response tag x%x xri x%x, "
7092 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
7093 elsiocb->iotag, ulp_context,
7094 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
7096 rdp_res = (struct fc_rdp_res_frame *)elsiocb->cmd_dmabuf->virt;
7097 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
7098 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
7099 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
7101 /* Update Alarm and Warning */
7102 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS);
7103 phba->sfp_alarm |= *flag_ptr;
7104 flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS);
7105 phba->sfp_warning |= *flag_ptr;
7107 /* For RDP payload */
7109 len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *)
7110 (len + pcmd), ELS_CMD_RDP);
7112 len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd),
7113 rdp_context->page_a0, rdp_context->page_a2);
7114 len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd),
7116 len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *)
7117 (len + pcmd), &rdp_context->link_stat);
7118 len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *)
7119 (len + pcmd), vport);
7120 len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *)
7121 (len + pcmd), vport, ndlp);
7122 len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd),
7123 &rdp_context->link_stat);
7124 len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd),
7125 &rdp_context->link_stat, vport);
7126 len += lpfc_rdp_res_oed_temp_desc(phba,
7127 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
7128 rdp_context->page_a2);
7129 len += lpfc_rdp_res_oed_voltage_desc(phba,
7130 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
7131 rdp_context->page_a2);
7132 len += lpfc_rdp_res_oed_txbias_desc(phba,
7133 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
7134 rdp_context->page_a2);
7135 len += lpfc_rdp_res_oed_txpower_desc(phba,
7136 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
7137 rdp_context->page_a2);
7138 len += lpfc_rdp_res_oed_rxpower_desc(phba,
7139 (struct fc_rdp_oed_sfp_desc *)(len + pcmd),
7140 rdp_context->page_a2);
7141 len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd),
7142 rdp_context->page_a0, vport);
7144 rdp_res->length = cpu_to_be32(len - 8);
7145 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
7147 /* Now that we know the true size of the payload, update the BPL */
7148 bpl = (struct ulp_bde64 *)elsiocb->bpl_dmabuf->virt;
7149 bpl->tus.f.bdeSize = len;
7150 bpl->tus.f.bdeFlags = 0;
7151 bpl->tus.w = le32_to_cpu(bpl->tus.w);
7153 phba->fc_stat.elsXmitACC++;
7154 elsiocb->ndlp = lpfc_nlp_get(ndlp);
7155 if (!elsiocb->ndlp) {
7156 lpfc_els_free_iocb(phba, elsiocb);
7157 goto free_rdp_context;
7160 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
7161 if (rc == IOCB_ERROR) {
7162 lpfc_els_free_iocb(phba, elsiocb);
7166 goto free_rdp_context;
7169 cmdsize = 2 * sizeof(uint32_t);
7170 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
7171 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
7173 goto free_rdp_context;
7175 if (phba->sli_rev == LPFC_SLI_REV4) {
7176 wqe = &elsiocb->wqe;
7177 /* ox-id of the frame */
7178 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
7179 rdp_context->ox_id);
7180 bf_set(wqe_ctxt_tag,
7181 &wqe->xmit_els_rsp.wqe_com,
7182 rdp_context->rx_id);
7184 icmd = &elsiocb->iocb;
7185 icmd->ulpContext = rdp_context->rx_id;
7186 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
7189 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
7191 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
7192 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
7193 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7195 phba->fc_stat.elsXmitLSRJT++;
7196 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
7197 elsiocb->ndlp = lpfc_nlp_get(ndlp);
7198 if (!elsiocb->ndlp) {
7199 lpfc_els_free_iocb(phba, elsiocb);
7200 goto free_rdp_context;
7203 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
7204 if (rc == IOCB_ERROR) {
7205 lpfc_els_free_iocb(phba, elsiocb);
7210 /* This reference put is for the original unsolicited RDP. If the
7211 * prep failed, there is no reference to remove.
7218 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
7220 LPFC_MBOXQ_t *mbox = NULL;
7223 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7225 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
7226 "7105 failed to allocate mailbox memory");
7230 if (lpfc_sli4_dump_page_a0(phba, mbox))
7232 mbox->vport = rdp_context->ndlp->vport;
7233 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
7234 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context;
7235 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
7236 if (rc == MBX_NOT_FINISHED) {
7237 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
7244 mempool_free(mbox, phba->mbox_mem_pool);
7248 int lpfc_get_sfp_info_wait(struct lpfc_hba *phba,
7249 struct lpfc_rdp_context *rdp_context)
7251 LPFC_MBOXQ_t *mbox = NULL;
7253 struct lpfc_dmabuf *mp;
7254 struct lpfc_dmabuf *mpsave;
7258 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7260 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
7261 "7205 failed to allocate mailbox memory");
7265 if (lpfc_sli4_dump_page_a0(phba, mbox))
7270 if (phba->sli_rev < LPFC_SLI_REV4) {
7272 mb->un.varDmp.cv = 1;
7273 mb->un.varDmp.co = 1;
7274 mb->un.varWords[2] = 0;
7275 mb->un.varWords[3] = DMP_SFF_PAGE_A0_SIZE / 4;
7276 mb->un.varWords[4] = 0;
7277 mb->un.varWords[5] = 0;
7278 mb->un.varWords[6] = 0;
7279 mb->un.varWords[7] = 0;
7280 mb->un.varWords[8] = 0;
7281 mb->un.varWords[9] = 0;
7282 mb->un.varWords[10] = 0;
7283 mbox->in_ext_byte_len = DMP_SFF_PAGE_A0_SIZE;
7284 mbox->out_ext_byte_len = DMP_SFF_PAGE_A0_SIZE;
7285 mbox->mbox_offset_word = 5;
7286 mbox->ctx_buf = virt;
7288 bf_set(lpfc_mbx_memory_dump_type3_length,
7289 &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A0_SIZE);
7290 mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys);
7291 mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys);
7293 mbox->vport = phba->pport;
7294 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context;
7296 rc = lpfc_sli_issue_mbox_wait(phba, mbox, 30);
7297 if (rc == MBX_NOT_FINISHED) {
7302 if (phba->sli_rev == LPFC_SLI_REV4)
7303 mp = (struct lpfc_dmabuf *)(mbox->ctx_buf);
7307 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) {
7312 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a0,
7313 DMP_SFF_PAGE_A0_SIZE);
7315 memset(mbox, 0, sizeof(*mbox));
7316 memset(mp->virt, 0, DMP_SFF_PAGE_A2_SIZE);
7317 INIT_LIST_HEAD(&mp->list);
7319 /* save address for completion */
7321 mbox->vport = phba->pport;
7323 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY);
7324 bf_set(lpfc_mbx_memory_dump_type3_type,
7325 &mbox->u.mqe.un.mem_dump_type3, DMP_LMSD);
7326 bf_set(lpfc_mbx_memory_dump_type3_link,
7327 &mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port);
7328 bf_set(lpfc_mbx_memory_dump_type3_page_no,
7329 &mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A2);
7330 if (phba->sli_rev < LPFC_SLI_REV4) {
7332 mb->un.varDmp.cv = 1;
7333 mb->un.varDmp.co = 1;
7334 mb->un.varWords[2] = 0;
7335 mb->un.varWords[3] = DMP_SFF_PAGE_A2_SIZE / 4;
7336 mb->un.varWords[4] = 0;
7337 mb->un.varWords[5] = 0;
7338 mb->un.varWords[6] = 0;
7339 mb->un.varWords[7] = 0;
7340 mb->un.varWords[8] = 0;
7341 mb->un.varWords[9] = 0;
7342 mb->un.varWords[10] = 0;
7343 mbox->in_ext_byte_len = DMP_SFF_PAGE_A2_SIZE;
7344 mbox->out_ext_byte_len = DMP_SFF_PAGE_A2_SIZE;
7345 mbox->mbox_offset_word = 5;
7346 mbox->ctx_buf = virt;
7348 bf_set(lpfc_mbx_memory_dump_type3_length,
7349 &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A2_SIZE);
7350 mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys);
7351 mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys);
7354 mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context;
7355 rc = lpfc_sli_issue_mbox_wait(phba, mbox, 30);
7356 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) {
7362 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2,
7363 DMP_SFF_PAGE_A2_SIZE);
7366 mbox->ctx_buf = mpsave;
7367 lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
7372 mempool_free(mbox, phba->mbox_mem_pool);
7377 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
7378 * @vport: pointer to a host virtual N_Port data structure.
7379 * @cmdiocb: pointer to lpfc command iocb data structure.
7380 * @ndlp: pointer to a node-list data structure.
7382 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
7383 * IOCB. First, the payload of the unsolicited RDP is checked.
7384 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
7385 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
7386 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
7387 * gather all data and send RDP response.
7390 * 0 - Sent the acc response
7391 * 1 - Sent the reject response.
7394 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7395 struct lpfc_nodelist *ndlp)
7397 struct lpfc_hba *phba = vport->phba;
7398 struct lpfc_dmabuf *pcmd;
7399 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
7400 struct fc_rdp_req_frame *rdp_req;
7401 struct lpfc_rdp_context *rdp_context;
7402 union lpfc_wqe128 *cmd = NULL;
7405 if (phba->sli_rev < LPFC_SLI_REV4 ||
7406 bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
7407 LPFC_SLI_INTF_IF_TYPE_2) {
7408 rjt_err = LSRJT_UNABLE_TPC;
7409 rjt_expl = LSEXP_REQ_UNSUPPORTED;
7413 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
7414 rjt_err = LSRJT_UNABLE_TPC;
7415 rjt_expl = LSEXP_REQ_UNSUPPORTED;
7419 pcmd = cmdiocb->cmd_dmabuf;
7420 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
7422 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7423 "2422 ELS RDP Request "
7424 "dec len %d tag x%x port_id %d len %d\n",
7425 be32_to_cpu(rdp_req->rdp_des_length),
7426 be32_to_cpu(rdp_req->nport_id_desc.tag),
7427 be32_to_cpu(rdp_req->nport_id_desc.nport_id),
7428 be32_to_cpu(rdp_req->nport_id_desc.length));
7430 if (sizeof(struct fc_rdp_nport_desc) !=
7431 be32_to_cpu(rdp_req->rdp_des_length))
7433 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
7435 if (RDP_NPORT_ID_SIZE !=
7436 be32_to_cpu(rdp_req->nport_id_desc.length))
7438 rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
7440 rjt_err = LSRJT_UNABLE_TPC;
7444 cmd = &cmdiocb->wqe;
7445 rdp_context->ndlp = lpfc_nlp_get(ndlp);
7446 if (!rdp_context->ndlp) {
7448 rjt_err = LSRJT_UNABLE_TPC;
7451 rdp_context->ox_id = bf_get(wqe_rcvoxid,
7452 &cmd->xmit_els_rsp.wqe_com);
7453 rdp_context->rx_id = bf_get(wqe_ctxt_tag,
7454 &cmd->xmit_els_rsp.wqe_com);
7455 rdp_context->cmpl = lpfc_els_rdp_cmpl;
7456 if (lpfc_get_rdp_info(phba, rdp_context)) {
7457 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
7458 "2423 Unable to send mailbox");
7460 rjt_err = LSRJT_UNABLE_TPC;
7468 rjt_err = LSRJT_LOGICAL_ERR;
7471 memset(&stat, 0, sizeof(stat));
7472 stat.un.b.lsRjtRsnCode = rjt_err;
7473 stat.un.b.lsRjtRsnCodeExp = rjt_expl;
7474 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
7480 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
7484 union lpfc_wqe128 *wqe;
7486 struct lpfc_iocbq *elsiocb;
7487 struct lpfc_nodelist *ndlp;
7488 struct ls_rjt *stat;
7489 union lpfc_sli4_cfg_shdr *shdr;
7490 struct lpfc_lcb_context *lcb_context;
7491 struct fc_lcb_res_frame *lcb_res;
7492 uint32_t cmdsize, shdr_status, shdr_add_status;
7496 lcb_context = (struct lpfc_lcb_context *)pmb->ctx_ndlp;
7497 ndlp = lcb_context->ndlp;
7498 pmb->ctx_ndlp = NULL;
7499 pmb->ctx_buf = NULL;
7501 shdr = (union lpfc_sli4_cfg_shdr *)
7502 &pmb->u.mqe.un.beacon_config.header.cfg_shdr;
7503 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7504 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7506 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
7507 "0194 SET_BEACON_CONFIG mailbox "
7508 "completed with status x%x add_status x%x,"
7509 " mbx status x%x\n",
7510 shdr_status, shdr_add_status, mb->mbxStatus);
7512 if ((mb->mbxStatus != MBX_SUCCESS) || shdr_status ||
7513 (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) ||
7514 (shdr_add_status == ADD_STATUS_INVALID_REQUEST)) {
7515 mempool_free(pmb, phba->mbox_mem_pool);
7519 mempool_free(pmb, phba->mbox_mem_pool);
7520 cmdsize = sizeof(struct fc_lcb_res_frame);
7521 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
7522 lpfc_max_els_tries, ndlp,
7523 ndlp->nlp_DID, ELS_CMD_ACC);
7525 /* Decrement the ndlp reference count from previous mbox command */
7529 goto free_lcb_context;
7531 lcb_res = (struct fc_lcb_res_frame *)elsiocb->cmd_dmabuf->virt;
7533 memset(lcb_res, 0, sizeof(struct fc_lcb_res_frame));
7535 if (phba->sli_rev == LPFC_SLI_REV4) {
7536 wqe = &elsiocb->wqe;
7537 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id);
7538 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
7539 lcb_context->ox_id);
7541 icmd = &elsiocb->iocb;
7542 icmd->ulpContext = lcb_context->rx_id;
7543 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
7546 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
7547 *((uint32_t *)(pcmd)) = ELS_CMD_ACC;
7548 lcb_res->lcb_sub_command = lcb_context->sub_command;
7549 lcb_res->lcb_type = lcb_context->type;
7550 lcb_res->capability = lcb_context->capability;
7551 lcb_res->lcb_frequency = lcb_context->frequency;
7552 lcb_res->lcb_duration = lcb_context->duration;
7553 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
7554 phba->fc_stat.elsXmitACC++;
7556 elsiocb->ndlp = lpfc_nlp_get(ndlp);
7557 if (!elsiocb->ndlp) {
7558 lpfc_els_free_iocb(phba, elsiocb);
7562 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
7563 if (rc == IOCB_ERROR) {
7564 lpfc_els_free_iocb(phba, elsiocb);
7572 cmdsize = sizeof(struct fc_lcb_res_frame);
7573 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
7574 lpfc_max_els_tries, ndlp,
7575 ndlp->nlp_DID, ELS_CMD_LS_RJT);
7578 goto free_lcb_context;
7580 if (phba->sli_rev == LPFC_SLI_REV4) {
7581 wqe = &elsiocb->wqe;
7582 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id);
7583 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
7584 lcb_context->ox_id);
7586 icmd = &elsiocb->iocb;
7587 icmd->ulpContext = lcb_context->rx_id;
7588 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
7591 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
7593 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
7594 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
7595 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
7597 if (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)
7598 stat->un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
7600 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
7601 phba->fc_stat.elsXmitLSRJT++;
7602 elsiocb->ndlp = lpfc_nlp_get(ndlp);
7603 if (!elsiocb->ndlp) {
7604 lpfc_els_free_iocb(phba, elsiocb);
7605 goto free_lcb_context;
7608 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
7609 if (rc == IOCB_ERROR) {
7610 lpfc_els_free_iocb(phba, elsiocb);
7618 lpfc_sli4_set_beacon(struct lpfc_vport *vport,
7619 struct lpfc_lcb_context *lcb_context,
7620 uint32_t beacon_state)
7622 struct lpfc_hba *phba = vport->phba;
7623 union lpfc_sli4_cfg_shdr *cfg_shdr;
7624 LPFC_MBOXQ_t *mbox = NULL;
7628 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7632 cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
7633 len = sizeof(struct lpfc_mbx_set_beacon_config) -
7634 sizeof(struct lpfc_sli4_cfg_mhdr);
7635 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
7636 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
7637 LPFC_SLI4_MBX_EMBED);
7638 mbox->ctx_ndlp = (void *)lcb_context;
7639 mbox->vport = phba->pport;
7640 mbox->mbox_cmpl = lpfc_els_lcb_rsp;
7641 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
7642 phba->sli4_hba.physical_port);
7643 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
7645 mbox->u.mqe.un.beacon_config.word5 = 0; /* Reserved */
7648 * Check bv1s bit before issuing the mailbox
7649 * if bv1s == 1, LCB V1 supported
7650 * else, LCB V0 supported
7653 if (phba->sli4_hba.pc_sli4_params.bv1s) {
7654 /* COMMON_SET_BEACON_CONFIG_V1 */
7655 cfg_shdr->request.word9 = BEACON_VERSION_V1;
7656 lcb_context->capability |= LCB_CAPABILITY_DURATION;
7657 bf_set(lpfc_mbx_set_beacon_port_type,
7658 &mbox->u.mqe.un.beacon_config, 0);
7659 bf_set(lpfc_mbx_set_beacon_duration_v1,
7660 &mbox->u.mqe.un.beacon_config,
7661 be16_to_cpu(lcb_context->duration));
7663 /* COMMON_SET_BEACON_CONFIG_V0 */
7664 if (be16_to_cpu(lcb_context->duration) != 0) {
7665 mempool_free(mbox, phba->mbox_mem_pool);
7668 cfg_shdr->request.word9 = BEACON_VERSION_V0;
7669 lcb_context->capability &= ~(LCB_CAPABILITY_DURATION);
7670 bf_set(lpfc_mbx_set_beacon_state,
7671 &mbox->u.mqe.un.beacon_config, beacon_state);
7672 bf_set(lpfc_mbx_set_beacon_port_type,
7673 &mbox->u.mqe.un.beacon_config, 1);
7674 bf_set(lpfc_mbx_set_beacon_duration,
7675 &mbox->u.mqe.un.beacon_config,
7676 be16_to_cpu(lcb_context->duration));
7679 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
7680 if (rc == MBX_NOT_FINISHED) {
7681 mempool_free(mbox, phba->mbox_mem_pool);
7690 * lpfc_els_rcv_lcb - Process an unsolicited LCB
7691 * @vport: pointer to a host virtual N_Port data structure.
7692 * @cmdiocb: pointer to lpfc command iocb data structure.
7693 * @ndlp: pointer to a node-list data structure.
7695 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
7696 * First, the payload of the unsolicited LCB is checked.
7697 * Then based on Subcommand beacon will either turn on or off.
7700 * 0 - Sent the acc response
7701 * 1 - Sent the reject response.
7704 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
7705 struct lpfc_nodelist *ndlp)
7707 struct lpfc_hba *phba = vport->phba;
7708 struct lpfc_dmabuf *pcmd;
7710 struct fc_lcb_request_frame *beacon;
7711 struct lpfc_lcb_context *lcb_context;
7712 u8 state, rjt_err = 0;
7715 pcmd = cmdiocb->cmd_dmabuf;
7716 lp = (uint8_t *)pcmd->virt;
7717 beacon = (struct fc_lcb_request_frame *)pcmd->virt;
7719 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7720 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
7721 "type x%x frequency %x duration x%x\n",
7722 lp[0], lp[1], lp[2],
7723 beacon->lcb_command,
7724 beacon->lcb_sub_command,
7726 beacon->lcb_frequency,
7727 be16_to_cpu(beacon->lcb_duration));
7729 if (beacon->lcb_sub_command != LPFC_LCB_ON &&
7730 beacon->lcb_sub_command != LPFC_LCB_OFF) {
7731 rjt_err = LSRJT_CMD_UNSUPPORTED;
7735 if (phba->sli_rev < LPFC_SLI_REV4 ||
7736 phba->hba_flag & HBA_FCOE_MODE ||
7737 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
7738 LPFC_SLI_INTF_IF_TYPE_2)) {
7739 rjt_err = LSRJT_CMD_UNSUPPORTED;
7743 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL);
7745 rjt_err = LSRJT_UNABLE_TPC;
7749 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
7750 lcb_context->sub_command = beacon->lcb_sub_command;
7751 lcb_context->capability = 0;
7752 lcb_context->type = beacon->lcb_type;
7753 lcb_context->frequency = beacon->lcb_frequency;
7754 lcb_context->duration = beacon->lcb_duration;
7755 lcb_context->ox_id = get_job_rcvoxid(phba, cmdiocb);
7756 lcb_context->rx_id = get_job_ulpcontext(phba, cmdiocb);
7757 lcb_context->ndlp = lpfc_nlp_get(ndlp);
7758 if (!lcb_context->ndlp) {
7759 rjt_err = LSRJT_UNABLE_TPC;
7763 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
7764 lpfc_printf_vlog(ndlp->vport, KERN_ERR, LOG_TRACE_EVENT,
7765 "0193 failed to send mail box");
7767 rjt_err = LSRJT_UNABLE_TPC;
7775 memset(&stat, 0, sizeof(stat));
7776 stat.un.b.lsRjtRsnCode = rjt_err;
7777 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
7783 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
7784 * @vport: pointer to a host virtual N_Port data structure.
7786 * This routine cleans up any Registration State Change Notification
7787 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
7788 * @vport together with the host_lock is used to prevent multiple thread
7789 * trying to access the RSCN array on a same @vport at the same time.
7792 lpfc_els_flush_rscn(struct lpfc_vport *vport)
7794 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7795 struct lpfc_hba *phba = vport->phba;
7798 spin_lock_irq(shost->host_lock);
7799 if (vport->fc_rscn_flush) {
7800 /* Another thread is walking fc_rscn_id_list on this vport */
7801 spin_unlock_irq(shost->host_lock);
7804 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
7805 vport->fc_rscn_flush = 1;
7806 spin_unlock_irq(shost->host_lock);
7808 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
7809 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
7810 vport->fc_rscn_id_list[i] = NULL;
7812 spin_lock_irq(shost->host_lock);
7813 vport->fc_rscn_id_cnt = 0;
7814 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
7815 spin_unlock_irq(shost->host_lock);
7816 lpfc_can_disctmo(vport);
7817 /* Indicate we are done walking this fc_rscn_id_list */
7818 vport->fc_rscn_flush = 0;
7822 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
7823 * @vport: pointer to a host virtual N_Port data structure.
7824 * @did: remote destination port identifier.
7826 * This routine checks whether there is any pending Registration State
7827 * Configuration Notification (RSCN) to a @did on @vport.
7830 * None zero - The @did matched with a pending rscn
7831 * 0 - not able to match @did with a pending rscn
7834 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
7839 uint32_t payload_len, i;
7840 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7842 ns_did.un.word = did;
7844 /* Never match fabric nodes for RSCNs */
7845 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7848 /* If we are doing a FULL RSCN rediscovery, match everything */
7849 if (vport->fc_flag & FC_RSCN_DISCOVERY)
7852 spin_lock_irq(shost->host_lock);
7853 if (vport->fc_rscn_flush) {
7854 /* Another thread is walking fc_rscn_id_list on this vport */
7855 spin_unlock_irq(shost->host_lock);
7858 /* Indicate we are walking fc_rscn_id_list on this vport */
7859 vport->fc_rscn_flush = 1;
7860 spin_unlock_irq(shost->host_lock);
7861 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
7862 lp = vport->fc_rscn_id_list[i]->virt;
7863 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
7864 payload_len -= sizeof(uint32_t); /* take off word 0 */
7865 while (payload_len) {
7866 rscn_did.un.word = be32_to_cpu(*lp++);
7867 payload_len -= sizeof(uint32_t);
7868 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
7869 case RSCN_ADDRESS_FORMAT_PORT:
7870 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
7871 && (ns_did.un.b.area == rscn_did.un.b.area)
7872 && (ns_did.un.b.id == rscn_did.un.b.id))
7873 goto return_did_out;
7875 case RSCN_ADDRESS_FORMAT_AREA:
7876 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
7877 && (ns_did.un.b.area == rscn_did.un.b.area))
7878 goto return_did_out;
7880 case RSCN_ADDRESS_FORMAT_DOMAIN:
7881 if (ns_did.un.b.domain == rscn_did.un.b.domain)
7882 goto return_did_out;
7884 case RSCN_ADDRESS_FORMAT_FABRIC:
7885 goto return_did_out;
7889 /* Indicate we are done with walking fc_rscn_id_list on this vport */
7890 vport->fc_rscn_flush = 0;
7893 /* Indicate we are done with walking fc_rscn_id_list on this vport */
7894 vport->fc_rscn_flush = 0;
7899 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
7900 * @vport: pointer to a host virtual N_Port data structure.
7902 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
7903 * state machine for a @vport's nodes that are with pending RSCN (Registration
7904 * State Change Notification).
7907 * 0 - Successful (currently alway return 0)
7910 lpfc_rscn_recovery_check(struct lpfc_vport *vport)
7912 struct lpfc_nodelist *ndlp = NULL, *n;
7914 /* Move all affected nodes by pending RSCNs to NPR state. */
7915 list_for_each_entry_safe(ndlp, n, &vport->fc_nodes, nlp_listp) {
7916 if ((ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
7917 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
7920 /* NVME Target mode does not do RSCN Recovery. */
7921 if (vport->phba->nvmet_support)
7924 /* If we are in the process of doing discovery on this
7925 * NPort, let it continue on its own.
7927 switch (ndlp->nlp_state) {
7928 case NLP_STE_PLOGI_ISSUE:
7929 case NLP_STE_ADISC_ISSUE:
7930 case NLP_STE_REG_LOGIN_ISSUE:
7931 case NLP_STE_PRLI_ISSUE:
7932 case NLP_STE_LOGO_ISSUE:
7936 lpfc_disc_state_machine(vport, ndlp, NULL,
7937 NLP_EVT_DEVICE_RECOVERY);
7938 lpfc_cancel_retry_delay_tmo(vport, ndlp);
7944 * lpfc_send_rscn_event - Send an RSCN event to management application
7945 * @vport: pointer to a host virtual N_Port data structure.
7946 * @cmdiocb: pointer to lpfc command iocb data structure.
7948 * lpfc_send_rscn_event sends an RSCN netlink event to management
7952 lpfc_send_rscn_event(struct lpfc_vport *vport,
7953 struct lpfc_iocbq *cmdiocb)
7955 struct lpfc_dmabuf *pcmd;
7956 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7957 uint32_t *payload_ptr;
7958 uint32_t payload_len;
7959 struct lpfc_rscn_event_header *rscn_event_data;
7961 pcmd = cmdiocb->cmd_dmabuf;
7962 payload_ptr = (uint32_t *) pcmd->virt;
7963 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
7965 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
7966 payload_len, GFP_KERNEL);
7967 if (!rscn_event_data) {
7968 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
7969 "0147 Failed to allocate memory for RSCN event\n");
7972 rscn_event_data->event_type = FC_REG_RSCN_EVENT;
7973 rscn_event_data->payload_length = payload_len;
7974 memcpy(rscn_event_data->rscn_payload, payload_ptr,
7977 fc_host_post_vendor_event(shost,
7978 fc_get_event_number(),
7979 sizeof(struct lpfc_rscn_event_header) + payload_len,
7980 (char *)rscn_event_data,
7983 kfree(rscn_event_data);
7987 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
7988 * @vport: pointer to a host virtual N_Port data structure.
7989 * @cmdiocb: pointer to lpfc command iocb data structure.
7990 * @ndlp: pointer to a node-list data structure.
7992 * This routine processes an unsolicited RSCN (Registration State Change
7993 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
7994 * to invoke fc_host_post_event() routine to the FC transport layer. If the
7995 * discover state machine is about to begin discovery, it just accepts the
7996 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
7997 * contains N_Port IDs for other vports on this HBA, it just accepts the
7998 * RSCN and ignore processing it. If the state machine is in the recovery
7999 * state, the fc_rscn_id_list of this @vport is walked and the
8000 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
8001 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
8002 * routine is invoked to handle the RSCN event.
8005 * 0 - Just sent the acc response
8006 * 1 - Sent the acc response and waited for name server completion
8009 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
8010 struct lpfc_nodelist *ndlp)
8012 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8013 struct lpfc_hba *phba = vport->phba;
8014 struct lpfc_dmabuf *pcmd;
8015 uint32_t *lp, *datap;
8016 uint32_t payload_len, length, nportid, *cmd;
8018 int rscn_id = 0, hba_id = 0;
8021 pcmd = cmdiocb->cmd_dmabuf;
8022 lp = (uint32_t *) pcmd->virt;
8024 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
8025 payload_len -= sizeof(uint32_t); /* take off word 0 */
8027 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
8028 "0214 RSCN received Data: x%x x%x x%x x%x\n",
8029 vport->fc_flag, payload_len, *lp,
8030 vport->fc_rscn_id_cnt);
8032 /* Send an RSCN event to the management application */
8033 lpfc_send_rscn_event(vport, cmdiocb);
8035 for (i = 0; i < payload_len/sizeof(uint32_t); i++)
8036 fc_host_post_event(shost, fc_get_event_number(),
8037 FCH_EVT_RSCN, lp[i]);
8039 /* Check if RSCN is coming from a direct-connected remote NPort */
8040 if (vport->fc_flag & FC_PT2PT) {
8041 /* If so, just ACC it, no other action needed for now */
8042 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8043 "2024 pt2pt RSCN %08x Data: x%x x%x\n",
8044 *lp, vport->fc_flag, payload_len);
8045 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
8047 /* Check to see if we need to NVME rescan this target
8050 if (ndlp->nlp_fc4_type & NLP_FC4_NVME &&
8051 ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY))
8052 lpfc_nvme_rescan_port(vport, ndlp);
8056 /* If we are about to begin discovery, just ACC the RSCN.
8057 * Discovery processing will satisfy it.
8059 if (vport->port_state <= LPFC_NS_QRY) {
8060 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8061 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
8062 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
8064 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
8068 /* If this RSCN just contains NPortIDs for other vports on this HBA,
8069 * just ACC and ignore it.
8071 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
8072 !(vport->cfg_peer_port_login)) {
8077 nportid = ((be32_to_cpu(nportid)) & Mask_DID);
8078 i -= sizeof(uint32_t);
8080 if (lpfc_find_vport_by_did(phba, nportid))
8083 if (rscn_id == hba_id) {
8084 /* ALL NPortIDs in RSCN are on HBA */
8085 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
8087 "Data: x%x x%x x%x x%x\n",
8088 vport->fc_flag, payload_len,
8089 *lp, vport->fc_rscn_id_cnt);
8090 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8091 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
8092 ndlp->nlp_DID, vport->port_state,
8095 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
8097 /* Restart disctmo if its already running */
8098 if (vport->fc_flag & FC_DISC_TMO) {
8099 tmo = ((phba->fc_ratov * 3) + 3);
8100 mod_timer(&vport->fc_disctmo,
8102 msecs_to_jiffies(1000 * tmo));
8108 spin_lock_irq(shost->host_lock);
8109 if (vport->fc_rscn_flush) {
8110 /* Another thread is walking fc_rscn_id_list on this vport */
8111 vport->fc_flag |= FC_RSCN_DISCOVERY;
8112 spin_unlock_irq(shost->host_lock);
8114 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
8117 /* Indicate we are walking fc_rscn_id_list on this vport */
8118 vport->fc_rscn_flush = 1;
8119 spin_unlock_irq(shost->host_lock);
8120 /* Get the array count after successfully have the token */
8121 rscn_cnt = vport->fc_rscn_id_cnt;
8122 /* If we are already processing an RSCN, save the received
8123 * RSCN payload buffer, cmdiocb->cmd_dmabuf to process later.
8125 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
8126 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8127 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
8128 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
8130 spin_lock_irq(shost->host_lock);
8131 vport->fc_flag |= FC_RSCN_DEFERRED;
8133 /* Restart disctmo if its already running */
8134 if (vport->fc_flag & FC_DISC_TMO) {
8135 tmo = ((phba->fc_ratov * 3) + 3);
8136 mod_timer(&vport->fc_disctmo,
8137 jiffies + msecs_to_jiffies(1000 * tmo));
8139 if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
8140 !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
8141 vport->fc_flag |= FC_RSCN_MODE;
8142 spin_unlock_irq(shost->host_lock);
8144 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
8145 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
8148 (payload_len + length <= LPFC_BPL_SIZE)) {
8149 *cmd &= ELS_CMD_MASK;
8150 *cmd |= cpu_to_be32(payload_len + length);
8151 memcpy(((uint8_t *)cmd) + length, lp,
8154 vport->fc_rscn_id_list[rscn_cnt] = pcmd;
8155 vport->fc_rscn_id_cnt++;
8156 /* If we zero, cmdiocb->cmd_dmabuf, the calling
8157 * routine will not try to free it.
8159 cmdiocb->cmd_dmabuf = NULL;
8162 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
8163 "0235 Deferred RSCN "
8164 "Data: x%x x%x x%x\n",
8165 vport->fc_rscn_id_cnt, vport->fc_flag,
8168 vport->fc_flag |= FC_RSCN_DISCOVERY;
8169 spin_unlock_irq(shost->host_lock);
8170 /* ReDiscovery RSCN */
8171 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
8172 "0234 ReDiscovery RSCN "
8173 "Data: x%x x%x x%x\n",
8174 vport->fc_rscn_id_cnt, vport->fc_flag,
8177 /* Indicate we are done walking fc_rscn_id_list on this vport */
8178 vport->fc_rscn_flush = 0;
8180 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
8181 /* send RECOVERY event for ALL nodes that match RSCN payload */
8182 lpfc_rscn_recovery_check(vport);
8185 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
8186 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
8187 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
8189 spin_lock_irq(shost->host_lock);
8190 vport->fc_flag |= FC_RSCN_MODE;
8191 spin_unlock_irq(shost->host_lock);
8192 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
8193 /* Indicate we are done walking fc_rscn_id_list on this vport */
8194 vport->fc_rscn_flush = 0;
8196 * If we zero, cmdiocb->cmd_dmabuf, the calling routine will
8197 * not try to free it.
8199 cmdiocb->cmd_dmabuf = NULL;
8200 lpfc_set_disctmo(vport);
8202 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
8203 /* send RECOVERY event for ALL nodes that match RSCN payload */
8204 lpfc_rscn_recovery_check(vport);
8205 return lpfc_els_handle_rscn(vport);
8209 * lpfc_els_handle_rscn - Handle rscn for a vport
8210 * @vport: pointer to a host virtual N_Port data structure.
8212 * This routine handles the Registration State Configuration Notification
8213 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
8214 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
8215 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
8216 * NameServer shall be issued. If CT command to the NameServer fails to be
8217 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
8218 * RSCN activities with the @vport.
8221 * 0 - Cleaned up rscn on the @vport
8222 * 1 - Wait for plogi to name server before proceed
8225 lpfc_els_handle_rscn(struct lpfc_vport *vport)
8227 struct lpfc_nodelist *ndlp;
8228 struct lpfc_hba *phba = vport->phba;
8230 /* Ignore RSCN if the port is being torn down. */
8231 if (vport->load_flag & FC_UNLOADING) {
8232 lpfc_els_flush_rscn(vport);
8236 /* Start timer for RSCN processing */
8237 lpfc_set_disctmo(vport);
8239 /* RSCN processed */
8240 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
8241 "0215 RSCN processed Data: x%x x%x x%x x%x x%x x%x\n",
8242 vport->fc_flag, 0, vport->fc_rscn_id_cnt,
8243 vport->port_state, vport->num_disc_nodes,
8246 /* To process RSCN, first compare RSCN data with NameServer */
8247 vport->fc_ns_retry = 0;
8248 vport->num_disc_nodes = 0;
8250 ndlp = lpfc_findnode_did(vport, NameServer_DID);
8251 if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
8252 /* Good ndlp, issue CT Request to NameServer. Need to
8253 * know how many gidfts were issued. If none, then just
8254 * flush the RSCN. Otherwise, the outstanding requests
8257 if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT) {
8258 if (lpfc_issue_gidft(vport) > 0)
8260 } else if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_PT) {
8261 if (lpfc_issue_gidpt(vport) > 0)
8267 /* Nameserver login in question. Revalidate. */
8269 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
8270 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
8272 ndlp = lpfc_nlp_init(vport, NameServer_DID);
8274 lpfc_els_flush_rscn(vport);
8277 ndlp->nlp_prev_state = ndlp->nlp_state;
8278 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
8280 ndlp->nlp_type |= NLP_FABRIC;
8281 lpfc_issue_els_plogi(vport, NameServer_DID, 0);
8282 /* Wait for NameServer login cmpl before we can
8288 lpfc_els_flush_rscn(vport);
8293 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
8294 * @vport: pointer to a host virtual N_Port data structure.
8295 * @cmdiocb: pointer to lpfc command iocb data structure.
8296 * @ndlp: pointer to a node-list data structure.
8298 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
8299 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
8300 * point topology. As an unsolicited FLOGI should not be received in a loop
8301 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
8302 * lpfc_check_sparm() routine is invoked to check the parameters in the
8303 * unsolicited FLOGI. If parameters validation failed, the routine
8304 * lpfc_els_rsp_reject() shall be called with reject reason code set to
8305 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
8306 * FLOGI shall be compared with the Port WWN of the @vport to determine who
8307 * will initiate PLOGI. The higher lexicographical value party shall has
8308 * higher priority (as the winning port) and will initiate PLOGI and
8309 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
8310 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
8311 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
8314 * 0 - Successfully processed the unsolicited flogi
8315 * 1 - Failed to process the unsolicited flogi
8318 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
8319 struct lpfc_nodelist *ndlp)
8321 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8322 struct lpfc_hba *phba = vport->phba;
8323 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf;
8324 uint32_t *lp = (uint32_t *) pcmd->virt;
8325 union lpfc_wqe128 *wqe = &cmdiocb->wqe;
8326 struct serv_parm *sp;
8330 uint32_t fc_flag = 0;
8331 uint32_t port_state = 0;
8333 /* Clear external loopback plug detected flag */
8334 phba->link_flag &= ~LS_EXTERNAL_LOOPBACK;
8337 sp = (struct serv_parm *) lp;
8339 /* FLOGI received */
8341 lpfc_set_disctmo(vport);
8343 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8344 /* We should never receive a FLOGI in loop mode, ignore it */
8345 did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest);
8347 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
8349 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
8350 "0113 An FLOGI ELS command x%x was "
8351 "received from DID x%x in Loop Mode\n",
8356 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
8359 * If our portname is greater than the remote portname,
8360 * then we initiate Nport login.
8363 rc = memcmp(&vport->fc_portname, &sp->portName,
8364 sizeof(struct lpfc_name));
8367 if (phba->sli_rev < LPFC_SLI_REV4) {
8368 mbox = mempool_alloc(phba->mbox_mem_pool,
8372 lpfc_linkdown(phba);
8373 lpfc_init_link(phba, mbox,
8375 phba->cfg_link_speed);
8376 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
8377 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
8378 mbox->vport = vport;
8379 rc = lpfc_sli_issue_mbox(phba, mbox,
8381 lpfc_set_loopback_flag(phba);
8382 if (rc == MBX_NOT_FINISHED)
8383 mempool_free(mbox, phba->mbox_mem_pool);
8387 /* External loopback plug insertion detected */
8388 phba->link_flag |= LS_EXTERNAL_LOOPBACK;
8390 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_LIBDFC,
8391 "1119 External Loopback plug detected\n");
8393 /* abort the flogi coming back to ourselves
8394 * due to external loopback on the port.
8396 lpfc_els_abort_flogi(phba);
8399 } else if (rc > 0) { /* greater than */
8400 spin_lock_irq(shost->host_lock);
8401 vport->fc_flag |= FC_PT2PT_PLOGI;
8402 spin_unlock_irq(shost->host_lock);
8404 /* If we have the high WWPN we can assign our own
8405 * myDID; otherwise, we have to WAIT for a PLOGI
8406 * from the remote NPort to find out what it
8409 vport->fc_myDID = PT2PT_LocalID;
8411 vport->fc_myDID = PT2PT_RemoteID;
8415 * The vport state should go to LPFC_FLOGI only
8416 * AFTER we issue a FLOGI, not receive one.
8418 spin_lock_irq(shost->host_lock);
8419 fc_flag = vport->fc_flag;
8420 port_state = vport->port_state;
8421 vport->fc_flag |= FC_PT2PT;
8422 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
8424 /* Acking an unsol FLOGI. Count 1 for link bounce
8427 vport->rcv_flogi_cnt++;
8428 spin_unlock_irq(shost->host_lock);
8429 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8430 "3311 Rcv Flogi PS x%x new PS x%x "
8431 "fc_flag x%x new fc_flag x%x\n",
8432 port_state, vport->port_state,
8433 fc_flag, vport->fc_flag);
8436 * We temporarily set fc_myDID to make it look like we are
8437 * a Fabric. This is done just so we end up with the right
8438 * did / sid on the FLOGI ACC rsp.
8440 did = vport->fc_myDID;
8441 vport->fc_myDID = Fabric_DID;
8443 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
8445 /* Defer ACC response until AFTER we issue a FLOGI */
8446 if (!(phba->hba_flag & HBA_FLOGI_ISSUED)) {
8447 phba->defer_flogi_acc_rx_id = bf_get(wqe_ctxt_tag,
8448 &wqe->xmit_els_rsp.wqe_com);
8449 phba->defer_flogi_acc_ox_id = bf_get(wqe_rcvoxid,
8450 &wqe->xmit_els_rsp.wqe_com);
8452 vport->fc_myDID = did;
8454 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8455 "3344 Deferring FLOGI ACC: rx_id: x%x,"
8456 " ox_id: x%x, hba_flag x%x\n",
8457 phba->defer_flogi_acc_rx_id,
8458 phba->defer_flogi_acc_ox_id, phba->hba_flag);
8460 phba->defer_flogi_acc_flag = true;
8466 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
8468 /* Now lets put fc_myDID back to what its supposed to be */
8469 vport->fc_myDID = did;
8475 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
8476 * @vport: pointer to a host virtual N_Port data structure.
8477 * @cmdiocb: pointer to lpfc command iocb data structure.
8478 * @ndlp: pointer to a node-list data structure.
8480 * This routine processes Request Node Identification Data (RNID) IOCB
8481 * received as an ELS unsolicited event. Only when the RNID specified format
8482 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
8483 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
8484 * Accept (ACC) the RNID ELS command. All the other RNID formats are
8485 * rejected by invoking the lpfc_els_rsp_reject() routine.
8488 * 0 - Successfully processed rnid iocb (currently always return 0)
8491 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
8492 struct lpfc_nodelist *ndlp)
8494 struct lpfc_dmabuf *pcmd;
8499 pcmd = cmdiocb->cmd_dmabuf;
8500 lp = (uint32_t *) pcmd->virt;
8507 switch (rn->Format) {
8509 case RNID_TOPOLOGY_DISC:
8511 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
8514 /* Reject this request because format not supported */
8515 stat.un.b.lsRjtRsvd0 = 0;
8516 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
8517 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
8518 stat.un.b.vendorUnique = 0;
8519 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
8526 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
8527 * @vport: pointer to a host virtual N_Port data structure.
8528 * @cmdiocb: pointer to lpfc command iocb data structure.
8529 * @ndlp: pointer to a node-list data structure.
8532 * 0 - Successfully processed echo iocb (currently always return 0)
8535 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
8536 struct lpfc_nodelist *ndlp)
8540 pcmd = (uint8_t *)cmdiocb->cmd_dmabuf->virt;
8542 /* skip over first word of echo command to find echo data */
8543 pcmd += sizeof(uint32_t);
8545 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
8550 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
8551 * @vport: pointer to a host virtual N_Port data structure.
8552 * @cmdiocb: pointer to lpfc command iocb data structure.
8553 * @ndlp: pointer to a node-list data structure.
8555 * This routine processes a Link Incident Report Registration(LIRR) IOCB
8556 * received as an ELS unsolicited event. Currently, this function just invokes
8557 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
8560 * 0 - Successfully processed lirr iocb (currently always return 0)
8563 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
8564 struct lpfc_nodelist *ndlp)
8568 /* For now, unconditionally reject this command */
8569 stat.un.b.lsRjtRsvd0 = 0;
8570 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
8571 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
8572 stat.un.b.vendorUnique = 0;
8573 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
8578 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
8579 * @vport: pointer to a host virtual N_Port data structure.
8580 * @cmdiocb: pointer to lpfc command iocb data structure.
8581 * @ndlp: pointer to a node-list data structure.
8583 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
8584 * received as an ELS unsolicited event. A request to RRQ shall only
8585 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
8586 * Nx_Port N_Port_ID of the target Exchange is the same as the
8587 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
8588 * not accepted, an LS_RJT with reason code "Unable to perform
8589 * command request" and reason code explanation "Invalid Originator
8590 * S_ID" shall be returned. For now, we just unconditionally accept
8591 * RRQ from the target.
8594 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
8595 struct lpfc_nodelist *ndlp)
8597 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
8598 if (vport->phba->sli_rev == LPFC_SLI_REV4)
8599 lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
8603 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
8604 * @phba: pointer to lpfc hba data structure.
8605 * @pmb: pointer to the driver internal queue element for mailbox command.
8607 * This routine is the completion callback function for the MBX_READ_LNK_STAT
8608 * mailbox command. This callback function is to actually send the Accept
8609 * (ACC) response to a Read Link Status (RLS) unsolicited IOCB event. It
8610 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
8611 * mailbox command, constructs the RLS response with the link statistics
8612 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
8613 * response to the RLS.
8615 * Note that the ndlp reference count will be incremented by 1 for holding the
8616 * ndlp and the reference to ndlp will be stored into the ndlp field of
8617 * the IOCB for the completion callback function to the RLS Accept Response
8622 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
8627 union lpfc_wqe128 *wqe;
8628 struct RLS_RSP *rls_rsp;
8630 struct lpfc_iocbq *elsiocb;
8631 struct lpfc_nodelist *ndlp;
8639 ndlp = pmb->ctx_ndlp;
8640 rxid = (uint16_t)((unsigned long)(pmb->ctx_buf) & 0xffff);
8641 oxid = (uint16_t)(((unsigned long)(pmb->ctx_buf) >> 16) & 0xffff);
8642 pmb->ctx_buf = NULL;
8643 pmb->ctx_ndlp = NULL;
8645 if (mb->mbxStatus) {
8646 mempool_free(pmb, phba->mbox_mem_pool);
8650 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
8651 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
8652 lpfc_max_els_tries, ndlp,
8653 ndlp->nlp_DID, ELS_CMD_ACC);
8655 /* Decrement the ndlp reference count from previous mbox command */
8659 mempool_free(pmb, phba->mbox_mem_pool);
8663 ulp_context = get_job_ulpcontext(phba, elsiocb);
8664 if (phba->sli_rev == LPFC_SLI_REV4) {
8665 wqe = &elsiocb->wqe;
8667 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, rxid);
8668 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, oxid);
8670 icmd = &elsiocb->iocb;
8671 icmd->ulpContext = rxid;
8672 icmd->unsli3.rcvsli3.ox_id = oxid;
8675 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
8676 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
8677 pcmd += sizeof(uint32_t); /* Skip past command */
8678 rls_rsp = (struct RLS_RSP *)pcmd;
8680 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
8681 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
8682 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
8683 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
8684 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
8685 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
8686 mempool_free(pmb, phba->mbox_mem_pool);
8687 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
8688 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
8689 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
8690 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
8691 elsiocb->iotag, ulp_context,
8692 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
8694 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
8695 phba->fc_stat.elsXmitACC++;
8696 elsiocb->ndlp = lpfc_nlp_get(ndlp);
8697 if (!elsiocb->ndlp) {
8698 lpfc_els_free_iocb(phba, elsiocb);
8702 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
8703 if (rc == IOCB_ERROR) {
8704 lpfc_els_free_iocb(phba, elsiocb);
8711 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
8712 * @vport: pointer to a host virtual N_Port data structure.
8713 * @cmdiocb: pointer to lpfc command iocb data structure.
8714 * @ndlp: pointer to a node-list data structure.
8716 * This routine processes Read Link Status (RLS) IOCB received as an
8717 * ELS unsolicited event. It first checks the remote port state. If the
8718 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
8719 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
8720 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
8721 * for reading the HBA link statistics. It is for the callback function,
8722 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
8723 * to actually sending out RPL Accept (ACC) response.
8726 * 0 - Successfully processed rls iocb (currently always return 0)
8729 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
8730 struct lpfc_nodelist *ndlp)
8732 struct lpfc_hba *phba = vport->phba;
8735 u32 ctx = get_job_ulpcontext(phba, cmdiocb);
8736 u32 ox_id = get_job_rcvoxid(phba, cmdiocb);
8738 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
8739 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
8740 /* reject the unsolicited RLS request and done with it */
8743 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
8745 lpfc_read_lnk_stat(phba, mbox);
8746 mbox->ctx_buf = (void *)((unsigned long)
8747 (ox_id << 16 | ctx));
8748 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
8749 if (!mbox->ctx_ndlp)
8751 mbox->vport = vport;
8752 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
8753 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
8754 != MBX_NOT_FINISHED)
8755 /* Mbox completion will send ELS Response */
8757 /* Decrement reference count used for the failed mbox
8762 mempool_free(mbox, phba->mbox_mem_pool);
8765 /* issue rejection response */
8766 stat.un.b.lsRjtRsvd0 = 0;
8767 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
8768 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
8769 stat.un.b.vendorUnique = 0;
8770 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
8775 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
8776 * @vport: pointer to a host virtual N_Port data structure.
8777 * @cmdiocb: pointer to lpfc command iocb data structure.
8778 * @ndlp: pointer to a node-list data structure.
8780 * This routine processes Read Timout Value (RTV) IOCB received as an
8781 * ELS unsolicited event. It first checks the remote port state. If the
8782 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
8783 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
8784 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
8785 * Value (RTV) unsolicited IOCB event.
8787 * Note that the ndlp reference count will be incremented by 1 for holding the
8788 * ndlp and the reference to ndlp will be stored into the ndlp field of
8789 * the IOCB for the completion callback function to the RTV Accept Response
8793 * 0 - Successfully processed rtv iocb (currently always return 0)
8796 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
8797 struct lpfc_nodelist *ndlp)
8801 union lpfc_wqe128 *wqe;
8802 struct lpfc_hba *phba = vport->phba;
8804 struct RTV_RSP *rtv_rsp;
8806 struct lpfc_iocbq *elsiocb;
8810 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
8811 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
8812 /* reject the unsolicited RTV request and done with it */
8815 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
8816 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
8817 lpfc_max_els_tries, ndlp,
8818 ndlp->nlp_DID, ELS_CMD_ACC);
8823 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
8824 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
8825 pcmd += sizeof(uint32_t); /* Skip past command */
8827 ulp_context = get_job_ulpcontext(phba, elsiocb);
8828 /* use the command's xri in the response */
8829 if (phba->sli_rev == LPFC_SLI_REV4) {
8830 wqe = &elsiocb->wqe;
8831 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
8832 get_job_ulpcontext(phba, cmdiocb));
8833 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8834 get_job_rcvoxid(phba, cmdiocb));
8836 icmd = &elsiocb->iocb;
8837 icmd->ulpContext = get_job_ulpcontext(phba, cmdiocb);
8838 icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, cmdiocb);
8841 rtv_rsp = (struct RTV_RSP *)pcmd;
8843 /* populate RTV payload */
8844 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
8845 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
8846 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
8847 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
8848 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
8850 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
8851 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
8852 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
8853 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
8854 "Data: x%x x%x x%x\n",
8855 elsiocb->iotag, ulp_context,
8856 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
8858 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
8859 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
8860 phba->fc_stat.elsXmitACC++;
8861 elsiocb->ndlp = lpfc_nlp_get(ndlp);
8862 if (!elsiocb->ndlp) {
8863 lpfc_els_free_iocb(phba, elsiocb);
8867 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
8868 if (rc == IOCB_ERROR) {
8869 lpfc_els_free_iocb(phba, elsiocb);
8875 /* issue rejection response */
8876 stat.un.b.lsRjtRsvd0 = 0;
8877 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
8878 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
8879 stat.un.b.vendorUnique = 0;
8880 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
8884 /* lpfc_issue_els_rrq - Process an unsolicited rrq iocb
8885 * @vport: pointer to a host virtual N_Port data structure.
8886 * @ndlp: pointer to a node-list data structure.
8887 * @did: DID of the target.
8888 * @rrq: Pointer to the rrq struct.
8890 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
8891 * successful, the completion handler will clear the RRQ.
8894 * 0 - Successfully sent rrq els iocb.
8895 * 1 - Failed to send rrq els iocb.
8898 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
8899 uint32_t did, struct lpfc_node_rrq *rrq)
8901 struct lpfc_hba *phba = vport->phba;
8902 struct RRQ *els_rrq;
8903 struct lpfc_iocbq *elsiocb;
8911 /* If ndlp is not NULL, we will bump the reference count on it */
8912 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
8913 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
8918 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
8920 /* For RRQ request, remainder of payload is Exchange IDs */
8921 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
8922 pcmd += sizeof(uint32_t);
8923 els_rrq = (struct RRQ *) pcmd;
8925 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
8926 bf_set(rrq_rxid, els_rrq, rrq->rxid);
8927 bf_set(rrq_did, els_rrq, vport->fc_myDID);
8928 els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
8929 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
8932 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8933 "Issue RRQ: did:x%x",
8934 did, rrq->xritag, rrq->rxid);
8935 elsiocb->context_un.rrq = rrq;
8936 elsiocb->cmd_cmpl = lpfc_cmpl_els_rrq;
8938 elsiocb->ndlp = lpfc_nlp_get(ndlp);
8942 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
8943 if (ret == IOCB_ERROR) {
8950 lpfc_els_free_iocb(phba, elsiocb);
8955 * lpfc_send_rrq - Sends ELS RRQ if needed.
8956 * @phba: pointer to lpfc hba data structure.
8957 * @rrq: pointer to the active rrq.
8959 * This routine will call the lpfc_issue_els_rrq if the rrq is
8960 * still active for the xri. If this function returns a failure then
8961 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
8963 * Returns 0 Success.
8967 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
8969 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
8974 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
8975 return lpfc_issue_els_rrq(rrq->vport, ndlp,
8982 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
8983 * @vport: pointer to a host virtual N_Port data structure.
8984 * @cmdsize: size of the ELS command.
8985 * @oldiocb: pointer to the original lpfc command iocb data structure.
8986 * @ndlp: pointer to a node-list data structure.
8988 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
8989 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
8991 * Note that the ndlp reference count will be incremented by 1 for holding the
8992 * ndlp and the reference to ndlp will be stored into the ndlp field of
8993 * the IOCB for the completion callback function to the RPL Accept Response
8997 * 0 - Successfully issued ACC RPL ELS command
8998 * 1 - Failed to issue ACC RPL ELS command
9001 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
9002 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
9005 struct lpfc_hba *phba = vport->phba;
9007 union lpfc_wqe128 *wqe;
9009 struct lpfc_iocbq *elsiocb;
9013 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
9014 ndlp->nlp_DID, ELS_CMD_ACC);
9019 ulp_context = get_job_ulpcontext(phba, elsiocb);
9020 if (phba->sli_rev == LPFC_SLI_REV4) {
9021 wqe = &elsiocb->wqe;
9023 bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
9024 get_job_ulpcontext(phba, oldiocb));
9025 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
9026 get_job_rcvoxid(phba, oldiocb));
9028 icmd = &elsiocb->iocb;
9029 icmd->ulpContext = get_job_ulpcontext(phba, oldiocb);
9030 icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, oldiocb);
9033 pcmd = elsiocb->cmd_dmabuf->virt;
9034 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
9035 pcmd += sizeof(uint16_t);
9036 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
9037 pcmd += sizeof(uint16_t);
9039 /* Setup the RPL ACC payload */
9040 rpl_rsp.listLen = be32_to_cpu(1);
9042 rpl_rsp.port_num_blk.portNum = 0;
9043 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
9044 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
9045 sizeof(struct lpfc_name));
9046 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
9047 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
9048 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
9049 "0120 Xmit ELS RPL ACC response tag x%x "
9050 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
9052 elsiocb->iotag, ulp_context,
9053 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
9055 elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
9056 phba->fc_stat.elsXmitACC++;
9057 elsiocb->ndlp = lpfc_nlp_get(ndlp);
9058 if (!elsiocb->ndlp) {
9059 lpfc_els_free_iocb(phba, elsiocb);
9063 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
9064 if (rc == IOCB_ERROR) {
9065 lpfc_els_free_iocb(phba, elsiocb);
9074 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
9075 * @vport: pointer to a host virtual N_Port data structure.
9076 * @cmdiocb: pointer to lpfc command iocb data structure.
9077 * @ndlp: pointer to a node-list data structure.
9079 * This routine processes Read Port List (RPL) IOCB received as an ELS
9080 * unsolicited event. It first checks the remote port state. If the remote
9081 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
9082 * invokes the lpfc_els_rsp_reject() routine to send reject response.
9083 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
9084 * to accept the RPL.
9087 * 0 - Successfully processed rpl iocb (currently always return 0)
9090 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
9091 struct lpfc_nodelist *ndlp)
9093 struct lpfc_dmabuf *pcmd;
9100 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
9101 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
9102 /* issue rejection response */
9103 stat.un.b.lsRjtRsvd0 = 0;
9104 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
9105 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
9106 stat.un.b.vendorUnique = 0;
9107 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
9109 /* rejected the unsolicited RPL request and done with it */
9113 pcmd = cmdiocb->cmd_dmabuf;
9114 lp = (uint32_t *) pcmd->virt;
9115 rpl = (RPL *) (lp + 1);
9116 maxsize = be32_to_cpu(rpl->maxsize);
9118 /* We support only one port */
9119 if ((rpl->index == 0) &&
9121 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
9122 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
9124 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
9126 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
9132 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
9133 * @vport: pointer to a virtual N_Port data structure.
9134 * @cmdiocb: pointer to lpfc command iocb data structure.
9135 * @ndlp: pointer to a node-list data structure.
9137 * This routine processes Fibre Channel Address Resolution Protocol
9138 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
9139 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
9140 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
9141 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
9142 * remote PortName is compared against the FC PortName stored in the @vport
9143 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
9144 * compared against the FC NodeName stored in the @vport data structure.
9145 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
9146 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
9147 * invoked to send out FARP Response to the remote node. Before sending the
9148 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
9149 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
9150 * routine is invoked to log into the remote port first.
9153 * 0 - Either the FARP Match Mode not supported or successfully processed
9156 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
9157 struct lpfc_nodelist *ndlp)
9159 struct lpfc_dmabuf *pcmd;
9164 did = get_job_els_rsp64_did(vport->phba, cmdiocb);
9165 pcmd = cmdiocb->cmd_dmabuf;
9166 lp = (uint32_t *) pcmd->virt;
9170 /* FARP-REQ received from DID <did> */
9171 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
9172 "0601 FARP-REQ received from DID x%x\n", did);
9173 /* We will only support match on WWPN or WWNN */
9174 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
9179 /* If this FARP command is searching for my portname */
9180 if (fp->Mflags & FARP_MATCH_PORT) {
9181 if (memcmp(&fp->RportName, &vport->fc_portname,
9182 sizeof(struct lpfc_name)) == 0)
9186 /* If this FARP command is searching for my nodename */
9187 if (fp->Mflags & FARP_MATCH_NODE) {
9188 if (memcmp(&fp->RnodeName, &vport->fc_nodename,
9189 sizeof(struct lpfc_name)) == 0)
9194 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
9195 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
9196 /* Log back into the node before sending the FARP. */
9197 if (fp->Rflags & FARP_REQUEST_PLOGI) {
9198 ndlp->nlp_prev_state = ndlp->nlp_state;
9199 lpfc_nlp_set_state(vport, ndlp,
9200 NLP_STE_PLOGI_ISSUE);
9201 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
9204 /* Send a FARP response to that node */
9205 if (fp->Rflags & FARP_REQUEST_FARPR)
9206 lpfc_issue_els_farpr(vport, did, 0);
9213 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
9214 * @vport: pointer to a host virtual N_Port data structure.
9215 * @cmdiocb: pointer to lpfc command iocb data structure.
9216 * @ndlp: pointer to a node-list data structure.
9218 * This routine processes Fibre Channel Address Resolution Protocol
9219 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
9220 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
9221 * the FARP response request.
9224 * 0 - Successfully processed FARPR IOCB (currently always return 0)
9227 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
9228 struct lpfc_nodelist *ndlp)
9232 did = get_job_els_rsp64_did(vport->phba, cmdiocb);
9234 /* FARP-RSP received from DID <did> */
9235 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
9236 "0600 FARP-RSP received from DID x%x\n", did);
9237 /* ACCEPT the Farp resp request */
9238 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
9244 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
9245 * @vport: pointer to a host virtual N_Port data structure.
9246 * @cmdiocb: pointer to lpfc command iocb data structure.
9247 * @fan_ndlp: pointer to a node-list data structure.
9249 * This routine processes a Fabric Address Notification (FAN) IOCB
9250 * command received as an ELS unsolicited event. The FAN ELS command will
9251 * only be processed on a physical port (i.e., the @vport represents the
9252 * physical port). The fabric NodeName and PortName from the FAN IOCB are
9253 * compared against those in the phba data structure. If any of those is
9254 * different, the lpfc_initial_flogi() routine is invoked to initialize
9255 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
9256 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
9257 * is invoked to register login to the fabric.
9260 * 0 - Successfully processed fan iocb (currently always return 0).
9263 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
9264 struct lpfc_nodelist *fan_ndlp)
9266 struct lpfc_hba *phba = vport->phba;
9270 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
9271 lp = (uint32_t *)cmdiocb->cmd_dmabuf->virt;
9273 /* FAN received; Fan does not have a reply sequence */
9274 if ((vport == phba->pport) &&
9275 (vport->port_state == LPFC_LOCAL_CFG_LINK)) {
9276 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
9277 sizeof(struct lpfc_name))) ||
9278 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
9279 sizeof(struct lpfc_name)))) {
9280 /* This port has switched fabrics. FLOGI is required */
9281 lpfc_issue_init_vfi(vport);
9283 /* FAN verified - skip FLOGI */
9284 vport->fc_myDID = vport->fc_prevDID;
9285 if (phba->sli_rev < LPFC_SLI_REV4)
9286 lpfc_issue_fabric_reglogin(vport);
9288 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
9289 "3138 Need register VFI: (x%x/%x)\n",
9290 vport->fc_prevDID, vport->fc_myDID);
9291 lpfc_issue_reg_vfi(vport);
9299 * lpfc_els_rcv_edc - Process an unsolicited EDC iocb
9300 * @vport: pointer to a host virtual N_Port data structure.
9301 * @cmdiocb: pointer to lpfc command iocb data structure.
9302 * @ndlp: pointer to a node-list data structure.
9305 * 0 - Successfully processed echo iocb (currently always return 0)
9308 lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
9309 struct lpfc_nodelist *ndlp)
9311 struct lpfc_hba *phba = vport->phba;
9312 struct fc_els_edc *edc_req;
9313 struct fc_tlv_desc *tlv;
9315 uint32_t *ptr, dtag;
9316 const char *dtag_nm;
9317 int desc_cnt = 0, bytes_remain;
9318 struct fc_diag_lnkflt_desc *plnkflt;
9320 payload = cmdiocb->cmd_dmabuf->virt;
9322 edc_req = (struct fc_els_edc *)payload;
9323 bytes_remain = be32_to_cpu(edc_req->desc_len);
9325 ptr = (uint32_t *)payload;
9326 lpfc_printf_vlog(vport, KERN_INFO,
9327 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
9328 "3319 Rcv EDC payload len %d: x%x x%x x%x\n",
9329 bytes_remain, be32_to_cpu(*ptr),
9330 be32_to_cpu(*(ptr + 1)), be32_to_cpu(*(ptr + 2)));
9332 /* No signal support unless there is a congestion descriptor */
9333 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
9334 phba->cgn_sig_freq = 0;
9335 phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN;
9337 if (bytes_remain <= 0)
9340 tlv = edc_req->desc;
9343 * cycle through EDC diagnostic descriptors to find the
9344 * congestion signaling capability descriptor
9346 while (bytes_remain) {
9347 if (bytes_remain < FC_TLV_DESC_HDR_SZ) {
9348 lpfc_printf_log(phba, KERN_WARNING,
9349 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
9350 "6464 Truncated TLV hdr on "
9351 "Diagnostic descriptor[%d]\n",
9356 dtag = be32_to_cpu(tlv->desc_tag);
9358 case ELS_DTAG_LNK_FAULT_CAP:
9359 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) ||
9360 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) !=
9361 sizeof(struct fc_diag_lnkflt_desc)) {
9362 lpfc_printf_log(phba, KERN_WARNING,
9363 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
9364 "6465 Truncated Link Fault Diagnostic "
9365 "descriptor[%d]: %d vs 0x%zx 0x%zx\n",
9366 desc_cnt, bytes_remain,
9367 FC_TLV_DESC_SZ_FROM_LENGTH(tlv),
9368 sizeof(struct fc_diag_lnkflt_desc));
9371 plnkflt = (struct fc_diag_lnkflt_desc *)tlv;
9372 lpfc_printf_log(phba, KERN_INFO,
9373 LOG_ELS | LOG_LDS_EVENT,
9374 "4626 Link Fault Desc Data: x%08x len x%x "
9375 "da x%x dd x%x interval x%x\n",
9376 be32_to_cpu(plnkflt->desc_tag),
9377 be32_to_cpu(plnkflt->desc_len),
9379 plnkflt->degrade_activate_threshold),
9381 plnkflt->degrade_deactivate_threshold),
9382 be32_to_cpu(plnkflt->fec_degrade_interval));
9384 case ELS_DTAG_CG_SIGNAL_CAP:
9385 if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) ||
9386 FC_TLV_DESC_SZ_FROM_LENGTH(tlv) !=
9387 sizeof(struct fc_diag_cg_sig_desc)) {
9389 phba, KERN_WARNING, LOG_CGN_MGMT,
9390 "6466 Truncated cgn signal Diagnostic "
9391 "descriptor[%d]: %d vs 0x%zx 0x%zx\n",
9392 desc_cnt, bytes_remain,
9393 FC_TLV_DESC_SZ_FROM_LENGTH(tlv),
9394 sizeof(struct fc_diag_cg_sig_desc));
9398 phba->cgn_reg_fpin = phba->cgn_init_reg_fpin;
9399 phba->cgn_reg_signal = phba->cgn_init_reg_signal;
9401 /* We start negotiation with lpfc_fabric_cgn_frequency.
9402 * When we process the EDC, we will settle on the
9405 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
9407 lpfc_least_capable_settings(
9408 phba, (struct fc_diag_cg_sig_desc *)tlv);
9411 dtag_nm = lpfc_get_tlv_dtag_nm(dtag);
9412 lpfc_printf_log(phba, KERN_WARNING,
9413 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
9414 "6467 unknown Diagnostic "
9415 "Descriptor[%d]: tag x%x (%s)\n",
9416 desc_cnt, dtag, dtag_nm);
9418 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv);
9419 tlv = fc_tlv_next_desc(tlv);
9423 /* Need to send back an ACC */
9424 lpfc_issue_els_edc_rsp(vport, cmdiocb, ndlp);
9426 lpfc_config_cgn_signal(phba);
9431 * lpfc_els_timeout - Handler funciton to the els timer
9432 * @t: timer context used to obtain the vport.
9434 * This routine is invoked by the ELS timer after timeout. It posts the ELS
9435 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
9436 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
9437 * up the worker thread. It is for the worker thread to invoke the routine
9438 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
9441 lpfc_els_timeout(struct timer_list *t)
9443 struct lpfc_vport *vport = from_timer(vport, t, els_tmofunc);
9444 struct lpfc_hba *phba = vport->phba;
9445 uint32_t tmo_posted;
9446 unsigned long iflag;
9448 spin_lock_irqsave(&vport->work_port_lock, iflag);
9449 tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
9450 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
9451 vport->work_port_events |= WORKER_ELS_TMO;
9452 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
9454 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
9455 lpfc_worker_wake_up(phba);
9461 * lpfc_els_timeout_handler - Process an els timeout event
9462 * @vport: pointer to a virtual N_Port data structure.
9464 * This routine is the actual handler function that processes an ELS timeout
9465 * event. It walks the ELS ring to get and abort all the IOCBs (except the
9466 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
9467 * invoking the lpfc_sli_issue_abort_iotag() routine.
9470 lpfc_els_timeout_handler(struct lpfc_vport *vport)
9472 struct lpfc_hba *phba = vport->phba;
9473 struct lpfc_sli_ring *pring;
9474 struct lpfc_iocbq *tmp_iocb, *piocb;
9476 struct lpfc_dmabuf *pcmd;
9477 uint32_t els_command = 0;
9479 uint32_t remote_ID = 0xffffffff;
9480 LIST_HEAD(abort_list);
9481 u32 ulp_command = 0, ulp_context = 0, did = 0, iotag = 0;
9484 timeout = (uint32_t)(phba->fc_ratov << 1);
9486 pring = lpfc_phba_elsring(phba);
9487 if (unlikely(!pring))
9490 if (phba->pport->load_flag & FC_UNLOADING)
9493 spin_lock_irq(&phba->hbalock);
9494 if (phba->sli_rev == LPFC_SLI_REV4)
9495 spin_lock(&pring->ring_lock);
9497 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
9498 ulp_command = get_job_cmnd(phba, piocb);
9499 ulp_context = get_job_ulpcontext(phba, piocb);
9500 did = get_job_els_rsp64_did(phba, piocb);
9502 if (phba->sli_rev == LPFC_SLI_REV4) {
9503 iotag = get_wqe_reqtag(piocb);
9506 iotag = cmd->ulpIoTag;
9509 if ((piocb->cmd_flag & LPFC_IO_LIBDFC) != 0 ||
9510 ulp_command == CMD_ABORT_XRI_CX ||
9511 ulp_command == CMD_ABORT_XRI_CN ||
9512 ulp_command == CMD_CLOSE_XRI_CN)
9515 if (piocb->vport != vport)
9518 pcmd = piocb->cmd_dmabuf;
9520 els_command = *(uint32_t *) (pcmd->virt);
9522 if (els_command == ELS_CMD_FARP ||
9523 els_command == ELS_CMD_FARPR ||
9524 els_command == ELS_CMD_FDISC)
9527 if (piocb->drvrTimeout > 0) {
9528 if (piocb->drvrTimeout >= timeout)
9529 piocb->drvrTimeout -= timeout;
9531 piocb->drvrTimeout = 0;
9535 remote_ID = 0xffffffff;
9536 if (ulp_command != CMD_GEN_REQUEST64_CR) {
9539 struct lpfc_nodelist *ndlp;
9540 ndlp = __lpfc_findnode_rpi(vport, ulp_context);
9542 remote_ID = ndlp->nlp_DID;
9544 list_add_tail(&piocb->dlist, &abort_list);
9546 if (phba->sli_rev == LPFC_SLI_REV4)
9547 spin_unlock(&pring->ring_lock);
9548 spin_unlock_irq(&phba->hbalock);
9550 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
9551 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9552 "0127 ELS timeout Data: x%x x%x x%x "
9553 "x%x\n", els_command,
9554 remote_ID, ulp_command, iotag);
9556 spin_lock_irq(&phba->hbalock);
9557 list_del_init(&piocb->dlist);
9558 lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL);
9559 spin_unlock_irq(&phba->hbalock);
9562 /* Make sure HBA is alive */
9563 lpfc_issue_hb_tmo(phba);
9565 if (!list_empty(&pring->txcmplq))
9566 if (!(phba->pport->load_flag & FC_UNLOADING))
9567 mod_timer(&vport->els_tmofunc,
9568 jiffies + msecs_to_jiffies(1000 * timeout));
9572 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
9573 * @vport: pointer to a host virtual N_Port data structure.
9575 * This routine is used to clean up all the outstanding ELS commands on a
9576 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
9577 * routine. After that, it walks the ELS transmit queue to remove all the
9578 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
9579 * the IOCBs with a non-NULL completion callback function, the callback
9580 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
9581 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
9582 * callback function, the IOCB will simply be released. Finally, it walks
9583 * the ELS transmit completion queue to issue an abort IOCB to any transmit
9584 * completion queue IOCB that is associated with the @vport and is not
9585 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
9586 * part of the discovery state machine) out to HBA by invoking the
9587 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
9588 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
9589 * the IOCBs are aborted when this function returns.
9592 lpfc_els_flush_cmd(struct lpfc_vport *vport)
9594 LIST_HEAD(abort_list);
9595 struct lpfc_hba *phba = vport->phba;
9596 struct lpfc_sli_ring *pring;
9597 struct lpfc_iocbq *tmp_iocb, *piocb;
9599 unsigned long iflags = 0;
9601 lpfc_fabric_abort_vport(vport);
9604 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
9605 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
9606 * ultimately grabs the ring_lock, the driver must splice the list into
9607 * a working list and release the locks before calling the abort.
9609 spin_lock_irqsave(&phba->hbalock, iflags);
9610 pring = lpfc_phba_elsring(phba);
9612 /* Bail out if we've no ELS wq, like in PCI error recovery case. */
9613 if (unlikely(!pring)) {
9614 spin_unlock_irqrestore(&phba->hbalock, iflags);
9618 if (phba->sli_rev == LPFC_SLI_REV4)
9619 spin_lock(&pring->ring_lock);
9621 /* First we need to issue aborts to outstanding cmds on txcmpl */
9622 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
9623 if (piocb->cmd_flag & LPFC_IO_LIBDFC)
9626 if (piocb->vport != vport)
9629 if (piocb->cmd_flag & LPFC_DRIVER_ABORTED)
9632 /* On the ELS ring we can have ELS_REQUESTs or
9633 * GEN_REQUESTs waiting for a response.
9635 ulp_command = get_job_cmnd(phba, piocb);
9636 if (ulp_command == CMD_ELS_REQUEST64_CR) {
9637 list_add_tail(&piocb->dlist, &abort_list);
9639 /* If the link is down when flushing ELS commands
9640 * the firmware will not complete them till after
9641 * the link comes back up. This may confuse
9642 * discovery for the new link up, so we need to
9643 * change the compl routine to just clean up the iocb
9644 * and avoid any retry logic.
9646 if (phba->link_state == LPFC_LINK_DOWN)
9647 piocb->cmd_cmpl = lpfc_cmpl_els_link_down;
9649 if (ulp_command == CMD_GEN_REQUEST64_CR)
9650 list_add_tail(&piocb->dlist, &abort_list);
9653 if (phba->sli_rev == LPFC_SLI_REV4)
9654 spin_unlock(&pring->ring_lock);
9655 spin_unlock_irqrestore(&phba->hbalock, iflags);
9657 /* Abort each txcmpl iocb on aborted list and remove the dlist links. */
9658 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
9659 spin_lock_irqsave(&phba->hbalock, iflags);
9660 list_del_init(&piocb->dlist);
9661 lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL);
9662 spin_unlock_irqrestore(&phba->hbalock, iflags);
9664 /* Make sure HBA is alive */
9665 lpfc_issue_hb_tmo(phba);
9667 if (!list_empty(&abort_list))
9668 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9669 "3387 abort list for txq not empty\n");
9670 INIT_LIST_HEAD(&abort_list);
9672 spin_lock_irqsave(&phba->hbalock, iflags);
9673 if (phba->sli_rev == LPFC_SLI_REV4)
9674 spin_lock(&pring->ring_lock);
9676 /* No need to abort the txq list,
9677 * just queue them up for lpfc_sli_cancel_iocbs
9679 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
9680 ulp_command = get_job_cmnd(phba, piocb);
9682 if (piocb->cmd_flag & LPFC_IO_LIBDFC)
9685 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
9686 if (ulp_command == CMD_QUE_RING_BUF_CN ||
9687 ulp_command == CMD_QUE_RING_BUF64_CN ||
9688 ulp_command == CMD_CLOSE_XRI_CN ||
9689 ulp_command == CMD_ABORT_XRI_CN ||
9690 ulp_command == CMD_ABORT_XRI_CX)
9693 if (piocb->vport != vport)
9696 list_del_init(&piocb->list);
9697 list_add_tail(&piocb->list, &abort_list);
9700 /* The same holds true for any FLOGI/FDISC on the fabric_iocb_list */
9701 if (vport == phba->pport) {
9702 list_for_each_entry_safe(piocb, tmp_iocb,
9703 &phba->fabric_iocb_list, list) {
9704 list_del_init(&piocb->list);
9705 list_add_tail(&piocb->list, &abort_list);
9709 if (phba->sli_rev == LPFC_SLI_REV4)
9710 spin_unlock(&pring->ring_lock);
9711 spin_unlock_irqrestore(&phba->hbalock, iflags);
9713 /* Cancel all the IOCBs from the completions list */
9714 lpfc_sli_cancel_iocbs(phba, &abort_list,
9715 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
9721 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
9722 * @phba: pointer to lpfc hba data structure.
9724 * This routine is used to clean up all the outstanding ELS commands on a
9725 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
9726 * routine. After that, it walks the ELS transmit queue to remove all the
9727 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
9728 * the IOCBs with the completion callback function associated, the callback
9729 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
9730 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
9731 * callback function associated, the IOCB will simply be released. Finally,
9732 * it walks the ELS transmit completion queue to issue an abort IOCB to any
9733 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
9734 * management plane IOCBs that are not part of the discovery state machine)
9735 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
9738 lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
9740 struct lpfc_vport *vport;
9742 spin_lock_irq(&phba->port_list_lock);
9743 list_for_each_entry(vport, &phba->port_list, listentry)
9744 lpfc_els_flush_cmd(vport);
9745 spin_unlock_irq(&phba->port_list_lock);
9751 * lpfc_send_els_failure_event - Posts an ELS command failure event
9752 * @phba: Pointer to hba context object.
9753 * @cmdiocbp: Pointer to command iocb which reported error.
9754 * @rspiocbp: Pointer to response iocb which reported error.
9756 * This function sends an event when there is an ELS command
9760 lpfc_send_els_failure_event(struct lpfc_hba *phba,
9761 struct lpfc_iocbq *cmdiocbp,
9762 struct lpfc_iocbq *rspiocbp)
9764 struct lpfc_vport *vport = cmdiocbp->vport;
9765 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9766 struct lpfc_lsrjt_event lsrjt_event;
9767 struct lpfc_fabric_event_header fabric_event;
9769 struct lpfc_nodelist *ndlp;
9771 u32 ulp_status, ulp_word4;
9773 ndlp = cmdiocbp->ndlp;
9777 ulp_status = get_job_ulpstatus(phba, rspiocbp);
9778 ulp_word4 = get_job_word4(phba, rspiocbp);
9780 if (ulp_status == IOSTAT_LS_RJT) {
9781 lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
9782 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
9783 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
9784 sizeof(struct lpfc_name));
9785 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
9786 sizeof(struct lpfc_name));
9787 pcmd = (uint32_t *)cmdiocbp->cmd_dmabuf->virt;
9788 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
9789 stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4);
9790 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
9791 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
9792 fc_host_post_vendor_event(shost,
9793 fc_get_event_number(),
9794 sizeof(lsrjt_event),
9795 (char *)&lsrjt_event,
9799 if (ulp_status == IOSTAT_NPORT_BSY ||
9800 ulp_status == IOSTAT_FABRIC_BSY) {
9801 fabric_event.event_type = FC_REG_FABRIC_EVENT;
9802 if (ulp_status == IOSTAT_NPORT_BSY)
9803 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
9805 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
9806 memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
9807 sizeof(struct lpfc_name));
9808 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
9809 sizeof(struct lpfc_name));
9810 fc_host_post_vendor_event(shost,
9811 fc_get_event_number(),
9812 sizeof(fabric_event),
9813 (char *)&fabric_event,
9821 * lpfc_send_els_event - Posts unsolicited els event
9822 * @vport: Pointer to vport object.
9823 * @ndlp: Pointer FC node object.
9824 * @payload: ELS command code type.
9826 * This function posts an event when there is an incoming
9827 * unsolicited ELS command.
9830 lpfc_send_els_event(struct lpfc_vport *vport,
9831 struct lpfc_nodelist *ndlp,
9834 struct lpfc_els_event_header *els_data = NULL;
9835 struct lpfc_logo_event *logo_data = NULL;
9836 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9838 if (*payload == ELS_CMD_LOGO) {
9839 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
9841 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9842 "0148 Failed to allocate memory "
9843 "for LOGO event\n");
9846 els_data = &logo_data->header;
9848 els_data = kmalloc(sizeof(struct lpfc_els_event_header),
9851 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
9852 "0149 Failed to allocate memory "
9857 els_data->event_type = FC_REG_ELS_EVENT;
9860 els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
9863 els_data->subcategory = LPFC_EVENT_PRLO_RCV;
9866 els_data->subcategory = LPFC_EVENT_ADISC_RCV;
9869 els_data->subcategory = LPFC_EVENT_LOGO_RCV;
9870 /* Copy the WWPN in the LOGO payload */
9871 memcpy(logo_data->logo_wwpn, &payload[2],
9872 sizeof(struct lpfc_name));
9878 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
9879 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
9880 if (*payload == ELS_CMD_LOGO) {
9881 fc_host_post_vendor_event(shost,
9882 fc_get_event_number(),
9883 sizeof(struct lpfc_logo_event),
9888 fc_host_post_vendor_event(shost,
9889 fc_get_event_number(),
9890 sizeof(struct lpfc_els_event_header),
9900 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_li_event_nm, fc_fpin_li_event_types,
9901 FC_FPIN_LI_EVT_TYPES_INIT);
9903 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_deli_event_nm, fc_fpin_deli_event_types,
9904 FC_FPIN_DELI_EVT_TYPES_INIT);
9906 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_event_nm, fc_fpin_congn_event_types,
9907 FC_FPIN_CONGN_EVT_TYPES_INIT);
9909 DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_severity_nm,
9910 fc_fpin_congn_severity_types,
9911 FC_FPIN_CONGN_SEVERITY_INIT);
9915 * lpfc_display_fpin_wwpn - Display WWPNs accessible by the attached port
9916 * @phba: Pointer to phba object.
9917 * @wwnlist: Pointer to list of WWPNs in FPIN payload
9918 * @cnt: count of WWPNs in FPIN payload
9920 * This routine is called by LI and PC descriptors.
9921 * Limit the number of WWPNs displayed to 6 log messages, 6 per log message
9924 lpfc_display_fpin_wwpn(struct lpfc_hba *phba, __be64 *wwnlist, u32 cnt)
9926 char buf[LPFC_FPIN_WWPN_LINE_SZ];
9934 len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, "Accessible WWPNs:");
9935 for (i = 0; i < cnt; i++) {
9936 /* Are we on the last WWPN */
9940 /* Extract the next WWPN from the payload */
9942 wwpn = be64_to_cpu(wwn);
9943 len += scnprintf(buf + len, LPFC_FPIN_WWPN_LINE_SZ - len,
9946 /* Log a message if we are on the last WWPN
9947 * or if we hit the max allowed per message.
9950 if (wcnt == LPFC_FPIN_WWPN_LINE_CNT || endit) {
9952 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9955 /* Check if we reached the last WWPN */
9959 /* Limit the number of log message displayed per FPIN */
9961 if (line == LPFC_FPIN_WWPN_NUM_LINE) {
9962 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9963 "4687 %d WWPNs Truncated\n",
9968 /* Start over with next log message */
9970 len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ,
9971 "Additional WWPNs:");
9977 * lpfc_els_rcv_fpin_li - Process an FPIN Link Integrity Event.
9978 * @phba: Pointer to phba object.
9979 * @tlv: Pointer to the Link Integrity Notification Descriptor.
9981 * This function processes a Link Integrity FPIN event by logging a message.
9984 lpfc_els_rcv_fpin_li(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
9986 struct fc_fn_li_desc *li = (struct fc_fn_li_desc *)tlv;
9987 const char *li_evt_str;
9990 li_evt = be16_to_cpu(li->event_type);
9991 li_evt_str = lpfc_get_fpin_li_event_nm(li_evt);
9992 cnt = be32_to_cpu(li->pname_count);
9994 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9995 "4680 FPIN Link Integrity %s (x%x) "
9996 "Detecting PN x%016llx Attached PN x%016llx "
9997 "Duration %d mSecs Count %d Port Cnt %d\n",
9999 be64_to_cpu(li->detecting_wwpn),
10000 be64_to_cpu(li->attached_wwpn),
10001 be32_to_cpu(li->event_threshold),
10002 be32_to_cpu(li->event_count), cnt);
10004 lpfc_display_fpin_wwpn(phba, (__be64 *)&li->pname_list, cnt);
10008 * lpfc_els_rcv_fpin_del - Process an FPIN Delivery Event.
10009 * @phba: Pointer to hba object.
10010 * @tlv: Pointer to the Delivery Notification Descriptor TLV
10012 * This function processes a Delivery FPIN event by logging a message.
10015 lpfc_els_rcv_fpin_del(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
10017 struct fc_fn_deli_desc *del = (struct fc_fn_deli_desc *)tlv;
10018 const char *del_rsn_str;
10022 del_rsn = be16_to_cpu(del->deli_reason_code);
10023 del_rsn_str = lpfc_get_fpin_deli_event_nm(del_rsn);
10025 /* Skip over desc_tag/desc_len header to payload */
10026 frame = (__be32 *)(del + 1);
10028 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
10029 "4681 FPIN Delivery %s (x%x) "
10030 "Detecting PN x%016llx Attached PN x%016llx "
10032 "DiscHdr1 x%08x DiscHdr2 x%08x DiscHdr3 x%08x "
10033 "DiscHdr4 x%08x DiscHdr5 x%08x\n",
10034 del_rsn_str, del_rsn,
10035 be64_to_cpu(del->detecting_wwpn),
10036 be64_to_cpu(del->attached_wwpn),
10037 be32_to_cpu(frame[0]),
10038 be32_to_cpu(frame[1]),
10039 be32_to_cpu(frame[2]),
10040 be32_to_cpu(frame[3]),
10041 be32_to_cpu(frame[4]),
10042 be32_to_cpu(frame[5]));
10046 * lpfc_els_rcv_fpin_peer_cgn - Process a FPIN Peer Congestion Event.
10047 * @phba: Pointer to hba object.
10048 * @tlv: Pointer to the Peer Congestion Notification Descriptor TLV
10050 * This function processes a Peer Congestion FPIN event by logging a message.
10053 lpfc_els_rcv_fpin_peer_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
10055 struct fc_fn_peer_congn_desc *pc = (struct fc_fn_peer_congn_desc *)tlv;
10056 const char *pc_evt_str;
10059 pc_evt = be16_to_cpu(pc->event_type);
10060 pc_evt_str = lpfc_get_fpin_congn_event_nm(pc_evt);
10061 cnt = be32_to_cpu(pc->pname_count);
10063 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_ELS,
10064 "4684 FPIN Peer Congestion %s (x%x) "
10065 "Duration %d mSecs "
10066 "Detecting PN x%016llx Attached PN x%016llx "
10067 "Impacted Port Cnt %d\n",
10068 pc_evt_str, pc_evt,
10069 be32_to_cpu(pc->event_period),
10070 be64_to_cpu(pc->detecting_wwpn),
10071 be64_to_cpu(pc->attached_wwpn),
10074 lpfc_display_fpin_wwpn(phba, (__be64 *)&pc->pname_list, cnt);
10078 * lpfc_els_rcv_fpin_cgn - Process an FPIN Congestion notification
10079 * @phba: Pointer to hba object.
10080 * @tlv: Pointer to the Congestion Notification Descriptor TLV
10082 * This function processes an FPIN Congestion Notifiction. The notification
10083 * could be an Alarm or Warning. This routine feeds that data into driver's
10084 * running congestion algorithm. It also processes the FPIN by
10085 * logging a message. It returns 1 to indicate deliver this message
10086 * to the upper layer or 0 to indicate don't deliver it.
10089 lpfc_els_rcv_fpin_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
10091 struct lpfc_cgn_info *cp;
10092 struct fc_fn_congn_desc *cgn = (struct fc_fn_congn_desc *)tlv;
10093 const char *cgn_evt_str;
10095 const char *cgn_sev_str;
10099 bool nm_log = false;
10102 cgn_evt = be16_to_cpu(cgn->event_type);
10103 cgn_evt_str = lpfc_get_fpin_congn_event_nm(cgn_evt);
10104 cgn_sev = cgn->severity;
10105 cgn_sev_str = lpfc_get_fpin_congn_severity_nm(cgn_sev);
10107 /* The driver only takes action on a Credit Stall or Oversubscription
10108 * event type to engage the IO algorithm. The driver prints an
10109 * unmaskable message only for Lost Credit and Credit Stall.
10110 * TODO: Still need to have definition of host action on clear,
10111 * lost credit and device specific event types.
10114 case FPIN_CONGN_LOST_CREDIT:
10117 case FPIN_CONGN_CREDIT_STALL:
10120 case FPIN_CONGN_OVERSUBSCRIPTION:
10121 if (cgn_evt == FPIN_CONGN_OVERSUBSCRIPTION)
10124 case FPIN_CONGN_SEVERITY_ERROR:
10125 /* Take action here for an Alarm event */
10126 if (phba->cmf_active_mode != LPFC_CFG_OFF) {
10127 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) {
10128 /* Track of alarm cnt for SYNC_WQE */
10129 atomic_inc(&phba->cgn_sync_alarm_cnt);
10131 /* Track alarm cnt for cgn_info regardless
10132 * of whether CMF is configured for Signals
10135 atomic_inc(&phba->cgn_fabric_alarm_cnt);
10139 case FPIN_CONGN_SEVERITY_WARNING:
10140 /* Take action here for a Warning event */
10141 if (phba->cmf_active_mode != LPFC_CFG_OFF) {
10142 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) {
10143 /* Track of warning cnt for SYNC_WQE */
10144 atomic_inc(&phba->cgn_sync_warn_cnt);
10146 /* Track warning cnt and freq for cgn_info
10147 * regardless of whether CMF is configured for
10148 * Signals or FPINs.
10150 atomic_inc(&phba->cgn_fabric_warn_cnt);
10152 /* Save frequency in ms */
10153 phba->cgn_fpin_frequency =
10154 be32_to_cpu(cgn->event_period);
10155 value = phba->cgn_fpin_frequency;
10157 cp = (struct lpfc_cgn_info *)
10159 cp->cgn_alarm_freq =
10160 cpu_to_le16(value);
10161 cp->cgn_warn_freq =
10162 cpu_to_le16(value);
10163 crc = lpfc_cgn_calc_crc32
10166 LPFC_CGN_CRC32_SEED);
10167 cp->cgn_info_crc = cpu_to_le32(crc);
10170 /* Don't deliver to upper layer since
10171 * driver took action on this tlv.
10180 /* Change the log level to unmaskable for the following event types. */
10181 lpfc_printf_log(phba, (nm_log ? KERN_WARNING : KERN_INFO),
10182 LOG_CGN_MGMT | LOG_ELS,
10183 "4683 FPIN CONGESTION %s type %s (x%x) Event "
10184 "Duration %d mSecs\n",
10185 cgn_sev_str, cgn_evt_str, cgn_evt,
10186 be32_to_cpu(cgn->event_period));
10191 lpfc_els_rcv_fpin(struct lpfc_vport *vport, void *p, u32 fpin_length)
10193 struct lpfc_hba *phba = vport->phba;
10194 struct fc_els_fpin *fpin = (struct fc_els_fpin *)p;
10195 struct fc_tlv_desc *tlv, *first_tlv, *current_tlv;
10196 const char *dtag_nm;
10197 int desc_cnt = 0, bytes_remain, cnt;
10198 u32 dtag, deliver = 0;
10201 /* FPINs handled only if we are in the right discovery state */
10202 if (vport->port_state < LPFC_DISC_AUTH)
10205 /* make sure there is the full fpin header */
10206 if (fpin_length < sizeof(struct fc_els_fpin))
10209 /* Sanity check descriptor length. The desc_len value does not
10210 * include space for the ELS command and the desc_len fields.
10212 len = be32_to_cpu(fpin->desc_len);
10213 if (fpin_length < len + sizeof(struct fc_els_fpin)) {
10214 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
10215 "4671 Bad ELS FPIN length %d: %d\n",
10220 tlv = (struct fc_tlv_desc *)&fpin->fpin_desc[0];
10222 bytes_remain = fpin_length - offsetof(struct fc_els_fpin, fpin_desc);
10223 bytes_remain = min_t(u32, bytes_remain, be32_to_cpu(fpin->desc_len));
10225 /* process each descriptor separately */
10226 while (bytes_remain >= FC_TLV_DESC_HDR_SZ &&
10227 bytes_remain >= FC_TLV_DESC_SZ_FROM_LENGTH(tlv)) {
10228 dtag = be32_to_cpu(tlv->desc_tag);
10230 case ELS_DTAG_LNK_INTEGRITY:
10231 lpfc_els_rcv_fpin_li(phba, tlv);
10234 case ELS_DTAG_DELIVERY:
10235 lpfc_els_rcv_fpin_del(phba, tlv);
10238 case ELS_DTAG_PEER_CONGEST:
10239 lpfc_els_rcv_fpin_peer_cgn(phba, tlv);
10242 case ELS_DTAG_CONGESTION:
10243 deliver = lpfc_els_rcv_fpin_cgn(phba, tlv);
10246 dtag_nm = lpfc_get_tlv_dtag_nm(dtag);
10247 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
10248 "4678 unknown FPIN descriptor[%d]: "
10250 desc_cnt, dtag, dtag_nm);
10252 /* If descriptor is bad, drop the rest of the data */
10255 lpfc_cgn_update_stat(phba, dtag);
10256 cnt = be32_to_cpu(tlv->desc_len);
10258 /* Sanity check descriptor length. The desc_len value does not
10259 * include space for the desc_tag and the desc_len fields.
10261 len -= (cnt + sizeof(struct fc_tlv_desc));
10263 dtag_nm = lpfc_get_tlv_dtag_nm(dtag);
10264 lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
10265 "4672 Bad FPIN descriptor TLV length "
10267 cnt, len, fpin_length, dtag_nm);
10272 bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv);
10273 tlv = fc_tlv_next_desc(tlv);
10275 /* Format payload such that the FPIN delivered to the
10276 * upper layer is a single descriptor FPIN.
10279 memcpy(first_tlv, current_tlv,
10280 (cnt + sizeof(struct fc_els_fpin)));
10282 /* Adjust the length so that it only reflects a
10283 * single descriptor FPIN.
10285 fpin_length = cnt + sizeof(struct fc_els_fpin);
10286 fpin->desc_len = cpu_to_be32(fpin_length);
10287 fpin_length += sizeof(struct fc_els_fpin); /* the entire FPIN */
10289 /* Send every descriptor individually to the upper layer */
10291 fc_host_fpin_rcv(lpfc_shost_from_vport(vport),
10292 fpin_length, (char *)fpin, 0);
10298 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
10299 * @phba: pointer to lpfc hba data structure.
10300 * @pring: pointer to a SLI ring.
10301 * @vport: pointer to a host virtual N_Port data structure.
10302 * @elsiocb: pointer to lpfc els command iocb data structure.
10304 * This routine is used for processing the IOCB associated with a unsolicited
10305 * event. It first determines whether there is an existing ndlp that matches
10306 * the DID from the unsolicited IOCB. If not, it will create a new one with
10307 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
10308 * IOCB is then used to invoke the proper routine and to set up proper state
10309 * of the discovery state machine.
10312 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10313 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
10315 struct lpfc_nodelist *ndlp;
10316 struct ls_rjt stat;
10317 u32 *payload, payload_len;
10318 u32 cmd = 0, did = 0, newnode, status = 0;
10319 uint8_t rjt_exp, rjt_err = 0, init_link = 0;
10320 struct lpfc_wcqe_complete *wcqe_cmpl = NULL;
10321 LPFC_MBOXQ_t *mbox;
10323 if (!vport || !elsiocb->cmd_dmabuf)
10327 wcqe_cmpl = &elsiocb->wcqe_cmpl;
10328 payload = elsiocb->cmd_dmabuf->virt;
10329 if (phba->sli_rev == LPFC_SLI_REV4)
10330 payload_len = wcqe_cmpl->total_data_placed;
10332 payload_len = elsiocb->iocb.unsli3.rcvsli3.acc_len;
10333 status = get_job_ulpstatus(phba, elsiocb);
10335 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
10336 lpfc_sli3_post_buffer(phba, pring, 1);
10338 did = get_job_els_rsp64_did(phba, elsiocb);
10340 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10341 "RCV Unsol ELS: status:x%x/x%x did:x%x",
10342 status, get_job_word4(phba, elsiocb), did);
10346 /* Check to see if link went down during discovery */
10347 if (lpfc_els_chk_latt(vport))
10350 /* Ignore traffic received during vport shutdown. */
10351 if (vport->load_flag & FC_UNLOADING)
10354 /* If NPort discovery is delayed drop incoming ELS */
10355 if ((vport->fc_flag & FC_DISC_DELAYED) &&
10356 (cmd != ELS_CMD_PLOGI))
10359 ndlp = lpfc_findnode_did(vport, did);
10361 /* Cannot find existing Fabric ndlp, so allocate a new one */
10362 ndlp = lpfc_nlp_init(vport, did);
10365 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
10367 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
10368 ndlp->nlp_type |= NLP_FABRIC;
10369 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
10370 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
10374 phba->fc_stat.elsRcvFrame++;
10377 * Do not process any unsolicited ELS commands
10378 * if the ndlp is in DEV_LOSS
10380 spin_lock_irq(&ndlp->lock);
10381 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
10382 spin_unlock_irq(&ndlp->lock);
10384 lpfc_nlp_put(ndlp);
10387 spin_unlock_irq(&ndlp->lock);
10389 elsiocb->ndlp = lpfc_nlp_get(ndlp);
10390 if (!elsiocb->ndlp)
10392 elsiocb->vport = vport;
10394 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
10395 cmd &= ELS_CMD_MASK;
10397 /* ELS command <elsCmd> received from NPORT <did> */
10398 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
10399 "0112 ELS command x%x received from NPORT x%x "
10400 "refcnt %d Data: x%x x%x x%x x%x\n",
10401 cmd, did, kref_read(&ndlp->kref), vport->port_state,
10402 vport->fc_flag, vport->fc_myDID, vport->fc_prevDID);
10404 /* reject till our FLOGI completes or PLOGI assigned DID via PT2PT */
10405 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
10406 (cmd != ELS_CMD_FLOGI) &&
10407 !((cmd == ELS_CMD_PLOGI) && (vport->fc_flag & FC_PT2PT))) {
10408 rjt_err = LSRJT_LOGICAL_BSY;
10409 rjt_exp = LSEXP_NOTHING_MORE;
10414 case ELS_CMD_PLOGI:
10415 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10416 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
10417 did, vport->port_state, ndlp->nlp_flag);
10419 phba->fc_stat.elsRcvPLOGI++;
10420 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
10421 if (phba->sli_rev == LPFC_SLI_REV4 &&
10422 (phba->pport->fc_flag & FC_PT2PT)) {
10423 vport->fc_prevDID = vport->fc_myDID;
10424 /* Our DID needs to be updated before registering
10425 * the vfi. This is done in lpfc_rcv_plogi but
10426 * that is called after the reg_vfi.
10429 bf_get(els_rsp64_sid,
10430 &elsiocb->wqe.xmit_els_rsp);
10431 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
10432 "3312 Remote port assigned DID x%x "
10433 "%x\n", vport->fc_myDID,
10434 vport->fc_prevDID);
10437 lpfc_send_els_event(vport, ndlp, payload);
10439 /* If Nport discovery is delayed, reject PLOGIs */
10440 if (vport->fc_flag & FC_DISC_DELAYED) {
10441 rjt_err = LSRJT_UNABLE_TPC;
10442 rjt_exp = LSEXP_NOTHING_MORE;
10446 if (vport->port_state < LPFC_DISC_AUTH) {
10447 if (!(phba->pport->fc_flag & FC_PT2PT) ||
10448 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
10449 rjt_err = LSRJT_UNABLE_TPC;
10450 rjt_exp = LSEXP_NOTHING_MORE;
10455 spin_lock_irq(&ndlp->lock);
10456 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
10457 spin_unlock_irq(&ndlp->lock);
10459 lpfc_disc_state_machine(vport, ndlp, elsiocb,
10460 NLP_EVT_RCV_PLOGI);
10463 case ELS_CMD_FLOGI:
10464 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10465 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
10466 did, vport->port_state, ndlp->nlp_flag);
10468 phba->fc_stat.elsRcvFLOGI++;
10470 /* If the driver believes fabric discovery is done and is ready,
10471 * bounce the link. There is some descrepancy.
10473 if (vport->port_state >= LPFC_LOCAL_CFG_LINK &&
10474 vport->fc_flag & FC_PT2PT &&
10475 vport->rcv_flogi_cnt >= 1) {
10476 rjt_err = LSRJT_LOGICAL_BSY;
10477 rjt_exp = LSEXP_NOTHING_MORE;
10482 lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
10483 /* retain node if our response is deferred */
10484 if (phba->defer_flogi_acc_flag)
10487 lpfc_disc_state_machine(vport, ndlp, NULL,
10488 NLP_EVT_DEVICE_RM);
10491 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10492 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
10493 did, vport->port_state, ndlp->nlp_flag);
10495 phba->fc_stat.elsRcvLOGO++;
10496 lpfc_send_els_event(vport, ndlp, payload);
10497 if (vport->port_state < LPFC_DISC_AUTH) {
10498 rjt_err = LSRJT_UNABLE_TPC;
10499 rjt_exp = LSEXP_NOTHING_MORE;
10502 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
10504 lpfc_disc_state_machine(vport, ndlp, NULL,
10505 NLP_EVT_DEVICE_RM);
10508 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10509 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
10510 did, vport->port_state, ndlp->nlp_flag);
10512 phba->fc_stat.elsRcvPRLO++;
10513 lpfc_send_els_event(vport, ndlp, payload);
10514 if (vport->port_state < LPFC_DISC_AUTH) {
10515 rjt_err = LSRJT_UNABLE_TPC;
10516 rjt_exp = LSEXP_NOTHING_MORE;
10519 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
10522 phba->fc_stat.elsRcvLCB++;
10523 lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
10526 phba->fc_stat.elsRcvRDP++;
10527 lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
10530 phba->fc_stat.elsRcvRSCN++;
10531 lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
10533 lpfc_disc_state_machine(vport, ndlp, NULL,
10534 NLP_EVT_DEVICE_RM);
10536 case ELS_CMD_ADISC:
10537 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10538 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
10539 did, vport->port_state, ndlp->nlp_flag);
10541 lpfc_send_els_event(vport, ndlp, payload);
10542 phba->fc_stat.elsRcvADISC++;
10543 if (vport->port_state < LPFC_DISC_AUTH) {
10544 rjt_err = LSRJT_UNABLE_TPC;
10545 rjt_exp = LSEXP_NOTHING_MORE;
10548 lpfc_disc_state_machine(vport, ndlp, elsiocb,
10549 NLP_EVT_RCV_ADISC);
10551 case ELS_CMD_PDISC:
10552 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10553 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
10554 did, vport->port_state, ndlp->nlp_flag);
10556 phba->fc_stat.elsRcvPDISC++;
10557 if (vport->port_state < LPFC_DISC_AUTH) {
10558 rjt_err = LSRJT_UNABLE_TPC;
10559 rjt_exp = LSEXP_NOTHING_MORE;
10562 lpfc_disc_state_machine(vport, ndlp, elsiocb,
10563 NLP_EVT_RCV_PDISC);
10565 case ELS_CMD_FARPR:
10566 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10567 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
10568 did, vport->port_state, ndlp->nlp_flag);
10570 phba->fc_stat.elsRcvFARPR++;
10571 lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
10574 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10575 "RCV FARP: did:x%x/ste:x%x flg:x%x",
10576 did, vport->port_state, ndlp->nlp_flag);
10578 phba->fc_stat.elsRcvFARP++;
10579 lpfc_els_rcv_farp(vport, elsiocb, ndlp);
10582 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10583 "RCV FAN: did:x%x/ste:x%x flg:x%x",
10584 did, vport->port_state, ndlp->nlp_flag);
10586 phba->fc_stat.elsRcvFAN++;
10587 lpfc_els_rcv_fan(vport, elsiocb, ndlp);
10590 case ELS_CMD_NVMEPRLI:
10591 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10592 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
10593 did, vport->port_state, ndlp->nlp_flag);
10595 phba->fc_stat.elsRcvPRLI++;
10596 if ((vport->port_state < LPFC_DISC_AUTH) &&
10597 (vport->fc_flag & FC_FABRIC)) {
10598 rjt_err = LSRJT_UNABLE_TPC;
10599 rjt_exp = LSEXP_NOTHING_MORE;
10602 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
10605 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10606 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
10607 did, vport->port_state, ndlp->nlp_flag);
10609 phba->fc_stat.elsRcvLIRR++;
10610 lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
10612 lpfc_disc_state_machine(vport, ndlp, NULL,
10613 NLP_EVT_DEVICE_RM);
10616 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10617 "RCV RLS: did:x%x/ste:x%x flg:x%x",
10618 did, vport->port_state, ndlp->nlp_flag);
10620 phba->fc_stat.elsRcvRLS++;
10621 lpfc_els_rcv_rls(vport, elsiocb, ndlp);
10623 lpfc_disc_state_machine(vport, ndlp, NULL,
10624 NLP_EVT_DEVICE_RM);
10627 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10628 "RCV RPL: did:x%x/ste:x%x flg:x%x",
10629 did, vport->port_state, ndlp->nlp_flag);
10631 phba->fc_stat.elsRcvRPL++;
10632 lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
10634 lpfc_disc_state_machine(vport, ndlp, NULL,
10635 NLP_EVT_DEVICE_RM);
10638 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10639 "RCV RNID: did:x%x/ste:x%x flg:x%x",
10640 did, vport->port_state, ndlp->nlp_flag);
10642 phba->fc_stat.elsRcvRNID++;
10643 lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
10645 lpfc_disc_state_machine(vport, ndlp, NULL,
10646 NLP_EVT_DEVICE_RM);
10649 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10650 "RCV RTV: did:x%x/ste:x%x flg:x%x",
10651 did, vport->port_state, ndlp->nlp_flag);
10652 phba->fc_stat.elsRcvRTV++;
10653 lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
10655 lpfc_disc_state_machine(vport, ndlp, NULL,
10656 NLP_EVT_DEVICE_RM);
10659 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10660 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
10661 did, vport->port_state, ndlp->nlp_flag);
10663 phba->fc_stat.elsRcvRRQ++;
10664 lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
10666 lpfc_disc_state_machine(vport, ndlp, NULL,
10667 NLP_EVT_DEVICE_RM);
10670 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10671 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
10672 did, vport->port_state, ndlp->nlp_flag);
10674 phba->fc_stat.elsRcvECHO++;
10675 lpfc_els_rcv_echo(vport, elsiocb, ndlp);
10677 lpfc_disc_state_machine(vport, ndlp, NULL,
10678 NLP_EVT_DEVICE_RM);
10681 /* receive this due to exchange closed */
10682 rjt_err = LSRJT_UNABLE_TPC;
10683 rjt_exp = LSEXP_INVALID_OX_RX;
10686 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10687 "RCV FPIN: did:x%x/ste:x%x flg:x%x",
10688 did, vport->port_state, ndlp->nlp_flag);
10690 lpfc_els_rcv_fpin(vport, (struct fc_els_fpin *)payload,
10693 /* There are no replies, so no rjt codes */
10696 lpfc_els_rcv_edc(vport, elsiocb, ndlp);
10699 phba->fc_stat.elsRcvRDF++;
10700 /* Accept RDF only from fabric controller */
10701 if (did != Fabric_Cntl_DID) {
10702 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
10703 "1115 Received RDF from invalid DID "
10705 rjt_err = LSRJT_PROTOCOL_ERR;
10706 rjt_exp = LSEXP_NOTHING_MORE;
10710 lpfc_els_rcv_rdf(vport, elsiocb, ndlp);
10713 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
10714 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
10715 cmd, did, vport->port_state);
10717 /* Unsupported ELS command, reject */
10718 rjt_err = LSRJT_CMD_UNSUPPORTED;
10719 rjt_exp = LSEXP_NOTHING_MORE;
10721 /* Unknown ELS command <elsCmd> received from NPORT <did> */
10722 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
10723 "0115 Unknown ELS command x%x "
10724 "received from NPORT x%x\n", cmd, did);
10726 lpfc_disc_state_machine(vport, ndlp, NULL,
10727 NLP_EVT_DEVICE_RM);
10732 /* check if need to LS_RJT received ELS cmd */
10734 memset(&stat, 0, sizeof(stat));
10735 stat.un.b.lsRjtRsnCode = rjt_err;
10736 stat.un.b.lsRjtRsnCodeExp = rjt_exp;
10737 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
10739 /* Remove the reference from above for new nodes. */
10741 lpfc_disc_state_machine(vport, ndlp, NULL,
10742 NLP_EVT_DEVICE_RM);
10745 /* Release the reference on this elsiocb, not the ndlp. */
10746 lpfc_nlp_put(elsiocb->ndlp);
10747 elsiocb->ndlp = NULL;
10749 /* Special case. Driver received an unsolicited command that
10750 * unsupportable given the driver's current state. Reset the
10751 * link and start over.
10754 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10757 lpfc_linkdown(phba);
10758 lpfc_init_link(phba, mbox,
10759 phba->cfg_topology,
10760 phba->cfg_link_speed);
10761 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
10762 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10763 mbox->vport = vport;
10764 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
10766 mempool_free(mbox, phba->mbox_mem_pool);
10772 if (vport && !(vport->load_flag & FC_UNLOADING))
10773 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
10774 "0111 Dropping received ELS cmd "
10775 "Data: x%x x%x x%x x%x\n",
10776 cmd, status, get_job_word4(phba, elsiocb), did);
10778 phba->fc_stat.elsRcvDrop++;
10782 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
10783 * @phba: pointer to lpfc hba data structure.
10784 * @pring: pointer to a SLI ring.
10785 * @elsiocb: pointer to lpfc els iocb data structure.
10787 * This routine is used to process an unsolicited event received from a SLI
10788 * (Service Level Interface) ring. The actual processing of the data buffer
10789 * associated with the unsolicited event is done by invoking the routine
10790 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
10791 * SLI ring on which the unsolicited event was received.
10794 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10795 struct lpfc_iocbq *elsiocb)
10797 struct lpfc_vport *vport = elsiocb->vport;
10798 u32 ulp_command, status, parameter, bde_count = 0;
10800 struct lpfc_wcqe_complete *wcqe_cmpl = NULL;
10801 struct lpfc_dmabuf *bdeBuf1 = elsiocb->cmd_dmabuf;
10802 struct lpfc_dmabuf *bdeBuf2 = elsiocb->bpl_dmabuf;
10805 elsiocb->cmd_dmabuf = NULL;
10806 elsiocb->rsp_dmabuf = NULL;
10807 elsiocb->bpl_dmabuf = NULL;
10809 wcqe_cmpl = &elsiocb->wcqe_cmpl;
10810 ulp_command = get_job_cmnd(phba, elsiocb);
10811 status = get_job_ulpstatus(phba, elsiocb);
10812 parameter = get_job_word4(phba, elsiocb);
10813 if (phba->sli_rev == LPFC_SLI_REV4)
10814 bde_count = wcqe_cmpl->word3;
10816 bde_count = elsiocb->iocb.ulpBdeCount;
10818 if (status == IOSTAT_NEED_BUFFER) {
10819 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
10820 } else if (status == IOSTAT_LOCAL_REJECT &&
10821 (parameter & IOERR_PARAM_MASK) ==
10822 IOERR_RCV_BUFFER_WAITING) {
10823 phba->fc_stat.NoRcvBuf++;
10824 /* Not enough posted buffers; Try posting more buffers */
10825 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
10826 lpfc_sli3_post_buffer(phba, pring, 0);
10830 if (phba->sli_rev == LPFC_SLI_REV3) {
10831 icmd = &elsiocb->iocb;
10832 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
10833 (ulp_command == CMD_IOCB_RCV_ELS64_CX ||
10834 ulp_command == CMD_IOCB_RCV_SEQ64_CX)) {
10835 if (icmd->unsli3.rcvsli3.vpi == 0xffff)
10836 vport = phba->pport;
10838 vport = lpfc_find_vport_by_vpid(phba,
10839 icmd->unsli3.rcvsli3.vpi);
10843 /* If there are no BDEs associated
10844 * with this IOCB, there is nothing to do.
10846 if (bde_count == 0)
10849 /* Account for SLI2 or SLI3 and later unsolicited buffering */
10850 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
10851 elsiocb->cmd_dmabuf = bdeBuf1;
10852 if (bde_count == 2)
10853 elsiocb->bpl_dmabuf = bdeBuf2;
10855 icmd = &elsiocb->iocb;
10856 paddr = getPaddr(icmd->un.cont64[0].addrHigh,
10857 icmd->un.cont64[0].addrLow);
10858 elsiocb->cmd_dmabuf = lpfc_sli_ringpostbuf_get(phba, pring,
10860 if (bde_count == 2) {
10861 paddr = getPaddr(icmd->un.cont64[1].addrHigh,
10862 icmd->un.cont64[1].addrLow);
10863 elsiocb->bpl_dmabuf = lpfc_sli_ringpostbuf_get(phba,
10869 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
10871 * The different unsolicited event handlers would tell us
10872 * if they are done with "mp" by setting cmd_dmabuf to NULL.
10874 if (elsiocb->cmd_dmabuf) {
10875 lpfc_in_buf_free(phba, elsiocb->cmd_dmabuf);
10876 elsiocb->cmd_dmabuf = NULL;
10879 if (elsiocb->bpl_dmabuf) {
10880 lpfc_in_buf_free(phba, elsiocb->bpl_dmabuf);
10881 elsiocb->bpl_dmabuf = NULL;
10887 lpfc_start_fdmi(struct lpfc_vport *vport)
10889 struct lpfc_nodelist *ndlp;
10891 /* If this is the first time, allocate an ndlp and initialize
10892 * it. Otherwise, make sure the node is enabled and then do the
10895 ndlp = lpfc_findnode_did(vport, FDMI_DID);
10897 ndlp = lpfc_nlp_init(vport, FDMI_DID);
10899 ndlp->nlp_type |= NLP_FABRIC;
10905 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
10906 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
10910 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
10911 * @phba: pointer to lpfc hba data structure.
10912 * @vport: pointer to a virtual N_Port data structure.
10914 * This routine issues a Port Login (PLOGI) to the Name Server with
10915 * State Change Request (SCR) for a @vport. This routine will create an
10916 * ndlp for the Name Server associated to the @vport if such node does
10917 * not already exist. The PLOGI to Name Server is issued by invoking the
10918 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
10919 * (FDMI) is configured to the @vport, a FDMI node will be created and
10920 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
10923 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
10925 struct lpfc_nodelist *ndlp;
10926 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
10929 * If lpfc_delay_discovery parameter is set and the clean address
10930 * bit is cleared and fc fabric parameters chenged, delay FC NPort
10933 spin_lock_irq(shost->host_lock);
10934 if (vport->fc_flag & FC_DISC_DELAYED) {
10935 spin_unlock_irq(shost->host_lock);
10936 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
10937 "3334 Delay fc port discovery for %d secs\n",
10939 mod_timer(&vport->delayed_disc_tmo,
10940 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
10943 spin_unlock_irq(shost->host_lock);
10945 ndlp = lpfc_findnode_did(vport, NameServer_DID);
10947 ndlp = lpfc_nlp_init(vport, NameServer_DID);
10949 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
10950 lpfc_disc_start(vport);
10953 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
10954 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
10955 "0251 NameServer login: no memory\n");
10960 ndlp->nlp_type |= NLP_FABRIC;
10962 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
10964 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
10965 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
10966 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
10967 "0252 Cannot issue NameServer login\n");
10971 if ((phba->cfg_enable_SmartSAN ||
10972 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) &&
10973 (vport->load_flag & FC_ALLOW_FDMI))
10974 lpfc_start_fdmi(vport);
10978 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
10979 * @phba: pointer to lpfc hba data structure.
10980 * @pmb: pointer to the driver internal queue element for mailbox command.
10982 * This routine is the completion callback function to register new vport
10983 * mailbox command. If the new vport mailbox command completes successfully,
10984 * the fabric registration login shall be performed on physical port (the
10985 * new vport created is actually a physical port, with VPI 0) or the port
10986 * login to Name Server for State Change Request (SCR) will be performed
10987 * on virtual port (real virtual port, with VPI greater than 0).
10990 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
10992 struct lpfc_vport *vport = pmb->vport;
10993 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
10994 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp;
10995 MAILBOX_t *mb = &pmb->u.mb;
10998 spin_lock_irq(shost->host_lock);
10999 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
11000 spin_unlock_irq(shost->host_lock);
11002 if (mb->mbxStatus) {
11003 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
11004 "0915 Register VPI failed : Status: x%x"
11005 " upd bit: x%x \n", mb->mbxStatus,
11006 mb->un.varRegVpi.upd);
11007 if (phba->sli_rev == LPFC_SLI_REV4 &&
11008 mb->un.varRegVpi.upd)
11009 goto mbox_err_exit ;
11011 switch (mb->mbxStatus) {
11012 case 0x11: /* unsupported feature */
11013 case 0x9603: /* max_vpi exceeded */
11014 case 0x9602: /* Link event since CLEAR_LA */
11015 /* giving up on vport registration */
11016 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
11017 spin_lock_irq(shost->host_lock);
11018 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
11019 spin_unlock_irq(shost->host_lock);
11020 lpfc_can_disctmo(vport);
11022 /* If reg_vpi fail with invalid VPI status, re-init VPI */
11024 spin_lock_irq(shost->host_lock);
11025 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
11026 spin_unlock_irq(shost->host_lock);
11027 lpfc_init_vpi(phba, pmb, vport->vpi);
11028 pmb->vport = vport;
11029 pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
11030 rc = lpfc_sli_issue_mbox(phba, pmb,
11032 if (rc == MBX_NOT_FINISHED) {
11033 lpfc_printf_vlog(vport, KERN_ERR,
11035 "2732 Failed to issue INIT_VPI"
11036 " mailbox command\n");
11038 lpfc_nlp_put(ndlp);
11043 /* Try to recover from this error */
11044 if (phba->sli_rev == LPFC_SLI_REV4)
11045 lpfc_sli4_unreg_all_rpis(vport);
11046 lpfc_mbx_unreg_vpi(vport);
11047 spin_lock_irq(shost->host_lock);
11048 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
11049 spin_unlock_irq(shost->host_lock);
11050 if (mb->mbxStatus == MBX_NOT_FINISHED)
11052 if ((vport->port_type == LPFC_PHYSICAL_PORT) &&
11053 !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) {
11054 if (phba->sli_rev == LPFC_SLI_REV4)
11055 lpfc_issue_init_vfi(vport);
11057 lpfc_initial_flogi(vport);
11059 lpfc_initial_fdisc(vport);
11064 spin_lock_irq(shost->host_lock);
11065 vport->vpi_state |= LPFC_VPI_REGISTERED;
11066 spin_unlock_irq(shost->host_lock);
11067 if (vport == phba->pport) {
11068 if (phba->sli_rev < LPFC_SLI_REV4)
11069 lpfc_issue_fabric_reglogin(vport);
11072 * If the physical port is instantiated using
11073 * FDISC, do not start vport discovery.
11075 if (vport->port_state != LPFC_FDISC)
11076 lpfc_start_fdiscs(phba);
11077 lpfc_do_scr_ns_plogi(phba, vport);
11080 lpfc_do_scr_ns_plogi(phba, vport);
11084 /* Now, we decrement the ndlp reference count held for this
11085 * callback function
11087 lpfc_nlp_put(ndlp);
11089 mempool_free(pmb, phba->mbox_mem_pool);
11094 * lpfc_register_new_vport - Register a new vport with a HBA
11095 * @phba: pointer to lpfc hba data structure.
11096 * @vport: pointer to a host virtual N_Port data structure.
11097 * @ndlp: pointer to a node-list data structure.
11099 * This routine registers the @vport as a new virtual port with a HBA.
11100 * It is done through a registering vpi mailbox command.
11103 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
11104 struct lpfc_nodelist *ndlp)
11106 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
11107 LPFC_MBOXQ_t *mbox;
11109 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11111 lpfc_reg_vpi(vport, mbox);
11112 mbox->vport = vport;
11113 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
11114 if (!mbox->ctx_ndlp) {
11115 mempool_free(mbox, phba->mbox_mem_pool);
11116 goto mbox_err_exit;
11119 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
11120 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
11121 == MBX_NOT_FINISHED) {
11122 /* mailbox command not success, decrement ndlp
11123 * reference count for this command
11125 lpfc_nlp_put(ndlp);
11126 mempool_free(mbox, phba->mbox_mem_pool);
11128 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
11129 "0253 Register VPI: Can't send mbox\n");
11130 goto mbox_err_exit;
11133 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
11134 "0254 Register VPI: no memory\n");
11135 goto mbox_err_exit;
11140 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
11141 spin_lock_irq(shost->host_lock);
11142 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
11143 spin_unlock_irq(shost->host_lock);
11148 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
11149 * @phba: pointer to lpfc hba data structure.
11151 * This routine cancels the retry delay timers to all the vports.
11154 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
11156 struct lpfc_vport **vports;
11157 struct lpfc_nodelist *ndlp;
11158 uint32_t link_state;
11161 /* Treat this failure as linkdown for all vports */
11162 link_state = phba->link_state;
11163 lpfc_linkdown(phba);
11164 phba->link_state = link_state;
11166 vports = lpfc_create_vport_work_array(phba);
11169 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11170 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
11172 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
11173 lpfc_els_flush_cmd(vports[i]);
11175 lpfc_destroy_vport_work_array(phba, vports);
11180 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
11181 * @phba: pointer to lpfc hba data structure.
11183 * This routine abort all pending discovery commands and
11184 * start a timer to retry FLOGI for the physical port
11188 lpfc_retry_pport_discovery(struct lpfc_hba *phba)
11190 struct lpfc_nodelist *ndlp;
11192 /* Cancel the all vports retry delay retry timers */
11193 lpfc_cancel_all_vport_retry_delay_timer(phba);
11195 /* If fabric require FLOGI, then re-instantiate physical login */
11196 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
11200 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
11201 spin_lock_irq(&ndlp->lock);
11202 ndlp->nlp_flag |= NLP_DELAY_TMO;
11203 spin_unlock_irq(&ndlp->lock);
11204 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
11205 phba->pport->port_state = LPFC_FLOGI;
11210 * lpfc_fabric_login_reqd - Check if FLOGI required.
11211 * @phba: pointer to lpfc hba data structure.
11212 * @cmdiocb: pointer to FDISC command iocb.
11213 * @rspiocb: pointer to FDISC response iocb.
11215 * This routine checks if a FLOGI is reguired for FDISC
11219 lpfc_fabric_login_reqd(struct lpfc_hba *phba,
11220 struct lpfc_iocbq *cmdiocb,
11221 struct lpfc_iocbq *rspiocb)
11223 u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
11224 u32 ulp_word4 = get_job_word4(phba, rspiocb);
11226 if (ulp_status != IOSTAT_FABRIC_RJT ||
11227 ulp_word4 != RJT_LOGIN_REQUIRED)
11234 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
11235 * @phba: pointer to lpfc hba data structure.
11236 * @cmdiocb: pointer to lpfc command iocb data structure.
11237 * @rspiocb: pointer to lpfc response iocb data structure.
11239 * This routine is the completion callback function to a Fabric Discover
11240 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
11241 * single threaded, each FDISC completion callback function will reset
11242 * the discovery timer for all vports such that the timers will not get
11243 * unnecessary timeout. The function checks the FDISC IOCB status. If error
11244 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
11245 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
11246 * assigned to the vport has been changed with the completion of the FDISC
11247 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
11248 * are unregistered from the HBA, and then the lpfc_register_new_vport()
11249 * routine is invoked to register new vport with the HBA. Otherwise, the
11250 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
11251 * Server for State Change Request (SCR).
11254 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11255 struct lpfc_iocbq *rspiocb)
11257 struct lpfc_vport *vport = cmdiocb->vport;
11258 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
11259 struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
11260 struct lpfc_nodelist *np;
11261 struct lpfc_nodelist *next_np;
11262 struct lpfc_iocbq *piocb;
11263 struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp;
11264 struct serv_parm *sp;
11265 uint8_t fabric_param_changed;
11266 u32 ulp_status, ulp_word4;
11268 ulp_status = get_job_ulpstatus(phba, rspiocb);
11269 ulp_word4 = get_job_word4(phba, rspiocb);
11271 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
11272 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
11273 ulp_status, ulp_word4,
11274 vport->fc_prevDID);
11275 /* Since all FDISCs are being single threaded, we
11276 * must reset the discovery timer for ALL vports
11277 * waiting to send FDISC when one completes.
11279 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
11280 lpfc_set_disctmo(piocb->vport);
11283 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
11284 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
11285 ulp_status, ulp_word4, vport->fc_prevDID);
11289 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
11290 lpfc_retry_pport_discovery(phba);
11294 /* Check for retry */
11295 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
11298 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
11299 "0126 FDISC failed. (x%x/x%x)\n",
11300 ulp_status, ulp_word4);
11304 lpfc_check_nlp_post_devloss(vport, ndlp);
11306 spin_lock_irq(shost->host_lock);
11307 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
11308 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
11309 vport->fc_flag |= FC_FABRIC;
11310 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
11311 vport->fc_flag |= FC_PUBLIC_LOOP;
11312 spin_unlock_irq(shost->host_lock);
11314 vport->fc_myDID = ulp_word4 & Mask_DID;
11315 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
11316 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
11319 sp = prsp->virt + sizeof(uint32_t);
11320 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
11321 memcpy(&vport->fabric_portname, &sp->portName,
11322 sizeof(struct lpfc_name));
11323 memcpy(&vport->fabric_nodename, &sp->nodeName,
11324 sizeof(struct lpfc_name));
11325 if (fabric_param_changed &&
11326 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
11327 /* If our NportID changed, we need to ensure all
11328 * remaining NPORTs get unreg_login'ed so we can
11331 list_for_each_entry_safe(np, next_np,
11332 &vport->fc_nodes, nlp_listp) {
11333 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
11334 !(np->nlp_flag & NLP_NPR_ADISC))
11336 spin_lock_irq(&ndlp->lock);
11337 np->nlp_flag &= ~NLP_NPR_ADISC;
11338 spin_unlock_irq(&ndlp->lock);
11339 lpfc_unreg_rpi(vport, np);
11341 lpfc_cleanup_pending_mbox(vport);
11343 if (phba->sli_rev == LPFC_SLI_REV4)
11344 lpfc_sli4_unreg_all_rpis(vport);
11346 lpfc_mbx_unreg_vpi(vport);
11347 spin_lock_irq(shost->host_lock);
11348 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
11349 if (phba->sli_rev == LPFC_SLI_REV4)
11350 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
11352 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
11353 spin_unlock_irq(shost->host_lock);
11354 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
11355 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
11357 * Driver needs to re-reg VPI in order for f/w
11358 * to update the MAC address.
11360 lpfc_register_new_vport(phba, vport, ndlp);
11361 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
11365 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
11366 lpfc_issue_init_vpi(vport);
11367 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
11368 lpfc_register_new_vport(phba, vport, ndlp);
11370 lpfc_do_scr_ns_plogi(phba, vport);
11372 /* The FDISC completed successfully. Move the fabric ndlp to
11373 * UNMAPPED state and register with the transport.
11375 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
11379 if (vport->fc_vport &&
11380 (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS))
11381 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
11382 /* Cancel discovery timer */
11383 lpfc_can_disctmo(vport);
11385 lpfc_els_free_iocb(phba, cmdiocb);
11386 lpfc_nlp_put(ndlp);
11390 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
11391 * @vport: pointer to a virtual N_Port data structure.
11392 * @ndlp: pointer to a node-list data structure.
11393 * @retry: number of retries to the command IOCB.
11395 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
11396 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
11397 * routine to issue the IOCB, which makes sure only one outstanding fabric
11398 * IOCB will be sent off HBA at any given time.
11400 * Note that the ndlp reference count will be incremented by 1 for holding the
11401 * ndlp and the reference to ndlp will be stored into the ndlp field of
11402 * the IOCB for the completion callback function to the FDISC ELS command.
11405 * 0 - Successfully issued fdisc iocb command
11406 * 1 - Failed to issue fdisc iocb command
11409 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
11412 struct lpfc_hba *phba = vport->phba;
11414 union lpfc_wqe128 *wqe = NULL;
11415 struct lpfc_iocbq *elsiocb;
11416 struct serv_parm *sp;
11419 int did = ndlp->nlp_DID;
11422 vport->port_state = LPFC_FDISC;
11423 vport->fc_myDID = 0;
11424 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
11425 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
11428 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
11429 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
11430 "0255 Issue FDISC: no IOCB\n");
11434 if (phba->sli_rev == LPFC_SLI_REV4) {
11435 wqe = &elsiocb->wqe;
11436 bf_set(els_req64_sid, &wqe->els_req, 0);
11437 bf_set(els_req64_sp, &wqe->els_req, 1);
11439 icmd = &elsiocb->iocb;
11440 icmd->un.elsreq64.myID = 0;
11441 icmd->un.elsreq64.fl = 1;
11446 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
11447 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
11448 pcmd += sizeof(uint32_t); /* CSP Word 1 */
11449 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
11450 sp = (struct serv_parm *) pcmd;
11451 /* Setup CSPs accordingly for Fabric */
11452 sp->cmn.e_d_tov = 0;
11453 sp->cmn.w2.r_a_tov = 0;
11454 sp->cmn.virtual_fabric_support = 0;
11455 sp->cls1.classValid = 0;
11456 sp->cls2.seqDelivery = 1;
11457 sp->cls3.seqDelivery = 1;
11459 pcmd += sizeof(uint32_t); /* CSP Word 2 */
11460 pcmd += sizeof(uint32_t); /* CSP Word 3 */
11461 pcmd += sizeof(uint32_t); /* CSP Word 4 */
11462 pcmd += sizeof(uint32_t); /* Port Name */
11463 memcpy(pcmd, &vport->fc_portname, 8);
11464 pcmd += sizeof(uint32_t); /* Node Name */
11465 pcmd += sizeof(uint32_t); /* Node Name */
11466 memcpy(pcmd, &vport->fc_nodename, 8);
11467 sp->cmn.valid_vendor_ver_level = 0;
11468 memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
11469 lpfc_set_disctmo(vport);
11471 phba->fc_stat.elsXmitFDISC++;
11472 elsiocb->cmd_cmpl = lpfc_cmpl_els_fdisc;
11474 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
11475 "Issue FDISC: did:x%x",
11478 elsiocb->ndlp = lpfc_nlp_get(ndlp);
11479 if (!elsiocb->ndlp)
11482 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
11483 if (rc == IOCB_ERROR) {
11484 lpfc_nlp_put(ndlp);
11488 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
11492 lpfc_els_free_iocb(phba, elsiocb);
11493 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
11494 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
11495 "0256 Issue FDISC: Cannot send IOCB\n");
11500 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
11501 * @phba: pointer to lpfc hba data structure.
11502 * @cmdiocb: pointer to lpfc command iocb data structure.
11503 * @rspiocb: pointer to lpfc response iocb data structure.
11505 * This routine is the completion callback function to the issuing of a LOGO
11506 * ELS command off a vport. It frees the command IOCB and then decrement the
11507 * reference count held on ndlp for this completion function, indicating that
11508 * the reference to the ndlp is no long needed. Note that the
11509 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
11510 * callback function and an additional explicit ndlp reference decrementation
11511 * will trigger the actual release of the ndlp.
11514 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11515 struct lpfc_iocbq *rspiocb)
11517 struct lpfc_vport *vport = cmdiocb->vport;
11519 struct lpfc_nodelist *ndlp;
11520 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
11521 u32 ulp_status, ulp_word4, did, tmo;
11523 ndlp = cmdiocb->ndlp;
11525 ulp_status = get_job_ulpstatus(phba, rspiocb);
11526 ulp_word4 = get_job_word4(phba, rspiocb);
11528 if (phba->sli_rev == LPFC_SLI_REV4) {
11529 did = get_job_els_rsp64_did(phba, cmdiocb);
11530 tmo = get_wqe_tmo(cmdiocb);
11532 irsp = &rspiocb->iocb;
11533 did = get_job_els_rsp64_did(phba, rspiocb);
11534 tmo = irsp->ulpTimeout;
11537 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
11538 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
11539 ulp_status, ulp_word4, did);
11541 /* NPIV LOGO completes to NPort <nlp_DID> */
11542 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
11543 "2928 NPIV LOGO completes to NPort x%x "
11544 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
11545 ndlp->nlp_DID, ulp_status, ulp_word4,
11546 tmo, vport->num_disc_nodes,
11547 kref_read(&ndlp->kref), ndlp->nlp_flag,
11548 ndlp->fc4_xpt_flags);
11550 if (ulp_status == IOSTAT_SUCCESS) {
11551 spin_lock_irq(shost->host_lock);
11552 vport->fc_flag &= ~FC_NDISC_ACTIVE;
11553 vport->fc_flag &= ~FC_FABRIC;
11554 spin_unlock_irq(shost->host_lock);
11555 lpfc_can_disctmo(vport);
11558 if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) {
11559 /* Wake up lpfc_vport_delete if waiting...*/
11560 if (ndlp->logo_waitq)
11561 wake_up(ndlp->logo_waitq);
11562 spin_lock_irq(&ndlp->lock);
11563 ndlp->nlp_flag &= ~(NLP_ISSUE_LOGO | NLP_LOGO_SND);
11564 ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO;
11565 spin_unlock_irq(&ndlp->lock);
11568 /* Safe to release resources now. */
11569 lpfc_els_free_iocb(phba, cmdiocb);
11570 lpfc_nlp_put(ndlp);
11574 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
11575 * @vport: pointer to a virtual N_Port data structure.
11576 * @ndlp: pointer to a node-list data structure.
11578 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
11580 * Note that the ndlp reference count will be incremented by 1 for holding the
11581 * ndlp and the reference to ndlp will be stored into the ndlp field of
11582 * the IOCB for the completion callback function to the LOGO ELS command.
11585 * 0 - Successfully issued logo off the @vport
11586 * 1 - Failed to issue logo off the @vport
11589 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
11592 struct lpfc_hba *phba = vport->phba;
11593 struct lpfc_iocbq *elsiocb;
11597 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
11598 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
11603 pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
11604 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
11605 pcmd += sizeof(uint32_t);
11607 /* Fill in LOGO payload */
11608 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
11609 pcmd += sizeof(uint32_t);
11610 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
11612 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
11613 "Issue LOGO npiv did:x%x flg:x%x",
11614 ndlp->nlp_DID, ndlp->nlp_flag, 0);
11616 elsiocb->cmd_cmpl = lpfc_cmpl_els_npiv_logo;
11617 spin_lock_irq(&ndlp->lock);
11618 ndlp->nlp_flag |= NLP_LOGO_SND;
11619 spin_unlock_irq(&ndlp->lock);
11620 elsiocb->ndlp = lpfc_nlp_get(ndlp);
11621 if (!elsiocb->ndlp) {
11622 lpfc_els_free_iocb(phba, elsiocb);
11626 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
11627 if (rc == IOCB_ERROR) {
11628 lpfc_els_free_iocb(phba, elsiocb);
11629 lpfc_nlp_put(ndlp);
11635 spin_lock_irq(&ndlp->lock);
11636 ndlp->nlp_flag &= ~NLP_LOGO_SND;
11637 spin_unlock_irq(&ndlp->lock);
11642 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
11643 * @t: timer context used to obtain the lpfc hba.
11645 * This routine is invoked by the fabric iocb block timer after
11646 * timeout. It posts the fabric iocb block timeout event by setting the
11647 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
11648 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
11649 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
11650 * posted event WORKER_FABRIC_BLOCK_TMO.
11653 lpfc_fabric_block_timeout(struct timer_list *t)
11655 struct lpfc_hba *phba = from_timer(phba, t, fabric_block_timer);
11656 unsigned long iflags;
11657 uint32_t tmo_posted;
11659 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11660 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
11662 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
11663 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11666 lpfc_worker_wake_up(phba);
11671 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
11672 * @phba: pointer to lpfc hba data structure.
11674 * This routine issues one fabric iocb from the driver internal list to
11675 * the HBA. It first checks whether it's ready to issue one fabric iocb to
11676 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
11677 * remove one pending fabric iocb from the driver internal list and invokes
11678 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
11681 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
11683 struct lpfc_iocbq *iocb;
11684 unsigned long iflags;
11689 spin_lock_irqsave(&phba->hbalock, iflags);
11690 /* Post any pending iocb to the SLI layer */
11691 if (atomic_read(&phba->fabric_iocb_count) == 0) {
11692 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
11695 /* Increment fabric iocb count to hold the position */
11696 atomic_inc(&phba->fabric_iocb_count);
11698 spin_unlock_irqrestore(&phba->hbalock, iflags);
11700 iocb->fabric_cmd_cmpl = iocb->cmd_cmpl;
11701 iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb;
11702 iocb->cmd_flag |= LPFC_IO_FABRIC;
11704 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
11705 "Fabric sched1: ste:x%x",
11706 iocb->vport->port_state, 0, 0);
11708 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
11710 if (ret == IOCB_ERROR) {
11711 iocb->cmd_cmpl = iocb->fabric_cmd_cmpl;
11712 iocb->fabric_cmd_cmpl = NULL;
11713 iocb->cmd_flag &= ~LPFC_IO_FABRIC;
11714 set_job_ulpstatus(iocb, IOSTAT_LOCAL_REJECT);
11715 iocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED;
11716 iocb->cmd_cmpl(phba, iocb, iocb);
11718 atomic_dec(&phba->fabric_iocb_count);
11725 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
11726 * @phba: pointer to lpfc hba data structure.
11728 * This routine unblocks the issuing fabric iocb command. The function
11729 * will clear the fabric iocb block bit and then invoke the routine
11730 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
11731 * from the driver internal fabric iocb list.
11734 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
11736 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
11738 lpfc_resume_fabric_iocbs(phba);
11743 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
11744 * @phba: pointer to lpfc hba data structure.
11746 * This routine blocks the issuing fabric iocb for a specified amount of
11747 * time (currently 100 ms). This is done by set the fabric iocb block bit
11748 * and set up a timeout timer for 100ms. When the block bit is set, no more
11749 * fabric iocb will be issued out of the HBA.
11752 lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
11756 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
11757 /* Start a timer to unblock fabric iocbs after 100ms */
11759 mod_timer(&phba->fabric_block_timer,
11760 jiffies + msecs_to_jiffies(100));
11766 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
11767 * @phba: pointer to lpfc hba data structure.
11768 * @cmdiocb: pointer to lpfc command iocb data structure.
11769 * @rspiocb: pointer to lpfc response iocb data structure.
11771 * This routine is the callback function that is put to the fabric iocb's
11772 * callback function pointer (iocb->cmd_cmpl). The original iocb's callback
11773 * function pointer has been stored in iocb->fabric_cmd_cmpl. This callback
11774 * function first restores and invokes the original iocb's callback function
11775 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
11776 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
11779 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11780 struct lpfc_iocbq *rspiocb)
11782 struct ls_rjt stat;
11783 u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
11784 u32 ulp_word4 = get_job_word4(phba, rspiocb);
11786 WARN_ON((cmdiocb->cmd_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC);
11788 switch (ulp_status) {
11789 case IOSTAT_NPORT_RJT:
11790 case IOSTAT_FABRIC_RJT:
11791 if (ulp_word4 & RJT_UNAVAIL_TEMP)
11792 lpfc_block_fabric_iocbs(phba);
11795 case IOSTAT_NPORT_BSY:
11796 case IOSTAT_FABRIC_BSY:
11797 lpfc_block_fabric_iocbs(phba);
11800 case IOSTAT_LS_RJT:
11801 stat.un.ls_rjt_error_be =
11802 cpu_to_be32(ulp_word4);
11803 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
11804 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
11805 lpfc_block_fabric_iocbs(phba);
11809 BUG_ON(atomic_read(&phba->fabric_iocb_count) == 0);
11811 cmdiocb->cmd_cmpl = cmdiocb->fabric_cmd_cmpl;
11812 cmdiocb->fabric_cmd_cmpl = NULL;
11813 cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC;
11814 cmdiocb->cmd_cmpl(phba, cmdiocb, rspiocb);
11816 atomic_dec(&phba->fabric_iocb_count);
11817 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
11818 /* Post any pending iocbs to HBA */
11819 lpfc_resume_fabric_iocbs(phba);
11824 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
11825 * @phba: pointer to lpfc hba data structure.
11826 * @iocb: pointer to lpfc command iocb data structure.
11828 * This routine is used as the top-level API for issuing a fabric iocb command
11829 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
11830 * function makes sure that only one fabric bound iocb will be outstanding at
11831 * any given time. As such, this function will first check to see whether there
11832 * is already an outstanding fabric iocb on the wire. If so, it will put the
11833 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
11834 * issued later. Otherwise, it will issue the iocb on the wire and update the
11835 * fabric iocb count it indicate that there is one fabric iocb on the wire.
11837 * Note, this implementation has a potential sending out fabric IOCBs out of
11838 * order. The problem is caused by the construction of the "ready" boolen does
11839 * not include the condition that the internal fabric IOCB list is empty. As
11840 * such, it is possible a fabric IOCB issued by this routine might be "jump"
11841 * ahead of the fabric IOCBs in the internal list.
11844 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
11845 * IOCB_ERROR - failed to issue fabric iocb
11848 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
11850 unsigned long iflags;
11854 BUG_ON(atomic_read(&phba->fabric_iocb_count) > 1);
11856 spin_lock_irqsave(&phba->hbalock, iflags);
11857 ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
11858 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
11861 /* Increment fabric iocb count to hold the position */
11862 atomic_inc(&phba->fabric_iocb_count);
11863 spin_unlock_irqrestore(&phba->hbalock, iflags);
11865 iocb->fabric_cmd_cmpl = iocb->cmd_cmpl;
11866 iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb;
11867 iocb->cmd_flag |= LPFC_IO_FABRIC;
11869 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
11870 "Fabric sched2: ste:x%x",
11871 iocb->vport->port_state, 0, 0);
11873 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
11875 if (ret == IOCB_ERROR) {
11876 iocb->cmd_cmpl = iocb->fabric_cmd_cmpl;
11877 iocb->fabric_cmd_cmpl = NULL;
11878 iocb->cmd_flag &= ~LPFC_IO_FABRIC;
11879 atomic_dec(&phba->fabric_iocb_count);
11882 spin_lock_irqsave(&phba->hbalock, iflags);
11883 list_add_tail(&iocb->list, &phba->fabric_iocb_list);
11884 spin_unlock_irqrestore(&phba->hbalock, iflags);
11885 ret = IOCB_SUCCESS;
11891 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
11892 * @vport: pointer to a virtual N_Port data structure.
11894 * This routine aborts all the IOCBs associated with a @vport from the
11895 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
11896 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
11897 * list, removes each IOCB associated with the @vport off the list, set the
11898 * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function
11899 * associated with the IOCB.
11901 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
11903 LIST_HEAD(completions);
11904 struct lpfc_hba *phba = vport->phba;
11905 struct lpfc_iocbq *tmp_iocb, *piocb;
11907 spin_lock_irq(&phba->hbalock);
11908 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
11911 if (piocb->vport != vport)
11914 list_move_tail(&piocb->list, &completions);
11916 spin_unlock_irq(&phba->hbalock);
11918 /* Cancel all the IOCBs from the completions list */
11919 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
11920 IOERR_SLI_ABORTED);
11924 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
11925 * @ndlp: pointer to a node-list data structure.
11927 * This routine aborts all the IOCBs associated with an @ndlp from the
11928 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
11929 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
11930 * list, removes each IOCB associated with the @ndlp off the list, set the
11931 * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function
11932 * associated with the IOCB.
11934 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
11936 LIST_HEAD(completions);
11937 struct lpfc_hba *phba = ndlp->phba;
11938 struct lpfc_iocbq *tmp_iocb, *piocb;
11939 struct lpfc_sli_ring *pring;
11941 pring = lpfc_phba_elsring(phba);
11943 if (unlikely(!pring))
11946 spin_lock_irq(&phba->hbalock);
11947 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
11949 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
11951 list_move_tail(&piocb->list, &completions);
11954 spin_unlock_irq(&phba->hbalock);
11956 /* Cancel all the IOCBs from the completions list */
11957 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
11958 IOERR_SLI_ABORTED);
11962 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
11963 * @phba: pointer to lpfc hba data structure.
11965 * This routine aborts all the IOCBs currently on the driver internal
11966 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
11967 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
11968 * list, removes IOCBs off the list, set the status field to
11969 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
11972 void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
11974 LIST_HEAD(completions);
11976 spin_lock_irq(&phba->hbalock);
11977 list_splice_init(&phba->fabric_iocb_list, &completions);
11978 spin_unlock_irq(&phba->hbalock);
11980 /* Cancel all the IOCBs from the completions list */
11981 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
11982 IOERR_SLI_ABORTED);
11986 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
11987 * @vport: pointer to lpfc vport data structure.
11989 * This routine is invoked by the vport cleanup for deletions and the cleanup
11990 * for an ndlp on removal.
11993 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
11995 struct lpfc_hba *phba = vport->phba;
11996 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
11997 struct lpfc_nodelist *ndlp = NULL;
11998 unsigned long iflag = 0;
12000 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag);
12001 list_for_each_entry_safe(sglq_entry, sglq_next,
12002 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
12003 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) {
12004 lpfc_nlp_put(sglq_entry->ndlp);
12005 ndlp = sglq_entry->ndlp;
12006 sglq_entry->ndlp = NULL;
12008 /* If the xri on the abts_els_sgl list is for the Fport
12009 * node and the vport is unloading, the xri aborted wcqe
12010 * likely isn't coming back. Just release the sgl.
12012 if ((vport->load_flag & FC_UNLOADING) &&
12013 ndlp->nlp_DID == Fabric_DID) {
12014 list_del(&sglq_entry->list);
12015 sglq_entry->state = SGL_FREED;
12016 list_add_tail(&sglq_entry->list,
12017 &phba->sli4_hba.lpfc_els_sgl_list);
12021 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag);
12026 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
12027 * @phba: pointer to lpfc hba data structure.
12028 * @axri: pointer to the els xri abort wcqe structure.
12030 * This routine is invoked by the worker thread to process a SLI4 slow-path
12034 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
12035 struct sli4_wcqe_xri_aborted *axri)
12037 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
12038 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
12041 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
12042 unsigned long iflag = 0;
12043 struct lpfc_nodelist *ndlp;
12044 struct lpfc_sli_ring *pring;
12046 pring = lpfc_phba_elsring(phba);
12048 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag);
12049 list_for_each_entry_safe(sglq_entry, sglq_next,
12050 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
12051 if (sglq_entry->sli4_xritag == xri) {
12052 list_del(&sglq_entry->list);
12053 ndlp = sglq_entry->ndlp;
12054 sglq_entry->ndlp = NULL;
12055 list_add_tail(&sglq_entry->list,
12056 &phba->sli4_hba.lpfc_els_sgl_list);
12057 sglq_entry->state = SGL_FREED;
12058 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock,
12062 lpfc_set_rrq_active(phba, ndlp,
12063 sglq_entry->sli4_lxritag,
12065 lpfc_nlp_put(ndlp);
12068 /* Check if TXQ queue needs to be serviced */
12069 if (pring && !list_empty(&pring->txq))
12070 lpfc_worker_wake_up(phba);
12074 spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag);
12075 lxri = lpfc_sli4_xri_inrange(phba, xri);
12076 if (lxri == NO_XRI)
12079 spin_lock_irqsave(&phba->hbalock, iflag);
12080 sglq_entry = __lpfc_get_active_sglq(phba, lxri);
12081 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
12082 spin_unlock_irqrestore(&phba->hbalock, iflag);
12085 sglq_entry->state = SGL_XRI_ABORTED;
12086 spin_unlock_irqrestore(&phba->hbalock, iflag);
12090 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
12091 * @vport: pointer to virtual port object.
12092 * @ndlp: nodelist pointer for the impacted node.
12094 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
12095 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
12096 * the driver is required to send a LOGO to the remote node before it
12097 * attempts to recover its login to the remote node.
12100 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
12101 struct lpfc_nodelist *ndlp)
12103 struct Scsi_Host *shost;
12104 struct lpfc_hba *phba;
12105 unsigned long flags = 0;
12107 shost = lpfc_shost_from_vport(vport);
12108 phba = vport->phba;
12109 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
12110 lpfc_printf_log(phba, KERN_INFO,
12111 LOG_SLI, "3093 No rport recovery needed. "
12112 "rport in state 0x%x\n", ndlp->nlp_state);
12115 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12116 "3094 Start rport recovery on shost id 0x%x "
12117 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
12119 shost->host_no, ndlp->nlp_DID,
12120 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
12123 * The rport is not responding. Remove the FCP-2 flag to prevent
12124 * an ADISC in the follow-up recovery code.
12126 spin_lock_irqsave(&ndlp->lock, flags);
12127 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
12128 ndlp->nlp_flag |= NLP_ISSUE_LOGO;
12129 spin_unlock_irqrestore(&ndlp->lock, flags);
12130 lpfc_unreg_rpi(vport, ndlp);
12133 static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport)
12135 bitmap_zero(vport->vmid_priority_range, LPFC_VMID_MAX_PRIORITY_RANGE);
12139 lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max)
12143 if ((min > max) || (max > LPFC_VMID_MAX_PRIORITY_RANGE))
12146 for (i = min; i <= max; i++)
12147 set_bit(i, vport->vmid_priority_range);
12150 static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid)
12152 set_bit(ctcl_vmid, vport->vmid_priority_range);
12155 u32 lpfc_vmid_get_cs_ctl(struct lpfc_vport *vport)
12159 i = find_first_bit(vport->vmid_priority_range,
12160 LPFC_VMID_MAX_PRIORITY_RANGE);
12162 if (i == LPFC_VMID_MAX_PRIORITY_RANGE)
12165 clear_bit(i, vport->vmid_priority_range);
12169 #define MAX_PRIORITY_DESC 255
12172 lpfc_cmpl_els_qfpa(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
12173 struct lpfc_iocbq *rspiocb)
12175 struct lpfc_vport *vport = cmdiocb->vport;
12176 struct priority_range_desc *desc;
12177 struct lpfc_dmabuf *prsp = NULL;
12178 struct lpfc_vmid_priority_range *vmid_range = NULL;
12180 struct lpfc_dmabuf *dmabuf = cmdiocb->cmd_dmabuf;
12181 u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
12182 u32 ulp_word4 = get_job_word4(phba, rspiocb);
12183 u8 *pcmd, max_desc;
12185 struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
12187 prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list);
12192 data = (u32 *)pcmd;
12193 if (data[0] == ELS_CMD_LS_RJT) {
12194 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI,
12195 "3277 QFPA LS_RJT x%x x%x\n",
12200 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
12201 "6529 QFPA failed with status x%x x%x\n",
12202 ulp_status, ulp_word4);
12206 if (!vport->qfpa_res) {
12207 max_desc = FCELSSIZE / sizeof(*vport->qfpa_res);
12208 vport->qfpa_res = kcalloc(max_desc, sizeof(*vport->qfpa_res),
12210 if (!vport->qfpa_res)
12214 len = *((u32 *)(pcmd + 4));
12215 len = be32_to_cpu(len);
12216 memcpy(vport->qfpa_res, pcmd, len + 8);
12217 len = len / LPFC_PRIORITY_RANGE_DESC_SIZE;
12219 desc = (struct priority_range_desc *)(pcmd + 8);
12220 vmid_range = vport->vmid_priority.vmid_range;
12222 vmid_range = kcalloc(MAX_PRIORITY_DESC, sizeof(*vmid_range),
12225 kfree(vport->qfpa_res);
12228 vport->vmid_priority.vmid_range = vmid_range;
12230 vport->vmid_priority.num_descriptors = len;
12232 for (i = 0; i < len; i++, vmid_range++, desc++) {
12233 lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS,
12234 "6539 vmid values low=%d, high=%d, qos=%d, "
12235 "local ve id=%d\n", desc->lo_range,
12236 desc->hi_range, desc->qos_priority,
12237 desc->local_ve_id);
12239 vmid_range->low = desc->lo_range << 1;
12240 if (desc->local_ve_id == QFPA_ODD_ONLY)
12242 if (desc->qos_priority)
12243 vport->vmid_flag |= LPFC_VMID_QOS_ENABLED;
12244 vmid_range->qos = desc->qos_priority;
12246 vmid_range->high = desc->hi_range << 1;
12247 if ((desc->local_ve_id == QFPA_ODD_ONLY) ||
12248 (desc->local_ve_id == QFPA_EVEN_ODD))
12249 vmid_range->high++;
12251 lpfc_init_cs_ctl_bitmap(vport);
12252 for (i = 0; i < vport->vmid_priority.num_descriptors; i++) {
12253 lpfc_vmid_set_cs_ctl_range(vport,
12254 vport->vmid_priority.vmid_range[i].low,
12255 vport->vmid_priority.vmid_range[i].high);
12258 vport->vmid_flag |= LPFC_VMID_QFPA_CMPL;
12260 lpfc_els_free_iocb(phba, cmdiocb);
12261 lpfc_nlp_put(ndlp);
12264 int lpfc_issue_els_qfpa(struct lpfc_vport *vport)
12266 struct lpfc_hba *phba = vport->phba;
12267 struct lpfc_nodelist *ndlp;
12268 struct lpfc_iocbq *elsiocb;
12272 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
12273 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
12276 elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_QFPA_SIZE, 2, ndlp,
12277 ndlp->nlp_DID, ELS_CMD_QFPA);
12281 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
12283 *((u32 *)(pcmd)) = ELS_CMD_QFPA;
12286 elsiocb->cmd_cmpl = lpfc_cmpl_els_qfpa;
12288 elsiocb->ndlp = lpfc_nlp_get(ndlp);
12289 if (!elsiocb->ndlp) {
12290 lpfc_els_free_iocb(vport->phba, elsiocb);
12294 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 2);
12295 if (ret != IOCB_SUCCESS) {
12296 lpfc_els_free_iocb(phba, elsiocb);
12297 lpfc_nlp_put(ndlp);
12300 vport->vmid_flag &= ~LPFC_VMID_QOS_ENABLED;
12305 lpfc_vmid_uvem(struct lpfc_vport *vport,
12306 struct lpfc_vmid *vmid, bool instantiated)
12308 struct lpfc_vem_id_desc *vem_id_desc;
12309 struct lpfc_nodelist *ndlp;
12310 struct lpfc_iocbq *elsiocb;
12311 struct instantiated_ve_desc *inst_desc;
12312 struct lpfc_vmid_context *vmid_context;
12317 ndlp = lpfc_findnode_did(vport, Fabric_DID);
12318 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
12321 vmid_context = kmalloc(sizeof(*vmid_context), GFP_KERNEL);
12324 elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_UVEM_SIZE, 2,
12325 ndlp, Fabric_DID, ELS_CMD_UVEM);
12329 lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS,
12330 "3427 Host vmid %s %d\n",
12331 vmid->host_vmid, instantiated);
12332 vmid_context->vmp = vmid;
12333 vmid_context->nlp = ndlp;
12334 vmid_context->instantiated = instantiated;
12335 elsiocb->vmid_tag.vmid_context = vmid_context;
12336 pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
12338 if (uuid_is_null((uuid_t *)vport->lpfc_vmid_host_uuid))
12339 memcpy(vport->lpfc_vmid_host_uuid, vmid->host_vmid,
12340 LPFC_COMPRESS_VMID_SIZE);
12342 *((u32 *)(pcmd)) = ELS_CMD_UVEM;
12343 len = (u32 *)(pcmd + 4);
12344 *len = cpu_to_be32(LPFC_UVEM_SIZE - 8);
12346 vem_id_desc = (struct lpfc_vem_id_desc *)(pcmd + 8);
12347 vem_id_desc->tag = be32_to_cpu(VEM_ID_DESC_TAG);
12348 vem_id_desc->length = be32_to_cpu(LPFC_UVEM_VEM_ID_DESC_SIZE);
12349 memcpy(vem_id_desc->vem_id, vport->lpfc_vmid_host_uuid,
12350 LPFC_COMPRESS_VMID_SIZE);
12352 inst_desc = (struct instantiated_ve_desc *)(pcmd + 32);
12353 inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG);
12354 inst_desc->length = be32_to_cpu(LPFC_UVEM_VE_MAP_DESC_SIZE);
12355 memcpy(inst_desc->global_vem_id, vmid->host_vmid,
12356 LPFC_COMPRESS_VMID_SIZE);
12358 bf_set(lpfc_instantiated_nport_id, inst_desc, vport->fc_myDID);
12359 bf_set(lpfc_instantiated_local_id, inst_desc,
12360 vmid->un.cs_ctl_vmid);
12361 if (instantiated) {
12362 inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG);
12364 inst_desc->tag = be32_to_cpu(DEINSTANTIATED_VE_DESC_TAG);
12365 lpfc_vmid_put_cs_ctl(vport, vmid->un.cs_ctl_vmid);
12367 inst_desc->word6 = cpu_to_be32(inst_desc->word6);
12369 elsiocb->cmd_cmpl = lpfc_cmpl_els_uvem;
12371 elsiocb->ndlp = lpfc_nlp_get(ndlp);
12372 if (!elsiocb->ndlp) {
12373 lpfc_els_free_iocb(vport->phba, elsiocb);
12377 ret = lpfc_sli_issue_iocb(vport->phba, LPFC_ELS_RING, elsiocb, 0);
12378 if (ret != IOCB_SUCCESS) {
12379 lpfc_els_free_iocb(vport->phba, elsiocb);
12380 lpfc_nlp_put(ndlp);
12386 kfree(vmid_context);
12391 lpfc_cmpl_els_uvem(struct lpfc_hba *phba, struct lpfc_iocbq *icmdiocb,
12392 struct lpfc_iocbq *rspiocb)
12394 struct lpfc_vport *vport = icmdiocb->vport;
12395 struct lpfc_dmabuf *prsp = NULL;
12396 struct lpfc_vmid_context *vmid_context =
12397 icmdiocb->vmid_tag.vmid_context;
12398 struct lpfc_nodelist *ndlp = icmdiocb->ndlp;
12401 u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
12402 u32 ulp_word4 = get_job_word4(phba, rspiocb);
12403 struct lpfc_dmabuf *dmabuf = icmdiocb->cmd_dmabuf;
12404 struct lpfc_vmid *vmid;
12406 vmid = vmid_context->vmp;
12407 if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
12410 prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list);
12414 data = (u32 *)pcmd;
12415 if (data[0] == ELS_CMD_LS_RJT) {
12416 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI,
12417 "4532 UVEM LS_RJT %x %x\n", data[0], data[1]);
12421 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI,
12422 "4533 UVEM error status %x: %x\n",
12423 ulp_status, ulp_word4);
12426 spin_lock(&phba->hbalock);
12427 /* Set IN USE flag */
12428 vport->vmid_flag |= LPFC_VMID_IN_USE;
12429 phba->pport->vmid_flag |= LPFC_VMID_IN_USE;
12430 spin_unlock(&phba->hbalock);
12432 if (vmid_context->instantiated) {
12433 write_lock(&vport->vmid_lock);
12434 vmid->flag |= LPFC_VMID_REGISTERED;
12435 vmid->flag &= ~LPFC_VMID_REQ_REGISTER;
12436 write_unlock(&vport->vmid_lock);
12440 kfree(vmid_context);
12441 lpfc_els_free_iocb(phba, icmdiocb);
12442 lpfc_nlp_put(ndlp);