1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2021 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 *******************************************************************/
24 #include <linux/blkdev.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
27 #include <linux/pci.h>
28 #include <linux/kthread.h>
29 #include <linux/interrupt.h>
30 #include <linux/lockdep.h>
31 #include <linux/utsname.h>
33 #include <scsi/scsi.h>
34 #include <scsi/scsi_device.h>
35 #include <scsi/scsi_host.h>
36 #include <scsi/scsi_transport_fc.h>
37 #include <scsi/fc/fc_fs.h>
42 #include "lpfc_disc.h"
44 #include "lpfc_sli4.h"
46 #include "lpfc_scsi.h"
47 #include "lpfc_nvme.h"
48 #include "lpfc_logmsg.h"
49 #include "lpfc_crtn.h"
50 #include "lpfc_vport.h"
51 #include "lpfc_debugfs.h"
53 /* AlpaArray for assignment of scsid for scan-down and bind_method */
54 static uint8_t lpfcAlpaArray[] = {
55 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
56 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
57 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
58 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
59 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
60 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
61 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
62 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
63 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
64 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
65 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
66 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
67 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
70 static void lpfc_disc_timeout_handler(struct lpfc_vport *);
71 static void lpfc_disc_flush_list(struct lpfc_vport *vport);
72 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
73 static int lpfc_fcf_inuse(struct lpfc_hba *);
74 static void lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *);
75 static void lpfc_check_inactive_vmid(struct lpfc_hba *phba);
76 static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba);
79 lpfc_valid_xpt_node(struct lpfc_nodelist *ndlp)
81 if (ndlp->nlp_fc4_type ||
82 ndlp->nlp_type & NLP_FABRIC)
86 /* The source of a terminate rport I/O is either a dev_loss_tmo
87 * event or a call to fc_remove_host. While the rport should be
88 * valid during these downcalls, the transport can call twice
89 * in a single event. This routine provides somoe protection
90 * as the NDLP isn't really free, just released to the pool.
93 lpfc_rport_invalid(struct fc_rport *rport)
95 struct lpfc_rport_data *rdata;
96 struct lpfc_nodelist *ndlp;
99 pr_err("**** %s: NULL rport, exit.\n", __func__);
103 rdata = rport->dd_data;
105 pr_err("**** %s: NULL dd_data on rport x%px SID x%x\n",
106 __func__, rport, rport->scsi_target_id);
112 pr_err("**** %s: NULL ndlp on rport x%px SID x%x\n",
113 __func__, rport, rport->scsi_target_id);
118 pr_err("**** %s: Null vport on ndlp x%px, DID x%x rport x%px "
119 "SID x%x\n", __func__, ndlp, ndlp->nlp_DID, rport,
120 rport->scsi_target_id);
127 lpfc_terminate_rport_io(struct fc_rport *rport)
129 struct lpfc_rport_data *rdata;
130 struct lpfc_nodelist *ndlp;
131 struct lpfc_vport *vport;
133 if (lpfc_rport_invalid(rport))
136 rdata = rport->dd_data;
139 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
140 "rport terminate: sid:x%x did:x%x flg:x%x",
141 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
143 if (ndlp->nlp_sid != NLP_NO_SID)
144 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT);
148 * This function will be called when dev_loss_tmo fire.
151 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
153 struct lpfc_nodelist *ndlp;
154 struct lpfc_vport *vport;
155 struct lpfc_hba *phba;
156 struct lpfc_work_evt *evtp;
157 unsigned long iflags;
159 ndlp = ((struct lpfc_rport_data *)rport->dd_data)->pnode;
166 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
167 "rport devlosscb: sid:x%x did:x%x flg:x%x",
168 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
170 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
171 "3181 dev_loss_callbk x%06x, rport x%px flg x%x "
172 "load_flag x%x refcnt %d\n",
173 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag,
174 vport->load_flag, kref_read(&ndlp->kref));
176 /* Don't schedule a worker thread event if the vport is going down.
177 * The teardown process cleans up the node via lpfc_drop_node.
179 if (vport->load_flag & FC_UNLOADING) {
180 ((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL;
183 ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD;
185 /* Remove the node reference from remote_port_add now.
186 * The driver will not call remote_port_delete.
192 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
195 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn))
196 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
197 "6789 rport name %llx != node port name %llx",
199 wwn_to_u64(ndlp->nlp_portname.u.wwn));
201 evtp = &ndlp->dev_loss_evt;
203 if (!list_empty(&evtp->evt_listp)) {
204 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
205 "6790 rport name %llx dev_loss_evt pending\n",
210 spin_lock_irqsave(&ndlp->lock, iflags);
211 ndlp->nlp_flag |= NLP_IN_DEV_LOSS;
212 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
215 * The backend does not expect any more calls associated with this
216 * rport. Remove the association between rport and ndlp.
218 ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD;
219 ((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL;
221 spin_unlock_irqrestore(&ndlp->lock, iflags);
223 /* We need to hold the node by incrementing the reference
224 * count until this queued work is done
226 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
228 spin_lock_irqsave(&phba->hbalock, iflags);
229 if (evtp->evt_arg1) {
230 evtp->evt = LPFC_EVT_DEV_LOSS;
231 list_add_tail(&evtp->evt_listp, &phba->work_list);
232 lpfc_worker_wake_up(phba);
234 spin_unlock_irqrestore(&phba->hbalock, iflags);
240 * lpfc_check_inactive_vmid_one - VMID inactivity checker for a vport
241 * @vport: Pointer to vport context object.
243 * This function checks for idle VMID entries related to a particular vport. If
244 * found unused/idle, free them accordingly.
246 static void lpfc_check_inactive_vmid_one(struct lpfc_vport *vport)
249 u32 difftime = 0, r, bucket;
252 struct lpfc_vmid *vmp;
254 write_lock(&vport->vmid_lock);
256 if (!vport->cur_vmid_cnt)
259 /* iterate through the table */
260 hash_for_each(vport->hash_table, bucket, vmp, hnode) {
262 if (vmp->flag & LPFC_VMID_REGISTERED) {
263 /* check if the particular VMID is in use */
264 /* for all available per cpu variable */
265 for_each_possible_cpu(cpu) {
266 /* if last access time is less than timeout */
267 lta = per_cpu_ptr(vmp->last_io_time, cpu);
270 difftime = (jiffies) - (*lta);
271 if ((vport->vmid_inactivity_timeout *
272 JIFFIES_PER_HR) > difftime) {
278 /* if none of the cpus have been used by the vm, */
279 /* remove the entry if already registered */
281 /* mark the entry for deregistration */
282 vmp->flag = LPFC_VMID_DE_REGISTER;
283 write_unlock(&vport->vmid_lock);
284 if (vport->vmid_priority_tagging)
285 r = lpfc_vmid_uvem(vport, vmp, false);
287 r = lpfc_vmid_cmd(vport,
291 /* decrement number of active vms and mark */
292 /* entry in slot as free */
293 write_lock(&vport->vmid_lock);
295 struct lpfc_vmid *ht = vmp;
297 vport->cur_vmid_cnt--;
298 ht->flag = LPFC_VMID_SLOT_FREE;
299 free_percpu(ht->last_io_time);
300 ht->last_io_time = NULL;
301 hash_del(&ht->hnode);
307 write_unlock(&vport->vmid_lock);
311 * lpfc_check_inactive_vmid - VMID inactivity checker
312 * @phba: Pointer to hba context object.
314 * This function is called from the worker thread to determine if an entry in
315 * the VMID table can be released since there was no I/O activity seen from that
316 * particular VM for the specified time. When this happens, the entry in the
317 * table is released and also the resources on the switch cleared.
320 static void lpfc_check_inactive_vmid(struct lpfc_hba *phba)
322 struct lpfc_vport *vport;
323 struct lpfc_vport **vports;
326 vports = lpfc_create_vport_work_array(phba);
330 for (i = 0; i <= phba->max_vports; i++) {
331 if ((!vports[i]) && (i == 0))
338 lpfc_check_inactive_vmid_one(vport);
340 lpfc_destroy_vport_work_array(phba, vports);
344 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
345 * @ndlp: Pointer to remote node object.
347 * This function is called from the worker thread when devloss timeout timer
348 * expires. For SLI4 host, this routine shall return 1 when at lease one
349 * remote node, including this @ndlp, is still in use of FCF; otherwise, this
350 * routine shall return 0 when there is no remote node is still in use of FCF
351 * when devloss timeout happened to this @ndlp.
354 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
356 struct lpfc_vport *vport;
357 struct lpfc_hba *phba;
361 unsigned long iflags;
364 name = (uint8_t *)&ndlp->nlp_portname;
367 spin_lock_irqsave(&ndlp->lock, iflags);
368 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
369 spin_unlock_irqrestore(&ndlp->lock, iflags);
371 if (phba->sli_rev == LPFC_SLI_REV4)
372 fcf_inuse = lpfc_fcf_inuse(phba);
374 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
375 "rport devlosstmo:did:x%x type:x%x id:x%x",
376 ndlp->nlp_DID, ndlp->nlp_type, ndlp->nlp_sid);
378 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
379 "3182 %s x%06x, nflag x%x xflags x%x refcnt %d\n",
380 __func__, ndlp->nlp_DID, ndlp->nlp_flag,
381 ndlp->fc4_xpt_flags, kref_read(&ndlp->kref));
383 /* If the driver is recovering the rport, ignore devloss. */
384 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
385 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
386 "0284 Devloss timeout Ignored on "
387 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
389 *name, *(name+1), *(name+2), *(name+3),
390 *(name+4), *(name+5), *(name+6), *(name+7),
395 /* Fabric nodes are done. */
396 if (ndlp->nlp_type & NLP_FABRIC) {
401 if (ndlp->nlp_sid != NLP_NO_SID) {
403 lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT);
407 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
408 "0203 Devloss timeout on "
409 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
410 "NPort x%06x Data: x%x x%x x%x\n",
411 *name, *(name+1), *(name+2), *(name+3),
412 *(name+4), *(name+5), *(name+6), *(name+7),
413 ndlp->nlp_DID, ndlp->nlp_flag,
414 ndlp->nlp_state, ndlp->nlp_rpi);
416 lpfc_printf_vlog(vport, KERN_INFO, LOG_TRACE_EVENT,
417 "0204 Devloss timeout on "
418 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
419 "NPort x%06x Data: x%x x%x x%x\n",
420 *name, *(name+1), *(name+2), *(name+3),
421 *(name+4), *(name+5), *(name+6), *(name+7),
422 ndlp->nlp_DID, ndlp->nlp_flag,
423 ndlp->nlp_state, ndlp->nlp_rpi);
426 if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD))
427 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
432 static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba)
434 struct lpfc_vport *vport;
435 struct lpfc_vport **vports;
438 vports = lpfc_create_vport_work_array(phba);
442 for (i = 0; i <= phba->max_vports; i++) {
443 if ((!vports[i]) && (i == 0))
450 if (vport->vmid_flag & LPFC_VMID_ISSUE_QFPA) {
451 if (!lpfc_issue_els_qfpa(vport))
452 vport->vmid_flag &= ~LPFC_VMID_ISSUE_QFPA;
455 lpfc_destroy_vport_work_array(phba, vports);
459 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
460 * @phba: Pointer to hba context object.
461 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
462 * @nlp_did: remote node identifer with devloss timeout.
464 * This function is called from the worker thread after invoking devloss
465 * timeout handler and releasing the reference count for the ndlp with
466 * which the devloss timeout was handled for SLI4 host. For the devloss
467 * timeout of the last remote node which had been in use of FCF, when this
468 * routine is invoked, it shall be guaranteed that none of the remote are
469 * in-use of FCF. When devloss timeout to the last remote using the FCF,
470 * if the FIP engine is neither in FCF table scan process nor roundrobin
471 * failover process, the in-use FCF shall be unregistered. If the FIP
472 * engine is in FCF discovery process, the devloss timeout state shall
473 * be set for either the FCF table scan process or roundrobin failover
474 * process to unregister the in-use FCF.
477 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
480 /* If devloss timeout happened to a remote node when FCF had no
481 * longer been in-use, do nothing.
486 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
487 spin_lock_irq(&phba->hbalock);
488 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
489 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
490 spin_unlock_irq(&phba->hbalock);
493 phba->hba_flag |= HBA_DEVLOSS_TMO;
494 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
495 "2847 Last remote node (x%x) using "
496 "FCF devloss tmo\n", nlp_did);
498 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
499 spin_unlock_irq(&phba->hbalock);
500 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
501 "2868 Devloss tmo to FCF rediscovery "
505 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
506 spin_unlock_irq(&phba->hbalock);
507 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
508 "2869 Devloss tmo to idle FIP engine, "
509 "unreg in-use FCF and rescan.\n");
510 /* Unregister in-use FCF and rescan */
511 lpfc_unregister_fcf_rescan(phba);
514 spin_unlock_irq(&phba->hbalock);
515 if (phba->hba_flag & FCF_TS_INPROG)
516 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
517 "2870 FCF table scan in progress\n");
518 if (phba->hba_flag & FCF_RR_INPROG)
519 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
520 "2871 FLOGI roundrobin FCF failover "
523 lpfc_unregister_unused_fcf(phba);
527 * lpfc_alloc_fast_evt - Allocates data structure for posting event
528 * @phba: Pointer to hba context object.
530 * This function is called from the functions which need to post
531 * events from interrupt context. This function allocates data
532 * structure required for posting event. It also keeps track of
533 * number of events pending and prevent event storm when there are
536 struct lpfc_fast_path_event *
537 lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
538 struct lpfc_fast_path_event *ret;
540 /* If there are lot of fast event do not exhaust memory due to this */
541 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
544 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
547 atomic_inc(&phba->fast_event_count);
548 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
549 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
555 * lpfc_free_fast_evt - Frees event data structure
556 * @phba: Pointer to hba context object.
557 * @evt: Event object which need to be freed.
559 * This function frees the data structure required for posting
563 lpfc_free_fast_evt(struct lpfc_hba *phba,
564 struct lpfc_fast_path_event *evt) {
566 atomic_dec(&phba->fast_event_count);
571 * lpfc_send_fastpath_evt - Posts events generated from fast path
572 * @phba: Pointer to hba context object.
573 * @evtp: Event data structure.
575 * This function is called from worker thread, when the interrupt
576 * context need to post an event. This function posts the event
577 * to fc transport netlink interface.
580 lpfc_send_fastpath_evt(struct lpfc_hba *phba,
581 struct lpfc_work_evt *evtp)
583 unsigned long evt_category, evt_sub_category;
584 struct lpfc_fast_path_event *fast_evt_data;
586 uint32_t evt_data_size;
587 struct Scsi_Host *shost;
589 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
592 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
593 evt_sub_category = (unsigned long) fast_evt_data->un.
594 fabric_evt.subcategory;
595 shost = lpfc_shost_from_vport(fast_evt_data->vport);
596 if (evt_category == FC_REG_FABRIC_EVENT) {
597 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
598 evt_data = (char *) &fast_evt_data->un.read_check_error;
599 evt_data_size = sizeof(fast_evt_data->un.
601 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
602 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
603 evt_data = (char *) &fast_evt_data->un.fabric_evt;
604 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
606 lpfc_free_fast_evt(phba, fast_evt_data);
609 } else if (evt_category == FC_REG_SCSI_EVENT) {
610 switch (evt_sub_category) {
611 case LPFC_EVENT_QFULL:
612 case LPFC_EVENT_DEVBSY:
613 evt_data = (char *) &fast_evt_data->un.scsi_evt;
614 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
616 case LPFC_EVENT_CHECK_COND:
617 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
618 evt_data_size = sizeof(fast_evt_data->un.
621 case LPFC_EVENT_VARQUEDEPTH:
622 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
623 evt_data_size = sizeof(fast_evt_data->un.
627 lpfc_free_fast_evt(phba, fast_evt_data);
631 lpfc_free_fast_evt(phba, fast_evt_data);
635 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
636 fc_host_post_vendor_event(shost,
637 fc_get_event_number(),
642 lpfc_free_fast_evt(phba, fast_evt_data);
647 lpfc_work_list_done(struct lpfc_hba *phba)
649 struct lpfc_work_evt *evtp = NULL;
650 struct lpfc_nodelist *ndlp;
655 spin_lock_irq(&phba->hbalock);
656 while (!list_empty(&phba->work_list)) {
657 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
659 spin_unlock_irq(&phba->hbalock);
662 case LPFC_EVT_ELS_RETRY:
663 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
664 lpfc_els_retry_delay_handler(ndlp);
665 free_evt = 0; /* evt is part of ndlp */
666 /* decrement the node reference count held
667 * for this queued work
671 case LPFC_EVT_DEV_LOSS:
672 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
673 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
675 /* decrement the node reference count held for
678 nlp_did = ndlp->nlp_DID;
680 if (phba->sli_rev == LPFC_SLI_REV4)
681 lpfc_sli4_post_dev_loss_tmo_handler(phba,
685 case LPFC_EVT_RECOVER_PORT:
686 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
687 lpfc_sli_abts_recover_port(ndlp->vport, ndlp);
689 /* decrement the node reference count held for
694 case LPFC_EVT_ONLINE:
695 if (phba->link_state < LPFC_LINK_DOWN)
696 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
698 *(int *) (evtp->evt_arg1) = 0;
699 complete((struct completion *)(evtp->evt_arg2));
701 case LPFC_EVT_OFFLINE_PREP:
702 if (phba->link_state >= LPFC_LINK_DOWN)
703 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
704 *(int *)(evtp->evt_arg1) = 0;
705 complete((struct completion *)(evtp->evt_arg2));
707 case LPFC_EVT_OFFLINE:
709 lpfc_sli_brdrestart(phba);
710 *(int *)(evtp->evt_arg1) =
711 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
712 lpfc_unblock_mgmt_io(phba);
713 complete((struct completion *)(evtp->evt_arg2));
715 case LPFC_EVT_WARM_START:
717 lpfc_reset_barrier(phba);
718 lpfc_sli_brdreset(phba);
719 lpfc_hba_down_post(phba);
720 *(int *)(evtp->evt_arg1) =
721 lpfc_sli_brdready(phba, HS_MBRDY);
722 lpfc_unblock_mgmt_io(phba);
723 complete((struct completion *)(evtp->evt_arg2));
727 *(int *)(evtp->evt_arg1)
728 = (phba->pport->stopped)
729 ? 0 : lpfc_sli_brdkill(phba);
730 lpfc_unblock_mgmt_io(phba);
731 complete((struct completion *)(evtp->evt_arg2));
733 case LPFC_EVT_FASTPATH_MGMT_EVT:
734 lpfc_send_fastpath_evt(phba, evtp);
737 case LPFC_EVT_RESET_HBA:
738 if (!(phba->pport->load_flag & FC_UNLOADING))
739 lpfc_reset_hba(phba);
744 spin_lock_irq(&phba->hbalock);
746 spin_unlock_irq(&phba->hbalock);
751 lpfc_work_done(struct lpfc_hba *phba)
753 struct lpfc_sli_ring *pring;
754 uint32_t ha_copy, status, control, work_port_events;
755 struct lpfc_vport **vports;
756 struct lpfc_vport *vport;
759 spin_lock_irq(&phba->hbalock);
760 ha_copy = phba->work_ha;
762 spin_unlock_irq(&phba->hbalock);
764 /* First, try to post the next mailbox command to SLI4 device */
765 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
766 lpfc_sli4_post_async_mbox(phba);
768 if (ha_copy & HA_ERATT)
769 /* Handle the error attention event */
770 lpfc_handle_eratt(phba);
772 if (ha_copy & HA_MBATT)
773 lpfc_sli_handle_mb_event(phba);
775 if (ha_copy & HA_LATT)
776 lpfc_handle_latt(phba);
778 /* Handle VMID Events */
779 if (lpfc_is_vmid_enabled(phba)) {
780 if (phba->pport->work_port_events &
781 WORKER_CHECK_VMID_ISSUE_QFPA) {
782 lpfc_check_vmid_qfpa_issue(phba);
783 phba->pport->work_port_events &=
784 ~WORKER_CHECK_VMID_ISSUE_QFPA;
786 if (phba->pport->work_port_events &
787 WORKER_CHECK_INACTIVE_VMID) {
788 lpfc_check_inactive_vmid(phba);
789 phba->pport->work_port_events &=
790 ~WORKER_CHECK_INACTIVE_VMID;
794 /* Process SLI4 events */
795 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
796 if (phba->hba_flag & HBA_RRQ_ACTIVE)
797 lpfc_handle_rrq_active(phba);
798 if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
799 lpfc_sli4_els_xri_abort_event_proc(phba);
800 if (phba->hba_flag & ASYNC_EVENT)
801 lpfc_sli4_async_event_proc(phba);
802 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
803 spin_lock_irq(&phba->hbalock);
804 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
805 spin_unlock_irq(&phba->hbalock);
806 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
808 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
809 lpfc_sli4_fcf_redisc_event_proc(phba);
812 vports = lpfc_create_vport_work_array(phba);
814 for (i = 0; i <= phba->max_vports; i++) {
816 * We could have no vports in array if unloading, so if
817 * this happens then just use the pport
819 if (vports[i] == NULL && i == 0)
825 spin_lock_irq(&vport->work_port_lock);
826 work_port_events = vport->work_port_events;
827 vport->work_port_events &= ~work_port_events;
828 spin_unlock_irq(&vport->work_port_lock);
829 if (work_port_events & WORKER_DISC_TMO)
830 lpfc_disc_timeout_handler(vport);
831 if (work_port_events & WORKER_ELS_TMO)
832 lpfc_els_timeout_handler(vport);
833 if (work_port_events & WORKER_HB_TMO)
834 lpfc_hb_timeout_handler(phba);
835 if (work_port_events & WORKER_MBOX_TMO)
836 lpfc_mbox_timeout_handler(phba);
837 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
838 lpfc_unblock_fabric_iocbs(phba);
839 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
840 lpfc_ramp_down_queue_handler(phba);
841 if (work_port_events & WORKER_DELAYED_DISC_TMO)
842 lpfc_delayed_disc_timeout_handler(vport);
844 lpfc_destroy_vport_work_array(phba, vports);
846 pring = lpfc_phba_elsring(phba);
847 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
848 status >>= (4*LPFC_ELS_RING);
849 if (pring && (status & HA_RXMASK ||
850 pring->flag & LPFC_DEFERRED_RING_EVENT ||
851 phba->hba_flag & HBA_SP_QUEUE_EVT)) {
852 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
853 pring->flag |= LPFC_DEFERRED_RING_EVENT;
854 /* Preserve legacy behavior. */
855 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT))
856 set_bit(LPFC_DATA_READY, &phba->data_flags);
858 /* Driver could have abort request completed in queue
859 * when link goes down. Allow for this transition.
861 if (phba->link_state >= LPFC_LINK_DOWN ||
862 phba->link_flag & LS_MDS_LOOPBACK) {
863 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
864 lpfc_sli_handle_slow_ring_event(phba, pring,
869 if (phba->sli_rev == LPFC_SLI_REV4)
870 lpfc_drain_txq(phba);
872 * Turn on Ring interrupts
874 if (phba->sli_rev <= LPFC_SLI_REV3) {
875 spin_lock_irq(&phba->hbalock);
876 control = readl(phba->HCregaddr);
877 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
878 lpfc_debugfs_slow_ring_trc(phba,
879 "WRK Enable ring: cntl:x%x hacopy:x%x",
880 control, ha_copy, 0);
882 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
883 writel(control, phba->HCregaddr);
884 readl(phba->HCregaddr); /* flush */
886 lpfc_debugfs_slow_ring_trc(phba,
887 "WRK Ring ok: cntl:x%x hacopy:x%x",
888 control, ha_copy, 0);
890 spin_unlock_irq(&phba->hbalock);
893 lpfc_work_list_done(phba);
897 lpfc_do_work(void *p)
899 struct lpfc_hba *phba = p;
902 set_user_nice(current, MIN_NICE);
903 current->flags |= PF_NOFREEZE;
904 phba->data_flags = 0;
906 while (!kthread_should_stop()) {
907 /* wait and check worker queue activities */
908 rc = wait_event_interruptible(phba->work_waitq,
909 (test_and_clear_bit(LPFC_DATA_READY,
911 || kthread_should_stop()));
912 /* Signal wakeup shall terminate the worker thread */
914 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
915 "0433 Wakeup on signal: rc=x%x\n", rc);
919 /* Attend pending lpfc data processing */
920 lpfc_work_done(phba);
922 phba->worker_thread = NULL;
923 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
924 "0432 Worker thread stopped.\n");
929 * This is only called to handle FC worker events. Since this a rare
930 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
931 * embedding it in the IOCB.
934 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
937 struct lpfc_work_evt *evtp;
941 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
942 * be queued to worker thread for processing
944 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
948 evtp->evt_arg1 = arg1;
949 evtp->evt_arg2 = arg2;
952 spin_lock_irqsave(&phba->hbalock, flags);
953 list_add_tail(&evtp->evt_listp, &phba->work_list);
954 spin_unlock_irqrestore(&phba->hbalock, flags);
956 lpfc_worker_wake_up(phba);
962 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
964 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
965 struct lpfc_hba *phba = vport->phba;
966 struct lpfc_nodelist *ndlp, *next_ndlp;
968 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
969 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
972 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
973 ((vport->port_type == LPFC_NPIV_PORT) &&
974 ((ndlp->nlp_DID == NameServer_DID) ||
975 (ndlp->nlp_DID == FDMI_DID) ||
976 (ndlp->nlp_DID == Fabric_Cntl_DID))))
977 lpfc_unreg_rpi(vport, ndlp);
979 /* Leave Fabric nodes alone on link down */
980 if ((phba->sli_rev < LPFC_SLI_REV4) &&
981 (!remove && ndlp->nlp_type & NLP_FABRIC))
984 /* Notify transport of connectivity loss to trigger cleanup. */
985 if (phba->nvmet_support &&
986 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
987 lpfc_nvmet_invalidate_host(phba, ndlp);
989 lpfc_disc_state_machine(vport, ndlp, NULL,
992 : NLP_EVT_DEVICE_RECOVERY);
994 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
995 if (phba->sli_rev == LPFC_SLI_REV4)
996 lpfc_sli4_unreg_all_rpis(vport);
997 lpfc_mbx_unreg_vpi(vport);
998 spin_lock_irq(shost->host_lock);
999 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1000 spin_unlock_irq(shost->host_lock);
1005 lpfc_port_link_failure(struct lpfc_vport *vport)
1007 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
1009 /* Cleanup any outstanding received buffers */
1010 lpfc_cleanup_rcv_buffers(vport);
1012 /* Cleanup any outstanding RSCN activity */
1013 lpfc_els_flush_rscn(vport);
1015 /* Cleanup any outstanding ELS commands */
1016 lpfc_els_flush_cmd(vport);
1018 lpfc_cleanup_rpis(vport, 0);
1020 /* Turn off discovery timer if its running */
1021 lpfc_can_disctmo(vport);
1025 lpfc_linkdown_port(struct lpfc_vport *vport)
1027 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1029 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
1030 fc_host_post_event(shost, fc_get_event_number(),
1031 FCH_EVT_LINKDOWN, 0);
1033 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1034 "Link Down: state:x%x rtry:x%x flg:x%x",
1035 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
1037 lpfc_port_link_failure(vport);
1039 /* Stop delayed Nport discovery */
1040 spin_lock_irq(shost->host_lock);
1041 vport->fc_flag &= ~FC_DISC_DELAYED;
1042 spin_unlock_irq(shost->host_lock);
1043 del_timer_sync(&vport->delayed_disc_tmo);
1047 lpfc_linkdown(struct lpfc_hba *phba)
1049 struct lpfc_vport *vport = phba->pport;
1050 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1051 struct lpfc_vport **vports;
1055 if (phba->link_state == LPFC_LINK_DOWN)
1058 /* Block all SCSI stack I/Os */
1059 lpfc_scsi_dev_block(phba);
1061 phba->defer_flogi_acc_flag = false;
1063 spin_lock_irq(&phba->hbalock);
1064 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
1065 spin_unlock_irq(&phba->hbalock);
1066 if (phba->link_state > LPFC_LINK_DOWN) {
1067 phba->link_state = LPFC_LINK_DOWN;
1068 if (phba->sli4_hba.conf_trunk) {
1069 phba->trunk_link.link0.state = 0;
1070 phba->trunk_link.link1.state = 0;
1071 phba->trunk_link.link2.state = 0;
1072 phba->trunk_link.link3.state = 0;
1073 phba->sli4_hba.link_state.logical_speed =
1074 LPFC_LINK_SPEED_UNKNOWN;
1076 spin_lock_irq(shost->host_lock);
1077 phba->pport->fc_flag &= ~FC_LBIT;
1078 spin_unlock_irq(shost->host_lock);
1080 vports = lpfc_create_vport_work_array(phba);
1081 if (vports != NULL) {
1082 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1083 /* Issue a LINK DOWN event to all nodes */
1084 lpfc_linkdown_port(vports[i]);
1086 vports[i]->fc_myDID = 0;
1088 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
1089 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
1090 if (phba->nvmet_support)
1091 lpfc_nvmet_update_targetport(phba);
1093 lpfc_nvme_update_localport(vports[i]);
1097 lpfc_destroy_vport_work_array(phba, vports);
1099 /* Clean up any SLI3 firmware default rpi's */
1100 if (phba->sli_rev > LPFC_SLI_REV3)
1101 goto skip_unreg_did;
1103 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1105 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
1107 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1108 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
1109 == MBX_NOT_FINISHED) {
1110 mempool_free(mb, phba->mbox_mem_pool);
1115 /* Setup myDID for link up if we are in pt2pt mode */
1116 if (phba->pport->fc_flag & FC_PT2PT) {
1117 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1119 lpfc_config_link(phba, mb);
1120 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1122 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
1123 == MBX_NOT_FINISHED) {
1124 mempool_free(mb, phba->mbox_mem_pool);
1127 spin_lock_irq(shost->host_lock);
1128 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
1129 phba->pport->rcv_flogi_cnt = 0;
1130 spin_unlock_irq(shost->host_lock);
1136 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
1138 struct lpfc_nodelist *ndlp;
1140 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
1141 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
1143 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
1145 if (ndlp->nlp_type & NLP_FABRIC) {
1146 /* On Linkup its safe to clean up the ndlp
1147 * from Fabric connections.
1149 if (ndlp->nlp_DID != Fabric_DID)
1150 lpfc_unreg_rpi(vport, ndlp);
1151 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1152 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
1153 /* Fail outstanding IO now since device is
1156 lpfc_unreg_rpi(vport, ndlp);
1162 lpfc_linkup_port(struct lpfc_vport *vport)
1164 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1165 struct lpfc_hba *phba = vport->phba;
1167 if ((vport->load_flag & FC_UNLOADING) != 0)
1170 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1171 "Link Up: top:x%x speed:x%x flg:x%x",
1172 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
1174 /* If NPIV is not enabled, only bring the physical port up */
1175 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1176 (vport != phba->pport))
1179 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
1180 fc_host_post_event(shost, fc_get_event_number(),
1183 spin_lock_irq(shost->host_lock);
1184 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
1185 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
1186 vport->fc_flag |= FC_NDISC_ACTIVE;
1187 vport->fc_ns_retry = 0;
1188 spin_unlock_irq(shost->host_lock);
1190 lpfc_linkup_cleanup_nodes(vport);
1194 lpfc_linkup(struct lpfc_hba *phba)
1196 struct lpfc_vport **vports;
1198 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
1200 phba->link_state = LPFC_LINK_UP;
1202 /* Unblock fabric iocbs if they are blocked */
1203 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
1204 del_timer_sync(&phba->fabric_block_timer);
1206 vports = lpfc_create_vport_work_array(phba);
1208 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1209 lpfc_linkup_port(vports[i]);
1210 lpfc_destroy_vport_work_array(phba, vports);
1212 /* Clear the pport flogi counter in case the link down was
1213 * absorbed without an ACQE. No lock here - in worker thread
1214 * and discovery is synchronized.
1216 spin_lock_irq(shost->host_lock);
1217 phba->pport->rcv_flogi_cnt = 0;
1218 spin_unlock_irq(shost->host_lock);
1220 /* reinitialize initial FLOGI flag */
1221 phba->hba_flag &= ~(HBA_FLOGI_ISSUED);
1222 phba->defer_flogi_acc_flag = false;
1228 * This routine handles processing a CLEAR_LA mailbox
1229 * command upon completion. It is setup in the LPFC_MBOXQ
1230 * as the completion routine when the command is
1231 * handed off to the SLI layer. SLI3 only.
1234 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1236 struct lpfc_vport *vport = pmb->vport;
1237 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1238 struct lpfc_sli *psli = &phba->sli;
1239 MAILBOX_t *mb = &pmb->u.mb;
1242 /* Since we don't do discovery right now, turn these off here */
1243 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1244 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1246 /* Check for error */
1247 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
1248 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1249 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1250 "0320 CLEAR_LA mbxStatus error x%x hba "
1252 mb->mbxStatus, vport->port_state);
1253 phba->link_state = LPFC_HBA_ERROR;
1257 if (vport->port_type == LPFC_PHYSICAL_PORT)
1258 phba->link_state = LPFC_HBA_READY;
1260 spin_lock_irq(&phba->hbalock);
1261 psli->sli_flag |= LPFC_PROCESS_LA;
1262 control = readl(phba->HCregaddr);
1263 control |= HC_LAINT_ENA;
1264 writel(control, phba->HCregaddr);
1265 readl(phba->HCregaddr); /* flush */
1266 spin_unlock_irq(&phba->hbalock);
1267 mempool_free(pmb, phba->mbox_mem_pool);
1271 /* Device Discovery completes */
1272 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1273 "0225 Device Discovery completes\n");
1274 mempool_free(pmb, phba->mbox_mem_pool);
1276 spin_lock_irq(shost->host_lock);
1277 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
1278 spin_unlock_irq(shost->host_lock);
1280 lpfc_can_disctmo(vport);
1282 /* turn on Link Attention interrupts */
1284 spin_lock_irq(&phba->hbalock);
1285 psli->sli_flag |= LPFC_PROCESS_LA;
1286 control = readl(phba->HCregaddr);
1287 control |= HC_LAINT_ENA;
1288 writel(control, phba->HCregaddr);
1289 readl(phba->HCregaddr); /* flush */
1290 spin_unlock_irq(&phba->hbalock);
1296 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1298 struct lpfc_vport *vport = pmb->vport;
1299 LPFC_MBOXQ_t *sparam_mb;
1300 struct lpfc_dmabuf *sparam_mp;
1301 u16 status = pmb->u.mb.mbxStatus;
1304 mempool_free(pmb, phba->mbox_mem_pool);
1309 /* don't perform discovery for SLI4 loopback diagnostic test */
1310 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1311 !(phba->hba_flag & HBA_FCOE_MODE) &&
1312 (phba->link_flag & LS_LOOPBACK_MODE))
1315 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
1316 vport->fc_flag & FC_PUBLIC_LOOP &&
1317 !(vport->fc_flag & FC_LBIT)) {
1318 /* Need to wait for FAN - use discovery timer
1319 * for timeout. port_state is identically
1320 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1322 lpfc_set_disctmo(vport);
1326 /* Start discovery by sending a FLOGI. port_state is identically
1327 * LPFC_FLOGI while waiting for FLOGI cmpl.
1329 if (vport->port_state != LPFC_FLOGI) {
1330 /* Issue MBX_READ_SPARAM to update CSPs before FLOGI if
1331 * bb-credit recovery is in place.
1333 if (phba->bbcredit_support && phba->cfg_enable_bbcr &&
1334 !(phba->link_flag & LS_LOOPBACK_MODE)) {
1335 sparam_mb = mempool_alloc(phba->mbox_mem_pool,
1340 rc = lpfc_read_sparam(phba, sparam_mb, 0);
1342 mempool_free(sparam_mb, phba->mbox_mem_pool);
1345 sparam_mb->vport = vport;
1346 sparam_mb->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
1347 rc = lpfc_sli_issue_mbox(phba, sparam_mb, MBX_NOWAIT);
1348 if (rc == MBX_NOT_FINISHED) {
1349 sparam_mp = (struct lpfc_dmabuf *)
1351 lpfc_mbuf_free(phba, sparam_mp->virt,
1354 sparam_mb->ctx_buf = NULL;
1355 mempool_free(sparam_mb, phba->mbox_mem_pool);
1359 phba->hba_flag |= HBA_DEFER_FLOGI;
1361 lpfc_initial_flogi(vport);
1364 if (vport->fc_flag & FC_PT2PT)
1365 lpfc_disc_start(vport);
1370 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1371 "0306 CONFIG_LINK mbxStatus error x%x HBA state x%x\n",
1372 status, vport->port_state);
1375 lpfc_linkdown(phba);
1377 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1378 "0200 CONFIG_LINK bad hba state x%x\n",
1381 lpfc_issue_clear_la(phba, vport);
1386 * lpfc_sli4_clear_fcf_rr_bmask
1387 * @phba: pointer to the struct lpfc_hba for this port.
1388 * This fucnction resets the round robin bit mask and clears the
1389 * fcf priority list. The list deletions are done while holding the
1390 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1391 * from the lpfc_fcf_pri record.
1394 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
1396 struct lpfc_fcf_pri *fcf_pri;
1397 struct lpfc_fcf_pri *next_fcf_pri;
1398 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
1399 spin_lock_irq(&phba->hbalock);
1400 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
1401 &phba->fcf.fcf_pri_list, list) {
1402 list_del_init(&fcf_pri->list);
1403 fcf_pri->fcf_rec.flag = 0;
1405 spin_unlock_irq(&phba->hbalock);
1408 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1410 struct lpfc_vport *vport = mboxq->vport;
1412 if (mboxq->u.mb.mbxStatus) {
1413 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
1414 "2017 REG_FCFI mbxStatus error x%x "
1415 "HBA state x%x\n", mboxq->u.mb.mbxStatus,
1420 /* Start FCoE discovery by sending a FLOGI. */
1421 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1422 /* Set the FCFI registered flag */
1423 spin_lock_irq(&phba->hbalock);
1424 phba->fcf.fcf_flag |= FCF_REGISTERED;
1425 spin_unlock_irq(&phba->hbalock);
1427 /* If there is a pending FCoE event, restart FCF table scan. */
1428 if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
1429 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
1432 /* Mark successful completion of FCF table scan */
1433 spin_lock_irq(&phba->hbalock);
1434 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1435 phba->hba_flag &= ~FCF_TS_INPROG;
1436 if (vport->port_state != LPFC_FLOGI) {
1437 phba->hba_flag |= FCF_RR_INPROG;
1438 spin_unlock_irq(&phba->hbalock);
1439 lpfc_issue_init_vfi(vport);
1442 spin_unlock_irq(&phba->hbalock);
1446 spin_lock_irq(&phba->hbalock);
1447 phba->hba_flag &= ~FCF_RR_INPROG;
1448 spin_unlock_irq(&phba->hbalock);
1450 mempool_free(mboxq, phba->mbox_mem_pool);
1454 * lpfc_fab_name_match - Check if the fcf fabric name match.
1455 * @fab_name: pointer to fabric name.
1456 * @new_fcf_record: pointer to fcf record.
1458 * This routine compare the fcf record's fabric name with provided
1459 * fabric name. If the fabric name are identical this function
1460 * returns 1 else return 0.
1463 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1465 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1467 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1469 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1471 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1473 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1475 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
1477 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1479 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1485 * lpfc_sw_name_match - Check if the fcf switch name match.
1486 * @sw_name: pointer to switch name.
1487 * @new_fcf_record: pointer to fcf record.
1489 * This routine compare the fcf record's switch name with provided
1490 * switch name. If the switch name are identical this function
1491 * returns 1 else return 0.
1494 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1496 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1498 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1500 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
1502 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1504 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1506 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1508 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1510 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1516 * lpfc_mac_addr_match - Check if the fcf mac address match.
1517 * @mac_addr: pointer to mac address.
1518 * @new_fcf_record: pointer to fcf record.
1520 * This routine compare the fcf record's mac address with HBA's
1521 * FCF mac address. If the mac addresses are identical this function
1522 * returns 1 else return 0.
1525 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
1527 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1529 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1531 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1533 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1535 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1537 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
1543 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1545 return (curr_vlan_id == new_vlan_id);
1549 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1550 * @phba: pointer to lpfc hba data structure.
1551 * @fcf_index: Index for the lpfc_fcf_record.
1552 * @new_fcf_record: pointer to hba fcf record.
1554 * This routine updates the driver FCF priority record from the new HBA FCF
1555 * record. The hbalock is asserted held in the code path calling this
1559 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
1560 struct fcf_record *new_fcf_record
1563 struct lpfc_fcf_pri *fcf_pri;
1565 fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1566 fcf_pri->fcf_rec.fcf_index = fcf_index;
1567 /* FCF record priority */
1568 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
1573 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1574 * @fcf_rec: pointer to driver fcf record.
1575 * @new_fcf_record: pointer to fcf record.
1577 * This routine copies the FCF information from the FCF
1578 * record to lpfc_hba data structure.
1581 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1582 struct fcf_record *new_fcf_record)
1585 fcf_rec->fabric_name[0] =
1586 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
1587 fcf_rec->fabric_name[1] =
1588 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
1589 fcf_rec->fabric_name[2] =
1590 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
1591 fcf_rec->fabric_name[3] =
1592 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
1593 fcf_rec->fabric_name[4] =
1594 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
1595 fcf_rec->fabric_name[5] =
1596 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
1597 fcf_rec->fabric_name[6] =
1598 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
1599 fcf_rec->fabric_name[7] =
1600 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
1602 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1603 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1604 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1605 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1606 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1607 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1608 /* FCF record index */
1609 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1610 /* FCF record priority */
1611 fcf_rec->priority = new_fcf_record->fip_priority;
1613 fcf_rec->switch_name[0] =
1614 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
1615 fcf_rec->switch_name[1] =
1616 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
1617 fcf_rec->switch_name[2] =
1618 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
1619 fcf_rec->switch_name[3] =
1620 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
1621 fcf_rec->switch_name[4] =
1622 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
1623 fcf_rec->switch_name[5] =
1624 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
1625 fcf_rec->switch_name[6] =
1626 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
1627 fcf_rec->switch_name[7] =
1628 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
1632 * __lpfc_update_fcf_record - Update driver fcf record
1633 * @phba: pointer to lpfc hba data structure.
1634 * @fcf_rec: pointer to driver fcf record.
1635 * @new_fcf_record: pointer to hba fcf record.
1636 * @addr_mode: address mode to be set to the driver fcf record.
1637 * @vlan_id: vlan tag to be set to the driver fcf record.
1638 * @flag: flag bits to be set to the driver fcf record.
1640 * This routine updates the driver FCF record from the new HBA FCF record
1641 * together with the address mode, vlan_id, and other informations. This
1642 * routine is called with the hbalock held.
1645 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1646 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1647 uint16_t vlan_id, uint32_t flag)
1649 lockdep_assert_held(&phba->hbalock);
1651 /* Copy the fields from the HBA's FCF record */
1652 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1653 /* Update other fields of driver FCF record */
1654 fcf_rec->addr_mode = addr_mode;
1655 fcf_rec->vlan_id = vlan_id;
1656 fcf_rec->flag |= (flag | RECORD_VALID);
1657 __lpfc_update_fcf_record_pri(phba,
1658 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
1663 * lpfc_register_fcf - Register the FCF with hba.
1664 * @phba: pointer to lpfc hba data structure.
1666 * This routine issues a register fcfi mailbox command to register
1670 lpfc_register_fcf(struct lpfc_hba *phba)
1672 LPFC_MBOXQ_t *fcf_mbxq;
1675 spin_lock_irq(&phba->hbalock);
1676 /* If the FCF is not available do nothing. */
1677 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
1678 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1679 spin_unlock_irq(&phba->hbalock);
1683 /* The FCF is already registered, start discovery */
1684 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
1685 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1686 phba->hba_flag &= ~FCF_TS_INPROG;
1687 if (phba->pport->port_state != LPFC_FLOGI &&
1688 phba->pport->fc_flag & FC_FABRIC) {
1689 phba->hba_flag |= FCF_RR_INPROG;
1690 spin_unlock_irq(&phba->hbalock);
1691 lpfc_initial_flogi(phba->pport);
1694 spin_unlock_irq(&phba->hbalock);
1697 spin_unlock_irq(&phba->hbalock);
1699 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1701 spin_lock_irq(&phba->hbalock);
1702 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1703 spin_unlock_irq(&phba->hbalock);
1707 lpfc_reg_fcfi(phba, fcf_mbxq);
1708 fcf_mbxq->vport = phba->pport;
1709 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1710 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
1711 if (rc == MBX_NOT_FINISHED) {
1712 spin_lock_irq(&phba->hbalock);
1713 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1714 spin_unlock_irq(&phba->hbalock);
1715 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
1722 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1723 * @phba: pointer to lpfc hba data structure.
1724 * @new_fcf_record: pointer to fcf record.
1725 * @boot_flag: Indicates if this record used by boot bios.
1726 * @addr_mode: The address mode to be used by this FCF
1727 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1729 * This routine compare the fcf record with connect list obtained from the
1730 * config region to decide if this FCF can be used for SAN discovery. It returns
1731 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1732 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1733 * is used by boot bios and addr_mode will indicate the addressing mode to be
1734 * used for this FCF when the function returns.
1735 * If the FCF record need to be used with a particular vlan id, the vlan is
1736 * set in the vlan_id on return of the function. If not VLAN tagging need to
1737 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1740 lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1741 struct fcf_record *new_fcf_record,
1742 uint32_t *boot_flag, uint32_t *addr_mode,
1745 struct lpfc_fcf_conn_entry *conn_entry;
1746 int i, j, fcf_vlan_id = 0;
1748 /* Find the lowest VLAN id in the FCF record */
1749 for (i = 0; i < 512; i++) {
1750 if (new_fcf_record->vlan_bitmap[i]) {
1751 fcf_vlan_id = i * 8;
1753 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1761 /* FCF not valid/available or solicitation in progress */
1762 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1763 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||
1764 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))
1767 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
1769 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1771 if (phba->valid_vlan)
1772 *vlan_id = phba->vlan_id;
1774 *vlan_id = LPFC_FCOE_NULL_VID;
1779 * If there are no FCF connection table entry, driver connect to all
1782 if (list_empty(&phba->fcf_conn_rec_list)) {
1784 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1788 * When there are no FCF connect entries, use driver's default
1789 * addressing mode - FPMA.
1791 if (*addr_mode & LPFC_FCF_FPMA)
1792 *addr_mode = LPFC_FCF_FPMA;
1794 /* If FCF record report a vlan id use that vlan id */
1796 *vlan_id = fcf_vlan_id;
1798 *vlan_id = LPFC_FCOE_NULL_VID;
1802 list_for_each_entry(conn_entry,
1803 &phba->fcf_conn_rec_list, list) {
1804 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1807 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1808 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
1811 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1812 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1815 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1817 * If the vlan bit map does not have the bit set for the
1818 * vlan id to be used, then it is not a match.
1820 if (!(new_fcf_record->vlan_bitmap
1821 [conn_entry->conn_rec.vlan_tag / 8] &
1822 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1827 * If connection record does not support any addressing mode,
1828 * skip the FCF record.
1830 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1831 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1835 * Check if the connection record specifies a required
1838 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1839 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1842 * If SPMA required but FCF not support this continue.
1844 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1845 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1846 new_fcf_record) & LPFC_FCF_SPMA))
1850 * If FPMA required but FCF not support this continue.
1852 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1853 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1854 new_fcf_record) & LPFC_FCF_FPMA))
1859 * This fcf record matches filtering criteria.
1861 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1867 * If user did not specify any addressing mode, or if the
1868 * preferred addressing mode specified by user is not supported
1869 * by FCF, allow fabric to pick the addressing mode.
1871 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1874 * If the user specified a required address mode, assign that
1877 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1878 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1879 *addr_mode = (conn_entry->conn_rec.flags &
1881 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1883 * If the user specified a preferred address mode, use the
1884 * addr mode only if FCF support the addr_mode.
1886 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1887 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1888 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1889 (*addr_mode & LPFC_FCF_SPMA))
1890 *addr_mode = LPFC_FCF_SPMA;
1891 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1892 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1893 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1894 (*addr_mode & LPFC_FCF_FPMA))
1895 *addr_mode = LPFC_FCF_FPMA;
1897 /* If matching connect list has a vlan id, use it */
1898 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1899 *vlan_id = conn_entry->conn_rec.vlan_tag;
1901 * If no vlan id is specified in connect list, use the vlan id
1904 else if (fcf_vlan_id)
1905 *vlan_id = fcf_vlan_id;
1907 *vlan_id = LPFC_FCOE_NULL_VID;
1916 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1917 * @phba: pointer to lpfc hba data structure.
1918 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1920 * This function check if there is any fcoe event pending while driver
1921 * scan FCF entries. If there is any pending event, it will restart the
1922 * FCF saning and return 1 else return 0.
1925 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1928 * If the Link is up and no FCoE events while in the
1929 * FCF discovery, no need to restart FCF discovery.
1931 if ((phba->link_state >= LPFC_LINK_UP) &&
1932 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
1935 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1936 "2768 Pending link or FCF event during current "
1937 "handling of the previous event: link_state:x%x, "
1938 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1939 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
1940 phba->fcoe_eventtag);
1942 spin_lock_irq(&phba->hbalock);
1943 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1944 spin_unlock_irq(&phba->hbalock);
1946 if (phba->link_state >= LPFC_LINK_UP) {
1947 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1948 "2780 Restart FCF table scan due to "
1949 "pending FCF event:evt_tag_at_scan:x%x, "
1950 "evt_tag_current:x%x\n",
1951 phba->fcoe_eventtag_at_fcf_scan,
1952 phba->fcoe_eventtag);
1953 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
1956 * Do not continue FCF discovery and clear FCF_TS_INPROG
1959 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1960 "2833 Stop FCF discovery process due to link "
1961 "state change (x%x)\n", phba->link_state);
1962 spin_lock_irq(&phba->hbalock);
1963 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1964 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
1965 spin_unlock_irq(&phba->hbalock);
1968 /* Unregister the currently registered FCF if required */
1970 spin_lock_irq(&phba->hbalock);
1971 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1972 spin_unlock_irq(&phba->hbalock);
1973 lpfc_sli4_unregister_fcf(phba);
1979 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1980 * @phba: pointer to lpfc hba data structure.
1981 * @fcf_cnt: number of eligible fcf record seen so far.
1983 * This function makes an running random selection decision on FCF record to
1984 * use through a sequence of @fcf_cnt eligible FCF records with equal
1985 * probability. To perform integer manunipulation of random numbers with
1986 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1987 * from prandom_u32() are taken as the random random number generated.
1989 * Returns true when outcome is for the newly read FCF record should be
1990 * chosen; otherwise, return false when outcome is for keeping the previously
1991 * chosen FCF record.
1994 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
1998 /* Get 16-bit uniform random number */
1999 rand_num = 0xFFFF & prandom_u32();
2001 /* Decision with probability 1/fcf_cnt */
2002 if ((fcf_cnt * rand_num) < 0xFFFF)
2009 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
2010 * @phba: pointer to lpfc hba data structure.
2011 * @mboxq: pointer to mailbox object.
2012 * @next_fcf_index: pointer to holder of next fcf index.
2014 * This routine parses the non-embedded fcf mailbox command by performing the
2015 * necessarily error checking, non-embedded read FCF record mailbox command
2016 * SGE parsing, and endianness swapping.
2018 * Returns the pointer to the new FCF record in the non-embedded mailbox
2019 * command DMA memory if successfully, other NULL.
2021 static struct fcf_record *
2022 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
2023 uint16_t *next_fcf_index)
2026 struct lpfc_mbx_sge sge;
2027 struct lpfc_mbx_read_fcf_tbl *read_fcf;
2028 uint32_t shdr_status, shdr_add_status, if_type;
2029 union lpfc_sli4_cfg_shdr *shdr;
2030 struct fcf_record *new_fcf_record;
2032 /* Get the first SGE entry from the non-embedded DMA memory. This
2033 * routine only uses a single SGE.
2035 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
2036 if (unlikely(!mboxq->sge_array)) {
2037 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2038 "2524 Failed to get the non-embedded SGE "
2039 "virtual address\n");
2042 virt_addr = mboxq->sge_array->addr[0];
2044 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
2045 lpfc_sli_pcimem_bcopy(shdr, shdr,
2046 sizeof(union lpfc_sli4_cfg_shdr));
2047 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
2048 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
2049 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
2050 if (shdr_status || shdr_add_status) {
2051 if (shdr_status == STATUS_FCF_TABLE_EMPTY ||
2052 if_type == LPFC_SLI_INTF_IF_TYPE_2)
2053 lpfc_printf_log(phba, KERN_ERR,
2055 "2726 READ_FCF_RECORD Indicates empty "
2058 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2059 "2521 READ_FCF_RECORD mailbox failed "
2060 "with status x%x add_status x%x, "
2061 "mbx\n", shdr_status, shdr_add_status);
2065 /* Interpreting the returned information of the FCF record */
2066 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
2067 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
2068 sizeof(struct lpfc_mbx_read_fcf_tbl));
2069 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
2070 new_fcf_record = (struct fcf_record *)(virt_addr +
2071 sizeof(struct lpfc_mbx_read_fcf_tbl));
2072 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
2073 offsetof(struct fcf_record, vlan_bitmap));
2074 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
2075 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
2077 return new_fcf_record;
2081 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
2082 * @phba: pointer to lpfc hba data structure.
2083 * @fcf_record: pointer to the fcf record.
2084 * @vlan_id: the lowest vlan identifier associated to this fcf record.
2085 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
2087 * This routine logs the detailed FCF record if the LOG_FIP loggin is
2091 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
2092 struct fcf_record *fcf_record,
2094 uint16_t next_fcf_index)
2096 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2097 "2764 READ_FCF_RECORD:\n"
2098 "\tFCF_Index : x%x\n"
2099 "\tFCF_Avail : x%x\n"
2100 "\tFCF_Valid : x%x\n"
2102 "\tFIP_Priority : x%x\n"
2103 "\tMAC_Provider : x%x\n"
2104 "\tLowest VLANID : x%x\n"
2105 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
2106 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
2107 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
2108 "\tNext_FCF_Index: x%x\n",
2109 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
2110 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
2111 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
2112 bf_get(lpfc_fcf_record_fcf_sol, fcf_record),
2113 fcf_record->fip_priority,
2114 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
2116 bf_get(lpfc_fcf_record_mac_0, fcf_record),
2117 bf_get(lpfc_fcf_record_mac_1, fcf_record),
2118 bf_get(lpfc_fcf_record_mac_2, fcf_record),
2119 bf_get(lpfc_fcf_record_mac_3, fcf_record),
2120 bf_get(lpfc_fcf_record_mac_4, fcf_record),
2121 bf_get(lpfc_fcf_record_mac_5, fcf_record),
2122 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
2123 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
2124 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
2125 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
2126 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
2127 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
2128 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
2129 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
2130 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
2131 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
2132 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
2133 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
2134 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
2135 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
2136 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
2137 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
2142 * lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
2143 * @phba: pointer to lpfc hba data structure.
2144 * @fcf_rec: pointer to an existing FCF record.
2145 * @new_fcf_record: pointer to a new FCF record.
2146 * @new_vlan_id: vlan id from the new FCF record.
2148 * This function performs matching test of a new FCF record against an existing
2149 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
2150 * will not be used as part of the FCF record matching criteria.
2152 * Returns true if all the fields matching, otherwise returns false.
2155 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
2156 struct lpfc_fcf_rec *fcf_rec,
2157 struct fcf_record *new_fcf_record,
2158 uint16_t new_vlan_id)
2160 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
2161 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
2163 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
2165 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
2167 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
2169 if (fcf_rec->priority != new_fcf_record->fip_priority)
2175 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
2176 * @vport: Pointer to vport object.
2177 * @fcf_index: index to next fcf.
2179 * This function processing the roundrobin fcf failover to next fcf index.
2180 * When this function is invoked, there will be a current fcf registered
2182 * Return: 0 for continue retrying flogi on currently registered fcf;
2183 * 1 for stop flogi on currently registered fcf;
2185 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
2187 struct lpfc_hba *phba = vport->phba;
2190 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
2191 spin_lock_irq(&phba->hbalock);
2192 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2193 spin_unlock_irq(&phba->hbalock);
2194 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2195 "2872 Devloss tmo with no eligible "
2196 "FCF, unregister in-use FCF (x%x) "
2197 "and rescan FCF table\n",
2198 phba->fcf.current_rec.fcf_indx);
2199 lpfc_unregister_fcf_rescan(phba);
2200 goto stop_flogi_current_fcf;
2202 /* Mark the end to FLOGI roundrobin failover */
2203 phba->hba_flag &= ~FCF_RR_INPROG;
2204 /* Allow action to new fcf asynchronous event */
2205 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2206 spin_unlock_irq(&phba->hbalock);
2207 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2208 "2865 No FCF available, stop roundrobin FCF "
2209 "failover and change port state:x%x/x%x\n",
2210 phba->pport->port_state, LPFC_VPORT_UNKNOWN);
2211 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
2213 if (!phba->fcf.fcf_redisc_attempted) {
2214 lpfc_unregister_fcf(phba);
2216 rc = lpfc_sli4_redisc_fcf_table(phba);
2218 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2219 "3195 Rediscover FCF table\n");
2220 phba->fcf.fcf_redisc_attempted = 1;
2221 lpfc_sli4_clear_fcf_rr_bmask(phba);
2223 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2224 "3196 Rediscover FCF table "
2225 "failed. Status:x%x\n", rc);
2228 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2229 "3197 Already rediscover FCF table "
2230 "attempted. No more retry\n");
2232 goto stop_flogi_current_fcf;
2234 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
2235 "2794 Try FLOGI roundrobin FCF failover to "
2236 "(x%x)\n", fcf_index);
2237 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
2239 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
2240 "2761 FLOGI roundrobin FCF failover "
2241 "failed (rc:x%x) to read FCF (x%x)\n",
2242 rc, phba->fcf.current_rec.fcf_indx);
2244 goto stop_flogi_current_fcf;
2248 stop_flogi_current_fcf:
2249 lpfc_can_disctmo(vport);
2254 * lpfc_sli4_fcf_pri_list_del
2255 * @phba: pointer to lpfc hba data structure.
2256 * @fcf_index: the index of the fcf record to delete
2257 * This routine checks the on list flag of the fcf_index to be deleted.
2258 * If it is one the list then it is removed from the list, and the flag
2259 * is cleared. This routine grab the hbalock before removing the fcf
2260 * record from the list.
2262 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
2265 struct lpfc_fcf_pri *new_fcf_pri;
2267 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2268 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2269 "3058 deleting idx x%x pri x%x flg x%x\n",
2270 fcf_index, new_fcf_pri->fcf_rec.priority,
2271 new_fcf_pri->fcf_rec.flag);
2272 spin_lock_irq(&phba->hbalock);
2273 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
2274 if (phba->fcf.current_rec.priority ==
2275 new_fcf_pri->fcf_rec.priority)
2276 phba->fcf.eligible_fcf_cnt--;
2277 list_del_init(&new_fcf_pri->list);
2278 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
2280 spin_unlock_irq(&phba->hbalock);
2284 * lpfc_sli4_set_fcf_flogi_fail
2285 * @phba: pointer to lpfc hba data structure.
2286 * @fcf_index: the index of the fcf record to update
2287 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2288 * flag so the the round robin slection for the particular priority level
2289 * will try a different fcf record that does not have this bit set.
2290 * If the fcf record is re-read for any reason this flag is cleared brfore
2291 * adding it to the priority list.
2294 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
2296 struct lpfc_fcf_pri *new_fcf_pri;
2297 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2298 spin_lock_irq(&phba->hbalock);
2299 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
2300 spin_unlock_irq(&phba->hbalock);
2304 * lpfc_sli4_fcf_pri_list_add
2305 * @phba: pointer to lpfc hba data structure.
2306 * @fcf_index: the index of the fcf record to add
2307 * @new_fcf_record: pointer to a new FCF record.
2308 * This routine checks the priority of the fcf_index to be added.
2309 * If it is a lower priority than the current head of the fcf_pri list
2310 * then it is added to the list in the right order.
2311 * If it is the same priority as the current head of the list then it
2312 * is added to the head of the list and its bit in the rr_bmask is set.
2313 * If the fcf_index to be added is of a higher priority than the current
2314 * head of the list then the rr_bmask is cleared, its bit is set in the
2315 * rr_bmask and it is added to the head of the list.
2317 * 0=success 1=failure
2319 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba,
2321 struct fcf_record *new_fcf_record)
2323 uint16_t current_fcf_pri;
2324 uint16_t last_index;
2325 struct lpfc_fcf_pri *fcf_pri;
2326 struct lpfc_fcf_pri *next_fcf_pri;
2327 struct lpfc_fcf_pri *new_fcf_pri;
2330 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2331 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2332 "3059 adding idx x%x pri x%x flg x%x\n",
2333 fcf_index, new_fcf_record->fip_priority,
2334 new_fcf_pri->fcf_rec.flag);
2335 spin_lock_irq(&phba->hbalock);
2336 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
2337 list_del_init(&new_fcf_pri->list);
2338 new_fcf_pri->fcf_rec.fcf_index = fcf_index;
2339 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
2340 if (list_empty(&phba->fcf.fcf_pri_list)) {
2341 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2342 ret = lpfc_sli4_fcf_rr_index_set(phba,
2343 new_fcf_pri->fcf_rec.fcf_index);
2347 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
2348 LPFC_SLI4_FCF_TBL_INDX_MAX);
2349 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
2350 ret = 0; /* Empty rr list */
2353 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
2354 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
2355 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2356 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
2357 memset(phba->fcf.fcf_rr_bmask, 0,
2358 sizeof(*phba->fcf.fcf_rr_bmask));
2359 /* fcfs_at_this_priority_level = 1; */
2360 phba->fcf.eligible_fcf_cnt = 1;
2362 /* fcfs_at_this_priority_level++; */
2363 phba->fcf.eligible_fcf_cnt++;
2364 ret = lpfc_sli4_fcf_rr_index_set(phba,
2365 new_fcf_pri->fcf_rec.fcf_index);
2369 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
2370 &phba->fcf.fcf_pri_list, list) {
2371 if (new_fcf_pri->fcf_rec.priority <=
2372 fcf_pri->fcf_rec.priority) {
2373 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
2374 list_add(&new_fcf_pri->list,
2375 &phba->fcf.fcf_pri_list);
2377 list_add(&new_fcf_pri->list,
2378 &((struct lpfc_fcf_pri *)
2379 fcf_pri->list.prev)->list);
2382 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
2383 || new_fcf_pri->fcf_rec.priority <
2384 next_fcf_pri->fcf_rec.priority) {
2385 list_add(&new_fcf_pri->list, &fcf_pri->list);
2389 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
2395 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2396 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
2397 spin_unlock_irq(&phba->hbalock);
2402 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2403 * @phba: pointer to lpfc hba data structure.
2404 * @mboxq: pointer to mailbox object.
2406 * This function iterates through all the fcf records available in
2407 * HBA and chooses the optimal FCF record for discovery. After finding
2408 * the FCF for discovery it registers the FCF record and kicks start
2410 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2411 * use an FCF record which matches fabric name and mac address of the
2412 * currently used FCF record.
2413 * If the driver supports only one FCF, it will try to use the FCF record
2414 * used by BOOT_BIOS.
2417 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2419 struct fcf_record *new_fcf_record;
2420 uint32_t boot_flag, addr_mode;
2421 uint16_t fcf_index, next_fcf_index;
2422 struct lpfc_fcf_rec *fcf_rec = NULL;
2423 uint16_t vlan_id = LPFC_FCOE_NULL_VID;
2424 bool select_new_fcf;
2427 /* If there is pending FCoE event restart FCF table scan */
2428 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
2429 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2433 /* Parse the FCF record from the non-embedded mailbox command */
2434 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2436 if (!new_fcf_record) {
2437 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2438 "2765 Mailbox command READ_FCF_RECORD "
2439 "failed to retrieve a FCF record.\n");
2440 /* Let next new FCF event trigger fast failover */
2441 spin_lock_irq(&phba->hbalock);
2442 phba->hba_flag &= ~FCF_TS_INPROG;
2443 spin_unlock_irq(&phba->hbalock);
2444 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2448 /* Check the FCF record against the connection list */
2449 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2450 &addr_mode, &vlan_id);
2452 /* Log the FCF record information if turned on */
2453 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2457 * If the fcf record does not match with connect list entries
2458 * read the next entry; otherwise, this is an eligible FCF
2459 * record for roundrobin FCF failover.
2462 lpfc_sli4_fcf_pri_list_del(phba,
2463 bf_get(lpfc_fcf_record_fcf_index,
2465 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2466 "2781 FCF (x%x) failed connection "
2467 "list check: (x%x/x%x/%x)\n",
2468 bf_get(lpfc_fcf_record_fcf_index,
2470 bf_get(lpfc_fcf_record_fcf_avail,
2472 bf_get(lpfc_fcf_record_fcf_valid,
2474 bf_get(lpfc_fcf_record_fcf_sol,
2476 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
2477 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2478 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
2479 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
2480 phba->fcf.current_rec.fcf_indx) {
2481 lpfc_printf_log(phba, KERN_ERR,
2483 "2862 FCF (x%x) matches property "
2484 "of in-use FCF (x%x)\n",
2485 bf_get(lpfc_fcf_record_fcf_index,
2487 phba->fcf.current_rec.fcf_indx);
2491 * In case the current in-use FCF record becomes
2492 * invalid/unavailable during FCF discovery that
2493 * was not triggered by fast FCF failover process,
2494 * treat it as fast FCF failover.
2496 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
2497 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2498 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2499 "2835 Invalid in-use FCF "
2500 "(x%x), enter FCF failover "
2502 phba->fcf.current_rec.fcf_indx);
2503 spin_lock_irq(&phba->hbalock);
2504 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2505 spin_unlock_irq(&phba->hbalock);
2506 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2507 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2508 LPFC_FCOE_FCF_GET_FIRST);
2514 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2515 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
2522 * If this is not the first FCF discovery of the HBA, use last
2523 * FCF record for the discovery. The condition that a rescan
2524 * matches the in-use FCF record: fabric name, switch name, mac
2525 * address, and vlan_id.
2527 spin_lock_irq(&phba->hbalock);
2528 if (phba->fcf.fcf_flag & FCF_IN_USE) {
2529 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2530 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2531 new_fcf_record, vlan_id)) {
2532 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
2533 phba->fcf.current_rec.fcf_indx) {
2534 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2535 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
2536 /* Stop FCF redisc wait timer */
2537 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2539 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2540 /* Fast failover, mark completed */
2541 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2542 spin_unlock_irq(&phba->hbalock);
2543 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2544 "2836 New FCF matches in-use "
2545 "FCF (x%x), port_state:x%x, "
2547 phba->fcf.current_rec.fcf_indx,
2548 phba->pport->port_state,
2549 phba->pport->fc_flag);
2552 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2553 "2863 New FCF (x%x) matches "
2554 "property of in-use FCF (x%x)\n",
2555 bf_get(lpfc_fcf_record_fcf_index,
2557 phba->fcf.current_rec.fcf_indx);
2560 * Read next FCF record from HBA searching for the matching
2561 * with in-use record only if not during the fast failover
2562 * period. In case of fast failover period, it shall try to
2563 * determine whether the FCF record just read should be the
2566 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2567 spin_unlock_irq(&phba->hbalock);
2572 * Update on failover FCF record only if it's in FCF fast-failover
2573 * period; otherwise, update on current FCF record.
2575 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2576 fcf_rec = &phba->fcf.failover_rec;
2578 fcf_rec = &phba->fcf.current_rec;
2580 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
2582 * If the driver FCF record does not have boot flag
2583 * set and new hba fcf record has boot flag set, use
2584 * the new hba fcf record.
2586 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
2587 /* Choose this FCF record */
2588 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2589 "2837 Update current FCF record "
2590 "(x%x) with new FCF record (x%x)\n",
2592 bf_get(lpfc_fcf_record_fcf_index,
2594 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2595 addr_mode, vlan_id, BOOT_ENABLE);
2596 spin_unlock_irq(&phba->hbalock);
2600 * If the driver FCF record has boot flag set and the
2601 * new hba FCF record does not have boot flag, read
2602 * the next FCF record.
2604 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
2605 spin_unlock_irq(&phba->hbalock);
2609 * If the new hba FCF record has lower priority value
2610 * than the driver FCF record, use the new record.
2612 if (new_fcf_record->fip_priority < fcf_rec->priority) {
2613 /* Choose the new FCF record with lower priority */
2614 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2615 "2838 Update current FCF record "
2616 "(x%x) with new FCF record (x%x)\n",
2618 bf_get(lpfc_fcf_record_fcf_index,
2620 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2621 addr_mode, vlan_id, 0);
2622 /* Reset running random FCF selection count */
2623 phba->fcf.eligible_fcf_cnt = 1;
2624 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
2625 /* Update running random FCF selection count */
2626 phba->fcf.eligible_fcf_cnt++;
2627 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
2628 phba->fcf.eligible_fcf_cnt);
2629 if (select_new_fcf) {
2630 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2631 "2839 Update current FCF record "
2632 "(x%x) with new FCF record (x%x)\n",
2634 bf_get(lpfc_fcf_record_fcf_index,
2636 /* Choose the new FCF by random selection */
2637 __lpfc_update_fcf_record(phba, fcf_rec,
2639 addr_mode, vlan_id, 0);
2642 spin_unlock_irq(&phba->hbalock);
2646 * This is the first suitable FCF record, choose this record for
2647 * initial best-fit FCF.
2650 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2651 "2840 Update initial FCF candidate "
2653 bf_get(lpfc_fcf_record_fcf_index,
2655 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2656 addr_mode, vlan_id, (boot_flag ?
2658 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2659 /* Setup initial running random FCF selection count */
2660 phba->fcf.eligible_fcf_cnt = 1;
2662 spin_unlock_irq(&phba->hbalock);
2666 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2667 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
2668 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
2670 * Case of FCF fast failover scan
2674 * It has not found any suitable FCF record, cancel
2675 * FCF scan inprogress, and do nothing
2677 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
2678 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2679 "2782 No suitable FCF found: "
2681 phba->fcoe_eventtag_at_fcf_scan,
2682 bf_get(lpfc_fcf_record_fcf_index,
2684 spin_lock_irq(&phba->hbalock);
2685 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2686 phba->hba_flag &= ~FCF_TS_INPROG;
2687 spin_unlock_irq(&phba->hbalock);
2688 /* Unregister in-use FCF and rescan */
2689 lpfc_printf_log(phba, KERN_INFO,
2691 "2864 On devloss tmo "
2692 "unreg in-use FCF and "
2693 "rescan FCF table\n");
2694 lpfc_unregister_fcf_rescan(phba);
2698 * Let next new FCF event trigger fast failover
2700 phba->hba_flag &= ~FCF_TS_INPROG;
2701 spin_unlock_irq(&phba->hbalock);
2705 * It has found a suitable FCF record that is not
2706 * the same as in-use FCF record, unregister the
2707 * in-use FCF record, replace the in-use FCF record
2708 * with the new FCF record, mark FCF fast failover
2709 * completed, and then start register the new FCF
2713 /* Unregister the current in-use FCF record */
2714 lpfc_unregister_fcf(phba);
2716 /* Replace in-use record with the new record */
2717 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2718 "2842 Replace in-use FCF (x%x) "
2719 "with failover FCF (x%x)\n",
2720 phba->fcf.current_rec.fcf_indx,
2721 phba->fcf.failover_rec.fcf_indx);
2722 memcpy(&phba->fcf.current_rec,
2723 &phba->fcf.failover_rec,
2724 sizeof(struct lpfc_fcf_rec));
2726 * Mark the fast FCF failover rediscovery completed
2727 * and the start of the first round of the roundrobin
2730 spin_lock_irq(&phba->hbalock);
2731 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2732 spin_unlock_irq(&phba->hbalock);
2733 /* Register to the new FCF record */
2734 lpfc_register_fcf(phba);
2737 * In case of transaction period to fast FCF failover,
2738 * do nothing when search to the end of the FCF table.
2740 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
2741 (phba->fcf.fcf_flag & FCF_REDISC_PEND))
2744 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2745 phba->fcf.fcf_flag & FCF_IN_USE) {
2747 * In case the current in-use FCF record no
2748 * longer existed during FCF discovery that
2749 * was not triggered by fast FCF failover
2750 * process, treat it as fast FCF failover.
2752 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2753 "2841 In-use FCF record (x%x) "
2754 "not reported, entering fast "
2755 "FCF failover mode scanning.\n",
2756 phba->fcf.current_rec.fcf_indx);
2757 spin_lock_irq(&phba->hbalock);
2758 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2759 spin_unlock_irq(&phba->hbalock);
2760 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2761 LPFC_FCOE_FCF_GET_FIRST);
2764 /* Register to the new FCF record */
2765 lpfc_register_fcf(phba);
2768 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
2772 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2773 lpfc_register_fcf(phba);
2779 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2780 * @phba: pointer to lpfc hba data structure.
2781 * @mboxq: pointer to mailbox object.
2783 * This is the callback function for FLOGI failure roundrobin FCF failover
2784 * read FCF record mailbox command from the eligible FCF record bmask for
2785 * performing the failover. If the FCF read back is not valid/available, it
2786 * fails through to retrying FLOGI to the currently registered FCF again.
2787 * Otherwise, if the FCF read back is valid and available, it will set the
2788 * newly read FCF record to the failover FCF record, unregister currently
2789 * registered FCF record, copy the failover FCF record to the current
2790 * FCF record, and then register the current FCF record before proceeding
2791 * to trying FLOGI on the new failover FCF.
2794 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2796 struct fcf_record *new_fcf_record;
2797 uint32_t boot_flag, addr_mode;
2798 uint16_t next_fcf_index, fcf_index;
2799 uint16_t current_fcf_index;
2803 /* If link state is not up, stop the roundrobin failover process */
2804 if (phba->link_state < LPFC_LINK_UP) {
2805 spin_lock_irq(&phba->hbalock);
2806 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
2807 phba->hba_flag &= ~FCF_RR_INPROG;
2808 spin_unlock_irq(&phba->hbalock);
2812 /* Parse the FCF record from the non-embedded mailbox command */
2813 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2815 if (!new_fcf_record) {
2816 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2817 "2766 Mailbox command READ_FCF_RECORD "
2818 "failed to retrieve a FCF record. "
2819 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag,
2820 phba->fcf.fcf_flag);
2821 lpfc_unregister_fcf_rescan(phba);
2825 /* Get the needed parameters from FCF record */
2826 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2827 &addr_mode, &vlan_id);
2829 /* Log the FCF record information if turned on */
2830 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2833 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2835 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2836 "2848 Remove ineligible FCF (x%x) from "
2837 "from roundrobin bmask\n", fcf_index);
2838 /* Clear roundrobin bmask bit for ineligible FCF */
2839 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
2840 /* Perform next round of roundrobin FCF failover */
2841 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
2842 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
2848 if (fcf_index == phba->fcf.current_rec.fcf_indx) {
2849 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2850 "2760 Perform FLOGI roundrobin FCF failover: "
2851 "FCF (x%x) back to FCF (x%x)\n",
2852 phba->fcf.current_rec.fcf_indx, fcf_index);
2853 /* Wait 500 ms before retrying FLOGI to current FCF */
2855 lpfc_issue_init_vfi(phba->pport);
2859 /* Upload new FCF record to the failover FCF record */
2860 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2861 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2862 phba->fcf.failover_rec.fcf_indx, fcf_index);
2863 spin_lock_irq(&phba->hbalock);
2864 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2865 new_fcf_record, addr_mode, vlan_id,
2866 (boot_flag ? BOOT_ENABLE : 0));
2867 spin_unlock_irq(&phba->hbalock);
2869 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2871 /* Unregister the current in-use FCF record */
2872 lpfc_unregister_fcf(phba);
2874 /* Replace in-use record with the new record */
2875 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2876 sizeof(struct lpfc_fcf_rec));
2878 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2879 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2880 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
2883 lpfc_register_fcf(phba);
2885 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2889 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2890 * @phba: pointer to lpfc hba data structure.
2891 * @mboxq: pointer to mailbox object.
2893 * This is the callback function of read FCF record mailbox command for
2894 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
2895 * failover when a new FCF event happened. If the FCF read back is
2896 * valid/available and it passes the connection list check, it updates
2897 * the bmask for the eligible FCF record for roundrobin failover.
2900 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2902 struct fcf_record *new_fcf_record;
2903 uint32_t boot_flag, addr_mode;
2904 uint16_t fcf_index, next_fcf_index;
2908 /* If link state is not up, no need to proceed */
2909 if (phba->link_state < LPFC_LINK_UP)
2912 /* If FCF discovery period is over, no need to proceed */
2913 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
2916 /* Parse the FCF record from the non-embedded mailbox command */
2917 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2919 if (!new_fcf_record) {
2920 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2921 "2767 Mailbox command READ_FCF_RECORD "
2922 "failed to retrieve a FCF record.\n");
2926 /* Check the connection list for eligibility */
2927 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2928 &addr_mode, &vlan_id);
2930 /* Log the FCF record information if turned on */
2931 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2937 /* Update the eligible FCF record index bmask */
2938 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2940 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
2943 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2947 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2948 * @phba: pointer to lpfc hba data structure.
2949 * @mboxq: pointer to mailbox data structure.
2951 * This function handles completion of init vfi mailbox command.
2954 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2956 struct lpfc_vport *vport = mboxq->vport;
2959 * VFI not supported on interface type 0, just do the flogi
2960 * Also continue if the VFI is in use - just use the same one.
2962 if (mboxq->u.mb.mbxStatus &&
2963 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2964 LPFC_SLI_INTF_IF_TYPE_0) &&
2965 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2966 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
2967 "2891 Init VFI mailbox failed 0x%x\n",
2968 mboxq->u.mb.mbxStatus);
2969 mempool_free(mboxq, phba->mbox_mem_pool);
2970 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2974 lpfc_initial_flogi(vport);
2975 mempool_free(mboxq, phba->mbox_mem_pool);
2980 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2981 * @vport: pointer to lpfc_vport data structure.
2983 * This function issue a init_vfi mailbox command to initialize the VFI and
2984 * VPI for the physical port.
2987 lpfc_issue_init_vfi(struct lpfc_vport *vport)
2989 LPFC_MBOXQ_t *mboxq;
2991 struct lpfc_hba *phba = vport->phba;
2993 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2995 lpfc_printf_vlog(vport, KERN_ERR,
2996 LOG_TRACE_EVENT, "2892 Failed to allocate "
2997 "init_vfi mailbox\n");
3000 lpfc_init_vfi(mboxq, vport);
3001 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
3002 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
3003 if (rc == MBX_NOT_FINISHED) {
3004 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3005 "2893 Failed to issue init_vfi mailbox\n");
3006 mempool_free(mboxq, vport->phba->mbox_mem_pool);
3011 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
3012 * @phba: pointer to lpfc hba data structure.
3013 * @mboxq: pointer to mailbox data structure.
3015 * This function handles completion of init vpi mailbox command.
3018 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
3020 struct lpfc_vport *vport = mboxq->vport;
3021 struct lpfc_nodelist *ndlp;
3022 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3024 if (mboxq->u.mb.mbxStatus) {
3025 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3026 "2609 Init VPI mailbox failed 0x%x\n",
3027 mboxq->u.mb.mbxStatus);
3028 mempool_free(mboxq, phba->mbox_mem_pool);
3029 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3032 spin_lock_irq(shost->host_lock);
3033 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
3034 spin_unlock_irq(shost->host_lock);
3036 /* If this port is physical port or FDISC is done, do reg_vpi */
3037 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
3038 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3040 lpfc_printf_vlog(vport, KERN_ERR,
3042 "2731 Cannot find fabric "
3043 "controller node\n");
3045 lpfc_register_new_vport(phba, vport, ndlp);
3046 mempool_free(mboxq, phba->mbox_mem_pool);
3050 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
3051 lpfc_initial_fdisc(vport);
3053 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
3054 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3055 "2606 No NPIV Fabric support\n");
3057 mempool_free(mboxq, phba->mbox_mem_pool);
3062 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
3063 * @vport: pointer to lpfc_vport data structure.
3065 * This function issue a init_vpi mailbox command to initialize
3066 * VPI for the vport.
3069 lpfc_issue_init_vpi(struct lpfc_vport *vport)
3071 LPFC_MBOXQ_t *mboxq;
3074 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {
3075 vpi = lpfc_alloc_vpi(vport->phba);
3077 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3078 "3303 Failed to obtain vport vpi\n");
3079 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3085 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
3087 lpfc_printf_vlog(vport, KERN_ERR,
3088 LOG_TRACE_EVENT, "2607 Failed to allocate "
3089 "init_vpi mailbox\n");
3092 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
3093 mboxq->vport = vport;
3094 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
3095 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
3096 if (rc == MBX_NOT_FINISHED) {
3097 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3098 "2608 Failed to issue init_vpi mailbox\n");
3099 mempool_free(mboxq, vport->phba->mbox_mem_pool);
3104 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
3105 * @phba: pointer to lpfc hba data structure.
3107 * This function loops through the list of vports on the @phba and issues an
3108 * FDISC if possible.
3111 lpfc_start_fdiscs(struct lpfc_hba *phba)
3113 struct lpfc_vport **vports;
3116 vports = lpfc_create_vport_work_array(phba);
3117 if (vports != NULL) {
3118 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3119 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
3121 /* There are no vpi for this vport */
3122 if (vports[i]->vpi > phba->max_vpi) {
3123 lpfc_vport_set_state(vports[i],
3127 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3128 lpfc_vport_set_state(vports[i],
3132 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
3133 lpfc_issue_init_vpi(vports[i]);
3136 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
3137 lpfc_initial_fdisc(vports[i]);
3139 lpfc_vport_set_state(vports[i],
3140 FC_VPORT_NO_FABRIC_SUPP);
3141 lpfc_printf_vlog(vports[i], KERN_ERR,
3144 "Fabric support\n");
3148 lpfc_destroy_vport_work_array(phba, vports);
3152 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
3154 struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf;
3155 struct lpfc_vport *vport = mboxq->vport;
3156 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3159 * VFI not supported for interface type 0, so ignore any mailbox
3160 * error (except VFI in use) and continue with the discovery.
3162 if (mboxq->u.mb.mbxStatus &&
3163 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3164 LPFC_SLI_INTF_IF_TYPE_0) &&
3165 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
3166 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3167 "2018 REG_VFI mbxStatus error x%x "
3169 mboxq->u.mb.mbxStatus, vport->port_state);
3170 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3171 /* FLOGI failed, use loop map to make discovery list */
3172 lpfc_disc_list_loopmap(vport);
3173 /* Start discovery */
3174 lpfc_disc_start(vport);
3177 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3181 /* If the VFI is already registered, there is nothing else to do
3182 * Unless this was a VFI update and we are in PT2PT mode, then
3183 * we should drop through to set the port state to ready.
3185 if (vport->fc_flag & FC_VFI_REGISTERED)
3186 if (!(phba->sli_rev == LPFC_SLI_REV4 &&
3187 vport->fc_flag & FC_PT2PT))
3190 /* The VPI is implicitly registered when the VFI is registered */
3191 spin_lock_irq(shost->host_lock);
3192 vport->vpi_state |= LPFC_VPI_REGISTERED;
3193 vport->fc_flag |= FC_VFI_REGISTERED;
3194 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
3195 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
3196 spin_unlock_irq(shost->host_lock);
3198 /* In case SLI4 FC loopback test, we are ready */
3199 if ((phba->sli_rev == LPFC_SLI_REV4) &&
3200 (phba->link_flag & LS_LOOPBACK_MODE)) {
3201 phba->link_state = LPFC_HBA_READY;
3205 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3206 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
3207 "alpacnt:%d LinkState:%x topology:%x\n",
3208 vport->port_state, vport->fc_flag, vport->fc_myDID,
3209 vport->phba->alpa_map[0],
3210 phba->link_state, phba->fc_topology);
3212 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3214 * For private loop or for NPort pt2pt,
3215 * just start discovery and we are done.
3217 if ((vport->fc_flag & FC_PT2PT) ||
3218 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
3219 !(vport->fc_flag & FC_PUBLIC_LOOP))) {
3221 /* Use loop map to make discovery list */
3222 lpfc_disc_list_loopmap(vport);
3223 /* Start discovery */
3224 if (vport->fc_flag & FC_PT2PT)
3225 vport->port_state = LPFC_VPORT_READY;
3227 lpfc_disc_start(vport);
3229 lpfc_start_fdiscs(phba);
3230 lpfc_do_scr_ns_plogi(phba, vport);
3235 mempool_free(mboxq, phba->mbox_mem_pool);
3237 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
3244 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3246 MAILBOX_t *mb = &pmb->u.mb;
3247 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
3248 struct lpfc_vport *vport = pmb->vport;
3249 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3250 struct serv_parm *sp = &vport->fc_sparam;
3253 /* Check for error */
3254 if (mb->mbxStatus) {
3255 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
3256 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3257 "0319 READ_SPARAM mbxStatus error x%x "
3259 mb->mbxStatus, vport->port_state);
3260 lpfc_linkdown(phba);
3264 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
3265 sizeof (struct serv_parm));
3267 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
3268 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
3269 ed_tov = (ed_tov + 999999) / 1000000;
3271 phba->fc_edtov = ed_tov;
3272 phba->fc_ratov = (2 * ed_tov) / 1000;
3273 if (phba->fc_ratov < FF_DEF_RATOV) {
3274 /* RA_TOV should be atleast 10sec for initial flogi */
3275 phba->fc_ratov = FF_DEF_RATOV;
3278 lpfc_update_vport_wwn(vport);
3279 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3280 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3281 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
3282 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
3285 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3287 mempool_free(pmb, phba->mbox_mem_pool);
3289 /* Check if sending the FLOGI is being deferred to after we get
3290 * up to date CSPs from MBX_READ_SPARAM.
3292 if (phba->hba_flag & HBA_DEFER_FLOGI) {
3293 lpfc_initial_flogi(vport);
3294 phba->hba_flag &= ~HBA_DEFER_FLOGI;
3299 pmb->ctx_buf = NULL;
3300 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3302 lpfc_issue_clear_la(phba, vport);
3303 mempool_free(pmb, phba->mbox_mem_pool);
3308 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
3310 struct lpfc_vport *vport = phba->pport;
3311 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
3312 struct Scsi_Host *shost;
3314 struct lpfc_dmabuf *mp;
3316 struct fcf_record *fcf_record;
3317 uint32_t fc_flags = 0;
3318 unsigned long iflags;
3320 spin_lock_irqsave(&phba->hbalock, iflags);
3321 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
3323 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3324 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
3325 case LPFC_LINK_SPEED_1GHZ:
3326 case LPFC_LINK_SPEED_2GHZ:
3327 case LPFC_LINK_SPEED_4GHZ:
3328 case LPFC_LINK_SPEED_8GHZ:
3329 case LPFC_LINK_SPEED_10GHZ:
3330 case LPFC_LINK_SPEED_16GHZ:
3331 case LPFC_LINK_SPEED_32GHZ:
3332 case LPFC_LINK_SPEED_64GHZ:
3333 case LPFC_LINK_SPEED_128GHZ:
3336 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
3341 if (phba->fc_topology &&
3342 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {
3343 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3344 "3314 Toplogy changed was 0x%x is 0x%x\n",
3346 bf_get(lpfc_mbx_read_top_topology, la));
3347 phba->fc_topology_changed = 1;
3350 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
3351 phba->link_flag &= ~(LS_NPIV_FAB_SUPPORTED | LS_CT_VEN_RPA);
3353 shost = lpfc_shost_from_vport(vport);
3354 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3355 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
3357 /* if npiv is enabled and this adapter supports npiv log
3358 * a message that npiv is not supported in this topology
3360 if (phba->cfg_enable_npiv && phba->max_vpi)
3361 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3362 "1309 Link Up Event npiv not supported in loop "
3364 /* Get Loop Map information */
3365 if (bf_get(lpfc_mbx_read_top_il, la))
3366 fc_flags |= FC_LBIT;
3368 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
3369 i = la->lilpBde64.tus.f.bdeSize;
3372 phba->alpa_map[0] = 0;
3374 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
3385 numalpa = phba->alpa_map[0];
3387 while (j < numalpa) {
3388 memset(un.pamap, 0, 16);
3389 for (k = 1; j < numalpa; k++) {
3391 phba->alpa_map[j + 1];
3396 /* Link Up Event ALPA map */
3397 lpfc_printf_log(phba,
3400 "1304 Link Up Event "
3401 "ALPA map Data: x%x "
3403 un.pa.wd1, un.pa.wd2,
3404 un.pa.wd3, un.pa.wd4);
3409 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
3410 if (phba->max_vpi && phba->cfg_enable_npiv &&
3411 (phba->sli_rev >= LPFC_SLI_REV3))
3412 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3414 vport->fc_myDID = phba->fc_pref_DID;
3415 fc_flags |= FC_LBIT;
3417 spin_unlock_irqrestore(&phba->hbalock, iflags);
3420 spin_lock_irqsave(shost->host_lock, iflags);
3421 vport->fc_flag |= fc_flags;
3422 spin_unlock_irqrestore(shost->host_lock, iflags);
3428 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3432 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
3434 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3437 sparam_mbox->vport = vport;
3438 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
3439 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
3440 if (rc == MBX_NOT_FINISHED) {
3441 mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf;
3442 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3444 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3448 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3449 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3452 vport->port_state = LPFC_LOCAL_CFG_LINK;
3453 lpfc_config_link(phba, cfglink_mbox);
3454 cfglink_mbox->vport = vport;
3455 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
3456 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
3457 if (rc == MBX_NOT_FINISHED) {
3458 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
3462 vport->port_state = LPFC_VPORT_UNKNOWN;
3464 * Add the driver's default FCF record at FCF index 0 now. This
3465 * is phase 1 implementation that support FCF index 0 and driver
3468 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
3469 fcf_record = kzalloc(sizeof(struct fcf_record),
3471 if (unlikely(!fcf_record)) {
3472 lpfc_printf_log(phba, KERN_ERR,
3474 "2554 Could not allocate memory for "
3480 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
3481 LPFC_FCOE_FCF_DEF_INDEX);
3482 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
3484 lpfc_printf_log(phba, KERN_ERR,
3486 "2013 Could not manually add FCF "
3487 "record 0, status %d\n", rc);
3495 * The driver is expected to do FIP/FCF. Call the port
3496 * and get the FCF Table.
3498 spin_lock_irqsave(&phba->hbalock, iflags);
3499 if (phba->hba_flag & FCF_TS_INPROG) {
3500 spin_unlock_irqrestore(&phba->hbalock, iflags);
3503 /* This is the initial FCF discovery scan */
3504 phba->fcf.fcf_flag |= FCF_INIT_DISC;
3505 spin_unlock_irqrestore(&phba->hbalock, iflags);
3506 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3507 "2778 Start FCF table scan at linkup\n");
3508 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3509 LPFC_FCOE_FCF_GET_FIRST);
3511 spin_lock_irqsave(&phba->hbalock, iflags);
3512 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
3513 spin_unlock_irqrestore(&phba->hbalock, iflags);
3516 /* Reset FCF roundrobin bmask for new discovery */
3517 lpfc_sli4_clear_fcf_rr_bmask(phba);
3520 /* Prepare for LINK up registrations */
3521 memset(phba->os_host_name, 0, sizeof(phba->os_host_name));
3522 scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s",
3523 init_utsname()->nodename);
3526 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3527 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3528 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n",
3529 vport->port_state, sparam_mbox, cfglink_mbox);
3530 lpfc_issue_clear_la(phba, vport);
3535 lpfc_enable_la(struct lpfc_hba *phba)
3538 struct lpfc_sli *psli = &phba->sli;
3539 spin_lock_irq(&phba->hbalock);
3540 psli->sli_flag |= LPFC_PROCESS_LA;
3541 if (phba->sli_rev <= LPFC_SLI_REV3) {
3542 control = readl(phba->HCregaddr);
3543 control |= HC_LAINT_ENA;
3544 writel(control, phba->HCregaddr);
3545 readl(phba->HCregaddr); /* flush */
3547 spin_unlock_irq(&phba->hbalock);
3551 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
3553 lpfc_linkdown(phba);
3554 lpfc_enable_la(phba);
3555 lpfc_unregister_unused_fcf(phba);
3556 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3561 * This routine handles processing a READ_TOPOLOGY mailbox
3562 * command upon completion. It is setup in the LPFC_MBOXQ
3563 * as the completion routine when the command is
3564 * handed off to the SLI layer. SLI4 only.
3567 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3569 struct lpfc_vport *vport = pmb->vport;
3570 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3571 struct lpfc_mbx_read_top *la;
3572 struct lpfc_sli_ring *pring;
3573 MAILBOX_t *mb = &pmb->u.mb;
3574 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
3576 unsigned long iflags;
3578 /* Unblock ELS traffic */
3579 pring = lpfc_phba_elsring(phba);
3581 pring->flag &= ~LPFC_STOP_IOCB_EVENT;
3583 /* Check for error */
3584 if (mb->mbxStatus) {
3585 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3586 "1307 READ_LA mbox error x%x state x%x\n",
3587 mb->mbxStatus, vport->port_state);
3588 lpfc_mbx_issue_link_down(phba);
3589 phba->link_state = LPFC_HBA_ERROR;
3590 goto lpfc_mbx_cmpl_read_topology_free_mbuf;
3593 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3594 attn_type = bf_get(lpfc_mbx_read_top_att_type, la);
3596 memcpy(&phba->alpa_map[0], mp->virt, 128);
3598 spin_lock_irqsave(shost->host_lock, iflags);
3599 if (bf_get(lpfc_mbx_read_top_pb, la))
3600 vport->fc_flag |= FC_BYPASSED_MODE;
3602 vport->fc_flag &= ~FC_BYPASSED_MODE;
3603 spin_unlock_irqrestore(shost->host_lock, iflags);
3605 if (phba->fc_eventTag <= la->eventTag) {
3606 phba->fc_stat.LinkMultiEvent++;
3607 if (attn_type == LPFC_ATT_LINK_UP)
3608 if (phba->fc_eventTag != 0)
3609 lpfc_linkdown(phba);
3612 phba->fc_eventTag = la->eventTag;
3613 if (phba->sli_rev < LPFC_SLI_REV4) {
3614 spin_lock_irqsave(&phba->hbalock, iflags);
3615 if (bf_get(lpfc_mbx_read_top_mm, la))
3616 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
3618 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
3619 spin_unlock_irqrestore(&phba->hbalock, iflags);
3622 phba->link_events++;
3623 if ((attn_type == LPFC_ATT_LINK_UP) &&
3624 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) {
3625 phba->fc_stat.LinkUp++;
3626 if (phba->link_flag & LS_LOOPBACK_MODE) {
3627 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3628 "1306 Link Up Event in loop back mode "
3629 "x%x received Data: x%x x%x x%x x%x\n",
3630 la->eventTag, phba->fc_eventTag,
3631 bf_get(lpfc_mbx_read_top_alpa_granted,
3633 bf_get(lpfc_mbx_read_top_link_spd, la),
3636 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3637 "1303 Link Up Event x%x received "
3638 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3639 la->eventTag, phba->fc_eventTag,
3640 bf_get(lpfc_mbx_read_top_alpa_granted,
3642 bf_get(lpfc_mbx_read_top_link_spd, la),
3644 bf_get(lpfc_mbx_read_top_mm, la),
3645 bf_get(lpfc_mbx_read_top_fa, la),
3646 phba->wait_4_mlo_maint_flg);
3648 lpfc_mbx_process_link_up(phba, la);
3649 } else if (attn_type == LPFC_ATT_LINK_DOWN ||
3650 attn_type == LPFC_ATT_UNEXP_WWPN) {
3651 phba->fc_stat.LinkDown++;
3652 if (phba->link_flag & LS_LOOPBACK_MODE)
3653 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3654 "1308 Link Down Event in loop back mode "
3656 "Data: x%x x%x x%x\n",
3657 la->eventTag, phba->fc_eventTag,
3658 phba->pport->port_state, vport->fc_flag);
3659 else if (attn_type == LPFC_ATT_UNEXP_WWPN)
3660 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3661 "1313 Link Down Unexpected FA WWPN Event x%x "
3662 "received Data: x%x x%x x%x x%x x%x\n",
3663 la->eventTag, phba->fc_eventTag,
3664 phba->pport->port_state, vport->fc_flag,
3665 bf_get(lpfc_mbx_read_top_mm, la),
3666 bf_get(lpfc_mbx_read_top_fa, la));
3668 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3669 "1305 Link Down Event x%x received "
3670 "Data: x%x x%x x%x x%x x%x\n",
3671 la->eventTag, phba->fc_eventTag,
3672 phba->pport->port_state, vport->fc_flag,
3673 bf_get(lpfc_mbx_read_top_mm, la),
3674 bf_get(lpfc_mbx_read_top_fa, la));
3675 lpfc_mbx_issue_link_down(phba);
3677 if (phba->sli.sli_flag & LPFC_MENLO_MAINT &&
3678 attn_type == LPFC_ATT_LINK_UP) {
3679 if (phba->link_state != LPFC_LINK_DOWN) {
3680 phba->fc_stat.LinkDown++;
3681 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3682 "1312 Link Down Event x%x received "
3683 "Data: x%x x%x x%x\n",
3684 la->eventTag, phba->fc_eventTag,
3685 phba->pport->port_state, vport->fc_flag);
3686 lpfc_mbx_issue_link_down(phba);
3688 lpfc_enable_la(phba);
3690 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3691 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3692 "Data: x%x x%x x%x\n",
3693 la->eventTag, phba->fc_eventTag,
3694 phba->pport->port_state, vport->fc_flag);
3696 * The cmnd that triggered this will be waiting for this
3699 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3700 if (phba->wait_4_mlo_maint_flg) {
3701 phba->wait_4_mlo_maint_flg = 0;
3702 wake_up_interruptible(&phba->wait_4_mlo_m_q);
3706 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3707 bf_get(lpfc_mbx_read_top_fa, la)) {
3708 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
3709 lpfc_issue_clear_la(phba, vport);
3710 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3712 bf_get(lpfc_mbx_read_top_fa, la));
3715 lpfc_mbx_cmpl_read_topology_free_mbuf:
3716 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3718 mempool_free(pmb, phba->mbox_mem_pool);
3723 * This routine handles processing a REG_LOGIN mailbox
3724 * command upon completion. It is setup in the LPFC_MBOXQ
3725 * as the completion routine when the command is
3726 * handed off to the SLI layer.
3729 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3731 struct lpfc_vport *vport = pmb->vport;
3732 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
3733 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
3735 pmb->ctx_buf = NULL;
3736 pmb->ctx_ndlp = NULL;
3738 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NODE | LOG_DISCOVERY,
3739 "0002 rpi:%x DID:%x flg:%x %d x%px\n",
3740 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3741 kref_read(&ndlp->kref),
3743 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
3744 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3746 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
3747 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
3748 /* We rcvd a rscn after issuing this
3749 * mbox reg login, we may have cycled
3750 * back through the state and be
3751 * back at reg login state so this
3752 * mbox needs to be ignored becase
3753 * there is another reg login in
3756 spin_lock_irq(&ndlp->lock);
3757 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
3758 spin_unlock_irq(&ndlp->lock);
3761 * We cannot leave the RPI registered because
3762 * if we go thru discovery again for this ndlp
3763 * a subsequent REG_RPI will fail.
3765 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3766 lpfc_unreg_rpi(vport, ndlp);
3769 /* Call state machine */
3770 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
3772 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3774 mempool_free(pmb, phba->mbox_mem_pool);
3775 /* decrement the node reference count held for this callback
3784 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3786 MAILBOX_t *mb = &pmb->u.mb;
3787 struct lpfc_vport *vport = pmb->vport;
3788 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3790 switch (mb->mbxStatus) {
3793 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3794 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3797 /* If VPI is busy, reset the HBA */
3799 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3800 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3801 vport->vpi, mb->mbxStatus);
3802 if (!(phba->pport->load_flag & FC_UNLOADING))
3803 lpfc_workq_post_event(phba, NULL, NULL,
3804 LPFC_EVT_RESET_HBA);
3806 spin_lock_irq(shost->host_lock);
3807 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
3808 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3809 spin_unlock_irq(shost->host_lock);
3810 vport->unreg_vpi_cmpl = VPORT_OK;
3811 mempool_free(pmb, phba->mbox_mem_pool);
3812 lpfc_cleanup_vports_rrqs(vport, NULL);
3814 * This shost reference might have been taken at the beginning of
3815 * lpfc_vport_delete()
3817 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
3818 scsi_host_put(shost);
3822 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
3824 struct lpfc_hba *phba = vport->phba;
3828 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3832 lpfc_unreg_vpi(phba, vport->vpi, mbox);
3833 mbox->vport = vport;
3834 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
3835 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3836 if (rc == MBX_NOT_FINISHED) {
3837 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
3838 "1800 Could not issue unreg_vpi\n");
3839 mempool_free(mbox, phba->mbox_mem_pool);
3840 vport->unreg_vpi_cmpl = VPORT_ERROR;
3847 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3849 struct lpfc_vport *vport = pmb->vport;
3850 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3851 MAILBOX_t *mb = &pmb->u.mb;
3853 switch (mb->mbxStatus) {
3857 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3858 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3860 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3861 spin_lock_irq(shost->host_lock);
3862 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
3863 spin_unlock_irq(shost->host_lock);
3864 vport->fc_myDID = 0;
3866 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3867 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
3868 if (phba->nvmet_support)
3869 lpfc_nvmet_update_targetport(phba);
3871 lpfc_nvme_update_localport(vport);
3876 spin_lock_irq(shost->host_lock);
3877 vport->vpi_state |= LPFC_VPI_REGISTERED;
3878 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
3879 spin_unlock_irq(shost->host_lock);
3880 vport->num_disc_nodes = 0;
3881 /* go thru NPR list and issue ELS PLOGIs */
3882 if (vport->fc_npr_cnt)
3883 lpfc_els_disc_plogi(vport);
3885 if (!vport->num_disc_nodes) {
3886 spin_lock_irq(shost->host_lock);
3887 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3888 spin_unlock_irq(shost->host_lock);
3889 lpfc_can_disctmo(vport);
3891 vport->port_state = LPFC_VPORT_READY;
3894 mempool_free(pmb, phba->mbox_mem_pool);
3899 * lpfc_create_static_vport - Read HBA config region to create static vports.
3900 * @phba: pointer to lpfc hba data structure.
3902 * This routine issue a DUMP mailbox command for config region 22 to get
3903 * the list of static vports to be created. The function create vports
3904 * based on the information returned from the HBA.
3907 lpfc_create_static_vport(struct lpfc_hba *phba)
3909 LPFC_MBOXQ_t *pmb = NULL;
3911 struct static_vport_info *vport_info;
3912 int mbx_wait_rc = 0, i;
3913 struct fc_vport_identifiers vport_id;
3914 struct fc_vport *new_fc_vport;
3915 struct Scsi_Host *shost;
3916 struct lpfc_vport *vport;
3917 uint16_t offset = 0;
3918 uint8_t *vport_buff;
3919 struct lpfc_dmabuf *mp;
3920 uint32_t byte_count = 0;
3922 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3924 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3925 "0542 lpfc_create_static_vport failed to"
3926 " allocate mailbox memory\n");
3929 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
3932 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
3934 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3935 "0543 lpfc_create_static_vport failed to"
3936 " allocate vport_info\n");
3937 mempool_free(pmb, phba->mbox_mem_pool);
3941 vport_buff = (uint8_t *) vport_info;
3943 /* free dma buffer from previous round */
3945 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
3946 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3949 if (lpfc_dump_static_vport(phba, pmb, offset))
3952 pmb->vport = phba->pport;
3953 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,
3956 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {
3957 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3958 "0544 lpfc_create_static_vport failed to"
3959 " issue dump mailbox command ret 0x%x "
3961 mbx_wait_rc, mb->mbxStatus);
3965 if (phba->sli_rev == LPFC_SLI_REV4) {
3966 byte_count = pmb->u.mqe.un.mb_words[5];
3967 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
3968 if (byte_count > sizeof(struct static_vport_info) -
3970 byte_count = sizeof(struct static_vport_info)
3972 memcpy(vport_buff + offset, mp->virt, byte_count);
3973 offset += byte_count;
3975 if (mb->un.varDmp.word_cnt >
3976 sizeof(struct static_vport_info) - offset)
3977 mb->un.varDmp.word_cnt =
3978 sizeof(struct static_vport_info)
3980 byte_count = mb->un.varDmp.word_cnt;
3981 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
3982 vport_buff + offset,
3985 offset += byte_count;
3988 } while (byte_count &&
3989 offset < sizeof(struct static_vport_info));
3992 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
3993 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
3994 != VPORT_INFO_REV)) {
3995 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3996 "0545 lpfc_create_static_vport bad"
3997 " information header 0x%x 0x%x\n",
3998 le32_to_cpu(vport_info->signature),
3999 le32_to_cpu(vport_info->rev) &
4000 VPORT_INFO_REV_MASK);
4005 shost = lpfc_shost_from_vport(phba->pport);
4007 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
4008 memset(&vport_id, 0, sizeof(vport_id));
4009 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
4010 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
4011 if (!vport_id.port_name || !vport_id.node_name)
4014 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
4015 vport_id.vport_type = FC_PORTTYPE_NPIV;
4016 vport_id.disable = false;
4017 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
4019 if (!new_fc_vport) {
4020 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4021 "0546 lpfc_create_static_vport failed to"
4026 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
4027 vport->vport_flag |= STATIC_VPORT;
4032 if (mbx_wait_rc != MBX_TIMEOUT) {
4034 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
4035 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4038 mempool_free(pmb, phba->mbox_mem_pool);
4045 * This routine handles processing a Fabric REG_LOGIN mailbox
4046 * command upon completion. It is setup in the LPFC_MBOXQ
4047 * as the completion routine when the command is
4048 * handed off to the SLI layer.
4051 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4053 struct lpfc_vport *vport = pmb->vport;
4054 MAILBOX_t *mb = &pmb->u.mb;
4055 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
4056 struct lpfc_nodelist *ndlp;
4057 struct Scsi_Host *shost;
4059 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
4060 pmb->ctx_ndlp = NULL;
4061 pmb->ctx_buf = NULL;
4063 if (mb->mbxStatus) {
4064 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4065 "0258 Register Fabric login error: 0x%x\n",
4067 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4069 mempool_free(pmb, phba->mbox_mem_pool);
4071 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
4072 /* FLOGI failed, use loop map to make discovery list */
4073 lpfc_disc_list_loopmap(vport);
4075 /* Start discovery */
4076 lpfc_disc_start(vport);
4077 /* Decrement the reference count to ndlp after the
4078 * reference to the ndlp are done.
4084 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4085 /* Decrement the reference count to ndlp after the reference
4086 * to the ndlp are done.
4092 if (phba->sli_rev < LPFC_SLI_REV4)
4093 ndlp->nlp_rpi = mb->un.varWords[0];
4094 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
4095 ndlp->nlp_type |= NLP_FABRIC;
4096 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4098 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
4099 /* when physical port receive logo donot start
4100 * vport discovery */
4101 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
4102 lpfc_start_fdiscs(phba);
4104 shost = lpfc_shost_from_vport(vport);
4105 spin_lock_irq(shost->host_lock);
4106 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
4107 spin_unlock_irq(shost->host_lock);
4109 lpfc_do_scr_ns_plogi(phba, vport);
4112 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4114 mempool_free(pmb, phba->mbox_mem_pool);
4116 /* Drop the reference count from the mbox at the end after
4117 * all the current reference to the ndlp have been done.
4124 * This routine will issue a GID_FT for each FC4 Type supported
4125 * by the driver. ALL GID_FTs must complete before discovery is started.
4128 lpfc_issue_gidft(struct lpfc_vport *vport)
4130 /* Good status, issue CT Request to NameServer */
4131 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4132 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) {
4133 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) {
4134 /* Cannot issue NameServer FCP Query, so finish up
4137 lpfc_printf_vlog(vport, KERN_ERR,
4139 "0604 %s FC TYPE %x %s\n",
4140 "Failed to issue GID_FT to ",
4142 "Finishing discovery.");
4148 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4149 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
4150 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) {
4151 /* Cannot issue NameServer NVME Query, so finish up
4154 lpfc_printf_vlog(vport, KERN_ERR,
4156 "0605 %s FC_TYPE %x %s %d\n",
4157 "Failed to issue GID_FT to ",
4159 "Finishing discovery: gidftinp ",
4161 if (vport->gidft_inp == 0)
4166 return vport->gidft_inp;
4170 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports
4171 * @vport: The virtual port for which this call is being executed.
4173 * This routine will issue a GID_PT to get a list of all N_Ports
4176 * 0 - Failure to issue a GID_PT
4180 lpfc_issue_gidpt(struct lpfc_vport *vport)
4182 /* Good status, issue CT Request to NameServer */
4183 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) {
4184 /* Cannot issue NameServer FCP Query, so finish up
4187 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4188 "0606 %s Port TYPE %x %s\n",
4189 "Failed to issue GID_PT to ",
4191 "Finishing discovery.");
4199 * This routine handles processing a NameServer REG_LOGIN mailbox
4200 * command upon completion. It is setup in the LPFC_MBOXQ
4201 * as the completion routine when the command is
4202 * handed off to the SLI layer.
4205 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4207 MAILBOX_t *mb = &pmb->u.mb;
4208 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
4209 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
4210 struct lpfc_vport *vport = pmb->vport;
4212 pmb->ctx_buf = NULL;
4213 pmb->ctx_ndlp = NULL;
4214 vport->gidft_inp = 0;
4216 if (mb->mbxStatus) {
4217 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4218 "0260 Register NameServer error: 0x%x\n",
4222 /* decrement the node reference count held for this
4223 * callback function.
4226 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4228 mempool_free(pmb, phba->mbox_mem_pool);
4230 /* If the node is not registered with the scsi or nvme
4231 * transport, remove the fabric node. The failed reg_login
4234 if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
4235 spin_lock_irq(&ndlp->lock);
4236 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
4237 spin_unlock_irq(&ndlp->lock);
4238 lpfc_nlp_not_used(ndlp);
4241 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
4243 * RegLogin failed, use loop map to make discovery
4246 lpfc_disc_list_loopmap(vport);
4248 /* Start discovery */
4249 lpfc_disc_start(vport);
4252 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4256 if (phba->sli_rev < LPFC_SLI_REV4)
4257 ndlp->nlp_rpi = mb->un.varWords[0];
4258 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
4259 ndlp->nlp_type |= NLP_FABRIC;
4260 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4261 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,
4262 "0003 rpi:%x DID:%x flg:%x %d x%px\n",
4263 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
4264 kref_read(&ndlp->kref),
4267 if (vport->port_state < LPFC_VPORT_READY) {
4268 /* Link up discovery requires Fabric registration. */
4269 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
4270 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
4271 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
4272 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
4274 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4275 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP))
4276 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP);
4278 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4279 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME))
4280 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0,
4283 /* Issue SCR just before NameServer GID_FT Query */
4284 lpfc_issue_els_scr(vport, 0);
4286 if (!phba->cfg_enable_mi ||
4287 phba->sli4_hba.pc_sli4_params.mi_ver < LPFC_MIB3_SUPPORT)
4288 lpfc_issue_els_rdf(vport, 0);
4291 vport->fc_ns_retry = 0;
4292 if (lpfc_issue_gidft(vport) == 0)
4296 * At this point in time we may need to wait for multiple
4297 * SLI_CTNS_GID_FT CT commands to complete before we start discovery.
4299 * decrement the node reference count held for this
4300 * callback function.
4303 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4305 mempool_free(pmb, phba->mbox_mem_pool);
4311 * This routine handles processing a Fabric Controller REG_LOGIN mailbox
4312 * command upon completion. It is setup in the LPFC_MBOXQ
4313 * as the completion routine when the command is handed off to the SLI layer.
4316 lpfc_mbx_cmpl_fc_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4318 struct lpfc_vport *vport = pmb->vport;
4319 MAILBOX_t *mb = &pmb->u.mb;
4320 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
4321 struct lpfc_nodelist *ndlp;
4323 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
4324 pmb->ctx_ndlp = NULL;
4325 pmb->ctx_buf = NULL;
4327 if (mb->mbxStatus) {
4328 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4329 "0933 %s: Register FC login error: 0x%x\n",
4330 __func__, mb->mbxStatus);
4334 if (phba->sli_rev < LPFC_SLI_REV4)
4335 ndlp->nlp_rpi = mb->un.varWords[0];
4337 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4338 "0934 %s: Complete FC x%x RegLogin rpi x%x ste x%x\n",
4339 __func__, ndlp->nlp_DID, ndlp->nlp_rpi,
4342 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
4343 ndlp->nlp_type |= NLP_FABRIC;
4344 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4347 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4349 mempool_free(pmb, phba->mbox_mem_pool);
4351 /* Drop the reference count from the mbox at the end after
4352 * all the current reference to the ndlp have been done.
4358 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4360 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4361 struct fc_rport *rport;
4362 struct lpfc_rport_data *rdata;
4363 struct fc_rport_identifiers rport_ids;
4364 struct lpfc_hba *phba = vport->phba;
4365 unsigned long flags;
4367 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
4370 /* Remote port has reappeared. Re-register w/ FC transport */
4371 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
4372 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
4373 rport_ids.port_id = ndlp->nlp_DID;
4374 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
4377 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
4378 "rport add: did:x%x flg:x%x type x%x",
4379 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4381 /* Don't add the remote port if unloading. */
4382 if (vport->load_flag & FC_UNLOADING)
4386 * Disassociate any older association between this ndlp and rport
4389 rdata = ndlp->rport->dd_data;
4390 rdata->pnode = NULL;
4393 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
4395 dev_printk(KERN_WARNING, &phba->pcidev->dev,
4396 "Warning: fc_remote_port_add failed\n");
4400 /* Successful port add. Complete initializing node data */
4401 rport->maxframe_size = ndlp->nlp_maxframe;
4402 rport->supported_classes = ndlp->nlp_class_sup;
4403 rdata = rport->dd_data;
4404 rdata->pnode = lpfc_nlp_get(ndlp);
4405 if (!rdata->pnode) {
4406 dev_warn(&phba->pcidev->dev,
4407 "Warning - node ref failed. Unreg rport\n");
4408 fc_remote_port_delete(rport);
4413 spin_lock_irqsave(&ndlp->lock, flags);
4414 ndlp->fc4_xpt_flags |= SCSI_XPT_REGD;
4415 spin_unlock_irqrestore(&ndlp->lock, flags);
4417 if (ndlp->nlp_type & NLP_FCP_TARGET)
4418 rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET;
4419 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
4420 rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
4421 if (ndlp->nlp_type & NLP_NVME_INITIATOR)
4422 rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR;
4423 if (ndlp->nlp_type & NLP_NVME_TARGET)
4424 rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET;
4425 if (ndlp->nlp_type & NLP_NVME_DISCOVERY)
4426 rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY;
4428 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
4429 fc_remote_port_rolechg(rport, rport_ids.roles);
4431 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4432 "3183 %s rport x%px DID x%x, role x%x\n",
4433 __func__, rport, rport->port_id, rport->roles);
4435 if ((rport->scsi_target_id != -1) &&
4436 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
4437 ndlp->nlp_sid = rport->scsi_target_id;
4444 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
4446 struct fc_rport *rport = ndlp->rport;
4447 struct lpfc_vport *vport = ndlp->vport;
4449 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
4452 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
4453 "rport delete: did:x%x flg:x%x type x%x",
4454 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4456 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4457 "3184 rport unregister x%06x, rport x%px "
4459 ndlp->nlp_DID, rport, ndlp->fc4_xpt_flags);
4461 fc_remote_port_delete(rport);
4466 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
4468 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4469 unsigned long iflags;
4471 spin_lock_irqsave(shost->host_lock, iflags);
4473 case NLP_STE_UNUSED_NODE:
4474 vport->fc_unused_cnt += count;
4476 case NLP_STE_PLOGI_ISSUE:
4477 vport->fc_plogi_cnt += count;
4479 case NLP_STE_ADISC_ISSUE:
4480 vport->fc_adisc_cnt += count;
4482 case NLP_STE_REG_LOGIN_ISSUE:
4483 vport->fc_reglogin_cnt += count;
4485 case NLP_STE_PRLI_ISSUE:
4486 vport->fc_prli_cnt += count;
4488 case NLP_STE_UNMAPPED_NODE:
4489 vport->fc_unmap_cnt += count;
4491 case NLP_STE_MAPPED_NODE:
4492 vport->fc_map_cnt += count;
4494 case NLP_STE_NPR_NODE:
4495 if (vport->fc_npr_cnt == 0 && count == -1)
4496 vport->fc_npr_cnt = 0;
4498 vport->fc_npr_cnt += count;
4501 spin_unlock_irqrestore(shost->host_lock, iflags);
4505 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4506 int old_state, int new_state)
4508 if (new_state == NLP_STE_UNMAPPED_NODE) {
4509 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4510 ndlp->nlp_type |= NLP_FC_NODE;
4512 if (new_state == NLP_STE_MAPPED_NODE)
4513 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4514 if (new_state == NLP_STE_NPR_NODE)
4515 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
4517 /* FCP and NVME Transport interface */
4518 if ((old_state == NLP_STE_MAPPED_NODE ||
4519 old_state == NLP_STE_UNMAPPED_NODE)) {
4521 lpfc_valid_xpt_node(ndlp)) {
4522 vport->phba->nport_event_cnt++;
4523 lpfc_unregister_remote_port(ndlp);
4526 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) {
4527 vport->phba->nport_event_cnt++;
4528 if (vport->phba->nvmet_support == 0) {
4529 /* Start devloss if target. */
4530 if (ndlp->nlp_type & NLP_NVME_TARGET)
4531 lpfc_nvme_unregister_port(vport, ndlp);
4533 /* NVMET has no upcall. */
4539 /* FCP and NVME Transport interfaces */
4541 if (new_state == NLP_STE_MAPPED_NODE ||
4542 new_state == NLP_STE_UNMAPPED_NODE) {
4543 if (lpfc_valid_xpt_node(ndlp)) {
4544 vport->phba->nport_event_cnt++;
4546 * Tell the fc transport about the port, if we haven't
4547 * already. If we have, and it's a scsi entity, be
4549 lpfc_register_remote_port(vport, ndlp);
4551 /* Notify the NVME transport of this new rport. */
4552 if (vport->phba->sli_rev >= LPFC_SLI_REV4 &&
4553 ndlp->nlp_fc4_type & NLP_FC4_NVME) {
4554 if (vport->phba->nvmet_support == 0) {
4555 /* Register this rport with the transport.
4556 * Only NVME Target Rports are registered with
4559 if (ndlp->nlp_type & NLP_NVME_TARGET) {
4560 vport->phba->nport_event_cnt++;
4561 lpfc_nvme_register_port(vport, ndlp);
4564 /* Just take an NDLP ref count since the
4565 * target does not register rports.
4572 if ((new_state == NLP_STE_MAPPED_NODE) &&
4573 (vport->stat_data_enabled)) {
4575 * A new target is discovered, if there is no buffer for
4576 * statistical data collection allocate buffer.
4578 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
4579 sizeof(struct lpfc_scsicmd_bkt),
4582 if (!ndlp->lat_data)
4583 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
4584 "0286 lpfc_nlp_state_cleanup failed to "
4585 "allocate statistical data buffer DID "
4586 "0x%x\n", ndlp->nlp_DID);
4589 * If the node just added to Mapped list was an FCP target,
4590 * but the remote port registration failed or assigned a target
4591 * id outside the presentable range - move the node to the
4594 if ((new_state == NLP_STE_MAPPED_NODE) &&
4595 (ndlp->nlp_type & NLP_FCP_TARGET) &&
4597 ndlp->rport->scsi_target_id == -1 ||
4598 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
4599 spin_lock_irq(&ndlp->lock);
4600 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
4601 spin_unlock_irq(&ndlp->lock);
4602 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4607 lpfc_nlp_state_name(char *buffer, size_t size, int state)
4609 static char *states[] = {
4610 [NLP_STE_UNUSED_NODE] = "UNUSED",
4611 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
4612 [NLP_STE_ADISC_ISSUE] = "ADISC",
4613 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
4614 [NLP_STE_PRLI_ISSUE] = "PRLI",
4615 [NLP_STE_LOGO_ISSUE] = "LOGO",
4616 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
4617 [NLP_STE_MAPPED_NODE] = "MAPPED",
4618 [NLP_STE_NPR_NODE] = "NPR",
4621 if (state < NLP_STE_MAX_STATE && states[state])
4622 strlcpy(buffer, states[state], size);
4624 snprintf(buffer, size, "unknown (%d)", state);
4629 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4632 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4633 int old_state = ndlp->nlp_state;
4634 int node_dropped = ndlp->nlp_flag & NLP_DROPPED;
4635 char name1[16], name2[16];
4637 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4638 "0904 NPort state transition x%06x, %s -> %s\n",
4640 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
4641 lpfc_nlp_state_name(name2, sizeof(name2), state));
4643 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4644 "node statechg did:x%x old:%d ste:%d",
4645 ndlp->nlp_DID, old_state, state);
4647 if (node_dropped && old_state == NLP_STE_UNUSED_NODE &&
4648 state != NLP_STE_UNUSED_NODE) {
4649 ndlp->nlp_flag &= ~NLP_DROPPED;
4653 if (old_state == NLP_STE_NPR_NODE &&
4654 state != NLP_STE_NPR_NODE)
4655 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4656 if (old_state == NLP_STE_UNMAPPED_NODE) {
4657 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
4658 ndlp->nlp_type &= ~NLP_FC_NODE;
4661 if (list_empty(&ndlp->nlp_listp)) {
4662 spin_lock_irq(shost->host_lock);
4663 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4664 spin_unlock_irq(shost->host_lock);
4665 } else if (old_state)
4666 lpfc_nlp_counters(vport, old_state, -1);
4668 ndlp->nlp_state = state;
4669 lpfc_nlp_counters(vport, state, 1);
4670 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
4674 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4676 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4678 if (list_empty(&ndlp->nlp_listp)) {
4679 spin_lock_irq(shost->host_lock);
4680 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4681 spin_unlock_irq(shost->host_lock);
4686 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4688 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4690 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4691 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4692 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4693 spin_lock_irq(shost->host_lock);
4694 list_del_init(&ndlp->nlp_listp);
4695 spin_unlock_irq(shost->host_lock);
4696 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4697 NLP_STE_UNUSED_NODE);
4701 * lpfc_initialize_node - Initialize all fields of node object
4702 * @vport: Pointer to Virtual Port object.
4703 * @ndlp: Pointer to FC node object.
4704 * @did: FC_ID of the node.
4706 * This function is always called when node object need to be initialized.
4707 * It initializes all the fields of the node object. Although the reference
4708 * to phba from @ndlp can be obtained indirectly through it's reference to
4709 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4710 * to the life-span of the @ndlp might go beyond the existence of @vport as
4711 * the final release of ndlp is determined by its reference count. And, the
4712 * operation on @ndlp needs the reference to phba.
4715 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4718 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
4719 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
4720 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0);
4721 INIT_LIST_HEAD(&ndlp->recovery_evt.evt_listp);
4723 ndlp->nlp_DID = did;
4724 ndlp->vport = vport;
4725 ndlp->phba = vport->phba;
4726 ndlp->nlp_sid = NLP_NO_SID;
4727 ndlp->nlp_fc4_type = NLP_FC4_NONE;
4728 kref_init(&ndlp->kref);
4729 atomic_set(&ndlp->cmd_pending, 0);
4730 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4731 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
4735 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4738 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
4739 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
4740 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4741 * until ALL other outstanding threads have completed. We check
4742 * that the ndlp not already in the UNUSED state before we proceed.
4744 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4746 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
4747 ndlp->nlp_flag |= NLP_DROPPED;
4748 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
4749 lpfc_cleanup_vports_rrqs(vport, ndlp);
4750 lpfc_unreg_rpi(vport, ndlp);
4758 * Start / ReStart rescue timer for Discovery / RSCN handling
4761 lpfc_set_disctmo(struct lpfc_vport *vport)
4763 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4764 struct lpfc_hba *phba = vport->phba;
4767 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
4768 /* For FAN, timeout should be greater than edtov */
4769 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
4771 /* Normal discovery timeout should be > than ELS/CT timeout
4772 * FC spec states we need 3 * ratov for CT requests
4774 tmo = ((phba->fc_ratov * 3) + 3);
4778 if (!timer_pending(&vport->fc_disctmo)) {
4779 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4780 "set disc timer: tmo:x%x state:x%x flg:x%x",
4781 tmo, vport->port_state, vport->fc_flag);
4784 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));
4785 spin_lock_irq(shost->host_lock);
4786 vport->fc_flag |= FC_DISC_TMO;
4787 spin_unlock_irq(shost->host_lock);
4789 /* Start Discovery Timer state <hba_state> */
4790 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4791 "0247 Start Discovery Timer state x%x "
4792 "Data: x%x x%lx x%x x%x\n",
4793 vport->port_state, tmo,
4794 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
4795 vport->fc_adisc_cnt);
4801 * Cancel rescue timer for Discovery / RSCN handling
4804 lpfc_can_disctmo(struct lpfc_vport *vport)
4806 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4807 unsigned long iflags;
4809 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4810 "can disc timer: state:x%x rtry:x%x flg:x%x",
4811 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
4813 /* Turn off discovery timer if its running */
4814 if (vport->fc_flag & FC_DISC_TMO) {
4815 spin_lock_irqsave(shost->host_lock, iflags);
4816 vport->fc_flag &= ~FC_DISC_TMO;
4817 spin_unlock_irqrestore(shost->host_lock, iflags);
4818 del_timer_sync(&vport->fc_disctmo);
4819 spin_lock_irqsave(&vport->work_port_lock, iflags);
4820 vport->work_port_events &= ~WORKER_DISC_TMO;
4821 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
4824 /* Cancel Discovery Timer state <hba_state> */
4825 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4826 "0248 Cancel Discovery Timer state x%x "
4827 "Data: x%x x%x x%x\n",
4828 vport->port_state, vport->fc_flag,
4829 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
4834 * Check specified ring for outstanding IOCB on the SLI queue
4835 * Return true if iocb matches the specified nport
4838 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
4839 struct lpfc_sli_ring *pring,
4840 struct lpfc_iocbq *iocb,
4841 struct lpfc_nodelist *ndlp)
4843 IOCB_t *icmd = &iocb->iocb;
4844 struct lpfc_vport *vport = ndlp->vport;
4846 if (iocb->vport != vport)
4849 if (pring->ringno == LPFC_ELS_RING) {
4850 switch (icmd->ulpCommand) {
4851 case CMD_GEN_REQUEST64_CR:
4852 if (iocb->context_un.ndlp == ndlp)
4855 case CMD_ELS_REQUEST64_CR:
4856 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
4859 case CMD_XMIT_ELS_RSP64_CX:
4860 if (iocb->context1 == (uint8_t *) ndlp)
4863 } else if (pring->ringno == LPFC_FCP_RING) {
4864 /* Skip match check if waiting to relogin to FCP target */
4865 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4866 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
4869 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
4877 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba,
4878 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring,
4879 struct list_head *dequeue_list)
4881 struct lpfc_iocbq *iocb, *next_iocb;
4883 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
4884 /* Check to see if iocb matches the nport */
4885 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
4886 /* match, dequeue */
4887 list_move_tail(&iocb->list, dequeue_list);
4892 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba,
4893 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
4895 struct lpfc_sli *psli = &phba->sli;
4898 spin_lock_irq(&phba->hbalock);
4899 for (i = 0; i < psli->num_rings; i++)
4900 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i],
4902 spin_unlock_irq(&phba->hbalock);
4906 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba,
4907 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
4909 struct lpfc_sli_ring *pring;
4910 struct lpfc_queue *qp = NULL;
4912 spin_lock_irq(&phba->hbalock);
4913 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
4917 spin_lock(&pring->ring_lock);
4918 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list);
4919 spin_unlock(&pring->ring_lock);
4921 spin_unlock_irq(&phba->hbalock);
4925 * Free resources / clean up outstanding I/Os
4926 * associated with nlp_rpi in the LPFC_NODELIST entry.
4929 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
4931 LIST_HEAD(completions);
4933 lpfc_fabric_abort_nport(ndlp);
4936 * Everything that matches on txcmplq will be returned
4937 * by firmware with a no rpi error.
4939 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4940 if (phba->sli_rev != LPFC_SLI_REV4)
4941 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions);
4943 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions);
4946 /* Cancel all the IOCBs from the completions list */
4947 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4954 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
4955 * @phba: Pointer to HBA context object.
4956 * @pmb: Pointer to mailbox object.
4958 * This function will issue an ELS LOGO command after completing
4962 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4964 struct lpfc_vport *vport = pmb->vport;
4965 struct lpfc_nodelist *ndlp;
4967 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp);
4970 lpfc_issue_els_logo(vport, ndlp, 0);
4971 mempool_free(pmb, phba->mbox_mem_pool);
4973 /* Check to see if there are any deferred events to process */
4974 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
4975 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
4976 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4977 "1434 UNREG cmpl deferred logo x%x "
4978 "on NPort x%x Data: x%x x%px\n",
4979 ndlp->nlp_rpi, ndlp->nlp_DID,
4980 ndlp->nlp_defer_did, ndlp);
4982 ndlp->nlp_flag &= ~NLP_UNREG_INP;
4983 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
4984 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
4986 /* NLP_RELEASE_RPI is only set for SLI4 ports. */
4987 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
4988 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
4989 spin_lock_irq(&ndlp->lock);
4990 ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
4991 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
4992 spin_unlock_irq(&ndlp->lock);
4994 spin_lock_irq(&ndlp->lock);
4995 ndlp->nlp_flag &= ~NLP_UNREG_INP;
4996 spin_unlock_irq(&ndlp->lock);
5001 * Sets the mailbox completion handler to be used for the
5002 * unreg_rpi command. The handler varies based on the state of
5003 * the port and what will be happening to the rpi next.
5006 lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport,
5007 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox)
5009 unsigned long iflags;
5011 /* Driver always gets a reference on the mailbox job
5012 * in support of async jobs.
5014 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
5015 if (!mbox->ctx_ndlp)
5018 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
5019 mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
5021 } else if (phba->sli_rev == LPFC_SLI_REV4 &&
5022 (!(vport->load_flag & FC_UNLOADING)) &&
5023 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
5024 LPFC_SLI_INTF_IF_TYPE_2) &&
5025 (kref_read(&ndlp->kref) > 0)) {
5026 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr;
5028 if (vport->load_flag & FC_UNLOADING) {
5029 if (phba->sli_rev == LPFC_SLI_REV4) {
5030 spin_lock_irqsave(&ndlp->lock, iflags);
5031 ndlp->nlp_flag |= NLP_RELEASE_RPI;
5032 spin_unlock_irqrestore(&ndlp->lock, iflags);
5035 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5040 * Free rpi associated with LPFC_NODELIST entry.
5041 * This routine is called from lpfc_freenode(), when we are removing
5042 * a LPFC_NODELIST entry. It is also called if the driver initiates a
5043 * LOGO that completes successfully, and we are waiting to PLOGI back
5044 * to the remote NPort. In addition, it is called after we receive
5045 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
5046 * we are waiting to PLOGI back to the remote NPort.
5049 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5051 struct lpfc_hba *phba = vport->phba;
5053 int rc, acc_plogi = 1;
5056 if (ndlp->nlp_flag & NLP_RPI_REGISTERED ||
5057 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) {
5058 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
5059 lpfc_printf_vlog(vport, KERN_INFO,
5060 LOG_NODE | LOG_DISCOVERY,
5061 "3366 RPI x%x needs to be "
5062 "unregistered nlp_flag x%x "
5064 ndlp->nlp_rpi, ndlp->nlp_flag,
5067 /* If there is already an UNREG in progress for this ndlp,
5068 * no need to queue up another one.
5070 if (ndlp->nlp_flag & NLP_UNREG_INP) {
5071 lpfc_printf_vlog(vport, KERN_INFO,
5072 LOG_NODE | LOG_DISCOVERY,
5073 "1436 unreg_rpi SKIP UNREG x%x on "
5074 "NPort x%x deferred x%x flg x%x "
5076 ndlp->nlp_rpi, ndlp->nlp_DID,
5077 ndlp->nlp_defer_did,
5078 ndlp->nlp_flag, ndlp);
5082 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5084 /* SLI4 ports require the physical rpi value. */
5085 rpi = ndlp->nlp_rpi;
5086 if (phba->sli_rev == LPFC_SLI_REV4)
5087 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
5089 lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
5090 mbox->vport = vport;
5091 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox);
5092 if (!mbox->ctx_ndlp) {
5093 mempool_free(mbox, phba->mbox_mem_pool);
5097 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr)
5099 * accept PLOGIs after unreg_rpi_cmpl
5102 if (((ndlp->nlp_DID & Fabric_DID_MASK) !=
5104 (!(vport->fc_flag & FC_OFFLINE_MODE)))
5105 ndlp->nlp_flag |= NLP_UNREG_INP;
5107 lpfc_printf_vlog(vport, KERN_INFO,
5108 LOG_NODE | LOG_DISCOVERY,
5109 "1433 unreg_rpi UNREG x%x on "
5110 "NPort x%x deferred flg x%x "
5112 ndlp->nlp_rpi, ndlp->nlp_DID,
5113 ndlp->nlp_flag, ndlp);
5115 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5116 if (rc == MBX_NOT_FINISHED) {
5117 mempool_free(mbox, phba->mbox_mem_pool);
5121 lpfc_printf_vlog(vport, KERN_INFO,
5122 LOG_NODE | LOG_DISCOVERY,
5123 "1444 Failed to allocate mempool "
5124 "unreg_rpi UNREG x%x, "
5125 "DID x%x, flag x%x, "
5127 ndlp->nlp_rpi, ndlp->nlp_DID,
5128 ndlp->nlp_flag, ndlp);
5130 /* Because mempool_alloc failed, we
5131 * will issue a LOGO here and keep the rpi alive if
5134 if (!(vport->load_flag & FC_UNLOADING)) {
5135 ndlp->nlp_flag &= ~NLP_UNREG_INP;
5136 lpfc_issue_els_logo(vport, ndlp, 0);
5137 ndlp->nlp_prev_state = ndlp->nlp_state;
5138 lpfc_nlp_set_state(vport, ndlp,
5144 lpfc_no_rpi(phba, ndlp);
5146 if (phba->sli_rev != LPFC_SLI_REV4)
5148 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
5149 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5151 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
5154 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
5159 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
5160 * @phba: pointer to lpfc hba data structure.
5162 * This routine is invoked to unregister all the currently registered RPIs
5166 lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
5168 struct lpfc_vport **vports;
5169 struct lpfc_nodelist *ndlp;
5170 struct Scsi_Host *shost;
5173 vports = lpfc_create_vport_work_array(phba);
5175 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5176 "2884 Vport array allocation failed \n");
5179 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
5180 shost = lpfc_shost_from_vport(vports[i]);
5181 spin_lock_irq(shost->host_lock);
5182 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
5183 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
5184 /* The mempool_alloc might sleep */
5185 spin_unlock_irq(shost->host_lock);
5186 lpfc_unreg_rpi(vports[i], ndlp);
5187 spin_lock_irq(shost->host_lock);
5190 spin_unlock_irq(shost->host_lock);
5192 lpfc_destroy_vport_work_array(phba, vports);
5196 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
5198 struct lpfc_hba *phba = vport->phba;
5202 if (phba->sli_rev == LPFC_SLI_REV4) {
5203 lpfc_sli4_unreg_all_rpis(vport);
5207 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5209 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
5211 mbox->vport = vport;
5212 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5213 mbox->ctx_ndlp = NULL;
5214 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
5215 if (rc != MBX_TIMEOUT)
5216 mempool_free(mbox, phba->mbox_mem_pool);
5218 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
5219 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
5220 "1836 Could not issue "
5221 "unreg_login(all_rpis) status %d\n",
5227 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
5229 struct lpfc_hba *phba = vport->phba;
5233 /* Unreg DID is an SLI3 operation. */
5234 if (phba->sli_rev > LPFC_SLI_REV3)
5237 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5239 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
5241 mbox->vport = vport;
5242 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5243 mbox->ctx_ndlp = NULL;
5244 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
5245 if (rc != MBX_TIMEOUT)
5246 mempool_free(mbox, phba->mbox_mem_pool);
5248 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
5249 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
5250 "1815 Could not issue "
5251 "unreg_did (default rpis) status %d\n",
5257 * Free resources associated with LPFC_NODELIST entry
5258 * so it can be freed.
5261 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5263 struct lpfc_hba *phba = vport->phba;
5264 LPFC_MBOXQ_t *mb, *nextmb;
5265 struct lpfc_dmabuf *mp;
5267 /* Cleanup node for NPort <nlp_DID> */
5268 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5269 "0900 Cleanup node for NPort x%x "
5270 "Data: x%x x%x x%x\n",
5271 ndlp->nlp_DID, ndlp->nlp_flag,
5272 ndlp->nlp_state, ndlp->nlp_rpi);
5273 lpfc_dequeue_node(vport, ndlp);
5275 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
5277 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
5278 if ((mb = phba->sli.mbox_active)) {
5279 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
5280 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
5281 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
5282 mb->ctx_ndlp = NULL;
5283 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5287 spin_lock_irq(&phba->hbalock);
5288 /* Cleanup REG_LOGIN completions which are not yet processed */
5289 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
5290 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
5291 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
5292 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp))
5295 mb->ctx_ndlp = NULL;
5296 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5299 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
5300 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
5301 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
5302 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
5303 mp = (struct lpfc_dmabuf *)(mb->ctx_buf);
5305 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
5308 list_del(&mb->list);
5309 mempool_free(mb, phba->mbox_mem_pool);
5310 /* We shall not invoke the lpfc_nlp_put to decrement
5311 * the ndlp reference count as we are in the process
5312 * of lpfc_nlp_release.
5316 spin_unlock_irq(&phba->hbalock);
5318 lpfc_els_abort(phba, ndlp);
5320 spin_lock_irq(&ndlp->lock);
5321 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
5322 spin_unlock_irq(&ndlp->lock);
5324 ndlp->nlp_last_elscmd = 0;
5325 del_timer_sync(&ndlp->nlp_delayfunc);
5327 list_del_init(&ndlp->els_retry_evt.evt_listp);
5328 list_del_init(&ndlp->dev_loss_evt.evt_listp);
5329 list_del_init(&ndlp->recovery_evt.evt_listp);
5330 lpfc_cleanup_vports_rrqs(vport, ndlp);
5332 if (phba->sli_rev == LPFC_SLI_REV4)
5333 ndlp->nlp_flag |= NLP_RELEASE_RPI;
5339 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
5342 D_ID mydid, ndlpdid, matchdid;
5344 if (did == Bcast_DID)
5347 /* First check for Direct match */
5348 if (ndlp->nlp_DID == did)
5351 /* Next check for area/domain identically equals 0 match */
5352 mydid.un.word = vport->fc_myDID;
5353 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
5357 matchdid.un.word = did;
5358 ndlpdid.un.word = ndlp->nlp_DID;
5359 if (matchdid.un.b.id == ndlpdid.un.b.id) {
5360 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
5361 (mydid.un.b.area == matchdid.un.b.area)) {
5362 /* This code is supposed to match the ID
5363 * for a private loop device that is
5364 * connect to fl_port. But we need to
5365 * check that the port did not just go
5366 * from pt2pt to fabric or we could end
5367 * up matching ndlp->nlp_DID 000001 to
5368 * fabric DID 0x20101
5370 if ((ndlpdid.un.b.domain == 0) &&
5371 (ndlpdid.un.b.area == 0)) {
5372 if (ndlpdid.un.b.id &&
5373 vport->phba->fc_topology ==
5380 matchdid.un.word = ndlp->nlp_DID;
5381 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
5382 (mydid.un.b.area == ndlpdid.un.b.area)) {
5383 if ((matchdid.un.b.domain == 0) &&
5384 (matchdid.un.b.area == 0)) {
5385 if (matchdid.un.b.id)
5393 /* Search for a nodelist entry */
5394 static struct lpfc_nodelist *
5395 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
5397 struct lpfc_nodelist *ndlp;
5400 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5401 if (lpfc_matchdid(vport, ndlp, did)) {
5402 data1 = (((uint32_t)ndlp->nlp_state << 24) |
5403 ((uint32_t)ndlp->nlp_xri << 16) |
5404 ((uint32_t)ndlp->nlp_type << 8)
5406 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5407 "0929 FIND node DID "
5408 "Data: x%px x%x x%x x%x x%x x%px\n",
5409 ndlp, ndlp->nlp_DID,
5410 ndlp->nlp_flag, data1, ndlp->nlp_rpi,
5411 ndlp->active_rrqs_xri_bitmap);
5416 /* FIND node did <did> NOT FOUND */
5417 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5418 "0932 FIND node did x%x NOT FOUND.\n", did);
5422 struct lpfc_nodelist *
5423 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
5425 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5426 struct lpfc_nodelist *ndlp;
5427 unsigned long iflags;
5429 spin_lock_irqsave(shost->host_lock, iflags);
5430 ndlp = __lpfc_findnode_did(vport, did);
5431 spin_unlock_irqrestore(shost->host_lock, iflags);
5435 struct lpfc_nodelist *
5436 lpfc_findnode_mapped(struct lpfc_vport *vport)
5438 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5439 struct lpfc_nodelist *ndlp;
5441 unsigned long iflags;
5443 spin_lock_irqsave(shost->host_lock, iflags);
5445 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5446 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE ||
5447 ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
5448 data1 = (((uint32_t)ndlp->nlp_state << 24) |
5449 ((uint32_t)ndlp->nlp_xri << 16) |
5450 ((uint32_t)ndlp->nlp_type << 8) |
5451 ((uint32_t)ndlp->nlp_rpi & 0xff));
5452 spin_unlock_irqrestore(shost->host_lock, iflags);
5453 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5454 "2025 FIND node DID "
5455 "Data: x%px x%x x%x x%x x%px\n",
5456 ndlp, ndlp->nlp_DID,
5457 ndlp->nlp_flag, data1,
5458 ndlp->active_rrqs_xri_bitmap);
5462 spin_unlock_irqrestore(shost->host_lock, iflags);
5464 /* FIND node did <did> NOT FOUND */
5465 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5466 "2026 FIND mapped did NOT FOUND.\n");
5470 struct lpfc_nodelist *
5471 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
5473 struct lpfc_nodelist *ndlp;
5475 ndlp = lpfc_findnode_did(vport, did);
5477 if (vport->phba->nvmet_support)
5479 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
5480 lpfc_rscn_payload_check(vport, did) == 0)
5482 ndlp = lpfc_nlp_init(vport, did);
5485 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5487 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5488 "6453 Setup New Node 2B_DISC x%x "
5489 "Data:x%x x%x x%x\n",
5490 ndlp->nlp_DID, ndlp->nlp_flag,
5491 ndlp->nlp_state, vport->fc_flag);
5493 spin_lock_irq(&ndlp->lock);
5494 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5495 spin_unlock_irq(&ndlp->lock);
5499 /* The NVME Target does not want to actively manage an rport.
5500 * The goal is to allow the target to reset its state and clear
5501 * pending IO in preparation for the initiator to recover.
5503 if ((vport->fc_flag & FC_RSCN_MODE) &&
5504 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
5505 if (lpfc_rscn_payload_check(vport, did)) {
5507 /* Since this node is marked for discovery,
5508 * delay timeout is not needed.
5510 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5512 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5513 "6455 Setup RSCN Node 2B_DISC x%x "
5514 "Data:x%x x%x x%x\n",
5515 ndlp->nlp_DID, ndlp->nlp_flag,
5516 ndlp->nlp_state, vport->fc_flag);
5518 /* NVME Target mode waits until rport is known to be
5519 * impacted by the RSCN before it transitions. No
5520 * active management - just go to NPR provided the
5521 * node had a valid login.
5523 if (vport->phba->nvmet_support)
5526 /* If we've already received a PLOGI from this NPort
5527 * we don't need to try to discover it again.
5529 if (ndlp->nlp_flag & NLP_RCV_PLOGI &&
5531 (NLP_FCP_TARGET | NLP_NVME_TARGET)))
5534 ndlp->nlp_prev_state = ndlp->nlp_state;
5535 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5537 spin_lock_irq(&ndlp->lock);
5538 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5539 spin_unlock_irq(&ndlp->lock);
5541 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5542 "6456 Skip Setup RSCN Node x%x "
5543 "Data:x%x x%x x%x\n",
5544 ndlp->nlp_DID, ndlp->nlp_flag,
5545 ndlp->nlp_state, vport->fc_flag);
5549 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5550 "6457 Setup Active Node 2B_DISC x%x "
5551 "Data:x%x x%x x%x\n",
5552 ndlp->nlp_DID, ndlp->nlp_flag,
5553 ndlp->nlp_state, vport->fc_flag);
5555 /* If the initiator received a PLOGI from this NPort or if the
5556 * initiator is already in the process of discovery on it,
5557 * there's no need to try to discover it again.
5559 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
5560 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5561 (!vport->phba->nvmet_support &&
5562 ndlp->nlp_flag & NLP_RCV_PLOGI))
5565 if (vport->phba->nvmet_support)
5568 /* Moving to NPR state clears unsolicited flags and
5569 * allows for rediscovery
5571 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5573 spin_lock_irq(&ndlp->lock);
5574 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5575 spin_unlock_irq(&ndlp->lock);
5580 /* Build a list of nodes to discover based on the loopmap */
5582 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
5584 struct lpfc_hba *phba = vport->phba;
5586 uint32_t alpa, index;
5588 if (!lpfc_is_link_up(phba))
5591 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
5594 /* Check for loop map present or not */
5595 if (phba->alpa_map[0]) {
5596 for (j = 1; j <= phba->alpa_map[0]; j++) {
5597 alpa = phba->alpa_map[j];
5598 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
5600 lpfc_setup_disc_node(vport, alpa);
5603 /* No alpamap, so try all alpa's */
5604 for (j = 0; j < FC_MAXLOOP; j++) {
5605 /* If cfg_scan_down is set, start from highest
5606 * ALPA (0xef) to lowest (0x1).
5608 if (vport->cfg_scan_down)
5611 index = FC_MAXLOOP - j - 1;
5612 alpa = lpfcAlpaArray[index];
5613 if ((vport->fc_myDID & 0xff) == alpa)
5615 lpfc_setup_disc_node(vport, alpa);
5623 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
5626 struct lpfc_sli *psli = &phba->sli;
5627 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING];
5628 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING];
5632 * if it's not a physical port or if we already send
5633 * clear_la then don't send it.
5635 if ((phba->link_state >= LPFC_CLEAR_LA) ||
5636 (vport->port_type != LPFC_PHYSICAL_PORT) ||
5637 (phba->sli_rev == LPFC_SLI_REV4))
5640 /* Link up discovery */
5641 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
5642 phba->link_state = LPFC_CLEAR_LA;
5643 lpfc_clear_la(phba, mbox);
5644 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
5645 mbox->vport = vport;
5646 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5647 if (rc == MBX_NOT_FINISHED) {
5648 mempool_free(mbox, phba->mbox_mem_pool);
5649 lpfc_disc_flush_list(vport);
5650 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5651 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5652 phba->link_state = LPFC_HBA_ERROR;
5657 /* Reg_vpi to tell firmware to resume normal operations */
5659 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
5661 LPFC_MBOXQ_t *regvpimbox;
5663 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5665 lpfc_reg_vpi(vport, regvpimbox);
5666 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
5667 regvpimbox->vport = vport;
5668 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
5669 == MBX_NOT_FINISHED) {
5670 mempool_free(regvpimbox, phba->mbox_mem_pool);
5675 /* Start Link up / RSCN discovery on NPR nodes */
5677 lpfc_disc_start(struct lpfc_vport *vport)
5679 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5680 struct lpfc_hba *phba = vport->phba;
5682 uint32_t clear_la_pending;
5684 if (!lpfc_is_link_up(phba)) {
5685 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5686 "3315 Link is not up %x\n",
5691 if (phba->link_state == LPFC_CLEAR_LA)
5692 clear_la_pending = 1;
5694 clear_la_pending = 0;
5696 if (vport->port_state < LPFC_VPORT_READY)
5697 vport->port_state = LPFC_DISC_AUTH;
5699 lpfc_set_disctmo(vport);
5701 vport->fc_prevDID = vport->fc_myDID;
5702 vport->num_disc_nodes = 0;
5704 /* Start Discovery state <hba_state> */
5705 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5706 "0202 Start Discovery port state x%x "
5707 "flg x%x Data: x%x x%x x%x\n",
5708 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
5709 vport->fc_adisc_cnt, vport->fc_npr_cnt);
5711 /* First do ADISCs - if any */
5712 num_sent = lpfc_els_disc_adisc(vport);
5717 /* Register the VPI for SLI3, NPIV only. */
5718 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5719 !(vport->fc_flag & FC_PT2PT) &&
5720 !(vport->fc_flag & FC_RSCN_MODE) &&
5721 (phba->sli_rev < LPFC_SLI_REV4)) {
5722 lpfc_issue_clear_la(phba, vport);
5723 lpfc_issue_reg_vpi(phba, vport);
5728 * For SLI2, we need to set port_state to READY and continue
5731 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
5732 /* If we get here, there is nothing to ADISC */
5733 lpfc_issue_clear_la(phba, vport);
5735 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
5736 vport->num_disc_nodes = 0;
5737 /* go thru NPR nodes and issue ELS PLOGIs */
5738 if (vport->fc_npr_cnt)
5739 lpfc_els_disc_plogi(vport);
5741 if (!vport->num_disc_nodes) {
5742 spin_lock_irq(shost->host_lock);
5743 vport->fc_flag &= ~FC_NDISC_ACTIVE;
5744 spin_unlock_irq(shost->host_lock);
5745 lpfc_can_disctmo(vport);
5748 vport->port_state = LPFC_VPORT_READY;
5750 /* Next do PLOGIs - if any */
5751 num_sent = lpfc_els_disc_plogi(vport);
5756 if (vport->fc_flag & FC_RSCN_MODE) {
5757 /* Check to see if more RSCNs came in while we
5758 * were processing this one.
5760 if ((vport->fc_rscn_id_cnt == 0) &&
5761 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
5762 spin_lock_irq(shost->host_lock);
5763 vport->fc_flag &= ~FC_RSCN_MODE;
5764 spin_unlock_irq(shost->host_lock);
5765 lpfc_can_disctmo(vport);
5767 lpfc_els_handle_rscn(vport);
5774 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
5775 * ring the match the sppecified nodelist.
5778 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
5780 LIST_HEAD(completions);
5782 struct lpfc_iocbq *iocb, *next_iocb;
5783 struct lpfc_sli_ring *pring;
5785 pring = lpfc_phba_elsring(phba);
5786 if (unlikely(!pring))
5789 /* Error matching iocb on txq or txcmplq
5790 * First check the txq.
5792 spin_lock_irq(&phba->hbalock);
5793 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
5794 if (iocb->context1 != ndlp) {
5798 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
5799 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
5801 list_move_tail(&iocb->list, &completions);
5805 /* Next check the txcmplq */
5806 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
5807 if (iocb->context1 != ndlp) {
5811 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
5812 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
5813 lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
5816 spin_unlock_irq(&phba->hbalock);
5818 /* Make sure HBA is alive */
5819 lpfc_issue_hb_tmo(phba);
5821 /* Cancel all the IOCBs from the completions list */
5822 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
5827 lpfc_disc_flush_list(struct lpfc_vport *vport)
5829 struct lpfc_nodelist *ndlp, *next_ndlp;
5830 struct lpfc_hba *phba = vport->phba;
5832 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
5833 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5835 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5836 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
5837 lpfc_free_tx(phba, ndlp);
5844 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
5846 lpfc_els_flush_rscn(vport);
5847 lpfc_els_flush_cmd(vport);
5848 lpfc_disc_flush_list(vport);
5851 /*****************************************************************************/
5853 * NAME: lpfc_disc_timeout
5855 * FUNCTION: Fibre Channel driver discovery timeout routine.
5857 * EXECUTION ENVIRONMENT: interrupt only
5865 /*****************************************************************************/
5867 lpfc_disc_timeout(struct timer_list *t)
5869 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo);
5870 struct lpfc_hba *phba = vport->phba;
5871 uint32_t tmo_posted;
5872 unsigned long flags = 0;
5874 if (unlikely(!phba))
5877 spin_lock_irqsave(&vport->work_port_lock, flags);
5878 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
5880 vport->work_port_events |= WORKER_DISC_TMO;
5881 spin_unlock_irqrestore(&vport->work_port_lock, flags);
5884 lpfc_worker_wake_up(phba);
5889 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
5891 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5892 struct lpfc_hba *phba = vport->phba;
5893 struct lpfc_sli *psli = &phba->sli;
5894 struct lpfc_nodelist *ndlp, *next_ndlp;
5895 LPFC_MBOXQ_t *initlinkmbox;
5896 int rc, clrlaerr = 0;
5898 if (!(vport->fc_flag & FC_DISC_TMO))
5901 spin_lock_irq(shost->host_lock);
5902 vport->fc_flag &= ~FC_DISC_TMO;
5903 spin_unlock_irq(shost->host_lock);
5905 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
5906 "disc timeout: state:x%x rtry:x%x flg:x%x",
5907 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
5909 switch (vport->port_state) {
5911 case LPFC_LOCAL_CFG_LINK:
5913 * port_state is identically LPFC_LOCAL_CFG_LINK while
5914 * waiting for FAN timeout
5916 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
5917 "0221 FAN timeout\n");
5919 /* Start discovery by sending FLOGI, clean up old rpis */
5920 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5922 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
5924 if (ndlp->nlp_type & NLP_FABRIC) {
5925 /* Clean up the ndlp on Fabric connections */
5926 lpfc_drop_node(vport, ndlp);
5928 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
5929 /* Fail outstanding IO now since device
5930 * is marked for PLOGI.
5932 lpfc_unreg_rpi(vport, ndlp);
5935 if (vport->port_state != LPFC_FLOGI) {
5936 if (phba->sli_rev <= LPFC_SLI_REV3)
5937 lpfc_initial_flogi(vport);
5939 lpfc_issue_init_vfi(vport);
5946 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
5947 /* Initial FLOGI timeout */
5948 lpfc_printf_vlog(vport, KERN_ERR,
5950 "0222 Initial %s timeout\n",
5951 vport->vpi ? "FDISC" : "FLOGI");
5953 /* Assume no Fabric and go on with discovery.
5954 * Check for outstanding ELS FLOGI to abort.
5957 /* FLOGI failed, so just use loop map to make discovery list */
5958 lpfc_disc_list_loopmap(vport);
5960 /* Start discovery */
5961 lpfc_disc_start(vport);
5964 case LPFC_FABRIC_CFG_LINK:
5965 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5967 lpfc_printf_vlog(vport, KERN_ERR,
5969 "0223 Timeout while waiting for "
5970 "NameServer login\n");
5971 /* Next look for NameServer ndlp */
5972 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5974 lpfc_els_abort(phba, ndlp);
5976 /* ReStart discovery */
5980 /* Check for wait for NameServer Rsp timeout */
5981 lpfc_printf_vlog(vport, KERN_ERR,
5983 "0224 NameServer Query timeout "
5985 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5987 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
5988 /* Try it one more time */
5989 vport->fc_ns_retry++;
5990 vport->gidft_inp = 0;
5991 rc = lpfc_issue_gidft(vport);
5995 vport->fc_ns_retry = 0;
5999 * Discovery is over.
6000 * set port_state to PORT_READY if SLI2.
6001 * cmpl_reg_vpi will set port_state to READY for SLI3.
6003 if (phba->sli_rev < LPFC_SLI_REV4) {
6004 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
6005 lpfc_issue_reg_vpi(phba, vport);
6007 lpfc_issue_clear_la(phba, vport);
6008 vport->port_state = LPFC_VPORT_READY;
6012 /* Setup and issue mailbox INITIALIZE LINK command */
6013 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6014 if (!initlinkmbox) {
6015 lpfc_printf_vlog(vport, KERN_ERR,
6017 "0206 Device Discovery "
6018 "completion error\n");
6019 phba->link_state = LPFC_HBA_ERROR;
6023 lpfc_linkdown(phba);
6024 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
6025 phba->cfg_link_speed);
6026 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
6027 initlinkmbox->vport = vport;
6028 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6029 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
6030 lpfc_set_loopback_flag(phba);
6031 if (rc == MBX_NOT_FINISHED)
6032 mempool_free(initlinkmbox, phba->mbox_mem_pool);
6036 case LPFC_DISC_AUTH:
6037 /* Node Authentication timeout */
6038 lpfc_printf_vlog(vport, KERN_ERR,
6040 "0227 Node Authentication timeout\n");
6041 lpfc_disc_flush_list(vport);
6044 * set port_state to PORT_READY if SLI2.
6045 * cmpl_reg_vpi will set port_state to READY for SLI3.
6047 if (phba->sli_rev < LPFC_SLI_REV4) {
6048 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
6049 lpfc_issue_reg_vpi(phba, vport);
6050 else { /* NPIV Not enabled */
6051 lpfc_issue_clear_la(phba, vport);
6052 vport->port_state = LPFC_VPORT_READY;
6057 case LPFC_VPORT_READY:
6058 if (vport->fc_flag & FC_RSCN_MODE) {
6059 lpfc_printf_vlog(vport, KERN_ERR,
6061 "0231 RSCN timeout Data: x%x "
6063 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
6065 /* Cleanup any outstanding ELS commands */
6066 lpfc_els_flush_cmd(vport);
6068 lpfc_els_flush_rscn(vport);
6069 lpfc_disc_flush_list(vport);
6074 lpfc_printf_vlog(vport, KERN_ERR,
6076 "0273 Unexpected discovery timeout, "
6077 "vport State x%x\n", vport->port_state);
6081 switch (phba->link_state) {
6083 /* CLEAR LA timeout */
6084 lpfc_printf_vlog(vport, KERN_ERR,
6086 "0228 CLEAR LA timeout\n");
6091 lpfc_issue_clear_la(phba, vport);
6093 case LPFC_LINK_UNKNOWN:
6094 case LPFC_WARM_START:
6095 case LPFC_INIT_START:
6096 case LPFC_INIT_MBX_CMDS:
6097 case LPFC_LINK_DOWN:
6098 case LPFC_HBA_ERROR:
6099 lpfc_printf_vlog(vport, KERN_ERR,
6101 "0230 Unexpected timeout, hba link "
6102 "state x%x\n", phba->link_state);
6106 case LPFC_HBA_READY:
6111 lpfc_disc_flush_list(vport);
6112 if (phba->sli_rev != LPFC_SLI_REV4) {
6113 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &=
6114 ~LPFC_STOP_IOCB_EVENT;
6115 psli->sli3_ring[LPFC_FCP_RING].flag &=
6116 ~LPFC_STOP_IOCB_EVENT;
6118 vport->port_state = LPFC_VPORT_READY;
6124 * This routine handles processing a NameServer REG_LOGIN mailbox
6125 * command upon completion. It is setup in the LPFC_MBOXQ
6126 * as the completion routine when the command is
6127 * handed off to the SLI layer.
6130 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6132 MAILBOX_t *mb = &pmb->u.mb;
6133 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
6134 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
6135 struct lpfc_vport *vport = pmb->vport;
6137 pmb->ctx_buf = NULL;
6138 pmb->ctx_ndlp = NULL;
6140 if (phba->sli_rev < LPFC_SLI_REV4)
6141 ndlp->nlp_rpi = mb->un.varWords[0];
6142 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
6143 ndlp->nlp_type |= NLP_FABRIC;
6144 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
6145 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,
6146 "0004 rpi:%x DID:%x flg:%x %d x%px\n",
6147 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
6148 kref_read(&ndlp->kref),
6151 * Start issuing Fabric-Device Management Interface (FDMI) command to
6152 * 0xfffffa (FDMI well known port).
6153 * DHBA -> DPRT -> RHBA -> RPA (physical port)
6154 * DPRT -> RPRT (vports)
6156 if (vport->port_type == LPFC_PHYSICAL_PORT) {
6157 phba->link_flag &= ~LS_CT_VEN_RPA; /* For extra Vendor RPA */
6158 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
6160 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
6164 /* decrement the node reference count held for this callback
6168 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6170 mempool_free(pmb, phba->mbox_mem_pool);
6176 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
6178 uint16_t *rpi = param;
6180 return ndlp->nlp_rpi == *rpi;
6184 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
6186 return memcmp(&ndlp->nlp_portname, param,
6187 sizeof(ndlp->nlp_portname)) == 0;
6190 static struct lpfc_nodelist *
6191 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
6193 struct lpfc_nodelist *ndlp;
6195 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
6196 if (filter(ndlp, param)) {
6197 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
6198 "3185 FIND node filter %ps DID "
6199 "ndlp x%px did x%x flg x%x st x%x "
6200 "xri x%x type x%x rpi x%x\n",
6201 filter, ndlp, ndlp->nlp_DID,
6202 ndlp->nlp_flag, ndlp->nlp_state,
6203 ndlp->nlp_xri, ndlp->nlp_type,
6208 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
6209 "3186 FIND node filter %ps NOT FOUND.\n", filter);
6214 * This routine looks up the ndlp lists for the given RPI. If rpi found it
6215 * returns the node list element pointer else return NULL.
6217 struct lpfc_nodelist *
6218 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
6220 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
6224 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
6225 * returns the node element list pointer else return NULL.
6227 struct lpfc_nodelist *
6228 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
6230 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6231 struct lpfc_nodelist *ndlp;
6233 spin_lock_irq(shost->host_lock);
6234 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
6235 spin_unlock_irq(shost->host_lock);
6240 * This routine looks up the ndlp lists for the given RPI. If the rpi
6241 * is found, the routine returns the node element list pointer else
6244 struct lpfc_nodelist *
6245 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
6247 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6248 struct lpfc_nodelist *ndlp;
6249 unsigned long flags;
6251 spin_lock_irqsave(shost->host_lock, flags);
6252 ndlp = __lpfc_findnode_rpi(vport, rpi);
6253 spin_unlock_irqrestore(shost->host_lock, flags);
6258 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
6259 * @phba: pointer to lpfc hba data structure.
6260 * @vpi: the physical host virtual N_Port identifier.
6262 * This routine finds a vport on a HBA (referred by @phba) through a
6263 * @vpi. The function walks the HBA's vport list and returns the address
6264 * of the vport with the matching @vpi.
6267 * NULL - No vport with the matching @vpi found
6268 * Otherwise - Address to the vport with the matching @vpi.
6271 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
6273 struct lpfc_vport *vport;
6274 unsigned long flags;
6277 /* The physical ports are always vpi 0 - translate is unnecessary. */
6280 * Translate the physical vpi to the logical vpi. The
6281 * vport stores the logical vpi.
6283 for (i = 0; i <= phba->max_vpi; i++) {
6284 if (vpi == phba->vpi_ids[i])
6288 if (i > phba->max_vpi) {
6289 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6290 "2936 Could not find Vport mapped "
6291 "to vpi %d\n", vpi);
6296 spin_lock_irqsave(&phba->port_list_lock, flags);
6297 list_for_each_entry(vport, &phba->port_list, listentry) {
6298 if (vport->vpi == i) {
6299 spin_unlock_irqrestore(&phba->port_list_lock, flags);
6303 spin_unlock_irqrestore(&phba->port_list_lock, flags);
6307 struct lpfc_nodelist *
6308 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did)
6310 struct lpfc_nodelist *ndlp;
6311 int rpi = LPFC_RPI_ALLOC_ERROR;
6313 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
6314 rpi = lpfc_sli4_alloc_rpi(vport->phba);
6315 if (rpi == LPFC_RPI_ALLOC_ERROR)
6319 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
6321 if (vport->phba->sli_rev == LPFC_SLI_REV4)
6322 lpfc_sli4_free_rpi(vport->phba, rpi);
6326 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
6328 spin_lock_init(&ndlp->lock);
6330 lpfc_initialize_node(vport, ndlp, did);
6331 INIT_LIST_HEAD(&ndlp->nlp_listp);
6332 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
6333 ndlp->nlp_rpi = rpi;
6334 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,
6335 "0007 Init New ndlp x%px, rpi:x%x DID:%x "
6336 "flg:x%x refcnt:%d\n",
6337 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID,
6338 ndlp->nlp_flag, kref_read(&ndlp->kref));
6340 ndlp->active_rrqs_xri_bitmap =
6341 mempool_alloc(vport->phba->active_rrq_pool,
6343 if (ndlp->active_rrqs_xri_bitmap)
6344 memset(ndlp->active_rrqs_xri_bitmap, 0,
6345 ndlp->phba->cfg_rrq_xri_bitmap_sz);
6350 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
6351 "node init: did:x%x",
6352 ndlp->nlp_DID, 0, 0);
6357 /* This routine releases all resources associated with a specifc NPort's ndlp
6358 * and mempool_free's the nodelist.
6361 lpfc_nlp_release(struct kref *kref)
6363 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
6365 struct lpfc_vport *vport = ndlp->vport;
6367 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6368 "node release: did:x%x flg:x%x type:x%x",
6369 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
6371 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
6372 "0279 %s: ndlp: x%px did %x refcnt:%d rpi:%x\n",
6373 __func__, ndlp, ndlp->nlp_DID,
6374 kref_read(&ndlp->kref), ndlp->nlp_rpi);
6376 /* remove ndlp from action. */
6377 lpfc_cancel_retry_delay_tmo(vport, ndlp);
6378 lpfc_cleanup_node(vport, ndlp);
6380 /* Not all ELS transactions have registered the RPI with the port.
6381 * In these cases the rpi usage is temporary and the node is
6382 * released when the WQE is completed. Catch this case to free the
6383 * RPI to the pool. Because this node is in the release path, a lock
6384 * is unnecessary. All references are gone and the node has been
6387 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
6388 if (ndlp->nlp_rpi != LPFC_RPI_ALLOC_ERROR &&
6389 !(ndlp->nlp_flag & (NLP_RPI_REGISTERED | NLP_UNREG_INP))) {
6390 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
6391 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
6395 /* The node is not freed back to memory, it is released to a pool so
6396 * the node fields need to be cleaned up.
6399 ndlp->nlp_state = NLP_STE_FREED_NODE;
6401 ndlp->fc4_xpt_flags = 0;
6403 /* free ndlp memory for final ndlp release */
6404 kfree(ndlp->lat_data);
6405 if (ndlp->phba->sli_rev == LPFC_SLI_REV4)
6406 mempool_free(ndlp->active_rrqs_xri_bitmap,
6407 ndlp->phba->active_rrq_pool);
6408 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
6411 /* This routine bumps the reference count for a ndlp structure to ensure
6412 * that one discovery thread won't free a ndlp while another discovery thread
6415 struct lpfc_nodelist *
6416 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
6418 unsigned long flags;
6421 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6422 "node get: did:x%x flg:x%x refcnt:x%x",
6423 ndlp->nlp_DID, ndlp->nlp_flag,
6424 kref_read(&ndlp->kref));
6426 /* The check of ndlp usage to prevent incrementing the
6427 * ndlp reference count that is in the process of being
6430 spin_lock_irqsave(&ndlp->lock, flags);
6431 if (!kref_get_unless_zero(&ndlp->kref)) {
6432 spin_unlock_irqrestore(&ndlp->lock, flags);
6433 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6434 "0276 %s: ndlp:x%px refcnt:%d\n",
6435 __func__, (void *)ndlp, kref_read(&ndlp->kref));
6438 spin_unlock_irqrestore(&ndlp->lock, flags);
6440 WARN_ONCE(!ndlp, "**** %s, get ref on NULL ndlp!", __func__);
6446 /* This routine decrements the reference count for a ndlp structure. If the
6447 * count goes to 0, this indicates the associated nodelist should be freed.
6450 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
6453 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6454 "node put: did:x%x flg:x%x refcnt:x%x",
6455 ndlp->nlp_DID, ndlp->nlp_flag,
6456 kref_read(&ndlp->kref));
6458 WARN_ONCE(!ndlp, "**** %s, put ref on NULL ndlp!", __func__);
6461 return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0;
6464 /* This routine free's the specified nodelist if it is not in use
6465 * by any other discovery thread. This routine returns 1 if the
6466 * ndlp has been freed. A return value of 0 indicates the ndlp is
6467 * not yet been released.
6470 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
6472 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6473 "node not used: did:x%x flg:x%x refcnt:x%x",
6474 ndlp->nlp_DID, ndlp->nlp_flag,
6475 kref_read(&ndlp->kref));
6477 if (kref_read(&ndlp->kref) == 1)
6478 if (lpfc_nlp_put(ndlp))
6484 * lpfc_fcf_inuse - Check if FCF can be unregistered.
6485 * @phba: Pointer to hba context object.
6487 * This function iterate through all FC nodes associated
6488 * will all vports to check if there is any node with
6489 * fc_rports associated with it. If there is an fc_rport
6490 * associated with the node, then the node is either in
6491 * discovered state or its devloss_timer is pending.
6494 lpfc_fcf_inuse(struct lpfc_hba *phba)
6496 struct lpfc_vport **vports;
6498 struct lpfc_nodelist *ndlp;
6499 struct Scsi_Host *shost;
6501 vports = lpfc_create_vport_work_array(phba);
6503 /* If driver cannot allocate memory, indicate fcf is in use */
6507 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6508 shost = lpfc_shost_from_vport(vports[i]);
6509 spin_lock_irq(shost->host_lock);
6511 * IF the CVL_RCVD bit is not set then we have sent the
6513 * If dev_loss fires while we are waiting we do not want to
6516 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
6517 spin_unlock_irq(shost->host_lock);
6521 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
6523 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
6525 spin_unlock_irq(shost->host_lock);
6527 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
6529 lpfc_printf_log(phba, KERN_INFO,
6530 LOG_NODE | LOG_DISCOVERY,
6531 "2624 RPI %x DID %x flag %x "
6532 "still logged in\n",
6533 ndlp->nlp_rpi, ndlp->nlp_DID,
6537 spin_unlock_irq(shost->host_lock);
6540 lpfc_destroy_vport_work_array(phba, vports);
6545 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
6546 * @phba: Pointer to hba context object.
6547 * @mboxq: Pointer to mailbox object.
6549 * This function frees memory associated with the mailbox command.
6552 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6554 struct lpfc_vport *vport = mboxq->vport;
6555 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6557 if (mboxq->u.mb.mbxStatus) {
6558 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6559 "2555 UNREG_VFI mbxStatus error x%x "
6561 mboxq->u.mb.mbxStatus, vport->port_state);
6563 spin_lock_irq(shost->host_lock);
6564 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
6565 spin_unlock_irq(shost->host_lock);
6566 mempool_free(mboxq, phba->mbox_mem_pool);
6571 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
6572 * @phba: Pointer to hba context object.
6573 * @mboxq: Pointer to mailbox object.
6575 * This function frees memory associated with the mailbox command.
6578 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6580 struct lpfc_vport *vport = mboxq->vport;
6582 if (mboxq->u.mb.mbxStatus) {
6583 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6584 "2550 UNREG_FCFI mbxStatus error x%x "
6586 mboxq->u.mb.mbxStatus, vport->port_state);
6588 mempool_free(mboxq, phba->mbox_mem_pool);
6593 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
6594 * @phba: Pointer to hba context object.
6596 * This function prepare the HBA for unregistering the currently registered
6597 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
6601 lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
6603 struct lpfc_vport **vports;
6604 struct lpfc_nodelist *ndlp;
6605 struct Scsi_Host *shost;
6608 /* Unregister RPIs */
6609 if (lpfc_fcf_inuse(phba))
6610 lpfc_unreg_hba_rpis(phba);
6612 /* At this point, all discovery is aborted */
6613 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
6615 /* Unregister VPIs */
6616 vports = lpfc_create_vport_work_array(phba);
6617 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
6618 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6619 /* Stop FLOGI/FDISC retries */
6620 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
6622 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
6623 lpfc_cleanup_pending_mbox(vports[i]);
6624 if (phba->sli_rev == LPFC_SLI_REV4)
6625 lpfc_sli4_unreg_all_rpis(vports[i]);
6626 lpfc_mbx_unreg_vpi(vports[i]);
6627 shost = lpfc_shost_from_vport(vports[i]);
6628 spin_lock_irq(shost->host_lock);
6629 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6630 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
6631 spin_unlock_irq(shost->host_lock);
6633 lpfc_destroy_vport_work_array(phba, vports);
6634 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) {
6635 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
6637 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
6638 lpfc_cleanup_pending_mbox(phba->pport);
6639 if (phba->sli_rev == LPFC_SLI_REV4)
6640 lpfc_sli4_unreg_all_rpis(phba->pport);
6641 lpfc_mbx_unreg_vpi(phba->pport);
6642 shost = lpfc_shost_from_vport(phba->pport);
6643 spin_lock_irq(shost->host_lock);
6644 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6645 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED;
6646 spin_unlock_irq(shost->host_lock);
6649 /* Cleanup any outstanding ELS commands */
6650 lpfc_els_flush_all_cmd(phba);
6652 /* Unregister the physical port VFI */
6653 rc = lpfc_issue_unreg_vfi(phba->pport);
6658 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
6659 * @phba: Pointer to hba context object.
6661 * This function issues synchronous unregister FCF mailbox command to HBA to
6662 * unregister the currently registered FCF record. The driver does not reset
6663 * the driver FCF usage state flags.
6665 * Return 0 if successfully issued, none-zero otherwise.
6668 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
6673 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6675 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6676 "2551 UNREG_FCFI mbox allocation failed"
6677 "HBA state x%x\n", phba->pport->port_state);
6680 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
6681 mbox->vport = phba->pport;
6682 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
6683 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6685 if (rc == MBX_NOT_FINISHED) {
6686 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6687 "2552 Unregister FCFI command failed rc x%x "
6689 rc, phba->pport->port_state);
6696 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
6697 * @phba: Pointer to hba context object.
6699 * This function unregisters the currently reigstered FCF. This function
6700 * also tries to find another FCF for discovery by rescan the HBA FCF table.
6703 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
6707 /* Preparation for unregistering fcf */
6708 rc = lpfc_unregister_fcf_prep(phba);
6710 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6711 "2748 Failed to prepare for unregistering "
6712 "HBA's FCF record: rc=%d\n", rc);
6716 /* Now, unregister FCF record and reset HBA FCF state */
6717 rc = lpfc_sli4_unregister_fcf(phba);
6720 /* Reset HBA FCF states after successful unregister FCF */
6721 phba->fcf.fcf_flag = 0;
6722 phba->fcf.current_rec.flag = 0;
6725 * If driver is not unloading, check if there is any other
6726 * FCF record that can be used for discovery.
6728 if ((phba->pport->load_flag & FC_UNLOADING) ||
6729 (phba->link_state < LPFC_LINK_UP))
6732 /* This is considered as the initial FCF discovery scan */
6733 spin_lock_irq(&phba->hbalock);
6734 phba->fcf.fcf_flag |= FCF_INIT_DISC;
6735 spin_unlock_irq(&phba->hbalock);
6737 /* Reset FCF roundrobin bmask for new discovery */
6738 lpfc_sli4_clear_fcf_rr_bmask(phba);
6740 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6743 spin_lock_irq(&phba->hbalock);
6744 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
6745 spin_unlock_irq(&phba->hbalock);
6746 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6747 "2553 lpfc_unregister_unused_fcf failed "
6748 "to read FCF record HBA state x%x\n",
6749 phba->pport->port_state);
6754 * lpfc_unregister_fcf - Unregister the currently registered fcf record
6755 * @phba: Pointer to hba context object.
6757 * This function just unregisters the currently reigstered FCF. It does not
6758 * try to find another FCF for discovery.
6761 lpfc_unregister_fcf(struct lpfc_hba *phba)
6765 /* Preparation for unregistering fcf */
6766 rc = lpfc_unregister_fcf_prep(phba);
6768 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6769 "2749 Failed to prepare for unregistering "
6770 "HBA's FCF record: rc=%d\n", rc);
6774 /* Now, unregister FCF record and reset HBA FCF state */
6775 rc = lpfc_sli4_unregister_fcf(phba);
6778 /* Set proper HBA FCF states after successful unregister FCF */
6779 spin_lock_irq(&phba->hbalock);
6780 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
6781 spin_unlock_irq(&phba->hbalock);
6785 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
6786 * @phba: Pointer to hba context object.
6788 * This function check if there are any connected remote port for the FCF and
6789 * if all the devices are disconnected, this function unregister FCFI.
6790 * This function also tries to use another FCF for discovery.
6793 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
6796 * If HBA is not running in FIP mode, if HBA does not support
6797 * FCoE, if FCF discovery is ongoing, or if FCF has not been
6798 * registered, do nothing.
6800 spin_lock_irq(&phba->hbalock);
6801 if (!(phba->hba_flag & HBA_FCOE_MODE) ||
6802 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
6803 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
6804 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
6805 (phba->pport->port_state == LPFC_FLOGI)) {
6806 spin_unlock_irq(&phba->hbalock);
6809 spin_unlock_irq(&phba->hbalock);
6811 if (lpfc_fcf_inuse(phba))
6814 lpfc_unregister_fcf_rescan(phba);
6818 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
6819 * @phba: Pointer to hba context object.
6820 * @buff: Buffer containing the FCF connection table as in the config
6822 * This function create driver data structure for the FCF connection
6823 * record table read from config region 23.
6826 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
6829 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6830 struct lpfc_fcf_conn_hdr *conn_hdr;
6831 struct lpfc_fcf_conn_rec *conn_rec;
6832 uint32_t record_count;
6835 /* Free the current connect table */
6836 list_for_each_entry_safe(conn_entry, next_conn_entry,
6837 &phba->fcf_conn_rec_list, list) {
6838 list_del_init(&conn_entry->list);
6842 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
6843 record_count = conn_hdr->length * sizeof(uint32_t)/
6844 sizeof(struct lpfc_fcf_conn_rec);
6846 conn_rec = (struct lpfc_fcf_conn_rec *)
6847 (buff + sizeof(struct lpfc_fcf_conn_hdr));
6849 for (i = 0; i < record_count; i++) {
6850 if (!(conn_rec[i].flags & FCFCNCT_VALID))
6852 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
6855 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6856 "2566 Failed to allocate connection"
6861 memcpy(&conn_entry->conn_rec, &conn_rec[i],
6862 sizeof(struct lpfc_fcf_conn_rec));
6863 list_add_tail(&conn_entry->list,
6864 &phba->fcf_conn_rec_list);
6867 if (!list_empty(&phba->fcf_conn_rec_list)) {
6869 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list,
6871 conn_rec = &conn_entry->conn_rec;
6872 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6873 "3345 FCF connection list rec[%02d]: "
6874 "flags:x%04x, vtag:x%04x, "
6875 "fabric_name:x%02x:%02x:%02x:%02x:"
6876 "%02x:%02x:%02x:%02x, "
6877 "switch_name:x%02x:%02x:%02x:%02x:"
6878 "%02x:%02x:%02x:%02x\n", i++,
6879 conn_rec->flags, conn_rec->vlan_tag,
6880 conn_rec->fabric_name[0],
6881 conn_rec->fabric_name[1],
6882 conn_rec->fabric_name[2],
6883 conn_rec->fabric_name[3],
6884 conn_rec->fabric_name[4],
6885 conn_rec->fabric_name[5],
6886 conn_rec->fabric_name[6],
6887 conn_rec->fabric_name[7],
6888 conn_rec->switch_name[0],
6889 conn_rec->switch_name[1],
6890 conn_rec->switch_name[2],
6891 conn_rec->switch_name[3],
6892 conn_rec->switch_name[4],
6893 conn_rec->switch_name[5],
6894 conn_rec->switch_name[6],
6895 conn_rec->switch_name[7]);
6901 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6902 * @phba: Pointer to hba context object.
6903 * @buff: Buffer containing the FCoE parameter data structure.
6905 * This function update driver data structure with config
6906 * parameters read from config region 23.
6909 lpfc_read_fcoe_param(struct lpfc_hba *phba,
6912 struct lpfc_fip_param_hdr *fcoe_param_hdr;
6913 struct lpfc_fcoe_params *fcoe_param;
6915 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
6917 fcoe_param = (struct lpfc_fcoe_params *)
6918 (buff + sizeof(struct lpfc_fip_param_hdr));
6920 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
6921 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
6924 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
6925 phba->valid_vlan = 1;
6926 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
6930 phba->fc_map[0] = fcoe_param->fc_map[0];
6931 phba->fc_map[1] = fcoe_param->fc_map[1];
6932 phba->fc_map[2] = fcoe_param->fc_map[2];
6937 * lpfc_get_rec_conf23 - Get a record type in config region data.
6938 * @buff: Buffer containing config region 23 data.
6939 * @size: Size of the data buffer.
6940 * @rec_type: Record type to be searched.
6942 * This function searches config region data to find the beginning
6943 * of the record specified by record_type. If record found, this
6944 * function return pointer to the record else return NULL.
6947 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
6949 uint32_t offset = 0, rec_length;
6951 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
6952 (size < sizeof(uint32_t)))
6955 rec_length = buff[offset + 1];
6958 * One TLV record has one word header and number of data words
6959 * specified in the rec_length field of the record header.
6961 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
6963 if (buff[offset] == rec_type)
6964 return &buff[offset];
6966 if (buff[offset] == LPFC_REGION23_LAST_REC)
6969 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
6970 rec_length = buff[offset + 1];
6976 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6977 * @phba: Pointer to lpfc_hba data structure.
6978 * @buff: Buffer containing config region 23 data.
6979 * @size: Size of the data buffer.
6981 * This function parses the FCoE config parameters in config region 23 and
6982 * populate driver data structure with the parameters.
6985 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
6989 uint32_t offset = 0;
6993 * If data size is less than 2 words signature and version cannot be
6996 if (size < 2*sizeof(uint32_t))
6999 /* Check the region signature first */
7000 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
7001 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7002 "2567 Config region 23 has bad signature\n");
7008 /* Check the data structure version */
7009 if (buff[offset] != LPFC_REGION23_VERSION) {
7010 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7011 "2568 Config region 23 has bad version\n");
7016 /* Read FCoE param record */
7017 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
7018 size - offset, FCOE_PARAM_TYPE);
7020 lpfc_read_fcoe_param(phba, rec_ptr);
7022 /* Read FCF connection table */
7023 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
7024 size - offset, FCOE_CONN_TBL_TYPE);
7026 lpfc_read_fcf_conn_tbl(phba, rec_ptr);