1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2019 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>
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_device.h>
34 #include <scsi/scsi_host.h>
35 #include <scsi/scsi_transport_fc.h>
36 #include <scsi/fc/fc_fs.h>
38 #include <linux/nvme-fc-driver.h>
43 #include "lpfc_disc.h"
45 #include "lpfc_sli4.h"
47 #include "lpfc_scsi.h"
48 #include "lpfc_nvme.h"
49 #include "lpfc_logmsg.h"
50 #include "lpfc_crtn.h"
51 #include "lpfc_vport.h"
52 #include "lpfc_debugfs.h"
54 /* AlpaArray for assignment of scsid for scan-down and bind_method */
55 static uint8_t lpfcAlpaArray[] = {
56 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
57 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
58 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
59 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
60 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
61 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
62 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
63 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
64 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
65 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
66 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
67 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
68 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
71 static void lpfc_disc_timeout_handler(struct lpfc_vport *);
72 static void lpfc_disc_flush_list(struct lpfc_vport *vport);
73 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
74 static int lpfc_fcf_inuse(struct lpfc_hba *);
77 lpfc_terminate_rport_io(struct fc_rport *rport)
79 struct lpfc_rport_data *rdata;
80 struct lpfc_nodelist * ndlp;
81 struct lpfc_hba *phba;
83 rdata = rport->dd_data;
86 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
87 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
88 printk(KERN_ERR "Cannot find remote node"
89 " to terminate I/O Data x%x\n",
96 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
97 "rport terminate: sid:x%x did:x%x flg:x%x",
98 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
100 if (ndlp->nlp_sid != NLP_NO_SID) {
101 lpfc_sli_abort_iocb(ndlp->vport,
102 &phba->sli.sli3_ring[LPFC_FCP_RING],
103 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
108 * This function will be called when dev_loss_tmo fire.
111 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
113 struct lpfc_rport_data *rdata;
114 struct lpfc_nodelist * ndlp;
115 struct lpfc_vport *vport;
116 struct Scsi_Host *shost;
117 struct lpfc_hba *phba;
118 struct lpfc_work_evt *evtp;
121 unsigned long iflags;
123 rdata = rport->dd_data;
125 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
131 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
132 "rport devlosscb: sid:x%x did:x%x flg:x%x",
133 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
135 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
136 "3181 dev_loss_callbk x%06x, rport x%px flg x%x\n",
137 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
139 /* Don't defer this if we are in the process of deleting the vport
140 * or unloading the driver. The unload will cleanup the node
141 * appropriately we just need to cleanup the ndlp rport info here.
143 if (vport->load_flag & FC_UNLOADING) {
144 put_node = rdata->pnode != NULL;
145 put_rport = ndlp->rport != NULL;
151 put_device(&rport->dev);
155 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
158 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn))
159 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
160 "6789 rport name %llx != node port name %llx",
162 wwn_to_u64(ndlp->nlp_portname.u.wwn));
164 evtp = &ndlp->dev_loss_evt;
166 if (!list_empty(&evtp->evt_listp)) {
167 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
168 "6790 rport name %llx dev_loss_evt pending",
173 shost = lpfc_shost_from_vport(vport);
174 spin_lock_irqsave(shost->host_lock, iflags);
175 ndlp->nlp_flag |= NLP_IN_DEV_LOSS;
176 spin_unlock_irqrestore(shost->host_lock, iflags);
178 /* We need to hold the node by incrementing the reference
179 * count until this queued work is done
181 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
183 spin_lock_irqsave(&phba->hbalock, iflags);
184 if (evtp->evt_arg1) {
185 evtp->evt = LPFC_EVT_DEV_LOSS;
186 list_add_tail(&evtp->evt_listp, &phba->work_list);
187 lpfc_worker_wake_up(phba);
189 spin_unlock_irqrestore(&phba->hbalock, iflags);
195 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
196 * @ndlp: Pointer to remote node object.
198 * This function is called from the worker thread when devloss timeout timer
199 * expires. For SLI4 host, this routine shall return 1 when at lease one
200 * remote node, including this @ndlp, is still in use of FCF; otherwise, this
201 * routine shall return 0 when there is no remote node is still in use of FCF
202 * when devloss timeout happened to this @ndlp.
205 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
207 struct lpfc_rport_data *rdata;
208 struct fc_rport *rport;
209 struct lpfc_vport *vport;
210 struct lpfc_hba *phba;
211 struct Scsi_Host *shost;
216 unsigned long iflags;
220 shost = lpfc_shost_from_vport(vport);
222 spin_lock_irqsave(shost->host_lock, iflags);
223 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
224 spin_unlock_irqrestore(shost->host_lock, iflags);
229 name = (uint8_t *) &ndlp->nlp_portname;
232 if (phba->sli_rev == LPFC_SLI_REV4)
233 fcf_inuse = lpfc_fcf_inuse(phba);
235 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
236 "rport devlosstmo:did:x%x type:x%x id:x%x",
237 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
239 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
240 "3182 dev_loss_tmo_handler x%06x, rport x%px flg x%x\n",
241 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
244 * lpfc_nlp_remove if reached with dangling rport drops the
245 * reference. To make sure that does not happen clear rport
246 * pointer in ndlp before lpfc_nlp_put.
248 rdata = rport->dd_data;
250 /* Don't defer this if we are in the process of deleting the vport
251 * or unloading the driver. The unload will cleanup the node
252 * appropriately we just need to cleanup the ndlp rport info here.
254 if (vport->load_flag & FC_UNLOADING) {
255 if (ndlp->nlp_sid != NLP_NO_SID) {
256 /* flush the target */
257 lpfc_sli_abort_iocb(vport,
258 &phba->sli.sli3_ring[LPFC_FCP_RING],
259 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
261 put_node = rdata->pnode != NULL;
266 put_device(&rport->dev);
271 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
272 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
273 "0284 Devloss timeout Ignored on "
274 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
276 *name, *(name+1), *(name+2), *(name+3),
277 *(name+4), *(name+5), *(name+6), *(name+7),
282 put_node = rdata->pnode != NULL;
287 put_device(&rport->dev);
289 if (ndlp->nlp_type & NLP_FABRIC)
292 if (ndlp->nlp_sid != NLP_NO_SID) {
294 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING],
295 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
299 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
300 "0203 Devloss timeout on "
301 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
302 "NPort x%06x Data: x%x x%x x%x\n",
303 *name, *(name+1), *(name+2), *(name+3),
304 *(name+4), *(name+5), *(name+6), *(name+7),
305 ndlp->nlp_DID, ndlp->nlp_flag,
306 ndlp->nlp_state, ndlp->nlp_rpi);
308 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
309 "0204 Devloss timeout on "
310 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
311 "NPort x%06x Data: x%x x%x x%x\n",
312 *name, *(name+1), *(name+2), *(name+3),
313 *(name+4), *(name+5), *(name+6), *(name+7),
314 ndlp->nlp_DID, ndlp->nlp_flag,
315 ndlp->nlp_state, ndlp->nlp_rpi);
318 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
319 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
320 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
321 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) &&
322 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE))
323 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
329 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
330 * @phba: Pointer to hba context object.
331 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
332 * @nlp_did: remote node identifer with devloss timeout.
334 * This function is called from the worker thread after invoking devloss
335 * timeout handler and releasing the reference count for the ndlp with
336 * which the devloss timeout was handled for SLI4 host. For the devloss
337 * timeout of the last remote node which had been in use of FCF, when this
338 * routine is invoked, it shall be guaranteed that none of the remote are
339 * in-use of FCF. When devloss timeout to the last remote using the FCF,
340 * if the FIP engine is neither in FCF table scan process nor roundrobin
341 * failover process, the in-use FCF shall be unregistered. If the FIP
342 * engine is in FCF discovery process, the devloss timeout state shall
343 * be set for either the FCF table scan process or roundrobin failover
344 * process to unregister the in-use FCF.
347 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
350 /* If devloss timeout happened to a remote node when FCF had no
351 * longer been in-use, do nothing.
356 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
357 spin_lock_irq(&phba->hbalock);
358 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
359 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
360 spin_unlock_irq(&phba->hbalock);
363 phba->hba_flag |= HBA_DEVLOSS_TMO;
364 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
365 "2847 Last remote node (x%x) using "
366 "FCF devloss tmo\n", nlp_did);
368 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
369 spin_unlock_irq(&phba->hbalock);
370 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
371 "2868 Devloss tmo to FCF rediscovery "
375 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
376 spin_unlock_irq(&phba->hbalock);
377 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
378 "2869 Devloss tmo to idle FIP engine, "
379 "unreg in-use FCF and rescan.\n");
380 /* Unregister in-use FCF and rescan */
381 lpfc_unregister_fcf_rescan(phba);
384 spin_unlock_irq(&phba->hbalock);
385 if (phba->hba_flag & FCF_TS_INPROG)
386 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
387 "2870 FCF table scan in progress\n");
388 if (phba->hba_flag & FCF_RR_INPROG)
389 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
390 "2871 FLOGI roundrobin FCF failover "
393 lpfc_unregister_unused_fcf(phba);
397 * lpfc_alloc_fast_evt - Allocates data structure for posting event
398 * @phba: Pointer to hba context object.
400 * This function is called from the functions which need to post
401 * events from interrupt context. This function allocates data
402 * structure required for posting event. It also keeps track of
403 * number of events pending and prevent event storm when there are
406 struct lpfc_fast_path_event *
407 lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
408 struct lpfc_fast_path_event *ret;
410 /* If there are lot of fast event do not exhaust memory due to this */
411 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
414 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
417 atomic_inc(&phba->fast_event_count);
418 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
419 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
425 * lpfc_free_fast_evt - Frees event data structure
426 * @phba: Pointer to hba context object.
427 * @evt: Event object which need to be freed.
429 * This function frees the data structure required for posting
433 lpfc_free_fast_evt(struct lpfc_hba *phba,
434 struct lpfc_fast_path_event *evt) {
436 atomic_dec(&phba->fast_event_count);
441 * lpfc_send_fastpath_evt - Posts events generated from fast path
442 * @phba: Pointer to hba context object.
443 * @evtp: Event data structure.
445 * This function is called from worker thread, when the interrupt
446 * context need to post an event. This function posts the event
447 * to fc transport netlink interface.
450 lpfc_send_fastpath_evt(struct lpfc_hba *phba,
451 struct lpfc_work_evt *evtp)
453 unsigned long evt_category, evt_sub_category;
454 struct lpfc_fast_path_event *fast_evt_data;
456 uint32_t evt_data_size;
457 struct Scsi_Host *shost;
459 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
462 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
463 evt_sub_category = (unsigned long) fast_evt_data->un.
464 fabric_evt.subcategory;
465 shost = lpfc_shost_from_vport(fast_evt_data->vport);
466 if (evt_category == FC_REG_FABRIC_EVENT) {
467 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
468 evt_data = (char *) &fast_evt_data->un.read_check_error;
469 evt_data_size = sizeof(fast_evt_data->un.
471 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
472 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
473 evt_data = (char *) &fast_evt_data->un.fabric_evt;
474 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
476 lpfc_free_fast_evt(phba, fast_evt_data);
479 } else if (evt_category == FC_REG_SCSI_EVENT) {
480 switch (evt_sub_category) {
481 case LPFC_EVENT_QFULL:
482 case LPFC_EVENT_DEVBSY:
483 evt_data = (char *) &fast_evt_data->un.scsi_evt;
484 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
486 case LPFC_EVENT_CHECK_COND:
487 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
488 evt_data_size = sizeof(fast_evt_data->un.
491 case LPFC_EVENT_VARQUEDEPTH:
492 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
493 evt_data_size = sizeof(fast_evt_data->un.
497 lpfc_free_fast_evt(phba, fast_evt_data);
501 lpfc_free_fast_evt(phba, fast_evt_data);
505 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
506 fc_host_post_vendor_event(shost,
507 fc_get_event_number(),
512 lpfc_free_fast_evt(phba, fast_evt_data);
517 lpfc_work_list_done(struct lpfc_hba *phba)
519 struct lpfc_work_evt *evtp = NULL;
520 struct lpfc_nodelist *ndlp;
525 spin_lock_irq(&phba->hbalock);
526 while (!list_empty(&phba->work_list)) {
527 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
529 spin_unlock_irq(&phba->hbalock);
532 case LPFC_EVT_ELS_RETRY:
533 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
534 lpfc_els_retry_delay_handler(ndlp);
535 free_evt = 0; /* evt is part of ndlp */
536 /* decrement the node reference count held
537 * for this queued work
541 case LPFC_EVT_DEV_LOSS:
542 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
543 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
545 /* decrement the node reference count held for
548 nlp_did = ndlp->nlp_DID;
550 if (phba->sli_rev == LPFC_SLI_REV4)
551 lpfc_sli4_post_dev_loss_tmo_handler(phba,
555 case LPFC_EVT_ONLINE:
556 if (phba->link_state < LPFC_LINK_DOWN)
557 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
559 *(int *) (evtp->evt_arg1) = 0;
560 complete((struct completion *)(evtp->evt_arg2));
562 case LPFC_EVT_OFFLINE_PREP:
563 if (phba->link_state >= LPFC_LINK_DOWN)
564 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
565 *(int *)(evtp->evt_arg1) = 0;
566 complete((struct completion *)(evtp->evt_arg2));
568 case LPFC_EVT_OFFLINE:
570 lpfc_sli_brdrestart(phba);
571 *(int *)(evtp->evt_arg1) =
572 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
573 lpfc_unblock_mgmt_io(phba);
574 complete((struct completion *)(evtp->evt_arg2));
576 case LPFC_EVT_WARM_START:
578 lpfc_reset_barrier(phba);
579 lpfc_sli_brdreset(phba);
580 lpfc_hba_down_post(phba);
581 *(int *)(evtp->evt_arg1) =
582 lpfc_sli_brdready(phba, HS_MBRDY);
583 lpfc_unblock_mgmt_io(phba);
584 complete((struct completion *)(evtp->evt_arg2));
588 *(int *)(evtp->evt_arg1)
589 = (phba->pport->stopped)
590 ? 0 : lpfc_sli_brdkill(phba);
591 lpfc_unblock_mgmt_io(phba);
592 complete((struct completion *)(evtp->evt_arg2));
594 case LPFC_EVT_FASTPATH_MGMT_EVT:
595 lpfc_send_fastpath_evt(phba, evtp);
598 case LPFC_EVT_RESET_HBA:
599 if (!(phba->pport->load_flag & FC_UNLOADING))
600 lpfc_reset_hba(phba);
605 spin_lock_irq(&phba->hbalock);
607 spin_unlock_irq(&phba->hbalock);
612 lpfc_work_done(struct lpfc_hba *phba)
614 struct lpfc_sli_ring *pring;
615 uint32_t ha_copy, status, control, work_port_events;
616 struct lpfc_vport **vports;
617 struct lpfc_vport *vport;
620 spin_lock_irq(&phba->hbalock);
621 ha_copy = phba->work_ha;
623 spin_unlock_irq(&phba->hbalock);
625 /* First, try to post the next mailbox command to SLI4 device */
626 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
627 lpfc_sli4_post_async_mbox(phba);
629 if (ha_copy & HA_ERATT)
630 /* Handle the error attention event */
631 lpfc_handle_eratt(phba);
633 if (ha_copy & HA_MBATT)
634 lpfc_sli_handle_mb_event(phba);
636 if (ha_copy & HA_LATT)
637 lpfc_handle_latt(phba);
639 /* Process SLI4 events */
640 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
641 if (phba->hba_flag & HBA_RRQ_ACTIVE)
642 lpfc_handle_rrq_active(phba);
643 if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
644 lpfc_sli4_els_xri_abort_event_proc(phba);
645 if (phba->hba_flag & ASYNC_EVENT)
646 lpfc_sli4_async_event_proc(phba);
647 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
648 spin_lock_irq(&phba->hbalock);
649 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
650 spin_unlock_irq(&phba->hbalock);
651 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
653 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
654 lpfc_sli4_fcf_redisc_event_proc(phba);
657 vports = lpfc_create_vport_work_array(phba);
659 for (i = 0; i <= phba->max_vports; i++) {
661 * We could have no vports in array if unloading, so if
662 * this happens then just use the pport
664 if (vports[i] == NULL && i == 0)
670 spin_lock_irq(&vport->work_port_lock);
671 work_port_events = vport->work_port_events;
672 vport->work_port_events &= ~work_port_events;
673 spin_unlock_irq(&vport->work_port_lock);
674 if (work_port_events & WORKER_DISC_TMO)
675 lpfc_disc_timeout_handler(vport);
676 if (work_port_events & WORKER_ELS_TMO)
677 lpfc_els_timeout_handler(vport);
678 if (work_port_events & WORKER_HB_TMO)
679 lpfc_hb_timeout_handler(phba);
680 if (work_port_events & WORKER_MBOX_TMO)
681 lpfc_mbox_timeout_handler(phba);
682 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
683 lpfc_unblock_fabric_iocbs(phba);
684 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
685 lpfc_ramp_down_queue_handler(phba);
686 if (work_port_events & WORKER_DELAYED_DISC_TMO)
687 lpfc_delayed_disc_timeout_handler(vport);
689 lpfc_destroy_vport_work_array(phba, vports);
691 pring = lpfc_phba_elsring(phba);
692 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
693 status >>= (4*LPFC_ELS_RING);
694 if (pring && (status & HA_RXMASK ||
695 pring->flag & LPFC_DEFERRED_RING_EVENT ||
696 phba->hba_flag & HBA_SP_QUEUE_EVT)) {
697 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
698 pring->flag |= LPFC_DEFERRED_RING_EVENT;
699 /* Preserve legacy behavior. */
700 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT))
701 set_bit(LPFC_DATA_READY, &phba->data_flags);
703 /* Driver could have abort request completed in queue
704 * when link goes down. Allow for this transition.
706 if (phba->link_state >= LPFC_LINK_DOWN ||
707 phba->link_flag & LS_MDS_LOOPBACK) {
708 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
709 lpfc_sli_handle_slow_ring_event(phba, pring,
714 if (phba->sli_rev == LPFC_SLI_REV4)
715 lpfc_drain_txq(phba);
717 * Turn on Ring interrupts
719 if (phba->sli_rev <= LPFC_SLI_REV3) {
720 spin_lock_irq(&phba->hbalock);
721 control = readl(phba->HCregaddr);
722 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
723 lpfc_debugfs_slow_ring_trc(phba,
724 "WRK Enable ring: cntl:x%x hacopy:x%x",
725 control, ha_copy, 0);
727 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
728 writel(control, phba->HCregaddr);
729 readl(phba->HCregaddr); /* flush */
731 lpfc_debugfs_slow_ring_trc(phba,
732 "WRK Ring ok: cntl:x%x hacopy:x%x",
733 control, ha_copy, 0);
735 spin_unlock_irq(&phba->hbalock);
738 lpfc_work_list_done(phba);
742 lpfc_do_work(void *p)
744 struct lpfc_hba *phba = p;
747 set_user_nice(current, MIN_NICE);
748 current->flags |= PF_NOFREEZE;
749 phba->data_flags = 0;
751 while (!kthread_should_stop()) {
752 /* wait and check worker queue activities */
753 rc = wait_event_interruptible(phba->work_waitq,
754 (test_and_clear_bit(LPFC_DATA_READY,
756 || kthread_should_stop()));
757 /* Signal wakeup shall terminate the worker thread */
759 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
760 "0433 Wakeup on signal: rc=x%x\n", rc);
764 /* Attend pending lpfc data processing */
765 lpfc_work_done(phba);
767 phba->worker_thread = NULL;
768 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
769 "0432 Worker thread stopped.\n");
774 * This is only called to handle FC worker events. Since this a rare
775 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
776 * embedding it in the IOCB.
779 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
782 struct lpfc_work_evt *evtp;
786 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
787 * be queued to worker thread for processing
789 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
793 evtp->evt_arg1 = arg1;
794 evtp->evt_arg2 = arg2;
797 spin_lock_irqsave(&phba->hbalock, flags);
798 list_add_tail(&evtp->evt_listp, &phba->work_list);
799 spin_unlock_irqrestore(&phba->hbalock, flags);
801 lpfc_worker_wake_up(phba);
807 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
809 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
810 struct lpfc_hba *phba = vport->phba;
811 struct lpfc_nodelist *ndlp, *next_ndlp;
813 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
814 if (!NLP_CHK_NODE_ACT(ndlp))
816 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
818 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
819 ((vport->port_type == LPFC_NPIV_PORT) &&
820 (ndlp->nlp_DID == NameServer_DID)))
821 lpfc_unreg_rpi(vport, ndlp);
823 /* Leave Fabric nodes alone on link down */
824 if ((phba->sli_rev < LPFC_SLI_REV4) &&
825 (!remove && ndlp->nlp_type & NLP_FABRIC))
827 lpfc_disc_state_machine(vport, ndlp, NULL,
830 : NLP_EVT_DEVICE_RECOVERY);
832 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
833 if (phba->sli_rev == LPFC_SLI_REV4)
834 lpfc_sli4_unreg_all_rpis(vport);
835 lpfc_mbx_unreg_vpi(vport);
836 spin_lock_irq(shost->host_lock);
837 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
838 spin_unlock_irq(shost->host_lock);
843 lpfc_port_link_failure(struct lpfc_vport *vport)
845 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
847 /* Cleanup any outstanding received buffers */
848 lpfc_cleanup_rcv_buffers(vport);
850 /* Cleanup any outstanding RSCN activity */
851 lpfc_els_flush_rscn(vport);
853 /* Cleanup any outstanding ELS commands */
854 lpfc_els_flush_cmd(vport);
856 lpfc_cleanup_rpis(vport, 0);
858 /* Turn off discovery timer if its running */
859 lpfc_can_disctmo(vport);
863 lpfc_linkdown_port(struct lpfc_vport *vport)
865 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
867 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
868 fc_host_post_event(shost, fc_get_event_number(),
869 FCH_EVT_LINKDOWN, 0);
871 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
872 "Link Down: state:x%x rtry:x%x flg:x%x",
873 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
875 lpfc_port_link_failure(vport);
877 /* Stop delayed Nport discovery */
878 spin_lock_irq(shost->host_lock);
879 vport->fc_flag &= ~FC_DISC_DELAYED;
880 spin_unlock_irq(shost->host_lock);
881 del_timer_sync(&vport->delayed_disc_tmo);
885 lpfc_linkdown(struct lpfc_hba *phba)
887 struct lpfc_vport *vport = phba->pport;
888 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
889 struct lpfc_vport **vports;
893 if (phba->link_state == LPFC_LINK_DOWN)
896 /* Block all SCSI stack I/Os */
897 lpfc_scsi_dev_block(phba);
899 phba->defer_flogi_acc_flag = false;
901 spin_lock_irq(&phba->hbalock);
902 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
903 spin_unlock_irq(&phba->hbalock);
904 if (phba->link_state > LPFC_LINK_DOWN) {
905 phba->link_state = LPFC_LINK_DOWN;
906 if (phba->sli4_hba.conf_trunk) {
907 phba->trunk_link.link0.state = 0;
908 phba->trunk_link.link1.state = 0;
909 phba->trunk_link.link2.state = 0;
910 phba->trunk_link.link3.state = 0;
911 phba->sli4_hba.link_state.logical_speed =
912 LPFC_LINK_SPEED_UNKNOWN;
914 spin_lock_irq(shost->host_lock);
915 phba->pport->fc_flag &= ~FC_LBIT;
916 spin_unlock_irq(shost->host_lock);
918 vports = lpfc_create_vport_work_array(phba);
919 if (vports != NULL) {
920 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
921 /* Issue a LINK DOWN event to all nodes */
922 lpfc_linkdown_port(vports[i]);
924 vports[i]->fc_myDID = 0;
926 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
927 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
928 if (phba->nvmet_support)
929 lpfc_nvmet_update_targetport(phba);
931 lpfc_nvme_update_localport(vports[i]);
935 lpfc_destroy_vport_work_array(phba, vports);
937 /* Clean up any SLI3 firmware default rpi's */
938 if (phba->sli_rev > LPFC_SLI_REV3)
941 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
943 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
945 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
946 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
947 == MBX_NOT_FINISHED) {
948 mempool_free(mb, phba->mbox_mem_pool);
953 /* Setup myDID for link up if we are in pt2pt mode */
954 if (phba->pport->fc_flag & FC_PT2PT) {
955 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
957 lpfc_config_link(phba, mb);
958 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
960 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
961 == MBX_NOT_FINISHED) {
962 mempool_free(mb, phba->mbox_mem_pool);
965 spin_lock_irq(shost->host_lock);
966 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
967 phba->pport->rcv_flogi_cnt = 0;
968 spin_unlock_irq(shost->host_lock);
974 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
976 struct lpfc_nodelist *ndlp;
978 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
979 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
980 if (!NLP_CHK_NODE_ACT(ndlp))
982 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
984 if (ndlp->nlp_type & NLP_FABRIC) {
985 /* On Linkup its safe to clean up the ndlp
986 * from Fabric connections.
988 if (ndlp->nlp_DID != Fabric_DID)
989 lpfc_unreg_rpi(vport, ndlp);
990 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
991 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
992 /* Fail outstanding IO now since device is
995 lpfc_unreg_rpi(vport, ndlp);
1001 lpfc_linkup_port(struct lpfc_vport *vport)
1003 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1004 struct lpfc_hba *phba = vport->phba;
1006 if ((vport->load_flag & FC_UNLOADING) != 0)
1009 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1010 "Link Up: top:x%x speed:x%x flg:x%x",
1011 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
1013 /* If NPIV is not enabled, only bring the physical port up */
1014 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1015 (vport != phba->pport))
1018 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
1019 fc_host_post_event(shost, fc_get_event_number(),
1022 spin_lock_irq(shost->host_lock);
1023 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
1024 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
1025 vport->fc_flag |= FC_NDISC_ACTIVE;
1026 vport->fc_ns_retry = 0;
1027 spin_unlock_irq(shost->host_lock);
1029 if (vport->fc_flag & FC_LBIT)
1030 lpfc_linkup_cleanup_nodes(vport);
1035 lpfc_linkup(struct lpfc_hba *phba)
1037 struct lpfc_vport **vports;
1039 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
1041 phba->link_state = LPFC_LINK_UP;
1043 /* Unblock fabric iocbs if they are blocked */
1044 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
1045 del_timer_sync(&phba->fabric_block_timer);
1047 vports = lpfc_create_vport_work_array(phba);
1049 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1050 lpfc_linkup_port(vports[i]);
1051 lpfc_destroy_vport_work_array(phba, vports);
1053 /* Clear the pport flogi counter in case the link down was
1054 * absorbed without an ACQE. No lock here - in worker thread
1055 * and discovery is synchronized.
1057 spin_lock_irq(shost->host_lock);
1058 phba->pport->rcv_flogi_cnt = 0;
1059 spin_unlock_irq(shost->host_lock);
1061 /* reinitialize initial FLOGI flag */
1062 phba->hba_flag &= ~(HBA_FLOGI_ISSUED);
1063 phba->defer_flogi_acc_flag = false;
1069 * This routine handles processing a CLEAR_LA mailbox
1070 * command upon completion. It is setup in the LPFC_MBOXQ
1071 * as the completion routine when the command is
1072 * handed off to the SLI layer. SLI3 only.
1075 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1077 struct lpfc_vport *vport = pmb->vport;
1078 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1079 struct lpfc_sli *psli = &phba->sli;
1080 MAILBOX_t *mb = &pmb->u.mb;
1083 /* Since we don't do discovery right now, turn these off here */
1084 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1085 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1087 /* Check for error */
1088 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
1089 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1090 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1091 "0320 CLEAR_LA mbxStatus error x%x hba "
1093 mb->mbxStatus, vport->port_state);
1094 phba->link_state = LPFC_HBA_ERROR;
1098 if (vport->port_type == LPFC_PHYSICAL_PORT)
1099 phba->link_state = LPFC_HBA_READY;
1101 spin_lock_irq(&phba->hbalock);
1102 psli->sli_flag |= LPFC_PROCESS_LA;
1103 control = readl(phba->HCregaddr);
1104 control |= HC_LAINT_ENA;
1105 writel(control, phba->HCregaddr);
1106 readl(phba->HCregaddr); /* flush */
1107 spin_unlock_irq(&phba->hbalock);
1108 mempool_free(pmb, phba->mbox_mem_pool);
1112 /* Device Discovery completes */
1113 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1114 "0225 Device Discovery completes\n");
1115 mempool_free(pmb, phba->mbox_mem_pool);
1117 spin_lock_irq(shost->host_lock);
1118 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
1119 spin_unlock_irq(shost->host_lock);
1121 lpfc_can_disctmo(vport);
1123 /* turn on Link Attention interrupts */
1125 spin_lock_irq(&phba->hbalock);
1126 psli->sli_flag |= LPFC_PROCESS_LA;
1127 control = readl(phba->HCregaddr);
1128 control |= HC_LAINT_ENA;
1129 writel(control, phba->HCregaddr);
1130 readl(phba->HCregaddr); /* flush */
1131 spin_unlock_irq(&phba->hbalock);
1138 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1140 struct lpfc_vport *vport = pmb->vport;
1142 if (pmb->u.mb.mbxStatus)
1145 mempool_free(pmb, phba->mbox_mem_pool);
1147 /* don't perform discovery for SLI4 loopback diagnostic test */
1148 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1149 !(phba->hba_flag & HBA_FCOE_MODE) &&
1150 (phba->link_flag & LS_LOOPBACK_MODE))
1153 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
1154 vport->fc_flag & FC_PUBLIC_LOOP &&
1155 !(vport->fc_flag & FC_LBIT)) {
1156 /* Need to wait for FAN - use discovery timer
1157 * for timeout. port_state is identically
1158 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1160 lpfc_set_disctmo(vport);
1164 /* Start discovery by sending a FLOGI. port_state is identically
1165 * LPFC_FLOGI while waiting for FLOGI cmpl
1167 if (vport->port_state != LPFC_FLOGI)
1168 lpfc_initial_flogi(vport);
1169 else if (vport->fc_flag & FC_PT2PT)
1170 lpfc_disc_start(vport);
1175 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1176 "0306 CONFIG_LINK mbxStatus error x%x "
1178 pmb->u.mb.mbxStatus, vport->port_state);
1179 mempool_free(pmb, phba->mbox_mem_pool);
1181 lpfc_linkdown(phba);
1183 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1184 "0200 CONFIG_LINK bad hba state x%x\n",
1187 lpfc_issue_clear_la(phba, vport);
1192 * lpfc_sli4_clear_fcf_rr_bmask
1193 * @phba pointer to the struct lpfc_hba for this port.
1194 * This fucnction resets the round robin bit mask and clears the
1195 * fcf priority list. The list deletions are done while holding the
1196 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1197 * from the lpfc_fcf_pri record.
1200 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
1202 struct lpfc_fcf_pri *fcf_pri;
1203 struct lpfc_fcf_pri *next_fcf_pri;
1204 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
1205 spin_lock_irq(&phba->hbalock);
1206 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
1207 &phba->fcf.fcf_pri_list, list) {
1208 list_del_init(&fcf_pri->list);
1209 fcf_pri->fcf_rec.flag = 0;
1211 spin_unlock_irq(&phba->hbalock);
1214 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1216 struct lpfc_vport *vport = mboxq->vport;
1218 if (mboxq->u.mb.mbxStatus) {
1219 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1220 "2017 REG_FCFI mbxStatus error x%x "
1222 mboxq->u.mb.mbxStatus, vport->port_state);
1226 /* Start FCoE discovery by sending a FLOGI. */
1227 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1228 /* Set the FCFI registered flag */
1229 spin_lock_irq(&phba->hbalock);
1230 phba->fcf.fcf_flag |= FCF_REGISTERED;
1231 spin_unlock_irq(&phba->hbalock);
1233 /* If there is a pending FCoE event, restart FCF table scan. */
1234 if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
1235 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
1238 /* Mark successful completion of FCF table scan */
1239 spin_lock_irq(&phba->hbalock);
1240 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1241 phba->hba_flag &= ~FCF_TS_INPROG;
1242 if (vport->port_state != LPFC_FLOGI) {
1243 phba->hba_flag |= FCF_RR_INPROG;
1244 spin_unlock_irq(&phba->hbalock);
1245 lpfc_issue_init_vfi(vport);
1248 spin_unlock_irq(&phba->hbalock);
1252 spin_lock_irq(&phba->hbalock);
1253 phba->hba_flag &= ~FCF_RR_INPROG;
1254 spin_unlock_irq(&phba->hbalock);
1256 mempool_free(mboxq, phba->mbox_mem_pool);
1260 * lpfc_fab_name_match - Check if the fcf fabric name match.
1261 * @fab_name: pointer to fabric name.
1262 * @new_fcf_record: pointer to fcf record.
1264 * This routine compare the fcf record's fabric name with provided
1265 * fabric name. If the fabric name are identical this function
1266 * returns 1 else return 0.
1269 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1271 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1273 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1275 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1277 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1279 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1281 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
1283 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1285 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1291 * lpfc_sw_name_match - Check if the fcf switch name match.
1292 * @fab_name: pointer to fabric name.
1293 * @new_fcf_record: pointer to fcf record.
1295 * This routine compare the fcf record's switch name with provided
1296 * switch name. If the switch name are identical this function
1297 * returns 1 else return 0.
1300 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1302 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1304 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1306 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
1308 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1310 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1312 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1314 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1316 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1322 * lpfc_mac_addr_match - Check if the fcf mac address match.
1323 * @mac_addr: pointer to mac address.
1324 * @new_fcf_record: pointer to fcf record.
1326 * This routine compare the fcf record's mac address with HBA's
1327 * FCF mac address. If the mac addresses are identical this function
1328 * returns 1 else return 0.
1331 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
1333 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1335 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1337 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1339 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1341 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1343 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
1349 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1351 return (curr_vlan_id == new_vlan_id);
1355 * lpfc_update_fcf_record - Update driver fcf record
1356 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1357 * @phba: pointer to lpfc hba data structure.
1358 * @fcf_index: Index for the lpfc_fcf_record.
1359 * @new_fcf_record: pointer to hba fcf record.
1361 * This routine updates the driver FCF priority record from the new HBA FCF
1362 * record. This routine is called with the host lock held.
1365 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
1366 struct fcf_record *new_fcf_record
1369 struct lpfc_fcf_pri *fcf_pri;
1371 lockdep_assert_held(&phba->hbalock);
1373 fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1374 fcf_pri->fcf_rec.fcf_index = fcf_index;
1375 /* FCF record priority */
1376 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
1381 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1382 * @fcf: pointer to driver fcf record.
1383 * @new_fcf_record: pointer to fcf record.
1385 * This routine copies the FCF information from the FCF
1386 * record to lpfc_hba data structure.
1389 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1390 struct fcf_record *new_fcf_record)
1393 fcf_rec->fabric_name[0] =
1394 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
1395 fcf_rec->fabric_name[1] =
1396 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
1397 fcf_rec->fabric_name[2] =
1398 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
1399 fcf_rec->fabric_name[3] =
1400 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
1401 fcf_rec->fabric_name[4] =
1402 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
1403 fcf_rec->fabric_name[5] =
1404 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
1405 fcf_rec->fabric_name[6] =
1406 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
1407 fcf_rec->fabric_name[7] =
1408 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
1410 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1411 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1412 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1413 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1414 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1415 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1416 /* FCF record index */
1417 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1418 /* FCF record priority */
1419 fcf_rec->priority = new_fcf_record->fip_priority;
1421 fcf_rec->switch_name[0] =
1422 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
1423 fcf_rec->switch_name[1] =
1424 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
1425 fcf_rec->switch_name[2] =
1426 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
1427 fcf_rec->switch_name[3] =
1428 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
1429 fcf_rec->switch_name[4] =
1430 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
1431 fcf_rec->switch_name[5] =
1432 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
1433 fcf_rec->switch_name[6] =
1434 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
1435 fcf_rec->switch_name[7] =
1436 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
1440 * lpfc_update_fcf_record - Update driver fcf record
1441 * @phba: pointer to lpfc hba data structure.
1442 * @fcf_rec: pointer to driver fcf record.
1443 * @new_fcf_record: pointer to hba fcf record.
1444 * @addr_mode: address mode to be set to the driver fcf record.
1445 * @vlan_id: vlan tag to be set to the driver fcf record.
1446 * @flag: flag bits to be set to the driver fcf record.
1448 * This routine updates the driver FCF record from the new HBA FCF record
1449 * together with the address mode, vlan_id, and other informations. This
1450 * routine is called with the host lock held.
1453 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1454 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1455 uint16_t vlan_id, uint32_t flag)
1457 lockdep_assert_held(&phba->hbalock);
1459 /* Copy the fields from the HBA's FCF record */
1460 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1461 /* Update other fields of driver FCF record */
1462 fcf_rec->addr_mode = addr_mode;
1463 fcf_rec->vlan_id = vlan_id;
1464 fcf_rec->flag |= (flag | RECORD_VALID);
1465 __lpfc_update_fcf_record_pri(phba,
1466 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
1471 * lpfc_register_fcf - Register the FCF with hba.
1472 * @phba: pointer to lpfc hba data structure.
1474 * This routine issues a register fcfi mailbox command to register
1478 lpfc_register_fcf(struct lpfc_hba *phba)
1480 LPFC_MBOXQ_t *fcf_mbxq;
1483 spin_lock_irq(&phba->hbalock);
1484 /* If the FCF is not available do nothing. */
1485 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
1486 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1487 spin_unlock_irq(&phba->hbalock);
1491 /* The FCF is already registered, start discovery */
1492 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
1493 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1494 phba->hba_flag &= ~FCF_TS_INPROG;
1495 if (phba->pport->port_state != LPFC_FLOGI &&
1496 phba->pport->fc_flag & FC_FABRIC) {
1497 phba->hba_flag |= FCF_RR_INPROG;
1498 spin_unlock_irq(&phba->hbalock);
1499 lpfc_initial_flogi(phba->pport);
1502 spin_unlock_irq(&phba->hbalock);
1505 spin_unlock_irq(&phba->hbalock);
1507 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1509 spin_lock_irq(&phba->hbalock);
1510 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1511 spin_unlock_irq(&phba->hbalock);
1515 lpfc_reg_fcfi(phba, fcf_mbxq);
1516 fcf_mbxq->vport = phba->pport;
1517 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1518 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
1519 if (rc == MBX_NOT_FINISHED) {
1520 spin_lock_irq(&phba->hbalock);
1521 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1522 spin_unlock_irq(&phba->hbalock);
1523 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
1530 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1531 * @phba: pointer to lpfc hba data structure.
1532 * @new_fcf_record: pointer to fcf record.
1533 * @boot_flag: Indicates if this record used by boot bios.
1534 * @addr_mode: The address mode to be used by this FCF
1535 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1537 * This routine compare the fcf record with connect list obtained from the
1538 * config region to decide if this FCF can be used for SAN discovery. It returns
1539 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1540 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1541 * is used by boot bios and addr_mode will indicate the addressing mode to be
1542 * used for this FCF when the function returns.
1543 * If the FCF record need to be used with a particular vlan id, the vlan is
1544 * set in the vlan_id on return of the function. If not VLAN tagging need to
1545 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1548 lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1549 struct fcf_record *new_fcf_record,
1550 uint32_t *boot_flag, uint32_t *addr_mode,
1553 struct lpfc_fcf_conn_entry *conn_entry;
1554 int i, j, fcf_vlan_id = 0;
1556 /* Find the lowest VLAN id in the FCF record */
1557 for (i = 0; i < 512; i++) {
1558 if (new_fcf_record->vlan_bitmap[i]) {
1559 fcf_vlan_id = i * 8;
1561 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1569 /* FCF not valid/available or solicitation in progress */
1570 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1571 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||
1572 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))
1575 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
1577 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1579 if (phba->valid_vlan)
1580 *vlan_id = phba->vlan_id;
1582 *vlan_id = LPFC_FCOE_NULL_VID;
1587 * If there are no FCF connection table entry, driver connect to all
1590 if (list_empty(&phba->fcf_conn_rec_list)) {
1592 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1596 * When there are no FCF connect entries, use driver's default
1597 * addressing mode - FPMA.
1599 if (*addr_mode & LPFC_FCF_FPMA)
1600 *addr_mode = LPFC_FCF_FPMA;
1602 /* If FCF record report a vlan id use that vlan id */
1604 *vlan_id = fcf_vlan_id;
1606 *vlan_id = LPFC_FCOE_NULL_VID;
1610 list_for_each_entry(conn_entry,
1611 &phba->fcf_conn_rec_list, list) {
1612 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1615 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1616 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
1619 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1620 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1623 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1625 * If the vlan bit map does not have the bit set for the
1626 * vlan id to be used, then it is not a match.
1628 if (!(new_fcf_record->vlan_bitmap
1629 [conn_entry->conn_rec.vlan_tag / 8] &
1630 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1635 * If connection record does not support any addressing mode,
1636 * skip the FCF record.
1638 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1639 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1643 * Check if the connection record specifies a required
1646 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1647 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1650 * If SPMA required but FCF not support this continue.
1652 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1653 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1654 new_fcf_record) & LPFC_FCF_SPMA))
1658 * If FPMA required but FCF not support this continue.
1660 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1661 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1662 new_fcf_record) & LPFC_FCF_FPMA))
1667 * This fcf record matches filtering criteria.
1669 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1675 * If user did not specify any addressing mode, or if the
1676 * preferred addressing mode specified by user is not supported
1677 * by FCF, allow fabric to pick the addressing mode.
1679 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1682 * If the user specified a required address mode, assign that
1685 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1686 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1687 *addr_mode = (conn_entry->conn_rec.flags &
1689 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1691 * If the user specified a preferred address mode, use the
1692 * addr mode only if FCF support the addr_mode.
1694 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1695 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1696 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1697 (*addr_mode & LPFC_FCF_SPMA))
1698 *addr_mode = LPFC_FCF_SPMA;
1699 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1700 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1701 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1702 (*addr_mode & LPFC_FCF_FPMA))
1703 *addr_mode = LPFC_FCF_FPMA;
1705 /* If matching connect list has a vlan id, use it */
1706 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1707 *vlan_id = conn_entry->conn_rec.vlan_tag;
1709 * If no vlan id is specified in connect list, use the vlan id
1712 else if (fcf_vlan_id)
1713 *vlan_id = fcf_vlan_id;
1715 *vlan_id = LPFC_FCOE_NULL_VID;
1724 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1725 * @phba: pointer to lpfc hba data structure.
1726 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1728 * This function check if there is any fcoe event pending while driver
1729 * scan FCF entries. If there is any pending event, it will restart the
1730 * FCF saning and return 1 else return 0.
1733 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1736 * If the Link is up and no FCoE events while in the
1737 * FCF discovery, no need to restart FCF discovery.
1739 if ((phba->link_state >= LPFC_LINK_UP) &&
1740 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
1743 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1744 "2768 Pending link or FCF event during current "
1745 "handling of the previous event: link_state:x%x, "
1746 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1747 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
1748 phba->fcoe_eventtag);
1750 spin_lock_irq(&phba->hbalock);
1751 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1752 spin_unlock_irq(&phba->hbalock);
1754 if (phba->link_state >= LPFC_LINK_UP) {
1755 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1756 "2780 Restart FCF table scan due to "
1757 "pending FCF event:evt_tag_at_scan:x%x, "
1758 "evt_tag_current:x%x\n",
1759 phba->fcoe_eventtag_at_fcf_scan,
1760 phba->fcoe_eventtag);
1761 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
1764 * Do not continue FCF discovery and clear FCF_TS_INPROG
1767 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1768 "2833 Stop FCF discovery process due to link "
1769 "state change (x%x)\n", phba->link_state);
1770 spin_lock_irq(&phba->hbalock);
1771 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1772 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
1773 spin_unlock_irq(&phba->hbalock);
1776 /* Unregister the currently registered FCF if required */
1778 spin_lock_irq(&phba->hbalock);
1779 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1780 spin_unlock_irq(&phba->hbalock);
1781 lpfc_sli4_unregister_fcf(phba);
1787 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1788 * @phba: pointer to lpfc hba data structure.
1789 * @fcf_cnt: number of eligible fcf record seen so far.
1791 * This function makes an running random selection decision on FCF record to
1792 * use through a sequence of @fcf_cnt eligible FCF records with equal
1793 * probability. To perform integer manunipulation of random numbers with
1794 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1795 * from prandom_u32() are taken as the random random number generated.
1797 * Returns true when outcome is for the newly read FCF record should be
1798 * chosen; otherwise, return false when outcome is for keeping the previously
1799 * chosen FCF record.
1802 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
1806 /* Get 16-bit uniform random number */
1807 rand_num = 0xFFFF & prandom_u32();
1809 /* Decision with probability 1/fcf_cnt */
1810 if ((fcf_cnt * rand_num) < 0xFFFF)
1817 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
1818 * @phba: pointer to lpfc hba data structure.
1819 * @mboxq: pointer to mailbox object.
1820 * @next_fcf_index: pointer to holder of next fcf index.
1822 * This routine parses the non-embedded fcf mailbox command by performing the
1823 * necessarily error checking, non-embedded read FCF record mailbox command
1824 * SGE parsing, and endianness swapping.
1826 * Returns the pointer to the new FCF record in the non-embedded mailbox
1827 * command DMA memory if successfully, other NULL.
1829 static struct fcf_record *
1830 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
1831 uint16_t *next_fcf_index)
1834 struct lpfc_mbx_sge sge;
1835 struct lpfc_mbx_read_fcf_tbl *read_fcf;
1836 uint32_t shdr_status, shdr_add_status, if_type;
1837 union lpfc_sli4_cfg_shdr *shdr;
1838 struct fcf_record *new_fcf_record;
1840 /* Get the first SGE entry from the non-embedded DMA memory. This
1841 * routine only uses a single SGE.
1843 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1844 if (unlikely(!mboxq->sge_array)) {
1845 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1846 "2524 Failed to get the non-embedded SGE "
1847 "virtual address\n");
1850 virt_addr = mboxq->sge_array->addr[0];
1852 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
1853 lpfc_sli_pcimem_bcopy(shdr, shdr,
1854 sizeof(union lpfc_sli4_cfg_shdr));
1855 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
1856 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1857 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
1858 if (shdr_status || shdr_add_status) {
1859 if (shdr_status == STATUS_FCF_TABLE_EMPTY ||
1860 if_type == LPFC_SLI_INTF_IF_TYPE_2)
1861 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1862 "2726 READ_FCF_RECORD Indicates empty "
1865 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1866 "2521 READ_FCF_RECORD mailbox failed "
1867 "with status x%x add_status x%x, "
1868 "mbx\n", shdr_status, shdr_add_status);
1872 /* Interpreting the returned information of the FCF record */
1873 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1874 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1875 sizeof(struct lpfc_mbx_read_fcf_tbl));
1876 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
1877 new_fcf_record = (struct fcf_record *)(virt_addr +
1878 sizeof(struct lpfc_mbx_read_fcf_tbl));
1879 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
1880 offsetof(struct fcf_record, vlan_bitmap));
1881 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
1882 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
1884 return new_fcf_record;
1888 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1889 * @phba: pointer to lpfc hba data structure.
1890 * @fcf_record: pointer to the fcf record.
1891 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1892 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1894 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1898 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
1899 struct fcf_record *fcf_record,
1901 uint16_t next_fcf_index)
1903 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1904 "2764 READ_FCF_RECORD:\n"
1905 "\tFCF_Index : x%x\n"
1906 "\tFCF_Avail : x%x\n"
1907 "\tFCF_Valid : x%x\n"
1909 "\tFIP_Priority : x%x\n"
1910 "\tMAC_Provider : x%x\n"
1911 "\tLowest VLANID : x%x\n"
1912 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1913 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1914 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1915 "\tNext_FCF_Index: x%x\n",
1916 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
1917 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
1918 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
1919 bf_get(lpfc_fcf_record_fcf_sol, fcf_record),
1920 fcf_record->fip_priority,
1921 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
1923 bf_get(lpfc_fcf_record_mac_0, fcf_record),
1924 bf_get(lpfc_fcf_record_mac_1, fcf_record),
1925 bf_get(lpfc_fcf_record_mac_2, fcf_record),
1926 bf_get(lpfc_fcf_record_mac_3, fcf_record),
1927 bf_get(lpfc_fcf_record_mac_4, fcf_record),
1928 bf_get(lpfc_fcf_record_mac_5, fcf_record),
1929 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
1930 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
1931 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
1932 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
1933 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
1934 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
1935 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
1936 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
1937 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
1938 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
1939 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
1940 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
1941 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
1942 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
1943 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
1944 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
1949 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1950 * @phba: pointer to lpfc hba data structure.
1951 * @fcf_rec: pointer to an existing FCF record.
1952 * @new_fcf_record: pointer to a new FCF record.
1953 * @new_vlan_id: vlan id from the new FCF record.
1955 * This function performs matching test of a new FCF record against an existing
1956 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1957 * will not be used as part of the FCF record matching criteria.
1959 * Returns true if all the fields matching, otherwise returns false.
1962 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
1963 struct lpfc_fcf_rec *fcf_rec,
1964 struct fcf_record *new_fcf_record,
1965 uint16_t new_vlan_id)
1967 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
1968 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
1970 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
1972 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
1974 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
1976 if (fcf_rec->priority != new_fcf_record->fip_priority)
1982 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1983 * @vport: Pointer to vport object.
1984 * @fcf_index: index to next fcf.
1986 * This function processing the roundrobin fcf failover to next fcf index.
1987 * When this function is invoked, there will be a current fcf registered
1989 * Return: 0 for continue retrying flogi on currently registered fcf;
1990 * 1 for stop flogi on currently registered fcf;
1992 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
1994 struct lpfc_hba *phba = vport->phba;
1997 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
1998 spin_lock_irq(&phba->hbalock);
1999 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2000 spin_unlock_irq(&phba->hbalock);
2001 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2002 "2872 Devloss tmo with no eligible "
2003 "FCF, unregister in-use FCF (x%x) "
2004 "and rescan FCF table\n",
2005 phba->fcf.current_rec.fcf_indx);
2006 lpfc_unregister_fcf_rescan(phba);
2007 goto stop_flogi_current_fcf;
2009 /* Mark the end to FLOGI roundrobin failover */
2010 phba->hba_flag &= ~FCF_RR_INPROG;
2011 /* Allow action to new fcf asynchronous event */
2012 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2013 spin_unlock_irq(&phba->hbalock);
2014 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2015 "2865 No FCF available, stop roundrobin FCF "
2016 "failover and change port state:x%x/x%x\n",
2017 phba->pport->port_state, LPFC_VPORT_UNKNOWN);
2018 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
2020 if (!phba->fcf.fcf_redisc_attempted) {
2021 lpfc_unregister_fcf(phba);
2023 rc = lpfc_sli4_redisc_fcf_table(phba);
2025 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2026 "3195 Rediscover FCF table\n");
2027 phba->fcf.fcf_redisc_attempted = 1;
2028 lpfc_sli4_clear_fcf_rr_bmask(phba);
2030 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2031 "3196 Rediscover FCF table "
2032 "failed. Status:x%x\n", rc);
2035 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2036 "3197 Already rediscover FCF table "
2037 "attempted. No more retry\n");
2039 goto stop_flogi_current_fcf;
2041 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
2042 "2794 Try FLOGI roundrobin FCF failover to "
2043 "(x%x)\n", fcf_index);
2044 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
2046 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
2047 "2761 FLOGI roundrobin FCF failover "
2048 "failed (rc:x%x) to read FCF (x%x)\n",
2049 rc, phba->fcf.current_rec.fcf_indx);
2051 goto stop_flogi_current_fcf;
2055 stop_flogi_current_fcf:
2056 lpfc_can_disctmo(vport);
2061 * lpfc_sli4_fcf_pri_list_del
2062 * @phba: pointer to lpfc hba data structure.
2063 * @fcf_index the index of the fcf record to delete
2064 * This routine checks the on list flag of the fcf_index to be deleted.
2065 * If it is one the list then it is removed from the list, and the flag
2066 * is cleared. This routine grab the hbalock before removing the fcf
2067 * record from the list.
2069 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
2072 struct lpfc_fcf_pri *new_fcf_pri;
2074 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2075 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2076 "3058 deleting idx x%x pri x%x flg x%x\n",
2077 fcf_index, new_fcf_pri->fcf_rec.priority,
2078 new_fcf_pri->fcf_rec.flag);
2079 spin_lock_irq(&phba->hbalock);
2080 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
2081 if (phba->fcf.current_rec.priority ==
2082 new_fcf_pri->fcf_rec.priority)
2083 phba->fcf.eligible_fcf_cnt--;
2084 list_del_init(&new_fcf_pri->list);
2085 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
2087 spin_unlock_irq(&phba->hbalock);
2091 * lpfc_sli4_set_fcf_flogi_fail
2092 * @phba: pointer to lpfc hba data structure.
2093 * @fcf_index the index of the fcf record to update
2094 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2095 * flag so the the round robin slection for the particular priority level
2096 * will try a different fcf record that does not have this bit set.
2097 * If the fcf record is re-read for any reason this flag is cleared brfore
2098 * adding it to the priority list.
2101 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
2103 struct lpfc_fcf_pri *new_fcf_pri;
2104 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2105 spin_lock_irq(&phba->hbalock);
2106 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
2107 spin_unlock_irq(&phba->hbalock);
2111 * lpfc_sli4_fcf_pri_list_add
2112 * @phba: pointer to lpfc hba data structure.
2113 * @fcf_index the index of the fcf record to add
2114 * This routine checks the priority of the fcf_index to be added.
2115 * If it is a lower priority than the current head of the fcf_pri list
2116 * then it is added to the list in the right order.
2117 * If it is the same priority as the current head of the list then it
2118 * is added to the head of the list and its bit in the rr_bmask is set.
2119 * If the fcf_index to be added is of a higher priority than the current
2120 * head of the list then the rr_bmask is cleared, its bit is set in the
2121 * rr_bmask and it is added to the head of the list.
2123 * 0=success 1=failure
2125 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba,
2127 struct fcf_record *new_fcf_record)
2129 uint16_t current_fcf_pri;
2130 uint16_t last_index;
2131 struct lpfc_fcf_pri *fcf_pri;
2132 struct lpfc_fcf_pri *next_fcf_pri;
2133 struct lpfc_fcf_pri *new_fcf_pri;
2136 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2137 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2138 "3059 adding idx x%x pri x%x flg x%x\n",
2139 fcf_index, new_fcf_record->fip_priority,
2140 new_fcf_pri->fcf_rec.flag);
2141 spin_lock_irq(&phba->hbalock);
2142 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
2143 list_del_init(&new_fcf_pri->list);
2144 new_fcf_pri->fcf_rec.fcf_index = fcf_index;
2145 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
2146 if (list_empty(&phba->fcf.fcf_pri_list)) {
2147 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2148 ret = lpfc_sli4_fcf_rr_index_set(phba,
2149 new_fcf_pri->fcf_rec.fcf_index);
2153 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
2154 LPFC_SLI4_FCF_TBL_INDX_MAX);
2155 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
2156 ret = 0; /* Empty rr list */
2159 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
2160 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
2161 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2162 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
2163 memset(phba->fcf.fcf_rr_bmask, 0,
2164 sizeof(*phba->fcf.fcf_rr_bmask));
2165 /* fcfs_at_this_priority_level = 1; */
2166 phba->fcf.eligible_fcf_cnt = 1;
2168 /* fcfs_at_this_priority_level++; */
2169 phba->fcf.eligible_fcf_cnt++;
2170 ret = lpfc_sli4_fcf_rr_index_set(phba,
2171 new_fcf_pri->fcf_rec.fcf_index);
2175 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
2176 &phba->fcf.fcf_pri_list, list) {
2177 if (new_fcf_pri->fcf_rec.priority <=
2178 fcf_pri->fcf_rec.priority) {
2179 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
2180 list_add(&new_fcf_pri->list,
2181 &phba->fcf.fcf_pri_list);
2183 list_add(&new_fcf_pri->list,
2184 &((struct lpfc_fcf_pri *)
2185 fcf_pri->list.prev)->list);
2188 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
2189 || new_fcf_pri->fcf_rec.priority <
2190 next_fcf_pri->fcf_rec.priority) {
2191 list_add(&new_fcf_pri->list, &fcf_pri->list);
2195 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
2201 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2202 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
2203 spin_unlock_irq(&phba->hbalock);
2208 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2209 * @phba: pointer to lpfc hba data structure.
2210 * @mboxq: pointer to mailbox object.
2212 * This function iterates through all the fcf records available in
2213 * HBA and chooses the optimal FCF record for discovery. After finding
2214 * the FCF for discovery it registers the FCF record and kicks start
2216 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2217 * use an FCF record which matches fabric name and mac address of the
2218 * currently used FCF record.
2219 * If the driver supports only one FCF, it will try to use the FCF record
2220 * used by BOOT_BIOS.
2223 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2225 struct fcf_record *new_fcf_record;
2226 uint32_t boot_flag, addr_mode;
2227 uint16_t fcf_index, next_fcf_index;
2228 struct lpfc_fcf_rec *fcf_rec = NULL;
2229 uint16_t vlan_id = LPFC_FCOE_NULL_VID;
2230 bool select_new_fcf;
2233 /* If there is pending FCoE event restart FCF table scan */
2234 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
2235 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2239 /* Parse the FCF record from the non-embedded mailbox command */
2240 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2242 if (!new_fcf_record) {
2243 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2244 "2765 Mailbox command READ_FCF_RECORD "
2245 "failed to retrieve a FCF record.\n");
2246 /* Let next new FCF event trigger fast failover */
2247 spin_lock_irq(&phba->hbalock);
2248 phba->hba_flag &= ~FCF_TS_INPROG;
2249 spin_unlock_irq(&phba->hbalock);
2250 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2254 /* Check the FCF record against the connection list */
2255 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2256 &addr_mode, &vlan_id);
2258 /* Log the FCF record information if turned on */
2259 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2263 * If the fcf record does not match with connect list entries
2264 * read the next entry; otherwise, this is an eligible FCF
2265 * record for roundrobin FCF failover.
2268 lpfc_sli4_fcf_pri_list_del(phba,
2269 bf_get(lpfc_fcf_record_fcf_index,
2271 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2272 "2781 FCF (x%x) failed connection "
2273 "list check: (x%x/x%x/%x)\n",
2274 bf_get(lpfc_fcf_record_fcf_index,
2276 bf_get(lpfc_fcf_record_fcf_avail,
2278 bf_get(lpfc_fcf_record_fcf_valid,
2280 bf_get(lpfc_fcf_record_fcf_sol,
2282 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
2283 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2284 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
2285 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
2286 phba->fcf.current_rec.fcf_indx) {
2287 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2288 "2862 FCF (x%x) matches property "
2289 "of in-use FCF (x%x)\n",
2290 bf_get(lpfc_fcf_record_fcf_index,
2292 phba->fcf.current_rec.fcf_indx);
2296 * In case the current in-use FCF record becomes
2297 * invalid/unavailable during FCF discovery that
2298 * was not triggered by fast FCF failover process,
2299 * treat it as fast FCF failover.
2301 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
2302 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2303 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2304 "2835 Invalid in-use FCF "
2305 "(x%x), enter FCF failover "
2307 phba->fcf.current_rec.fcf_indx);
2308 spin_lock_irq(&phba->hbalock);
2309 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2310 spin_unlock_irq(&phba->hbalock);
2311 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2312 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2313 LPFC_FCOE_FCF_GET_FIRST);
2319 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2320 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
2327 * If this is not the first FCF discovery of the HBA, use last
2328 * FCF record for the discovery. The condition that a rescan
2329 * matches the in-use FCF record: fabric name, switch name, mac
2330 * address, and vlan_id.
2332 spin_lock_irq(&phba->hbalock);
2333 if (phba->fcf.fcf_flag & FCF_IN_USE) {
2334 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2335 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2336 new_fcf_record, vlan_id)) {
2337 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
2338 phba->fcf.current_rec.fcf_indx) {
2339 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2340 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
2341 /* Stop FCF redisc wait timer */
2342 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2344 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2345 /* Fast failover, mark completed */
2346 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2347 spin_unlock_irq(&phba->hbalock);
2348 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2349 "2836 New FCF matches in-use "
2350 "FCF (x%x), port_state:x%x, "
2352 phba->fcf.current_rec.fcf_indx,
2353 phba->pport->port_state,
2354 phba->pport->fc_flag);
2357 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2358 "2863 New FCF (x%x) matches "
2359 "property of in-use FCF (x%x)\n",
2360 bf_get(lpfc_fcf_record_fcf_index,
2362 phba->fcf.current_rec.fcf_indx);
2365 * Read next FCF record from HBA searching for the matching
2366 * with in-use record only if not during the fast failover
2367 * period. In case of fast failover period, it shall try to
2368 * determine whether the FCF record just read should be the
2371 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2372 spin_unlock_irq(&phba->hbalock);
2377 * Update on failover FCF record only if it's in FCF fast-failover
2378 * period; otherwise, update on current FCF record.
2380 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2381 fcf_rec = &phba->fcf.failover_rec;
2383 fcf_rec = &phba->fcf.current_rec;
2385 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
2387 * If the driver FCF record does not have boot flag
2388 * set and new hba fcf record has boot flag set, use
2389 * the new hba fcf record.
2391 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
2392 /* Choose this FCF record */
2393 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2394 "2837 Update current FCF record "
2395 "(x%x) with new FCF record (x%x)\n",
2397 bf_get(lpfc_fcf_record_fcf_index,
2399 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2400 addr_mode, vlan_id, BOOT_ENABLE);
2401 spin_unlock_irq(&phba->hbalock);
2405 * If the driver FCF record has boot flag set and the
2406 * new hba FCF record does not have boot flag, read
2407 * the next FCF record.
2409 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
2410 spin_unlock_irq(&phba->hbalock);
2414 * If the new hba FCF record has lower priority value
2415 * than the driver FCF record, use the new record.
2417 if (new_fcf_record->fip_priority < fcf_rec->priority) {
2418 /* Choose the new FCF record with lower priority */
2419 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2420 "2838 Update current FCF record "
2421 "(x%x) with new FCF record (x%x)\n",
2423 bf_get(lpfc_fcf_record_fcf_index,
2425 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2426 addr_mode, vlan_id, 0);
2427 /* Reset running random FCF selection count */
2428 phba->fcf.eligible_fcf_cnt = 1;
2429 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
2430 /* Update running random FCF selection count */
2431 phba->fcf.eligible_fcf_cnt++;
2432 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
2433 phba->fcf.eligible_fcf_cnt);
2434 if (select_new_fcf) {
2435 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2436 "2839 Update current FCF record "
2437 "(x%x) with new FCF record (x%x)\n",
2439 bf_get(lpfc_fcf_record_fcf_index,
2441 /* Choose the new FCF by random selection */
2442 __lpfc_update_fcf_record(phba, fcf_rec,
2444 addr_mode, vlan_id, 0);
2447 spin_unlock_irq(&phba->hbalock);
2451 * This is the first suitable FCF record, choose this record for
2452 * initial best-fit FCF.
2455 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2456 "2840 Update initial FCF candidate "
2458 bf_get(lpfc_fcf_record_fcf_index,
2460 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2461 addr_mode, vlan_id, (boot_flag ?
2463 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2464 /* Setup initial running random FCF selection count */
2465 phba->fcf.eligible_fcf_cnt = 1;
2467 spin_unlock_irq(&phba->hbalock);
2471 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2472 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
2473 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
2475 * Case of FCF fast failover scan
2479 * It has not found any suitable FCF record, cancel
2480 * FCF scan inprogress, and do nothing
2482 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
2483 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2484 "2782 No suitable FCF found: "
2486 phba->fcoe_eventtag_at_fcf_scan,
2487 bf_get(lpfc_fcf_record_fcf_index,
2489 spin_lock_irq(&phba->hbalock);
2490 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2491 phba->hba_flag &= ~FCF_TS_INPROG;
2492 spin_unlock_irq(&phba->hbalock);
2493 /* Unregister in-use FCF and rescan */
2494 lpfc_printf_log(phba, KERN_INFO,
2496 "2864 On devloss tmo "
2497 "unreg in-use FCF and "
2498 "rescan FCF table\n");
2499 lpfc_unregister_fcf_rescan(phba);
2503 * Let next new FCF event trigger fast failover
2505 phba->hba_flag &= ~FCF_TS_INPROG;
2506 spin_unlock_irq(&phba->hbalock);
2510 * It has found a suitable FCF record that is not
2511 * the same as in-use FCF record, unregister the
2512 * in-use FCF record, replace the in-use FCF record
2513 * with the new FCF record, mark FCF fast failover
2514 * completed, and then start register the new FCF
2518 /* Unregister the current in-use FCF record */
2519 lpfc_unregister_fcf(phba);
2521 /* Replace in-use record with the new record */
2522 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2523 "2842 Replace in-use FCF (x%x) "
2524 "with failover FCF (x%x)\n",
2525 phba->fcf.current_rec.fcf_indx,
2526 phba->fcf.failover_rec.fcf_indx);
2527 memcpy(&phba->fcf.current_rec,
2528 &phba->fcf.failover_rec,
2529 sizeof(struct lpfc_fcf_rec));
2531 * Mark the fast FCF failover rediscovery completed
2532 * and the start of the first round of the roundrobin
2535 spin_lock_irq(&phba->hbalock);
2536 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2537 spin_unlock_irq(&phba->hbalock);
2538 /* Register to the new FCF record */
2539 lpfc_register_fcf(phba);
2542 * In case of transaction period to fast FCF failover,
2543 * do nothing when search to the end of the FCF table.
2545 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
2546 (phba->fcf.fcf_flag & FCF_REDISC_PEND))
2549 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2550 phba->fcf.fcf_flag & FCF_IN_USE) {
2552 * In case the current in-use FCF record no
2553 * longer existed during FCF discovery that
2554 * was not triggered by fast FCF failover
2555 * process, treat it as fast FCF failover.
2557 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2558 "2841 In-use FCF record (x%x) "
2559 "not reported, entering fast "
2560 "FCF failover mode scanning.\n",
2561 phba->fcf.current_rec.fcf_indx);
2562 spin_lock_irq(&phba->hbalock);
2563 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2564 spin_unlock_irq(&phba->hbalock);
2565 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2566 LPFC_FCOE_FCF_GET_FIRST);
2569 /* Register to the new FCF record */
2570 lpfc_register_fcf(phba);
2573 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
2577 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2578 lpfc_register_fcf(phba);
2584 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2585 * @phba: pointer to lpfc hba data structure.
2586 * @mboxq: pointer to mailbox object.
2588 * This is the callback function for FLOGI failure roundrobin FCF failover
2589 * read FCF record mailbox command from the eligible FCF record bmask for
2590 * performing the failover. If the FCF read back is not valid/available, it
2591 * fails through to retrying FLOGI to the currently registered FCF again.
2592 * Otherwise, if the FCF read back is valid and available, it will set the
2593 * newly read FCF record to the failover FCF record, unregister currently
2594 * registered FCF record, copy the failover FCF record to the current
2595 * FCF record, and then register the current FCF record before proceeding
2596 * to trying FLOGI on the new failover FCF.
2599 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2601 struct fcf_record *new_fcf_record;
2602 uint32_t boot_flag, addr_mode;
2603 uint16_t next_fcf_index, fcf_index;
2604 uint16_t current_fcf_index;
2608 /* If link state is not up, stop the roundrobin failover process */
2609 if (phba->link_state < LPFC_LINK_UP) {
2610 spin_lock_irq(&phba->hbalock);
2611 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
2612 phba->hba_flag &= ~FCF_RR_INPROG;
2613 spin_unlock_irq(&phba->hbalock);
2617 /* Parse the FCF record from the non-embedded mailbox command */
2618 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2620 if (!new_fcf_record) {
2621 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2622 "2766 Mailbox command READ_FCF_RECORD "
2623 "failed to retrieve a FCF record. "
2624 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag,
2625 phba->fcf.fcf_flag);
2626 lpfc_unregister_fcf_rescan(phba);
2630 /* Get the needed parameters from FCF record */
2631 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2632 &addr_mode, &vlan_id);
2634 /* Log the FCF record information if turned on */
2635 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2638 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2640 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2641 "2848 Remove ineligible FCF (x%x) from "
2642 "from roundrobin bmask\n", fcf_index);
2643 /* Clear roundrobin bmask bit for ineligible FCF */
2644 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
2645 /* Perform next round of roundrobin FCF failover */
2646 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
2647 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
2653 if (fcf_index == phba->fcf.current_rec.fcf_indx) {
2654 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2655 "2760 Perform FLOGI roundrobin FCF failover: "
2656 "FCF (x%x) back to FCF (x%x)\n",
2657 phba->fcf.current_rec.fcf_indx, fcf_index);
2658 /* Wait 500 ms before retrying FLOGI to current FCF */
2660 lpfc_issue_init_vfi(phba->pport);
2664 /* Upload new FCF record to the failover FCF record */
2665 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2666 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2667 phba->fcf.failover_rec.fcf_indx, fcf_index);
2668 spin_lock_irq(&phba->hbalock);
2669 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2670 new_fcf_record, addr_mode, vlan_id,
2671 (boot_flag ? BOOT_ENABLE : 0));
2672 spin_unlock_irq(&phba->hbalock);
2674 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2676 /* Unregister the current in-use FCF record */
2677 lpfc_unregister_fcf(phba);
2679 /* Replace in-use record with the new record */
2680 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2681 sizeof(struct lpfc_fcf_rec));
2683 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2684 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2685 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
2688 lpfc_register_fcf(phba);
2690 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2694 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2695 * @phba: pointer to lpfc hba data structure.
2696 * @mboxq: pointer to mailbox object.
2698 * This is the callback function of read FCF record mailbox command for
2699 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
2700 * failover when a new FCF event happened. If the FCF read back is
2701 * valid/available and it passes the connection list check, it updates
2702 * the bmask for the eligible FCF record for roundrobin failover.
2705 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2707 struct fcf_record *new_fcf_record;
2708 uint32_t boot_flag, addr_mode;
2709 uint16_t fcf_index, next_fcf_index;
2713 /* If link state is not up, no need to proceed */
2714 if (phba->link_state < LPFC_LINK_UP)
2717 /* If FCF discovery period is over, no need to proceed */
2718 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
2721 /* Parse the FCF record from the non-embedded mailbox command */
2722 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2724 if (!new_fcf_record) {
2725 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2726 "2767 Mailbox command READ_FCF_RECORD "
2727 "failed to retrieve a FCF record.\n");
2731 /* Check the connection list for eligibility */
2732 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2733 &addr_mode, &vlan_id);
2735 /* Log the FCF record information if turned on */
2736 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2742 /* Update the eligible FCF record index bmask */
2743 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2745 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
2748 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2752 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2753 * @phba: pointer to lpfc hba data structure.
2754 * @mboxq: pointer to mailbox data structure.
2756 * This function handles completion of init vfi mailbox command.
2759 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2761 struct lpfc_vport *vport = mboxq->vport;
2764 * VFI not supported on interface type 0, just do the flogi
2765 * Also continue if the VFI is in use - just use the same one.
2767 if (mboxq->u.mb.mbxStatus &&
2768 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2769 LPFC_SLI_INTF_IF_TYPE_0) &&
2770 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2771 lpfc_printf_vlog(vport, KERN_ERR,
2773 "2891 Init VFI mailbox failed 0x%x\n",
2774 mboxq->u.mb.mbxStatus);
2775 mempool_free(mboxq, phba->mbox_mem_pool);
2776 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2780 lpfc_initial_flogi(vport);
2781 mempool_free(mboxq, phba->mbox_mem_pool);
2786 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2787 * @vport: pointer to lpfc_vport data structure.
2789 * This function issue a init_vfi mailbox command to initialize the VFI and
2790 * VPI for the physical port.
2793 lpfc_issue_init_vfi(struct lpfc_vport *vport)
2795 LPFC_MBOXQ_t *mboxq;
2797 struct lpfc_hba *phba = vport->phba;
2799 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2801 lpfc_printf_vlog(vport, KERN_ERR,
2802 LOG_MBOX, "2892 Failed to allocate "
2803 "init_vfi mailbox\n");
2806 lpfc_init_vfi(mboxq, vport);
2807 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
2808 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
2809 if (rc == MBX_NOT_FINISHED) {
2810 lpfc_printf_vlog(vport, KERN_ERR,
2811 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n");
2812 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2817 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2818 * @phba: pointer to lpfc hba data structure.
2819 * @mboxq: pointer to mailbox data structure.
2821 * This function handles completion of init vpi mailbox command.
2824 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2826 struct lpfc_vport *vport = mboxq->vport;
2827 struct lpfc_nodelist *ndlp;
2828 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2830 if (mboxq->u.mb.mbxStatus) {
2831 lpfc_printf_vlog(vport, KERN_ERR,
2833 "2609 Init VPI mailbox failed 0x%x\n",
2834 mboxq->u.mb.mbxStatus);
2835 mempool_free(mboxq, phba->mbox_mem_pool);
2836 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2839 spin_lock_irq(shost->host_lock);
2840 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
2841 spin_unlock_irq(shost->host_lock);
2843 /* If this port is physical port or FDISC is done, do reg_vpi */
2844 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
2845 ndlp = lpfc_findnode_did(vport, Fabric_DID);
2847 lpfc_printf_vlog(vport, KERN_ERR,
2849 "2731 Cannot find fabric "
2850 "controller node\n");
2852 lpfc_register_new_vport(phba, vport, ndlp);
2853 mempool_free(mboxq, phba->mbox_mem_pool);
2857 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2858 lpfc_initial_fdisc(vport);
2860 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
2861 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2862 "2606 No NPIV Fabric support\n");
2864 mempool_free(mboxq, phba->mbox_mem_pool);
2869 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2870 * @vport: pointer to lpfc_vport data structure.
2872 * This function issue a init_vpi mailbox command to initialize
2873 * VPI for the vport.
2876 lpfc_issue_init_vpi(struct lpfc_vport *vport)
2878 LPFC_MBOXQ_t *mboxq;
2881 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {
2882 vpi = lpfc_alloc_vpi(vport->phba);
2884 lpfc_printf_vlog(vport, KERN_ERR,
2886 "3303 Failed to obtain vport vpi\n");
2887 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2893 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
2895 lpfc_printf_vlog(vport, KERN_ERR,
2896 LOG_MBOX, "2607 Failed to allocate "
2897 "init_vpi mailbox\n");
2900 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
2901 mboxq->vport = vport;
2902 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
2903 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
2904 if (rc == MBX_NOT_FINISHED) {
2905 lpfc_printf_vlog(vport, KERN_ERR,
2906 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
2907 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2912 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2913 * @phba: pointer to lpfc hba data structure.
2915 * This function loops through the list of vports on the @phba and issues an
2916 * FDISC if possible.
2919 lpfc_start_fdiscs(struct lpfc_hba *phba)
2921 struct lpfc_vport **vports;
2924 vports = lpfc_create_vport_work_array(phba);
2925 if (vports != NULL) {
2926 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2927 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
2929 /* There are no vpi for this vport */
2930 if (vports[i]->vpi > phba->max_vpi) {
2931 lpfc_vport_set_state(vports[i],
2935 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2936 lpfc_vport_set_state(vports[i],
2940 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
2941 lpfc_issue_init_vpi(vports[i]);
2944 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2945 lpfc_initial_fdisc(vports[i]);
2947 lpfc_vport_set_state(vports[i],
2948 FC_VPORT_NO_FABRIC_SUPP);
2949 lpfc_printf_vlog(vports[i], KERN_ERR,
2952 "Fabric support\n");
2956 lpfc_destroy_vport_work_array(phba, vports);
2960 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2962 struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf;
2963 struct lpfc_vport *vport = mboxq->vport;
2964 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2967 * VFI not supported for interface type 0, so ignore any mailbox
2968 * error (except VFI in use) and continue with the discovery.
2970 if (mboxq->u.mb.mbxStatus &&
2971 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2972 LPFC_SLI_INTF_IF_TYPE_0) &&
2973 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2974 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2975 "2018 REG_VFI mbxStatus error x%x "
2977 mboxq->u.mb.mbxStatus, vport->port_state);
2978 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2979 /* FLOGI failed, use loop map to make discovery list */
2980 lpfc_disc_list_loopmap(vport);
2981 /* Start discovery */
2982 lpfc_disc_start(vport);
2985 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2989 /* If the VFI is already registered, there is nothing else to do
2990 * Unless this was a VFI update and we are in PT2PT mode, then
2991 * we should drop through to set the port state to ready.
2993 if (vport->fc_flag & FC_VFI_REGISTERED)
2994 if (!(phba->sli_rev == LPFC_SLI_REV4 &&
2995 vport->fc_flag & FC_PT2PT))
2998 /* The VPI is implicitly registered when the VFI is registered */
2999 spin_lock_irq(shost->host_lock);
3000 vport->vpi_state |= LPFC_VPI_REGISTERED;
3001 vport->fc_flag |= FC_VFI_REGISTERED;
3002 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
3003 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
3004 spin_unlock_irq(shost->host_lock);
3006 /* In case SLI4 FC loopback test, we are ready */
3007 if ((phba->sli_rev == LPFC_SLI_REV4) &&
3008 (phba->link_flag & LS_LOOPBACK_MODE)) {
3009 phba->link_state = LPFC_HBA_READY;
3013 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3014 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
3015 "alpacnt:%d LinkState:%x topology:%x\n",
3016 vport->port_state, vport->fc_flag, vport->fc_myDID,
3017 vport->phba->alpa_map[0],
3018 phba->link_state, phba->fc_topology);
3020 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3022 * For private loop or for NPort pt2pt,
3023 * just start discovery and we are done.
3025 if ((vport->fc_flag & FC_PT2PT) ||
3026 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
3027 !(vport->fc_flag & FC_PUBLIC_LOOP))) {
3029 /* Use loop map to make discovery list */
3030 lpfc_disc_list_loopmap(vport);
3031 /* Start discovery */
3032 if (vport->fc_flag & FC_PT2PT)
3033 vport->port_state = LPFC_VPORT_READY;
3035 lpfc_disc_start(vport);
3037 lpfc_start_fdiscs(phba);
3038 lpfc_do_scr_ns_plogi(phba, vport);
3043 mempool_free(mboxq, phba->mbox_mem_pool);
3045 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
3052 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3054 MAILBOX_t *mb = &pmb->u.mb;
3055 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
3056 struct lpfc_vport *vport = pmb->vport;
3057 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3058 struct serv_parm *sp = &vport->fc_sparam;
3061 /* Check for error */
3062 if (mb->mbxStatus) {
3063 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
3064 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3065 "0319 READ_SPARAM mbxStatus error x%x "
3067 mb->mbxStatus, vport->port_state);
3068 lpfc_linkdown(phba);
3072 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
3073 sizeof (struct serv_parm));
3075 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
3076 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
3077 ed_tov = (ed_tov + 999999) / 1000000;
3079 phba->fc_edtov = ed_tov;
3080 phba->fc_ratov = (2 * ed_tov) / 1000;
3081 if (phba->fc_ratov < FF_DEF_RATOV) {
3082 /* RA_TOV should be atleast 10sec for initial flogi */
3083 phba->fc_ratov = FF_DEF_RATOV;
3086 lpfc_update_vport_wwn(vport);
3087 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3088 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3089 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
3090 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
3093 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3095 mempool_free(pmb, phba->mbox_mem_pool);
3099 pmb->ctx_buf = NULL;
3100 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3102 lpfc_issue_clear_la(phba, vport);
3103 mempool_free(pmb, phba->mbox_mem_pool);
3108 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
3110 struct lpfc_vport *vport = phba->pport;
3111 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
3112 struct Scsi_Host *shost;
3114 struct lpfc_dmabuf *mp;
3116 struct fcf_record *fcf_record;
3117 uint32_t fc_flags = 0;
3118 unsigned long iflags;
3120 spin_lock_irqsave(&phba->hbalock, iflags);
3121 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
3123 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3124 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
3125 case LPFC_LINK_SPEED_1GHZ:
3126 case LPFC_LINK_SPEED_2GHZ:
3127 case LPFC_LINK_SPEED_4GHZ:
3128 case LPFC_LINK_SPEED_8GHZ:
3129 case LPFC_LINK_SPEED_10GHZ:
3130 case LPFC_LINK_SPEED_16GHZ:
3131 case LPFC_LINK_SPEED_32GHZ:
3132 case LPFC_LINK_SPEED_64GHZ:
3133 case LPFC_LINK_SPEED_128GHZ:
3136 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
3141 if (phba->fc_topology &&
3142 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {
3143 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3144 "3314 Toplogy changed was 0x%x is 0x%x\n",
3146 bf_get(lpfc_mbx_read_top_topology, la));
3147 phba->fc_topology_changed = 1;
3150 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
3151 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
3153 shost = lpfc_shost_from_vport(vport);
3154 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3155 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
3157 /* if npiv is enabled and this adapter supports npiv log
3158 * a message that npiv is not supported in this topology
3160 if (phba->cfg_enable_npiv && phba->max_vpi)
3161 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3162 "1309 Link Up Event npiv not supported in loop "
3164 /* Get Loop Map information */
3165 if (bf_get(lpfc_mbx_read_top_il, la))
3166 fc_flags |= FC_LBIT;
3168 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
3169 i = la->lilpBde64.tus.f.bdeSize;
3172 phba->alpa_map[0] = 0;
3174 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
3185 numalpa = phba->alpa_map[0];
3187 while (j < numalpa) {
3188 memset(un.pamap, 0, 16);
3189 for (k = 1; j < numalpa; k++) {
3191 phba->alpa_map[j + 1];
3196 /* Link Up Event ALPA map */
3197 lpfc_printf_log(phba,
3200 "1304 Link Up Event "
3201 "ALPA map Data: x%x "
3203 un.pa.wd1, un.pa.wd2,
3204 un.pa.wd3, un.pa.wd4);
3209 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
3210 if (phba->max_vpi && phba->cfg_enable_npiv &&
3211 (phba->sli_rev >= LPFC_SLI_REV3))
3212 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3214 vport->fc_myDID = phba->fc_pref_DID;
3215 fc_flags |= FC_LBIT;
3217 spin_unlock_irqrestore(&phba->hbalock, iflags);
3220 spin_lock_irqsave(shost->host_lock, iflags);
3221 vport->fc_flag |= fc_flags;
3222 spin_unlock_irqrestore(shost->host_lock, iflags);
3226 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3230 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
3232 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3235 sparam_mbox->vport = vport;
3236 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
3237 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
3238 if (rc == MBX_NOT_FINISHED) {
3239 mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf;
3240 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3242 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3246 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3247 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3250 vport->port_state = LPFC_LOCAL_CFG_LINK;
3251 lpfc_config_link(phba, cfglink_mbox);
3252 cfglink_mbox->vport = vport;
3253 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
3254 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
3255 if (rc == MBX_NOT_FINISHED) {
3256 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
3260 vport->port_state = LPFC_VPORT_UNKNOWN;
3262 * Add the driver's default FCF record at FCF index 0 now. This
3263 * is phase 1 implementation that support FCF index 0 and driver
3266 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
3267 fcf_record = kzalloc(sizeof(struct fcf_record),
3269 if (unlikely(!fcf_record)) {
3270 lpfc_printf_log(phba, KERN_ERR,
3272 "2554 Could not allocate memory for "
3278 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
3279 LPFC_FCOE_FCF_DEF_INDEX);
3280 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
3282 lpfc_printf_log(phba, KERN_ERR,
3284 "2013 Could not manually add FCF "
3285 "record 0, status %d\n", rc);
3293 * The driver is expected to do FIP/FCF. Call the port
3294 * and get the FCF Table.
3296 spin_lock_irqsave(&phba->hbalock, iflags);
3297 if (phba->hba_flag & FCF_TS_INPROG) {
3298 spin_unlock_irqrestore(&phba->hbalock, iflags);
3301 /* This is the initial FCF discovery scan */
3302 phba->fcf.fcf_flag |= FCF_INIT_DISC;
3303 spin_unlock_irqrestore(&phba->hbalock, iflags);
3304 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3305 "2778 Start FCF table scan at linkup\n");
3306 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3307 LPFC_FCOE_FCF_GET_FIRST);
3309 spin_lock_irqsave(&phba->hbalock, iflags);
3310 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
3311 spin_unlock_irqrestore(&phba->hbalock, iflags);
3314 /* Reset FCF roundrobin bmask for new discovery */
3315 lpfc_sli4_clear_fcf_rr_bmask(phba);
3320 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3321 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3322 "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n",
3323 vport->port_state, sparam_mbox, cfglink_mbox);
3324 lpfc_issue_clear_la(phba, vport);
3329 lpfc_enable_la(struct lpfc_hba *phba)
3332 struct lpfc_sli *psli = &phba->sli;
3333 spin_lock_irq(&phba->hbalock);
3334 psli->sli_flag |= LPFC_PROCESS_LA;
3335 if (phba->sli_rev <= LPFC_SLI_REV3) {
3336 control = readl(phba->HCregaddr);
3337 control |= HC_LAINT_ENA;
3338 writel(control, phba->HCregaddr);
3339 readl(phba->HCregaddr); /* flush */
3341 spin_unlock_irq(&phba->hbalock);
3345 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
3347 lpfc_linkdown(phba);
3348 lpfc_enable_la(phba);
3349 lpfc_unregister_unused_fcf(phba);
3350 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3355 * This routine handles processing a READ_TOPOLOGY mailbox
3356 * command upon completion. It is setup in the LPFC_MBOXQ
3357 * as the completion routine when the command is
3358 * handed off to the SLI layer. SLI4 only.
3361 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3363 struct lpfc_vport *vport = pmb->vport;
3364 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3365 struct lpfc_mbx_read_top *la;
3366 struct lpfc_sli_ring *pring;
3367 MAILBOX_t *mb = &pmb->u.mb;
3368 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
3370 unsigned long iflags;
3372 /* Unblock ELS traffic */
3373 pring = lpfc_phba_elsring(phba);
3375 pring->flag &= ~LPFC_STOP_IOCB_EVENT;
3377 /* Check for error */
3378 if (mb->mbxStatus) {
3379 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3380 "1307 READ_LA mbox error x%x state x%x\n",
3381 mb->mbxStatus, vport->port_state);
3382 lpfc_mbx_issue_link_down(phba);
3383 phba->link_state = LPFC_HBA_ERROR;
3384 goto lpfc_mbx_cmpl_read_topology_free_mbuf;
3387 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3388 attn_type = bf_get(lpfc_mbx_read_top_att_type, la);
3390 memcpy(&phba->alpa_map[0], mp->virt, 128);
3392 spin_lock_irqsave(shost->host_lock, iflags);
3393 if (bf_get(lpfc_mbx_read_top_pb, la))
3394 vport->fc_flag |= FC_BYPASSED_MODE;
3396 vport->fc_flag &= ~FC_BYPASSED_MODE;
3397 spin_unlock_irqrestore(shost->host_lock, iflags);
3399 if (phba->fc_eventTag <= la->eventTag) {
3400 phba->fc_stat.LinkMultiEvent++;
3401 if (attn_type == LPFC_ATT_LINK_UP)
3402 if (phba->fc_eventTag != 0)
3403 lpfc_linkdown(phba);
3406 phba->fc_eventTag = la->eventTag;
3407 if (phba->sli_rev < LPFC_SLI_REV4) {
3408 spin_lock_irqsave(&phba->hbalock, iflags);
3409 if (bf_get(lpfc_mbx_read_top_mm, la))
3410 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
3412 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
3413 spin_unlock_irqrestore(&phba->hbalock, iflags);
3416 phba->link_events++;
3417 if ((attn_type == LPFC_ATT_LINK_UP) &&
3418 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) {
3419 phba->fc_stat.LinkUp++;
3420 if (phba->link_flag & LS_LOOPBACK_MODE) {
3421 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3422 "1306 Link Up Event in loop back mode "
3423 "x%x received Data: x%x x%x x%x x%x\n",
3424 la->eventTag, phba->fc_eventTag,
3425 bf_get(lpfc_mbx_read_top_alpa_granted,
3427 bf_get(lpfc_mbx_read_top_link_spd, la),
3430 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3431 "1303 Link Up Event x%x received "
3432 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3433 la->eventTag, phba->fc_eventTag,
3434 bf_get(lpfc_mbx_read_top_alpa_granted,
3436 bf_get(lpfc_mbx_read_top_link_spd, la),
3438 bf_get(lpfc_mbx_read_top_mm, la),
3439 bf_get(lpfc_mbx_read_top_fa, la),
3440 phba->wait_4_mlo_maint_flg);
3442 lpfc_mbx_process_link_up(phba, la);
3443 } else if (attn_type == LPFC_ATT_LINK_DOWN ||
3444 attn_type == LPFC_ATT_UNEXP_WWPN) {
3445 phba->fc_stat.LinkDown++;
3446 if (phba->link_flag & LS_LOOPBACK_MODE)
3447 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3448 "1308 Link Down Event in loop back mode "
3450 "Data: x%x x%x x%x\n",
3451 la->eventTag, phba->fc_eventTag,
3452 phba->pport->port_state, vport->fc_flag);
3453 else if (attn_type == LPFC_ATT_UNEXP_WWPN)
3454 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3455 "1313 Link Down Unexpected FA WWPN Event x%x "
3456 "received Data: x%x x%x x%x x%x x%x\n",
3457 la->eventTag, phba->fc_eventTag,
3458 phba->pport->port_state, vport->fc_flag,
3459 bf_get(lpfc_mbx_read_top_mm, la),
3460 bf_get(lpfc_mbx_read_top_fa, la));
3462 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3463 "1305 Link Down Event x%x received "
3464 "Data: x%x x%x x%x x%x x%x\n",
3465 la->eventTag, phba->fc_eventTag,
3466 phba->pport->port_state, vport->fc_flag,
3467 bf_get(lpfc_mbx_read_top_mm, la),
3468 bf_get(lpfc_mbx_read_top_fa, la));
3469 lpfc_mbx_issue_link_down(phba);
3471 if (phba->sli.sli_flag & LPFC_MENLO_MAINT &&
3472 attn_type == LPFC_ATT_LINK_UP) {
3473 if (phba->link_state != LPFC_LINK_DOWN) {
3474 phba->fc_stat.LinkDown++;
3475 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3476 "1312 Link Down Event x%x received "
3477 "Data: x%x x%x x%x\n",
3478 la->eventTag, phba->fc_eventTag,
3479 phba->pport->port_state, vport->fc_flag);
3480 lpfc_mbx_issue_link_down(phba);
3482 lpfc_enable_la(phba);
3484 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3485 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3486 "Data: x%x x%x x%x\n",
3487 la->eventTag, phba->fc_eventTag,
3488 phba->pport->port_state, vport->fc_flag);
3490 * The cmnd that triggered this will be waiting for this
3493 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3494 if (phba->wait_4_mlo_maint_flg) {
3495 phba->wait_4_mlo_maint_flg = 0;
3496 wake_up_interruptible(&phba->wait_4_mlo_m_q);
3500 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3501 bf_get(lpfc_mbx_read_top_fa, la)) {
3502 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
3503 lpfc_issue_clear_la(phba, vport);
3504 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3506 bf_get(lpfc_mbx_read_top_fa, la));
3509 lpfc_mbx_cmpl_read_topology_free_mbuf:
3510 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3512 mempool_free(pmb, phba->mbox_mem_pool);
3517 * This routine handles processing a REG_LOGIN mailbox
3518 * command upon completion. It is setup in the LPFC_MBOXQ
3519 * as the completion routine when the command is
3520 * handed off to the SLI layer.
3523 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3525 struct lpfc_vport *vport = pmb->vport;
3526 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
3527 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
3528 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3530 pmb->ctx_buf = NULL;
3531 pmb->ctx_ndlp = NULL;
3533 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3534 "0002 rpi:%x DID:%x flg:%x %d map:%x x%px\n",
3535 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3536 kref_read(&ndlp->kref),
3537 ndlp->nlp_usg_map, ndlp);
3538 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
3539 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3541 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
3542 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
3543 /* We rcvd a rscn after issuing this
3544 * mbox reg login, we may have cycled
3545 * back through the state and be
3546 * back at reg login state so this
3547 * mbox needs to be ignored becase
3548 * there is another reg login in
3551 spin_lock_irq(shost->host_lock);
3552 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
3553 spin_unlock_irq(shost->host_lock);
3556 * We cannot leave the RPI registered because
3557 * if we go thru discovery again for this ndlp
3558 * a subsequent REG_RPI will fail.
3560 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3561 lpfc_unreg_rpi(vport, ndlp);
3564 /* Call state machine */
3565 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
3567 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3569 mempool_free(pmb, phba->mbox_mem_pool);
3570 /* decrement the node reference count held for this callback
3579 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3581 MAILBOX_t *mb = &pmb->u.mb;
3582 struct lpfc_vport *vport = pmb->vport;
3583 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3585 switch (mb->mbxStatus) {
3588 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3589 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3592 /* If VPI is busy, reset the HBA */
3594 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3595 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3596 vport->vpi, mb->mbxStatus);
3597 if (!(phba->pport->load_flag & FC_UNLOADING))
3598 lpfc_workq_post_event(phba, NULL, NULL,
3599 LPFC_EVT_RESET_HBA);
3601 spin_lock_irq(shost->host_lock);
3602 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
3603 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3604 spin_unlock_irq(shost->host_lock);
3605 vport->unreg_vpi_cmpl = VPORT_OK;
3606 mempool_free(pmb, phba->mbox_mem_pool);
3607 lpfc_cleanup_vports_rrqs(vport, NULL);
3609 * This shost reference might have been taken at the beginning of
3610 * lpfc_vport_delete()
3612 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
3613 scsi_host_put(shost);
3617 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
3619 struct lpfc_hba *phba = vport->phba;
3623 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3627 lpfc_unreg_vpi(phba, vport->vpi, mbox);
3628 mbox->vport = vport;
3629 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
3630 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3631 if (rc == MBX_NOT_FINISHED) {
3632 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3633 "1800 Could not issue unreg_vpi\n");
3634 mempool_free(mbox, phba->mbox_mem_pool);
3635 vport->unreg_vpi_cmpl = VPORT_ERROR;
3642 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3644 struct lpfc_vport *vport = pmb->vport;
3645 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3646 MAILBOX_t *mb = &pmb->u.mb;
3648 switch (mb->mbxStatus) {
3652 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3653 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3655 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3656 spin_lock_irq(shost->host_lock);
3657 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
3658 spin_unlock_irq(shost->host_lock);
3659 vport->fc_myDID = 0;
3661 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3662 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
3663 if (phba->nvmet_support)
3664 lpfc_nvmet_update_targetport(phba);
3666 lpfc_nvme_update_localport(vport);
3671 spin_lock_irq(shost->host_lock);
3672 vport->vpi_state |= LPFC_VPI_REGISTERED;
3673 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
3674 spin_unlock_irq(shost->host_lock);
3675 vport->num_disc_nodes = 0;
3676 /* go thru NPR list and issue ELS PLOGIs */
3677 if (vport->fc_npr_cnt)
3678 lpfc_els_disc_plogi(vport);
3680 if (!vport->num_disc_nodes) {
3681 spin_lock_irq(shost->host_lock);
3682 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3683 spin_unlock_irq(shost->host_lock);
3684 lpfc_can_disctmo(vport);
3686 vport->port_state = LPFC_VPORT_READY;
3689 mempool_free(pmb, phba->mbox_mem_pool);
3694 * lpfc_create_static_vport - Read HBA config region to create static vports.
3695 * @phba: pointer to lpfc hba data structure.
3697 * This routine issue a DUMP mailbox command for config region 22 to get
3698 * the list of static vports to be created. The function create vports
3699 * based on the information returned from the HBA.
3702 lpfc_create_static_vport(struct lpfc_hba *phba)
3704 LPFC_MBOXQ_t *pmb = NULL;
3706 struct static_vport_info *vport_info;
3707 int mbx_wait_rc = 0, i;
3708 struct fc_vport_identifiers vport_id;
3709 struct fc_vport *new_fc_vport;
3710 struct Scsi_Host *shost;
3711 struct lpfc_vport *vport;
3712 uint16_t offset = 0;
3713 uint8_t *vport_buff;
3714 struct lpfc_dmabuf *mp;
3715 uint32_t byte_count = 0;
3717 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3719 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3720 "0542 lpfc_create_static_vport failed to"
3721 " allocate mailbox memory\n");
3724 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
3727 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
3729 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3730 "0543 lpfc_create_static_vport failed to"
3731 " allocate vport_info\n");
3732 mempool_free(pmb, phba->mbox_mem_pool);
3736 vport_buff = (uint8_t *) vport_info;
3738 /* free dma buffer from previous round */
3740 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
3741 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3744 if (lpfc_dump_static_vport(phba, pmb, offset))
3747 pmb->vport = phba->pport;
3748 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,
3751 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {
3752 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3753 "0544 lpfc_create_static_vport failed to"
3754 " issue dump mailbox command ret 0x%x "
3756 mbx_wait_rc, mb->mbxStatus);
3760 if (phba->sli_rev == LPFC_SLI_REV4) {
3761 byte_count = pmb->u.mqe.un.mb_words[5];
3762 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
3763 if (byte_count > sizeof(struct static_vport_info) -
3765 byte_count = sizeof(struct static_vport_info)
3767 memcpy(vport_buff + offset, mp->virt, byte_count);
3768 offset += byte_count;
3770 if (mb->un.varDmp.word_cnt >
3771 sizeof(struct static_vport_info) - offset)
3772 mb->un.varDmp.word_cnt =
3773 sizeof(struct static_vport_info)
3775 byte_count = mb->un.varDmp.word_cnt;
3776 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
3777 vport_buff + offset,
3780 offset += byte_count;
3783 } while (byte_count &&
3784 offset < sizeof(struct static_vport_info));
3787 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
3788 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
3789 != VPORT_INFO_REV)) {
3790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3791 "0545 lpfc_create_static_vport bad"
3792 " information header 0x%x 0x%x\n",
3793 le32_to_cpu(vport_info->signature),
3794 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
3799 shost = lpfc_shost_from_vport(phba->pport);
3801 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
3802 memset(&vport_id, 0, sizeof(vport_id));
3803 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
3804 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
3805 if (!vport_id.port_name || !vport_id.node_name)
3808 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
3809 vport_id.vport_type = FC_PORTTYPE_NPIV;
3810 vport_id.disable = false;
3811 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
3813 if (!new_fc_vport) {
3814 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3815 "0546 lpfc_create_static_vport failed to"
3820 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
3821 vport->vport_flag |= STATIC_VPORT;
3826 if (mbx_wait_rc != MBX_TIMEOUT) {
3828 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
3829 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3832 mempool_free(pmb, phba->mbox_mem_pool);
3839 * This routine handles processing a Fabric REG_LOGIN mailbox
3840 * command upon completion. It is setup in the LPFC_MBOXQ
3841 * as the completion routine when the command is
3842 * handed off to the SLI layer.
3845 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3847 struct lpfc_vport *vport = pmb->vport;
3848 MAILBOX_t *mb = &pmb->u.mb;
3849 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
3850 struct lpfc_nodelist *ndlp;
3851 struct Scsi_Host *shost;
3853 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
3854 pmb->ctx_ndlp = NULL;
3855 pmb->ctx_buf = NULL;
3857 if (mb->mbxStatus) {
3858 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3859 "0258 Register Fabric login error: 0x%x\n",
3861 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3863 mempool_free(pmb, phba->mbox_mem_pool);
3865 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3866 /* FLOGI failed, use loop map to make discovery list */
3867 lpfc_disc_list_loopmap(vport);
3869 /* Start discovery */
3870 lpfc_disc_start(vport);
3871 /* Decrement the reference count to ndlp after the
3872 * reference to the ndlp are done.
3878 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3879 /* Decrement the reference count to ndlp after the reference
3880 * to the ndlp are done.
3886 if (phba->sli_rev < LPFC_SLI_REV4)
3887 ndlp->nlp_rpi = mb->un.varWords[0];
3888 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3889 ndlp->nlp_type |= NLP_FABRIC;
3890 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3892 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3893 /* when physical port receive logo donot start
3894 * vport discovery */
3895 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
3896 lpfc_start_fdiscs(phba);
3898 shost = lpfc_shost_from_vport(vport);
3899 spin_lock_irq(shost->host_lock);
3900 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
3901 spin_unlock_irq(shost->host_lock);
3903 lpfc_do_scr_ns_plogi(phba, vport);
3906 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3908 mempool_free(pmb, phba->mbox_mem_pool);
3910 /* Drop the reference count from the mbox at the end after
3911 * all the current reference to the ndlp have been done.
3918 * This routine will issue a GID_FT for each FC4 Type supported
3919 * by the driver. ALL GID_FTs must complete before discovery is started.
3922 lpfc_issue_gidft(struct lpfc_vport *vport)
3924 /* Good status, issue CT Request to NameServer */
3925 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3926 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) {
3927 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) {
3928 /* Cannot issue NameServer FCP Query, so finish up
3931 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
3932 "0604 %s FC TYPE %x %s\n",
3933 "Failed to issue GID_FT to ",
3935 "Finishing discovery.");
3941 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3942 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
3943 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) {
3944 /* Cannot issue NameServer NVME Query, so finish up
3947 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
3948 "0605 %s FC_TYPE %x %s %d\n",
3949 "Failed to issue GID_FT to ",
3951 "Finishing discovery: gidftinp ",
3953 if (vport->gidft_inp == 0)
3958 return vport->gidft_inp;
3962 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports
3963 * @vport: The virtual port for which this call is being executed.
3965 * This routine will issue a GID_PT to get a list of all N_Ports
3968 * 0 - Failure to issue a GID_PT
3972 lpfc_issue_gidpt(struct lpfc_vport *vport)
3974 /* Good status, issue CT Request to NameServer */
3975 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) {
3976 /* Cannot issue NameServer FCP Query, so finish up
3979 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
3980 "0606 %s Port TYPE %x %s\n",
3981 "Failed to issue GID_PT to ",
3983 "Finishing discovery.");
3991 * This routine handles processing a NameServer REG_LOGIN mailbox
3992 * command upon completion. It is setup in the LPFC_MBOXQ
3993 * as the completion routine when the command is
3994 * handed off to the SLI layer.
3997 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3999 MAILBOX_t *mb = &pmb->u.mb;
4000 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
4001 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
4002 struct lpfc_vport *vport = pmb->vport;
4004 pmb->ctx_buf = NULL;
4005 pmb->ctx_ndlp = NULL;
4006 vport->gidft_inp = 0;
4008 if (mb->mbxStatus) {
4009 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
4010 "0260 Register NameServer error: 0x%x\n",
4014 /* decrement the node reference count held for this
4015 * callback function.
4018 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4020 mempool_free(pmb, phba->mbox_mem_pool);
4022 /* If no other thread is using the ndlp, free it */
4023 lpfc_nlp_not_used(ndlp);
4025 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
4027 * RegLogin failed, use loop map to make discovery
4030 lpfc_disc_list_loopmap(vport);
4032 /* Start discovery */
4033 lpfc_disc_start(vport);
4036 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4040 if (phba->sli_rev < LPFC_SLI_REV4)
4041 ndlp->nlp_rpi = mb->un.varWords[0];
4042 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
4043 ndlp->nlp_type |= NLP_FABRIC;
4044 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4045 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,
4046 "0003 rpi:%x DID:%x flg:%x %d map%x x%px\n",
4047 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
4048 kref_read(&ndlp->kref),
4049 ndlp->nlp_usg_map, ndlp);
4051 if (vport->port_state < LPFC_VPORT_READY) {
4052 /* Link up discovery requires Fabric registration. */
4053 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
4054 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
4055 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
4056 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
4058 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4059 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP))
4060 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP);
4062 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4063 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME))
4064 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0,
4067 /* Issue SCR just before NameServer GID_FT Query */
4068 lpfc_issue_els_scr(vport, SCR_DID, 0);
4071 vport->fc_ns_retry = 0;
4072 if (lpfc_issue_gidft(vport) == 0)
4076 * At this point in time we may need to wait for multiple
4077 * SLI_CTNS_GID_FT CT commands to complete before we start discovery.
4079 * decrement the node reference count held for this
4080 * callback function.
4083 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4085 mempool_free(pmb, phba->mbox_mem_pool);
4091 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4093 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4094 struct fc_rport *rport;
4095 struct lpfc_rport_data *rdata;
4096 struct fc_rport_identifiers rport_ids;
4097 struct lpfc_hba *phba = vport->phba;
4099 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
4102 /* Remote port has reappeared. Re-register w/ FC transport */
4103 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
4104 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
4105 rport_ids.port_id = ndlp->nlp_DID;
4106 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
4109 * We leave our node pointer in rport->dd_data when we unregister a
4110 * FCP target port. But fc_remote_port_add zeros the space to which
4111 * rport->dd_data points. So, if we're reusing a previously
4112 * registered port, drop the reference that we took the last time we
4113 * registered the port.
4115 rport = ndlp->rport;
4117 rdata = rport->dd_data;
4118 /* break the link before dropping the ref */
4121 if (rdata->pnode == ndlp)
4123 rdata->pnode = NULL;
4125 /* drop reference for earlier registeration */
4126 put_device(&rport->dev);
4129 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
4130 "rport add: did:x%x flg:x%x type x%x",
4131 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4133 /* Don't add the remote port if unloading. */
4134 if (vport->load_flag & FC_UNLOADING)
4137 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
4138 if (!rport || !get_device(&rport->dev)) {
4139 dev_printk(KERN_WARNING, &phba->pcidev->dev,
4140 "Warning: fc_remote_port_add failed\n");
4144 /* initialize static port data */
4145 rport->maxframe_size = ndlp->nlp_maxframe;
4146 rport->supported_classes = ndlp->nlp_class_sup;
4147 rdata = rport->dd_data;
4148 rdata->pnode = lpfc_nlp_get(ndlp);
4150 if (ndlp->nlp_type & NLP_FCP_TARGET)
4151 rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET;
4152 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
4153 rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
4154 if (ndlp->nlp_type & NLP_NVME_INITIATOR)
4155 rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR;
4156 if (ndlp->nlp_type & NLP_NVME_TARGET)
4157 rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET;
4158 if (ndlp->nlp_type & NLP_NVME_DISCOVERY)
4159 rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY;
4161 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
4162 fc_remote_port_rolechg(rport, rport_ids.roles);
4164 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4165 "3183 rport register x%06x, rport x%px role x%x\n",
4166 ndlp->nlp_DID, rport, rport_ids.roles);
4168 if ((rport->scsi_target_id != -1) &&
4169 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
4170 ndlp->nlp_sid = rport->scsi_target_id;
4176 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
4178 struct fc_rport *rport = ndlp->rport;
4179 struct lpfc_vport *vport = ndlp->vport;
4181 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
4184 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
4185 "rport delete: did:x%x flg:x%x type x%x",
4186 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4188 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4189 "3184 rport unregister x%06x, rport x%px\n",
4190 ndlp->nlp_DID, rport);
4192 fc_remote_port_delete(rport);
4198 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
4200 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4201 unsigned long iflags;
4203 spin_lock_irqsave(shost->host_lock, iflags);
4205 case NLP_STE_UNUSED_NODE:
4206 vport->fc_unused_cnt += count;
4208 case NLP_STE_PLOGI_ISSUE:
4209 vport->fc_plogi_cnt += count;
4211 case NLP_STE_ADISC_ISSUE:
4212 vport->fc_adisc_cnt += count;
4214 case NLP_STE_REG_LOGIN_ISSUE:
4215 vport->fc_reglogin_cnt += count;
4217 case NLP_STE_PRLI_ISSUE:
4218 vport->fc_prli_cnt += count;
4220 case NLP_STE_UNMAPPED_NODE:
4221 vport->fc_unmap_cnt += count;
4223 case NLP_STE_MAPPED_NODE:
4224 vport->fc_map_cnt += count;
4226 case NLP_STE_NPR_NODE:
4227 if (vport->fc_npr_cnt == 0 && count == -1)
4228 vport->fc_npr_cnt = 0;
4230 vport->fc_npr_cnt += count;
4233 spin_unlock_irqrestore(shost->host_lock, iflags);
4237 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4238 int old_state, int new_state)
4240 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4242 if (new_state == NLP_STE_UNMAPPED_NODE) {
4243 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4244 ndlp->nlp_type |= NLP_FC_NODE;
4246 if (new_state == NLP_STE_MAPPED_NODE)
4247 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4248 if (new_state == NLP_STE_NPR_NODE)
4249 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
4251 /* FCP and NVME Transport interface */
4252 if ((old_state == NLP_STE_MAPPED_NODE ||
4253 old_state == NLP_STE_UNMAPPED_NODE)) {
4255 vport->phba->nport_event_cnt++;
4256 lpfc_unregister_remote_port(ndlp);
4259 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) {
4260 vport->phba->nport_event_cnt++;
4261 if (vport->phba->nvmet_support == 0) {
4262 /* Start devloss if target. */
4263 if (ndlp->nlp_type & NLP_NVME_TARGET)
4264 lpfc_nvme_unregister_port(vport, ndlp);
4266 /* NVMET has no upcall. */
4272 /* FCP and NVME Transport interfaces */
4274 if (new_state == NLP_STE_MAPPED_NODE ||
4275 new_state == NLP_STE_UNMAPPED_NODE) {
4276 if (ndlp->nlp_fc4_type ||
4277 ndlp->nlp_DID == Fabric_DID ||
4278 ndlp->nlp_DID == NameServer_DID ||
4279 ndlp->nlp_DID == FDMI_DID) {
4280 vport->phba->nport_event_cnt++;
4282 * Tell the fc transport about the port, if we haven't
4283 * already. If we have, and it's a scsi entity, be
4285 lpfc_register_remote_port(vport, ndlp);
4287 /* Notify the NVME transport of this new rport. */
4288 if (vport->phba->sli_rev >= LPFC_SLI_REV4 &&
4289 ndlp->nlp_fc4_type & NLP_FC4_NVME) {
4290 if (vport->phba->nvmet_support == 0) {
4291 /* Register this rport with the transport.
4292 * Only NVME Target Rports are registered with
4295 if (ndlp->nlp_type & NLP_NVME_TARGET) {
4296 vport->phba->nport_event_cnt++;
4297 lpfc_nvme_register_port(vport, ndlp);
4300 /* Just take an NDLP ref count since the
4301 * target does not register rports.
4308 if ((new_state == NLP_STE_MAPPED_NODE) &&
4309 (vport->stat_data_enabled)) {
4311 * A new target is discovered, if there is no buffer for
4312 * statistical data collection allocate buffer.
4314 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
4315 sizeof(struct lpfc_scsicmd_bkt),
4318 if (!ndlp->lat_data)
4319 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
4320 "0286 lpfc_nlp_state_cleanup failed to "
4321 "allocate statistical data buffer DID "
4322 "0x%x\n", ndlp->nlp_DID);
4325 * If the node just added to Mapped list was an FCP target,
4326 * but the remote port registration failed or assigned a target
4327 * id outside the presentable range - move the node to the
4330 if ((new_state == NLP_STE_MAPPED_NODE) &&
4331 (ndlp->nlp_type & NLP_FCP_TARGET) &&
4333 ndlp->rport->scsi_target_id == -1 ||
4334 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
4335 spin_lock_irq(shost->host_lock);
4336 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
4337 spin_unlock_irq(shost->host_lock);
4338 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4343 lpfc_nlp_state_name(char *buffer, size_t size, int state)
4345 static char *states[] = {
4346 [NLP_STE_UNUSED_NODE] = "UNUSED",
4347 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
4348 [NLP_STE_ADISC_ISSUE] = "ADISC",
4349 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
4350 [NLP_STE_PRLI_ISSUE] = "PRLI",
4351 [NLP_STE_LOGO_ISSUE] = "LOGO",
4352 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
4353 [NLP_STE_MAPPED_NODE] = "MAPPED",
4354 [NLP_STE_NPR_NODE] = "NPR",
4357 if (state < NLP_STE_MAX_STATE && states[state])
4358 strlcpy(buffer, states[state], size);
4360 snprintf(buffer, size, "unknown (%d)", state);
4365 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4368 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4369 int old_state = ndlp->nlp_state;
4370 char name1[16], name2[16];
4372 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4373 "0904 NPort state transition x%06x, %s -> %s\n",
4375 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
4376 lpfc_nlp_state_name(name2, sizeof(name2), state));
4378 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4379 "node statechg did:x%x old:%d ste:%d",
4380 ndlp->nlp_DID, old_state, state);
4382 if (old_state == NLP_STE_NPR_NODE &&
4383 state != NLP_STE_NPR_NODE)
4384 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4385 if (old_state == NLP_STE_UNMAPPED_NODE) {
4386 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
4387 ndlp->nlp_type &= ~NLP_FC_NODE;
4390 if (list_empty(&ndlp->nlp_listp)) {
4391 spin_lock_irq(shost->host_lock);
4392 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4393 spin_unlock_irq(shost->host_lock);
4394 } else if (old_state)
4395 lpfc_nlp_counters(vport, old_state, -1);
4397 ndlp->nlp_state = state;
4398 lpfc_nlp_counters(vport, state, 1);
4399 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
4403 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4405 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4407 if (list_empty(&ndlp->nlp_listp)) {
4408 spin_lock_irq(shost->host_lock);
4409 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4410 spin_unlock_irq(shost->host_lock);
4415 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4417 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4419 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4420 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4421 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4422 spin_lock_irq(shost->host_lock);
4423 list_del_init(&ndlp->nlp_listp);
4424 spin_unlock_irq(shost->host_lock);
4425 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4426 NLP_STE_UNUSED_NODE);
4430 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4432 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4433 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4434 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4435 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4436 NLP_STE_UNUSED_NODE);
4439 * lpfc_initialize_node - Initialize all fields of node object
4440 * @vport: Pointer to Virtual Port object.
4441 * @ndlp: Pointer to FC node object.
4442 * @did: FC_ID of the node.
4444 * This function is always called when node object need to be initialized.
4445 * It initializes all the fields of the node object. Although the reference
4446 * to phba from @ndlp can be obtained indirectly through it's reference to
4447 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4448 * to the life-span of the @ndlp might go beyond the existence of @vport as
4449 * the final release of ndlp is determined by its reference count. And, the
4450 * operation on @ndlp needs the reference to phba.
4453 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4456 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
4457 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
4458 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0);
4459 ndlp->nlp_DID = did;
4460 ndlp->vport = vport;
4461 ndlp->phba = vport->phba;
4462 ndlp->nlp_sid = NLP_NO_SID;
4463 ndlp->nlp_fc4_type = NLP_FC4_NONE;
4464 kref_init(&ndlp->kref);
4465 NLP_INT_NODE_ACT(ndlp);
4466 atomic_set(&ndlp->cmd_pending, 0);
4467 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4468 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
4471 struct lpfc_nodelist *
4472 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4475 struct lpfc_hba *phba = vport->phba;
4477 unsigned long flags;
4478 unsigned long *active_rrqs_xri_bitmap = NULL;
4479 int rpi = LPFC_RPI_ALLOC_ERROR;
4480 uint32_t defer_did = 0;
4485 if (phba->sli_rev == LPFC_SLI_REV4) {
4486 if (ndlp->nlp_rpi == LPFC_RPI_ALLOC_ERROR)
4487 rpi = lpfc_sli4_alloc_rpi(vport->phba);
4489 rpi = ndlp->nlp_rpi;
4491 if (rpi == LPFC_RPI_ALLOC_ERROR) {
4492 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4493 "0359 %s: ndlp:x%px "
4494 "usgmap:x%x refcnt:%d FAILED RPI "
4497 (void *)ndlp, ndlp->nlp_usg_map,
4498 kref_read(&ndlp->kref));
4503 spin_lock_irqsave(&phba->ndlp_lock, flags);
4504 /* The ndlp should not be in memory free mode */
4505 if (NLP_CHK_FREE_REQ(ndlp)) {
4506 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4507 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4508 "0277 %s: ndlp:x%px "
4509 "usgmap:x%x refcnt:%d\n",
4510 __func__, (void *)ndlp, ndlp->nlp_usg_map,
4511 kref_read(&ndlp->kref));
4514 /* The ndlp should not already be in active mode */
4515 if (NLP_CHK_NODE_ACT(ndlp)) {
4516 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4517 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4518 "0278 %s: ndlp:x%px "
4519 "usgmap:x%x refcnt:%d\n",
4520 __func__, (void *)ndlp, ndlp->nlp_usg_map,
4521 kref_read(&ndlp->kref));
4525 /* First preserve the orginal DID, xri_bitmap and some flags */
4526 did = ndlp->nlp_DID;
4527 flag = (ndlp->nlp_flag & NLP_UNREG_INP);
4528 if (flag & NLP_UNREG_INP)
4529 defer_did = ndlp->nlp_defer_did;
4530 if (phba->sli_rev == LPFC_SLI_REV4)
4531 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap;
4533 /* Zero ndlp except of ndlp linked list pointer */
4534 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
4535 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
4537 /* Next reinitialize and restore saved objects */
4538 lpfc_initialize_node(vport, ndlp, did);
4539 ndlp->nlp_flag |= flag;
4540 if (flag & NLP_UNREG_INP)
4541 ndlp->nlp_defer_did = defer_did;
4542 if (phba->sli_rev == LPFC_SLI_REV4)
4543 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap;
4545 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4546 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
4547 ndlp->nlp_rpi = rpi;
4548 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4549 "0008 rpi:%x DID:%x flg:%x refcnt:%d "
4550 "map:%x x%px\n", ndlp->nlp_rpi, ndlp->nlp_DID,
4552 kref_read(&ndlp->kref),
4553 ndlp->nlp_usg_map, ndlp);
4557 if (state != NLP_STE_UNUSED_NODE)
4558 lpfc_nlp_set_state(vport, ndlp, state);
4560 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4561 "0013 rpi:%x DID:%x flg:%x refcnt:%d "
4562 "map:%x x%px STATE=UNUSED\n",
4563 ndlp->nlp_rpi, ndlp->nlp_DID,
4565 kref_read(&ndlp->kref),
4566 ndlp->nlp_usg_map, ndlp);
4568 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4569 "node enable: did:x%x",
4570 ndlp->nlp_DID, 0, 0);
4574 if (phba->sli_rev == LPFC_SLI_REV4) {
4575 lpfc_sli4_free_rpi(vport->phba, rpi);
4576 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
4582 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4585 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
4586 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
4587 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4588 * until ALL other outstanding threads have completed. We check
4589 * that the ndlp not already in the UNUSED state before we proceed.
4591 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4593 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
4594 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
4595 lpfc_cleanup_vports_rrqs(vport, ndlp);
4596 lpfc_unreg_rpi(vport, ndlp);
4604 * Start / ReStart rescue timer for Discovery / RSCN handling
4607 lpfc_set_disctmo(struct lpfc_vport *vport)
4609 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4610 struct lpfc_hba *phba = vport->phba;
4613 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
4614 /* For FAN, timeout should be greater than edtov */
4615 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
4617 /* Normal discovery timeout should be > than ELS/CT timeout
4618 * FC spec states we need 3 * ratov for CT requests
4620 tmo = ((phba->fc_ratov * 3) + 3);
4624 if (!timer_pending(&vport->fc_disctmo)) {
4625 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4626 "set disc timer: tmo:x%x state:x%x flg:x%x",
4627 tmo, vport->port_state, vport->fc_flag);
4630 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));
4631 spin_lock_irq(shost->host_lock);
4632 vport->fc_flag |= FC_DISC_TMO;
4633 spin_unlock_irq(shost->host_lock);
4635 /* Start Discovery Timer state <hba_state> */
4636 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4637 "0247 Start Discovery Timer state x%x "
4638 "Data: x%x x%lx x%x x%x\n",
4639 vport->port_state, tmo,
4640 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
4641 vport->fc_adisc_cnt);
4647 * Cancel rescue timer for Discovery / RSCN handling
4650 lpfc_can_disctmo(struct lpfc_vport *vport)
4652 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4653 unsigned long iflags;
4655 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4656 "can disc timer: state:x%x rtry:x%x flg:x%x",
4657 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
4659 /* Turn off discovery timer if its running */
4660 if (vport->fc_flag & FC_DISC_TMO) {
4661 spin_lock_irqsave(shost->host_lock, iflags);
4662 vport->fc_flag &= ~FC_DISC_TMO;
4663 spin_unlock_irqrestore(shost->host_lock, iflags);
4664 del_timer_sync(&vport->fc_disctmo);
4665 spin_lock_irqsave(&vport->work_port_lock, iflags);
4666 vport->work_port_events &= ~WORKER_DISC_TMO;
4667 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
4670 /* Cancel Discovery Timer state <hba_state> */
4671 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4672 "0248 Cancel Discovery Timer state x%x "
4673 "Data: x%x x%x x%x\n",
4674 vport->port_state, vport->fc_flag,
4675 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
4680 * Check specified ring for outstanding IOCB on the SLI queue
4681 * Return true if iocb matches the specified nport
4684 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
4685 struct lpfc_sli_ring *pring,
4686 struct lpfc_iocbq *iocb,
4687 struct lpfc_nodelist *ndlp)
4689 IOCB_t *icmd = &iocb->iocb;
4690 struct lpfc_vport *vport = ndlp->vport;
4692 if (iocb->vport != vport)
4695 if (pring->ringno == LPFC_ELS_RING) {
4696 switch (icmd->ulpCommand) {
4697 case CMD_GEN_REQUEST64_CR:
4698 if (iocb->context_un.ndlp == ndlp)
4701 case CMD_ELS_REQUEST64_CR:
4702 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
4705 case CMD_XMIT_ELS_RSP64_CX:
4706 if (iocb->context1 == (uint8_t *) ndlp)
4710 } else if (pring->ringno == LPFC_FCP_RING) {
4711 /* Skip match check if waiting to relogin to FCP target */
4712 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4713 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
4716 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
4724 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba,
4725 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring,
4726 struct list_head *dequeue_list)
4728 struct lpfc_iocbq *iocb, *next_iocb;
4730 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
4731 /* Check to see if iocb matches the nport */
4732 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
4733 /* match, dequeue */
4734 list_move_tail(&iocb->list, dequeue_list);
4739 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba,
4740 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
4742 struct lpfc_sli *psli = &phba->sli;
4745 spin_lock_irq(&phba->hbalock);
4746 for (i = 0; i < psli->num_rings; i++)
4747 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i],
4749 spin_unlock_irq(&phba->hbalock);
4753 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba,
4754 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
4756 struct lpfc_sli_ring *pring;
4757 struct lpfc_queue *qp = NULL;
4759 spin_lock_irq(&phba->hbalock);
4760 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
4764 spin_lock(&pring->ring_lock);
4765 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list);
4766 spin_unlock(&pring->ring_lock);
4768 spin_unlock_irq(&phba->hbalock);
4772 * Free resources / clean up outstanding I/Os
4773 * associated with nlp_rpi in the LPFC_NODELIST entry.
4776 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
4778 LIST_HEAD(completions);
4780 lpfc_fabric_abort_nport(ndlp);
4783 * Everything that matches on txcmplq will be returned
4784 * by firmware with a no rpi error.
4786 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4787 if (phba->sli_rev != LPFC_SLI_REV4)
4788 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions);
4790 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions);
4793 /* Cancel all the IOCBs from the completions list */
4794 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4801 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
4802 * @phba: Pointer to HBA context object.
4803 * @pmb: Pointer to mailbox object.
4805 * This function will issue an ELS LOGO command after completing
4809 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4811 struct lpfc_vport *vport = pmb->vport;
4812 struct lpfc_nodelist *ndlp;
4814 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp);
4817 lpfc_issue_els_logo(vport, ndlp, 0);
4818 mempool_free(pmb, phba->mbox_mem_pool);
4820 /* Check to see if there are any deferred events to process */
4821 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
4822 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
4823 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4824 "1434 UNREG cmpl deferred logo x%x "
4825 "on NPort x%x Data: x%x x%px\n",
4826 ndlp->nlp_rpi, ndlp->nlp_DID,
4827 ndlp->nlp_defer_did, ndlp);
4829 ndlp->nlp_flag &= ~NLP_UNREG_INP;
4830 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
4831 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
4833 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
4834 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
4835 ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
4836 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
4838 ndlp->nlp_flag &= ~NLP_UNREG_INP;
4843 * Sets the mailbox completion handler to be used for the
4844 * unreg_rpi command. The handler varies based on the state of
4845 * the port and what will be happening to the rpi next.
4848 lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport,
4849 struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox)
4851 unsigned long iflags;
4853 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
4854 mbox->ctx_ndlp = ndlp;
4855 mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
4857 } else if (phba->sli_rev == LPFC_SLI_REV4 &&
4858 (!(vport->load_flag & FC_UNLOADING)) &&
4859 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
4860 LPFC_SLI_INTF_IF_TYPE_2) &&
4861 (kref_read(&ndlp->kref) > 0)) {
4862 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
4863 mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr;
4865 if (vport->load_flag & FC_UNLOADING) {
4866 if (phba->sli_rev == LPFC_SLI_REV4) {
4867 spin_lock_irqsave(&vport->phba->ndlp_lock,
4869 ndlp->nlp_flag |= NLP_RELEASE_RPI;
4870 spin_unlock_irqrestore(&vport->phba->ndlp_lock,
4875 mbox->ctx_ndlp = ndlp;
4876 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4881 * Free rpi associated with LPFC_NODELIST entry.
4882 * This routine is called from lpfc_freenode(), when we are removing
4883 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4884 * LOGO that completes successfully, and we are waiting to PLOGI back
4885 * to the remote NPort. In addition, it is called after we receive
4886 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4887 * we are waiting to PLOGI back to the remote NPort.
4890 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4892 struct lpfc_hba *phba = vport->phba;
4894 int rc, acc_plogi = 1;
4897 if (ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4898 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) {
4899 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
4900 lpfc_printf_vlog(vport, KERN_INFO,
4901 LOG_NODE | LOG_DISCOVERY,
4902 "3366 RPI x%x needs to be "
4903 "unregistered nlp_flag x%x "
4905 ndlp->nlp_rpi, ndlp->nlp_flag,
4908 /* If there is already an UNREG in progress for this ndlp,
4909 * no need to queue up another one.
4911 if (ndlp->nlp_flag & NLP_UNREG_INP) {
4912 lpfc_printf_vlog(vport, KERN_INFO,
4913 LOG_NODE | LOG_DISCOVERY,
4914 "1436 unreg_rpi SKIP UNREG x%x on "
4915 "NPort x%x deferred x%x flg x%x "
4917 ndlp->nlp_rpi, ndlp->nlp_DID,
4918 ndlp->nlp_defer_did,
4919 ndlp->nlp_flag, ndlp);
4923 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4925 /* SLI4 ports require the physical rpi value. */
4926 rpi = ndlp->nlp_rpi;
4927 if (phba->sli_rev == LPFC_SLI_REV4)
4928 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
4930 lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
4931 mbox->vport = vport;
4932 lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox);
4933 if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr)
4935 * accept PLOGIs after unreg_rpi_cmpl
4938 if (((ndlp->nlp_DID & Fabric_DID_MASK) !=
4940 (!(vport->fc_flag & FC_OFFLINE_MODE)))
4941 ndlp->nlp_flag |= NLP_UNREG_INP;
4943 lpfc_printf_vlog(vport, KERN_INFO,
4944 LOG_NODE | LOG_DISCOVERY,
4945 "1433 unreg_rpi UNREG x%x on "
4946 "NPort x%x deferred flg x%x "
4948 ndlp->nlp_rpi, ndlp->nlp_DID,
4949 ndlp->nlp_flag, ndlp);
4951 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4952 if (rc == MBX_NOT_FINISHED) {
4953 mempool_free(mbox, phba->mbox_mem_pool);
4957 lpfc_no_rpi(phba, ndlp);
4959 if (phba->sli_rev != LPFC_SLI_REV4)
4961 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
4962 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4964 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4967 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4972 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4973 * @phba: pointer to lpfc hba data structure.
4975 * This routine is invoked to unregister all the currently registered RPIs
4979 lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
4981 struct lpfc_vport **vports;
4982 struct lpfc_nodelist *ndlp;
4983 struct Scsi_Host *shost;
4986 vports = lpfc_create_vport_work_array(phba);
4988 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
4989 "2884 Vport array allocation failed \n");
4992 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4993 shost = lpfc_shost_from_vport(vports[i]);
4994 spin_lock_irq(shost->host_lock);
4995 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
4996 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4997 /* The mempool_alloc might sleep */
4998 spin_unlock_irq(shost->host_lock);
4999 lpfc_unreg_rpi(vports[i], ndlp);
5000 spin_lock_irq(shost->host_lock);
5003 spin_unlock_irq(shost->host_lock);
5005 lpfc_destroy_vport_work_array(phba, vports);
5009 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
5011 struct lpfc_hba *phba = vport->phba;
5015 if (phba->sli_rev == LPFC_SLI_REV4) {
5016 lpfc_sli4_unreg_all_rpis(vport);
5020 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5022 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
5024 mbox->vport = vport;
5025 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5026 mbox->ctx_ndlp = NULL;
5027 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
5028 if (rc != MBX_TIMEOUT)
5029 mempool_free(mbox, phba->mbox_mem_pool);
5031 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
5032 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
5033 "1836 Could not issue "
5034 "unreg_login(all_rpis) status %d\n", rc);
5039 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
5041 struct lpfc_hba *phba = vport->phba;
5045 /* Unreg DID is an SLI3 operation. */
5046 if (phba->sli_rev > LPFC_SLI_REV3)
5049 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5051 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
5053 mbox->vport = vport;
5054 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5055 mbox->ctx_ndlp = NULL;
5056 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
5057 if (rc != MBX_TIMEOUT)
5058 mempool_free(mbox, phba->mbox_mem_pool);
5060 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
5061 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
5062 "1815 Could not issue "
5063 "unreg_did (default rpis) status %d\n",
5069 * Free resources associated with LPFC_NODELIST entry
5070 * so it can be freed.
5073 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5075 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5076 struct lpfc_hba *phba = vport->phba;
5077 LPFC_MBOXQ_t *mb, *nextmb;
5078 struct lpfc_dmabuf *mp;
5079 unsigned long iflags;
5081 /* Cleanup node for NPort <nlp_DID> */
5082 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5083 "0900 Cleanup node for NPort x%x "
5084 "Data: x%x x%x x%x\n",
5085 ndlp->nlp_DID, ndlp->nlp_flag,
5086 ndlp->nlp_state, ndlp->nlp_rpi);
5087 if (NLP_CHK_FREE_REQ(ndlp)) {
5088 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
5089 "0280 %s: ndlp:x%px "
5090 "usgmap:x%x refcnt:%d\n",
5091 __func__, (void *)ndlp, ndlp->nlp_usg_map,
5092 kref_read(&ndlp->kref));
5093 lpfc_dequeue_node(vport, ndlp);
5095 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
5096 "0281 %s: ndlp:x%px "
5097 "usgmap:x%x refcnt:%d\n",
5098 __func__, (void *)ndlp, ndlp->nlp_usg_map,
5099 kref_read(&ndlp->kref));
5100 lpfc_disable_node(vport, ndlp);
5104 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
5106 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
5107 if ((mb = phba->sli.mbox_active)) {
5108 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
5109 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
5110 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
5111 mb->ctx_ndlp = NULL;
5112 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5116 spin_lock_irq(&phba->hbalock);
5117 /* Cleanup REG_LOGIN completions which are not yet processed */
5118 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
5119 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
5120 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
5121 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp))
5124 mb->ctx_ndlp = NULL;
5125 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5128 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
5129 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
5130 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
5131 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
5132 mp = (struct lpfc_dmabuf *)(mb->ctx_buf);
5134 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
5137 list_del(&mb->list);
5138 mempool_free(mb, phba->mbox_mem_pool);
5139 /* We shall not invoke the lpfc_nlp_put to decrement
5140 * the ndlp reference count as we are in the process
5141 * of lpfc_nlp_release.
5145 spin_unlock_irq(&phba->hbalock);
5147 lpfc_els_abort(phba, ndlp);
5149 spin_lock_irq(shost->host_lock);
5150 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
5151 spin_unlock_irq(shost->host_lock);
5153 ndlp->nlp_last_elscmd = 0;
5154 del_timer_sync(&ndlp->nlp_delayfunc);
5156 list_del_init(&ndlp->els_retry_evt.evt_listp);
5157 list_del_init(&ndlp->dev_loss_evt.evt_listp);
5158 lpfc_cleanup_vports_rrqs(vport, ndlp);
5159 if (phba->sli_rev == LPFC_SLI_REV4)
5160 ndlp->nlp_flag |= NLP_RELEASE_RPI;
5161 if (!lpfc_unreg_rpi(vport, ndlp)) {
5162 /* Clean up unregistered and non freed rpis */
5163 if ((ndlp->nlp_flag & NLP_RELEASE_RPI) &&
5164 !(ndlp->nlp_rpi == LPFC_RPI_ALLOC_ERROR)) {
5165 lpfc_sli4_free_rpi(vport->phba,
5167 spin_lock_irqsave(&vport->phba->ndlp_lock,
5169 ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
5170 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
5171 spin_unlock_irqrestore(&vport->phba->ndlp_lock,
5179 * Check to see if we can free the nlp back to the freelist.
5180 * If we are in the middle of using the nlp in the discovery state
5181 * machine, defer the free till we reach the end of the state machine.
5184 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5186 struct lpfc_hba *phba = vport->phba;
5187 struct lpfc_rport_data *rdata;
5188 struct fc_rport *rport;
5192 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5193 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
5194 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
5195 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) &&
5196 phba->sli_rev != LPFC_SLI_REV4) {
5197 /* For this case we need to cleanup the default rpi
5198 * allocated by the firmware.
5200 lpfc_printf_vlog(vport, KERN_INFO,
5201 LOG_NODE | LOG_DISCOVERY,
5202 "0005 Cleanup Default rpi:x%x DID:x%x flg:x%x "
5203 "ref %d map:x%x ndlp x%px\n",
5204 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
5205 kref_read(&ndlp->kref),
5206 ndlp->nlp_usg_map, ndlp);
5207 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
5209 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
5210 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi);
5212 mempool_free(mbox, phba->mbox_mem_pool);
5215 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
5216 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
5217 mbox->vport = vport;
5218 mbox->ctx_ndlp = ndlp;
5219 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5220 if (rc == MBX_NOT_FINISHED) {
5221 mempool_free(mbox, phba->mbox_mem_pool);
5226 lpfc_cleanup_node(vport, ndlp);
5229 * ndlp->rport must be set to NULL before it reaches here
5230 * i.e. break rport/node link before doing lpfc_nlp_put for
5231 * registered rport and then drop the reference of rport.
5235 * extra lpfc_nlp_put dropped the reference of ndlp
5236 * for registered rport so need to cleanup rport
5238 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
5239 "0940 removed node x%px DID x%x "
5240 "rpi %d rport not null x%px\n",
5241 ndlp, ndlp->nlp_DID, ndlp->nlp_rpi,
5243 rport = ndlp->rport;
5244 rdata = rport->dd_data;
5245 rdata->pnode = NULL;
5247 put_device(&rport->dev);
5252 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
5255 D_ID mydid, ndlpdid, matchdid;
5257 if (did == Bcast_DID)
5260 /* First check for Direct match */
5261 if (ndlp->nlp_DID == did)
5264 /* Next check for area/domain identically equals 0 match */
5265 mydid.un.word = vport->fc_myDID;
5266 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
5270 matchdid.un.word = did;
5271 ndlpdid.un.word = ndlp->nlp_DID;
5272 if (matchdid.un.b.id == ndlpdid.un.b.id) {
5273 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
5274 (mydid.un.b.area == matchdid.un.b.area)) {
5275 /* This code is supposed to match the ID
5276 * for a private loop device that is
5277 * connect to fl_port. But we need to
5278 * check that the port did not just go
5279 * from pt2pt to fabric or we could end
5280 * up matching ndlp->nlp_DID 000001 to
5281 * fabric DID 0x20101
5283 if ((ndlpdid.un.b.domain == 0) &&
5284 (ndlpdid.un.b.area == 0)) {
5285 if (ndlpdid.un.b.id &&
5286 vport->phba->fc_topology ==
5293 matchdid.un.word = ndlp->nlp_DID;
5294 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
5295 (mydid.un.b.area == ndlpdid.un.b.area)) {
5296 if ((matchdid.un.b.domain == 0) &&
5297 (matchdid.un.b.area == 0)) {
5298 if (matchdid.un.b.id)
5306 /* Search for a nodelist entry */
5307 static struct lpfc_nodelist *
5308 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
5310 struct lpfc_nodelist *ndlp;
5313 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5314 if (lpfc_matchdid(vport, ndlp, did)) {
5315 data1 = (((uint32_t)ndlp->nlp_state << 24) |
5316 ((uint32_t)ndlp->nlp_xri << 16) |
5317 ((uint32_t)ndlp->nlp_type << 8) |
5318 ((uint32_t)ndlp->nlp_usg_map & 0xff));
5319 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5320 "0929 FIND node DID "
5321 "Data: x%px x%x x%x x%x x%x x%px\n",
5322 ndlp, ndlp->nlp_DID,
5323 ndlp->nlp_flag, data1, ndlp->nlp_rpi,
5324 ndlp->active_rrqs_xri_bitmap);
5329 /* FIND node did <did> NOT FOUND */
5330 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5331 "0932 FIND node did x%x NOT FOUND.\n", did);
5335 struct lpfc_nodelist *
5336 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
5338 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5339 struct lpfc_nodelist *ndlp;
5340 unsigned long iflags;
5342 spin_lock_irqsave(shost->host_lock, iflags);
5343 ndlp = __lpfc_findnode_did(vport, did);
5344 spin_unlock_irqrestore(shost->host_lock, iflags);
5348 struct lpfc_nodelist *
5349 lpfc_findnode_mapped(struct lpfc_vport *vport)
5351 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5352 struct lpfc_nodelist *ndlp;
5354 unsigned long iflags;
5356 spin_lock_irqsave(shost->host_lock, iflags);
5358 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5359 if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE ||
5360 ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
5361 data1 = (((uint32_t)ndlp->nlp_state << 24) |
5362 ((uint32_t)ndlp->nlp_xri << 16) |
5363 ((uint32_t)ndlp->nlp_type << 8) |
5364 ((uint32_t)ndlp->nlp_rpi & 0xff));
5365 spin_unlock_irqrestore(shost->host_lock, iflags);
5366 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5367 "2025 FIND node DID "
5368 "Data: x%px x%x x%x x%x x%px\n",
5369 ndlp, ndlp->nlp_DID,
5370 ndlp->nlp_flag, data1,
5371 ndlp->active_rrqs_xri_bitmap);
5375 spin_unlock_irqrestore(shost->host_lock, iflags);
5377 /* FIND node did <did> NOT FOUND */
5378 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5379 "2026 FIND mapped did NOT FOUND.\n");
5383 struct lpfc_nodelist *
5384 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
5386 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5387 struct lpfc_nodelist *ndlp;
5389 ndlp = lpfc_findnode_did(vport, did);
5391 if (vport->phba->nvmet_support)
5393 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
5394 lpfc_rscn_payload_check(vport, did) == 0)
5396 ndlp = lpfc_nlp_init(vport, did);
5399 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5401 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5402 "6453 Setup New Node 2B_DISC x%x "
5403 "Data:x%x x%x x%x\n",
5404 ndlp->nlp_DID, ndlp->nlp_flag,
5405 ndlp->nlp_state, vport->fc_flag);
5407 spin_lock_irq(shost->host_lock);
5408 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5409 spin_unlock_irq(shost->host_lock);
5411 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5412 if (vport->phba->nvmet_support)
5414 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
5416 lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI,
5417 "0014 Could not enable ndlp\n");
5420 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5421 "6454 Setup Enabled Node 2B_DISC x%x "
5422 "Data:x%x x%x x%x\n",
5423 ndlp->nlp_DID, ndlp->nlp_flag,
5424 ndlp->nlp_state, vport->fc_flag);
5426 spin_lock_irq(shost->host_lock);
5427 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5428 spin_unlock_irq(shost->host_lock);
5432 /* The NVME Target does not want to actively manage an rport.
5433 * The goal is to allow the target to reset its state and clear
5434 * pending IO in preparation for the initiator to recover.
5436 if ((vport->fc_flag & FC_RSCN_MODE) &&
5437 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
5438 if (lpfc_rscn_payload_check(vport, did)) {
5440 /* Since this node is marked for discovery,
5441 * delay timeout is not needed.
5443 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5445 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5446 "6455 Setup RSCN Node 2B_DISC x%x "
5447 "Data:x%x x%x x%x\n",
5448 ndlp->nlp_DID, ndlp->nlp_flag,
5449 ndlp->nlp_state, vport->fc_flag);
5451 /* NVME Target mode waits until rport is known to be
5452 * impacted by the RSCN before it transitions. No
5453 * active management - just go to NPR provided the
5454 * node had a valid login.
5456 if (vport->phba->nvmet_support)
5459 /* If we've already received a PLOGI from this NPort
5460 * we don't need to try to discover it again.
5462 if (ndlp->nlp_flag & NLP_RCV_PLOGI &&
5464 (NLP_FCP_TARGET | NLP_NVME_TARGET)))
5467 ndlp->nlp_prev_state = ndlp->nlp_state;
5468 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5470 spin_lock_irq(shost->host_lock);
5471 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5472 spin_unlock_irq(shost->host_lock);
5474 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5475 "6456 Skip Setup RSCN Node x%x "
5476 "Data:x%x x%x x%x\n",
5477 ndlp->nlp_DID, ndlp->nlp_flag,
5478 ndlp->nlp_state, vport->fc_flag);
5482 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5483 "6457 Setup Active Node 2B_DISC x%x "
5484 "Data:x%x x%x x%x\n",
5485 ndlp->nlp_DID, ndlp->nlp_flag,
5486 ndlp->nlp_state, vport->fc_flag);
5488 /* If the initiator received a PLOGI from this NPort or if the
5489 * initiator is already in the process of discovery on it,
5490 * there's no need to try to discover it again.
5492 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
5493 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5494 (!vport->phba->nvmet_support &&
5495 ndlp->nlp_flag & NLP_RCV_PLOGI))
5498 if (vport->phba->nvmet_support)
5501 /* Moving to NPR state clears unsolicited flags and
5502 * allows for rediscovery
5504 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5506 spin_lock_irq(shost->host_lock);
5507 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5508 spin_unlock_irq(shost->host_lock);
5513 /* Build a list of nodes to discover based on the loopmap */
5515 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
5517 struct lpfc_hba *phba = vport->phba;
5519 uint32_t alpa, index;
5521 if (!lpfc_is_link_up(phba))
5524 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
5527 /* Check for loop map present or not */
5528 if (phba->alpa_map[0]) {
5529 for (j = 1; j <= phba->alpa_map[0]; j++) {
5530 alpa = phba->alpa_map[j];
5531 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
5533 lpfc_setup_disc_node(vport, alpa);
5536 /* No alpamap, so try all alpa's */
5537 for (j = 0; j < FC_MAXLOOP; j++) {
5538 /* If cfg_scan_down is set, start from highest
5539 * ALPA (0xef) to lowest (0x1).
5541 if (vport->cfg_scan_down)
5544 index = FC_MAXLOOP - j - 1;
5545 alpa = lpfcAlpaArray[index];
5546 if ((vport->fc_myDID & 0xff) == alpa)
5548 lpfc_setup_disc_node(vport, alpa);
5556 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
5559 struct lpfc_sli *psli = &phba->sli;
5560 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING];
5561 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING];
5565 * if it's not a physical port or if we already send
5566 * clear_la then don't send it.
5568 if ((phba->link_state >= LPFC_CLEAR_LA) ||
5569 (vport->port_type != LPFC_PHYSICAL_PORT) ||
5570 (phba->sli_rev == LPFC_SLI_REV4))
5573 /* Link up discovery */
5574 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
5575 phba->link_state = LPFC_CLEAR_LA;
5576 lpfc_clear_la(phba, mbox);
5577 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
5578 mbox->vport = vport;
5579 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5580 if (rc == MBX_NOT_FINISHED) {
5581 mempool_free(mbox, phba->mbox_mem_pool);
5582 lpfc_disc_flush_list(vport);
5583 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5584 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5585 phba->link_state = LPFC_HBA_ERROR;
5590 /* Reg_vpi to tell firmware to resume normal operations */
5592 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
5594 LPFC_MBOXQ_t *regvpimbox;
5596 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5598 lpfc_reg_vpi(vport, regvpimbox);
5599 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
5600 regvpimbox->vport = vport;
5601 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
5602 == MBX_NOT_FINISHED) {
5603 mempool_free(regvpimbox, phba->mbox_mem_pool);
5608 /* Start Link up / RSCN discovery on NPR nodes */
5610 lpfc_disc_start(struct lpfc_vport *vport)
5612 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5613 struct lpfc_hba *phba = vport->phba;
5615 uint32_t clear_la_pending;
5617 if (!lpfc_is_link_up(phba)) {
5618 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5619 "3315 Link is not up %x\n",
5624 if (phba->link_state == LPFC_CLEAR_LA)
5625 clear_la_pending = 1;
5627 clear_la_pending = 0;
5629 if (vport->port_state < LPFC_VPORT_READY)
5630 vport->port_state = LPFC_DISC_AUTH;
5632 lpfc_set_disctmo(vport);
5634 vport->fc_prevDID = vport->fc_myDID;
5635 vport->num_disc_nodes = 0;
5637 /* Start Discovery state <hba_state> */
5638 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5639 "0202 Start Discovery port state x%x "
5640 "flg x%x Data: x%x x%x x%x\n",
5641 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
5642 vport->fc_adisc_cnt, vport->fc_npr_cnt);
5644 /* First do ADISCs - if any */
5645 num_sent = lpfc_els_disc_adisc(vport);
5650 /* Register the VPI for SLI3, NPIV only. */
5651 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5652 !(vport->fc_flag & FC_PT2PT) &&
5653 !(vport->fc_flag & FC_RSCN_MODE) &&
5654 (phba->sli_rev < LPFC_SLI_REV4)) {
5655 lpfc_issue_clear_la(phba, vport);
5656 lpfc_issue_reg_vpi(phba, vport);
5661 * For SLI2, we need to set port_state to READY and continue
5664 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
5665 /* If we get here, there is nothing to ADISC */
5666 lpfc_issue_clear_la(phba, vport);
5668 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
5669 vport->num_disc_nodes = 0;
5670 /* go thru NPR nodes and issue ELS PLOGIs */
5671 if (vport->fc_npr_cnt)
5672 lpfc_els_disc_plogi(vport);
5674 if (!vport->num_disc_nodes) {
5675 spin_lock_irq(shost->host_lock);
5676 vport->fc_flag &= ~FC_NDISC_ACTIVE;
5677 spin_unlock_irq(shost->host_lock);
5678 lpfc_can_disctmo(vport);
5681 vport->port_state = LPFC_VPORT_READY;
5683 /* Next do PLOGIs - if any */
5684 num_sent = lpfc_els_disc_plogi(vport);
5689 if (vport->fc_flag & FC_RSCN_MODE) {
5690 /* Check to see if more RSCNs came in while we
5691 * were processing this one.
5693 if ((vport->fc_rscn_id_cnt == 0) &&
5694 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
5695 spin_lock_irq(shost->host_lock);
5696 vport->fc_flag &= ~FC_RSCN_MODE;
5697 spin_unlock_irq(shost->host_lock);
5698 lpfc_can_disctmo(vport);
5700 lpfc_els_handle_rscn(vport);
5707 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
5708 * ring the match the sppecified nodelist.
5711 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
5713 LIST_HEAD(completions);
5715 struct lpfc_iocbq *iocb, *next_iocb;
5716 struct lpfc_sli_ring *pring;
5718 pring = lpfc_phba_elsring(phba);
5719 if (unlikely(!pring))
5722 /* Error matching iocb on txq or txcmplq
5723 * First check the txq.
5725 spin_lock_irq(&phba->hbalock);
5726 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
5727 if (iocb->context1 != ndlp) {
5731 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
5732 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
5734 list_move_tail(&iocb->list, &completions);
5738 /* Next check the txcmplq */
5739 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
5740 if (iocb->context1 != ndlp) {
5744 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
5745 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
5746 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
5749 spin_unlock_irq(&phba->hbalock);
5751 /* Cancel all the IOCBs from the completions list */
5752 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
5757 lpfc_disc_flush_list(struct lpfc_vport *vport)
5759 struct lpfc_nodelist *ndlp, *next_ndlp;
5760 struct lpfc_hba *phba = vport->phba;
5762 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
5763 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5765 if (!NLP_CHK_NODE_ACT(ndlp))
5767 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5768 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
5769 lpfc_free_tx(phba, ndlp);
5776 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
5778 lpfc_els_flush_rscn(vport);
5779 lpfc_els_flush_cmd(vport);
5780 lpfc_disc_flush_list(vport);
5783 /*****************************************************************************/
5785 * NAME: lpfc_disc_timeout
5787 * FUNCTION: Fibre Channel driver discovery timeout routine.
5789 * EXECUTION ENVIRONMENT: interrupt only
5797 /*****************************************************************************/
5799 lpfc_disc_timeout(struct timer_list *t)
5801 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo);
5802 struct lpfc_hba *phba = vport->phba;
5803 uint32_t tmo_posted;
5804 unsigned long flags = 0;
5806 if (unlikely(!phba))
5809 spin_lock_irqsave(&vport->work_port_lock, flags);
5810 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
5812 vport->work_port_events |= WORKER_DISC_TMO;
5813 spin_unlock_irqrestore(&vport->work_port_lock, flags);
5816 lpfc_worker_wake_up(phba);
5821 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
5823 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5824 struct lpfc_hba *phba = vport->phba;
5825 struct lpfc_sli *psli = &phba->sli;
5826 struct lpfc_nodelist *ndlp, *next_ndlp;
5827 LPFC_MBOXQ_t *initlinkmbox;
5828 int rc, clrlaerr = 0;
5830 if (!(vport->fc_flag & FC_DISC_TMO))
5833 spin_lock_irq(shost->host_lock);
5834 vport->fc_flag &= ~FC_DISC_TMO;
5835 spin_unlock_irq(shost->host_lock);
5837 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
5838 "disc timeout: state:x%x rtry:x%x flg:x%x",
5839 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
5841 switch (vport->port_state) {
5843 case LPFC_LOCAL_CFG_LINK:
5845 * port_state is identically LPFC_LOCAL_CFG_LINK while
5846 * waiting for FAN timeout
5848 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
5849 "0221 FAN timeout\n");
5851 /* Start discovery by sending FLOGI, clean up old rpis */
5852 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5854 if (!NLP_CHK_NODE_ACT(ndlp))
5856 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
5858 if (ndlp->nlp_type & NLP_FABRIC) {
5859 /* Clean up the ndlp on Fabric connections */
5860 lpfc_drop_node(vport, ndlp);
5862 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
5863 /* Fail outstanding IO now since device
5864 * is marked for PLOGI.
5866 lpfc_unreg_rpi(vport, ndlp);
5869 if (vport->port_state != LPFC_FLOGI) {
5870 if (phba->sli_rev <= LPFC_SLI_REV3)
5871 lpfc_initial_flogi(vport);
5873 lpfc_issue_init_vfi(vport);
5880 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
5881 /* Initial FLOGI timeout */
5882 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5883 "0222 Initial %s timeout\n",
5884 vport->vpi ? "FDISC" : "FLOGI");
5886 /* Assume no Fabric and go on with discovery.
5887 * Check for outstanding ELS FLOGI to abort.
5890 /* FLOGI failed, so just use loop map to make discovery list */
5891 lpfc_disc_list_loopmap(vport);
5893 /* Start discovery */
5894 lpfc_disc_start(vport);
5897 case LPFC_FABRIC_CFG_LINK:
5898 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5900 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5901 "0223 Timeout while waiting for "
5902 "NameServer login\n");
5903 /* Next look for NameServer ndlp */
5904 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5905 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
5906 lpfc_els_abort(phba, ndlp);
5908 /* ReStart discovery */
5912 /* Check for wait for NameServer Rsp timeout */
5913 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5914 "0224 NameServer Query timeout "
5916 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5918 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
5919 /* Try it one more time */
5920 vport->fc_ns_retry++;
5921 vport->gidft_inp = 0;
5922 rc = lpfc_issue_gidft(vport);
5926 vport->fc_ns_retry = 0;
5930 * Discovery is over.
5931 * set port_state to PORT_READY if SLI2.
5932 * cmpl_reg_vpi will set port_state to READY for SLI3.
5934 if (phba->sli_rev < LPFC_SLI_REV4) {
5935 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5936 lpfc_issue_reg_vpi(phba, vport);
5938 lpfc_issue_clear_la(phba, vport);
5939 vport->port_state = LPFC_VPORT_READY;
5943 /* Setup and issue mailbox INITIALIZE LINK command */
5944 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5945 if (!initlinkmbox) {
5946 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5947 "0206 Device Discovery "
5948 "completion error\n");
5949 phba->link_state = LPFC_HBA_ERROR;
5953 lpfc_linkdown(phba);
5954 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
5955 phba->cfg_link_speed);
5956 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
5957 initlinkmbox->vport = vport;
5958 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5959 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
5960 lpfc_set_loopback_flag(phba);
5961 if (rc == MBX_NOT_FINISHED)
5962 mempool_free(initlinkmbox, phba->mbox_mem_pool);
5966 case LPFC_DISC_AUTH:
5967 /* Node Authentication timeout */
5968 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5969 "0227 Node Authentication timeout\n");
5970 lpfc_disc_flush_list(vport);
5973 * set port_state to PORT_READY if SLI2.
5974 * cmpl_reg_vpi will set port_state to READY for SLI3.
5976 if (phba->sli_rev < LPFC_SLI_REV4) {
5977 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5978 lpfc_issue_reg_vpi(phba, vport);
5979 else { /* NPIV Not enabled */
5980 lpfc_issue_clear_la(phba, vport);
5981 vport->port_state = LPFC_VPORT_READY;
5986 case LPFC_VPORT_READY:
5987 if (vport->fc_flag & FC_RSCN_MODE) {
5988 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5989 "0231 RSCN timeout Data: x%x "
5991 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5993 /* Cleanup any outstanding ELS commands */
5994 lpfc_els_flush_cmd(vport);
5996 lpfc_els_flush_rscn(vport);
5997 lpfc_disc_flush_list(vport);
6002 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
6003 "0273 Unexpected discovery timeout, "
6004 "vport State x%x\n", vport->port_state);
6008 switch (phba->link_state) {
6010 /* CLEAR LA timeout */
6011 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
6012 "0228 CLEAR LA timeout\n");
6017 lpfc_issue_clear_la(phba, vport);
6019 case LPFC_LINK_UNKNOWN:
6020 case LPFC_WARM_START:
6021 case LPFC_INIT_START:
6022 case LPFC_INIT_MBX_CMDS:
6023 case LPFC_LINK_DOWN:
6024 case LPFC_HBA_ERROR:
6025 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
6026 "0230 Unexpected timeout, hba link "
6027 "state x%x\n", phba->link_state);
6031 case LPFC_HBA_READY:
6036 lpfc_disc_flush_list(vport);
6037 if (phba->sli_rev != LPFC_SLI_REV4) {
6038 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &=
6039 ~LPFC_STOP_IOCB_EVENT;
6040 psli->sli3_ring[LPFC_FCP_RING].flag &=
6041 ~LPFC_STOP_IOCB_EVENT;
6043 vport->port_state = LPFC_VPORT_READY;
6049 * This routine handles processing a NameServer REG_LOGIN mailbox
6050 * command upon completion. It is setup in the LPFC_MBOXQ
6051 * as the completion routine when the command is
6052 * handed off to the SLI layer.
6055 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6057 MAILBOX_t *mb = &pmb->u.mb;
6058 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
6059 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
6060 struct lpfc_vport *vport = pmb->vport;
6062 pmb->ctx_buf = NULL;
6063 pmb->ctx_ndlp = NULL;
6065 if (phba->sli_rev < LPFC_SLI_REV4)
6066 ndlp->nlp_rpi = mb->un.varWords[0];
6067 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
6068 ndlp->nlp_type |= NLP_FABRIC;
6069 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
6070 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,
6071 "0004 rpi:%x DID:%x flg:%x %d map:%x x%px\n",
6072 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
6073 kref_read(&ndlp->kref),
6074 ndlp->nlp_usg_map, ndlp);
6076 * Start issuing Fabric-Device Management Interface (FDMI) command to
6077 * 0xfffffa (FDMI well known port).
6078 * DHBA -> DPRT -> RHBA -> RPA (physical port)
6079 * DPRT -> RPRT (vports)
6081 if (vport->port_type == LPFC_PHYSICAL_PORT)
6082 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
6084 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
6087 /* decrement the node reference count held for this callback
6091 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6093 mempool_free(pmb, phba->mbox_mem_pool);
6099 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
6101 uint16_t *rpi = param;
6103 /* check for active node */
6104 if (!NLP_CHK_NODE_ACT(ndlp))
6107 return ndlp->nlp_rpi == *rpi;
6111 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
6113 return memcmp(&ndlp->nlp_portname, param,
6114 sizeof(ndlp->nlp_portname)) == 0;
6117 static struct lpfc_nodelist *
6118 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
6120 struct lpfc_nodelist *ndlp;
6122 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
6123 if (filter(ndlp, param)) {
6124 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
6125 "3185 FIND node filter %ps DID "
6126 "ndlp x%px did x%x flg x%x st x%x "
6127 "xri x%x type x%x rpi x%x\n",
6128 filter, ndlp, ndlp->nlp_DID,
6129 ndlp->nlp_flag, ndlp->nlp_state,
6130 ndlp->nlp_xri, ndlp->nlp_type,
6135 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
6136 "3186 FIND node filter %ps NOT FOUND.\n", filter);
6141 * This routine looks up the ndlp lists for the given RPI. If rpi found it
6142 * returns the node list element pointer else return NULL.
6144 struct lpfc_nodelist *
6145 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
6147 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
6151 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
6152 * returns the node element list pointer else return NULL.
6154 struct lpfc_nodelist *
6155 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
6157 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6158 struct lpfc_nodelist *ndlp;
6160 spin_lock_irq(shost->host_lock);
6161 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
6162 spin_unlock_irq(shost->host_lock);
6167 * This routine looks up the ndlp lists for the given RPI. If the rpi
6168 * is found, the routine returns the node element list pointer else
6171 struct lpfc_nodelist *
6172 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
6174 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6175 struct lpfc_nodelist *ndlp;
6176 unsigned long flags;
6178 spin_lock_irqsave(shost->host_lock, flags);
6179 ndlp = __lpfc_findnode_rpi(vport, rpi);
6180 spin_unlock_irqrestore(shost->host_lock, flags);
6185 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
6186 * @phba: pointer to lpfc hba data structure.
6187 * @vpi: the physical host virtual N_Port identifier.
6189 * This routine finds a vport on a HBA (referred by @phba) through a
6190 * @vpi. The function walks the HBA's vport list and returns the address
6191 * of the vport with the matching @vpi.
6194 * NULL - No vport with the matching @vpi found
6195 * Otherwise - Address to the vport with the matching @vpi.
6198 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
6200 struct lpfc_vport *vport;
6201 unsigned long flags;
6204 /* The physical ports are always vpi 0 - translate is unnecessary. */
6207 * Translate the physical vpi to the logical vpi. The
6208 * vport stores the logical vpi.
6210 for (i = 0; i < phba->max_vpi; i++) {
6211 if (vpi == phba->vpi_ids[i])
6215 if (i >= phba->max_vpi) {
6216 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
6217 "2936 Could not find Vport mapped "
6218 "to vpi %d\n", vpi);
6223 spin_lock_irqsave(&phba->port_list_lock, flags);
6224 list_for_each_entry(vport, &phba->port_list, listentry) {
6225 if (vport->vpi == i) {
6226 spin_unlock_irqrestore(&phba->port_list_lock, flags);
6230 spin_unlock_irqrestore(&phba->port_list_lock, flags);
6234 struct lpfc_nodelist *
6235 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did)
6237 struct lpfc_nodelist *ndlp;
6238 int rpi = LPFC_RPI_ALLOC_ERROR;
6240 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
6241 rpi = lpfc_sli4_alloc_rpi(vport->phba);
6242 if (rpi == LPFC_RPI_ALLOC_ERROR)
6246 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
6248 if (vport->phba->sli_rev == LPFC_SLI_REV4)
6249 lpfc_sli4_free_rpi(vport->phba, rpi);
6253 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
6255 lpfc_initialize_node(vport, ndlp, did);
6256 INIT_LIST_HEAD(&ndlp->nlp_listp);
6257 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
6258 ndlp->nlp_rpi = rpi;
6259 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,
6260 "0007 Init New ndlp x%px, rpi:x%x DID:%x "
6261 "flg:x%x refcnt:%d map:x%x\n",
6262 ndlp, ndlp->nlp_rpi, ndlp->nlp_DID,
6263 ndlp->nlp_flag, kref_read(&ndlp->kref),
6266 ndlp->active_rrqs_xri_bitmap =
6267 mempool_alloc(vport->phba->active_rrq_pool,
6269 if (ndlp->active_rrqs_xri_bitmap)
6270 memset(ndlp->active_rrqs_xri_bitmap, 0,
6271 ndlp->phba->cfg_rrq_xri_bitmap_sz);
6276 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
6277 "node init: did:x%x",
6278 ndlp->nlp_DID, 0, 0);
6283 /* This routine releases all resources associated with a specifc NPort's ndlp
6284 * and mempool_free's the nodelist.
6287 lpfc_nlp_release(struct kref *kref)
6289 struct lpfc_hba *phba;
6290 unsigned long flags;
6291 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
6294 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6295 "node release: did:x%x flg:x%x type:x%x",
6296 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
6298 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
6299 "0279 %s: ndlp:x%px did %x "
6300 "usgmap:x%x refcnt:%d rpi:%x\n",
6302 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map,
6303 kref_read(&ndlp->kref), ndlp->nlp_rpi);
6305 /* remove ndlp from action. */
6306 lpfc_nlp_remove(ndlp->vport, ndlp);
6308 /* clear the ndlp active flag for all release cases */
6310 spin_lock_irqsave(&phba->ndlp_lock, flags);
6311 NLP_CLR_NODE_ACT(ndlp);
6312 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6314 /* free ndlp memory for final ndlp release */
6315 if (NLP_CHK_FREE_REQ(ndlp)) {
6316 kfree(ndlp->lat_data);
6317 if (phba->sli_rev == LPFC_SLI_REV4)
6318 mempool_free(ndlp->active_rrqs_xri_bitmap,
6319 ndlp->phba->active_rrq_pool);
6320 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
6324 /* This routine bumps the reference count for a ndlp structure to ensure
6325 * that one discovery thread won't free a ndlp while another discovery thread
6328 struct lpfc_nodelist *
6329 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
6331 struct lpfc_hba *phba;
6332 unsigned long flags;
6335 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6336 "node get: did:x%x flg:x%x refcnt:x%x",
6337 ndlp->nlp_DID, ndlp->nlp_flag,
6338 kref_read(&ndlp->kref));
6339 /* The check of ndlp usage to prevent incrementing the
6340 * ndlp reference count that is in the process of being
6344 spin_lock_irqsave(&phba->ndlp_lock, flags);
6345 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
6346 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6347 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6348 "0276 %s: ndlp:x%px "
6349 "usgmap:x%x refcnt:%d\n",
6350 __func__, (void *)ndlp, ndlp->nlp_usg_map,
6351 kref_read(&ndlp->kref));
6354 kref_get(&ndlp->kref);
6355 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6360 /* This routine decrements the reference count for a ndlp structure. If the
6361 * count goes to 0, this indicates the the associated nodelist should be
6362 * freed. Returning 1 indicates the ndlp resource has been released; on the
6363 * other hand, returning 0 indicates the ndlp resource has not been released
6367 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
6369 struct lpfc_hba *phba;
6370 unsigned long flags;
6375 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6376 "node put: did:x%x flg:x%x refcnt:x%x",
6377 ndlp->nlp_DID, ndlp->nlp_flag,
6378 kref_read(&ndlp->kref));
6380 spin_lock_irqsave(&phba->ndlp_lock, flags);
6381 /* Check the ndlp memory free acknowledge flag to avoid the
6382 * possible race condition that kref_put got invoked again
6383 * after previous one has done ndlp memory free.
6385 if (NLP_CHK_FREE_ACK(ndlp)) {
6386 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6387 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6388 "0274 %s: ndlp:x%px "
6389 "usgmap:x%x refcnt:%d\n",
6390 __func__, (void *)ndlp, ndlp->nlp_usg_map,
6391 kref_read(&ndlp->kref));
6394 /* Check the ndlp inactivate log flag to avoid the possible
6395 * race condition that kref_put got invoked again after ndlp
6396 * is already in inactivating state.
6398 if (NLP_CHK_IACT_REQ(ndlp)) {
6399 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6400 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6401 "0275 %s: ndlp:x%px "
6402 "usgmap:x%x refcnt:%d\n",
6403 __func__, (void *)ndlp, ndlp->nlp_usg_map,
6404 kref_read(&ndlp->kref));
6407 /* For last put, mark the ndlp usage flags to make sure no
6408 * other kref_get and kref_put on the same ndlp shall get
6409 * in between the process when the final kref_put has been
6410 * invoked on this ndlp.
6412 if (kref_read(&ndlp->kref) == 1) {
6413 /* Indicate ndlp is put to inactive state. */
6414 NLP_SET_IACT_REQ(ndlp);
6415 /* Acknowledge ndlp memory free has been seen. */
6416 if (NLP_CHK_FREE_REQ(ndlp))
6417 NLP_SET_FREE_ACK(ndlp);
6419 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6420 /* Note, the kref_put returns 1 when decrementing a reference
6421 * count that was 1, it invokes the release callback function,
6422 * but it still left the reference count as 1 (not actually
6423 * performs the last decrementation). Otherwise, it actually
6424 * decrements the reference count and returns 0.
6426 return kref_put(&ndlp->kref, lpfc_nlp_release);
6429 /* This routine free's the specified nodelist if it is not in use
6430 * by any other discovery thread. This routine returns 1 if the
6431 * ndlp has been freed. A return value of 0 indicates the ndlp is
6432 * not yet been released.
6435 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
6437 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6438 "node not used: did:x%x flg:x%x refcnt:x%x",
6439 ndlp->nlp_DID, ndlp->nlp_flag,
6440 kref_read(&ndlp->kref));
6441 if (kref_read(&ndlp->kref) == 1)
6442 if (lpfc_nlp_put(ndlp))
6448 * lpfc_fcf_inuse - Check if FCF can be unregistered.
6449 * @phba: Pointer to hba context object.
6451 * This function iterate through all FC nodes associated
6452 * will all vports to check if there is any node with
6453 * fc_rports associated with it. If there is an fc_rport
6454 * associated with the node, then the node is either in
6455 * discovered state or its devloss_timer is pending.
6458 lpfc_fcf_inuse(struct lpfc_hba *phba)
6460 struct lpfc_vport **vports;
6462 struct lpfc_nodelist *ndlp;
6463 struct Scsi_Host *shost;
6465 vports = lpfc_create_vport_work_array(phba);
6467 /* If driver cannot allocate memory, indicate fcf is in use */
6471 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6472 shost = lpfc_shost_from_vport(vports[i]);
6473 spin_lock_irq(shost->host_lock);
6475 * IF the CVL_RCVD bit is not set then we have sent the
6477 * If dev_loss fires while we are waiting we do not want to
6480 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
6481 spin_unlock_irq(shost->host_lock);
6485 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
6486 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
6487 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
6489 spin_unlock_irq(shost->host_lock);
6491 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
6493 lpfc_printf_log(phba, KERN_INFO,
6494 LOG_NODE | LOG_DISCOVERY,
6495 "2624 RPI %x DID %x flag %x "
6496 "still logged in\n",
6497 ndlp->nlp_rpi, ndlp->nlp_DID,
6501 spin_unlock_irq(shost->host_lock);
6504 lpfc_destroy_vport_work_array(phba, vports);
6509 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
6510 * @phba: Pointer to hba context object.
6511 * @mboxq: Pointer to mailbox object.
6513 * This function frees memory associated with the mailbox command.
6516 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6518 struct lpfc_vport *vport = mboxq->vport;
6519 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6521 if (mboxq->u.mb.mbxStatus) {
6522 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6523 "2555 UNREG_VFI mbxStatus error x%x "
6525 mboxq->u.mb.mbxStatus, vport->port_state);
6527 spin_lock_irq(shost->host_lock);
6528 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
6529 spin_unlock_irq(shost->host_lock);
6530 mempool_free(mboxq, phba->mbox_mem_pool);
6535 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
6536 * @phba: Pointer to hba context object.
6537 * @mboxq: Pointer to mailbox object.
6539 * This function frees memory associated with the mailbox command.
6542 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6544 struct lpfc_vport *vport = mboxq->vport;
6546 if (mboxq->u.mb.mbxStatus) {
6547 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6548 "2550 UNREG_FCFI mbxStatus error x%x "
6550 mboxq->u.mb.mbxStatus, vport->port_state);
6552 mempool_free(mboxq, phba->mbox_mem_pool);
6557 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
6558 * @phba: Pointer to hba context object.
6560 * This function prepare the HBA for unregistering the currently registered
6561 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
6565 lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
6567 struct lpfc_vport **vports;
6568 struct lpfc_nodelist *ndlp;
6569 struct Scsi_Host *shost;
6572 /* Unregister RPIs */
6573 if (lpfc_fcf_inuse(phba))
6574 lpfc_unreg_hba_rpis(phba);
6576 /* At this point, all discovery is aborted */
6577 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
6579 /* Unregister VPIs */
6580 vports = lpfc_create_vport_work_array(phba);
6581 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
6582 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6583 /* Stop FLOGI/FDISC retries */
6584 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
6586 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
6587 lpfc_cleanup_pending_mbox(vports[i]);
6588 if (phba->sli_rev == LPFC_SLI_REV4)
6589 lpfc_sli4_unreg_all_rpis(vports[i]);
6590 lpfc_mbx_unreg_vpi(vports[i]);
6591 shost = lpfc_shost_from_vport(vports[i]);
6592 spin_lock_irq(shost->host_lock);
6593 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6594 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
6595 spin_unlock_irq(shost->host_lock);
6597 lpfc_destroy_vport_work_array(phba, vports);
6598 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) {
6599 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
6601 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
6602 lpfc_cleanup_pending_mbox(phba->pport);
6603 if (phba->sli_rev == LPFC_SLI_REV4)
6604 lpfc_sli4_unreg_all_rpis(phba->pport);
6605 lpfc_mbx_unreg_vpi(phba->pport);
6606 shost = lpfc_shost_from_vport(phba->pport);
6607 spin_lock_irq(shost->host_lock);
6608 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6609 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED;
6610 spin_unlock_irq(shost->host_lock);
6613 /* Cleanup any outstanding ELS commands */
6614 lpfc_els_flush_all_cmd(phba);
6616 /* Unregister the physical port VFI */
6617 rc = lpfc_issue_unreg_vfi(phba->pport);
6622 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
6623 * @phba: Pointer to hba context object.
6625 * This function issues synchronous unregister FCF mailbox command to HBA to
6626 * unregister the currently registered FCF record. The driver does not reset
6627 * the driver FCF usage state flags.
6629 * Return 0 if successfully issued, none-zero otherwise.
6632 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
6637 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6639 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6640 "2551 UNREG_FCFI mbox allocation failed"
6641 "HBA state x%x\n", phba->pport->port_state);
6644 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
6645 mbox->vport = phba->pport;
6646 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
6647 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6649 if (rc == MBX_NOT_FINISHED) {
6650 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6651 "2552 Unregister FCFI command failed rc x%x "
6653 rc, phba->pport->port_state);
6660 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
6661 * @phba: Pointer to hba context object.
6663 * This function unregisters the currently reigstered FCF. This function
6664 * also tries to find another FCF for discovery by rescan the HBA FCF table.
6667 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
6671 /* Preparation for unregistering fcf */
6672 rc = lpfc_unregister_fcf_prep(phba);
6674 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6675 "2748 Failed to prepare for unregistering "
6676 "HBA's FCF record: rc=%d\n", rc);
6680 /* Now, unregister FCF record and reset HBA FCF state */
6681 rc = lpfc_sli4_unregister_fcf(phba);
6684 /* Reset HBA FCF states after successful unregister FCF */
6685 phba->fcf.fcf_flag = 0;
6686 phba->fcf.current_rec.flag = 0;
6689 * If driver is not unloading, check if there is any other
6690 * FCF record that can be used for discovery.
6692 if ((phba->pport->load_flag & FC_UNLOADING) ||
6693 (phba->link_state < LPFC_LINK_UP))
6696 /* This is considered as the initial FCF discovery scan */
6697 spin_lock_irq(&phba->hbalock);
6698 phba->fcf.fcf_flag |= FCF_INIT_DISC;
6699 spin_unlock_irq(&phba->hbalock);
6701 /* Reset FCF roundrobin bmask for new discovery */
6702 lpfc_sli4_clear_fcf_rr_bmask(phba);
6704 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6707 spin_lock_irq(&phba->hbalock);
6708 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
6709 spin_unlock_irq(&phba->hbalock);
6710 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6711 "2553 lpfc_unregister_unused_fcf failed "
6712 "to read FCF record HBA state x%x\n",
6713 phba->pport->port_state);
6718 * lpfc_unregister_fcf - Unregister the currently registered fcf record
6719 * @phba: Pointer to hba context object.
6721 * This function just unregisters the currently reigstered FCF. It does not
6722 * try to find another FCF for discovery.
6725 lpfc_unregister_fcf(struct lpfc_hba *phba)
6729 /* Preparation for unregistering fcf */
6730 rc = lpfc_unregister_fcf_prep(phba);
6732 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6733 "2749 Failed to prepare for unregistering "
6734 "HBA's FCF record: rc=%d\n", rc);
6738 /* Now, unregister FCF record and reset HBA FCF state */
6739 rc = lpfc_sli4_unregister_fcf(phba);
6742 /* Set proper HBA FCF states after successful unregister FCF */
6743 spin_lock_irq(&phba->hbalock);
6744 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
6745 spin_unlock_irq(&phba->hbalock);
6749 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
6750 * @phba: Pointer to hba context object.
6752 * This function check if there are any connected remote port for the FCF and
6753 * if all the devices are disconnected, this function unregister FCFI.
6754 * This function also tries to use another FCF for discovery.
6757 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
6760 * If HBA is not running in FIP mode, if HBA does not support
6761 * FCoE, if FCF discovery is ongoing, or if FCF has not been
6762 * registered, do nothing.
6764 spin_lock_irq(&phba->hbalock);
6765 if (!(phba->hba_flag & HBA_FCOE_MODE) ||
6766 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
6767 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
6768 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
6769 (phba->pport->port_state == LPFC_FLOGI)) {
6770 spin_unlock_irq(&phba->hbalock);
6773 spin_unlock_irq(&phba->hbalock);
6775 if (lpfc_fcf_inuse(phba))
6778 lpfc_unregister_fcf_rescan(phba);
6782 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
6783 * @phba: Pointer to hba context object.
6784 * @buff: Buffer containing the FCF connection table as in the config
6786 * This function create driver data structure for the FCF connection
6787 * record table read from config region 23.
6790 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
6793 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6794 struct lpfc_fcf_conn_hdr *conn_hdr;
6795 struct lpfc_fcf_conn_rec *conn_rec;
6796 uint32_t record_count;
6799 /* Free the current connect table */
6800 list_for_each_entry_safe(conn_entry, next_conn_entry,
6801 &phba->fcf_conn_rec_list, list) {
6802 list_del_init(&conn_entry->list);
6806 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
6807 record_count = conn_hdr->length * sizeof(uint32_t)/
6808 sizeof(struct lpfc_fcf_conn_rec);
6810 conn_rec = (struct lpfc_fcf_conn_rec *)
6811 (buff + sizeof(struct lpfc_fcf_conn_hdr));
6813 for (i = 0; i < record_count; i++) {
6814 if (!(conn_rec[i].flags & FCFCNCT_VALID))
6816 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
6819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6820 "2566 Failed to allocate connection"
6825 memcpy(&conn_entry->conn_rec, &conn_rec[i],
6826 sizeof(struct lpfc_fcf_conn_rec));
6827 list_add_tail(&conn_entry->list,
6828 &phba->fcf_conn_rec_list);
6831 if (!list_empty(&phba->fcf_conn_rec_list)) {
6833 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list,
6835 conn_rec = &conn_entry->conn_rec;
6836 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6837 "3345 FCF connection list rec[%02d]: "
6838 "flags:x%04x, vtag:x%04x, "
6839 "fabric_name:x%02x:%02x:%02x:%02x:"
6840 "%02x:%02x:%02x:%02x, "
6841 "switch_name:x%02x:%02x:%02x:%02x:"
6842 "%02x:%02x:%02x:%02x\n", i++,
6843 conn_rec->flags, conn_rec->vlan_tag,
6844 conn_rec->fabric_name[0],
6845 conn_rec->fabric_name[1],
6846 conn_rec->fabric_name[2],
6847 conn_rec->fabric_name[3],
6848 conn_rec->fabric_name[4],
6849 conn_rec->fabric_name[5],
6850 conn_rec->fabric_name[6],
6851 conn_rec->fabric_name[7],
6852 conn_rec->switch_name[0],
6853 conn_rec->switch_name[1],
6854 conn_rec->switch_name[2],
6855 conn_rec->switch_name[3],
6856 conn_rec->switch_name[4],
6857 conn_rec->switch_name[5],
6858 conn_rec->switch_name[6],
6859 conn_rec->switch_name[7]);
6865 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6866 * @phba: Pointer to hba context object.
6867 * @buff: Buffer containing the FCoE parameter data structure.
6869 * This function update driver data structure with config
6870 * parameters read from config region 23.
6873 lpfc_read_fcoe_param(struct lpfc_hba *phba,
6876 struct lpfc_fip_param_hdr *fcoe_param_hdr;
6877 struct lpfc_fcoe_params *fcoe_param;
6879 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
6881 fcoe_param = (struct lpfc_fcoe_params *)
6882 (buff + sizeof(struct lpfc_fip_param_hdr));
6884 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
6885 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
6888 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
6889 phba->valid_vlan = 1;
6890 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
6894 phba->fc_map[0] = fcoe_param->fc_map[0];
6895 phba->fc_map[1] = fcoe_param->fc_map[1];
6896 phba->fc_map[2] = fcoe_param->fc_map[2];
6901 * lpfc_get_rec_conf23 - Get a record type in config region data.
6902 * @buff: Buffer containing config region 23 data.
6903 * @size: Size of the data buffer.
6904 * @rec_type: Record type to be searched.
6906 * This function searches config region data to find the beginning
6907 * of the record specified by record_type. If record found, this
6908 * function return pointer to the record else return NULL.
6911 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
6913 uint32_t offset = 0, rec_length;
6915 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
6916 (size < sizeof(uint32_t)))
6919 rec_length = buff[offset + 1];
6922 * One TLV record has one word header and number of data words
6923 * specified in the rec_length field of the record header.
6925 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
6927 if (buff[offset] == rec_type)
6928 return &buff[offset];
6930 if (buff[offset] == LPFC_REGION23_LAST_REC)
6933 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
6934 rec_length = buff[offset + 1];
6940 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6941 * @phba: Pointer to lpfc_hba data structure.
6942 * @buff: Buffer containing config region 23 data.
6943 * @size: Size of the data buffer.
6945 * This function parses the FCoE config parameters in config region 23 and
6946 * populate driver data structure with the parameters.
6949 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
6953 uint32_t offset = 0;
6957 * If data size is less than 2 words signature and version cannot be
6960 if (size < 2*sizeof(uint32_t))
6963 /* Check the region signature first */
6964 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
6965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6966 "2567 Config region 23 has bad signature\n");
6972 /* Check the data structure version */
6973 if (buff[offset] != LPFC_REGION23_VERSION) {
6974 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6975 "2568 Config region 23 has bad version\n");
6980 /* Read FCoE param record */
6981 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6982 size - offset, FCOE_PARAM_TYPE);
6984 lpfc_read_fcoe_param(phba, rec_ptr);
6986 /* Read FCF connection table */
6987 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6988 size - offset, FCOE_CONN_TBL_TYPE);
6990 lpfc_read_fcf_conn_tbl(phba, rec_ptr);