1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2015 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/slab.h>
25 #include <linux/pci.h>
26 #include <linux/kthread.h>
27 #include <linux/interrupt.h>
29 #include <scsi/scsi.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
37 #include "lpfc_disc.h"
39 #include "lpfc_sli4.h"
40 #include "lpfc_scsi.h"
42 #include "lpfc_logmsg.h"
43 #include "lpfc_crtn.h"
44 #include "lpfc_vport.h"
45 #include "lpfc_debugfs.h"
47 /* AlpaArray for assignment of scsid for scan-down and bind_method */
48 static uint8_t lpfcAlpaArray[] = {
49 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
50 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
51 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
52 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
53 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
54 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
55 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
56 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
57 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
58 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
59 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
60 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
61 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
64 static void lpfc_disc_timeout_handler(struct lpfc_vport *);
65 static void lpfc_disc_flush_list(struct lpfc_vport *vport);
66 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
67 static int lpfc_fcf_inuse(struct lpfc_hba *);
70 lpfc_terminate_rport_io(struct fc_rport *rport)
72 struct lpfc_rport_data *rdata;
73 struct lpfc_nodelist * ndlp;
74 struct lpfc_hba *phba;
76 rdata = rport->dd_data;
79 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
80 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
81 printk(KERN_ERR "Cannot find remote node"
82 " to terminate I/O Data x%x\n",
89 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
90 "rport terminate: sid:x%x did:x%x flg:x%x",
91 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
93 if (ndlp->nlp_sid != NLP_NO_SID) {
94 lpfc_sli_abort_iocb(ndlp->vport,
95 &phba->sli.ring[phba->sli.fcp_ring],
96 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
101 * This function will be called when dev_loss_tmo fire.
104 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
106 struct lpfc_rport_data *rdata;
107 struct lpfc_nodelist * ndlp;
108 struct lpfc_vport *vport;
109 struct Scsi_Host *shost;
110 struct lpfc_hba *phba;
111 struct lpfc_work_evt *evtp;
115 rdata = rport->dd_data;
117 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
123 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
124 "rport devlosscb: sid:x%x did:x%x flg:x%x",
125 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
127 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
128 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n",
129 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
131 /* Don't defer this if we are in the process of deleting the vport
132 * or unloading the driver. The unload will cleanup the node
133 * appropriately we just need to cleanup the ndlp rport info here.
135 if (vport->load_flag & FC_UNLOADING) {
136 put_node = rdata->pnode != NULL;
137 put_rport = ndlp->rport != NULL;
143 put_device(&rport->dev);
147 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
150 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn))
151 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
152 "6789 rport name %llx != node port name %llx",
154 wwn_to_u64(ndlp->nlp_portname.u.wwn));
156 evtp = &ndlp->dev_loss_evt;
158 if (!list_empty(&evtp->evt_listp)) {
159 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
160 "6790 rport name %llx dev_loss_evt pending",
165 shost = lpfc_shost_from_vport(vport);
166 spin_lock_irq(shost->host_lock);
167 ndlp->nlp_flag |= NLP_IN_DEV_LOSS;
168 spin_unlock_irq(shost->host_lock);
170 /* We need to hold the node by incrementing the reference
171 * count until this queued work is done
173 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
175 spin_lock_irq(&phba->hbalock);
176 if (evtp->evt_arg1) {
177 evtp->evt = LPFC_EVT_DEV_LOSS;
178 list_add_tail(&evtp->evt_listp, &phba->work_list);
179 lpfc_worker_wake_up(phba);
181 spin_unlock_irq(&phba->hbalock);
187 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
188 * @ndlp: Pointer to remote node object.
190 * This function is called from the worker thread when devloss timeout timer
191 * expires. For SLI4 host, this routine shall return 1 when at lease one
192 * remote node, including this @ndlp, is still in use of FCF; otherwise, this
193 * routine shall return 0 when there is no remote node is still in use of FCF
194 * when devloss timeout happened to this @ndlp.
197 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
199 struct lpfc_rport_data *rdata;
200 struct fc_rport *rport;
201 struct lpfc_vport *vport;
202 struct lpfc_hba *phba;
203 struct Scsi_Host *shost;
211 shost = lpfc_shost_from_vport(vport);
213 spin_lock_irq(shost->host_lock);
214 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
215 spin_unlock_irq(shost->host_lock);
220 name = (uint8_t *) &ndlp->nlp_portname;
223 if (phba->sli_rev == LPFC_SLI_REV4)
224 fcf_inuse = lpfc_fcf_inuse(phba);
226 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
227 "rport devlosstmo:did:x%x type:x%x id:x%x",
228 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
230 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
231 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n",
232 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
235 * lpfc_nlp_remove if reached with dangling rport drops the
236 * reference. To make sure that does not happen clear rport
237 * pointer in ndlp before lpfc_nlp_put.
239 rdata = rport->dd_data;
241 /* Don't defer this if we are in the process of deleting the vport
242 * or unloading the driver. The unload will cleanup the node
243 * appropriately we just need to cleanup the ndlp rport info here.
245 if (vport->load_flag & FC_UNLOADING) {
246 if (ndlp->nlp_sid != NLP_NO_SID) {
247 /* flush the target */
248 lpfc_sli_abort_iocb(vport,
249 &phba->sli.ring[phba->sli.fcp_ring],
250 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
252 put_node = rdata->pnode != NULL;
257 put_device(&rport->dev);
262 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
263 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
264 "0284 Devloss timeout Ignored on "
265 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
267 *name, *(name+1), *(name+2), *(name+3),
268 *(name+4), *(name+5), *(name+6), *(name+7),
273 put_node = rdata->pnode != NULL;
278 put_device(&rport->dev);
280 if (ndlp->nlp_type & NLP_FABRIC)
283 if (ndlp->nlp_sid != NLP_NO_SID) {
285 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
286 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
290 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
291 "0203 Devloss timeout on "
292 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
293 "NPort x%06x Data: x%x x%x x%x\n",
294 *name, *(name+1), *(name+2), *(name+3),
295 *(name+4), *(name+5), *(name+6), *(name+7),
296 ndlp->nlp_DID, ndlp->nlp_flag,
297 ndlp->nlp_state, ndlp->nlp_rpi);
299 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
300 "0204 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);
309 if (!(vport->load_flag & FC_UNLOADING) &&
310 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
311 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
312 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
313 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) &&
314 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE))
315 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
321 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
322 * @phba: Pointer to hba context object.
323 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
324 * @nlp_did: remote node identifer with devloss timeout.
326 * This function is called from the worker thread after invoking devloss
327 * timeout handler and releasing the reference count for the ndlp with
328 * which the devloss timeout was handled for SLI4 host. For the devloss
329 * timeout of the last remote node which had been in use of FCF, when this
330 * routine is invoked, it shall be guaranteed that none of the remote are
331 * in-use of FCF. When devloss timeout to the last remote using the FCF,
332 * if the FIP engine is neither in FCF table scan process nor roundrobin
333 * failover process, the in-use FCF shall be unregistered. If the FIP
334 * engine is in FCF discovery process, the devloss timeout state shall
335 * be set for either the FCF table scan process or roundrobin failover
336 * process to unregister the in-use FCF.
339 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
342 /* If devloss timeout happened to a remote node when FCF had no
343 * longer been in-use, do nothing.
348 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
349 spin_lock_irq(&phba->hbalock);
350 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
351 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
352 spin_unlock_irq(&phba->hbalock);
355 phba->hba_flag |= HBA_DEVLOSS_TMO;
356 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
357 "2847 Last remote node (x%x) using "
358 "FCF devloss tmo\n", nlp_did);
360 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
361 spin_unlock_irq(&phba->hbalock);
362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
363 "2868 Devloss tmo to FCF rediscovery "
367 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
368 spin_unlock_irq(&phba->hbalock);
369 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
370 "2869 Devloss tmo to idle FIP engine, "
371 "unreg in-use FCF and rescan.\n");
372 /* Unregister in-use FCF and rescan */
373 lpfc_unregister_fcf_rescan(phba);
376 spin_unlock_irq(&phba->hbalock);
377 if (phba->hba_flag & FCF_TS_INPROG)
378 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
379 "2870 FCF table scan in progress\n");
380 if (phba->hba_flag & FCF_RR_INPROG)
381 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
382 "2871 FLOGI roundrobin FCF failover "
385 lpfc_unregister_unused_fcf(phba);
389 * lpfc_alloc_fast_evt - Allocates data structure for posting event
390 * @phba: Pointer to hba context object.
392 * This function is called from the functions which need to post
393 * events from interrupt context. This function allocates data
394 * structure required for posting event. It also keeps track of
395 * number of events pending and prevent event storm when there are
398 struct lpfc_fast_path_event *
399 lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
400 struct lpfc_fast_path_event *ret;
402 /* If there are lot of fast event do not exhaust memory due to this */
403 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
406 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
409 atomic_inc(&phba->fast_event_count);
410 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
411 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
417 * lpfc_free_fast_evt - Frees event data structure
418 * @phba: Pointer to hba context object.
419 * @evt: Event object which need to be freed.
421 * This function frees the data structure required for posting
425 lpfc_free_fast_evt(struct lpfc_hba *phba,
426 struct lpfc_fast_path_event *evt) {
428 atomic_dec(&phba->fast_event_count);
433 * lpfc_send_fastpath_evt - Posts events generated from fast path
434 * @phba: Pointer to hba context object.
435 * @evtp: Event data structure.
437 * This function is called from worker thread, when the interrupt
438 * context need to post an event. This function posts the event
439 * to fc transport netlink interface.
442 lpfc_send_fastpath_evt(struct lpfc_hba *phba,
443 struct lpfc_work_evt *evtp)
445 unsigned long evt_category, evt_sub_category;
446 struct lpfc_fast_path_event *fast_evt_data;
448 uint32_t evt_data_size;
449 struct Scsi_Host *shost;
451 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
454 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
455 evt_sub_category = (unsigned long) fast_evt_data->un.
456 fabric_evt.subcategory;
457 shost = lpfc_shost_from_vport(fast_evt_data->vport);
458 if (evt_category == FC_REG_FABRIC_EVENT) {
459 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
460 evt_data = (char *) &fast_evt_data->un.read_check_error;
461 evt_data_size = sizeof(fast_evt_data->un.
463 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
464 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
465 evt_data = (char *) &fast_evt_data->un.fabric_evt;
466 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
468 lpfc_free_fast_evt(phba, fast_evt_data);
471 } else if (evt_category == FC_REG_SCSI_EVENT) {
472 switch (evt_sub_category) {
473 case LPFC_EVENT_QFULL:
474 case LPFC_EVENT_DEVBSY:
475 evt_data = (char *) &fast_evt_data->un.scsi_evt;
476 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
478 case LPFC_EVENT_CHECK_COND:
479 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
480 evt_data_size = sizeof(fast_evt_data->un.
483 case LPFC_EVENT_VARQUEDEPTH:
484 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
485 evt_data_size = sizeof(fast_evt_data->un.
489 lpfc_free_fast_evt(phba, fast_evt_data);
493 lpfc_free_fast_evt(phba, fast_evt_data);
497 fc_host_post_vendor_event(shost,
498 fc_get_event_number(),
503 lpfc_free_fast_evt(phba, fast_evt_data);
508 lpfc_work_list_done(struct lpfc_hba *phba)
510 struct lpfc_work_evt *evtp = NULL;
511 struct lpfc_nodelist *ndlp;
516 spin_lock_irq(&phba->hbalock);
517 while (!list_empty(&phba->work_list)) {
518 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
520 spin_unlock_irq(&phba->hbalock);
523 case LPFC_EVT_ELS_RETRY:
524 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
525 lpfc_els_retry_delay_handler(ndlp);
526 free_evt = 0; /* evt is part of ndlp */
527 /* decrement the node reference count held
528 * for this queued work
532 case LPFC_EVT_DEV_LOSS:
533 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
534 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
536 /* decrement the node reference count held for
539 nlp_did = ndlp->nlp_DID;
541 if (phba->sli_rev == LPFC_SLI_REV4)
542 lpfc_sli4_post_dev_loss_tmo_handler(phba,
546 case LPFC_EVT_ONLINE:
547 if (phba->link_state < LPFC_LINK_DOWN)
548 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
550 *(int *) (evtp->evt_arg1) = 0;
551 complete((struct completion *)(evtp->evt_arg2));
553 case LPFC_EVT_OFFLINE_PREP:
554 if (phba->link_state >= LPFC_LINK_DOWN)
555 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
556 *(int *)(evtp->evt_arg1) = 0;
557 complete((struct completion *)(evtp->evt_arg2));
559 case LPFC_EVT_OFFLINE:
561 lpfc_sli_brdrestart(phba);
562 *(int *)(evtp->evt_arg1) =
563 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
564 lpfc_unblock_mgmt_io(phba);
565 complete((struct completion *)(evtp->evt_arg2));
567 case LPFC_EVT_WARM_START:
569 lpfc_reset_barrier(phba);
570 lpfc_sli_brdreset(phba);
571 lpfc_hba_down_post(phba);
572 *(int *)(evtp->evt_arg1) =
573 lpfc_sli_brdready(phba, HS_MBRDY);
574 lpfc_unblock_mgmt_io(phba);
575 complete((struct completion *)(evtp->evt_arg2));
579 *(int *)(evtp->evt_arg1)
580 = (phba->pport->stopped)
581 ? 0 : lpfc_sli_brdkill(phba);
582 lpfc_unblock_mgmt_io(phba);
583 complete((struct completion *)(evtp->evt_arg2));
585 case LPFC_EVT_FASTPATH_MGMT_EVT:
586 lpfc_send_fastpath_evt(phba, evtp);
589 case LPFC_EVT_RESET_HBA:
590 if (!(phba->pport->load_flag & FC_UNLOADING))
591 lpfc_reset_hba(phba);
596 spin_lock_irq(&phba->hbalock);
598 spin_unlock_irq(&phba->hbalock);
603 lpfc_work_done(struct lpfc_hba *phba)
605 struct lpfc_sli_ring *pring;
606 uint32_t ha_copy, status, control, work_port_events;
607 struct lpfc_vport **vports;
608 struct lpfc_vport *vport;
611 spin_lock_irq(&phba->hbalock);
612 ha_copy = phba->work_ha;
614 spin_unlock_irq(&phba->hbalock);
616 /* First, try to post the next mailbox command to SLI4 device */
617 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
618 lpfc_sli4_post_async_mbox(phba);
620 if (ha_copy & HA_ERATT)
621 /* Handle the error attention event */
622 lpfc_handle_eratt(phba);
624 if (ha_copy & HA_MBATT)
625 lpfc_sli_handle_mb_event(phba);
627 if (ha_copy & HA_LATT)
628 lpfc_handle_latt(phba);
630 /* Process SLI4 events */
631 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
632 if (phba->hba_flag & HBA_RRQ_ACTIVE)
633 lpfc_handle_rrq_active(phba);
634 if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
635 lpfc_sli4_fcp_xri_abort_event_proc(phba);
636 if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
637 lpfc_sli4_els_xri_abort_event_proc(phba);
638 if (phba->hba_flag & ASYNC_EVENT)
639 lpfc_sli4_async_event_proc(phba);
640 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
641 spin_lock_irq(&phba->hbalock);
642 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
643 spin_unlock_irq(&phba->hbalock);
644 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
646 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
647 lpfc_sli4_fcf_redisc_event_proc(phba);
650 vports = lpfc_create_vport_work_array(phba);
652 for (i = 0; i <= phba->max_vports; i++) {
654 * We could have no vports in array if unloading, so if
655 * this happens then just use the pport
657 if (vports[i] == NULL && i == 0)
663 spin_lock_irq(&vport->work_port_lock);
664 work_port_events = vport->work_port_events;
665 vport->work_port_events &= ~work_port_events;
666 spin_unlock_irq(&vport->work_port_lock);
667 if (work_port_events & WORKER_DISC_TMO)
668 lpfc_disc_timeout_handler(vport);
669 if (work_port_events & WORKER_ELS_TMO)
670 lpfc_els_timeout_handler(vport);
671 if (work_port_events & WORKER_HB_TMO)
672 lpfc_hb_timeout_handler(phba);
673 if (work_port_events & WORKER_MBOX_TMO)
674 lpfc_mbox_timeout_handler(phba);
675 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
676 lpfc_unblock_fabric_iocbs(phba);
677 if (work_port_events & WORKER_FDMI_TMO)
678 lpfc_fdmi_timeout_handler(vport);
679 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
680 lpfc_ramp_down_queue_handler(phba);
681 if (work_port_events & WORKER_DELAYED_DISC_TMO)
682 lpfc_delayed_disc_timeout_handler(vport);
684 lpfc_destroy_vport_work_array(phba, vports);
686 pring = &phba->sli.ring[LPFC_ELS_RING];
687 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
688 status >>= (4*LPFC_ELS_RING);
689 if ((status & HA_RXMASK) ||
690 (pring->flag & LPFC_DEFERRED_RING_EVENT) ||
691 (phba->hba_flag & HBA_SP_QUEUE_EVT)) {
692 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
693 pring->flag |= LPFC_DEFERRED_RING_EVENT;
694 /* Set the lpfc data pending flag */
695 set_bit(LPFC_DATA_READY, &phba->data_flags);
697 if (phba->link_state >= LPFC_LINK_UP) {
698 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
699 lpfc_sli_handle_slow_ring_event(phba, pring,
704 if ((phba->sli_rev == LPFC_SLI_REV4) &&
705 (!list_empty(&pring->txq)))
706 lpfc_drain_txq(phba);
708 * Turn on Ring interrupts
710 if (phba->sli_rev <= LPFC_SLI_REV3) {
711 spin_lock_irq(&phba->hbalock);
712 control = readl(phba->HCregaddr);
713 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
714 lpfc_debugfs_slow_ring_trc(phba,
715 "WRK Enable ring: cntl:x%x hacopy:x%x",
716 control, ha_copy, 0);
718 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
719 writel(control, phba->HCregaddr);
720 readl(phba->HCregaddr); /* flush */
722 lpfc_debugfs_slow_ring_trc(phba,
723 "WRK Ring ok: cntl:x%x hacopy:x%x",
724 control, ha_copy, 0);
726 spin_unlock_irq(&phba->hbalock);
729 lpfc_work_list_done(phba);
733 lpfc_do_work(void *p)
735 struct lpfc_hba *phba = p;
738 set_user_nice(current, MIN_NICE);
739 current->flags |= PF_NOFREEZE;
740 phba->data_flags = 0;
742 while (!kthread_should_stop()) {
743 /* wait and check worker queue activities */
744 rc = wait_event_interruptible(phba->work_waitq,
745 (test_and_clear_bit(LPFC_DATA_READY,
747 || kthread_should_stop()));
748 /* Signal wakeup shall terminate the worker thread */
750 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
751 "0433 Wakeup on signal: rc=x%x\n", rc);
755 /* Attend pending lpfc data processing */
756 lpfc_work_done(phba);
758 phba->worker_thread = NULL;
759 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
760 "0432 Worker thread stopped.\n");
765 * This is only called to handle FC worker events. Since this a rare
766 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
767 * embedding it in the IOCB.
770 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
773 struct lpfc_work_evt *evtp;
777 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
778 * be queued to worker thread for processing
780 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
784 evtp->evt_arg1 = arg1;
785 evtp->evt_arg2 = arg2;
788 spin_lock_irqsave(&phba->hbalock, flags);
789 list_add_tail(&evtp->evt_listp, &phba->work_list);
790 spin_unlock_irqrestore(&phba->hbalock, flags);
792 lpfc_worker_wake_up(phba);
798 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
800 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
801 struct lpfc_hba *phba = vport->phba;
802 struct lpfc_nodelist *ndlp, *next_ndlp;
804 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
805 if (!NLP_CHK_NODE_ACT(ndlp))
807 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
809 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
810 ((vport->port_type == LPFC_NPIV_PORT) &&
811 (ndlp->nlp_DID == NameServer_DID)))
812 lpfc_unreg_rpi(vport, ndlp);
814 /* Leave Fabric nodes alone on link down */
815 if ((phba->sli_rev < LPFC_SLI_REV4) &&
816 (!remove && ndlp->nlp_type & NLP_FABRIC))
818 lpfc_disc_state_machine(vport, ndlp, NULL,
821 : NLP_EVT_DEVICE_RECOVERY);
823 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
824 if (phba->sli_rev == LPFC_SLI_REV4)
825 lpfc_sli4_unreg_all_rpis(vport);
826 lpfc_mbx_unreg_vpi(vport);
827 spin_lock_irq(shost->host_lock);
828 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
829 spin_unlock_irq(shost->host_lock);
834 lpfc_port_link_failure(struct lpfc_vport *vport)
836 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
838 /* Cleanup any outstanding received buffers */
839 lpfc_cleanup_rcv_buffers(vport);
841 /* Cleanup any outstanding RSCN activity */
842 lpfc_els_flush_rscn(vport);
844 /* Cleanup any outstanding ELS commands */
845 lpfc_els_flush_cmd(vport);
847 lpfc_cleanup_rpis(vport, 0);
849 /* Turn off discovery timer if its running */
850 lpfc_can_disctmo(vport);
854 lpfc_linkdown_port(struct lpfc_vport *vport)
856 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
858 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
860 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
861 "Link Down: state:x%x rtry:x%x flg:x%x",
862 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
864 lpfc_port_link_failure(vport);
866 /* Stop delayed Nport discovery */
867 spin_lock_irq(shost->host_lock);
868 vport->fc_flag &= ~FC_DISC_DELAYED;
869 spin_unlock_irq(shost->host_lock);
870 del_timer_sync(&vport->delayed_disc_tmo);
874 lpfc_linkdown(struct lpfc_hba *phba)
876 struct lpfc_vport *vport = phba->pport;
877 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
878 struct lpfc_vport **vports;
882 if (phba->link_state == LPFC_LINK_DOWN)
885 /* Block all SCSI stack I/Os */
886 lpfc_scsi_dev_block(phba);
888 spin_lock_irq(&phba->hbalock);
889 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
890 spin_unlock_irq(&phba->hbalock);
891 if (phba->link_state > LPFC_LINK_DOWN) {
892 phba->link_state = LPFC_LINK_DOWN;
893 spin_lock_irq(shost->host_lock);
894 phba->pport->fc_flag &= ~FC_LBIT;
895 spin_unlock_irq(shost->host_lock);
897 vports = lpfc_create_vport_work_array(phba);
899 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
900 /* Issue a LINK DOWN event to all nodes */
901 lpfc_linkdown_port(vports[i]);
903 lpfc_destroy_vport_work_array(phba, vports);
904 /* Clean up any firmware default rpi's */
905 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
907 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
909 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
910 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
911 == MBX_NOT_FINISHED) {
912 mempool_free(mb, phba->mbox_mem_pool);
916 /* Setup myDID for link up if we are in pt2pt mode */
917 if (phba->pport->fc_flag & FC_PT2PT) {
918 phba->pport->fc_myDID = 0;
919 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
921 lpfc_config_link(phba, mb);
922 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
924 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
925 == MBX_NOT_FINISHED) {
926 mempool_free(mb, phba->mbox_mem_pool);
929 spin_lock_irq(shost->host_lock);
930 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
931 spin_unlock_irq(shost->host_lock);
938 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
940 struct lpfc_nodelist *ndlp;
942 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
943 if (!NLP_CHK_NODE_ACT(ndlp))
945 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
947 if (ndlp->nlp_type & NLP_FABRIC) {
948 /* On Linkup its safe to clean up the ndlp
949 * from Fabric connections.
951 if (ndlp->nlp_DID != Fabric_DID)
952 lpfc_unreg_rpi(vport, ndlp);
953 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
954 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
955 /* Fail outstanding IO now since device is
958 lpfc_unreg_rpi(vport, ndlp);
964 lpfc_linkup_port(struct lpfc_vport *vport)
966 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
967 struct lpfc_hba *phba = vport->phba;
969 if ((vport->load_flag & FC_UNLOADING) != 0)
972 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
973 "Link Up: top:x%x speed:x%x flg:x%x",
974 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
976 /* If NPIV is not enabled, only bring the physical port up */
977 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
978 (vport != phba->pport))
981 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
983 spin_lock_irq(shost->host_lock);
984 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
985 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
986 vport->fc_flag |= FC_NDISC_ACTIVE;
987 vport->fc_ns_retry = 0;
988 spin_unlock_irq(shost->host_lock);
990 if (vport->fc_flag & FC_LBIT)
991 lpfc_linkup_cleanup_nodes(vport);
996 lpfc_linkup(struct lpfc_hba *phba)
998 struct lpfc_vport **vports;
1001 phba->link_state = LPFC_LINK_UP;
1003 /* Unblock fabric iocbs if they are blocked */
1004 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
1005 del_timer_sync(&phba->fabric_block_timer);
1007 vports = lpfc_create_vport_work_array(phba);
1009 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1010 lpfc_linkup_port(vports[i]);
1011 lpfc_destroy_vport_work_array(phba, vports);
1017 * This routine handles processing a CLEAR_LA mailbox
1018 * command upon completion. It is setup in the LPFC_MBOXQ
1019 * as the completion routine when the command is
1020 * handed off to the SLI layer.
1023 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1025 struct lpfc_vport *vport = pmb->vport;
1026 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1027 struct lpfc_sli *psli = &phba->sli;
1028 MAILBOX_t *mb = &pmb->u.mb;
1031 /* Since we don't do discovery right now, turn these off here */
1032 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1033 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1034 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1036 /* Check for error */
1037 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
1038 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1039 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1040 "0320 CLEAR_LA mbxStatus error x%x hba "
1042 mb->mbxStatus, vport->port_state);
1043 phba->link_state = LPFC_HBA_ERROR;
1047 if (vport->port_type == LPFC_PHYSICAL_PORT)
1048 phba->link_state = LPFC_HBA_READY;
1050 spin_lock_irq(&phba->hbalock);
1051 psli->sli_flag |= LPFC_PROCESS_LA;
1052 control = readl(phba->HCregaddr);
1053 control |= HC_LAINT_ENA;
1054 writel(control, phba->HCregaddr);
1055 readl(phba->HCregaddr); /* flush */
1056 spin_unlock_irq(&phba->hbalock);
1057 mempool_free(pmb, phba->mbox_mem_pool);
1061 /* Device Discovery completes */
1062 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1063 "0225 Device Discovery completes\n");
1064 mempool_free(pmb, phba->mbox_mem_pool);
1066 spin_lock_irq(shost->host_lock);
1067 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
1068 spin_unlock_irq(shost->host_lock);
1070 lpfc_can_disctmo(vport);
1072 /* turn on Link Attention interrupts */
1074 spin_lock_irq(&phba->hbalock);
1075 psli->sli_flag |= LPFC_PROCESS_LA;
1076 control = readl(phba->HCregaddr);
1077 control |= HC_LAINT_ENA;
1078 writel(control, phba->HCregaddr);
1079 readl(phba->HCregaddr); /* flush */
1080 spin_unlock_irq(&phba->hbalock);
1087 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1089 struct lpfc_vport *vport = pmb->vport;
1091 if (pmb->u.mb.mbxStatus)
1094 mempool_free(pmb, phba->mbox_mem_pool);
1096 /* don't perform discovery for SLI4 loopback diagnostic test */
1097 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1098 !(phba->hba_flag & HBA_FCOE_MODE) &&
1099 (phba->link_flag & LS_LOOPBACK_MODE))
1102 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
1103 vport->fc_flag & FC_PUBLIC_LOOP &&
1104 !(vport->fc_flag & FC_LBIT)) {
1105 /* Need to wait for FAN - use discovery timer
1106 * for timeout. port_state is identically
1107 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1109 lpfc_set_disctmo(vport);
1113 /* Start discovery by sending a FLOGI. port_state is identically
1114 * LPFC_FLOGI while waiting for FLOGI cmpl
1116 if (vport->port_state != LPFC_FLOGI)
1117 lpfc_initial_flogi(vport);
1118 else if (vport->fc_flag & FC_PT2PT)
1119 lpfc_disc_start(vport);
1123 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1124 "0306 CONFIG_LINK mbxStatus error x%x "
1126 pmb->u.mb.mbxStatus, vport->port_state);
1127 mempool_free(pmb, phba->mbox_mem_pool);
1129 lpfc_linkdown(phba);
1131 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1132 "0200 CONFIG_LINK bad hba state x%x\n",
1135 lpfc_issue_clear_la(phba, vport);
1140 * lpfc_sli4_clear_fcf_rr_bmask
1141 * @phba pointer to the struct lpfc_hba for this port.
1142 * This fucnction resets the round robin bit mask and clears the
1143 * fcf priority list. The list deletions are done while holding the
1144 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1145 * from the lpfc_fcf_pri record.
1148 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
1150 struct lpfc_fcf_pri *fcf_pri;
1151 struct lpfc_fcf_pri *next_fcf_pri;
1152 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
1153 spin_lock_irq(&phba->hbalock);
1154 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
1155 &phba->fcf.fcf_pri_list, list) {
1156 list_del_init(&fcf_pri->list);
1157 fcf_pri->fcf_rec.flag = 0;
1159 spin_unlock_irq(&phba->hbalock);
1162 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1164 struct lpfc_vport *vport = mboxq->vport;
1166 if (mboxq->u.mb.mbxStatus) {
1167 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1168 "2017 REG_FCFI mbxStatus error x%x "
1170 mboxq->u.mb.mbxStatus, vport->port_state);
1174 /* Start FCoE discovery by sending a FLOGI. */
1175 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1176 /* Set the FCFI registered flag */
1177 spin_lock_irq(&phba->hbalock);
1178 phba->fcf.fcf_flag |= FCF_REGISTERED;
1179 spin_unlock_irq(&phba->hbalock);
1181 /* If there is a pending FCoE event, restart FCF table scan. */
1182 if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
1183 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
1186 /* Mark successful completion of FCF table scan */
1187 spin_lock_irq(&phba->hbalock);
1188 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1189 phba->hba_flag &= ~FCF_TS_INPROG;
1190 if (vport->port_state != LPFC_FLOGI) {
1191 phba->hba_flag |= FCF_RR_INPROG;
1192 spin_unlock_irq(&phba->hbalock);
1193 lpfc_issue_init_vfi(vport);
1196 spin_unlock_irq(&phba->hbalock);
1200 spin_lock_irq(&phba->hbalock);
1201 phba->hba_flag &= ~FCF_RR_INPROG;
1202 spin_unlock_irq(&phba->hbalock);
1204 mempool_free(mboxq, phba->mbox_mem_pool);
1208 * lpfc_fab_name_match - Check if the fcf fabric name match.
1209 * @fab_name: pointer to fabric name.
1210 * @new_fcf_record: pointer to fcf record.
1212 * This routine compare the fcf record's fabric name with provided
1213 * fabric name. If the fabric name are identical this function
1214 * returns 1 else return 0.
1217 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1219 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1221 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1223 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1225 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1227 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1229 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
1231 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1233 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1239 * lpfc_sw_name_match - Check if the fcf switch name match.
1240 * @fab_name: pointer to fabric name.
1241 * @new_fcf_record: pointer to fcf record.
1243 * This routine compare the fcf record's switch name with provided
1244 * switch name. If the switch name are identical this function
1245 * returns 1 else return 0.
1248 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1250 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1252 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1254 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
1256 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1258 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1260 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1262 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1264 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1270 * lpfc_mac_addr_match - Check if the fcf mac address match.
1271 * @mac_addr: pointer to mac address.
1272 * @new_fcf_record: pointer to fcf record.
1274 * This routine compare the fcf record's mac address with HBA's
1275 * FCF mac address. If the mac addresses are identical this function
1276 * returns 1 else return 0.
1279 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
1281 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1283 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1285 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1287 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1289 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1291 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
1297 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1299 return (curr_vlan_id == new_vlan_id);
1303 * lpfc_update_fcf_record - Update driver fcf record
1304 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1305 * @phba: pointer to lpfc hba data structure.
1306 * @fcf_index: Index for the lpfc_fcf_record.
1307 * @new_fcf_record: pointer to hba fcf record.
1309 * This routine updates the driver FCF priority record from the new HBA FCF
1310 * record. This routine is called with the host lock held.
1313 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
1314 struct fcf_record *new_fcf_record
1317 struct lpfc_fcf_pri *fcf_pri;
1319 fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1320 fcf_pri->fcf_rec.fcf_index = fcf_index;
1321 /* FCF record priority */
1322 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
1327 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1328 * @fcf: pointer to driver fcf record.
1329 * @new_fcf_record: pointer to fcf record.
1331 * This routine copies the FCF information from the FCF
1332 * record to lpfc_hba data structure.
1335 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1336 struct fcf_record *new_fcf_record)
1339 fcf_rec->fabric_name[0] =
1340 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
1341 fcf_rec->fabric_name[1] =
1342 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
1343 fcf_rec->fabric_name[2] =
1344 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
1345 fcf_rec->fabric_name[3] =
1346 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
1347 fcf_rec->fabric_name[4] =
1348 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
1349 fcf_rec->fabric_name[5] =
1350 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
1351 fcf_rec->fabric_name[6] =
1352 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
1353 fcf_rec->fabric_name[7] =
1354 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
1356 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1357 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1358 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1359 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1360 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1361 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1362 /* FCF record index */
1363 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1364 /* FCF record priority */
1365 fcf_rec->priority = new_fcf_record->fip_priority;
1367 fcf_rec->switch_name[0] =
1368 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
1369 fcf_rec->switch_name[1] =
1370 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
1371 fcf_rec->switch_name[2] =
1372 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
1373 fcf_rec->switch_name[3] =
1374 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
1375 fcf_rec->switch_name[4] =
1376 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
1377 fcf_rec->switch_name[5] =
1378 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
1379 fcf_rec->switch_name[6] =
1380 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
1381 fcf_rec->switch_name[7] =
1382 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
1386 * lpfc_update_fcf_record - Update driver fcf record
1387 * @phba: pointer to lpfc hba data structure.
1388 * @fcf_rec: pointer to driver fcf record.
1389 * @new_fcf_record: pointer to hba fcf record.
1390 * @addr_mode: address mode to be set to the driver fcf record.
1391 * @vlan_id: vlan tag to be set to the driver fcf record.
1392 * @flag: flag bits to be set to the driver fcf record.
1394 * This routine updates the driver FCF record from the new HBA FCF record
1395 * together with the address mode, vlan_id, and other informations. This
1396 * routine is called with the host lock held.
1399 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1400 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1401 uint16_t vlan_id, uint32_t flag)
1403 /* Copy the fields from the HBA's FCF record */
1404 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1405 /* Update other fields of driver FCF record */
1406 fcf_rec->addr_mode = addr_mode;
1407 fcf_rec->vlan_id = vlan_id;
1408 fcf_rec->flag |= (flag | RECORD_VALID);
1409 __lpfc_update_fcf_record_pri(phba,
1410 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
1415 * lpfc_register_fcf - Register the FCF with hba.
1416 * @phba: pointer to lpfc hba data structure.
1418 * This routine issues a register fcfi mailbox command to register
1422 lpfc_register_fcf(struct lpfc_hba *phba)
1424 LPFC_MBOXQ_t *fcf_mbxq;
1427 spin_lock_irq(&phba->hbalock);
1428 /* If the FCF is not available do nothing. */
1429 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
1430 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1431 spin_unlock_irq(&phba->hbalock);
1435 /* The FCF is already registered, start discovery */
1436 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
1437 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1438 phba->hba_flag &= ~FCF_TS_INPROG;
1439 if (phba->pport->port_state != LPFC_FLOGI &&
1440 phba->pport->fc_flag & FC_FABRIC) {
1441 phba->hba_flag |= FCF_RR_INPROG;
1442 spin_unlock_irq(&phba->hbalock);
1443 lpfc_initial_flogi(phba->pport);
1446 spin_unlock_irq(&phba->hbalock);
1449 spin_unlock_irq(&phba->hbalock);
1451 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1453 spin_lock_irq(&phba->hbalock);
1454 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1455 spin_unlock_irq(&phba->hbalock);
1459 lpfc_reg_fcfi(phba, fcf_mbxq);
1460 fcf_mbxq->vport = phba->pport;
1461 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1462 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
1463 if (rc == MBX_NOT_FINISHED) {
1464 spin_lock_irq(&phba->hbalock);
1465 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1466 spin_unlock_irq(&phba->hbalock);
1467 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
1474 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1475 * @phba: pointer to lpfc hba data structure.
1476 * @new_fcf_record: pointer to fcf record.
1477 * @boot_flag: Indicates if this record used by boot bios.
1478 * @addr_mode: The address mode to be used by this FCF
1479 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1481 * This routine compare the fcf record with connect list obtained from the
1482 * config region to decide if this FCF can be used for SAN discovery. It returns
1483 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1484 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1485 * is used by boot bios and addr_mode will indicate the addressing mode to be
1486 * used for this FCF when the function returns.
1487 * If the FCF record need to be used with a particular vlan id, the vlan is
1488 * set in the vlan_id on return of the function. If not VLAN tagging need to
1489 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1492 lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1493 struct fcf_record *new_fcf_record,
1494 uint32_t *boot_flag, uint32_t *addr_mode,
1497 struct lpfc_fcf_conn_entry *conn_entry;
1498 int i, j, fcf_vlan_id = 0;
1500 /* Find the lowest VLAN id in the FCF record */
1501 for (i = 0; i < 512; i++) {
1502 if (new_fcf_record->vlan_bitmap[i]) {
1503 fcf_vlan_id = i * 8;
1505 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1513 /* FCF not valid/available or solicitation in progress */
1514 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1515 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||
1516 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))
1519 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
1521 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1523 if (phba->valid_vlan)
1524 *vlan_id = phba->vlan_id;
1526 *vlan_id = LPFC_FCOE_NULL_VID;
1531 * If there are no FCF connection table entry, driver connect to all
1534 if (list_empty(&phba->fcf_conn_rec_list)) {
1536 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1540 * When there are no FCF connect entries, use driver's default
1541 * addressing mode - FPMA.
1543 if (*addr_mode & LPFC_FCF_FPMA)
1544 *addr_mode = LPFC_FCF_FPMA;
1546 /* If FCF record report a vlan id use that vlan id */
1548 *vlan_id = fcf_vlan_id;
1550 *vlan_id = LPFC_FCOE_NULL_VID;
1554 list_for_each_entry(conn_entry,
1555 &phba->fcf_conn_rec_list, list) {
1556 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1559 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1560 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
1563 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1564 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1567 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1569 * If the vlan bit map does not have the bit set for the
1570 * vlan id to be used, then it is not a match.
1572 if (!(new_fcf_record->vlan_bitmap
1573 [conn_entry->conn_rec.vlan_tag / 8] &
1574 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1579 * If connection record does not support any addressing mode,
1580 * skip the FCF record.
1582 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1583 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1587 * Check if the connection record specifies a required
1590 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1591 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1594 * If SPMA required but FCF not support this continue.
1596 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1597 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1598 new_fcf_record) & LPFC_FCF_SPMA))
1602 * If FPMA required but FCF not support this continue.
1604 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1605 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1606 new_fcf_record) & LPFC_FCF_FPMA))
1611 * This fcf record matches filtering criteria.
1613 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1619 * If user did not specify any addressing mode, or if the
1620 * preferred addressing mode specified by user is not supported
1621 * by FCF, allow fabric to pick the addressing mode.
1623 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1626 * If the user specified a required address mode, assign that
1629 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1630 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1631 *addr_mode = (conn_entry->conn_rec.flags &
1633 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1635 * If the user specified a preferred address mode, use the
1636 * addr mode only if FCF support the addr_mode.
1638 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1639 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1640 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1641 (*addr_mode & LPFC_FCF_SPMA))
1642 *addr_mode = LPFC_FCF_SPMA;
1643 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1644 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1645 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1646 (*addr_mode & LPFC_FCF_FPMA))
1647 *addr_mode = LPFC_FCF_FPMA;
1649 /* If matching connect list has a vlan id, use it */
1650 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1651 *vlan_id = conn_entry->conn_rec.vlan_tag;
1653 * If no vlan id is specified in connect list, use the vlan id
1656 else if (fcf_vlan_id)
1657 *vlan_id = fcf_vlan_id;
1659 *vlan_id = LPFC_FCOE_NULL_VID;
1668 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1669 * @phba: pointer to lpfc hba data structure.
1670 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1672 * This function check if there is any fcoe event pending while driver
1673 * scan FCF entries. If there is any pending event, it will restart the
1674 * FCF saning and return 1 else return 0.
1677 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1680 * If the Link is up and no FCoE events while in the
1681 * FCF discovery, no need to restart FCF discovery.
1683 if ((phba->link_state >= LPFC_LINK_UP) &&
1684 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
1687 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1688 "2768 Pending link or FCF event during current "
1689 "handling of the previous event: link_state:x%x, "
1690 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1691 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
1692 phba->fcoe_eventtag);
1694 spin_lock_irq(&phba->hbalock);
1695 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1696 spin_unlock_irq(&phba->hbalock);
1698 if (phba->link_state >= LPFC_LINK_UP) {
1699 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1700 "2780 Restart FCF table scan due to "
1701 "pending FCF event:evt_tag_at_scan:x%x, "
1702 "evt_tag_current:x%x\n",
1703 phba->fcoe_eventtag_at_fcf_scan,
1704 phba->fcoe_eventtag);
1705 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
1708 * Do not continue FCF discovery and clear FCF_TS_INPROG
1711 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1712 "2833 Stop FCF discovery process due to link "
1713 "state change (x%x)\n", phba->link_state);
1714 spin_lock_irq(&phba->hbalock);
1715 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1716 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
1717 spin_unlock_irq(&phba->hbalock);
1720 /* Unregister the currently registered FCF if required */
1722 spin_lock_irq(&phba->hbalock);
1723 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1724 spin_unlock_irq(&phba->hbalock);
1725 lpfc_sli4_unregister_fcf(phba);
1731 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1732 * @phba: pointer to lpfc hba data structure.
1733 * @fcf_cnt: number of eligible fcf record seen so far.
1735 * This function makes an running random selection decision on FCF record to
1736 * use through a sequence of @fcf_cnt eligible FCF records with equal
1737 * probability. To perform integer manunipulation of random numbers with
1738 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1739 * from prandom_u32() are taken as the random random number generated.
1741 * Returns true when outcome is for the newly read FCF record should be
1742 * chosen; otherwise, return false when outcome is for keeping the previously
1743 * chosen FCF record.
1746 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
1750 /* Get 16-bit uniform random number */
1751 rand_num = 0xFFFF & prandom_u32();
1753 /* Decision with probability 1/fcf_cnt */
1754 if ((fcf_cnt * rand_num) < 0xFFFF)
1761 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
1762 * @phba: pointer to lpfc hba data structure.
1763 * @mboxq: pointer to mailbox object.
1764 * @next_fcf_index: pointer to holder of next fcf index.
1766 * This routine parses the non-embedded fcf mailbox command by performing the
1767 * necessarily error checking, non-embedded read FCF record mailbox command
1768 * SGE parsing, and endianness swapping.
1770 * Returns the pointer to the new FCF record in the non-embedded mailbox
1771 * command DMA memory if successfully, other NULL.
1773 static struct fcf_record *
1774 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
1775 uint16_t *next_fcf_index)
1778 struct lpfc_mbx_sge sge;
1779 struct lpfc_mbx_read_fcf_tbl *read_fcf;
1780 uint32_t shdr_status, shdr_add_status, if_type;
1781 union lpfc_sli4_cfg_shdr *shdr;
1782 struct fcf_record *new_fcf_record;
1784 /* Get the first SGE entry from the non-embedded DMA memory. This
1785 * routine only uses a single SGE.
1787 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1788 if (unlikely(!mboxq->sge_array)) {
1789 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1790 "2524 Failed to get the non-embedded SGE "
1791 "virtual address\n");
1794 virt_addr = mboxq->sge_array->addr[0];
1796 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
1797 lpfc_sli_pcimem_bcopy(shdr, shdr,
1798 sizeof(union lpfc_sli4_cfg_shdr));
1799 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
1800 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1801 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
1802 if (shdr_status || shdr_add_status) {
1803 if (shdr_status == STATUS_FCF_TABLE_EMPTY ||
1804 if_type == LPFC_SLI_INTF_IF_TYPE_2)
1805 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1806 "2726 READ_FCF_RECORD Indicates empty "
1809 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1810 "2521 READ_FCF_RECORD mailbox failed "
1811 "with status x%x add_status x%x, "
1812 "mbx\n", shdr_status, shdr_add_status);
1816 /* Interpreting the returned information of the FCF record */
1817 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1818 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1819 sizeof(struct lpfc_mbx_read_fcf_tbl));
1820 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
1821 new_fcf_record = (struct fcf_record *)(virt_addr +
1822 sizeof(struct lpfc_mbx_read_fcf_tbl));
1823 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
1824 offsetof(struct fcf_record, vlan_bitmap));
1825 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
1826 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
1828 return new_fcf_record;
1832 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1833 * @phba: pointer to lpfc hba data structure.
1834 * @fcf_record: pointer to the fcf record.
1835 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1836 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1838 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1842 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
1843 struct fcf_record *fcf_record,
1845 uint16_t next_fcf_index)
1847 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1848 "2764 READ_FCF_RECORD:\n"
1849 "\tFCF_Index : x%x\n"
1850 "\tFCF_Avail : x%x\n"
1851 "\tFCF_Valid : x%x\n"
1853 "\tFIP_Priority : x%x\n"
1854 "\tMAC_Provider : x%x\n"
1855 "\tLowest VLANID : x%x\n"
1856 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1857 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1858 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1859 "\tNext_FCF_Index: x%x\n",
1860 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
1861 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
1862 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
1863 bf_get(lpfc_fcf_record_fcf_sol, fcf_record),
1864 fcf_record->fip_priority,
1865 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
1867 bf_get(lpfc_fcf_record_mac_0, fcf_record),
1868 bf_get(lpfc_fcf_record_mac_1, fcf_record),
1869 bf_get(lpfc_fcf_record_mac_2, fcf_record),
1870 bf_get(lpfc_fcf_record_mac_3, fcf_record),
1871 bf_get(lpfc_fcf_record_mac_4, fcf_record),
1872 bf_get(lpfc_fcf_record_mac_5, fcf_record),
1873 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
1874 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
1875 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
1876 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
1877 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
1878 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
1879 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
1880 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
1881 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
1882 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
1883 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
1884 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
1885 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
1886 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
1887 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
1888 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
1893 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1894 * @phba: pointer to lpfc hba data structure.
1895 * @fcf_rec: pointer to an existing FCF record.
1896 * @new_fcf_record: pointer to a new FCF record.
1897 * @new_vlan_id: vlan id from the new FCF record.
1899 * This function performs matching test of a new FCF record against an existing
1900 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1901 * will not be used as part of the FCF record matching criteria.
1903 * Returns true if all the fields matching, otherwise returns false.
1906 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
1907 struct lpfc_fcf_rec *fcf_rec,
1908 struct fcf_record *new_fcf_record,
1909 uint16_t new_vlan_id)
1911 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
1912 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
1914 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
1916 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
1918 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
1920 if (fcf_rec->priority != new_fcf_record->fip_priority)
1926 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1927 * @vport: Pointer to vport object.
1928 * @fcf_index: index to next fcf.
1930 * This function processing the roundrobin fcf failover to next fcf index.
1931 * When this function is invoked, there will be a current fcf registered
1933 * Return: 0 for continue retrying flogi on currently registered fcf;
1934 * 1 for stop flogi on currently registered fcf;
1936 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
1938 struct lpfc_hba *phba = vport->phba;
1941 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
1942 spin_lock_irq(&phba->hbalock);
1943 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
1944 spin_unlock_irq(&phba->hbalock);
1945 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1946 "2872 Devloss tmo with no eligible "
1947 "FCF, unregister in-use FCF (x%x) "
1948 "and rescan FCF table\n",
1949 phba->fcf.current_rec.fcf_indx);
1950 lpfc_unregister_fcf_rescan(phba);
1951 goto stop_flogi_current_fcf;
1953 /* Mark the end to FLOGI roundrobin failover */
1954 phba->hba_flag &= ~FCF_RR_INPROG;
1955 /* Allow action to new fcf asynchronous event */
1956 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
1957 spin_unlock_irq(&phba->hbalock);
1958 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1959 "2865 No FCF available, stop roundrobin FCF "
1960 "failover and change port state:x%x/x%x\n",
1961 phba->pport->port_state, LPFC_VPORT_UNKNOWN);
1962 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
1963 goto stop_flogi_current_fcf;
1965 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
1966 "2794 Try FLOGI roundrobin FCF failover to "
1967 "(x%x)\n", fcf_index);
1968 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
1970 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
1971 "2761 FLOGI roundrobin FCF failover "
1972 "failed (rc:x%x) to read FCF (x%x)\n",
1973 rc, phba->fcf.current_rec.fcf_indx);
1975 goto stop_flogi_current_fcf;
1979 stop_flogi_current_fcf:
1980 lpfc_can_disctmo(vport);
1985 * lpfc_sli4_fcf_pri_list_del
1986 * @phba: pointer to lpfc hba data structure.
1987 * @fcf_index the index of the fcf record to delete
1988 * This routine checks the on list flag of the fcf_index to be deleted.
1989 * If it is one the list then it is removed from the list, and the flag
1990 * is cleared. This routine grab the hbalock before removing the fcf
1991 * record from the list.
1993 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
1996 struct lpfc_fcf_pri *new_fcf_pri;
1998 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1999 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2000 "3058 deleting idx x%x pri x%x flg x%x\n",
2001 fcf_index, new_fcf_pri->fcf_rec.priority,
2002 new_fcf_pri->fcf_rec.flag);
2003 spin_lock_irq(&phba->hbalock);
2004 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
2005 if (phba->fcf.current_rec.priority ==
2006 new_fcf_pri->fcf_rec.priority)
2007 phba->fcf.eligible_fcf_cnt--;
2008 list_del_init(&new_fcf_pri->list);
2009 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
2011 spin_unlock_irq(&phba->hbalock);
2015 * lpfc_sli4_set_fcf_flogi_fail
2016 * @phba: pointer to lpfc hba data structure.
2017 * @fcf_index the index of the fcf record to update
2018 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2019 * flag so the the round robin slection for the particular priority level
2020 * will try a different fcf record that does not have this bit set.
2021 * If the fcf record is re-read for any reason this flag is cleared brfore
2022 * adding it to the priority list.
2025 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
2027 struct lpfc_fcf_pri *new_fcf_pri;
2028 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2029 spin_lock_irq(&phba->hbalock);
2030 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
2031 spin_unlock_irq(&phba->hbalock);
2035 * lpfc_sli4_fcf_pri_list_add
2036 * @phba: pointer to lpfc hba data structure.
2037 * @fcf_index the index of the fcf record to add
2038 * This routine checks the priority of the fcf_index to be added.
2039 * If it is a lower priority than the current head of the fcf_pri list
2040 * then it is added to the list in the right order.
2041 * If it is the same priority as the current head of the list then it
2042 * is added to the head of the list and its bit in the rr_bmask is set.
2043 * If the fcf_index to be added is of a higher priority than the current
2044 * head of the list then the rr_bmask is cleared, its bit is set in the
2045 * rr_bmask and it is added to the head of the list.
2047 * 0=success 1=failure
2049 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba,
2051 struct fcf_record *new_fcf_record)
2053 uint16_t current_fcf_pri;
2054 uint16_t last_index;
2055 struct lpfc_fcf_pri *fcf_pri;
2056 struct lpfc_fcf_pri *next_fcf_pri;
2057 struct lpfc_fcf_pri *new_fcf_pri;
2060 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2061 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2062 "3059 adding idx x%x pri x%x flg x%x\n",
2063 fcf_index, new_fcf_record->fip_priority,
2064 new_fcf_pri->fcf_rec.flag);
2065 spin_lock_irq(&phba->hbalock);
2066 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
2067 list_del_init(&new_fcf_pri->list);
2068 new_fcf_pri->fcf_rec.fcf_index = fcf_index;
2069 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
2070 if (list_empty(&phba->fcf.fcf_pri_list)) {
2071 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2072 ret = lpfc_sli4_fcf_rr_index_set(phba,
2073 new_fcf_pri->fcf_rec.fcf_index);
2077 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
2078 LPFC_SLI4_FCF_TBL_INDX_MAX);
2079 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
2080 ret = 0; /* Empty rr list */
2083 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
2084 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
2085 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2086 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
2087 memset(phba->fcf.fcf_rr_bmask, 0,
2088 sizeof(*phba->fcf.fcf_rr_bmask));
2089 /* fcfs_at_this_priority_level = 1; */
2090 phba->fcf.eligible_fcf_cnt = 1;
2092 /* fcfs_at_this_priority_level++; */
2093 phba->fcf.eligible_fcf_cnt++;
2094 ret = lpfc_sli4_fcf_rr_index_set(phba,
2095 new_fcf_pri->fcf_rec.fcf_index);
2099 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
2100 &phba->fcf.fcf_pri_list, list) {
2101 if (new_fcf_pri->fcf_rec.priority <=
2102 fcf_pri->fcf_rec.priority) {
2103 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
2104 list_add(&new_fcf_pri->list,
2105 &phba->fcf.fcf_pri_list);
2107 list_add(&new_fcf_pri->list,
2108 &((struct lpfc_fcf_pri *)
2109 fcf_pri->list.prev)->list);
2112 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
2113 || new_fcf_pri->fcf_rec.priority <
2114 next_fcf_pri->fcf_rec.priority) {
2115 list_add(&new_fcf_pri->list, &fcf_pri->list);
2119 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
2125 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2126 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
2127 spin_unlock_irq(&phba->hbalock);
2132 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2133 * @phba: pointer to lpfc hba data structure.
2134 * @mboxq: pointer to mailbox object.
2136 * This function iterates through all the fcf records available in
2137 * HBA and chooses the optimal FCF record for discovery. After finding
2138 * the FCF for discovery it registers the FCF record and kicks start
2140 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2141 * use an FCF record which matches fabric name and mac address of the
2142 * currently used FCF record.
2143 * If the driver supports only one FCF, it will try to use the FCF record
2144 * used by BOOT_BIOS.
2147 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2149 struct fcf_record *new_fcf_record;
2150 uint32_t boot_flag, addr_mode;
2151 uint16_t fcf_index, next_fcf_index;
2152 struct lpfc_fcf_rec *fcf_rec = NULL;
2154 bool select_new_fcf;
2157 /* If there is pending FCoE event restart FCF table scan */
2158 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
2159 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2163 /* Parse the FCF record from the non-embedded mailbox command */
2164 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2166 if (!new_fcf_record) {
2167 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2168 "2765 Mailbox command READ_FCF_RECORD "
2169 "failed to retrieve a FCF record.\n");
2170 /* Let next new FCF event trigger fast failover */
2171 spin_lock_irq(&phba->hbalock);
2172 phba->hba_flag &= ~FCF_TS_INPROG;
2173 spin_unlock_irq(&phba->hbalock);
2174 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2178 /* Check the FCF record against the connection list */
2179 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2180 &addr_mode, &vlan_id);
2182 /* Log the FCF record information if turned on */
2183 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2187 * If the fcf record does not match with connect list entries
2188 * read the next entry; otherwise, this is an eligible FCF
2189 * record for roundrobin FCF failover.
2192 lpfc_sli4_fcf_pri_list_del(phba,
2193 bf_get(lpfc_fcf_record_fcf_index,
2195 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2196 "2781 FCF (x%x) failed connection "
2197 "list check: (x%x/x%x/%x)\n",
2198 bf_get(lpfc_fcf_record_fcf_index,
2200 bf_get(lpfc_fcf_record_fcf_avail,
2202 bf_get(lpfc_fcf_record_fcf_valid,
2204 bf_get(lpfc_fcf_record_fcf_sol,
2206 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
2207 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2208 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
2209 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
2210 phba->fcf.current_rec.fcf_indx) {
2211 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2212 "2862 FCF (x%x) matches property "
2213 "of in-use FCF (x%x)\n",
2214 bf_get(lpfc_fcf_record_fcf_index,
2216 phba->fcf.current_rec.fcf_indx);
2220 * In case the current in-use FCF record becomes
2221 * invalid/unavailable during FCF discovery that
2222 * was not triggered by fast FCF failover process,
2223 * treat it as fast FCF failover.
2225 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
2226 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2227 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2228 "2835 Invalid in-use FCF "
2229 "(x%x), enter FCF failover "
2231 phba->fcf.current_rec.fcf_indx);
2232 spin_lock_irq(&phba->hbalock);
2233 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2234 spin_unlock_irq(&phba->hbalock);
2235 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2236 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2237 LPFC_FCOE_FCF_GET_FIRST);
2243 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2244 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
2251 * If this is not the first FCF discovery of the HBA, use last
2252 * FCF record for the discovery. The condition that a rescan
2253 * matches the in-use FCF record: fabric name, switch name, mac
2254 * address, and vlan_id.
2256 spin_lock_irq(&phba->hbalock);
2257 if (phba->fcf.fcf_flag & FCF_IN_USE) {
2258 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2259 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2260 new_fcf_record, vlan_id)) {
2261 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
2262 phba->fcf.current_rec.fcf_indx) {
2263 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2264 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
2265 /* Stop FCF redisc wait timer */
2266 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2268 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2269 /* Fast failover, mark completed */
2270 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2271 spin_unlock_irq(&phba->hbalock);
2272 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2273 "2836 New FCF matches in-use "
2274 "FCF (x%x), port_state:x%x, "
2276 phba->fcf.current_rec.fcf_indx,
2277 phba->pport->port_state,
2278 phba->pport->fc_flag);
2281 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2282 "2863 New FCF (x%x) matches "
2283 "property of in-use FCF (x%x)\n",
2284 bf_get(lpfc_fcf_record_fcf_index,
2286 phba->fcf.current_rec.fcf_indx);
2289 * Read next FCF record from HBA searching for the matching
2290 * with in-use record only if not during the fast failover
2291 * period. In case of fast failover period, it shall try to
2292 * determine whether the FCF record just read should be the
2295 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2296 spin_unlock_irq(&phba->hbalock);
2301 * Update on failover FCF record only if it's in FCF fast-failover
2302 * period; otherwise, update on current FCF record.
2304 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2305 fcf_rec = &phba->fcf.failover_rec;
2307 fcf_rec = &phba->fcf.current_rec;
2309 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
2311 * If the driver FCF record does not have boot flag
2312 * set and new hba fcf record has boot flag set, use
2313 * the new hba fcf record.
2315 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
2316 /* Choose this FCF record */
2317 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2318 "2837 Update current FCF record "
2319 "(x%x) with new FCF record (x%x)\n",
2321 bf_get(lpfc_fcf_record_fcf_index,
2323 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2324 addr_mode, vlan_id, BOOT_ENABLE);
2325 spin_unlock_irq(&phba->hbalock);
2329 * If the driver FCF record has boot flag set and the
2330 * new hba FCF record does not have boot flag, read
2331 * the next FCF record.
2333 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
2334 spin_unlock_irq(&phba->hbalock);
2338 * If the new hba FCF record has lower priority value
2339 * than the driver FCF record, use the new record.
2341 if (new_fcf_record->fip_priority < fcf_rec->priority) {
2342 /* Choose the new FCF record with lower priority */
2343 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2344 "2838 Update current FCF record "
2345 "(x%x) with new FCF record (x%x)\n",
2347 bf_get(lpfc_fcf_record_fcf_index,
2349 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2350 addr_mode, vlan_id, 0);
2351 /* Reset running random FCF selection count */
2352 phba->fcf.eligible_fcf_cnt = 1;
2353 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
2354 /* Update running random FCF selection count */
2355 phba->fcf.eligible_fcf_cnt++;
2356 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
2357 phba->fcf.eligible_fcf_cnt);
2358 if (select_new_fcf) {
2359 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2360 "2839 Update current FCF record "
2361 "(x%x) with new FCF record (x%x)\n",
2363 bf_get(lpfc_fcf_record_fcf_index,
2365 /* Choose the new FCF by random selection */
2366 __lpfc_update_fcf_record(phba, fcf_rec,
2368 addr_mode, vlan_id, 0);
2371 spin_unlock_irq(&phba->hbalock);
2375 * This is the first suitable FCF record, choose this record for
2376 * initial best-fit FCF.
2379 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2380 "2840 Update initial FCF candidate "
2382 bf_get(lpfc_fcf_record_fcf_index,
2384 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2385 addr_mode, vlan_id, (boot_flag ?
2387 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2388 /* Setup initial running random FCF selection count */
2389 phba->fcf.eligible_fcf_cnt = 1;
2391 spin_unlock_irq(&phba->hbalock);
2395 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2396 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
2397 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
2399 * Case of FCF fast failover scan
2403 * It has not found any suitable FCF record, cancel
2404 * FCF scan inprogress, and do nothing
2406 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
2407 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2408 "2782 No suitable FCF found: "
2410 phba->fcoe_eventtag_at_fcf_scan,
2411 bf_get(lpfc_fcf_record_fcf_index,
2413 spin_lock_irq(&phba->hbalock);
2414 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2415 phba->hba_flag &= ~FCF_TS_INPROG;
2416 spin_unlock_irq(&phba->hbalock);
2417 /* Unregister in-use FCF and rescan */
2418 lpfc_printf_log(phba, KERN_INFO,
2420 "2864 On devloss tmo "
2421 "unreg in-use FCF and "
2422 "rescan FCF table\n");
2423 lpfc_unregister_fcf_rescan(phba);
2427 * Let next new FCF event trigger fast failover
2429 phba->hba_flag &= ~FCF_TS_INPROG;
2430 spin_unlock_irq(&phba->hbalock);
2434 * It has found a suitable FCF record that is not
2435 * the same as in-use FCF record, unregister the
2436 * in-use FCF record, replace the in-use FCF record
2437 * with the new FCF record, mark FCF fast failover
2438 * completed, and then start register the new FCF
2442 /* Unregister the current in-use FCF record */
2443 lpfc_unregister_fcf(phba);
2445 /* Replace in-use record with the new record */
2446 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2447 "2842 Replace in-use FCF (x%x) "
2448 "with failover FCF (x%x)\n",
2449 phba->fcf.current_rec.fcf_indx,
2450 phba->fcf.failover_rec.fcf_indx);
2451 memcpy(&phba->fcf.current_rec,
2452 &phba->fcf.failover_rec,
2453 sizeof(struct lpfc_fcf_rec));
2455 * Mark the fast FCF failover rediscovery completed
2456 * and the start of the first round of the roundrobin
2459 spin_lock_irq(&phba->hbalock);
2460 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2461 spin_unlock_irq(&phba->hbalock);
2462 /* Register to the new FCF record */
2463 lpfc_register_fcf(phba);
2466 * In case of transaction period to fast FCF failover,
2467 * do nothing when search to the end of the FCF table.
2469 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
2470 (phba->fcf.fcf_flag & FCF_REDISC_PEND))
2473 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2474 phba->fcf.fcf_flag & FCF_IN_USE) {
2476 * In case the current in-use FCF record no
2477 * longer existed during FCF discovery that
2478 * was not triggered by fast FCF failover
2479 * process, treat it as fast FCF failover.
2481 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2482 "2841 In-use FCF record (x%x) "
2483 "not reported, entering fast "
2484 "FCF failover mode scanning.\n",
2485 phba->fcf.current_rec.fcf_indx);
2486 spin_lock_irq(&phba->hbalock);
2487 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2488 spin_unlock_irq(&phba->hbalock);
2489 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2490 LPFC_FCOE_FCF_GET_FIRST);
2493 /* Register to the new FCF record */
2494 lpfc_register_fcf(phba);
2497 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
2501 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2502 lpfc_register_fcf(phba);
2508 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2509 * @phba: pointer to lpfc hba data structure.
2510 * @mboxq: pointer to mailbox object.
2512 * This is the callback function for FLOGI failure roundrobin FCF failover
2513 * read FCF record mailbox command from the eligible FCF record bmask for
2514 * performing the failover. If the FCF read back is not valid/available, it
2515 * fails through to retrying FLOGI to the currently registered FCF again.
2516 * Otherwise, if the FCF read back is valid and available, it will set the
2517 * newly read FCF record to the failover FCF record, unregister currently
2518 * registered FCF record, copy the failover FCF record to the current
2519 * FCF record, and then register the current FCF record before proceeding
2520 * to trying FLOGI on the new failover FCF.
2523 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2525 struct fcf_record *new_fcf_record;
2526 uint32_t boot_flag, addr_mode;
2527 uint16_t next_fcf_index, fcf_index;
2528 uint16_t current_fcf_index;
2532 /* If link state is not up, stop the roundrobin failover process */
2533 if (phba->link_state < LPFC_LINK_UP) {
2534 spin_lock_irq(&phba->hbalock);
2535 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
2536 phba->hba_flag &= ~FCF_RR_INPROG;
2537 spin_unlock_irq(&phba->hbalock);
2541 /* Parse the FCF record from the non-embedded mailbox command */
2542 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2544 if (!new_fcf_record) {
2545 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2546 "2766 Mailbox command READ_FCF_RECORD "
2547 "failed to retrieve a FCF record. "
2548 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag,
2549 phba->fcf.fcf_flag);
2550 lpfc_unregister_fcf_rescan(phba);
2554 /* Get the needed parameters from FCF record */
2555 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2556 &addr_mode, &vlan_id);
2558 /* Log the FCF record information if turned on */
2559 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2562 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2564 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2565 "2848 Remove ineligible FCF (x%x) from "
2566 "from roundrobin bmask\n", fcf_index);
2567 /* Clear roundrobin bmask bit for ineligible FCF */
2568 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
2569 /* Perform next round of roundrobin FCF failover */
2570 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
2571 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
2577 if (fcf_index == phba->fcf.current_rec.fcf_indx) {
2578 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2579 "2760 Perform FLOGI roundrobin FCF failover: "
2580 "FCF (x%x) back to FCF (x%x)\n",
2581 phba->fcf.current_rec.fcf_indx, fcf_index);
2582 /* Wait 500 ms before retrying FLOGI to current FCF */
2584 lpfc_issue_init_vfi(phba->pport);
2588 /* Upload new FCF record to the failover FCF record */
2589 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2590 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2591 phba->fcf.failover_rec.fcf_indx, fcf_index);
2592 spin_lock_irq(&phba->hbalock);
2593 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2594 new_fcf_record, addr_mode, vlan_id,
2595 (boot_flag ? BOOT_ENABLE : 0));
2596 spin_unlock_irq(&phba->hbalock);
2598 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2600 /* Unregister the current in-use FCF record */
2601 lpfc_unregister_fcf(phba);
2603 /* Replace in-use record with the new record */
2604 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2605 sizeof(struct lpfc_fcf_rec));
2607 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2608 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2609 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
2612 lpfc_register_fcf(phba);
2614 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2618 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2619 * @phba: pointer to lpfc hba data structure.
2620 * @mboxq: pointer to mailbox object.
2622 * This is the callback function of read FCF record mailbox command for
2623 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
2624 * failover when a new FCF event happened. If the FCF read back is
2625 * valid/available and it passes the connection list check, it updates
2626 * the bmask for the eligible FCF record for roundrobin failover.
2629 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2631 struct fcf_record *new_fcf_record;
2632 uint32_t boot_flag, addr_mode;
2633 uint16_t fcf_index, next_fcf_index;
2637 /* If link state is not up, no need to proceed */
2638 if (phba->link_state < LPFC_LINK_UP)
2641 /* If FCF discovery period is over, no need to proceed */
2642 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
2645 /* Parse the FCF record from the non-embedded mailbox command */
2646 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2648 if (!new_fcf_record) {
2649 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2650 "2767 Mailbox command READ_FCF_RECORD "
2651 "failed to retrieve a FCF record.\n");
2655 /* Check the connection list for eligibility */
2656 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2657 &addr_mode, &vlan_id);
2659 /* Log the FCF record information if turned on */
2660 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2666 /* Update the eligible FCF record index bmask */
2667 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2669 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
2672 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2676 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2677 * @phba: pointer to lpfc hba data structure.
2678 * @mboxq: pointer to mailbox data structure.
2680 * This function handles completion of init vfi mailbox command.
2683 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2685 struct lpfc_vport *vport = mboxq->vport;
2688 * VFI not supported on interface type 0, just do the flogi
2689 * Also continue if the VFI is in use - just use the same one.
2691 if (mboxq->u.mb.mbxStatus &&
2692 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2693 LPFC_SLI_INTF_IF_TYPE_0) &&
2694 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2695 lpfc_printf_vlog(vport, KERN_ERR,
2697 "2891 Init VFI mailbox failed 0x%x\n",
2698 mboxq->u.mb.mbxStatus);
2699 mempool_free(mboxq, phba->mbox_mem_pool);
2700 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2704 lpfc_initial_flogi(vport);
2705 mempool_free(mboxq, phba->mbox_mem_pool);
2710 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2711 * @vport: pointer to lpfc_vport data structure.
2713 * This function issue a init_vfi mailbox command to initialize the VFI and
2714 * VPI for the physical port.
2717 lpfc_issue_init_vfi(struct lpfc_vport *vport)
2719 LPFC_MBOXQ_t *mboxq;
2721 struct lpfc_hba *phba = vport->phba;
2723 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2725 lpfc_printf_vlog(vport, KERN_ERR,
2726 LOG_MBOX, "2892 Failed to allocate "
2727 "init_vfi mailbox\n");
2730 lpfc_init_vfi(mboxq, vport);
2731 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
2732 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
2733 if (rc == MBX_NOT_FINISHED) {
2734 lpfc_printf_vlog(vport, KERN_ERR,
2735 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n");
2736 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2741 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2742 * @phba: pointer to lpfc hba data structure.
2743 * @mboxq: pointer to mailbox data structure.
2745 * This function handles completion of init vpi mailbox command.
2748 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2750 struct lpfc_vport *vport = mboxq->vport;
2751 struct lpfc_nodelist *ndlp;
2752 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2754 if (mboxq->u.mb.mbxStatus) {
2755 lpfc_printf_vlog(vport, KERN_ERR,
2757 "2609 Init VPI mailbox failed 0x%x\n",
2758 mboxq->u.mb.mbxStatus);
2759 mempool_free(mboxq, phba->mbox_mem_pool);
2760 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2763 spin_lock_irq(shost->host_lock);
2764 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
2765 spin_unlock_irq(shost->host_lock);
2767 /* If this port is physical port or FDISC is done, do reg_vpi */
2768 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
2769 ndlp = lpfc_findnode_did(vport, Fabric_DID);
2771 lpfc_printf_vlog(vport, KERN_ERR,
2773 "2731 Cannot find fabric "
2774 "controller node\n");
2776 lpfc_register_new_vport(phba, vport, ndlp);
2777 mempool_free(mboxq, phba->mbox_mem_pool);
2781 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2782 lpfc_initial_fdisc(vport);
2784 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
2785 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2786 "2606 No NPIV Fabric support\n");
2788 mempool_free(mboxq, phba->mbox_mem_pool);
2793 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2794 * @vport: pointer to lpfc_vport data structure.
2796 * This function issue a init_vpi mailbox command to initialize
2797 * VPI for the vport.
2800 lpfc_issue_init_vpi(struct lpfc_vport *vport)
2802 LPFC_MBOXQ_t *mboxq;
2805 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {
2806 vpi = lpfc_alloc_vpi(vport->phba);
2808 lpfc_printf_vlog(vport, KERN_ERR,
2810 "3303 Failed to obtain vport vpi\n");
2811 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2817 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
2819 lpfc_printf_vlog(vport, KERN_ERR,
2820 LOG_MBOX, "2607 Failed to allocate "
2821 "init_vpi mailbox\n");
2824 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
2825 mboxq->vport = vport;
2826 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
2827 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
2828 if (rc == MBX_NOT_FINISHED) {
2829 lpfc_printf_vlog(vport, KERN_ERR,
2830 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
2831 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2836 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2837 * @phba: pointer to lpfc hba data structure.
2839 * This function loops through the list of vports on the @phba and issues an
2840 * FDISC if possible.
2843 lpfc_start_fdiscs(struct lpfc_hba *phba)
2845 struct lpfc_vport **vports;
2848 vports = lpfc_create_vport_work_array(phba);
2849 if (vports != NULL) {
2850 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2851 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
2853 /* There are no vpi for this vport */
2854 if (vports[i]->vpi > phba->max_vpi) {
2855 lpfc_vport_set_state(vports[i],
2859 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2860 lpfc_vport_set_state(vports[i],
2864 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
2865 lpfc_issue_init_vpi(vports[i]);
2868 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2869 lpfc_initial_fdisc(vports[i]);
2871 lpfc_vport_set_state(vports[i],
2872 FC_VPORT_NO_FABRIC_SUPP);
2873 lpfc_printf_vlog(vports[i], KERN_ERR,
2876 "Fabric support\n");
2880 lpfc_destroy_vport_work_array(phba, vports);
2884 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2886 struct lpfc_dmabuf *dmabuf = mboxq->context1;
2887 struct lpfc_vport *vport = mboxq->vport;
2888 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2891 * VFI not supported for interface type 0, so ignore any mailbox
2892 * error (except VFI in use) and continue with the discovery.
2894 if (mboxq->u.mb.mbxStatus &&
2895 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2896 LPFC_SLI_INTF_IF_TYPE_0) &&
2897 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2898 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2899 "2018 REG_VFI mbxStatus error x%x "
2901 mboxq->u.mb.mbxStatus, vport->port_state);
2902 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2903 /* FLOGI failed, use loop map to make discovery list */
2904 lpfc_disc_list_loopmap(vport);
2905 /* Start discovery */
2906 lpfc_disc_start(vport);
2909 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2913 /* If the VFI is already registered, there is nothing else to do
2914 * Unless this was a VFI update and we are in PT2PT mode, then
2915 * we should drop through to set the port state to ready.
2917 if (vport->fc_flag & FC_VFI_REGISTERED)
2918 if (!(phba->sli_rev == LPFC_SLI_REV4 &&
2919 vport->fc_flag & FC_PT2PT))
2922 /* The VPI is implicitly registered when the VFI is registered */
2923 spin_lock_irq(shost->host_lock);
2924 vport->vpi_state |= LPFC_VPI_REGISTERED;
2925 vport->fc_flag |= FC_VFI_REGISTERED;
2926 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2927 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
2928 spin_unlock_irq(shost->host_lock);
2930 /* In case SLI4 FC loopback test, we are ready */
2931 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2932 (phba->link_flag & LS_LOOPBACK_MODE)) {
2933 phba->link_state = LPFC_HBA_READY;
2937 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2938 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
2939 "alpacnt:%d LinkState:%x topology:%x\n",
2940 vport->port_state, vport->fc_flag, vport->fc_myDID,
2941 vport->phba->alpa_map[0],
2942 phba->link_state, phba->fc_topology);
2944 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
2946 * For private loop or for NPort pt2pt,
2947 * just start discovery and we are done.
2949 if ((vport->fc_flag & FC_PT2PT) ||
2950 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
2951 !(vport->fc_flag & FC_PUBLIC_LOOP))) {
2953 /* Use loop map to make discovery list */
2954 lpfc_disc_list_loopmap(vport);
2955 /* Start discovery */
2956 if (vport->fc_flag & FC_PT2PT)
2957 vport->port_state = LPFC_VPORT_READY;
2959 lpfc_disc_start(vport);
2961 lpfc_start_fdiscs(phba);
2962 lpfc_do_scr_ns_plogi(phba, vport);
2967 mempool_free(mboxq, phba->mbox_mem_pool);
2969 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
2976 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2978 MAILBOX_t *mb = &pmb->u.mb;
2979 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
2980 struct lpfc_vport *vport = pmb->vport;
2981 struct serv_parm *sp = &vport->fc_sparam;
2984 /* Check for error */
2985 if (mb->mbxStatus) {
2986 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
2987 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2988 "0319 READ_SPARAM mbxStatus error x%x "
2990 mb->mbxStatus, vport->port_state);
2991 lpfc_linkdown(phba);
2995 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
2996 sizeof (struct serv_parm));
2998 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
2999 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
3000 ed_tov = (ed_tov + 999999) / 1000000;
3002 phba->fc_edtov = ed_tov;
3003 phba->fc_ratov = (2 * ed_tov) / 1000;
3004 if (phba->fc_ratov < FF_DEF_RATOV) {
3005 /* RA_TOV should be atleast 10sec for initial flogi */
3006 phba->fc_ratov = FF_DEF_RATOV;
3009 lpfc_update_vport_wwn(vport);
3010 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3011 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
3012 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
3015 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3017 mempool_free(pmb, phba->mbox_mem_pool);
3021 pmb->context1 = NULL;
3022 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3024 lpfc_issue_clear_la(phba, vport);
3025 mempool_free(pmb, phba->mbox_mem_pool);
3030 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
3032 struct lpfc_vport *vport = phba->pport;
3033 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
3034 struct Scsi_Host *shost;
3036 struct lpfc_dmabuf *mp;
3038 struct fcf_record *fcf_record;
3039 uint32_t fc_flags = 0;
3041 spin_lock_irq(&phba->hbalock);
3042 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
3043 case LPFC_LINK_SPEED_1GHZ:
3044 case LPFC_LINK_SPEED_2GHZ:
3045 case LPFC_LINK_SPEED_4GHZ:
3046 case LPFC_LINK_SPEED_8GHZ:
3047 case LPFC_LINK_SPEED_10GHZ:
3048 case LPFC_LINK_SPEED_16GHZ:
3049 case LPFC_LINK_SPEED_32GHZ:
3050 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
3053 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
3057 if (phba->fc_topology &&
3058 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {
3059 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3060 "3314 Toplogy changed was 0x%x is 0x%x\n",
3062 bf_get(lpfc_mbx_read_top_topology, la));
3063 phba->fc_topology_changed = 1;
3066 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
3067 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
3069 shost = lpfc_shost_from_vport(vport);
3070 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3071 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
3073 /* if npiv is enabled and this adapter supports npiv log
3074 * a message that npiv is not supported in this topology
3076 if (phba->cfg_enable_npiv && phba->max_vpi)
3077 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3078 "1309 Link Up Event npiv not supported in loop "
3080 /* Get Loop Map information */
3081 if (bf_get(lpfc_mbx_read_top_il, la))
3082 fc_flags |= FC_LBIT;
3084 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
3085 i = la->lilpBde64.tus.f.bdeSize;
3088 phba->alpa_map[0] = 0;
3090 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
3101 numalpa = phba->alpa_map[0];
3103 while (j < numalpa) {
3104 memset(un.pamap, 0, 16);
3105 for (k = 1; j < numalpa; k++) {
3107 phba->alpa_map[j + 1];
3112 /* Link Up Event ALPA map */
3113 lpfc_printf_log(phba,
3116 "1304 Link Up Event "
3117 "ALPA map Data: x%x "
3119 un.pa.wd1, un.pa.wd2,
3120 un.pa.wd3, un.pa.wd4);
3125 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
3126 if (phba->max_vpi && phba->cfg_enable_npiv &&
3127 (phba->sli_rev >= LPFC_SLI_REV3))
3128 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3130 vport->fc_myDID = phba->fc_pref_DID;
3131 fc_flags |= FC_LBIT;
3133 spin_unlock_irq(&phba->hbalock);
3136 spin_lock_irq(shost->host_lock);
3137 vport->fc_flag |= fc_flags;
3138 spin_unlock_irq(shost->host_lock);
3142 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3146 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
3148 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3151 sparam_mbox->vport = vport;
3152 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
3153 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
3154 if (rc == MBX_NOT_FINISHED) {
3155 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
3156 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3158 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3162 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3163 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3166 vport->port_state = LPFC_LOCAL_CFG_LINK;
3167 lpfc_config_link(phba, cfglink_mbox);
3168 cfglink_mbox->vport = vport;
3169 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
3170 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
3171 if (rc == MBX_NOT_FINISHED) {
3172 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
3176 vport->port_state = LPFC_VPORT_UNKNOWN;
3178 * Add the driver's default FCF record at FCF index 0 now. This
3179 * is phase 1 implementation that support FCF index 0 and driver
3182 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
3183 fcf_record = kzalloc(sizeof(struct fcf_record),
3185 if (unlikely(!fcf_record)) {
3186 lpfc_printf_log(phba, KERN_ERR,
3188 "2554 Could not allocate memory for "
3194 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
3195 LPFC_FCOE_FCF_DEF_INDEX);
3196 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
3198 lpfc_printf_log(phba, KERN_ERR,
3200 "2013 Could not manually add FCF "
3201 "record 0, status %d\n", rc);
3209 * The driver is expected to do FIP/FCF. Call the port
3210 * and get the FCF Table.
3212 spin_lock_irq(&phba->hbalock);
3213 if (phba->hba_flag & FCF_TS_INPROG) {
3214 spin_unlock_irq(&phba->hbalock);
3217 /* This is the initial FCF discovery scan */
3218 phba->fcf.fcf_flag |= FCF_INIT_DISC;
3219 spin_unlock_irq(&phba->hbalock);
3220 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3221 "2778 Start FCF table scan at linkup\n");
3222 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3223 LPFC_FCOE_FCF_GET_FIRST);
3225 spin_lock_irq(&phba->hbalock);
3226 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
3227 spin_unlock_irq(&phba->hbalock);
3230 /* Reset FCF roundrobin bmask for new discovery */
3231 lpfc_sli4_clear_fcf_rr_bmask(phba);
3236 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3237 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3238 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
3239 vport->port_state, sparam_mbox, cfglink_mbox);
3240 lpfc_issue_clear_la(phba, vport);
3245 lpfc_enable_la(struct lpfc_hba *phba)
3248 struct lpfc_sli *psli = &phba->sli;
3249 spin_lock_irq(&phba->hbalock);
3250 psli->sli_flag |= LPFC_PROCESS_LA;
3251 if (phba->sli_rev <= LPFC_SLI_REV3) {
3252 control = readl(phba->HCregaddr);
3253 control |= HC_LAINT_ENA;
3254 writel(control, phba->HCregaddr);
3255 readl(phba->HCregaddr); /* flush */
3257 spin_unlock_irq(&phba->hbalock);
3261 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
3263 lpfc_linkdown(phba);
3264 lpfc_enable_la(phba);
3265 lpfc_unregister_unused_fcf(phba);
3266 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3271 * This routine handles processing a READ_TOPOLOGY mailbox
3272 * command upon completion. It is setup in the LPFC_MBOXQ
3273 * as the completion routine when the command is
3274 * handed off to the SLI layer.
3277 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3279 struct lpfc_vport *vport = pmb->vport;
3280 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3281 struct lpfc_mbx_read_top *la;
3282 MAILBOX_t *mb = &pmb->u.mb;
3283 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3285 /* Unblock ELS traffic */
3286 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
3287 /* Check for error */
3288 if (mb->mbxStatus) {
3289 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3290 "1307 READ_LA mbox error x%x state x%x\n",
3291 mb->mbxStatus, vport->port_state);
3292 lpfc_mbx_issue_link_down(phba);
3293 phba->link_state = LPFC_HBA_ERROR;
3294 goto lpfc_mbx_cmpl_read_topology_free_mbuf;
3297 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3299 memcpy(&phba->alpa_map[0], mp->virt, 128);
3301 spin_lock_irq(shost->host_lock);
3302 if (bf_get(lpfc_mbx_read_top_pb, la))
3303 vport->fc_flag |= FC_BYPASSED_MODE;
3305 vport->fc_flag &= ~FC_BYPASSED_MODE;
3306 spin_unlock_irq(shost->host_lock);
3308 if (phba->fc_eventTag <= la->eventTag) {
3309 phba->fc_stat.LinkMultiEvent++;
3310 if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP)
3311 if (phba->fc_eventTag != 0)
3312 lpfc_linkdown(phba);
3315 phba->fc_eventTag = la->eventTag;
3316 if (phba->sli_rev < LPFC_SLI_REV4) {
3317 spin_lock_irq(&phba->hbalock);
3318 if (bf_get(lpfc_mbx_read_top_mm, la))
3319 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
3321 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
3322 spin_unlock_irq(&phba->hbalock);
3325 phba->link_events++;
3326 if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) &&
3327 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) {
3328 phba->fc_stat.LinkUp++;
3329 if (phba->link_flag & LS_LOOPBACK_MODE) {
3330 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3331 "1306 Link Up Event in loop back mode "
3332 "x%x received Data: x%x x%x x%x x%x\n",
3333 la->eventTag, phba->fc_eventTag,
3334 bf_get(lpfc_mbx_read_top_alpa_granted,
3336 bf_get(lpfc_mbx_read_top_link_spd, la),
3339 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3340 "1303 Link Up Event x%x received "
3341 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3342 la->eventTag, phba->fc_eventTag,
3343 bf_get(lpfc_mbx_read_top_alpa_granted,
3345 bf_get(lpfc_mbx_read_top_link_spd, la),
3347 bf_get(lpfc_mbx_read_top_mm, la),
3348 bf_get(lpfc_mbx_read_top_fa, la),
3349 phba->wait_4_mlo_maint_flg);
3351 lpfc_mbx_process_link_up(phba, la);
3352 } else if (bf_get(lpfc_mbx_read_top_att_type, la) ==
3353 LPFC_ATT_LINK_DOWN) {
3354 phba->fc_stat.LinkDown++;
3355 if (phba->link_flag & LS_LOOPBACK_MODE)
3356 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3357 "1308 Link Down Event in loop back mode "
3359 "Data: x%x x%x x%x\n",
3360 la->eventTag, phba->fc_eventTag,
3361 phba->pport->port_state, vport->fc_flag);
3363 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3364 "1305 Link Down Event x%x received "
3365 "Data: x%x x%x x%x x%x x%x\n",
3366 la->eventTag, phba->fc_eventTag,
3367 phba->pport->port_state, vport->fc_flag,
3368 bf_get(lpfc_mbx_read_top_mm, la),
3369 bf_get(lpfc_mbx_read_top_fa, la));
3370 lpfc_mbx_issue_link_down(phba);
3372 if ((phba->sli.sli_flag & LPFC_MENLO_MAINT) &&
3373 ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP))) {
3374 if (phba->link_state != LPFC_LINK_DOWN) {
3375 phba->fc_stat.LinkDown++;
3376 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3377 "1312 Link Down Event x%x received "
3378 "Data: x%x x%x x%x\n",
3379 la->eventTag, phba->fc_eventTag,
3380 phba->pport->port_state, vport->fc_flag);
3381 lpfc_mbx_issue_link_down(phba);
3383 lpfc_enable_la(phba);
3385 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3386 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3387 "Data: x%x x%x x%x\n",
3388 la->eventTag, phba->fc_eventTag,
3389 phba->pport->port_state, vport->fc_flag);
3391 * The cmnd that triggered this will be waiting for this
3394 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3395 if (phba->wait_4_mlo_maint_flg) {
3396 phba->wait_4_mlo_maint_flg = 0;
3397 wake_up_interruptible(&phba->wait_4_mlo_m_q);
3401 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3402 bf_get(lpfc_mbx_read_top_fa, la)) {
3403 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
3404 lpfc_issue_clear_la(phba, vport);
3405 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3407 bf_get(lpfc_mbx_read_top_fa, la));
3410 lpfc_mbx_cmpl_read_topology_free_mbuf:
3411 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3413 mempool_free(pmb, phba->mbox_mem_pool);
3418 * This routine handles processing a REG_LOGIN mailbox
3419 * command upon completion. It is setup in the LPFC_MBOXQ
3420 * as the completion routine when the command is
3421 * handed off to the SLI layer.
3424 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3426 struct lpfc_vport *vport = pmb->vport;
3427 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3428 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3429 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3431 pmb->context1 = NULL;
3432 pmb->context2 = NULL;
3434 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3435 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n",
3436 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3437 atomic_read(&ndlp->kref.refcount),
3438 ndlp->nlp_usg_map, ndlp);
3439 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
3440 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3442 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
3443 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
3444 /* We rcvd a rscn after issuing this
3445 * mbox reg login, we may have cycled
3446 * back through the state and be
3447 * back at reg login state so this
3448 * mbox needs to be ignored becase
3449 * there is another reg login in
3452 spin_lock_irq(shost->host_lock);
3453 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
3454 spin_unlock_irq(shost->host_lock);
3457 /* Call state machine */
3458 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
3460 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3462 mempool_free(pmb, phba->mbox_mem_pool);
3463 /* decrement the node reference count held for this callback
3472 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3474 MAILBOX_t *mb = &pmb->u.mb;
3475 struct lpfc_vport *vport = pmb->vport;
3476 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3478 switch (mb->mbxStatus) {
3481 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3482 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3485 /* If VPI is busy, reset the HBA */
3487 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3488 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3489 vport->vpi, mb->mbxStatus);
3490 if (!(phba->pport->load_flag & FC_UNLOADING))
3491 lpfc_workq_post_event(phba, NULL, NULL,
3492 LPFC_EVT_RESET_HBA);
3494 spin_lock_irq(shost->host_lock);
3495 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
3496 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3497 spin_unlock_irq(shost->host_lock);
3498 vport->unreg_vpi_cmpl = VPORT_OK;
3499 mempool_free(pmb, phba->mbox_mem_pool);
3500 lpfc_cleanup_vports_rrqs(vport, NULL);
3502 * This shost reference might have been taken at the beginning of
3503 * lpfc_vport_delete()
3505 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
3506 scsi_host_put(shost);
3510 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
3512 struct lpfc_hba *phba = vport->phba;
3516 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3520 lpfc_unreg_vpi(phba, vport->vpi, mbox);
3521 mbox->vport = vport;
3522 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
3523 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3524 if (rc == MBX_NOT_FINISHED) {
3525 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3526 "1800 Could not issue unreg_vpi\n");
3527 mempool_free(mbox, phba->mbox_mem_pool);
3528 vport->unreg_vpi_cmpl = VPORT_ERROR;
3535 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3537 struct lpfc_vport *vport = pmb->vport;
3538 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3539 MAILBOX_t *mb = &pmb->u.mb;
3541 switch (mb->mbxStatus) {
3545 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3546 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3548 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3549 spin_lock_irq(shost->host_lock);
3550 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
3551 spin_unlock_irq(shost->host_lock);
3552 vport->fc_myDID = 0;
3556 spin_lock_irq(shost->host_lock);
3557 vport->vpi_state |= LPFC_VPI_REGISTERED;
3558 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
3559 spin_unlock_irq(shost->host_lock);
3560 vport->num_disc_nodes = 0;
3561 /* go thru NPR list and issue ELS PLOGIs */
3562 if (vport->fc_npr_cnt)
3563 lpfc_els_disc_plogi(vport);
3565 if (!vport->num_disc_nodes) {
3566 spin_lock_irq(shost->host_lock);
3567 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3568 spin_unlock_irq(shost->host_lock);
3569 lpfc_can_disctmo(vport);
3571 vport->port_state = LPFC_VPORT_READY;
3574 mempool_free(pmb, phba->mbox_mem_pool);
3579 * lpfc_create_static_vport - Read HBA config region to create static vports.
3580 * @phba: pointer to lpfc hba data structure.
3582 * This routine issue a DUMP mailbox command for config region 22 to get
3583 * the list of static vports to be created. The function create vports
3584 * based on the information returned from the HBA.
3587 lpfc_create_static_vport(struct lpfc_hba *phba)
3589 LPFC_MBOXQ_t *pmb = NULL;
3591 struct static_vport_info *vport_info;
3592 int mbx_wait_rc = 0, i;
3593 struct fc_vport_identifiers vport_id;
3594 struct fc_vport *new_fc_vport;
3595 struct Scsi_Host *shost;
3596 struct lpfc_vport *vport;
3597 uint16_t offset = 0;
3598 uint8_t *vport_buff;
3599 struct lpfc_dmabuf *mp;
3600 uint32_t byte_count = 0;
3602 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3605 "0542 lpfc_create_static_vport failed to"
3606 " allocate mailbox memory\n");
3609 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
3612 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
3614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3615 "0543 lpfc_create_static_vport failed to"
3616 " allocate vport_info\n");
3617 mempool_free(pmb, phba->mbox_mem_pool);
3621 vport_buff = (uint8_t *) vport_info;
3623 /* free dma buffer from previous round */
3624 if (pmb->context1) {
3625 mp = (struct lpfc_dmabuf *)pmb->context1;
3626 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3629 if (lpfc_dump_static_vport(phba, pmb, offset))
3632 pmb->vport = phba->pport;
3633 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,
3636 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {
3637 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3638 "0544 lpfc_create_static_vport failed to"
3639 " issue dump mailbox command ret 0x%x "
3641 mbx_wait_rc, mb->mbxStatus);
3645 if (phba->sli_rev == LPFC_SLI_REV4) {
3646 byte_count = pmb->u.mqe.un.mb_words[5];
3647 mp = (struct lpfc_dmabuf *)pmb->context1;
3648 if (byte_count > sizeof(struct static_vport_info) -
3650 byte_count = sizeof(struct static_vport_info)
3652 memcpy(vport_buff + offset, mp->virt, byte_count);
3653 offset += byte_count;
3655 if (mb->un.varDmp.word_cnt >
3656 sizeof(struct static_vport_info) - offset)
3657 mb->un.varDmp.word_cnt =
3658 sizeof(struct static_vport_info)
3660 byte_count = mb->un.varDmp.word_cnt;
3661 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
3662 vport_buff + offset,
3665 offset += byte_count;
3668 } while (byte_count &&
3669 offset < sizeof(struct static_vport_info));
3672 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
3673 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
3674 != VPORT_INFO_REV)) {
3675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3676 "0545 lpfc_create_static_vport bad"
3677 " information header 0x%x 0x%x\n",
3678 le32_to_cpu(vport_info->signature),
3679 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
3684 shost = lpfc_shost_from_vport(phba->pport);
3686 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
3687 memset(&vport_id, 0, sizeof(vport_id));
3688 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
3689 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
3690 if (!vport_id.port_name || !vport_id.node_name)
3693 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
3694 vport_id.vport_type = FC_PORTTYPE_NPIV;
3695 vport_id.disable = false;
3696 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
3698 if (!new_fc_vport) {
3699 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3700 "0546 lpfc_create_static_vport failed to"
3705 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
3706 vport->vport_flag |= STATIC_VPORT;
3711 if (mbx_wait_rc != MBX_TIMEOUT) {
3712 if (pmb->context1) {
3713 mp = (struct lpfc_dmabuf *)pmb->context1;
3714 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3717 mempool_free(pmb, phba->mbox_mem_pool);
3724 * This routine handles processing a Fabric REG_LOGIN mailbox
3725 * command upon completion. It is setup in the LPFC_MBOXQ
3726 * as the completion routine when the command is
3727 * handed off to the SLI layer.
3730 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3732 struct lpfc_vport *vport = pmb->vport;
3733 MAILBOX_t *mb = &pmb->u.mb;
3734 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3735 struct lpfc_nodelist *ndlp;
3736 struct Scsi_Host *shost;
3738 ndlp = (struct lpfc_nodelist *) pmb->context2;
3739 pmb->context1 = NULL;
3740 pmb->context2 = NULL;
3742 if (mb->mbxStatus) {
3743 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3744 "0258 Register Fabric login error: 0x%x\n",
3746 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3748 mempool_free(pmb, phba->mbox_mem_pool);
3750 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3751 /* FLOGI failed, use loop map to make discovery list */
3752 lpfc_disc_list_loopmap(vport);
3754 /* Start discovery */
3755 lpfc_disc_start(vport);
3756 /* Decrement the reference count to ndlp after the
3757 * reference to the ndlp are done.
3763 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3764 /* Decrement the reference count to ndlp after the reference
3765 * to the ndlp are done.
3771 if (phba->sli_rev < LPFC_SLI_REV4)
3772 ndlp->nlp_rpi = mb->un.varWords[0];
3773 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3774 ndlp->nlp_type |= NLP_FABRIC;
3775 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3777 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3778 /* when physical port receive logo donot start
3779 * vport discovery */
3780 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
3781 lpfc_start_fdiscs(phba);
3783 shost = lpfc_shost_from_vport(vport);
3784 spin_lock_irq(shost->host_lock);
3785 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
3786 spin_unlock_irq(shost->host_lock);
3788 lpfc_do_scr_ns_plogi(phba, vport);
3791 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3793 mempool_free(pmb, phba->mbox_mem_pool);
3795 /* Drop the reference count from the mbox at the end after
3796 * all the current reference to the ndlp have been done.
3803 * This routine handles processing a NameServer REG_LOGIN mailbox
3804 * command upon completion. It is setup in the LPFC_MBOXQ
3805 * as the completion routine when the command is
3806 * handed off to the SLI layer.
3809 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3811 MAILBOX_t *mb = &pmb->u.mb;
3812 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3813 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3814 struct lpfc_vport *vport = pmb->vport;
3816 pmb->context1 = NULL;
3817 pmb->context2 = NULL;
3819 if (mb->mbxStatus) {
3821 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3822 "0260 Register NameServer error: 0x%x\n",
3824 /* decrement the node reference count held for this
3825 * callback function.
3828 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3830 mempool_free(pmb, phba->mbox_mem_pool);
3832 /* If no other thread is using the ndlp, free it */
3833 lpfc_nlp_not_used(ndlp);
3835 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3837 * RegLogin failed, use loop map to make discovery
3840 lpfc_disc_list_loopmap(vport);
3842 /* Start discovery */
3843 lpfc_disc_start(vport);
3846 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3850 if (phba->sli_rev < LPFC_SLI_REV4)
3851 ndlp->nlp_rpi = mb->un.varWords[0];
3852 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3853 ndlp->nlp_type |= NLP_FABRIC;
3854 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3855 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3856 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n",
3857 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3858 atomic_read(&ndlp->kref.refcount),
3859 ndlp->nlp_usg_map, ndlp);
3861 if (vport->port_state < LPFC_VPORT_READY) {
3862 /* Link up discovery requires Fabric registration. */
3863 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
3864 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
3865 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
3866 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
3867 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0);
3869 /* Issue SCR just before NameServer GID_FT Query */
3870 lpfc_issue_els_scr(vport, SCR_DID, 0);
3873 vport->fc_ns_retry = 0;
3874 /* Good status, issue CT Request to NameServer */
3875 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
3876 /* Cannot issue NameServer Query, so finish up discovery */
3880 /* decrement the node reference count held for this
3881 * callback function.
3884 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3886 mempool_free(pmb, phba->mbox_mem_pool);
3892 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3894 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3895 struct fc_rport *rport;
3896 struct lpfc_rport_data *rdata;
3897 struct fc_rport_identifiers rport_ids;
3898 struct lpfc_hba *phba = vport->phba;
3900 /* Remote port has reappeared. Re-register w/ FC transport */
3901 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
3902 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
3903 rport_ids.port_id = ndlp->nlp_DID;
3904 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
3907 * We leave our node pointer in rport->dd_data when we unregister a
3908 * FCP target port. But fc_remote_port_add zeros the space to which
3909 * rport->dd_data points. So, if we're reusing a previously
3910 * registered port, drop the reference that we took the last time we
3911 * registered the port.
3913 rport = ndlp->rport;
3915 rdata = rport->dd_data;
3916 /* break the link before dropping the ref */
3918 if (rdata && rdata->pnode == ndlp)
3920 rdata->pnode = NULL;
3921 /* drop reference for earlier registeration */
3922 put_device(&rport->dev);
3925 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
3926 "rport add: did:x%x flg:x%x type x%x",
3927 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3929 /* Don't add the remote port if unloading. */
3930 if (vport->load_flag & FC_UNLOADING)
3933 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
3934 if (!rport || !get_device(&rport->dev)) {
3935 dev_printk(KERN_WARNING, &phba->pcidev->dev,
3936 "Warning: fc_remote_port_add failed\n");
3940 /* initialize static port data */
3941 rport->maxframe_size = ndlp->nlp_maxframe;
3942 rport->supported_classes = ndlp->nlp_class_sup;
3943 rdata = rport->dd_data;
3944 rdata->pnode = lpfc_nlp_get(ndlp);
3946 if (ndlp->nlp_type & NLP_FCP_TARGET)
3947 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
3948 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
3949 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
3951 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
3952 fc_remote_port_rolechg(rport, rport_ids.roles);
3954 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3955 "3183 rport register x%06x, rport %p role x%x\n",
3956 ndlp->nlp_DID, rport, rport_ids.roles);
3958 if ((rport->scsi_target_id != -1) &&
3959 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
3960 ndlp->nlp_sid = rport->scsi_target_id;
3966 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
3968 struct fc_rport *rport = ndlp->rport;
3970 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
3971 "rport delete: did:x%x flg:x%x type x%x",
3972 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3974 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3975 "3184 rport unregister x%06x, rport %p\n",
3976 ndlp->nlp_DID, rport);
3978 fc_remote_port_delete(rport);
3984 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
3986 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3988 spin_lock_irq(shost->host_lock);
3990 case NLP_STE_UNUSED_NODE:
3991 vport->fc_unused_cnt += count;
3993 case NLP_STE_PLOGI_ISSUE:
3994 vport->fc_plogi_cnt += count;
3996 case NLP_STE_ADISC_ISSUE:
3997 vport->fc_adisc_cnt += count;
3999 case NLP_STE_REG_LOGIN_ISSUE:
4000 vport->fc_reglogin_cnt += count;
4002 case NLP_STE_PRLI_ISSUE:
4003 vport->fc_prli_cnt += count;
4005 case NLP_STE_UNMAPPED_NODE:
4006 vport->fc_unmap_cnt += count;
4008 case NLP_STE_MAPPED_NODE:
4009 vport->fc_map_cnt += count;
4011 case NLP_STE_NPR_NODE:
4012 if (vport->fc_npr_cnt == 0 && count == -1)
4013 vport->fc_npr_cnt = 0;
4015 vport->fc_npr_cnt += count;
4018 spin_unlock_irq(shost->host_lock);
4022 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4023 int old_state, int new_state)
4025 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4027 if (new_state == NLP_STE_UNMAPPED_NODE) {
4028 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4029 ndlp->nlp_type |= NLP_FC_NODE;
4031 if (new_state == NLP_STE_MAPPED_NODE)
4032 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4033 if (new_state == NLP_STE_NPR_NODE)
4034 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
4036 /* Transport interface */
4037 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
4038 old_state == NLP_STE_UNMAPPED_NODE)) {
4039 vport->phba->nport_event_cnt++;
4040 lpfc_unregister_remote_port(ndlp);
4043 if (new_state == NLP_STE_MAPPED_NODE ||
4044 new_state == NLP_STE_UNMAPPED_NODE) {
4045 vport->phba->nport_event_cnt++;
4047 * Tell the fc transport about the port, if we haven't
4048 * already. If we have, and it's a scsi entity, be
4049 * sure to unblock any attached scsi devices
4051 lpfc_register_remote_port(vport, ndlp);
4053 if ((new_state == NLP_STE_MAPPED_NODE) &&
4054 (vport->stat_data_enabled)) {
4056 * A new target is discovered, if there is no buffer for
4057 * statistical data collection allocate buffer.
4059 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
4060 sizeof(struct lpfc_scsicmd_bkt),
4063 if (!ndlp->lat_data)
4064 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
4065 "0286 lpfc_nlp_state_cleanup failed to "
4066 "allocate statistical data buffer DID "
4067 "0x%x\n", ndlp->nlp_DID);
4070 * if we added to Mapped list, but the remote port
4071 * registration failed or assigned a target id outside
4072 * our presentable range - move the node to the
4075 if (new_state == NLP_STE_MAPPED_NODE &&
4077 ndlp->rport->scsi_target_id == -1 ||
4078 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
4079 spin_lock_irq(shost->host_lock);
4080 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
4081 spin_unlock_irq(shost->host_lock);
4082 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4087 lpfc_nlp_state_name(char *buffer, size_t size, int state)
4089 static char *states[] = {
4090 [NLP_STE_UNUSED_NODE] = "UNUSED",
4091 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
4092 [NLP_STE_ADISC_ISSUE] = "ADISC",
4093 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
4094 [NLP_STE_PRLI_ISSUE] = "PRLI",
4095 [NLP_STE_LOGO_ISSUE] = "LOGO",
4096 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
4097 [NLP_STE_MAPPED_NODE] = "MAPPED",
4098 [NLP_STE_NPR_NODE] = "NPR",
4101 if (state < NLP_STE_MAX_STATE && states[state])
4102 strlcpy(buffer, states[state], size);
4104 snprintf(buffer, size, "unknown (%d)", state);
4109 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4112 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4113 int old_state = ndlp->nlp_state;
4114 char name1[16], name2[16];
4116 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4117 "0904 NPort state transition x%06x, %s -> %s\n",
4119 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
4120 lpfc_nlp_state_name(name2, sizeof(name2), state));
4122 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4123 "node statechg did:x%x old:%d ste:%d",
4124 ndlp->nlp_DID, old_state, state);
4126 if (old_state == NLP_STE_NPR_NODE &&
4127 state != NLP_STE_NPR_NODE)
4128 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4129 if (old_state == NLP_STE_UNMAPPED_NODE) {
4130 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
4131 ndlp->nlp_type &= ~NLP_FC_NODE;
4134 if (list_empty(&ndlp->nlp_listp)) {
4135 spin_lock_irq(shost->host_lock);
4136 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4137 spin_unlock_irq(shost->host_lock);
4138 } else if (old_state)
4139 lpfc_nlp_counters(vport, old_state, -1);
4141 ndlp->nlp_state = state;
4142 lpfc_nlp_counters(vport, state, 1);
4143 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
4147 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4149 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4151 if (list_empty(&ndlp->nlp_listp)) {
4152 spin_lock_irq(shost->host_lock);
4153 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4154 spin_unlock_irq(shost->host_lock);
4159 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4161 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4163 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4164 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4165 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4166 spin_lock_irq(shost->host_lock);
4167 list_del_init(&ndlp->nlp_listp);
4168 spin_unlock_irq(shost->host_lock);
4169 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4170 NLP_STE_UNUSED_NODE);
4174 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4176 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4177 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4178 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4179 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4180 NLP_STE_UNUSED_NODE);
4183 * lpfc_initialize_node - Initialize all fields of node object
4184 * @vport: Pointer to Virtual Port object.
4185 * @ndlp: Pointer to FC node object.
4186 * @did: FC_ID of the node.
4188 * This function is always called when node object need to be initialized.
4189 * It initializes all the fields of the node object. Although the reference
4190 * to phba from @ndlp can be obtained indirectly through it's reference to
4191 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4192 * to the life-span of the @ndlp might go beyond the existence of @vport as
4193 * the final release of ndlp is determined by its reference count. And, the
4194 * operation on @ndlp needs the reference to phba.
4197 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4200 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
4201 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
4202 init_timer(&ndlp->nlp_delayfunc);
4203 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
4204 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
4205 ndlp->nlp_DID = did;
4206 ndlp->vport = vport;
4207 ndlp->phba = vport->phba;
4208 ndlp->nlp_sid = NLP_NO_SID;
4209 kref_init(&ndlp->kref);
4210 NLP_INT_NODE_ACT(ndlp);
4211 atomic_set(&ndlp->cmd_pending, 0);
4212 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4215 struct lpfc_nodelist *
4216 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4219 struct lpfc_hba *phba = vport->phba;
4221 unsigned long flags;
4222 unsigned long *active_rrqs_xri_bitmap = NULL;
4227 spin_lock_irqsave(&phba->ndlp_lock, flags);
4228 /* The ndlp should not be in memory free mode */
4229 if (NLP_CHK_FREE_REQ(ndlp)) {
4230 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4231 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4232 "0277 lpfc_enable_node: ndlp:x%p "
4233 "usgmap:x%x refcnt:%d\n",
4234 (void *)ndlp, ndlp->nlp_usg_map,
4235 atomic_read(&ndlp->kref.refcount));
4238 /* The ndlp should not already be in active mode */
4239 if (NLP_CHK_NODE_ACT(ndlp)) {
4240 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4241 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4242 "0278 lpfc_enable_node: ndlp:x%p "
4243 "usgmap:x%x refcnt:%d\n",
4244 (void *)ndlp, ndlp->nlp_usg_map,
4245 atomic_read(&ndlp->kref.refcount));
4249 /* Keep the original DID */
4250 did = ndlp->nlp_DID;
4251 if (phba->sli_rev == LPFC_SLI_REV4)
4252 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap;
4254 /* re-initialize ndlp except of ndlp linked list pointer */
4255 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
4256 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
4257 lpfc_initialize_node(vport, ndlp, did);
4259 if (phba->sli_rev == LPFC_SLI_REV4)
4260 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap;
4262 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4263 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
4264 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba);
4265 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4266 "0008 rpi:%x DID:%x flg:%x refcnt:%d "
4267 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
4269 atomic_read(&ndlp->kref.refcount),
4270 ndlp->nlp_usg_map, ndlp);
4274 if (state != NLP_STE_UNUSED_NODE)
4275 lpfc_nlp_set_state(vport, ndlp, state);
4277 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4278 "node enable: did:x%x",
4279 ndlp->nlp_DID, 0, 0);
4284 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4287 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
4288 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
4289 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4290 * until ALL other outstanding threads have completed. We check
4291 * that the ndlp not already in the UNUSED state before we proceed.
4293 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4295 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
4296 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
4297 lpfc_cleanup_vports_rrqs(vport, ndlp);
4298 lpfc_unreg_rpi(vport, ndlp);
4306 * Start / ReStart rescue timer for Discovery / RSCN handling
4309 lpfc_set_disctmo(struct lpfc_vport *vport)
4311 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4312 struct lpfc_hba *phba = vport->phba;
4315 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
4316 /* For FAN, timeout should be greater than edtov */
4317 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
4319 /* Normal discovery timeout should be > than ELS/CT timeout
4320 * FC spec states we need 3 * ratov for CT requests
4322 tmo = ((phba->fc_ratov * 3) + 3);
4326 if (!timer_pending(&vport->fc_disctmo)) {
4327 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4328 "set disc timer: tmo:x%x state:x%x flg:x%x",
4329 tmo, vport->port_state, vport->fc_flag);
4332 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));
4333 spin_lock_irq(shost->host_lock);
4334 vport->fc_flag |= FC_DISC_TMO;
4335 spin_unlock_irq(shost->host_lock);
4337 /* Start Discovery Timer state <hba_state> */
4338 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4339 "0247 Start Discovery Timer state x%x "
4340 "Data: x%x x%lx x%x x%x\n",
4341 vport->port_state, tmo,
4342 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
4343 vport->fc_adisc_cnt);
4349 * Cancel rescue timer for Discovery / RSCN handling
4352 lpfc_can_disctmo(struct lpfc_vport *vport)
4354 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4355 unsigned long iflags;
4357 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4358 "can disc timer: state:x%x rtry:x%x flg:x%x",
4359 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
4361 /* Turn off discovery timer if its running */
4362 if (vport->fc_flag & FC_DISC_TMO) {
4363 spin_lock_irqsave(shost->host_lock, iflags);
4364 vport->fc_flag &= ~FC_DISC_TMO;
4365 spin_unlock_irqrestore(shost->host_lock, iflags);
4366 del_timer_sync(&vport->fc_disctmo);
4367 spin_lock_irqsave(&vport->work_port_lock, iflags);
4368 vport->work_port_events &= ~WORKER_DISC_TMO;
4369 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
4372 /* Cancel Discovery Timer state <hba_state> */
4373 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4374 "0248 Cancel Discovery Timer state x%x "
4375 "Data: x%x x%x x%x\n",
4376 vport->port_state, vport->fc_flag,
4377 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
4382 * Check specified ring for outstanding IOCB on the SLI queue
4383 * Return true if iocb matches the specified nport
4386 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
4387 struct lpfc_sli_ring *pring,
4388 struct lpfc_iocbq *iocb,
4389 struct lpfc_nodelist *ndlp)
4391 struct lpfc_sli *psli = &phba->sli;
4392 IOCB_t *icmd = &iocb->iocb;
4393 struct lpfc_vport *vport = ndlp->vport;
4395 if (iocb->vport != vport)
4398 if (pring->ringno == LPFC_ELS_RING) {
4399 switch (icmd->ulpCommand) {
4400 case CMD_GEN_REQUEST64_CR:
4401 if (iocb->context_un.ndlp == ndlp)
4403 case CMD_ELS_REQUEST64_CR:
4404 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
4406 case CMD_XMIT_ELS_RSP64_CX:
4407 if (iocb->context1 == (uint8_t *) ndlp)
4410 } else if (pring->ringno == psli->extra_ring) {
4412 } else if (pring->ringno == psli->fcp_ring) {
4413 /* Skip match check if waiting to relogin to FCP target */
4414 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4415 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
4418 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
4421 } else if (pring->ringno == psli->next_ring) {
4428 * Free resources / clean up outstanding I/Os
4429 * associated with nlp_rpi in the LPFC_NODELIST entry.
4432 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
4434 LIST_HEAD(completions);
4435 struct lpfc_sli *psli;
4436 struct lpfc_sli_ring *pring;
4437 struct lpfc_iocbq *iocb, *next_iocb;
4440 lpfc_fabric_abort_nport(ndlp);
4443 * Everything that matches on txcmplq will be returned
4444 * by firmware with a no rpi error.
4447 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4448 /* Now process each ring */
4449 for (i = 0; i < psli->num_rings; i++) {
4450 pring = &psli->ring[i];
4452 spin_lock_irq(&phba->hbalock);
4453 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
4456 * Check to see if iocb matches the nport we are
4459 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
4461 /* It matches, so deque and call compl
4463 list_move_tail(&iocb->list,
4467 spin_unlock_irq(&phba->hbalock);
4471 /* Cancel all the IOCBs from the completions list */
4472 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4479 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
4480 * @phba: Pointer to HBA context object.
4481 * @pmb: Pointer to mailbox object.
4483 * This function will issue an ELS LOGO command after completing
4487 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4489 struct lpfc_vport *vport = pmb->vport;
4490 struct lpfc_nodelist *ndlp;
4492 ndlp = (struct lpfc_nodelist *)(pmb->context1);
4495 lpfc_issue_els_logo(vport, ndlp, 0);
4496 mempool_free(pmb, phba->mbox_mem_pool);
4500 * Free rpi associated with LPFC_NODELIST entry.
4501 * This routine is called from lpfc_freenode(), when we are removing
4502 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4503 * LOGO that completes successfully, and we are waiting to PLOGI back
4504 * to the remote NPort. In addition, it is called after we receive
4505 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4506 * we are waiting to PLOGI back to the remote NPort.
4509 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4511 struct lpfc_hba *phba = vport->phba;
4513 int rc, acc_plogi = 1;
4516 if (ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4517 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) {
4518 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
4519 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
4520 "3366 RPI x%x needs to be "
4521 "unregistered nlp_flag x%x "
4523 ndlp->nlp_rpi, ndlp->nlp_flag,
4525 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4527 /* SLI4 ports require the physical rpi value. */
4528 rpi = ndlp->nlp_rpi;
4529 if (phba->sli_rev == LPFC_SLI_REV4)
4530 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
4532 lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
4533 mbox->vport = vport;
4534 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
4535 mbox->context1 = ndlp;
4536 mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
4538 if (phba->sli_rev == LPFC_SLI_REV4 &&
4539 (!(vport->load_flag & FC_UNLOADING)) &&
4540 (bf_get(lpfc_sli_intf_if_type,
4541 &phba->sli4_hba.sli_intf) ==
4542 LPFC_SLI_INTF_IF_TYPE_2)) {
4543 mbox->context1 = lpfc_nlp_get(ndlp);
4545 lpfc_sli4_unreg_rpi_cmpl_clr;
4547 * accept PLOGIs after unreg_rpi_cmpl
4552 lpfc_sli_def_mbox_cmpl;
4555 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4556 if (rc == MBX_NOT_FINISHED) {
4557 mempool_free(mbox, phba->mbox_mem_pool);
4561 lpfc_no_rpi(phba, ndlp);
4563 if (phba->sli_rev != LPFC_SLI_REV4)
4565 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
4566 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4568 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4571 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4576 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4577 * @phba: pointer to lpfc hba data structure.
4579 * This routine is invoked to unregister all the currently registered RPIs
4583 lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
4585 struct lpfc_vport **vports;
4586 struct lpfc_nodelist *ndlp;
4587 struct Scsi_Host *shost;
4590 vports = lpfc_create_vport_work_array(phba);
4592 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
4593 "2884 Vport array allocation failed \n");
4596 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4597 shost = lpfc_shost_from_vport(vports[i]);
4598 spin_lock_irq(shost->host_lock);
4599 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
4600 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4601 /* The mempool_alloc might sleep */
4602 spin_unlock_irq(shost->host_lock);
4603 lpfc_unreg_rpi(vports[i], ndlp);
4604 spin_lock_irq(shost->host_lock);
4607 spin_unlock_irq(shost->host_lock);
4609 lpfc_destroy_vport_work_array(phba, vports);
4613 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
4615 struct lpfc_hba *phba = vport->phba;
4619 if (phba->sli_rev == LPFC_SLI_REV4) {
4620 lpfc_sli4_unreg_all_rpis(vport);
4624 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4626 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
4628 mbox->vport = vport;
4629 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4630 mbox->context1 = NULL;
4631 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
4632 if (rc != MBX_TIMEOUT)
4633 mempool_free(mbox, phba->mbox_mem_pool);
4635 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4636 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4637 "1836 Could not issue "
4638 "unreg_login(all_rpis) status %d\n", rc);
4643 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
4645 struct lpfc_hba *phba = vport->phba;
4649 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4651 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
4653 mbox->vport = vport;
4654 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4655 mbox->context1 = NULL;
4656 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
4657 if (rc != MBX_TIMEOUT)
4658 mempool_free(mbox, phba->mbox_mem_pool);
4660 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4661 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4662 "1815 Could not issue "
4663 "unreg_did (default rpis) status %d\n",
4669 * Free resources associated with LPFC_NODELIST entry
4670 * so it can be freed.
4673 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4675 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4676 struct lpfc_hba *phba = vport->phba;
4677 LPFC_MBOXQ_t *mb, *nextmb;
4678 struct lpfc_dmabuf *mp;
4680 /* Cleanup node for NPort <nlp_DID> */
4681 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4682 "0900 Cleanup node for NPort x%x "
4683 "Data: x%x x%x x%x\n",
4684 ndlp->nlp_DID, ndlp->nlp_flag,
4685 ndlp->nlp_state, ndlp->nlp_rpi);
4686 if (NLP_CHK_FREE_REQ(ndlp)) {
4687 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4688 "0280 lpfc_cleanup_node: ndlp:x%p "
4689 "usgmap:x%x refcnt:%d\n",
4690 (void *)ndlp, ndlp->nlp_usg_map,
4691 atomic_read(&ndlp->kref.refcount));
4692 lpfc_dequeue_node(vport, ndlp);
4694 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4695 "0281 lpfc_cleanup_node: ndlp:x%p "
4696 "usgmap:x%x refcnt:%d\n",
4697 (void *)ndlp, ndlp->nlp_usg_map,
4698 atomic_read(&ndlp->kref.refcount));
4699 lpfc_disable_node(vport, ndlp);
4703 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
4705 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
4706 if ((mb = phba->sli.mbox_active)) {
4707 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
4708 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
4709 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
4710 mb->context2 = NULL;
4711 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4715 spin_lock_irq(&phba->hbalock);
4716 /* Cleanup REG_LOGIN completions which are not yet processed */
4717 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
4718 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
4719 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
4720 (ndlp != (struct lpfc_nodelist *) mb->context2))
4723 mb->context2 = NULL;
4724 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4727 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
4728 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
4729 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
4730 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
4731 mp = (struct lpfc_dmabuf *) (mb->context1);
4733 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
4736 list_del(&mb->list);
4737 mempool_free(mb, phba->mbox_mem_pool);
4738 /* We shall not invoke the lpfc_nlp_put to decrement
4739 * the ndlp reference count as we are in the process
4740 * of lpfc_nlp_release.
4744 spin_unlock_irq(&phba->hbalock);
4746 lpfc_els_abort(phba, ndlp);
4748 spin_lock_irq(shost->host_lock);
4749 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
4750 spin_unlock_irq(shost->host_lock);
4752 ndlp->nlp_last_elscmd = 0;
4753 del_timer_sync(&ndlp->nlp_delayfunc);
4755 list_del_init(&ndlp->els_retry_evt.evt_listp);
4756 list_del_init(&ndlp->dev_loss_evt.evt_listp);
4757 lpfc_cleanup_vports_rrqs(vport, ndlp);
4758 lpfc_unreg_rpi(vport, ndlp);
4764 * Check to see if we can free the nlp back to the freelist.
4765 * If we are in the middle of using the nlp in the discovery state
4766 * machine, defer the free till we reach the end of the state machine.
4769 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4771 struct lpfc_hba *phba = vport->phba;
4772 struct lpfc_rport_data *rdata;
4773 struct fc_rport *rport;
4777 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4778 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
4779 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
4780 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
4781 /* For this case we need to cleanup the default rpi
4782 * allocated by the firmware.
4784 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4785 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n",
4786 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
4787 atomic_read(&ndlp->kref.refcount),
4788 ndlp->nlp_usg_map, ndlp);
4789 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
4791 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
4792 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi);
4794 mempool_free(mbox, phba->mbox_mem_pool);
4797 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
4798 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
4799 mbox->vport = vport;
4800 mbox->context2 = ndlp;
4801 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4802 if (rc == MBX_NOT_FINISHED) {
4803 mempool_free(mbox, phba->mbox_mem_pool);
4808 lpfc_cleanup_node(vport, ndlp);
4811 * ndlp->rport must be set to NULL before it reaches here
4812 * i.e. break rport/node link before doing lpfc_nlp_put for
4813 * registered rport and then drop the reference of rport.
4817 * extra lpfc_nlp_put dropped the reference of ndlp
4818 * for registered rport so need to cleanup rport
4820 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4821 "0940 removed node x%p DID x%x "
4822 " rport not null %p\n",
4823 ndlp, ndlp->nlp_DID, ndlp->rport);
4824 rport = ndlp->rport;
4825 rdata = rport->dd_data;
4826 rdata->pnode = NULL;
4828 put_device(&rport->dev);
4833 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4836 D_ID mydid, ndlpdid, matchdid;
4838 if (did == Bcast_DID)
4841 /* First check for Direct match */
4842 if (ndlp->nlp_DID == did)
4845 /* Next check for area/domain identically equals 0 match */
4846 mydid.un.word = vport->fc_myDID;
4847 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
4851 matchdid.un.word = did;
4852 ndlpdid.un.word = ndlp->nlp_DID;
4853 if (matchdid.un.b.id == ndlpdid.un.b.id) {
4854 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
4855 (mydid.un.b.area == matchdid.un.b.area)) {
4856 /* This code is supposed to match the ID
4857 * for a private loop device that is
4858 * connect to fl_port. But we need to
4859 * check that the port did not just go
4860 * from pt2pt to fabric or we could end
4861 * up matching ndlp->nlp_DID 000001 to
4862 * fabric DID 0x20101
4864 if ((ndlpdid.un.b.domain == 0) &&
4865 (ndlpdid.un.b.area == 0)) {
4866 if (ndlpdid.un.b.id &&
4867 vport->phba->fc_topology ==
4874 matchdid.un.word = ndlp->nlp_DID;
4875 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
4876 (mydid.un.b.area == ndlpdid.un.b.area)) {
4877 if ((matchdid.un.b.domain == 0) &&
4878 (matchdid.un.b.area == 0)) {
4879 if (matchdid.un.b.id)
4887 /* Search for a nodelist entry */
4888 static struct lpfc_nodelist *
4889 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
4891 struct lpfc_nodelist *ndlp;
4894 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4895 if (lpfc_matchdid(vport, ndlp, did)) {
4896 data1 = (((uint32_t) ndlp->nlp_state << 24) |
4897 ((uint32_t) ndlp->nlp_xri << 16) |
4898 ((uint32_t) ndlp->nlp_type << 8) |
4899 ((uint32_t) ndlp->nlp_rpi & 0xff));
4900 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4901 "0929 FIND node DID "
4902 "Data: x%p x%x x%x x%x %p\n",
4903 ndlp, ndlp->nlp_DID,
4904 ndlp->nlp_flag, data1,
4905 ndlp->active_rrqs_xri_bitmap);
4910 /* FIND node did <did> NOT FOUND */
4911 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4912 "0932 FIND node did x%x NOT FOUND.\n", did);
4916 struct lpfc_nodelist *
4917 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
4919 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4920 struct lpfc_nodelist *ndlp;
4921 unsigned long iflags;
4923 spin_lock_irqsave(shost->host_lock, iflags);
4924 ndlp = __lpfc_findnode_did(vport, did);
4925 spin_unlock_irqrestore(shost->host_lock, iflags);
4929 struct lpfc_nodelist *
4930 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
4932 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4933 struct lpfc_nodelist *ndlp;
4935 ndlp = lpfc_findnode_did(vport, did);
4937 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
4938 lpfc_rscn_payload_check(vport, did) == 0)
4940 ndlp = (struct lpfc_nodelist *)
4941 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
4944 lpfc_nlp_init(vport, ndlp, did);
4945 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4946 spin_lock_irq(shost->host_lock);
4947 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4948 spin_unlock_irq(shost->host_lock);
4950 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4951 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
4954 spin_lock_irq(shost->host_lock);
4955 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4956 spin_unlock_irq(shost->host_lock);
4960 if ((vport->fc_flag & FC_RSCN_MODE) &&
4961 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
4962 if (lpfc_rscn_payload_check(vport, did)) {
4963 /* If we've already received a PLOGI from this NPort
4964 * we don't need to try to discover it again.
4966 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
4969 /* Since this node is marked for discovery,
4970 * delay timeout is not needed.
4972 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4973 spin_lock_irq(shost->host_lock);
4974 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4975 spin_unlock_irq(shost->host_lock);
4979 /* If we've already received a PLOGI from this NPort,
4980 * or we are already in the process of discovery on it,
4981 * we don't need to try to discover it again.
4983 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
4984 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
4985 ndlp->nlp_flag & NLP_RCV_PLOGI)
4987 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4988 spin_lock_irq(shost->host_lock);
4989 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4990 spin_unlock_irq(shost->host_lock);
4995 /* Build a list of nodes to discover based on the loopmap */
4997 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
4999 struct lpfc_hba *phba = vport->phba;
5001 uint32_t alpa, index;
5003 if (!lpfc_is_link_up(phba))
5006 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
5009 /* Check for loop map present or not */
5010 if (phba->alpa_map[0]) {
5011 for (j = 1; j <= phba->alpa_map[0]; j++) {
5012 alpa = phba->alpa_map[j];
5013 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
5015 lpfc_setup_disc_node(vport, alpa);
5018 /* No alpamap, so try all alpa's */
5019 for (j = 0; j < FC_MAXLOOP; j++) {
5020 /* If cfg_scan_down is set, start from highest
5021 * ALPA (0xef) to lowest (0x1).
5023 if (vport->cfg_scan_down)
5026 index = FC_MAXLOOP - j - 1;
5027 alpa = lpfcAlpaArray[index];
5028 if ((vport->fc_myDID & 0xff) == alpa)
5030 lpfc_setup_disc_node(vport, alpa);
5037 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
5040 struct lpfc_sli *psli = &phba->sli;
5041 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
5042 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
5043 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
5047 * if it's not a physical port or if we already send
5048 * clear_la then don't send it.
5050 if ((phba->link_state >= LPFC_CLEAR_LA) ||
5051 (vport->port_type != LPFC_PHYSICAL_PORT) ||
5052 (phba->sli_rev == LPFC_SLI_REV4))
5055 /* Link up discovery */
5056 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
5057 phba->link_state = LPFC_CLEAR_LA;
5058 lpfc_clear_la(phba, mbox);
5059 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
5060 mbox->vport = vport;
5061 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5062 if (rc == MBX_NOT_FINISHED) {
5063 mempool_free(mbox, phba->mbox_mem_pool);
5064 lpfc_disc_flush_list(vport);
5065 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5066 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5067 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5068 phba->link_state = LPFC_HBA_ERROR;
5073 /* Reg_vpi to tell firmware to resume normal operations */
5075 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
5077 LPFC_MBOXQ_t *regvpimbox;
5079 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5081 lpfc_reg_vpi(vport, regvpimbox);
5082 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
5083 regvpimbox->vport = vport;
5084 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
5085 == MBX_NOT_FINISHED) {
5086 mempool_free(regvpimbox, phba->mbox_mem_pool);
5091 /* Start Link up / RSCN discovery on NPR nodes */
5093 lpfc_disc_start(struct lpfc_vport *vport)
5095 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5096 struct lpfc_hba *phba = vport->phba;
5098 uint32_t clear_la_pending;
5100 if (!lpfc_is_link_up(phba)) {
5101 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5102 "3315 Link is not up %x\n",
5107 if (phba->link_state == LPFC_CLEAR_LA)
5108 clear_la_pending = 1;
5110 clear_la_pending = 0;
5112 if (vport->port_state < LPFC_VPORT_READY)
5113 vport->port_state = LPFC_DISC_AUTH;
5115 lpfc_set_disctmo(vport);
5117 vport->fc_prevDID = vport->fc_myDID;
5118 vport->num_disc_nodes = 0;
5120 /* Start Discovery state <hba_state> */
5121 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5122 "0202 Start Discovery hba state x%x "
5123 "Data: x%x x%x x%x\n",
5124 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
5125 vport->fc_adisc_cnt);
5127 /* First do ADISCs - if any */
5128 num_sent = lpfc_els_disc_adisc(vport);
5133 /* Register the VPI for SLI3, NPIV only. */
5134 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5135 !(vport->fc_flag & FC_PT2PT) &&
5136 !(vport->fc_flag & FC_RSCN_MODE) &&
5137 (phba->sli_rev < LPFC_SLI_REV4)) {
5138 lpfc_issue_clear_la(phba, vport);
5139 lpfc_issue_reg_vpi(phba, vport);
5144 * For SLI2, we need to set port_state to READY and continue
5147 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
5148 /* If we get here, there is nothing to ADISC */
5149 lpfc_issue_clear_la(phba, vport);
5151 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
5152 vport->num_disc_nodes = 0;
5153 /* go thru NPR nodes and issue ELS PLOGIs */
5154 if (vport->fc_npr_cnt)
5155 lpfc_els_disc_plogi(vport);
5157 if (!vport->num_disc_nodes) {
5158 spin_lock_irq(shost->host_lock);
5159 vport->fc_flag &= ~FC_NDISC_ACTIVE;
5160 spin_unlock_irq(shost->host_lock);
5161 lpfc_can_disctmo(vport);
5164 vport->port_state = LPFC_VPORT_READY;
5166 /* Next do PLOGIs - if any */
5167 num_sent = lpfc_els_disc_plogi(vport);
5172 if (vport->fc_flag & FC_RSCN_MODE) {
5173 /* Check to see if more RSCNs came in while we
5174 * were processing this one.
5176 if ((vport->fc_rscn_id_cnt == 0) &&
5177 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
5178 spin_lock_irq(shost->host_lock);
5179 vport->fc_flag &= ~FC_RSCN_MODE;
5180 spin_unlock_irq(shost->host_lock);
5181 lpfc_can_disctmo(vport);
5183 lpfc_els_handle_rscn(vport);
5190 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
5191 * ring the match the sppecified nodelist.
5194 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
5196 LIST_HEAD(completions);
5197 struct lpfc_sli *psli;
5199 struct lpfc_iocbq *iocb, *next_iocb;
5200 struct lpfc_sli_ring *pring;
5203 pring = &psli->ring[LPFC_ELS_RING];
5205 /* Error matching iocb on txq or txcmplq
5206 * First check the txq.
5208 spin_lock_irq(&phba->hbalock);
5209 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
5210 if (iocb->context1 != ndlp) {
5214 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
5215 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
5217 list_move_tail(&iocb->list, &completions);
5221 /* Next check the txcmplq */
5222 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
5223 if (iocb->context1 != ndlp) {
5227 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
5228 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
5229 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
5232 spin_unlock_irq(&phba->hbalock);
5234 /* Cancel all the IOCBs from the completions list */
5235 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
5240 lpfc_disc_flush_list(struct lpfc_vport *vport)
5242 struct lpfc_nodelist *ndlp, *next_ndlp;
5243 struct lpfc_hba *phba = vport->phba;
5245 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
5246 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5248 if (!NLP_CHK_NODE_ACT(ndlp))
5250 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5251 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
5252 lpfc_free_tx(phba, ndlp);
5259 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
5261 lpfc_els_flush_rscn(vport);
5262 lpfc_els_flush_cmd(vport);
5263 lpfc_disc_flush_list(vport);
5266 /*****************************************************************************/
5268 * NAME: lpfc_disc_timeout
5270 * FUNCTION: Fibre Channel driver discovery timeout routine.
5272 * EXECUTION ENVIRONMENT: interrupt only
5280 /*****************************************************************************/
5282 lpfc_disc_timeout(unsigned long ptr)
5284 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
5285 struct lpfc_hba *phba = vport->phba;
5286 uint32_t tmo_posted;
5287 unsigned long flags = 0;
5289 if (unlikely(!phba))
5292 spin_lock_irqsave(&vport->work_port_lock, flags);
5293 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
5295 vport->work_port_events |= WORKER_DISC_TMO;
5296 spin_unlock_irqrestore(&vport->work_port_lock, flags);
5299 lpfc_worker_wake_up(phba);
5304 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
5306 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5307 struct lpfc_hba *phba = vport->phba;
5308 struct lpfc_sli *psli = &phba->sli;
5309 struct lpfc_nodelist *ndlp, *next_ndlp;
5310 LPFC_MBOXQ_t *initlinkmbox;
5311 int rc, clrlaerr = 0;
5313 if (!(vport->fc_flag & FC_DISC_TMO))
5316 spin_lock_irq(shost->host_lock);
5317 vport->fc_flag &= ~FC_DISC_TMO;
5318 spin_unlock_irq(shost->host_lock);
5320 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
5321 "disc timeout: state:x%x rtry:x%x flg:x%x",
5322 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
5324 switch (vport->port_state) {
5326 case LPFC_LOCAL_CFG_LINK:
5327 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
5331 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
5332 "0221 FAN timeout\n");
5333 /* Start discovery by sending FLOGI, clean up old rpis */
5334 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5336 if (!NLP_CHK_NODE_ACT(ndlp))
5338 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
5340 if (ndlp->nlp_type & NLP_FABRIC) {
5341 /* Clean up the ndlp on Fabric connections */
5342 lpfc_drop_node(vport, ndlp);
5344 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
5345 /* Fail outstanding IO now since device
5346 * is marked for PLOGI.
5348 lpfc_unreg_rpi(vport, ndlp);
5351 if (vport->port_state != LPFC_FLOGI) {
5352 if (phba->sli_rev <= LPFC_SLI_REV3)
5353 lpfc_initial_flogi(vport);
5355 lpfc_issue_init_vfi(vport);
5362 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
5363 /* Initial FLOGI timeout */
5364 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5365 "0222 Initial %s timeout\n",
5366 vport->vpi ? "FDISC" : "FLOGI");
5368 /* Assume no Fabric and go on with discovery.
5369 * Check for outstanding ELS FLOGI to abort.
5372 /* FLOGI failed, so just use loop map to make discovery list */
5373 lpfc_disc_list_loopmap(vport);
5375 /* Start discovery */
5376 lpfc_disc_start(vport);
5379 case LPFC_FABRIC_CFG_LINK:
5380 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5382 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5383 "0223 Timeout while waiting for "
5384 "NameServer login\n");
5385 /* Next look for NameServer ndlp */
5386 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5387 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
5388 lpfc_els_abort(phba, ndlp);
5390 /* ReStart discovery */
5394 /* Check for wait for NameServer Rsp timeout */
5395 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5396 "0224 NameServer Query timeout "
5398 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5400 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
5401 /* Try it one more time */
5402 vport->fc_ns_retry++;
5403 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
5404 vport->fc_ns_retry, 0);
5408 vport->fc_ns_retry = 0;
5412 * Discovery is over.
5413 * set port_state to PORT_READY if SLI2.
5414 * cmpl_reg_vpi will set port_state to READY for SLI3.
5416 if (phba->sli_rev < LPFC_SLI_REV4) {
5417 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5418 lpfc_issue_reg_vpi(phba, vport);
5420 lpfc_issue_clear_la(phba, vport);
5421 vport->port_state = LPFC_VPORT_READY;
5425 /* Setup and issue mailbox INITIALIZE LINK command */
5426 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5427 if (!initlinkmbox) {
5428 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5429 "0206 Device Discovery "
5430 "completion error\n");
5431 phba->link_state = LPFC_HBA_ERROR;
5435 lpfc_linkdown(phba);
5436 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
5437 phba->cfg_link_speed);
5438 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
5439 initlinkmbox->vport = vport;
5440 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5441 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
5442 lpfc_set_loopback_flag(phba);
5443 if (rc == MBX_NOT_FINISHED)
5444 mempool_free(initlinkmbox, phba->mbox_mem_pool);
5448 case LPFC_DISC_AUTH:
5449 /* Node Authentication timeout */
5450 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5451 "0227 Node Authentication timeout\n");
5452 lpfc_disc_flush_list(vport);
5455 * set port_state to PORT_READY if SLI2.
5456 * cmpl_reg_vpi will set port_state to READY for SLI3.
5458 if (phba->sli_rev < LPFC_SLI_REV4) {
5459 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5460 lpfc_issue_reg_vpi(phba, vport);
5461 else { /* NPIV Not enabled */
5462 lpfc_issue_clear_la(phba, vport);
5463 vport->port_state = LPFC_VPORT_READY;
5468 case LPFC_VPORT_READY:
5469 if (vport->fc_flag & FC_RSCN_MODE) {
5470 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5471 "0231 RSCN timeout Data: x%x "
5473 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5475 /* Cleanup any outstanding ELS commands */
5476 lpfc_els_flush_cmd(vport);
5478 lpfc_els_flush_rscn(vport);
5479 lpfc_disc_flush_list(vport);
5484 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5485 "0273 Unexpected discovery timeout, "
5486 "vport State x%x\n", vport->port_state);
5490 switch (phba->link_state) {
5492 /* CLEAR LA timeout */
5493 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5494 "0228 CLEAR LA timeout\n");
5499 lpfc_issue_clear_la(phba, vport);
5501 case LPFC_LINK_UNKNOWN:
5502 case LPFC_WARM_START:
5503 case LPFC_INIT_START:
5504 case LPFC_INIT_MBX_CMDS:
5505 case LPFC_LINK_DOWN:
5506 case LPFC_HBA_ERROR:
5507 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5508 "0230 Unexpected timeout, hba link "
5509 "state x%x\n", phba->link_state);
5513 case LPFC_HBA_READY:
5518 lpfc_disc_flush_list(vport);
5519 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
5520 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
5521 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
5522 vport->port_state = LPFC_VPORT_READY;
5529 * This routine handles processing a NameServer REG_LOGIN mailbox
5530 * command upon completion. It is setup in the LPFC_MBOXQ
5531 * as the completion routine when the command is
5532 * handed off to the SLI layer.
5535 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5537 MAILBOX_t *mb = &pmb->u.mb;
5538 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
5539 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
5540 struct lpfc_vport *vport = pmb->vport;
5542 pmb->context1 = NULL;
5543 pmb->context2 = NULL;
5545 if (phba->sli_rev < LPFC_SLI_REV4)
5546 ndlp->nlp_rpi = mb->un.varWords[0];
5547 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
5548 ndlp->nlp_type |= NLP_FABRIC;
5549 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
5550 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5551 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n",
5552 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
5553 atomic_read(&ndlp->kref.refcount),
5554 ndlp->nlp_usg_map, ndlp);
5556 * Start issuing Fabric-Device Management Interface (FDMI) command to
5557 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
5558 * fdmi-on=2 (supporting RPA/hostnmae)
5561 if (vport->cfg_fdmi_on & LPFC_FDMI_REG_DELAY)
5562 mod_timer(&vport->fc_fdmitmo,
5563 jiffies + msecs_to_jiffies(1000 * 60));
5565 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
5567 /* decrement the node reference count held for this callback
5571 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5573 mempool_free(pmb, phba->mbox_mem_pool);
5579 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
5581 uint16_t *rpi = param;
5583 /* check for active node */
5584 if (!NLP_CHK_NODE_ACT(ndlp))
5587 return ndlp->nlp_rpi == *rpi;
5591 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
5593 return memcmp(&ndlp->nlp_portname, param,
5594 sizeof(ndlp->nlp_portname)) == 0;
5597 static struct lpfc_nodelist *
5598 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
5600 struct lpfc_nodelist *ndlp;
5602 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5603 if (filter(ndlp, param)) {
5604 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5605 "3185 FIND node filter %p DID "
5606 "Data: x%p x%x x%x\n",
5607 filter, ndlp, ndlp->nlp_DID,
5612 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5613 "3186 FIND node filter %p NOT FOUND.\n", filter);
5618 * This routine looks up the ndlp lists for the given RPI. If rpi found it
5619 * returns the node list element pointer else return NULL.
5621 struct lpfc_nodelist *
5622 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
5624 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
5628 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
5629 * returns the node element list pointer else return NULL.
5631 struct lpfc_nodelist *
5632 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
5634 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5635 struct lpfc_nodelist *ndlp;
5637 spin_lock_irq(shost->host_lock);
5638 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
5639 spin_unlock_irq(shost->host_lock);
5644 * This routine looks up the ndlp lists for the given RPI. If the rpi
5645 * is found, the routine returns the node element list pointer else
5648 struct lpfc_nodelist *
5649 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
5651 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5652 struct lpfc_nodelist *ndlp;
5654 spin_lock_irq(shost->host_lock);
5655 ndlp = __lpfc_findnode_rpi(vport, rpi);
5656 spin_unlock_irq(shost->host_lock);
5661 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
5662 * @phba: pointer to lpfc hba data structure.
5663 * @vpi: the physical host virtual N_Port identifier.
5665 * This routine finds a vport on a HBA (referred by @phba) through a
5666 * @vpi. The function walks the HBA's vport list and returns the address
5667 * of the vport with the matching @vpi.
5670 * NULL - No vport with the matching @vpi found
5671 * Otherwise - Address to the vport with the matching @vpi.
5674 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
5676 struct lpfc_vport *vport;
5677 unsigned long flags;
5680 /* The physical ports are always vpi 0 - translate is unnecessary. */
5683 * Translate the physical vpi to the logical vpi. The
5684 * vport stores the logical vpi.
5686 for (i = 0; i < phba->max_vpi; i++) {
5687 if (vpi == phba->vpi_ids[i])
5691 if (i >= phba->max_vpi) {
5692 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
5693 "2936 Could not find Vport mapped "
5694 "to vpi %d\n", vpi);
5699 spin_lock_irqsave(&phba->hbalock, flags);
5700 list_for_each_entry(vport, &phba->port_list, listentry) {
5701 if (vport->vpi == i) {
5702 spin_unlock_irqrestore(&phba->hbalock, flags);
5706 spin_unlock_irqrestore(&phba->hbalock, flags);
5711 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
5714 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
5716 lpfc_initialize_node(vport, ndlp, did);
5717 INIT_LIST_HEAD(&ndlp->nlp_listp);
5718 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
5719 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba);
5720 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5721 "0007 rpi:%x DID:%x flg:%x refcnt:%d "
5722 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
5724 atomic_read(&ndlp->kref.refcount),
5725 ndlp->nlp_usg_map, ndlp);
5727 ndlp->active_rrqs_xri_bitmap =
5728 mempool_alloc(vport->phba->active_rrq_pool,
5730 if (ndlp->active_rrqs_xri_bitmap)
5731 memset(ndlp->active_rrqs_xri_bitmap, 0,
5732 ndlp->phba->cfg_rrq_xri_bitmap_sz);
5737 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
5738 "node init: did:x%x",
5739 ndlp->nlp_DID, 0, 0);
5744 /* This routine releases all resources associated with a specifc NPort's ndlp
5745 * and mempool_free's the nodelist.
5748 lpfc_nlp_release(struct kref *kref)
5750 struct lpfc_hba *phba;
5751 unsigned long flags;
5752 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
5755 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5756 "node release: did:x%x flg:x%x type:x%x",
5757 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
5759 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
5760 "0279 lpfc_nlp_release: ndlp:x%p did %x "
5761 "usgmap:x%x refcnt:%d rpi:%x\n",
5762 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map,
5763 atomic_read(&ndlp->kref.refcount), ndlp->nlp_rpi);
5765 /* remove ndlp from action. */
5766 lpfc_nlp_remove(ndlp->vport, ndlp);
5768 /* clear the ndlp active flag for all release cases */
5770 spin_lock_irqsave(&phba->ndlp_lock, flags);
5771 NLP_CLR_NODE_ACT(ndlp);
5772 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5773 if (phba->sli_rev == LPFC_SLI_REV4)
5774 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
5776 /* free ndlp memory for final ndlp release */
5777 if (NLP_CHK_FREE_REQ(ndlp)) {
5778 kfree(ndlp->lat_data);
5779 if (phba->sli_rev == LPFC_SLI_REV4)
5780 mempool_free(ndlp->active_rrqs_xri_bitmap,
5781 ndlp->phba->active_rrq_pool);
5782 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
5786 /* This routine bumps the reference count for a ndlp structure to ensure
5787 * that one discovery thread won't free a ndlp while another discovery thread
5790 struct lpfc_nodelist *
5791 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
5793 struct lpfc_hba *phba;
5794 unsigned long flags;
5797 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5798 "node get: did:x%x flg:x%x refcnt:x%x",
5799 ndlp->nlp_DID, ndlp->nlp_flag,
5800 atomic_read(&ndlp->kref.refcount));
5801 /* The check of ndlp usage to prevent incrementing the
5802 * ndlp reference count that is in the process of being
5806 spin_lock_irqsave(&phba->ndlp_lock, flags);
5807 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
5808 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5809 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5810 "0276 lpfc_nlp_get: ndlp:x%p "
5811 "usgmap:x%x refcnt:%d\n",
5812 (void *)ndlp, ndlp->nlp_usg_map,
5813 atomic_read(&ndlp->kref.refcount));
5816 kref_get(&ndlp->kref);
5817 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5822 /* This routine decrements the reference count for a ndlp structure. If the
5823 * count goes to 0, this indicates the the associated nodelist should be
5824 * freed. Returning 1 indicates the ndlp resource has been released; on the
5825 * other hand, returning 0 indicates the ndlp resource has not been released
5829 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
5831 struct lpfc_hba *phba;
5832 unsigned long flags;
5837 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5838 "node put: did:x%x flg:x%x refcnt:x%x",
5839 ndlp->nlp_DID, ndlp->nlp_flag,
5840 atomic_read(&ndlp->kref.refcount));
5842 spin_lock_irqsave(&phba->ndlp_lock, flags);
5843 /* Check the ndlp memory free acknowledge flag to avoid the
5844 * possible race condition that kref_put got invoked again
5845 * after previous one has done ndlp memory free.
5847 if (NLP_CHK_FREE_ACK(ndlp)) {
5848 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5849 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5850 "0274 lpfc_nlp_put: ndlp:x%p "
5851 "usgmap:x%x refcnt:%d\n",
5852 (void *)ndlp, ndlp->nlp_usg_map,
5853 atomic_read(&ndlp->kref.refcount));
5856 /* Check the ndlp inactivate log flag to avoid the possible
5857 * race condition that kref_put got invoked again after ndlp
5858 * is already in inactivating state.
5860 if (NLP_CHK_IACT_REQ(ndlp)) {
5861 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5862 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5863 "0275 lpfc_nlp_put: ndlp:x%p "
5864 "usgmap:x%x refcnt:%d\n",
5865 (void *)ndlp, ndlp->nlp_usg_map,
5866 atomic_read(&ndlp->kref.refcount));
5869 /* For last put, mark the ndlp usage flags to make sure no
5870 * other kref_get and kref_put on the same ndlp shall get
5871 * in between the process when the final kref_put has been
5872 * invoked on this ndlp.
5874 if (atomic_read(&ndlp->kref.refcount) == 1) {
5875 /* Indicate ndlp is put to inactive state. */
5876 NLP_SET_IACT_REQ(ndlp);
5877 /* Acknowledge ndlp memory free has been seen. */
5878 if (NLP_CHK_FREE_REQ(ndlp))
5879 NLP_SET_FREE_ACK(ndlp);
5881 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5882 /* Note, the kref_put returns 1 when decrementing a reference
5883 * count that was 1, it invokes the release callback function,
5884 * but it still left the reference count as 1 (not actually
5885 * performs the last decrementation). Otherwise, it actually
5886 * decrements the reference count and returns 0.
5888 return kref_put(&ndlp->kref, lpfc_nlp_release);
5891 /* This routine free's the specified nodelist if it is not in use
5892 * by any other discovery thread. This routine returns 1 if the
5893 * ndlp has been freed. A return value of 0 indicates the ndlp is
5894 * not yet been released.
5897 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
5899 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5900 "node not used: did:x%x flg:x%x refcnt:x%x",
5901 ndlp->nlp_DID, ndlp->nlp_flag,
5902 atomic_read(&ndlp->kref.refcount));
5903 if (atomic_read(&ndlp->kref.refcount) == 1)
5904 if (lpfc_nlp_put(ndlp))
5910 * lpfc_fcf_inuse - Check if FCF can be unregistered.
5911 * @phba: Pointer to hba context object.
5913 * This function iterate through all FC nodes associated
5914 * will all vports to check if there is any node with
5915 * fc_rports associated with it. If there is an fc_rport
5916 * associated with the node, then the node is either in
5917 * discovered state or its devloss_timer is pending.
5920 lpfc_fcf_inuse(struct lpfc_hba *phba)
5922 struct lpfc_vport **vports;
5924 struct lpfc_nodelist *ndlp;
5925 struct Scsi_Host *shost;
5927 vports = lpfc_create_vport_work_array(phba);
5929 /* If driver cannot allocate memory, indicate fcf is in use */
5933 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
5934 shost = lpfc_shost_from_vport(vports[i]);
5935 spin_lock_irq(shost->host_lock);
5937 * IF the CVL_RCVD bit is not set then we have sent the
5939 * If dev_loss fires while we are waiting we do not want to
5942 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
5943 spin_unlock_irq(shost->host_lock);
5947 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
5948 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
5949 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
5951 spin_unlock_irq(shost->host_lock);
5953 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
5955 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
5956 "2624 RPI %x DID %x flag %x "
5957 "still logged in\n",
5958 ndlp->nlp_rpi, ndlp->nlp_DID,
5962 spin_unlock_irq(shost->host_lock);
5965 lpfc_destroy_vport_work_array(phba, vports);
5970 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
5971 * @phba: Pointer to hba context object.
5972 * @mboxq: Pointer to mailbox object.
5974 * This function frees memory associated with the mailbox command.
5977 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5979 struct lpfc_vport *vport = mboxq->vport;
5980 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5982 if (mboxq->u.mb.mbxStatus) {
5983 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5984 "2555 UNREG_VFI mbxStatus error x%x "
5986 mboxq->u.mb.mbxStatus, vport->port_state);
5988 spin_lock_irq(shost->host_lock);
5989 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
5990 spin_unlock_irq(shost->host_lock);
5991 mempool_free(mboxq, phba->mbox_mem_pool);
5996 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
5997 * @phba: Pointer to hba context object.
5998 * @mboxq: Pointer to mailbox object.
6000 * This function frees memory associated with the mailbox command.
6003 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6005 struct lpfc_vport *vport = mboxq->vport;
6007 if (mboxq->u.mb.mbxStatus) {
6008 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6009 "2550 UNREG_FCFI mbxStatus error x%x "
6011 mboxq->u.mb.mbxStatus, vport->port_state);
6013 mempool_free(mboxq, phba->mbox_mem_pool);
6018 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
6019 * @phba: Pointer to hba context object.
6021 * This function prepare the HBA for unregistering the currently registered
6022 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
6026 lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
6028 struct lpfc_vport **vports;
6029 struct lpfc_nodelist *ndlp;
6030 struct Scsi_Host *shost;
6033 /* Unregister RPIs */
6034 if (lpfc_fcf_inuse(phba))
6035 lpfc_unreg_hba_rpis(phba);
6037 /* At this point, all discovery is aborted */
6038 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
6040 /* Unregister VPIs */
6041 vports = lpfc_create_vport_work_array(phba);
6042 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
6043 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6044 /* Stop FLOGI/FDISC retries */
6045 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
6047 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
6048 lpfc_cleanup_pending_mbox(vports[i]);
6049 if (phba->sli_rev == LPFC_SLI_REV4)
6050 lpfc_sli4_unreg_all_rpis(vports[i]);
6051 lpfc_mbx_unreg_vpi(vports[i]);
6052 shost = lpfc_shost_from_vport(vports[i]);
6053 spin_lock_irq(shost->host_lock);
6054 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6055 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
6056 spin_unlock_irq(shost->host_lock);
6058 lpfc_destroy_vport_work_array(phba, vports);
6059 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) {
6060 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
6062 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
6063 lpfc_cleanup_pending_mbox(phba->pport);
6064 if (phba->sli_rev == LPFC_SLI_REV4)
6065 lpfc_sli4_unreg_all_rpis(phba->pport);
6066 lpfc_mbx_unreg_vpi(phba->pport);
6067 shost = lpfc_shost_from_vport(phba->pport);
6068 spin_lock_irq(shost->host_lock);
6069 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6070 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED;
6071 spin_unlock_irq(shost->host_lock);
6074 /* Cleanup any outstanding ELS commands */
6075 lpfc_els_flush_all_cmd(phba);
6077 /* Unregister the physical port VFI */
6078 rc = lpfc_issue_unreg_vfi(phba->pport);
6083 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
6084 * @phba: Pointer to hba context object.
6086 * This function issues synchronous unregister FCF mailbox command to HBA to
6087 * unregister the currently registered FCF record. The driver does not reset
6088 * the driver FCF usage state flags.
6090 * Return 0 if successfully issued, none-zero otherwise.
6093 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
6098 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6100 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6101 "2551 UNREG_FCFI mbox allocation failed"
6102 "HBA state x%x\n", phba->pport->port_state);
6105 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
6106 mbox->vport = phba->pport;
6107 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
6108 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6110 if (rc == MBX_NOT_FINISHED) {
6111 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6112 "2552 Unregister FCFI command failed rc x%x "
6114 rc, phba->pport->port_state);
6121 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
6122 * @phba: Pointer to hba context object.
6124 * This function unregisters the currently reigstered FCF. This function
6125 * also tries to find another FCF for discovery by rescan the HBA FCF table.
6128 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
6132 /* Preparation for unregistering fcf */
6133 rc = lpfc_unregister_fcf_prep(phba);
6135 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6136 "2748 Failed to prepare for unregistering "
6137 "HBA's FCF record: rc=%d\n", rc);
6141 /* Now, unregister FCF record and reset HBA FCF state */
6142 rc = lpfc_sli4_unregister_fcf(phba);
6145 /* Reset HBA FCF states after successful unregister FCF */
6146 phba->fcf.fcf_flag = 0;
6147 phba->fcf.current_rec.flag = 0;
6150 * If driver is not unloading, check if there is any other
6151 * FCF record that can be used for discovery.
6153 if ((phba->pport->load_flag & FC_UNLOADING) ||
6154 (phba->link_state < LPFC_LINK_UP))
6157 /* This is considered as the initial FCF discovery scan */
6158 spin_lock_irq(&phba->hbalock);
6159 phba->fcf.fcf_flag |= FCF_INIT_DISC;
6160 spin_unlock_irq(&phba->hbalock);
6162 /* Reset FCF roundrobin bmask for new discovery */
6163 lpfc_sli4_clear_fcf_rr_bmask(phba);
6165 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6168 spin_lock_irq(&phba->hbalock);
6169 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
6170 spin_unlock_irq(&phba->hbalock);
6171 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6172 "2553 lpfc_unregister_unused_fcf failed "
6173 "to read FCF record HBA state x%x\n",
6174 phba->pport->port_state);
6179 * lpfc_unregister_fcf - Unregister the currently registered fcf record
6180 * @phba: Pointer to hba context object.
6182 * This function just unregisters the currently reigstered FCF. It does not
6183 * try to find another FCF for discovery.
6186 lpfc_unregister_fcf(struct lpfc_hba *phba)
6190 /* Preparation for unregistering fcf */
6191 rc = lpfc_unregister_fcf_prep(phba);
6193 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6194 "2749 Failed to prepare for unregistering "
6195 "HBA's FCF record: rc=%d\n", rc);
6199 /* Now, unregister FCF record and reset HBA FCF state */
6200 rc = lpfc_sli4_unregister_fcf(phba);
6203 /* Set proper HBA FCF states after successful unregister FCF */
6204 spin_lock_irq(&phba->hbalock);
6205 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
6206 spin_unlock_irq(&phba->hbalock);
6210 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
6211 * @phba: Pointer to hba context object.
6213 * This function check if there are any connected remote port for the FCF and
6214 * if all the devices are disconnected, this function unregister FCFI.
6215 * This function also tries to use another FCF for discovery.
6218 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
6221 * If HBA is not running in FIP mode, if HBA does not support
6222 * FCoE, if FCF discovery is ongoing, or if FCF has not been
6223 * registered, do nothing.
6225 spin_lock_irq(&phba->hbalock);
6226 if (!(phba->hba_flag & HBA_FCOE_MODE) ||
6227 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
6228 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
6229 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
6230 (phba->pport->port_state == LPFC_FLOGI)) {
6231 spin_unlock_irq(&phba->hbalock);
6234 spin_unlock_irq(&phba->hbalock);
6236 if (lpfc_fcf_inuse(phba))
6239 lpfc_unregister_fcf_rescan(phba);
6243 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
6244 * @phba: Pointer to hba context object.
6245 * @buff: Buffer containing the FCF connection table as in the config
6247 * This function create driver data structure for the FCF connection
6248 * record table read from config region 23.
6251 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
6254 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6255 struct lpfc_fcf_conn_hdr *conn_hdr;
6256 struct lpfc_fcf_conn_rec *conn_rec;
6257 uint32_t record_count;
6260 /* Free the current connect table */
6261 list_for_each_entry_safe(conn_entry, next_conn_entry,
6262 &phba->fcf_conn_rec_list, list) {
6263 list_del_init(&conn_entry->list);
6267 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
6268 record_count = conn_hdr->length * sizeof(uint32_t)/
6269 sizeof(struct lpfc_fcf_conn_rec);
6271 conn_rec = (struct lpfc_fcf_conn_rec *)
6272 (buff + sizeof(struct lpfc_fcf_conn_hdr));
6274 for (i = 0; i < record_count; i++) {
6275 if (!(conn_rec[i].flags & FCFCNCT_VALID))
6277 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
6280 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6281 "2566 Failed to allocate connection"
6286 memcpy(&conn_entry->conn_rec, &conn_rec[i],
6287 sizeof(struct lpfc_fcf_conn_rec));
6288 list_add_tail(&conn_entry->list,
6289 &phba->fcf_conn_rec_list);
6292 if (!list_empty(&phba->fcf_conn_rec_list)) {
6294 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list,
6296 conn_rec = &conn_entry->conn_rec;
6297 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6298 "3345 FCF connection list rec[%02d]: "
6299 "flags:x%04x, vtag:x%04x, "
6300 "fabric_name:x%02x:%02x:%02x:%02x:"
6301 "%02x:%02x:%02x:%02x, "
6302 "switch_name:x%02x:%02x:%02x:%02x:"
6303 "%02x:%02x:%02x:%02x\n", i++,
6304 conn_rec->flags, conn_rec->vlan_tag,
6305 conn_rec->fabric_name[0],
6306 conn_rec->fabric_name[1],
6307 conn_rec->fabric_name[2],
6308 conn_rec->fabric_name[3],
6309 conn_rec->fabric_name[4],
6310 conn_rec->fabric_name[5],
6311 conn_rec->fabric_name[6],
6312 conn_rec->fabric_name[7],
6313 conn_rec->switch_name[0],
6314 conn_rec->switch_name[1],
6315 conn_rec->switch_name[2],
6316 conn_rec->switch_name[3],
6317 conn_rec->switch_name[4],
6318 conn_rec->switch_name[5],
6319 conn_rec->switch_name[6],
6320 conn_rec->switch_name[7]);
6326 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6327 * @phba: Pointer to hba context object.
6328 * @buff: Buffer containing the FCoE parameter data structure.
6330 * This function update driver data structure with config
6331 * parameters read from config region 23.
6334 lpfc_read_fcoe_param(struct lpfc_hba *phba,
6337 struct lpfc_fip_param_hdr *fcoe_param_hdr;
6338 struct lpfc_fcoe_params *fcoe_param;
6340 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
6342 fcoe_param = (struct lpfc_fcoe_params *)
6343 (buff + sizeof(struct lpfc_fip_param_hdr));
6345 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
6346 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
6349 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
6350 phba->valid_vlan = 1;
6351 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
6355 phba->fc_map[0] = fcoe_param->fc_map[0];
6356 phba->fc_map[1] = fcoe_param->fc_map[1];
6357 phba->fc_map[2] = fcoe_param->fc_map[2];
6362 * lpfc_get_rec_conf23 - Get a record type in config region data.
6363 * @buff: Buffer containing config region 23 data.
6364 * @size: Size of the data buffer.
6365 * @rec_type: Record type to be searched.
6367 * This function searches config region data to find the beginning
6368 * of the record specified by record_type. If record found, this
6369 * function return pointer to the record else return NULL.
6372 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
6374 uint32_t offset = 0, rec_length;
6376 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
6377 (size < sizeof(uint32_t)))
6380 rec_length = buff[offset + 1];
6383 * One TLV record has one word header and number of data words
6384 * specified in the rec_length field of the record header.
6386 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
6388 if (buff[offset] == rec_type)
6389 return &buff[offset];
6391 if (buff[offset] == LPFC_REGION23_LAST_REC)
6394 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
6395 rec_length = buff[offset + 1];
6401 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6402 * @phba: Pointer to lpfc_hba data structure.
6403 * @buff: Buffer containing config region 23 data.
6404 * @size: Size of the data buffer.
6406 * This function parses the FCoE config parameters in config region 23 and
6407 * populate driver data structure with the parameters.
6410 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
6414 uint32_t offset = 0;
6418 * If data size is less than 2 words signature and version cannot be
6421 if (size < 2*sizeof(uint32_t))
6424 /* Check the region signature first */
6425 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
6426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6427 "2567 Config region 23 has bad signature\n");
6433 /* Check the data structure version */
6434 if (buff[offset] != LPFC_REGION23_VERSION) {
6435 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6436 "2568 Config region 23 has bad version\n");
6441 /* Read FCoE param record */
6442 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6443 size - offset, FCOE_PARAM_TYPE);
6445 lpfc_read_fcoe_param(phba, rec_ptr);
6447 /* Read FCF connection table */
6448 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6449 size - offset, FCOE_CONN_TBL_TYPE);
6451 lpfc_read_fcf_conn_tbl(phba, rec_ptr);