1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 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 lpfc_hba *phba;
110 struct lpfc_work_evt *evtp;
114 rdata = rport->dd_data;
116 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
122 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
123 "rport devlosscb: sid:x%x did:x%x flg:x%x",
124 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
126 /* Don't defer this if we are in the process of deleting the vport
127 * or unloading the driver. The unload will cleanup the node
128 * appropriately we just need to cleanup the ndlp rport info here.
130 if (vport->load_flag & FC_UNLOADING) {
131 put_node = rdata->pnode != NULL;
132 put_rport = ndlp->rport != NULL;
138 put_device(&rport->dev);
142 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
145 evtp = &ndlp->dev_loss_evt;
147 if (!list_empty(&evtp->evt_listp))
150 spin_lock_irq(&phba->hbalock);
151 /* We need to hold the node by incrementing the reference
152 * count until this queued work is done
154 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
155 if (evtp->evt_arg1) {
156 evtp->evt = LPFC_EVT_DEV_LOSS;
157 list_add_tail(&evtp->evt_listp, &phba->work_list);
158 lpfc_worker_wake_up(phba);
160 spin_unlock_irq(&phba->hbalock);
166 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
167 * @ndlp: Pointer to remote node object.
169 * This function is called from the worker thread when devloss timeout timer
170 * expires. For SLI4 host, this routine shall return 1 when at lease one
171 * remote node, including this @ndlp, is still in use of FCF; otherwise, this
172 * routine shall return 0 when there is no remote node is still in use of FCF
173 * when devloss timeout happened to this @ndlp.
176 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
178 struct lpfc_rport_data *rdata;
179 struct fc_rport *rport;
180 struct lpfc_vport *vport;
181 struct lpfc_hba *phba;
193 rdata = rport->dd_data;
194 name = (uint8_t *) &ndlp->nlp_portname;
198 if (phba->sli_rev == LPFC_SLI_REV4)
199 fcf_inuse = lpfc_fcf_inuse(phba);
201 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
202 "rport devlosstmo:did:x%x type:x%x id:x%x",
203 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
205 /* Don't defer this if we are in the process of deleting the vport
206 * or unloading the driver. The unload will cleanup the node
207 * appropriately we just need to cleanup the ndlp rport info here.
209 if (vport->load_flag & FC_UNLOADING) {
210 if (ndlp->nlp_sid != NLP_NO_SID) {
211 /* flush the target */
212 lpfc_sli_abort_iocb(vport,
213 &phba->sli.ring[phba->sli.fcp_ring],
214 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
216 put_node = rdata->pnode != NULL;
217 put_rport = ndlp->rport != NULL;
223 put_device(&rport->dev);
227 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
228 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
229 "0284 Devloss timeout Ignored on "
230 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
232 *name, *(name+1), *(name+2), *(name+3),
233 *(name+4), *(name+5), *(name+6), *(name+7),
238 if (ndlp->nlp_type & NLP_FABRIC) {
239 /* We will clean up these Nodes in linkup */
240 put_node = rdata->pnode != NULL;
241 put_rport = ndlp->rport != NULL;
247 put_device(&rport->dev);
251 if (ndlp->nlp_sid != NLP_NO_SID) {
253 /* flush the target */
254 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
255 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
259 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
260 "0203 Devloss timeout on "
261 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
262 "NPort x%06x Data: x%x x%x x%x\n",
263 *name, *(name+1), *(name+2), *(name+3),
264 *(name+4), *(name+5), *(name+6), *(name+7),
265 ndlp->nlp_DID, ndlp->nlp_flag,
266 ndlp->nlp_state, ndlp->nlp_rpi);
268 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
269 "0204 Devloss timeout on "
270 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
271 "NPort x%06x Data: x%x x%x x%x\n",
272 *name, *(name+1), *(name+2), *(name+3),
273 *(name+4), *(name+5), *(name+6), *(name+7),
274 ndlp->nlp_DID, ndlp->nlp_flag,
275 ndlp->nlp_state, ndlp->nlp_rpi);
278 put_node = rdata->pnode != NULL;
279 put_rport = ndlp->rport != NULL;
285 put_device(&rport->dev);
287 if (!(vport->load_flag & FC_UNLOADING) &&
288 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
289 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
290 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
291 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) &&
292 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE))
293 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
299 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
300 * @phba: Pointer to hba context object.
301 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
302 * @nlp_did: remote node identifer with devloss timeout.
304 * This function is called from the worker thread after invoking devloss
305 * timeout handler and releasing the reference count for the ndlp with
306 * which the devloss timeout was handled for SLI4 host. For the devloss
307 * timeout of the last remote node which had been in use of FCF, when this
308 * routine is invoked, it shall be guaranteed that none of the remote are
309 * in-use of FCF. When devloss timeout to the last remote using the FCF,
310 * if the FIP engine is neither in FCF table scan process nor roundrobin
311 * failover process, the in-use FCF shall be unregistered. If the FIP
312 * engine is in FCF discovery process, the devloss timeout state shall
313 * be set for either the FCF table scan process or roundrobin failover
314 * process to unregister the in-use FCF.
317 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
320 /* If devloss timeout happened to a remote node when FCF had no
321 * longer been in-use, do nothing.
326 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
327 spin_lock_irq(&phba->hbalock);
328 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
329 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
330 spin_unlock_irq(&phba->hbalock);
333 phba->hba_flag |= HBA_DEVLOSS_TMO;
334 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
335 "2847 Last remote node (x%x) using "
336 "FCF devloss tmo\n", nlp_did);
338 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
339 spin_unlock_irq(&phba->hbalock);
340 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
341 "2868 Devloss tmo to FCF rediscovery "
345 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
346 spin_unlock_irq(&phba->hbalock);
347 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
348 "2869 Devloss tmo to idle FIP engine, "
349 "unreg in-use FCF and rescan.\n");
350 /* Unregister in-use FCF and rescan */
351 lpfc_unregister_fcf_rescan(phba);
354 spin_unlock_irq(&phba->hbalock);
355 if (phba->hba_flag & FCF_TS_INPROG)
356 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
357 "2870 FCF table scan in progress\n");
358 if (phba->hba_flag & FCF_RR_INPROG)
359 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
360 "2871 FLOGI roundrobin FCF failover "
363 lpfc_unregister_unused_fcf(phba);
367 * lpfc_alloc_fast_evt - Allocates data structure for posting event
368 * @phba: Pointer to hba context object.
370 * This function is called from the functions which need to post
371 * events from interrupt context. This function allocates data
372 * structure required for posting event. It also keeps track of
373 * number of events pending and prevent event storm when there are
376 struct lpfc_fast_path_event *
377 lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
378 struct lpfc_fast_path_event *ret;
380 /* If there are lot of fast event do not exhaust memory due to this */
381 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
384 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
387 atomic_inc(&phba->fast_event_count);
388 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
389 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
395 * lpfc_free_fast_evt - Frees event data structure
396 * @phba: Pointer to hba context object.
397 * @evt: Event object which need to be freed.
399 * This function frees the data structure required for posting
403 lpfc_free_fast_evt(struct lpfc_hba *phba,
404 struct lpfc_fast_path_event *evt) {
406 atomic_dec(&phba->fast_event_count);
411 * lpfc_send_fastpath_evt - Posts events generated from fast path
412 * @phba: Pointer to hba context object.
413 * @evtp: Event data structure.
415 * This function is called from worker thread, when the interrupt
416 * context need to post an event. This function posts the event
417 * to fc transport netlink interface.
420 lpfc_send_fastpath_evt(struct lpfc_hba *phba,
421 struct lpfc_work_evt *evtp)
423 unsigned long evt_category, evt_sub_category;
424 struct lpfc_fast_path_event *fast_evt_data;
426 uint32_t evt_data_size;
427 struct Scsi_Host *shost;
429 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
432 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
433 evt_sub_category = (unsigned long) fast_evt_data->un.
434 fabric_evt.subcategory;
435 shost = lpfc_shost_from_vport(fast_evt_data->vport);
436 if (evt_category == FC_REG_FABRIC_EVENT) {
437 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
438 evt_data = (char *) &fast_evt_data->un.read_check_error;
439 evt_data_size = sizeof(fast_evt_data->un.
441 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
442 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
443 evt_data = (char *) &fast_evt_data->un.fabric_evt;
444 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
446 lpfc_free_fast_evt(phba, fast_evt_data);
449 } else if (evt_category == FC_REG_SCSI_EVENT) {
450 switch (evt_sub_category) {
451 case LPFC_EVENT_QFULL:
452 case LPFC_EVENT_DEVBSY:
453 evt_data = (char *) &fast_evt_data->un.scsi_evt;
454 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
456 case LPFC_EVENT_CHECK_COND:
457 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
458 evt_data_size = sizeof(fast_evt_data->un.
461 case LPFC_EVENT_VARQUEDEPTH:
462 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
463 evt_data_size = sizeof(fast_evt_data->un.
467 lpfc_free_fast_evt(phba, fast_evt_data);
471 lpfc_free_fast_evt(phba, fast_evt_data);
475 fc_host_post_vendor_event(shost,
476 fc_get_event_number(),
481 lpfc_free_fast_evt(phba, fast_evt_data);
486 lpfc_work_list_done(struct lpfc_hba *phba)
488 struct lpfc_work_evt *evtp = NULL;
489 struct lpfc_nodelist *ndlp;
494 spin_lock_irq(&phba->hbalock);
495 while (!list_empty(&phba->work_list)) {
496 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
498 spin_unlock_irq(&phba->hbalock);
501 case LPFC_EVT_ELS_RETRY:
502 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
503 lpfc_els_retry_delay_handler(ndlp);
504 free_evt = 0; /* evt is part of ndlp */
505 /* decrement the node reference count held
506 * for this queued work
510 case LPFC_EVT_DEV_LOSS:
511 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
512 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
514 /* decrement the node reference count held for
517 nlp_did = ndlp->nlp_DID;
519 if (phba->sli_rev == LPFC_SLI_REV4)
520 lpfc_sli4_post_dev_loss_tmo_handler(phba,
524 case LPFC_EVT_ONLINE:
525 if (phba->link_state < LPFC_LINK_DOWN)
526 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
528 *(int *) (evtp->evt_arg1) = 0;
529 complete((struct completion *)(evtp->evt_arg2));
531 case LPFC_EVT_OFFLINE_PREP:
532 if (phba->link_state >= LPFC_LINK_DOWN)
533 lpfc_offline_prep(phba);
534 *(int *)(evtp->evt_arg1) = 0;
535 complete((struct completion *)(evtp->evt_arg2));
537 case LPFC_EVT_OFFLINE:
539 lpfc_sli_brdrestart(phba);
540 *(int *)(evtp->evt_arg1) =
541 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
542 lpfc_unblock_mgmt_io(phba);
543 complete((struct completion *)(evtp->evt_arg2));
545 case LPFC_EVT_WARM_START:
547 lpfc_reset_barrier(phba);
548 lpfc_sli_brdreset(phba);
549 lpfc_hba_down_post(phba);
550 *(int *)(evtp->evt_arg1) =
551 lpfc_sli_brdready(phba, HS_MBRDY);
552 lpfc_unblock_mgmt_io(phba);
553 complete((struct completion *)(evtp->evt_arg2));
557 *(int *)(evtp->evt_arg1)
558 = (phba->pport->stopped)
559 ? 0 : lpfc_sli_brdkill(phba);
560 lpfc_unblock_mgmt_io(phba);
561 complete((struct completion *)(evtp->evt_arg2));
563 case LPFC_EVT_FASTPATH_MGMT_EVT:
564 lpfc_send_fastpath_evt(phba, evtp);
567 case LPFC_EVT_RESET_HBA:
568 if (!(phba->pport->load_flag & FC_UNLOADING))
569 lpfc_reset_hba(phba);
574 spin_lock_irq(&phba->hbalock);
576 spin_unlock_irq(&phba->hbalock);
581 lpfc_work_done(struct lpfc_hba *phba)
583 struct lpfc_sli_ring *pring;
584 uint32_t ha_copy, status, control, work_port_events;
585 struct lpfc_vport **vports;
586 struct lpfc_vport *vport;
589 spin_lock_irq(&phba->hbalock);
590 ha_copy = phba->work_ha;
592 spin_unlock_irq(&phba->hbalock);
594 /* First, try to post the next mailbox command to SLI4 device */
595 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
596 lpfc_sli4_post_async_mbox(phba);
598 if (ha_copy & HA_ERATT)
599 /* Handle the error attention event */
600 lpfc_handle_eratt(phba);
602 if (ha_copy & HA_MBATT)
603 lpfc_sli_handle_mb_event(phba);
605 if (ha_copy & HA_LATT)
606 lpfc_handle_latt(phba);
608 /* Process SLI4 events */
609 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
610 if (phba->hba_flag & HBA_RRQ_ACTIVE)
611 lpfc_handle_rrq_active(phba);
612 if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
613 lpfc_sli4_fcp_xri_abort_event_proc(phba);
614 if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
615 lpfc_sli4_els_xri_abort_event_proc(phba);
616 if (phba->hba_flag & ASYNC_EVENT)
617 lpfc_sli4_async_event_proc(phba);
618 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
619 spin_lock_irq(&phba->hbalock);
620 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
621 spin_unlock_irq(&phba->hbalock);
622 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
624 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
625 lpfc_sli4_fcf_redisc_event_proc(phba);
628 vports = lpfc_create_vport_work_array(phba);
630 for (i = 0; i <= phba->max_vports; i++) {
632 * We could have no vports in array if unloading, so if
633 * this happens then just use the pport
635 if (vports[i] == NULL && i == 0)
641 spin_lock_irq(&vport->work_port_lock);
642 work_port_events = vport->work_port_events;
643 vport->work_port_events &= ~work_port_events;
644 spin_unlock_irq(&vport->work_port_lock);
645 if (work_port_events & WORKER_DISC_TMO)
646 lpfc_disc_timeout_handler(vport);
647 if (work_port_events & WORKER_ELS_TMO)
648 lpfc_els_timeout_handler(vport);
649 if (work_port_events & WORKER_HB_TMO)
650 lpfc_hb_timeout_handler(phba);
651 if (work_port_events & WORKER_MBOX_TMO)
652 lpfc_mbox_timeout_handler(phba);
653 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
654 lpfc_unblock_fabric_iocbs(phba);
655 if (work_port_events & WORKER_FDMI_TMO)
656 lpfc_fdmi_timeout_handler(vport);
657 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
658 lpfc_ramp_down_queue_handler(phba);
659 if (work_port_events & WORKER_RAMP_UP_QUEUE)
660 lpfc_ramp_up_queue_handler(phba);
662 lpfc_destroy_vport_work_array(phba, vports);
664 pring = &phba->sli.ring[LPFC_ELS_RING];
665 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
666 status >>= (4*LPFC_ELS_RING);
667 if ((status & HA_RXMASK) ||
668 (pring->flag & LPFC_DEFERRED_RING_EVENT) ||
669 (phba->hba_flag & HBA_SP_QUEUE_EVT)) {
670 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
671 pring->flag |= LPFC_DEFERRED_RING_EVENT;
672 /* Set the lpfc data pending flag */
673 set_bit(LPFC_DATA_READY, &phba->data_flags);
675 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
676 lpfc_sli_handle_slow_ring_event(phba, pring,
680 if ((phba->sli_rev == LPFC_SLI_REV4) && pring->txq_cnt)
681 lpfc_drain_txq(phba);
683 * Turn on Ring interrupts
685 if (phba->sli_rev <= LPFC_SLI_REV3) {
686 spin_lock_irq(&phba->hbalock);
687 control = readl(phba->HCregaddr);
688 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
689 lpfc_debugfs_slow_ring_trc(phba,
690 "WRK Enable ring: cntl:x%x hacopy:x%x",
691 control, ha_copy, 0);
693 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
694 writel(control, phba->HCregaddr);
695 readl(phba->HCregaddr); /* flush */
697 lpfc_debugfs_slow_ring_trc(phba,
698 "WRK Ring ok: cntl:x%x hacopy:x%x",
699 control, ha_copy, 0);
701 spin_unlock_irq(&phba->hbalock);
704 lpfc_work_list_done(phba);
708 lpfc_do_work(void *p)
710 struct lpfc_hba *phba = p;
713 set_user_nice(current, -20);
714 phba->data_flags = 0;
716 while (!kthread_should_stop()) {
717 /* wait and check worker queue activities */
718 rc = wait_event_interruptible(phba->work_waitq,
719 (test_and_clear_bit(LPFC_DATA_READY,
721 || kthread_should_stop()));
722 /* Signal wakeup shall terminate the worker thread */
724 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
725 "0433 Wakeup on signal: rc=x%x\n", rc);
729 /* Attend pending lpfc data processing */
730 lpfc_work_done(phba);
732 phba->worker_thread = NULL;
733 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
734 "0432 Worker thread stopped.\n");
739 * This is only called to handle FC worker events. Since this a rare
740 * occurance, we allocate a struct lpfc_work_evt structure here instead of
741 * embedding it in the IOCB.
744 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
747 struct lpfc_work_evt *evtp;
751 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
752 * be queued to worker thread for processing
754 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
758 evtp->evt_arg1 = arg1;
759 evtp->evt_arg2 = arg2;
762 spin_lock_irqsave(&phba->hbalock, flags);
763 list_add_tail(&evtp->evt_listp, &phba->work_list);
764 spin_unlock_irqrestore(&phba->hbalock, flags);
766 lpfc_worker_wake_up(phba);
772 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
774 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
775 struct lpfc_hba *phba = vport->phba;
776 struct lpfc_nodelist *ndlp, *next_ndlp;
779 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
780 if (!NLP_CHK_NODE_ACT(ndlp))
782 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
784 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
785 ((vport->port_type == LPFC_NPIV_PORT) &&
786 (ndlp->nlp_DID == NameServer_DID)))
787 lpfc_unreg_rpi(vport, ndlp);
789 /* Leave Fabric nodes alone on link down */
790 if ((phba->sli_rev < LPFC_SLI_REV4) &&
791 (!remove && ndlp->nlp_type & NLP_FABRIC))
793 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
796 : NLP_EVT_DEVICE_RECOVERY);
798 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
799 if (phba->sli_rev == LPFC_SLI_REV4)
800 lpfc_sli4_unreg_all_rpis(vport);
801 lpfc_mbx_unreg_vpi(vport);
802 spin_lock_irq(shost->host_lock);
803 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
804 spin_unlock_irq(shost->host_lock);
809 lpfc_port_link_failure(struct lpfc_vport *vport)
811 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
813 /* Cleanup any outstanding received buffers */
814 lpfc_cleanup_rcv_buffers(vport);
816 /* Cleanup any outstanding RSCN activity */
817 lpfc_els_flush_rscn(vport);
819 /* Cleanup any outstanding ELS commands */
820 lpfc_els_flush_cmd(vport);
822 lpfc_cleanup_rpis(vport, 0);
824 /* Turn off discovery timer if its running */
825 lpfc_can_disctmo(vport);
829 lpfc_linkdown_port(struct lpfc_vport *vport)
831 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
833 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
835 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
836 "Link Down: state:x%x rtry:x%x flg:x%x",
837 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
839 lpfc_port_link_failure(vport);
844 lpfc_linkdown(struct lpfc_hba *phba)
846 struct lpfc_vport *vport = phba->pport;
847 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
848 struct lpfc_vport **vports;
852 if (phba->link_state == LPFC_LINK_DOWN)
855 /* Block all SCSI stack I/Os */
856 lpfc_scsi_dev_block(phba);
858 spin_lock_irq(&phba->hbalock);
859 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
860 spin_unlock_irq(&phba->hbalock);
861 if (phba->link_state > LPFC_LINK_DOWN) {
862 phba->link_state = LPFC_LINK_DOWN;
863 spin_lock_irq(shost->host_lock);
864 phba->pport->fc_flag &= ~FC_LBIT;
865 spin_unlock_irq(shost->host_lock);
867 vports = lpfc_create_vport_work_array(phba);
869 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
870 /* Issue a LINK DOWN event to all nodes */
871 lpfc_linkdown_port(vports[i]);
873 lpfc_destroy_vport_work_array(phba, vports);
874 /* Clean up any firmware default rpi's */
875 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
877 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
879 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
880 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
881 == MBX_NOT_FINISHED) {
882 mempool_free(mb, phba->mbox_mem_pool);
886 /* Setup myDID for link up if we are in pt2pt mode */
887 if (phba->pport->fc_flag & FC_PT2PT) {
888 phba->pport->fc_myDID = 0;
889 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
891 lpfc_config_link(phba, mb);
892 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
894 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
895 == MBX_NOT_FINISHED) {
896 mempool_free(mb, phba->mbox_mem_pool);
899 spin_lock_irq(shost->host_lock);
900 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
901 spin_unlock_irq(shost->host_lock);
908 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
910 struct lpfc_nodelist *ndlp;
912 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
913 if (!NLP_CHK_NODE_ACT(ndlp))
915 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
917 if (ndlp->nlp_type & NLP_FABRIC) {
918 /* On Linkup its safe to clean up the ndlp
919 * from Fabric connections.
921 if (ndlp->nlp_DID != Fabric_DID)
922 lpfc_unreg_rpi(vport, ndlp);
923 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
924 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
925 /* Fail outstanding IO now since device is
928 lpfc_unreg_rpi(vport, ndlp);
934 lpfc_linkup_port(struct lpfc_vport *vport)
936 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
937 struct lpfc_hba *phba = vport->phba;
939 if ((vport->load_flag & FC_UNLOADING) != 0)
942 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
943 "Link Up: top:x%x speed:x%x flg:x%x",
944 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
946 /* If NPIV is not enabled, only bring the physical port up */
947 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
948 (vport != phba->pport))
951 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
953 spin_lock_irq(shost->host_lock);
954 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
955 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
956 vport->fc_flag |= FC_NDISC_ACTIVE;
957 vport->fc_ns_retry = 0;
958 spin_unlock_irq(shost->host_lock);
960 if (vport->fc_flag & FC_LBIT)
961 lpfc_linkup_cleanup_nodes(vport);
966 lpfc_linkup(struct lpfc_hba *phba)
968 struct lpfc_vport **vports;
971 lpfc_cleanup_wt_rrqs(phba);
972 phba->link_state = LPFC_LINK_UP;
974 /* Unblock fabric iocbs if they are blocked */
975 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
976 del_timer_sync(&phba->fabric_block_timer);
978 vports = lpfc_create_vport_work_array(phba);
980 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
981 lpfc_linkup_port(vports[i]);
982 lpfc_destroy_vport_work_array(phba, vports);
983 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
984 (phba->sli_rev < LPFC_SLI_REV4))
985 lpfc_issue_clear_la(phba, phba->pport);
991 * This routine handles processing a CLEAR_LA mailbox
992 * command upon completion. It is setup in the LPFC_MBOXQ
993 * as the completion routine when the command is
994 * handed off to the SLI layer.
997 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
999 struct lpfc_vport *vport = pmb->vport;
1000 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1001 struct lpfc_sli *psli = &phba->sli;
1002 MAILBOX_t *mb = &pmb->u.mb;
1005 /* Since we don't do discovery right now, turn these off here */
1006 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1007 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1008 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1010 /* Check for error */
1011 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
1012 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1013 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1014 "0320 CLEAR_LA mbxStatus error x%x hba "
1016 mb->mbxStatus, vport->port_state);
1017 phba->link_state = LPFC_HBA_ERROR;
1021 if (vport->port_type == LPFC_PHYSICAL_PORT)
1022 phba->link_state = LPFC_HBA_READY;
1024 spin_lock_irq(&phba->hbalock);
1025 psli->sli_flag |= LPFC_PROCESS_LA;
1026 control = readl(phba->HCregaddr);
1027 control |= HC_LAINT_ENA;
1028 writel(control, phba->HCregaddr);
1029 readl(phba->HCregaddr); /* flush */
1030 spin_unlock_irq(&phba->hbalock);
1031 mempool_free(pmb, phba->mbox_mem_pool);
1035 /* Device Discovery completes */
1036 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1037 "0225 Device Discovery completes\n");
1038 mempool_free(pmb, phba->mbox_mem_pool);
1040 spin_lock_irq(shost->host_lock);
1041 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
1042 spin_unlock_irq(shost->host_lock);
1044 lpfc_can_disctmo(vport);
1046 /* turn on Link Attention interrupts */
1048 spin_lock_irq(&phba->hbalock);
1049 psli->sli_flag |= LPFC_PROCESS_LA;
1050 control = readl(phba->HCregaddr);
1051 control |= HC_LAINT_ENA;
1052 writel(control, phba->HCregaddr);
1053 readl(phba->HCregaddr); /* flush */
1054 spin_unlock_irq(&phba->hbalock);
1061 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1063 struct lpfc_vport *vport = pmb->vport;
1065 if (pmb->u.mb.mbxStatus)
1068 mempool_free(pmb, phba->mbox_mem_pool);
1070 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
1071 vport->fc_flag & FC_PUBLIC_LOOP &&
1072 !(vport->fc_flag & FC_LBIT)) {
1073 /* Need to wait for FAN - use discovery timer
1074 * for timeout. port_state is identically
1075 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1077 lpfc_set_disctmo(vport);
1081 /* Start discovery by sending a FLOGI. port_state is identically
1082 * LPFC_FLOGI while waiting for FLOGI cmpl
1084 if (vport->port_state != LPFC_FLOGI)
1085 lpfc_initial_flogi(vport);
1089 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1090 "0306 CONFIG_LINK mbxStatus error x%x "
1092 pmb->u.mb.mbxStatus, vport->port_state);
1093 mempool_free(pmb, phba->mbox_mem_pool);
1095 lpfc_linkdown(phba);
1097 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1098 "0200 CONFIG_LINK bad hba state x%x\n",
1101 lpfc_issue_clear_la(phba, vport);
1106 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1108 struct lpfc_vport *vport = mboxq->vport;
1110 if (mboxq->u.mb.mbxStatus) {
1111 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1112 "2017 REG_FCFI mbxStatus error x%x "
1114 mboxq->u.mb.mbxStatus, vport->port_state);
1118 /* Start FCoE discovery by sending a FLOGI. */
1119 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1120 /* Set the FCFI registered flag */
1121 spin_lock_irq(&phba->hbalock);
1122 phba->fcf.fcf_flag |= FCF_REGISTERED;
1123 spin_unlock_irq(&phba->hbalock);
1125 /* If there is a pending FCoE event, restart FCF table scan. */
1126 if (lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
1129 /* Mark successful completion of FCF table scan */
1130 spin_lock_irq(&phba->hbalock);
1131 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1132 phba->hba_flag &= ~FCF_TS_INPROG;
1133 if (vport->port_state != LPFC_FLOGI) {
1134 phba->hba_flag |= FCF_RR_INPROG;
1135 spin_unlock_irq(&phba->hbalock);
1136 lpfc_issue_init_vfi(vport);
1139 spin_unlock_irq(&phba->hbalock);
1143 spin_lock_irq(&phba->hbalock);
1144 phba->hba_flag &= ~FCF_RR_INPROG;
1145 spin_unlock_irq(&phba->hbalock);
1147 mempool_free(mboxq, phba->mbox_mem_pool);
1151 * lpfc_fab_name_match - Check if the fcf fabric name match.
1152 * @fab_name: pointer to fabric name.
1153 * @new_fcf_record: pointer to fcf record.
1155 * This routine compare the fcf record's fabric name with provided
1156 * fabric name. If the fabric name are identical this function
1157 * returns 1 else return 0.
1160 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1162 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1164 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1166 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1168 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1170 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1172 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
1174 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1176 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1182 * lpfc_sw_name_match - Check if the fcf switch name match.
1183 * @fab_name: pointer to fabric name.
1184 * @new_fcf_record: pointer to fcf record.
1186 * This routine compare the fcf record's switch name with provided
1187 * switch name. If the switch name are identical this function
1188 * returns 1 else return 0.
1191 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1193 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1195 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1197 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
1199 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1201 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1203 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1205 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1207 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1213 * lpfc_mac_addr_match - Check if the fcf mac address match.
1214 * @mac_addr: pointer to mac address.
1215 * @new_fcf_record: pointer to fcf record.
1217 * This routine compare the fcf record's mac address with HBA's
1218 * FCF mac address. If the mac addresses are identical this function
1219 * returns 1 else return 0.
1222 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
1224 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1226 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1228 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1230 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1232 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1234 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
1240 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1242 return (curr_vlan_id == new_vlan_id);
1246 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1247 * @fcf: pointer to driver fcf record.
1248 * @new_fcf_record: pointer to fcf record.
1250 * This routine copies the FCF information from the FCF
1251 * record to lpfc_hba data structure.
1254 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1255 struct fcf_record *new_fcf_record)
1258 fcf_rec->fabric_name[0] =
1259 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
1260 fcf_rec->fabric_name[1] =
1261 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
1262 fcf_rec->fabric_name[2] =
1263 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
1264 fcf_rec->fabric_name[3] =
1265 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
1266 fcf_rec->fabric_name[4] =
1267 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
1268 fcf_rec->fabric_name[5] =
1269 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
1270 fcf_rec->fabric_name[6] =
1271 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
1272 fcf_rec->fabric_name[7] =
1273 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
1275 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1276 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1277 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1278 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1279 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1280 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1281 /* FCF record index */
1282 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1283 /* FCF record priority */
1284 fcf_rec->priority = new_fcf_record->fip_priority;
1286 fcf_rec->switch_name[0] =
1287 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
1288 fcf_rec->switch_name[1] =
1289 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
1290 fcf_rec->switch_name[2] =
1291 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
1292 fcf_rec->switch_name[3] =
1293 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
1294 fcf_rec->switch_name[4] =
1295 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
1296 fcf_rec->switch_name[5] =
1297 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
1298 fcf_rec->switch_name[6] =
1299 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
1300 fcf_rec->switch_name[7] =
1301 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
1305 * lpfc_update_fcf_record - Update driver fcf record
1306 * @phba: pointer to lpfc hba data structure.
1307 * @fcf_rec: pointer to driver fcf record.
1308 * @new_fcf_record: pointer to hba fcf record.
1309 * @addr_mode: address mode to be set to the driver fcf record.
1310 * @vlan_id: vlan tag to be set to the driver fcf record.
1311 * @flag: flag bits to be set to the driver fcf record.
1313 * This routine updates the driver FCF record from the new HBA FCF record
1314 * together with the address mode, vlan_id, and other informations. This
1315 * routine is called with the host lock held.
1318 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1319 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1320 uint16_t vlan_id, uint32_t flag)
1322 /* Copy the fields from the HBA's FCF record */
1323 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1324 /* Update other fields of driver FCF record */
1325 fcf_rec->addr_mode = addr_mode;
1326 fcf_rec->vlan_id = vlan_id;
1327 fcf_rec->flag |= (flag | RECORD_VALID);
1331 * lpfc_register_fcf - Register the FCF with hba.
1332 * @phba: pointer to lpfc hba data structure.
1334 * This routine issues a register fcfi mailbox command to register
1338 lpfc_register_fcf(struct lpfc_hba *phba)
1340 LPFC_MBOXQ_t *fcf_mbxq;
1343 spin_lock_irq(&phba->hbalock);
1344 /* If the FCF is not availabe do nothing. */
1345 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
1346 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1347 spin_unlock_irq(&phba->hbalock);
1351 /* The FCF is already registered, start discovery */
1352 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
1353 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1354 phba->hba_flag &= ~FCF_TS_INPROG;
1355 if (phba->pport->port_state != LPFC_FLOGI) {
1356 phba->hba_flag |= FCF_RR_INPROG;
1357 spin_unlock_irq(&phba->hbalock);
1358 lpfc_issue_init_vfi(phba->pport);
1361 spin_unlock_irq(&phba->hbalock);
1364 spin_unlock_irq(&phba->hbalock);
1366 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1368 spin_lock_irq(&phba->hbalock);
1369 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1370 spin_unlock_irq(&phba->hbalock);
1374 lpfc_reg_fcfi(phba, fcf_mbxq);
1375 fcf_mbxq->vport = phba->pport;
1376 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1377 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
1378 if (rc == MBX_NOT_FINISHED) {
1379 spin_lock_irq(&phba->hbalock);
1380 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1381 spin_unlock_irq(&phba->hbalock);
1382 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
1389 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1390 * @phba: pointer to lpfc hba data structure.
1391 * @new_fcf_record: pointer to fcf record.
1392 * @boot_flag: Indicates if this record used by boot bios.
1393 * @addr_mode: The address mode to be used by this FCF
1394 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1396 * This routine compare the fcf record with connect list obtained from the
1397 * config region to decide if this FCF can be used for SAN discovery. It returns
1398 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1399 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1400 * is used by boot bios and addr_mode will indicate the addressing mode to be
1401 * used for this FCF when the function returns.
1402 * If the FCF record need to be used with a particular vlan id, the vlan is
1403 * set in the vlan_id on return of the function. If not VLAN tagging need to
1404 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1407 lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1408 struct fcf_record *new_fcf_record,
1409 uint32_t *boot_flag, uint32_t *addr_mode,
1412 struct lpfc_fcf_conn_entry *conn_entry;
1413 int i, j, fcf_vlan_id = 0;
1415 /* Find the lowest VLAN id in the FCF record */
1416 for (i = 0; i < 512; i++) {
1417 if (new_fcf_record->vlan_bitmap[i]) {
1418 fcf_vlan_id = i * 8;
1420 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1428 /* If FCF not available return 0 */
1429 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1430 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record))
1433 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
1435 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1437 if (phba->valid_vlan)
1438 *vlan_id = phba->vlan_id;
1440 *vlan_id = LPFC_FCOE_NULL_VID;
1445 * If there are no FCF connection table entry, driver connect to all
1448 if (list_empty(&phba->fcf_conn_rec_list)) {
1450 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1454 * When there are no FCF connect entries, use driver's default
1455 * addressing mode - FPMA.
1457 if (*addr_mode & LPFC_FCF_FPMA)
1458 *addr_mode = LPFC_FCF_FPMA;
1460 /* If FCF record report a vlan id use that vlan id */
1462 *vlan_id = fcf_vlan_id;
1464 *vlan_id = LPFC_FCOE_NULL_VID;
1468 list_for_each_entry(conn_entry,
1469 &phba->fcf_conn_rec_list, list) {
1470 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1473 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1474 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
1477 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1478 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1481 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1483 * If the vlan bit map does not have the bit set for the
1484 * vlan id to be used, then it is not a match.
1486 if (!(new_fcf_record->vlan_bitmap
1487 [conn_entry->conn_rec.vlan_tag / 8] &
1488 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1493 * If connection record does not support any addressing mode,
1494 * skip the FCF record.
1496 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1497 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1501 * Check if the connection record specifies a required
1504 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1505 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1508 * If SPMA required but FCF not support this continue.
1510 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1511 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1512 new_fcf_record) & LPFC_FCF_SPMA))
1516 * If FPMA required but FCF not support this continue.
1518 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1519 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1520 new_fcf_record) & LPFC_FCF_FPMA))
1525 * This fcf record matches filtering criteria.
1527 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1533 * If user did not specify any addressing mode, or if the
1534 * prefered addressing mode specified by user is not supported
1535 * by FCF, allow fabric to pick the addressing mode.
1537 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1540 * If the user specified a required address mode, assign that
1543 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1544 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1545 *addr_mode = (conn_entry->conn_rec.flags &
1547 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1549 * If the user specified a prefered address mode, use the
1550 * addr mode only if FCF support the addr_mode.
1552 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1553 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1554 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1555 (*addr_mode & LPFC_FCF_SPMA))
1556 *addr_mode = LPFC_FCF_SPMA;
1557 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1558 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1559 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1560 (*addr_mode & LPFC_FCF_FPMA))
1561 *addr_mode = LPFC_FCF_FPMA;
1563 /* If matching connect list has a vlan id, use it */
1564 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1565 *vlan_id = conn_entry->conn_rec.vlan_tag;
1567 * If no vlan id is specified in connect list, use the vlan id
1570 else if (fcf_vlan_id)
1571 *vlan_id = fcf_vlan_id;
1573 *vlan_id = LPFC_FCOE_NULL_VID;
1582 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1583 * @phba: pointer to lpfc hba data structure.
1584 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1586 * This function check if there is any fcoe event pending while driver
1587 * scan FCF entries. If there is any pending event, it will restart the
1588 * FCF saning and return 1 else return 0.
1591 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1594 * If the Link is up and no FCoE events while in the
1595 * FCF discovery, no need to restart FCF discovery.
1597 if ((phba->link_state >= LPFC_LINK_UP) &&
1598 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
1601 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1602 "2768 Pending link or FCF event during current "
1603 "handling of the previous event: link_state:x%x, "
1604 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1605 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
1606 phba->fcoe_eventtag);
1608 spin_lock_irq(&phba->hbalock);
1609 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1610 spin_unlock_irq(&phba->hbalock);
1612 if (phba->link_state >= LPFC_LINK_UP) {
1613 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1614 "2780 Restart FCF table scan due to "
1615 "pending FCF event:evt_tag_at_scan:x%x, "
1616 "evt_tag_current:x%x\n",
1617 phba->fcoe_eventtag_at_fcf_scan,
1618 phba->fcoe_eventtag);
1619 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
1622 * Do not continue FCF discovery and clear FCF_TS_INPROG
1625 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1626 "2833 Stop FCF discovery process due to link "
1627 "state change (x%x)\n", phba->link_state);
1628 spin_lock_irq(&phba->hbalock);
1629 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1630 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
1631 spin_unlock_irq(&phba->hbalock);
1634 /* Unregister the currently registered FCF if required */
1636 spin_lock_irq(&phba->hbalock);
1637 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1638 spin_unlock_irq(&phba->hbalock);
1639 lpfc_sli4_unregister_fcf(phba);
1645 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1646 * @phba: pointer to lpfc hba data structure.
1647 * @fcf_cnt: number of eligible fcf record seen so far.
1649 * This function makes an running random selection decision on FCF record to
1650 * use through a sequence of @fcf_cnt eligible FCF records with equal
1651 * probability. To perform integer manunipulation of random numbers with
1652 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1653 * from random32() are taken as the random random number generated.
1655 * Returns true when outcome is for the newly read FCF record should be
1656 * chosen; otherwise, return false when outcome is for keeping the previously
1657 * chosen FCF record.
1660 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
1664 /* Get 16-bit uniform random number */
1665 rand_num = (0xFFFF & random32());
1667 /* Decision with probability 1/fcf_cnt */
1668 if ((fcf_cnt * rand_num) < 0xFFFF)
1675 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
1676 * @phba: pointer to lpfc hba data structure.
1677 * @mboxq: pointer to mailbox object.
1678 * @next_fcf_index: pointer to holder of next fcf index.
1680 * This routine parses the non-embedded fcf mailbox command by performing the
1681 * necessarily error checking, non-embedded read FCF record mailbox command
1682 * SGE parsing, and endianness swapping.
1684 * Returns the pointer to the new FCF record in the non-embedded mailbox
1685 * command DMA memory if successfully, other NULL.
1687 static struct fcf_record *
1688 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
1689 uint16_t *next_fcf_index)
1692 dma_addr_t phys_addr;
1693 struct lpfc_mbx_sge sge;
1694 struct lpfc_mbx_read_fcf_tbl *read_fcf;
1695 uint32_t shdr_status, shdr_add_status;
1696 union lpfc_sli4_cfg_shdr *shdr;
1697 struct fcf_record *new_fcf_record;
1699 /* Get the first SGE entry from the non-embedded DMA memory. This
1700 * routine only uses a single SGE.
1702 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1703 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
1704 if (unlikely(!mboxq->sge_array)) {
1705 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1706 "2524 Failed to get the non-embedded SGE "
1707 "virtual address\n");
1710 virt_addr = mboxq->sge_array->addr[0];
1712 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
1713 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
1714 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
1715 if (shdr_status || shdr_add_status) {
1716 if (shdr_status == STATUS_FCF_TABLE_EMPTY)
1717 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1718 "2726 READ_FCF_RECORD Indicates empty "
1721 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1722 "2521 READ_FCF_RECORD mailbox failed "
1723 "with status x%x add_status x%x, "
1724 "mbx\n", shdr_status, shdr_add_status);
1728 /* Interpreting the returned information of the FCF record */
1729 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1730 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1731 sizeof(struct lpfc_mbx_read_fcf_tbl));
1732 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
1733 new_fcf_record = (struct fcf_record *)(virt_addr +
1734 sizeof(struct lpfc_mbx_read_fcf_tbl));
1735 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
1736 offsetof(struct fcf_record, vlan_bitmap));
1737 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
1738 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
1740 return new_fcf_record;
1744 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1745 * @phba: pointer to lpfc hba data structure.
1746 * @fcf_record: pointer to the fcf record.
1747 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1748 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1750 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1754 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
1755 struct fcf_record *fcf_record,
1757 uint16_t next_fcf_index)
1759 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1760 "2764 READ_FCF_RECORD:\n"
1761 "\tFCF_Index : x%x\n"
1762 "\tFCF_Avail : x%x\n"
1763 "\tFCF_Valid : x%x\n"
1764 "\tFIP_Priority : x%x\n"
1765 "\tMAC_Provider : x%x\n"
1766 "\tLowest VLANID : x%x\n"
1767 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1768 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1769 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1770 "\tNext_FCF_Index: x%x\n",
1771 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
1772 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
1773 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
1774 fcf_record->fip_priority,
1775 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
1777 bf_get(lpfc_fcf_record_mac_0, fcf_record),
1778 bf_get(lpfc_fcf_record_mac_1, fcf_record),
1779 bf_get(lpfc_fcf_record_mac_2, fcf_record),
1780 bf_get(lpfc_fcf_record_mac_3, fcf_record),
1781 bf_get(lpfc_fcf_record_mac_4, fcf_record),
1782 bf_get(lpfc_fcf_record_mac_5, fcf_record),
1783 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
1784 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
1785 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
1786 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
1787 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
1788 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
1789 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
1790 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
1791 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
1792 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
1793 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
1794 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
1795 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
1796 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
1797 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
1798 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
1803 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1804 * @phba: pointer to lpfc hba data structure.
1805 * @fcf_rec: pointer to an existing FCF record.
1806 * @new_fcf_record: pointer to a new FCF record.
1807 * @new_vlan_id: vlan id from the new FCF record.
1809 * This function performs matching test of a new FCF record against an existing
1810 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1811 * will not be used as part of the FCF record matching criteria.
1813 * Returns true if all the fields matching, otherwise returns false.
1816 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
1817 struct lpfc_fcf_rec *fcf_rec,
1818 struct fcf_record *new_fcf_record,
1819 uint16_t new_vlan_id)
1821 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
1822 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
1824 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
1826 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
1828 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
1834 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1835 * @vport: Pointer to vport object.
1836 * @fcf_index: index to next fcf.
1838 * This function processing the roundrobin fcf failover to next fcf index.
1839 * When this function is invoked, there will be a current fcf registered
1841 * Return: 0 for continue retrying flogi on currently registered fcf;
1842 * 1 for stop flogi on currently registered fcf;
1844 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
1846 struct lpfc_hba *phba = vport->phba;
1849 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
1850 spin_lock_irq(&phba->hbalock);
1851 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
1852 spin_unlock_irq(&phba->hbalock);
1853 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1854 "2872 Devloss tmo with no eligible "
1855 "FCF, unregister in-use FCF (x%x) "
1856 "and rescan FCF table\n",
1857 phba->fcf.current_rec.fcf_indx);
1858 lpfc_unregister_fcf_rescan(phba);
1859 goto stop_flogi_current_fcf;
1861 /* Mark the end to FLOGI roundrobin failover */
1862 phba->hba_flag &= ~FCF_RR_INPROG;
1863 /* Allow action to new fcf asynchronous event */
1864 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
1865 spin_unlock_irq(&phba->hbalock);
1866 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1867 "2865 No FCF available, stop roundrobin FCF "
1868 "failover and change port state:x%x/x%x\n",
1869 phba->pport->port_state, LPFC_VPORT_UNKNOWN);
1870 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
1871 goto stop_flogi_current_fcf;
1873 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
1874 "2794 Try FLOGI roundrobin FCF failover to "
1875 "(x%x)\n", fcf_index);
1876 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
1878 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
1879 "2761 FLOGI roundrobin FCF failover "
1880 "failed (rc:x%x) to read FCF (x%x)\n",
1881 rc, phba->fcf.current_rec.fcf_indx);
1883 goto stop_flogi_current_fcf;
1887 stop_flogi_current_fcf:
1888 lpfc_can_disctmo(vport);
1893 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
1894 * @phba: pointer to lpfc hba data structure.
1895 * @mboxq: pointer to mailbox object.
1897 * This function iterates through all the fcf records available in
1898 * HBA and chooses the optimal FCF record for discovery. After finding
1899 * the FCF for discovery it registers the FCF record and kicks start
1901 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
1902 * use an FCF record which matches fabric name and mac address of the
1903 * currently used FCF record.
1904 * If the driver supports only one FCF, it will try to use the FCF record
1905 * used by BOOT_BIOS.
1908 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1910 struct fcf_record *new_fcf_record;
1911 uint32_t boot_flag, addr_mode;
1912 uint16_t fcf_index, next_fcf_index;
1913 struct lpfc_fcf_rec *fcf_rec = NULL;
1916 bool select_new_fcf;
1919 /* If there is pending FCoE event restart FCF table scan */
1920 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
1921 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1925 /* Parse the FCF record from the non-embedded mailbox command */
1926 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
1928 if (!new_fcf_record) {
1929 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1930 "2765 Mailbox command READ_FCF_RECORD "
1931 "failed to retrieve a FCF record.\n");
1932 /* Let next new FCF event trigger fast failover */
1933 spin_lock_irq(&phba->hbalock);
1934 phba->hba_flag &= ~FCF_TS_INPROG;
1935 spin_unlock_irq(&phba->hbalock);
1936 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1940 /* Check the FCF record against the connection list */
1941 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
1942 &addr_mode, &vlan_id);
1944 /* Log the FCF record information if turned on */
1945 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
1949 * If the fcf record does not match with connect list entries
1950 * read the next entry; otherwise, this is an eligible FCF
1951 * record for roundrobin FCF failover.
1954 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
1955 "2781 FCF (x%x) failed connection "
1956 "list check: (x%x/x%x)\n",
1957 bf_get(lpfc_fcf_record_fcf_index,
1959 bf_get(lpfc_fcf_record_fcf_avail,
1961 bf_get(lpfc_fcf_record_fcf_valid,
1963 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
1964 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
1965 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
1966 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
1967 phba->fcf.current_rec.fcf_indx) {
1968 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1969 "2862 FCF (x%x) matches property "
1970 "of in-use FCF (x%x)\n",
1971 bf_get(lpfc_fcf_record_fcf_index,
1973 phba->fcf.current_rec.fcf_indx);
1977 * In case the current in-use FCF record becomes
1978 * invalid/unavailable during FCF discovery that
1979 * was not triggered by fast FCF failover process,
1980 * treat it as fast FCF failover.
1982 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
1983 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
1984 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
1985 "2835 Invalid in-use FCF "
1986 "(x%x), enter FCF failover "
1988 phba->fcf.current_rec.fcf_indx);
1989 spin_lock_irq(&phba->hbalock);
1990 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
1991 spin_unlock_irq(&phba->hbalock);
1992 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1993 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
1994 LPFC_FCOE_FCF_GET_FIRST);
2000 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2001 rc = lpfc_sli4_fcf_rr_index_set(phba, fcf_index);
2007 * If this is not the first FCF discovery of the HBA, use last
2008 * FCF record for the discovery. The condition that a rescan
2009 * matches the in-use FCF record: fabric name, switch name, mac
2010 * address, and vlan_id.
2012 spin_lock_irq(&phba->hbalock);
2013 if (phba->fcf.fcf_flag & FCF_IN_USE) {
2014 if (lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2015 new_fcf_record, vlan_id)) {
2016 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
2017 phba->fcf.current_rec.fcf_indx) {
2018 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2019 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
2020 /* Stop FCF redisc wait timer */
2021 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2023 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2024 /* Fast failover, mark completed */
2025 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2026 spin_unlock_irq(&phba->hbalock);
2027 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2028 "2836 New FCF matches in-use "
2030 phba->fcf.current_rec.fcf_indx);
2033 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2034 "2863 New FCF (x%x) matches "
2035 "property of in-use FCF (x%x)\n",
2036 bf_get(lpfc_fcf_record_fcf_index,
2038 phba->fcf.current_rec.fcf_indx);
2041 * Read next FCF record from HBA searching for the matching
2042 * with in-use record only if not during the fast failover
2043 * period. In case of fast failover period, it shall try to
2044 * determine whether the FCF record just read should be the
2047 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2048 spin_unlock_irq(&phba->hbalock);
2053 * Update on failover FCF record only if it's in FCF fast-failover
2054 * period; otherwise, update on current FCF record.
2056 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2057 fcf_rec = &phba->fcf.failover_rec;
2059 fcf_rec = &phba->fcf.current_rec;
2061 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
2063 * If the driver FCF record does not have boot flag
2064 * set and new hba fcf record has boot flag set, use
2065 * the new hba fcf record.
2067 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
2068 /* Choose this FCF record */
2069 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2070 "2837 Update current FCF record "
2071 "(x%x) with new FCF record (x%x)\n",
2073 bf_get(lpfc_fcf_record_fcf_index,
2075 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2076 addr_mode, vlan_id, BOOT_ENABLE);
2077 spin_unlock_irq(&phba->hbalock);
2081 * If the driver FCF record has boot flag set and the
2082 * new hba FCF record does not have boot flag, read
2083 * the next FCF record.
2085 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
2086 spin_unlock_irq(&phba->hbalock);
2090 * If the new hba FCF record has lower priority value
2091 * than the driver FCF record, use the new record.
2093 if (new_fcf_record->fip_priority < fcf_rec->priority) {
2094 /* Choose the new FCF record with lower priority */
2095 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2096 "2838 Update current FCF record "
2097 "(x%x) with new FCF record (x%x)\n",
2099 bf_get(lpfc_fcf_record_fcf_index,
2101 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2102 addr_mode, vlan_id, 0);
2103 /* Reset running random FCF selection count */
2104 phba->fcf.eligible_fcf_cnt = 1;
2105 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
2106 /* Update running random FCF selection count */
2107 phba->fcf.eligible_fcf_cnt++;
2108 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
2109 phba->fcf.eligible_fcf_cnt);
2110 if (select_new_fcf) {
2111 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2112 "2839 Update current FCF record "
2113 "(x%x) with new FCF record (x%x)\n",
2115 bf_get(lpfc_fcf_record_fcf_index,
2117 /* Choose the new FCF by random selection */
2118 __lpfc_update_fcf_record(phba, fcf_rec,
2120 addr_mode, vlan_id, 0);
2123 spin_unlock_irq(&phba->hbalock);
2127 * This is the first suitable FCF record, choose this record for
2128 * initial best-fit FCF.
2131 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2132 "2840 Update initial FCF candidate "
2134 bf_get(lpfc_fcf_record_fcf_index,
2136 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2137 addr_mode, vlan_id, (boot_flag ?
2139 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2140 /* Setup initial running random FCF selection count */
2141 phba->fcf.eligible_fcf_cnt = 1;
2142 /* Seeding the random number generator for random selection */
2143 seed = (uint32_t)(0xFFFFFFFF & jiffies);
2146 spin_unlock_irq(&phba->hbalock);
2150 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2151 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
2152 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
2154 * Case of FCF fast failover scan
2158 * It has not found any suitable FCF record, cancel
2159 * FCF scan inprogress, and do nothing
2161 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
2162 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2163 "2782 No suitable FCF found: "
2165 phba->fcoe_eventtag_at_fcf_scan,
2166 bf_get(lpfc_fcf_record_fcf_index,
2168 spin_lock_irq(&phba->hbalock);
2169 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2170 phba->hba_flag &= ~FCF_TS_INPROG;
2171 spin_unlock_irq(&phba->hbalock);
2172 /* Unregister in-use FCF and rescan */
2173 lpfc_printf_log(phba, KERN_INFO,
2175 "2864 On devloss tmo "
2176 "unreg in-use FCF and "
2177 "rescan FCF table\n");
2178 lpfc_unregister_fcf_rescan(phba);
2182 * Let next new FCF event trigger fast failover
2184 phba->hba_flag &= ~FCF_TS_INPROG;
2185 spin_unlock_irq(&phba->hbalock);
2189 * It has found a suitable FCF record that is not
2190 * the same as in-use FCF record, unregister the
2191 * in-use FCF record, replace the in-use FCF record
2192 * with the new FCF record, mark FCF fast failover
2193 * completed, and then start register the new FCF
2197 /* Unregister the current in-use FCF record */
2198 lpfc_unregister_fcf(phba);
2200 /* Replace in-use record with the new record */
2201 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2202 "2842 Replace in-use FCF (x%x) "
2203 "with failover FCF (x%x)\n",
2204 phba->fcf.current_rec.fcf_indx,
2205 phba->fcf.failover_rec.fcf_indx);
2206 memcpy(&phba->fcf.current_rec,
2207 &phba->fcf.failover_rec,
2208 sizeof(struct lpfc_fcf_rec));
2210 * Mark the fast FCF failover rediscovery completed
2211 * and the start of the first round of the roundrobin
2214 spin_lock_irq(&phba->hbalock);
2215 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2216 spin_unlock_irq(&phba->hbalock);
2217 /* Register to the new FCF record */
2218 lpfc_register_fcf(phba);
2221 * In case of transaction period to fast FCF failover,
2222 * do nothing when search to the end of the FCF table.
2224 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
2225 (phba->fcf.fcf_flag & FCF_REDISC_PEND))
2228 if (phba->fcf.fcf_flag & FCF_IN_USE) {
2230 * In case the current in-use FCF record no
2231 * longer existed during FCF discovery that
2232 * was not triggered by fast FCF failover
2233 * process, treat it as fast FCF failover.
2235 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2236 "2841 In-use FCF record (x%x) "
2237 "not reported, entering fast "
2238 "FCF failover mode scanning.\n",
2239 phba->fcf.current_rec.fcf_indx);
2240 spin_lock_irq(&phba->hbalock);
2241 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2242 spin_unlock_irq(&phba->hbalock);
2243 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2244 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2245 LPFC_FCOE_FCF_GET_FIRST);
2248 /* Register to the new FCF record */
2249 lpfc_register_fcf(phba);
2252 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
2256 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2257 lpfc_register_fcf(phba);
2263 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2264 * @phba: pointer to lpfc hba data structure.
2265 * @mboxq: pointer to mailbox object.
2267 * This is the callback function for FLOGI failure roundrobin FCF failover
2268 * read FCF record mailbox command from the eligible FCF record bmask for
2269 * performing the failover. If the FCF read back is not valid/available, it
2270 * fails through to retrying FLOGI to the currently registered FCF again.
2271 * Otherwise, if the FCF read back is valid and available, it will set the
2272 * newly read FCF record to the failover FCF record, unregister currently
2273 * registered FCF record, copy the failover FCF record to the current
2274 * FCF record, and then register the current FCF record before proceeding
2275 * to trying FLOGI on the new failover FCF.
2278 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2280 struct fcf_record *new_fcf_record;
2281 uint32_t boot_flag, addr_mode;
2282 uint16_t next_fcf_index, fcf_index;
2283 uint16_t current_fcf_index;
2287 /* If link state is not up, stop the roundrobin failover process */
2288 if (phba->link_state < LPFC_LINK_UP) {
2289 spin_lock_irq(&phba->hbalock);
2290 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
2291 phba->hba_flag &= ~FCF_RR_INPROG;
2292 spin_unlock_irq(&phba->hbalock);
2296 /* Parse the FCF record from the non-embedded mailbox command */
2297 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2299 if (!new_fcf_record) {
2300 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2301 "2766 Mailbox command READ_FCF_RECORD "
2302 "failed to retrieve a FCF record.\n");
2306 /* Get the needed parameters from FCF record */
2307 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2308 &addr_mode, &vlan_id);
2310 /* Log the FCF record information if turned on */
2311 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2314 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2316 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2317 "2848 Remove ineligible FCF (x%x) from "
2318 "from roundrobin bmask\n", fcf_index);
2319 /* Clear roundrobin bmask bit for ineligible FCF */
2320 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
2321 /* Perform next round of roundrobin FCF failover */
2322 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
2323 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
2329 if (fcf_index == phba->fcf.current_rec.fcf_indx) {
2330 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2331 "2760 Perform FLOGI roundrobin FCF failover: "
2332 "FCF (x%x) back to FCF (x%x)\n",
2333 phba->fcf.current_rec.fcf_indx, fcf_index);
2334 /* Wait 500 ms before retrying FLOGI to current FCF */
2336 lpfc_issue_init_vfi(phba->pport);
2340 /* Upload new FCF record to the failover FCF record */
2341 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2342 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2343 phba->fcf.failover_rec.fcf_indx, fcf_index);
2344 spin_lock_irq(&phba->hbalock);
2345 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2346 new_fcf_record, addr_mode, vlan_id,
2347 (boot_flag ? BOOT_ENABLE : 0));
2348 spin_unlock_irq(&phba->hbalock);
2350 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2352 /* Unregister the current in-use FCF record */
2353 lpfc_unregister_fcf(phba);
2355 /* Replace in-use record with the new record */
2356 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2357 sizeof(struct lpfc_fcf_rec));
2359 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2360 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2361 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
2364 lpfc_register_fcf(phba);
2366 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2370 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2371 * @phba: pointer to lpfc hba data structure.
2372 * @mboxq: pointer to mailbox object.
2374 * This is the callback function of read FCF record mailbox command for
2375 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
2376 * failover when a new FCF event happened. If the FCF read back is
2377 * valid/available and it passes the connection list check, it updates
2378 * the bmask for the eligible FCF record for roundrobin failover.
2381 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2383 struct fcf_record *new_fcf_record;
2384 uint32_t boot_flag, addr_mode;
2385 uint16_t fcf_index, next_fcf_index;
2389 /* If link state is not up, no need to proceed */
2390 if (phba->link_state < LPFC_LINK_UP)
2393 /* If FCF discovery period is over, no need to proceed */
2394 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
2397 /* Parse the FCF record from the non-embedded mailbox command */
2398 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2400 if (!new_fcf_record) {
2401 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2402 "2767 Mailbox command READ_FCF_RECORD "
2403 "failed to retrieve a FCF record.\n");
2407 /* Check the connection list for eligibility */
2408 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2409 &addr_mode, &vlan_id);
2411 /* Log the FCF record information if turned on */
2412 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2418 /* Update the eligible FCF record index bmask */
2419 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2420 rc = lpfc_sli4_fcf_rr_index_set(phba, fcf_index);
2423 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2427 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2428 * @phba: pointer to lpfc hba data structure.
2429 * @mboxq: pointer to mailbox data structure.
2431 * This function handles completion of init vfi mailbox command.
2434 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2436 struct lpfc_vport *vport = mboxq->vport;
2438 if (mboxq->u.mb.mbxStatus && (mboxq->u.mb.mbxStatus != 0x4002)) {
2439 lpfc_printf_vlog(vport, KERN_ERR,
2441 "2891 Init VFI mailbox failed 0x%x\n",
2442 mboxq->u.mb.mbxStatus);
2443 mempool_free(mboxq, phba->mbox_mem_pool);
2444 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2447 lpfc_initial_flogi(vport);
2448 mempool_free(mboxq, phba->mbox_mem_pool);
2453 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2454 * @vport: pointer to lpfc_vport data structure.
2456 * This function issue a init_vfi mailbox command to initialize the VFI and
2457 * VPI for the physical port.
2460 lpfc_issue_init_vfi(struct lpfc_vport *vport)
2462 LPFC_MBOXQ_t *mboxq;
2464 struct lpfc_hba *phba = vport->phba;
2466 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2468 lpfc_printf_vlog(vport, KERN_ERR,
2469 LOG_MBOX, "2892 Failed to allocate "
2470 "init_vfi mailbox\n");
2473 lpfc_init_vfi(mboxq, vport);
2474 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
2475 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
2476 if (rc == MBX_NOT_FINISHED) {
2477 lpfc_printf_vlog(vport, KERN_ERR,
2478 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n");
2479 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2484 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2485 * @phba: pointer to lpfc hba data structure.
2486 * @mboxq: pointer to mailbox data structure.
2488 * This function handles completion of init vpi mailbox command.
2491 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2493 struct lpfc_vport *vport = mboxq->vport;
2494 struct lpfc_nodelist *ndlp;
2495 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2497 if (mboxq->u.mb.mbxStatus) {
2498 lpfc_printf_vlog(vport, KERN_ERR,
2500 "2609 Init VPI mailbox failed 0x%x\n",
2501 mboxq->u.mb.mbxStatus);
2502 mempool_free(mboxq, phba->mbox_mem_pool);
2503 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2506 spin_lock_irq(shost->host_lock);
2507 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
2508 spin_unlock_irq(shost->host_lock);
2510 /* If this port is physical port or FDISC is done, do reg_vpi */
2511 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
2512 ndlp = lpfc_findnode_did(vport, Fabric_DID);
2514 lpfc_printf_vlog(vport, KERN_ERR,
2516 "2731 Cannot find fabric "
2517 "controller node\n");
2519 lpfc_register_new_vport(phba, vport, ndlp);
2520 mempool_free(mboxq, phba->mbox_mem_pool);
2524 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2525 lpfc_initial_fdisc(vport);
2527 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
2528 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2529 "2606 No NPIV Fabric support\n");
2531 mempool_free(mboxq, phba->mbox_mem_pool);
2536 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2537 * @vport: pointer to lpfc_vport data structure.
2539 * This function issue a init_vpi mailbox command to initialize
2540 * VPI for the vport.
2543 lpfc_issue_init_vpi(struct lpfc_vport *vport)
2545 LPFC_MBOXQ_t *mboxq;
2548 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
2550 lpfc_printf_vlog(vport, KERN_ERR,
2551 LOG_MBOX, "2607 Failed to allocate "
2552 "init_vpi mailbox\n");
2555 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
2556 mboxq->vport = vport;
2557 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
2558 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
2559 if (rc == MBX_NOT_FINISHED) {
2560 lpfc_printf_vlog(vport, KERN_ERR,
2561 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
2562 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2567 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2568 * @phba: pointer to lpfc hba data structure.
2570 * This function loops through the list of vports on the @phba and issues an
2571 * FDISC if possible.
2574 lpfc_start_fdiscs(struct lpfc_hba *phba)
2576 struct lpfc_vport **vports;
2579 vports = lpfc_create_vport_work_array(phba);
2580 if (vports != NULL) {
2581 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2582 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
2584 /* There are no vpi for this vport */
2585 if (vports[i]->vpi > phba->max_vpi) {
2586 lpfc_vport_set_state(vports[i],
2590 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2591 lpfc_vport_set_state(vports[i],
2595 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
2596 lpfc_issue_init_vpi(vports[i]);
2599 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2600 lpfc_initial_fdisc(vports[i]);
2602 lpfc_vport_set_state(vports[i],
2603 FC_VPORT_NO_FABRIC_SUPP);
2604 lpfc_printf_vlog(vports[i], KERN_ERR,
2607 "Fabric support\n");
2611 lpfc_destroy_vport_work_array(phba, vports);
2615 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2617 struct lpfc_dmabuf *dmabuf = mboxq->context1;
2618 struct lpfc_vport *vport = mboxq->vport;
2619 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2621 if (mboxq->u.mb.mbxStatus) {
2622 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2623 "2018 REG_VFI mbxStatus error x%x "
2625 mboxq->u.mb.mbxStatus, vport->port_state);
2626 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2627 /* FLOGI failed, use loop map to make discovery list */
2628 lpfc_disc_list_loopmap(vport);
2629 /* Start discovery */
2630 lpfc_disc_start(vport);
2633 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2636 /* The VPI is implicitly registered when the VFI is registered */
2637 spin_lock_irq(shost->host_lock);
2638 vport->vpi_state |= LPFC_VPI_REGISTERED;
2639 vport->fc_flag |= FC_VFI_REGISTERED;
2640 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2641 spin_unlock_irq(shost->host_lock);
2643 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
2644 /* For private loop just start discovery and we are done. */
2645 if ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
2646 (phba->alpa_map[0] == 0) &&
2647 !(vport->fc_flag & FC_PUBLIC_LOOP)) {
2648 /* Use loop map to make discovery list */
2649 lpfc_disc_list_loopmap(vport);
2650 /* Start discovery */
2651 lpfc_disc_start(vport);
2653 lpfc_start_fdiscs(phba);
2654 lpfc_do_scr_ns_plogi(phba, vport);
2659 mempool_free(mboxq, phba->mbox_mem_pool);
2660 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
2666 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2668 MAILBOX_t *mb = &pmb->u.mb;
2669 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
2670 struct lpfc_vport *vport = pmb->vport;
2673 /* Check for error */
2674 if (mb->mbxStatus) {
2675 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
2676 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2677 "0319 READ_SPARAM mbxStatus error x%x "
2679 mb->mbxStatus, vport->port_state);
2680 lpfc_linkdown(phba);
2684 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
2685 sizeof (struct serv_parm));
2686 if (phba->cfg_soft_wwnn)
2687 u64_to_wwn(phba->cfg_soft_wwnn,
2688 vport->fc_sparam.nodeName.u.wwn);
2689 if (phba->cfg_soft_wwpn)
2690 u64_to_wwn(phba->cfg_soft_wwpn,
2691 vport->fc_sparam.portName.u.wwn);
2692 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
2693 sizeof(vport->fc_nodename));
2694 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
2695 sizeof(vport->fc_portname));
2696 if (vport->port_type == LPFC_PHYSICAL_PORT) {
2697 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
2698 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
2701 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2703 mempool_free(pmb, phba->mbox_mem_pool);
2707 pmb->context1 = NULL;
2708 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2710 lpfc_issue_clear_la(phba, vport);
2711 mempool_free(pmb, phba->mbox_mem_pool);
2716 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
2718 struct lpfc_vport *vport = phba->pport;
2719 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
2721 struct lpfc_dmabuf *mp;
2723 struct fcf_record *fcf_record;
2725 spin_lock_irq(&phba->hbalock);
2726 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
2727 case LPFC_LINK_SPEED_1GHZ:
2728 case LPFC_LINK_SPEED_2GHZ:
2729 case LPFC_LINK_SPEED_4GHZ:
2730 case LPFC_LINK_SPEED_8GHZ:
2731 case LPFC_LINK_SPEED_10GHZ:
2732 case LPFC_LINK_SPEED_16GHZ:
2733 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
2736 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
2740 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
2741 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
2743 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2744 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
2746 /* if npiv is enabled and this adapter supports npiv log
2747 * a message that npiv is not supported in this topology
2749 if (phba->cfg_enable_npiv && phba->max_vpi)
2750 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2751 "1309 Link Up Event npiv not supported in loop "
2753 /* Get Loop Map information */
2754 if (bf_get(lpfc_mbx_read_top_il, la))
2755 vport->fc_flag |= FC_LBIT;
2757 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
2758 i = la->lilpBde64.tus.f.bdeSize;
2761 phba->alpa_map[0] = 0;
2763 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
2774 numalpa = phba->alpa_map[0];
2776 while (j < numalpa) {
2777 memset(un.pamap, 0, 16);
2778 for (k = 1; j < numalpa; k++) {
2780 phba->alpa_map[j + 1];
2785 /* Link Up Event ALPA map */
2786 lpfc_printf_log(phba,
2789 "1304 Link Up Event "
2790 "ALPA map Data: x%x "
2792 un.pa.wd1, un.pa.wd2,
2793 un.pa.wd3, un.pa.wd4);
2798 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
2799 if (phba->max_vpi && phba->cfg_enable_npiv &&
2800 (phba->sli_rev == 3))
2801 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
2803 vport->fc_myDID = phba->fc_pref_DID;
2804 vport->fc_flag |= FC_LBIT;
2806 spin_unlock_irq(&phba->hbalock);
2809 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2813 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
2815 mempool_free(sparam_mbox, phba->mbox_mem_pool);
2818 sparam_mbox->vport = vport;
2819 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
2820 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
2821 if (rc == MBX_NOT_FINISHED) {
2822 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
2823 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2825 mempool_free(sparam_mbox, phba->mbox_mem_pool);
2829 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
2830 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2833 vport->port_state = LPFC_LOCAL_CFG_LINK;
2834 lpfc_config_link(phba, cfglink_mbox);
2835 cfglink_mbox->vport = vport;
2836 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
2837 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
2838 if (rc == MBX_NOT_FINISHED) {
2839 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
2843 vport->port_state = LPFC_VPORT_UNKNOWN;
2845 * Add the driver's default FCF record at FCF index 0 now. This
2846 * is phase 1 implementation that support FCF index 0 and driver
2849 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
2850 fcf_record = kzalloc(sizeof(struct fcf_record),
2852 if (unlikely(!fcf_record)) {
2853 lpfc_printf_log(phba, KERN_ERR,
2855 "2554 Could not allocate memmory for "
2861 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
2862 LPFC_FCOE_FCF_DEF_INDEX);
2863 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
2865 lpfc_printf_log(phba, KERN_ERR,
2867 "2013 Could not manually add FCF "
2868 "record 0, status %d\n", rc);
2876 * The driver is expected to do FIP/FCF. Call the port
2877 * and get the FCF Table.
2879 spin_lock_irq(&phba->hbalock);
2880 if (phba->hba_flag & FCF_TS_INPROG) {
2881 spin_unlock_irq(&phba->hbalock);
2884 /* This is the initial FCF discovery scan */
2885 phba->fcf.fcf_flag |= FCF_INIT_DISC;
2886 spin_unlock_irq(&phba->hbalock);
2887 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
2888 "2778 Start FCF table scan at linkup\n");
2889 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2890 LPFC_FCOE_FCF_GET_FIRST);
2892 spin_lock_irq(&phba->hbalock);
2893 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
2894 spin_unlock_irq(&phba->hbalock);
2897 /* Reset FCF roundrobin bmask for new discovery */
2898 memset(phba->fcf.fcf_rr_bmask, 0,
2899 sizeof(*phba->fcf.fcf_rr_bmask));
2904 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2905 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2906 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
2907 vport->port_state, sparam_mbox, cfglink_mbox);
2908 lpfc_issue_clear_la(phba, vport);
2913 lpfc_enable_la(struct lpfc_hba *phba)
2916 struct lpfc_sli *psli = &phba->sli;
2917 spin_lock_irq(&phba->hbalock);
2918 psli->sli_flag |= LPFC_PROCESS_LA;
2919 if (phba->sli_rev <= LPFC_SLI_REV3) {
2920 control = readl(phba->HCregaddr);
2921 control |= HC_LAINT_ENA;
2922 writel(control, phba->HCregaddr);
2923 readl(phba->HCregaddr); /* flush */
2925 spin_unlock_irq(&phba->hbalock);
2929 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
2931 lpfc_linkdown(phba);
2932 lpfc_enable_la(phba);
2933 lpfc_unregister_unused_fcf(phba);
2934 /* turn on Link Attention interrupts - no CLEAR_LA needed */
2939 * This routine handles processing a READ_TOPOLOGY mailbox
2940 * command upon completion. It is setup in the LPFC_MBOXQ
2941 * as the completion routine when the command is
2942 * handed off to the SLI layer.
2945 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2947 struct lpfc_vport *vport = pmb->vport;
2948 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2949 struct lpfc_mbx_read_top *la;
2950 MAILBOX_t *mb = &pmb->u.mb;
2951 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2953 /* Unblock ELS traffic */
2954 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2955 /* Check for error */
2956 if (mb->mbxStatus) {
2957 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
2958 "1307 READ_LA mbox error x%x state x%x\n",
2959 mb->mbxStatus, vport->port_state);
2960 lpfc_mbx_issue_link_down(phba);
2961 phba->link_state = LPFC_HBA_ERROR;
2962 goto lpfc_mbx_cmpl_read_topology_free_mbuf;
2965 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
2967 memcpy(&phba->alpa_map[0], mp->virt, 128);
2969 spin_lock_irq(shost->host_lock);
2970 if (bf_get(lpfc_mbx_read_top_pb, la))
2971 vport->fc_flag |= FC_BYPASSED_MODE;
2973 vport->fc_flag &= ~FC_BYPASSED_MODE;
2974 spin_unlock_irq(shost->host_lock);
2976 if ((phba->fc_eventTag < la->eventTag) ||
2977 (phba->fc_eventTag == la->eventTag)) {
2978 phba->fc_stat.LinkMultiEvent++;
2979 if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP)
2980 if (phba->fc_eventTag != 0)
2981 lpfc_linkdown(phba);
2984 phba->fc_eventTag = la->eventTag;
2985 spin_lock_irq(&phba->hbalock);
2986 if (bf_get(lpfc_mbx_read_top_mm, la))
2987 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
2989 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
2990 spin_unlock_irq(&phba->hbalock);
2992 phba->link_events++;
2993 if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) &&
2994 (!bf_get(lpfc_mbx_read_top_mm, la))) {
2995 phba->fc_stat.LinkUp++;
2996 if (phba->link_flag & LS_LOOPBACK_MODE) {
2997 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2998 "1306 Link Up Event in loop back mode "
2999 "x%x received Data: x%x x%x x%x x%x\n",
3000 la->eventTag, phba->fc_eventTag,
3001 bf_get(lpfc_mbx_read_top_alpa_granted,
3003 bf_get(lpfc_mbx_read_top_link_spd, la),
3006 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3007 "1303 Link Up Event x%x received "
3008 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3009 la->eventTag, phba->fc_eventTag,
3010 bf_get(lpfc_mbx_read_top_alpa_granted,
3012 bf_get(lpfc_mbx_read_top_link_spd, la),
3014 bf_get(lpfc_mbx_read_top_mm, la),
3015 bf_get(lpfc_mbx_read_top_fa, la),
3016 phba->wait_4_mlo_maint_flg);
3018 lpfc_mbx_process_link_up(phba, la);
3019 } else if (bf_get(lpfc_mbx_read_top_att_type, la) ==
3020 LPFC_ATT_LINK_DOWN) {
3021 phba->fc_stat.LinkDown++;
3022 if (phba->link_flag & LS_LOOPBACK_MODE) {
3023 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3024 "1308 Link Down Event in loop back mode "
3026 "Data: x%x x%x x%x\n",
3027 la->eventTag, phba->fc_eventTag,
3028 phba->pport->port_state, vport->fc_flag);
3031 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3032 "1305 Link Down Event x%x received "
3033 "Data: x%x x%x x%x x%x x%x\n",
3034 la->eventTag, phba->fc_eventTag,
3035 phba->pport->port_state, vport->fc_flag,
3036 bf_get(lpfc_mbx_read_top_mm, la),
3037 bf_get(lpfc_mbx_read_top_fa, la));
3039 lpfc_mbx_issue_link_down(phba);
3041 if ((bf_get(lpfc_mbx_read_top_mm, la)) &&
3042 (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP)) {
3043 if (phba->link_state != LPFC_LINK_DOWN) {
3044 phba->fc_stat.LinkDown++;
3045 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3046 "1312 Link Down Event x%x received "
3047 "Data: x%x x%x x%x\n",
3048 la->eventTag, phba->fc_eventTag,
3049 phba->pport->port_state, vport->fc_flag);
3050 lpfc_mbx_issue_link_down(phba);
3052 lpfc_enable_la(phba);
3054 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3055 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3056 "Data: x%x x%x x%x\n",
3057 la->eventTag, phba->fc_eventTag,
3058 phba->pport->port_state, vport->fc_flag);
3060 * The cmnd that triggered this will be waiting for this
3063 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3064 if (phba->wait_4_mlo_maint_flg) {
3065 phba->wait_4_mlo_maint_flg = 0;
3066 wake_up_interruptible(&phba->wait_4_mlo_m_q);
3070 if (bf_get(lpfc_mbx_read_top_fa, la)) {
3071 if (bf_get(lpfc_mbx_read_top_mm, la))
3072 lpfc_issue_clear_la(phba, vport);
3073 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3075 bf_get(lpfc_mbx_read_top_fa, la));
3078 lpfc_mbx_cmpl_read_topology_free_mbuf:
3079 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3081 mempool_free(pmb, phba->mbox_mem_pool);
3086 * This routine handles processing a REG_LOGIN mailbox
3087 * command upon completion. It is setup in the LPFC_MBOXQ
3088 * as the completion routine when the command is
3089 * handed off to the SLI layer.
3092 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3094 struct lpfc_vport *vport = pmb->vport;
3095 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3096 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3097 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3099 pmb->context1 = NULL;
3100 pmb->context2 = NULL;
3102 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
3103 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3105 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
3106 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
3107 /* We rcvd a rscn after issuing this
3108 * mbox reg login, we may have cycled
3109 * back through the state and be
3110 * back at reg login state so this
3111 * mbox needs to be ignored becase
3112 * there is another reg login in
3115 spin_lock_irq(shost->host_lock);
3116 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
3117 spin_unlock_irq(shost->host_lock);
3118 if (phba->sli_rev == LPFC_SLI_REV4)
3119 lpfc_sli4_free_rpi(phba,
3120 pmb->u.mb.un.varRegLogin.rpi);
3123 /* Good status, call state machine */
3124 lpfc_disc_state_machine(vport, ndlp, pmb,
3125 NLP_EVT_CMPL_REG_LOGIN);
3127 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3129 mempool_free(pmb, phba->mbox_mem_pool);
3130 /* decrement the node reference count held for this callback
3139 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3141 MAILBOX_t *mb = &pmb->u.mb;
3142 struct lpfc_vport *vport = pmb->vport;
3143 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3145 switch (mb->mbxStatus) {
3148 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3149 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3152 /* If VPI is busy, reset the HBA */
3154 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3155 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3156 vport->vpi, mb->mbxStatus);
3157 if (!(phba->pport->load_flag & FC_UNLOADING))
3158 lpfc_workq_post_event(phba, NULL, NULL,
3159 LPFC_EVT_RESET_HBA);
3161 spin_lock_irq(shost->host_lock);
3162 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
3163 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3164 spin_unlock_irq(shost->host_lock);
3165 vport->unreg_vpi_cmpl = VPORT_OK;
3166 mempool_free(pmb, phba->mbox_mem_pool);
3167 lpfc_cleanup_vports_rrqs(vport);
3169 * This shost reference might have been taken at the beginning of
3170 * lpfc_vport_delete()
3172 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
3173 scsi_host_put(shost);
3177 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
3179 struct lpfc_hba *phba = vport->phba;
3183 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3187 lpfc_unreg_vpi(phba, vport->vpi, mbox);
3188 mbox->vport = vport;
3189 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
3190 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3191 if (rc == MBX_NOT_FINISHED) {
3192 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3193 "1800 Could not issue unreg_vpi\n");
3194 mempool_free(mbox, phba->mbox_mem_pool);
3195 vport->unreg_vpi_cmpl = VPORT_ERROR;
3202 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3204 struct lpfc_vport *vport = pmb->vport;
3205 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3206 MAILBOX_t *mb = &pmb->u.mb;
3208 switch (mb->mbxStatus) {
3212 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3213 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3215 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3216 spin_lock_irq(shost->host_lock);
3217 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
3218 spin_unlock_irq(shost->host_lock);
3219 vport->fc_myDID = 0;
3223 spin_lock_irq(shost->host_lock);
3224 vport->vpi_state |= LPFC_VPI_REGISTERED;
3225 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
3226 spin_unlock_irq(shost->host_lock);
3227 vport->num_disc_nodes = 0;
3228 /* go thru NPR list and issue ELS PLOGIs */
3229 if (vport->fc_npr_cnt)
3230 lpfc_els_disc_plogi(vport);
3232 if (!vport->num_disc_nodes) {
3233 spin_lock_irq(shost->host_lock);
3234 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3235 spin_unlock_irq(shost->host_lock);
3236 lpfc_can_disctmo(vport);
3238 vport->port_state = LPFC_VPORT_READY;
3241 mempool_free(pmb, phba->mbox_mem_pool);
3246 * lpfc_create_static_vport - Read HBA config region to create static vports.
3247 * @phba: pointer to lpfc hba data structure.
3249 * This routine issue a DUMP mailbox command for config region 22 to get
3250 * the list of static vports to be created. The function create vports
3251 * based on the information returned from the HBA.
3254 lpfc_create_static_vport(struct lpfc_hba *phba)
3256 LPFC_MBOXQ_t *pmb = NULL;
3258 struct static_vport_info *vport_info;
3260 struct fc_vport_identifiers vport_id;
3261 struct fc_vport *new_fc_vport;
3262 struct Scsi_Host *shost;
3263 struct lpfc_vport *vport;
3264 uint16_t offset = 0;
3265 uint8_t *vport_buff;
3266 struct lpfc_dmabuf *mp;
3267 uint32_t byte_count = 0;
3269 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3271 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3272 "0542 lpfc_create_static_vport failed to"
3273 " allocate mailbox memory\n");
3279 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
3281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3282 "0543 lpfc_create_static_vport failed to"
3283 " allocate vport_info\n");
3284 mempool_free(pmb, phba->mbox_mem_pool);
3288 vport_buff = (uint8_t *) vport_info;
3290 if (lpfc_dump_static_vport(phba, pmb, offset))
3293 pmb->vport = phba->pport;
3294 rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO);
3296 if ((rc != MBX_SUCCESS) || mb->mbxStatus) {
3297 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3298 "0544 lpfc_create_static_vport failed to"
3299 " issue dump mailbox command ret 0x%x "
3305 if (phba->sli_rev == LPFC_SLI_REV4) {
3306 byte_count = pmb->u.mqe.un.mb_words[5];
3307 mp = (struct lpfc_dmabuf *) pmb->context2;
3308 if (byte_count > sizeof(struct static_vport_info) -
3310 byte_count = sizeof(struct static_vport_info)
3312 memcpy(vport_buff + offset, mp->virt, byte_count);
3313 offset += byte_count;
3315 if (mb->un.varDmp.word_cnt >
3316 sizeof(struct static_vport_info) - offset)
3317 mb->un.varDmp.word_cnt =
3318 sizeof(struct static_vport_info)
3320 byte_count = mb->un.varDmp.word_cnt;
3321 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
3322 vport_buff + offset,
3325 offset += byte_count;
3328 } while (byte_count &&
3329 offset < sizeof(struct static_vport_info));
3332 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
3333 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
3334 != VPORT_INFO_REV)) {
3335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3336 "0545 lpfc_create_static_vport bad"
3337 " information header 0x%x 0x%x\n",
3338 le32_to_cpu(vport_info->signature),
3339 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
3344 shost = lpfc_shost_from_vport(phba->pport);
3346 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
3347 memset(&vport_id, 0, sizeof(vport_id));
3348 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
3349 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
3350 if (!vport_id.port_name || !vport_id.node_name)
3353 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
3354 vport_id.vport_type = FC_PORTTYPE_NPIV;
3355 vport_id.disable = false;
3356 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
3358 if (!new_fc_vport) {
3359 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3360 "0546 lpfc_create_static_vport failed to"
3365 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
3366 vport->vport_flag |= STATIC_VPORT;
3371 if (rc != MBX_TIMEOUT) {
3372 if (pmb->context2) {
3373 mp = (struct lpfc_dmabuf *) pmb->context2;
3374 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3377 mempool_free(pmb, phba->mbox_mem_pool);
3384 * This routine handles processing a Fabric REG_LOGIN mailbox
3385 * command upon completion. It is setup in the LPFC_MBOXQ
3386 * as the completion routine when the command is
3387 * handed off to the SLI layer.
3390 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3392 struct lpfc_vport *vport = pmb->vport;
3393 MAILBOX_t *mb = &pmb->u.mb;
3394 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3395 struct lpfc_nodelist *ndlp;
3397 ndlp = (struct lpfc_nodelist *) pmb->context2;
3398 pmb->context1 = NULL;
3399 pmb->context2 = NULL;
3401 if (mb->mbxStatus) {
3402 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3403 "0258 Register Fabric login error: 0x%x\n",
3405 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3407 mempool_free(pmb, phba->mbox_mem_pool);
3409 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3410 /* FLOGI failed, use loop map to make discovery list */
3411 lpfc_disc_list_loopmap(vport);
3413 /* Start discovery */
3414 lpfc_disc_start(vport);
3415 /* Decrement the reference count to ndlp after the
3416 * reference to the ndlp are done.
3422 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3423 /* Decrement the reference count to ndlp after the reference
3424 * to the ndlp are done.
3430 ndlp->nlp_rpi = mb->un.varWords[0];
3431 ndlp->nlp_flag |= NLP_RPI_VALID;
3432 ndlp->nlp_type |= NLP_FABRIC;
3433 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3435 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3436 /* when physical port receive logo donot start
3437 * vport discovery */
3438 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
3439 lpfc_start_fdiscs(phba);
3441 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
3442 lpfc_do_scr_ns_plogi(phba, vport);
3445 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3447 mempool_free(pmb, phba->mbox_mem_pool);
3449 /* Drop the reference count from the mbox at the end after
3450 * all the current reference to the ndlp have been done.
3457 * This routine handles processing a NameServer REG_LOGIN mailbox
3458 * command upon completion. It is setup in the LPFC_MBOXQ
3459 * as the completion routine when the command is
3460 * handed off to the SLI layer.
3463 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3465 MAILBOX_t *mb = &pmb->u.mb;
3466 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3467 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3468 struct lpfc_vport *vport = pmb->vport;
3470 pmb->context1 = NULL;
3471 pmb->context2 = NULL;
3473 if (mb->mbxStatus) {
3475 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3476 "0260 Register NameServer error: 0x%x\n",
3478 /* decrement the node reference count held for this
3479 * callback function.
3482 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3484 mempool_free(pmb, phba->mbox_mem_pool);
3486 /* If no other thread is using the ndlp, free it */
3487 lpfc_nlp_not_used(ndlp);
3489 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3491 * RegLogin failed, use loop map to make discovery
3494 lpfc_disc_list_loopmap(vport);
3496 /* Start discovery */
3497 lpfc_disc_start(vport);
3500 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3504 ndlp->nlp_rpi = mb->un.varWords[0];
3505 ndlp->nlp_flag |= NLP_RPI_VALID;
3506 ndlp->nlp_type |= NLP_FABRIC;
3507 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3509 if (vport->port_state < LPFC_VPORT_READY) {
3510 /* Link up discovery requires Fabric registration. */
3511 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
3512 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
3513 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
3514 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
3515 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
3517 /* Issue SCR just before NameServer GID_FT Query */
3518 lpfc_issue_els_scr(vport, SCR_DID, 0);
3521 vport->fc_ns_retry = 0;
3522 /* Good status, issue CT Request to NameServer */
3523 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
3524 /* Cannot issue NameServer Query, so finish up discovery */
3528 /* decrement the node reference count held for this
3529 * callback function.
3532 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3534 mempool_free(pmb, phba->mbox_mem_pool);
3540 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3542 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3543 struct fc_rport *rport;
3544 struct lpfc_rport_data *rdata;
3545 struct fc_rport_identifiers rport_ids;
3546 struct lpfc_hba *phba = vport->phba;
3548 /* Remote port has reappeared. Re-register w/ FC transport */
3549 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
3550 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
3551 rport_ids.port_id = ndlp->nlp_DID;
3552 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
3555 * We leave our node pointer in rport->dd_data when we unregister a
3556 * FCP target port. But fc_remote_port_add zeros the space to which
3557 * rport->dd_data points. So, if we're reusing a previously
3558 * registered port, drop the reference that we took the last time we
3559 * registered the port.
3561 if (ndlp->rport && ndlp->rport->dd_data &&
3562 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
3565 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
3566 "rport add: did:x%x flg:x%x type x%x",
3567 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3569 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
3570 if (!rport || !get_device(&rport->dev)) {
3571 dev_printk(KERN_WARNING, &phba->pcidev->dev,
3572 "Warning: fc_remote_port_add failed\n");
3576 /* initialize static port data */
3577 rport->maxframe_size = ndlp->nlp_maxframe;
3578 rport->supported_classes = ndlp->nlp_class_sup;
3579 rdata = rport->dd_data;
3580 rdata->pnode = lpfc_nlp_get(ndlp);
3582 if (ndlp->nlp_type & NLP_FCP_TARGET)
3583 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
3584 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
3585 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
3588 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
3589 fc_remote_port_rolechg(rport, rport_ids.roles);
3591 if ((rport->scsi_target_id != -1) &&
3592 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
3593 ndlp->nlp_sid = rport->scsi_target_id;
3599 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
3601 struct fc_rport *rport = ndlp->rport;
3603 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
3604 "rport delete: did:x%x flg:x%x type x%x",
3605 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3607 fc_remote_port_delete(rport);
3613 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
3615 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3617 spin_lock_irq(shost->host_lock);
3619 case NLP_STE_UNUSED_NODE:
3620 vport->fc_unused_cnt += count;
3622 case NLP_STE_PLOGI_ISSUE:
3623 vport->fc_plogi_cnt += count;
3625 case NLP_STE_ADISC_ISSUE:
3626 vport->fc_adisc_cnt += count;
3628 case NLP_STE_REG_LOGIN_ISSUE:
3629 vport->fc_reglogin_cnt += count;
3631 case NLP_STE_PRLI_ISSUE:
3632 vport->fc_prli_cnt += count;
3634 case NLP_STE_UNMAPPED_NODE:
3635 vport->fc_unmap_cnt += count;
3637 case NLP_STE_MAPPED_NODE:
3638 vport->fc_map_cnt += count;
3640 case NLP_STE_NPR_NODE:
3641 vport->fc_npr_cnt += count;
3644 spin_unlock_irq(shost->host_lock);
3648 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3649 int old_state, int new_state)
3651 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3653 if (new_state == NLP_STE_UNMAPPED_NODE) {
3654 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
3655 ndlp->nlp_type |= NLP_FC_NODE;
3657 if (new_state == NLP_STE_MAPPED_NODE)
3658 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
3659 if (new_state == NLP_STE_NPR_NODE)
3660 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
3662 /* Transport interface */
3663 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
3664 old_state == NLP_STE_UNMAPPED_NODE)) {
3665 vport->phba->nport_event_cnt++;
3666 lpfc_unregister_remote_port(ndlp);
3669 if (new_state == NLP_STE_MAPPED_NODE ||
3670 new_state == NLP_STE_UNMAPPED_NODE) {
3671 vport->phba->nport_event_cnt++;
3673 * Tell the fc transport about the port, if we haven't
3674 * already. If we have, and it's a scsi entity, be
3675 * sure to unblock any attached scsi devices
3677 lpfc_register_remote_port(vport, ndlp);
3679 if ((new_state == NLP_STE_MAPPED_NODE) &&
3680 (vport->stat_data_enabled)) {
3682 * A new target is discovered, if there is no buffer for
3683 * statistical data collection allocate buffer.
3685 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
3686 sizeof(struct lpfc_scsicmd_bkt),
3689 if (!ndlp->lat_data)
3690 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3691 "0286 lpfc_nlp_state_cleanup failed to "
3692 "allocate statistical data buffer DID "
3693 "0x%x\n", ndlp->nlp_DID);
3696 * if we added to Mapped list, but the remote port
3697 * registration failed or assigned a target id outside
3698 * our presentable range - move the node to the
3701 if (new_state == NLP_STE_MAPPED_NODE &&
3703 ndlp->rport->scsi_target_id == -1 ||
3704 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
3705 spin_lock_irq(shost->host_lock);
3706 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
3707 spin_unlock_irq(shost->host_lock);
3708 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3713 lpfc_nlp_state_name(char *buffer, size_t size, int state)
3715 static char *states[] = {
3716 [NLP_STE_UNUSED_NODE] = "UNUSED",
3717 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
3718 [NLP_STE_ADISC_ISSUE] = "ADISC",
3719 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
3720 [NLP_STE_PRLI_ISSUE] = "PRLI",
3721 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
3722 [NLP_STE_MAPPED_NODE] = "MAPPED",
3723 [NLP_STE_NPR_NODE] = "NPR",
3726 if (state < NLP_STE_MAX_STATE && states[state])
3727 strlcpy(buffer, states[state], size);
3729 snprintf(buffer, size, "unknown (%d)", state);
3734 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3737 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3738 int old_state = ndlp->nlp_state;
3739 char name1[16], name2[16];
3741 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3742 "0904 NPort state transition x%06x, %s -> %s\n",
3744 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
3745 lpfc_nlp_state_name(name2, sizeof(name2), state));
3747 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
3748 "node statechg did:x%x old:%d ste:%d",
3749 ndlp->nlp_DID, old_state, state);
3751 if (old_state == NLP_STE_NPR_NODE &&
3752 state != NLP_STE_NPR_NODE)
3753 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3754 if (old_state == NLP_STE_UNMAPPED_NODE) {
3755 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
3756 ndlp->nlp_type &= ~NLP_FC_NODE;
3759 if (list_empty(&ndlp->nlp_listp)) {
3760 spin_lock_irq(shost->host_lock);
3761 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
3762 spin_unlock_irq(shost->host_lock);
3763 } else if (old_state)
3764 lpfc_nlp_counters(vport, old_state, -1);
3766 ndlp->nlp_state = state;
3767 lpfc_nlp_counters(vport, state, 1);
3768 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
3772 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3774 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3776 if (list_empty(&ndlp->nlp_listp)) {
3777 spin_lock_irq(shost->host_lock);
3778 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
3779 spin_unlock_irq(shost->host_lock);
3784 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3786 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3788 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3789 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
3790 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
3791 spin_lock_irq(shost->host_lock);
3792 list_del_init(&ndlp->nlp_listp);
3793 spin_unlock_irq(shost->host_lock);
3794 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
3795 NLP_STE_UNUSED_NODE);
3799 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3801 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3802 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
3803 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
3804 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
3805 NLP_STE_UNUSED_NODE);
3808 * lpfc_initialize_node - Initialize all fields of node object
3809 * @vport: Pointer to Virtual Port object.
3810 * @ndlp: Pointer to FC node object.
3811 * @did: FC_ID of the node.
3813 * This function is always called when node object need to be initialized.
3814 * It initializes all the fields of the node object. Although the reference
3815 * to phba from @ndlp can be obtained indirectly through it's reference to
3816 * @vport, a direct reference to phba is taken here by @ndlp. This is due
3817 * to the life-span of the @ndlp might go beyond the existence of @vport as
3818 * the final release of ndlp is determined by its reference count. And, the
3819 * operation on @ndlp needs the reference to phba.
3822 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3825 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
3826 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
3827 init_timer(&ndlp->nlp_delayfunc);
3828 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
3829 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
3830 ndlp->nlp_DID = did;
3831 ndlp->vport = vport;
3832 ndlp->phba = vport->phba;
3833 ndlp->nlp_sid = NLP_NO_SID;
3834 kref_init(&ndlp->kref);
3835 NLP_INT_NODE_ACT(ndlp);
3836 atomic_set(&ndlp->cmd_pending, 0);
3837 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
3840 struct lpfc_nodelist *
3841 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3844 struct lpfc_hba *phba = vport->phba;
3846 unsigned long flags;
3851 spin_lock_irqsave(&phba->ndlp_lock, flags);
3852 /* The ndlp should not be in memory free mode */
3853 if (NLP_CHK_FREE_REQ(ndlp)) {
3854 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3855 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3856 "0277 lpfc_enable_node: ndlp:x%p "
3857 "usgmap:x%x refcnt:%d\n",
3858 (void *)ndlp, ndlp->nlp_usg_map,
3859 atomic_read(&ndlp->kref.refcount));
3862 /* The ndlp should not already be in active mode */
3863 if (NLP_CHK_NODE_ACT(ndlp)) {
3864 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3865 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3866 "0278 lpfc_enable_node: ndlp:x%p "
3867 "usgmap:x%x refcnt:%d\n",
3868 (void *)ndlp, ndlp->nlp_usg_map,
3869 atomic_read(&ndlp->kref.refcount));
3873 /* Keep the original DID */
3874 did = ndlp->nlp_DID;
3876 /* re-initialize ndlp except of ndlp linked list pointer */
3877 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
3878 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
3879 lpfc_initialize_node(vport, ndlp, did);
3881 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3883 if (state != NLP_STE_UNUSED_NODE)
3884 lpfc_nlp_set_state(vport, ndlp, state);
3886 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
3887 "node enable: did:x%x",
3888 ndlp->nlp_DID, 0, 0);
3893 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3896 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
3897 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
3898 * the ndlp from the vport. The ndlp marked as UNUSED on the list
3899 * until ALL other outstanding threads have completed. We check
3900 * that the ndlp not already in the UNUSED state before we proceed.
3902 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3904 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
3910 * Start / ReStart rescue timer for Discovery / RSCN handling
3913 lpfc_set_disctmo(struct lpfc_vport *vport)
3915 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3916 struct lpfc_hba *phba = vport->phba;
3919 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
3920 /* For FAN, timeout should be greater than edtov */
3921 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
3923 /* Normal discovery timeout should be > than ELS/CT timeout
3924 * FC spec states we need 3 * ratov for CT requests
3926 tmo = ((phba->fc_ratov * 3) + 3);
3930 if (!timer_pending(&vport->fc_disctmo)) {
3931 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3932 "set disc timer: tmo:x%x state:x%x flg:x%x",
3933 tmo, vport->port_state, vport->fc_flag);
3936 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
3937 spin_lock_irq(shost->host_lock);
3938 vport->fc_flag |= FC_DISC_TMO;
3939 spin_unlock_irq(shost->host_lock);
3941 /* Start Discovery Timer state <hba_state> */
3942 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3943 "0247 Start Discovery Timer state x%x "
3944 "Data: x%x x%lx x%x x%x\n",
3945 vport->port_state, tmo,
3946 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
3947 vport->fc_adisc_cnt);
3953 * Cancel rescue timer for Discovery / RSCN handling
3956 lpfc_can_disctmo(struct lpfc_vport *vport)
3958 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3959 unsigned long iflags;
3961 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3962 "can disc timer: state:x%x rtry:x%x flg:x%x",
3963 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
3965 /* Turn off discovery timer if its running */
3966 if (vport->fc_flag & FC_DISC_TMO) {
3967 spin_lock_irqsave(shost->host_lock, iflags);
3968 vport->fc_flag &= ~FC_DISC_TMO;
3969 spin_unlock_irqrestore(shost->host_lock, iflags);
3970 del_timer_sync(&vport->fc_disctmo);
3971 spin_lock_irqsave(&vport->work_port_lock, iflags);
3972 vport->work_port_events &= ~WORKER_DISC_TMO;
3973 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
3976 /* Cancel Discovery Timer state <hba_state> */
3977 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3978 "0248 Cancel Discovery Timer state x%x "
3979 "Data: x%x x%x x%x\n",
3980 vport->port_state, vport->fc_flag,
3981 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
3986 * Check specified ring for outstanding IOCB on the SLI queue
3987 * Return true if iocb matches the specified nport
3990 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
3991 struct lpfc_sli_ring *pring,
3992 struct lpfc_iocbq *iocb,
3993 struct lpfc_nodelist *ndlp)
3995 struct lpfc_sli *psli = &phba->sli;
3996 IOCB_t *icmd = &iocb->iocb;
3997 struct lpfc_vport *vport = ndlp->vport;
3999 if (iocb->vport != vport)
4002 if (pring->ringno == LPFC_ELS_RING) {
4003 switch (icmd->ulpCommand) {
4004 case CMD_GEN_REQUEST64_CR:
4005 if (iocb->context_un.ndlp == ndlp)
4007 case CMD_ELS_REQUEST64_CR:
4008 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
4010 case CMD_XMIT_ELS_RSP64_CX:
4011 if (iocb->context1 == (uint8_t *) ndlp)
4014 } else if (pring->ringno == psli->extra_ring) {
4016 } else if (pring->ringno == psli->fcp_ring) {
4017 /* Skip match check if waiting to relogin to FCP target */
4018 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4019 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
4022 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
4025 } else if (pring->ringno == psli->next_ring) {
4032 * Free resources / clean up outstanding I/Os
4033 * associated with nlp_rpi in the LPFC_NODELIST entry.
4036 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
4038 LIST_HEAD(completions);
4039 struct lpfc_sli *psli;
4040 struct lpfc_sli_ring *pring;
4041 struct lpfc_iocbq *iocb, *next_iocb;
4044 lpfc_fabric_abort_nport(ndlp);
4047 * Everything that matches on txcmplq will be returned
4048 * by firmware with a no rpi error.
4051 if (ndlp->nlp_flag & NLP_RPI_VALID) {
4052 /* Now process each ring */
4053 for (i = 0; i < psli->num_rings; i++) {
4054 pring = &psli->ring[i];
4056 spin_lock_irq(&phba->hbalock);
4057 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
4060 * Check to see if iocb matches the nport we are
4063 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
4065 /* It matches, so deque and call compl
4067 list_move_tail(&iocb->list,
4072 spin_unlock_irq(&phba->hbalock);
4076 /* Cancel all the IOCBs from the completions list */
4077 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4084 * Free rpi associated with LPFC_NODELIST entry.
4085 * This routine is called from lpfc_freenode(), when we are removing
4086 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4087 * LOGO that completes successfully, and we are waiting to PLOGI back
4088 * to the remote NPort. In addition, it is called after we receive
4089 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4090 * we are waiting to PLOGI back to the remote NPort.
4093 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4095 struct lpfc_hba *phba = vport->phba;
4099 if (ndlp->nlp_flag & NLP_RPI_VALID) {
4100 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4102 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
4103 mbox->vport = vport;
4104 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4105 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4106 if (rc == MBX_NOT_FINISHED)
4107 mempool_free(mbox, phba->mbox_mem_pool);
4109 lpfc_no_rpi(phba, ndlp);
4112 ndlp->nlp_flag &= ~NLP_RPI_VALID;
4113 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4120 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4121 * @phba: pointer to lpfc hba data structure.
4123 * This routine is invoked to unregister all the currently registered RPIs
4127 lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
4129 struct lpfc_vport **vports;
4130 struct lpfc_nodelist *ndlp;
4131 struct Scsi_Host *shost;
4134 vports = lpfc_create_vport_work_array(phba);
4136 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
4137 "2884 Vport array allocation failed \n");
4140 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4141 shost = lpfc_shost_from_vport(vports[i]);
4142 spin_lock_irq(shost->host_lock);
4143 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
4144 if (ndlp->nlp_flag & NLP_RPI_VALID) {
4145 /* The mempool_alloc might sleep */
4146 spin_unlock_irq(shost->host_lock);
4147 lpfc_unreg_rpi(vports[i], ndlp);
4148 spin_lock_irq(shost->host_lock);
4151 spin_unlock_irq(shost->host_lock);
4153 lpfc_destroy_vport_work_array(phba, vports);
4157 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
4159 struct lpfc_hba *phba = vport->phba;
4163 if (phba->sli_rev == LPFC_SLI_REV4) {
4164 lpfc_sli4_unreg_all_rpis(vport);
4168 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4170 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
4171 mbox->vport = vport;
4172 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4173 mbox->context1 = NULL;
4174 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
4175 if (rc != MBX_TIMEOUT)
4176 mempool_free(mbox, phba->mbox_mem_pool);
4178 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4179 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4180 "1836 Could not issue "
4181 "unreg_login(all_rpis) status %d\n", rc);
4186 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
4188 struct lpfc_hba *phba = vport->phba;
4192 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4194 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
4195 mbox->vport = vport;
4196 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4197 mbox->context1 = NULL;
4198 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
4199 if (rc != MBX_TIMEOUT)
4200 mempool_free(mbox, phba->mbox_mem_pool);
4202 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4203 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4204 "1815 Could not issue "
4205 "unreg_did (default rpis) status %d\n",
4211 * Free resources associated with LPFC_NODELIST entry
4212 * so it can be freed.
4215 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4217 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4218 struct lpfc_hba *phba = vport->phba;
4219 LPFC_MBOXQ_t *mb, *nextmb;
4220 struct lpfc_dmabuf *mp;
4222 /* Cleanup node for NPort <nlp_DID> */
4223 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4224 "0900 Cleanup node for NPort x%x "
4225 "Data: x%x x%x x%x\n",
4226 ndlp->nlp_DID, ndlp->nlp_flag,
4227 ndlp->nlp_state, ndlp->nlp_rpi);
4228 if (NLP_CHK_FREE_REQ(ndlp)) {
4229 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4230 "0280 lpfc_cleanup_node: ndlp:x%p "
4231 "usgmap:x%x refcnt:%d\n",
4232 (void *)ndlp, ndlp->nlp_usg_map,
4233 atomic_read(&ndlp->kref.refcount));
4234 lpfc_dequeue_node(vport, ndlp);
4236 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4237 "0281 lpfc_cleanup_node: ndlp:x%p "
4238 "usgmap:x%x refcnt:%d\n",
4239 (void *)ndlp, ndlp->nlp_usg_map,
4240 atomic_read(&ndlp->kref.refcount));
4241 lpfc_disable_node(vport, ndlp);
4244 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
4245 if ((mb = phba->sli.mbox_active)) {
4246 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
4247 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
4248 mb->context2 = NULL;
4249 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4253 spin_lock_irq(&phba->hbalock);
4254 /* Cleanup REG_LOGIN completions which are not yet processed */
4255 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
4256 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
4257 (ndlp != (struct lpfc_nodelist *) mb->context2))
4260 mb->context2 = NULL;
4261 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4264 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
4265 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
4266 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
4267 mp = (struct lpfc_dmabuf *) (mb->context1);
4269 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
4272 list_del(&mb->list);
4273 if (phba->sli_rev == LPFC_SLI_REV4)
4274 lpfc_sli4_free_rpi(phba,
4275 mb->u.mb.un.varRegLogin.rpi);
4276 mempool_free(mb, phba->mbox_mem_pool);
4277 /* We shall not invoke the lpfc_nlp_put to decrement
4278 * the ndlp reference count as we are in the process
4279 * of lpfc_nlp_release.
4283 spin_unlock_irq(&phba->hbalock);
4285 lpfc_els_abort(phba, ndlp);
4287 spin_lock_irq(shost->host_lock);
4288 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
4289 spin_unlock_irq(shost->host_lock);
4291 ndlp->nlp_last_elscmd = 0;
4292 del_timer_sync(&ndlp->nlp_delayfunc);
4294 list_del_init(&ndlp->els_retry_evt.evt_listp);
4295 list_del_init(&ndlp->dev_loss_evt.evt_listp);
4297 lpfc_unreg_rpi(vport, ndlp);
4303 * Check to see if we can free the nlp back to the freelist.
4304 * If we are in the middle of using the nlp in the discovery state
4305 * machine, defer the free till we reach the end of the state machine.
4308 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4310 struct lpfc_hba *phba = vport->phba;
4311 struct lpfc_rport_data *rdata;
4315 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4316 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
4317 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
4318 !(ndlp->nlp_flag & NLP_RPI_VALID)) {
4319 /* For this case we need to cleanup the default rpi
4320 * allocated by the firmware.
4322 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
4324 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
4325 (uint8_t *) &vport->fc_sparam, mbox, 0);
4327 mempool_free(mbox, phba->mbox_mem_pool);
4330 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
4331 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
4332 mbox->vport = vport;
4333 mbox->context2 = NULL;
4334 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4335 if (rc == MBX_NOT_FINISHED) {
4336 mempool_free(mbox, phba->mbox_mem_pool);
4341 lpfc_cleanup_node(vport, ndlp);
4344 * We can get here with a non-NULL ndlp->rport because when we
4345 * unregister a rport we don't break the rport/node linkage. So if we
4346 * do, make sure we don't leaving any dangling pointers behind.
4349 rdata = ndlp->rport->dd_data;
4350 rdata->pnode = NULL;
4356 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4359 D_ID mydid, ndlpdid, matchdid;
4361 if (did == Bcast_DID)
4364 /* First check for Direct match */
4365 if (ndlp->nlp_DID == did)
4368 /* Next check for area/domain identically equals 0 match */
4369 mydid.un.word = vport->fc_myDID;
4370 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
4374 matchdid.un.word = did;
4375 ndlpdid.un.word = ndlp->nlp_DID;
4376 if (matchdid.un.b.id == ndlpdid.un.b.id) {
4377 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
4378 (mydid.un.b.area == matchdid.un.b.area)) {
4379 if ((ndlpdid.un.b.domain == 0) &&
4380 (ndlpdid.un.b.area == 0)) {
4381 if (ndlpdid.un.b.id)
4387 matchdid.un.word = ndlp->nlp_DID;
4388 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
4389 (mydid.un.b.area == ndlpdid.un.b.area)) {
4390 if ((matchdid.un.b.domain == 0) &&
4391 (matchdid.un.b.area == 0)) {
4392 if (matchdid.un.b.id)
4400 /* Search for a nodelist entry */
4401 static struct lpfc_nodelist *
4402 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
4404 struct lpfc_nodelist *ndlp;
4407 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4408 if (lpfc_matchdid(vport, ndlp, did)) {
4409 data1 = (((uint32_t) ndlp->nlp_state << 24) |
4410 ((uint32_t) ndlp->nlp_xri << 16) |
4411 ((uint32_t) ndlp->nlp_type << 8) |
4412 ((uint32_t) ndlp->nlp_rpi & 0xff));
4413 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4414 "0929 FIND node DID "
4415 "Data: x%p x%x x%x x%x\n",
4416 ndlp, ndlp->nlp_DID,
4417 ndlp->nlp_flag, data1);
4422 /* FIND node did <did> NOT FOUND */
4423 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4424 "0932 FIND node did x%x NOT FOUND.\n", did);
4428 struct lpfc_nodelist *
4429 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
4431 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4432 struct lpfc_nodelist *ndlp;
4434 spin_lock_irq(shost->host_lock);
4435 ndlp = __lpfc_findnode_did(vport, did);
4436 spin_unlock_irq(shost->host_lock);
4440 struct lpfc_nodelist *
4441 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
4443 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4444 struct lpfc_nodelist *ndlp;
4446 ndlp = lpfc_findnode_did(vport, did);
4448 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
4449 lpfc_rscn_payload_check(vport, did) == 0)
4451 ndlp = (struct lpfc_nodelist *)
4452 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
4455 lpfc_nlp_init(vport, ndlp, did);
4456 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4457 spin_lock_irq(shost->host_lock);
4458 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4459 spin_unlock_irq(shost->host_lock);
4461 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4462 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
4465 spin_lock_irq(shost->host_lock);
4466 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4467 spin_unlock_irq(shost->host_lock);
4471 if ((vport->fc_flag & FC_RSCN_MODE) &&
4472 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
4473 if (lpfc_rscn_payload_check(vport, did)) {
4474 /* If we've already recieved a PLOGI from this NPort
4475 * we don't need to try to discover it again.
4477 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
4480 /* Since this node is marked for discovery,
4481 * delay timeout is not needed.
4483 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4484 spin_lock_irq(shost->host_lock);
4485 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4486 spin_unlock_irq(shost->host_lock);
4490 /* If we've already recieved a PLOGI from this NPort,
4491 * or we are already in the process of discovery on it,
4492 * we don't need to try to discover it again.
4494 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
4495 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
4496 ndlp->nlp_flag & NLP_RCV_PLOGI)
4498 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4499 spin_lock_irq(shost->host_lock);
4500 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4501 spin_unlock_irq(shost->host_lock);
4506 /* Build a list of nodes to discover based on the loopmap */
4508 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
4510 struct lpfc_hba *phba = vport->phba;
4512 uint32_t alpa, index;
4514 if (!lpfc_is_link_up(phba))
4517 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
4520 /* Check for loop map present or not */
4521 if (phba->alpa_map[0]) {
4522 for (j = 1; j <= phba->alpa_map[0]; j++) {
4523 alpa = phba->alpa_map[j];
4524 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
4526 lpfc_setup_disc_node(vport, alpa);
4529 /* No alpamap, so try all alpa's */
4530 for (j = 0; j < FC_MAXLOOP; j++) {
4531 /* If cfg_scan_down is set, start from highest
4532 * ALPA (0xef) to lowest (0x1).
4534 if (vport->cfg_scan_down)
4537 index = FC_MAXLOOP - j - 1;
4538 alpa = lpfcAlpaArray[index];
4539 if ((vport->fc_myDID & 0xff) == alpa)
4541 lpfc_setup_disc_node(vport, alpa);
4548 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
4551 struct lpfc_sli *psli = &phba->sli;
4552 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
4553 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
4554 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
4558 * if it's not a physical port or if we already send
4559 * clear_la then don't send it.
4561 if ((phba->link_state >= LPFC_CLEAR_LA) ||
4562 (vport->port_type != LPFC_PHYSICAL_PORT) ||
4563 (phba->sli_rev == LPFC_SLI_REV4))
4566 /* Link up discovery */
4567 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
4568 phba->link_state = LPFC_CLEAR_LA;
4569 lpfc_clear_la(phba, mbox);
4570 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
4571 mbox->vport = vport;
4572 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4573 if (rc == MBX_NOT_FINISHED) {
4574 mempool_free(mbox, phba->mbox_mem_pool);
4575 lpfc_disc_flush_list(vport);
4576 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4577 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4578 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4579 phba->link_state = LPFC_HBA_ERROR;
4584 /* Reg_vpi to tell firmware to resume normal operations */
4586 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
4588 LPFC_MBOXQ_t *regvpimbox;
4590 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4592 lpfc_reg_vpi(vport, regvpimbox);
4593 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
4594 regvpimbox->vport = vport;
4595 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
4596 == MBX_NOT_FINISHED) {
4597 mempool_free(regvpimbox, phba->mbox_mem_pool);
4602 /* Start Link up / RSCN discovery on NPR nodes */
4604 lpfc_disc_start(struct lpfc_vport *vport)
4606 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4607 struct lpfc_hba *phba = vport->phba;
4609 uint32_t clear_la_pending;
4612 if (!lpfc_is_link_up(phba))
4615 if (phba->link_state == LPFC_CLEAR_LA)
4616 clear_la_pending = 1;
4618 clear_la_pending = 0;
4620 if (vport->port_state < LPFC_VPORT_READY)
4621 vport->port_state = LPFC_DISC_AUTH;
4623 lpfc_set_disctmo(vport);
4625 if (vport->fc_prevDID == vport->fc_myDID)
4630 vport->fc_prevDID = vport->fc_myDID;
4631 vport->num_disc_nodes = 0;
4633 /* Start Discovery state <hba_state> */
4634 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4635 "0202 Start Discovery hba state x%x "
4636 "Data: x%x x%x x%x\n",
4637 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
4638 vport->fc_adisc_cnt);
4640 /* First do ADISCs - if any */
4641 num_sent = lpfc_els_disc_adisc(vport);
4647 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
4648 * continue discovery.
4650 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
4651 !(vport->fc_flag & FC_PT2PT) &&
4652 !(vport->fc_flag & FC_RSCN_MODE) &&
4653 (phba->sli_rev < LPFC_SLI_REV4)) {
4654 lpfc_issue_reg_vpi(phba, vport);
4659 * For SLI2, we need to set port_state to READY and continue
4662 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
4663 /* If we get here, there is nothing to ADISC */
4664 if (vport->port_type == LPFC_PHYSICAL_PORT)
4665 lpfc_issue_clear_la(phba, vport);
4667 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
4668 vport->num_disc_nodes = 0;
4669 /* go thru NPR nodes and issue ELS PLOGIs */
4670 if (vport->fc_npr_cnt)
4671 lpfc_els_disc_plogi(vport);
4673 if (!vport->num_disc_nodes) {
4674 spin_lock_irq(shost->host_lock);
4675 vport->fc_flag &= ~FC_NDISC_ACTIVE;
4676 spin_unlock_irq(shost->host_lock);
4677 lpfc_can_disctmo(vport);
4680 vport->port_state = LPFC_VPORT_READY;
4682 /* Next do PLOGIs - if any */
4683 num_sent = lpfc_els_disc_plogi(vport);
4688 if (vport->fc_flag & FC_RSCN_MODE) {
4689 /* Check to see if more RSCNs came in while we
4690 * were processing this one.
4692 if ((vport->fc_rscn_id_cnt == 0) &&
4693 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
4694 spin_lock_irq(shost->host_lock);
4695 vport->fc_flag &= ~FC_RSCN_MODE;
4696 spin_unlock_irq(shost->host_lock);
4697 lpfc_can_disctmo(vport);
4699 lpfc_els_handle_rscn(vport);
4706 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
4707 * ring the match the sppecified nodelist.
4710 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
4712 LIST_HEAD(completions);
4713 struct lpfc_sli *psli;
4715 struct lpfc_iocbq *iocb, *next_iocb;
4716 struct lpfc_sli_ring *pring;
4719 pring = &psli->ring[LPFC_ELS_RING];
4721 /* Error matching iocb on txq or txcmplq
4722 * First check the txq.
4724 spin_lock_irq(&phba->hbalock);
4725 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
4726 if (iocb->context1 != ndlp) {
4730 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
4731 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
4733 list_move_tail(&iocb->list, &completions);
4738 /* Next check the txcmplq */
4739 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
4740 if (iocb->context1 != ndlp) {
4744 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
4745 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
4746 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
4749 spin_unlock_irq(&phba->hbalock);
4751 /* Cancel all the IOCBs from the completions list */
4752 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4757 lpfc_disc_flush_list(struct lpfc_vport *vport)
4759 struct lpfc_nodelist *ndlp, *next_ndlp;
4760 struct lpfc_hba *phba = vport->phba;
4762 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
4763 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
4765 if (!NLP_CHK_NODE_ACT(ndlp))
4767 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
4768 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
4769 lpfc_free_tx(phba, ndlp);
4776 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
4778 lpfc_els_flush_rscn(vport);
4779 lpfc_els_flush_cmd(vport);
4780 lpfc_disc_flush_list(vport);
4783 /*****************************************************************************/
4785 * NAME: lpfc_disc_timeout
4787 * FUNCTION: Fibre Channel driver discovery timeout routine.
4789 * EXECUTION ENVIRONMENT: interrupt only
4797 /*****************************************************************************/
4799 lpfc_disc_timeout(unsigned long ptr)
4801 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
4802 struct lpfc_hba *phba = vport->phba;
4803 uint32_t tmo_posted;
4804 unsigned long flags = 0;
4806 if (unlikely(!phba))
4809 spin_lock_irqsave(&vport->work_port_lock, flags);
4810 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
4812 vport->work_port_events |= WORKER_DISC_TMO;
4813 spin_unlock_irqrestore(&vport->work_port_lock, flags);
4816 lpfc_worker_wake_up(phba);
4821 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
4823 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4824 struct lpfc_hba *phba = vport->phba;
4825 struct lpfc_sli *psli = &phba->sli;
4826 struct lpfc_nodelist *ndlp, *next_ndlp;
4827 LPFC_MBOXQ_t *initlinkmbox;
4828 int rc, clrlaerr = 0;
4830 if (!(vport->fc_flag & FC_DISC_TMO))
4833 spin_lock_irq(shost->host_lock);
4834 vport->fc_flag &= ~FC_DISC_TMO;
4835 spin_unlock_irq(shost->host_lock);
4837 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4838 "disc timeout: state:x%x rtry:x%x flg:x%x",
4839 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
4841 switch (vport->port_state) {
4843 case LPFC_LOCAL_CFG_LINK:
4844 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
4848 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
4849 "0221 FAN timeout\n");
4850 /* Start discovery by sending FLOGI, clean up old rpis */
4851 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
4853 if (!NLP_CHK_NODE_ACT(ndlp))
4855 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
4857 if (ndlp->nlp_type & NLP_FABRIC) {
4858 /* Clean up the ndlp on Fabric connections */
4859 lpfc_drop_node(vport, ndlp);
4861 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
4862 /* Fail outstanding IO now since device
4863 * is marked for PLOGI.
4865 lpfc_unreg_rpi(vport, ndlp);
4868 if (vport->port_state != LPFC_FLOGI) {
4869 if (phba->sli_rev <= LPFC_SLI_REV3)
4870 lpfc_initial_flogi(vport);
4872 lpfc_issue_init_vfi(vport);
4879 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
4880 /* Initial FLOGI timeout */
4881 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4882 "0222 Initial %s timeout\n",
4883 vport->vpi ? "FDISC" : "FLOGI");
4885 /* Assume no Fabric and go on with discovery.
4886 * Check for outstanding ELS FLOGI to abort.
4889 /* FLOGI failed, so just use loop map to make discovery list */
4890 lpfc_disc_list_loopmap(vport);
4892 /* Start discovery */
4893 lpfc_disc_start(vport);
4896 case LPFC_FABRIC_CFG_LINK:
4897 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
4899 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4900 "0223 Timeout while waiting for "
4901 "NameServer login\n");
4902 /* Next look for NameServer ndlp */
4903 ndlp = lpfc_findnode_did(vport, NameServer_DID);
4904 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
4905 lpfc_els_abort(phba, ndlp);
4907 /* ReStart discovery */
4911 /* Check for wait for NameServer Rsp timeout */
4912 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4913 "0224 NameServer Query timeout "
4915 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
4917 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
4918 /* Try it one more time */
4919 vport->fc_ns_retry++;
4920 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
4921 vport->fc_ns_retry, 0);
4925 vport->fc_ns_retry = 0;
4929 * Discovery is over.
4930 * set port_state to PORT_READY if SLI2.
4931 * cmpl_reg_vpi will set port_state to READY for SLI3.
4933 if (phba->sli_rev < LPFC_SLI_REV4) {
4934 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
4935 lpfc_issue_reg_vpi(phba, vport);
4936 else { /* NPIV Not enabled */
4937 lpfc_issue_clear_la(phba, vport);
4938 vport->port_state = LPFC_VPORT_READY;
4942 /* Setup and issue mailbox INITIALIZE LINK command */
4943 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4944 if (!initlinkmbox) {
4945 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4946 "0206 Device Discovery "
4947 "completion error\n");
4948 phba->link_state = LPFC_HBA_ERROR;
4952 lpfc_linkdown(phba);
4953 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
4954 phba->cfg_link_speed);
4955 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
4956 initlinkmbox->vport = vport;
4957 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4958 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
4959 lpfc_set_loopback_flag(phba);
4960 if (rc == MBX_NOT_FINISHED)
4961 mempool_free(initlinkmbox, phba->mbox_mem_pool);
4965 case LPFC_DISC_AUTH:
4966 /* Node Authentication timeout */
4967 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4968 "0227 Node Authentication timeout\n");
4969 lpfc_disc_flush_list(vport);
4972 * set port_state to PORT_READY if SLI2.
4973 * cmpl_reg_vpi will set port_state to READY for SLI3.
4975 if (phba->sli_rev < LPFC_SLI_REV4) {
4976 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
4977 lpfc_issue_reg_vpi(phba, vport);
4978 else { /* NPIV Not enabled */
4979 lpfc_issue_clear_la(phba, vport);
4980 vport->port_state = LPFC_VPORT_READY;
4985 case LPFC_VPORT_READY:
4986 if (vport->fc_flag & FC_RSCN_MODE) {
4987 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4988 "0231 RSCN timeout Data: x%x "
4990 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
4992 /* Cleanup any outstanding ELS commands */
4993 lpfc_els_flush_cmd(vport);
4995 lpfc_els_flush_rscn(vport);
4996 lpfc_disc_flush_list(vport);
5001 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5002 "0273 Unexpected discovery timeout, "
5003 "vport State x%x\n", vport->port_state);
5007 switch (phba->link_state) {
5009 /* CLEAR LA timeout */
5010 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5011 "0228 CLEAR LA timeout\n");
5016 lpfc_issue_clear_la(phba, vport);
5018 case LPFC_LINK_UNKNOWN:
5019 case LPFC_WARM_START:
5020 case LPFC_INIT_START:
5021 case LPFC_INIT_MBX_CMDS:
5022 case LPFC_LINK_DOWN:
5023 case LPFC_HBA_ERROR:
5024 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5025 "0230 Unexpected timeout, hba link "
5026 "state x%x\n", phba->link_state);
5030 case LPFC_HBA_READY:
5035 lpfc_disc_flush_list(vport);
5036 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
5037 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
5038 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
5039 vport->port_state = LPFC_VPORT_READY;
5046 * This routine handles processing a NameServer REG_LOGIN mailbox
5047 * command upon completion. It is setup in the LPFC_MBOXQ
5048 * as the completion routine when the command is
5049 * handed off to the SLI layer.
5052 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5054 MAILBOX_t *mb = &pmb->u.mb;
5055 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
5056 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
5057 struct lpfc_vport *vport = pmb->vport;
5059 pmb->context1 = NULL;
5060 pmb->context2 = NULL;
5062 ndlp->nlp_rpi = mb->un.varWords[0];
5063 ndlp->nlp_flag |= NLP_RPI_VALID;
5064 ndlp->nlp_type |= NLP_FABRIC;
5065 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
5068 * Start issuing Fabric-Device Management Interface (FDMI) command to
5069 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
5070 * fdmi-on=2 (supporting RPA/hostnmae)
5073 if (vport->cfg_fdmi_on == 1)
5074 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
5076 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
5078 /* decrement the node reference count held for this callback
5082 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5084 mempool_free(pmb, phba->mbox_mem_pool);
5090 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
5092 uint16_t *rpi = param;
5094 return ndlp->nlp_rpi == *rpi;
5098 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
5100 return memcmp(&ndlp->nlp_portname, param,
5101 sizeof(ndlp->nlp_portname)) == 0;
5104 static struct lpfc_nodelist *
5105 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
5107 struct lpfc_nodelist *ndlp;
5109 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5110 if (filter(ndlp, param))
5117 * This routine looks up the ndlp lists for the given RPI. If rpi found it
5118 * returns the node list element pointer else return NULL.
5120 struct lpfc_nodelist *
5121 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
5123 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
5127 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
5128 * returns the node element list pointer else return NULL.
5130 struct lpfc_nodelist *
5131 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
5133 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5134 struct lpfc_nodelist *ndlp;
5136 spin_lock_irq(shost->host_lock);
5137 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
5138 spin_unlock_irq(shost->host_lock);
5143 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
5146 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
5148 lpfc_initialize_node(vport, ndlp, did);
5149 INIT_LIST_HEAD(&ndlp->nlp_listp);
5151 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
5152 "node init: did:x%x",
5153 ndlp->nlp_DID, 0, 0);
5158 /* This routine releases all resources associated with a specifc NPort's ndlp
5159 * and mempool_free's the nodelist.
5162 lpfc_nlp_release(struct kref *kref)
5164 struct lpfc_hba *phba;
5165 unsigned long flags;
5166 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
5169 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5170 "node release: did:x%x flg:x%x type:x%x",
5171 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
5173 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
5174 "0279 lpfc_nlp_release: ndlp:x%p "
5175 "usgmap:x%x refcnt:%d\n",
5176 (void *)ndlp, ndlp->nlp_usg_map,
5177 atomic_read(&ndlp->kref.refcount));
5179 /* remove ndlp from action. */
5180 lpfc_nlp_remove(ndlp->vport, ndlp);
5182 /* clear the ndlp active flag for all release cases */
5184 spin_lock_irqsave(&phba->ndlp_lock, flags);
5185 NLP_CLR_NODE_ACT(ndlp);
5186 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5188 /* free ndlp memory for final ndlp release */
5189 if (NLP_CHK_FREE_REQ(ndlp)) {
5190 kfree(ndlp->lat_data);
5191 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
5195 /* This routine bumps the reference count for a ndlp structure to ensure
5196 * that one discovery thread won't free a ndlp while another discovery thread
5199 struct lpfc_nodelist *
5200 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
5202 struct lpfc_hba *phba;
5203 unsigned long flags;
5206 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5207 "node get: did:x%x flg:x%x refcnt:x%x",
5208 ndlp->nlp_DID, ndlp->nlp_flag,
5209 atomic_read(&ndlp->kref.refcount));
5210 /* The check of ndlp usage to prevent incrementing the
5211 * ndlp reference count that is in the process of being
5215 spin_lock_irqsave(&phba->ndlp_lock, flags);
5216 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
5217 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5218 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5219 "0276 lpfc_nlp_get: ndlp:x%p "
5220 "usgmap:x%x refcnt:%d\n",
5221 (void *)ndlp, ndlp->nlp_usg_map,
5222 atomic_read(&ndlp->kref.refcount));
5225 kref_get(&ndlp->kref);
5226 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5231 /* This routine decrements the reference count for a ndlp structure. If the
5232 * count goes to 0, this indicates the the associated nodelist should be
5233 * freed. Returning 1 indicates the ndlp resource has been released; on the
5234 * other hand, returning 0 indicates the ndlp resource has not been released
5238 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
5240 struct lpfc_hba *phba;
5241 unsigned long flags;
5246 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5247 "node put: did:x%x flg:x%x refcnt:x%x",
5248 ndlp->nlp_DID, ndlp->nlp_flag,
5249 atomic_read(&ndlp->kref.refcount));
5251 spin_lock_irqsave(&phba->ndlp_lock, flags);
5252 /* Check the ndlp memory free acknowledge flag to avoid the
5253 * possible race condition that kref_put got invoked again
5254 * after previous one has done ndlp memory free.
5256 if (NLP_CHK_FREE_ACK(ndlp)) {
5257 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5258 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5259 "0274 lpfc_nlp_put: ndlp:x%p "
5260 "usgmap:x%x refcnt:%d\n",
5261 (void *)ndlp, ndlp->nlp_usg_map,
5262 atomic_read(&ndlp->kref.refcount));
5265 /* Check the ndlp inactivate log flag to avoid the possible
5266 * race condition that kref_put got invoked again after ndlp
5267 * is already in inactivating state.
5269 if (NLP_CHK_IACT_REQ(ndlp)) {
5270 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5271 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5272 "0275 lpfc_nlp_put: ndlp:x%p "
5273 "usgmap:x%x refcnt:%d\n",
5274 (void *)ndlp, ndlp->nlp_usg_map,
5275 atomic_read(&ndlp->kref.refcount));
5278 /* For last put, mark the ndlp usage flags to make sure no
5279 * other kref_get and kref_put on the same ndlp shall get
5280 * in between the process when the final kref_put has been
5281 * invoked on this ndlp.
5283 if (atomic_read(&ndlp->kref.refcount) == 1) {
5284 /* Indicate ndlp is put to inactive state. */
5285 NLP_SET_IACT_REQ(ndlp);
5286 /* Acknowledge ndlp memory free has been seen. */
5287 if (NLP_CHK_FREE_REQ(ndlp))
5288 NLP_SET_FREE_ACK(ndlp);
5290 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5291 /* Note, the kref_put returns 1 when decrementing a reference
5292 * count that was 1, it invokes the release callback function,
5293 * but it still left the reference count as 1 (not actually
5294 * performs the last decrementation). Otherwise, it actually
5295 * decrements the reference count and returns 0.
5297 return kref_put(&ndlp->kref, lpfc_nlp_release);
5300 /* This routine free's the specified nodelist if it is not in use
5301 * by any other discovery thread. This routine returns 1 if the
5302 * ndlp has been freed. A return value of 0 indicates the ndlp is
5303 * not yet been released.
5306 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
5308 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5309 "node not used: did:x%x flg:x%x refcnt:x%x",
5310 ndlp->nlp_DID, ndlp->nlp_flag,
5311 atomic_read(&ndlp->kref.refcount));
5312 if (atomic_read(&ndlp->kref.refcount) == 1)
5313 if (lpfc_nlp_put(ndlp))
5319 * lpfc_fcf_inuse - Check if FCF can be unregistered.
5320 * @phba: Pointer to hba context object.
5322 * This function iterate through all FC nodes associated
5323 * will all vports to check if there is any node with
5324 * fc_rports associated with it. If there is an fc_rport
5325 * associated with the node, then the node is either in
5326 * discovered state or its devloss_timer is pending.
5329 lpfc_fcf_inuse(struct lpfc_hba *phba)
5331 struct lpfc_vport **vports;
5333 struct lpfc_nodelist *ndlp;
5334 struct Scsi_Host *shost;
5336 vports = lpfc_create_vport_work_array(phba);
5338 /* If driver cannot allocate memory, indicate fcf is in use */
5342 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
5343 shost = lpfc_shost_from_vport(vports[i]);
5344 spin_lock_irq(shost->host_lock);
5345 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
5346 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
5347 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
5349 spin_unlock_irq(shost->host_lock);
5352 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
5353 "2624 RPI %x DID %x flg %x still "
5355 ndlp->nlp_rpi, ndlp->nlp_DID,
5357 if (ndlp->nlp_flag & NLP_RPI_VALID)
5361 spin_unlock_irq(shost->host_lock);
5364 lpfc_destroy_vport_work_array(phba, vports);
5369 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
5370 * @phba: Pointer to hba context object.
5371 * @mboxq: Pointer to mailbox object.
5373 * This function frees memory associated with the mailbox command.
5376 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5378 struct lpfc_vport *vport = mboxq->vport;
5379 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5381 if (mboxq->u.mb.mbxStatus) {
5382 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5383 "2555 UNREG_VFI mbxStatus error x%x "
5385 mboxq->u.mb.mbxStatus, vport->port_state);
5387 spin_lock_irq(shost->host_lock);
5388 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
5389 spin_unlock_irq(shost->host_lock);
5390 mempool_free(mboxq, phba->mbox_mem_pool);
5395 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
5396 * @phba: Pointer to hba context object.
5397 * @mboxq: Pointer to mailbox object.
5399 * This function frees memory associated with the mailbox command.
5402 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5404 struct lpfc_vport *vport = mboxq->vport;
5406 if (mboxq->u.mb.mbxStatus) {
5407 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5408 "2550 UNREG_FCFI mbxStatus error x%x "
5410 mboxq->u.mb.mbxStatus, vport->port_state);
5412 mempool_free(mboxq, phba->mbox_mem_pool);
5417 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
5418 * @phba: Pointer to hba context object.
5420 * This function prepare the HBA for unregistering the currently registered
5421 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
5425 lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
5428 struct lpfc_vport **vports;
5429 struct lpfc_nodelist *ndlp;
5430 struct Scsi_Host *shost;
5433 /* Unregister RPIs */
5434 if (lpfc_fcf_inuse(phba))
5435 lpfc_unreg_hba_rpis(phba);
5437 /* At this point, all discovery is aborted */
5438 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
5440 /* Unregister VPIs */
5441 vports = lpfc_create_vport_work_array(phba);
5442 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
5443 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
5444 /* Stop FLOGI/FDISC retries */
5445 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
5447 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
5448 lpfc_cleanup_pending_mbox(vports[i]);
5449 if (phba->sli_rev == LPFC_SLI_REV4)
5450 lpfc_sli4_unreg_all_rpis(vports[i]);
5451 lpfc_mbx_unreg_vpi(vports[i]);
5452 shost = lpfc_shost_from_vport(vports[i]);
5453 spin_lock_irq(shost->host_lock);
5454 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
5455 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
5456 spin_unlock_irq(shost->host_lock);
5458 lpfc_destroy_vport_work_array(phba, vports);
5460 /* Cleanup any outstanding ELS commands */
5461 lpfc_els_flush_all_cmd(phba);
5463 /* Unregister VFI */
5464 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5466 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5467 "2556 UNREG_VFI mbox allocation failed"
5468 "HBA state x%x\n", phba->pport->port_state);
5472 lpfc_unreg_vfi(mbox, phba->pport);
5473 mbox->vport = phba->pport;
5474 mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl;
5476 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5477 if (rc == MBX_NOT_FINISHED) {
5478 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5479 "2557 UNREG_VFI issue mbox failed rc x%x "
5481 rc, phba->pport->port_state);
5482 mempool_free(mbox, phba->mbox_mem_pool);
5486 shost = lpfc_shost_from_vport(phba->pport);
5487 spin_lock_irq(shost->host_lock);
5488 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
5489 spin_unlock_irq(shost->host_lock);
5495 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
5496 * @phba: Pointer to hba context object.
5498 * This function issues synchronous unregister FCF mailbox command to HBA to
5499 * unregister the currently registered FCF record. The driver does not reset
5500 * the driver FCF usage state flags.
5502 * Return 0 if successfully issued, none-zero otherwise.
5505 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
5510 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5512 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5513 "2551 UNREG_FCFI mbox allocation failed"
5514 "HBA state x%x\n", phba->pport->port_state);
5517 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
5518 mbox->vport = phba->pport;
5519 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
5520 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5522 if (rc == MBX_NOT_FINISHED) {
5523 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5524 "2552 Unregister FCFI command failed rc x%x "
5526 rc, phba->pport->port_state);
5533 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
5534 * @phba: Pointer to hba context object.
5536 * This function unregisters the currently reigstered FCF. This function
5537 * also tries to find another FCF for discovery by rescan the HBA FCF table.
5540 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
5544 /* Preparation for unregistering fcf */
5545 rc = lpfc_unregister_fcf_prep(phba);
5547 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
5548 "2748 Failed to prepare for unregistering "
5549 "HBA's FCF record: rc=%d\n", rc);
5553 /* Now, unregister FCF record and reset HBA FCF state */
5554 rc = lpfc_sli4_unregister_fcf(phba);
5557 /* Reset HBA FCF states after successful unregister FCF */
5558 phba->fcf.fcf_flag = 0;
5559 phba->fcf.current_rec.flag = 0;
5562 * If driver is not unloading, check if there is any other
5563 * FCF record that can be used for discovery.
5565 if ((phba->pport->load_flag & FC_UNLOADING) ||
5566 (phba->link_state < LPFC_LINK_UP))
5569 /* This is considered as the initial FCF discovery scan */
5570 spin_lock_irq(&phba->hbalock);
5571 phba->fcf.fcf_flag |= FCF_INIT_DISC;
5572 spin_unlock_irq(&phba->hbalock);
5574 /* Reset FCF roundrobin bmask for new discovery */
5575 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
5577 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5580 spin_lock_irq(&phba->hbalock);
5581 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
5582 spin_unlock_irq(&phba->hbalock);
5583 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5584 "2553 lpfc_unregister_unused_fcf failed "
5585 "to read FCF record HBA state x%x\n",
5586 phba->pport->port_state);
5591 * lpfc_unregister_fcf - Unregister the currently registered fcf record
5592 * @phba: Pointer to hba context object.
5594 * This function just unregisters the currently reigstered FCF. It does not
5595 * try to find another FCF for discovery.
5598 lpfc_unregister_fcf(struct lpfc_hba *phba)
5602 /* Preparation for unregistering fcf */
5603 rc = lpfc_unregister_fcf_prep(phba);
5605 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
5606 "2749 Failed to prepare for unregistering "
5607 "HBA's FCF record: rc=%d\n", rc);
5611 /* Now, unregister FCF record and reset HBA FCF state */
5612 rc = lpfc_sli4_unregister_fcf(phba);
5615 /* Set proper HBA FCF states after successful unregister FCF */
5616 spin_lock_irq(&phba->hbalock);
5617 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
5618 spin_unlock_irq(&phba->hbalock);
5622 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
5623 * @phba: Pointer to hba context object.
5625 * This function check if there are any connected remote port for the FCF and
5626 * if all the devices are disconnected, this function unregister FCFI.
5627 * This function also tries to use another FCF for discovery.
5630 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
5633 * If HBA is not running in FIP mode, if HBA does not support
5634 * FCoE, if FCF discovery is ongoing, or if FCF has not been
5635 * registered, do nothing.
5637 spin_lock_irq(&phba->hbalock);
5638 if (!(phba->hba_flag & HBA_FCOE_MODE) ||
5639 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
5640 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
5641 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
5642 (phba->pport->port_state == LPFC_FLOGI)) {
5643 spin_unlock_irq(&phba->hbalock);
5646 spin_unlock_irq(&phba->hbalock);
5648 if (lpfc_fcf_inuse(phba))
5651 lpfc_unregister_fcf_rescan(phba);
5655 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
5656 * @phba: Pointer to hba context object.
5657 * @buff: Buffer containing the FCF connection table as in the config
5659 * This function create driver data structure for the FCF connection
5660 * record table read from config region 23.
5663 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
5666 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5667 struct lpfc_fcf_conn_hdr *conn_hdr;
5668 struct lpfc_fcf_conn_rec *conn_rec;
5669 uint32_t record_count;
5672 /* Free the current connect table */
5673 list_for_each_entry_safe(conn_entry, next_conn_entry,
5674 &phba->fcf_conn_rec_list, list) {
5675 list_del_init(&conn_entry->list);
5679 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
5680 record_count = conn_hdr->length * sizeof(uint32_t)/
5681 sizeof(struct lpfc_fcf_conn_rec);
5683 conn_rec = (struct lpfc_fcf_conn_rec *)
5684 (buff + sizeof(struct lpfc_fcf_conn_hdr));
5686 for (i = 0; i < record_count; i++) {
5687 if (!(conn_rec[i].flags & FCFCNCT_VALID))
5689 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
5692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5693 "2566 Failed to allocate connection"
5698 memcpy(&conn_entry->conn_rec, &conn_rec[i],
5699 sizeof(struct lpfc_fcf_conn_rec));
5700 conn_entry->conn_rec.vlan_tag =
5701 le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF;
5702 conn_entry->conn_rec.flags =
5703 le16_to_cpu(conn_entry->conn_rec.flags);
5704 list_add_tail(&conn_entry->list,
5705 &phba->fcf_conn_rec_list);
5710 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
5711 * @phba: Pointer to hba context object.
5712 * @buff: Buffer containing the FCoE parameter data structure.
5714 * This function update driver data structure with config
5715 * parameters read from config region 23.
5718 lpfc_read_fcoe_param(struct lpfc_hba *phba,
5721 struct lpfc_fip_param_hdr *fcoe_param_hdr;
5722 struct lpfc_fcoe_params *fcoe_param;
5724 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
5726 fcoe_param = (struct lpfc_fcoe_params *)
5727 (buff + sizeof(struct lpfc_fip_param_hdr));
5729 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
5730 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
5733 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
5734 phba->valid_vlan = 1;
5735 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
5739 phba->fc_map[0] = fcoe_param->fc_map[0];
5740 phba->fc_map[1] = fcoe_param->fc_map[1];
5741 phba->fc_map[2] = fcoe_param->fc_map[2];
5746 * lpfc_get_rec_conf23 - Get a record type in config region data.
5747 * @buff: Buffer containing config region 23 data.
5748 * @size: Size of the data buffer.
5749 * @rec_type: Record type to be searched.
5751 * This function searches config region data to find the begining
5752 * of the record specified by record_type. If record found, this
5753 * function return pointer to the record else return NULL.
5756 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
5758 uint32_t offset = 0, rec_length;
5760 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
5761 (size < sizeof(uint32_t)))
5764 rec_length = buff[offset + 1];
5767 * One TLV record has one word header and number of data words
5768 * specified in the rec_length field of the record header.
5770 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
5772 if (buff[offset] == rec_type)
5773 return &buff[offset];
5775 if (buff[offset] == LPFC_REGION23_LAST_REC)
5778 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
5779 rec_length = buff[offset + 1];
5785 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
5786 * @phba: Pointer to lpfc_hba data structure.
5787 * @buff: Buffer containing config region 23 data.
5788 * @size: Size of the data buffer.
5790 * This function parses the FCoE config parameters in config region 23 and
5791 * populate driver data structure with the parameters.
5794 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
5798 uint32_t offset = 0, rec_length;
5802 * If data size is less than 2 words signature and version cannot be
5805 if (size < 2*sizeof(uint32_t))
5808 /* Check the region signature first */
5809 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
5810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5811 "2567 Config region 23 has bad signature\n");
5817 /* Check the data structure version */
5818 if (buff[offset] != LPFC_REGION23_VERSION) {
5819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5820 "2568 Config region 23 has bad version\n");
5825 rec_length = buff[offset + 1];
5827 /* Read FCoE param record */
5828 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
5829 size - offset, FCOE_PARAM_TYPE);
5831 lpfc_read_fcoe_param(phba, rec_ptr);
5833 /* Read FCF connection table */
5834 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
5835 size - offset, FCOE_CONN_TBL_TYPE);
5837 lpfc_read_fcf_conn_tbl(phba, rec_ptr);