1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2012 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);
661 if (work_port_events & WORKER_DELAYED_DISC_TMO)
662 lpfc_delayed_disc_timeout_handler(vport);
664 lpfc_destroy_vport_work_array(phba, vports);
666 pring = &phba->sli.ring[LPFC_ELS_RING];
667 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
668 status >>= (4*LPFC_ELS_RING);
669 if ((status & HA_RXMASK) ||
670 (pring->flag & LPFC_DEFERRED_RING_EVENT) ||
671 (phba->hba_flag & HBA_SP_QUEUE_EVT)) {
672 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
673 pring->flag |= LPFC_DEFERRED_RING_EVENT;
674 /* Set the lpfc data pending flag */
675 set_bit(LPFC_DATA_READY, &phba->data_flags);
677 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
678 lpfc_sli_handle_slow_ring_event(phba, pring,
682 if ((phba->sli_rev == LPFC_SLI_REV4) && pring->txq_cnt)
683 lpfc_drain_txq(phba);
685 * Turn on Ring interrupts
687 if (phba->sli_rev <= LPFC_SLI_REV3) {
688 spin_lock_irq(&phba->hbalock);
689 control = readl(phba->HCregaddr);
690 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
691 lpfc_debugfs_slow_ring_trc(phba,
692 "WRK Enable ring: cntl:x%x hacopy:x%x",
693 control, ha_copy, 0);
695 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
696 writel(control, phba->HCregaddr);
697 readl(phba->HCregaddr); /* flush */
699 lpfc_debugfs_slow_ring_trc(phba,
700 "WRK Ring ok: cntl:x%x hacopy:x%x",
701 control, ha_copy, 0);
703 spin_unlock_irq(&phba->hbalock);
706 lpfc_work_list_done(phba);
710 lpfc_do_work(void *p)
712 struct lpfc_hba *phba = p;
715 set_user_nice(current, -20);
716 phba->data_flags = 0;
718 while (!kthread_should_stop()) {
719 /* wait and check worker queue activities */
720 rc = wait_event_interruptible(phba->work_waitq,
721 (test_and_clear_bit(LPFC_DATA_READY,
723 || kthread_should_stop()));
724 /* Signal wakeup shall terminate the worker thread */
726 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
727 "0433 Wakeup on signal: rc=x%x\n", rc);
731 /* Attend pending lpfc data processing */
732 lpfc_work_done(phba);
734 phba->worker_thread = NULL;
735 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
736 "0432 Worker thread stopped.\n");
741 * This is only called to handle FC worker events. Since this a rare
742 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
743 * embedding it in the IOCB.
746 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
749 struct lpfc_work_evt *evtp;
753 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
754 * be queued to worker thread for processing
756 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
760 evtp->evt_arg1 = arg1;
761 evtp->evt_arg2 = arg2;
764 spin_lock_irqsave(&phba->hbalock, flags);
765 list_add_tail(&evtp->evt_listp, &phba->work_list);
766 spin_unlock_irqrestore(&phba->hbalock, flags);
768 lpfc_worker_wake_up(phba);
774 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
776 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
777 struct lpfc_hba *phba = vport->phba;
778 struct lpfc_nodelist *ndlp, *next_ndlp;
781 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
782 if (!NLP_CHK_NODE_ACT(ndlp))
784 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
786 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
787 ((vport->port_type == LPFC_NPIV_PORT) &&
788 (ndlp->nlp_DID == NameServer_DID)))
789 lpfc_unreg_rpi(vport, ndlp);
791 /* Leave Fabric nodes alone on link down */
792 if ((phba->sli_rev < LPFC_SLI_REV4) &&
793 (!remove && ndlp->nlp_type & NLP_FABRIC))
795 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
798 : NLP_EVT_DEVICE_RECOVERY);
800 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
801 if (phba->sli_rev == LPFC_SLI_REV4)
802 lpfc_sli4_unreg_all_rpis(vport);
803 lpfc_mbx_unreg_vpi(vport);
804 spin_lock_irq(shost->host_lock);
805 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
806 spin_unlock_irq(shost->host_lock);
811 lpfc_port_link_failure(struct lpfc_vport *vport)
813 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
815 /* Cleanup any outstanding received buffers */
816 lpfc_cleanup_rcv_buffers(vport);
818 /* Cleanup any outstanding RSCN activity */
819 lpfc_els_flush_rscn(vport);
821 /* Cleanup any outstanding ELS commands */
822 lpfc_els_flush_cmd(vport);
824 lpfc_cleanup_rpis(vport, 0);
826 /* Turn off discovery timer if its running */
827 lpfc_can_disctmo(vport);
831 lpfc_linkdown_port(struct lpfc_vport *vport)
833 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
835 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
837 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
838 "Link Down: state:x%x rtry:x%x flg:x%x",
839 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
841 lpfc_port_link_failure(vport);
843 /* Stop delayed Nport discovery */
844 spin_lock_irq(shost->host_lock);
845 vport->fc_flag &= ~FC_DISC_DELAYED;
846 spin_unlock_irq(shost->host_lock);
847 del_timer_sync(&vport->delayed_disc_tmo);
851 lpfc_linkdown(struct lpfc_hba *phba)
853 struct lpfc_vport *vport = phba->pport;
854 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
855 struct lpfc_vport **vports;
859 if (phba->link_state == LPFC_LINK_DOWN)
862 /* Block all SCSI stack I/Os */
863 lpfc_scsi_dev_block(phba);
865 spin_lock_irq(&phba->hbalock);
866 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
867 spin_unlock_irq(&phba->hbalock);
868 if (phba->link_state > LPFC_LINK_DOWN) {
869 phba->link_state = LPFC_LINK_DOWN;
870 spin_lock_irq(shost->host_lock);
871 phba->pport->fc_flag &= ~FC_LBIT;
872 spin_unlock_irq(shost->host_lock);
874 vports = lpfc_create_vport_work_array(phba);
876 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
877 /* Issue a LINK DOWN event to all nodes */
878 lpfc_linkdown_port(vports[i]);
880 lpfc_destroy_vport_work_array(phba, vports);
881 /* Clean up any firmware default rpi's */
882 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
884 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
886 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
887 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
888 == MBX_NOT_FINISHED) {
889 mempool_free(mb, phba->mbox_mem_pool);
893 /* Setup myDID for link up if we are in pt2pt mode */
894 if (phba->pport->fc_flag & FC_PT2PT) {
895 phba->pport->fc_myDID = 0;
896 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
898 lpfc_config_link(phba, mb);
899 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
901 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
902 == MBX_NOT_FINISHED) {
903 mempool_free(mb, phba->mbox_mem_pool);
906 spin_lock_irq(shost->host_lock);
907 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
908 spin_unlock_irq(shost->host_lock);
915 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
917 struct lpfc_nodelist *ndlp;
919 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
920 if (!NLP_CHK_NODE_ACT(ndlp))
922 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
924 if (ndlp->nlp_type & NLP_FABRIC) {
925 /* On Linkup its safe to clean up the ndlp
926 * from Fabric connections.
928 if (ndlp->nlp_DID != Fabric_DID)
929 lpfc_unreg_rpi(vport, ndlp);
930 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
931 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
932 /* Fail outstanding IO now since device is
935 lpfc_unreg_rpi(vport, ndlp);
941 lpfc_linkup_port(struct lpfc_vport *vport)
943 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
944 struct lpfc_hba *phba = vport->phba;
946 if ((vport->load_flag & FC_UNLOADING) != 0)
949 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
950 "Link Up: top:x%x speed:x%x flg:x%x",
951 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
953 /* If NPIV is not enabled, only bring the physical port up */
954 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
955 (vport != phba->pport))
958 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
960 spin_lock_irq(shost->host_lock);
961 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
962 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
963 vport->fc_flag |= FC_NDISC_ACTIVE;
964 vport->fc_ns_retry = 0;
965 spin_unlock_irq(shost->host_lock);
967 if (vport->fc_flag & FC_LBIT)
968 lpfc_linkup_cleanup_nodes(vport);
973 lpfc_linkup(struct lpfc_hba *phba)
975 struct lpfc_vport **vports;
978 lpfc_cleanup_wt_rrqs(phba);
979 phba->link_state = LPFC_LINK_UP;
981 /* Unblock fabric iocbs if they are blocked */
982 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
983 del_timer_sync(&phba->fabric_block_timer);
985 vports = lpfc_create_vport_work_array(phba);
987 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
988 lpfc_linkup_port(vports[i]);
989 lpfc_destroy_vport_work_array(phba, vports);
990 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
991 (phba->sli_rev < LPFC_SLI_REV4))
992 lpfc_issue_clear_la(phba, phba->pport);
998 * This routine handles processing a CLEAR_LA mailbox
999 * command upon completion. It is setup in the LPFC_MBOXQ
1000 * as the completion routine when the command is
1001 * handed off to the SLI layer.
1004 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1006 struct lpfc_vport *vport = pmb->vport;
1007 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1008 struct lpfc_sli *psli = &phba->sli;
1009 MAILBOX_t *mb = &pmb->u.mb;
1012 /* Since we don't do discovery right now, turn these off here */
1013 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1014 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1015 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1017 /* Check for error */
1018 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
1019 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1020 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1021 "0320 CLEAR_LA mbxStatus error x%x hba "
1023 mb->mbxStatus, vport->port_state);
1024 phba->link_state = LPFC_HBA_ERROR;
1028 if (vport->port_type == LPFC_PHYSICAL_PORT)
1029 phba->link_state = LPFC_HBA_READY;
1031 spin_lock_irq(&phba->hbalock);
1032 psli->sli_flag |= LPFC_PROCESS_LA;
1033 control = readl(phba->HCregaddr);
1034 control |= HC_LAINT_ENA;
1035 writel(control, phba->HCregaddr);
1036 readl(phba->HCregaddr); /* flush */
1037 spin_unlock_irq(&phba->hbalock);
1038 mempool_free(pmb, phba->mbox_mem_pool);
1042 /* Device Discovery completes */
1043 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1044 "0225 Device Discovery completes\n");
1045 mempool_free(pmb, phba->mbox_mem_pool);
1047 spin_lock_irq(shost->host_lock);
1048 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
1049 spin_unlock_irq(shost->host_lock);
1051 lpfc_can_disctmo(vport);
1053 /* turn on Link Attention interrupts */
1055 spin_lock_irq(&phba->hbalock);
1056 psli->sli_flag |= LPFC_PROCESS_LA;
1057 control = readl(phba->HCregaddr);
1058 control |= HC_LAINT_ENA;
1059 writel(control, phba->HCregaddr);
1060 readl(phba->HCregaddr); /* flush */
1061 spin_unlock_irq(&phba->hbalock);
1068 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1070 struct lpfc_vport *vport = pmb->vport;
1072 if (pmb->u.mb.mbxStatus)
1075 mempool_free(pmb, phba->mbox_mem_pool);
1077 /* don't perform discovery for SLI4 loopback diagnostic test */
1078 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1079 !(phba->hba_flag & HBA_FCOE_MODE) &&
1080 (phba->link_flag & LS_LOOPBACK_MODE))
1083 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
1084 vport->fc_flag & FC_PUBLIC_LOOP &&
1085 !(vport->fc_flag & FC_LBIT)) {
1086 /* Need to wait for FAN - use discovery timer
1087 * for timeout. port_state is identically
1088 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1090 lpfc_set_disctmo(vport);
1094 /* Start discovery by sending a FLOGI. port_state is identically
1095 * LPFC_FLOGI while waiting for FLOGI cmpl
1097 if (vport->port_state != LPFC_FLOGI)
1098 lpfc_initial_flogi(vport);
1102 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1103 "0306 CONFIG_LINK mbxStatus error x%x "
1105 pmb->u.mb.mbxStatus, vport->port_state);
1106 mempool_free(pmb, phba->mbox_mem_pool);
1108 lpfc_linkdown(phba);
1110 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1111 "0200 CONFIG_LINK bad hba state x%x\n",
1114 lpfc_issue_clear_la(phba, vport);
1119 * lpfc_sli4_clear_fcf_rr_bmask
1120 * @phba pointer to the struct lpfc_hba for this port.
1121 * This fucnction resets the round robin bit mask and clears the
1122 * fcf priority list. The list deletions are done while holding the
1123 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1124 * from the lpfc_fcf_pri record.
1127 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
1129 struct lpfc_fcf_pri *fcf_pri;
1130 struct lpfc_fcf_pri *next_fcf_pri;
1131 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
1132 spin_lock_irq(&phba->hbalock);
1133 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
1134 &phba->fcf.fcf_pri_list, list) {
1135 list_del_init(&fcf_pri->list);
1136 fcf_pri->fcf_rec.flag = 0;
1138 spin_unlock_irq(&phba->hbalock);
1141 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1143 struct lpfc_vport *vport = mboxq->vport;
1145 if (mboxq->u.mb.mbxStatus) {
1146 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1147 "2017 REG_FCFI mbxStatus error x%x "
1149 mboxq->u.mb.mbxStatus, vport->port_state);
1153 /* Start FCoE discovery by sending a FLOGI. */
1154 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1155 /* Set the FCFI registered flag */
1156 spin_lock_irq(&phba->hbalock);
1157 phba->fcf.fcf_flag |= FCF_REGISTERED;
1158 spin_unlock_irq(&phba->hbalock);
1160 /* If there is a pending FCoE event, restart FCF table scan. */
1161 if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
1162 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
1165 /* Mark successful completion of FCF table scan */
1166 spin_lock_irq(&phba->hbalock);
1167 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1168 phba->hba_flag &= ~FCF_TS_INPROG;
1169 if (vport->port_state != LPFC_FLOGI) {
1170 phba->hba_flag |= FCF_RR_INPROG;
1171 spin_unlock_irq(&phba->hbalock);
1172 lpfc_issue_init_vfi(vport);
1175 spin_unlock_irq(&phba->hbalock);
1179 spin_lock_irq(&phba->hbalock);
1180 phba->hba_flag &= ~FCF_RR_INPROG;
1181 spin_unlock_irq(&phba->hbalock);
1183 mempool_free(mboxq, phba->mbox_mem_pool);
1187 * lpfc_fab_name_match - Check if the fcf fabric name match.
1188 * @fab_name: pointer to fabric name.
1189 * @new_fcf_record: pointer to fcf record.
1191 * This routine compare the fcf record's fabric name with provided
1192 * fabric name. If the fabric name are identical this function
1193 * returns 1 else return 0.
1196 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1198 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1200 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1202 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1204 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1206 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1208 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
1210 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1212 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1218 * lpfc_sw_name_match - Check if the fcf switch name match.
1219 * @fab_name: pointer to fabric name.
1220 * @new_fcf_record: pointer to fcf record.
1222 * This routine compare the fcf record's switch name with provided
1223 * switch name. If the switch name are identical this function
1224 * returns 1 else return 0.
1227 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1229 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1231 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1233 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
1235 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1237 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1239 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1241 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1243 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1249 * lpfc_mac_addr_match - Check if the fcf mac address match.
1250 * @mac_addr: pointer to mac address.
1251 * @new_fcf_record: pointer to fcf record.
1253 * This routine compare the fcf record's mac address with HBA's
1254 * FCF mac address. If the mac addresses are identical this function
1255 * returns 1 else return 0.
1258 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
1260 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1262 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1264 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1266 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1268 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1270 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
1276 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1278 return (curr_vlan_id == new_vlan_id);
1282 * lpfc_update_fcf_record - Update driver fcf record
1283 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1284 * @phba: pointer to lpfc hba data structure.
1285 * @fcf_index: Index for the lpfc_fcf_record.
1286 * @new_fcf_record: pointer to hba fcf record.
1288 * This routine updates the driver FCF priority record from the new HBA FCF
1289 * record. This routine is called with the host lock held.
1292 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
1293 struct fcf_record *new_fcf_record
1296 struct lpfc_fcf_pri *fcf_pri;
1298 fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1299 fcf_pri->fcf_rec.fcf_index = fcf_index;
1300 /* FCF record priority */
1301 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
1306 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1307 * @fcf: pointer to driver fcf record.
1308 * @new_fcf_record: pointer to fcf record.
1310 * This routine copies the FCF information from the FCF
1311 * record to lpfc_hba data structure.
1314 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1315 struct fcf_record *new_fcf_record)
1318 fcf_rec->fabric_name[0] =
1319 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
1320 fcf_rec->fabric_name[1] =
1321 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
1322 fcf_rec->fabric_name[2] =
1323 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
1324 fcf_rec->fabric_name[3] =
1325 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
1326 fcf_rec->fabric_name[4] =
1327 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
1328 fcf_rec->fabric_name[5] =
1329 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
1330 fcf_rec->fabric_name[6] =
1331 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
1332 fcf_rec->fabric_name[7] =
1333 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
1335 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1336 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1337 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1338 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1339 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1340 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1341 /* FCF record index */
1342 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1343 /* FCF record priority */
1344 fcf_rec->priority = new_fcf_record->fip_priority;
1346 fcf_rec->switch_name[0] =
1347 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
1348 fcf_rec->switch_name[1] =
1349 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
1350 fcf_rec->switch_name[2] =
1351 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
1352 fcf_rec->switch_name[3] =
1353 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
1354 fcf_rec->switch_name[4] =
1355 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
1356 fcf_rec->switch_name[5] =
1357 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
1358 fcf_rec->switch_name[6] =
1359 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
1360 fcf_rec->switch_name[7] =
1361 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
1365 * lpfc_update_fcf_record - Update driver fcf record
1366 * @phba: pointer to lpfc hba data structure.
1367 * @fcf_rec: pointer to driver fcf record.
1368 * @new_fcf_record: pointer to hba fcf record.
1369 * @addr_mode: address mode to be set to the driver fcf record.
1370 * @vlan_id: vlan tag to be set to the driver fcf record.
1371 * @flag: flag bits to be set to the driver fcf record.
1373 * This routine updates the driver FCF record from the new HBA FCF record
1374 * together with the address mode, vlan_id, and other informations. This
1375 * routine is called with the host lock held.
1378 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1379 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1380 uint16_t vlan_id, uint32_t flag)
1382 /* Copy the fields from the HBA's FCF record */
1383 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1384 /* Update other fields of driver FCF record */
1385 fcf_rec->addr_mode = addr_mode;
1386 fcf_rec->vlan_id = vlan_id;
1387 fcf_rec->flag |= (flag | RECORD_VALID);
1388 __lpfc_update_fcf_record_pri(phba,
1389 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
1394 * lpfc_register_fcf - Register the FCF with hba.
1395 * @phba: pointer to lpfc hba data structure.
1397 * This routine issues a register fcfi mailbox command to register
1401 lpfc_register_fcf(struct lpfc_hba *phba)
1403 LPFC_MBOXQ_t *fcf_mbxq;
1406 spin_lock_irq(&phba->hbalock);
1407 /* If the FCF is not available do nothing. */
1408 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
1409 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1410 spin_unlock_irq(&phba->hbalock);
1414 /* The FCF is already registered, start discovery */
1415 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
1416 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1417 phba->hba_flag &= ~FCF_TS_INPROG;
1418 if (phba->pport->port_state != LPFC_FLOGI) {
1419 phba->hba_flag |= FCF_RR_INPROG;
1420 spin_unlock_irq(&phba->hbalock);
1421 lpfc_initial_flogi(phba->pport);
1424 spin_unlock_irq(&phba->hbalock);
1427 spin_unlock_irq(&phba->hbalock);
1429 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1431 spin_lock_irq(&phba->hbalock);
1432 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1433 spin_unlock_irq(&phba->hbalock);
1437 lpfc_reg_fcfi(phba, fcf_mbxq);
1438 fcf_mbxq->vport = phba->pport;
1439 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1440 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
1441 if (rc == MBX_NOT_FINISHED) {
1442 spin_lock_irq(&phba->hbalock);
1443 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1444 spin_unlock_irq(&phba->hbalock);
1445 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
1452 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1453 * @phba: pointer to lpfc hba data structure.
1454 * @new_fcf_record: pointer to fcf record.
1455 * @boot_flag: Indicates if this record used by boot bios.
1456 * @addr_mode: The address mode to be used by this FCF
1457 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1459 * This routine compare the fcf record with connect list obtained from the
1460 * config region to decide if this FCF can be used for SAN discovery. It returns
1461 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1462 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1463 * is used by boot bios and addr_mode will indicate the addressing mode to be
1464 * used for this FCF when the function returns.
1465 * If the FCF record need to be used with a particular vlan id, the vlan is
1466 * set in the vlan_id on return of the function. If not VLAN tagging need to
1467 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1470 lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1471 struct fcf_record *new_fcf_record,
1472 uint32_t *boot_flag, uint32_t *addr_mode,
1475 struct lpfc_fcf_conn_entry *conn_entry;
1476 int i, j, fcf_vlan_id = 0;
1478 /* Find the lowest VLAN id in the FCF record */
1479 for (i = 0; i < 512; i++) {
1480 if (new_fcf_record->vlan_bitmap[i]) {
1481 fcf_vlan_id = i * 8;
1483 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1491 /* If FCF not available return 0 */
1492 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1493 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record))
1496 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
1498 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1500 if (phba->valid_vlan)
1501 *vlan_id = phba->vlan_id;
1503 *vlan_id = LPFC_FCOE_NULL_VID;
1508 * If there are no FCF connection table entry, driver connect to all
1511 if (list_empty(&phba->fcf_conn_rec_list)) {
1513 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1517 * When there are no FCF connect entries, use driver's default
1518 * addressing mode - FPMA.
1520 if (*addr_mode & LPFC_FCF_FPMA)
1521 *addr_mode = LPFC_FCF_FPMA;
1523 /* If FCF record report a vlan id use that vlan id */
1525 *vlan_id = fcf_vlan_id;
1527 *vlan_id = LPFC_FCOE_NULL_VID;
1531 list_for_each_entry(conn_entry,
1532 &phba->fcf_conn_rec_list, list) {
1533 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1536 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1537 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
1540 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1541 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1544 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1546 * If the vlan bit map does not have the bit set for the
1547 * vlan id to be used, then it is not a match.
1549 if (!(new_fcf_record->vlan_bitmap
1550 [conn_entry->conn_rec.vlan_tag / 8] &
1551 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1556 * If connection record does not support any addressing mode,
1557 * skip the FCF record.
1559 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1560 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1564 * Check if the connection record specifies a required
1567 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1568 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1571 * If SPMA required but FCF not support this continue.
1573 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1574 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1575 new_fcf_record) & LPFC_FCF_SPMA))
1579 * If FPMA required but FCF not support this continue.
1581 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1582 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1583 new_fcf_record) & LPFC_FCF_FPMA))
1588 * This fcf record matches filtering criteria.
1590 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1596 * If user did not specify any addressing mode, or if the
1597 * preferred addressing mode specified by user is not supported
1598 * by FCF, allow fabric to pick the addressing mode.
1600 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1603 * If the user specified a required address mode, assign that
1606 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1607 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1608 *addr_mode = (conn_entry->conn_rec.flags &
1610 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1612 * If the user specified a preferred address mode, use the
1613 * addr mode only if FCF support the addr_mode.
1615 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1616 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1617 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1618 (*addr_mode & LPFC_FCF_SPMA))
1619 *addr_mode = LPFC_FCF_SPMA;
1620 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1621 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1622 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1623 (*addr_mode & LPFC_FCF_FPMA))
1624 *addr_mode = LPFC_FCF_FPMA;
1626 /* If matching connect list has a vlan id, use it */
1627 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1628 *vlan_id = conn_entry->conn_rec.vlan_tag;
1630 * If no vlan id is specified in connect list, use the vlan id
1633 else if (fcf_vlan_id)
1634 *vlan_id = fcf_vlan_id;
1636 *vlan_id = LPFC_FCOE_NULL_VID;
1645 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1646 * @phba: pointer to lpfc hba data structure.
1647 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1649 * This function check if there is any fcoe event pending while driver
1650 * scan FCF entries. If there is any pending event, it will restart the
1651 * FCF saning and return 1 else return 0.
1654 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1657 * If the Link is up and no FCoE events while in the
1658 * FCF discovery, no need to restart FCF discovery.
1660 if ((phba->link_state >= LPFC_LINK_UP) &&
1661 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
1664 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1665 "2768 Pending link or FCF event during current "
1666 "handling of the previous event: link_state:x%x, "
1667 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1668 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
1669 phba->fcoe_eventtag);
1671 spin_lock_irq(&phba->hbalock);
1672 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1673 spin_unlock_irq(&phba->hbalock);
1675 if (phba->link_state >= LPFC_LINK_UP) {
1676 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1677 "2780 Restart FCF table scan due to "
1678 "pending FCF event:evt_tag_at_scan:x%x, "
1679 "evt_tag_current:x%x\n",
1680 phba->fcoe_eventtag_at_fcf_scan,
1681 phba->fcoe_eventtag);
1682 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
1685 * Do not continue FCF discovery and clear FCF_TS_INPROG
1688 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1689 "2833 Stop FCF discovery process due to link "
1690 "state change (x%x)\n", phba->link_state);
1691 spin_lock_irq(&phba->hbalock);
1692 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1693 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
1694 spin_unlock_irq(&phba->hbalock);
1697 /* Unregister the currently registered FCF if required */
1699 spin_lock_irq(&phba->hbalock);
1700 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1701 spin_unlock_irq(&phba->hbalock);
1702 lpfc_sli4_unregister_fcf(phba);
1708 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1709 * @phba: pointer to lpfc hba data structure.
1710 * @fcf_cnt: number of eligible fcf record seen so far.
1712 * This function makes an running random selection decision on FCF record to
1713 * use through a sequence of @fcf_cnt eligible FCF records with equal
1714 * probability. To perform integer manunipulation of random numbers with
1715 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1716 * from random32() are taken as the random random number generated.
1718 * Returns true when outcome is for the newly read FCF record should be
1719 * chosen; otherwise, return false when outcome is for keeping the previously
1720 * chosen FCF record.
1723 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
1727 /* Get 16-bit uniform random number */
1728 rand_num = (0xFFFF & random32());
1730 /* Decision with probability 1/fcf_cnt */
1731 if ((fcf_cnt * rand_num) < 0xFFFF)
1738 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
1739 * @phba: pointer to lpfc hba data structure.
1740 * @mboxq: pointer to mailbox object.
1741 * @next_fcf_index: pointer to holder of next fcf index.
1743 * This routine parses the non-embedded fcf mailbox command by performing the
1744 * necessarily error checking, non-embedded read FCF record mailbox command
1745 * SGE parsing, and endianness swapping.
1747 * Returns the pointer to the new FCF record in the non-embedded mailbox
1748 * command DMA memory if successfully, other NULL.
1750 static struct fcf_record *
1751 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
1752 uint16_t *next_fcf_index)
1755 dma_addr_t phys_addr;
1756 struct lpfc_mbx_sge sge;
1757 struct lpfc_mbx_read_fcf_tbl *read_fcf;
1758 uint32_t shdr_status, shdr_add_status;
1759 union lpfc_sli4_cfg_shdr *shdr;
1760 struct fcf_record *new_fcf_record;
1762 /* Get the first SGE entry from the non-embedded DMA memory. This
1763 * routine only uses a single SGE.
1765 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1766 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
1767 if (unlikely(!mboxq->sge_array)) {
1768 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1769 "2524 Failed to get the non-embedded SGE "
1770 "virtual address\n");
1773 virt_addr = mboxq->sge_array->addr[0];
1775 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
1776 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
1777 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
1778 if (shdr_status || shdr_add_status) {
1779 if (shdr_status == STATUS_FCF_TABLE_EMPTY)
1780 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1781 "2726 READ_FCF_RECORD Indicates empty "
1784 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1785 "2521 READ_FCF_RECORD mailbox failed "
1786 "with status x%x add_status x%x, "
1787 "mbx\n", shdr_status, shdr_add_status);
1791 /* Interpreting the returned information of the FCF record */
1792 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1793 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1794 sizeof(struct lpfc_mbx_read_fcf_tbl));
1795 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
1796 new_fcf_record = (struct fcf_record *)(virt_addr +
1797 sizeof(struct lpfc_mbx_read_fcf_tbl));
1798 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
1799 offsetof(struct fcf_record, vlan_bitmap));
1800 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
1801 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
1803 return new_fcf_record;
1807 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1808 * @phba: pointer to lpfc hba data structure.
1809 * @fcf_record: pointer to the fcf record.
1810 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1811 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1813 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1817 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
1818 struct fcf_record *fcf_record,
1820 uint16_t next_fcf_index)
1822 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1823 "2764 READ_FCF_RECORD:\n"
1824 "\tFCF_Index : x%x\n"
1825 "\tFCF_Avail : x%x\n"
1826 "\tFCF_Valid : x%x\n"
1827 "\tFIP_Priority : x%x\n"
1828 "\tMAC_Provider : x%x\n"
1829 "\tLowest VLANID : x%x\n"
1830 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1831 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1832 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1833 "\tNext_FCF_Index: x%x\n",
1834 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
1835 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
1836 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
1837 fcf_record->fip_priority,
1838 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
1840 bf_get(lpfc_fcf_record_mac_0, fcf_record),
1841 bf_get(lpfc_fcf_record_mac_1, fcf_record),
1842 bf_get(lpfc_fcf_record_mac_2, fcf_record),
1843 bf_get(lpfc_fcf_record_mac_3, fcf_record),
1844 bf_get(lpfc_fcf_record_mac_4, fcf_record),
1845 bf_get(lpfc_fcf_record_mac_5, fcf_record),
1846 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
1847 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
1848 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
1849 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
1850 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
1851 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
1852 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
1853 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
1854 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
1855 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
1856 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
1857 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
1858 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
1859 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
1860 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
1861 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
1866 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1867 * @phba: pointer to lpfc hba data structure.
1868 * @fcf_rec: pointer to an existing FCF record.
1869 * @new_fcf_record: pointer to a new FCF record.
1870 * @new_vlan_id: vlan id from the new FCF record.
1872 * This function performs matching test of a new FCF record against an existing
1873 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1874 * will not be used as part of the FCF record matching criteria.
1876 * Returns true if all the fields matching, otherwise returns false.
1879 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
1880 struct lpfc_fcf_rec *fcf_rec,
1881 struct fcf_record *new_fcf_record,
1882 uint16_t new_vlan_id)
1884 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
1885 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
1887 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
1889 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
1891 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
1893 if (fcf_rec->priority != new_fcf_record->fip_priority)
1899 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1900 * @vport: Pointer to vport object.
1901 * @fcf_index: index to next fcf.
1903 * This function processing the roundrobin fcf failover to next fcf index.
1904 * When this function is invoked, there will be a current fcf registered
1906 * Return: 0 for continue retrying flogi on currently registered fcf;
1907 * 1 for stop flogi on currently registered fcf;
1909 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
1911 struct lpfc_hba *phba = vport->phba;
1914 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
1915 spin_lock_irq(&phba->hbalock);
1916 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
1917 spin_unlock_irq(&phba->hbalock);
1918 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1919 "2872 Devloss tmo with no eligible "
1920 "FCF, unregister in-use FCF (x%x) "
1921 "and rescan FCF table\n",
1922 phba->fcf.current_rec.fcf_indx);
1923 lpfc_unregister_fcf_rescan(phba);
1924 goto stop_flogi_current_fcf;
1926 /* Mark the end to FLOGI roundrobin failover */
1927 phba->hba_flag &= ~FCF_RR_INPROG;
1928 /* Allow action to new fcf asynchronous event */
1929 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
1930 spin_unlock_irq(&phba->hbalock);
1931 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1932 "2865 No FCF available, stop roundrobin FCF "
1933 "failover and change port state:x%x/x%x\n",
1934 phba->pport->port_state, LPFC_VPORT_UNKNOWN);
1935 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
1936 goto stop_flogi_current_fcf;
1938 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
1939 "2794 Try FLOGI roundrobin FCF failover to "
1940 "(x%x)\n", fcf_index);
1941 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
1943 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
1944 "2761 FLOGI roundrobin FCF failover "
1945 "failed (rc:x%x) to read FCF (x%x)\n",
1946 rc, phba->fcf.current_rec.fcf_indx);
1948 goto stop_flogi_current_fcf;
1952 stop_flogi_current_fcf:
1953 lpfc_can_disctmo(vport);
1958 * lpfc_sli4_fcf_pri_list_del
1959 * @phba: pointer to lpfc hba data structure.
1960 * @fcf_index the index of the fcf record to delete
1961 * This routine checks the on list flag of the fcf_index to be deleted.
1962 * If it is one the list then it is removed from the list, and the flag
1963 * is cleared. This routine grab the hbalock before removing the fcf
1964 * record from the list.
1966 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
1969 struct lpfc_fcf_pri *new_fcf_pri;
1971 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1972 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1973 "3058 deleting idx x%x pri x%x flg x%x\n",
1974 fcf_index, new_fcf_pri->fcf_rec.priority,
1975 new_fcf_pri->fcf_rec.flag);
1976 spin_lock_irq(&phba->hbalock);
1977 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
1978 if (phba->fcf.current_rec.priority ==
1979 new_fcf_pri->fcf_rec.priority)
1980 phba->fcf.eligible_fcf_cnt--;
1981 list_del_init(&new_fcf_pri->list);
1982 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
1984 spin_unlock_irq(&phba->hbalock);
1988 * lpfc_sli4_set_fcf_flogi_fail
1989 * @phba: pointer to lpfc hba data structure.
1990 * @fcf_index the index of the fcf record to update
1991 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
1992 * flag so the the round robin slection for the particular priority level
1993 * will try a different fcf record that does not have this bit set.
1994 * If the fcf record is re-read for any reason this flag is cleared brfore
1995 * adding it to the priority list.
1998 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
2000 struct lpfc_fcf_pri *new_fcf_pri;
2001 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2002 spin_lock_irq(&phba->hbalock);
2003 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
2004 spin_unlock_irq(&phba->hbalock);
2008 * lpfc_sli4_fcf_pri_list_add
2009 * @phba: pointer to lpfc hba data structure.
2010 * @fcf_index the index of the fcf record to add
2011 * This routine checks the priority of the fcf_index to be added.
2012 * If it is a lower priority than the current head of the fcf_pri list
2013 * then it is added to the list in the right order.
2014 * If it is the same priority as the current head of the list then it
2015 * is added to the head of the list and its bit in the rr_bmask is set.
2016 * If the fcf_index to be added is of a higher priority than the current
2017 * head of the list then the rr_bmask is cleared, its bit is set in the
2018 * rr_bmask and it is added to the head of the list.
2020 * 0=success 1=failure
2022 int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, uint16_t fcf_index,
2023 struct fcf_record *new_fcf_record)
2025 uint16_t current_fcf_pri;
2026 uint16_t last_index;
2027 struct lpfc_fcf_pri *fcf_pri;
2028 struct lpfc_fcf_pri *next_fcf_pri;
2029 struct lpfc_fcf_pri *new_fcf_pri;
2032 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2033 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2034 "3059 adding idx x%x pri x%x flg x%x\n",
2035 fcf_index, new_fcf_record->fip_priority,
2036 new_fcf_pri->fcf_rec.flag);
2037 spin_lock_irq(&phba->hbalock);
2038 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
2039 list_del_init(&new_fcf_pri->list);
2040 new_fcf_pri->fcf_rec.fcf_index = fcf_index;
2041 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
2042 if (list_empty(&phba->fcf.fcf_pri_list)) {
2043 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2044 ret = lpfc_sli4_fcf_rr_index_set(phba,
2045 new_fcf_pri->fcf_rec.fcf_index);
2049 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
2050 LPFC_SLI4_FCF_TBL_INDX_MAX);
2051 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
2052 ret = 0; /* Empty rr list */
2055 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
2056 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
2057 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2058 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
2059 memset(phba->fcf.fcf_rr_bmask, 0,
2060 sizeof(*phba->fcf.fcf_rr_bmask));
2061 /* fcfs_at_this_priority_level = 1; */
2062 phba->fcf.eligible_fcf_cnt = 1;
2064 /* fcfs_at_this_priority_level++; */
2065 phba->fcf.eligible_fcf_cnt++;
2066 ret = lpfc_sli4_fcf_rr_index_set(phba,
2067 new_fcf_pri->fcf_rec.fcf_index);
2071 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
2072 &phba->fcf.fcf_pri_list, list) {
2073 if (new_fcf_pri->fcf_rec.priority <=
2074 fcf_pri->fcf_rec.priority) {
2075 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
2076 list_add(&new_fcf_pri->list,
2077 &phba->fcf.fcf_pri_list);
2079 list_add(&new_fcf_pri->list,
2080 &((struct lpfc_fcf_pri *)
2081 fcf_pri->list.prev)->list);
2084 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
2085 || new_fcf_pri->fcf_rec.priority <
2086 next_fcf_pri->fcf_rec.priority) {
2087 list_add(&new_fcf_pri->list, &fcf_pri->list);
2091 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
2097 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2098 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
2099 spin_unlock_irq(&phba->hbalock);
2104 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2105 * @phba: pointer to lpfc hba data structure.
2106 * @mboxq: pointer to mailbox object.
2108 * This function iterates through all the fcf records available in
2109 * HBA and chooses the optimal FCF record for discovery. After finding
2110 * the FCF for discovery it registers the FCF record and kicks start
2112 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2113 * use an FCF record which matches fabric name and mac address of the
2114 * currently used FCF record.
2115 * If the driver supports only one FCF, it will try to use the FCF record
2116 * used by BOOT_BIOS.
2119 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2121 struct fcf_record *new_fcf_record;
2122 uint32_t boot_flag, addr_mode;
2123 uint16_t fcf_index, next_fcf_index;
2124 struct lpfc_fcf_rec *fcf_rec = NULL;
2127 bool select_new_fcf;
2130 /* If there is pending FCoE event restart FCF table scan */
2131 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
2132 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2136 /* Parse the FCF record from the non-embedded mailbox command */
2137 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2139 if (!new_fcf_record) {
2140 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2141 "2765 Mailbox command READ_FCF_RECORD "
2142 "failed to retrieve a FCF record.\n");
2143 /* Let next new FCF event trigger fast failover */
2144 spin_lock_irq(&phba->hbalock);
2145 phba->hba_flag &= ~FCF_TS_INPROG;
2146 spin_unlock_irq(&phba->hbalock);
2147 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2151 /* Check the FCF record against the connection list */
2152 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2153 &addr_mode, &vlan_id);
2155 /* Log the FCF record information if turned on */
2156 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2160 * If the fcf record does not match with connect list entries
2161 * read the next entry; otherwise, this is an eligible FCF
2162 * record for roundrobin FCF failover.
2165 lpfc_sli4_fcf_pri_list_del(phba,
2166 bf_get(lpfc_fcf_record_fcf_index,
2168 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2169 "2781 FCF (x%x) failed connection "
2170 "list check: (x%x/x%x)\n",
2171 bf_get(lpfc_fcf_record_fcf_index,
2173 bf_get(lpfc_fcf_record_fcf_avail,
2175 bf_get(lpfc_fcf_record_fcf_valid,
2177 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
2178 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2179 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
2180 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
2181 phba->fcf.current_rec.fcf_indx) {
2182 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2183 "2862 FCF (x%x) matches property "
2184 "of in-use FCF (x%x)\n",
2185 bf_get(lpfc_fcf_record_fcf_index,
2187 phba->fcf.current_rec.fcf_indx);
2191 * In case the current in-use FCF record becomes
2192 * invalid/unavailable during FCF discovery that
2193 * was not triggered by fast FCF failover process,
2194 * treat it as fast FCF failover.
2196 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
2197 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2198 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2199 "2835 Invalid in-use FCF "
2200 "(x%x), enter FCF failover "
2202 phba->fcf.current_rec.fcf_indx);
2203 spin_lock_irq(&phba->hbalock);
2204 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2205 spin_unlock_irq(&phba->hbalock);
2206 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2207 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2208 LPFC_FCOE_FCF_GET_FIRST);
2214 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2215 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
2222 * If this is not the first FCF discovery of the HBA, use last
2223 * FCF record for the discovery. The condition that a rescan
2224 * matches the in-use FCF record: fabric name, switch name, mac
2225 * address, and vlan_id.
2227 spin_lock_irq(&phba->hbalock);
2228 if (phba->fcf.fcf_flag & FCF_IN_USE) {
2229 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2230 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2231 new_fcf_record, vlan_id)) {
2232 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
2233 phba->fcf.current_rec.fcf_indx) {
2234 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2235 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
2236 /* Stop FCF redisc wait timer */
2237 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2239 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2240 /* Fast failover, mark completed */
2241 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2242 spin_unlock_irq(&phba->hbalock);
2243 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2244 "2836 New FCF matches in-use "
2246 phba->fcf.current_rec.fcf_indx);
2249 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2250 "2863 New FCF (x%x) matches "
2251 "property of in-use FCF (x%x)\n",
2252 bf_get(lpfc_fcf_record_fcf_index,
2254 phba->fcf.current_rec.fcf_indx);
2257 * Read next FCF record from HBA searching for the matching
2258 * with in-use record only if not during the fast failover
2259 * period. In case of fast failover period, it shall try to
2260 * determine whether the FCF record just read should be the
2263 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2264 spin_unlock_irq(&phba->hbalock);
2269 * Update on failover FCF record only if it's in FCF fast-failover
2270 * period; otherwise, update on current FCF record.
2272 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2273 fcf_rec = &phba->fcf.failover_rec;
2275 fcf_rec = &phba->fcf.current_rec;
2277 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
2279 * If the driver FCF record does not have boot flag
2280 * set and new hba fcf record has boot flag set, use
2281 * the new hba fcf record.
2283 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
2284 /* Choose this FCF record */
2285 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2286 "2837 Update current FCF record "
2287 "(x%x) with new FCF record (x%x)\n",
2289 bf_get(lpfc_fcf_record_fcf_index,
2291 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2292 addr_mode, vlan_id, BOOT_ENABLE);
2293 spin_unlock_irq(&phba->hbalock);
2297 * If the driver FCF record has boot flag set and the
2298 * new hba FCF record does not have boot flag, read
2299 * the next FCF record.
2301 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
2302 spin_unlock_irq(&phba->hbalock);
2306 * If the new hba FCF record has lower priority value
2307 * than the driver FCF record, use the new record.
2309 if (new_fcf_record->fip_priority < fcf_rec->priority) {
2310 /* Choose the new FCF record with lower priority */
2311 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2312 "2838 Update current FCF record "
2313 "(x%x) with new FCF record (x%x)\n",
2315 bf_get(lpfc_fcf_record_fcf_index,
2317 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2318 addr_mode, vlan_id, 0);
2319 /* Reset running random FCF selection count */
2320 phba->fcf.eligible_fcf_cnt = 1;
2321 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
2322 /* Update running random FCF selection count */
2323 phba->fcf.eligible_fcf_cnt++;
2324 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
2325 phba->fcf.eligible_fcf_cnt);
2326 if (select_new_fcf) {
2327 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2328 "2839 Update current FCF record "
2329 "(x%x) with new FCF record (x%x)\n",
2331 bf_get(lpfc_fcf_record_fcf_index,
2333 /* Choose the new FCF by random selection */
2334 __lpfc_update_fcf_record(phba, fcf_rec,
2336 addr_mode, vlan_id, 0);
2339 spin_unlock_irq(&phba->hbalock);
2343 * This is the first suitable FCF record, choose this record for
2344 * initial best-fit FCF.
2347 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2348 "2840 Update initial FCF candidate "
2350 bf_get(lpfc_fcf_record_fcf_index,
2352 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2353 addr_mode, vlan_id, (boot_flag ?
2355 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2356 /* Setup initial running random FCF selection count */
2357 phba->fcf.eligible_fcf_cnt = 1;
2358 /* Seeding the random number generator for random selection */
2359 seed = (uint32_t)(0xFFFFFFFF & jiffies);
2362 spin_unlock_irq(&phba->hbalock);
2366 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2367 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
2368 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
2370 * Case of FCF fast failover scan
2374 * It has not found any suitable FCF record, cancel
2375 * FCF scan inprogress, and do nothing
2377 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
2378 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2379 "2782 No suitable FCF found: "
2381 phba->fcoe_eventtag_at_fcf_scan,
2382 bf_get(lpfc_fcf_record_fcf_index,
2384 spin_lock_irq(&phba->hbalock);
2385 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2386 phba->hba_flag &= ~FCF_TS_INPROG;
2387 spin_unlock_irq(&phba->hbalock);
2388 /* Unregister in-use FCF and rescan */
2389 lpfc_printf_log(phba, KERN_INFO,
2391 "2864 On devloss tmo "
2392 "unreg in-use FCF and "
2393 "rescan FCF table\n");
2394 lpfc_unregister_fcf_rescan(phba);
2398 * Let next new FCF event trigger fast failover
2400 phba->hba_flag &= ~FCF_TS_INPROG;
2401 spin_unlock_irq(&phba->hbalock);
2405 * It has found a suitable FCF record that is not
2406 * the same as in-use FCF record, unregister the
2407 * in-use FCF record, replace the in-use FCF record
2408 * with the new FCF record, mark FCF fast failover
2409 * completed, and then start register the new FCF
2413 /* Unregister the current in-use FCF record */
2414 lpfc_unregister_fcf(phba);
2416 /* Replace in-use record with the new record */
2417 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2418 "2842 Replace in-use FCF (x%x) "
2419 "with failover FCF (x%x)\n",
2420 phba->fcf.current_rec.fcf_indx,
2421 phba->fcf.failover_rec.fcf_indx);
2422 memcpy(&phba->fcf.current_rec,
2423 &phba->fcf.failover_rec,
2424 sizeof(struct lpfc_fcf_rec));
2426 * Mark the fast FCF failover rediscovery completed
2427 * and the start of the first round of the roundrobin
2430 spin_lock_irq(&phba->hbalock);
2431 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2432 spin_unlock_irq(&phba->hbalock);
2433 /* Register to the new FCF record */
2434 lpfc_register_fcf(phba);
2437 * In case of transaction period to fast FCF failover,
2438 * do nothing when search to the end of the FCF table.
2440 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
2441 (phba->fcf.fcf_flag & FCF_REDISC_PEND))
2444 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2445 phba->fcf.fcf_flag & FCF_IN_USE) {
2447 * In case the current in-use FCF record no
2448 * longer existed during FCF discovery that
2449 * was not triggered by fast FCF failover
2450 * process, treat it as fast FCF failover.
2452 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2453 "2841 In-use FCF record (x%x) "
2454 "not reported, entering fast "
2455 "FCF failover mode scanning.\n",
2456 phba->fcf.current_rec.fcf_indx);
2457 spin_lock_irq(&phba->hbalock);
2458 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2459 spin_unlock_irq(&phba->hbalock);
2460 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2461 LPFC_FCOE_FCF_GET_FIRST);
2464 /* Register to the new FCF record */
2465 lpfc_register_fcf(phba);
2468 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
2472 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2473 lpfc_register_fcf(phba);
2479 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2480 * @phba: pointer to lpfc hba data structure.
2481 * @mboxq: pointer to mailbox object.
2483 * This is the callback function for FLOGI failure roundrobin FCF failover
2484 * read FCF record mailbox command from the eligible FCF record bmask for
2485 * performing the failover. If the FCF read back is not valid/available, it
2486 * fails through to retrying FLOGI to the currently registered FCF again.
2487 * Otherwise, if the FCF read back is valid and available, it will set the
2488 * newly read FCF record to the failover FCF record, unregister currently
2489 * registered FCF record, copy the failover FCF record to the current
2490 * FCF record, and then register the current FCF record before proceeding
2491 * to trying FLOGI on the new failover FCF.
2494 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2496 struct fcf_record *new_fcf_record;
2497 uint32_t boot_flag, addr_mode;
2498 uint16_t next_fcf_index, fcf_index;
2499 uint16_t current_fcf_index;
2503 /* If link state is not up, stop the roundrobin failover process */
2504 if (phba->link_state < LPFC_LINK_UP) {
2505 spin_lock_irq(&phba->hbalock);
2506 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
2507 phba->hba_flag &= ~FCF_RR_INPROG;
2508 spin_unlock_irq(&phba->hbalock);
2512 /* Parse the FCF record from the non-embedded mailbox command */
2513 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2515 if (!new_fcf_record) {
2516 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2517 "2766 Mailbox command READ_FCF_RECORD "
2518 "failed to retrieve a FCF record.\n");
2522 /* Get the needed parameters from FCF record */
2523 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2524 &addr_mode, &vlan_id);
2526 /* Log the FCF record information if turned on */
2527 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2530 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2532 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2533 "2848 Remove ineligible FCF (x%x) from "
2534 "from roundrobin bmask\n", fcf_index);
2535 /* Clear roundrobin bmask bit for ineligible FCF */
2536 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
2537 /* Perform next round of roundrobin FCF failover */
2538 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
2539 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
2545 if (fcf_index == phba->fcf.current_rec.fcf_indx) {
2546 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2547 "2760 Perform FLOGI roundrobin FCF failover: "
2548 "FCF (x%x) back to FCF (x%x)\n",
2549 phba->fcf.current_rec.fcf_indx, fcf_index);
2550 /* Wait 500 ms before retrying FLOGI to current FCF */
2552 lpfc_issue_init_vfi(phba->pport);
2556 /* Upload new FCF record to the failover FCF record */
2557 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2558 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2559 phba->fcf.failover_rec.fcf_indx, fcf_index);
2560 spin_lock_irq(&phba->hbalock);
2561 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2562 new_fcf_record, addr_mode, vlan_id,
2563 (boot_flag ? BOOT_ENABLE : 0));
2564 spin_unlock_irq(&phba->hbalock);
2566 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2568 /* Unregister the current in-use FCF record */
2569 lpfc_unregister_fcf(phba);
2571 /* Replace in-use record with the new record */
2572 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2573 sizeof(struct lpfc_fcf_rec));
2575 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2576 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2577 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
2580 lpfc_register_fcf(phba);
2582 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2586 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2587 * @phba: pointer to lpfc hba data structure.
2588 * @mboxq: pointer to mailbox object.
2590 * This is the callback function of read FCF record mailbox command for
2591 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
2592 * failover when a new FCF event happened. If the FCF read back is
2593 * valid/available and it passes the connection list check, it updates
2594 * the bmask for the eligible FCF record for roundrobin failover.
2597 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2599 struct fcf_record *new_fcf_record;
2600 uint32_t boot_flag, addr_mode;
2601 uint16_t fcf_index, next_fcf_index;
2605 /* If link state is not up, no need to proceed */
2606 if (phba->link_state < LPFC_LINK_UP)
2609 /* If FCF discovery period is over, no need to proceed */
2610 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
2613 /* Parse the FCF record from the non-embedded mailbox command */
2614 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2616 if (!new_fcf_record) {
2617 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2618 "2767 Mailbox command READ_FCF_RECORD "
2619 "failed to retrieve a FCF record.\n");
2623 /* Check the connection list for eligibility */
2624 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2625 &addr_mode, &vlan_id);
2627 /* Log the FCF record information if turned on */
2628 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2634 /* Update the eligible FCF record index bmask */
2635 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2637 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
2640 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2644 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2645 * @phba: pointer to lpfc hba data structure.
2646 * @mboxq: pointer to mailbox data structure.
2648 * This function handles completion of init vfi mailbox command.
2651 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2653 struct lpfc_vport *vport = mboxq->vport;
2656 * VFI not supported on interface type 0, just do the flogi
2657 * Also continue if the VFI is in use - just use the same one.
2659 if (mboxq->u.mb.mbxStatus &&
2660 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2661 LPFC_SLI_INTF_IF_TYPE_0) &&
2662 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2663 lpfc_printf_vlog(vport, KERN_ERR,
2665 "2891 Init VFI mailbox failed 0x%x\n",
2666 mboxq->u.mb.mbxStatus);
2667 mempool_free(mboxq, phba->mbox_mem_pool);
2668 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2672 lpfc_initial_flogi(vport);
2673 mempool_free(mboxq, phba->mbox_mem_pool);
2678 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2679 * @vport: pointer to lpfc_vport data structure.
2681 * This function issue a init_vfi mailbox command to initialize the VFI and
2682 * VPI for the physical port.
2685 lpfc_issue_init_vfi(struct lpfc_vport *vport)
2687 LPFC_MBOXQ_t *mboxq;
2689 struct lpfc_hba *phba = vport->phba;
2691 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2693 lpfc_printf_vlog(vport, KERN_ERR,
2694 LOG_MBOX, "2892 Failed to allocate "
2695 "init_vfi mailbox\n");
2698 lpfc_init_vfi(mboxq, vport);
2699 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
2700 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
2701 if (rc == MBX_NOT_FINISHED) {
2702 lpfc_printf_vlog(vport, KERN_ERR,
2703 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n");
2704 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2709 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2710 * @phba: pointer to lpfc hba data structure.
2711 * @mboxq: pointer to mailbox data structure.
2713 * This function handles completion of init vpi mailbox command.
2716 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2718 struct lpfc_vport *vport = mboxq->vport;
2719 struct lpfc_nodelist *ndlp;
2720 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2722 if (mboxq->u.mb.mbxStatus) {
2723 lpfc_printf_vlog(vport, KERN_ERR,
2725 "2609 Init VPI mailbox failed 0x%x\n",
2726 mboxq->u.mb.mbxStatus);
2727 mempool_free(mboxq, phba->mbox_mem_pool);
2728 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2731 spin_lock_irq(shost->host_lock);
2732 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
2733 spin_unlock_irq(shost->host_lock);
2735 /* If this port is physical port or FDISC is done, do reg_vpi */
2736 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
2737 ndlp = lpfc_findnode_did(vport, Fabric_DID);
2739 lpfc_printf_vlog(vport, KERN_ERR,
2741 "2731 Cannot find fabric "
2742 "controller node\n");
2744 lpfc_register_new_vport(phba, vport, ndlp);
2745 mempool_free(mboxq, phba->mbox_mem_pool);
2749 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2750 lpfc_initial_fdisc(vport);
2752 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
2753 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2754 "2606 No NPIV Fabric support\n");
2756 mempool_free(mboxq, phba->mbox_mem_pool);
2761 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2762 * @vport: pointer to lpfc_vport data structure.
2764 * This function issue a init_vpi mailbox command to initialize
2765 * VPI for the vport.
2768 lpfc_issue_init_vpi(struct lpfc_vport *vport)
2770 LPFC_MBOXQ_t *mboxq;
2773 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
2775 lpfc_printf_vlog(vport, KERN_ERR,
2776 LOG_MBOX, "2607 Failed to allocate "
2777 "init_vpi mailbox\n");
2780 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
2781 mboxq->vport = vport;
2782 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
2783 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
2784 if (rc == MBX_NOT_FINISHED) {
2785 lpfc_printf_vlog(vport, KERN_ERR,
2786 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
2787 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2792 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2793 * @phba: pointer to lpfc hba data structure.
2795 * This function loops through the list of vports on the @phba and issues an
2796 * FDISC if possible.
2799 lpfc_start_fdiscs(struct lpfc_hba *phba)
2801 struct lpfc_vport **vports;
2804 vports = lpfc_create_vport_work_array(phba);
2805 if (vports != NULL) {
2806 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2807 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
2809 /* There are no vpi for this vport */
2810 if (vports[i]->vpi > phba->max_vpi) {
2811 lpfc_vport_set_state(vports[i],
2815 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2816 lpfc_vport_set_state(vports[i],
2820 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
2821 lpfc_issue_init_vpi(vports[i]);
2824 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2825 lpfc_initial_fdisc(vports[i]);
2827 lpfc_vport_set_state(vports[i],
2828 FC_VPORT_NO_FABRIC_SUPP);
2829 lpfc_printf_vlog(vports[i], KERN_ERR,
2832 "Fabric support\n");
2836 lpfc_destroy_vport_work_array(phba, vports);
2840 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2842 struct lpfc_dmabuf *dmabuf = mboxq->context1;
2843 struct lpfc_vport *vport = mboxq->vport;
2844 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2847 * VFI not supported for interface type 0, so ignore any mailbox
2848 * error (except VFI in use) and continue with the discovery.
2850 if (mboxq->u.mb.mbxStatus &&
2851 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2852 LPFC_SLI_INTF_IF_TYPE_0) &&
2853 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2854 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2855 "2018 REG_VFI mbxStatus error x%x "
2857 mboxq->u.mb.mbxStatus, vport->port_state);
2858 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2859 /* FLOGI failed, use loop map to make discovery list */
2860 lpfc_disc_list_loopmap(vport);
2861 /* Start discovery */
2862 lpfc_disc_start(vport);
2865 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2868 /* The VPI is implicitly registered when the VFI is registered */
2869 spin_lock_irq(shost->host_lock);
2870 vport->vpi_state |= LPFC_VPI_REGISTERED;
2871 vport->fc_flag |= FC_VFI_REGISTERED;
2872 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2873 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
2874 spin_unlock_irq(shost->host_lock);
2876 /* In case SLI4 FC loopback test, we are ready */
2877 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2878 (phba->link_flag & LS_LOOPBACK_MODE)) {
2879 phba->link_state = LPFC_HBA_READY;
2883 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
2884 /* For private loop just start discovery and we are done. */
2885 if ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
2886 !(vport->fc_flag & FC_PUBLIC_LOOP)) {
2887 /* Use loop map to make discovery list */
2888 lpfc_disc_list_loopmap(vport);
2889 /* Start discovery */
2890 lpfc_disc_start(vport);
2892 lpfc_start_fdiscs(phba);
2893 lpfc_do_scr_ns_plogi(phba, vport);
2898 mempool_free(mboxq, phba->mbox_mem_pool);
2899 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
2905 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2907 MAILBOX_t *mb = &pmb->u.mb;
2908 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
2909 struct lpfc_vport *vport = pmb->vport;
2912 /* Check for error */
2913 if (mb->mbxStatus) {
2914 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
2915 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2916 "0319 READ_SPARAM mbxStatus error x%x "
2918 mb->mbxStatus, vport->port_state);
2919 lpfc_linkdown(phba);
2923 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
2924 sizeof (struct serv_parm));
2925 lpfc_update_vport_wwn(vport);
2926 if (vport->port_type == LPFC_PHYSICAL_PORT) {
2927 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
2928 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
2931 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2933 mempool_free(pmb, phba->mbox_mem_pool);
2937 pmb->context1 = NULL;
2938 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2940 lpfc_issue_clear_la(phba, vport);
2941 mempool_free(pmb, phba->mbox_mem_pool);
2946 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
2948 struct lpfc_vport *vport = phba->pport;
2949 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
2950 struct Scsi_Host *shost;
2952 struct lpfc_dmabuf *mp;
2954 struct fcf_record *fcf_record;
2956 spin_lock_irq(&phba->hbalock);
2957 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
2958 case LPFC_LINK_SPEED_1GHZ:
2959 case LPFC_LINK_SPEED_2GHZ:
2960 case LPFC_LINK_SPEED_4GHZ:
2961 case LPFC_LINK_SPEED_8GHZ:
2962 case LPFC_LINK_SPEED_10GHZ:
2963 case LPFC_LINK_SPEED_16GHZ:
2964 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
2967 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
2971 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
2972 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
2974 shost = lpfc_shost_from_vport(vport);
2975 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2976 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
2978 /* if npiv is enabled and this adapter supports npiv log
2979 * a message that npiv is not supported in this topology
2981 if (phba->cfg_enable_npiv && phba->max_vpi)
2982 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2983 "1309 Link Up Event npiv not supported in loop "
2985 /* Get Loop Map information */
2986 if (bf_get(lpfc_mbx_read_top_il, la)) {
2987 spin_lock(shost->host_lock);
2988 vport->fc_flag |= FC_LBIT;
2989 spin_unlock(shost->host_lock);
2992 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
2993 i = la->lilpBde64.tus.f.bdeSize;
2996 phba->alpa_map[0] = 0;
2998 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
3009 numalpa = phba->alpa_map[0];
3011 while (j < numalpa) {
3012 memset(un.pamap, 0, 16);
3013 for (k = 1; j < numalpa; k++) {
3015 phba->alpa_map[j + 1];
3020 /* Link Up Event ALPA map */
3021 lpfc_printf_log(phba,
3024 "1304 Link Up Event "
3025 "ALPA map Data: x%x "
3027 un.pa.wd1, un.pa.wd2,
3028 un.pa.wd3, un.pa.wd4);
3033 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
3034 if (phba->max_vpi && phba->cfg_enable_npiv &&
3035 (phba->sli_rev >= LPFC_SLI_REV3))
3036 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3038 vport->fc_myDID = phba->fc_pref_DID;
3039 spin_lock(shost->host_lock);
3040 vport->fc_flag |= FC_LBIT;
3041 spin_unlock(shost->host_lock);
3043 spin_unlock_irq(&phba->hbalock);
3046 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3050 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
3052 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3055 sparam_mbox->vport = vport;
3056 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
3057 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
3058 if (rc == MBX_NOT_FINISHED) {
3059 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
3060 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3062 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3066 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3067 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3070 vport->port_state = LPFC_LOCAL_CFG_LINK;
3071 lpfc_config_link(phba, cfglink_mbox);
3072 cfglink_mbox->vport = vport;
3073 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
3074 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
3075 if (rc == MBX_NOT_FINISHED) {
3076 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
3080 vport->port_state = LPFC_VPORT_UNKNOWN;
3082 * Add the driver's default FCF record at FCF index 0 now. This
3083 * is phase 1 implementation that support FCF index 0 and driver
3086 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
3087 fcf_record = kzalloc(sizeof(struct fcf_record),
3089 if (unlikely(!fcf_record)) {
3090 lpfc_printf_log(phba, KERN_ERR,
3092 "2554 Could not allocate memory for "
3098 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
3099 LPFC_FCOE_FCF_DEF_INDEX);
3100 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
3102 lpfc_printf_log(phba, KERN_ERR,
3104 "2013 Could not manually add FCF "
3105 "record 0, status %d\n", rc);
3113 * The driver is expected to do FIP/FCF. Call the port
3114 * and get the FCF Table.
3116 spin_lock_irq(&phba->hbalock);
3117 if (phba->hba_flag & FCF_TS_INPROG) {
3118 spin_unlock_irq(&phba->hbalock);
3121 /* This is the initial FCF discovery scan */
3122 phba->fcf.fcf_flag |= FCF_INIT_DISC;
3123 spin_unlock_irq(&phba->hbalock);
3124 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3125 "2778 Start FCF table scan at linkup\n");
3126 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3127 LPFC_FCOE_FCF_GET_FIRST);
3129 spin_lock_irq(&phba->hbalock);
3130 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
3131 spin_unlock_irq(&phba->hbalock);
3134 /* Reset FCF roundrobin bmask for new discovery */
3135 lpfc_sli4_clear_fcf_rr_bmask(phba);
3140 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3141 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3142 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
3143 vport->port_state, sparam_mbox, cfglink_mbox);
3144 lpfc_issue_clear_la(phba, vport);
3149 lpfc_enable_la(struct lpfc_hba *phba)
3152 struct lpfc_sli *psli = &phba->sli;
3153 spin_lock_irq(&phba->hbalock);
3154 psli->sli_flag |= LPFC_PROCESS_LA;
3155 if (phba->sli_rev <= LPFC_SLI_REV3) {
3156 control = readl(phba->HCregaddr);
3157 control |= HC_LAINT_ENA;
3158 writel(control, phba->HCregaddr);
3159 readl(phba->HCregaddr); /* flush */
3161 spin_unlock_irq(&phba->hbalock);
3165 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
3167 lpfc_linkdown(phba);
3168 lpfc_enable_la(phba);
3169 lpfc_unregister_unused_fcf(phba);
3170 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3175 * This routine handles processing a READ_TOPOLOGY mailbox
3176 * command upon completion. It is setup in the LPFC_MBOXQ
3177 * as the completion routine when the command is
3178 * handed off to the SLI layer.
3181 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3183 struct lpfc_vport *vport = pmb->vport;
3184 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3185 struct lpfc_mbx_read_top *la;
3186 MAILBOX_t *mb = &pmb->u.mb;
3187 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3189 /* Unblock ELS traffic */
3190 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
3191 /* Check for error */
3192 if (mb->mbxStatus) {
3193 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3194 "1307 READ_LA mbox error x%x state x%x\n",
3195 mb->mbxStatus, vport->port_state);
3196 lpfc_mbx_issue_link_down(phba);
3197 phba->link_state = LPFC_HBA_ERROR;
3198 goto lpfc_mbx_cmpl_read_topology_free_mbuf;
3201 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3203 memcpy(&phba->alpa_map[0], mp->virt, 128);
3205 spin_lock_irq(shost->host_lock);
3206 if (bf_get(lpfc_mbx_read_top_pb, la))
3207 vport->fc_flag |= FC_BYPASSED_MODE;
3209 vport->fc_flag &= ~FC_BYPASSED_MODE;
3210 spin_unlock_irq(shost->host_lock);
3212 if ((phba->fc_eventTag < la->eventTag) ||
3213 (phba->fc_eventTag == la->eventTag)) {
3214 phba->fc_stat.LinkMultiEvent++;
3215 if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP)
3216 if (phba->fc_eventTag != 0)
3217 lpfc_linkdown(phba);
3220 phba->fc_eventTag = la->eventTag;
3221 spin_lock_irq(&phba->hbalock);
3222 if (bf_get(lpfc_mbx_read_top_mm, la))
3223 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
3225 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
3226 spin_unlock_irq(&phba->hbalock);
3228 phba->link_events++;
3229 if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) &&
3230 (!bf_get(lpfc_mbx_read_top_mm, la))) {
3231 phba->fc_stat.LinkUp++;
3232 if (phba->link_flag & LS_LOOPBACK_MODE) {
3233 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3234 "1306 Link Up Event in loop back mode "
3235 "x%x received Data: x%x x%x x%x x%x\n",
3236 la->eventTag, phba->fc_eventTag,
3237 bf_get(lpfc_mbx_read_top_alpa_granted,
3239 bf_get(lpfc_mbx_read_top_link_spd, la),
3242 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3243 "1303 Link Up Event x%x received "
3244 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3245 la->eventTag, phba->fc_eventTag,
3246 bf_get(lpfc_mbx_read_top_alpa_granted,
3248 bf_get(lpfc_mbx_read_top_link_spd, la),
3250 bf_get(lpfc_mbx_read_top_mm, la),
3251 bf_get(lpfc_mbx_read_top_fa, la),
3252 phba->wait_4_mlo_maint_flg);
3254 lpfc_mbx_process_link_up(phba, la);
3255 } else if (bf_get(lpfc_mbx_read_top_att_type, la) ==
3256 LPFC_ATT_LINK_DOWN) {
3257 phba->fc_stat.LinkDown++;
3258 if (phba->link_flag & LS_LOOPBACK_MODE)
3259 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3260 "1308 Link Down Event in loop back mode "
3262 "Data: x%x x%x x%x\n",
3263 la->eventTag, phba->fc_eventTag,
3264 phba->pport->port_state, vport->fc_flag);
3266 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3267 "1305 Link Down Event x%x received "
3268 "Data: x%x x%x x%x x%x x%x\n",
3269 la->eventTag, phba->fc_eventTag,
3270 phba->pport->port_state, vport->fc_flag,
3271 bf_get(lpfc_mbx_read_top_mm, la),
3272 bf_get(lpfc_mbx_read_top_fa, la));
3273 lpfc_mbx_issue_link_down(phba);
3275 if ((bf_get(lpfc_mbx_read_top_mm, la)) &&
3276 (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP)) {
3277 if (phba->link_state != LPFC_LINK_DOWN) {
3278 phba->fc_stat.LinkDown++;
3279 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3280 "1312 Link Down Event x%x received "
3281 "Data: x%x x%x x%x\n",
3282 la->eventTag, phba->fc_eventTag,
3283 phba->pport->port_state, vport->fc_flag);
3284 lpfc_mbx_issue_link_down(phba);
3286 lpfc_enable_la(phba);
3288 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3289 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3290 "Data: x%x x%x x%x\n",
3291 la->eventTag, phba->fc_eventTag,
3292 phba->pport->port_state, vport->fc_flag);
3294 * The cmnd that triggered this will be waiting for this
3297 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3298 if (phba->wait_4_mlo_maint_flg) {
3299 phba->wait_4_mlo_maint_flg = 0;
3300 wake_up_interruptible(&phba->wait_4_mlo_m_q);
3304 if (bf_get(lpfc_mbx_read_top_fa, la)) {
3305 if (bf_get(lpfc_mbx_read_top_mm, la))
3306 lpfc_issue_clear_la(phba, vport);
3307 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3309 bf_get(lpfc_mbx_read_top_fa, la));
3312 lpfc_mbx_cmpl_read_topology_free_mbuf:
3313 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3315 mempool_free(pmb, phba->mbox_mem_pool);
3320 * This routine handles processing a REG_LOGIN mailbox
3321 * command upon completion. It is setup in the LPFC_MBOXQ
3322 * as the completion routine when the command is
3323 * handed off to the SLI layer.
3326 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3328 struct lpfc_vport *vport = pmb->vport;
3329 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3330 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3331 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3333 pmb->context1 = NULL;
3334 pmb->context2 = NULL;
3336 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
3337 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3339 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
3340 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
3341 /* We rcvd a rscn after issuing this
3342 * mbox reg login, we may have cycled
3343 * back through the state and be
3344 * back at reg login state so this
3345 * mbox needs to be ignored becase
3346 * there is another reg login in
3349 spin_lock_irq(shost->host_lock);
3350 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
3351 spin_unlock_irq(shost->host_lock);
3353 /* Good status, call state machine */
3354 lpfc_disc_state_machine(vport, ndlp, pmb,
3355 NLP_EVT_CMPL_REG_LOGIN);
3357 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3359 mempool_free(pmb, phba->mbox_mem_pool);
3360 /* decrement the node reference count held for this callback
3369 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3371 MAILBOX_t *mb = &pmb->u.mb;
3372 struct lpfc_vport *vport = pmb->vport;
3373 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3375 switch (mb->mbxStatus) {
3378 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3379 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3382 /* If VPI is busy, reset the HBA */
3384 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3385 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3386 vport->vpi, mb->mbxStatus);
3387 if (!(phba->pport->load_flag & FC_UNLOADING))
3388 lpfc_workq_post_event(phba, NULL, NULL,
3389 LPFC_EVT_RESET_HBA);
3391 spin_lock_irq(shost->host_lock);
3392 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
3393 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3394 spin_unlock_irq(shost->host_lock);
3395 vport->unreg_vpi_cmpl = VPORT_OK;
3396 mempool_free(pmb, phba->mbox_mem_pool);
3397 lpfc_cleanup_vports_rrqs(vport, NULL);
3399 * This shost reference might have been taken at the beginning of
3400 * lpfc_vport_delete()
3402 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
3403 scsi_host_put(shost);
3407 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
3409 struct lpfc_hba *phba = vport->phba;
3413 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3417 lpfc_unreg_vpi(phba, vport->vpi, mbox);
3418 mbox->vport = vport;
3419 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
3420 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3421 if (rc == MBX_NOT_FINISHED) {
3422 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3423 "1800 Could not issue unreg_vpi\n");
3424 mempool_free(mbox, phba->mbox_mem_pool);
3425 vport->unreg_vpi_cmpl = VPORT_ERROR;
3432 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3434 struct lpfc_vport *vport = pmb->vport;
3435 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3436 MAILBOX_t *mb = &pmb->u.mb;
3438 switch (mb->mbxStatus) {
3442 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3443 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3445 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3446 spin_lock_irq(shost->host_lock);
3447 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
3448 spin_unlock_irq(shost->host_lock);
3449 vport->fc_myDID = 0;
3453 spin_lock_irq(shost->host_lock);
3454 vport->vpi_state |= LPFC_VPI_REGISTERED;
3455 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
3456 spin_unlock_irq(shost->host_lock);
3457 vport->num_disc_nodes = 0;
3458 /* go thru NPR list and issue ELS PLOGIs */
3459 if (vport->fc_npr_cnt)
3460 lpfc_els_disc_plogi(vport);
3462 if (!vport->num_disc_nodes) {
3463 spin_lock_irq(shost->host_lock);
3464 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3465 spin_unlock_irq(shost->host_lock);
3466 lpfc_can_disctmo(vport);
3468 vport->port_state = LPFC_VPORT_READY;
3471 mempool_free(pmb, phba->mbox_mem_pool);
3476 * lpfc_create_static_vport - Read HBA config region to create static vports.
3477 * @phba: pointer to lpfc hba data structure.
3479 * This routine issue a DUMP mailbox command for config region 22 to get
3480 * the list of static vports to be created. The function create vports
3481 * based on the information returned from the HBA.
3484 lpfc_create_static_vport(struct lpfc_hba *phba)
3486 LPFC_MBOXQ_t *pmb = NULL;
3488 struct static_vport_info *vport_info;
3490 struct fc_vport_identifiers vport_id;
3491 struct fc_vport *new_fc_vport;
3492 struct Scsi_Host *shost;
3493 struct lpfc_vport *vport;
3494 uint16_t offset = 0;
3495 uint8_t *vport_buff;
3496 struct lpfc_dmabuf *mp;
3497 uint32_t byte_count = 0;
3499 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3502 "0542 lpfc_create_static_vport failed to"
3503 " allocate mailbox memory\n");
3509 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
3511 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3512 "0543 lpfc_create_static_vport failed to"
3513 " allocate vport_info\n");
3514 mempool_free(pmb, phba->mbox_mem_pool);
3518 vport_buff = (uint8_t *) vport_info;
3520 if (lpfc_dump_static_vport(phba, pmb, offset))
3523 pmb->vport = phba->pport;
3524 rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO);
3526 if ((rc != MBX_SUCCESS) || mb->mbxStatus) {
3527 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3528 "0544 lpfc_create_static_vport failed to"
3529 " issue dump mailbox command ret 0x%x "
3535 if (phba->sli_rev == LPFC_SLI_REV4) {
3536 byte_count = pmb->u.mqe.un.mb_words[5];
3537 mp = (struct lpfc_dmabuf *) pmb->context2;
3538 if (byte_count > sizeof(struct static_vport_info) -
3540 byte_count = sizeof(struct static_vport_info)
3542 memcpy(vport_buff + offset, mp->virt, byte_count);
3543 offset += byte_count;
3545 if (mb->un.varDmp.word_cnt >
3546 sizeof(struct static_vport_info) - offset)
3547 mb->un.varDmp.word_cnt =
3548 sizeof(struct static_vport_info)
3550 byte_count = mb->un.varDmp.word_cnt;
3551 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
3552 vport_buff + offset,
3555 offset += byte_count;
3558 } while (byte_count &&
3559 offset < sizeof(struct static_vport_info));
3562 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
3563 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
3564 != VPORT_INFO_REV)) {
3565 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3566 "0545 lpfc_create_static_vport bad"
3567 " information header 0x%x 0x%x\n",
3568 le32_to_cpu(vport_info->signature),
3569 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
3574 shost = lpfc_shost_from_vport(phba->pport);
3576 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
3577 memset(&vport_id, 0, sizeof(vport_id));
3578 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
3579 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
3580 if (!vport_id.port_name || !vport_id.node_name)
3583 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
3584 vport_id.vport_type = FC_PORTTYPE_NPIV;
3585 vport_id.disable = false;
3586 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
3588 if (!new_fc_vport) {
3589 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3590 "0546 lpfc_create_static_vport failed to"
3595 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
3596 vport->vport_flag |= STATIC_VPORT;
3601 if (rc != MBX_TIMEOUT) {
3602 if (pmb->context2) {
3603 mp = (struct lpfc_dmabuf *) pmb->context2;
3604 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3607 mempool_free(pmb, phba->mbox_mem_pool);
3614 * This routine handles processing a Fabric REG_LOGIN mailbox
3615 * command upon completion. It is setup in the LPFC_MBOXQ
3616 * as the completion routine when the command is
3617 * handed off to the SLI layer.
3620 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3622 struct lpfc_vport *vport = pmb->vport;
3623 MAILBOX_t *mb = &pmb->u.mb;
3624 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3625 struct lpfc_nodelist *ndlp;
3626 struct Scsi_Host *shost;
3628 ndlp = (struct lpfc_nodelist *) pmb->context2;
3629 pmb->context1 = NULL;
3630 pmb->context2 = NULL;
3632 if (mb->mbxStatus) {
3633 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3634 "0258 Register Fabric login error: 0x%x\n",
3636 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3638 mempool_free(pmb, phba->mbox_mem_pool);
3640 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3641 /* FLOGI failed, use loop map to make discovery list */
3642 lpfc_disc_list_loopmap(vport);
3644 /* Start discovery */
3645 lpfc_disc_start(vport);
3646 /* Decrement the reference count to ndlp after the
3647 * reference to the ndlp are done.
3653 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3654 /* Decrement the reference count to ndlp after the reference
3655 * to the ndlp are done.
3661 if (phba->sli_rev < LPFC_SLI_REV4)
3662 ndlp->nlp_rpi = mb->un.varWords[0];
3663 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3664 ndlp->nlp_type |= NLP_FABRIC;
3665 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3667 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3668 /* when physical port receive logo donot start
3669 * vport discovery */
3670 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
3671 lpfc_start_fdiscs(phba);
3673 shost = lpfc_shost_from_vport(vport);
3674 spin_lock_irq(shost->host_lock);
3675 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
3676 spin_unlock_irq(shost->host_lock);
3678 lpfc_do_scr_ns_plogi(phba, vport);
3681 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3683 mempool_free(pmb, phba->mbox_mem_pool);
3685 /* Drop the reference count from the mbox at the end after
3686 * all the current reference to the ndlp have been done.
3693 * This routine handles processing a NameServer REG_LOGIN mailbox
3694 * command upon completion. It is setup in the LPFC_MBOXQ
3695 * as the completion routine when the command is
3696 * handed off to the SLI layer.
3699 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3701 MAILBOX_t *mb = &pmb->u.mb;
3702 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3703 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3704 struct lpfc_vport *vport = pmb->vport;
3706 pmb->context1 = NULL;
3707 pmb->context2 = NULL;
3709 if (mb->mbxStatus) {
3711 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3712 "0260 Register NameServer error: 0x%x\n",
3714 /* decrement the node reference count held for this
3715 * callback function.
3718 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3720 mempool_free(pmb, phba->mbox_mem_pool);
3722 /* If no other thread is using the ndlp, free it */
3723 lpfc_nlp_not_used(ndlp);
3725 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3727 * RegLogin failed, use loop map to make discovery
3730 lpfc_disc_list_loopmap(vport);
3732 /* Start discovery */
3733 lpfc_disc_start(vport);
3736 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3740 if (phba->sli_rev < LPFC_SLI_REV4)
3741 ndlp->nlp_rpi = mb->un.varWords[0];
3742 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3743 ndlp->nlp_type |= NLP_FABRIC;
3744 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3746 if (vport->port_state < LPFC_VPORT_READY) {
3747 /* Link up discovery requires Fabric registration. */
3748 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
3749 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
3750 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
3751 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
3752 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
3754 /* Issue SCR just before NameServer GID_FT Query */
3755 lpfc_issue_els_scr(vport, SCR_DID, 0);
3758 vport->fc_ns_retry = 0;
3759 /* Good status, issue CT Request to NameServer */
3760 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
3761 /* Cannot issue NameServer Query, so finish up discovery */
3765 /* decrement the node reference count held for this
3766 * callback function.
3769 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3771 mempool_free(pmb, phba->mbox_mem_pool);
3777 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3779 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3780 struct fc_rport *rport;
3781 struct lpfc_rport_data *rdata;
3782 struct fc_rport_identifiers rport_ids;
3783 struct lpfc_hba *phba = vport->phba;
3785 /* Remote port has reappeared. Re-register w/ FC transport */
3786 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
3787 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
3788 rport_ids.port_id = ndlp->nlp_DID;
3789 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
3792 * We leave our node pointer in rport->dd_data when we unregister a
3793 * FCP target port. But fc_remote_port_add zeros the space to which
3794 * rport->dd_data points. So, if we're reusing a previously
3795 * registered port, drop the reference that we took the last time we
3796 * registered the port.
3798 if (ndlp->rport && ndlp->rport->dd_data &&
3799 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
3802 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
3803 "rport add: did:x%x flg:x%x type x%x",
3804 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3806 /* Don't add the remote port if unloading. */
3807 if (vport->load_flag & FC_UNLOADING)
3810 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
3811 if (!rport || !get_device(&rport->dev)) {
3812 dev_printk(KERN_WARNING, &phba->pcidev->dev,
3813 "Warning: fc_remote_port_add failed\n");
3817 /* initialize static port data */
3818 rport->maxframe_size = ndlp->nlp_maxframe;
3819 rport->supported_classes = ndlp->nlp_class_sup;
3820 rdata = rport->dd_data;
3821 rdata->pnode = lpfc_nlp_get(ndlp);
3823 if (ndlp->nlp_type & NLP_FCP_TARGET)
3824 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
3825 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
3826 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
3828 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
3829 fc_remote_port_rolechg(rport, rport_ids.roles);
3831 if ((rport->scsi_target_id != -1) &&
3832 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
3833 ndlp->nlp_sid = rport->scsi_target_id;
3839 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
3841 struct fc_rport *rport = ndlp->rport;
3843 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
3844 "rport delete: did:x%x flg:x%x type x%x",
3845 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3847 fc_remote_port_delete(rport);
3853 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
3855 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3857 spin_lock_irq(shost->host_lock);
3859 case NLP_STE_UNUSED_NODE:
3860 vport->fc_unused_cnt += count;
3862 case NLP_STE_PLOGI_ISSUE:
3863 vport->fc_plogi_cnt += count;
3865 case NLP_STE_ADISC_ISSUE:
3866 vport->fc_adisc_cnt += count;
3868 case NLP_STE_REG_LOGIN_ISSUE:
3869 vport->fc_reglogin_cnt += count;
3871 case NLP_STE_PRLI_ISSUE:
3872 vport->fc_prli_cnt += count;
3874 case NLP_STE_UNMAPPED_NODE:
3875 vport->fc_unmap_cnt += count;
3877 case NLP_STE_MAPPED_NODE:
3878 vport->fc_map_cnt += count;
3880 case NLP_STE_NPR_NODE:
3881 vport->fc_npr_cnt += count;
3884 spin_unlock_irq(shost->host_lock);
3888 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3889 int old_state, int new_state)
3891 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3893 if (new_state == NLP_STE_UNMAPPED_NODE) {
3894 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
3895 ndlp->nlp_type |= NLP_FC_NODE;
3897 if (new_state == NLP_STE_MAPPED_NODE)
3898 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
3899 if (new_state == NLP_STE_NPR_NODE)
3900 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
3902 /* Transport interface */
3903 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
3904 old_state == NLP_STE_UNMAPPED_NODE)) {
3905 vport->phba->nport_event_cnt++;
3906 lpfc_unregister_remote_port(ndlp);
3909 if (new_state == NLP_STE_MAPPED_NODE ||
3910 new_state == NLP_STE_UNMAPPED_NODE) {
3911 vport->phba->nport_event_cnt++;
3913 * Tell the fc transport about the port, if we haven't
3914 * already. If we have, and it's a scsi entity, be
3915 * sure to unblock any attached scsi devices
3917 lpfc_register_remote_port(vport, ndlp);
3919 if ((new_state == NLP_STE_MAPPED_NODE) &&
3920 (vport->stat_data_enabled)) {
3922 * A new target is discovered, if there is no buffer for
3923 * statistical data collection allocate buffer.
3925 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
3926 sizeof(struct lpfc_scsicmd_bkt),
3929 if (!ndlp->lat_data)
3930 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3931 "0286 lpfc_nlp_state_cleanup failed to "
3932 "allocate statistical data buffer DID "
3933 "0x%x\n", ndlp->nlp_DID);
3936 * if we added to Mapped list, but the remote port
3937 * registration failed or assigned a target id outside
3938 * our presentable range - move the node to the
3941 if (new_state == NLP_STE_MAPPED_NODE &&
3943 ndlp->rport->scsi_target_id == -1 ||
3944 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
3945 spin_lock_irq(shost->host_lock);
3946 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
3947 spin_unlock_irq(shost->host_lock);
3948 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3953 lpfc_nlp_state_name(char *buffer, size_t size, int state)
3955 static char *states[] = {
3956 [NLP_STE_UNUSED_NODE] = "UNUSED",
3957 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
3958 [NLP_STE_ADISC_ISSUE] = "ADISC",
3959 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
3960 [NLP_STE_PRLI_ISSUE] = "PRLI",
3961 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
3962 [NLP_STE_MAPPED_NODE] = "MAPPED",
3963 [NLP_STE_NPR_NODE] = "NPR",
3966 if (state < NLP_STE_MAX_STATE && states[state])
3967 strlcpy(buffer, states[state], size);
3969 snprintf(buffer, size, "unknown (%d)", state);
3974 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3977 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3978 int old_state = ndlp->nlp_state;
3979 char name1[16], name2[16];
3981 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3982 "0904 NPort state transition x%06x, %s -> %s\n",
3984 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
3985 lpfc_nlp_state_name(name2, sizeof(name2), state));
3987 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
3988 "node statechg did:x%x old:%d ste:%d",
3989 ndlp->nlp_DID, old_state, state);
3991 if (old_state == NLP_STE_NPR_NODE &&
3992 state != NLP_STE_NPR_NODE)
3993 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3994 if (old_state == NLP_STE_UNMAPPED_NODE) {
3995 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
3996 ndlp->nlp_type &= ~NLP_FC_NODE;
3999 if (list_empty(&ndlp->nlp_listp)) {
4000 spin_lock_irq(shost->host_lock);
4001 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4002 spin_unlock_irq(shost->host_lock);
4003 } else if (old_state)
4004 lpfc_nlp_counters(vport, old_state, -1);
4006 ndlp->nlp_state = state;
4007 lpfc_nlp_counters(vport, state, 1);
4008 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
4012 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4014 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4016 if (list_empty(&ndlp->nlp_listp)) {
4017 spin_lock_irq(shost->host_lock);
4018 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4019 spin_unlock_irq(shost->host_lock);
4024 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4026 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4028 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4029 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4030 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4031 spin_lock_irq(shost->host_lock);
4032 list_del_init(&ndlp->nlp_listp);
4033 spin_unlock_irq(shost->host_lock);
4034 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4035 NLP_STE_UNUSED_NODE);
4039 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4041 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4042 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4043 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4044 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4045 NLP_STE_UNUSED_NODE);
4048 * lpfc_initialize_node - Initialize all fields of node object
4049 * @vport: Pointer to Virtual Port object.
4050 * @ndlp: Pointer to FC node object.
4051 * @did: FC_ID of the node.
4053 * This function is always called when node object need to be initialized.
4054 * It initializes all the fields of the node object. Although the reference
4055 * to phba from @ndlp can be obtained indirectly through it's reference to
4056 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4057 * to the life-span of the @ndlp might go beyond the existence of @vport as
4058 * the final release of ndlp is determined by its reference count. And, the
4059 * operation on @ndlp needs the reference to phba.
4062 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4065 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
4066 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
4067 init_timer(&ndlp->nlp_delayfunc);
4068 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
4069 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
4070 ndlp->nlp_DID = did;
4071 ndlp->vport = vport;
4072 ndlp->phba = vport->phba;
4073 ndlp->nlp_sid = NLP_NO_SID;
4074 kref_init(&ndlp->kref);
4075 NLP_INT_NODE_ACT(ndlp);
4076 atomic_set(&ndlp->cmd_pending, 0);
4077 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4078 if (vport->phba->sli_rev == LPFC_SLI_REV4)
4079 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba);
4082 struct lpfc_nodelist *
4083 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4086 struct lpfc_hba *phba = vport->phba;
4088 unsigned long flags;
4093 spin_lock_irqsave(&phba->ndlp_lock, flags);
4094 /* The ndlp should not be in memory free mode */
4095 if (NLP_CHK_FREE_REQ(ndlp)) {
4096 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4097 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4098 "0277 lpfc_enable_node: ndlp:x%p "
4099 "usgmap:x%x refcnt:%d\n",
4100 (void *)ndlp, ndlp->nlp_usg_map,
4101 atomic_read(&ndlp->kref.refcount));
4104 /* The ndlp should not already be in active mode */
4105 if (NLP_CHK_NODE_ACT(ndlp)) {
4106 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4107 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4108 "0278 lpfc_enable_node: ndlp:x%p "
4109 "usgmap:x%x refcnt:%d\n",
4110 (void *)ndlp, ndlp->nlp_usg_map,
4111 atomic_read(&ndlp->kref.refcount));
4115 /* Keep the original DID */
4116 did = ndlp->nlp_DID;
4118 /* re-initialize ndlp except of ndlp linked list pointer */
4119 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
4120 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
4121 lpfc_initialize_node(vport, ndlp, did);
4123 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4125 if (state != NLP_STE_UNUSED_NODE)
4126 lpfc_nlp_set_state(vport, ndlp, state);
4128 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4129 "node enable: did:x%x",
4130 ndlp->nlp_DID, 0, 0);
4135 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4138 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
4139 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
4140 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4141 * until ALL other outstanding threads have completed. We check
4142 * that the ndlp not already in the UNUSED state before we proceed.
4144 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4146 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
4147 if (vport->phba->sli_rev == LPFC_SLI_REV4)
4148 lpfc_cleanup_vports_rrqs(vport, ndlp);
4154 * Start / ReStart rescue timer for Discovery / RSCN handling
4157 lpfc_set_disctmo(struct lpfc_vport *vport)
4159 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4160 struct lpfc_hba *phba = vport->phba;
4163 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
4164 /* For FAN, timeout should be greater than edtov */
4165 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
4167 /* Normal discovery timeout should be > than ELS/CT timeout
4168 * FC spec states we need 3 * ratov for CT requests
4170 tmo = ((phba->fc_ratov * 3) + 3);
4174 if (!timer_pending(&vport->fc_disctmo)) {
4175 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4176 "set disc timer: tmo:x%x state:x%x flg:x%x",
4177 tmo, vport->port_state, vport->fc_flag);
4180 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
4181 spin_lock_irq(shost->host_lock);
4182 vport->fc_flag |= FC_DISC_TMO;
4183 spin_unlock_irq(shost->host_lock);
4185 /* Start Discovery Timer state <hba_state> */
4186 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4187 "0247 Start Discovery Timer state x%x "
4188 "Data: x%x x%lx x%x x%x\n",
4189 vport->port_state, tmo,
4190 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
4191 vport->fc_adisc_cnt);
4197 * Cancel rescue timer for Discovery / RSCN handling
4200 lpfc_can_disctmo(struct lpfc_vport *vport)
4202 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4203 unsigned long iflags;
4205 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4206 "can disc timer: state:x%x rtry:x%x flg:x%x",
4207 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
4209 /* Turn off discovery timer if its running */
4210 if (vport->fc_flag & FC_DISC_TMO) {
4211 spin_lock_irqsave(shost->host_lock, iflags);
4212 vport->fc_flag &= ~FC_DISC_TMO;
4213 spin_unlock_irqrestore(shost->host_lock, iflags);
4214 del_timer_sync(&vport->fc_disctmo);
4215 spin_lock_irqsave(&vport->work_port_lock, iflags);
4216 vport->work_port_events &= ~WORKER_DISC_TMO;
4217 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
4220 /* Cancel Discovery Timer state <hba_state> */
4221 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4222 "0248 Cancel Discovery Timer state x%x "
4223 "Data: x%x x%x x%x\n",
4224 vport->port_state, vport->fc_flag,
4225 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
4230 * Check specified ring for outstanding IOCB on the SLI queue
4231 * Return true if iocb matches the specified nport
4234 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
4235 struct lpfc_sli_ring *pring,
4236 struct lpfc_iocbq *iocb,
4237 struct lpfc_nodelist *ndlp)
4239 struct lpfc_sli *psli = &phba->sli;
4240 IOCB_t *icmd = &iocb->iocb;
4241 struct lpfc_vport *vport = ndlp->vport;
4243 if (iocb->vport != vport)
4246 if (pring->ringno == LPFC_ELS_RING) {
4247 switch (icmd->ulpCommand) {
4248 case CMD_GEN_REQUEST64_CR:
4249 if (iocb->context_un.ndlp == ndlp)
4251 case CMD_ELS_REQUEST64_CR:
4252 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
4254 case CMD_XMIT_ELS_RSP64_CX:
4255 if (iocb->context1 == (uint8_t *) ndlp)
4258 } else if (pring->ringno == psli->extra_ring) {
4260 } else if (pring->ringno == psli->fcp_ring) {
4261 /* Skip match check if waiting to relogin to FCP target */
4262 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4263 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
4266 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
4269 } else if (pring->ringno == psli->next_ring) {
4276 * Free resources / clean up outstanding I/Os
4277 * associated with nlp_rpi in the LPFC_NODELIST entry.
4280 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
4282 LIST_HEAD(completions);
4283 struct lpfc_sli *psli;
4284 struct lpfc_sli_ring *pring;
4285 struct lpfc_iocbq *iocb, *next_iocb;
4288 lpfc_fabric_abort_nport(ndlp);
4291 * Everything that matches on txcmplq will be returned
4292 * by firmware with a no rpi error.
4295 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4296 /* Now process each ring */
4297 for (i = 0; i < psli->num_rings; i++) {
4298 pring = &psli->ring[i];
4300 spin_lock_irq(&phba->hbalock);
4301 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
4304 * Check to see if iocb matches the nport we are
4307 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
4309 /* It matches, so deque and call compl
4311 list_move_tail(&iocb->list,
4316 spin_unlock_irq(&phba->hbalock);
4320 /* Cancel all the IOCBs from the completions list */
4321 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4328 * Free rpi associated with LPFC_NODELIST entry.
4329 * This routine is called from lpfc_freenode(), when we are removing
4330 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4331 * LOGO that completes successfully, and we are waiting to PLOGI back
4332 * to the remote NPort. In addition, it is called after we receive
4333 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4334 * we are waiting to PLOGI back to the remote NPort.
4337 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4339 struct lpfc_hba *phba = vport->phba;
4344 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4345 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4347 /* SLI4 ports require the physical rpi value. */
4348 rpi = ndlp->nlp_rpi;
4349 if (phba->sli_rev == LPFC_SLI_REV4)
4350 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
4351 lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
4352 mbox->vport = vport;
4353 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4354 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4355 if (rc == MBX_NOT_FINISHED)
4356 mempool_free(mbox, phba->mbox_mem_pool);
4358 lpfc_no_rpi(phba, ndlp);
4360 if (phba->sli_rev != LPFC_SLI_REV4)
4362 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
4363 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4370 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4371 * @phba: pointer to lpfc hba data structure.
4373 * This routine is invoked to unregister all the currently registered RPIs
4377 lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
4379 struct lpfc_vport **vports;
4380 struct lpfc_nodelist *ndlp;
4381 struct Scsi_Host *shost;
4384 vports = lpfc_create_vport_work_array(phba);
4386 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
4387 "2884 Vport array allocation failed \n");
4390 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4391 shost = lpfc_shost_from_vport(vports[i]);
4392 spin_lock_irq(shost->host_lock);
4393 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
4394 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4395 /* The mempool_alloc might sleep */
4396 spin_unlock_irq(shost->host_lock);
4397 lpfc_unreg_rpi(vports[i], ndlp);
4398 spin_lock_irq(shost->host_lock);
4401 spin_unlock_irq(shost->host_lock);
4403 lpfc_destroy_vport_work_array(phba, vports);
4407 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
4409 struct lpfc_hba *phba = vport->phba;
4413 if (phba->sli_rev == LPFC_SLI_REV4) {
4414 lpfc_sli4_unreg_all_rpis(vport);
4418 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4420 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
4422 mbox->vport = vport;
4423 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4424 mbox->context1 = NULL;
4425 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
4426 if (rc != MBX_TIMEOUT)
4427 mempool_free(mbox, phba->mbox_mem_pool);
4429 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4430 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4431 "1836 Could not issue "
4432 "unreg_login(all_rpis) status %d\n", rc);
4437 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
4439 struct lpfc_hba *phba = vport->phba;
4443 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4445 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
4447 mbox->vport = vport;
4448 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4449 mbox->context1 = NULL;
4450 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
4451 if (rc != MBX_TIMEOUT)
4452 mempool_free(mbox, phba->mbox_mem_pool);
4454 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4455 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4456 "1815 Could not issue "
4457 "unreg_did (default rpis) status %d\n",
4463 * Free resources associated with LPFC_NODELIST entry
4464 * so it can be freed.
4467 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4469 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4470 struct lpfc_hba *phba = vport->phba;
4471 LPFC_MBOXQ_t *mb, *nextmb;
4472 struct lpfc_dmabuf *mp;
4474 /* Cleanup node for NPort <nlp_DID> */
4475 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4476 "0900 Cleanup node for NPort x%x "
4477 "Data: x%x x%x x%x\n",
4478 ndlp->nlp_DID, ndlp->nlp_flag,
4479 ndlp->nlp_state, ndlp->nlp_rpi);
4480 if (NLP_CHK_FREE_REQ(ndlp)) {
4481 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4482 "0280 lpfc_cleanup_node: ndlp:x%p "
4483 "usgmap:x%x refcnt:%d\n",
4484 (void *)ndlp, ndlp->nlp_usg_map,
4485 atomic_read(&ndlp->kref.refcount));
4486 lpfc_dequeue_node(vport, ndlp);
4488 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4489 "0281 lpfc_cleanup_node: ndlp:x%p "
4490 "usgmap:x%x refcnt:%d\n",
4491 (void *)ndlp, ndlp->nlp_usg_map,
4492 atomic_read(&ndlp->kref.refcount));
4493 lpfc_disable_node(vport, ndlp);
4496 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
4497 if ((mb = phba->sli.mbox_active)) {
4498 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
4499 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
4500 mb->context2 = NULL;
4501 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4505 spin_lock_irq(&phba->hbalock);
4506 /* Cleanup REG_LOGIN completions which are not yet processed */
4507 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
4508 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
4509 (ndlp != (struct lpfc_nodelist *) mb->context2))
4512 mb->context2 = NULL;
4513 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4516 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
4517 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
4518 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
4519 mp = (struct lpfc_dmabuf *) (mb->context1);
4521 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
4524 list_del(&mb->list);
4525 mempool_free(mb, phba->mbox_mem_pool);
4526 /* We shall not invoke the lpfc_nlp_put to decrement
4527 * the ndlp reference count as we are in the process
4528 * of lpfc_nlp_release.
4532 spin_unlock_irq(&phba->hbalock);
4534 lpfc_els_abort(phba, ndlp);
4536 spin_lock_irq(shost->host_lock);
4537 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
4538 spin_unlock_irq(shost->host_lock);
4540 ndlp->nlp_last_elscmd = 0;
4541 del_timer_sync(&ndlp->nlp_delayfunc);
4543 list_del_init(&ndlp->els_retry_evt.evt_listp);
4544 list_del_init(&ndlp->dev_loss_evt.evt_listp);
4545 lpfc_cleanup_vports_rrqs(vport, ndlp);
4546 lpfc_unreg_rpi(vport, ndlp);
4552 * Check to see if we can free the nlp back to the freelist.
4553 * If we are in the middle of using the nlp in the discovery state
4554 * machine, defer the free till we reach the end of the state machine.
4557 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4559 struct lpfc_hba *phba = vport->phba;
4560 struct lpfc_rport_data *rdata;
4564 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4565 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
4566 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
4567 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
4568 /* For this case we need to cleanup the default rpi
4569 * allocated by the firmware.
4571 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
4573 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
4574 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi);
4576 mempool_free(mbox, phba->mbox_mem_pool);
4579 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
4580 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
4581 mbox->vport = vport;
4582 mbox->context2 = NULL;
4583 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4584 if (rc == MBX_NOT_FINISHED) {
4585 mempool_free(mbox, phba->mbox_mem_pool);
4590 lpfc_cleanup_node(vport, ndlp);
4593 * We can get here with a non-NULL ndlp->rport because when we
4594 * unregister a rport we don't break the rport/node linkage. So if we
4595 * do, make sure we don't leaving any dangling pointers behind.
4598 rdata = ndlp->rport->dd_data;
4599 rdata->pnode = NULL;
4605 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4608 D_ID mydid, ndlpdid, matchdid;
4610 if (did == Bcast_DID)
4613 /* First check for Direct match */
4614 if (ndlp->nlp_DID == did)
4617 /* Next check for area/domain identically equals 0 match */
4618 mydid.un.word = vport->fc_myDID;
4619 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
4623 matchdid.un.word = did;
4624 ndlpdid.un.word = ndlp->nlp_DID;
4625 if (matchdid.un.b.id == ndlpdid.un.b.id) {
4626 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
4627 (mydid.un.b.area == matchdid.un.b.area)) {
4628 if ((ndlpdid.un.b.domain == 0) &&
4629 (ndlpdid.un.b.area == 0)) {
4630 if (ndlpdid.un.b.id)
4636 matchdid.un.word = ndlp->nlp_DID;
4637 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
4638 (mydid.un.b.area == ndlpdid.un.b.area)) {
4639 if ((matchdid.un.b.domain == 0) &&
4640 (matchdid.un.b.area == 0)) {
4641 if (matchdid.un.b.id)
4649 /* Search for a nodelist entry */
4650 static struct lpfc_nodelist *
4651 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
4653 struct lpfc_nodelist *ndlp;
4656 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4657 if (lpfc_matchdid(vport, ndlp, did)) {
4658 data1 = (((uint32_t) ndlp->nlp_state << 24) |
4659 ((uint32_t) ndlp->nlp_xri << 16) |
4660 ((uint32_t) ndlp->nlp_type << 8) |
4661 ((uint32_t) ndlp->nlp_rpi & 0xff));
4662 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4663 "0929 FIND node DID "
4664 "Data: x%p x%x x%x x%x\n",
4665 ndlp, ndlp->nlp_DID,
4666 ndlp->nlp_flag, data1);
4671 /* FIND node did <did> NOT FOUND */
4672 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4673 "0932 FIND node did x%x NOT FOUND.\n", did);
4677 struct lpfc_nodelist *
4678 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
4680 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4681 struct lpfc_nodelist *ndlp;
4682 unsigned long iflags;
4684 spin_lock_irqsave(shost->host_lock, iflags);
4685 ndlp = __lpfc_findnode_did(vport, did);
4686 spin_unlock_irqrestore(shost->host_lock, iflags);
4690 struct lpfc_nodelist *
4691 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
4693 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4694 struct lpfc_nodelist *ndlp;
4696 ndlp = lpfc_findnode_did(vport, did);
4698 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
4699 lpfc_rscn_payload_check(vport, did) == 0)
4701 ndlp = (struct lpfc_nodelist *)
4702 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
4705 lpfc_nlp_init(vport, ndlp, did);
4706 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4707 spin_lock_irq(shost->host_lock);
4708 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4709 spin_unlock_irq(shost->host_lock);
4711 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4712 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
4715 spin_lock_irq(shost->host_lock);
4716 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4717 spin_unlock_irq(shost->host_lock);
4721 if ((vport->fc_flag & FC_RSCN_MODE) &&
4722 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
4723 if (lpfc_rscn_payload_check(vport, did)) {
4724 /* If we've already received a PLOGI from this NPort
4725 * we don't need to try to discover it again.
4727 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
4730 /* Since this node is marked for discovery,
4731 * delay timeout is not needed.
4733 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4734 spin_lock_irq(shost->host_lock);
4735 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4736 spin_unlock_irq(shost->host_lock);
4740 /* If we've already received a PLOGI from this NPort,
4741 * or we are already in the process of discovery on it,
4742 * we don't need to try to discover it again.
4744 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
4745 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
4746 ndlp->nlp_flag & NLP_RCV_PLOGI)
4748 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4749 spin_lock_irq(shost->host_lock);
4750 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4751 spin_unlock_irq(shost->host_lock);
4756 /* Build a list of nodes to discover based on the loopmap */
4758 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
4760 struct lpfc_hba *phba = vport->phba;
4762 uint32_t alpa, index;
4764 if (!lpfc_is_link_up(phba))
4767 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
4770 /* Check for loop map present or not */
4771 if (phba->alpa_map[0]) {
4772 for (j = 1; j <= phba->alpa_map[0]; j++) {
4773 alpa = phba->alpa_map[j];
4774 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
4776 lpfc_setup_disc_node(vport, alpa);
4779 /* No alpamap, so try all alpa's */
4780 for (j = 0; j < FC_MAXLOOP; j++) {
4781 /* If cfg_scan_down is set, start from highest
4782 * ALPA (0xef) to lowest (0x1).
4784 if (vport->cfg_scan_down)
4787 index = FC_MAXLOOP - j - 1;
4788 alpa = lpfcAlpaArray[index];
4789 if ((vport->fc_myDID & 0xff) == alpa)
4791 lpfc_setup_disc_node(vport, alpa);
4798 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
4801 struct lpfc_sli *psli = &phba->sli;
4802 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
4803 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
4804 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
4808 * if it's not a physical port or if we already send
4809 * clear_la then don't send it.
4811 if ((phba->link_state >= LPFC_CLEAR_LA) ||
4812 (vport->port_type != LPFC_PHYSICAL_PORT) ||
4813 (phba->sli_rev == LPFC_SLI_REV4))
4816 /* Link up discovery */
4817 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
4818 phba->link_state = LPFC_CLEAR_LA;
4819 lpfc_clear_la(phba, mbox);
4820 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
4821 mbox->vport = vport;
4822 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4823 if (rc == MBX_NOT_FINISHED) {
4824 mempool_free(mbox, phba->mbox_mem_pool);
4825 lpfc_disc_flush_list(vport);
4826 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4827 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4828 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4829 phba->link_state = LPFC_HBA_ERROR;
4834 /* Reg_vpi to tell firmware to resume normal operations */
4836 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
4838 LPFC_MBOXQ_t *regvpimbox;
4840 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4842 lpfc_reg_vpi(vport, regvpimbox);
4843 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
4844 regvpimbox->vport = vport;
4845 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
4846 == MBX_NOT_FINISHED) {
4847 mempool_free(regvpimbox, phba->mbox_mem_pool);
4852 /* Start Link up / RSCN discovery on NPR nodes */
4854 lpfc_disc_start(struct lpfc_vport *vport)
4856 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4857 struct lpfc_hba *phba = vport->phba;
4859 uint32_t clear_la_pending;
4862 if (!lpfc_is_link_up(phba))
4865 if (phba->link_state == LPFC_CLEAR_LA)
4866 clear_la_pending = 1;
4868 clear_la_pending = 0;
4870 if (vport->port_state < LPFC_VPORT_READY)
4871 vport->port_state = LPFC_DISC_AUTH;
4873 lpfc_set_disctmo(vport);
4875 if (vport->fc_prevDID == vport->fc_myDID)
4880 vport->fc_prevDID = vport->fc_myDID;
4881 vport->num_disc_nodes = 0;
4883 /* Start Discovery state <hba_state> */
4884 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4885 "0202 Start Discovery hba state x%x "
4886 "Data: x%x x%x x%x\n",
4887 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
4888 vport->fc_adisc_cnt);
4890 /* First do ADISCs - if any */
4891 num_sent = lpfc_els_disc_adisc(vport);
4896 /* Register the VPI for SLI3, NON-NPIV only. */
4897 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
4898 !(vport->fc_flag & FC_PT2PT) &&
4899 !(vport->fc_flag & FC_RSCN_MODE) &&
4900 (phba->sli_rev < LPFC_SLI_REV4)) {
4901 lpfc_issue_reg_vpi(phba, vport);
4906 * For SLI2, we need to set port_state to READY and continue
4909 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
4910 /* If we get here, there is nothing to ADISC */
4911 if (vport->port_type == LPFC_PHYSICAL_PORT)
4912 lpfc_issue_clear_la(phba, vport);
4914 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
4915 vport->num_disc_nodes = 0;
4916 /* go thru NPR nodes and issue ELS PLOGIs */
4917 if (vport->fc_npr_cnt)
4918 lpfc_els_disc_plogi(vport);
4920 if (!vport->num_disc_nodes) {
4921 spin_lock_irq(shost->host_lock);
4922 vport->fc_flag &= ~FC_NDISC_ACTIVE;
4923 spin_unlock_irq(shost->host_lock);
4924 lpfc_can_disctmo(vport);
4927 vport->port_state = LPFC_VPORT_READY;
4929 /* Next do PLOGIs - if any */
4930 num_sent = lpfc_els_disc_plogi(vport);
4935 if (vport->fc_flag & FC_RSCN_MODE) {
4936 /* Check to see if more RSCNs came in while we
4937 * were processing this one.
4939 if ((vport->fc_rscn_id_cnt == 0) &&
4940 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
4941 spin_lock_irq(shost->host_lock);
4942 vport->fc_flag &= ~FC_RSCN_MODE;
4943 spin_unlock_irq(shost->host_lock);
4944 lpfc_can_disctmo(vport);
4946 lpfc_els_handle_rscn(vport);
4953 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
4954 * ring the match the sppecified nodelist.
4957 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
4959 LIST_HEAD(completions);
4960 struct lpfc_sli *psli;
4962 struct lpfc_iocbq *iocb, *next_iocb;
4963 struct lpfc_sli_ring *pring;
4966 pring = &psli->ring[LPFC_ELS_RING];
4968 /* Error matching iocb on txq or txcmplq
4969 * First check the txq.
4971 spin_lock_irq(&phba->hbalock);
4972 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
4973 if (iocb->context1 != ndlp) {
4977 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
4978 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
4980 list_move_tail(&iocb->list, &completions);
4985 /* Next check the txcmplq */
4986 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
4987 if (iocb->context1 != ndlp) {
4991 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
4992 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
4993 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
4996 spin_unlock_irq(&phba->hbalock);
4998 /* Cancel all the IOCBs from the completions list */
4999 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
5004 lpfc_disc_flush_list(struct lpfc_vport *vport)
5006 struct lpfc_nodelist *ndlp, *next_ndlp;
5007 struct lpfc_hba *phba = vport->phba;
5009 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
5010 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5012 if (!NLP_CHK_NODE_ACT(ndlp))
5014 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5015 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
5016 lpfc_free_tx(phba, ndlp);
5023 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
5025 lpfc_els_flush_rscn(vport);
5026 lpfc_els_flush_cmd(vport);
5027 lpfc_disc_flush_list(vport);
5030 /*****************************************************************************/
5032 * NAME: lpfc_disc_timeout
5034 * FUNCTION: Fibre Channel driver discovery timeout routine.
5036 * EXECUTION ENVIRONMENT: interrupt only
5044 /*****************************************************************************/
5046 lpfc_disc_timeout(unsigned long ptr)
5048 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
5049 struct lpfc_hba *phba = vport->phba;
5050 uint32_t tmo_posted;
5051 unsigned long flags = 0;
5053 if (unlikely(!phba))
5056 spin_lock_irqsave(&vport->work_port_lock, flags);
5057 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
5059 vport->work_port_events |= WORKER_DISC_TMO;
5060 spin_unlock_irqrestore(&vport->work_port_lock, flags);
5063 lpfc_worker_wake_up(phba);
5068 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
5070 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5071 struct lpfc_hba *phba = vport->phba;
5072 struct lpfc_sli *psli = &phba->sli;
5073 struct lpfc_nodelist *ndlp, *next_ndlp;
5074 LPFC_MBOXQ_t *initlinkmbox;
5075 int rc, clrlaerr = 0;
5077 if (!(vport->fc_flag & FC_DISC_TMO))
5080 spin_lock_irq(shost->host_lock);
5081 vport->fc_flag &= ~FC_DISC_TMO;
5082 spin_unlock_irq(shost->host_lock);
5084 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
5085 "disc timeout: state:x%x rtry:x%x flg:x%x",
5086 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
5088 switch (vport->port_state) {
5090 case LPFC_LOCAL_CFG_LINK:
5091 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
5095 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
5096 "0221 FAN timeout\n");
5097 /* Start discovery by sending FLOGI, clean up old rpis */
5098 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5100 if (!NLP_CHK_NODE_ACT(ndlp))
5102 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
5104 if (ndlp->nlp_type & NLP_FABRIC) {
5105 /* Clean up the ndlp on Fabric connections */
5106 lpfc_drop_node(vport, ndlp);
5108 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
5109 /* Fail outstanding IO now since device
5110 * is marked for PLOGI.
5112 lpfc_unreg_rpi(vport, ndlp);
5115 if (vport->port_state != LPFC_FLOGI) {
5116 if (phba->sli_rev <= LPFC_SLI_REV3)
5117 lpfc_initial_flogi(vport);
5119 lpfc_issue_init_vfi(vport);
5126 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
5127 /* Initial FLOGI timeout */
5128 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5129 "0222 Initial %s timeout\n",
5130 vport->vpi ? "FDISC" : "FLOGI");
5132 /* Assume no Fabric and go on with discovery.
5133 * Check for outstanding ELS FLOGI to abort.
5136 /* FLOGI failed, so just use loop map to make discovery list */
5137 lpfc_disc_list_loopmap(vport);
5139 /* Start discovery */
5140 lpfc_disc_start(vport);
5143 case LPFC_FABRIC_CFG_LINK:
5144 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5146 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5147 "0223 Timeout while waiting for "
5148 "NameServer login\n");
5149 /* Next look for NameServer ndlp */
5150 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5151 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
5152 lpfc_els_abort(phba, ndlp);
5154 /* ReStart discovery */
5158 /* Check for wait for NameServer Rsp timeout */
5159 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5160 "0224 NameServer Query timeout "
5162 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5164 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
5165 /* Try it one more time */
5166 vport->fc_ns_retry++;
5167 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
5168 vport->fc_ns_retry, 0);
5172 vport->fc_ns_retry = 0;
5176 * Discovery is over.
5177 * set port_state to PORT_READY if SLI2.
5178 * cmpl_reg_vpi will set port_state to READY for SLI3.
5180 if (phba->sli_rev < LPFC_SLI_REV4) {
5181 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5182 lpfc_issue_reg_vpi(phba, vport);
5184 lpfc_issue_clear_la(phba, vport);
5185 vport->port_state = LPFC_VPORT_READY;
5189 /* Setup and issue mailbox INITIALIZE LINK command */
5190 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5191 if (!initlinkmbox) {
5192 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5193 "0206 Device Discovery "
5194 "completion error\n");
5195 phba->link_state = LPFC_HBA_ERROR;
5199 lpfc_linkdown(phba);
5200 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
5201 phba->cfg_link_speed);
5202 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
5203 initlinkmbox->vport = vport;
5204 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5205 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
5206 lpfc_set_loopback_flag(phba);
5207 if (rc == MBX_NOT_FINISHED)
5208 mempool_free(initlinkmbox, phba->mbox_mem_pool);
5212 case LPFC_DISC_AUTH:
5213 /* Node Authentication timeout */
5214 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5215 "0227 Node Authentication timeout\n");
5216 lpfc_disc_flush_list(vport);
5219 * set port_state to PORT_READY if SLI2.
5220 * cmpl_reg_vpi will set port_state to READY for SLI3.
5222 if (phba->sli_rev < LPFC_SLI_REV4) {
5223 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5224 lpfc_issue_reg_vpi(phba, vport);
5225 else { /* NPIV Not enabled */
5226 lpfc_issue_clear_la(phba, vport);
5227 vport->port_state = LPFC_VPORT_READY;
5232 case LPFC_VPORT_READY:
5233 if (vport->fc_flag & FC_RSCN_MODE) {
5234 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5235 "0231 RSCN timeout Data: x%x "
5237 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5239 /* Cleanup any outstanding ELS commands */
5240 lpfc_els_flush_cmd(vport);
5242 lpfc_els_flush_rscn(vport);
5243 lpfc_disc_flush_list(vport);
5248 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5249 "0273 Unexpected discovery timeout, "
5250 "vport State x%x\n", vport->port_state);
5254 switch (phba->link_state) {
5256 /* CLEAR LA timeout */
5257 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5258 "0228 CLEAR LA timeout\n");
5263 lpfc_issue_clear_la(phba, vport);
5265 case LPFC_LINK_UNKNOWN:
5266 case LPFC_WARM_START:
5267 case LPFC_INIT_START:
5268 case LPFC_INIT_MBX_CMDS:
5269 case LPFC_LINK_DOWN:
5270 case LPFC_HBA_ERROR:
5271 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5272 "0230 Unexpected timeout, hba link "
5273 "state x%x\n", phba->link_state);
5277 case LPFC_HBA_READY:
5282 lpfc_disc_flush_list(vport);
5283 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
5284 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
5285 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
5286 vport->port_state = LPFC_VPORT_READY;
5293 * This routine handles processing a NameServer REG_LOGIN mailbox
5294 * command upon completion. It is setup in the LPFC_MBOXQ
5295 * as the completion routine when the command is
5296 * handed off to the SLI layer.
5299 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5301 MAILBOX_t *mb = &pmb->u.mb;
5302 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
5303 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
5304 struct lpfc_vport *vport = pmb->vport;
5306 pmb->context1 = NULL;
5307 pmb->context2 = NULL;
5309 if (phba->sli_rev < LPFC_SLI_REV4)
5310 ndlp->nlp_rpi = mb->un.varWords[0];
5311 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
5312 ndlp->nlp_type |= NLP_FABRIC;
5313 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
5316 * Start issuing Fabric-Device Management Interface (FDMI) command to
5317 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
5318 * fdmi-on=2 (supporting RPA/hostnmae)
5321 if (vport->cfg_fdmi_on == 1)
5322 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
5324 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
5326 /* decrement the node reference count held for this callback
5330 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5332 mempool_free(pmb, phba->mbox_mem_pool);
5338 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
5340 uint16_t *rpi = param;
5342 /* check for active node */
5343 if (!NLP_CHK_NODE_ACT(ndlp))
5346 return ndlp->nlp_rpi == *rpi;
5350 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
5352 return memcmp(&ndlp->nlp_portname, param,
5353 sizeof(ndlp->nlp_portname)) == 0;
5356 static struct lpfc_nodelist *
5357 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
5359 struct lpfc_nodelist *ndlp;
5361 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5362 if (filter(ndlp, param))
5369 * This routine looks up the ndlp lists for the given RPI. If rpi found it
5370 * returns the node list element pointer else return NULL.
5372 struct lpfc_nodelist *
5373 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
5375 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
5379 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
5380 * returns the node element list pointer else return NULL.
5382 struct lpfc_nodelist *
5383 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
5385 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5386 struct lpfc_nodelist *ndlp;
5388 spin_lock_irq(shost->host_lock);
5389 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
5390 spin_unlock_irq(shost->host_lock);
5395 * This routine looks up the ndlp lists for the given RPI. If the rpi
5396 * is found, the routine returns the node element list pointer else
5399 struct lpfc_nodelist *
5400 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
5402 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5403 struct lpfc_nodelist *ndlp;
5405 spin_lock_irq(shost->host_lock);
5406 ndlp = __lpfc_findnode_rpi(vport, rpi);
5407 spin_unlock_irq(shost->host_lock);
5412 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
5413 * @phba: pointer to lpfc hba data structure.
5414 * @vpi: the physical host virtual N_Port identifier.
5416 * This routine finds a vport on a HBA (referred by @phba) through a
5417 * @vpi. The function walks the HBA's vport list and returns the address
5418 * of the vport with the matching @vpi.
5421 * NULL - No vport with the matching @vpi found
5422 * Otherwise - Address to the vport with the matching @vpi.
5425 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
5427 struct lpfc_vport *vport;
5428 unsigned long flags;
5431 /* The physical ports are always vpi 0 - translate is unnecessary. */
5434 * Translate the physical vpi to the logical vpi. The
5435 * vport stores the logical vpi.
5437 for (i = 0; i < phba->max_vpi; i++) {
5438 if (vpi == phba->vpi_ids[i])
5442 if (i >= phba->max_vpi) {
5443 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
5444 "2936 Could not find Vport mapped "
5445 "to vpi %d\n", vpi);
5450 spin_lock_irqsave(&phba->hbalock, flags);
5451 list_for_each_entry(vport, &phba->port_list, listentry) {
5452 if (vport->vpi == i) {
5453 spin_unlock_irqrestore(&phba->hbalock, flags);
5457 spin_unlock_irqrestore(&phba->hbalock, flags);
5462 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
5465 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
5467 lpfc_initialize_node(vport, ndlp, did);
5468 INIT_LIST_HEAD(&ndlp->nlp_listp);
5470 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
5471 "node init: did:x%x",
5472 ndlp->nlp_DID, 0, 0);
5477 /* This routine releases all resources associated with a specifc NPort's ndlp
5478 * and mempool_free's the nodelist.
5481 lpfc_nlp_release(struct kref *kref)
5483 struct lpfc_hba *phba;
5484 unsigned long flags;
5485 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
5488 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5489 "node release: did:x%x flg:x%x type:x%x",
5490 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
5492 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
5493 "0279 lpfc_nlp_release: ndlp:x%p "
5494 "usgmap:x%x refcnt:%d\n",
5495 (void *)ndlp, ndlp->nlp_usg_map,
5496 atomic_read(&ndlp->kref.refcount));
5498 /* remove ndlp from action. */
5499 lpfc_nlp_remove(ndlp->vport, ndlp);
5501 /* clear the ndlp active flag for all release cases */
5503 spin_lock_irqsave(&phba->ndlp_lock, flags);
5504 NLP_CLR_NODE_ACT(ndlp);
5505 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5506 if (phba->sli_rev == LPFC_SLI_REV4)
5507 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
5509 /* free ndlp memory for final ndlp release */
5510 if (NLP_CHK_FREE_REQ(ndlp)) {
5511 kfree(ndlp->lat_data);
5512 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
5516 /* This routine bumps the reference count for a ndlp structure to ensure
5517 * that one discovery thread won't free a ndlp while another discovery thread
5520 struct lpfc_nodelist *
5521 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
5523 struct lpfc_hba *phba;
5524 unsigned long flags;
5527 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5528 "node get: did:x%x flg:x%x refcnt:x%x",
5529 ndlp->nlp_DID, ndlp->nlp_flag,
5530 atomic_read(&ndlp->kref.refcount));
5531 /* The check of ndlp usage to prevent incrementing the
5532 * ndlp reference count that is in the process of being
5536 spin_lock_irqsave(&phba->ndlp_lock, flags);
5537 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
5538 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5539 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5540 "0276 lpfc_nlp_get: ndlp:x%p "
5541 "usgmap:x%x refcnt:%d\n",
5542 (void *)ndlp, ndlp->nlp_usg_map,
5543 atomic_read(&ndlp->kref.refcount));
5546 kref_get(&ndlp->kref);
5547 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5552 /* This routine decrements the reference count for a ndlp structure. If the
5553 * count goes to 0, this indicates the the associated nodelist should be
5554 * freed. Returning 1 indicates the ndlp resource has been released; on the
5555 * other hand, returning 0 indicates the ndlp resource has not been released
5559 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
5561 struct lpfc_hba *phba;
5562 unsigned long flags;
5567 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5568 "node put: did:x%x flg:x%x refcnt:x%x",
5569 ndlp->nlp_DID, ndlp->nlp_flag,
5570 atomic_read(&ndlp->kref.refcount));
5572 spin_lock_irqsave(&phba->ndlp_lock, flags);
5573 /* Check the ndlp memory free acknowledge flag to avoid the
5574 * possible race condition that kref_put got invoked again
5575 * after previous one has done ndlp memory free.
5577 if (NLP_CHK_FREE_ACK(ndlp)) {
5578 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5579 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5580 "0274 lpfc_nlp_put: ndlp:x%p "
5581 "usgmap:x%x refcnt:%d\n",
5582 (void *)ndlp, ndlp->nlp_usg_map,
5583 atomic_read(&ndlp->kref.refcount));
5586 /* Check the ndlp inactivate log flag to avoid the possible
5587 * race condition that kref_put got invoked again after ndlp
5588 * is already in inactivating state.
5590 if (NLP_CHK_IACT_REQ(ndlp)) {
5591 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5592 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5593 "0275 lpfc_nlp_put: ndlp:x%p "
5594 "usgmap:x%x refcnt:%d\n",
5595 (void *)ndlp, ndlp->nlp_usg_map,
5596 atomic_read(&ndlp->kref.refcount));
5599 /* For last put, mark the ndlp usage flags to make sure no
5600 * other kref_get and kref_put on the same ndlp shall get
5601 * in between the process when the final kref_put has been
5602 * invoked on this ndlp.
5604 if (atomic_read(&ndlp->kref.refcount) == 1) {
5605 /* Indicate ndlp is put to inactive state. */
5606 NLP_SET_IACT_REQ(ndlp);
5607 /* Acknowledge ndlp memory free has been seen. */
5608 if (NLP_CHK_FREE_REQ(ndlp))
5609 NLP_SET_FREE_ACK(ndlp);
5611 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5612 /* Note, the kref_put returns 1 when decrementing a reference
5613 * count that was 1, it invokes the release callback function,
5614 * but it still left the reference count as 1 (not actually
5615 * performs the last decrementation). Otherwise, it actually
5616 * decrements the reference count and returns 0.
5618 return kref_put(&ndlp->kref, lpfc_nlp_release);
5621 /* This routine free's the specified nodelist if it is not in use
5622 * by any other discovery thread. This routine returns 1 if the
5623 * ndlp has been freed. A return value of 0 indicates the ndlp is
5624 * not yet been released.
5627 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
5629 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5630 "node not used: did:x%x flg:x%x refcnt:x%x",
5631 ndlp->nlp_DID, ndlp->nlp_flag,
5632 atomic_read(&ndlp->kref.refcount));
5633 if (atomic_read(&ndlp->kref.refcount) == 1)
5634 if (lpfc_nlp_put(ndlp))
5640 * lpfc_fcf_inuse - Check if FCF can be unregistered.
5641 * @phba: Pointer to hba context object.
5643 * This function iterate through all FC nodes associated
5644 * will all vports to check if there is any node with
5645 * fc_rports associated with it. If there is an fc_rport
5646 * associated with the node, then the node is either in
5647 * discovered state or its devloss_timer is pending.
5650 lpfc_fcf_inuse(struct lpfc_hba *phba)
5652 struct lpfc_vport **vports;
5654 struct lpfc_nodelist *ndlp;
5655 struct Scsi_Host *shost;
5657 vports = lpfc_create_vport_work_array(phba);
5659 /* If driver cannot allocate memory, indicate fcf is in use */
5663 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
5664 shost = lpfc_shost_from_vport(vports[i]);
5665 spin_lock_irq(shost->host_lock);
5667 * IF the CVL_RCVD bit is not set then we have sent the
5669 * If dev_loss fires while we are waiting we do not want to
5672 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
5673 spin_unlock_irq(shost->host_lock);
5677 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
5678 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
5679 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
5681 spin_unlock_irq(shost->host_lock);
5683 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
5685 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
5686 "2624 RPI %x DID %x flag %x "
5687 "still logged in\n",
5688 ndlp->nlp_rpi, ndlp->nlp_DID,
5692 spin_unlock_irq(shost->host_lock);
5695 lpfc_destroy_vport_work_array(phba, vports);
5700 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
5701 * @phba: Pointer to hba context object.
5702 * @mboxq: Pointer to mailbox object.
5704 * This function frees memory associated with the mailbox command.
5707 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5709 struct lpfc_vport *vport = mboxq->vport;
5710 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5712 if (mboxq->u.mb.mbxStatus) {
5713 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5714 "2555 UNREG_VFI mbxStatus error x%x "
5716 mboxq->u.mb.mbxStatus, vport->port_state);
5718 spin_lock_irq(shost->host_lock);
5719 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
5720 spin_unlock_irq(shost->host_lock);
5721 mempool_free(mboxq, phba->mbox_mem_pool);
5726 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
5727 * @phba: Pointer to hba context object.
5728 * @mboxq: Pointer to mailbox object.
5730 * This function frees memory associated with the mailbox command.
5733 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5735 struct lpfc_vport *vport = mboxq->vport;
5737 if (mboxq->u.mb.mbxStatus) {
5738 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5739 "2550 UNREG_FCFI mbxStatus error x%x "
5741 mboxq->u.mb.mbxStatus, vport->port_state);
5743 mempool_free(mboxq, phba->mbox_mem_pool);
5748 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
5749 * @phba: Pointer to hba context object.
5751 * This function prepare the HBA for unregistering the currently registered
5752 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
5756 lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
5758 struct lpfc_vport **vports;
5759 struct lpfc_nodelist *ndlp;
5760 struct Scsi_Host *shost;
5763 /* Unregister RPIs */
5764 if (lpfc_fcf_inuse(phba))
5765 lpfc_unreg_hba_rpis(phba);
5767 /* At this point, all discovery is aborted */
5768 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
5770 /* Unregister VPIs */
5771 vports = lpfc_create_vport_work_array(phba);
5772 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
5773 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
5774 /* Stop FLOGI/FDISC retries */
5775 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
5777 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
5778 lpfc_cleanup_pending_mbox(vports[i]);
5779 if (phba->sli_rev == LPFC_SLI_REV4)
5780 lpfc_sli4_unreg_all_rpis(vports[i]);
5781 lpfc_mbx_unreg_vpi(vports[i]);
5782 shost = lpfc_shost_from_vport(vports[i]);
5783 spin_lock_irq(shost->host_lock);
5784 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
5785 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
5786 spin_unlock_irq(shost->host_lock);
5788 lpfc_destroy_vport_work_array(phba, vports);
5790 /* Cleanup any outstanding ELS commands */
5791 lpfc_els_flush_all_cmd(phba);
5793 /* Unregister the physical port VFI */
5794 rc = lpfc_issue_unreg_vfi(phba->pport);
5799 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
5800 * @phba: Pointer to hba context object.
5802 * This function issues synchronous unregister FCF mailbox command to HBA to
5803 * unregister the currently registered FCF record. The driver does not reset
5804 * the driver FCF usage state flags.
5806 * Return 0 if successfully issued, none-zero otherwise.
5809 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
5814 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5816 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5817 "2551 UNREG_FCFI mbox allocation failed"
5818 "HBA state x%x\n", phba->pport->port_state);
5821 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
5822 mbox->vport = phba->pport;
5823 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
5824 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5826 if (rc == MBX_NOT_FINISHED) {
5827 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5828 "2552 Unregister FCFI command failed rc x%x "
5830 rc, phba->pport->port_state);
5837 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
5838 * @phba: Pointer to hba context object.
5840 * This function unregisters the currently reigstered FCF. This function
5841 * also tries to find another FCF for discovery by rescan the HBA FCF table.
5844 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
5848 /* Preparation for unregistering fcf */
5849 rc = lpfc_unregister_fcf_prep(phba);
5851 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
5852 "2748 Failed to prepare for unregistering "
5853 "HBA's FCF record: rc=%d\n", rc);
5857 /* Now, unregister FCF record and reset HBA FCF state */
5858 rc = lpfc_sli4_unregister_fcf(phba);
5861 /* Reset HBA FCF states after successful unregister FCF */
5862 phba->fcf.fcf_flag = 0;
5863 phba->fcf.current_rec.flag = 0;
5866 * If driver is not unloading, check if there is any other
5867 * FCF record that can be used for discovery.
5869 if ((phba->pport->load_flag & FC_UNLOADING) ||
5870 (phba->link_state < LPFC_LINK_UP))
5873 /* This is considered as the initial FCF discovery scan */
5874 spin_lock_irq(&phba->hbalock);
5875 phba->fcf.fcf_flag |= FCF_INIT_DISC;
5876 spin_unlock_irq(&phba->hbalock);
5878 /* Reset FCF roundrobin bmask for new discovery */
5879 lpfc_sli4_clear_fcf_rr_bmask(phba);
5881 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5884 spin_lock_irq(&phba->hbalock);
5885 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
5886 spin_unlock_irq(&phba->hbalock);
5887 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5888 "2553 lpfc_unregister_unused_fcf failed "
5889 "to read FCF record HBA state x%x\n",
5890 phba->pport->port_state);
5895 * lpfc_unregister_fcf - Unregister the currently registered fcf record
5896 * @phba: Pointer to hba context object.
5898 * This function just unregisters the currently reigstered FCF. It does not
5899 * try to find another FCF for discovery.
5902 lpfc_unregister_fcf(struct lpfc_hba *phba)
5906 /* Preparation for unregistering fcf */
5907 rc = lpfc_unregister_fcf_prep(phba);
5909 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
5910 "2749 Failed to prepare for unregistering "
5911 "HBA's FCF record: rc=%d\n", rc);
5915 /* Now, unregister FCF record and reset HBA FCF state */
5916 rc = lpfc_sli4_unregister_fcf(phba);
5919 /* Set proper HBA FCF states after successful unregister FCF */
5920 spin_lock_irq(&phba->hbalock);
5921 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
5922 spin_unlock_irq(&phba->hbalock);
5926 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
5927 * @phba: Pointer to hba context object.
5929 * This function check if there are any connected remote port for the FCF and
5930 * if all the devices are disconnected, this function unregister FCFI.
5931 * This function also tries to use another FCF for discovery.
5934 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
5937 * If HBA is not running in FIP mode, if HBA does not support
5938 * FCoE, if FCF discovery is ongoing, or if FCF has not been
5939 * registered, do nothing.
5941 spin_lock_irq(&phba->hbalock);
5942 if (!(phba->hba_flag & HBA_FCOE_MODE) ||
5943 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
5944 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
5945 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
5946 (phba->pport->port_state == LPFC_FLOGI)) {
5947 spin_unlock_irq(&phba->hbalock);
5950 spin_unlock_irq(&phba->hbalock);
5952 if (lpfc_fcf_inuse(phba))
5955 lpfc_unregister_fcf_rescan(phba);
5959 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
5960 * @phba: Pointer to hba context object.
5961 * @buff: Buffer containing the FCF connection table as in the config
5963 * This function create driver data structure for the FCF connection
5964 * record table read from config region 23.
5967 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
5970 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5971 struct lpfc_fcf_conn_hdr *conn_hdr;
5972 struct lpfc_fcf_conn_rec *conn_rec;
5973 uint32_t record_count;
5976 /* Free the current connect table */
5977 list_for_each_entry_safe(conn_entry, next_conn_entry,
5978 &phba->fcf_conn_rec_list, list) {
5979 list_del_init(&conn_entry->list);
5983 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
5984 record_count = conn_hdr->length * sizeof(uint32_t)/
5985 sizeof(struct lpfc_fcf_conn_rec);
5987 conn_rec = (struct lpfc_fcf_conn_rec *)
5988 (buff + sizeof(struct lpfc_fcf_conn_hdr));
5990 for (i = 0; i < record_count; i++) {
5991 if (!(conn_rec[i].flags & FCFCNCT_VALID))
5993 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
5996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5997 "2566 Failed to allocate connection"
6002 memcpy(&conn_entry->conn_rec, &conn_rec[i],
6003 sizeof(struct lpfc_fcf_conn_rec));
6004 conn_entry->conn_rec.vlan_tag =
6005 le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF;
6006 conn_entry->conn_rec.flags =
6007 le16_to_cpu(conn_entry->conn_rec.flags);
6008 list_add_tail(&conn_entry->list,
6009 &phba->fcf_conn_rec_list);
6014 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6015 * @phba: Pointer to hba context object.
6016 * @buff: Buffer containing the FCoE parameter data structure.
6018 * This function update driver data structure with config
6019 * parameters read from config region 23.
6022 lpfc_read_fcoe_param(struct lpfc_hba *phba,
6025 struct lpfc_fip_param_hdr *fcoe_param_hdr;
6026 struct lpfc_fcoe_params *fcoe_param;
6028 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
6030 fcoe_param = (struct lpfc_fcoe_params *)
6031 (buff + sizeof(struct lpfc_fip_param_hdr));
6033 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
6034 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
6037 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
6038 phba->valid_vlan = 1;
6039 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
6043 phba->fc_map[0] = fcoe_param->fc_map[0];
6044 phba->fc_map[1] = fcoe_param->fc_map[1];
6045 phba->fc_map[2] = fcoe_param->fc_map[2];
6050 * lpfc_get_rec_conf23 - Get a record type in config region data.
6051 * @buff: Buffer containing config region 23 data.
6052 * @size: Size of the data buffer.
6053 * @rec_type: Record type to be searched.
6055 * This function searches config region data to find the beginning
6056 * of the record specified by record_type. If record found, this
6057 * function return pointer to the record else return NULL.
6060 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
6062 uint32_t offset = 0, rec_length;
6064 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
6065 (size < sizeof(uint32_t)))
6068 rec_length = buff[offset + 1];
6071 * One TLV record has one word header and number of data words
6072 * specified in the rec_length field of the record header.
6074 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
6076 if (buff[offset] == rec_type)
6077 return &buff[offset];
6079 if (buff[offset] == LPFC_REGION23_LAST_REC)
6082 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
6083 rec_length = buff[offset + 1];
6089 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6090 * @phba: Pointer to lpfc_hba data structure.
6091 * @buff: Buffer containing config region 23 data.
6092 * @size: Size of the data buffer.
6094 * This function parses the FCoE config parameters in config region 23 and
6095 * populate driver data structure with the parameters.
6098 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
6102 uint32_t offset = 0, rec_length;
6106 * If data size is less than 2 words signature and version cannot be
6109 if (size < 2*sizeof(uint32_t))
6112 /* Check the region signature first */
6113 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
6114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6115 "2567 Config region 23 has bad signature\n");
6121 /* Check the data structure version */
6122 if (buff[offset] != LPFC_REGION23_VERSION) {
6123 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6124 "2568 Config region 23 has bad version\n");
6129 rec_length = buff[offset + 1];
6131 /* Read FCoE param record */
6132 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6133 size - offset, FCOE_PARAM_TYPE);
6135 lpfc_read_fcoe_param(phba, rec_ptr);
6137 /* Read FCF connection table */
6138 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6139 size - offset, FCOE_CONN_TBL_TYPE);
6141 lpfc_read_fcf_conn_tbl(phba, rec_ptr);