1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2007 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/pci.h>
24 #include <linux/kthread.h>
25 #include <linux/interrupt.h>
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_transport_fc.h>
33 #include "lpfc_disc.h"
35 #include "lpfc_scsi.h"
37 #include "lpfc_logmsg.h"
38 #include "lpfc_crtn.h"
39 #include "lpfc_vport.h"
40 #include "lpfc_debugfs.h"
42 /* AlpaArray for assignment of scsid for scan-down and bind_method */
43 static uint8_t lpfcAlpaArray[] = {
44 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
45 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
46 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
47 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
48 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
49 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
50 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
51 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
52 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
53 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
54 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
55 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
56 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
59 static void lpfc_disc_timeout_handler(struct lpfc_vport *);
62 lpfc_terminate_rport_io(struct fc_rport *rport)
64 struct lpfc_rport_data *rdata;
65 struct lpfc_nodelist * ndlp;
66 struct lpfc_hba *phba;
68 rdata = rport->dd_data;
72 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
73 printk(KERN_ERR "Cannot find remote node"
74 " to terminate I/O Data x%x\n",
79 phba = ndlp->vport->phba;
81 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
82 "rport terminate: sid:x%x did:x%x flg:x%x",
83 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
85 if (ndlp->nlp_sid != NLP_NO_SID) {
86 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
87 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
94 * This function will be called when dev_loss_tmo fire.
97 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
99 struct lpfc_rport_data *rdata;
100 struct lpfc_nodelist * ndlp;
101 struct lpfc_vport *vport;
102 struct lpfc_hba *phba;
103 struct completion devloss_compl;
104 struct lpfc_work_evt *evtp;
106 rdata = rport->dd_data;
110 if (rport->scsi_target_id != -1) {
111 printk(KERN_ERR "Cannot find remote node"
112 " for rport in dev_loss_tmo_callbk x%x\n",
121 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
122 "rport devlosscb: sid:x%x did:x%x flg:x%x",
123 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
125 init_completion(&devloss_compl);
126 evtp = &ndlp->dev_loss_evt;
128 if (!list_empty(&evtp->evt_listp))
131 spin_lock_irq(&phba->hbalock);
132 evtp->evt_arg1 = ndlp;
133 evtp->evt_arg2 = &devloss_compl;
134 evtp->evt = LPFC_EVT_DEV_LOSS;
135 list_add_tail(&evtp->evt_listp, &phba->work_list);
137 wake_up(phba->work_wait);
139 spin_unlock_irq(&phba->hbalock);
141 wait_for_completion(&devloss_compl);
147 * This function is called from the worker thread when dev_loss_tmo
151 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
153 struct lpfc_rport_data *rdata;
154 struct fc_rport *rport;
155 struct lpfc_vport *vport;
156 struct lpfc_hba *phba;
165 rdata = rport->dd_data;
166 name = (uint8_t *) &ndlp->nlp_portname;
170 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
171 "rport devlosstmo:did:x%x type:x%x id:x%x",
172 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
174 if (!(vport->load_flag & FC_UNLOADING) &&
175 ndlp->nlp_state == NLP_STE_MAPPED_NODE)
178 if (ndlp->nlp_type & NLP_FABRIC) {
182 /* We will clean up these Nodes in linkup */
183 put_node = rdata->pnode != NULL;
184 put_rport = ndlp->rport != NULL;
190 put_device(&rport->dev);
194 if (ndlp->nlp_sid != NLP_NO_SID) {
196 /* flush the target */
197 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
198 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
200 if (vport->load_flag & FC_UNLOADING)
204 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
205 "%d (%d):0203 Devloss timeout on "
206 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
207 "NPort x%x Data: x%x x%x x%x\n",
208 phba->brd_no, vport->vpi,
209 *name, *(name+1), *(name+2), *(name+3),
210 *(name+4), *(name+5), *(name+6), *(name+7),
211 ndlp->nlp_DID, ndlp->nlp_flag,
212 ndlp->nlp_state, ndlp->nlp_rpi);
214 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
215 "%d (%d):0204 Devloss timeout on "
216 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
217 "NPort x%x Data: x%x x%x x%x\n",
218 phba->brd_no, vport->vpi,
219 *name, *(name+1), *(name+2), *(name+3),
220 *(name+4), *(name+5), *(name+6), *(name+7),
221 ndlp->nlp_DID, ndlp->nlp_flag,
222 ndlp->nlp_state, ndlp->nlp_rpi);
225 if (!(vport->load_flag & FC_UNLOADING) &&
226 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
227 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
228 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE))
229 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
234 put_node = rdata->pnode != NULL;
235 put_rport = ndlp->rport != NULL;
241 put_device(&rport->dev);
247 lpfc_worker_wake_up(struct lpfc_hba *phba)
249 wake_up(phba->work_wait);
254 lpfc_work_list_done(struct lpfc_hba *phba)
256 struct lpfc_work_evt *evtp = NULL;
257 struct lpfc_nodelist *ndlp;
258 struct lpfc_vport *vport;
261 spin_lock_irq(&phba->hbalock);
262 while (!list_empty(&phba->work_list)) {
263 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
265 spin_unlock_irq(&phba->hbalock);
268 case LPFC_EVT_DEV_LOSS_DELAY:
269 free_evt = 0; /* evt is part of ndlp */
270 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
275 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
276 "rport devlossdly:did:x%x flg:x%x",
277 ndlp->nlp_DID, ndlp->nlp_flag, 0);
279 if (!(vport->load_flag & FC_UNLOADING) &&
280 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
281 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
282 lpfc_disc_state_machine(vport, ndlp, NULL,
286 case LPFC_EVT_ELS_RETRY:
287 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
288 lpfc_els_retry_delay_handler(ndlp);
289 free_evt = 0; /* evt is part of ndlp */
291 case LPFC_EVT_DEV_LOSS:
292 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
294 lpfc_dev_loss_tmo_handler(ndlp);
296 complete((struct completion *)(evtp->evt_arg2));
299 case LPFC_EVT_ONLINE:
300 if (phba->link_state < LPFC_LINK_DOWN)
301 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
303 *(int *) (evtp->evt_arg1) = 0;
304 complete((struct completion *)(evtp->evt_arg2));
306 case LPFC_EVT_OFFLINE_PREP:
307 if (phba->link_state >= LPFC_LINK_DOWN)
308 lpfc_offline_prep(phba);
309 *(int *)(evtp->evt_arg1) = 0;
310 complete((struct completion *)(evtp->evt_arg2));
312 case LPFC_EVT_OFFLINE:
314 lpfc_sli_brdrestart(phba);
315 *(int *)(evtp->evt_arg1) =
316 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
317 lpfc_unblock_mgmt_io(phba);
318 complete((struct completion *)(evtp->evt_arg2));
320 case LPFC_EVT_WARM_START:
322 lpfc_reset_barrier(phba);
323 lpfc_sli_brdreset(phba);
324 lpfc_hba_down_post(phba);
325 *(int *)(evtp->evt_arg1) =
326 lpfc_sli_brdready(phba, HS_MBRDY);
327 lpfc_unblock_mgmt_io(phba);
328 complete((struct completion *)(evtp->evt_arg2));
332 *(int *)(evtp->evt_arg1)
333 = (phba->pport->stopped)
334 ? 0 : lpfc_sli_brdkill(phba);
335 lpfc_unblock_mgmt_io(phba);
336 complete((struct completion *)(evtp->evt_arg2));
341 spin_lock_irq(&phba->hbalock);
343 spin_unlock_irq(&phba->hbalock);
348 lpfc_work_done(struct lpfc_hba *phba)
350 struct lpfc_sli_ring *pring;
351 uint32_t ha_copy, status, control, work_port_events;
352 struct lpfc_vport *vport;
354 spin_lock_irq(&phba->hbalock);
355 ha_copy = phba->work_ha;
357 spin_unlock_irq(&phba->hbalock);
359 if (ha_copy & HA_ERATT)
360 lpfc_handle_eratt(phba);
362 if (ha_copy & HA_MBATT)
363 lpfc_sli_handle_mb_event(phba);
365 if (ha_copy & HA_LATT)
366 lpfc_handle_latt(phba);
368 spin_lock_irq(&phba->hbalock);
369 list_for_each_entry(vport, &phba->port_list, listentry) {
370 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
372 if (!scsi_host_get(shost)) {
375 spin_unlock_irq(&phba->hbalock);
376 work_port_events = vport->work_port_events;
378 if (work_port_events & WORKER_DISC_TMO)
379 lpfc_disc_timeout_handler(vport);
381 if (work_port_events & WORKER_ELS_TMO)
382 lpfc_els_timeout_handler(vport);
384 if (work_port_events & WORKER_HB_TMO)
385 lpfc_hb_timeout_handler(phba);
387 if (work_port_events & WORKER_MBOX_TMO)
388 lpfc_mbox_timeout_handler(phba);
390 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
391 lpfc_unblock_fabric_iocbs(phba);
393 if (work_port_events & WORKER_FDMI_TMO)
394 lpfc_fdmi_timeout_handler(vport);
396 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
397 lpfc_ramp_down_queue_handler(phba);
399 if (work_port_events & WORKER_RAMP_UP_QUEUE)
400 lpfc_ramp_up_queue_handler(phba);
402 spin_lock_irq(&vport->work_port_lock);
403 vport->work_port_events &= ~work_port_events;
404 spin_unlock_irq(&vport->work_port_lock);
405 scsi_host_put(shost);
406 spin_lock_irq(&phba->hbalock);
408 spin_unlock_irq(&phba->hbalock);
410 pring = &phba->sli.ring[LPFC_ELS_RING];
411 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
412 status >>= (4*LPFC_ELS_RING);
413 if ((status & HA_RXMASK)
414 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
415 if (pring->flag & LPFC_STOP_IOCB_MASK) {
416 pring->flag |= LPFC_DEFERRED_RING_EVENT;
418 lpfc_sli_handle_slow_ring_event(phba, pring,
421 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
424 * Turn on Ring interrupts
426 spin_lock_irq(&phba->hbalock);
427 control = readl(phba->HCregaddr);
428 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
429 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
430 writel(control, phba->HCregaddr);
431 readl(phba->HCregaddr); /* flush */
433 spin_unlock_irq(&phba->hbalock);
435 lpfc_work_list_done(phba);
439 check_work_wait_done(struct lpfc_hba *phba)
441 struct lpfc_vport *vport;
442 struct lpfc_sli_ring *pring;
445 spin_lock_irq(&phba->hbalock);
446 list_for_each_entry(vport, &phba->port_list, listentry) {
447 if (vport->work_port_events) {
453 if (phba->work_ha || (!list_empty(&phba->work_list)) ||
454 kthread_should_stop()) {
459 pring = &phba->sli.ring[LPFC_ELS_RING];
460 if (pring->flag & LPFC_DEFERRED_RING_EVENT)
466 phba->work_found = 0;
468 spin_unlock_irq(&phba->hbalock);
474 lpfc_do_work(void *p)
476 struct lpfc_hba *phba = p;
478 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq);
480 set_user_nice(current, -20);
481 phba->work_wait = &work_waitq;
482 phba->work_found = 0;
486 rc = wait_event_interruptible(work_waitq,
487 check_work_wait_done(phba));
491 if (kthread_should_stop())
494 lpfc_work_done(phba);
496 /* If there is alot of slow ring work, like during link up
497 * check_work_wait_done() may cause this thread to not give
498 * up the CPU for very long periods of time. This may cause
499 * soft lockups or other problems. To avoid these situations
500 * give up the CPU here after LPFC_MAX_WORKER_ITERATION
501 * consecutive iterations.
503 if (phba->work_found >= LPFC_MAX_WORKER_ITERATION) {
504 phba->work_found = 0;
508 phba->work_wait = NULL;
513 * This is only called to handle FC worker events. Since this a rare
514 * occurance, we allocate a struct lpfc_work_evt structure here instead of
515 * embedding it in the IOCB.
518 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
521 struct lpfc_work_evt *evtp;
525 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
526 * be queued to worker thread for processing
528 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
532 evtp->evt_arg1 = arg1;
533 evtp->evt_arg2 = arg2;
536 spin_lock_irqsave(&phba->hbalock, flags);
537 list_add_tail(&evtp->evt_listp, &phba->work_list);
539 lpfc_worker_wake_up(phba);
540 spin_unlock_irqrestore(&phba->hbalock, flags);
546 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
548 struct lpfc_hba *phba = vport->phba;
549 struct lpfc_nodelist *ndlp, *next_ndlp;
552 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
553 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
556 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN)
557 lpfc_unreg_rpi(vport, ndlp);
559 /* Leave Fabric nodes alone on link down */
560 if (!remove && ndlp->nlp_type & NLP_FABRIC)
562 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
565 : NLP_EVT_DEVICE_RECOVERY);
567 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
568 lpfc_mbx_unreg_vpi(vport);
569 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
574 lpfc_linkdown_port(struct lpfc_vport *vport)
576 struct lpfc_nodelist *ndlp, *next_ndlp;
577 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
579 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
581 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
582 "Link Down: state:x%x rtry:x%x flg:x%x",
583 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
585 /* Cleanup any outstanding RSCN activity */
586 lpfc_els_flush_rscn(vport);
588 /* Cleanup any outstanding ELS commands */
589 lpfc_els_flush_cmd(vport);
591 lpfc_cleanup_rpis(vport, 0);
593 /* free any ndlp's on unused list */
594 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp)
595 /* free any ndlp's in unused state */
596 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
597 lpfc_drop_node(vport, ndlp);
599 /* Turn off discovery timer if its running */
600 lpfc_can_disctmo(vport);
604 lpfc_linkdown(struct lpfc_hba *phba)
606 struct lpfc_vport *vport = phba->pport;
607 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
608 struct lpfc_vport *port_iterator;
611 if (phba->link_state == LPFC_LINK_DOWN) {
614 spin_lock_irq(&phba->hbalock);
615 if (phba->link_state > LPFC_LINK_DOWN) {
616 phba->link_state = LPFC_LINK_DOWN;
617 phba->pport->fc_flag &= ~FC_LBIT;
619 spin_unlock_irq(&phba->hbalock);
621 list_for_each_entry(port_iterator, &phba->port_list, listentry) {
623 /* Issue a LINK DOWN event to all nodes */
624 lpfc_linkdown_port(port_iterator);
627 /* Clean up any firmware default rpi's */
628 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
630 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
632 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
633 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
634 == MBX_NOT_FINISHED) {
635 mempool_free(mb, phba->mbox_mem_pool);
639 /* Setup myDID for link up if we are in pt2pt mode */
640 if (phba->pport->fc_flag & FC_PT2PT) {
641 phba->pport->fc_myDID = 0;
642 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
644 lpfc_config_link(phba, mb);
645 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
647 if (lpfc_sli_issue_mbox(phba, mb,
648 (MBX_NOWAIT | MBX_STOP_IOCB))
649 == MBX_NOT_FINISHED) {
650 mempool_free(mb, phba->mbox_mem_pool);
653 spin_lock_irq(shost->host_lock);
654 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
655 spin_unlock_irq(shost->host_lock);
662 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
664 struct lpfc_nodelist *ndlp;
666 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
667 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
670 if (ndlp->nlp_type & NLP_FABRIC) {
671 /* On Linkup its safe to clean up the ndlp
672 * from Fabric connections.
674 if (ndlp->nlp_DID != Fabric_DID)
675 lpfc_unreg_rpi(vport, ndlp);
676 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
677 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
678 /* Fail outstanding IO now since device is
681 lpfc_unreg_rpi(vport, ndlp);
687 lpfc_linkup_port(struct lpfc_vport *vport)
689 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
690 struct lpfc_nodelist *ndlp, *next_ndlp;
691 struct lpfc_hba *phba = vport->phba;
693 if ((vport->load_flag & FC_UNLOADING) != 0)
696 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
697 "Link Up: top:x%x speed:x%x flg:x%x",
698 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
700 /* If NPIV is not enabled, only bring the physical port up */
701 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
702 (vport != phba->pport))
705 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
707 spin_lock_irq(shost->host_lock);
708 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
709 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
710 vport->fc_flag |= FC_NDISC_ACTIVE;
711 vport->fc_ns_retry = 0;
712 spin_unlock_irq(shost->host_lock);
714 if (vport->fc_flag & FC_LBIT)
715 lpfc_linkup_cleanup_nodes(vport);
717 /* free any ndlp's in unused state */
718 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
720 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
721 lpfc_drop_node(vport, ndlp);
725 lpfc_linkup(struct lpfc_hba *phba)
727 struct lpfc_vport *vport;
729 phba->link_state = LPFC_LINK_UP;
731 /* Unblock fabric iocbs if they are blocked */
732 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
733 del_timer_sync(&phba->fabric_block_timer);
735 list_for_each_entry(vport, &phba->port_list, listentry) {
736 lpfc_linkup_port(vport);
738 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
739 lpfc_issue_clear_la(phba, phba->pport);
745 * This routine handles processing a CLEAR_LA mailbox
746 * command upon completion. It is setup in the LPFC_MBOXQ
747 * as the completion routine when the command is
748 * handed off to the SLI layer.
751 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
753 struct lpfc_vport *vport = pmb->vport;
754 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
755 struct lpfc_sli *psli = &phba->sli;
756 MAILBOX_t *mb = &pmb->mb;
759 /* Since we don't do discovery right now, turn these off here */
760 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
761 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
762 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
764 /* Check for error */
765 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
766 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
767 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
768 "%d (%d):0320 CLEAR_LA mbxStatus error x%x hba "
770 phba->brd_no, vport->vpi, mb->mbxStatus,
773 phba->link_state = LPFC_HBA_ERROR;
777 if (vport->port_type == LPFC_PHYSICAL_PORT)
778 phba->link_state = LPFC_HBA_READY;
780 spin_lock_irq(&phba->hbalock);
781 psli->sli_flag |= LPFC_PROCESS_LA;
782 control = readl(phba->HCregaddr);
783 control |= HC_LAINT_ENA;
784 writel(control, phba->HCregaddr);
785 readl(phba->HCregaddr); /* flush */
786 spin_unlock_irq(&phba->hbalock);
789 vport->num_disc_nodes = 0;
790 /* go thru NPR nodes and issue ELS PLOGIs */
791 if (vport->fc_npr_cnt)
792 lpfc_els_disc_plogi(vport);
794 if (!vport->num_disc_nodes) {
795 spin_lock_irq(shost->host_lock);
796 vport->fc_flag &= ~FC_NDISC_ACTIVE;
797 spin_unlock_irq(shost->host_lock);
800 vport->port_state = LPFC_VPORT_READY;
803 /* Device Discovery completes */
804 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
805 "%d (%d):0225 Device Discovery completes\n",
806 phba->brd_no, vport->vpi);
808 mempool_free(pmb, phba->mbox_mem_pool);
810 spin_lock_irq(shost->host_lock);
811 vport->fc_flag &= ~(FC_ABORT_DISCOVERY | FC_ESTABLISH_LINK);
812 spin_unlock_irq(shost->host_lock);
814 del_timer_sync(&phba->fc_estabtmo);
816 lpfc_can_disctmo(vport);
818 /* turn on Link Attention interrupts */
820 spin_lock_irq(&phba->hbalock);
821 psli->sli_flag |= LPFC_PROCESS_LA;
822 control = readl(phba->HCregaddr);
823 control |= HC_LAINT_ENA;
824 writel(control, phba->HCregaddr);
825 readl(phba->HCregaddr); /* flush */
826 spin_unlock_irq(&phba->hbalock);
833 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
835 struct lpfc_vport *vport = pmb->vport;
837 if (pmb->mb.mbxStatus)
840 mempool_free(pmb, phba->mbox_mem_pool);
842 if (phba->fc_topology == TOPOLOGY_LOOP &&
843 vport->fc_flag & FC_PUBLIC_LOOP &&
844 !(vport->fc_flag & FC_LBIT)) {
845 /* Need to wait for FAN - use discovery timer
846 * for timeout. port_state is identically
847 * LPFC_LOCAL_CFG_LINK while waiting for FAN
849 lpfc_set_disctmo(vport);
853 /* Start discovery by sending a FLOGI. port_state is identically
854 * LPFC_FLOGI while waiting for FLOGI cmpl
856 if (vport->port_state != LPFC_FLOGI) {
857 vport->port_state = LPFC_FLOGI;
858 lpfc_set_disctmo(vport);
859 lpfc_initial_flogi(vport);
864 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
865 "%d (%d):0306 CONFIG_LINK mbxStatus error x%x "
867 phba->brd_no, vport->vpi, pmb->mb.mbxStatus,
870 mempool_free(pmb, phba->mbox_mem_pool);
874 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
875 "%d (%d):0200 CONFIG_LINK bad hba state x%x\n",
876 phba->brd_no, vport->vpi, vport->port_state);
878 lpfc_issue_clear_la(phba, vport);
883 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
885 MAILBOX_t *mb = &pmb->mb;
886 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
887 struct lpfc_vport *vport = pmb->vport;
890 /* Check for error */
892 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
893 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
894 "%d (%d):0319 READ_SPARAM mbxStatus error x%x "
896 phba->brd_no, vport->vpi, mb->mbxStatus,
903 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
904 sizeof (struct serv_parm));
905 if (phba->cfg_soft_wwnn)
906 u64_to_wwn(phba->cfg_soft_wwnn,
907 vport->fc_sparam.nodeName.u.wwn);
908 if (phba->cfg_soft_wwpn)
909 u64_to_wwn(phba->cfg_soft_wwpn,
910 vport->fc_sparam.portName.u.wwn);
911 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
912 sizeof(vport->fc_nodename));
913 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
914 sizeof(vport->fc_portname));
915 if (vport->port_type == LPFC_PHYSICAL_PORT) {
916 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
917 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
920 lpfc_mbuf_free(phba, mp->virt, mp->phys);
922 mempool_free(pmb, phba->mbox_mem_pool);
926 pmb->context1 = NULL;
927 lpfc_mbuf_free(phba, mp->virt, mp->phys);
929 lpfc_issue_clear_la(phba, vport);
930 mempool_free(pmb, phba->mbox_mem_pool);
935 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
937 struct lpfc_vport *vport = phba->pport;
938 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
940 struct lpfc_dmabuf *mp;
943 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
944 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
946 spin_lock_irq(&phba->hbalock);
947 switch (la->UlnkSpeed) {
949 phba->fc_linkspeed = LA_1GHZ_LINK;
952 phba->fc_linkspeed = LA_2GHZ_LINK;
955 phba->fc_linkspeed = LA_4GHZ_LINK;
958 phba->fc_linkspeed = LA_8GHZ_LINK;
961 phba->fc_linkspeed = LA_UNKNW_LINK;
965 phba->fc_topology = la->topology;
966 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
968 if (phba->fc_topology == TOPOLOGY_LOOP) {
969 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
971 /* Get Loop Map information */
973 vport->fc_flag |= FC_LBIT;
975 vport->fc_myDID = la->granted_AL_PA;
976 i = la->un.lilpBde64.tus.f.bdeSize;
979 phba->alpa_map[0] = 0;
981 if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
992 numalpa = phba->alpa_map[0];
994 while (j < numalpa) {
995 memset(un.pamap, 0, 16);
996 for (k = 1; j < numalpa; k++) {
998 phba->alpa_map[j + 1];
1003 /* Link Up Event ALPA map */
1004 lpfc_printf_log(phba,
1007 "%d:1304 Link Up Event "
1008 "ALPA map Data: x%x "
1011 un.pa.wd1, un.pa.wd2,
1012 un.pa.wd3, un.pa.wd4);
1017 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
1018 if (phba->max_vpi && phba->cfg_npiv_enable &&
1019 (phba->sli_rev == 3))
1020 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
1022 vport->fc_myDID = phba->fc_pref_DID;
1023 vport->fc_flag |= FC_LBIT;
1025 spin_unlock_irq(&phba->hbalock);
1029 lpfc_read_sparam(phba, sparam_mbox, 0);
1030 sparam_mbox->vport = vport;
1031 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
1032 rc = lpfc_sli_issue_mbox(phba, sparam_mbox,
1033 (MBX_NOWAIT | MBX_STOP_IOCB));
1034 if (rc == MBX_NOT_FINISHED) {
1035 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
1036 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1038 mempool_free(sparam_mbox, phba->mbox_mem_pool);
1040 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
1046 vport->port_state = LPFC_LOCAL_CFG_LINK;
1047 lpfc_config_link(phba, cfglink_mbox);
1048 cfglink_mbox->vport = vport;
1049 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
1050 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox,
1051 (MBX_NOWAIT | MBX_STOP_IOCB));
1052 if (rc != MBX_NOT_FINISHED)
1054 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
1057 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1058 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1059 "%d (%d):0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
1060 phba->brd_no, vport->vpi,
1061 vport->port_state, sparam_mbox, cfglink_mbox);
1063 lpfc_issue_clear_la(phba, vport);
1068 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
1071 struct lpfc_sli *psli = &phba->sli;
1073 lpfc_linkdown(phba);
1075 /* turn on Link Attention interrupts - no CLEAR_LA needed */
1076 spin_lock_irq(&phba->hbalock);
1077 psli->sli_flag |= LPFC_PROCESS_LA;
1078 control = readl(phba->HCregaddr);
1079 control |= HC_LAINT_ENA;
1080 writel(control, phba->HCregaddr);
1081 readl(phba->HCregaddr); /* flush */
1082 spin_unlock_irq(&phba->hbalock);
1086 * This routine handles processing a READ_LA mailbox
1087 * command upon completion. It is setup in the LPFC_MBOXQ
1088 * as the completion routine when the command is
1089 * handed off to the SLI layer.
1092 lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1094 struct lpfc_vport *vport = pmb->vport;
1095 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1097 MAILBOX_t *mb = &pmb->mb;
1098 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1100 /* Check for error */
1101 if (mb->mbxStatus) {
1102 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1103 "%d:1307 READ_LA mbox error x%x state x%x\n",
1104 phba->brd_no, mb->mbxStatus, vport->port_state);
1105 lpfc_mbx_issue_link_down(phba);
1106 phba->link_state = LPFC_HBA_ERROR;
1107 goto lpfc_mbx_cmpl_read_la_free_mbuf;
1110 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
1112 memcpy(&phba->alpa_map[0], mp->virt, 128);
1114 spin_lock_irq(shost->host_lock);
1116 vport->fc_flag |= FC_BYPASSED_MODE;
1118 vport->fc_flag &= ~FC_BYPASSED_MODE;
1119 spin_unlock_irq(shost->host_lock);
1121 if (((phba->fc_eventTag + 1) < la->eventTag) ||
1122 (phba->fc_eventTag == la->eventTag)) {
1123 phba->fc_stat.LinkMultiEvent++;
1124 if (la->attType == AT_LINK_UP)
1125 if (phba->fc_eventTag != 0)
1126 lpfc_linkdown(phba);
1129 phba->fc_eventTag = la->eventTag;
1131 if (la->attType == AT_LINK_UP) {
1132 phba->fc_stat.LinkUp++;
1133 if (phba->link_flag & LS_LOOPBACK_MODE) {
1134 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1135 "%d:1306 Link Up Event in loop back mode "
1136 "x%x received Data: x%x x%x x%x x%x\n",
1137 phba->brd_no, la->eventTag, phba->fc_eventTag,
1138 la->granted_AL_PA, la->UlnkSpeed,
1141 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1142 "%d:1303 Link Up Event x%x received "
1143 "Data: x%x x%x x%x x%x\n",
1144 phba->brd_no, la->eventTag, phba->fc_eventTag,
1145 la->granted_AL_PA, la->UlnkSpeed,
1148 lpfc_mbx_process_link_up(phba, la);
1150 phba->fc_stat.LinkDown++;
1151 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1152 "%d:1305 Link Down Event x%x received "
1153 "Data: x%x x%x x%x\n",
1154 phba->brd_no, la->eventTag, phba->fc_eventTag,
1155 phba->pport->port_state, vport->fc_flag);
1156 lpfc_mbx_issue_link_down(phba);
1159 lpfc_mbx_cmpl_read_la_free_mbuf:
1160 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1162 mempool_free(pmb, phba->mbox_mem_pool);
1167 * This routine handles processing a REG_LOGIN mailbox
1168 * command upon completion. It is setup in the LPFC_MBOXQ
1169 * as the completion routine when the command is
1170 * handed off to the SLI layer.
1173 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1175 struct lpfc_vport *vport = pmb->vport;
1176 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1177 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
1179 pmb->context1 = NULL;
1181 /* Good status, call state machine */
1182 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
1183 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1185 mempool_free(pmb, phba->mbox_mem_pool);
1192 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1194 MAILBOX_t *mb = &pmb->mb;
1195 struct lpfc_vport *vport = pmb->vport;
1196 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1198 switch (mb->mbxStatus) {
1202 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1203 "%d (%d):0911 cmpl_unreg_vpi, "
1204 "mb status = 0x%x\n",
1205 phba->brd_no, vport->vpi, mb->mbxStatus);
1208 vport->unreg_vpi_cmpl = VPORT_OK;
1209 mempool_free(pmb, phba->mbox_mem_pool);
1211 * This shost reference might have been taken at the beginning of
1212 * lpfc_vport_delete()
1214 if (vport->load_flag & FC_UNLOADING)
1215 scsi_host_put(shost);
1219 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
1221 struct lpfc_hba *phba = vport->phba;
1225 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1229 lpfc_unreg_vpi(phba, vport->vpi, mbox);
1230 mbox->vport = vport;
1231 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
1232 rc = lpfc_sli_issue_mbox(phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1233 if (rc == MBX_NOT_FINISHED) {
1234 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT,
1235 "%d (%d):1800 Could not issue unreg_vpi\n",
1236 phba->brd_no, vport->vpi);
1237 mempool_free(mbox, phba->mbox_mem_pool);
1238 vport->unreg_vpi_cmpl = VPORT_ERROR;
1243 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1245 struct lpfc_vport *vport = pmb->vport;
1246 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1247 MAILBOX_t *mb = &pmb->mb;
1249 switch (mb->mbxStatus) {
1253 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1254 "%d (%d):0912 cmpl_reg_vpi, mb status = 0x%x\n",
1255 phba->brd_no, vport->vpi, mb->mbxStatus);
1256 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1257 spin_lock_irq(shost->host_lock);
1258 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1259 spin_unlock_irq(shost->host_lock);
1260 vport->fc_myDID = 0;
1264 vport->num_disc_nodes = 0;
1265 /* go thru NPR list and issue ELS PLOGIs */
1266 if (vport->fc_npr_cnt)
1267 lpfc_els_disc_plogi(vport);
1269 if (!vport->num_disc_nodes) {
1270 spin_lock_irq(shost->host_lock);
1271 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1272 spin_unlock_irq(shost->host_lock);
1273 lpfc_can_disctmo(vport);
1275 vport->port_state = LPFC_VPORT_READY;
1278 mempool_free(pmb, phba->mbox_mem_pool);
1283 * This routine handles processing a Fabric REG_LOGIN mailbox
1284 * command upon completion. It is setup in the LPFC_MBOXQ
1285 * as the completion routine when the command is
1286 * handed off to the SLI layer.
1289 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1291 struct lpfc_vport *vport = pmb->vport;
1292 struct lpfc_vport *next_vport;
1293 MAILBOX_t *mb = &pmb->mb;
1294 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1295 struct lpfc_nodelist *ndlp;
1296 ndlp = (struct lpfc_nodelist *) pmb->context2;
1298 pmb->context1 = NULL;
1299 pmb->context2 = NULL;
1301 if (mb->mbxStatus) {
1302 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1304 mempool_free(pmb, phba->mbox_mem_pool);
1307 if (phba->fc_topology == TOPOLOGY_LOOP) {
1308 /* FLOGI failed, use loop map to make discovery list */
1309 lpfc_disc_list_loopmap(vport);
1311 /* Start discovery */
1312 lpfc_disc_start(vport);
1316 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1317 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1318 "%d (%d):0258 Register Fabric login error: 0x%x\n",
1319 phba->brd_no, vport->vpi, mb->mbxStatus);
1324 ndlp->nlp_rpi = mb->un.varWords[0];
1325 ndlp->nlp_type |= NLP_FABRIC;
1326 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1328 lpfc_nlp_put(ndlp); /* Drop the reference from the mbox */
1330 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
1331 list_for_each_entry(next_vport, &phba->port_list, listentry) {
1332 if (next_vport->port_type == LPFC_PHYSICAL_PORT)
1335 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
1336 lpfc_initial_fdisc(next_vport);
1337 else if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
1338 lpfc_vport_set_state(vport,
1339 FC_VPORT_NO_FABRIC_SUPP);
1340 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
1341 "%d (%d):0259 No NPIV Fabric "
1343 phba->brd_no, vport->vpi);
1346 lpfc_do_scr_ns_plogi(phba, vport);
1349 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1351 mempool_free(pmb, phba->mbox_mem_pool);
1356 * This routine handles processing a NameServer REG_LOGIN mailbox
1357 * command upon completion. It is setup in the LPFC_MBOXQ
1358 * as the completion routine when the command is
1359 * handed off to the SLI layer.
1362 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1364 MAILBOX_t *mb = &pmb->mb;
1365 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1366 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
1367 struct lpfc_vport *vport = pmb->vport;
1369 if (mb->mbxStatus) {
1372 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1374 mempool_free(pmb, phba->mbox_mem_pool);
1375 lpfc_drop_node(vport, ndlp);
1377 if (phba->fc_topology == TOPOLOGY_LOOP) {
1379 * RegLogin failed, use loop map to make discovery
1382 lpfc_disc_list_loopmap(vport);
1384 /* Start discovery */
1385 lpfc_disc_start(vport);
1388 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1389 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
1390 "%d (%d):0260 Register NameServer error: 0x%x\n",
1391 phba->brd_no, vport->vpi, mb->mbxStatus);
1395 pmb->context1 = NULL;
1397 ndlp->nlp_rpi = mb->un.varWords[0];
1398 ndlp->nlp_type |= NLP_FABRIC;
1399 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1401 if (vport->port_state < LPFC_VPORT_READY) {
1402 /* Link up discovery requires Fabric registration. */
1403 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
1404 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
1405 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
1406 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
1407 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
1409 /* Issue SCR just before NameServer GID_FT Query */
1410 lpfc_issue_els_scr(vport, SCR_DID, 0);
1413 vport->fc_ns_retry = 0;
1414 /* Good status, issue CT Request to NameServer */
1415 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
1416 /* Cannot issue NameServer Query, so finish up discovery */
1421 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1423 mempool_free(pmb, phba->mbox_mem_pool);
1429 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1431 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1432 struct fc_rport *rport;
1433 struct lpfc_rport_data *rdata;
1434 struct fc_rport_identifiers rport_ids;
1435 struct lpfc_hba *phba = vport->phba;
1437 /* Remote port has reappeared. Re-register w/ FC transport */
1438 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1439 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1440 rport_ids.port_id = ndlp->nlp_DID;
1441 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1444 * We leave our node pointer in rport->dd_data when we unregister a
1445 * FCP target port. But fc_remote_port_add zeros the space to which
1446 * rport->dd_data points. So, if we're reusing a previously
1447 * registered port, drop the reference that we took the last time we
1448 * registered the port.
1450 if (ndlp->rport && ndlp->rport->dd_data &&
1451 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp) {
1455 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
1456 "rport add: did:x%x flg:x%x type x%x",
1457 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1459 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
1460 if (!rport || !get_device(&rport->dev)) {
1461 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1462 "Warning: fc_remote_port_add failed\n");
1466 /* initialize static port data */
1467 rport->maxframe_size = ndlp->nlp_maxframe;
1468 rport->supported_classes = ndlp->nlp_class_sup;
1469 rdata = rport->dd_data;
1470 rdata->pnode = lpfc_nlp_get(ndlp);
1472 if (ndlp->nlp_type & NLP_FCP_TARGET)
1473 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1474 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1475 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1478 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1479 fc_remote_port_rolechg(rport, rport_ids.roles);
1481 if ((rport->scsi_target_id != -1) &&
1482 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
1483 ndlp->nlp_sid = rport->scsi_target_id;
1489 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
1491 struct fc_rport *rport = ndlp->rport;
1493 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
1494 "rport delete: did:x%x flg:x%x type x%x",
1495 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1497 fc_remote_port_delete(rport);
1503 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
1505 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1507 spin_lock_irq(shost->host_lock);
1509 case NLP_STE_UNUSED_NODE:
1510 vport->fc_unused_cnt += count;
1512 case NLP_STE_PLOGI_ISSUE:
1513 vport->fc_plogi_cnt += count;
1515 case NLP_STE_ADISC_ISSUE:
1516 vport->fc_adisc_cnt += count;
1518 case NLP_STE_REG_LOGIN_ISSUE:
1519 vport->fc_reglogin_cnt += count;
1521 case NLP_STE_PRLI_ISSUE:
1522 vport->fc_prli_cnt += count;
1524 case NLP_STE_UNMAPPED_NODE:
1525 vport->fc_unmap_cnt += count;
1527 case NLP_STE_MAPPED_NODE:
1528 vport->fc_map_cnt += count;
1530 case NLP_STE_NPR_NODE:
1531 vport->fc_npr_cnt += count;
1534 spin_unlock_irq(shost->host_lock);
1538 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1539 int old_state, int new_state)
1541 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1543 if (new_state == NLP_STE_UNMAPPED_NODE) {
1544 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1545 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1546 ndlp->nlp_type |= NLP_FC_NODE;
1548 if (new_state == NLP_STE_MAPPED_NODE)
1549 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1550 if (new_state == NLP_STE_NPR_NODE)
1551 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
1553 /* Transport interface */
1554 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
1555 old_state == NLP_STE_UNMAPPED_NODE)) {
1556 vport->phba->nport_event_cnt++;
1557 lpfc_unregister_remote_port(ndlp);
1560 if (new_state == NLP_STE_MAPPED_NODE ||
1561 new_state == NLP_STE_UNMAPPED_NODE) {
1562 vport->phba->nport_event_cnt++;
1564 * Tell the fc transport about the port, if we haven't
1565 * already. If we have, and it's a scsi entity, be
1566 * sure to unblock any attached scsi devices
1568 lpfc_register_remote_port(vport, ndlp);
1571 * if we added to Mapped list, but the remote port
1572 * registration failed or assigned a target id outside
1573 * our presentable range - move the node to the
1576 if (new_state == NLP_STE_MAPPED_NODE &&
1578 ndlp->rport->scsi_target_id == -1 ||
1579 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
1580 spin_lock_irq(shost->host_lock);
1581 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1582 spin_unlock_irq(shost->host_lock);
1583 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1588 lpfc_nlp_state_name(char *buffer, size_t size, int state)
1590 static char *states[] = {
1591 [NLP_STE_UNUSED_NODE] = "UNUSED",
1592 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
1593 [NLP_STE_ADISC_ISSUE] = "ADISC",
1594 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
1595 [NLP_STE_PRLI_ISSUE] = "PRLI",
1596 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
1597 [NLP_STE_MAPPED_NODE] = "MAPPED",
1598 [NLP_STE_NPR_NODE] = "NPR",
1601 if (state < ARRAY_SIZE(states) && states[state])
1602 strlcpy(buffer, states[state], size);
1604 snprintf(buffer, size, "unknown (%d)", state);
1609 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1612 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1613 int old_state = ndlp->nlp_state;
1614 char name1[16], name2[16];
1616 lpfc_printf_log(vport->phba, KERN_INFO, LOG_NODE,
1617 "%d (%d):0904 NPort state transition x%06x, %s -> %s\n",
1618 vport->phba->brd_no, vport->vpi,
1620 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
1621 lpfc_nlp_state_name(name2, sizeof(name2), state));
1623 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
1624 "node statechg did:x%x old:%d ste:%d",
1625 ndlp->nlp_DID, old_state, state);
1627 if (old_state == NLP_STE_NPR_NODE &&
1628 (ndlp->nlp_flag & NLP_DELAY_TMO) != 0 &&
1629 state != NLP_STE_NPR_NODE)
1630 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1631 if (old_state == NLP_STE_UNMAPPED_NODE) {
1632 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1633 ndlp->nlp_type &= ~NLP_FC_NODE;
1636 if (list_empty(&ndlp->nlp_listp)) {
1637 spin_lock_irq(shost->host_lock);
1638 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
1639 spin_unlock_irq(shost->host_lock);
1640 } else if (old_state)
1641 lpfc_nlp_counters(vport, old_state, -1);
1643 ndlp->nlp_state = state;
1644 lpfc_nlp_counters(vport, state, 1);
1645 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
1649 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1651 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1653 if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
1654 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1655 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
1656 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
1657 spin_lock_irq(shost->host_lock);
1658 list_del_init(&ndlp->nlp_listp);
1659 spin_unlock_irq(shost->host_lock);
1660 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
1661 NLP_STE_UNUSED_NODE);
1665 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1667 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1669 if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
1670 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1671 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
1672 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
1673 spin_lock_irq(shost->host_lock);
1674 list_del_init(&ndlp->nlp_listp);
1675 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
1676 spin_unlock_irq(shost->host_lock);
1681 * Start / ReStart rescue timer for Discovery / RSCN handling
1684 lpfc_set_disctmo(struct lpfc_vport *vport)
1686 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1687 struct lpfc_hba *phba = vport->phba;
1690 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
1691 /* For FAN, timeout should be greater then edtov */
1692 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1694 /* Normal discovery timeout should be > then ELS/CT timeout
1695 * FC spec states we need 3 * ratov for CT requests
1697 tmo = ((phba->fc_ratov * 3) + 3);
1701 if (!timer_pending(&vport->fc_disctmo)) {
1702 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1703 "set disc timer: tmo:x%x state:x%x flg:x%x",
1704 tmo, vport->port_state, vport->fc_flag);
1707 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
1708 spin_lock_irq(shost->host_lock);
1709 vport->fc_flag |= FC_DISC_TMO;
1710 spin_unlock_irq(shost->host_lock);
1712 /* Start Discovery Timer state <hba_state> */
1713 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1714 "%d (%d):0247 Start Discovery Timer state x%x "
1715 "Data: x%x x%lx x%x x%x\n",
1716 phba->brd_no, vport->vpi, vport->port_state, tmo,
1717 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
1718 vport->fc_adisc_cnt);
1724 * Cancel rescue timer for Discovery / RSCN handling
1727 lpfc_can_disctmo(struct lpfc_vport *vport)
1729 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1730 struct lpfc_hba *phba = vport->phba;
1731 unsigned long iflags;
1733 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1734 "can disc timer: state:x%x rtry:x%x flg:x%x",
1735 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
1737 /* Turn off discovery timer if its running */
1738 if (vport->fc_flag & FC_DISC_TMO) {
1739 spin_lock_irqsave(shost->host_lock, iflags);
1740 vport->fc_flag &= ~FC_DISC_TMO;
1741 spin_unlock_irqrestore(shost->host_lock, iflags);
1742 del_timer_sync(&vport->fc_disctmo);
1743 spin_lock_irqsave(&vport->work_port_lock, iflags);
1744 vport->work_port_events &= ~WORKER_DISC_TMO;
1745 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
1748 /* Cancel Discovery Timer state <hba_state> */
1749 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1750 "%d (%d):0248 Cancel Discovery Timer state x%x "
1751 "Data: x%x x%x x%x\n",
1752 phba->brd_no, vport->vpi, vport->port_state,
1753 vport->fc_flag, vport->fc_plogi_cnt,
1754 vport->fc_adisc_cnt);
1760 * Check specified ring for outstanding IOCB on the SLI queue
1761 * Return true if iocb matches the specified nport
1764 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
1765 struct lpfc_sli_ring *pring,
1766 struct lpfc_iocbq *iocb,
1767 struct lpfc_nodelist *ndlp)
1769 struct lpfc_sli *psli = &phba->sli;
1770 IOCB_t *icmd = &iocb->iocb;
1771 struct lpfc_vport *vport = ndlp->vport;
1773 if (iocb->vport != vport)
1776 if (pring->ringno == LPFC_ELS_RING) {
1777 switch (icmd->ulpCommand) {
1778 case CMD_GEN_REQUEST64_CR:
1779 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1781 case CMD_ELS_REQUEST64_CR:
1782 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1784 case CMD_XMIT_ELS_RSP64_CX:
1785 if (iocb->context1 == (uint8_t *) ndlp)
1788 } else if (pring->ringno == psli->extra_ring) {
1790 } else if (pring->ringno == psli->fcp_ring) {
1791 /* Skip match check if waiting to relogin to FCP target */
1792 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1793 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1796 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1799 } else if (pring->ringno == psli->next_ring) {
1806 * Free resources / clean up outstanding I/Os
1807 * associated with nlp_rpi in the LPFC_NODELIST entry.
1810 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1812 LIST_HEAD(completions);
1813 struct lpfc_sli *psli;
1814 struct lpfc_sli_ring *pring;
1815 struct lpfc_iocbq *iocb, *next_iocb;
1819 lpfc_fabric_abort_nport(ndlp);
1822 * Everything that matches on txcmplq will be returned
1823 * by firmware with a no rpi error.
1826 rpi = ndlp->nlp_rpi;
1828 /* Now process each ring */
1829 for (i = 0; i < psli->num_rings; i++) {
1830 pring = &psli->ring[i];
1832 spin_lock_irq(&phba->hbalock);
1833 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1836 * Check to see if iocb matches the nport we are
1839 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
1841 /* It matches, so deque and call compl
1843 list_move_tail(&iocb->list,
1848 spin_unlock_irq(&phba->hbalock);
1852 while (!list_empty(&completions)) {
1853 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
1854 list_del_init(&iocb->list);
1856 if (!iocb->iocb_cmpl)
1857 lpfc_sli_release_iocbq(phba, iocb);
1860 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1861 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
1862 (iocb->iocb_cmpl)(phba, iocb, iocb);
1870 * Free rpi associated with LPFC_NODELIST entry.
1871 * This routine is called from lpfc_freenode(), when we are removing
1872 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1873 * LOGO that completes successfully, and we are waiting to PLOGI back
1874 * to the remote NPort. In addition, it is called after we receive
1875 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1876 * we are waiting to PLOGI back to the remote NPort.
1879 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1881 struct lpfc_hba *phba = vport->phba;
1885 if (ndlp->nlp_rpi) {
1886 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1888 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
1889 mbox->vport = vport;
1890 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1891 rc = lpfc_sli_issue_mbox(phba, mbox,
1892 (MBX_NOWAIT | MBX_STOP_IOCB));
1893 if (rc == MBX_NOT_FINISHED)
1894 mempool_free(mbox, phba->mbox_mem_pool);
1896 lpfc_no_rpi(phba, ndlp);
1904 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
1906 struct lpfc_hba *phba = vport->phba;
1910 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1912 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
1913 mbox->vport = vport;
1914 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1915 rc = lpfc_sli_issue_mbox(phba, mbox,
1916 (MBX_NOWAIT | MBX_STOP_IOCB));
1917 if (rc == MBX_NOT_FINISHED) {
1918 mempool_free(mbox, phba->mbox_mem_pool);
1924 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
1926 struct lpfc_hba *phba = vport->phba;
1930 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1932 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
1933 mbox->vport = vport;
1934 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1935 rc = lpfc_sli_issue_mbox(phba, mbox,
1936 (MBX_NOWAIT | MBX_STOP_IOCB));
1937 if (rc == MBX_NOT_FINISHED) {
1938 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT,
1939 "%d (%d):1815 Could not issue "
1940 "unreg_did (default rpis)\n",
1941 phba->brd_no, vport->vpi);
1942 mempool_free(mbox, phba->mbox_mem_pool);
1948 * Free resources associated with LPFC_NODELIST entry
1949 * so it can be freed.
1952 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1954 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1955 struct lpfc_hba *phba = vport->phba;
1956 LPFC_MBOXQ_t *mb, *nextmb;
1957 struct lpfc_dmabuf *mp;
1959 /* Cleanup node for NPort <nlp_DID> */
1960 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1961 "%d (%d):0900 Cleanup node for NPort x%x "
1962 "Data: x%x x%x x%x\n",
1963 phba->brd_no, vport->vpi, ndlp->nlp_DID, ndlp->nlp_flag,
1964 ndlp->nlp_state, ndlp->nlp_rpi);
1966 lpfc_dequeue_node(vport, ndlp);
1968 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1969 if ((mb = phba->sli.mbox_active)) {
1970 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1971 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1972 mb->context2 = NULL;
1973 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1977 spin_lock_irq(&phba->hbalock);
1978 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1979 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1980 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1981 mp = (struct lpfc_dmabuf *) (mb->context1);
1983 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
1986 list_del(&mb->list);
1987 mempool_free(mb, phba->mbox_mem_pool);
1991 spin_unlock_irq(&phba->hbalock);
1993 lpfc_els_abort(phba,ndlp);
1994 spin_lock_irq(shost->host_lock);
1995 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1996 spin_unlock_irq(shost->host_lock);
1998 ndlp->nlp_last_elscmd = 0;
1999 del_timer_sync(&ndlp->nlp_delayfunc);
2001 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
2002 list_del_init(&ndlp->els_retry_evt.evt_listp);
2003 if (!list_empty(&ndlp->dev_loss_evt.evt_listp))
2004 list_del_init(&ndlp->dev_loss_evt.evt_listp);
2006 if (!list_empty(&ndlp->dev_loss_evt.evt_listp)) {
2007 list_del_init(&ndlp->dev_loss_evt.evt_listp);
2008 complete((struct completion *)(ndlp->dev_loss_evt.evt_arg2));
2011 lpfc_unreg_rpi(vport, ndlp);
2017 * Check to see if we can free the nlp back to the freelist.
2018 * If we are in the middle of using the nlp in the discovery state
2019 * machine, defer the free till we reach the end of the state machine.
2022 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2024 struct lpfc_rport_data *rdata;
2026 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
2027 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2030 lpfc_cleanup_node(vport, ndlp);
2033 * We can get here with a non-NULL ndlp->rport because when we
2034 * unregister a rport we don't break the rport/node linkage. So if we
2035 * do, make sure we don't leaving any dangling pointers behind.
2038 rdata = ndlp->rport->dd_data;
2039 rdata->pnode = NULL;
2045 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2048 D_ID mydid, ndlpdid, matchdid;
2050 if (did == Bcast_DID)
2053 if (ndlp->nlp_DID == 0) {
2057 /* First check for Direct match */
2058 if (ndlp->nlp_DID == did)
2061 /* Next check for area/domain identically equals 0 match */
2062 mydid.un.word = vport->fc_myDID;
2063 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2067 matchdid.un.word = did;
2068 ndlpdid.un.word = ndlp->nlp_DID;
2069 if (matchdid.un.b.id == ndlpdid.un.b.id) {
2070 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
2071 (mydid.un.b.area == matchdid.un.b.area)) {
2072 if ((ndlpdid.un.b.domain == 0) &&
2073 (ndlpdid.un.b.area == 0)) {
2074 if (ndlpdid.un.b.id)
2080 matchdid.un.word = ndlp->nlp_DID;
2081 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
2082 (mydid.un.b.area == ndlpdid.un.b.area)) {
2083 if ((matchdid.un.b.domain == 0) &&
2084 (matchdid.un.b.area == 0)) {
2085 if (matchdid.un.b.id)
2093 /* Search for a nodelist entry */
2094 static struct lpfc_nodelist *
2095 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
2097 struct lpfc_hba *phba = vport->phba;
2098 struct lpfc_nodelist *ndlp;
2101 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2102 if (lpfc_matchdid(vport, ndlp, did)) {
2103 data1 = (((uint32_t) ndlp->nlp_state << 24) |
2104 ((uint32_t) ndlp->nlp_xri << 16) |
2105 ((uint32_t) ndlp->nlp_type << 8) |
2106 ((uint32_t) ndlp->nlp_rpi & 0xff));
2107 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
2108 "%d (%d):0929 FIND node DID "
2109 " Data: x%p x%x x%x x%x\n",
2110 phba->brd_no, vport->vpi,
2111 ndlp, ndlp->nlp_DID,
2112 ndlp->nlp_flag, data1);
2117 /* FIND node did <did> NOT FOUND */
2118 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
2119 "%d (%d):0932 FIND node did x%x NOT FOUND.\n",
2120 phba->brd_no, vport->vpi, did);
2124 struct lpfc_nodelist *
2125 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
2127 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2128 struct lpfc_nodelist *ndlp;
2130 spin_lock_irq(shost->host_lock);
2131 ndlp = __lpfc_findnode_did(vport, did);
2132 spin_unlock_irq(shost->host_lock);
2136 struct lpfc_nodelist *
2137 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
2139 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2140 struct lpfc_nodelist *ndlp;
2142 ndlp = lpfc_findnode_did(vport, did);
2144 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
2145 lpfc_rscn_payload_check(vport, did) == 0)
2147 ndlp = (struct lpfc_nodelist *)
2148 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
2151 lpfc_nlp_init(vport, ndlp, did);
2152 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2153 spin_lock_irq(shost->host_lock);
2154 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2155 spin_unlock_irq(shost->host_lock);
2158 if (vport->fc_flag & FC_RSCN_MODE) {
2159 if (lpfc_rscn_payload_check(vport, did)) {
2160 spin_lock_irq(shost->host_lock);
2161 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2162 spin_unlock_irq(shost->host_lock);
2164 /* Since this node is marked for discovery,
2165 * delay timeout is not needed.
2167 if (ndlp->nlp_flag & NLP_DELAY_TMO)
2168 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2172 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
2173 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE)
2175 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2176 spin_lock_irq(shost->host_lock);
2177 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2178 spin_unlock_irq(shost->host_lock);
2183 /* Build a list of nodes to discover based on the loopmap */
2185 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
2187 struct lpfc_hba *phba = vport->phba;
2189 uint32_t alpa, index;
2191 if (!lpfc_is_link_up(phba))
2194 if (phba->fc_topology != TOPOLOGY_LOOP)
2197 /* Check for loop map present or not */
2198 if (phba->alpa_map[0]) {
2199 for (j = 1; j <= phba->alpa_map[0]; j++) {
2200 alpa = phba->alpa_map[j];
2201 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
2203 lpfc_setup_disc_node(vport, alpa);
2206 /* No alpamap, so try all alpa's */
2207 for (j = 0; j < FC_MAXLOOP; j++) {
2208 /* If cfg_scan_down is set, start from highest
2209 * ALPA (0xef) to lowest (0x1).
2211 if (phba->cfg_scan_down)
2214 index = FC_MAXLOOP - j - 1;
2215 alpa = lpfcAlpaArray[index];
2216 if ((vport->fc_myDID & 0xff) == alpa)
2218 lpfc_setup_disc_node(vport, alpa);
2225 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
2228 struct lpfc_sli *psli = &phba->sli;
2229 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
2230 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
2231 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
2235 * if it's not a physical port or if we already send
2236 * clear_la then don't send it.
2238 if ((phba->link_state >= LPFC_CLEAR_LA) ||
2239 (vport->port_type != LPFC_PHYSICAL_PORT))
2242 /* Link up discovery */
2243 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
2244 phba->link_state = LPFC_CLEAR_LA;
2245 lpfc_clear_la(phba, mbox);
2246 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2247 mbox->vport = vport;
2248 rc = lpfc_sli_issue_mbox(phba, mbox, (MBX_NOWAIT |
2250 if (rc == MBX_NOT_FINISHED) {
2251 mempool_free(mbox, phba->mbox_mem_pool);
2252 lpfc_disc_flush_list(vport);
2253 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2254 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2255 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2256 phba->link_state = LPFC_HBA_ERROR;
2261 /* Reg_vpi to tell firmware to resume normal operations */
2263 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
2265 LPFC_MBOXQ_t *regvpimbox;
2267 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2269 lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, regvpimbox);
2270 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
2271 regvpimbox->vport = vport;
2272 if (lpfc_sli_issue_mbox(phba, regvpimbox,
2273 (MBX_NOWAIT | MBX_STOP_IOCB))
2274 == MBX_NOT_FINISHED) {
2275 mempool_free(regvpimbox, phba->mbox_mem_pool);
2280 /* Start Link up / RSCN discovery on NPR nodes */
2282 lpfc_disc_start(struct lpfc_vport *vport)
2284 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2285 struct lpfc_hba *phba = vport->phba;
2287 uint32_t clear_la_pending;
2290 if (!lpfc_is_link_up(phba))
2293 if (phba->link_state == LPFC_CLEAR_LA)
2294 clear_la_pending = 1;
2296 clear_la_pending = 0;
2298 if (vport->port_state < LPFC_VPORT_READY)
2299 vport->port_state = LPFC_DISC_AUTH;
2301 lpfc_set_disctmo(vport);
2303 if (vport->fc_prevDID == vport->fc_myDID)
2308 vport->fc_prevDID = vport->fc_myDID;
2309 vport->num_disc_nodes = 0;
2311 /* Start Discovery state <hba_state> */
2312 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
2313 "%d (%d):0202 Start Discovery hba state x%x "
2314 "Data: x%x x%x x%x\n",
2315 phba->brd_no, vport->vpi, vport->port_state,
2316 vport->fc_flag, vport->fc_plogi_cnt,
2317 vport->fc_adisc_cnt);
2319 /* First do ADISCs - if any */
2320 num_sent = lpfc_els_disc_adisc(vport);
2326 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
2327 * continue discovery.
2329 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2330 !(vport->fc_flag & FC_RSCN_MODE)) {
2331 lpfc_issue_reg_vpi(phba, vport);
2336 * For SLI2, we need to set port_state to READY and continue
2339 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
2340 /* If we get here, there is nothing to ADISC */
2341 if (vport->port_type == LPFC_PHYSICAL_PORT)
2342 lpfc_issue_clear_la(phba, vport);
2344 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2345 vport->num_disc_nodes = 0;
2346 /* go thru NPR nodes and issue ELS PLOGIs */
2347 if (vport->fc_npr_cnt)
2348 lpfc_els_disc_plogi(vport);
2350 if (!vport->num_disc_nodes) {
2351 spin_lock_irq(shost->host_lock);
2352 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2353 spin_unlock_irq(shost->host_lock);
2354 lpfc_can_disctmo(vport);
2357 vport->port_state = LPFC_VPORT_READY;
2359 /* Next do PLOGIs - if any */
2360 num_sent = lpfc_els_disc_plogi(vport);
2365 if (vport->fc_flag & FC_RSCN_MODE) {
2366 /* Check to see if more RSCNs came in while we
2367 * were processing this one.
2369 if ((vport->fc_rscn_id_cnt == 0) &&
2370 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
2371 spin_lock_irq(shost->host_lock);
2372 vport->fc_flag &= ~FC_RSCN_MODE;
2373 spin_unlock_irq(shost->host_lock);
2374 lpfc_can_disctmo(vport);
2376 lpfc_els_handle_rscn(vport);
2383 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2384 * ring the match the sppecified nodelist.
2387 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
2389 LIST_HEAD(completions);
2390 struct lpfc_sli *psli;
2392 struct lpfc_iocbq *iocb, *next_iocb;
2393 struct lpfc_sli_ring *pring;
2396 pring = &psli->ring[LPFC_ELS_RING];
2398 /* Error matching iocb on txq or txcmplq
2399 * First check the txq.
2401 spin_lock_irq(&phba->hbalock);
2402 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2403 if (iocb->context1 != ndlp) {
2407 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2408 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2410 list_move_tail(&iocb->list, &completions);
2415 /* Next check the txcmplq */
2416 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2417 if (iocb->context1 != ndlp) {
2421 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
2422 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
2423 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
2426 spin_unlock_irq(&phba->hbalock);
2428 while (!list_empty(&completions)) {
2429 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
2430 list_del_init(&iocb->list);
2432 if (!iocb->iocb_cmpl)
2433 lpfc_sli_release_iocbq(phba, iocb);
2436 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2437 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2438 (iocb->iocb_cmpl) (phba, iocb, iocb);
2444 lpfc_disc_flush_list(struct lpfc_vport *vport)
2446 struct lpfc_nodelist *ndlp, *next_ndlp;
2447 struct lpfc_hba *phba = vport->phba;
2449 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
2450 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
2452 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
2453 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
2454 lpfc_free_tx(phba, ndlp);
2462 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
2464 lpfc_els_flush_rscn(vport);
2465 lpfc_els_flush_cmd(vport);
2466 lpfc_disc_flush_list(vport);
2469 /*****************************************************************************/
2471 * NAME: lpfc_disc_timeout
2473 * FUNCTION: Fibre Channel driver discovery timeout routine.
2475 * EXECUTION ENVIRONMENT: interrupt only
2483 /*****************************************************************************/
2485 lpfc_disc_timeout(unsigned long ptr)
2487 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
2488 struct lpfc_hba *phba = vport->phba;
2489 unsigned long flags = 0;
2491 if (unlikely(!phba))
2494 if ((vport->work_port_events & WORKER_DISC_TMO) == 0) {
2495 spin_lock_irqsave(&vport->work_port_lock, flags);
2496 vport->work_port_events |= WORKER_DISC_TMO;
2497 spin_unlock_irqrestore(&vport->work_port_lock, flags);
2499 spin_lock_irqsave(&phba->hbalock, flags);
2500 if (phba->work_wait)
2501 lpfc_worker_wake_up(phba);
2502 spin_unlock_irqrestore(&phba->hbalock, flags);
2508 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
2510 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2511 struct lpfc_hba *phba = vport->phba;
2512 struct lpfc_sli *psli = &phba->sli;
2513 struct lpfc_nodelist *ndlp, *next_ndlp;
2514 LPFC_MBOXQ_t *initlinkmbox;
2515 int rc, clrlaerr = 0;
2517 if (!(vport->fc_flag & FC_DISC_TMO))
2520 spin_lock_irq(shost->host_lock);
2521 vport->fc_flag &= ~FC_DISC_TMO;
2522 spin_unlock_irq(shost->host_lock);
2524 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2525 "disc timeout: state:x%x rtry:x%x flg:x%x",
2526 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
2528 switch (vport->port_state) {
2530 case LPFC_LOCAL_CFG_LINK:
2531 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
2535 lpfc_printf_log(phba, KERN_WARNING, LOG_DISCOVERY,
2536 "%d (%d):0221 FAN timeout\n",
2537 phba->brd_no, vport->vpi);
2539 /* Start discovery by sending FLOGI, clean up old rpis */
2540 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
2542 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
2544 if (ndlp->nlp_type & NLP_FABRIC) {
2545 /* Clean up the ndlp on Fabric connections */
2546 lpfc_drop_node(vport, ndlp);
2547 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2548 /* Fail outstanding IO now since device
2549 * is marked for PLOGI.
2551 lpfc_unreg_rpi(vport, ndlp);
2554 if (vport->port_state != LPFC_FLOGI) {
2555 vport->port_state = LPFC_FLOGI;
2556 lpfc_set_disctmo(vport);
2557 lpfc_initial_flogi(vport);
2563 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2564 /* Initial FLOGI timeout */
2565 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2566 "%d (%d):0222 Initial %s timeout\n",
2567 phba->brd_no, vport->vpi,
2568 vport->vpi ? "FLOGI" : "FDISC");
2570 /* Assume no Fabric and go on with discovery.
2571 * Check for outstanding ELS FLOGI to abort.
2574 /* FLOGI failed, so just use loop map to make discovery list */
2575 lpfc_disc_list_loopmap(vport);
2577 /* Start discovery */
2578 lpfc_disc_start(vport);
2581 case LPFC_FABRIC_CFG_LINK:
2582 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2584 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2585 "%d (%d):0223 Timeout while waiting for "
2586 "NameServer login\n",
2587 phba->brd_no, vport->vpi);
2589 /* Next look for NameServer ndlp */
2590 ndlp = lpfc_findnode_did(vport, NameServer_DID);
2593 /* Start discovery */
2594 lpfc_disc_start(vport);
2598 /* Check for wait for NameServer Rsp timeout */
2599 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2600 "%d (%d):0224 NameServer Query timeout "
2602 phba->brd_no, vport->vpi,
2603 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
2605 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2606 /* Try it one more time */
2607 vport->fc_ns_retry++;
2608 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
2609 vport->fc_ns_retry, 0);
2613 vport->fc_ns_retry = 0;
2616 * Discovery is over.
2617 * set port_state to PORT_READY if SLI2.
2618 * cmpl_reg_vpi will set port_state to READY for SLI3.
2620 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2621 lpfc_issue_reg_vpi(phba, vport);
2622 else { /* NPIV Not enabled */
2623 lpfc_issue_clear_la(phba, vport);
2624 vport->port_state = LPFC_VPORT_READY;
2627 /* Setup and issue mailbox INITIALIZE LINK command */
2628 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2629 if (!initlinkmbox) {
2630 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2631 "%d (%d):0206 Device Discovery "
2632 "completion error\n",
2633 phba->brd_no, vport->vpi);
2634 phba->link_state = LPFC_HBA_ERROR;
2638 lpfc_linkdown(phba);
2639 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2640 phba->cfg_link_speed);
2641 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2642 initlinkmbox->vport = vport;
2643 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2644 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2645 (MBX_NOWAIT | MBX_STOP_IOCB));
2646 lpfc_set_loopback_flag(phba);
2647 if (rc == MBX_NOT_FINISHED)
2648 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2652 case LPFC_DISC_AUTH:
2653 /* Node Authentication timeout */
2654 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2655 "%d (%d):0227 Node Authentication timeout\n",
2656 phba->brd_no, vport->vpi);
2657 lpfc_disc_flush_list(vport);
2660 * set port_state to PORT_READY if SLI2.
2661 * cmpl_reg_vpi will set port_state to READY for SLI3.
2663 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2664 lpfc_issue_reg_vpi(phba, vport);
2665 else { /* NPIV Not enabled */
2666 lpfc_issue_clear_la(phba, vport);
2667 vport->port_state = LPFC_VPORT_READY;
2671 case LPFC_VPORT_READY:
2672 if (vport->fc_flag & FC_RSCN_MODE) {
2673 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2674 "%d (%d):0231 RSCN timeout Data: x%x "
2676 phba->brd_no, vport->vpi,
2677 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
2679 /* Cleanup any outstanding ELS commands */
2680 lpfc_els_flush_cmd(vport);
2682 lpfc_els_flush_rscn(vport);
2683 lpfc_disc_flush_list(vport);
2688 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2689 "%d (%d):0229 Unexpected discovery timeout, "
2690 "vport State x%x\n",
2691 phba->brd_no, vport->vpi, vport->port_state);
2696 switch (phba->link_state) {
2698 /* CLEAR LA timeout */
2699 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2700 "%d (%d):0228 CLEAR LA timeout\n",
2701 phba->brd_no, vport->vpi);
2705 case LPFC_LINK_UNKNOWN:
2706 case LPFC_WARM_START:
2707 case LPFC_INIT_START:
2708 case LPFC_INIT_MBX_CMDS:
2709 case LPFC_LINK_DOWN:
2711 case LPFC_HBA_ERROR:
2712 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2713 "%d (%d):0230 Unexpected timeout, hba link "
2715 phba->brd_no, vport->vpi, phba->link_state);
2719 case LPFC_HBA_READY:
2724 lpfc_disc_flush_list(vport);
2725 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2726 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2727 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2728 vport->port_state = LPFC_VPORT_READY;
2735 * This routine handles processing a NameServer REG_LOGIN mailbox
2736 * command upon completion. It is setup in the LPFC_MBOXQ
2737 * as the completion routine when the command is
2738 * handed off to the SLI layer.
2741 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2743 MAILBOX_t *mb = &pmb->mb;
2744 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2745 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2746 struct lpfc_vport *vport = pmb->vport;
2748 pmb->context1 = NULL;
2750 ndlp->nlp_rpi = mb->un.varWords[0];
2751 ndlp->nlp_type |= NLP_FABRIC;
2752 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2755 * Start issuing Fabric-Device Management Interface (FDMI) command to
2756 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
2757 * fdmi-on=2 (supporting RPA/hostnmae)
2760 if (phba->cfg_fdmi_on == 1)
2761 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
2763 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
2765 /* Mailbox took a reference to the node */
2767 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2769 mempool_free(pmb, phba->mbox_mem_pool);
2775 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
2777 uint16_t *rpi = param;
2779 return ndlp->nlp_rpi == *rpi;
2783 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
2785 return memcmp(&ndlp->nlp_portname, param,
2786 sizeof(ndlp->nlp_portname)) == 0;
2789 struct lpfc_nodelist *
2790 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
2792 struct lpfc_nodelist *ndlp;
2794 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2795 if (ndlp->nlp_state != NLP_STE_UNUSED_NODE &&
2796 filter(ndlp, param))
2803 * Search node lists for a remote port matching filter criteria
2804 * Caller needs to hold host_lock before calling this routine.
2806 struct lpfc_nodelist *
2807 lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
2809 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2810 struct lpfc_nodelist *ndlp;
2812 spin_lock_irq(shost->host_lock);
2813 ndlp = __lpfc_find_node(vport, filter, param);
2814 spin_unlock_irq(shost->host_lock);
2819 * This routine looks up the ndlp lists for the given RPI. If rpi found it
2820 * returns the node list element pointer else return NULL.
2822 struct lpfc_nodelist *
2823 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
2825 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
2828 struct lpfc_nodelist *
2829 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
2831 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2832 struct lpfc_nodelist *ndlp;
2834 spin_lock_irq(shost->host_lock);
2835 ndlp = __lpfc_findnode_rpi(vport, rpi);
2836 spin_unlock_irq(shost->host_lock);
2841 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
2842 * returns the node element list pointer else return NULL.
2844 struct lpfc_nodelist *
2845 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
2847 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2848 struct lpfc_nodelist *ndlp;
2850 spin_lock_irq(shost->host_lock);
2851 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
2852 spin_unlock_irq(shost->host_lock);
2857 lpfc_dev_loss_delay(unsigned long ptr)
2859 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
2860 struct lpfc_vport *vport = ndlp->vport;
2861 struct lpfc_hba *phba = vport->phba;
2862 struct lpfc_work_evt *evtp = &ndlp->dev_loss_evt;
2863 unsigned long flags;
2865 evtp = &ndlp->dev_loss_evt;
2867 spin_lock_irqsave(&phba->hbalock, flags);
2868 if (!list_empty(&evtp->evt_listp)) {
2869 spin_unlock_irqrestore(&phba->hbalock, flags);
2873 evtp->evt_arg1 = ndlp;
2874 evtp->evt = LPFC_EVT_DEV_LOSS_DELAY;
2875 list_add_tail(&evtp->evt_listp, &phba->work_list);
2876 if (phba->work_wait)
2877 lpfc_worker_wake_up(phba);
2878 spin_unlock_irqrestore(&phba->hbalock, flags);
2883 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2886 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2887 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2888 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
2889 init_timer(&ndlp->nlp_delayfunc);
2890 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2891 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2892 ndlp->nlp_DID = did;
2893 ndlp->vport = vport;
2894 ndlp->nlp_sid = NLP_NO_SID;
2895 INIT_LIST_HEAD(&ndlp->nlp_listp);
2896 kref_init(&ndlp->kref);
2898 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2899 "node init: did:x%x",
2900 ndlp->nlp_DID, 0, 0);
2906 lpfc_nlp_release(struct kref *kref)
2908 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
2911 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
2912 "node release: did:x%x flg:x%x type:x%x",
2913 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
2915 lpfc_nlp_remove(ndlp->vport, ndlp);
2916 mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool);
2919 struct lpfc_nodelist *
2920 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
2923 kref_get(&ndlp->kref);
2928 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
2930 return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0;