1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2008 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 *);
60 static void lpfc_disc_flush_list(struct lpfc_vport *vport);
63 lpfc_terminate_rport_io(struct fc_rport *rport)
65 struct lpfc_rport_data *rdata;
66 struct lpfc_nodelist * ndlp;
67 struct lpfc_hba *phba;
69 rdata = rport->dd_data;
72 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
73 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
74 printk(KERN_ERR "Cannot find remote node"
75 " to terminate I/O Data x%x\n",
80 phba = ndlp->vport->phba;
82 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
83 "rport terminate: sid:x%x did:x%x flg:x%x",
84 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
86 if (ndlp->nlp_sid != NLP_NO_SID) {
87 lpfc_sli_abort_iocb(ndlp->vport,
88 &phba->sli.ring[phba->sli.fcp_ring],
89 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
93 * A device is normally blocked for rediscovery and unblocked when
94 * devloss timeout happens. In case a vport is removed or driver
95 * unloaded before devloss timeout happens, we need to unblock here.
97 scsi_target_unblock(&rport->dev);
102 * This function will be called when dev_loss_tmo fire.
105 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
107 struct lpfc_rport_data *rdata;
108 struct lpfc_nodelist * ndlp;
109 struct lpfc_vport *vport;
110 struct lpfc_hba *phba;
111 struct lpfc_work_evt *evtp;
115 rdata = rport->dd_data;
117 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
123 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
124 "rport devlosscb: sid:x%x did:x%x flg:x%x",
125 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
127 /* Don't defer this if we are in the process of deleting the vport
128 * or unloading the driver. The unload will cleanup the node
129 * appropriately we just need to cleanup the ndlp rport info here.
131 if (vport->load_flag & FC_UNLOADING) {
132 put_node = rdata->pnode != NULL;
133 put_rport = ndlp->rport != NULL;
139 put_device(&rport->dev);
143 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
146 evtp = &ndlp->dev_loss_evt;
148 if (!list_empty(&evtp->evt_listp))
151 spin_lock_irq(&phba->hbalock);
152 /* We need to hold the node by incrementing the reference
153 * count until this queued work is done
155 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
156 if (evtp->evt_arg1) {
157 evtp->evt = LPFC_EVT_DEV_LOSS;
158 list_add_tail(&evtp->evt_listp, &phba->work_list);
159 lpfc_worker_wake_up(phba);
161 spin_unlock_irq(&phba->hbalock);
167 * This function is called from the worker thread when dev_loss_tmo
171 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
173 struct lpfc_rport_data *rdata;
174 struct fc_rport *rport;
175 struct lpfc_vport *vport;
176 struct lpfc_hba *phba;
187 rdata = rport->dd_data;
188 name = (uint8_t *) &ndlp->nlp_portname;
192 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
193 "rport devlosstmo:did:x%x type:x%x id:x%x",
194 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
196 /* Don't defer this if we are in the process of deleting the vport
197 * or unloading the driver. The unload will cleanup the node
198 * appropriately we just need to cleanup the ndlp rport info here.
200 if (vport->load_flag & FC_UNLOADING) {
201 if (ndlp->nlp_sid != NLP_NO_SID) {
202 /* flush the target */
203 lpfc_sli_abort_iocb(vport,
204 &phba->sli.ring[phba->sli.fcp_ring],
205 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
207 put_node = rdata->pnode != NULL;
208 put_rport = ndlp->rport != NULL;
214 put_device(&rport->dev);
218 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
221 if (ndlp->nlp_type & NLP_FABRIC) {
222 /* We will clean up these Nodes in linkup */
223 put_node = rdata->pnode != NULL;
224 put_rport = ndlp->rport != NULL;
230 put_device(&rport->dev);
234 if (ndlp->nlp_sid != NLP_NO_SID) {
236 /* flush the target */
237 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
238 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
240 if (vport->load_flag & FC_UNLOADING)
244 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
245 "0203 Devloss timeout on "
246 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
247 "NPort x%06x Data: x%x x%x x%x\n",
248 *name, *(name+1), *(name+2), *(name+3),
249 *(name+4), *(name+5), *(name+6), *(name+7),
250 ndlp->nlp_DID, ndlp->nlp_flag,
251 ndlp->nlp_state, ndlp->nlp_rpi);
253 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
254 "0204 Devloss timeout on "
255 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
256 "NPort x%06x Data: x%x x%x x%x\n",
257 *name, *(name+1), *(name+2), *(name+3),
258 *(name+4), *(name+5), *(name+6), *(name+7),
259 ndlp->nlp_DID, ndlp->nlp_flag,
260 ndlp->nlp_state, ndlp->nlp_rpi);
263 put_node = rdata->pnode != NULL;
264 put_rport = ndlp->rport != NULL;
270 put_device(&rport->dev);
272 if (!(vport->load_flag & FC_UNLOADING) &&
273 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
274 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
275 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE))
276 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
280 lpfc_work_list_done(struct lpfc_hba *phba)
282 struct lpfc_work_evt *evtp = NULL;
283 struct lpfc_nodelist *ndlp;
286 spin_lock_irq(&phba->hbalock);
287 while (!list_empty(&phba->work_list)) {
288 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
290 spin_unlock_irq(&phba->hbalock);
293 case LPFC_EVT_ELS_RETRY:
294 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
295 lpfc_els_retry_delay_handler(ndlp);
296 free_evt = 0; /* evt is part of ndlp */
297 /* decrement the node reference count held
298 * for this queued work
302 case LPFC_EVT_DEV_LOSS:
303 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
304 lpfc_dev_loss_tmo_handler(ndlp);
306 /* decrement the node reference count held for
311 case LPFC_EVT_ONLINE:
312 if (phba->link_state < LPFC_LINK_DOWN)
313 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
315 *(int *) (evtp->evt_arg1) = 0;
316 complete((struct completion *)(evtp->evt_arg2));
318 case LPFC_EVT_OFFLINE_PREP:
319 if (phba->link_state >= LPFC_LINK_DOWN)
320 lpfc_offline_prep(phba);
321 *(int *)(evtp->evt_arg1) = 0;
322 complete((struct completion *)(evtp->evt_arg2));
324 case LPFC_EVT_OFFLINE:
326 lpfc_sli_brdrestart(phba);
327 *(int *)(evtp->evt_arg1) =
328 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
329 lpfc_unblock_mgmt_io(phba);
330 complete((struct completion *)(evtp->evt_arg2));
332 case LPFC_EVT_WARM_START:
334 lpfc_reset_barrier(phba);
335 lpfc_sli_brdreset(phba);
336 lpfc_hba_down_post(phba);
337 *(int *)(evtp->evt_arg1) =
338 lpfc_sli_brdready(phba, HS_MBRDY);
339 lpfc_unblock_mgmt_io(phba);
340 complete((struct completion *)(evtp->evt_arg2));
344 *(int *)(evtp->evt_arg1)
345 = (phba->pport->stopped)
346 ? 0 : lpfc_sli_brdkill(phba);
347 lpfc_unblock_mgmt_io(phba);
348 complete((struct completion *)(evtp->evt_arg2));
353 spin_lock_irq(&phba->hbalock);
355 spin_unlock_irq(&phba->hbalock);
360 lpfc_work_done(struct lpfc_hba *phba)
362 struct lpfc_sli_ring *pring;
363 uint32_t ha_copy, status, control, work_port_events;
364 struct lpfc_vport **vports;
365 struct lpfc_vport *vport;
368 spin_lock_irq(&phba->hbalock);
369 ha_copy = phba->work_ha;
371 spin_unlock_irq(&phba->hbalock);
373 if (ha_copy & HA_ERATT)
374 lpfc_handle_eratt(phba);
376 if (ha_copy & HA_MBATT)
377 lpfc_sli_handle_mb_event(phba);
379 if (ha_copy & HA_LATT)
380 lpfc_handle_latt(phba);
381 vports = lpfc_create_vport_work_array(phba);
383 for(i = 0; i <= phba->max_vpi; i++) {
385 * We could have no vports in array if unloading, so if
386 * this happens then just use the pport
388 if (vports[i] == NULL && i == 0)
394 spin_lock_irq(&vport->work_port_lock);
395 work_port_events = vport->work_port_events;
396 vport->work_port_events &= ~work_port_events;
397 spin_unlock_irq(&vport->work_port_lock);
398 if (work_port_events & WORKER_DISC_TMO)
399 lpfc_disc_timeout_handler(vport);
400 if (work_port_events & WORKER_ELS_TMO)
401 lpfc_els_timeout_handler(vport);
402 if (work_port_events & WORKER_HB_TMO)
403 lpfc_hb_timeout_handler(phba);
404 if (work_port_events & WORKER_MBOX_TMO)
405 lpfc_mbox_timeout_handler(phba);
406 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
407 lpfc_unblock_fabric_iocbs(phba);
408 if (work_port_events & WORKER_FDMI_TMO)
409 lpfc_fdmi_timeout_handler(vport);
410 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
411 lpfc_ramp_down_queue_handler(phba);
412 if (work_port_events & WORKER_RAMP_UP_QUEUE)
413 lpfc_ramp_up_queue_handler(phba);
415 lpfc_destroy_vport_work_array(phba, vports);
417 pring = &phba->sli.ring[LPFC_ELS_RING];
418 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
419 status >>= (4*LPFC_ELS_RING);
420 if ((status & HA_RXMASK)
421 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
422 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
423 pring->flag |= LPFC_DEFERRED_RING_EVENT;
424 /* Set the lpfc data pending flag */
425 set_bit(LPFC_DATA_READY, &phba->data_flags);
427 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
428 lpfc_sli_handle_slow_ring_event(phba, pring,
433 * Turn on Ring interrupts
435 spin_lock_irq(&phba->hbalock);
436 control = readl(phba->HCregaddr);
437 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
438 lpfc_debugfs_slow_ring_trc(phba,
439 "WRK Enable ring: cntl:x%x hacopy:x%x",
440 control, ha_copy, 0);
442 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
443 writel(control, phba->HCregaddr);
444 readl(phba->HCregaddr); /* flush */
447 lpfc_debugfs_slow_ring_trc(phba,
448 "WRK Ring ok: cntl:x%x hacopy:x%x",
449 control, ha_copy, 0);
451 spin_unlock_irq(&phba->hbalock);
453 lpfc_work_list_done(phba);
457 lpfc_do_work(void *p)
459 struct lpfc_hba *phba = p;
462 set_user_nice(current, -20);
463 phba->data_flags = 0;
466 /* wait and check worker queue activities */
467 rc = wait_event_interruptible(phba->work_waitq,
468 (test_and_clear_bit(LPFC_DATA_READY,
470 || kthread_should_stop()));
473 if (kthread_should_stop())
476 /* Attend pending lpfc data processing */
477 lpfc_work_done(phba);
483 * This is only called to handle FC worker events. Since this a rare
484 * occurance, we allocate a struct lpfc_work_evt structure here instead of
485 * embedding it in the IOCB.
488 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
491 struct lpfc_work_evt *evtp;
495 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
496 * be queued to worker thread for processing
498 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
502 evtp->evt_arg1 = arg1;
503 evtp->evt_arg2 = arg2;
506 spin_lock_irqsave(&phba->hbalock, flags);
507 list_add_tail(&evtp->evt_listp, &phba->work_list);
508 spin_unlock_irqrestore(&phba->hbalock, flags);
510 lpfc_worker_wake_up(phba);
516 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
518 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
519 struct lpfc_hba *phba = vport->phba;
520 struct lpfc_nodelist *ndlp, *next_ndlp;
523 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
524 if (!NLP_CHK_NODE_ACT(ndlp))
526 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
528 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
529 ((vport->port_type == LPFC_NPIV_PORT) &&
530 (ndlp->nlp_DID == NameServer_DID)))
531 lpfc_unreg_rpi(vport, ndlp);
533 /* Leave Fabric nodes alone on link down */
534 if (!remove && ndlp->nlp_type & NLP_FABRIC)
536 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
539 : NLP_EVT_DEVICE_RECOVERY);
541 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
542 lpfc_mbx_unreg_vpi(vport);
543 spin_lock_irq(shost->host_lock);
544 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
545 spin_unlock_irq(shost->host_lock);
550 lpfc_port_link_failure(struct lpfc_vport *vport)
552 /* Cleanup any outstanding RSCN activity */
553 lpfc_els_flush_rscn(vport);
555 /* Cleanup any outstanding ELS commands */
556 lpfc_els_flush_cmd(vport);
558 lpfc_cleanup_rpis(vport, 0);
560 /* Turn off discovery timer if its running */
561 lpfc_can_disctmo(vport);
565 lpfc_linkdown_port(struct lpfc_vport *vport)
567 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
569 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
571 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
572 "Link Down: state:x%x rtry:x%x flg:x%x",
573 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
575 lpfc_port_link_failure(vport);
580 lpfc_linkdown(struct lpfc_hba *phba)
582 struct lpfc_vport *vport = phba->pport;
583 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
584 struct lpfc_vport **vports;
588 if (phba->link_state == LPFC_LINK_DOWN)
590 spin_lock_irq(&phba->hbalock);
591 if (phba->link_state > LPFC_LINK_DOWN) {
592 phba->link_state = LPFC_LINK_DOWN;
593 phba->pport->fc_flag &= ~FC_LBIT;
595 spin_unlock_irq(&phba->hbalock);
596 vports = lpfc_create_vport_work_array(phba);
598 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
599 /* Issue a LINK DOWN event to all nodes */
600 lpfc_linkdown_port(vports[i]);
602 lpfc_destroy_vport_work_array(phba, vports);
603 /* Clean up any firmware default rpi's */
604 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
606 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
608 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
609 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
610 == MBX_NOT_FINISHED) {
611 mempool_free(mb, phba->mbox_mem_pool);
615 /* Setup myDID for link up if we are in pt2pt mode */
616 if (phba->pport->fc_flag & FC_PT2PT) {
617 phba->pport->fc_myDID = 0;
618 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
620 lpfc_config_link(phba, mb);
621 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
623 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
624 == MBX_NOT_FINISHED) {
625 mempool_free(mb, phba->mbox_mem_pool);
628 spin_lock_irq(shost->host_lock);
629 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
630 spin_unlock_irq(shost->host_lock);
637 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
639 struct lpfc_nodelist *ndlp;
641 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
642 if (!NLP_CHK_NODE_ACT(ndlp))
644 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
646 if (ndlp->nlp_type & NLP_FABRIC) {
647 /* On Linkup its safe to clean up the ndlp
648 * from Fabric connections.
650 if (ndlp->nlp_DID != Fabric_DID)
651 lpfc_unreg_rpi(vport, ndlp);
652 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
653 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
654 /* Fail outstanding IO now since device is
657 lpfc_unreg_rpi(vport, ndlp);
663 lpfc_linkup_port(struct lpfc_vport *vport)
665 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
666 struct lpfc_hba *phba = vport->phba;
668 if ((vport->load_flag & FC_UNLOADING) != 0)
671 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
672 "Link Up: top:x%x speed:x%x flg:x%x",
673 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
675 /* If NPIV is not enabled, only bring the physical port up */
676 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
677 (vport != phba->pport))
680 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
682 spin_lock_irq(shost->host_lock);
683 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
684 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
685 vport->fc_flag |= FC_NDISC_ACTIVE;
686 vport->fc_ns_retry = 0;
687 spin_unlock_irq(shost->host_lock);
689 if (vport->fc_flag & FC_LBIT)
690 lpfc_linkup_cleanup_nodes(vport);
695 lpfc_linkup(struct lpfc_hba *phba)
697 struct lpfc_vport **vports;
700 phba->link_state = LPFC_LINK_UP;
702 /* Unblock fabric iocbs if they are blocked */
703 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
704 del_timer_sync(&phba->fabric_block_timer);
706 vports = lpfc_create_vport_work_array(phba);
708 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
709 lpfc_linkup_port(vports[i]);
710 lpfc_destroy_vport_work_array(phba, vports);
711 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
712 lpfc_issue_clear_la(phba, phba->pport);
718 * This routine handles processing a CLEAR_LA mailbox
719 * command upon completion. It is setup in the LPFC_MBOXQ
720 * as the completion routine when the command is
721 * handed off to the SLI layer.
724 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
726 struct lpfc_vport *vport = pmb->vport;
727 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
728 struct lpfc_sli *psli = &phba->sli;
729 MAILBOX_t *mb = &pmb->mb;
732 /* Since we don't do discovery right now, turn these off here */
733 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
734 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
735 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
737 /* Check for error */
738 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
739 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
740 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
741 "0320 CLEAR_LA mbxStatus error x%x hba "
743 mb->mbxStatus, vport->port_state);
744 phba->link_state = LPFC_HBA_ERROR;
748 if (vport->port_type == LPFC_PHYSICAL_PORT)
749 phba->link_state = LPFC_HBA_READY;
751 spin_lock_irq(&phba->hbalock);
752 psli->sli_flag |= LPFC_PROCESS_LA;
753 control = readl(phba->HCregaddr);
754 control |= HC_LAINT_ENA;
755 writel(control, phba->HCregaddr);
756 readl(phba->HCregaddr); /* flush */
757 spin_unlock_irq(&phba->hbalock);
758 mempool_free(pmb, phba->mbox_mem_pool);
762 /* Device Discovery completes */
763 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
764 "0225 Device Discovery completes\n");
765 mempool_free(pmb, phba->mbox_mem_pool);
767 spin_lock_irq(shost->host_lock);
768 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
769 spin_unlock_irq(shost->host_lock);
771 lpfc_can_disctmo(vport);
773 /* turn on Link Attention interrupts */
775 spin_lock_irq(&phba->hbalock);
776 psli->sli_flag |= LPFC_PROCESS_LA;
777 control = readl(phba->HCregaddr);
778 control |= HC_LAINT_ENA;
779 writel(control, phba->HCregaddr);
780 readl(phba->HCregaddr); /* flush */
781 spin_unlock_irq(&phba->hbalock);
788 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
790 struct lpfc_vport *vport = pmb->vport;
792 if (pmb->mb.mbxStatus)
795 mempool_free(pmb, phba->mbox_mem_pool);
797 if (phba->fc_topology == TOPOLOGY_LOOP &&
798 vport->fc_flag & FC_PUBLIC_LOOP &&
799 !(vport->fc_flag & FC_LBIT)) {
800 /* Need to wait for FAN - use discovery timer
801 * for timeout. port_state is identically
802 * LPFC_LOCAL_CFG_LINK while waiting for FAN
804 lpfc_set_disctmo(vport);
808 /* Start discovery by sending a FLOGI. port_state is identically
809 * LPFC_FLOGI while waiting for FLOGI cmpl
811 if (vport->port_state != LPFC_FLOGI) {
812 lpfc_initial_flogi(vport);
817 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
818 "0306 CONFIG_LINK mbxStatus error x%x "
820 pmb->mb.mbxStatus, vport->port_state);
821 mempool_free(pmb, phba->mbox_mem_pool);
825 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
826 "0200 CONFIG_LINK bad hba state x%x\n",
829 lpfc_issue_clear_la(phba, vport);
834 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
836 MAILBOX_t *mb = &pmb->mb;
837 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
838 struct lpfc_vport *vport = pmb->vport;
841 /* Check for error */
843 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
844 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
845 "0319 READ_SPARAM mbxStatus error x%x "
847 mb->mbxStatus, vport->port_state);
852 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
853 sizeof (struct serv_parm));
854 if (phba->cfg_soft_wwnn)
855 u64_to_wwn(phba->cfg_soft_wwnn,
856 vport->fc_sparam.nodeName.u.wwn);
857 if (phba->cfg_soft_wwpn)
858 u64_to_wwn(phba->cfg_soft_wwpn,
859 vport->fc_sparam.portName.u.wwn);
860 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
861 sizeof(vport->fc_nodename));
862 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
863 sizeof(vport->fc_portname));
864 if (vport->port_type == LPFC_PHYSICAL_PORT) {
865 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
866 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
869 lpfc_mbuf_free(phba, mp->virt, mp->phys);
871 mempool_free(pmb, phba->mbox_mem_pool);
875 pmb->context1 = NULL;
876 lpfc_mbuf_free(phba, mp->virt, mp->phys);
878 lpfc_issue_clear_la(phba, vport);
879 mempool_free(pmb, phba->mbox_mem_pool);
884 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
886 struct lpfc_vport *vport = phba->pport;
887 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
889 struct lpfc_dmabuf *mp;
892 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
893 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
895 spin_lock_irq(&phba->hbalock);
896 switch (la->UlnkSpeed) {
898 phba->fc_linkspeed = LA_1GHZ_LINK;
901 phba->fc_linkspeed = LA_2GHZ_LINK;
904 phba->fc_linkspeed = LA_4GHZ_LINK;
907 phba->fc_linkspeed = LA_8GHZ_LINK;
910 phba->fc_linkspeed = LA_UNKNW_LINK;
914 phba->fc_topology = la->topology;
915 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
917 if (phba->fc_topology == TOPOLOGY_LOOP) {
918 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
920 /* Get Loop Map information */
922 vport->fc_flag |= FC_LBIT;
924 vport->fc_myDID = la->granted_AL_PA;
925 i = la->un.lilpBde64.tus.f.bdeSize;
928 phba->alpa_map[0] = 0;
930 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
941 numalpa = phba->alpa_map[0];
943 while (j < numalpa) {
944 memset(un.pamap, 0, 16);
945 for (k = 1; j < numalpa; k++) {
947 phba->alpa_map[j + 1];
952 /* Link Up Event ALPA map */
953 lpfc_printf_log(phba,
956 "1304 Link Up Event "
957 "ALPA map Data: x%x "
959 un.pa.wd1, un.pa.wd2,
960 un.pa.wd3, un.pa.wd4);
965 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
966 if (phba->max_vpi && phba->cfg_enable_npiv &&
967 (phba->sli_rev == 3))
968 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
970 vport->fc_myDID = phba->fc_pref_DID;
971 vport->fc_flag |= FC_LBIT;
973 spin_unlock_irq(&phba->hbalock);
977 lpfc_read_sparam(phba, sparam_mbox, 0);
978 sparam_mbox->vport = vport;
979 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
980 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
981 if (rc == MBX_NOT_FINISHED) {
982 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
983 lpfc_mbuf_free(phba, mp->virt, mp->phys);
985 mempool_free(sparam_mbox, phba->mbox_mem_pool);
987 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
993 vport->port_state = LPFC_LOCAL_CFG_LINK;
994 lpfc_config_link(phba, cfglink_mbox);
995 cfglink_mbox->vport = vport;
996 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
997 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
998 if (rc != MBX_NOT_FINISHED)
1000 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
1003 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1004 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1005 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
1006 vport->port_state, sparam_mbox, cfglink_mbox);
1007 lpfc_issue_clear_la(phba, vport);
1012 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
1015 struct lpfc_sli *psli = &phba->sli;
1017 lpfc_linkdown(phba);
1019 /* turn on Link Attention interrupts - no CLEAR_LA needed */
1020 spin_lock_irq(&phba->hbalock);
1021 psli->sli_flag |= LPFC_PROCESS_LA;
1022 control = readl(phba->HCregaddr);
1023 control |= HC_LAINT_ENA;
1024 writel(control, phba->HCregaddr);
1025 readl(phba->HCregaddr); /* flush */
1026 spin_unlock_irq(&phba->hbalock);
1030 * This routine handles processing a READ_LA mailbox
1031 * command upon completion. It is setup in the LPFC_MBOXQ
1032 * as the completion routine when the command is
1033 * handed off to the SLI layer.
1036 lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1038 struct lpfc_vport *vport = pmb->vport;
1039 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1041 MAILBOX_t *mb = &pmb->mb;
1042 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1044 /* Unblock ELS traffic */
1045 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1046 /* Check for error */
1047 if (mb->mbxStatus) {
1048 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1049 "1307 READ_LA mbox error x%x state x%x\n",
1050 mb->mbxStatus, vport->port_state);
1051 lpfc_mbx_issue_link_down(phba);
1052 phba->link_state = LPFC_HBA_ERROR;
1053 goto lpfc_mbx_cmpl_read_la_free_mbuf;
1056 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
1058 memcpy(&phba->alpa_map[0], mp->virt, 128);
1060 spin_lock_irq(shost->host_lock);
1062 vport->fc_flag |= FC_BYPASSED_MODE;
1064 vport->fc_flag &= ~FC_BYPASSED_MODE;
1065 spin_unlock_irq(shost->host_lock);
1067 if (((phba->fc_eventTag + 1) < la->eventTag) ||
1068 (phba->fc_eventTag == la->eventTag)) {
1069 phba->fc_stat.LinkMultiEvent++;
1070 if (la->attType == AT_LINK_UP)
1071 if (phba->fc_eventTag != 0)
1072 lpfc_linkdown(phba);
1075 phba->fc_eventTag = la->eventTag;
1077 if (la->attType == AT_LINK_UP) {
1078 phba->fc_stat.LinkUp++;
1079 if (phba->link_flag & LS_LOOPBACK_MODE) {
1080 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1081 "1306 Link Up Event in loop back mode "
1082 "x%x received Data: x%x x%x x%x x%x\n",
1083 la->eventTag, phba->fc_eventTag,
1084 la->granted_AL_PA, la->UlnkSpeed,
1087 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1088 "1303 Link Up Event x%x received "
1089 "Data: x%x x%x x%x x%x\n",
1090 la->eventTag, phba->fc_eventTag,
1091 la->granted_AL_PA, la->UlnkSpeed,
1094 lpfc_mbx_process_link_up(phba, la);
1096 phba->fc_stat.LinkDown++;
1097 if (phba->link_flag & LS_LOOPBACK_MODE) {
1098 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1099 "1308 Link Down Event in loop back mode "
1101 "Data: x%x x%x x%x\n",
1102 la->eventTag, phba->fc_eventTag,
1103 phba->pport->port_state, vport->fc_flag);
1106 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1107 "1305 Link Down Event x%x received "
1108 "Data: x%x x%x x%x\n",
1109 la->eventTag, phba->fc_eventTag,
1110 phba->pport->port_state, vport->fc_flag);
1112 lpfc_mbx_issue_link_down(phba);
1115 lpfc_mbx_cmpl_read_la_free_mbuf:
1116 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1118 mempool_free(pmb, phba->mbox_mem_pool);
1123 * This routine handles processing a REG_LOGIN mailbox
1124 * command upon completion. It is setup in the LPFC_MBOXQ
1125 * as the completion routine when the command is
1126 * handed off to the SLI layer.
1129 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1131 struct lpfc_vport *vport = pmb->vport;
1132 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1133 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
1135 pmb->context1 = NULL;
1137 /* Good status, call state machine */
1138 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
1139 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1141 mempool_free(pmb, phba->mbox_mem_pool);
1142 /* decrement the node reference count held for this callback
1151 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1153 MAILBOX_t *mb = &pmb->mb;
1154 struct lpfc_vport *vport = pmb->vport;
1155 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1157 switch (mb->mbxStatus) {
1161 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1162 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
1166 vport->unreg_vpi_cmpl = VPORT_OK;
1167 mempool_free(pmb, phba->mbox_mem_pool);
1169 * This shost reference might have been taken at the beginning of
1170 * lpfc_vport_delete()
1172 if (vport->load_flag & FC_UNLOADING)
1173 scsi_host_put(shost);
1177 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
1179 struct lpfc_hba *phba = vport->phba;
1183 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1187 lpfc_unreg_vpi(phba, vport->vpi, mbox);
1188 mbox->vport = vport;
1189 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
1190 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
1191 if (rc == MBX_NOT_FINISHED) {
1192 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
1193 "1800 Could not issue unreg_vpi\n");
1194 mempool_free(mbox, phba->mbox_mem_pool);
1195 vport->unreg_vpi_cmpl = VPORT_ERROR;
1200 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1202 struct lpfc_vport *vport = pmb->vport;
1203 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1204 MAILBOX_t *mb = &pmb->mb;
1206 switch (mb->mbxStatus) {
1210 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1211 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
1213 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1214 spin_lock_irq(shost->host_lock);
1215 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1216 spin_unlock_irq(shost->host_lock);
1217 vport->fc_myDID = 0;
1221 vport->num_disc_nodes = 0;
1222 /* go thru NPR list and issue ELS PLOGIs */
1223 if (vport->fc_npr_cnt)
1224 lpfc_els_disc_plogi(vport);
1226 if (!vport->num_disc_nodes) {
1227 spin_lock_irq(shost->host_lock);
1228 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1229 spin_unlock_irq(shost->host_lock);
1230 lpfc_can_disctmo(vport);
1232 vport->port_state = LPFC_VPORT_READY;
1235 mempool_free(pmb, phba->mbox_mem_pool);
1240 * This routine handles processing a Fabric REG_LOGIN mailbox
1241 * command upon completion. It is setup in the LPFC_MBOXQ
1242 * as the completion routine when the command is
1243 * handed off to the SLI layer.
1246 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1248 struct lpfc_vport *vport = pmb->vport;
1249 MAILBOX_t *mb = &pmb->mb;
1250 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1251 struct lpfc_nodelist *ndlp;
1252 struct lpfc_vport **vports;
1255 ndlp = (struct lpfc_nodelist *) pmb->context2;
1256 pmb->context1 = NULL;
1257 pmb->context2 = NULL;
1258 if (mb->mbxStatus) {
1259 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1261 mempool_free(pmb, phba->mbox_mem_pool);
1263 if (phba->fc_topology == TOPOLOGY_LOOP) {
1264 /* FLOGI failed, use loop map to make discovery list */
1265 lpfc_disc_list_loopmap(vport);
1267 /* Start discovery */
1268 lpfc_disc_start(vport);
1269 /* Decrement the reference count to ndlp after the
1270 * reference to the ndlp are done.
1276 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1277 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1278 "0258 Register Fabric login error: 0x%x\n",
1280 /* Decrement the reference count to ndlp after the reference
1281 * to the ndlp are done.
1287 ndlp->nlp_rpi = mb->un.varWords[0];
1288 ndlp->nlp_type |= NLP_FABRIC;
1289 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1291 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
1292 vports = lpfc_create_vport_work_array(phba);
1295 i <= phba->max_vpi && vports[i] != NULL;
1297 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
1299 if (phba->fc_topology == TOPOLOGY_LOOP) {
1300 lpfc_vport_set_state(vports[i],
1304 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
1305 lpfc_initial_fdisc(vports[i]);
1307 lpfc_vport_set_state(vports[i],
1308 FC_VPORT_NO_FABRIC_SUPP);
1309 lpfc_printf_vlog(vport, KERN_ERR,
1312 "Fabric support\n");
1315 lpfc_destroy_vport_work_array(phba, vports);
1316 lpfc_do_scr_ns_plogi(phba, vport);
1319 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1321 mempool_free(pmb, phba->mbox_mem_pool);
1323 /* Drop the reference count from the mbox at the end after
1324 * all the current reference to the ndlp have been done.
1331 * This routine handles processing a NameServer REG_LOGIN mailbox
1332 * command upon completion. It is setup in the LPFC_MBOXQ
1333 * as the completion routine when the command is
1334 * handed off to the SLI layer.
1337 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1339 MAILBOX_t *mb = &pmb->mb;
1340 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1341 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
1342 struct lpfc_vport *vport = pmb->vport;
1344 if (mb->mbxStatus) {
1346 /* decrement the node reference count held for this
1347 * callback function.
1350 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1352 mempool_free(pmb, phba->mbox_mem_pool);
1354 /* If no other thread is using the ndlp, free it */
1355 lpfc_nlp_not_used(ndlp);
1357 if (phba->fc_topology == TOPOLOGY_LOOP) {
1359 * RegLogin failed, use loop map to make discovery
1362 lpfc_disc_list_loopmap(vport);
1364 /* Start discovery */
1365 lpfc_disc_start(vport);
1368 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1369 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1370 "0260 Register NameServer error: 0x%x\n",
1375 pmb->context1 = NULL;
1377 ndlp->nlp_rpi = mb->un.varWords[0];
1378 ndlp->nlp_type |= NLP_FABRIC;
1379 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1381 if (vport->port_state < LPFC_VPORT_READY) {
1382 /* Link up discovery requires Fabric registration. */
1383 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
1384 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
1385 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
1386 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
1387 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
1389 /* Issue SCR just before NameServer GID_FT Query */
1390 lpfc_issue_els_scr(vport, SCR_DID, 0);
1393 vport->fc_ns_retry = 0;
1394 /* Good status, issue CT Request to NameServer */
1395 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
1396 /* Cannot issue NameServer Query, so finish up discovery */
1400 /* decrement the node reference count held for this
1401 * callback function.
1404 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1406 mempool_free(pmb, phba->mbox_mem_pool);
1412 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1414 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1415 struct fc_rport *rport;
1416 struct lpfc_rport_data *rdata;
1417 struct fc_rport_identifiers rport_ids;
1418 struct lpfc_hba *phba = vport->phba;
1420 /* Remote port has reappeared. Re-register w/ FC transport */
1421 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1422 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1423 rport_ids.port_id = ndlp->nlp_DID;
1424 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1427 * We leave our node pointer in rport->dd_data when we unregister a
1428 * FCP target port. But fc_remote_port_add zeros the space to which
1429 * rport->dd_data points. So, if we're reusing a previously
1430 * registered port, drop the reference that we took the last time we
1431 * registered the port.
1433 if (ndlp->rport && ndlp->rport->dd_data &&
1434 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
1437 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
1438 "rport add: did:x%x flg:x%x type x%x",
1439 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1441 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
1442 if (!rport || !get_device(&rport->dev)) {
1443 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1444 "Warning: fc_remote_port_add failed\n");
1448 /* initialize static port data */
1449 rport->maxframe_size = ndlp->nlp_maxframe;
1450 rport->supported_classes = ndlp->nlp_class_sup;
1451 rdata = rport->dd_data;
1452 rdata->pnode = lpfc_nlp_get(ndlp);
1454 if (ndlp->nlp_type & NLP_FCP_TARGET)
1455 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1456 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1457 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1460 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1461 fc_remote_port_rolechg(rport, rport_ids.roles);
1463 if ((rport->scsi_target_id != -1) &&
1464 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
1465 ndlp->nlp_sid = rport->scsi_target_id;
1471 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
1473 struct fc_rport *rport = ndlp->rport;
1475 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
1476 "rport delete: did:x%x flg:x%x type x%x",
1477 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1479 fc_remote_port_delete(rport);
1485 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
1487 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1489 spin_lock_irq(shost->host_lock);
1491 case NLP_STE_UNUSED_NODE:
1492 vport->fc_unused_cnt += count;
1494 case NLP_STE_PLOGI_ISSUE:
1495 vport->fc_plogi_cnt += count;
1497 case NLP_STE_ADISC_ISSUE:
1498 vport->fc_adisc_cnt += count;
1500 case NLP_STE_REG_LOGIN_ISSUE:
1501 vport->fc_reglogin_cnt += count;
1503 case NLP_STE_PRLI_ISSUE:
1504 vport->fc_prli_cnt += count;
1506 case NLP_STE_UNMAPPED_NODE:
1507 vport->fc_unmap_cnt += count;
1509 case NLP_STE_MAPPED_NODE:
1510 vport->fc_map_cnt += count;
1512 case NLP_STE_NPR_NODE:
1513 vport->fc_npr_cnt += count;
1516 spin_unlock_irq(shost->host_lock);
1520 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1521 int old_state, int new_state)
1523 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1525 if (new_state == NLP_STE_UNMAPPED_NODE) {
1526 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1527 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1528 ndlp->nlp_type |= NLP_FC_NODE;
1530 if (new_state == NLP_STE_MAPPED_NODE)
1531 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1532 if (new_state == NLP_STE_NPR_NODE)
1533 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
1535 /* Transport interface */
1536 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
1537 old_state == NLP_STE_UNMAPPED_NODE)) {
1538 vport->phba->nport_event_cnt++;
1539 lpfc_unregister_remote_port(ndlp);
1542 if (new_state == NLP_STE_MAPPED_NODE ||
1543 new_state == NLP_STE_UNMAPPED_NODE) {
1544 vport->phba->nport_event_cnt++;
1546 * Tell the fc transport about the port, if we haven't
1547 * already. If we have, and it's a scsi entity, be
1548 * sure to unblock any attached scsi devices
1550 lpfc_register_remote_port(vport, ndlp);
1553 * if we added to Mapped list, but the remote port
1554 * registration failed or assigned a target id outside
1555 * our presentable range - move the node to the
1558 if (new_state == NLP_STE_MAPPED_NODE &&
1560 ndlp->rport->scsi_target_id == -1 ||
1561 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
1562 spin_lock_irq(shost->host_lock);
1563 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
1564 spin_unlock_irq(shost->host_lock);
1565 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1570 lpfc_nlp_state_name(char *buffer, size_t size, int state)
1572 static char *states[] = {
1573 [NLP_STE_UNUSED_NODE] = "UNUSED",
1574 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
1575 [NLP_STE_ADISC_ISSUE] = "ADISC",
1576 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
1577 [NLP_STE_PRLI_ISSUE] = "PRLI",
1578 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
1579 [NLP_STE_MAPPED_NODE] = "MAPPED",
1580 [NLP_STE_NPR_NODE] = "NPR",
1583 if (state < NLP_STE_MAX_STATE && states[state])
1584 strlcpy(buffer, states[state], size);
1586 snprintf(buffer, size, "unknown (%d)", state);
1591 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1594 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1595 int old_state = ndlp->nlp_state;
1596 char name1[16], name2[16];
1598 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1599 "0904 NPort state transition x%06x, %s -> %s\n",
1601 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
1602 lpfc_nlp_state_name(name2, sizeof(name2), state));
1604 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
1605 "node statechg did:x%x old:%d ste:%d",
1606 ndlp->nlp_DID, old_state, state);
1608 if (old_state == NLP_STE_NPR_NODE &&
1609 state != NLP_STE_NPR_NODE)
1610 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1611 if (old_state == NLP_STE_UNMAPPED_NODE) {
1612 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1613 ndlp->nlp_type &= ~NLP_FC_NODE;
1616 if (list_empty(&ndlp->nlp_listp)) {
1617 spin_lock_irq(shost->host_lock);
1618 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
1619 spin_unlock_irq(shost->host_lock);
1620 } else if (old_state)
1621 lpfc_nlp_counters(vport, old_state, -1);
1623 ndlp->nlp_state = state;
1624 lpfc_nlp_counters(vport, state, 1);
1625 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
1629 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1631 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1633 if (list_empty(&ndlp->nlp_listp)) {
1634 spin_lock_irq(shost->host_lock);
1635 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
1636 spin_unlock_irq(shost->host_lock);
1641 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1643 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1645 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1646 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
1647 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
1648 spin_lock_irq(shost->host_lock);
1649 list_del_init(&ndlp->nlp_listp);
1650 spin_unlock_irq(shost->host_lock);
1651 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
1652 NLP_STE_UNUSED_NODE);
1656 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1658 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1659 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
1660 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
1661 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
1662 NLP_STE_UNUSED_NODE);
1665 struct lpfc_nodelist *
1666 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1669 struct lpfc_hba *phba = vport->phba;
1671 unsigned long flags;
1676 spin_lock_irqsave(&phba->ndlp_lock, flags);
1677 /* The ndlp should not be in memory free mode */
1678 if (NLP_CHK_FREE_REQ(ndlp)) {
1679 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
1680 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
1681 "0277 lpfc_enable_node: ndlp:x%p "
1682 "usgmap:x%x refcnt:%d\n",
1683 (void *)ndlp, ndlp->nlp_usg_map,
1684 atomic_read(&ndlp->kref.refcount));
1687 /* The ndlp should not already be in active mode */
1688 if (NLP_CHK_NODE_ACT(ndlp)) {
1689 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
1690 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
1691 "0278 lpfc_enable_node: ndlp:x%p "
1692 "usgmap:x%x refcnt:%d\n",
1693 (void *)ndlp, ndlp->nlp_usg_map,
1694 atomic_read(&ndlp->kref.refcount));
1698 /* Keep the original DID */
1699 did = ndlp->nlp_DID;
1701 /* re-initialize ndlp except of ndlp linked list pointer */
1702 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
1703 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
1704 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
1705 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
1706 init_timer(&ndlp->nlp_delayfunc);
1707 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
1708 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
1709 ndlp->nlp_DID = did;
1710 ndlp->vport = vport;
1711 ndlp->nlp_sid = NLP_NO_SID;
1712 /* ndlp management re-initialize */
1713 kref_init(&ndlp->kref);
1714 NLP_INT_NODE_ACT(ndlp);
1716 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
1718 if (state != NLP_STE_UNUSED_NODE)
1719 lpfc_nlp_set_state(vport, ndlp, state);
1721 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
1722 "node enable: did:x%x",
1723 ndlp->nlp_DID, 0, 0);
1728 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1731 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
1732 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
1733 * the ndlp from the vport. The ndlp marked as UNUSED on the list
1734 * until ALL other outstanding threads have completed. We check
1735 * that the ndlp not already in the UNUSED state before we proceed.
1737 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
1739 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
1745 * Start / ReStart rescue timer for Discovery / RSCN handling
1748 lpfc_set_disctmo(struct lpfc_vport *vport)
1750 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1751 struct lpfc_hba *phba = vport->phba;
1754 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
1755 /* For FAN, timeout should be greater then edtov */
1756 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1758 /* Normal discovery timeout should be > then ELS/CT timeout
1759 * FC spec states we need 3 * ratov for CT requests
1761 tmo = ((phba->fc_ratov * 3) + 3);
1765 if (!timer_pending(&vport->fc_disctmo)) {
1766 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1767 "set disc timer: tmo:x%x state:x%x flg:x%x",
1768 tmo, vport->port_state, vport->fc_flag);
1771 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
1772 spin_lock_irq(shost->host_lock);
1773 vport->fc_flag |= FC_DISC_TMO;
1774 spin_unlock_irq(shost->host_lock);
1776 /* Start Discovery Timer state <hba_state> */
1777 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1778 "0247 Start Discovery Timer state x%x "
1779 "Data: x%x x%lx x%x x%x\n",
1780 vport->port_state, tmo,
1781 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
1782 vport->fc_adisc_cnt);
1788 * Cancel rescue timer for Discovery / RSCN handling
1791 lpfc_can_disctmo(struct lpfc_vport *vport)
1793 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1794 unsigned long iflags;
1796 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1797 "can disc timer: state:x%x rtry:x%x flg:x%x",
1798 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
1800 /* Turn off discovery timer if its running */
1801 if (vport->fc_flag & FC_DISC_TMO) {
1802 spin_lock_irqsave(shost->host_lock, iflags);
1803 vport->fc_flag &= ~FC_DISC_TMO;
1804 spin_unlock_irqrestore(shost->host_lock, iflags);
1805 del_timer_sync(&vport->fc_disctmo);
1806 spin_lock_irqsave(&vport->work_port_lock, iflags);
1807 vport->work_port_events &= ~WORKER_DISC_TMO;
1808 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
1811 /* Cancel Discovery Timer state <hba_state> */
1812 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1813 "0248 Cancel Discovery Timer state x%x "
1814 "Data: x%x x%x x%x\n",
1815 vport->port_state, vport->fc_flag,
1816 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
1821 * Check specified ring for outstanding IOCB on the SLI queue
1822 * Return true if iocb matches the specified nport
1825 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
1826 struct lpfc_sli_ring *pring,
1827 struct lpfc_iocbq *iocb,
1828 struct lpfc_nodelist *ndlp)
1830 struct lpfc_sli *psli = &phba->sli;
1831 IOCB_t *icmd = &iocb->iocb;
1832 struct lpfc_vport *vport = ndlp->vport;
1834 if (iocb->vport != vport)
1837 if (pring->ringno == LPFC_ELS_RING) {
1838 switch (icmd->ulpCommand) {
1839 case CMD_GEN_REQUEST64_CR:
1840 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
1842 case CMD_ELS_REQUEST64_CR:
1843 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1845 case CMD_XMIT_ELS_RSP64_CX:
1846 if (iocb->context1 == (uint8_t *) ndlp)
1849 } else if (pring->ringno == psli->extra_ring) {
1851 } else if (pring->ringno == psli->fcp_ring) {
1852 /* Skip match check if waiting to relogin to FCP target */
1853 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
1854 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
1857 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
1860 } else if (pring->ringno == psli->next_ring) {
1867 * Free resources / clean up outstanding I/Os
1868 * associated with nlp_rpi in the LPFC_NODELIST entry.
1871 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
1873 LIST_HEAD(completions);
1874 struct lpfc_sli *psli;
1875 struct lpfc_sli_ring *pring;
1876 struct lpfc_iocbq *iocb, *next_iocb;
1880 lpfc_fabric_abort_nport(ndlp);
1883 * Everything that matches on txcmplq will be returned
1884 * by firmware with a no rpi error.
1887 rpi = ndlp->nlp_rpi;
1889 /* Now process each ring */
1890 for (i = 0; i < psli->num_rings; i++) {
1891 pring = &psli->ring[i];
1893 spin_lock_irq(&phba->hbalock);
1894 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
1897 * Check to see if iocb matches the nport we are
1900 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
1902 /* It matches, so deque and call compl
1904 list_move_tail(&iocb->list,
1909 spin_unlock_irq(&phba->hbalock);
1913 while (!list_empty(&completions)) {
1914 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
1915 list_del_init(&iocb->list);
1917 if (!iocb->iocb_cmpl)
1918 lpfc_sli_release_iocbq(phba, iocb);
1921 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1922 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
1923 (iocb->iocb_cmpl)(phba, iocb, iocb);
1931 * Free rpi associated with LPFC_NODELIST entry.
1932 * This routine is called from lpfc_freenode(), when we are removing
1933 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1934 * LOGO that completes successfully, and we are waiting to PLOGI back
1935 * to the remote NPort. In addition, it is called after we receive
1936 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1937 * we are waiting to PLOGI back to the remote NPort.
1940 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1942 struct lpfc_hba *phba = vport->phba;
1946 if (ndlp->nlp_rpi) {
1947 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1949 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
1950 mbox->vport = vport;
1951 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1952 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
1953 if (rc == MBX_NOT_FINISHED)
1954 mempool_free(mbox, phba->mbox_mem_pool);
1956 lpfc_no_rpi(phba, ndlp);
1964 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
1966 struct lpfc_hba *phba = vport->phba;
1970 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1972 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
1973 mbox->vport = vport;
1974 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1975 mbox->context1 = NULL;
1976 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
1977 if (rc == MBX_NOT_FINISHED) {
1978 mempool_free(mbox, phba->mbox_mem_pool);
1984 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
1986 struct lpfc_hba *phba = vport->phba;
1990 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1992 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
1993 mbox->vport = vport;
1994 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1995 mbox->context1 = NULL;
1996 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
1997 if (rc == MBX_NOT_FINISHED) {
1998 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
1999 "1815 Could not issue "
2000 "unreg_did (default rpis)\n");
2001 mempool_free(mbox, phba->mbox_mem_pool);
2007 * Free resources associated with LPFC_NODELIST entry
2008 * so it can be freed.
2011 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2013 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2014 struct lpfc_hba *phba = vport->phba;
2015 LPFC_MBOXQ_t *mb, *nextmb;
2016 struct lpfc_dmabuf *mp;
2018 /* Cleanup node for NPort <nlp_DID> */
2019 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2020 "0900 Cleanup node for NPort x%x "
2021 "Data: x%x x%x x%x\n",
2022 ndlp->nlp_DID, ndlp->nlp_flag,
2023 ndlp->nlp_state, ndlp->nlp_rpi);
2024 if (NLP_CHK_FREE_REQ(ndlp)) {
2025 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2026 "0280 lpfc_cleanup_node: ndlp:x%p "
2027 "usgmap:x%x refcnt:%d\n",
2028 (void *)ndlp, ndlp->nlp_usg_map,
2029 atomic_read(&ndlp->kref.refcount));
2030 lpfc_dequeue_node(vport, ndlp);
2032 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2033 "0281 lpfc_cleanup_node: ndlp:x%p "
2034 "usgmap:x%x refcnt:%d\n",
2035 (void *)ndlp, ndlp->nlp_usg_map,
2036 atomic_read(&ndlp->kref.refcount));
2037 lpfc_disable_node(vport, ndlp);
2040 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
2041 if ((mb = phba->sli.mbox_active)) {
2042 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
2043 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
2044 mb->context2 = NULL;
2045 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2049 spin_lock_irq(&phba->hbalock);
2050 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
2051 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
2052 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
2053 mp = (struct lpfc_dmabuf *) (mb->context1);
2055 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
2058 list_del(&mb->list);
2059 mempool_free(mb, phba->mbox_mem_pool);
2060 /* We shall not invoke the lpfc_nlp_put to decrement
2061 * the ndlp reference count as we are in the process
2062 * of lpfc_nlp_release.
2066 spin_unlock_irq(&phba->hbalock);
2068 lpfc_els_abort(phba, ndlp);
2070 spin_lock_irq(shost->host_lock);
2071 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
2072 spin_unlock_irq(shost->host_lock);
2074 ndlp->nlp_last_elscmd = 0;
2075 del_timer_sync(&ndlp->nlp_delayfunc);
2077 list_del_init(&ndlp->els_retry_evt.evt_listp);
2078 list_del_init(&ndlp->dev_loss_evt.evt_listp);
2080 lpfc_unreg_rpi(vport, ndlp);
2086 * Check to see if we can free the nlp back to the freelist.
2087 * If we are in the middle of using the nlp in the discovery state
2088 * machine, defer the free till we reach the end of the state machine.
2091 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2093 struct lpfc_hba *phba = vport->phba;
2094 struct lpfc_rport_data *rdata;
2098 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2099 if (ndlp->nlp_flag & NLP_DEFER_RM && !ndlp->nlp_rpi) {
2100 /* For this case we need to cleanup the default rpi
2101 * allocated by the firmware.
2103 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
2105 rc = lpfc_reg_login(phba, vport->vpi, ndlp->nlp_DID,
2106 (uint8_t *) &vport->fc_sparam, mbox, 0);
2108 mempool_free(mbox, phba->mbox_mem_pool);
2111 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
2112 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
2113 mbox->vport = vport;
2114 mbox->context2 = NULL;
2115 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2116 if (rc == MBX_NOT_FINISHED) {
2117 mempool_free(mbox, phba->mbox_mem_pool);
2122 lpfc_cleanup_node(vport, ndlp);
2125 * We can get here with a non-NULL ndlp->rport because when we
2126 * unregister a rport we don't break the rport/node linkage. So if we
2127 * do, make sure we don't leaving any dangling pointers behind.
2130 rdata = ndlp->rport->dd_data;
2131 rdata->pnode = NULL;
2137 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2140 D_ID mydid, ndlpdid, matchdid;
2142 if (did == Bcast_DID)
2145 /* First check for Direct match */
2146 if (ndlp->nlp_DID == did)
2149 /* Next check for area/domain identically equals 0 match */
2150 mydid.un.word = vport->fc_myDID;
2151 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2155 matchdid.un.word = did;
2156 ndlpdid.un.word = ndlp->nlp_DID;
2157 if (matchdid.un.b.id == ndlpdid.un.b.id) {
2158 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
2159 (mydid.un.b.area == matchdid.un.b.area)) {
2160 if ((ndlpdid.un.b.domain == 0) &&
2161 (ndlpdid.un.b.area == 0)) {
2162 if (ndlpdid.un.b.id)
2168 matchdid.un.word = ndlp->nlp_DID;
2169 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
2170 (mydid.un.b.area == ndlpdid.un.b.area)) {
2171 if ((matchdid.un.b.domain == 0) &&
2172 (matchdid.un.b.area == 0)) {
2173 if (matchdid.un.b.id)
2181 /* Search for a nodelist entry */
2182 static struct lpfc_nodelist *
2183 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
2185 struct lpfc_nodelist *ndlp;
2188 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2189 if (lpfc_matchdid(vport, ndlp, did)) {
2190 data1 = (((uint32_t) ndlp->nlp_state << 24) |
2191 ((uint32_t) ndlp->nlp_xri << 16) |
2192 ((uint32_t) ndlp->nlp_type << 8) |
2193 ((uint32_t) ndlp->nlp_rpi & 0xff));
2194 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2195 "0929 FIND node DID "
2196 "Data: x%p x%x x%x x%x\n",
2197 ndlp, ndlp->nlp_DID,
2198 ndlp->nlp_flag, data1);
2203 /* FIND node did <did> NOT FOUND */
2204 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2205 "0932 FIND node did x%x NOT FOUND.\n", did);
2209 struct lpfc_nodelist *
2210 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
2212 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2213 struct lpfc_nodelist *ndlp;
2215 spin_lock_irq(shost->host_lock);
2216 ndlp = __lpfc_findnode_did(vport, did);
2217 spin_unlock_irq(shost->host_lock);
2221 struct lpfc_nodelist *
2222 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
2224 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2225 struct lpfc_nodelist *ndlp;
2227 ndlp = lpfc_findnode_did(vport, did);
2229 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
2230 lpfc_rscn_payload_check(vport, did) == 0)
2232 ndlp = (struct lpfc_nodelist *)
2233 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
2236 lpfc_nlp_init(vport, ndlp, did);
2237 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2238 spin_lock_irq(shost->host_lock);
2239 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2240 spin_unlock_irq(shost->host_lock);
2242 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2243 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
2246 spin_lock_irq(shost->host_lock);
2247 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2248 spin_unlock_irq(shost->host_lock);
2252 if ((vport->fc_flag & FC_RSCN_MODE) &&
2253 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
2254 if (lpfc_rscn_payload_check(vport, did)) {
2255 /* If we've already recieved a PLOGI from this NPort
2256 * we don't need to try to discover it again.
2258 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
2261 spin_lock_irq(shost->host_lock);
2262 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2263 spin_unlock_irq(shost->host_lock);
2265 /* Since this node is marked for discovery,
2266 * delay timeout is not needed.
2268 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2272 /* If we've already recieved a PLOGI from this NPort,
2273 * or we are already in the process of discovery on it,
2274 * we don't need to try to discover it again.
2276 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
2277 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
2278 ndlp->nlp_flag & NLP_RCV_PLOGI)
2280 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2281 spin_lock_irq(shost->host_lock);
2282 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2283 spin_unlock_irq(shost->host_lock);
2288 /* Build a list of nodes to discover based on the loopmap */
2290 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
2292 struct lpfc_hba *phba = vport->phba;
2294 uint32_t alpa, index;
2296 if (!lpfc_is_link_up(phba))
2299 if (phba->fc_topology != TOPOLOGY_LOOP)
2302 /* Check for loop map present or not */
2303 if (phba->alpa_map[0]) {
2304 for (j = 1; j <= phba->alpa_map[0]; j++) {
2305 alpa = phba->alpa_map[j];
2306 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
2308 lpfc_setup_disc_node(vport, alpa);
2311 /* No alpamap, so try all alpa's */
2312 for (j = 0; j < FC_MAXLOOP; j++) {
2313 /* If cfg_scan_down is set, start from highest
2314 * ALPA (0xef) to lowest (0x1).
2316 if (vport->cfg_scan_down)
2319 index = FC_MAXLOOP - j - 1;
2320 alpa = lpfcAlpaArray[index];
2321 if ((vport->fc_myDID & 0xff) == alpa)
2323 lpfc_setup_disc_node(vport, alpa);
2330 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
2333 struct lpfc_sli *psli = &phba->sli;
2334 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
2335 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
2336 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
2340 * if it's not a physical port or if we already send
2341 * clear_la then don't send it.
2343 if ((phba->link_state >= LPFC_CLEAR_LA) ||
2344 (vport->port_type != LPFC_PHYSICAL_PORT))
2347 /* Link up discovery */
2348 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
2349 phba->link_state = LPFC_CLEAR_LA;
2350 lpfc_clear_la(phba, mbox);
2351 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2352 mbox->vport = vport;
2353 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2354 if (rc == MBX_NOT_FINISHED) {
2355 mempool_free(mbox, phba->mbox_mem_pool);
2356 lpfc_disc_flush_list(vport);
2357 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2358 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2359 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2360 phba->link_state = LPFC_HBA_ERROR;
2365 /* Reg_vpi to tell firmware to resume normal operations */
2367 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
2369 LPFC_MBOXQ_t *regvpimbox;
2371 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2373 lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, regvpimbox);
2374 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
2375 regvpimbox->vport = vport;
2376 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
2377 == MBX_NOT_FINISHED) {
2378 mempool_free(regvpimbox, phba->mbox_mem_pool);
2383 /* Start Link up / RSCN discovery on NPR nodes */
2385 lpfc_disc_start(struct lpfc_vport *vport)
2387 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2388 struct lpfc_hba *phba = vport->phba;
2390 uint32_t clear_la_pending;
2393 if (!lpfc_is_link_up(phba))
2396 if (phba->link_state == LPFC_CLEAR_LA)
2397 clear_la_pending = 1;
2399 clear_la_pending = 0;
2401 if (vport->port_state < LPFC_VPORT_READY)
2402 vport->port_state = LPFC_DISC_AUTH;
2404 lpfc_set_disctmo(vport);
2406 if (vport->fc_prevDID == vport->fc_myDID)
2411 vport->fc_prevDID = vport->fc_myDID;
2412 vport->num_disc_nodes = 0;
2414 /* Start Discovery state <hba_state> */
2415 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2416 "0202 Start Discovery hba state x%x "
2417 "Data: x%x x%x x%x\n",
2418 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
2419 vport->fc_adisc_cnt);
2421 /* First do ADISCs - if any */
2422 num_sent = lpfc_els_disc_adisc(vport);
2428 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
2429 * continue discovery.
2431 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2432 !(vport->fc_flag & FC_PT2PT) &&
2433 !(vport->fc_flag & FC_RSCN_MODE)) {
2434 lpfc_issue_reg_vpi(phba, vport);
2439 * For SLI2, we need to set port_state to READY and continue
2442 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
2443 /* If we get here, there is nothing to ADISC */
2444 if (vport->port_type == LPFC_PHYSICAL_PORT)
2445 lpfc_issue_clear_la(phba, vport);
2447 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2448 vport->num_disc_nodes = 0;
2449 /* go thru NPR nodes and issue ELS PLOGIs */
2450 if (vport->fc_npr_cnt)
2451 lpfc_els_disc_plogi(vport);
2453 if (!vport->num_disc_nodes) {
2454 spin_lock_irq(shost->host_lock);
2455 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2456 spin_unlock_irq(shost->host_lock);
2457 lpfc_can_disctmo(vport);
2460 vport->port_state = LPFC_VPORT_READY;
2462 /* Next do PLOGIs - if any */
2463 num_sent = lpfc_els_disc_plogi(vport);
2468 if (vport->fc_flag & FC_RSCN_MODE) {
2469 /* Check to see if more RSCNs came in while we
2470 * were processing this one.
2472 if ((vport->fc_rscn_id_cnt == 0) &&
2473 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
2474 spin_lock_irq(shost->host_lock);
2475 vport->fc_flag &= ~FC_RSCN_MODE;
2476 spin_unlock_irq(shost->host_lock);
2477 lpfc_can_disctmo(vport);
2479 lpfc_els_handle_rscn(vport);
2486 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2487 * ring the match the sppecified nodelist.
2490 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
2492 LIST_HEAD(completions);
2493 struct lpfc_sli *psli;
2495 struct lpfc_iocbq *iocb, *next_iocb;
2496 struct lpfc_sli_ring *pring;
2499 pring = &psli->ring[LPFC_ELS_RING];
2501 /* Error matching iocb on txq or txcmplq
2502 * First check the txq.
2504 spin_lock_irq(&phba->hbalock);
2505 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2506 if (iocb->context1 != ndlp) {
2510 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2511 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2513 list_move_tail(&iocb->list, &completions);
2518 /* Next check the txcmplq */
2519 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2520 if (iocb->context1 != ndlp) {
2524 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
2525 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
2526 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
2529 spin_unlock_irq(&phba->hbalock);
2531 while (!list_empty(&completions)) {
2532 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
2533 list_del_init(&iocb->list);
2535 if (!iocb->iocb_cmpl)
2536 lpfc_sli_release_iocbq(phba, iocb);
2539 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2540 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2541 (iocb->iocb_cmpl) (phba, iocb, iocb);
2547 lpfc_disc_flush_list(struct lpfc_vport *vport)
2549 struct lpfc_nodelist *ndlp, *next_ndlp;
2550 struct lpfc_hba *phba = vport->phba;
2552 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
2553 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
2555 if (!NLP_CHK_NODE_ACT(ndlp))
2557 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
2558 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
2559 lpfc_free_tx(phba, ndlp);
2566 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
2568 lpfc_els_flush_rscn(vport);
2569 lpfc_els_flush_cmd(vport);
2570 lpfc_disc_flush_list(vport);
2573 /*****************************************************************************/
2575 * NAME: lpfc_disc_timeout
2577 * FUNCTION: Fibre Channel driver discovery timeout routine.
2579 * EXECUTION ENVIRONMENT: interrupt only
2587 /*****************************************************************************/
2589 lpfc_disc_timeout(unsigned long ptr)
2591 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
2592 struct lpfc_hba *phba = vport->phba;
2593 uint32_t tmo_posted;
2594 unsigned long flags = 0;
2596 if (unlikely(!phba))
2599 spin_lock_irqsave(&vport->work_port_lock, flags);
2600 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
2602 vport->work_port_events |= WORKER_DISC_TMO;
2603 spin_unlock_irqrestore(&vport->work_port_lock, flags);
2606 lpfc_worker_wake_up(phba);
2611 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
2613 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2614 struct lpfc_hba *phba = vport->phba;
2615 struct lpfc_sli *psli = &phba->sli;
2616 struct lpfc_nodelist *ndlp, *next_ndlp;
2617 LPFC_MBOXQ_t *initlinkmbox;
2618 int rc, clrlaerr = 0;
2620 if (!(vport->fc_flag & FC_DISC_TMO))
2623 spin_lock_irq(shost->host_lock);
2624 vport->fc_flag &= ~FC_DISC_TMO;
2625 spin_unlock_irq(shost->host_lock);
2627 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2628 "disc timeout: state:x%x rtry:x%x flg:x%x",
2629 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
2631 switch (vport->port_state) {
2633 case LPFC_LOCAL_CFG_LINK:
2634 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
2638 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
2639 "0221 FAN timeout\n");
2640 /* Start discovery by sending FLOGI, clean up old rpis */
2641 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
2643 if (!NLP_CHK_NODE_ACT(ndlp))
2645 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
2647 if (ndlp->nlp_type & NLP_FABRIC) {
2648 /* Clean up the ndlp on Fabric connections */
2649 lpfc_drop_node(vport, ndlp);
2651 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
2652 /* Fail outstanding IO now since device
2653 * is marked for PLOGI.
2655 lpfc_unreg_rpi(vport, ndlp);
2658 if (vport->port_state != LPFC_FLOGI) {
2659 lpfc_initial_flogi(vport);
2666 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
2667 /* Initial FLOGI timeout */
2668 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2669 "0222 Initial %s timeout\n",
2670 vport->vpi ? "FDISC" : "FLOGI");
2672 /* Assume no Fabric and go on with discovery.
2673 * Check for outstanding ELS FLOGI to abort.
2676 /* FLOGI failed, so just use loop map to make discovery list */
2677 lpfc_disc_list_loopmap(vport);
2679 /* Start discovery */
2680 lpfc_disc_start(vport);
2683 case LPFC_FABRIC_CFG_LINK:
2684 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2686 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2687 "0223 Timeout while waiting for "
2688 "NameServer login\n");
2689 /* Next look for NameServer ndlp */
2690 ndlp = lpfc_findnode_did(vport, NameServer_DID);
2691 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
2692 lpfc_els_abort(phba, ndlp);
2694 /* ReStart discovery */
2698 /* Check for wait for NameServer Rsp timeout */
2699 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2700 "0224 NameServer Query timeout "
2702 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
2704 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2705 /* Try it one more time */
2706 vport->fc_ns_retry++;
2707 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
2708 vport->fc_ns_retry, 0);
2712 vport->fc_ns_retry = 0;
2716 * Discovery is over.
2717 * set port_state to PORT_READY if SLI2.
2718 * cmpl_reg_vpi will set port_state to READY for SLI3.
2720 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2721 lpfc_issue_reg_vpi(phba, vport);
2722 else { /* NPIV Not enabled */
2723 lpfc_issue_clear_la(phba, vport);
2724 vport->port_state = LPFC_VPORT_READY;
2727 /* Setup and issue mailbox INITIALIZE LINK command */
2728 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2729 if (!initlinkmbox) {
2730 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2731 "0206 Device Discovery "
2732 "completion error\n");
2733 phba->link_state = LPFC_HBA_ERROR;
2737 lpfc_linkdown(phba);
2738 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2739 phba->cfg_link_speed);
2740 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
2741 initlinkmbox->vport = vport;
2742 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2743 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
2744 lpfc_set_loopback_flag(phba);
2745 if (rc == MBX_NOT_FINISHED)
2746 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2750 case LPFC_DISC_AUTH:
2751 /* Node Authentication timeout */
2752 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2753 "0227 Node Authentication timeout\n");
2754 lpfc_disc_flush_list(vport);
2757 * set port_state to PORT_READY if SLI2.
2758 * cmpl_reg_vpi will set port_state to READY for SLI3.
2760 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2761 lpfc_issue_reg_vpi(phba, vport);
2762 else { /* NPIV Not enabled */
2763 lpfc_issue_clear_la(phba, vport);
2764 vport->port_state = LPFC_VPORT_READY;
2768 case LPFC_VPORT_READY:
2769 if (vport->fc_flag & FC_RSCN_MODE) {
2770 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2771 "0231 RSCN timeout Data: x%x "
2773 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
2775 /* Cleanup any outstanding ELS commands */
2776 lpfc_els_flush_cmd(vport);
2778 lpfc_els_flush_rscn(vport);
2779 lpfc_disc_flush_list(vport);
2784 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2785 "0229 Unexpected discovery timeout, "
2786 "vport State x%x\n", vport->port_state);
2790 switch (phba->link_state) {
2792 /* CLEAR LA timeout */
2793 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2794 "0228 CLEAR LA timeout\n");
2799 lpfc_issue_clear_la(phba, vport);
2801 case LPFC_LINK_UNKNOWN:
2802 case LPFC_WARM_START:
2803 case LPFC_INIT_START:
2804 case LPFC_INIT_MBX_CMDS:
2805 case LPFC_LINK_DOWN:
2806 case LPFC_HBA_ERROR:
2807 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2808 "0230 Unexpected timeout, hba link "
2809 "state x%x\n", phba->link_state);
2813 case LPFC_HBA_READY:
2818 lpfc_disc_flush_list(vport);
2819 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2820 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2821 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2822 vport->port_state = LPFC_VPORT_READY;
2829 * This routine handles processing a NameServer REG_LOGIN mailbox
2830 * command upon completion. It is setup in the LPFC_MBOXQ
2831 * as the completion routine when the command is
2832 * handed off to the SLI layer.
2835 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2837 MAILBOX_t *mb = &pmb->mb;
2838 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2839 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2840 struct lpfc_vport *vport = pmb->vport;
2842 pmb->context1 = NULL;
2844 ndlp->nlp_rpi = mb->un.varWords[0];
2845 ndlp->nlp_type |= NLP_FABRIC;
2846 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2849 * Start issuing Fabric-Device Management Interface (FDMI) command to
2850 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
2851 * fdmi-on=2 (supporting RPA/hostnmae)
2854 if (vport->cfg_fdmi_on == 1)
2855 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
2857 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
2859 /* decrement the node reference count held for this callback
2863 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2865 mempool_free(pmb, phba->mbox_mem_pool);
2871 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
2873 uint16_t *rpi = param;
2875 return ndlp->nlp_rpi == *rpi;
2879 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
2881 return memcmp(&ndlp->nlp_portname, param,
2882 sizeof(ndlp->nlp_portname)) == 0;
2885 static struct lpfc_nodelist *
2886 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
2888 struct lpfc_nodelist *ndlp;
2890 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2891 if (filter(ndlp, param))
2898 * This routine looks up the ndlp lists for the given RPI. If rpi found it
2899 * returns the node list element pointer else return NULL.
2901 struct lpfc_nodelist *
2902 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
2904 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
2908 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
2909 * returns the node element list pointer else return NULL.
2911 struct lpfc_nodelist *
2912 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
2914 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2915 struct lpfc_nodelist *ndlp;
2917 spin_lock_irq(shost->host_lock);
2918 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
2919 spin_unlock_irq(shost->host_lock);
2924 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2927 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
2928 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2929 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
2930 init_timer(&ndlp->nlp_delayfunc);
2931 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2932 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2933 ndlp->nlp_DID = did;
2934 ndlp->vport = vport;
2935 ndlp->nlp_sid = NLP_NO_SID;
2936 INIT_LIST_HEAD(&ndlp->nlp_listp);
2937 kref_init(&ndlp->kref);
2938 NLP_INT_NODE_ACT(ndlp);
2940 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2941 "node init: did:x%x",
2942 ndlp->nlp_DID, 0, 0);
2947 /* This routine releases all resources associated with a specifc NPort's ndlp
2948 * and mempool_free's the nodelist.
2951 lpfc_nlp_release(struct kref *kref)
2953 struct lpfc_hba *phba;
2954 unsigned long flags;
2955 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
2958 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
2959 "node release: did:x%x flg:x%x type:x%x",
2960 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
2962 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
2963 "0279 lpfc_nlp_release: ndlp:x%p "
2964 "usgmap:x%x refcnt:%d\n",
2965 (void *)ndlp, ndlp->nlp_usg_map,
2966 atomic_read(&ndlp->kref.refcount));
2968 /* remove ndlp from action. */
2969 lpfc_nlp_remove(ndlp->vport, ndlp);
2971 /* clear the ndlp active flag for all release cases */
2972 phba = ndlp->vport->phba;
2973 spin_lock_irqsave(&phba->ndlp_lock, flags);
2974 NLP_CLR_NODE_ACT(ndlp);
2975 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2977 /* free ndlp memory for final ndlp release */
2978 if (NLP_CHK_FREE_REQ(ndlp))
2979 mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool);
2982 /* This routine bumps the reference count for a ndlp structure to ensure
2983 * that one discovery thread won't free a ndlp while another discovery thread
2986 struct lpfc_nodelist *
2987 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
2989 struct lpfc_hba *phba;
2990 unsigned long flags;
2993 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
2994 "node get: did:x%x flg:x%x refcnt:x%x",
2995 ndlp->nlp_DID, ndlp->nlp_flag,
2996 atomic_read(&ndlp->kref.refcount));
2997 /* The check of ndlp usage to prevent incrementing the
2998 * ndlp reference count that is in the process of being
3001 phba = ndlp->vport->phba;
3002 spin_lock_irqsave(&phba->ndlp_lock, flags);
3003 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
3004 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3005 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
3006 "0276 lpfc_nlp_get: ndlp:x%p "
3007 "usgmap:x%x refcnt:%d\n",
3008 (void *)ndlp, ndlp->nlp_usg_map,
3009 atomic_read(&ndlp->kref.refcount));
3012 kref_get(&ndlp->kref);
3013 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3018 /* This routine decrements the reference count for a ndlp structure. If the
3019 * count goes to 0, this indicates the the associated nodelist should be
3020 * freed. Returning 1 indicates the ndlp resource has been released; on the
3021 * other hand, returning 0 indicates the ndlp resource has not been released
3025 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
3027 struct lpfc_hba *phba;
3028 unsigned long flags;
3033 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
3034 "node put: did:x%x flg:x%x refcnt:x%x",
3035 ndlp->nlp_DID, ndlp->nlp_flag,
3036 atomic_read(&ndlp->kref.refcount));
3037 phba = ndlp->vport->phba;
3038 spin_lock_irqsave(&phba->ndlp_lock, flags);
3039 /* Check the ndlp memory free acknowledge flag to avoid the
3040 * possible race condition that kref_put got invoked again
3041 * after previous one has done ndlp memory free.
3043 if (NLP_CHK_FREE_ACK(ndlp)) {
3044 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3045 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
3046 "0274 lpfc_nlp_put: ndlp:x%p "
3047 "usgmap:x%x refcnt:%d\n",
3048 (void *)ndlp, ndlp->nlp_usg_map,
3049 atomic_read(&ndlp->kref.refcount));
3052 /* Check the ndlp inactivate log flag to avoid the possible
3053 * race condition that kref_put got invoked again after ndlp
3054 * is already in inactivating state.
3056 if (NLP_CHK_IACT_REQ(ndlp)) {
3057 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3058 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
3059 "0275 lpfc_nlp_put: ndlp:x%p "
3060 "usgmap:x%x refcnt:%d\n",
3061 (void *)ndlp, ndlp->nlp_usg_map,
3062 atomic_read(&ndlp->kref.refcount));
3065 /* For last put, mark the ndlp usage flags to make sure no
3066 * other kref_get and kref_put on the same ndlp shall get
3067 * in between the process when the final kref_put has been
3068 * invoked on this ndlp.
3070 if (atomic_read(&ndlp->kref.refcount) == 1) {
3071 /* Indicate ndlp is put to inactive state. */
3072 NLP_SET_IACT_REQ(ndlp);
3073 /* Acknowledge ndlp memory free has been seen. */
3074 if (NLP_CHK_FREE_REQ(ndlp))
3075 NLP_SET_FREE_ACK(ndlp);
3077 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3078 /* Note, the kref_put returns 1 when decrementing a reference
3079 * count that was 1, it invokes the release callback function,
3080 * but it still left the reference count as 1 (not actually
3081 * performs the last decrementation). Otherwise, it actually
3082 * decrements the reference count and returns 0.
3084 return kref_put(&ndlp->kref, lpfc_nlp_release);
3087 /* This routine free's the specified nodelist if it is not in use
3088 * by any other discovery thread. This routine returns 1 if the
3089 * ndlp has been freed. A return value of 0 indicates the ndlp is
3090 * not yet been released.
3093 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
3095 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
3096 "node not used: did:x%x flg:x%x refcnt:x%x",
3097 ndlp->nlp_DID, ndlp->nlp_flag,
3098 atomic_read(&ndlp->kref.refcount));
3099 if (atomic_read(&ndlp->kref.refcount) == 1)
3100 if (lpfc_nlp_put(ndlp))