1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/slab.h>
24 #include <linux/pci.h>
25 #include <linux/kthread.h>
26 #include <linux/interrupt.h>
28 #include <scsi/scsi.h>
29 #include <scsi/scsi_device.h>
30 #include <scsi/scsi_host.h>
31 #include <scsi/scsi_transport_fc.h>
36 #include "lpfc_disc.h"
38 #include "lpfc_sli4.h"
39 #include "lpfc_scsi.h"
41 #include "lpfc_logmsg.h"
42 #include "lpfc_crtn.h"
43 #include "lpfc_vport.h"
44 #include "lpfc_debugfs.h"
46 /* AlpaArray for assignment of scsid for scan-down and bind_method */
47 static uint8_t lpfcAlpaArray[] = {
48 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
49 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
50 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
51 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
52 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
53 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
54 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
55 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
56 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
57 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
58 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
59 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
60 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
63 static void lpfc_disc_timeout_handler(struct lpfc_vport *);
64 static void lpfc_disc_flush_list(struct lpfc_vport *vport);
65 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
68 lpfc_terminate_rport_io(struct fc_rport *rport)
70 struct lpfc_rport_data *rdata;
71 struct lpfc_nodelist * ndlp;
72 struct lpfc_hba *phba;
74 rdata = rport->dd_data;
77 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
78 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
79 printk(KERN_ERR "Cannot find remote node"
80 " to terminate I/O Data x%x\n",
87 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
88 "rport terminate: sid:x%x did:x%x flg:x%x",
89 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
91 if (ndlp->nlp_sid != NLP_NO_SID) {
92 lpfc_sli_abort_iocb(ndlp->vport,
93 &phba->sli.ring[phba->sli.fcp_ring],
94 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
99 * This function will be called when dev_loss_tmo fire.
102 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
104 struct lpfc_rport_data *rdata;
105 struct lpfc_nodelist * ndlp;
106 struct lpfc_vport *vport;
107 struct lpfc_hba *phba;
108 struct lpfc_work_evt *evtp;
112 rdata = rport->dd_data;
114 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
120 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
121 "rport devlosscb: sid:x%x did:x%x flg:x%x",
122 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
124 /* Don't defer this if we are in the process of deleting the vport
125 * or unloading the driver. The unload will cleanup the node
126 * appropriately we just need to cleanup the ndlp rport info here.
128 if (vport->load_flag & FC_UNLOADING) {
129 put_node = rdata->pnode != NULL;
130 put_rport = ndlp->rport != NULL;
136 put_device(&rport->dev);
140 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
143 evtp = &ndlp->dev_loss_evt;
145 if (!list_empty(&evtp->evt_listp))
148 spin_lock_irq(&phba->hbalock);
149 /* We need to hold the node by incrementing the reference
150 * count until this queued work is done
152 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
153 if (evtp->evt_arg1) {
154 evtp->evt = LPFC_EVT_DEV_LOSS;
155 list_add_tail(&evtp->evt_listp, &phba->work_list);
156 lpfc_worker_wake_up(phba);
158 spin_unlock_irq(&phba->hbalock);
164 * This function is called from the worker thread when dev_loss_tmo
168 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
170 struct lpfc_rport_data *rdata;
171 struct fc_rport *rport;
172 struct lpfc_vport *vport;
173 struct lpfc_hba *phba;
184 rdata = rport->dd_data;
185 name = (uint8_t *) &ndlp->nlp_portname;
189 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
190 "rport devlosstmo:did:x%x type:x%x id:x%x",
191 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
193 /* Don't defer this if we are in the process of deleting the vport
194 * or unloading the driver. The unload will cleanup the node
195 * appropriately we just need to cleanup the ndlp rport info here.
197 if (vport->load_flag & FC_UNLOADING) {
198 if (ndlp->nlp_sid != NLP_NO_SID) {
199 /* flush the target */
200 lpfc_sli_abort_iocb(vport,
201 &phba->sli.ring[phba->sli.fcp_ring],
202 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
204 put_node = rdata->pnode != NULL;
205 put_rport = ndlp->rport != NULL;
211 put_device(&rport->dev);
215 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
216 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
217 "0284 Devloss timeout Ignored on "
218 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
220 *name, *(name+1), *(name+2), *(name+3),
221 *(name+4), *(name+5), *(name+6), *(name+7),
226 if (ndlp->nlp_type & NLP_FABRIC) {
227 /* We will clean up these Nodes in linkup */
228 put_node = rdata->pnode != NULL;
229 put_rport = ndlp->rport != NULL;
235 put_device(&rport->dev);
239 if (ndlp->nlp_sid != NLP_NO_SID) {
241 /* flush the target */
242 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
243 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
247 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
248 "0203 Devloss timeout on "
249 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
250 "NPort x%06x Data: x%x x%x x%x\n",
251 *name, *(name+1), *(name+2), *(name+3),
252 *(name+4), *(name+5), *(name+6), *(name+7),
253 ndlp->nlp_DID, ndlp->nlp_flag,
254 ndlp->nlp_state, ndlp->nlp_rpi);
256 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
257 "0204 Devloss timeout on "
258 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
259 "NPort x%06x Data: x%x x%x x%x\n",
260 *name, *(name+1), *(name+2), *(name+3),
261 *(name+4), *(name+5), *(name+6), *(name+7),
262 ndlp->nlp_DID, ndlp->nlp_flag,
263 ndlp->nlp_state, ndlp->nlp_rpi);
266 put_node = rdata->pnode != NULL;
267 put_rport = ndlp->rport != NULL;
273 put_device(&rport->dev);
275 if (!(vport->load_flag & FC_UNLOADING) &&
276 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
277 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
278 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
279 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) &&
280 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE))
281 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
283 lpfc_unregister_unused_fcf(phba);
287 * lpfc_alloc_fast_evt - Allocates data structure for posting event
288 * @phba: Pointer to hba context object.
290 * This function is called from the functions which need to post
291 * events from interrupt context. This function allocates data
292 * structure required for posting event. It also keeps track of
293 * number of events pending and prevent event storm when there are
296 struct lpfc_fast_path_event *
297 lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
298 struct lpfc_fast_path_event *ret;
300 /* If there are lot of fast event do not exhaust memory due to this */
301 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
304 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
307 atomic_inc(&phba->fast_event_count);
308 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
309 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
315 * lpfc_free_fast_evt - Frees event data structure
316 * @phba: Pointer to hba context object.
317 * @evt: Event object which need to be freed.
319 * This function frees the data structure required for posting
323 lpfc_free_fast_evt(struct lpfc_hba *phba,
324 struct lpfc_fast_path_event *evt) {
326 atomic_dec(&phba->fast_event_count);
331 * lpfc_send_fastpath_evt - Posts events generated from fast path
332 * @phba: Pointer to hba context object.
333 * @evtp: Event data structure.
335 * This function is called from worker thread, when the interrupt
336 * context need to post an event. This function posts the event
337 * to fc transport netlink interface.
340 lpfc_send_fastpath_evt(struct lpfc_hba *phba,
341 struct lpfc_work_evt *evtp)
343 unsigned long evt_category, evt_sub_category;
344 struct lpfc_fast_path_event *fast_evt_data;
346 uint32_t evt_data_size;
347 struct Scsi_Host *shost;
349 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
352 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
353 evt_sub_category = (unsigned long) fast_evt_data->un.
354 fabric_evt.subcategory;
355 shost = lpfc_shost_from_vport(fast_evt_data->vport);
356 if (evt_category == FC_REG_FABRIC_EVENT) {
357 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
358 evt_data = (char *) &fast_evt_data->un.read_check_error;
359 evt_data_size = sizeof(fast_evt_data->un.
361 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
362 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
363 evt_data = (char *) &fast_evt_data->un.fabric_evt;
364 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
366 lpfc_free_fast_evt(phba, fast_evt_data);
369 } else if (evt_category == FC_REG_SCSI_EVENT) {
370 switch (evt_sub_category) {
371 case LPFC_EVENT_QFULL:
372 case LPFC_EVENT_DEVBSY:
373 evt_data = (char *) &fast_evt_data->un.scsi_evt;
374 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
376 case LPFC_EVENT_CHECK_COND:
377 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
378 evt_data_size = sizeof(fast_evt_data->un.
381 case LPFC_EVENT_VARQUEDEPTH:
382 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
383 evt_data_size = sizeof(fast_evt_data->un.
387 lpfc_free_fast_evt(phba, fast_evt_data);
391 lpfc_free_fast_evt(phba, fast_evt_data);
395 fc_host_post_vendor_event(shost,
396 fc_get_event_number(),
401 lpfc_free_fast_evt(phba, fast_evt_data);
406 lpfc_work_list_done(struct lpfc_hba *phba)
408 struct lpfc_work_evt *evtp = NULL;
409 struct lpfc_nodelist *ndlp;
412 spin_lock_irq(&phba->hbalock);
413 while (!list_empty(&phba->work_list)) {
414 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
416 spin_unlock_irq(&phba->hbalock);
419 case LPFC_EVT_ELS_RETRY:
420 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
421 lpfc_els_retry_delay_handler(ndlp);
422 free_evt = 0; /* evt is part of ndlp */
423 /* decrement the node reference count held
424 * for this queued work
428 case LPFC_EVT_DEV_LOSS:
429 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
430 lpfc_dev_loss_tmo_handler(ndlp);
432 /* decrement the node reference count held for
437 case LPFC_EVT_ONLINE:
438 if (phba->link_state < LPFC_LINK_DOWN)
439 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
441 *(int *) (evtp->evt_arg1) = 0;
442 complete((struct completion *)(evtp->evt_arg2));
444 case LPFC_EVT_OFFLINE_PREP:
445 if (phba->link_state >= LPFC_LINK_DOWN)
446 lpfc_offline_prep(phba);
447 *(int *)(evtp->evt_arg1) = 0;
448 complete((struct completion *)(evtp->evt_arg2));
450 case LPFC_EVT_OFFLINE:
452 lpfc_sli_brdrestart(phba);
453 *(int *)(evtp->evt_arg1) =
454 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
455 lpfc_unblock_mgmt_io(phba);
456 complete((struct completion *)(evtp->evt_arg2));
458 case LPFC_EVT_WARM_START:
460 lpfc_reset_barrier(phba);
461 lpfc_sli_brdreset(phba);
462 lpfc_hba_down_post(phba);
463 *(int *)(evtp->evt_arg1) =
464 lpfc_sli_brdready(phba, HS_MBRDY);
465 lpfc_unblock_mgmt_io(phba);
466 complete((struct completion *)(evtp->evt_arg2));
470 *(int *)(evtp->evt_arg1)
471 = (phba->pport->stopped)
472 ? 0 : lpfc_sli_brdkill(phba);
473 lpfc_unblock_mgmt_io(phba);
474 complete((struct completion *)(evtp->evt_arg2));
476 case LPFC_EVT_FASTPATH_MGMT_EVT:
477 lpfc_send_fastpath_evt(phba, evtp);
480 case LPFC_EVT_RESET_HBA:
481 if (!(phba->pport->load_flag & FC_UNLOADING))
482 lpfc_reset_hba(phba);
487 spin_lock_irq(&phba->hbalock);
489 spin_unlock_irq(&phba->hbalock);
494 lpfc_work_done(struct lpfc_hba *phba)
496 struct lpfc_sli_ring *pring;
497 uint32_t ha_copy, status, control, work_port_events;
498 struct lpfc_vport **vports;
499 struct lpfc_vport *vport;
502 spin_lock_irq(&phba->hbalock);
503 ha_copy = phba->work_ha;
505 spin_unlock_irq(&phba->hbalock);
507 /* First, try to post the next mailbox command to SLI4 device */
508 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
509 lpfc_sli4_post_async_mbox(phba);
511 if (ha_copy & HA_ERATT)
512 /* Handle the error attention event */
513 lpfc_handle_eratt(phba);
515 if (ha_copy & HA_MBATT)
516 lpfc_sli_handle_mb_event(phba);
518 if (ha_copy & HA_LATT)
519 lpfc_handle_latt(phba);
521 /* Process SLI4 events */
522 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
523 if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
524 lpfc_sli4_fcp_xri_abort_event_proc(phba);
525 if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
526 lpfc_sli4_els_xri_abort_event_proc(phba);
527 if (phba->hba_flag & ASYNC_EVENT)
528 lpfc_sli4_async_event_proc(phba);
529 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
530 spin_lock_irq(&phba->hbalock);
531 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
532 spin_unlock_irq(&phba->hbalock);
533 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
535 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
536 lpfc_sli4_fcf_redisc_event_proc(phba);
539 vports = lpfc_create_vport_work_array(phba);
541 for (i = 0; i <= phba->max_vports; i++) {
543 * We could have no vports in array if unloading, so if
544 * this happens then just use the pport
546 if (vports[i] == NULL && i == 0)
552 spin_lock_irq(&vport->work_port_lock);
553 work_port_events = vport->work_port_events;
554 vport->work_port_events &= ~work_port_events;
555 spin_unlock_irq(&vport->work_port_lock);
556 if (work_port_events & WORKER_DISC_TMO)
557 lpfc_disc_timeout_handler(vport);
558 if (work_port_events & WORKER_ELS_TMO)
559 lpfc_els_timeout_handler(vport);
560 if (work_port_events & WORKER_HB_TMO)
561 lpfc_hb_timeout_handler(phba);
562 if (work_port_events & WORKER_MBOX_TMO)
563 lpfc_mbox_timeout_handler(phba);
564 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
565 lpfc_unblock_fabric_iocbs(phba);
566 if (work_port_events & WORKER_FDMI_TMO)
567 lpfc_fdmi_timeout_handler(vport);
568 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
569 lpfc_ramp_down_queue_handler(phba);
570 if (work_port_events & WORKER_RAMP_UP_QUEUE)
571 lpfc_ramp_up_queue_handler(phba);
573 lpfc_destroy_vport_work_array(phba, vports);
575 pring = &phba->sli.ring[LPFC_ELS_RING];
576 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
577 status >>= (4*LPFC_ELS_RING);
578 if ((status & HA_RXMASK) ||
579 (pring->flag & LPFC_DEFERRED_RING_EVENT) ||
580 (phba->hba_flag & HBA_SP_QUEUE_EVT)) {
581 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
582 pring->flag |= LPFC_DEFERRED_RING_EVENT;
583 /* Set the lpfc data pending flag */
584 set_bit(LPFC_DATA_READY, &phba->data_flags);
586 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
587 lpfc_sli_handle_slow_ring_event(phba, pring,
592 lpfc_drain_txq(phba);
594 * Turn on Ring interrupts
596 if (phba->sli_rev <= LPFC_SLI_REV3) {
597 spin_lock_irq(&phba->hbalock);
598 control = readl(phba->HCregaddr);
599 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
600 lpfc_debugfs_slow_ring_trc(phba,
601 "WRK Enable ring: cntl:x%x hacopy:x%x",
602 control, ha_copy, 0);
604 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
605 writel(control, phba->HCregaddr);
606 readl(phba->HCregaddr); /* flush */
608 lpfc_debugfs_slow_ring_trc(phba,
609 "WRK Ring ok: cntl:x%x hacopy:x%x",
610 control, ha_copy, 0);
612 spin_unlock_irq(&phba->hbalock);
615 lpfc_work_list_done(phba);
619 lpfc_do_work(void *p)
621 struct lpfc_hba *phba = p;
624 set_user_nice(current, -20);
625 phba->data_flags = 0;
627 while (!kthread_should_stop()) {
628 /* wait and check worker queue activities */
629 rc = wait_event_interruptible(phba->work_waitq,
630 (test_and_clear_bit(LPFC_DATA_READY,
632 || kthread_should_stop()));
633 /* Signal wakeup shall terminate the worker thread */
635 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
636 "0433 Wakeup on signal: rc=x%x\n", rc);
640 /* Attend pending lpfc data processing */
641 lpfc_work_done(phba);
643 phba->worker_thread = NULL;
644 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
645 "0432 Worker thread stopped.\n");
650 * This is only called to handle FC worker events. Since this a rare
651 * occurance, we allocate a struct lpfc_work_evt structure here instead of
652 * embedding it in the IOCB.
655 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
658 struct lpfc_work_evt *evtp;
662 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
663 * be queued to worker thread for processing
665 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
669 evtp->evt_arg1 = arg1;
670 evtp->evt_arg2 = arg2;
673 spin_lock_irqsave(&phba->hbalock, flags);
674 list_add_tail(&evtp->evt_listp, &phba->work_list);
675 spin_unlock_irqrestore(&phba->hbalock, flags);
677 lpfc_worker_wake_up(phba);
683 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
685 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
686 struct lpfc_hba *phba = vport->phba;
687 struct lpfc_nodelist *ndlp, *next_ndlp;
690 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
691 if (!NLP_CHK_NODE_ACT(ndlp))
693 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
695 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
696 ((vport->port_type == LPFC_NPIV_PORT) &&
697 (ndlp->nlp_DID == NameServer_DID)))
698 lpfc_unreg_rpi(vport, ndlp);
700 /* Leave Fabric nodes alone on link down */
701 if ((phba->sli_rev < LPFC_SLI_REV4) &&
702 (!remove && ndlp->nlp_type & NLP_FABRIC))
704 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
707 : NLP_EVT_DEVICE_RECOVERY);
709 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
710 lpfc_mbx_unreg_vpi(vport);
711 spin_lock_irq(shost->host_lock);
712 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
713 spin_unlock_irq(shost->host_lock);
718 lpfc_port_link_failure(struct lpfc_vport *vport)
720 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
722 /* Cleanup any outstanding received buffers */
723 lpfc_cleanup_rcv_buffers(vport);
725 /* Cleanup any outstanding RSCN activity */
726 lpfc_els_flush_rscn(vport);
728 /* Cleanup any outstanding ELS commands */
729 lpfc_els_flush_cmd(vport);
731 lpfc_cleanup_rpis(vport, 0);
733 /* Turn off discovery timer if its running */
734 lpfc_can_disctmo(vport);
738 lpfc_linkdown_port(struct lpfc_vport *vport)
740 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
742 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
744 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
745 "Link Down: state:x%x rtry:x%x flg:x%x",
746 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
748 lpfc_port_link_failure(vport);
753 lpfc_linkdown(struct lpfc_hba *phba)
755 struct lpfc_vport *vport = phba->pport;
756 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
757 struct lpfc_vport **vports;
761 if (phba->link_state == LPFC_LINK_DOWN)
764 /* Block all SCSI stack I/Os */
765 lpfc_scsi_dev_block(phba);
767 spin_lock_irq(&phba->hbalock);
768 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
769 spin_unlock_irq(&phba->hbalock);
770 if (phba->link_state > LPFC_LINK_DOWN) {
771 phba->link_state = LPFC_LINK_DOWN;
772 spin_lock_irq(shost->host_lock);
773 phba->pport->fc_flag &= ~FC_LBIT;
774 spin_unlock_irq(shost->host_lock);
776 vports = lpfc_create_vport_work_array(phba);
778 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
779 /* Issue a LINK DOWN event to all nodes */
780 lpfc_linkdown_port(vports[i]);
782 lpfc_destroy_vport_work_array(phba, vports);
783 /* Clean up any firmware default rpi's */
784 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
786 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
788 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
789 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
790 == MBX_NOT_FINISHED) {
791 mempool_free(mb, phba->mbox_mem_pool);
795 /* Setup myDID for link up if we are in pt2pt mode */
796 if (phba->pport->fc_flag & FC_PT2PT) {
797 phba->pport->fc_myDID = 0;
798 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
800 lpfc_config_link(phba, mb);
801 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
803 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
804 == MBX_NOT_FINISHED) {
805 mempool_free(mb, phba->mbox_mem_pool);
808 spin_lock_irq(shost->host_lock);
809 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
810 spin_unlock_irq(shost->host_lock);
817 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
819 struct lpfc_nodelist *ndlp;
821 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
822 if (!NLP_CHK_NODE_ACT(ndlp))
824 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
826 if (ndlp->nlp_type & NLP_FABRIC) {
827 /* On Linkup its safe to clean up the ndlp
828 * from Fabric connections.
830 if (ndlp->nlp_DID != Fabric_DID)
831 lpfc_unreg_rpi(vport, ndlp);
832 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
833 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
834 /* Fail outstanding IO now since device is
837 lpfc_unreg_rpi(vport, ndlp);
843 lpfc_linkup_port(struct lpfc_vport *vport)
845 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
846 struct lpfc_hba *phba = vport->phba;
848 if ((vport->load_flag & FC_UNLOADING) != 0)
851 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
852 "Link Up: top:x%x speed:x%x flg:x%x",
853 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
855 /* If NPIV is not enabled, only bring the physical port up */
856 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
857 (vport != phba->pport))
860 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
862 spin_lock_irq(shost->host_lock);
863 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
864 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
865 vport->fc_flag |= FC_NDISC_ACTIVE;
866 vport->fc_ns_retry = 0;
867 spin_unlock_irq(shost->host_lock);
869 if (vport->fc_flag & FC_LBIT)
870 lpfc_linkup_cleanup_nodes(vport);
875 lpfc_linkup(struct lpfc_hba *phba)
877 struct lpfc_vport **vports;
880 phba->link_state = LPFC_LINK_UP;
882 /* Unblock fabric iocbs if they are blocked */
883 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
884 del_timer_sync(&phba->fabric_block_timer);
886 vports = lpfc_create_vport_work_array(phba);
888 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
889 lpfc_linkup_port(vports[i]);
890 lpfc_destroy_vport_work_array(phba, vports);
891 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
892 (phba->sli_rev < LPFC_SLI_REV4))
893 lpfc_issue_clear_la(phba, phba->pport);
899 * This routine handles processing a CLEAR_LA mailbox
900 * command upon completion. It is setup in the LPFC_MBOXQ
901 * as the completion routine when the command is
902 * handed off to the SLI layer.
905 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
907 struct lpfc_vport *vport = pmb->vport;
908 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
909 struct lpfc_sli *psli = &phba->sli;
910 MAILBOX_t *mb = &pmb->u.mb;
913 /* Since we don't do discovery right now, turn these off here */
914 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
915 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
916 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
918 /* Check for error */
919 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
920 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
921 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
922 "0320 CLEAR_LA mbxStatus error x%x hba "
924 mb->mbxStatus, vport->port_state);
925 phba->link_state = LPFC_HBA_ERROR;
929 if (vport->port_type == LPFC_PHYSICAL_PORT)
930 phba->link_state = LPFC_HBA_READY;
932 spin_lock_irq(&phba->hbalock);
933 psli->sli_flag |= LPFC_PROCESS_LA;
934 control = readl(phba->HCregaddr);
935 control |= HC_LAINT_ENA;
936 writel(control, phba->HCregaddr);
937 readl(phba->HCregaddr); /* flush */
938 spin_unlock_irq(&phba->hbalock);
939 mempool_free(pmb, phba->mbox_mem_pool);
943 /* Device Discovery completes */
944 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
945 "0225 Device Discovery completes\n");
946 mempool_free(pmb, phba->mbox_mem_pool);
948 spin_lock_irq(shost->host_lock);
949 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
950 spin_unlock_irq(shost->host_lock);
952 lpfc_can_disctmo(vport);
954 /* turn on Link Attention interrupts */
956 spin_lock_irq(&phba->hbalock);
957 psli->sli_flag |= LPFC_PROCESS_LA;
958 control = readl(phba->HCregaddr);
959 control |= HC_LAINT_ENA;
960 writel(control, phba->HCregaddr);
961 readl(phba->HCregaddr); /* flush */
962 spin_unlock_irq(&phba->hbalock);
969 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
971 struct lpfc_vport *vport = pmb->vport;
973 if (pmb->u.mb.mbxStatus)
976 mempool_free(pmb, phba->mbox_mem_pool);
978 if (phba->fc_topology == TOPOLOGY_LOOP &&
979 vport->fc_flag & FC_PUBLIC_LOOP &&
980 !(vport->fc_flag & FC_LBIT)) {
981 /* Need to wait for FAN - use discovery timer
982 * for timeout. port_state is identically
983 * LPFC_LOCAL_CFG_LINK while waiting for FAN
985 lpfc_set_disctmo(vport);
989 /* Start discovery by sending a FLOGI. port_state is identically
990 * LPFC_FLOGI while waiting for FLOGI cmpl
992 if (vport->port_state != LPFC_FLOGI) {
993 lpfc_initial_flogi(vport);
998 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
999 "0306 CONFIG_LINK mbxStatus error x%x "
1001 pmb->u.mb.mbxStatus, vport->port_state);
1002 mempool_free(pmb, phba->mbox_mem_pool);
1004 lpfc_linkdown(phba);
1006 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1007 "0200 CONFIG_LINK bad hba state x%x\n",
1010 lpfc_issue_clear_la(phba, vport);
1015 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1017 struct lpfc_vport *vport = mboxq->vport;
1018 unsigned long flags;
1020 if (mboxq->u.mb.mbxStatus) {
1021 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1022 "2017 REG_FCFI mbxStatus error x%x "
1024 mboxq->u.mb.mbxStatus, vport->port_state);
1025 mempool_free(mboxq, phba->mbox_mem_pool);
1029 /* Start FCoE discovery by sending a FLOGI. */
1030 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1031 /* Set the FCFI registered flag */
1032 spin_lock_irqsave(&phba->hbalock, flags);
1033 phba->fcf.fcf_flag |= FCF_REGISTERED;
1034 spin_unlock_irqrestore(&phba->hbalock, flags);
1035 /* If there is a pending FCoE event, restart FCF table scan. */
1036 if (lpfc_check_pending_fcoe_event(phba, 1)) {
1037 mempool_free(mboxq, phba->mbox_mem_pool);
1040 spin_lock_irqsave(&phba->hbalock, flags);
1041 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1042 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1043 spin_unlock_irqrestore(&phba->hbalock, flags);
1044 if (vport->port_state != LPFC_FLOGI)
1045 lpfc_initial_flogi(vport);
1047 mempool_free(mboxq, phba->mbox_mem_pool);
1052 * lpfc_fab_name_match - Check if the fcf fabric name match.
1053 * @fab_name: pointer to fabric name.
1054 * @new_fcf_record: pointer to fcf record.
1056 * This routine compare the fcf record's fabric name with provided
1057 * fabric name. If the fabric name are identical this function
1058 * returns 1 else return 0.
1061 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1063 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1065 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1067 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1069 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1071 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1073 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
1075 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1077 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1083 * lpfc_sw_name_match - Check if the fcf switch name match.
1084 * @fab_name: pointer to fabric name.
1085 * @new_fcf_record: pointer to fcf record.
1087 * This routine compare the fcf record's switch name with provided
1088 * switch name. If the switch name are identical this function
1089 * returns 1 else return 0.
1092 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1094 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1096 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1098 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
1100 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1102 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1104 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1106 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1108 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1114 * lpfc_mac_addr_match - Check if the fcf mac address match.
1115 * @mac_addr: pointer to mac address.
1116 * @new_fcf_record: pointer to fcf record.
1118 * This routine compare the fcf record's mac address with HBA's
1119 * FCF mac address. If the mac addresses are identical this function
1120 * returns 1 else return 0.
1123 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
1125 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1127 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1129 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1131 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1133 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1135 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
1141 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1143 return (curr_vlan_id == new_vlan_id);
1147 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1148 * @fcf: pointer to driver fcf record.
1149 * @new_fcf_record: pointer to fcf record.
1151 * This routine copies the FCF information from the FCF
1152 * record to lpfc_hba data structure.
1155 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1156 struct fcf_record *new_fcf_record)
1159 fcf_rec->fabric_name[0] =
1160 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
1161 fcf_rec->fabric_name[1] =
1162 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
1163 fcf_rec->fabric_name[2] =
1164 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
1165 fcf_rec->fabric_name[3] =
1166 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
1167 fcf_rec->fabric_name[4] =
1168 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
1169 fcf_rec->fabric_name[5] =
1170 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
1171 fcf_rec->fabric_name[6] =
1172 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
1173 fcf_rec->fabric_name[7] =
1174 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
1176 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1177 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1178 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1179 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1180 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1181 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1182 /* FCF record index */
1183 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1184 /* FCF record priority */
1185 fcf_rec->priority = new_fcf_record->fip_priority;
1187 fcf_rec->switch_name[0] =
1188 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
1189 fcf_rec->switch_name[1] =
1190 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
1191 fcf_rec->switch_name[2] =
1192 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
1193 fcf_rec->switch_name[3] =
1194 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
1195 fcf_rec->switch_name[4] =
1196 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
1197 fcf_rec->switch_name[5] =
1198 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
1199 fcf_rec->switch_name[6] =
1200 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
1201 fcf_rec->switch_name[7] =
1202 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
1206 * lpfc_update_fcf_record - Update driver fcf record
1207 * @phba: pointer to lpfc hba data structure.
1208 * @fcf_rec: pointer to driver fcf record.
1209 * @new_fcf_record: pointer to hba fcf record.
1210 * @addr_mode: address mode to be set to the driver fcf record.
1211 * @vlan_id: vlan tag to be set to the driver fcf record.
1212 * @flag: flag bits to be set to the driver fcf record.
1214 * This routine updates the driver FCF record from the new HBA FCF record
1215 * together with the address mode, vlan_id, and other informations. This
1216 * routine is called with the host lock held.
1219 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1220 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1221 uint16_t vlan_id, uint32_t flag)
1223 /* Copy the fields from the HBA's FCF record */
1224 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1225 /* Update other fields of driver FCF record */
1226 fcf_rec->addr_mode = addr_mode;
1227 fcf_rec->vlan_id = vlan_id;
1228 fcf_rec->flag |= (flag | RECORD_VALID);
1232 * lpfc_register_fcf - Register the FCF with hba.
1233 * @phba: pointer to lpfc hba data structure.
1235 * This routine issues a register fcfi mailbox command to register
1239 lpfc_register_fcf(struct lpfc_hba *phba)
1241 LPFC_MBOXQ_t *fcf_mbxq;
1243 unsigned long flags;
1245 spin_lock_irqsave(&phba->hbalock, flags);
1247 /* If the FCF is not availabe do nothing. */
1248 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
1249 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1250 spin_unlock_irqrestore(&phba->hbalock, flags);
1254 /* The FCF is already registered, start discovery */
1255 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
1256 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1257 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1258 spin_unlock_irqrestore(&phba->hbalock, flags);
1259 if (phba->pport->port_state != LPFC_FLOGI)
1260 lpfc_initial_flogi(phba->pport);
1263 spin_unlock_irqrestore(&phba->hbalock, flags);
1265 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool,
1268 spin_lock_irqsave(&phba->hbalock, flags);
1269 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1270 spin_unlock_irqrestore(&phba->hbalock, flags);
1274 lpfc_reg_fcfi(phba, fcf_mbxq);
1275 fcf_mbxq->vport = phba->pport;
1276 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1277 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
1278 if (rc == MBX_NOT_FINISHED) {
1279 spin_lock_irqsave(&phba->hbalock, flags);
1280 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1281 spin_unlock_irqrestore(&phba->hbalock, flags);
1282 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
1289 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1290 * @phba: pointer to lpfc hba data structure.
1291 * @new_fcf_record: pointer to fcf record.
1292 * @boot_flag: Indicates if this record used by boot bios.
1293 * @addr_mode: The address mode to be used by this FCF
1294 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1296 * This routine compare the fcf record with connect list obtained from the
1297 * config region to decide if this FCF can be used for SAN discovery. It returns
1298 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1299 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1300 * is used by boot bios and addr_mode will indicate the addressing mode to be
1301 * used for this FCF when the function returns.
1302 * If the FCF record need to be used with a particular vlan id, the vlan is
1303 * set in the vlan_id on return of the function. If not VLAN tagging need to
1304 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1307 lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1308 struct fcf_record *new_fcf_record,
1309 uint32_t *boot_flag, uint32_t *addr_mode,
1312 struct lpfc_fcf_conn_entry *conn_entry;
1313 int i, j, fcf_vlan_id = 0;
1315 /* Find the lowest VLAN id in the FCF record */
1316 for (i = 0; i < 512; i++) {
1317 if (new_fcf_record->vlan_bitmap[i]) {
1318 fcf_vlan_id = i * 8;
1320 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1328 /* If FCF not available return 0 */
1329 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1330 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record))
1333 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
1335 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1337 if (phba->valid_vlan)
1338 *vlan_id = phba->vlan_id;
1340 *vlan_id = LPFC_FCOE_NULL_VID;
1345 * If there are no FCF connection table entry, driver connect to all
1348 if (list_empty(&phba->fcf_conn_rec_list)) {
1350 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1354 * When there are no FCF connect entries, use driver's default
1355 * addressing mode - FPMA.
1357 if (*addr_mode & LPFC_FCF_FPMA)
1358 *addr_mode = LPFC_FCF_FPMA;
1360 /* If FCF record report a vlan id use that vlan id */
1362 *vlan_id = fcf_vlan_id;
1364 *vlan_id = LPFC_FCOE_NULL_VID;
1368 list_for_each_entry(conn_entry,
1369 &phba->fcf_conn_rec_list, list) {
1370 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1373 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1374 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
1377 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1378 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1381 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1383 * If the vlan bit map does not have the bit set for the
1384 * vlan id to be used, then it is not a match.
1386 if (!(new_fcf_record->vlan_bitmap
1387 [conn_entry->conn_rec.vlan_tag / 8] &
1388 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1393 * If connection record does not support any addressing mode,
1394 * skip the FCF record.
1396 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1397 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1401 * Check if the connection record specifies a required
1404 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1405 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1408 * If SPMA required but FCF not support this continue.
1410 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1411 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1412 new_fcf_record) & LPFC_FCF_SPMA))
1416 * If FPMA required but FCF not support this continue.
1418 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1419 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1420 new_fcf_record) & LPFC_FCF_FPMA))
1425 * This fcf record matches filtering criteria.
1427 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1433 * If user did not specify any addressing mode, or if the
1434 * prefered addressing mode specified by user is not supported
1435 * by FCF, allow fabric to pick the addressing mode.
1437 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1440 * If the user specified a required address mode, assign that
1443 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1444 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1445 *addr_mode = (conn_entry->conn_rec.flags &
1447 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1449 * If the user specified a prefered address mode, use the
1450 * addr mode only if FCF support the addr_mode.
1452 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1453 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1454 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1455 (*addr_mode & LPFC_FCF_SPMA))
1456 *addr_mode = LPFC_FCF_SPMA;
1457 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1458 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1459 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1460 (*addr_mode & LPFC_FCF_FPMA))
1461 *addr_mode = LPFC_FCF_FPMA;
1463 /* If matching connect list has a vlan id, use it */
1464 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1465 *vlan_id = conn_entry->conn_rec.vlan_tag;
1467 * If no vlan id is specified in connect list, use the vlan id
1470 else if (fcf_vlan_id)
1471 *vlan_id = fcf_vlan_id;
1473 *vlan_id = LPFC_FCOE_NULL_VID;
1482 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1483 * @phba: pointer to lpfc hba data structure.
1484 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1486 * This function check if there is any fcoe event pending while driver
1487 * scan FCF entries. If there is any pending event, it will restart the
1488 * FCF saning and return 1 else return 0.
1491 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1494 * If the Link is up and no FCoE events while in the
1495 * FCF discovery, no need to restart FCF discovery.
1497 if ((phba->link_state >= LPFC_LINK_UP) &&
1498 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
1501 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1502 "2768 Pending link or FCF event during current "
1503 "handling of the previous event: link_state:x%x, "
1504 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1505 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
1506 phba->fcoe_eventtag);
1508 spin_lock_irq(&phba->hbalock);
1509 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1510 spin_unlock_irq(&phba->hbalock);
1512 if (phba->link_state >= LPFC_LINK_UP) {
1513 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1514 "2780 Restart FCF table scan due to "
1515 "pending FCF event:evt_tag_at_scan:x%x, "
1516 "evt_tag_current:x%x\n",
1517 phba->fcoe_eventtag_at_fcf_scan,
1518 phba->fcoe_eventtag);
1519 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
1522 * Do not continue FCF discovery and clear FCF_DISC_INPROGRESS
1525 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1526 "2833 Stop FCF discovery process due to link "
1527 "state change (x%x)\n", phba->link_state);
1528 spin_lock_irq(&phba->hbalock);
1529 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1530 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
1531 spin_unlock_irq(&phba->hbalock);
1534 /* Unregister the currently registered FCF if required */
1536 spin_lock_irq(&phba->hbalock);
1537 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1538 spin_unlock_irq(&phba->hbalock);
1539 lpfc_sli4_unregister_fcf(phba);
1545 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1546 * @phba: pointer to lpfc hba data structure.
1547 * @fcf_cnt: number of eligible fcf record seen so far.
1549 * This function makes an running random selection decision on FCF record to
1550 * use through a sequence of @fcf_cnt eligible FCF records with equal
1551 * probability. To perform integer manunipulation of random numbers with
1552 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1553 * from random32() are taken as the random random number generated.
1555 * Returns true when outcome is for the newly read FCF record should be
1556 * chosen; otherwise, return false when outcome is for keeping the previously
1557 * chosen FCF record.
1560 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
1564 /* Get 16-bit uniform random number */
1565 rand_num = (0xFFFF & random32());
1567 /* Decision with probability 1/fcf_cnt */
1568 if ((fcf_cnt * rand_num) < 0xFFFF)
1575 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
1576 * @phba: pointer to lpfc hba data structure.
1577 * @mboxq: pointer to mailbox object.
1578 * @next_fcf_index: pointer to holder of next fcf index.
1580 * This routine parses the non-embedded fcf mailbox command by performing the
1581 * necessarily error checking, non-embedded read FCF record mailbox command
1582 * SGE parsing, and endianness swapping.
1584 * Returns the pointer to the new FCF record in the non-embedded mailbox
1585 * command DMA memory if successfully, other NULL.
1587 static struct fcf_record *
1588 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
1589 uint16_t *next_fcf_index)
1592 dma_addr_t phys_addr;
1593 struct lpfc_mbx_sge sge;
1594 struct lpfc_mbx_read_fcf_tbl *read_fcf;
1595 uint32_t shdr_status, shdr_add_status;
1596 union lpfc_sli4_cfg_shdr *shdr;
1597 struct fcf_record *new_fcf_record;
1599 /* Get the first SGE entry from the non-embedded DMA memory. This
1600 * routine only uses a single SGE.
1602 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1603 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
1604 if (unlikely(!mboxq->sge_array)) {
1605 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1606 "2524 Failed to get the non-embedded SGE "
1607 "virtual address\n");
1610 virt_addr = mboxq->sge_array->addr[0];
1612 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
1613 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
1614 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
1615 if (shdr_status || shdr_add_status) {
1616 if (shdr_status == STATUS_FCF_TABLE_EMPTY)
1617 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1618 "2726 READ_FCF_RECORD Indicates empty "
1621 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1622 "2521 READ_FCF_RECORD mailbox failed "
1623 "with status x%x add_status x%x, "
1624 "mbx\n", shdr_status, shdr_add_status);
1628 /* Interpreting the returned information of the FCF record */
1629 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1630 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1631 sizeof(struct lpfc_mbx_read_fcf_tbl));
1632 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
1633 new_fcf_record = (struct fcf_record *)(virt_addr +
1634 sizeof(struct lpfc_mbx_read_fcf_tbl));
1635 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
1636 offsetof(struct fcf_record, vlan_bitmap));
1637 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
1638 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
1640 return new_fcf_record;
1644 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1645 * @phba: pointer to lpfc hba data structure.
1646 * @fcf_record: pointer to the fcf record.
1647 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1648 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1650 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1654 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
1655 struct fcf_record *fcf_record,
1657 uint16_t next_fcf_index)
1659 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1660 "2764 READ_FCF_RECORD:\n"
1661 "\tFCF_Index : x%x\n"
1662 "\tFCF_Avail : x%x\n"
1663 "\tFCF_Valid : x%x\n"
1664 "\tFIP_Priority : x%x\n"
1665 "\tMAC_Provider : x%x\n"
1666 "\tLowest VLANID : x%x\n"
1667 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1668 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1669 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1670 "\tNext_FCF_Index: x%x\n",
1671 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
1672 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
1673 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
1674 fcf_record->fip_priority,
1675 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
1677 bf_get(lpfc_fcf_record_mac_0, fcf_record),
1678 bf_get(lpfc_fcf_record_mac_1, fcf_record),
1679 bf_get(lpfc_fcf_record_mac_2, fcf_record),
1680 bf_get(lpfc_fcf_record_mac_3, fcf_record),
1681 bf_get(lpfc_fcf_record_mac_4, fcf_record),
1682 bf_get(lpfc_fcf_record_mac_5, fcf_record),
1683 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
1684 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
1685 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
1686 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
1687 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
1688 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
1689 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
1690 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
1691 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
1692 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
1693 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
1694 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
1695 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
1696 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
1697 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
1698 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
1703 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1704 * @phba: pointer to lpfc hba data structure.
1705 * @fcf_rec: pointer to an existing FCF record.
1706 * @new_fcf_record: pointer to a new FCF record.
1707 * @new_vlan_id: vlan id from the new FCF record.
1709 * This function performs matching test of a new FCF record against an existing
1710 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1711 * will not be used as part of the FCF record matching criteria.
1713 * Returns true if all the fields matching, otherwise returns false.
1716 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
1717 struct lpfc_fcf_rec *fcf_rec,
1718 struct fcf_record *new_fcf_record,
1719 uint16_t new_vlan_id)
1721 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
1722 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
1724 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
1726 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
1728 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
1734 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
1735 * @phba: pointer to lpfc hba data structure.
1736 * @mboxq: pointer to mailbox object.
1738 * This function iterates through all the fcf records available in
1739 * HBA and chooses the optimal FCF record for discovery. After finding
1740 * the FCF for discovery it registers the FCF record and kicks start
1742 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
1743 * use an FCF record which matches fabric name and mac address of the
1744 * currently used FCF record.
1745 * If the driver supports only one FCF, it will try to use the FCF record
1746 * used by BOOT_BIOS.
1749 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1751 struct fcf_record *new_fcf_record;
1752 uint32_t boot_flag, addr_mode;
1753 uint16_t fcf_index, next_fcf_index;
1754 struct lpfc_fcf_rec *fcf_rec = NULL;
1757 bool select_new_fcf;
1760 /* If there is pending FCoE event restart FCF table scan */
1761 if (lpfc_check_pending_fcoe_event(phba, 0)) {
1762 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1766 /* Parse the FCF record from the non-embedded mailbox command */
1767 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
1769 if (!new_fcf_record) {
1770 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
1771 "2765 Mailbox command READ_FCF_RECORD "
1772 "failed to retrieve a FCF record.\n");
1773 /* Let next new FCF event trigger fast failover */
1774 spin_lock_irq(&phba->hbalock);
1775 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1776 spin_unlock_irq(&phba->hbalock);
1777 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1781 /* Check the FCF record against the connection list */
1782 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
1783 &addr_mode, &vlan_id);
1785 /* Log the FCF record information if turned on */
1786 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
1790 * If the fcf record does not match with connect list entries
1791 * read the next entry; otherwise, this is an eligible FCF
1792 * record for round robin FCF failover.
1795 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
1796 "2781 FCF record (x%x) failed FCF "
1797 "connection list check, fcf_avail:x%x, "
1799 bf_get(lpfc_fcf_record_fcf_index,
1801 bf_get(lpfc_fcf_record_fcf_avail,
1803 bf_get(lpfc_fcf_record_fcf_valid,
1805 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
1806 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
1807 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
1809 * In case the current in-use FCF record becomes
1810 * invalid/unavailable during FCF discovery that
1811 * was not triggered by fast FCF failover process,
1812 * treat it as fast FCF failover.
1814 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
1815 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
1816 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
1817 "2835 Invalid in-use FCF "
1818 "record (x%x) reported, "
1819 "entering fast FCF failover "
1821 phba->fcf.current_rec.fcf_indx);
1822 spin_lock_irq(&phba->hbalock);
1823 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
1824 spin_unlock_irq(&phba->hbalock);
1825 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1826 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
1827 LPFC_FCOE_FCF_GET_FIRST);
1833 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1834 rc = lpfc_sli4_fcf_rr_index_set(phba, fcf_index);
1840 * If this is not the first FCF discovery of the HBA, use last
1841 * FCF record for the discovery. The condition that a rescan
1842 * matches the in-use FCF record: fabric name, switch name, mac
1843 * address, and vlan_id.
1845 spin_lock_irq(&phba->hbalock);
1846 if (phba->fcf.fcf_flag & FCF_IN_USE) {
1847 if (lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
1848 new_fcf_record, vlan_id)) {
1849 phba->fcf.fcf_flag |= FCF_AVAILABLE;
1850 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
1851 /* Stop FCF redisc wait timer if pending */
1852 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
1853 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
1854 /* If in fast failover, mark it's completed */
1855 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV |
1857 spin_unlock_irq(&phba->hbalock);
1858 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1859 "2836 The new FCF record (x%x) "
1860 "matches the in-use FCF record "
1862 phba->fcf.current_rec.fcf_indx,
1863 bf_get(lpfc_fcf_record_fcf_index,
1868 * Read next FCF record from HBA searching for the matching
1869 * with in-use record only if not during the fast failover
1870 * period. In case of fast failover period, it shall try to
1871 * determine whether the FCF record just read should be the
1874 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
1875 spin_unlock_irq(&phba->hbalock);
1880 * Update on failover FCF record only if it's in FCF fast-failover
1881 * period; otherwise, update on current FCF record.
1883 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
1884 fcf_rec = &phba->fcf.failover_rec;
1886 fcf_rec = &phba->fcf.current_rec;
1888 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
1890 * If the driver FCF record does not have boot flag
1891 * set and new hba fcf record has boot flag set, use
1892 * the new hba fcf record.
1894 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
1895 /* Choose this FCF record */
1896 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1897 "2837 Update current FCF record "
1898 "(x%x) with new FCF record (x%x)\n",
1900 bf_get(lpfc_fcf_record_fcf_index,
1902 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
1903 addr_mode, vlan_id, BOOT_ENABLE);
1904 spin_unlock_irq(&phba->hbalock);
1908 * If the driver FCF record has boot flag set and the
1909 * new hba FCF record does not have boot flag, read
1910 * the next FCF record.
1912 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
1913 spin_unlock_irq(&phba->hbalock);
1917 * If the new hba FCF record has lower priority value
1918 * than the driver FCF record, use the new record.
1920 if (new_fcf_record->fip_priority < fcf_rec->priority) {
1921 /* Choose the new FCF record with lower priority */
1922 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1923 "2838 Update current FCF record "
1924 "(x%x) with new FCF record (x%x)\n",
1926 bf_get(lpfc_fcf_record_fcf_index,
1928 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
1929 addr_mode, vlan_id, 0);
1930 /* Reset running random FCF selection count */
1931 phba->fcf.eligible_fcf_cnt = 1;
1932 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
1933 /* Update running random FCF selection count */
1934 phba->fcf.eligible_fcf_cnt++;
1935 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
1936 phba->fcf.eligible_fcf_cnt);
1937 if (select_new_fcf) {
1938 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1939 "2839 Update current FCF record "
1940 "(x%x) with new FCF record (x%x)\n",
1942 bf_get(lpfc_fcf_record_fcf_index,
1944 /* Choose the new FCF by random selection */
1945 __lpfc_update_fcf_record(phba, fcf_rec,
1947 addr_mode, vlan_id, 0);
1950 spin_unlock_irq(&phba->hbalock);
1954 * This is the first suitable FCF record, choose this record for
1955 * initial best-fit FCF.
1958 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1959 "2840 Update current FCF record "
1960 "with initial FCF record (x%x)\n",
1961 bf_get(lpfc_fcf_record_fcf_index,
1963 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
1964 addr_mode, vlan_id, (boot_flag ?
1966 phba->fcf.fcf_flag |= FCF_AVAILABLE;
1967 /* Setup initial running random FCF selection count */
1968 phba->fcf.eligible_fcf_cnt = 1;
1969 /* Seeding the random number generator for random selection */
1970 seed = (uint32_t)(0xFFFFFFFF & jiffies);
1973 spin_unlock_irq(&phba->hbalock);
1977 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1978 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
1979 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
1981 * Case of FCF fast failover scan
1985 * It has not found any suitable FCF record, cancel
1986 * FCF scan inprogress, and do nothing
1988 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
1989 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
1990 "2782 No suitable FCF record "
1991 "found during this round of "
1992 "post FCF rediscovery scan: "
1993 "fcf_evt_tag:x%x, fcf_index: "
1995 phba->fcoe_eventtag_at_fcf_scan,
1996 bf_get(lpfc_fcf_record_fcf_index,
1999 * Let next new FCF event trigger fast
2002 spin_lock_irq(&phba->hbalock);
2003 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
2004 spin_unlock_irq(&phba->hbalock);
2008 * It has found a suitable FCF record that is not
2009 * the same as in-use FCF record, unregister the
2010 * in-use FCF record, replace the in-use FCF record
2011 * with the new FCF record, mark FCF fast failover
2012 * completed, and then start register the new FCF
2016 /* Unregister the current in-use FCF record */
2017 lpfc_unregister_fcf(phba);
2019 /* Replace in-use record with the new record */
2020 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2021 "2842 Replace the current in-use "
2022 "FCF record (x%x) with failover FCF "
2024 phba->fcf.current_rec.fcf_indx,
2025 phba->fcf.failover_rec.fcf_indx);
2026 memcpy(&phba->fcf.current_rec,
2027 &phba->fcf.failover_rec,
2028 sizeof(struct lpfc_fcf_rec));
2030 * Mark the fast FCF failover rediscovery completed
2031 * and the start of the first round of the roundrobin
2034 spin_lock_irq(&phba->hbalock);
2035 phba->fcf.fcf_flag &=
2036 ~(FCF_REDISC_FOV | FCF_REDISC_RRU);
2037 spin_unlock_irq(&phba->hbalock);
2039 * Set up the initial registered FCF index for FLOGI
2040 * round robin FCF failover.
2042 phba->fcf.fcf_rr_init_indx =
2043 phba->fcf.failover_rec.fcf_indx;
2044 /* Register to the new FCF record */
2045 lpfc_register_fcf(phba);
2048 * In case of transaction period to fast FCF failover,
2049 * do nothing when search to the end of the FCF table.
2051 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
2052 (phba->fcf.fcf_flag & FCF_REDISC_PEND))
2055 if (phba->fcf.fcf_flag & FCF_IN_USE) {
2057 * In case the current in-use FCF record no
2058 * longer existed during FCF discovery that
2059 * was not triggered by fast FCF failover
2060 * process, treat it as fast FCF failover.
2062 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2063 "2841 In-use FCF record (x%x) "
2064 "not reported, entering fast "
2065 "FCF failover mode scanning.\n",
2066 phba->fcf.current_rec.fcf_indx);
2067 spin_lock_irq(&phba->hbalock);
2068 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2069 spin_unlock_irq(&phba->hbalock);
2070 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2071 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2072 LPFC_FCOE_FCF_GET_FIRST);
2077 * Otherwise, initial scan or post linkdown rescan,
2078 * register with the best FCF record found so far
2079 * through the FCF scanning process.
2083 * Mark the initial FCF discovery completed and
2084 * the start of the first round of the roundrobin
2087 spin_lock_irq(&phba->hbalock);
2088 phba->fcf.fcf_flag &=
2089 ~(FCF_INIT_DISC | FCF_REDISC_RRU);
2090 spin_unlock_irq(&phba->hbalock);
2092 * Set up the initial registered FCF index for FLOGI
2093 * round robin FCF failover
2095 phba->fcf.fcf_rr_init_indx =
2096 phba->fcf.current_rec.fcf_indx;
2097 /* Register to the new FCF record */
2098 lpfc_register_fcf(phba);
2101 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
2105 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2106 lpfc_register_fcf(phba);
2112 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf round robin read_fcf mbox cmpl hdler
2113 * @phba: pointer to lpfc hba data structure.
2114 * @mboxq: pointer to mailbox object.
2116 * This is the callback function for FLOGI failure round robin FCF failover
2117 * read FCF record mailbox command from the eligible FCF record bmask for
2118 * performing the failover. If the FCF read back is not valid/available, it
2119 * fails through to retrying FLOGI to the currently registered FCF again.
2120 * Otherwise, if the FCF read back is valid and available, it will set the
2121 * newly read FCF record to the failover FCF record, unregister currently
2122 * registered FCF record, copy the failover FCF record to the current
2123 * FCF record, and then register the current FCF record before proceeding
2124 * to trying FLOGI on the new failover FCF.
2127 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2129 struct fcf_record *new_fcf_record;
2130 uint32_t boot_flag, addr_mode;
2131 uint16_t next_fcf_index;
2132 uint16_t current_fcf_index;
2135 /* If link state is not up, stop the round robin failover process */
2136 if (phba->link_state < LPFC_LINK_UP) {
2137 spin_lock_irq(&phba->hbalock);
2138 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
2139 spin_unlock_irq(&phba->hbalock);
2140 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2144 /* Parse the FCF record from the non-embedded mailbox command */
2145 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2147 if (!new_fcf_record) {
2148 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2149 "2766 Mailbox command READ_FCF_RECORD "
2150 "failed to retrieve a FCF record.\n");
2154 /* Get the needed parameters from FCF record */
2155 lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2156 &addr_mode, &vlan_id);
2158 /* Log the FCF record information if turned on */
2159 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2162 /* Upload new FCF record to the failover FCF record */
2163 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2164 "2834 Update the current FCF record (x%x) "
2165 "with the next FCF record (x%x)\n",
2166 phba->fcf.failover_rec.fcf_indx,
2167 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record));
2168 spin_lock_irq(&phba->hbalock);
2169 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2170 new_fcf_record, addr_mode, vlan_id,
2171 (boot_flag ? BOOT_ENABLE : 0));
2172 spin_unlock_irq(&phba->hbalock);
2174 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2176 /* Unregister the current in-use FCF record */
2177 lpfc_unregister_fcf(phba);
2179 /* Replace in-use record with the new record */
2180 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2181 sizeof(struct lpfc_fcf_rec));
2183 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2184 "2783 FLOGI round robin FCF failover from FCF "
2185 "(x%x) to FCF (x%x).\n",
2187 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record));
2190 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2191 lpfc_register_fcf(phba);
2195 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2196 * @phba: pointer to lpfc hba data structure.
2197 * @mboxq: pointer to mailbox object.
2199 * This is the callback function of read FCF record mailbox command for
2200 * updating the eligible FCF bmask for FLOGI failure round robin FCF
2201 * failover when a new FCF event happened. If the FCF read back is
2202 * valid/available and it passes the connection list check, it updates
2203 * the bmask for the eligible FCF record for round robin failover.
2206 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2208 struct fcf_record *new_fcf_record;
2209 uint32_t boot_flag, addr_mode;
2210 uint16_t fcf_index, next_fcf_index;
2214 /* If link state is not up, no need to proceed */
2215 if (phba->link_state < LPFC_LINK_UP)
2218 /* If FCF discovery period is over, no need to proceed */
2219 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
2222 /* Parse the FCF record from the non-embedded mailbox command */
2223 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2225 if (!new_fcf_record) {
2226 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2227 "2767 Mailbox command READ_FCF_RECORD "
2228 "failed to retrieve a FCF record.\n");
2232 /* Check the connection list for eligibility */
2233 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2234 &addr_mode, &vlan_id);
2236 /* Log the FCF record information if turned on */
2237 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2243 /* Update the eligible FCF record index bmask */
2244 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2245 rc = lpfc_sli4_fcf_rr_index_set(phba, fcf_index);
2248 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2252 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2253 * @phba: pointer to lpfc hba data structure.
2254 * @mboxq: pointer to mailbox data structure.
2256 * This function handles completion of init vpi mailbox command.
2259 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2261 struct lpfc_vport *vport = mboxq->vport;
2262 struct lpfc_nodelist *ndlp;
2263 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2265 if (mboxq->u.mb.mbxStatus) {
2266 lpfc_printf_vlog(vport, KERN_ERR,
2268 "2609 Init VPI mailbox failed 0x%x\n",
2269 mboxq->u.mb.mbxStatus);
2270 mempool_free(mboxq, phba->mbox_mem_pool);
2271 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2274 spin_lock_irq(shost->host_lock);
2275 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
2276 spin_unlock_irq(shost->host_lock);
2278 /* If this port is physical port or FDISC is done, do reg_vpi */
2279 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
2280 ndlp = lpfc_findnode_did(vport, Fabric_DID);
2282 lpfc_printf_vlog(vport, KERN_ERR,
2284 "2731 Cannot find fabric "
2285 "controller node\n");
2287 lpfc_register_new_vport(phba, vport, ndlp);
2288 mempool_free(mboxq, phba->mbox_mem_pool);
2292 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2293 lpfc_initial_fdisc(vport);
2295 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
2296 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2297 "2606 No NPIV Fabric support\n");
2299 mempool_free(mboxq, phba->mbox_mem_pool);
2304 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2305 * @vport: pointer to lpfc_vport data structure.
2307 * This function issue a init_vpi mailbox command to initialize
2308 * VPI for the vport.
2311 lpfc_issue_init_vpi(struct lpfc_vport *vport)
2313 LPFC_MBOXQ_t *mboxq;
2316 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
2318 lpfc_printf_vlog(vport, KERN_ERR,
2319 LOG_MBOX, "2607 Failed to allocate "
2320 "init_vpi mailbox\n");
2323 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
2324 mboxq->vport = vport;
2325 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
2326 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
2327 if (rc == MBX_NOT_FINISHED) {
2328 lpfc_printf_vlog(vport, KERN_ERR,
2329 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
2330 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2335 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2336 * @phba: pointer to lpfc hba data structure.
2338 * This function loops through the list of vports on the @phba and issues an
2339 * FDISC if possible.
2342 lpfc_start_fdiscs(struct lpfc_hba *phba)
2344 struct lpfc_vport **vports;
2347 vports = lpfc_create_vport_work_array(phba);
2348 if (vports != NULL) {
2349 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2350 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
2352 /* There are no vpi for this vport */
2353 if (vports[i]->vpi > phba->max_vpi) {
2354 lpfc_vport_set_state(vports[i],
2358 if (phba->fc_topology == TOPOLOGY_LOOP) {
2359 lpfc_vport_set_state(vports[i],
2363 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
2364 lpfc_issue_init_vpi(vports[i]);
2367 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2368 lpfc_initial_fdisc(vports[i]);
2370 lpfc_vport_set_state(vports[i],
2371 FC_VPORT_NO_FABRIC_SUPP);
2372 lpfc_printf_vlog(vports[i], KERN_ERR,
2375 "Fabric support\n");
2379 lpfc_destroy_vport_work_array(phba, vports);
2383 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2385 struct lpfc_dmabuf *dmabuf = mboxq->context1;
2386 struct lpfc_vport *vport = mboxq->vport;
2387 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2389 if (mboxq->u.mb.mbxStatus) {
2390 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2391 "2018 REG_VFI mbxStatus error x%x "
2393 mboxq->u.mb.mbxStatus, vport->port_state);
2394 if (phba->fc_topology == TOPOLOGY_LOOP) {
2395 /* FLOGI failed, use loop map to make discovery list */
2396 lpfc_disc_list_loopmap(vport);
2397 /* Start discovery */
2398 lpfc_disc_start(vport);
2401 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2404 /* The VPI is implicitly registered when the VFI is registered */
2405 spin_lock_irq(shost->host_lock);
2406 vport->vpi_state |= LPFC_VPI_REGISTERED;
2407 vport->fc_flag |= FC_VFI_REGISTERED;
2408 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2409 spin_unlock_irq(shost->host_lock);
2411 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
2412 lpfc_start_fdiscs(phba);
2413 lpfc_do_scr_ns_plogi(phba, vport);
2417 mempool_free(mboxq, phba->mbox_mem_pool);
2418 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
2424 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2426 MAILBOX_t *mb = &pmb->u.mb;
2427 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
2428 struct lpfc_vport *vport = pmb->vport;
2431 /* Check for error */
2432 if (mb->mbxStatus) {
2433 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
2434 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2435 "0319 READ_SPARAM mbxStatus error x%x "
2437 mb->mbxStatus, vport->port_state);
2438 lpfc_linkdown(phba);
2442 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
2443 sizeof (struct serv_parm));
2444 if (phba->cfg_soft_wwnn)
2445 u64_to_wwn(phba->cfg_soft_wwnn,
2446 vport->fc_sparam.nodeName.u.wwn);
2447 if (phba->cfg_soft_wwpn)
2448 u64_to_wwn(phba->cfg_soft_wwpn,
2449 vport->fc_sparam.portName.u.wwn);
2450 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
2451 sizeof(vport->fc_nodename));
2452 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
2453 sizeof(vport->fc_portname));
2454 if (vport->port_type == LPFC_PHYSICAL_PORT) {
2455 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
2456 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
2459 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2461 mempool_free(pmb, phba->mbox_mem_pool);
2465 pmb->context1 = NULL;
2466 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2468 lpfc_issue_clear_la(phba, vport);
2469 mempool_free(pmb, phba->mbox_mem_pool);
2474 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
2476 struct lpfc_vport *vport = phba->pport;
2477 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
2479 struct lpfc_dmabuf *mp;
2481 struct fcf_record *fcf_record;
2483 spin_lock_irq(&phba->hbalock);
2484 switch (la->UlnkSpeed) {
2486 phba->fc_linkspeed = LA_1GHZ_LINK;
2489 phba->fc_linkspeed = LA_2GHZ_LINK;
2492 phba->fc_linkspeed = LA_4GHZ_LINK;
2495 phba->fc_linkspeed = LA_8GHZ_LINK;
2498 phba->fc_linkspeed = LA_10GHZ_LINK;
2501 phba->fc_linkspeed = LA_UNKNW_LINK;
2505 phba->fc_topology = la->topology;
2506 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
2508 if (phba->fc_topology == TOPOLOGY_LOOP) {
2509 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
2511 /* if npiv is enabled and this adapter supports npiv log
2512 * a message that npiv is not supported in this topology
2514 if (phba->cfg_enable_npiv && phba->max_vpi)
2515 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2516 "1309 Link Up Event npiv not supported in loop "
2518 /* Get Loop Map information */
2520 vport->fc_flag |= FC_LBIT;
2522 vport->fc_myDID = la->granted_AL_PA;
2523 i = la->un.lilpBde64.tus.f.bdeSize;
2526 phba->alpa_map[0] = 0;
2528 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
2539 numalpa = phba->alpa_map[0];
2541 while (j < numalpa) {
2542 memset(un.pamap, 0, 16);
2543 for (k = 1; j < numalpa; k++) {
2545 phba->alpa_map[j + 1];
2550 /* Link Up Event ALPA map */
2551 lpfc_printf_log(phba,
2554 "1304 Link Up Event "
2555 "ALPA map Data: x%x "
2557 un.pa.wd1, un.pa.wd2,
2558 un.pa.wd3, un.pa.wd4);
2563 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
2564 if (phba->max_vpi && phba->cfg_enable_npiv &&
2565 (phba->sli_rev == 3))
2566 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
2568 vport->fc_myDID = phba->fc_pref_DID;
2569 vport->fc_flag |= FC_LBIT;
2571 spin_unlock_irq(&phba->hbalock);
2574 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2578 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
2580 mempool_free(sparam_mbox, phba->mbox_mem_pool);
2583 sparam_mbox->vport = vport;
2584 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
2585 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
2586 if (rc == MBX_NOT_FINISHED) {
2587 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
2588 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2590 mempool_free(sparam_mbox, phba->mbox_mem_pool);
2594 if (!(phba->hba_flag & HBA_FCOE_SUPPORT)) {
2595 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2598 vport->port_state = LPFC_LOCAL_CFG_LINK;
2599 lpfc_config_link(phba, cfglink_mbox);
2600 cfglink_mbox->vport = vport;
2601 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
2602 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
2603 if (rc == MBX_NOT_FINISHED) {
2604 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
2608 vport->port_state = LPFC_VPORT_UNKNOWN;
2610 * Add the driver's default FCF record at FCF index 0 now. This
2611 * is phase 1 implementation that support FCF index 0 and driver
2614 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
2615 fcf_record = kzalloc(sizeof(struct fcf_record),
2617 if (unlikely(!fcf_record)) {
2618 lpfc_printf_log(phba, KERN_ERR,
2620 "2554 Could not allocate memmory for "
2626 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
2627 LPFC_FCOE_FCF_DEF_INDEX);
2628 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
2630 lpfc_printf_log(phba, KERN_ERR,
2632 "2013 Could not manually add FCF "
2633 "record 0, status %d\n", rc);
2641 * The driver is expected to do FIP/FCF. Call the port
2642 * and get the FCF Table.
2644 spin_lock_irq(&phba->hbalock);
2645 if (phba->hba_flag & FCF_DISC_INPROGRESS) {
2646 spin_unlock_irq(&phba->hbalock);
2649 /* This is the initial FCF discovery scan */
2650 phba->fcf.fcf_flag |= FCF_INIT_DISC;
2651 spin_unlock_irq(&phba->hbalock);
2652 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
2653 "2778 Start FCF table scan at linkup\n");
2655 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2656 LPFC_FCOE_FCF_GET_FIRST);
2658 spin_lock_irq(&phba->hbalock);
2659 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
2660 spin_unlock_irq(&phba->hbalock);
2667 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2668 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2669 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
2670 vport->port_state, sparam_mbox, cfglink_mbox);
2671 lpfc_issue_clear_la(phba, vport);
2676 lpfc_enable_la(struct lpfc_hba *phba)
2679 struct lpfc_sli *psli = &phba->sli;
2680 spin_lock_irq(&phba->hbalock);
2681 psli->sli_flag |= LPFC_PROCESS_LA;
2682 if (phba->sli_rev <= LPFC_SLI_REV3) {
2683 control = readl(phba->HCregaddr);
2684 control |= HC_LAINT_ENA;
2685 writel(control, phba->HCregaddr);
2686 readl(phba->HCregaddr); /* flush */
2688 spin_unlock_irq(&phba->hbalock);
2692 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
2694 lpfc_linkdown(phba);
2695 lpfc_enable_la(phba);
2696 lpfc_unregister_unused_fcf(phba);
2697 /* turn on Link Attention interrupts - no CLEAR_LA needed */
2702 * This routine handles processing a READ_LA mailbox
2703 * command upon completion. It is setup in the LPFC_MBOXQ
2704 * as the completion routine when the command is
2705 * handed off to the SLI layer.
2708 lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2710 struct lpfc_vport *vport = pmb->vport;
2711 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2713 MAILBOX_t *mb = &pmb->u.mb;
2714 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2716 /* Unblock ELS traffic */
2717 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2718 /* Check for error */
2719 if (mb->mbxStatus) {
2720 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
2721 "1307 READ_LA mbox error x%x state x%x\n",
2722 mb->mbxStatus, vport->port_state);
2723 lpfc_mbx_issue_link_down(phba);
2724 phba->link_state = LPFC_HBA_ERROR;
2725 goto lpfc_mbx_cmpl_read_la_free_mbuf;
2728 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
2730 memcpy(&phba->alpa_map[0], mp->virt, 128);
2732 spin_lock_irq(shost->host_lock);
2734 vport->fc_flag |= FC_BYPASSED_MODE;
2736 vport->fc_flag &= ~FC_BYPASSED_MODE;
2737 spin_unlock_irq(shost->host_lock);
2739 if ((phba->fc_eventTag < la->eventTag) ||
2740 (phba->fc_eventTag == la->eventTag)) {
2741 phba->fc_stat.LinkMultiEvent++;
2742 if (la->attType == AT_LINK_UP)
2743 if (phba->fc_eventTag != 0)
2744 lpfc_linkdown(phba);
2747 phba->fc_eventTag = la->eventTag;
2748 spin_lock_irq(&phba->hbalock);
2750 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
2752 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
2753 spin_unlock_irq(&phba->hbalock);
2755 phba->link_events++;
2756 if (la->attType == AT_LINK_UP && (!la->mm)) {
2757 phba->fc_stat.LinkUp++;
2758 if (phba->link_flag & LS_LOOPBACK_MODE) {
2759 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2760 "1306 Link Up Event in loop back mode "
2761 "x%x received Data: x%x x%x x%x x%x\n",
2762 la->eventTag, phba->fc_eventTag,
2763 la->granted_AL_PA, la->UlnkSpeed,
2766 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2767 "1303 Link Up Event x%x received "
2768 "Data: x%x x%x x%x x%x x%x x%x %d\n",
2769 la->eventTag, phba->fc_eventTag,
2770 la->granted_AL_PA, la->UlnkSpeed,
2773 phba->wait_4_mlo_maint_flg);
2775 lpfc_mbx_process_link_up(phba, la);
2776 } else if (la->attType == AT_LINK_DOWN) {
2777 phba->fc_stat.LinkDown++;
2778 if (phba->link_flag & LS_LOOPBACK_MODE) {
2779 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2780 "1308 Link Down Event in loop back mode "
2782 "Data: x%x x%x x%x\n",
2783 la->eventTag, phba->fc_eventTag,
2784 phba->pport->port_state, vport->fc_flag);
2787 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2788 "1305 Link Down Event x%x received "
2789 "Data: x%x x%x x%x x%x x%x\n",
2790 la->eventTag, phba->fc_eventTag,
2791 phba->pport->port_state, vport->fc_flag,
2794 lpfc_mbx_issue_link_down(phba);
2796 if (la->mm && la->attType == AT_LINK_UP) {
2797 if (phba->link_state != LPFC_LINK_DOWN) {
2798 phba->fc_stat.LinkDown++;
2799 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2800 "1312 Link Down Event x%x received "
2801 "Data: x%x x%x x%x\n",
2802 la->eventTag, phba->fc_eventTag,
2803 phba->pport->port_state, vport->fc_flag);
2804 lpfc_mbx_issue_link_down(phba);
2806 lpfc_enable_la(phba);
2808 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2809 "1310 Menlo Maint Mode Link up Event x%x rcvd "
2810 "Data: x%x x%x x%x\n",
2811 la->eventTag, phba->fc_eventTag,
2812 phba->pport->port_state, vport->fc_flag);
2814 * The cmnd that triggered this will be waiting for this
2817 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
2818 if (phba->wait_4_mlo_maint_flg) {
2819 phba->wait_4_mlo_maint_flg = 0;
2820 wake_up_interruptible(&phba->wait_4_mlo_m_q);
2826 lpfc_issue_clear_la(phba, vport);
2827 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
2828 "1311 fa %d\n", la->fa);
2831 lpfc_mbx_cmpl_read_la_free_mbuf:
2832 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2834 mempool_free(pmb, phba->mbox_mem_pool);
2839 * This routine handles processing a REG_LOGIN mailbox
2840 * command upon completion. It is setup in the LPFC_MBOXQ
2841 * as the completion routine when the command is
2842 * handed off to the SLI layer.
2845 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2847 struct lpfc_vport *vport = pmb->vport;
2848 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2849 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2850 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2852 pmb->context1 = NULL;
2854 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
2855 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
2857 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
2858 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
2859 /* We rcvd a rscn after issuing this
2860 * mbox reg login, we may have cycled
2861 * back through the state and be
2862 * back at reg login state so this
2863 * mbox needs to be ignored becase
2864 * there is another reg login in
2867 spin_lock_irq(shost->host_lock);
2868 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
2869 spin_unlock_irq(shost->host_lock);
2870 if (phba->sli_rev == LPFC_SLI_REV4)
2871 lpfc_sli4_free_rpi(phba,
2872 pmb->u.mb.un.varRegLogin.rpi);
2875 /* Good status, call state machine */
2876 lpfc_disc_state_machine(vport, ndlp, pmb,
2877 NLP_EVT_CMPL_REG_LOGIN);
2879 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2881 mempool_free(pmb, phba->mbox_mem_pool);
2882 /* decrement the node reference count held for this callback
2891 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2893 MAILBOX_t *mb = &pmb->u.mb;
2894 struct lpfc_vport *vport = pmb->vport;
2895 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2897 switch (mb->mbxStatus) {
2900 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2901 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
2904 /* If VPI is busy, reset the HBA */
2906 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
2907 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
2908 vport->vpi, mb->mbxStatus);
2909 if (!(phba->pport->load_flag & FC_UNLOADING))
2910 lpfc_workq_post_event(phba, NULL, NULL,
2911 LPFC_EVT_RESET_HBA);
2913 spin_lock_irq(shost->host_lock);
2914 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
2915 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2916 spin_unlock_irq(shost->host_lock);
2917 vport->unreg_vpi_cmpl = VPORT_OK;
2918 mempool_free(pmb, phba->mbox_mem_pool);
2920 * This shost reference might have been taken at the beginning of
2921 * lpfc_vport_delete()
2923 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
2924 scsi_host_put(shost);
2928 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
2930 struct lpfc_hba *phba = vport->phba;
2934 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2938 lpfc_unreg_vpi(phba, vport->vpi, mbox);
2939 mbox->vport = vport;
2940 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
2941 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2942 if (rc == MBX_NOT_FINISHED) {
2943 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
2944 "1800 Could not issue unreg_vpi\n");
2945 mempool_free(mbox, phba->mbox_mem_pool);
2946 vport->unreg_vpi_cmpl = VPORT_ERROR;
2953 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2955 struct lpfc_vport *vport = pmb->vport;
2956 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2957 MAILBOX_t *mb = &pmb->u.mb;
2959 switch (mb->mbxStatus) {
2963 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2964 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
2966 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2967 spin_lock_irq(shost->host_lock);
2968 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2969 spin_unlock_irq(shost->host_lock);
2970 vport->fc_myDID = 0;
2974 spin_lock_irq(shost->host_lock);
2975 vport->vpi_state |= LPFC_VPI_REGISTERED;
2976 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2977 spin_unlock_irq(shost->host_lock);
2978 vport->num_disc_nodes = 0;
2979 /* go thru NPR list and issue ELS PLOGIs */
2980 if (vport->fc_npr_cnt)
2981 lpfc_els_disc_plogi(vport);
2983 if (!vport->num_disc_nodes) {
2984 spin_lock_irq(shost->host_lock);
2985 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2986 spin_unlock_irq(shost->host_lock);
2987 lpfc_can_disctmo(vport);
2989 vport->port_state = LPFC_VPORT_READY;
2992 mempool_free(pmb, phba->mbox_mem_pool);
2997 * lpfc_create_static_vport - Read HBA config region to create static vports.
2998 * @phba: pointer to lpfc hba data structure.
3000 * This routine issue a DUMP mailbox command for config region 22 to get
3001 * the list of static vports to be created. The function create vports
3002 * based on the information returned from the HBA.
3005 lpfc_create_static_vport(struct lpfc_hba *phba)
3007 LPFC_MBOXQ_t *pmb = NULL;
3009 struct static_vport_info *vport_info;
3011 struct fc_vport_identifiers vport_id;
3012 struct fc_vport *new_fc_vport;
3013 struct Scsi_Host *shost;
3014 struct lpfc_vport *vport;
3015 uint16_t offset = 0;
3016 uint8_t *vport_buff;
3017 struct lpfc_dmabuf *mp;
3018 uint32_t byte_count = 0;
3020 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3022 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3023 "0542 lpfc_create_static_vport failed to"
3024 " allocate mailbox memory\n");
3030 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
3032 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3033 "0543 lpfc_create_static_vport failed to"
3034 " allocate vport_info\n");
3035 mempool_free(pmb, phba->mbox_mem_pool);
3039 vport_buff = (uint8_t *) vport_info;
3041 if (lpfc_dump_static_vport(phba, pmb, offset))
3044 pmb->vport = phba->pport;
3045 rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO);
3047 if ((rc != MBX_SUCCESS) || mb->mbxStatus) {
3048 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3049 "0544 lpfc_create_static_vport failed to"
3050 " issue dump mailbox command ret 0x%x "
3056 if (phba->sli_rev == LPFC_SLI_REV4) {
3057 byte_count = pmb->u.mqe.un.mb_words[5];
3058 mp = (struct lpfc_dmabuf *) pmb->context2;
3059 if (byte_count > sizeof(struct static_vport_info) -
3061 byte_count = sizeof(struct static_vport_info)
3063 memcpy(vport_buff + offset, mp->virt, byte_count);
3064 offset += byte_count;
3066 if (mb->un.varDmp.word_cnt >
3067 sizeof(struct static_vport_info) - offset)
3068 mb->un.varDmp.word_cnt =
3069 sizeof(struct static_vport_info)
3071 byte_count = mb->un.varDmp.word_cnt;
3072 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
3073 vport_buff + offset,
3076 offset += byte_count;
3079 } while (byte_count &&
3080 offset < sizeof(struct static_vport_info));
3083 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
3084 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
3085 != VPORT_INFO_REV)) {
3086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3087 "0545 lpfc_create_static_vport bad"
3088 " information header 0x%x 0x%x\n",
3089 le32_to_cpu(vport_info->signature),
3090 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
3095 shost = lpfc_shost_from_vport(phba->pport);
3097 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
3098 memset(&vport_id, 0, sizeof(vport_id));
3099 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
3100 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
3101 if (!vport_id.port_name || !vport_id.node_name)
3104 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
3105 vport_id.vport_type = FC_PORTTYPE_NPIV;
3106 vport_id.disable = false;
3107 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
3109 if (!new_fc_vport) {
3110 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3111 "0546 lpfc_create_static_vport failed to"
3116 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
3117 vport->vport_flag |= STATIC_VPORT;
3122 if (rc != MBX_TIMEOUT) {
3123 if (pmb->context2) {
3124 mp = (struct lpfc_dmabuf *) pmb->context2;
3125 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3128 mempool_free(pmb, phba->mbox_mem_pool);
3135 * This routine handles processing a Fabric REG_LOGIN mailbox
3136 * command upon completion. It is setup in the LPFC_MBOXQ
3137 * as the completion routine when the command is
3138 * handed off to the SLI layer.
3141 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3143 struct lpfc_vport *vport = pmb->vport;
3144 MAILBOX_t *mb = &pmb->u.mb;
3145 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3146 struct lpfc_nodelist *ndlp;
3148 ndlp = (struct lpfc_nodelist *) pmb->context2;
3149 pmb->context1 = NULL;
3150 pmb->context2 = NULL;
3151 if (mb->mbxStatus) {
3152 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3153 "0258 Register Fabric login error: 0x%x\n",
3155 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3157 mempool_free(pmb, phba->mbox_mem_pool);
3159 if (phba->fc_topology == TOPOLOGY_LOOP) {
3160 /* FLOGI failed, use loop map to make discovery list */
3161 lpfc_disc_list_loopmap(vport);
3163 /* Start discovery */
3164 lpfc_disc_start(vport);
3165 /* Decrement the reference count to ndlp after the
3166 * reference to the ndlp are done.
3172 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3173 /* Decrement the reference count to ndlp after the reference
3174 * to the ndlp are done.
3180 ndlp->nlp_rpi = mb->un.varWords[0];
3181 ndlp->nlp_flag |= NLP_RPI_VALID;
3182 ndlp->nlp_type |= NLP_FABRIC;
3183 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3185 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3186 /* when physical port receive logo donot start
3187 * vport discovery */
3188 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
3189 lpfc_start_fdiscs(phba);
3191 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
3192 lpfc_do_scr_ns_plogi(phba, vport);
3195 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3197 mempool_free(pmb, phba->mbox_mem_pool);
3199 /* Drop the reference count from the mbox at the end after
3200 * all the current reference to the ndlp have been done.
3207 * This routine handles processing a NameServer REG_LOGIN mailbox
3208 * command upon completion. It is setup in the LPFC_MBOXQ
3209 * as the completion routine when the command is
3210 * handed off to the SLI layer.
3213 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3215 MAILBOX_t *mb = &pmb->u.mb;
3216 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3217 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3218 struct lpfc_vport *vport = pmb->vport;
3220 if (mb->mbxStatus) {
3222 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3223 "0260 Register NameServer error: 0x%x\n",
3225 /* decrement the node reference count held for this
3226 * callback function.
3229 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3231 mempool_free(pmb, phba->mbox_mem_pool);
3233 /* If no other thread is using the ndlp, free it */
3234 lpfc_nlp_not_used(ndlp);
3236 if (phba->fc_topology == TOPOLOGY_LOOP) {
3238 * RegLogin failed, use loop map to make discovery
3241 lpfc_disc_list_loopmap(vport);
3243 /* Start discovery */
3244 lpfc_disc_start(vport);
3247 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3251 pmb->context1 = NULL;
3253 ndlp->nlp_rpi = mb->un.varWords[0];
3254 ndlp->nlp_flag |= NLP_RPI_VALID;
3255 ndlp->nlp_type |= NLP_FABRIC;
3256 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3258 if (vport->port_state < LPFC_VPORT_READY) {
3259 /* Link up discovery requires Fabric registration. */
3260 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
3261 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
3262 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
3263 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
3264 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
3266 /* Issue SCR just before NameServer GID_FT Query */
3267 lpfc_issue_els_scr(vport, SCR_DID, 0);
3270 vport->fc_ns_retry = 0;
3271 /* Good status, issue CT Request to NameServer */
3272 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
3273 /* Cannot issue NameServer Query, so finish up discovery */
3277 /* decrement the node reference count held for this
3278 * callback function.
3281 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3283 mempool_free(pmb, phba->mbox_mem_pool);
3289 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3291 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3292 struct fc_rport *rport;
3293 struct lpfc_rport_data *rdata;
3294 struct fc_rport_identifiers rport_ids;
3295 struct lpfc_hba *phba = vport->phba;
3297 /* Remote port has reappeared. Re-register w/ FC transport */
3298 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
3299 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
3300 rport_ids.port_id = ndlp->nlp_DID;
3301 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
3304 * We leave our node pointer in rport->dd_data when we unregister a
3305 * FCP target port. But fc_remote_port_add zeros the space to which
3306 * rport->dd_data points. So, if we're reusing a previously
3307 * registered port, drop the reference that we took the last time we
3308 * registered the port.
3310 if (ndlp->rport && ndlp->rport->dd_data &&
3311 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
3314 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
3315 "rport add: did:x%x flg:x%x type x%x",
3316 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3318 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
3319 if (!rport || !get_device(&rport->dev)) {
3320 dev_printk(KERN_WARNING, &phba->pcidev->dev,
3321 "Warning: fc_remote_port_add failed\n");
3325 /* initialize static port data */
3326 rport->maxframe_size = ndlp->nlp_maxframe;
3327 rport->supported_classes = ndlp->nlp_class_sup;
3328 rdata = rport->dd_data;
3329 rdata->pnode = lpfc_nlp_get(ndlp);
3331 if (ndlp->nlp_type & NLP_FCP_TARGET)
3332 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
3333 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
3334 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
3337 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
3338 fc_remote_port_rolechg(rport, rport_ids.roles);
3340 if ((rport->scsi_target_id != -1) &&
3341 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
3342 ndlp->nlp_sid = rport->scsi_target_id;
3348 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
3350 struct fc_rport *rport = ndlp->rport;
3352 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
3353 "rport delete: did:x%x flg:x%x type x%x",
3354 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3356 fc_remote_port_delete(rport);
3362 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
3364 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3366 spin_lock_irq(shost->host_lock);
3368 case NLP_STE_UNUSED_NODE:
3369 vport->fc_unused_cnt += count;
3371 case NLP_STE_PLOGI_ISSUE:
3372 vport->fc_plogi_cnt += count;
3374 case NLP_STE_ADISC_ISSUE:
3375 vport->fc_adisc_cnt += count;
3377 case NLP_STE_REG_LOGIN_ISSUE:
3378 vport->fc_reglogin_cnt += count;
3380 case NLP_STE_PRLI_ISSUE:
3381 vport->fc_prli_cnt += count;
3383 case NLP_STE_UNMAPPED_NODE:
3384 vport->fc_unmap_cnt += count;
3386 case NLP_STE_MAPPED_NODE:
3387 vport->fc_map_cnt += count;
3389 case NLP_STE_NPR_NODE:
3390 vport->fc_npr_cnt += count;
3393 spin_unlock_irq(shost->host_lock);
3397 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3398 int old_state, int new_state)
3400 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3402 if (new_state == NLP_STE_UNMAPPED_NODE) {
3403 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
3404 ndlp->nlp_type |= NLP_FC_NODE;
3406 if (new_state == NLP_STE_MAPPED_NODE)
3407 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
3408 if (new_state == NLP_STE_NPR_NODE)
3409 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
3411 /* Transport interface */
3412 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
3413 old_state == NLP_STE_UNMAPPED_NODE)) {
3414 vport->phba->nport_event_cnt++;
3415 lpfc_unregister_remote_port(ndlp);
3418 if (new_state == NLP_STE_MAPPED_NODE ||
3419 new_state == NLP_STE_UNMAPPED_NODE) {
3420 vport->phba->nport_event_cnt++;
3422 * Tell the fc transport about the port, if we haven't
3423 * already. If we have, and it's a scsi entity, be
3424 * sure to unblock any attached scsi devices
3426 lpfc_register_remote_port(vport, ndlp);
3428 if ((new_state == NLP_STE_MAPPED_NODE) &&
3429 (vport->stat_data_enabled)) {
3431 * A new target is discovered, if there is no buffer for
3432 * statistical data collection allocate buffer.
3434 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
3435 sizeof(struct lpfc_scsicmd_bkt),
3438 if (!ndlp->lat_data)
3439 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3440 "0286 lpfc_nlp_state_cleanup failed to "
3441 "allocate statistical data buffer DID "
3442 "0x%x\n", ndlp->nlp_DID);
3445 * if we added to Mapped list, but the remote port
3446 * registration failed or assigned a target id outside
3447 * our presentable range - move the node to the
3450 if (new_state == NLP_STE_MAPPED_NODE &&
3452 ndlp->rport->scsi_target_id == -1 ||
3453 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
3454 spin_lock_irq(shost->host_lock);
3455 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
3456 spin_unlock_irq(shost->host_lock);
3457 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3462 lpfc_nlp_state_name(char *buffer, size_t size, int state)
3464 static char *states[] = {
3465 [NLP_STE_UNUSED_NODE] = "UNUSED",
3466 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
3467 [NLP_STE_ADISC_ISSUE] = "ADISC",
3468 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
3469 [NLP_STE_PRLI_ISSUE] = "PRLI",
3470 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
3471 [NLP_STE_MAPPED_NODE] = "MAPPED",
3472 [NLP_STE_NPR_NODE] = "NPR",
3475 if (state < NLP_STE_MAX_STATE && states[state])
3476 strlcpy(buffer, states[state], size);
3478 snprintf(buffer, size, "unknown (%d)", state);
3483 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3486 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3487 int old_state = ndlp->nlp_state;
3488 char name1[16], name2[16];
3490 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3491 "0904 NPort state transition x%06x, %s -> %s\n",
3493 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
3494 lpfc_nlp_state_name(name2, sizeof(name2), state));
3496 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
3497 "node statechg did:x%x old:%d ste:%d",
3498 ndlp->nlp_DID, old_state, state);
3500 if (old_state == NLP_STE_NPR_NODE &&
3501 state != NLP_STE_NPR_NODE)
3502 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3503 if (old_state == NLP_STE_UNMAPPED_NODE) {
3504 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
3505 ndlp->nlp_type &= ~NLP_FC_NODE;
3508 if (list_empty(&ndlp->nlp_listp)) {
3509 spin_lock_irq(shost->host_lock);
3510 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
3511 spin_unlock_irq(shost->host_lock);
3512 } else if (old_state)
3513 lpfc_nlp_counters(vport, old_state, -1);
3515 ndlp->nlp_state = state;
3516 lpfc_nlp_counters(vport, state, 1);
3517 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
3521 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3523 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3525 if (list_empty(&ndlp->nlp_listp)) {
3526 spin_lock_irq(shost->host_lock);
3527 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
3528 spin_unlock_irq(shost->host_lock);
3533 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3535 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3537 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3538 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
3539 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
3540 spin_lock_irq(shost->host_lock);
3541 list_del_init(&ndlp->nlp_listp);
3542 spin_unlock_irq(shost->host_lock);
3543 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
3544 NLP_STE_UNUSED_NODE);
3548 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3550 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3551 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
3552 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
3553 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
3554 NLP_STE_UNUSED_NODE);
3557 * lpfc_initialize_node - Initialize all fields of node object
3558 * @vport: Pointer to Virtual Port object.
3559 * @ndlp: Pointer to FC node object.
3560 * @did: FC_ID of the node.
3562 * This function is always called when node object need to be initialized.
3563 * It initializes all the fields of the node object. Although the reference
3564 * to phba from @ndlp can be obtained indirectly through it's reference to
3565 * @vport, a direct reference to phba is taken here by @ndlp. This is due
3566 * to the life-span of the @ndlp might go beyond the existence of @vport as
3567 * the final release of ndlp is determined by its reference count. And, the
3568 * operation on @ndlp needs the reference to phba.
3571 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3574 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
3575 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
3576 init_timer(&ndlp->nlp_delayfunc);
3577 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
3578 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
3579 ndlp->nlp_DID = did;
3580 ndlp->vport = vport;
3581 ndlp->phba = vport->phba;
3582 ndlp->nlp_sid = NLP_NO_SID;
3583 kref_init(&ndlp->kref);
3584 NLP_INT_NODE_ACT(ndlp);
3585 atomic_set(&ndlp->cmd_pending, 0);
3586 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
3589 struct lpfc_nodelist *
3590 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3593 struct lpfc_hba *phba = vport->phba;
3595 unsigned long flags;
3600 spin_lock_irqsave(&phba->ndlp_lock, flags);
3601 /* The ndlp should not be in memory free mode */
3602 if (NLP_CHK_FREE_REQ(ndlp)) {
3603 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3604 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3605 "0277 lpfc_enable_node: ndlp:x%p "
3606 "usgmap:x%x refcnt:%d\n",
3607 (void *)ndlp, ndlp->nlp_usg_map,
3608 atomic_read(&ndlp->kref.refcount));
3611 /* The ndlp should not already be in active mode */
3612 if (NLP_CHK_NODE_ACT(ndlp)) {
3613 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3614 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3615 "0278 lpfc_enable_node: ndlp:x%p "
3616 "usgmap:x%x refcnt:%d\n",
3617 (void *)ndlp, ndlp->nlp_usg_map,
3618 atomic_read(&ndlp->kref.refcount));
3622 /* Keep the original DID */
3623 did = ndlp->nlp_DID;
3625 /* re-initialize ndlp except of ndlp linked list pointer */
3626 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
3627 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
3628 lpfc_initialize_node(vport, ndlp, did);
3630 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3632 if (state != NLP_STE_UNUSED_NODE)
3633 lpfc_nlp_set_state(vport, ndlp, state);
3635 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
3636 "node enable: did:x%x",
3637 ndlp->nlp_DID, 0, 0);
3642 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3645 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
3646 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
3647 * the ndlp from the vport. The ndlp marked as UNUSED on the list
3648 * until ALL other outstanding threads have completed. We check
3649 * that the ndlp not already in the UNUSED state before we proceed.
3651 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3653 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
3659 * Start / ReStart rescue timer for Discovery / RSCN handling
3662 lpfc_set_disctmo(struct lpfc_vport *vport)
3664 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3665 struct lpfc_hba *phba = vport->phba;
3668 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
3669 /* For FAN, timeout should be greater than edtov */
3670 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
3672 /* Normal discovery timeout should be > than ELS/CT timeout
3673 * FC spec states we need 3 * ratov for CT requests
3675 tmo = ((phba->fc_ratov * 3) + 3);
3679 if (!timer_pending(&vport->fc_disctmo)) {
3680 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3681 "set disc timer: tmo:x%x state:x%x flg:x%x",
3682 tmo, vport->port_state, vport->fc_flag);
3685 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
3686 spin_lock_irq(shost->host_lock);
3687 vport->fc_flag |= FC_DISC_TMO;
3688 spin_unlock_irq(shost->host_lock);
3690 /* Start Discovery Timer state <hba_state> */
3691 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3692 "0247 Start Discovery Timer state x%x "
3693 "Data: x%x x%lx x%x x%x\n",
3694 vport->port_state, tmo,
3695 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
3696 vport->fc_adisc_cnt);
3702 * Cancel rescue timer for Discovery / RSCN handling
3705 lpfc_can_disctmo(struct lpfc_vport *vport)
3707 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3708 unsigned long iflags;
3710 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3711 "can disc timer: state:x%x rtry:x%x flg:x%x",
3712 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
3714 /* Turn off discovery timer if its running */
3715 if (vport->fc_flag & FC_DISC_TMO) {
3716 spin_lock_irqsave(shost->host_lock, iflags);
3717 vport->fc_flag &= ~FC_DISC_TMO;
3718 spin_unlock_irqrestore(shost->host_lock, iflags);
3719 del_timer_sync(&vport->fc_disctmo);
3720 spin_lock_irqsave(&vport->work_port_lock, iflags);
3721 vport->work_port_events &= ~WORKER_DISC_TMO;
3722 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
3725 /* Cancel Discovery Timer state <hba_state> */
3726 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3727 "0248 Cancel Discovery Timer state x%x "
3728 "Data: x%x x%x x%x\n",
3729 vport->port_state, vport->fc_flag,
3730 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
3735 * Check specified ring for outstanding IOCB on the SLI queue
3736 * Return true if iocb matches the specified nport
3739 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
3740 struct lpfc_sli_ring *pring,
3741 struct lpfc_iocbq *iocb,
3742 struct lpfc_nodelist *ndlp)
3744 struct lpfc_sli *psli = &phba->sli;
3745 IOCB_t *icmd = &iocb->iocb;
3746 struct lpfc_vport *vport = ndlp->vport;
3748 if (iocb->vport != vport)
3751 if (pring->ringno == LPFC_ELS_RING) {
3752 switch (icmd->ulpCommand) {
3753 case CMD_GEN_REQUEST64_CR:
3754 if (iocb->context_un.ndlp == ndlp)
3756 case CMD_ELS_REQUEST64_CR:
3757 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
3759 case CMD_XMIT_ELS_RSP64_CX:
3760 if (iocb->context1 == (uint8_t *) ndlp)
3763 } else if (pring->ringno == psli->extra_ring) {
3765 } else if (pring->ringno == psli->fcp_ring) {
3766 /* Skip match check if waiting to relogin to FCP target */
3767 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
3768 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
3771 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
3774 } else if (pring->ringno == psli->next_ring) {
3781 * Free resources / clean up outstanding I/Os
3782 * associated with nlp_rpi in the LPFC_NODELIST entry.
3785 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
3787 LIST_HEAD(completions);
3788 struct lpfc_sli *psli;
3789 struct lpfc_sli_ring *pring;
3790 struct lpfc_iocbq *iocb, *next_iocb;
3793 lpfc_fabric_abort_nport(ndlp);
3796 * Everything that matches on txcmplq will be returned
3797 * by firmware with a no rpi error.
3800 if (ndlp->nlp_flag & NLP_RPI_VALID) {
3801 /* Now process each ring */
3802 for (i = 0; i < psli->num_rings; i++) {
3803 pring = &psli->ring[i];
3805 spin_lock_irq(&phba->hbalock);
3806 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
3809 * Check to see if iocb matches the nport we are
3812 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
3814 /* It matches, so deque and call compl
3816 list_move_tail(&iocb->list,
3821 spin_unlock_irq(&phba->hbalock);
3825 /* Cancel all the IOCBs from the completions list */
3826 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3833 * Free rpi associated with LPFC_NODELIST entry.
3834 * This routine is called from lpfc_freenode(), when we are removing
3835 * a LPFC_NODELIST entry. It is also called if the driver initiates a
3836 * LOGO that completes successfully, and we are waiting to PLOGI back
3837 * to the remote NPort. In addition, it is called after we receive
3838 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
3839 * we are waiting to PLOGI back to the remote NPort.
3842 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3844 struct lpfc_hba *phba = vport->phba;
3848 if (ndlp->nlp_flag & NLP_RPI_VALID) {
3849 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3851 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
3852 mbox->vport = vport;
3853 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3854 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3855 if (rc == MBX_NOT_FINISHED)
3856 mempool_free(mbox, phba->mbox_mem_pool);
3858 lpfc_no_rpi(phba, ndlp);
3861 ndlp->nlp_flag &= ~NLP_RPI_VALID;
3862 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3869 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
3870 * @phba: pointer to lpfc hba data structure.
3872 * This routine is invoked to unregister all the currently registered RPIs
3876 lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
3878 struct lpfc_vport **vports;
3879 struct lpfc_nodelist *ndlp;
3880 struct Scsi_Host *shost;
3883 vports = lpfc_create_vport_work_array(phba);
3884 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3885 shost = lpfc_shost_from_vport(vports[i]);
3886 spin_lock_irq(shost->host_lock);
3887 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
3888 if (ndlp->nlp_flag & NLP_RPI_VALID) {
3889 /* The mempool_alloc might sleep */
3890 spin_unlock_irq(shost->host_lock);
3891 lpfc_unreg_rpi(vports[i], ndlp);
3892 spin_lock_irq(shost->host_lock);
3895 spin_unlock_irq(shost->host_lock);
3897 lpfc_destroy_vport_work_array(phba, vports);
3901 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
3903 struct lpfc_hba *phba = vport->phba;
3907 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3909 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
3910 mbox->vport = vport;
3911 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3912 mbox->context1 = NULL;
3913 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
3914 if (rc != MBX_TIMEOUT)
3915 mempool_free(mbox, phba->mbox_mem_pool);
3917 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
3918 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3919 "1836 Could not issue "
3920 "unreg_login(all_rpis) status %d\n", rc);
3925 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
3927 struct lpfc_hba *phba = vport->phba;
3931 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3933 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
3934 mbox->vport = vport;
3935 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3936 mbox->context1 = NULL;
3937 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
3938 if (rc != MBX_TIMEOUT)
3939 mempool_free(mbox, phba->mbox_mem_pool);
3941 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
3942 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3943 "1815 Could not issue "
3944 "unreg_did (default rpis) status %d\n",
3950 * Free resources associated with LPFC_NODELIST entry
3951 * so it can be freed.
3954 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3956 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3957 struct lpfc_hba *phba = vport->phba;
3958 LPFC_MBOXQ_t *mb, *nextmb;
3959 struct lpfc_dmabuf *mp;
3961 /* Cleanup node for NPort <nlp_DID> */
3962 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3963 "0900 Cleanup node for NPort x%x "
3964 "Data: x%x x%x x%x\n",
3965 ndlp->nlp_DID, ndlp->nlp_flag,
3966 ndlp->nlp_state, ndlp->nlp_rpi);
3967 if (NLP_CHK_FREE_REQ(ndlp)) {
3968 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3969 "0280 lpfc_cleanup_node: ndlp:x%p "
3970 "usgmap:x%x refcnt:%d\n",
3971 (void *)ndlp, ndlp->nlp_usg_map,
3972 atomic_read(&ndlp->kref.refcount));
3973 lpfc_dequeue_node(vport, ndlp);
3975 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3976 "0281 lpfc_cleanup_node: ndlp:x%p "
3977 "usgmap:x%x refcnt:%d\n",
3978 (void *)ndlp, ndlp->nlp_usg_map,
3979 atomic_read(&ndlp->kref.refcount));
3980 lpfc_disable_node(vport, ndlp);
3983 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
3984 if ((mb = phba->sli.mbox_active)) {
3985 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
3986 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
3987 mb->context2 = NULL;
3988 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3992 spin_lock_irq(&phba->hbalock);
3993 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
3994 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
3995 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
3996 mp = (struct lpfc_dmabuf *) (mb->context1);
3998 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
4001 list_del(&mb->list);
4002 if (phba->sli_rev == LPFC_SLI_REV4)
4003 lpfc_sli4_free_rpi(phba,
4004 mb->u.mb.un.varRegLogin.rpi);
4005 mempool_free(mb, phba->mbox_mem_pool);
4006 /* We shall not invoke the lpfc_nlp_put to decrement
4007 * the ndlp reference count as we are in the process
4008 * of lpfc_nlp_release.
4012 spin_unlock_irq(&phba->hbalock);
4014 lpfc_els_abort(phba, ndlp);
4016 spin_lock_irq(shost->host_lock);
4017 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
4018 spin_unlock_irq(shost->host_lock);
4020 ndlp->nlp_last_elscmd = 0;
4021 del_timer_sync(&ndlp->nlp_delayfunc);
4023 list_del_init(&ndlp->els_retry_evt.evt_listp);
4024 list_del_init(&ndlp->dev_loss_evt.evt_listp);
4026 lpfc_unreg_rpi(vport, ndlp);
4032 * Check to see if we can free the nlp back to the freelist.
4033 * If we are in the middle of using the nlp in the discovery state
4034 * machine, defer the free till we reach the end of the state machine.
4037 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4039 struct lpfc_hba *phba = vport->phba;
4040 struct lpfc_rport_data *rdata;
4044 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4045 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
4046 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
4047 !(ndlp->nlp_flag & NLP_RPI_VALID)) {
4048 /* For this case we need to cleanup the default rpi
4049 * allocated by the firmware.
4051 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
4053 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
4054 (uint8_t *) &vport->fc_sparam, mbox, 0);
4056 mempool_free(mbox, phba->mbox_mem_pool);
4059 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
4060 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
4061 mbox->vport = vport;
4062 mbox->context2 = NULL;
4063 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4064 if (rc == MBX_NOT_FINISHED) {
4065 mempool_free(mbox, phba->mbox_mem_pool);
4070 lpfc_cleanup_node(vport, ndlp);
4073 * We can get here with a non-NULL ndlp->rport because when we
4074 * unregister a rport we don't break the rport/node linkage. So if we
4075 * do, make sure we don't leaving any dangling pointers behind.
4078 rdata = ndlp->rport->dd_data;
4079 rdata->pnode = NULL;
4085 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4088 D_ID mydid, ndlpdid, matchdid;
4090 if (did == Bcast_DID)
4093 /* First check for Direct match */
4094 if (ndlp->nlp_DID == did)
4097 /* Next check for area/domain identically equals 0 match */
4098 mydid.un.word = vport->fc_myDID;
4099 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
4103 matchdid.un.word = did;
4104 ndlpdid.un.word = ndlp->nlp_DID;
4105 if (matchdid.un.b.id == ndlpdid.un.b.id) {
4106 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
4107 (mydid.un.b.area == matchdid.un.b.area)) {
4108 if ((ndlpdid.un.b.domain == 0) &&
4109 (ndlpdid.un.b.area == 0)) {
4110 if (ndlpdid.un.b.id)
4116 matchdid.un.word = ndlp->nlp_DID;
4117 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
4118 (mydid.un.b.area == ndlpdid.un.b.area)) {
4119 if ((matchdid.un.b.domain == 0) &&
4120 (matchdid.un.b.area == 0)) {
4121 if (matchdid.un.b.id)
4129 /* Search for a nodelist entry */
4130 static struct lpfc_nodelist *
4131 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
4133 struct lpfc_nodelist *ndlp;
4136 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4137 if (lpfc_matchdid(vport, ndlp, did)) {
4138 data1 = (((uint32_t) ndlp->nlp_state << 24) |
4139 ((uint32_t) ndlp->nlp_xri << 16) |
4140 ((uint32_t) ndlp->nlp_type << 8) |
4141 ((uint32_t) ndlp->nlp_rpi & 0xff));
4142 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4143 "0929 FIND node DID "
4144 "Data: x%p x%x x%x x%x\n",
4145 ndlp, ndlp->nlp_DID,
4146 ndlp->nlp_flag, data1);
4151 /* FIND node did <did> NOT FOUND */
4152 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4153 "0932 FIND node did x%x NOT FOUND.\n", did);
4157 struct lpfc_nodelist *
4158 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
4160 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4161 struct lpfc_nodelist *ndlp;
4163 spin_lock_irq(shost->host_lock);
4164 ndlp = __lpfc_findnode_did(vport, did);
4165 spin_unlock_irq(shost->host_lock);
4169 struct lpfc_nodelist *
4170 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
4172 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4173 struct lpfc_nodelist *ndlp;
4175 ndlp = lpfc_findnode_did(vport, did);
4177 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
4178 lpfc_rscn_payload_check(vport, did) == 0)
4180 ndlp = (struct lpfc_nodelist *)
4181 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
4184 lpfc_nlp_init(vport, ndlp, did);
4185 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4186 spin_lock_irq(shost->host_lock);
4187 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4188 spin_unlock_irq(shost->host_lock);
4190 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4191 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
4194 spin_lock_irq(shost->host_lock);
4195 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4196 spin_unlock_irq(shost->host_lock);
4200 if ((vport->fc_flag & FC_RSCN_MODE) &&
4201 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
4202 if (lpfc_rscn_payload_check(vport, did)) {
4203 /* If we've already recieved a PLOGI from this NPort
4204 * we don't need to try to discover it again.
4206 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
4209 /* Since this node is marked for discovery,
4210 * delay timeout is not needed.
4212 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4213 spin_lock_irq(shost->host_lock);
4214 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4215 spin_unlock_irq(shost->host_lock);
4219 /* If we've already recieved a PLOGI from this NPort,
4220 * or we are already in the process of discovery on it,
4221 * we don't need to try to discover it again.
4223 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
4224 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
4225 ndlp->nlp_flag & NLP_RCV_PLOGI)
4227 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4228 spin_lock_irq(shost->host_lock);
4229 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4230 spin_unlock_irq(shost->host_lock);
4235 /* Build a list of nodes to discover based on the loopmap */
4237 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
4239 struct lpfc_hba *phba = vport->phba;
4241 uint32_t alpa, index;
4243 if (!lpfc_is_link_up(phba))
4246 if (phba->fc_topology != TOPOLOGY_LOOP)
4249 /* Check for loop map present or not */
4250 if (phba->alpa_map[0]) {
4251 for (j = 1; j <= phba->alpa_map[0]; j++) {
4252 alpa = phba->alpa_map[j];
4253 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
4255 lpfc_setup_disc_node(vport, alpa);
4258 /* No alpamap, so try all alpa's */
4259 for (j = 0; j < FC_MAXLOOP; j++) {
4260 /* If cfg_scan_down is set, start from highest
4261 * ALPA (0xef) to lowest (0x1).
4263 if (vport->cfg_scan_down)
4266 index = FC_MAXLOOP - j - 1;
4267 alpa = lpfcAlpaArray[index];
4268 if ((vport->fc_myDID & 0xff) == alpa)
4270 lpfc_setup_disc_node(vport, alpa);
4277 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
4280 struct lpfc_sli *psli = &phba->sli;
4281 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
4282 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
4283 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
4287 * if it's not a physical port or if we already send
4288 * clear_la then don't send it.
4290 if ((phba->link_state >= LPFC_CLEAR_LA) ||
4291 (vport->port_type != LPFC_PHYSICAL_PORT) ||
4292 (phba->sli_rev == LPFC_SLI_REV4))
4295 /* Link up discovery */
4296 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
4297 phba->link_state = LPFC_CLEAR_LA;
4298 lpfc_clear_la(phba, mbox);
4299 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
4300 mbox->vport = vport;
4301 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4302 if (rc == MBX_NOT_FINISHED) {
4303 mempool_free(mbox, phba->mbox_mem_pool);
4304 lpfc_disc_flush_list(vport);
4305 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4306 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4307 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4308 phba->link_state = LPFC_HBA_ERROR;
4313 /* Reg_vpi to tell firmware to resume normal operations */
4315 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
4317 LPFC_MBOXQ_t *regvpimbox;
4319 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4321 lpfc_reg_vpi(vport, regvpimbox);
4322 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
4323 regvpimbox->vport = vport;
4324 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
4325 == MBX_NOT_FINISHED) {
4326 mempool_free(regvpimbox, phba->mbox_mem_pool);
4331 /* Start Link up / RSCN discovery on NPR nodes */
4333 lpfc_disc_start(struct lpfc_vport *vport)
4335 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4336 struct lpfc_hba *phba = vport->phba;
4338 uint32_t clear_la_pending;
4341 if (!lpfc_is_link_up(phba))
4344 if (phba->link_state == LPFC_CLEAR_LA)
4345 clear_la_pending = 1;
4347 clear_la_pending = 0;
4349 if (vport->port_state < LPFC_VPORT_READY)
4350 vport->port_state = LPFC_DISC_AUTH;
4352 lpfc_set_disctmo(vport);
4354 if (vport->fc_prevDID == vport->fc_myDID)
4359 vport->fc_prevDID = vport->fc_myDID;
4360 vport->num_disc_nodes = 0;
4362 /* Start Discovery state <hba_state> */
4363 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4364 "0202 Start Discovery hba state x%x "
4365 "Data: x%x x%x x%x\n",
4366 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
4367 vport->fc_adisc_cnt);
4369 /* First do ADISCs - if any */
4370 num_sent = lpfc_els_disc_adisc(vport);
4376 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
4377 * continue discovery.
4379 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
4380 !(vport->fc_flag & FC_PT2PT) &&
4381 !(vport->fc_flag & FC_RSCN_MODE) &&
4382 (phba->sli_rev < LPFC_SLI_REV4)) {
4383 lpfc_issue_reg_vpi(phba, vport);
4388 * For SLI2, we need to set port_state to READY and continue
4391 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
4392 /* If we get here, there is nothing to ADISC */
4393 if (vport->port_type == LPFC_PHYSICAL_PORT)
4394 lpfc_issue_clear_la(phba, vport);
4396 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
4397 vport->num_disc_nodes = 0;
4398 /* go thru NPR nodes and issue ELS PLOGIs */
4399 if (vport->fc_npr_cnt)
4400 lpfc_els_disc_plogi(vport);
4402 if (!vport->num_disc_nodes) {
4403 spin_lock_irq(shost->host_lock);
4404 vport->fc_flag &= ~FC_NDISC_ACTIVE;
4405 spin_unlock_irq(shost->host_lock);
4406 lpfc_can_disctmo(vport);
4409 vport->port_state = LPFC_VPORT_READY;
4411 /* Next do PLOGIs - if any */
4412 num_sent = lpfc_els_disc_plogi(vport);
4417 if (vport->fc_flag & FC_RSCN_MODE) {
4418 /* Check to see if more RSCNs came in while we
4419 * were processing this one.
4421 if ((vport->fc_rscn_id_cnt == 0) &&
4422 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
4423 spin_lock_irq(shost->host_lock);
4424 vport->fc_flag &= ~FC_RSCN_MODE;
4425 spin_unlock_irq(shost->host_lock);
4426 lpfc_can_disctmo(vport);
4428 lpfc_els_handle_rscn(vport);
4435 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
4436 * ring the match the sppecified nodelist.
4439 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
4441 LIST_HEAD(completions);
4442 struct lpfc_sli *psli;
4444 struct lpfc_iocbq *iocb, *next_iocb;
4445 struct lpfc_sli_ring *pring;
4448 pring = &psli->ring[LPFC_ELS_RING];
4450 /* Error matching iocb on txq or txcmplq
4451 * First check the txq.
4453 spin_lock_irq(&phba->hbalock);
4454 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
4455 if (iocb->context1 != ndlp) {
4459 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
4460 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
4462 list_move_tail(&iocb->list, &completions);
4467 /* Next check the txcmplq */
4468 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
4469 if (iocb->context1 != ndlp) {
4473 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
4474 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
4475 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
4478 spin_unlock_irq(&phba->hbalock);
4480 /* Cancel all the IOCBs from the completions list */
4481 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4486 lpfc_disc_flush_list(struct lpfc_vport *vport)
4488 struct lpfc_nodelist *ndlp, *next_ndlp;
4489 struct lpfc_hba *phba = vport->phba;
4491 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
4492 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
4494 if (!NLP_CHK_NODE_ACT(ndlp))
4496 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
4497 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
4498 lpfc_free_tx(phba, ndlp);
4505 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
4507 lpfc_els_flush_rscn(vport);
4508 lpfc_els_flush_cmd(vport);
4509 lpfc_disc_flush_list(vport);
4512 /*****************************************************************************/
4514 * NAME: lpfc_disc_timeout
4516 * FUNCTION: Fibre Channel driver discovery timeout routine.
4518 * EXECUTION ENVIRONMENT: interrupt only
4526 /*****************************************************************************/
4528 lpfc_disc_timeout(unsigned long ptr)
4530 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
4531 struct lpfc_hba *phba = vport->phba;
4532 uint32_t tmo_posted;
4533 unsigned long flags = 0;
4535 if (unlikely(!phba))
4538 spin_lock_irqsave(&vport->work_port_lock, flags);
4539 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
4541 vport->work_port_events |= WORKER_DISC_TMO;
4542 spin_unlock_irqrestore(&vport->work_port_lock, flags);
4545 lpfc_worker_wake_up(phba);
4550 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
4552 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4553 struct lpfc_hba *phba = vport->phba;
4554 struct lpfc_sli *psli = &phba->sli;
4555 struct lpfc_nodelist *ndlp, *next_ndlp;
4556 LPFC_MBOXQ_t *initlinkmbox;
4557 int rc, clrlaerr = 0;
4559 if (!(vport->fc_flag & FC_DISC_TMO))
4562 spin_lock_irq(shost->host_lock);
4563 vport->fc_flag &= ~FC_DISC_TMO;
4564 spin_unlock_irq(shost->host_lock);
4566 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4567 "disc timeout: state:x%x rtry:x%x flg:x%x",
4568 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
4570 switch (vport->port_state) {
4572 case LPFC_LOCAL_CFG_LINK:
4573 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
4577 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
4578 "0221 FAN timeout\n");
4579 /* Start discovery by sending FLOGI, clean up old rpis */
4580 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
4582 if (!NLP_CHK_NODE_ACT(ndlp))
4584 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
4586 if (ndlp->nlp_type & NLP_FABRIC) {
4587 /* Clean up the ndlp on Fabric connections */
4588 lpfc_drop_node(vport, ndlp);
4590 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
4591 /* Fail outstanding IO now since device
4592 * is marked for PLOGI.
4594 lpfc_unreg_rpi(vport, ndlp);
4597 if (vport->port_state != LPFC_FLOGI) {
4598 lpfc_initial_flogi(vport);
4605 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
4606 /* Initial FLOGI timeout */
4607 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4608 "0222 Initial %s timeout\n",
4609 vport->vpi ? "FDISC" : "FLOGI");
4611 /* Assume no Fabric and go on with discovery.
4612 * Check for outstanding ELS FLOGI to abort.
4615 /* FLOGI failed, so just use loop map to make discovery list */
4616 lpfc_disc_list_loopmap(vport);
4618 /* Start discovery */
4619 lpfc_disc_start(vport);
4622 case LPFC_FABRIC_CFG_LINK:
4623 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
4625 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4626 "0223 Timeout while waiting for "
4627 "NameServer login\n");
4628 /* Next look for NameServer ndlp */
4629 ndlp = lpfc_findnode_did(vport, NameServer_DID);
4630 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
4631 lpfc_els_abort(phba, ndlp);
4633 /* ReStart discovery */
4637 /* Check for wait for NameServer Rsp timeout */
4638 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4639 "0224 NameServer Query timeout "
4641 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
4643 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
4644 /* Try it one more time */
4645 vport->fc_ns_retry++;
4646 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
4647 vport->fc_ns_retry, 0);
4651 vport->fc_ns_retry = 0;
4655 * Discovery is over.
4656 * set port_state to PORT_READY if SLI2.
4657 * cmpl_reg_vpi will set port_state to READY for SLI3.
4659 if (phba->sli_rev < LPFC_SLI_REV4) {
4660 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
4661 lpfc_issue_reg_vpi(phba, vport);
4662 else { /* NPIV Not enabled */
4663 lpfc_issue_clear_la(phba, vport);
4664 vport->port_state = LPFC_VPORT_READY;
4668 /* Setup and issue mailbox INITIALIZE LINK command */
4669 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4670 if (!initlinkmbox) {
4671 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4672 "0206 Device Discovery "
4673 "completion error\n");
4674 phba->link_state = LPFC_HBA_ERROR;
4678 lpfc_linkdown(phba);
4679 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
4680 phba->cfg_link_speed);
4681 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
4682 initlinkmbox->vport = vport;
4683 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4684 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
4685 lpfc_set_loopback_flag(phba);
4686 if (rc == MBX_NOT_FINISHED)
4687 mempool_free(initlinkmbox, phba->mbox_mem_pool);
4691 case LPFC_DISC_AUTH:
4692 /* Node Authentication timeout */
4693 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4694 "0227 Node Authentication timeout\n");
4695 lpfc_disc_flush_list(vport);
4698 * set port_state to PORT_READY if SLI2.
4699 * cmpl_reg_vpi will set port_state to READY for SLI3.
4701 if (phba->sli_rev < LPFC_SLI_REV4) {
4702 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
4703 lpfc_issue_reg_vpi(phba, vport);
4704 else { /* NPIV Not enabled */
4705 lpfc_issue_clear_la(phba, vport);
4706 vport->port_state = LPFC_VPORT_READY;
4711 case LPFC_VPORT_READY:
4712 if (vport->fc_flag & FC_RSCN_MODE) {
4713 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4714 "0231 RSCN timeout Data: x%x "
4716 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
4718 /* Cleanup any outstanding ELS commands */
4719 lpfc_els_flush_cmd(vport);
4721 lpfc_els_flush_rscn(vport);
4722 lpfc_disc_flush_list(vport);
4727 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4728 "0273 Unexpected discovery timeout, "
4729 "vport State x%x\n", vport->port_state);
4733 switch (phba->link_state) {
4735 /* CLEAR LA timeout */
4736 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4737 "0228 CLEAR LA timeout\n");
4742 lpfc_issue_clear_la(phba, vport);
4744 case LPFC_LINK_UNKNOWN:
4745 case LPFC_WARM_START:
4746 case LPFC_INIT_START:
4747 case LPFC_INIT_MBX_CMDS:
4748 case LPFC_LINK_DOWN:
4749 case LPFC_HBA_ERROR:
4750 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4751 "0230 Unexpected timeout, hba link "
4752 "state x%x\n", phba->link_state);
4756 case LPFC_HBA_READY:
4761 lpfc_disc_flush_list(vport);
4762 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4763 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4764 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4765 vport->port_state = LPFC_VPORT_READY;
4772 * This routine handles processing a NameServer REG_LOGIN mailbox
4773 * command upon completion. It is setup in the LPFC_MBOXQ
4774 * as the completion routine when the command is
4775 * handed off to the SLI layer.
4778 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4780 MAILBOX_t *mb = &pmb->u.mb;
4781 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
4782 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
4783 struct lpfc_vport *vport = pmb->vport;
4785 pmb->context1 = NULL;
4787 ndlp->nlp_rpi = mb->un.varWords[0];
4788 ndlp->nlp_flag |= NLP_RPI_VALID;
4789 ndlp->nlp_type |= NLP_FABRIC;
4790 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4793 * Start issuing Fabric-Device Management Interface (FDMI) command to
4794 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
4795 * fdmi-on=2 (supporting RPA/hostnmae)
4798 if (vport->cfg_fdmi_on == 1)
4799 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
4801 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
4803 /* decrement the node reference count held for this callback
4807 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4809 mempool_free(pmb, phba->mbox_mem_pool);
4815 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
4817 uint16_t *rpi = param;
4819 return ndlp->nlp_rpi == *rpi;
4823 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
4825 return memcmp(&ndlp->nlp_portname, param,
4826 sizeof(ndlp->nlp_portname)) == 0;
4829 static struct lpfc_nodelist *
4830 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
4832 struct lpfc_nodelist *ndlp;
4834 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4835 if (filter(ndlp, param))
4842 * This routine looks up the ndlp lists for the given RPI. If rpi found it
4843 * returns the node list element pointer else return NULL.
4845 struct lpfc_nodelist *
4846 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
4848 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
4852 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
4853 * returns the node element list pointer else return NULL.
4855 struct lpfc_nodelist *
4856 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
4858 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4859 struct lpfc_nodelist *ndlp;
4861 spin_lock_irq(shost->host_lock);
4862 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
4863 spin_unlock_irq(shost->host_lock);
4868 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4871 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
4873 lpfc_initialize_node(vport, ndlp, did);
4874 INIT_LIST_HEAD(&ndlp->nlp_listp);
4876 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4877 "node init: did:x%x",
4878 ndlp->nlp_DID, 0, 0);
4883 /* This routine releases all resources associated with a specifc NPort's ndlp
4884 * and mempool_free's the nodelist.
4887 lpfc_nlp_release(struct kref *kref)
4889 struct lpfc_hba *phba;
4890 unsigned long flags;
4891 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
4894 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4895 "node release: did:x%x flg:x%x type:x%x",
4896 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4898 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4899 "0279 lpfc_nlp_release: ndlp:x%p "
4900 "usgmap:x%x refcnt:%d\n",
4901 (void *)ndlp, ndlp->nlp_usg_map,
4902 atomic_read(&ndlp->kref.refcount));
4904 /* remove ndlp from action. */
4905 lpfc_nlp_remove(ndlp->vport, ndlp);
4907 /* clear the ndlp active flag for all release cases */
4909 spin_lock_irqsave(&phba->ndlp_lock, flags);
4910 NLP_CLR_NODE_ACT(ndlp);
4911 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4913 /* free ndlp memory for final ndlp release */
4914 if (NLP_CHK_FREE_REQ(ndlp)) {
4915 kfree(ndlp->lat_data);
4916 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
4920 /* This routine bumps the reference count for a ndlp structure to ensure
4921 * that one discovery thread won't free a ndlp while another discovery thread
4924 struct lpfc_nodelist *
4925 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
4927 struct lpfc_hba *phba;
4928 unsigned long flags;
4931 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4932 "node get: did:x%x flg:x%x refcnt:x%x",
4933 ndlp->nlp_DID, ndlp->nlp_flag,
4934 atomic_read(&ndlp->kref.refcount));
4935 /* The check of ndlp usage to prevent incrementing the
4936 * ndlp reference count that is in the process of being
4940 spin_lock_irqsave(&phba->ndlp_lock, flags);
4941 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
4942 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4943 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4944 "0276 lpfc_nlp_get: ndlp:x%p "
4945 "usgmap:x%x refcnt:%d\n",
4946 (void *)ndlp, ndlp->nlp_usg_map,
4947 atomic_read(&ndlp->kref.refcount));
4950 kref_get(&ndlp->kref);
4951 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4956 /* This routine decrements the reference count for a ndlp structure. If the
4957 * count goes to 0, this indicates the the associated nodelist should be
4958 * freed. Returning 1 indicates the ndlp resource has been released; on the
4959 * other hand, returning 0 indicates the ndlp resource has not been released
4963 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
4965 struct lpfc_hba *phba;
4966 unsigned long flags;
4971 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4972 "node put: did:x%x flg:x%x refcnt:x%x",
4973 ndlp->nlp_DID, ndlp->nlp_flag,
4974 atomic_read(&ndlp->kref.refcount));
4976 spin_lock_irqsave(&phba->ndlp_lock, flags);
4977 /* Check the ndlp memory free acknowledge flag to avoid the
4978 * possible race condition that kref_put got invoked again
4979 * after previous one has done ndlp memory free.
4981 if (NLP_CHK_FREE_ACK(ndlp)) {
4982 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4983 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4984 "0274 lpfc_nlp_put: ndlp:x%p "
4985 "usgmap:x%x refcnt:%d\n",
4986 (void *)ndlp, ndlp->nlp_usg_map,
4987 atomic_read(&ndlp->kref.refcount));
4990 /* Check the ndlp inactivate log flag to avoid the possible
4991 * race condition that kref_put got invoked again after ndlp
4992 * is already in inactivating state.
4994 if (NLP_CHK_IACT_REQ(ndlp)) {
4995 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4996 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4997 "0275 lpfc_nlp_put: ndlp:x%p "
4998 "usgmap:x%x refcnt:%d\n",
4999 (void *)ndlp, ndlp->nlp_usg_map,
5000 atomic_read(&ndlp->kref.refcount));
5003 /* For last put, mark the ndlp usage flags to make sure no
5004 * other kref_get and kref_put on the same ndlp shall get
5005 * in between the process when the final kref_put has been
5006 * invoked on this ndlp.
5008 if (atomic_read(&ndlp->kref.refcount) == 1) {
5009 /* Indicate ndlp is put to inactive state. */
5010 NLP_SET_IACT_REQ(ndlp);
5011 /* Acknowledge ndlp memory free has been seen. */
5012 if (NLP_CHK_FREE_REQ(ndlp))
5013 NLP_SET_FREE_ACK(ndlp);
5015 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5016 /* Note, the kref_put returns 1 when decrementing a reference
5017 * count that was 1, it invokes the release callback function,
5018 * but it still left the reference count as 1 (not actually
5019 * performs the last decrementation). Otherwise, it actually
5020 * decrements the reference count and returns 0.
5022 return kref_put(&ndlp->kref, lpfc_nlp_release);
5025 /* This routine free's the specified nodelist if it is not in use
5026 * by any other discovery thread. This routine returns 1 if the
5027 * ndlp has been freed. A return value of 0 indicates the ndlp is
5028 * not yet been released.
5031 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
5033 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5034 "node not used: did:x%x flg:x%x refcnt:x%x",
5035 ndlp->nlp_DID, ndlp->nlp_flag,
5036 atomic_read(&ndlp->kref.refcount));
5037 if (atomic_read(&ndlp->kref.refcount) == 1)
5038 if (lpfc_nlp_put(ndlp))
5044 * lpfc_fcf_inuse - Check if FCF can be unregistered.
5045 * @phba: Pointer to hba context object.
5047 * This function iterate through all FC nodes associated
5048 * will all vports to check if there is any node with
5049 * fc_rports associated with it. If there is an fc_rport
5050 * associated with the node, then the node is either in
5051 * discovered state or its devloss_timer is pending.
5054 lpfc_fcf_inuse(struct lpfc_hba *phba)
5056 struct lpfc_vport **vports;
5058 struct lpfc_nodelist *ndlp;
5059 struct Scsi_Host *shost;
5061 vports = lpfc_create_vport_work_array(phba);
5063 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
5064 shost = lpfc_shost_from_vport(vports[i]);
5065 spin_lock_irq(shost->host_lock);
5066 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
5067 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
5068 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
5070 spin_unlock_irq(shost->host_lock);
5073 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
5074 "2624 RPI %x DID %x flg %x still "
5076 ndlp->nlp_rpi, ndlp->nlp_DID,
5078 if (ndlp->nlp_flag & NLP_RPI_VALID)
5082 spin_unlock_irq(shost->host_lock);
5085 lpfc_destroy_vport_work_array(phba, vports);
5090 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
5091 * @phba: Pointer to hba context object.
5092 * @mboxq: Pointer to mailbox object.
5094 * This function frees memory associated with the mailbox command.
5097 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5099 struct lpfc_vport *vport = mboxq->vport;
5101 if (mboxq->u.mb.mbxStatus) {
5102 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5103 "2555 UNREG_VFI mbxStatus error x%x "
5105 mboxq->u.mb.mbxStatus, vport->port_state);
5107 mempool_free(mboxq, phba->mbox_mem_pool);
5112 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
5113 * @phba: Pointer to hba context object.
5114 * @mboxq: Pointer to mailbox object.
5116 * This function frees memory associated with the mailbox command.
5119 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5121 struct lpfc_vport *vport = mboxq->vport;
5123 if (mboxq->u.mb.mbxStatus) {
5124 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5125 "2550 UNREG_FCFI mbxStatus error x%x "
5127 mboxq->u.mb.mbxStatus, vport->port_state);
5129 mempool_free(mboxq, phba->mbox_mem_pool);
5134 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
5135 * @phba: Pointer to hba context object.
5137 * This function prepare the HBA for unregistering the currently registered
5138 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
5142 lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
5145 struct lpfc_vport **vports;
5146 struct lpfc_nodelist *ndlp;
5147 struct Scsi_Host *shost;
5150 /* Unregister RPIs */
5151 if (lpfc_fcf_inuse(phba))
5152 lpfc_unreg_hba_rpis(phba);
5154 /* At this point, all discovery is aborted */
5155 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
5157 /* Unregister VPIs */
5158 vports = lpfc_create_vport_work_array(phba);
5159 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
5160 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
5161 /* Stop FLOGI/FDISC retries */
5162 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
5164 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
5165 lpfc_cleanup_pending_mbox(vports[i]);
5166 lpfc_mbx_unreg_vpi(vports[i]);
5167 shost = lpfc_shost_from_vport(vports[i]);
5168 spin_lock_irq(shost->host_lock);
5169 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
5170 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
5171 spin_unlock_irq(shost->host_lock);
5173 lpfc_destroy_vport_work_array(phba, vports);
5175 /* Cleanup any outstanding ELS commands */
5176 lpfc_els_flush_all_cmd(phba);
5178 /* Unregister VFI */
5179 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5181 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5182 "2556 UNREG_VFI mbox allocation failed"
5183 "HBA state x%x\n", phba->pport->port_state);
5187 lpfc_unreg_vfi(mbox, phba->pport);
5188 mbox->vport = phba->pport;
5189 mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl;
5191 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5192 if (rc == MBX_NOT_FINISHED) {
5193 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5194 "2557 UNREG_VFI issue mbox failed rc x%x "
5196 rc, phba->pport->port_state);
5197 mempool_free(mbox, phba->mbox_mem_pool);
5201 shost = lpfc_shost_from_vport(phba->pport);
5202 spin_lock_irq(shost->host_lock);
5203 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
5204 spin_unlock_irq(shost->host_lock);
5210 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
5211 * @phba: Pointer to hba context object.
5213 * This function issues synchronous unregister FCF mailbox command to HBA to
5214 * unregister the currently registered FCF record. The driver does not reset
5215 * the driver FCF usage state flags.
5217 * Return 0 if successfully issued, none-zero otherwise.
5220 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
5225 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5227 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5228 "2551 UNREG_FCFI mbox allocation failed"
5229 "HBA state x%x\n", phba->pport->port_state);
5232 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
5233 mbox->vport = phba->pport;
5234 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
5235 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5237 if (rc == MBX_NOT_FINISHED) {
5238 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5239 "2552 Unregister FCFI command failed rc x%x "
5241 rc, phba->pport->port_state);
5248 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
5249 * @phba: Pointer to hba context object.
5251 * This function unregisters the currently reigstered FCF. This function
5252 * also tries to find another FCF for discovery by rescan the HBA FCF table.
5255 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
5259 /* Preparation for unregistering fcf */
5260 rc = lpfc_unregister_fcf_prep(phba);
5262 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
5263 "2748 Failed to prepare for unregistering "
5264 "HBA's FCF record: rc=%d\n", rc);
5268 /* Now, unregister FCF record and reset HBA FCF state */
5269 rc = lpfc_sli4_unregister_fcf(phba);
5272 /* Reset HBA FCF states after successful unregister FCF */
5273 phba->fcf.fcf_flag = 0;
5274 phba->fcf.current_rec.flag = 0;
5277 * If driver is not unloading, check if there is any other
5278 * FCF record that can be used for discovery.
5280 if ((phba->pport->load_flag & FC_UNLOADING) ||
5281 (phba->link_state < LPFC_LINK_UP))
5284 /* This is considered as the initial FCF discovery scan */
5285 spin_lock_irq(&phba->hbalock);
5286 phba->fcf.fcf_flag |= FCF_INIT_DISC;
5287 spin_unlock_irq(&phba->hbalock);
5288 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5291 spin_lock_irq(&phba->hbalock);
5292 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
5293 spin_unlock_irq(&phba->hbalock);
5294 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5295 "2553 lpfc_unregister_unused_fcf failed "
5296 "to read FCF record HBA state x%x\n",
5297 phba->pport->port_state);
5302 * lpfc_unregister_fcf - Unregister the currently registered fcf record
5303 * @phba: Pointer to hba context object.
5305 * This function just unregisters the currently reigstered FCF. It does not
5306 * try to find another FCF for discovery.
5309 lpfc_unregister_fcf(struct lpfc_hba *phba)
5313 /* Preparation for unregistering fcf */
5314 rc = lpfc_unregister_fcf_prep(phba);
5316 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
5317 "2749 Failed to prepare for unregistering "
5318 "HBA's FCF record: rc=%d\n", rc);
5322 /* Now, unregister FCF record and reset HBA FCF state */
5323 rc = lpfc_sli4_unregister_fcf(phba);
5326 /* Set proper HBA FCF states after successful unregister FCF */
5327 spin_lock_irq(&phba->hbalock);
5328 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
5329 spin_unlock_irq(&phba->hbalock);
5333 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
5334 * @phba: Pointer to hba context object.
5336 * This function check if there are any connected remote port for the FCF and
5337 * if all the devices are disconnected, this function unregister FCFI.
5338 * This function also tries to use another FCF for discovery.
5341 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
5344 * If HBA is not running in FIP mode, if HBA does not support
5345 * FCoE, if FCF discovery is ongoing, or if FCF has not been
5346 * registered, do nothing.
5348 spin_lock_irq(&phba->hbalock);
5349 if (!(phba->hba_flag & HBA_FCOE_SUPPORT) ||
5350 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
5351 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
5352 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
5353 (phba->pport->port_state == LPFC_FLOGI)) {
5354 spin_unlock_irq(&phba->hbalock);
5357 spin_unlock_irq(&phba->hbalock);
5359 if (lpfc_fcf_inuse(phba))
5362 lpfc_unregister_fcf_rescan(phba);
5366 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
5367 * @phba: Pointer to hba context object.
5368 * @buff: Buffer containing the FCF connection table as in the config
5370 * This function create driver data structure for the FCF connection
5371 * record table read from config region 23.
5374 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
5377 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5378 struct lpfc_fcf_conn_hdr *conn_hdr;
5379 struct lpfc_fcf_conn_rec *conn_rec;
5380 uint32_t record_count;
5383 /* Free the current connect table */
5384 list_for_each_entry_safe(conn_entry, next_conn_entry,
5385 &phba->fcf_conn_rec_list, list) {
5386 list_del_init(&conn_entry->list);
5390 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
5391 record_count = conn_hdr->length * sizeof(uint32_t)/
5392 sizeof(struct lpfc_fcf_conn_rec);
5394 conn_rec = (struct lpfc_fcf_conn_rec *)
5395 (buff + sizeof(struct lpfc_fcf_conn_hdr));
5397 for (i = 0; i < record_count; i++) {
5398 if (!(conn_rec[i].flags & FCFCNCT_VALID))
5400 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
5403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5404 "2566 Failed to allocate connection"
5409 memcpy(&conn_entry->conn_rec, &conn_rec[i],
5410 sizeof(struct lpfc_fcf_conn_rec));
5411 conn_entry->conn_rec.vlan_tag =
5412 le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF;
5413 conn_entry->conn_rec.flags =
5414 le16_to_cpu(conn_entry->conn_rec.flags);
5415 list_add_tail(&conn_entry->list,
5416 &phba->fcf_conn_rec_list);
5421 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
5422 * @phba: Pointer to hba context object.
5423 * @buff: Buffer containing the FCoE parameter data structure.
5425 * This function update driver data structure with config
5426 * parameters read from config region 23.
5429 lpfc_read_fcoe_param(struct lpfc_hba *phba,
5432 struct lpfc_fip_param_hdr *fcoe_param_hdr;
5433 struct lpfc_fcoe_params *fcoe_param;
5435 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
5437 fcoe_param = (struct lpfc_fcoe_params *)
5438 (buff + sizeof(struct lpfc_fip_param_hdr));
5440 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
5441 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
5444 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
5445 phba->valid_vlan = 1;
5446 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
5450 phba->fc_map[0] = fcoe_param->fc_map[0];
5451 phba->fc_map[1] = fcoe_param->fc_map[1];
5452 phba->fc_map[2] = fcoe_param->fc_map[2];
5457 * lpfc_get_rec_conf23 - Get a record type in config region data.
5458 * @buff: Buffer containing config region 23 data.
5459 * @size: Size of the data buffer.
5460 * @rec_type: Record type to be searched.
5462 * This function searches config region data to find the begining
5463 * of the record specified by record_type. If record found, this
5464 * function return pointer to the record else return NULL.
5467 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
5469 uint32_t offset = 0, rec_length;
5471 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
5472 (size < sizeof(uint32_t)))
5475 rec_length = buff[offset + 1];
5478 * One TLV record has one word header and number of data words
5479 * specified in the rec_length field of the record header.
5481 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
5483 if (buff[offset] == rec_type)
5484 return &buff[offset];
5486 if (buff[offset] == LPFC_REGION23_LAST_REC)
5489 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
5490 rec_length = buff[offset + 1];
5496 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
5497 * @phba: Pointer to lpfc_hba data structure.
5498 * @buff: Buffer containing config region 23 data.
5499 * @size: Size of the data buffer.
5501 * This fuction parse the FCoE config parameters in config region 23 and
5502 * populate driver data structure with the parameters.
5505 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
5509 uint32_t offset = 0, rec_length;
5513 * If data size is less than 2 words signature and version cannot be
5516 if (size < 2*sizeof(uint32_t))
5519 /* Check the region signature first */
5520 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
5521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5522 "2567 Config region 23 has bad signature\n");
5528 /* Check the data structure version */
5529 if (buff[offset] != LPFC_REGION23_VERSION) {
5530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5531 "2568 Config region 23 has bad version\n");
5536 rec_length = buff[offset + 1];
5538 /* Read FCoE param record */
5539 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
5540 size - offset, FCOE_PARAM_TYPE);
5542 lpfc_read_fcoe_param(phba, rec_ptr);
5544 /* Read FCF connection table */
5545 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
5546 size - offset, FCOE_CONN_TBL_TYPE);
5548 lpfc_read_fcf_conn_tbl(phba, rec_ptr);