1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 *******************************************************************/
24 #include <linux/blkdev.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
27 #include <linux/pci.h>
28 #include <linux/kthread.h>
29 #include <linux/interrupt.h>
30 #include <linux/lockdep.h>
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_device.h>
34 #include <scsi/scsi_host.h>
35 #include <scsi/scsi_transport_fc.h>
36 #include <scsi/fc/fc_fs.h>
38 #include <linux/nvme-fc-driver.h>
43 #include "lpfc_disc.h"
45 #include "lpfc_sli4.h"
47 #include "lpfc_scsi.h"
48 #include "lpfc_nvme.h"
49 #include "lpfc_logmsg.h"
50 #include "lpfc_crtn.h"
51 #include "lpfc_vport.h"
52 #include "lpfc_debugfs.h"
54 /* AlpaArray for assignment of scsid for scan-down and bind_method */
55 static uint8_t lpfcAlpaArray[] = {
56 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
57 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
58 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
59 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
60 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
61 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
62 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
63 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
64 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
65 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
66 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
67 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
68 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
71 static void lpfc_disc_timeout_handler(struct lpfc_vport *);
72 static void lpfc_disc_flush_list(struct lpfc_vport *vport);
73 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
74 static int lpfc_fcf_inuse(struct lpfc_hba *);
77 lpfc_terminate_rport_io(struct fc_rport *rport)
79 struct lpfc_rport_data *rdata;
80 struct lpfc_nodelist * ndlp;
81 struct lpfc_hba *phba;
83 rdata = rport->dd_data;
86 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
87 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
88 printk(KERN_ERR "Cannot find remote node"
89 " to terminate I/O Data x%x\n",
96 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
97 "rport terminate: sid:x%x did:x%x flg:x%x",
98 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
100 if (ndlp->nlp_sid != NLP_NO_SID) {
101 lpfc_sli_abort_iocb(ndlp->vport,
102 &phba->sli.sli3_ring[LPFC_FCP_RING],
103 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
108 * This function will be called when dev_loss_tmo fire.
111 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
113 struct lpfc_rport_data *rdata;
114 struct lpfc_nodelist * ndlp;
115 struct lpfc_vport *vport;
116 struct Scsi_Host *shost;
117 struct lpfc_hba *phba;
118 struct lpfc_work_evt *evtp;
122 rdata = rport->dd_data;
124 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
130 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
131 "rport devlosscb: sid:x%x did:x%x flg:x%x",
132 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
134 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
135 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n",
136 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
138 /* Don't defer this if we are in the process of deleting the vport
139 * or unloading the driver. The unload will cleanup the node
140 * appropriately we just need to cleanup the ndlp rport info here.
142 if (vport->load_flag & FC_UNLOADING) {
143 put_node = rdata->pnode != NULL;
144 put_rport = ndlp->rport != NULL;
150 put_device(&rport->dev);
154 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
157 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn))
158 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
159 "6789 rport name %llx != node port name %llx",
161 wwn_to_u64(ndlp->nlp_portname.u.wwn));
163 evtp = &ndlp->dev_loss_evt;
165 if (!list_empty(&evtp->evt_listp)) {
166 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
167 "6790 rport name %llx dev_loss_evt pending",
172 shost = lpfc_shost_from_vport(vport);
173 spin_lock_irq(shost->host_lock);
174 ndlp->nlp_flag |= NLP_IN_DEV_LOSS;
175 spin_unlock_irq(shost->host_lock);
177 /* We need to hold the node by incrementing the reference
178 * count until this queued work is done
180 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
182 spin_lock_irq(&phba->hbalock);
183 if (evtp->evt_arg1) {
184 evtp->evt = LPFC_EVT_DEV_LOSS;
185 list_add_tail(&evtp->evt_listp, &phba->work_list);
186 lpfc_worker_wake_up(phba);
188 spin_unlock_irq(&phba->hbalock);
194 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
195 * @ndlp: Pointer to remote node object.
197 * This function is called from the worker thread when devloss timeout timer
198 * expires. For SLI4 host, this routine shall return 1 when at lease one
199 * remote node, including this @ndlp, is still in use of FCF; otherwise, this
200 * routine shall return 0 when there is no remote node is still in use of FCF
201 * when devloss timeout happened to this @ndlp.
204 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
206 struct lpfc_rport_data *rdata;
207 struct fc_rport *rport;
208 struct lpfc_vport *vport;
209 struct lpfc_hba *phba;
210 struct Scsi_Host *shost;
218 shost = lpfc_shost_from_vport(vport);
220 spin_lock_irq(shost->host_lock);
221 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
222 spin_unlock_irq(shost->host_lock);
227 name = (uint8_t *) &ndlp->nlp_portname;
230 if (phba->sli_rev == LPFC_SLI_REV4)
231 fcf_inuse = lpfc_fcf_inuse(phba);
233 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
234 "rport devlosstmo:did:x%x type:x%x id:x%x",
235 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
237 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
238 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n",
239 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
242 * lpfc_nlp_remove if reached with dangling rport drops the
243 * reference. To make sure that does not happen clear rport
244 * pointer in ndlp before lpfc_nlp_put.
246 rdata = rport->dd_data;
248 /* Don't defer this if we are in the process of deleting the vport
249 * or unloading the driver. The unload will cleanup the node
250 * appropriately we just need to cleanup the ndlp rport info here.
252 if (vport->load_flag & FC_UNLOADING) {
253 if (ndlp->nlp_sid != NLP_NO_SID) {
254 /* flush the target */
255 lpfc_sli_abort_iocb(vport,
256 &phba->sli.sli3_ring[LPFC_FCP_RING],
257 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
259 put_node = rdata->pnode != NULL;
264 put_device(&rport->dev);
269 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
270 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
271 "0284 Devloss timeout Ignored on "
272 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
274 *name, *(name+1), *(name+2), *(name+3),
275 *(name+4), *(name+5), *(name+6), *(name+7),
280 put_node = rdata->pnode != NULL;
285 put_device(&rport->dev);
287 if (ndlp->nlp_type & NLP_FABRIC)
290 if (ndlp->nlp_sid != NLP_NO_SID) {
292 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING],
293 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
297 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
298 "0203 Devloss timeout on "
299 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
300 "NPort x%06x Data: x%x x%x x%x\n",
301 *name, *(name+1), *(name+2), *(name+3),
302 *(name+4), *(name+5), *(name+6), *(name+7),
303 ndlp->nlp_DID, ndlp->nlp_flag,
304 ndlp->nlp_state, ndlp->nlp_rpi);
306 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
307 "0204 Devloss timeout on "
308 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
309 "NPort x%06x Data: x%x x%x x%x\n",
310 *name, *(name+1), *(name+2), *(name+3),
311 *(name+4), *(name+5), *(name+6), *(name+7),
312 ndlp->nlp_DID, ndlp->nlp_flag,
313 ndlp->nlp_state, ndlp->nlp_rpi);
316 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
317 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
318 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
319 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) &&
320 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE))
321 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
327 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
328 * @phba: Pointer to hba context object.
329 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
330 * @nlp_did: remote node identifer with devloss timeout.
332 * This function is called from the worker thread after invoking devloss
333 * timeout handler and releasing the reference count for the ndlp with
334 * which the devloss timeout was handled for SLI4 host. For the devloss
335 * timeout of the last remote node which had been in use of FCF, when this
336 * routine is invoked, it shall be guaranteed that none of the remote are
337 * in-use of FCF. When devloss timeout to the last remote using the FCF,
338 * if the FIP engine is neither in FCF table scan process nor roundrobin
339 * failover process, the in-use FCF shall be unregistered. If the FIP
340 * engine is in FCF discovery process, the devloss timeout state shall
341 * be set for either the FCF table scan process or roundrobin failover
342 * process to unregister the in-use FCF.
345 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
348 /* If devloss timeout happened to a remote node when FCF had no
349 * longer been in-use, do nothing.
354 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
355 spin_lock_irq(&phba->hbalock);
356 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
357 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
358 spin_unlock_irq(&phba->hbalock);
361 phba->hba_flag |= HBA_DEVLOSS_TMO;
362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
363 "2847 Last remote node (x%x) using "
364 "FCF devloss tmo\n", nlp_did);
366 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
367 spin_unlock_irq(&phba->hbalock);
368 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
369 "2868 Devloss tmo to FCF rediscovery "
373 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
374 spin_unlock_irq(&phba->hbalock);
375 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
376 "2869 Devloss tmo to idle FIP engine, "
377 "unreg in-use FCF and rescan.\n");
378 /* Unregister in-use FCF and rescan */
379 lpfc_unregister_fcf_rescan(phba);
382 spin_unlock_irq(&phba->hbalock);
383 if (phba->hba_flag & FCF_TS_INPROG)
384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
385 "2870 FCF table scan in progress\n");
386 if (phba->hba_flag & FCF_RR_INPROG)
387 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
388 "2871 FLOGI roundrobin FCF failover "
391 lpfc_unregister_unused_fcf(phba);
395 * lpfc_alloc_fast_evt - Allocates data structure for posting event
396 * @phba: Pointer to hba context object.
398 * This function is called from the functions which need to post
399 * events from interrupt context. This function allocates data
400 * structure required for posting event. It also keeps track of
401 * number of events pending and prevent event storm when there are
404 struct lpfc_fast_path_event *
405 lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
406 struct lpfc_fast_path_event *ret;
408 /* If there are lot of fast event do not exhaust memory due to this */
409 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
412 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
415 atomic_inc(&phba->fast_event_count);
416 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
417 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
423 * lpfc_free_fast_evt - Frees event data structure
424 * @phba: Pointer to hba context object.
425 * @evt: Event object which need to be freed.
427 * This function frees the data structure required for posting
431 lpfc_free_fast_evt(struct lpfc_hba *phba,
432 struct lpfc_fast_path_event *evt) {
434 atomic_dec(&phba->fast_event_count);
439 * lpfc_send_fastpath_evt - Posts events generated from fast path
440 * @phba: Pointer to hba context object.
441 * @evtp: Event data structure.
443 * This function is called from worker thread, when the interrupt
444 * context need to post an event. This function posts the event
445 * to fc transport netlink interface.
448 lpfc_send_fastpath_evt(struct lpfc_hba *phba,
449 struct lpfc_work_evt *evtp)
451 unsigned long evt_category, evt_sub_category;
452 struct lpfc_fast_path_event *fast_evt_data;
454 uint32_t evt_data_size;
455 struct Scsi_Host *shost;
457 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
460 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
461 evt_sub_category = (unsigned long) fast_evt_data->un.
462 fabric_evt.subcategory;
463 shost = lpfc_shost_from_vport(fast_evt_data->vport);
464 if (evt_category == FC_REG_FABRIC_EVENT) {
465 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
466 evt_data = (char *) &fast_evt_data->un.read_check_error;
467 evt_data_size = sizeof(fast_evt_data->un.
469 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
470 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
471 evt_data = (char *) &fast_evt_data->un.fabric_evt;
472 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
474 lpfc_free_fast_evt(phba, fast_evt_data);
477 } else if (evt_category == FC_REG_SCSI_EVENT) {
478 switch (evt_sub_category) {
479 case LPFC_EVENT_QFULL:
480 case LPFC_EVENT_DEVBSY:
481 evt_data = (char *) &fast_evt_data->un.scsi_evt;
482 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
484 case LPFC_EVENT_CHECK_COND:
485 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
486 evt_data_size = sizeof(fast_evt_data->un.
489 case LPFC_EVENT_VARQUEDEPTH:
490 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
491 evt_data_size = sizeof(fast_evt_data->un.
495 lpfc_free_fast_evt(phba, fast_evt_data);
499 lpfc_free_fast_evt(phba, fast_evt_data);
503 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
504 fc_host_post_vendor_event(shost,
505 fc_get_event_number(),
510 lpfc_free_fast_evt(phba, fast_evt_data);
515 lpfc_work_list_done(struct lpfc_hba *phba)
517 struct lpfc_work_evt *evtp = NULL;
518 struct lpfc_nodelist *ndlp;
523 spin_lock_irq(&phba->hbalock);
524 while (!list_empty(&phba->work_list)) {
525 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
527 spin_unlock_irq(&phba->hbalock);
530 case LPFC_EVT_ELS_RETRY:
531 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
532 lpfc_els_retry_delay_handler(ndlp);
533 free_evt = 0; /* evt is part of ndlp */
534 /* decrement the node reference count held
535 * for this queued work
539 case LPFC_EVT_DEV_LOSS:
540 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
541 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
543 /* decrement the node reference count held for
546 nlp_did = ndlp->nlp_DID;
548 if (phba->sli_rev == LPFC_SLI_REV4)
549 lpfc_sli4_post_dev_loss_tmo_handler(phba,
553 case LPFC_EVT_ONLINE:
554 if (phba->link_state < LPFC_LINK_DOWN)
555 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
557 *(int *) (evtp->evt_arg1) = 0;
558 complete((struct completion *)(evtp->evt_arg2));
560 case LPFC_EVT_OFFLINE_PREP:
561 if (phba->link_state >= LPFC_LINK_DOWN)
562 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
563 *(int *)(evtp->evt_arg1) = 0;
564 complete((struct completion *)(evtp->evt_arg2));
566 case LPFC_EVT_OFFLINE:
568 lpfc_sli_brdrestart(phba);
569 *(int *)(evtp->evt_arg1) =
570 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
571 lpfc_unblock_mgmt_io(phba);
572 complete((struct completion *)(evtp->evt_arg2));
574 case LPFC_EVT_WARM_START:
576 lpfc_reset_barrier(phba);
577 lpfc_sli_brdreset(phba);
578 lpfc_hba_down_post(phba);
579 *(int *)(evtp->evt_arg1) =
580 lpfc_sli_brdready(phba, HS_MBRDY);
581 lpfc_unblock_mgmt_io(phba);
582 complete((struct completion *)(evtp->evt_arg2));
586 *(int *)(evtp->evt_arg1)
587 = (phba->pport->stopped)
588 ? 0 : lpfc_sli_brdkill(phba);
589 lpfc_unblock_mgmt_io(phba);
590 complete((struct completion *)(evtp->evt_arg2));
592 case LPFC_EVT_FASTPATH_MGMT_EVT:
593 lpfc_send_fastpath_evt(phba, evtp);
596 case LPFC_EVT_RESET_HBA:
597 if (!(phba->pport->load_flag & FC_UNLOADING))
598 lpfc_reset_hba(phba);
603 spin_lock_irq(&phba->hbalock);
605 spin_unlock_irq(&phba->hbalock);
610 lpfc_work_done(struct lpfc_hba *phba)
612 struct lpfc_sli_ring *pring;
613 uint32_t ha_copy, status, control, work_port_events;
614 struct lpfc_vport **vports;
615 struct lpfc_vport *vport;
618 spin_lock_irq(&phba->hbalock);
619 ha_copy = phba->work_ha;
621 spin_unlock_irq(&phba->hbalock);
623 /* First, try to post the next mailbox command to SLI4 device */
624 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
625 lpfc_sli4_post_async_mbox(phba);
627 if (ha_copy & HA_ERATT)
628 /* Handle the error attention event */
629 lpfc_handle_eratt(phba);
631 if (ha_copy & HA_MBATT)
632 lpfc_sli_handle_mb_event(phba);
634 if (ha_copy & HA_LATT)
635 lpfc_handle_latt(phba);
637 /* Process SLI4 events */
638 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
639 if (phba->hba_flag & HBA_RRQ_ACTIVE)
640 lpfc_handle_rrq_active(phba);
641 if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
642 lpfc_sli4_fcp_xri_abort_event_proc(phba);
643 if (phba->hba_flag & NVME_XRI_ABORT_EVENT)
644 lpfc_sli4_nvme_xri_abort_event_proc(phba);
645 if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
646 lpfc_sli4_els_xri_abort_event_proc(phba);
647 if (phba->hba_flag & ASYNC_EVENT)
648 lpfc_sli4_async_event_proc(phba);
649 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
650 spin_lock_irq(&phba->hbalock);
651 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
652 spin_unlock_irq(&phba->hbalock);
653 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
655 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
656 lpfc_sli4_fcf_redisc_event_proc(phba);
659 vports = lpfc_create_vport_work_array(phba);
661 for (i = 0; i <= phba->max_vports; i++) {
663 * We could have no vports in array if unloading, so if
664 * this happens then just use the pport
666 if (vports[i] == NULL && i == 0)
672 spin_lock_irq(&vport->work_port_lock);
673 work_port_events = vport->work_port_events;
674 vport->work_port_events &= ~work_port_events;
675 spin_unlock_irq(&vport->work_port_lock);
676 if (work_port_events & WORKER_DISC_TMO)
677 lpfc_disc_timeout_handler(vport);
678 if (work_port_events & WORKER_ELS_TMO)
679 lpfc_els_timeout_handler(vport);
680 if (work_port_events & WORKER_HB_TMO)
681 lpfc_hb_timeout_handler(phba);
682 if (work_port_events & WORKER_MBOX_TMO)
683 lpfc_mbox_timeout_handler(phba);
684 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
685 lpfc_unblock_fabric_iocbs(phba);
686 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
687 lpfc_ramp_down_queue_handler(phba);
688 if (work_port_events & WORKER_DELAYED_DISC_TMO)
689 lpfc_delayed_disc_timeout_handler(vport);
691 lpfc_destroy_vport_work_array(phba, vports);
693 pring = lpfc_phba_elsring(phba);
694 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
695 status >>= (4*LPFC_ELS_RING);
696 if (pring && (status & HA_RXMASK ||
697 pring->flag & LPFC_DEFERRED_RING_EVENT ||
698 phba->hba_flag & HBA_SP_QUEUE_EVT)) {
699 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
700 pring->flag |= LPFC_DEFERRED_RING_EVENT;
701 /* Set the lpfc data pending flag */
702 set_bit(LPFC_DATA_READY, &phba->data_flags);
704 if (phba->link_state >= LPFC_LINK_UP ||
705 phba->link_flag & LS_MDS_LOOPBACK) {
706 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
707 lpfc_sli_handle_slow_ring_event(phba, pring,
712 if ((phba->sli_rev == LPFC_SLI_REV4) &&
713 (!list_empty(&pring->txq)))
714 lpfc_drain_txq(phba);
716 * Turn on Ring interrupts
718 if (phba->sli_rev <= LPFC_SLI_REV3) {
719 spin_lock_irq(&phba->hbalock);
720 control = readl(phba->HCregaddr);
721 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
722 lpfc_debugfs_slow_ring_trc(phba,
723 "WRK Enable ring: cntl:x%x hacopy:x%x",
724 control, ha_copy, 0);
726 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
727 writel(control, phba->HCregaddr);
728 readl(phba->HCregaddr); /* flush */
730 lpfc_debugfs_slow_ring_trc(phba,
731 "WRK Ring ok: cntl:x%x hacopy:x%x",
732 control, ha_copy, 0);
734 spin_unlock_irq(&phba->hbalock);
737 lpfc_work_list_done(phba);
741 lpfc_do_work(void *p)
743 struct lpfc_hba *phba = p;
746 set_user_nice(current, MIN_NICE);
747 current->flags |= PF_NOFREEZE;
748 phba->data_flags = 0;
750 while (!kthread_should_stop()) {
751 /* wait and check worker queue activities */
752 rc = wait_event_interruptible(phba->work_waitq,
753 (test_and_clear_bit(LPFC_DATA_READY,
755 || kthread_should_stop()));
756 /* Signal wakeup shall terminate the worker thread */
758 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
759 "0433 Wakeup on signal: rc=x%x\n", rc);
763 /* Attend pending lpfc data processing */
764 lpfc_work_done(phba);
766 phba->worker_thread = NULL;
767 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
768 "0432 Worker thread stopped.\n");
773 * This is only called to handle FC worker events. Since this a rare
774 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
775 * embedding it in the IOCB.
778 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
781 struct lpfc_work_evt *evtp;
785 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
786 * be queued to worker thread for processing
788 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
792 evtp->evt_arg1 = arg1;
793 evtp->evt_arg2 = arg2;
796 spin_lock_irqsave(&phba->hbalock, flags);
797 list_add_tail(&evtp->evt_listp, &phba->work_list);
798 spin_unlock_irqrestore(&phba->hbalock, flags);
800 lpfc_worker_wake_up(phba);
806 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
808 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
809 struct lpfc_hba *phba = vport->phba;
810 struct lpfc_nodelist *ndlp, *next_ndlp;
812 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
813 if (!NLP_CHK_NODE_ACT(ndlp))
815 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
817 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
818 ((vport->port_type == LPFC_NPIV_PORT) &&
819 (ndlp->nlp_DID == NameServer_DID)))
820 lpfc_unreg_rpi(vport, ndlp);
822 /* Leave Fabric nodes alone on link down */
823 if ((phba->sli_rev < LPFC_SLI_REV4) &&
824 (!remove && ndlp->nlp_type & NLP_FABRIC))
826 lpfc_disc_state_machine(vport, ndlp, NULL,
829 : NLP_EVT_DEVICE_RECOVERY);
831 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
832 if (phba->sli_rev == LPFC_SLI_REV4)
833 lpfc_sli4_unreg_all_rpis(vport);
834 lpfc_mbx_unreg_vpi(vport);
835 spin_lock_irq(shost->host_lock);
836 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
837 spin_unlock_irq(shost->host_lock);
842 lpfc_port_link_failure(struct lpfc_vport *vport)
844 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
846 /* Cleanup any outstanding received buffers */
847 lpfc_cleanup_rcv_buffers(vport);
849 /* Cleanup any outstanding RSCN activity */
850 lpfc_els_flush_rscn(vport);
852 /* Cleanup any outstanding ELS commands */
853 lpfc_els_flush_cmd(vport);
855 lpfc_cleanup_rpis(vport, 0);
857 /* Turn off discovery timer if its running */
858 lpfc_can_disctmo(vport);
862 lpfc_linkdown_port(struct lpfc_vport *vport)
864 struct lpfc_hba *phba = vport->phba;
865 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
867 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
868 fc_host_post_event(shost, fc_get_event_number(),
869 FCH_EVT_LINKDOWN, 0);
871 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
872 "Link Down: state:x%x rtry:x%x flg:x%x",
873 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
875 lpfc_port_link_failure(vport);
877 /* Stop delayed Nport discovery */
878 spin_lock_irq(shost->host_lock);
879 vport->fc_flag &= ~FC_DISC_DELAYED;
880 spin_unlock_irq(shost->host_lock);
881 del_timer_sync(&vport->delayed_disc_tmo);
885 lpfc_linkdown(struct lpfc_hba *phba)
887 struct lpfc_vport *vport = phba->pport;
888 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
889 struct lpfc_vport **vports;
893 if (phba->link_state == LPFC_LINK_DOWN)
896 /* Block all SCSI stack I/Os */
897 lpfc_scsi_dev_block(phba);
899 spin_lock_irq(&phba->hbalock);
900 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
901 spin_unlock_irq(&phba->hbalock);
902 if (phba->link_state > LPFC_LINK_DOWN) {
903 phba->link_state = LPFC_LINK_DOWN;
904 spin_lock_irq(shost->host_lock);
905 phba->pport->fc_flag &= ~FC_LBIT;
906 spin_unlock_irq(shost->host_lock);
908 vports = lpfc_create_vport_work_array(phba);
909 if (vports != NULL) {
910 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
911 /* Issue a LINK DOWN event to all nodes */
912 lpfc_linkdown_port(vports[i]);
914 vports[i]->fc_myDID = 0;
916 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
917 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
918 if (phba->nvmet_support)
919 lpfc_nvmet_update_targetport(phba);
921 lpfc_nvme_update_localport(vports[i]);
925 lpfc_destroy_vport_work_array(phba, vports);
926 /* Clean up any firmware default rpi's */
927 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
929 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
931 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
932 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
933 == MBX_NOT_FINISHED) {
934 mempool_free(mb, phba->mbox_mem_pool);
938 /* Setup myDID for link up if we are in pt2pt mode */
939 if (phba->pport->fc_flag & FC_PT2PT) {
940 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
942 lpfc_config_link(phba, mb);
943 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
945 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
946 == MBX_NOT_FINISHED) {
947 mempool_free(mb, phba->mbox_mem_pool);
950 spin_lock_irq(shost->host_lock);
951 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
952 spin_unlock_irq(shost->host_lock);
958 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
960 struct lpfc_nodelist *ndlp;
962 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
963 if (!NLP_CHK_NODE_ACT(ndlp))
965 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
967 if (ndlp->nlp_type & NLP_FABRIC) {
968 /* On Linkup its safe to clean up the ndlp
969 * from Fabric connections.
971 if (ndlp->nlp_DID != Fabric_DID)
972 lpfc_unreg_rpi(vport, ndlp);
973 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
974 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
975 /* Fail outstanding IO now since device is
978 lpfc_unreg_rpi(vport, ndlp);
984 lpfc_linkup_port(struct lpfc_vport *vport)
986 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
987 struct lpfc_hba *phba = vport->phba;
989 if ((vport->load_flag & FC_UNLOADING) != 0)
992 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
993 "Link Up: top:x%x speed:x%x flg:x%x",
994 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
996 /* If NPIV is not enabled, only bring the physical port up */
997 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
998 (vport != phba->pport))
1001 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
1002 fc_host_post_event(shost, fc_get_event_number(),
1005 spin_lock_irq(shost->host_lock);
1006 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
1007 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
1008 vport->fc_flag |= FC_NDISC_ACTIVE;
1009 vport->fc_ns_retry = 0;
1010 spin_unlock_irq(shost->host_lock);
1012 if (vport->fc_flag & FC_LBIT)
1013 lpfc_linkup_cleanup_nodes(vport);
1018 lpfc_linkup(struct lpfc_hba *phba)
1020 struct lpfc_vport **vports;
1023 phba->link_state = LPFC_LINK_UP;
1025 /* Unblock fabric iocbs if they are blocked */
1026 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
1027 del_timer_sync(&phba->fabric_block_timer);
1029 vports = lpfc_create_vport_work_array(phba);
1031 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1032 lpfc_linkup_port(vports[i]);
1033 lpfc_destroy_vport_work_array(phba, vports);
1039 * This routine handles processing a CLEAR_LA mailbox
1040 * command upon completion. It is setup in the LPFC_MBOXQ
1041 * as the completion routine when the command is
1042 * handed off to the SLI layer. SLI3 only.
1045 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1047 struct lpfc_vport *vport = pmb->vport;
1048 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1049 struct lpfc_sli *psli = &phba->sli;
1050 MAILBOX_t *mb = &pmb->u.mb;
1053 /* Since we don't do discovery right now, turn these off here */
1054 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1055 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1057 /* Check for error */
1058 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
1059 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1060 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1061 "0320 CLEAR_LA mbxStatus error x%x hba "
1063 mb->mbxStatus, vport->port_state);
1064 phba->link_state = LPFC_HBA_ERROR;
1068 if (vport->port_type == LPFC_PHYSICAL_PORT)
1069 phba->link_state = LPFC_HBA_READY;
1071 spin_lock_irq(&phba->hbalock);
1072 psli->sli_flag |= LPFC_PROCESS_LA;
1073 control = readl(phba->HCregaddr);
1074 control |= HC_LAINT_ENA;
1075 writel(control, phba->HCregaddr);
1076 readl(phba->HCregaddr); /* flush */
1077 spin_unlock_irq(&phba->hbalock);
1078 mempool_free(pmb, phba->mbox_mem_pool);
1082 /* Device Discovery completes */
1083 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1084 "0225 Device Discovery completes\n");
1085 mempool_free(pmb, phba->mbox_mem_pool);
1087 spin_lock_irq(shost->host_lock);
1088 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
1089 spin_unlock_irq(shost->host_lock);
1091 lpfc_can_disctmo(vport);
1093 /* turn on Link Attention interrupts */
1095 spin_lock_irq(&phba->hbalock);
1096 psli->sli_flag |= LPFC_PROCESS_LA;
1097 control = readl(phba->HCregaddr);
1098 control |= HC_LAINT_ENA;
1099 writel(control, phba->HCregaddr);
1100 readl(phba->HCregaddr); /* flush */
1101 spin_unlock_irq(&phba->hbalock);
1108 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1110 struct lpfc_vport *vport = pmb->vport;
1112 if (pmb->u.mb.mbxStatus)
1115 mempool_free(pmb, phba->mbox_mem_pool);
1117 /* don't perform discovery for SLI4 loopback diagnostic test */
1118 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1119 !(phba->hba_flag & HBA_FCOE_MODE) &&
1120 (phba->link_flag & LS_LOOPBACK_MODE))
1123 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
1124 vport->fc_flag & FC_PUBLIC_LOOP &&
1125 !(vport->fc_flag & FC_LBIT)) {
1126 /* Need to wait for FAN - use discovery timer
1127 * for timeout. port_state is identically
1128 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1130 lpfc_set_disctmo(vport);
1134 /* Start discovery by sending a FLOGI. port_state is identically
1135 * LPFC_FLOGI while waiting for FLOGI cmpl
1137 if (vport->port_state != LPFC_FLOGI)
1138 lpfc_initial_flogi(vport);
1139 else if (vport->fc_flag & FC_PT2PT)
1140 lpfc_disc_start(vport);
1144 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1145 "0306 CONFIG_LINK mbxStatus error x%x "
1147 pmb->u.mb.mbxStatus, vport->port_state);
1148 mempool_free(pmb, phba->mbox_mem_pool);
1150 lpfc_linkdown(phba);
1152 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1153 "0200 CONFIG_LINK bad hba state x%x\n",
1156 lpfc_issue_clear_la(phba, vport);
1161 * lpfc_sli4_clear_fcf_rr_bmask
1162 * @phba pointer to the struct lpfc_hba for this port.
1163 * This fucnction resets the round robin bit mask and clears the
1164 * fcf priority list. The list deletions are done while holding the
1165 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1166 * from the lpfc_fcf_pri record.
1169 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
1171 struct lpfc_fcf_pri *fcf_pri;
1172 struct lpfc_fcf_pri *next_fcf_pri;
1173 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
1174 spin_lock_irq(&phba->hbalock);
1175 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
1176 &phba->fcf.fcf_pri_list, list) {
1177 list_del_init(&fcf_pri->list);
1178 fcf_pri->fcf_rec.flag = 0;
1180 spin_unlock_irq(&phba->hbalock);
1183 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1185 struct lpfc_vport *vport = mboxq->vport;
1187 if (mboxq->u.mb.mbxStatus) {
1188 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1189 "2017 REG_FCFI mbxStatus error x%x "
1191 mboxq->u.mb.mbxStatus, vport->port_state);
1195 /* Start FCoE discovery by sending a FLOGI. */
1196 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1197 /* Set the FCFI registered flag */
1198 spin_lock_irq(&phba->hbalock);
1199 phba->fcf.fcf_flag |= FCF_REGISTERED;
1200 spin_unlock_irq(&phba->hbalock);
1202 /* If there is a pending FCoE event, restart FCF table scan. */
1203 if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
1204 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
1207 /* Mark successful completion of FCF table scan */
1208 spin_lock_irq(&phba->hbalock);
1209 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1210 phba->hba_flag &= ~FCF_TS_INPROG;
1211 if (vport->port_state != LPFC_FLOGI) {
1212 phba->hba_flag |= FCF_RR_INPROG;
1213 spin_unlock_irq(&phba->hbalock);
1214 lpfc_issue_init_vfi(vport);
1217 spin_unlock_irq(&phba->hbalock);
1221 spin_lock_irq(&phba->hbalock);
1222 phba->hba_flag &= ~FCF_RR_INPROG;
1223 spin_unlock_irq(&phba->hbalock);
1225 mempool_free(mboxq, phba->mbox_mem_pool);
1229 * lpfc_fab_name_match - Check if the fcf fabric name match.
1230 * @fab_name: pointer to fabric name.
1231 * @new_fcf_record: pointer to fcf record.
1233 * This routine compare the fcf record's fabric name with provided
1234 * fabric name. If the fabric name are identical this function
1235 * returns 1 else return 0.
1238 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1240 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1242 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1244 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1246 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1248 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1250 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
1252 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1254 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1260 * lpfc_sw_name_match - Check if the fcf switch name match.
1261 * @fab_name: pointer to fabric name.
1262 * @new_fcf_record: pointer to fcf record.
1264 * This routine compare the fcf record's switch name with provided
1265 * switch name. If the switch name are identical this function
1266 * returns 1 else return 0.
1269 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1271 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1273 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1275 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
1277 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1279 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1281 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1283 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1285 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1291 * lpfc_mac_addr_match - Check if the fcf mac address match.
1292 * @mac_addr: pointer to mac address.
1293 * @new_fcf_record: pointer to fcf record.
1295 * This routine compare the fcf record's mac address with HBA's
1296 * FCF mac address. If the mac addresses are identical this function
1297 * returns 1 else return 0.
1300 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
1302 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1304 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1306 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1308 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1310 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1312 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
1318 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1320 return (curr_vlan_id == new_vlan_id);
1324 * lpfc_update_fcf_record - Update driver fcf record
1325 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1326 * @phba: pointer to lpfc hba data structure.
1327 * @fcf_index: Index for the lpfc_fcf_record.
1328 * @new_fcf_record: pointer to hba fcf record.
1330 * This routine updates the driver FCF priority record from the new HBA FCF
1331 * record. This routine is called with the host lock held.
1334 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
1335 struct fcf_record *new_fcf_record
1338 struct lpfc_fcf_pri *fcf_pri;
1340 lockdep_assert_held(&phba->hbalock);
1342 fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1343 fcf_pri->fcf_rec.fcf_index = fcf_index;
1344 /* FCF record priority */
1345 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
1350 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1351 * @fcf: pointer to driver fcf record.
1352 * @new_fcf_record: pointer to fcf record.
1354 * This routine copies the FCF information from the FCF
1355 * record to lpfc_hba data structure.
1358 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1359 struct fcf_record *new_fcf_record)
1362 fcf_rec->fabric_name[0] =
1363 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
1364 fcf_rec->fabric_name[1] =
1365 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
1366 fcf_rec->fabric_name[2] =
1367 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
1368 fcf_rec->fabric_name[3] =
1369 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
1370 fcf_rec->fabric_name[4] =
1371 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
1372 fcf_rec->fabric_name[5] =
1373 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
1374 fcf_rec->fabric_name[6] =
1375 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
1376 fcf_rec->fabric_name[7] =
1377 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
1379 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1380 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1381 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1382 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1383 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1384 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1385 /* FCF record index */
1386 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1387 /* FCF record priority */
1388 fcf_rec->priority = new_fcf_record->fip_priority;
1390 fcf_rec->switch_name[0] =
1391 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
1392 fcf_rec->switch_name[1] =
1393 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
1394 fcf_rec->switch_name[2] =
1395 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
1396 fcf_rec->switch_name[3] =
1397 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
1398 fcf_rec->switch_name[4] =
1399 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
1400 fcf_rec->switch_name[5] =
1401 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
1402 fcf_rec->switch_name[6] =
1403 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
1404 fcf_rec->switch_name[7] =
1405 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
1409 * lpfc_update_fcf_record - Update driver fcf record
1410 * @phba: pointer to lpfc hba data structure.
1411 * @fcf_rec: pointer to driver fcf record.
1412 * @new_fcf_record: pointer to hba fcf record.
1413 * @addr_mode: address mode to be set to the driver fcf record.
1414 * @vlan_id: vlan tag to be set to the driver fcf record.
1415 * @flag: flag bits to be set to the driver fcf record.
1417 * This routine updates the driver FCF record from the new HBA FCF record
1418 * together with the address mode, vlan_id, and other informations. This
1419 * routine is called with the host lock held.
1422 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1423 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1424 uint16_t vlan_id, uint32_t flag)
1426 lockdep_assert_held(&phba->hbalock);
1428 /* Copy the fields from the HBA's FCF record */
1429 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1430 /* Update other fields of driver FCF record */
1431 fcf_rec->addr_mode = addr_mode;
1432 fcf_rec->vlan_id = vlan_id;
1433 fcf_rec->flag |= (flag | RECORD_VALID);
1434 __lpfc_update_fcf_record_pri(phba,
1435 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
1440 * lpfc_register_fcf - Register the FCF with hba.
1441 * @phba: pointer to lpfc hba data structure.
1443 * This routine issues a register fcfi mailbox command to register
1447 lpfc_register_fcf(struct lpfc_hba *phba)
1449 LPFC_MBOXQ_t *fcf_mbxq;
1452 spin_lock_irq(&phba->hbalock);
1453 /* If the FCF is not available do nothing. */
1454 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
1455 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1456 spin_unlock_irq(&phba->hbalock);
1460 /* The FCF is already registered, start discovery */
1461 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
1462 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1463 phba->hba_flag &= ~FCF_TS_INPROG;
1464 if (phba->pport->port_state != LPFC_FLOGI &&
1465 phba->pport->fc_flag & FC_FABRIC) {
1466 phba->hba_flag |= FCF_RR_INPROG;
1467 spin_unlock_irq(&phba->hbalock);
1468 lpfc_initial_flogi(phba->pport);
1471 spin_unlock_irq(&phba->hbalock);
1474 spin_unlock_irq(&phba->hbalock);
1476 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1478 spin_lock_irq(&phba->hbalock);
1479 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1480 spin_unlock_irq(&phba->hbalock);
1484 lpfc_reg_fcfi(phba, fcf_mbxq);
1485 fcf_mbxq->vport = phba->pport;
1486 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1487 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
1488 if (rc == MBX_NOT_FINISHED) {
1489 spin_lock_irq(&phba->hbalock);
1490 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1491 spin_unlock_irq(&phba->hbalock);
1492 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
1499 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1500 * @phba: pointer to lpfc hba data structure.
1501 * @new_fcf_record: pointer to fcf record.
1502 * @boot_flag: Indicates if this record used by boot bios.
1503 * @addr_mode: The address mode to be used by this FCF
1504 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1506 * This routine compare the fcf record with connect list obtained from the
1507 * config region to decide if this FCF can be used for SAN discovery. It returns
1508 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1509 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1510 * is used by boot bios and addr_mode will indicate the addressing mode to be
1511 * used for this FCF when the function returns.
1512 * If the FCF record need to be used with a particular vlan id, the vlan is
1513 * set in the vlan_id on return of the function. If not VLAN tagging need to
1514 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1517 lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1518 struct fcf_record *new_fcf_record,
1519 uint32_t *boot_flag, uint32_t *addr_mode,
1522 struct lpfc_fcf_conn_entry *conn_entry;
1523 int i, j, fcf_vlan_id = 0;
1525 /* Find the lowest VLAN id in the FCF record */
1526 for (i = 0; i < 512; i++) {
1527 if (new_fcf_record->vlan_bitmap[i]) {
1528 fcf_vlan_id = i * 8;
1530 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1538 /* FCF not valid/available or solicitation in progress */
1539 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1540 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||
1541 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))
1544 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
1546 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1548 if (phba->valid_vlan)
1549 *vlan_id = phba->vlan_id;
1551 *vlan_id = LPFC_FCOE_NULL_VID;
1556 * If there are no FCF connection table entry, driver connect to all
1559 if (list_empty(&phba->fcf_conn_rec_list)) {
1561 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1565 * When there are no FCF connect entries, use driver's default
1566 * addressing mode - FPMA.
1568 if (*addr_mode & LPFC_FCF_FPMA)
1569 *addr_mode = LPFC_FCF_FPMA;
1571 /* If FCF record report a vlan id use that vlan id */
1573 *vlan_id = fcf_vlan_id;
1575 *vlan_id = LPFC_FCOE_NULL_VID;
1579 list_for_each_entry(conn_entry,
1580 &phba->fcf_conn_rec_list, list) {
1581 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1584 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1585 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
1588 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1589 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1592 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1594 * If the vlan bit map does not have the bit set for the
1595 * vlan id to be used, then it is not a match.
1597 if (!(new_fcf_record->vlan_bitmap
1598 [conn_entry->conn_rec.vlan_tag / 8] &
1599 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1604 * If connection record does not support any addressing mode,
1605 * skip the FCF record.
1607 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1608 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1612 * Check if the connection record specifies a required
1615 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1616 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1619 * If SPMA required but FCF not support this continue.
1621 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1622 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1623 new_fcf_record) & LPFC_FCF_SPMA))
1627 * If FPMA required but FCF not support this continue.
1629 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1630 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1631 new_fcf_record) & LPFC_FCF_FPMA))
1636 * This fcf record matches filtering criteria.
1638 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1644 * If user did not specify any addressing mode, or if the
1645 * preferred addressing mode specified by user is not supported
1646 * by FCF, allow fabric to pick the addressing mode.
1648 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1651 * If the user specified a required address mode, assign that
1654 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1655 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1656 *addr_mode = (conn_entry->conn_rec.flags &
1658 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1660 * If the user specified a preferred address mode, use the
1661 * addr mode only if FCF support the addr_mode.
1663 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1664 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1665 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1666 (*addr_mode & LPFC_FCF_SPMA))
1667 *addr_mode = LPFC_FCF_SPMA;
1668 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1669 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1670 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1671 (*addr_mode & LPFC_FCF_FPMA))
1672 *addr_mode = LPFC_FCF_FPMA;
1674 /* If matching connect list has a vlan id, use it */
1675 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1676 *vlan_id = conn_entry->conn_rec.vlan_tag;
1678 * If no vlan id is specified in connect list, use the vlan id
1681 else if (fcf_vlan_id)
1682 *vlan_id = fcf_vlan_id;
1684 *vlan_id = LPFC_FCOE_NULL_VID;
1693 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1694 * @phba: pointer to lpfc hba data structure.
1695 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1697 * This function check if there is any fcoe event pending while driver
1698 * scan FCF entries. If there is any pending event, it will restart the
1699 * FCF saning and return 1 else return 0.
1702 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1705 * If the Link is up and no FCoE events while in the
1706 * FCF discovery, no need to restart FCF discovery.
1708 if ((phba->link_state >= LPFC_LINK_UP) &&
1709 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
1712 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1713 "2768 Pending link or FCF event during current "
1714 "handling of the previous event: link_state:x%x, "
1715 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1716 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
1717 phba->fcoe_eventtag);
1719 spin_lock_irq(&phba->hbalock);
1720 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1721 spin_unlock_irq(&phba->hbalock);
1723 if (phba->link_state >= LPFC_LINK_UP) {
1724 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1725 "2780 Restart FCF table scan due to "
1726 "pending FCF event:evt_tag_at_scan:x%x, "
1727 "evt_tag_current:x%x\n",
1728 phba->fcoe_eventtag_at_fcf_scan,
1729 phba->fcoe_eventtag);
1730 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
1733 * Do not continue FCF discovery and clear FCF_TS_INPROG
1736 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1737 "2833 Stop FCF discovery process due to link "
1738 "state change (x%x)\n", phba->link_state);
1739 spin_lock_irq(&phba->hbalock);
1740 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1741 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
1742 spin_unlock_irq(&phba->hbalock);
1745 /* Unregister the currently registered FCF if required */
1747 spin_lock_irq(&phba->hbalock);
1748 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1749 spin_unlock_irq(&phba->hbalock);
1750 lpfc_sli4_unregister_fcf(phba);
1756 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1757 * @phba: pointer to lpfc hba data structure.
1758 * @fcf_cnt: number of eligible fcf record seen so far.
1760 * This function makes an running random selection decision on FCF record to
1761 * use through a sequence of @fcf_cnt eligible FCF records with equal
1762 * probability. To perform integer manunipulation of random numbers with
1763 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1764 * from prandom_u32() are taken as the random random number generated.
1766 * Returns true when outcome is for the newly read FCF record should be
1767 * chosen; otherwise, return false when outcome is for keeping the previously
1768 * chosen FCF record.
1771 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
1775 /* Get 16-bit uniform random number */
1776 rand_num = 0xFFFF & prandom_u32();
1778 /* Decision with probability 1/fcf_cnt */
1779 if ((fcf_cnt * rand_num) < 0xFFFF)
1786 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
1787 * @phba: pointer to lpfc hba data structure.
1788 * @mboxq: pointer to mailbox object.
1789 * @next_fcf_index: pointer to holder of next fcf index.
1791 * This routine parses the non-embedded fcf mailbox command by performing the
1792 * necessarily error checking, non-embedded read FCF record mailbox command
1793 * SGE parsing, and endianness swapping.
1795 * Returns the pointer to the new FCF record in the non-embedded mailbox
1796 * command DMA memory if successfully, other NULL.
1798 static struct fcf_record *
1799 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
1800 uint16_t *next_fcf_index)
1803 struct lpfc_mbx_sge sge;
1804 struct lpfc_mbx_read_fcf_tbl *read_fcf;
1805 uint32_t shdr_status, shdr_add_status, if_type;
1806 union lpfc_sli4_cfg_shdr *shdr;
1807 struct fcf_record *new_fcf_record;
1809 /* Get the first SGE entry from the non-embedded DMA memory. This
1810 * routine only uses a single SGE.
1812 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1813 if (unlikely(!mboxq->sge_array)) {
1814 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1815 "2524 Failed to get the non-embedded SGE "
1816 "virtual address\n");
1819 virt_addr = mboxq->sge_array->addr[0];
1821 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
1822 lpfc_sli_pcimem_bcopy(shdr, shdr,
1823 sizeof(union lpfc_sli4_cfg_shdr));
1824 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
1825 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1826 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
1827 if (shdr_status || shdr_add_status) {
1828 if (shdr_status == STATUS_FCF_TABLE_EMPTY ||
1829 if_type == LPFC_SLI_INTF_IF_TYPE_2)
1830 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1831 "2726 READ_FCF_RECORD Indicates empty "
1834 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1835 "2521 READ_FCF_RECORD mailbox failed "
1836 "with status x%x add_status x%x, "
1837 "mbx\n", shdr_status, shdr_add_status);
1841 /* Interpreting the returned information of the FCF record */
1842 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1843 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1844 sizeof(struct lpfc_mbx_read_fcf_tbl));
1845 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
1846 new_fcf_record = (struct fcf_record *)(virt_addr +
1847 sizeof(struct lpfc_mbx_read_fcf_tbl));
1848 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
1849 offsetof(struct fcf_record, vlan_bitmap));
1850 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
1851 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
1853 return new_fcf_record;
1857 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1858 * @phba: pointer to lpfc hba data structure.
1859 * @fcf_record: pointer to the fcf record.
1860 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1861 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1863 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1867 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
1868 struct fcf_record *fcf_record,
1870 uint16_t next_fcf_index)
1872 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1873 "2764 READ_FCF_RECORD:\n"
1874 "\tFCF_Index : x%x\n"
1875 "\tFCF_Avail : x%x\n"
1876 "\tFCF_Valid : x%x\n"
1878 "\tFIP_Priority : x%x\n"
1879 "\tMAC_Provider : x%x\n"
1880 "\tLowest VLANID : x%x\n"
1881 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1882 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1883 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1884 "\tNext_FCF_Index: x%x\n",
1885 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
1886 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
1887 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
1888 bf_get(lpfc_fcf_record_fcf_sol, fcf_record),
1889 fcf_record->fip_priority,
1890 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
1892 bf_get(lpfc_fcf_record_mac_0, fcf_record),
1893 bf_get(lpfc_fcf_record_mac_1, fcf_record),
1894 bf_get(lpfc_fcf_record_mac_2, fcf_record),
1895 bf_get(lpfc_fcf_record_mac_3, fcf_record),
1896 bf_get(lpfc_fcf_record_mac_4, fcf_record),
1897 bf_get(lpfc_fcf_record_mac_5, fcf_record),
1898 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
1899 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
1900 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
1901 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
1902 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
1903 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
1904 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
1905 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
1906 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
1907 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
1908 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
1909 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
1910 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
1911 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
1912 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
1913 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
1918 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1919 * @phba: pointer to lpfc hba data structure.
1920 * @fcf_rec: pointer to an existing FCF record.
1921 * @new_fcf_record: pointer to a new FCF record.
1922 * @new_vlan_id: vlan id from the new FCF record.
1924 * This function performs matching test of a new FCF record against an existing
1925 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1926 * will not be used as part of the FCF record matching criteria.
1928 * Returns true if all the fields matching, otherwise returns false.
1931 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
1932 struct lpfc_fcf_rec *fcf_rec,
1933 struct fcf_record *new_fcf_record,
1934 uint16_t new_vlan_id)
1936 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
1937 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
1939 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
1941 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
1943 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
1945 if (fcf_rec->priority != new_fcf_record->fip_priority)
1951 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1952 * @vport: Pointer to vport object.
1953 * @fcf_index: index to next fcf.
1955 * This function processing the roundrobin fcf failover to next fcf index.
1956 * When this function is invoked, there will be a current fcf registered
1958 * Return: 0 for continue retrying flogi on currently registered fcf;
1959 * 1 for stop flogi on currently registered fcf;
1961 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
1963 struct lpfc_hba *phba = vport->phba;
1966 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
1967 spin_lock_irq(&phba->hbalock);
1968 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
1969 spin_unlock_irq(&phba->hbalock);
1970 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1971 "2872 Devloss tmo with no eligible "
1972 "FCF, unregister in-use FCF (x%x) "
1973 "and rescan FCF table\n",
1974 phba->fcf.current_rec.fcf_indx);
1975 lpfc_unregister_fcf_rescan(phba);
1976 goto stop_flogi_current_fcf;
1978 /* Mark the end to FLOGI roundrobin failover */
1979 phba->hba_flag &= ~FCF_RR_INPROG;
1980 /* Allow action to new fcf asynchronous event */
1981 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
1982 spin_unlock_irq(&phba->hbalock);
1983 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1984 "2865 No FCF available, stop roundrobin FCF "
1985 "failover and change port state:x%x/x%x\n",
1986 phba->pport->port_state, LPFC_VPORT_UNKNOWN);
1987 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
1988 goto stop_flogi_current_fcf;
1990 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
1991 "2794 Try FLOGI roundrobin FCF failover to "
1992 "(x%x)\n", fcf_index);
1993 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
1995 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
1996 "2761 FLOGI roundrobin FCF failover "
1997 "failed (rc:x%x) to read FCF (x%x)\n",
1998 rc, phba->fcf.current_rec.fcf_indx);
2000 goto stop_flogi_current_fcf;
2004 stop_flogi_current_fcf:
2005 lpfc_can_disctmo(vport);
2010 * lpfc_sli4_fcf_pri_list_del
2011 * @phba: pointer to lpfc hba data structure.
2012 * @fcf_index the index of the fcf record to delete
2013 * This routine checks the on list flag of the fcf_index to be deleted.
2014 * If it is one the list then it is removed from the list, and the flag
2015 * is cleared. This routine grab the hbalock before removing the fcf
2016 * record from the list.
2018 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
2021 struct lpfc_fcf_pri *new_fcf_pri;
2023 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2024 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2025 "3058 deleting idx x%x pri x%x flg x%x\n",
2026 fcf_index, new_fcf_pri->fcf_rec.priority,
2027 new_fcf_pri->fcf_rec.flag);
2028 spin_lock_irq(&phba->hbalock);
2029 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
2030 if (phba->fcf.current_rec.priority ==
2031 new_fcf_pri->fcf_rec.priority)
2032 phba->fcf.eligible_fcf_cnt--;
2033 list_del_init(&new_fcf_pri->list);
2034 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
2036 spin_unlock_irq(&phba->hbalock);
2040 * lpfc_sli4_set_fcf_flogi_fail
2041 * @phba: pointer to lpfc hba data structure.
2042 * @fcf_index the index of the fcf record to update
2043 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2044 * flag so the the round robin slection for the particular priority level
2045 * will try a different fcf record that does not have this bit set.
2046 * If the fcf record is re-read for any reason this flag is cleared brfore
2047 * adding it to the priority list.
2050 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
2052 struct lpfc_fcf_pri *new_fcf_pri;
2053 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2054 spin_lock_irq(&phba->hbalock);
2055 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
2056 spin_unlock_irq(&phba->hbalock);
2060 * lpfc_sli4_fcf_pri_list_add
2061 * @phba: pointer to lpfc hba data structure.
2062 * @fcf_index the index of the fcf record to add
2063 * This routine checks the priority of the fcf_index to be added.
2064 * If it is a lower priority than the current head of the fcf_pri list
2065 * then it is added to the list in the right order.
2066 * If it is the same priority as the current head of the list then it
2067 * is added to the head of the list and its bit in the rr_bmask is set.
2068 * If the fcf_index to be added is of a higher priority than the current
2069 * head of the list then the rr_bmask is cleared, its bit is set in the
2070 * rr_bmask and it is added to the head of the list.
2072 * 0=success 1=failure
2074 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba,
2076 struct fcf_record *new_fcf_record)
2078 uint16_t current_fcf_pri;
2079 uint16_t last_index;
2080 struct lpfc_fcf_pri *fcf_pri;
2081 struct lpfc_fcf_pri *next_fcf_pri;
2082 struct lpfc_fcf_pri *new_fcf_pri;
2085 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2086 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2087 "3059 adding idx x%x pri x%x flg x%x\n",
2088 fcf_index, new_fcf_record->fip_priority,
2089 new_fcf_pri->fcf_rec.flag);
2090 spin_lock_irq(&phba->hbalock);
2091 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
2092 list_del_init(&new_fcf_pri->list);
2093 new_fcf_pri->fcf_rec.fcf_index = fcf_index;
2094 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
2095 if (list_empty(&phba->fcf.fcf_pri_list)) {
2096 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2097 ret = lpfc_sli4_fcf_rr_index_set(phba,
2098 new_fcf_pri->fcf_rec.fcf_index);
2102 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
2103 LPFC_SLI4_FCF_TBL_INDX_MAX);
2104 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
2105 ret = 0; /* Empty rr list */
2108 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
2109 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
2110 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2111 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
2112 memset(phba->fcf.fcf_rr_bmask, 0,
2113 sizeof(*phba->fcf.fcf_rr_bmask));
2114 /* fcfs_at_this_priority_level = 1; */
2115 phba->fcf.eligible_fcf_cnt = 1;
2117 /* fcfs_at_this_priority_level++; */
2118 phba->fcf.eligible_fcf_cnt++;
2119 ret = lpfc_sli4_fcf_rr_index_set(phba,
2120 new_fcf_pri->fcf_rec.fcf_index);
2124 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
2125 &phba->fcf.fcf_pri_list, list) {
2126 if (new_fcf_pri->fcf_rec.priority <=
2127 fcf_pri->fcf_rec.priority) {
2128 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
2129 list_add(&new_fcf_pri->list,
2130 &phba->fcf.fcf_pri_list);
2132 list_add(&new_fcf_pri->list,
2133 &((struct lpfc_fcf_pri *)
2134 fcf_pri->list.prev)->list);
2137 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
2138 || new_fcf_pri->fcf_rec.priority <
2139 next_fcf_pri->fcf_rec.priority) {
2140 list_add(&new_fcf_pri->list, &fcf_pri->list);
2144 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
2150 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2151 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
2152 spin_unlock_irq(&phba->hbalock);
2157 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2158 * @phba: pointer to lpfc hba data structure.
2159 * @mboxq: pointer to mailbox object.
2161 * This function iterates through all the fcf records available in
2162 * HBA and chooses the optimal FCF record for discovery. After finding
2163 * the FCF for discovery it registers the FCF record and kicks start
2165 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2166 * use an FCF record which matches fabric name and mac address of the
2167 * currently used FCF record.
2168 * If the driver supports only one FCF, it will try to use the FCF record
2169 * used by BOOT_BIOS.
2172 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2174 struct fcf_record *new_fcf_record;
2175 uint32_t boot_flag, addr_mode;
2176 uint16_t fcf_index, next_fcf_index;
2177 struct lpfc_fcf_rec *fcf_rec = NULL;
2178 uint16_t vlan_id = LPFC_FCOE_NULL_VID;
2179 bool select_new_fcf;
2182 /* If there is pending FCoE event restart FCF table scan */
2183 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
2184 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2188 /* Parse the FCF record from the non-embedded mailbox command */
2189 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2191 if (!new_fcf_record) {
2192 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2193 "2765 Mailbox command READ_FCF_RECORD "
2194 "failed to retrieve a FCF record.\n");
2195 /* Let next new FCF event trigger fast failover */
2196 spin_lock_irq(&phba->hbalock);
2197 phba->hba_flag &= ~FCF_TS_INPROG;
2198 spin_unlock_irq(&phba->hbalock);
2199 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2203 /* Check the FCF record against the connection list */
2204 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2205 &addr_mode, &vlan_id);
2207 /* Log the FCF record information if turned on */
2208 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2212 * If the fcf record does not match with connect list entries
2213 * read the next entry; otherwise, this is an eligible FCF
2214 * record for roundrobin FCF failover.
2217 lpfc_sli4_fcf_pri_list_del(phba,
2218 bf_get(lpfc_fcf_record_fcf_index,
2220 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2221 "2781 FCF (x%x) failed connection "
2222 "list check: (x%x/x%x/%x)\n",
2223 bf_get(lpfc_fcf_record_fcf_index,
2225 bf_get(lpfc_fcf_record_fcf_avail,
2227 bf_get(lpfc_fcf_record_fcf_valid,
2229 bf_get(lpfc_fcf_record_fcf_sol,
2231 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
2232 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2233 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
2234 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
2235 phba->fcf.current_rec.fcf_indx) {
2236 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2237 "2862 FCF (x%x) matches property "
2238 "of in-use FCF (x%x)\n",
2239 bf_get(lpfc_fcf_record_fcf_index,
2241 phba->fcf.current_rec.fcf_indx);
2245 * In case the current in-use FCF record becomes
2246 * invalid/unavailable during FCF discovery that
2247 * was not triggered by fast FCF failover process,
2248 * treat it as fast FCF failover.
2250 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
2251 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2252 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2253 "2835 Invalid in-use FCF "
2254 "(x%x), enter FCF failover "
2256 phba->fcf.current_rec.fcf_indx);
2257 spin_lock_irq(&phba->hbalock);
2258 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2259 spin_unlock_irq(&phba->hbalock);
2260 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2261 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2262 LPFC_FCOE_FCF_GET_FIRST);
2268 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2269 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
2276 * If this is not the first FCF discovery of the HBA, use last
2277 * FCF record for the discovery. The condition that a rescan
2278 * matches the in-use FCF record: fabric name, switch name, mac
2279 * address, and vlan_id.
2281 spin_lock_irq(&phba->hbalock);
2282 if (phba->fcf.fcf_flag & FCF_IN_USE) {
2283 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2284 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2285 new_fcf_record, vlan_id)) {
2286 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
2287 phba->fcf.current_rec.fcf_indx) {
2288 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2289 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
2290 /* Stop FCF redisc wait timer */
2291 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2293 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2294 /* Fast failover, mark completed */
2295 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2296 spin_unlock_irq(&phba->hbalock);
2297 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2298 "2836 New FCF matches in-use "
2299 "FCF (x%x), port_state:x%x, "
2301 phba->fcf.current_rec.fcf_indx,
2302 phba->pport->port_state,
2303 phba->pport->fc_flag);
2306 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2307 "2863 New FCF (x%x) matches "
2308 "property of in-use FCF (x%x)\n",
2309 bf_get(lpfc_fcf_record_fcf_index,
2311 phba->fcf.current_rec.fcf_indx);
2314 * Read next FCF record from HBA searching for the matching
2315 * with in-use record only if not during the fast failover
2316 * period. In case of fast failover period, it shall try to
2317 * determine whether the FCF record just read should be the
2320 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2321 spin_unlock_irq(&phba->hbalock);
2326 * Update on failover FCF record only if it's in FCF fast-failover
2327 * period; otherwise, update on current FCF record.
2329 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2330 fcf_rec = &phba->fcf.failover_rec;
2332 fcf_rec = &phba->fcf.current_rec;
2334 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
2336 * If the driver FCF record does not have boot flag
2337 * set and new hba fcf record has boot flag set, use
2338 * the new hba fcf record.
2340 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
2341 /* Choose this FCF record */
2342 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2343 "2837 Update current FCF record "
2344 "(x%x) with new FCF record (x%x)\n",
2346 bf_get(lpfc_fcf_record_fcf_index,
2348 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2349 addr_mode, vlan_id, BOOT_ENABLE);
2350 spin_unlock_irq(&phba->hbalock);
2354 * If the driver FCF record has boot flag set and the
2355 * new hba FCF record does not have boot flag, read
2356 * the next FCF record.
2358 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
2359 spin_unlock_irq(&phba->hbalock);
2363 * If the new hba FCF record has lower priority value
2364 * than the driver FCF record, use the new record.
2366 if (new_fcf_record->fip_priority < fcf_rec->priority) {
2367 /* Choose the new FCF record with lower priority */
2368 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2369 "2838 Update current FCF record "
2370 "(x%x) with new FCF record (x%x)\n",
2372 bf_get(lpfc_fcf_record_fcf_index,
2374 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2375 addr_mode, vlan_id, 0);
2376 /* Reset running random FCF selection count */
2377 phba->fcf.eligible_fcf_cnt = 1;
2378 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
2379 /* Update running random FCF selection count */
2380 phba->fcf.eligible_fcf_cnt++;
2381 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
2382 phba->fcf.eligible_fcf_cnt);
2383 if (select_new_fcf) {
2384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2385 "2839 Update current FCF record "
2386 "(x%x) with new FCF record (x%x)\n",
2388 bf_get(lpfc_fcf_record_fcf_index,
2390 /* Choose the new FCF by random selection */
2391 __lpfc_update_fcf_record(phba, fcf_rec,
2393 addr_mode, vlan_id, 0);
2396 spin_unlock_irq(&phba->hbalock);
2400 * This is the first suitable FCF record, choose this record for
2401 * initial best-fit FCF.
2404 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2405 "2840 Update initial FCF candidate "
2407 bf_get(lpfc_fcf_record_fcf_index,
2409 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2410 addr_mode, vlan_id, (boot_flag ?
2412 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2413 /* Setup initial running random FCF selection count */
2414 phba->fcf.eligible_fcf_cnt = 1;
2416 spin_unlock_irq(&phba->hbalock);
2420 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2421 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
2422 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
2424 * Case of FCF fast failover scan
2428 * It has not found any suitable FCF record, cancel
2429 * FCF scan inprogress, and do nothing
2431 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
2432 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2433 "2782 No suitable FCF found: "
2435 phba->fcoe_eventtag_at_fcf_scan,
2436 bf_get(lpfc_fcf_record_fcf_index,
2438 spin_lock_irq(&phba->hbalock);
2439 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2440 phba->hba_flag &= ~FCF_TS_INPROG;
2441 spin_unlock_irq(&phba->hbalock);
2442 /* Unregister in-use FCF and rescan */
2443 lpfc_printf_log(phba, KERN_INFO,
2445 "2864 On devloss tmo "
2446 "unreg in-use FCF and "
2447 "rescan FCF table\n");
2448 lpfc_unregister_fcf_rescan(phba);
2452 * Let next new FCF event trigger fast failover
2454 phba->hba_flag &= ~FCF_TS_INPROG;
2455 spin_unlock_irq(&phba->hbalock);
2459 * It has found a suitable FCF record that is not
2460 * the same as in-use FCF record, unregister the
2461 * in-use FCF record, replace the in-use FCF record
2462 * with the new FCF record, mark FCF fast failover
2463 * completed, and then start register the new FCF
2467 /* Unregister the current in-use FCF record */
2468 lpfc_unregister_fcf(phba);
2470 /* Replace in-use record with the new record */
2471 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2472 "2842 Replace in-use FCF (x%x) "
2473 "with failover FCF (x%x)\n",
2474 phba->fcf.current_rec.fcf_indx,
2475 phba->fcf.failover_rec.fcf_indx);
2476 memcpy(&phba->fcf.current_rec,
2477 &phba->fcf.failover_rec,
2478 sizeof(struct lpfc_fcf_rec));
2480 * Mark the fast FCF failover rediscovery completed
2481 * and the start of the first round of the roundrobin
2484 spin_lock_irq(&phba->hbalock);
2485 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2486 spin_unlock_irq(&phba->hbalock);
2487 /* Register to the new FCF record */
2488 lpfc_register_fcf(phba);
2491 * In case of transaction period to fast FCF failover,
2492 * do nothing when search to the end of the FCF table.
2494 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
2495 (phba->fcf.fcf_flag & FCF_REDISC_PEND))
2498 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2499 phba->fcf.fcf_flag & FCF_IN_USE) {
2501 * In case the current in-use FCF record no
2502 * longer existed during FCF discovery that
2503 * was not triggered by fast FCF failover
2504 * process, treat it as fast FCF failover.
2506 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2507 "2841 In-use FCF record (x%x) "
2508 "not reported, entering fast "
2509 "FCF failover mode scanning.\n",
2510 phba->fcf.current_rec.fcf_indx);
2511 spin_lock_irq(&phba->hbalock);
2512 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2513 spin_unlock_irq(&phba->hbalock);
2514 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2515 LPFC_FCOE_FCF_GET_FIRST);
2518 /* Register to the new FCF record */
2519 lpfc_register_fcf(phba);
2522 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
2526 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2527 lpfc_register_fcf(phba);
2533 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2534 * @phba: pointer to lpfc hba data structure.
2535 * @mboxq: pointer to mailbox object.
2537 * This is the callback function for FLOGI failure roundrobin FCF failover
2538 * read FCF record mailbox command from the eligible FCF record bmask for
2539 * performing the failover. If the FCF read back is not valid/available, it
2540 * fails through to retrying FLOGI to the currently registered FCF again.
2541 * Otherwise, if the FCF read back is valid and available, it will set the
2542 * newly read FCF record to the failover FCF record, unregister currently
2543 * registered FCF record, copy the failover FCF record to the current
2544 * FCF record, and then register the current FCF record before proceeding
2545 * to trying FLOGI on the new failover FCF.
2548 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2550 struct fcf_record *new_fcf_record;
2551 uint32_t boot_flag, addr_mode;
2552 uint16_t next_fcf_index, fcf_index;
2553 uint16_t current_fcf_index;
2557 /* If link state is not up, stop the roundrobin failover process */
2558 if (phba->link_state < LPFC_LINK_UP) {
2559 spin_lock_irq(&phba->hbalock);
2560 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
2561 phba->hba_flag &= ~FCF_RR_INPROG;
2562 spin_unlock_irq(&phba->hbalock);
2566 /* Parse the FCF record from the non-embedded mailbox command */
2567 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2569 if (!new_fcf_record) {
2570 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2571 "2766 Mailbox command READ_FCF_RECORD "
2572 "failed to retrieve a FCF record. "
2573 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag,
2574 phba->fcf.fcf_flag);
2575 lpfc_unregister_fcf_rescan(phba);
2579 /* Get the needed parameters from FCF record */
2580 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2581 &addr_mode, &vlan_id);
2583 /* Log the FCF record information if turned on */
2584 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2587 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2589 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2590 "2848 Remove ineligible FCF (x%x) from "
2591 "from roundrobin bmask\n", fcf_index);
2592 /* Clear roundrobin bmask bit for ineligible FCF */
2593 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
2594 /* Perform next round of roundrobin FCF failover */
2595 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
2596 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
2602 if (fcf_index == phba->fcf.current_rec.fcf_indx) {
2603 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2604 "2760 Perform FLOGI roundrobin FCF failover: "
2605 "FCF (x%x) back to FCF (x%x)\n",
2606 phba->fcf.current_rec.fcf_indx, fcf_index);
2607 /* Wait 500 ms before retrying FLOGI to current FCF */
2609 lpfc_issue_init_vfi(phba->pport);
2613 /* Upload new FCF record to the failover FCF record */
2614 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2615 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2616 phba->fcf.failover_rec.fcf_indx, fcf_index);
2617 spin_lock_irq(&phba->hbalock);
2618 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2619 new_fcf_record, addr_mode, vlan_id,
2620 (boot_flag ? BOOT_ENABLE : 0));
2621 spin_unlock_irq(&phba->hbalock);
2623 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2625 /* Unregister the current in-use FCF record */
2626 lpfc_unregister_fcf(phba);
2628 /* Replace in-use record with the new record */
2629 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2630 sizeof(struct lpfc_fcf_rec));
2632 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2633 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2634 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
2637 lpfc_register_fcf(phba);
2639 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2643 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2644 * @phba: pointer to lpfc hba data structure.
2645 * @mboxq: pointer to mailbox object.
2647 * This is the callback function of read FCF record mailbox command for
2648 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
2649 * failover when a new FCF event happened. If the FCF read back is
2650 * valid/available and it passes the connection list check, it updates
2651 * the bmask for the eligible FCF record for roundrobin failover.
2654 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2656 struct fcf_record *new_fcf_record;
2657 uint32_t boot_flag, addr_mode;
2658 uint16_t fcf_index, next_fcf_index;
2662 /* If link state is not up, no need to proceed */
2663 if (phba->link_state < LPFC_LINK_UP)
2666 /* If FCF discovery period is over, no need to proceed */
2667 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
2670 /* Parse the FCF record from the non-embedded mailbox command */
2671 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2673 if (!new_fcf_record) {
2674 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2675 "2767 Mailbox command READ_FCF_RECORD "
2676 "failed to retrieve a FCF record.\n");
2680 /* Check the connection list for eligibility */
2681 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2682 &addr_mode, &vlan_id);
2684 /* Log the FCF record information if turned on */
2685 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2691 /* Update the eligible FCF record index bmask */
2692 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2694 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
2697 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2701 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2702 * @phba: pointer to lpfc hba data structure.
2703 * @mboxq: pointer to mailbox data structure.
2705 * This function handles completion of init vfi mailbox command.
2708 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2710 struct lpfc_vport *vport = mboxq->vport;
2713 * VFI not supported on interface type 0, just do the flogi
2714 * Also continue if the VFI is in use - just use the same one.
2716 if (mboxq->u.mb.mbxStatus &&
2717 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2718 LPFC_SLI_INTF_IF_TYPE_0) &&
2719 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2720 lpfc_printf_vlog(vport, KERN_ERR,
2722 "2891 Init VFI mailbox failed 0x%x\n",
2723 mboxq->u.mb.mbxStatus);
2724 mempool_free(mboxq, phba->mbox_mem_pool);
2725 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2729 lpfc_initial_flogi(vport);
2730 mempool_free(mboxq, phba->mbox_mem_pool);
2735 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2736 * @vport: pointer to lpfc_vport data structure.
2738 * This function issue a init_vfi mailbox command to initialize the VFI and
2739 * VPI for the physical port.
2742 lpfc_issue_init_vfi(struct lpfc_vport *vport)
2744 LPFC_MBOXQ_t *mboxq;
2746 struct lpfc_hba *phba = vport->phba;
2748 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2750 lpfc_printf_vlog(vport, KERN_ERR,
2751 LOG_MBOX, "2892 Failed to allocate "
2752 "init_vfi mailbox\n");
2755 lpfc_init_vfi(mboxq, vport);
2756 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
2757 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
2758 if (rc == MBX_NOT_FINISHED) {
2759 lpfc_printf_vlog(vport, KERN_ERR,
2760 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n");
2761 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2766 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2767 * @phba: pointer to lpfc hba data structure.
2768 * @mboxq: pointer to mailbox data structure.
2770 * This function handles completion of init vpi mailbox command.
2773 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2775 struct lpfc_vport *vport = mboxq->vport;
2776 struct lpfc_nodelist *ndlp;
2777 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2779 if (mboxq->u.mb.mbxStatus) {
2780 lpfc_printf_vlog(vport, KERN_ERR,
2782 "2609 Init VPI mailbox failed 0x%x\n",
2783 mboxq->u.mb.mbxStatus);
2784 mempool_free(mboxq, phba->mbox_mem_pool);
2785 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2788 spin_lock_irq(shost->host_lock);
2789 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
2790 spin_unlock_irq(shost->host_lock);
2792 /* If this port is physical port or FDISC is done, do reg_vpi */
2793 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
2794 ndlp = lpfc_findnode_did(vport, Fabric_DID);
2796 lpfc_printf_vlog(vport, KERN_ERR,
2798 "2731 Cannot find fabric "
2799 "controller node\n");
2801 lpfc_register_new_vport(phba, vport, ndlp);
2802 mempool_free(mboxq, phba->mbox_mem_pool);
2806 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2807 lpfc_initial_fdisc(vport);
2809 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
2810 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2811 "2606 No NPIV Fabric support\n");
2813 mempool_free(mboxq, phba->mbox_mem_pool);
2818 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2819 * @vport: pointer to lpfc_vport data structure.
2821 * This function issue a init_vpi mailbox command to initialize
2822 * VPI for the vport.
2825 lpfc_issue_init_vpi(struct lpfc_vport *vport)
2827 LPFC_MBOXQ_t *mboxq;
2830 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {
2831 vpi = lpfc_alloc_vpi(vport->phba);
2833 lpfc_printf_vlog(vport, KERN_ERR,
2835 "3303 Failed to obtain vport vpi\n");
2836 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2842 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
2844 lpfc_printf_vlog(vport, KERN_ERR,
2845 LOG_MBOX, "2607 Failed to allocate "
2846 "init_vpi mailbox\n");
2849 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
2850 mboxq->vport = vport;
2851 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
2852 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
2853 if (rc == MBX_NOT_FINISHED) {
2854 lpfc_printf_vlog(vport, KERN_ERR,
2855 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
2856 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2861 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2862 * @phba: pointer to lpfc hba data structure.
2864 * This function loops through the list of vports on the @phba and issues an
2865 * FDISC if possible.
2868 lpfc_start_fdiscs(struct lpfc_hba *phba)
2870 struct lpfc_vport **vports;
2873 vports = lpfc_create_vport_work_array(phba);
2874 if (vports != NULL) {
2875 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2876 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
2878 /* There are no vpi for this vport */
2879 if (vports[i]->vpi > phba->max_vpi) {
2880 lpfc_vport_set_state(vports[i],
2884 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2885 lpfc_vport_set_state(vports[i],
2889 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
2890 lpfc_issue_init_vpi(vports[i]);
2893 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2894 lpfc_initial_fdisc(vports[i]);
2896 lpfc_vport_set_state(vports[i],
2897 FC_VPORT_NO_FABRIC_SUPP);
2898 lpfc_printf_vlog(vports[i], KERN_ERR,
2901 "Fabric support\n");
2905 lpfc_destroy_vport_work_array(phba, vports);
2909 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2911 struct lpfc_dmabuf *dmabuf = mboxq->context1;
2912 struct lpfc_vport *vport = mboxq->vport;
2913 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2916 * VFI not supported for interface type 0, so ignore any mailbox
2917 * error (except VFI in use) and continue with the discovery.
2919 if (mboxq->u.mb.mbxStatus &&
2920 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2921 LPFC_SLI_INTF_IF_TYPE_0) &&
2922 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2923 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2924 "2018 REG_VFI mbxStatus error x%x "
2926 mboxq->u.mb.mbxStatus, vport->port_state);
2927 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2928 /* FLOGI failed, use loop map to make discovery list */
2929 lpfc_disc_list_loopmap(vport);
2930 /* Start discovery */
2931 lpfc_disc_start(vport);
2934 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2938 /* If the VFI is already registered, there is nothing else to do
2939 * Unless this was a VFI update and we are in PT2PT mode, then
2940 * we should drop through to set the port state to ready.
2942 if (vport->fc_flag & FC_VFI_REGISTERED)
2943 if (!(phba->sli_rev == LPFC_SLI_REV4 &&
2944 vport->fc_flag & FC_PT2PT))
2947 /* The VPI is implicitly registered when the VFI is registered */
2948 spin_lock_irq(shost->host_lock);
2949 vport->vpi_state |= LPFC_VPI_REGISTERED;
2950 vport->fc_flag |= FC_VFI_REGISTERED;
2951 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2952 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
2953 spin_unlock_irq(shost->host_lock);
2955 /* In case SLI4 FC loopback test, we are ready */
2956 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2957 (phba->link_flag & LS_LOOPBACK_MODE)) {
2958 phba->link_state = LPFC_HBA_READY;
2962 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2963 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
2964 "alpacnt:%d LinkState:%x topology:%x\n",
2965 vport->port_state, vport->fc_flag, vport->fc_myDID,
2966 vport->phba->alpa_map[0],
2967 phba->link_state, phba->fc_topology);
2969 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
2971 * For private loop or for NPort pt2pt,
2972 * just start discovery and we are done.
2974 if ((vport->fc_flag & FC_PT2PT) ||
2975 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
2976 !(vport->fc_flag & FC_PUBLIC_LOOP))) {
2978 /* Use loop map to make discovery list */
2979 lpfc_disc_list_loopmap(vport);
2980 /* Start discovery */
2981 if (vport->fc_flag & FC_PT2PT)
2982 vport->port_state = LPFC_VPORT_READY;
2984 lpfc_disc_start(vport);
2986 lpfc_start_fdiscs(phba);
2987 lpfc_do_scr_ns_plogi(phba, vport);
2992 mempool_free(mboxq, phba->mbox_mem_pool);
2994 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
3001 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3003 MAILBOX_t *mb = &pmb->u.mb;
3004 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
3005 struct lpfc_vport *vport = pmb->vport;
3006 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3007 struct serv_parm *sp = &vport->fc_sparam;
3010 /* Check for error */
3011 if (mb->mbxStatus) {
3012 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
3013 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3014 "0319 READ_SPARAM mbxStatus error x%x "
3016 mb->mbxStatus, vport->port_state);
3017 lpfc_linkdown(phba);
3021 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
3022 sizeof (struct serv_parm));
3024 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
3025 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
3026 ed_tov = (ed_tov + 999999) / 1000000;
3028 phba->fc_edtov = ed_tov;
3029 phba->fc_ratov = (2 * ed_tov) / 1000;
3030 if (phba->fc_ratov < FF_DEF_RATOV) {
3031 /* RA_TOV should be atleast 10sec for initial flogi */
3032 phba->fc_ratov = FF_DEF_RATOV;
3035 lpfc_update_vport_wwn(vport);
3036 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3037 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3038 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
3039 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
3042 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3044 mempool_free(pmb, phba->mbox_mem_pool);
3048 pmb->context1 = NULL;
3049 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3051 lpfc_issue_clear_la(phba, vport);
3052 mempool_free(pmb, phba->mbox_mem_pool);
3057 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
3059 struct lpfc_vport *vport = phba->pport;
3060 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
3061 struct Scsi_Host *shost;
3063 struct lpfc_dmabuf *mp;
3065 struct fcf_record *fcf_record;
3066 uint32_t fc_flags = 0;
3068 spin_lock_irq(&phba->hbalock);
3069 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
3071 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3072 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
3073 case LPFC_LINK_SPEED_1GHZ:
3074 case LPFC_LINK_SPEED_2GHZ:
3075 case LPFC_LINK_SPEED_4GHZ:
3076 case LPFC_LINK_SPEED_8GHZ:
3077 case LPFC_LINK_SPEED_10GHZ:
3078 case LPFC_LINK_SPEED_16GHZ:
3079 case LPFC_LINK_SPEED_32GHZ:
3082 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
3087 if (phba->fc_topology &&
3088 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {
3089 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3090 "3314 Toplogy changed was 0x%x is 0x%x\n",
3092 bf_get(lpfc_mbx_read_top_topology, la));
3093 phba->fc_topology_changed = 1;
3096 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
3097 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
3099 shost = lpfc_shost_from_vport(vport);
3100 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3101 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
3103 /* if npiv is enabled and this adapter supports npiv log
3104 * a message that npiv is not supported in this topology
3106 if (phba->cfg_enable_npiv && phba->max_vpi)
3107 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3108 "1309 Link Up Event npiv not supported in loop "
3110 /* Get Loop Map information */
3111 if (bf_get(lpfc_mbx_read_top_il, la))
3112 fc_flags |= FC_LBIT;
3114 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
3115 i = la->lilpBde64.tus.f.bdeSize;
3118 phba->alpa_map[0] = 0;
3120 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
3131 numalpa = phba->alpa_map[0];
3133 while (j < numalpa) {
3134 memset(un.pamap, 0, 16);
3135 for (k = 1; j < numalpa; k++) {
3137 phba->alpa_map[j + 1];
3142 /* Link Up Event ALPA map */
3143 lpfc_printf_log(phba,
3146 "1304 Link Up Event "
3147 "ALPA map Data: x%x "
3149 un.pa.wd1, un.pa.wd2,
3150 un.pa.wd3, un.pa.wd4);
3155 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
3156 if (phba->max_vpi && phba->cfg_enable_npiv &&
3157 (phba->sli_rev >= LPFC_SLI_REV3))
3158 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3160 vport->fc_myDID = phba->fc_pref_DID;
3161 fc_flags |= FC_LBIT;
3163 spin_unlock_irq(&phba->hbalock);
3166 spin_lock_irq(shost->host_lock);
3167 vport->fc_flag |= fc_flags;
3168 spin_unlock_irq(shost->host_lock);
3172 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3176 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
3178 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3181 sparam_mbox->vport = vport;
3182 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
3183 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
3184 if (rc == MBX_NOT_FINISHED) {
3185 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
3186 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3188 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3192 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3193 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3196 vport->port_state = LPFC_LOCAL_CFG_LINK;
3197 lpfc_config_link(phba, cfglink_mbox);
3198 cfglink_mbox->vport = vport;
3199 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
3200 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
3201 if (rc == MBX_NOT_FINISHED) {
3202 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
3206 vport->port_state = LPFC_VPORT_UNKNOWN;
3208 * Add the driver's default FCF record at FCF index 0 now. This
3209 * is phase 1 implementation that support FCF index 0 and driver
3212 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
3213 fcf_record = kzalloc(sizeof(struct fcf_record),
3215 if (unlikely(!fcf_record)) {
3216 lpfc_printf_log(phba, KERN_ERR,
3218 "2554 Could not allocate memory for "
3224 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
3225 LPFC_FCOE_FCF_DEF_INDEX);
3226 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
3228 lpfc_printf_log(phba, KERN_ERR,
3230 "2013 Could not manually add FCF "
3231 "record 0, status %d\n", rc);
3239 * The driver is expected to do FIP/FCF. Call the port
3240 * and get the FCF Table.
3242 spin_lock_irq(&phba->hbalock);
3243 if (phba->hba_flag & FCF_TS_INPROG) {
3244 spin_unlock_irq(&phba->hbalock);
3247 /* This is the initial FCF discovery scan */
3248 phba->fcf.fcf_flag |= FCF_INIT_DISC;
3249 spin_unlock_irq(&phba->hbalock);
3250 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3251 "2778 Start FCF table scan at linkup\n");
3252 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3253 LPFC_FCOE_FCF_GET_FIRST);
3255 spin_lock_irq(&phba->hbalock);
3256 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
3257 spin_unlock_irq(&phba->hbalock);
3260 /* Reset FCF roundrobin bmask for new discovery */
3261 lpfc_sli4_clear_fcf_rr_bmask(phba);
3266 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3267 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3268 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
3269 vport->port_state, sparam_mbox, cfglink_mbox);
3270 lpfc_issue_clear_la(phba, vport);
3275 lpfc_enable_la(struct lpfc_hba *phba)
3278 struct lpfc_sli *psli = &phba->sli;
3279 spin_lock_irq(&phba->hbalock);
3280 psli->sli_flag |= LPFC_PROCESS_LA;
3281 if (phba->sli_rev <= LPFC_SLI_REV3) {
3282 control = readl(phba->HCregaddr);
3283 control |= HC_LAINT_ENA;
3284 writel(control, phba->HCregaddr);
3285 readl(phba->HCregaddr); /* flush */
3287 spin_unlock_irq(&phba->hbalock);
3291 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
3293 lpfc_linkdown(phba);
3294 lpfc_enable_la(phba);
3295 lpfc_unregister_unused_fcf(phba);
3296 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3301 * This routine handles processing a READ_TOPOLOGY mailbox
3302 * command upon completion. It is setup in the LPFC_MBOXQ
3303 * as the completion routine when the command is
3304 * handed off to the SLI layer. SLI4 only.
3307 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3309 struct lpfc_vport *vport = pmb->vport;
3310 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3311 struct lpfc_mbx_read_top *la;
3312 struct lpfc_sli_ring *pring;
3313 MAILBOX_t *mb = &pmb->u.mb;
3314 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3317 /* Unblock ELS traffic */
3318 pring = lpfc_phba_elsring(phba);
3319 pring->flag &= ~LPFC_STOP_IOCB_EVENT;
3321 /* Check for error */
3322 if (mb->mbxStatus) {
3323 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3324 "1307 READ_LA mbox error x%x state x%x\n",
3325 mb->mbxStatus, vport->port_state);
3326 lpfc_mbx_issue_link_down(phba);
3327 phba->link_state = LPFC_HBA_ERROR;
3328 goto lpfc_mbx_cmpl_read_topology_free_mbuf;
3331 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3332 attn_type = bf_get(lpfc_mbx_read_top_att_type, la);
3334 memcpy(&phba->alpa_map[0], mp->virt, 128);
3336 spin_lock_irq(shost->host_lock);
3337 if (bf_get(lpfc_mbx_read_top_pb, la))
3338 vport->fc_flag |= FC_BYPASSED_MODE;
3340 vport->fc_flag &= ~FC_BYPASSED_MODE;
3341 spin_unlock_irq(shost->host_lock);
3343 if (phba->fc_eventTag <= la->eventTag) {
3344 phba->fc_stat.LinkMultiEvent++;
3345 if (attn_type == LPFC_ATT_LINK_UP)
3346 if (phba->fc_eventTag != 0)
3347 lpfc_linkdown(phba);
3350 phba->fc_eventTag = la->eventTag;
3351 if (phba->sli_rev < LPFC_SLI_REV4) {
3352 spin_lock_irq(&phba->hbalock);
3353 if (bf_get(lpfc_mbx_read_top_mm, la))
3354 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
3356 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
3357 spin_unlock_irq(&phba->hbalock);
3360 phba->link_events++;
3361 if ((attn_type == LPFC_ATT_LINK_UP) &&
3362 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) {
3363 phba->fc_stat.LinkUp++;
3364 if (phba->link_flag & LS_LOOPBACK_MODE) {
3365 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3366 "1306 Link Up Event in loop back mode "
3367 "x%x received Data: x%x x%x x%x x%x\n",
3368 la->eventTag, phba->fc_eventTag,
3369 bf_get(lpfc_mbx_read_top_alpa_granted,
3371 bf_get(lpfc_mbx_read_top_link_spd, la),
3374 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3375 "1303 Link Up Event x%x received "
3376 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3377 la->eventTag, phba->fc_eventTag,
3378 bf_get(lpfc_mbx_read_top_alpa_granted,
3380 bf_get(lpfc_mbx_read_top_link_spd, la),
3382 bf_get(lpfc_mbx_read_top_mm, la),
3383 bf_get(lpfc_mbx_read_top_fa, la),
3384 phba->wait_4_mlo_maint_flg);
3386 lpfc_mbx_process_link_up(phba, la);
3387 } else if (attn_type == LPFC_ATT_LINK_DOWN ||
3388 attn_type == LPFC_ATT_UNEXP_WWPN) {
3389 phba->fc_stat.LinkDown++;
3390 if (phba->link_flag & LS_LOOPBACK_MODE)
3391 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3392 "1308 Link Down Event in loop back mode "
3394 "Data: x%x x%x x%x\n",
3395 la->eventTag, phba->fc_eventTag,
3396 phba->pport->port_state, vport->fc_flag);
3397 else if (attn_type == LPFC_ATT_UNEXP_WWPN)
3398 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3399 "1313 Link Down UNEXP WWPN Event x%x received "
3400 "Data: x%x x%x x%x x%x x%x\n",
3401 la->eventTag, phba->fc_eventTag,
3402 phba->pport->port_state, vport->fc_flag,
3403 bf_get(lpfc_mbx_read_top_mm, la),
3404 bf_get(lpfc_mbx_read_top_fa, la));
3406 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3407 "1305 Link Down Event x%x received "
3408 "Data: x%x x%x x%x x%x x%x\n",
3409 la->eventTag, phba->fc_eventTag,
3410 phba->pport->port_state, vport->fc_flag,
3411 bf_get(lpfc_mbx_read_top_mm, la),
3412 bf_get(lpfc_mbx_read_top_fa, la));
3413 lpfc_mbx_issue_link_down(phba);
3415 if (phba->sli.sli_flag & LPFC_MENLO_MAINT &&
3416 attn_type == LPFC_ATT_LINK_UP) {
3417 if (phba->link_state != LPFC_LINK_DOWN) {
3418 phba->fc_stat.LinkDown++;
3419 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3420 "1312 Link Down Event x%x received "
3421 "Data: x%x x%x x%x\n",
3422 la->eventTag, phba->fc_eventTag,
3423 phba->pport->port_state, vport->fc_flag);
3424 lpfc_mbx_issue_link_down(phba);
3426 lpfc_enable_la(phba);
3428 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3429 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3430 "Data: x%x x%x x%x\n",
3431 la->eventTag, phba->fc_eventTag,
3432 phba->pport->port_state, vport->fc_flag);
3434 * The cmnd that triggered this will be waiting for this
3437 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3438 if (phba->wait_4_mlo_maint_flg) {
3439 phba->wait_4_mlo_maint_flg = 0;
3440 wake_up_interruptible(&phba->wait_4_mlo_m_q);
3444 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3445 bf_get(lpfc_mbx_read_top_fa, la)) {
3446 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
3447 lpfc_issue_clear_la(phba, vport);
3448 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3450 bf_get(lpfc_mbx_read_top_fa, la));
3453 lpfc_mbx_cmpl_read_topology_free_mbuf:
3454 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3456 mempool_free(pmb, phba->mbox_mem_pool);
3461 * This routine handles processing a REG_LOGIN mailbox
3462 * command upon completion. It is setup in the LPFC_MBOXQ
3463 * as the completion routine when the command is
3464 * handed off to the SLI layer.
3467 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3469 struct lpfc_vport *vport = pmb->vport;
3470 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3471 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3472 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3474 pmb->context1 = NULL;
3475 pmb->context2 = NULL;
3477 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3478 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n",
3479 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3480 kref_read(&ndlp->kref),
3481 ndlp->nlp_usg_map, ndlp);
3482 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
3483 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3485 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
3486 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
3487 /* We rcvd a rscn after issuing this
3488 * mbox reg login, we may have cycled
3489 * back through the state and be
3490 * back at reg login state so this
3491 * mbox needs to be ignored becase
3492 * there is another reg login in
3495 spin_lock_irq(shost->host_lock);
3496 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
3497 spin_unlock_irq(shost->host_lock);
3500 * We cannot leave the RPI registered because
3501 * if we go thru discovery again for this ndlp
3502 * a subsequent REG_RPI will fail.
3504 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3505 lpfc_unreg_rpi(vport, ndlp);
3508 /* Call state machine */
3509 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
3511 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3513 mempool_free(pmb, phba->mbox_mem_pool);
3514 /* decrement the node reference count held for this callback
3523 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3525 MAILBOX_t *mb = &pmb->u.mb;
3526 struct lpfc_vport *vport = pmb->vport;
3527 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3529 switch (mb->mbxStatus) {
3532 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3533 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3536 /* If VPI is busy, reset the HBA */
3538 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3539 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3540 vport->vpi, mb->mbxStatus);
3541 if (!(phba->pport->load_flag & FC_UNLOADING))
3542 lpfc_workq_post_event(phba, NULL, NULL,
3543 LPFC_EVT_RESET_HBA);
3545 spin_lock_irq(shost->host_lock);
3546 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
3547 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3548 spin_unlock_irq(shost->host_lock);
3549 vport->unreg_vpi_cmpl = VPORT_OK;
3550 mempool_free(pmb, phba->mbox_mem_pool);
3551 lpfc_cleanup_vports_rrqs(vport, NULL);
3553 * This shost reference might have been taken at the beginning of
3554 * lpfc_vport_delete()
3556 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
3557 scsi_host_put(shost);
3561 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
3563 struct lpfc_hba *phba = vport->phba;
3567 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3571 lpfc_unreg_vpi(phba, vport->vpi, mbox);
3572 mbox->vport = vport;
3573 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
3574 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3575 if (rc == MBX_NOT_FINISHED) {
3576 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3577 "1800 Could not issue unreg_vpi\n");
3578 mempool_free(mbox, phba->mbox_mem_pool);
3579 vport->unreg_vpi_cmpl = VPORT_ERROR;
3586 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3588 struct lpfc_vport *vport = pmb->vport;
3589 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3590 MAILBOX_t *mb = &pmb->u.mb;
3592 switch (mb->mbxStatus) {
3596 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3597 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3599 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3600 spin_lock_irq(shost->host_lock);
3601 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
3602 spin_unlock_irq(shost->host_lock);
3603 vport->fc_myDID = 0;
3605 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3606 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
3607 if (phba->nvmet_support)
3608 lpfc_nvmet_update_targetport(phba);
3610 lpfc_nvme_update_localport(vport);
3615 spin_lock_irq(shost->host_lock);
3616 vport->vpi_state |= LPFC_VPI_REGISTERED;
3617 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
3618 spin_unlock_irq(shost->host_lock);
3619 vport->num_disc_nodes = 0;
3620 /* go thru NPR list and issue ELS PLOGIs */
3621 if (vport->fc_npr_cnt)
3622 lpfc_els_disc_plogi(vport);
3624 if (!vport->num_disc_nodes) {
3625 spin_lock_irq(shost->host_lock);
3626 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3627 spin_unlock_irq(shost->host_lock);
3628 lpfc_can_disctmo(vport);
3630 vport->port_state = LPFC_VPORT_READY;
3633 mempool_free(pmb, phba->mbox_mem_pool);
3638 * lpfc_create_static_vport - Read HBA config region to create static vports.
3639 * @phba: pointer to lpfc hba data structure.
3641 * This routine issue a DUMP mailbox command for config region 22 to get
3642 * the list of static vports to be created. The function create vports
3643 * based on the information returned from the HBA.
3646 lpfc_create_static_vport(struct lpfc_hba *phba)
3648 LPFC_MBOXQ_t *pmb = NULL;
3650 struct static_vport_info *vport_info;
3651 int mbx_wait_rc = 0, i;
3652 struct fc_vport_identifiers vport_id;
3653 struct fc_vport *new_fc_vport;
3654 struct Scsi_Host *shost;
3655 struct lpfc_vport *vport;
3656 uint16_t offset = 0;
3657 uint8_t *vport_buff;
3658 struct lpfc_dmabuf *mp;
3659 uint32_t byte_count = 0;
3661 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3664 "0542 lpfc_create_static_vport failed to"
3665 " allocate mailbox memory\n");
3668 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
3671 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
3673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3674 "0543 lpfc_create_static_vport failed to"
3675 " allocate vport_info\n");
3676 mempool_free(pmb, phba->mbox_mem_pool);
3680 vport_buff = (uint8_t *) vport_info;
3682 /* free dma buffer from previous round */
3683 if (pmb->context1) {
3684 mp = (struct lpfc_dmabuf *)pmb->context1;
3685 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3688 if (lpfc_dump_static_vport(phba, pmb, offset))
3691 pmb->vport = phba->pport;
3692 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,
3695 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {
3696 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3697 "0544 lpfc_create_static_vport failed to"
3698 " issue dump mailbox command ret 0x%x "
3700 mbx_wait_rc, mb->mbxStatus);
3704 if (phba->sli_rev == LPFC_SLI_REV4) {
3705 byte_count = pmb->u.mqe.un.mb_words[5];
3706 mp = (struct lpfc_dmabuf *)pmb->context1;
3707 if (byte_count > sizeof(struct static_vport_info) -
3709 byte_count = sizeof(struct static_vport_info)
3711 memcpy(vport_buff + offset, mp->virt, byte_count);
3712 offset += byte_count;
3714 if (mb->un.varDmp.word_cnt >
3715 sizeof(struct static_vport_info) - offset)
3716 mb->un.varDmp.word_cnt =
3717 sizeof(struct static_vport_info)
3719 byte_count = mb->un.varDmp.word_cnt;
3720 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
3721 vport_buff + offset,
3724 offset += byte_count;
3727 } while (byte_count &&
3728 offset < sizeof(struct static_vport_info));
3731 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
3732 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
3733 != VPORT_INFO_REV)) {
3734 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3735 "0545 lpfc_create_static_vport bad"
3736 " information header 0x%x 0x%x\n",
3737 le32_to_cpu(vport_info->signature),
3738 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
3743 shost = lpfc_shost_from_vport(phba->pport);
3745 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
3746 memset(&vport_id, 0, sizeof(vport_id));
3747 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
3748 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
3749 if (!vport_id.port_name || !vport_id.node_name)
3752 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
3753 vport_id.vport_type = FC_PORTTYPE_NPIV;
3754 vport_id.disable = false;
3755 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
3757 if (!new_fc_vport) {
3758 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3759 "0546 lpfc_create_static_vport failed to"
3764 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
3765 vport->vport_flag |= STATIC_VPORT;
3770 if (mbx_wait_rc != MBX_TIMEOUT) {
3771 if (pmb->context1) {
3772 mp = (struct lpfc_dmabuf *)pmb->context1;
3773 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3776 mempool_free(pmb, phba->mbox_mem_pool);
3783 * This routine handles processing a Fabric REG_LOGIN mailbox
3784 * command upon completion. It is setup in the LPFC_MBOXQ
3785 * as the completion routine when the command is
3786 * handed off to the SLI layer.
3789 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3791 struct lpfc_vport *vport = pmb->vport;
3792 MAILBOX_t *mb = &pmb->u.mb;
3793 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3794 struct lpfc_nodelist *ndlp;
3795 struct Scsi_Host *shost;
3797 ndlp = (struct lpfc_nodelist *) pmb->context2;
3798 pmb->context1 = NULL;
3799 pmb->context2 = NULL;
3801 if (mb->mbxStatus) {
3802 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3803 "0258 Register Fabric login error: 0x%x\n",
3805 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3807 mempool_free(pmb, phba->mbox_mem_pool);
3809 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3810 /* FLOGI failed, use loop map to make discovery list */
3811 lpfc_disc_list_loopmap(vport);
3813 /* Start discovery */
3814 lpfc_disc_start(vport);
3815 /* Decrement the reference count to ndlp after the
3816 * reference to the ndlp are done.
3822 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3823 /* Decrement the reference count to ndlp after the reference
3824 * to the ndlp are done.
3830 if (phba->sli_rev < LPFC_SLI_REV4)
3831 ndlp->nlp_rpi = mb->un.varWords[0];
3832 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3833 ndlp->nlp_type |= NLP_FABRIC;
3834 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3836 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3837 /* when physical port receive logo donot start
3838 * vport discovery */
3839 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
3840 lpfc_start_fdiscs(phba);
3842 shost = lpfc_shost_from_vport(vport);
3843 spin_lock_irq(shost->host_lock);
3844 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
3845 spin_unlock_irq(shost->host_lock);
3847 lpfc_do_scr_ns_plogi(phba, vport);
3850 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3852 mempool_free(pmb, phba->mbox_mem_pool);
3854 /* Drop the reference count from the mbox at the end after
3855 * all the current reference to the ndlp have been done.
3862 * This routine will issue a GID_FT for each FC4 Type supported
3863 * by the driver. ALL GID_FTs must complete before discovery is started.
3866 lpfc_issue_gidft(struct lpfc_vport *vport)
3868 struct lpfc_hba *phba = vport->phba;
3870 /* Good status, issue CT Request to NameServer */
3871 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3872 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) {
3873 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) {
3874 /* Cannot issue NameServer FCP Query, so finish up
3877 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
3878 "0604 %s FC TYPE %x %s\n",
3879 "Failed to issue GID_FT to ",
3881 "Finishing discovery.");
3887 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3888 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
3889 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) {
3890 /* Cannot issue NameServer NVME Query, so finish up
3893 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
3894 "0605 %s FC_TYPE %x %s %d\n",
3895 "Failed to issue GID_FT to ",
3897 "Finishing discovery: gidftinp ",
3899 if (vport->gidft_inp == 0)
3904 return vport->gidft_inp;
3908 * This routine handles processing a NameServer REG_LOGIN mailbox
3909 * command upon completion. It is setup in the LPFC_MBOXQ
3910 * as the completion routine when the command is
3911 * handed off to the SLI layer.
3914 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3916 MAILBOX_t *mb = &pmb->u.mb;
3917 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3918 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3919 struct lpfc_vport *vport = pmb->vport;
3921 pmb->context1 = NULL;
3922 pmb->context2 = NULL;
3923 vport->gidft_inp = 0;
3925 if (mb->mbxStatus) {
3926 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3927 "0260 Register NameServer error: 0x%x\n",
3931 /* decrement the node reference count held for this
3932 * callback function.
3935 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3937 mempool_free(pmb, phba->mbox_mem_pool);
3939 /* If no other thread is using the ndlp, free it */
3940 lpfc_nlp_not_used(ndlp);
3942 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3944 * RegLogin failed, use loop map to make discovery
3947 lpfc_disc_list_loopmap(vport);
3949 /* Start discovery */
3950 lpfc_disc_start(vport);
3953 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3957 if (phba->sli_rev < LPFC_SLI_REV4)
3958 ndlp->nlp_rpi = mb->un.varWords[0];
3959 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3960 ndlp->nlp_type |= NLP_FABRIC;
3961 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3962 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3963 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n",
3964 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3965 kref_read(&ndlp->kref),
3966 ndlp->nlp_usg_map, ndlp);
3968 if (vport->port_state < LPFC_VPORT_READY) {
3969 /* Link up discovery requires Fabric registration. */
3970 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
3971 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
3972 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
3973 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
3975 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3976 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP))
3977 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP);
3979 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3980 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME))
3981 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0,
3984 /* Issue SCR just before NameServer GID_FT Query */
3985 lpfc_issue_els_scr(vport, SCR_DID, 0);
3988 vport->fc_ns_retry = 0;
3989 if (lpfc_issue_gidft(vport) == 0)
3993 * At this point in time we may need to wait for multiple
3994 * SLI_CTNS_GID_FT CT commands to complete before we start discovery.
3996 * decrement the node reference count held for this
3997 * callback function.
4000 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4002 mempool_free(pmb, phba->mbox_mem_pool);
4008 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4010 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4011 struct fc_rport *rport;
4012 struct lpfc_rport_data *rdata;
4013 struct fc_rport_identifiers rport_ids;
4014 struct lpfc_hba *phba = vport->phba;
4016 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
4019 /* Remote port has reappeared. Re-register w/ FC transport */
4020 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
4021 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
4022 rport_ids.port_id = ndlp->nlp_DID;
4023 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
4026 * We leave our node pointer in rport->dd_data when we unregister a
4027 * FCP target port. But fc_remote_port_add zeros the space to which
4028 * rport->dd_data points. So, if we're reusing a previously
4029 * registered port, drop the reference that we took the last time we
4030 * registered the port.
4032 rport = ndlp->rport;
4034 rdata = rport->dd_data;
4035 /* break the link before dropping the ref */
4038 if (rdata->pnode == ndlp)
4040 rdata->pnode = NULL;
4042 /* drop reference for earlier registeration */
4043 put_device(&rport->dev);
4046 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
4047 "rport add: did:x%x flg:x%x type x%x",
4048 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4050 /* Don't add the remote port if unloading. */
4051 if (vport->load_flag & FC_UNLOADING)
4054 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
4055 if (!rport || !get_device(&rport->dev)) {
4056 dev_printk(KERN_WARNING, &phba->pcidev->dev,
4057 "Warning: fc_remote_port_add failed\n");
4061 /* initialize static port data */
4062 rport->maxframe_size = ndlp->nlp_maxframe;
4063 rport->supported_classes = ndlp->nlp_class_sup;
4064 rdata = rport->dd_data;
4065 rdata->pnode = lpfc_nlp_get(ndlp);
4067 if (ndlp->nlp_type & NLP_FCP_TARGET)
4068 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
4069 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
4070 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
4072 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
4073 fc_remote_port_rolechg(rport, rport_ids.roles);
4075 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4076 "3183 rport register x%06x, rport %p role x%x\n",
4077 ndlp->nlp_DID, rport, rport_ids.roles);
4079 if ((rport->scsi_target_id != -1) &&
4080 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
4081 ndlp->nlp_sid = rport->scsi_target_id;
4087 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
4089 struct fc_rport *rport = ndlp->rport;
4090 struct lpfc_vport *vport = ndlp->vport;
4091 struct lpfc_hba *phba = vport->phba;
4093 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
4096 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
4097 "rport delete: did:x%x flg:x%x type x%x",
4098 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4100 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4101 "3184 rport unregister x%06x, rport %p\n",
4102 ndlp->nlp_DID, rport);
4104 fc_remote_port_delete(rport);
4110 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
4112 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4114 spin_lock_irq(shost->host_lock);
4116 case NLP_STE_UNUSED_NODE:
4117 vport->fc_unused_cnt += count;
4119 case NLP_STE_PLOGI_ISSUE:
4120 vport->fc_plogi_cnt += count;
4122 case NLP_STE_ADISC_ISSUE:
4123 vport->fc_adisc_cnt += count;
4125 case NLP_STE_REG_LOGIN_ISSUE:
4126 vport->fc_reglogin_cnt += count;
4128 case NLP_STE_PRLI_ISSUE:
4129 vport->fc_prli_cnt += count;
4131 case NLP_STE_UNMAPPED_NODE:
4132 vport->fc_unmap_cnt += count;
4134 case NLP_STE_MAPPED_NODE:
4135 vport->fc_map_cnt += count;
4137 case NLP_STE_NPR_NODE:
4138 if (vport->fc_npr_cnt == 0 && count == -1)
4139 vport->fc_npr_cnt = 0;
4141 vport->fc_npr_cnt += count;
4144 spin_unlock_irq(shost->host_lock);
4148 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4149 int old_state, int new_state)
4151 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4153 if (new_state == NLP_STE_UNMAPPED_NODE) {
4154 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4155 ndlp->nlp_type |= NLP_FC_NODE;
4157 if (new_state == NLP_STE_MAPPED_NODE)
4158 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4159 if (new_state == NLP_STE_NPR_NODE)
4160 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
4162 /* FCP and NVME Transport interface */
4163 if ((old_state == NLP_STE_MAPPED_NODE ||
4164 old_state == NLP_STE_UNMAPPED_NODE)) {
4166 vport->phba->nport_event_cnt++;
4167 lpfc_unregister_remote_port(ndlp);
4170 /* Notify the NVME transport of this rport's loss on the
4171 * Initiator. For NVME Target, should upcall transport
4172 * in the else clause when API available.
4174 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) {
4175 vport->phba->nport_event_cnt++;
4176 if (vport->phba->nvmet_support == 0)
4177 lpfc_nvme_unregister_port(vport, ndlp);
4181 /* FCP and NVME Transport interfaces */
4183 if (new_state == NLP_STE_MAPPED_NODE ||
4184 new_state == NLP_STE_UNMAPPED_NODE) {
4185 if ((ndlp->nlp_fc4_type & NLP_FC4_FCP) ||
4186 (ndlp->nlp_DID == Fabric_DID)) {
4187 vport->phba->nport_event_cnt++;
4189 * Tell the fc transport about the port, if we haven't
4190 * already. If we have, and it's a scsi entity, be
4192 lpfc_register_remote_port(vport, ndlp);
4194 /* Notify the NVME transport of this new rport. */
4195 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) {
4196 if (vport->phba->nvmet_support == 0) {
4197 /* Register this rport with the transport.
4198 * Initiators take the NDLP ref count in
4201 vport->phba->nport_event_cnt++;
4202 lpfc_nvme_register_port(vport, ndlp);
4204 /* Just take an NDLP ref count since the
4205 * target does not register rports.
4212 if ((new_state == NLP_STE_MAPPED_NODE) &&
4213 (vport->stat_data_enabled)) {
4215 * A new target is discovered, if there is no buffer for
4216 * statistical data collection allocate buffer.
4218 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
4219 sizeof(struct lpfc_scsicmd_bkt),
4222 if (!ndlp->lat_data)
4223 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
4224 "0286 lpfc_nlp_state_cleanup failed to "
4225 "allocate statistical data buffer DID "
4226 "0x%x\n", ndlp->nlp_DID);
4229 * If the node just added to Mapped list was an FCP target,
4230 * but the remote port registration failed or assigned a target
4231 * id outside the presentable range - move the node to the
4234 if ((new_state == NLP_STE_MAPPED_NODE) &&
4235 (ndlp->nlp_type & NLP_FCP_TARGET) &&
4237 ndlp->rport->scsi_target_id == -1 ||
4238 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
4239 spin_lock_irq(shost->host_lock);
4240 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
4241 spin_unlock_irq(shost->host_lock);
4242 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4247 lpfc_nlp_state_name(char *buffer, size_t size, int state)
4249 static char *states[] = {
4250 [NLP_STE_UNUSED_NODE] = "UNUSED",
4251 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
4252 [NLP_STE_ADISC_ISSUE] = "ADISC",
4253 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
4254 [NLP_STE_PRLI_ISSUE] = "PRLI",
4255 [NLP_STE_LOGO_ISSUE] = "LOGO",
4256 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
4257 [NLP_STE_MAPPED_NODE] = "MAPPED",
4258 [NLP_STE_NPR_NODE] = "NPR",
4261 if (state < NLP_STE_MAX_STATE && states[state])
4262 strlcpy(buffer, states[state], size);
4264 snprintf(buffer, size, "unknown (%d)", state);
4269 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4272 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4273 int old_state = ndlp->nlp_state;
4274 char name1[16], name2[16];
4276 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4277 "0904 NPort state transition x%06x, %s -> %s\n",
4279 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
4280 lpfc_nlp_state_name(name2, sizeof(name2), state));
4282 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4283 "node statechg did:x%x old:%d ste:%d",
4284 ndlp->nlp_DID, old_state, state);
4286 if (old_state == NLP_STE_NPR_NODE &&
4287 state != NLP_STE_NPR_NODE)
4288 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4289 if (old_state == NLP_STE_UNMAPPED_NODE) {
4290 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
4291 ndlp->nlp_type &= ~NLP_FC_NODE;
4294 if (list_empty(&ndlp->nlp_listp)) {
4295 spin_lock_irq(shost->host_lock);
4296 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4297 spin_unlock_irq(shost->host_lock);
4298 } else if (old_state)
4299 lpfc_nlp_counters(vport, old_state, -1);
4301 ndlp->nlp_state = state;
4302 lpfc_nlp_counters(vport, state, 1);
4303 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
4307 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4309 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4311 if (list_empty(&ndlp->nlp_listp)) {
4312 spin_lock_irq(shost->host_lock);
4313 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4314 spin_unlock_irq(shost->host_lock);
4319 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4321 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4323 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4324 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4325 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4326 spin_lock_irq(shost->host_lock);
4327 list_del_init(&ndlp->nlp_listp);
4328 spin_unlock_irq(shost->host_lock);
4329 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4330 NLP_STE_UNUSED_NODE);
4334 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4336 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4337 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4338 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4339 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4340 NLP_STE_UNUSED_NODE);
4343 * lpfc_initialize_node - Initialize all fields of node object
4344 * @vport: Pointer to Virtual Port object.
4345 * @ndlp: Pointer to FC node object.
4346 * @did: FC_ID of the node.
4348 * This function is always called when node object need to be initialized.
4349 * It initializes all the fields of the node object. Although the reference
4350 * to phba from @ndlp can be obtained indirectly through it's reference to
4351 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4352 * to the life-span of the @ndlp might go beyond the existence of @vport as
4353 * the final release of ndlp is determined by its reference count. And, the
4354 * operation on @ndlp needs the reference to phba.
4357 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4360 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
4361 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
4362 setup_timer(&ndlp->nlp_delayfunc, lpfc_els_retry_delay,
4363 (unsigned long)ndlp);
4364 ndlp->nlp_DID = did;
4365 ndlp->vport = vport;
4366 ndlp->phba = vport->phba;
4367 ndlp->nlp_sid = NLP_NO_SID;
4368 ndlp->nlp_fc4_type = NLP_FC4_NONE;
4369 kref_init(&ndlp->kref);
4370 NLP_INT_NODE_ACT(ndlp);
4371 atomic_set(&ndlp->cmd_pending, 0);
4372 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4375 struct lpfc_nodelist *
4376 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4379 struct lpfc_hba *phba = vport->phba;
4381 unsigned long flags;
4382 unsigned long *active_rrqs_xri_bitmap = NULL;
4383 int rpi = LPFC_RPI_ALLOC_ERROR;
4388 if (phba->sli_rev == LPFC_SLI_REV4) {
4389 rpi = lpfc_sli4_alloc_rpi(vport->phba);
4390 if (rpi == LPFC_RPI_ALLOC_ERROR)
4394 spin_lock_irqsave(&phba->ndlp_lock, flags);
4395 /* The ndlp should not be in memory free mode */
4396 if (NLP_CHK_FREE_REQ(ndlp)) {
4397 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4398 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4399 "0277 lpfc_enable_node: ndlp:x%p "
4400 "usgmap:x%x refcnt:%d\n",
4401 (void *)ndlp, ndlp->nlp_usg_map,
4402 kref_read(&ndlp->kref));
4405 /* The ndlp should not already be in active mode */
4406 if (NLP_CHK_NODE_ACT(ndlp)) {
4407 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4408 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4409 "0278 lpfc_enable_node: ndlp:x%p "
4410 "usgmap:x%x refcnt:%d\n",
4411 (void *)ndlp, ndlp->nlp_usg_map,
4412 kref_read(&ndlp->kref));
4416 /* Keep the original DID */
4417 did = ndlp->nlp_DID;
4418 if (phba->sli_rev == LPFC_SLI_REV4)
4419 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap;
4421 /* re-initialize ndlp except of ndlp linked list pointer */
4422 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
4423 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
4424 lpfc_initialize_node(vport, ndlp, did);
4426 if (phba->sli_rev == LPFC_SLI_REV4)
4427 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap;
4429 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4430 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
4431 ndlp->nlp_rpi = rpi;
4432 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4433 "0008 rpi:%x DID:%x flg:%x refcnt:%d "
4434 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
4436 kref_read(&ndlp->kref),
4437 ndlp->nlp_usg_map, ndlp);
4441 if (state != NLP_STE_UNUSED_NODE)
4442 lpfc_nlp_set_state(vport, ndlp, state);
4444 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4445 "node enable: did:x%x",
4446 ndlp->nlp_DID, 0, 0);
4450 if (phba->sli_rev == LPFC_SLI_REV4)
4451 lpfc_sli4_free_rpi(vport->phba, rpi);
4456 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4459 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
4460 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
4461 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4462 * until ALL other outstanding threads have completed. We check
4463 * that the ndlp not already in the UNUSED state before we proceed.
4465 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4467 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
4468 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
4469 lpfc_cleanup_vports_rrqs(vport, ndlp);
4470 lpfc_unreg_rpi(vport, ndlp);
4478 * Start / ReStart rescue timer for Discovery / RSCN handling
4481 lpfc_set_disctmo(struct lpfc_vport *vport)
4483 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4484 struct lpfc_hba *phba = vport->phba;
4487 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
4488 /* For FAN, timeout should be greater than edtov */
4489 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
4491 /* Normal discovery timeout should be > than ELS/CT timeout
4492 * FC spec states we need 3 * ratov for CT requests
4494 tmo = ((phba->fc_ratov * 3) + 3);
4498 if (!timer_pending(&vport->fc_disctmo)) {
4499 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4500 "set disc timer: tmo:x%x state:x%x flg:x%x",
4501 tmo, vport->port_state, vport->fc_flag);
4504 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));
4505 spin_lock_irq(shost->host_lock);
4506 vport->fc_flag |= FC_DISC_TMO;
4507 spin_unlock_irq(shost->host_lock);
4509 /* Start Discovery Timer state <hba_state> */
4510 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4511 "0247 Start Discovery Timer state x%x "
4512 "Data: x%x x%lx x%x x%x\n",
4513 vport->port_state, tmo,
4514 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
4515 vport->fc_adisc_cnt);
4521 * Cancel rescue timer for Discovery / RSCN handling
4524 lpfc_can_disctmo(struct lpfc_vport *vport)
4526 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4527 unsigned long iflags;
4529 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4530 "can disc timer: state:x%x rtry:x%x flg:x%x",
4531 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
4533 /* Turn off discovery timer if its running */
4534 if (vport->fc_flag & FC_DISC_TMO) {
4535 spin_lock_irqsave(shost->host_lock, iflags);
4536 vport->fc_flag &= ~FC_DISC_TMO;
4537 spin_unlock_irqrestore(shost->host_lock, iflags);
4538 del_timer_sync(&vport->fc_disctmo);
4539 spin_lock_irqsave(&vport->work_port_lock, iflags);
4540 vport->work_port_events &= ~WORKER_DISC_TMO;
4541 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
4544 /* Cancel Discovery Timer state <hba_state> */
4545 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4546 "0248 Cancel Discovery Timer state x%x "
4547 "Data: x%x x%x x%x\n",
4548 vport->port_state, vport->fc_flag,
4549 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
4554 * Check specified ring for outstanding IOCB on the SLI queue
4555 * Return true if iocb matches the specified nport
4558 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
4559 struct lpfc_sli_ring *pring,
4560 struct lpfc_iocbq *iocb,
4561 struct lpfc_nodelist *ndlp)
4563 IOCB_t *icmd = &iocb->iocb;
4564 struct lpfc_vport *vport = ndlp->vport;
4566 if (iocb->vport != vport)
4569 if (pring->ringno == LPFC_ELS_RING) {
4570 switch (icmd->ulpCommand) {
4571 case CMD_GEN_REQUEST64_CR:
4572 if (iocb->context_un.ndlp == ndlp)
4574 case CMD_ELS_REQUEST64_CR:
4575 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
4577 case CMD_XMIT_ELS_RSP64_CX:
4578 if (iocb->context1 == (uint8_t *) ndlp)
4581 } else if (pring->ringno == LPFC_FCP_RING) {
4582 /* Skip match check if waiting to relogin to FCP target */
4583 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4584 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
4587 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
4595 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba,
4596 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring,
4597 struct list_head *dequeue_list)
4599 struct lpfc_iocbq *iocb, *next_iocb;
4601 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
4602 /* Check to see if iocb matches the nport */
4603 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
4604 /* match, dequeue */
4605 list_move_tail(&iocb->list, dequeue_list);
4610 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba,
4611 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
4613 struct lpfc_sli *psli = &phba->sli;
4616 spin_lock_irq(&phba->hbalock);
4617 for (i = 0; i < psli->num_rings; i++)
4618 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i],
4620 spin_unlock_irq(&phba->hbalock);
4624 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba,
4625 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
4627 struct lpfc_sli_ring *pring;
4628 struct lpfc_queue *qp = NULL;
4630 spin_lock_irq(&phba->hbalock);
4631 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
4635 spin_lock(&pring->ring_lock);
4636 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list);
4637 spin_unlock(&pring->ring_lock);
4639 spin_unlock_irq(&phba->hbalock);
4643 * Free resources / clean up outstanding I/Os
4644 * associated with nlp_rpi in the LPFC_NODELIST entry.
4647 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
4649 LIST_HEAD(completions);
4651 lpfc_fabric_abort_nport(ndlp);
4654 * Everything that matches on txcmplq will be returned
4655 * by firmware with a no rpi error.
4657 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4658 if (phba->sli_rev != LPFC_SLI_REV4)
4659 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions);
4661 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions);
4664 /* Cancel all the IOCBs from the completions list */
4665 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4672 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
4673 * @phba: Pointer to HBA context object.
4674 * @pmb: Pointer to mailbox object.
4676 * This function will issue an ELS LOGO command after completing
4680 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4682 struct lpfc_vport *vport = pmb->vport;
4683 struct lpfc_nodelist *ndlp;
4685 ndlp = (struct lpfc_nodelist *)(pmb->context1);
4688 lpfc_issue_els_logo(vport, ndlp, 0);
4689 mempool_free(pmb, phba->mbox_mem_pool);
4693 * Free rpi associated with LPFC_NODELIST entry.
4694 * This routine is called from lpfc_freenode(), when we are removing
4695 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4696 * LOGO that completes successfully, and we are waiting to PLOGI back
4697 * to the remote NPort. In addition, it is called after we receive
4698 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4699 * we are waiting to PLOGI back to the remote NPort.
4702 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4704 struct lpfc_hba *phba = vport->phba;
4706 int rc, acc_plogi = 1;
4709 if (ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4710 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) {
4711 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
4712 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
4713 "3366 RPI x%x needs to be "
4714 "unregistered nlp_flag x%x "
4716 ndlp->nlp_rpi, ndlp->nlp_flag,
4718 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4720 /* SLI4 ports require the physical rpi value. */
4721 rpi = ndlp->nlp_rpi;
4722 if (phba->sli_rev == LPFC_SLI_REV4)
4723 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
4725 lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
4726 mbox->vport = vport;
4727 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
4728 mbox->context1 = ndlp;
4729 mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
4731 if (phba->sli_rev == LPFC_SLI_REV4 &&
4732 (!(vport->load_flag & FC_UNLOADING)) &&
4733 (bf_get(lpfc_sli_intf_if_type,
4734 &phba->sli4_hba.sli_intf) ==
4735 LPFC_SLI_INTF_IF_TYPE_2) &&
4736 (kref_read(&ndlp->kref) > 0)) {
4737 mbox->context1 = lpfc_nlp_get(ndlp);
4739 lpfc_sli4_unreg_rpi_cmpl_clr;
4741 * accept PLOGIs after unreg_rpi_cmpl
4746 lpfc_sli_def_mbox_cmpl;
4749 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4750 if (rc == MBX_NOT_FINISHED) {
4751 mempool_free(mbox, phba->mbox_mem_pool);
4755 lpfc_no_rpi(phba, ndlp);
4757 if (phba->sli_rev != LPFC_SLI_REV4)
4759 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
4760 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4762 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4765 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4770 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4771 * @phba: pointer to lpfc hba data structure.
4773 * This routine is invoked to unregister all the currently registered RPIs
4777 lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
4779 struct lpfc_vport **vports;
4780 struct lpfc_nodelist *ndlp;
4781 struct Scsi_Host *shost;
4784 vports = lpfc_create_vport_work_array(phba);
4786 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
4787 "2884 Vport array allocation failed \n");
4790 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4791 shost = lpfc_shost_from_vport(vports[i]);
4792 spin_lock_irq(shost->host_lock);
4793 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
4794 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4795 /* The mempool_alloc might sleep */
4796 spin_unlock_irq(shost->host_lock);
4797 lpfc_unreg_rpi(vports[i], ndlp);
4798 spin_lock_irq(shost->host_lock);
4801 spin_unlock_irq(shost->host_lock);
4803 lpfc_destroy_vport_work_array(phba, vports);
4807 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
4809 struct lpfc_hba *phba = vport->phba;
4813 if (phba->sli_rev == LPFC_SLI_REV4) {
4814 lpfc_sli4_unreg_all_rpis(vport);
4818 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4820 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
4822 mbox->vport = vport;
4823 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4824 mbox->context1 = NULL;
4825 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
4826 if (rc != MBX_TIMEOUT)
4827 mempool_free(mbox, phba->mbox_mem_pool);
4829 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4830 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4831 "1836 Could not issue "
4832 "unreg_login(all_rpis) status %d\n", rc);
4837 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
4839 struct lpfc_hba *phba = vport->phba;
4843 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4845 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
4847 mbox->vport = vport;
4848 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4849 mbox->context1 = NULL;
4850 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
4851 if (rc != MBX_TIMEOUT)
4852 mempool_free(mbox, phba->mbox_mem_pool);
4854 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4855 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4856 "1815 Could not issue "
4857 "unreg_did (default rpis) status %d\n",
4863 * Free resources associated with LPFC_NODELIST entry
4864 * so it can be freed.
4867 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4869 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4870 struct lpfc_hba *phba = vport->phba;
4871 LPFC_MBOXQ_t *mb, *nextmb;
4872 struct lpfc_dmabuf *mp;
4874 /* Cleanup node for NPort <nlp_DID> */
4875 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4876 "0900 Cleanup node for NPort x%x "
4877 "Data: x%x x%x x%x\n",
4878 ndlp->nlp_DID, ndlp->nlp_flag,
4879 ndlp->nlp_state, ndlp->nlp_rpi);
4880 if (NLP_CHK_FREE_REQ(ndlp)) {
4881 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4882 "0280 lpfc_cleanup_node: ndlp:x%p "
4883 "usgmap:x%x refcnt:%d\n",
4884 (void *)ndlp, ndlp->nlp_usg_map,
4885 kref_read(&ndlp->kref));
4886 lpfc_dequeue_node(vport, ndlp);
4888 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4889 "0281 lpfc_cleanup_node: ndlp:x%p "
4890 "usgmap:x%x refcnt:%d\n",
4891 (void *)ndlp, ndlp->nlp_usg_map,
4892 kref_read(&ndlp->kref));
4893 lpfc_disable_node(vport, ndlp);
4897 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
4899 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
4900 if ((mb = phba->sli.mbox_active)) {
4901 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
4902 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
4903 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
4904 mb->context2 = NULL;
4905 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4909 spin_lock_irq(&phba->hbalock);
4910 /* Cleanup REG_LOGIN completions which are not yet processed */
4911 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
4912 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
4913 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
4914 (ndlp != (struct lpfc_nodelist *) mb->context2))
4917 mb->context2 = NULL;
4918 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4921 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
4922 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
4923 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
4924 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
4925 mp = (struct lpfc_dmabuf *) (mb->context1);
4927 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
4930 list_del(&mb->list);
4931 mempool_free(mb, phba->mbox_mem_pool);
4932 /* We shall not invoke the lpfc_nlp_put to decrement
4933 * the ndlp reference count as we are in the process
4934 * of lpfc_nlp_release.
4938 spin_unlock_irq(&phba->hbalock);
4940 lpfc_els_abort(phba, ndlp);
4942 spin_lock_irq(shost->host_lock);
4943 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
4944 spin_unlock_irq(shost->host_lock);
4946 ndlp->nlp_last_elscmd = 0;
4947 del_timer_sync(&ndlp->nlp_delayfunc);
4949 list_del_init(&ndlp->els_retry_evt.evt_listp);
4950 list_del_init(&ndlp->dev_loss_evt.evt_listp);
4951 lpfc_cleanup_vports_rrqs(vport, ndlp);
4952 lpfc_unreg_rpi(vport, ndlp);
4958 * Check to see if we can free the nlp back to the freelist.
4959 * If we are in the middle of using the nlp in the discovery state
4960 * machine, defer the free till we reach the end of the state machine.
4963 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4965 struct lpfc_hba *phba = vport->phba;
4966 struct lpfc_rport_data *rdata;
4967 struct fc_rport *rport;
4971 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4972 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
4973 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
4974 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
4975 /* For this case we need to cleanup the default rpi
4976 * allocated by the firmware.
4978 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4979 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n",
4980 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
4981 kref_read(&ndlp->kref),
4982 ndlp->nlp_usg_map, ndlp);
4983 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
4985 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
4986 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi);
4988 mempool_free(mbox, phba->mbox_mem_pool);
4991 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
4992 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
4993 mbox->vport = vport;
4994 mbox->context2 = ndlp;
4995 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4996 if (rc == MBX_NOT_FINISHED) {
4997 mempool_free(mbox, phba->mbox_mem_pool);
5002 lpfc_cleanup_node(vport, ndlp);
5005 * ndlp->rport must be set to NULL before it reaches here
5006 * i.e. break rport/node link before doing lpfc_nlp_put for
5007 * registered rport and then drop the reference of rport.
5011 * extra lpfc_nlp_put dropped the reference of ndlp
5012 * for registered rport so need to cleanup rport
5014 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
5015 "0940 removed node x%p DID x%x "
5016 " rport not null %p\n",
5017 ndlp, ndlp->nlp_DID, ndlp->rport);
5018 rport = ndlp->rport;
5019 rdata = rport->dd_data;
5020 rdata->pnode = NULL;
5022 put_device(&rport->dev);
5027 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
5030 D_ID mydid, ndlpdid, matchdid;
5032 if (did == Bcast_DID)
5035 /* First check for Direct match */
5036 if (ndlp->nlp_DID == did)
5039 /* Next check for area/domain identically equals 0 match */
5040 mydid.un.word = vport->fc_myDID;
5041 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
5045 matchdid.un.word = did;
5046 ndlpdid.un.word = ndlp->nlp_DID;
5047 if (matchdid.un.b.id == ndlpdid.un.b.id) {
5048 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
5049 (mydid.un.b.area == matchdid.un.b.area)) {
5050 /* This code is supposed to match the ID
5051 * for a private loop device that is
5052 * connect to fl_port. But we need to
5053 * check that the port did not just go
5054 * from pt2pt to fabric or we could end
5055 * up matching ndlp->nlp_DID 000001 to
5056 * fabric DID 0x20101
5058 if ((ndlpdid.un.b.domain == 0) &&
5059 (ndlpdid.un.b.area == 0)) {
5060 if (ndlpdid.un.b.id &&
5061 vport->phba->fc_topology ==
5068 matchdid.un.word = ndlp->nlp_DID;
5069 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
5070 (mydid.un.b.area == ndlpdid.un.b.area)) {
5071 if ((matchdid.un.b.domain == 0) &&
5072 (matchdid.un.b.area == 0)) {
5073 if (matchdid.un.b.id)
5081 /* Search for a nodelist entry */
5082 static struct lpfc_nodelist *
5083 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
5085 struct lpfc_nodelist *ndlp;
5088 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5089 if (lpfc_matchdid(vport, ndlp, did)) {
5090 data1 = (((uint32_t) ndlp->nlp_state << 24) |
5091 ((uint32_t) ndlp->nlp_xri << 16) |
5092 ((uint32_t) ndlp->nlp_type << 8) |
5093 ((uint32_t) ndlp->nlp_rpi & 0xff));
5094 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5095 "0929 FIND node DID "
5096 "Data: x%p x%x x%x x%x %p\n",
5097 ndlp, ndlp->nlp_DID,
5098 ndlp->nlp_flag, data1,
5099 ndlp->active_rrqs_xri_bitmap);
5104 /* FIND node did <did> NOT FOUND */
5105 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5106 "0932 FIND node did x%x NOT FOUND.\n", did);
5110 struct lpfc_nodelist *
5111 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
5113 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5114 struct lpfc_nodelist *ndlp;
5115 unsigned long iflags;
5117 spin_lock_irqsave(shost->host_lock, iflags);
5118 ndlp = __lpfc_findnode_did(vport, did);
5119 spin_unlock_irqrestore(shost->host_lock, iflags);
5123 struct lpfc_nodelist *
5124 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
5126 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5127 struct lpfc_nodelist *ndlp;
5129 ndlp = lpfc_findnode_did(vport, did);
5131 if (vport->phba->nvmet_support)
5133 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
5134 lpfc_rscn_payload_check(vport, did) == 0)
5136 ndlp = lpfc_nlp_init(vport, did);
5139 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5140 spin_lock_irq(shost->host_lock);
5141 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5142 spin_unlock_irq(shost->host_lock);
5144 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5145 if (vport->phba->nvmet_support)
5147 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
5150 spin_lock_irq(shost->host_lock);
5151 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5152 spin_unlock_irq(shost->host_lock);
5156 /* The NVME Target does not want to actively manage an rport.
5157 * The goal is to allow the target to reset its state and clear
5158 * pending IO in preparation for the initiator to recover.
5160 if ((vport->fc_flag & FC_RSCN_MODE) &&
5161 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
5162 if (lpfc_rscn_payload_check(vport, did)) {
5164 /* Since this node is marked for discovery,
5165 * delay timeout is not needed.
5167 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5169 /* NVME Target mode waits until rport is known to be
5170 * impacted by the RSCN before it transitions. No
5171 * active management - just go to NPR provided the
5172 * node had a valid login.
5174 if (vport->phba->nvmet_support)
5177 /* If we've already received a PLOGI from this NPort
5178 * we don't need to try to discover it again.
5180 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
5183 spin_lock_irq(shost->host_lock);
5184 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5185 spin_unlock_irq(shost->host_lock);
5189 /* If the initiator received a PLOGI from this NPort or if the
5190 * initiator is already in the process of discovery on it,
5191 * there's no need to try to discover it again.
5193 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
5194 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5195 (!vport->phba->nvmet_support &&
5196 ndlp->nlp_flag & NLP_RCV_PLOGI))
5199 if (vport->phba->nvmet_support)
5202 /* Moving to NPR state clears unsolicited flags and
5203 * allows for rediscovery
5205 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5207 spin_lock_irq(shost->host_lock);
5208 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5209 spin_unlock_irq(shost->host_lock);
5214 /* Build a list of nodes to discover based on the loopmap */
5216 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
5218 struct lpfc_hba *phba = vport->phba;
5220 uint32_t alpa, index;
5222 if (!lpfc_is_link_up(phba))
5225 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
5228 /* Check for loop map present or not */
5229 if (phba->alpa_map[0]) {
5230 for (j = 1; j <= phba->alpa_map[0]; j++) {
5231 alpa = phba->alpa_map[j];
5232 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
5234 lpfc_setup_disc_node(vport, alpa);
5237 /* No alpamap, so try all alpa's */
5238 for (j = 0; j < FC_MAXLOOP; j++) {
5239 /* If cfg_scan_down is set, start from highest
5240 * ALPA (0xef) to lowest (0x1).
5242 if (vport->cfg_scan_down)
5245 index = FC_MAXLOOP - j - 1;
5246 alpa = lpfcAlpaArray[index];
5247 if ((vport->fc_myDID & 0xff) == alpa)
5249 lpfc_setup_disc_node(vport, alpa);
5257 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
5260 struct lpfc_sli *psli = &phba->sli;
5261 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING];
5262 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING];
5266 * if it's not a physical port or if we already send
5267 * clear_la then don't send it.
5269 if ((phba->link_state >= LPFC_CLEAR_LA) ||
5270 (vport->port_type != LPFC_PHYSICAL_PORT) ||
5271 (phba->sli_rev == LPFC_SLI_REV4))
5274 /* Link up discovery */
5275 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
5276 phba->link_state = LPFC_CLEAR_LA;
5277 lpfc_clear_la(phba, mbox);
5278 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
5279 mbox->vport = vport;
5280 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5281 if (rc == MBX_NOT_FINISHED) {
5282 mempool_free(mbox, phba->mbox_mem_pool);
5283 lpfc_disc_flush_list(vport);
5284 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5285 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5286 phba->link_state = LPFC_HBA_ERROR;
5291 /* Reg_vpi to tell firmware to resume normal operations */
5293 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
5295 LPFC_MBOXQ_t *regvpimbox;
5297 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5299 lpfc_reg_vpi(vport, regvpimbox);
5300 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
5301 regvpimbox->vport = vport;
5302 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
5303 == MBX_NOT_FINISHED) {
5304 mempool_free(regvpimbox, phba->mbox_mem_pool);
5309 /* Start Link up / RSCN discovery on NPR nodes */
5311 lpfc_disc_start(struct lpfc_vport *vport)
5313 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5314 struct lpfc_hba *phba = vport->phba;
5316 uint32_t clear_la_pending;
5318 if (!lpfc_is_link_up(phba)) {
5319 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5320 "3315 Link is not up %x\n",
5325 if (phba->link_state == LPFC_CLEAR_LA)
5326 clear_la_pending = 1;
5328 clear_la_pending = 0;
5330 if (vport->port_state < LPFC_VPORT_READY)
5331 vport->port_state = LPFC_DISC_AUTH;
5333 lpfc_set_disctmo(vport);
5335 vport->fc_prevDID = vport->fc_myDID;
5336 vport->num_disc_nodes = 0;
5338 /* Start Discovery state <hba_state> */
5339 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5340 "0202 Start Discovery hba state x%x "
5341 "Data: x%x x%x x%x\n",
5342 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
5343 vport->fc_adisc_cnt);
5345 /* First do ADISCs - if any */
5346 num_sent = lpfc_els_disc_adisc(vport);
5351 /* Register the VPI for SLI3, NPIV only. */
5352 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5353 !(vport->fc_flag & FC_PT2PT) &&
5354 !(vport->fc_flag & FC_RSCN_MODE) &&
5355 (phba->sli_rev < LPFC_SLI_REV4)) {
5356 lpfc_issue_clear_la(phba, vport);
5357 lpfc_issue_reg_vpi(phba, vport);
5362 * For SLI2, we need to set port_state to READY and continue
5365 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
5366 /* If we get here, there is nothing to ADISC */
5367 lpfc_issue_clear_la(phba, vport);
5369 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
5370 vport->num_disc_nodes = 0;
5371 /* go thru NPR nodes and issue ELS PLOGIs */
5372 if (vport->fc_npr_cnt)
5373 lpfc_els_disc_plogi(vport);
5375 if (!vport->num_disc_nodes) {
5376 spin_lock_irq(shost->host_lock);
5377 vport->fc_flag &= ~FC_NDISC_ACTIVE;
5378 spin_unlock_irq(shost->host_lock);
5379 lpfc_can_disctmo(vport);
5382 vport->port_state = LPFC_VPORT_READY;
5384 /* Next do PLOGIs - if any */
5385 num_sent = lpfc_els_disc_plogi(vport);
5390 if (vport->fc_flag & FC_RSCN_MODE) {
5391 /* Check to see if more RSCNs came in while we
5392 * were processing this one.
5394 if ((vport->fc_rscn_id_cnt == 0) &&
5395 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
5396 spin_lock_irq(shost->host_lock);
5397 vport->fc_flag &= ~FC_RSCN_MODE;
5398 spin_unlock_irq(shost->host_lock);
5399 lpfc_can_disctmo(vport);
5401 lpfc_els_handle_rscn(vport);
5408 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
5409 * ring the match the sppecified nodelist.
5412 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
5414 LIST_HEAD(completions);
5415 struct lpfc_sli *psli;
5417 struct lpfc_iocbq *iocb, *next_iocb;
5418 struct lpfc_sli_ring *pring;
5421 pring = lpfc_phba_elsring(phba);
5423 /* Error matching iocb on txq or txcmplq
5424 * First check the txq.
5426 spin_lock_irq(&phba->hbalock);
5427 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
5428 if (iocb->context1 != ndlp) {
5432 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
5433 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
5435 list_move_tail(&iocb->list, &completions);
5439 /* Next check the txcmplq */
5440 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
5441 if (iocb->context1 != ndlp) {
5445 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
5446 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
5447 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
5450 spin_unlock_irq(&phba->hbalock);
5452 /* Cancel all the IOCBs from the completions list */
5453 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
5458 lpfc_disc_flush_list(struct lpfc_vport *vport)
5460 struct lpfc_nodelist *ndlp, *next_ndlp;
5461 struct lpfc_hba *phba = vport->phba;
5463 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
5464 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5466 if (!NLP_CHK_NODE_ACT(ndlp))
5468 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5469 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
5470 lpfc_free_tx(phba, ndlp);
5477 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
5479 lpfc_els_flush_rscn(vport);
5480 lpfc_els_flush_cmd(vport);
5481 lpfc_disc_flush_list(vport);
5484 /*****************************************************************************/
5486 * NAME: lpfc_disc_timeout
5488 * FUNCTION: Fibre Channel driver discovery timeout routine.
5490 * EXECUTION ENVIRONMENT: interrupt only
5498 /*****************************************************************************/
5500 lpfc_disc_timeout(unsigned long ptr)
5502 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
5503 struct lpfc_hba *phba = vport->phba;
5504 uint32_t tmo_posted;
5505 unsigned long flags = 0;
5507 if (unlikely(!phba))
5510 spin_lock_irqsave(&vport->work_port_lock, flags);
5511 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
5513 vport->work_port_events |= WORKER_DISC_TMO;
5514 spin_unlock_irqrestore(&vport->work_port_lock, flags);
5517 lpfc_worker_wake_up(phba);
5522 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
5524 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5525 struct lpfc_hba *phba = vport->phba;
5526 struct lpfc_sli *psli = &phba->sli;
5527 struct lpfc_nodelist *ndlp, *next_ndlp;
5528 LPFC_MBOXQ_t *initlinkmbox;
5529 int rc, clrlaerr = 0;
5531 if (!(vport->fc_flag & FC_DISC_TMO))
5534 spin_lock_irq(shost->host_lock);
5535 vport->fc_flag &= ~FC_DISC_TMO;
5536 spin_unlock_irq(shost->host_lock);
5538 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
5539 "disc timeout: state:x%x rtry:x%x flg:x%x",
5540 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
5542 switch (vport->port_state) {
5544 case LPFC_LOCAL_CFG_LINK:
5546 * port_state is identically LPFC_LOCAL_CFG_LINK while
5547 * waiting for FAN timeout
5549 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
5550 "0221 FAN timeout\n");
5552 /* Start discovery by sending FLOGI, clean up old rpis */
5553 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5555 if (!NLP_CHK_NODE_ACT(ndlp))
5557 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
5559 if (ndlp->nlp_type & NLP_FABRIC) {
5560 /* Clean up the ndlp on Fabric connections */
5561 lpfc_drop_node(vport, ndlp);
5563 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
5564 /* Fail outstanding IO now since device
5565 * is marked for PLOGI.
5567 lpfc_unreg_rpi(vport, ndlp);
5570 if (vport->port_state != LPFC_FLOGI) {
5571 if (phba->sli_rev <= LPFC_SLI_REV3)
5572 lpfc_initial_flogi(vport);
5574 lpfc_issue_init_vfi(vport);
5581 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
5582 /* Initial FLOGI timeout */
5583 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5584 "0222 Initial %s timeout\n",
5585 vport->vpi ? "FDISC" : "FLOGI");
5587 /* Assume no Fabric and go on with discovery.
5588 * Check for outstanding ELS FLOGI to abort.
5591 /* FLOGI failed, so just use loop map to make discovery list */
5592 lpfc_disc_list_loopmap(vport);
5594 /* Start discovery */
5595 lpfc_disc_start(vport);
5598 case LPFC_FABRIC_CFG_LINK:
5599 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5601 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5602 "0223 Timeout while waiting for "
5603 "NameServer login\n");
5604 /* Next look for NameServer ndlp */
5605 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5606 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
5607 lpfc_els_abort(phba, ndlp);
5609 /* ReStart discovery */
5613 /* Check for wait for NameServer Rsp timeout */
5614 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5615 "0224 NameServer Query timeout "
5617 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5619 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
5620 /* Try it one more time */
5621 vport->fc_ns_retry++;
5622 vport->gidft_inp = 0;
5623 rc = lpfc_issue_gidft(vport);
5627 vport->fc_ns_retry = 0;
5631 * Discovery is over.
5632 * set port_state to PORT_READY if SLI2.
5633 * cmpl_reg_vpi will set port_state to READY for SLI3.
5635 if (phba->sli_rev < LPFC_SLI_REV4) {
5636 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5637 lpfc_issue_reg_vpi(phba, vport);
5639 lpfc_issue_clear_la(phba, vport);
5640 vport->port_state = LPFC_VPORT_READY;
5644 /* Setup and issue mailbox INITIALIZE LINK command */
5645 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5646 if (!initlinkmbox) {
5647 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5648 "0206 Device Discovery "
5649 "completion error\n");
5650 phba->link_state = LPFC_HBA_ERROR;
5654 lpfc_linkdown(phba);
5655 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
5656 phba->cfg_link_speed);
5657 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
5658 initlinkmbox->vport = vport;
5659 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5660 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
5661 lpfc_set_loopback_flag(phba);
5662 if (rc == MBX_NOT_FINISHED)
5663 mempool_free(initlinkmbox, phba->mbox_mem_pool);
5667 case LPFC_DISC_AUTH:
5668 /* Node Authentication timeout */
5669 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5670 "0227 Node Authentication timeout\n");
5671 lpfc_disc_flush_list(vport);
5674 * set port_state to PORT_READY if SLI2.
5675 * cmpl_reg_vpi will set port_state to READY for SLI3.
5677 if (phba->sli_rev < LPFC_SLI_REV4) {
5678 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5679 lpfc_issue_reg_vpi(phba, vport);
5680 else { /* NPIV Not enabled */
5681 lpfc_issue_clear_la(phba, vport);
5682 vport->port_state = LPFC_VPORT_READY;
5687 case LPFC_VPORT_READY:
5688 if (vport->fc_flag & FC_RSCN_MODE) {
5689 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5690 "0231 RSCN timeout Data: x%x "
5692 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5694 /* Cleanup any outstanding ELS commands */
5695 lpfc_els_flush_cmd(vport);
5697 lpfc_els_flush_rscn(vport);
5698 lpfc_disc_flush_list(vport);
5703 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5704 "0273 Unexpected discovery timeout, "
5705 "vport State x%x\n", vport->port_state);
5709 switch (phba->link_state) {
5711 /* CLEAR LA timeout */
5712 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5713 "0228 CLEAR LA timeout\n");
5718 lpfc_issue_clear_la(phba, vport);
5720 case LPFC_LINK_UNKNOWN:
5721 case LPFC_WARM_START:
5722 case LPFC_INIT_START:
5723 case LPFC_INIT_MBX_CMDS:
5724 case LPFC_LINK_DOWN:
5725 case LPFC_HBA_ERROR:
5726 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5727 "0230 Unexpected timeout, hba link "
5728 "state x%x\n", phba->link_state);
5732 case LPFC_HBA_READY:
5737 lpfc_disc_flush_list(vport);
5738 if (phba->sli_rev != LPFC_SLI_REV4) {
5739 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &=
5740 ~LPFC_STOP_IOCB_EVENT;
5741 psli->sli3_ring[LPFC_FCP_RING].flag &=
5742 ~LPFC_STOP_IOCB_EVENT;
5744 vport->port_state = LPFC_VPORT_READY;
5750 * This routine handles processing a NameServer REG_LOGIN mailbox
5751 * command upon completion. It is setup in the LPFC_MBOXQ
5752 * as the completion routine when the command is
5753 * handed off to the SLI layer.
5756 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5758 MAILBOX_t *mb = &pmb->u.mb;
5759 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
5760 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
5761 struct lpfc_vport *vport = pmb->vport;
5763 pmb->context1 = NULL;
5764 pmb->context2 = NULL;
5766 if (phba->sli_rev < LPFC_SLI_REV4)
5767 ndlp->nlp_rpi = mb->un.varWords[0];
5768 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
5769 ndlp->nlp_type |= NLP_FABRIC;
5770 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
5771 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5772 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n",
5773 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
5774 kref_read(&ndlp->kref),
5775 ndlp->nlp_usg_map, ndlp);
5777 * Start issuing Fabric-Device Management Interface (FDMI) command to
5778 * 0xfffffa (FDMI well known port).
5779 * DHBA -> DPRT -> RHBA -> RPA (physical port)
5780 * DPRT -> RPRT (vports)
5782 if (vport->port_type == LPFC_PHYSICAL_PORT)
5783 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
5785 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
5788 /* decrement the node reference count held for this callback
5792 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5794 mempool_free(pmb, phba->mbox_mem_pool);
5800 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
5802 uint16_t *rpi = param;
5804 /* check for active node */
5805 if (!NLP_CHK_NODE_ACT(ndlp))
5808 return ndlp->nlp_rpi == *rpi;
5812 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
5814 return memcmp(&ndlp->nlp_portname, param,
5815 sizeof(ndlp->nlp_portname)) == 0;
5818 static struct lpfc_nodelist *
5819 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
5821 struct lpfc_nodelist *ndlp;
5823 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5824 if (filter(ndlp, param)) {
5825 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5826 "3185 FIND node filter %p DID "
5827 "Data: x%p x%x x%x\n",
5828 filter, ndlp, ndlp->nlp_DID,
5833 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5834 "3186 FIND node filter %p NOT FOUND.\n", filter);
5839 * This routine looks up the ndlp lists for the given RPI. If rpi found it
5840 * returns the node list element pointer else return NULL.
5842 struct lpfc_nodelist *
5843 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
5845 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
5849 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
5850 * returns the node element list pointer else return NULL.
5852 struct lpfc_nodelist *
5853 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
5855 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5856 struct lpfc_nodelist *ndlp;
5858 spin_lock_irq(shost->host_lock);
5859 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
5860 spin_unlock_irq(shost->host_lock);
5865 * This routine looks up the ndlp lists for the given RPI. If the rpi
5866 * is found, the routine returns the node element list pointer else
5869 struct lpfc_nodelist *
5870 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
5872 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5873 struct lpfc_nodelist *ndlp;
5875 spin_lock_irq(shost->host_lock);
5876 ndlp = __lpfc_findnode_rpi(vport, rpi);
5877 spin_unlock_irq(shost->host_lock);
5882 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
5883 * @phba: pointer to lpfc hba data structure.
5884 * @vpi: the physical host virtual N_Port identifier.
5886 * This routine finds a vport on a HBA (referred by @phba) through a
5887 * @vpi. The function walks the HBA's vport list and returns the address
5888 * of the vport with the matching @vpi.
5891 * NULL - No vport with the matching @vpi found
5892 * Otherwise - Address to the vport with the matching @vpi.
5895 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
5897 struct lpfc_vport *vport;
5898 unsigned long flags;
5901 /* The physical ports are always vpi 0 - translate is unnecessary. */
5904 * Translate the physical vpi to the logical vpi. The
5905 * vport stores the logical vpi.
5907 for (i = 0; i < phba->max_vpi; i++) {
5908 if (vpi == phba->vpi_ids[i])
5912 if (i >= phba->max_vpi) {
5913 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
5914 "2936 Could not find Vport mapped "
5915 "to vpi %d\n", vpi);
5920 spin_lock_irqsave(&phba->hbalock, flags);
5921 list_for_each_entry(vport, &phba->port_list, listentry) {
5922 if (vport->vpi == i) {
5923 spin_unlock_irqrestore(&phba->hbalock, flags);
5927 spin_unlock_irqrestore(&phba->hbalock, flags);
5931 struct lpfc_nodelist *
5932 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did)
5934 struct lpfc_nodelist *ndlp;
5935 int rpi = LPFC_RPI_ALLOC_ERROR;
5937 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
5938 rpi = lpfc_sli4_alloc_rpi(vport->phba);
5939 if (rpi == LPFC_RPI_ALLOC_ERROR)
5943 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
5945 if (vport->phba->sli_rev == LPFC_SLI_REV4)
5946 lpfc_sli4_free_rpi(vport->phba, rpi);
5950 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
5952 lpfc_initialize_node(vport, ndlp, did);
5953 INIT_LIST_HEAD(&ndlp->nlp_listp);
5954 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
5955 ndlp->nlp_rpi = rpi;
5956 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5957 "0007 rpi:%x DID:%x flg:%x refcnt:%d "
5958 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
5960 kref_read(&ndlp->kref),
5961 ndlp->nlp_usg_map, ndlp);
5963 ndlp->active_rrqs_xri_bitmap =
5964 mempool_alloc(vport->phba->active_rrq_pool,
5966 if (ndlp->active_rrqs_xri_bitmap)
5967 memset(ndlp->active_rrqs_xri_bitmap, 0,
5968 ndlp->phba->cfg_rrq_xri_bitmap_sz);
5973 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
5974 "node init: did:x%x",
5975 ndlp->nlp_DID, 0, 0);
5980 /* This routine releases all resources associated with a specifc NPort's ndlp
5981 * and mempool_free's the nodelist.
5984 lpfc_nlp_release(struct kref *kref)
5986 struct lpfc_hba *phba;
5987 unsigned long flags;
5988 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
5991 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5992 "node release: did:x%x flg:x%x type:x%x",
5993 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
5995 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
5996 "0279 lpfc_nlp_release: ndlp:x%p did %x "
5997 "usgmap:x%x refcnt:%d rpi:%x\n",
5998 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map,
5999 kref_read(&ndlp->kref), ndlp->nlp_rpi);
6001 /* remove ndlp from action. */
6002 lpfc_nlp_remove(ndlp->vport, ndlp);
6004 /* clear the ndlp active flag for all release cases */
6006 spin_lock_irqsave(&phba->ndlp_lock, flags);
6007 NLP_CLR_NODE_ACT(ndlp);
6008 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6009 if (phba->sli_rev == LPFC_SLI_REV4)
6010 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
6012 /* free ndlp memory for final ndlp release */
6013 if (NLP_CHK_FREE_REQ(ndlp)) {
6014 kfree(ndlp->lat_data);
6015 if (phba->sli_rev == LPFC_SLI_REV4)
6016 mempool_free(ndlp->active_rrqs_xri_bitmap,
6017 ndlp->phba->active_rrq_pool);
6018 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
6022 /* This routine bumps the reference count for a ndlp structure to ensure
6023 * that one discovery thread won't free a ndlp while another discovery thread
6026 struct lpfc_nodelist *
6027 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
6029 struct lpfc_hba *phba;
6030 unsigned long flags;
6033 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6034 "node get: did:x%x flg:x%x refcnt:x%x",
6035 ndlp->nlp_DID, ndlp->nlp_flag,
6036 kref_read(&ndlp->kref));
6037 /* The check of ndlp usage to prevent incrementing the
6038 * ndlp reference count that is in the process of being
6042 spin_lock_irqsave(&phba->ndlp_lock, flags);
6043 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
6044 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6045 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6046 "0276 lpfc_nlp_get: ndlp:x%p "
6047 "usgmap:x%x refcnt:%d\n",
6048 (void *)ndlp, ndlp->nlp_usg_map,
6049 kref_read(&ndlp->kref));
6052 kref_get(&ndlp->kref);
6053 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6058 /* This routine decrements the reference count for a ndlp structure. If the
6059 * count goes to 0, this indicates the the associated nodelist should be
6060 * freed. Returning 1 indicates the ndlp resource has been released; on the
6061 * other hand, returning 0 indicates the ndlp resource has not been released
6065 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
6067 struct lpfc_hba *phba;
6068 unsigned long flags;
6073 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6074 "node put: did:x%x flg:x%x refcnt:x%x",
6075 ndlp->nlp_DID, ndlp->nlp_flag,
6076 kref_read(&ndlp->kref));
6078 spin_lock_irqsave(&phba->ndlp_lock, flags);
6079 /* Check the ndlp memory free acknowledge flag to avoid the
6080 * possible race condition that kref_put got invoked again
6081 * after previous one has done ndlp memory free.
6083 if (NLP_CHK_FREE_ACK(ndlp)) {
6084 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6085 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6086 "0274 lpfc_nlp_put: ndlp:x%p "
6087 "usgmap:x%x refcnt:%d\n",
6088 (void *)ndlp, ndlp->nlp_usg_map,
6089 kref_read(&ndlp->kref));
6092 /* Check the ndlp inactivate log flag to avoid the possible
6093 * race condition that kref_put got invoked again after ndlp
6094 * is already in inactivating state.
6096 if (NLP_CHK_IACT_REQ(ndlp)) {
6097 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6098 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6099 "0275 lpfc_nlp_put: ndlp:x%p "
6100 "usgmap:x%x refcnt:%d\n",
6101 (void *)ndlp, ndlp->nlp_usg_map,
6102 kref_read(&ndlp->kref));
6105 /* For last put, mark the ndlp usage flags to make sure no
6106 * other kref_get and kref_put on the same ndlp shall get
6107 * in between the process when the final kref_put has been
6108 * invoked on this ndlp.
6110 if (kref_read(&ndlp->kref) == 1) {
6111 /* Indicate ndlp is put to inactive state. */
6112 NLP_SET_IACT_REQ(ndlp);
6113 /* Acknowledge ndlp memory free has been seen. */
6114 if (NLP_CHK_FREE_REQ(ndlp))
6115 NLP_SET_FREE_ACK(ndlp);
6117 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6118 /* Note, the kref_put returns 1 when decrementing a reference
6119 * count that was 1, it invokes the release callback function,
6120 * but it still left the reference count as 1 (not actually
6121 * performs the last decrementation). Otherwise, it actually
6122 * decrements the reference count and returns 0.
6124 return kref_put(&ndlp->kref, lpfc_nlp_release);
6127 /* This routine free's the specified nodelist if it is not in use
6128 * by any other discovery thread. This routine returns 1 if the
6129 * ndlp has been freed. A return value of 0 indicates the ndlp is
6130 * not yet been released.
6133 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
6135 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6136 "node not used: did:x%x flg:x%x refcnt:x%x",
6137 ndlp->nlp_DID, ndlp->nlp_flag,
6138 kref_read(&ndlp->kref));
6139 if (kref_read(&ndlp->kref) == 1)
6140 if (lpfc_nlp_put(ndlp))
6146 * lpfc_fcf_inuse - Check if FCF can be unregistered.
6147 * @phba: Pointer to hba context object.
6149 * This function iterate through all FC nodes associated
6150 * will all vports to check if there is any node with
6151 * fc_rports associated with it. If there is an fc_rport
6152 * associated with the node, then the node is either in
6153 * discovered state or its devloss_timer is pending.
6156 lpfc_fcf_inuse(struct lpfc_hba *phba)
6158 struct lpfc_vport **vports;
6160 struct lpfc_nodelist *ndlp;
6161 struct Scsi_Host *shost;
6163 vports = lpfc_create_vport_work_array(phba);
6165 /* If driver cannot allocate memory, indicate fcf is in use */
6169 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6170 shost = lpfc_shost_from_vport(vports[i]);
6171 spin_lock_irq(shost->host_lock);
6173 * IF the CVL_RCVD bit is not set then we have sent the
6175 * If dev_loss fires while we are waiting we do not want to
6178 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
6179 spin_unlock_irq(shost->host_lock);
6183 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
6184 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
6185 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
6187 spin_unlock_irq(shost->host_lock);
6189 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
6191 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
6192 "2624 RPI %x DID %x flag %x "
6193 "still logged in\n",
6194 ndlp->nlp_rpi, ndlp->nlp_DID,
6198 spin_unlock_irq(shost->host_lock);
6201 lpfc_destroy_vport_work_array(phba, vports);
6206 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
6207 * @phba: Pointer to hba context object.
6208 * @mboxq: Pointer to mailbox object.
6210 * This function frees memory associated with the mailbox command.
6213 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6215 struct lpfc_vport *vport = mboxq->vport;
6216 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6218 if (mboxq->u.mb.mbxStatus) {
6219 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6220 "2555 UNREG_VFI mbxStatus error x%x "
6222 mboxq->u.mb.mbxStatus, vport->port_state);
6224 spin_lock_irq(shost->host_lock);
6225 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
6226 spin_unlock_irq(shost->host_lock);
6227 mempool_free(mboxq, phba->mbox_mem_pool);
6232 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
6233 * @phba: Pointer to hba context object.
6234 * @mboxq: Pointer to mailbox object.
6236 * This function frees memory associated with the mailbox command.
6239 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6241 struct lpfc_vport *vport = mboxq->vport;
6243 if (mboxq->u.mb.mbxStatus) {
6244 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6245 "2550 UNREG_FCFI mbxStatus error x%x "
6247 mboxq->u.mb.mbxStatus, vport->port_state);
6249 mempool_free(mboxq, phba->mbox_mem_pool);
6254 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
6255 * @phba: Pointer to hba context object.
6257 * This function prepare the HBA for unregistering the currently registered
6258 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
6262 lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
6264 struct lpfc_vport **vports;
6265 struct lpfc_nodelist *ndlp;
6266 struct Scsi_Host *shost;
6269 /* Unregister RPIs */
6270 if (lpfc_fcf_inuse(phba))
6271 lpfc_unreg_hba_rpis(phba);
6273 /* At this point, all discovery is aborted */
6274 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
6276 /* Unregister VPIs */
6277 vports = lpfc_create_vport_work_array(phba);
6278 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
6279 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6280 /* Stop FLOGI/FDISC retries */
6281 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
6283 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
6284 lpfc_cleanup_pending_mbox(vports[i]);
6285 if (phba->sli_rev == LPFC_SLI_REV4)
6286 lpfc_sli4_unreg_all_rpis(vports[i]);
6287 lpfc_mbx_unreg_vpi(vports[i]);
6288 shost = lpfc_shost_from_vport(vports[i]);
6289 spin_lock_irq(shost->host_lock);
6290 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6291 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
6292 spin_unlock_irq(shost->host_lock);
6294 lpfc_destroy_vport_work_array(phba, vports);
6295 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) {
6296 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
6298 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
6299 lpfc_cleanup_pending_mbox(phba->pport);
6300 if (phba->sli_rev == LPFC_SLI_REV4)
6301 lpfc_sli4_unreg_all_rpis(phba->pport);
6302 lpfc_mbx_unreg_vpi(phba->pport);
6303 shost = lpfc_shost_from_vport(phba->pport);
6304 spin_lock_irq(shost->host_lock);
6305 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6306 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED;
6307 spin_unlock_irq(shost->host_lock);
6310 /* Cleanup any outstanding ELS commands */
6311 lpfc_els_flush_all_cmd(phba);
6313 /* Unregister the physical port VFI */
6314 rc = lpfc_issue_unreg_vfi(phba->pport);
6319 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
6320 * @phba: Pointer to hba context object.
6322 * This function issues synchronous unregister FCF mailbox command to HBA to
6323 * unregister the currently registered FCF record. The driver does not reset
6324 * the driver FCF usage state flags.
6326 * Return 0 if successfully issued, none-zero otherwise.
6329 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
6334 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6336 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6337 "2551 UNREG_FCFI mbox allocation failed"
6338 "HBA state x%x\n", phba->pport->port_state);
6341 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
6342 mbox->vport = phba->pport;
6343 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
6344 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6346 if (rc == MBX_NOT_FINISHED) {
6347 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6348 "2552 Unregister FCFI command failed rc x%x "
6350 rc, phba->pport->port_state);
6357 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
6358 * @phba: Pointer to hba context object.
6360 * This function unregisters the currently reigstered FCF. This function
6361 * also tries to find another FCF for discovery by rescan the HBA FCF table.
6364 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
6368 /* Preparation for unregistering fcf */
6369 rc = lpfc_unregister_fcf_prep(phba);
6371 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6372 "2748 Failed to prepare for unregistering "
6373 "HBA's FCF record: rc=%d\n", rc);
6377 /* Now, unregister FCF record and reset HBA FCF state */
6378 rc = lpfc_sli4_unregister_fcf(phba);
6381 /* Reset HBA FCF states after successful unregister FCF */
6382 phba->fcf.fcf_flag = 0;
6383 phba->fcf.current_rec.flag = 0;
6386 * If driver is not unloading, check if there is any other
6387 * FCF record that can be used for discovery.
6389 if ((phba->pport->load_flag & FC_UNLOADING) ||
6390 (phba->link_state < LPFC_LINK_UP))
6393 /* This is considered as the initial FCF discovery scan */
6394 spin_lock_irq(&phba->hbalock);
6395 phba->fcf.fcf_flag |= FCF_INIT_DISC;
6396 spin_unlock_irq(&phba->hbalock);
6398 /* Reset FCF roundrobin bmask for new discovery */
6399 lpfc_sli4_clear_fcf_rr_bmask(phba);
6401 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6404 spin_lock_irq(&phba->hbalock);
6405 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
6406 spin_unlock_irq(&phba->hbalock);
6407 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6408 "2553 lpfc_unregister_unused_fcf failed "
6409 "to read FCF record HBA state x%x\n",
6410 phba->pport->port_state);
6415 * lpfc_unregister_fcf - Unregister the currently registered fcf record
6416 * @phba: Pointer to hba context object.
6418 * This function just unregisters the currently reigstered FCF. It does not
6419 * try to find another FCF for discovery.
6422 lpfc_unregister_fcf(struct lpfc_hba *phba)
6426 /* Preparation for unregistering fcf */
6427 rc = lpfc_unregister_fcf_prep(phba);
6429 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6430 "2749 Failed to prepare for unregistering "
6431 "HBA's FCF record: rc=%d\n", rc);
6435 /* Now, unregister FCF record and reset HBA FCF state */
6436 rc = lpfc_sli4_unregister_fcf(phba);
6439 /* Set proper HBA FCF states after successful unregister FCF */
6440 spin_lock_irq(&phba->hbalock);
6441 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
6442 spin_unlock_irq(&phba->hbalock);
6446 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
6447 * @phba: Pointer to hba context object.
6449 * This function check if there are any connected remote port for the FCF and
6450 * if all the devices are disconnected, this function unregister FCFI.
6451 * This function also tries to use another FCF for discovery.
6454 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
6457 * If HBA is not running in FIP mode, if HBA does not support
6458 * FCoE, if FCF discovery is ongoing, or if FCF has not been
6459 * registered, do nothing.
6461 spin_lock_irq(&phba->hbalock);
6462 if (!(phba->hba_flag & HBA_FCOE_MODE) ||
6463 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
6464 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
6465 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
6466 (phba->pport->port_state == LPFC_FLOGI)) {
6467 spin_unlock_irq(&phba->hbalock);
6470 spin_unlock_irq(&phba->hbalock);
6472 if (lpfc_fcf_inuse(phba))
6475 lpfc_unregister_fcf_rescan(phba);
6479 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
6480 * @phba: Pointer to hba context object.
6481 * @buff: Buffer containing the FCF connection table as in the config
6483 * This function create driver data structure for the FCF connection
6484 * record table read from config region 23.
6487 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
6490 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6491 struct lpfc_fcf_conn_hdr *conn_hdr;
6492 struct lpfc_fcf_conn_rec *conn_rec;
6493 uint32_t record_count;
6496 /* Free the current connect table */
6497 list_for_each_entry_safe(conn_entry, next_conn_entry,
6498 &phba->fcf_conn_rec_list, list) {
6499 list_del_init(&conn_entry->list);
6503 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
6504 record_count = conn_hdr->length * sizeof(uint32_t)/
6505 sizeof(struct lpfc_fcf_conn_rec);
6507 conn_rec = (struct lpfc_fcf_conn_rec *)
6508 (buff + sizeof(struct lpfc_fcf_conn_hdr));
6510 for (i = 0; i < record_count; i++) {
6511 if (!(conn_rec[i].flags & FCFCNCT_VALID))
6513 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
6516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6517 "2566 Failed to allocate connection"
6522 memcpy(&conn_entry->conn_rec, &conn_rec[i],
6523 sizeof(struct lpfc_fcf_conn_rec));
6524 list_add_tail(&conn_entry->list,
6525 &phba->fcf_conn_rec_list);
6528 if (!list_empty(&phba->fcf_conn_rec_list)) {
6530 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list,
6532 conn_rec = &conn_entry->conn_rec;
6533 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6534 "3345 FCF connection list rec[%02d]: "
6535 "flags:x%04x, vtag:x%04x, "
6536 "fabric_name:x%02x:%02x:%02x:%02x:"
6537 "%02x:%02x:%02x:%02x, "
6538 "switch_name:x%02x:%02x:%02x:%02x:"
6539 "%02x:%02x:%02x:%02x\n", i++,
6540 conn_rec->flags, conn_rec->vlan_tag,
6541 conn_rec->fabric_name[0],
6542 conn_rec->fabric_name[1],
6543 conn_rec->fabric_name[2],
6544 conn_rec->fabric_name[3],
6545 conn_rec->fabric_name[4],
6546 conn_rec->fabric_name[5],
6547 conn_rec->fabric_name[6],
6548 conn_rec->fabric_name[7],
6549 conn_rec->switch_name[0],
6550 conn_rec->switch_name[1],
6551 conn_rec->switch_name[2],
6552 conn_rec->switch_name[3],
6553 conn_rec->switch_name[4],
6554 conn_rec->switch_name[5],
6555 conn_rec->switch_name[6],
6556 conn_rec->switch_name[7]);
6562 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6563 * @phba: Pointer to hba context object.
6564 * @buff: Buffer containing the FCoE parameter data structure.
6566 * This function update driver data structure with config
6567 * parameters read from config region 23.
6570 lpfc_read_fcoe_param(struct lpfc_hba *phba,
6573 struct lpfc_fip_param_hdr *fcoe_param_hdr;
6574 struct lpfc_fcoe_params *fcoe_param;
6576 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
6578 fcoe_param = (struct lpfc_fcoe_params *)
6579 (buff + sizeof(struct lpfc_fip_param_hdr));
6581 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
6582 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
6585 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
6586 phba->valid_vlan = 1;
6587 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
6591 phba->fc_map[0] = fcoe_param->fc_map[0];
6592 phba->fc_map[1] = fcoe_param->fc_map[1];
6593 phba->fc_map[2] = fcoe_param->fc_map[2];
6598 * lpfc_get_rec_conf23 - Get a record type in config region data.
6599 * @buff: Buffer containing config region 23 data.
6600 * @size: Size of the data buffer.
6601 * @rec_type: Record type to be searched.
6603 * This function searches config region data to find the beginning
6604 * of the record specified by record_type. If record found, this
6605 * function return pointer to the record else return NULL.
6608 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
6610 uint32_t offset = 0, rec_length;
6612 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
6613 (size < sizeof(uint32_t)))
6616 rec_length = buff[offset + 1];
6619 * One TLV record has one word header and number of data words
6620 * specified in the rec_length field of the record header.
6622 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
6624 if (buff[offset] == rec_type)
6625 return &buff[offset];
6627 if (buff[offset] == LPFC_REGION23_LAST_REC)
6630 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
6631 rec_length = buff[offset + 1];
6637 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6638 * @phba: Pointer to lpfc_hba data structure.
6639 * @buff: Buffer containing config region 23 data.
6640 * @size: Size of the data buffer.
6642 * This function parses the FCoE config parameters in config region 23 and
6643 * populate driver data structure with the parameters.
6646 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
6650 uint32_t offset = 0;
6654 * If data size is less than 2 words signature and version cannot be
6657 if (size < 2*sizeof(uint32_t))
6660 /* Check the region signature first */
6661 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
6662 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6663 "2567 Config region 23 has bad signature\n");
6669 /* Check the data structure version */
6670 if (buff[offset] != LPFC_REGION23_VERSION) {
6671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6672 "2568 Config region 23 has bad version\n");
6677 /* Read FCoE param record */
6678 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6679 size - offset, FCOE_PARAM_TYPE);
6681 lpfc_read_fcoe_param(phba, rec_ptr);
6683 /* Read FCF connection table */
6684 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6685 size - offset, FCOE_CONN_TBL_TYPE);
6687 lpfc_read_fcf_conn_tbl(phba, rec_ptr);