1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. 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 & ELS_XRI_ABORT_EVENT)
642 lpfc_sli4_els_xri_abort_event_proc(phba);
643 if (phba->hba_flag & ASYNC_EVENT)
644 lpfc_sli4_async_event_proc(phba);
645 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
646 spin_lock_irq(&phba->hbalock);
647 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
648 spin_unlock_irq(&phba->hbalock);
649 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
651 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
652 lpfc_sli4_fcf_redisc_event_proc(phba);
655 vports = lpfc_create_vport_work_array(phba);
657 for (i = 0; i <= phba->max_vports; i++) {
659 * We could have no vports in array if unloading, so if
660 * this happens then just use the pport
662 if (vports[i] == NULL && i == 0)
668 spin_lock_irq(&vport->work_port_lock);
669 work_port_events = vport->work_port_events;
670 vport->work_port_events &= ~work_port_events;
671 spin_unlock_irq(&vport->work_port_lock);
672 if (work_port_events & WORKER_DISC_TMO)
673 lpfc_disc_timeout_handler(vport);
674 if (work_port_events & WORKER_ELS_TMO)
675 lpfc_els_timeout_handler(vport);
676 if (work_port_events & WORKER_HB_TMO)
677 lpfc_hb_timeout_handler(phba);
678 if (work_port_events & WORKER_MBOX_TMO)
679 lpfc_mbox_timeout_handler(phba);
680 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
681 lpfc_unblock_fabric_iocbs(phba);
682 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
683 lpfc_ramp_down_queue_handler(phba);
684 if (work_port_events & WORKER_DELAYED_DISC_TMO)
685 lpfc_delayed_disc_timeout_handler(vport);
687 lpfc_destroy_vport_work_array(phba, vports);
689 pring = lpfc_phba_elsring(phba);
690 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
691 status >>= (4*LPFC_ELS_RING);
692 if (pring && (status & HA_RXMASK ||
693 pring->flag & LPFC_DEFERRED_RING_EVENT ||
694 phba->hba_flag & HBA_SP_QUEUE_EVT)) {
695 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
696 pring->flag |= LPFC_DEFERRED_RING_EVENT;
697 /* Preserve legacy behavior. */
698 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT))
699 set_bit(LPFC_DATA_READY, &phba->data_flags);
701 if (phba->link_state >= LPFC_LINK_UP ||
702 phba->link_flag & LS_MDS_LOOPBACK) {
703 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
704 lpfc_sli_handle_slow_ring_event(phba, pring,
709 if (phba->sli_rev == LPFC_SLI_REV4)
710 lpfc_drain_txq(phba);
712 * Turn on Ring interrupts
714 if (phba->sli_rev <= LPFC_SLI_REV3) {
715 spin_lock_irq(&phba->hbalock);
716 control = readl(phba->HCregaddr);
717 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
718 lpfc_debugfs_slow_ring_trc(phba,
719 "WRK Enable ring: cntl:x%x hacopy:x%x",
720 control, ha_copy, 0);
722 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
723 writel(control, phba->HCregaddr);
724 readl(phba->HCregaddr); /* flush */
726 lpfc_debugfs_slow_ring_trc(phba,
727 "WRK Ring ok: cntl:x%x hacopy:x%x",
728 control, ha_copy, 0);
730 spin_unlock_irq(&phba->hbalock);
733 lpfc_work_list_done(phba);
737 lpfc_do_work(void *p)
739 struct lpfc_hba *phba = p;
742 set_user_nice(current, MIN_NICE);
743 current->flags |= PF_NOFREEZE;
744 phba->data_flags = 0;
746 while (!kthread_should_stop()) {
747 /* wait and check worker queue activities */
748 rc = wait_event_interruptible(phba->work_waitq,
749 (test_and_clear_bit(LPFC_DATA_READY,
751 || kthread_should_stop()));
752 /* Signal wakeup shall terminate the worker thread */
754 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
755 "0433 Wakeup on signal: rc=x%x\n", rc);
759 /* Attend pending lpfc data processing */
760 lpfc_work_done(phba);
762 phba->worker_thread = NULL;
763 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
764 "0432 Worker thread stopped.\n");
769 * This is only called to handle FC worker events. Since this a rare
770 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
771 * embedding it in the IOCB.
774 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
777 struct lpfc_work_evt *evtp;
781 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
782 * be queued to worker thread for processing
784 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
788 evtp->evt_arg1 = arg1;
789 evtp->evt_arg2 = arg2;
792 spin_lock_irqsave(&phba->hbalock, flags);
793 list_add_tail(&evtp->evt_listp, &phba->work_list);
794 spin_unlock_irqrestore(&phba->hbalock, flags);
796 lpfc_worker_wake_up(phba);
802 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
804 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
805 struct lpfc_hba *phba = vport->phba;
806 struct lpfc_nodelist *ndlp, *next_ndlp;
808 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
809 if (!NLP_CHK_NODE_ACT(ndlp))
811 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
813 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
814 ((vport->port_type == LPFC_NPIV_PORT) &&
815 (ndlp->nlp_DID == NameServer_DID)))
816 lpfc_unreg_rpi(vport, ndlp);
818 /* Leave Fabric nodes alone on link down */
819 if ((phba->sli_rev < LPFC_SLI_REV4) &&
820 (!remove && ndlp->nlp_type & NLP_FABRIC))
822 lpfc_disc_state_machine(vport, ndlp, NULL,
825 : NLP_EVT_DEVICE_RECOVERY);
827 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
828 if (phba->sli_rev == LPFC_SLI_REV4)
829 lpfc_sli4_unreg_all_rpis(vport);
830 lpfc_mbx_unreg_vpi(vport);
831 spin_lock_irq(shost->host_lock);
832 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
833 spin_unlock_irq(shost->host_lock);
838 lpfc_port_link_failure(struct lpfc_vport *vport)
840 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
842 /* Cleanup any outstanding received buffers */
843 lpfc_cleanup_rcv_buffers(vport);
845 /* Cleanup any outstanding RSCN activity */
846 lpfc_els_flush_rscn(vport);
848 /* Cleanup any outstanding ELS commands */
849 lpfc_els_flush_cmd(vport);
851 lpfc_cleanup_rpis(vport, 0);
853 /* Turn off discovery timer if its running */
854 lpfc_can_disctmo(vport);
858 lpfc_linkdown_port(struct lpfc_vport *vport)
860 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
862 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
863 fc_host_post_event(shost, fc_get_event_number(),
864 FCH_EVT_LINKDOWN, 0);
866 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
867 "Link Down: state:x%x rtry:x%x flg:x%x",
868 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
870 lpfc_port_link_failure(vport);
872 /* Stop delayed Nport discovery */
873 spin_lock_irq(shost->host_lock);
874 vport->fc_flag &= ~FC_DISC_DELAYED;
875 spin_unlock_irq(shost->host_lock);
876 del_timer_sync(&vport->delayed_disc_tmo);
880 lpfc_linkdown(struct lpfc_hba *phba)
882 struct lpfc_vport *vport = phba->pport;
883 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
884 struct lpfc_vport **vports;
888 if (phba->link_state == LPFC_LINK_DOWN) {
889 if (phba->sli4_hba.conf_trunk) {
890 phba->trunk_link.link0.state = 0;
891 phba->trunk_link.link1.state = 0;
892 phba->trunk_link.link2.state = 0;
893 phba->trunk_link.link3.state = 0;
897 /* Block all SCSI stack I/Os */
898 lpfc_scsi_dev_block(phba);
900 phba->defer_flogi_acc_flag = false;
902 spin_lock_irq(&phba->hbalock);
903 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
904 spin_unlock_irq(&phba->hbalock);
905 if (phba->link_state > LPFC_LINK_DOWN) {
906 phba->link_state = LPFC_LINK_DOWN;
907 if (phba->sli4_hba.conf_trunk) {
908 phba->trunk_link.link0.state = 0;
909 phba->trunk_link.link1.state = 0;
910 phba->trunk_link.link2.state = 0;
911 phba->trunk_link.link3.state = 0;
913 spin_lock_irq(shost->host_lock);
914 phba->pport->fc_flag &= ~FC_LBIT;
915 spin_unlock_irq(shost->host_lock);
917 vports = lpfc_create_vport_work_array(phba);
918 if (vports != NULL) {
919 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
920 /* Issue a LINK DOWN event to all nodes */
921 lpfc_linkdown_port(vports[i]);
923 vports[i]->fc_myDID = 0;
925 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
926 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
927 if (phba->nvmet_support)
928 lpfc_nvmet_update_targetport(phba);
930 lpfc_nvme_update_localport(vports[i]);
934 lpfc_destroy_vport_work_array(phba, vports);
935 /* Clean up any firmware default rpi's */
936 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
938 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
940 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
941 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
942 == MBX_NOT_FINISHED) {
943 mempool_free(mb, phba->mbox_mem_pool);
947 /* Setup myDID for link up if we are in pt2pt mode */
948 if (phba->pport->fc_flag & FC_PT2PT) {
949 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
951 lpfc_config_link(phba, mb);
952 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
954 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
955 == MBX_NOT_FINISHED) {
956 mempool_free(mb, phba->mbox_mem_pool);
959 spin_lock_irq(shost->host_lock);
960 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
961 phba->pport->rcv_flogi_cnt = 0;
962 spin_unlock_irq(shost->host_lock);
968 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
970 struct lpfc_nodelist *ndlp;
972 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
973 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
974 if (!NLP_CHK_NODE_ACT(ndlp))
976 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
978 if (ndlp->nlp_type & NLP_FABRIC) {
979 /* On Linkup its safe to clean up the ndlp
980 * from Fabric connections.
982 if (ndlp->nlp_DID != Fabric_DID)
983 lpfc_unreg_rpi(vport, ndlp);
984 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
985 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
986 /* Fail outstanding IO now since device is
989 lpfc_unreg_rpi(vport, ndlp);
995 lpfc_linkup_port(struct lpfc_vport *vport)
997 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
998 struct lpfc_hba *phba = vport->phba;
1000 if ((vport->load_flag & FC_UNLOADING) != 0)
1003 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1004 "Link Up: top:x%x speed:x%x flg:x%x",
1005 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
1007 /* If NPIV is not enabled, only bring the physical port up */
1008 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1009 (vport != phba->pport))
1012 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
1013 fc_host_post_event(shost, fc_get_event_number(),
1016 spin_lock_irq(shost->host_lock);
1017 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
1018 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
1019 vport->fc_flag |= FC_NDISC_ACTIVE;
1020 vport->fc_ns_retry = 0;
1021 spin_unlock_irq(shost->host_lock);
1023 if (vport->fc_flag & FC_LBIT)
1024 lpfc_linkup_cleanup_nodes(vport);
1029 lpfc_linkup(struct lpfc_hba *phba)
1031 struct lpfc_vport **vports;
1033 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
1035 phba->link_state = LPFC_LINK_UP;
1037 /* Unblock fabric iocbs if they are blocked */
1038 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
1039 del_timer_sync(&phba->fabric_block_timer);
1041 vports = lpfc_create_vport_work_array(phba);
1043 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1044 lpfc_linkup_port(vports[i]);
1045 lpfc_destroy_vport_work_array(phba, vports);
1047 /* Clear the pport flogi counter in case the link down was
1048 * absorbed without an ACQE. No lock here - in worker thread
1049 * and discovery is synchronized.
1051 spin_lock_irq(shost->host_lock);
1052 phba->pport->rcv_flogi_cnt = 0;
1053 spin_unlock_irq(shost->host_lock);
1055 /* reinitialize initial FLOGI flag */
1056 phba->hba_flag &= ~(HBA_FLOGI_ISSUED);
1057 phba->defer_flogi_acc_flag = false;
1063 * This routine handles processing a CLEAR_LA mailbox
1064 * command upon completion. It is setup in the LPFC_MBOXQ
1065 * as the completion routine when the command is
1066 * handed off to the SLI layer. SLI3 only.
1069 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1071 struct lpfc_vport *vport = pmb->vport;
1072 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1073 struct lpfc_sli *psli = &phba->sli;
1074 MAILBOX_t *mb = &pmb->u.mb;
1077 /* Since we don't do discovery right now, turn these off here */
1078 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1079 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1081 /* Check for error */
1082 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
1083 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1084 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1085 "0320 CLEAR_LA mbxStatus error x%x hba "
1087 mb->mbxStatus, vport->port_state);
1088 phba->link_state = LPFC_HBA_ERROR;
1092 if (vport->port_type == LPFC_PHYSICAL_PORT)
1093 phba->link_state = LPFC_HBA_READY;
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);
1102 mempool_free(pmb, phba->mbox_mem_pool);
1106 /* Device Discovery completes */
1107 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1108 "0225 Device Discovery completes\n");
1109 mempool_free(pmb, phba->mbox_mem_pool);
1111 spin_lock_irq(shost->host_lock);
1112 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
1113 spin_unlock_irq(shost->host_lock);
1115 lpfc_can_disctmo(vport);
1117 /* turn on Link Attention interrupts */
1119 spin_lock_irq(&phba->hbalock);
1120 psli->sli_flag |= LPFC_PROCESS_LA;
1121 control = readl(phba->HCregaddr);
1122 control |= HC_LAINT_ENA;
1123 writel(control, phba->HCregaddr);
1124 readl(phba->HCregaddr); /* flush */
1125 spin_unlock_irq(&phba->hbalock);
1132 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1134 struct lpfc_vport *vport = pmb->vport;
1137 if (pmb->u.mb.mbxStatus)
1140 mempool_free(pmb, phba->mbox_mem_pool);
1142 /* don't perform discovery for SLI4 loopback diagnostic test */
1143 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1144 !(phba->hba_flag & HBA_FCOE_MODE) &&
1145 (phba->link_flag & LS_LOOPBACK_MODE))
1148 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
1149 vport->fc_flag & FC_PUBLIC_LOOP &&
1150 !(vport->fc_flag & FC_LBIT)) {
1151 /* Need to wait for FAN - use discovery timer
1152 * for timeout. port_state is identically
1153 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1155 lpfc_set_disctmo(vport);
1159 /* Start discovery by sending a FLOGI. port_state is identically
1160 * LPFC_FLOGI while waiting for FLOGI cmpl
1162 if (vport->port_state != LPFC_FLOGI) {
1163 if (phba->bbcredit_support && phba->cfg_enable_bbcr) {
1164 bbscn = bf_get(lpfc_bbscn_def,
1165 &phba->sli4_hba.bbscn_params);
1166 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf;
1167 vport->fc_sparam.cmn.bbRcvSizeMsb |= (bbscn << 4);
1169 lpfc_initial_flogi(vport);
1170 } else if (vport->fc_flag & FC_PT2PT) {
1171 lpfc_disc_start(vport);
1176 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1177 "0306 CONFIG_LINK mbxStatus error x%x "
1179 pmb->u.mb.mbxStatus, vport->port_state);
1180 mempool_free(pmb, phba->mbox_mem_pool);
1182 lpfc_linkdown(phba);
1184 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1185 "0200 CONFIG_LINK bad hba state x%x\n",
1188 lpfc_issue_clear_la(phba, vport);
1193 * lpfc_sli4_clear_fcf_rr_bmask
1194 * @phba pointer to the struct lpfc_hba for this port.
1195 * This fucnction resets the round robin bit mask and clears the
1196 * fcf priority list. The list deletions are done while holding the
1197 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1198 * from the lpfc_fcf_pri record.
1201 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
1203 struct lpfc_fcf_pri *fcf_pri;
1204 struct lpfc_fcf_pri *next_fcf_pri;
1205 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
1206 spin_lock_irq(&phba->hbalock);
1207 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
1208 &phba->fcf.fcf_pri_list, list) {
1209 list_del_init(&fcf_pri->list);
1210 fcf_pri->fcf_rec.flag = 0;
1212 spin_unlock_irq(&phba->hbalock);
1215 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1217 struct lpfc_vport *vport = mboxq->vport;
1219 if (mboxq->u.mb.mbxStatus) {
1220 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1221 "2017 REG_FCFI mbxStatus error x%x "
1223 mboxq->u.mb.mbxStatus, vport->port_state);
1227 /* Start FCoE discovery by sending a FLOGI. */
1228 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1229 /* Set the FCFI registered flag */
1230 spin_lock_irq(&phba->hbalock);
1231 phba->fcf.fcf_flag |= FCF_REGISTERED;
1232 spin_unlock_irq(&phba->hbalock);
1234 /* If there is a pending FCoE event, restart FCF table scan. */
1235 if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
1236 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
1239 /* Mark successful completion of FCF table scan */
1240 spin_lock_irq(&phba->hbalock);
1241 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1242 phba->hba_flag &= ~FCF_TS_INPROG;
1243 if (vport->port_state != LPFC_FLOGI) {
1244 phba->hba_flag |= FCF_RR_INPROG;
1245 spin_unlock_irq(&phba->hbalock);
1246 lpfc_issue_init_vfi(vport);
1249 spin_unlock_irq(&phba->hbalock);
1253 spin_lock_irq(&phba->hbalock);
1254 phba->hba_flag &= ~FCF_RR_INPROG;
1255 spin_unlock_irq(&phba->hbalock);
1257 mempool_free(mboxq, phba->mbox_mem_pool);
1261 * lpfc_fab_name_match - Check if the fcf fabric name match.
1262 * @fab_name: pointer to fabric name.
1263 * @new_fcf_record: pointer to fcf record.
1265 * This routine compare the fcf record's fabric name with provided
1266 * fabric name. If the fabric name are identical this function
1267 * returns 1 else return 0.
1270 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1272 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1274 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1276 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1278 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1280 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1282 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
1284 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1286 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1292 * lpfc_sw_name_match - Check if the fcf switch name match.
1293 * @fab_name: pointer to fabric name.
1294 * @new_fcf_record: pointer to fcf record.
1296 * This routine compare the fcf record's switch name with provided
1297 * switch name. If the switch name are identical this function
1298 * returns 1 else return 0.
1301 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1303 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1305 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1307 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
1309 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1311 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1313 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1315 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1317 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1323 * lpfc_mac_addr_match - Check if the fcf mac address match.
1324 * @mac_addr: pointer to mac address.
1325 * @new_fcf_record: pointer to fcf record.
1327 * This routine compare the fcf record's mac address with HBA's
1328 * FCF mac address. If the mac addresses are identical this function
1329 * returns 1 else return 0.
1332 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
1334 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1336 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1338 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1340 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1342 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1344 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
1350 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1352 return (curr_vlan_id == new_vlan_id);
1356 * lpfc_update_fcf_record - Update driver fcf record
1357 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1358 * @phba: pointer to lpfc hba data structure.
1359 * @fcf_index: Index for the lpfc_fcf_record.
1360 * @new_fcf_record: pointer to hba fcf record.
1362 * This routine updates the driver FCF priority record from the new HBA FCF
1363 * record. This routine is called with the host lock held.
1366 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
1367 struct fcf_record *new_fcf_record
1370 struct lpfc_fcf_pri *fcf_pri;
1372 lockdep_assert_held(&phba->hbalock);
1374 fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1375 fcf_pri->fcf_rec.fcf_index = fcf_index;
1376 /* FCF record priority */
1377 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
1382 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1383 * @fcf: pointer to driver fcf record.
1384 * @new_fcf_record: pointer to fcf record.
1386 * This routine copies the FCF information from the FCF
1387 * record to lpfc_hba data structure.
1390 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1391 struct fcf_record *new_fcf_record)
1394 fcf_rec->fabric_name[0] =
1395 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
1396 fcf_rec->fabric_name[1] =
1397 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
1398 fcf_rec->fabric_name[2] =
1399 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
1400 fcf_rec->fabric_name[3] =
1401 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
1402 fcf_rec->fabric_name[4] =
1403 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
1404 fcf_rec->fabric_name[5] =
1405 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
1406 fcf_rec->fabric_name[6] =
1407 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
1408 fcf_rec->fabric_name[7] =
1409 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
1411 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1412 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1413 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1414 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1415 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1416 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1417 /* FCF record index */
1418 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1419 /* FCF record priority */
1420 fcf_rec->priority = new_fcf_record->fip_priority;
1422 fcf_rec->switch_name[0] =
1423 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
1424 fcf_rec->switch_name[1] =
1425 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
1426 fcf_rec->switch_name[2] =
1427 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
1428 fcf_rec->switch_name[3] =
1429 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
1430 fcf_rec->switch_name[4] =
1431 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
1432 fcf_rec->switch_name[5] =
1433 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
1434 fcf_rec->switch_name[6] =
1435 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
1436 fcf_rec->switch_name[7] =
1437 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
1441 * lpfc_update_fcf_record - Update driver fcf record
1442 * @phba: pointer to lpfc hba data structure.
1443 * @fcf_rec: pointer to driver fcf record.
1444 * @new_fcf_record: pointer to hba fcf record.
1445 * @addr_mode: address mode to be set to the driver fcf record.
1446 * @vlan_id: vlan tag to be set to the driver fcf record.
1447 * @flag: flag bits to be set to the driver fcf record.
1449 * This routine updates the driver FCF record from the new HBA FCF record
1450 * together with the address mode, vlan_id, and other informations. This
1451 * routine is called with the host lock held.
1454 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1455 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1456 uint16_t vlan_id, uint32_t flag)
1458 lockdep_assert_held(&phba->hbalock);
1460 /* Copy the fields from the HBA's FCF record */
1461 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1462 /* Update other fields of driver FCF record */
1463 fcf_rec->addr_mode = addr_mode;
1464 fcf_rec->vlan_id = vlan_id;
1465 fcf_rec->flag |= (flag | RECORD_VALID);
1466 __lpfc_update_fcf_record_pri(phba,
1467 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
1472 * lpfc_register_fcf - Register the FCF with hba.
1473 * @phba: pointer to lpfc hba data structure.
1475 * This routine issues a register fcfi mailbox command to register
1479 lpfc_register_fcf(struct lpfc_hba *phba)
1481 LPFC_MBOXQ_t *fcf_mbxq;
1484 spin_lock_irq(&phba->hbalock);
1485 /* If the FCF is not available do nothing. */
1486 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
1487 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1488 spin_unlock_irq(&phba->hbalock);
1492 /* The FCF is already registered, start discovery */
1493 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
1494 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1495 phba->hba_flag &= ~FCF_TS_INPROG;
1496 if (phba->pport->port_state != LPFC_FLOGI &&
1497 phba->pport->fc_flag & FC_FABRIC) {
1498 phba->hba_flag |= FCF_RR_INPROG;
1499 spin_unlock_irq(&phba->hbalock);
1500 lpfc_initial_flogi(phba->pport);
1503 spin_unlock_irq(&phba->hbalock);
1506 spin_unlock_irq(&phba->hbalock);
1508 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1510 spin_lock_irq(&phba->hbalock);
1511 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1512 spin_unlock_irq(&phba->hbalock);
1516 lpfc_reg_fcfi(phba, fcf_mbxq);
1517 fcf_mbxq->vport = phba->pport;
1518 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1519 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
1520 if (rc == MBX_NOT_FINISHED) {
1521 spin_lock_irq(&phba->hbalock);
1522 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1523 spin_unlock_irq(&phba->hbalock);
1524 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
1531 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1532 * @phba: pointer to lpfc hba data structure.
1533 * @new_fcf_record: pointer to fcf record.
1534 * @boot_flag: Indicates if this record used by boot bios.
1535 * @addr_mode: The address mode to be used by this FCF
1536 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1538 * This routine compare the fcf record with connect list obtained from the
1539 * config region to decide if this FCF can be used for SAN discovery. It returns
1540 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1541 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1542 * is used by boot bios and addr_mode will indicate the addressing mode to be
1543 * used for this FCF when the function returns.
1544 * If the FCF record need to be used with a particular vlan id, the vlan is
1545 * set in the vlan_id on return of the function. If not VLAN tagging need to
1546 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1549 lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1550 struct fcf_record *new_fcf_record,
1551 uint32_t *boot_flag, uint32_t *addr_mode,
1554 struct lpfc_fcf_conn_entry *conn_entry;
1555 int i, j, fcf_vlan_id = 0;
1557 /* Find the lowest VLAN id in the FCF record */
1558 for (i = 0; i < 512; i++) {
1559 if (new_fcf_record->vlan_bitmap[i]) {
1560 fcf_vlan_id = i * 8;
1562 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1570 /* FCF not valid/available or solicitation in progress */
1571 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1572 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||
1573 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))
1576 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
1578 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1580 if (phba->valid_vlan)
1581 *vlan_id = phba->vlan_id;
1583 *vlan_id = LPFC_FCOE_NULL_VID;
1588 * If there are no FCF connection table entry, driver connect to all
1591 if (list_empty(&phba->fcf_conn_rec_list)) {
1593 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1597 * When there are no FCF connect entries, use driver's default
1598 * addressing mode - FPMA.
1600 if (*addr_mode & LPFC_FCF_FPMA)
1601 *addr_mode = LPFC_FCF_FPMA;
1603 /* If FCF record report a vlan id use that vlan id */
1605 *vlan_id = fcf_vlan_id;
1607 *vlan_id = LPFC_FCOE_NULL_VID;
1611 list_for_each_entry(conn_entry,
1612 &phba->fcf_conn_rec_list, list) {
1613 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1616 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1617 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
1620 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1621 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1624 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1626 * If the vlan bit map does not have the bit set for the
1627 * vlan id to be used, then it is not a match.
1629 if (!(new_fcf_record->vlan_bitmap
1630 [conn_entry->conn_rec.vlan_tag / 8] &
1631 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1636 * If connection record does not support any addressing mode,
1637 * skip the FCF record.
1639 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1640 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1644 * Check if the connection record specifies a required
1647 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1648 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1651 * If SPMA required but FCF not support this continue.
1653 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1654 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1655 new_fcf_record) & LPFC_FCF_SPMA))
1659 * If FPMA required but FCF not support this continue.
1661 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1662 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1663 new_fcf_record) & LPFC_FCF_FPMA))
1668 * This fcf record matches filtering criteria.
1670 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1676 * If user did not specify any addressing mode, or if the
1677 * preferred addressing mode specified by user is not supported
1678 * by FCF, allow fabric to pick the addressing mode.
1680 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1683 * If the user specified a required address mode, assign that
1686 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1687 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1688 *addr_mode = (conn_entry->conn_rec.flags &
1690 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1692 * If the user specified a preferred address mode, use the
1693 * addr mode only if FCF support the addr_mode.
1695 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1696 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1697 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1698 (*addr_mode & LPFC_FCF_SPMA))
1699 *addr_mode = LPFC_FCF_SPMA;
1700 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1701 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1702 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1703 (*addr_mode & LPFC_FCF_FPMA))
1704 *addr_mode = LPFC_FCF_FPMA;
1706 /* If matching connect list has a vlan id, use it */
1707 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1708 *vlan_id = conn_entry->conn_rec.vlan_tag;
1710 * If no vlan id is specified in connect list, use the vlan id
1713 else if (fcf_vlan_id)
1714 *vlan_id = fcf_vlan_id;
1716 *vlan_id = LPFC_FCOE_NULL_VID;
1725 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1726 * @phba: pointer to lpfc hba data structure.
1727 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1729 * This function check if there is any fcoe event pending while driver
1730 * scan FCF entries. If there is any pending event, it will restart the
1731 * FCF saning and return 1 else return 0.
1734 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1737 * If the Link is up and no FCoE events while in the
1738 * FCF discovery, no need to restart FCF discovery.
1740 if ((phba->link_state >= LPFC_LINK_UP) &&
1741 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
1744 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1745 "2768 Pending link or FCF event during current "
1746 "handling of the previous event: link_state:x%x, "
1747 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1748 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
1749 phba->fcoe_eventtag);
1751 spin_lock_irq(&phba->hbalock);
1752 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1753 spin_unlock_irq(&phba->hbalock);
1755 if (phba->link_state >= LPFC_LINK_UP) {
1756 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1757 "2780 Restart FCF table scan due to "
1758 "pending FCF event:evt_tag_at_scan:x%x, "
1759 "evt_tag_current:x%x\n",
1760 phba->fcoe_eventtag_at_fcf_scan,
1761 phba->fcoe_eventtag);
1762 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
1765 * Do not continue FCF discovery and clear FCF_TS_INPROG
1768 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1769 "2833 Stop FCF discovery process due to link "
1770 "state change (x%x)\n", phba->link_state);
1771 spin_lock_irq(&phba->hbalock);
1772 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1773 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
1774 spin_unlock_irq(&phba->hbalock);
1777 /* Unregister the currently registered FCF if required */
1779 spin_lock_irq(&phba->hbalock);
1780 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1781 spin_unlock_irq(&phba->hbalock);
1782 lpfc_sli4_unregister_fcf(phba);
1788 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1789 * @phba: pointer to lpfc hba data structure.
1790 * @fcf_cnt: number of eligible fcf record seen so far.
1792 * This function makes an running random selection decision on FCF record to
1793 * use through a sequence of @fcf_cnt eligible FCF records with equal
1794 * probability. To perform integer manunipulation of random numbers with
1795 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1796 * from prandom_u32() are taken as the random random number generated.
1798 * Returns true when outcome is for the newly read FCF record should be
1799 * chosen; otherwise, return false when outcome is for keeping the previously
1800 * chosen FCF record.
1803 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
1807 /* Get 16-bit uniform random number */
1808 rand_num = 0xFFFF & prandom_u32();
1810 /* Decision with probability 1/fcf_cnt */
1811 if ((fcf_cnt * rand_num) < 0xFFFF)
1818 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
1819 * @phba: pointer to lpfc hba data structure.
1820 * @mboxq: pointer to mailbox object.
1821 * @next_fcf_index: pointer to holder of next fcf index.
1823 * This routine parses the non-embedded fcf mailbox command by performing the
1824 * necessarily error checking, non-embedded read FCF record mailbox command
1825 * SGE parsing, and endianness swapping.
1827 * Returns the pointer to the new FCF record in the non-embedded mailbox
1828 * command DMA memory if successfully, other NULL.
1830 static struct fcf_record *
1831 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
1832 uint16_t *next_fcf_index)
1835 struct lpfc_mbx_sge sge;
1836 struct lpfc_mbx_read_fcf_tbl *read_fcf;
1837 uint32_t shdr_status, shdr_add_status, if_type;
1838 union lpfc_sli4_cfg_shdr *shdr;
1839 struct fcf_record *new_fcf_record;
1841 /* Get the first SGE entry from the non-embedded DMA memory. This
1842 * routine only uses a single SGE.
1844 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1845 if (unlikely(!mboxq->sge_array)) {
1846 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1847 "2524 Failed to get the non-embedded SGE "
1848 "virtual address\n");
1851 virt_addr = mboxq->sge_array->addr[0];
1853 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
1854 lpfc_sli_pcimem_bcopy(shdr, shdr,
1855 sizeof(union lpfc_sli4_cfg_shdr));
1856 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
1857 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1858 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
1859 if (shdr_status || shdr_add_status) {
1860 if (shdr_status == STATUS_FCF_TABLE_EMPTY ||
1861 if_type == LPFC_SLI_INTF_IF_TYPE_2)
1862 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1863 "2726 READ_FCF_RECORD Indicates empty "
1866 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1867 "2521 READ_FCF_RECORD mailbox failed "
1868 "with status x%x add_status x%x, "
1869 "mbx\n", shdr_status, shdr_add_status);
1873 /* Interpreting the returned information of the FCF record */
1874 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1875 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1876 sizeof(struct lpfc_mbx_read_fcf_tbl));
1877 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
1878 new_fcf_record = (struct fcf_record *)(virt_addr +
1879 sizeof(struct lpfc_mbx_read_fcf_tbl));
1880 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
1881 offsetof(struct fcf_record, vlan_bitmap));
1882 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
1883 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
1885 return new_fcf_record;
1889 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1890 * @phba: pointer to lpfc hba data structure.
1891 * @fcf_record: pointer to the fcf record.
1892 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1893 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1895 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1899 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
1900 struct fcf_record *fcf_record,
1902 uint16_t next_fcf_index)
1904 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1905 "2764 READ_FCF_RECORD:\n"
1906 "\tFCF_Index : x%x\n"
1907 "\tFCF_Avail : x%x\n"
1908 "\tFCF_Valid : x%x\n"
1910 "\tFIP_Priority : x%x\n"
1911 "\tMAC_Provider : x%x\n"
1912 "\tLowest VLANID : x%x\n"
1913 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1914 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1915 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1916 "\tNext_FCF_Index: x%x\n",
1917 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
1918 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
1919 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
1920 bf_get(lpfc_fcf_record_fcf_sol, fcf_record),
1921 fcf_record->fip_priority,
1922 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
1924 bf_get(lpfc_fcf_record_mac_0, fcf_record),
1925 bf_get(lpfc_fcf_record_mac_1, fcf_record),
1926 bf_get(lpfc_fcf_record_mac_2, fcf_record),
1927 bf_get(lpfc_fcf_record_mac_3, fcf_record),
1928 bf_get(lpfc_fcf_record_mac_4, fcf_record),
1929 bf_get(lpfc_fcf_record_mac_5, fcf_record),
1930 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
1931 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
1932 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
1933 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
1934 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
1935 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
1936 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
1937 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
1938 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
1939 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
1940 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
1941 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
1942 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
1943 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
1944 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
1945 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
1950 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1951 * @phba: pointer to lpfc hba data structure.
1952 * @fcf_rec: pointer to an existing FCF record.
1953 * @new_fcf_record: pointer to a new FCF record.
1954 * @new_vlan_id: vlan id from the new FCF record.
1956 * This function performs matching test of a new FCF record against an existing
1957 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1958 * will not be used as part of the FCF record matching criteria.
1960 * Returns true if all the fields matching, otherwise returns false.
1963 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
1964 struct lpfc_fcf_rec *fcf_rec,
1965 struct fcf_record *new_fcf_record,
1966 uint16_t new_vlan_id)
1968 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
1969 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
1971 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
1973 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
1975 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
1977 if (fcf_rec->priority != new_fcf_record->fip_priority)
1983 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1984 * @vport: Pointer to vport object.
1985 * @fcf_index: index to next fcf.
1987 * This function processing the roundrobin fcf failover to next fcf index.
1988 * When this function is invoked, there will be a current fcf registered
1990 * Return: 0 for continue retrying flogi on currently registered fcf;
1991 * 1 for stop flogi on currently registered fcf;
1993 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
1995 struct lpfc_hba *phba = vport->phba;
1998 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
1999 spin_lock_irq(&phba->hbalock);
2000 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2001 spin_unlock_irq(&phba->hbalock);
2002 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2003 "2872 Devloss tmo with no eligible "
2004 "FCF, unregister in-use FCF (x%x) "
2005 "and rescan FCF table\n",
2006 phba->fcf.current_rec.fcf_indx);
2007 lpfc_unregister_fcf_rescan(phba);
2008 goto stop_flogi_current_fcf;
2010 /* Mark the end to FLOGI roundrobin failover */
2011 phba->hba_flag &= ~FCF_RR_INPROG;
2012 /* Allow action to new fcf asynchronous event */
2013 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2014 spin_unlock_irq(&phba->hbalock);
2015 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2016 "2865 No FCF available, stop roundrobin FCF "
2017 "failover and change port state:x%x/x%x\n",
2018 phba->pport->port_state, LPFC_VPORT_UNKNOWN);
2019 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
2021 if (!phba->fcf.fcf_redisc_attempted) {
2022 lpfc_unregister_fcf(phba);
2024 rc = lpfc_sli4_redisc_fcf_table(phba);
2026 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2027 "3195 Rediscover FCF table\n");
2028 phba->fcf.fcf_redisc_attempted = 1;
2029 lpfc_sli4_clear_fcf_rr_bmask(phba);
2031 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2032 "3196 Rediscover FCF table "
2033 "failed. Status:x%x\n", rc);
2036 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2037 "3197 Already rediscover FCF table "
2038 "attempted. No more retry\n");
2040 goto stop_flogi_current_fcf;
2042 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
2043 "2794 Try FLOGI roundrobin FCF failover to "
2044 "(x%x)\n", fcf_index);
2045 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
2047 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
2048 "2761 FLOGI roundrobin FCF failover "
2049 "failed (rc:x%x) to read FCF (x%x)\n",
2050 rc, phba->fcf.current_rec.fcf_indx);
2052 goto stop_flogi_current_fcf;
2056 stop_flogi_current_fcf:
2057 lpfc_can_disctmo(vport);
2062 * lpfc_sli4_fcf_pri_list_del
2063 * @phba: pointer to lpfc hba data structure.
2064 * @fcf_index the index of the fcf record to delete
2065 * This routine checks the on list flag of the fcf_index to be deleted.
2066 * If it is one the list then it is removed from the list, and the flag
2067 * is cleared. This routine grab the hbalock before removing the fcf
2068 * record from the list.
2070 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
2073 struct lpfc_fcf_pri *new_fcf_pri;
2075 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2076 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2077 "3058 deleting idx x%x pri x%x flg x%x\n",
2078 fcf_index, new_fcf_pri->fcf_rec.priority,
2079 new_fcf_pri->fcf_rec.flag);
2080 spin_lock_irq(&phba->hbalock);
2081 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
2082 if (phba->fcf.current_rec.priority ==
2083 new_fcf_pri->fcf_rec.priority)
2084 phba->fcf.eligible_fcf_cnt--;
2085 list_del_init(&new_fcf_pri->list);
2086 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
2088 spin_unlock_irq(&phba->hbalock);
2092 * lpfc_sli4_set_fcf_flogi_fail
2093 * @phba: pointer to lpfc hba data structure.
2094 * @fcf_index the index of the fcf record to update
2095 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2096 * flag so the the round robin slection for the particular priority level
2097 * will try a different fcf record that does not have this bit set.
2098 * If the fcf record is re-read for any reason this flag is cleared brfore
2099 * adding it to the priority list.
2102 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
2104 struct lpfc_fcf_pri *new_fcf_pri;
2105 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2106 spin_lock_irq(&phba->hbalock);
2107 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
2108 spin_unlock_irq(&phba->hbalock);
2112 * lpfc_sli4_fcf_pri_list_add
2113 * @phba: pointer to lpfc hba data structure.
2114 * @fcf_index the index of the fcf record to add
2115 * This routine checks the priority of the fcf_index to be added.
2116 * If it is a lower priority than the current head of the fcf_pri list
2117 * then it is added to the list in the right order.
2118 * If it is the same priority as the current head of the list then it
2119 * is added to the head of the list and its bit in the rr_bmask is set.
2120 * If the fcf_index to be added is of a higher priority than the current
2121 * head of the list then the rr_bmask is cleared, its bit is set in the
2122 * rr_bmask and it is added to the head of the list.
2124 * 0=success 1=failure
2126 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba,
2128 struct fcf_record *new_fcf_record)
2130 uint16_t current_fcf_pri;
2131 uint16_t last_index;
2132 struct lpfc_fcf_pri *fcf_pri;
2133 struct lpfc_fcf_pri *next_fcf_pri;
2134 struct lpfc_fcf_pri *new_fcf_pri;
2137 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2138 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2139 "3059 adding idx x%x pri x%x flg x%x\n",
2140 fcf_index, new_fcf_record->fip_priority,
2141 new_fcf_pri->fcf_rec.flag);
2142 spin_lock_irq(&phba->hbalock);
2143 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
2144 list_del_init(&new_fcf_pri->list);
2145 new_fcf_pri->fcf_rec.fcf_index = fcf_index;
2146 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
2147 if (list_empty(&phba->fcf.fcf_pri_list)) {
2148 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2149 ret = lpfc_sli4_fcf_rr_index_set(phba,
2150 new_fcf_pri->fcf_rec.fcf_index);
2154 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
2155 LPFC_SLI4_FCF_TBL_INDX_MAX);
2156 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
2157 ret = 0; /* Empty rr list */
2160 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
2161 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
2162 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2163 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
2164 memset(phba->fcf.fcf_rr_bmask, 0,
2165 sizeof(*phba->fcf.fcf_rr_bmask));
2166 /* fcfs_at_this_priority_level = 1; */
2167 phba->fcf.eligible_fcf_cnt = 1;
2169 /* fcfs_at_this_priority_level++; */
2170 phba->fcf.eligible_fcf_cnt++;
2171 ret = lpfc_sli4_fcf_rr_index_set(phba,
2172 new_fcf_pri->fcf_rec.fcf_index);
2176 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
2177 &phba->fcf.fcf_pri_list, list) {
2178 if (new_fcf_pri->fcf_rec.priority <=
2179 fcf_pri->fcf_rec.priority) {
2180 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
2181 list_add(&new_fcf_pri->list,
2182 &phba->fcf.fcf_pri_list);
2184 list_add(&new_fcf_pri->list,
2185 &((struct lpfc_fcf_pri *)
2186 fcf_pri->list.prev)->list);
2189 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
2190 || new_fcf_pri->fcf_rec.priority <
2191 next_fcf_pri->fcf_rec.priority) {
2192 list_add(&new_fcf_pri->list, &fcf_pri->list);
2196 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
2202 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2203 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
2204 spin_unlock_irq(&phba->hbalock);
2209 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2210 * @phba: pointer to lpfc hba data structure.
2211 * @mboxq: pointer to mailbox object.
2213 * This function iterates through all the fcf records available in
2214 * HBA and chooses the optimal FCF record for discovery. After finding
2215 * the FCF for discovery it registers the FCF record and kicks start
2217 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2218 * use an FCF record which matches fabric name and mac address of the
2219 * currently used FCF record.
2220 * If the driver supports only one FCF, it will try to use the FCF record
2221 * used by BOOT_BIOS.
2224 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2226 struct fcf_record *new_fcf_record;
2227 uint32_t boot_flag, addr_mode;
2228 uint16_t fcf_index, next_fcf_index;
2229 struct lpfc_fcf_rec *fcf_rec = NULL;
2230 uint16_t vlan_id = LPFC_FCOE_NULL_VID;
2231 bool select_new_fcf;
2234 /* If there is pending FCoE event restart FCF table scan */
2235 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
2236 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2240 /* Parse the FCF record from the non-embedded mailbox command */
2241 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2243 if (!new_fcf_record) {
2244 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2245 "2765 Mailbox command READ_FCF_RECORD "
2246 "failed to retrieve a FCF record.\n");
2247 /* Let next new FCF event trigger fast failover */
2248 spin_lock_irq(&phba->hbalock);
2249 phba->hba_flag &= ~FCF_TS_INPROG;
2250 spin_unlock_irq(&phba->hbalock);
2251 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2255 /* Check the FCF record against the connection list */
2256 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2257 &addr_mode, &vlan_id);
2259 /* Log the FCF record information if turned on */
2260 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2264 * If the fcf record does not match with connect list entries
2265 * read the next entry; otherwise, this is an eligible FCF
2266 * record for roundrobin FCF failover.
2269 lpfc_sli4_fcf_pri_list_del(phba,
2270 bf_get(lpfc_fcf_record_fcf_index,
2272 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2273 "2781 FCF (x%x) failed connection "
2274 "list check: (x%x/x%x/%x)\n",
2275 bf_get(lpfc_fcf_record_fcf_index,
2277 bf_get(lpfc_fcf_record_fcf_avail,
2279 bf_get(lpfc_fcf_record_fcf_valid,
2281 bf_get(lpfc_fcf_record_fcf_sol,
2283 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
2284 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2285 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
2286 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
2287 phba->fcf.current_rec.fcf_indx) {
2288 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2289 "2862 FCF (x%x) matches property "
2290 "of in-use FCF (x%x)\n",
2291 bf_get(lpfc_fcf_record_fcf_index,
2293 phba->fcf.current_rec.fcf_indx);
2297 * In case the current in-use FCF record becomes
2298 * invalid/unavailable during FCF discovery that
2299 * was not triggered by fast FCF failover process,
2300 * treat it as fast FCF failover.
2302 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
2303 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2304 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2305 "2835 Invalid in-use FCF "
2306 "(x%x), enter FCF failover "
2308 phba->fcf.current_rec.fcf_indx);
2309 spin_lock_irq(&phba->hbalock);
2310 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2311 spin_unlock_irq(&phba->hbalock);
2312 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2313 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2314 LPFC_FCOE_FCF_GET_FIRST);
2320 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2321 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
2328 * If this is not the first FCF discovery of the HBA, use last
2329 * FCF record for the discovery. The condition that a rescan
2330 * matches the in-use FCF record: fabric name, switch name, mac
2331 * address, and vlan_id.
2333 spin_lock_irq(&phba->hbalock);
2334 if (phba->fcf.fcf_flag & FCF_IN_USE) {
2335 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2336 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2337 new_fcf_record, vlan_id)) {
2338 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
2339 phba->fcf.current_rec.fcf_indx) {
2340 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2341 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
2342 /* Stop FCF redisc wait timer */
2343 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2345 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2346 /* Fast failover, mark completed */
2347 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2348 spin_unlock_irq(&phba->hbalock);
2349 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2350 "2836 New FCF matches in-use "
2351 "FCF (x%x), port_state:x%x, "
2353 phba->fcf.current_rec.fcf_indx,
2354 phba->pport->port_state,
2355 phba->pport->fc_flag);
2358 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2359 "2863 New FCF (x%x) matches "
2360 "property of in-use FCF (x%x)\n",
2361 bf_get(lpfc_fcf_record_fcf_index,
2363 phba->fcf.current_rec.fcf_indx);
2366 * Read next FCF record from HBA searching for the matching
2367 * with in-use record only if not during the fast failover
2368 * period. In case of fast failover period, it shall try to
2369 * determine whether the FCF record just read should be the
2372 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2373 spin_unlock_irq(&phba->hbalock);
2378 * Update on failover FCF record only if it's in FCF fast-failover
2379 * period; otherwise, update on current FCF record.
2381 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2382 fcf_rec = &phba->fcf.failover_rec;
2384 fcf_rec = &phba->fcf.current_rec;
2386 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
2388 * If the driver FCF record does not have boot flag
2389 * set and new hba fcf record has boot flag set, use
2390 * the new hba fcf record.
2392 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
2393 /* Choose this FCF record */
2394 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2395 "2837 Update current FCF record "
2396 "(x%x) with new FCF record (x%x)\n",
2398 bf_get(lpfc_fcf_record_fcf_index,
2400 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2401 addr_mode, vlan_id, BOOT_ENABLE);
2402 spin_unlock_irq(&phba->hbalock);
2406 * If the driver FCF record has boot flag set and the
2407 * new hba FCF record does not have boot flag, read
2408 * the next FCF record.
2410 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
2411 spin_unlock_irq(&phba->hbalock);
2415 * If the new hba FCF record has lower priority value
2416 * than the driver FCF record, use the new record.
2418 if (new_fcf_record->fip_priority < fcf_rec->priority) {
2419 /* Choose the new FCF record with lower priority */
2420 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2421 "2838 Update current FCF record "
2422 "(x%x) with new FCF record (x%x)\n",
2424 bf_get(lpfc_fcf_record_fcf_index,
2426 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2427 addr_mode, vlan_id, 0);
2428 /* Reset running random FCF selection count */
2429 phba->fcf.eligible_fcf_cnt = 1;
2430 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
2431 /* Update running random FCF selection count */
2432 phba->fcf.eligible_fcf_cnt++;
2433 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
2434 phba->fcf.eligible_fcf_cnt);
2435 if (select_new_fcf) {
2436 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2437 "2839 Update current FCF record "
2438 "(x%x) with new FCF record (x%x)\n",
2440 bf_get(lpfc_fcf_record_fcf_index,
2442 /* Choose the new FCF by random selection */
2443 __lpfc_update_fcf_record(phba, fcf_rec,
2445 addr_mode, vlan_id, 0);
2448 spin_unlock_irq(&phba->hbalock);
2452 * This is the first suitable FCF record, choose this record for
2453 * initial best-fit FCF.
2456 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2457 "2840 Update initial FCF candidate "
2459 bf_get(lpfc_fcf_record_fcf_index,
2461 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2462 addr_mode, vlan_id, (boot_flag ?
2464 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2465 /* Setup initial running random FCF selection count */
2466 phba->fcf.eligible_fcf_cnt = 1;
2468 spin_unlock_irq(&phba->hbalock);
2472 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2473 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
2474 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
2476 * Case of FCF fast failover scan
2480 * It has not found any suitable FCF record, cancel
2481 * FCF scan inprogress, and do nothing
2483 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
2484 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2485 "2782 No suitable FCF found: "
2487 phba->fcoe_eventtag_at_fcf_scan,
2488 bf_get(lpfc_fcf_record_fcf_index,
2490 spin_lock_irq(&phba->hbalock);
2491 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2492 phba->hba_flag &= ~FCF_TS_INPROG;
2493 spin_unlock_irq(&phba->hbalock);
2494 /* Unregister in-use FCF and rescan */
2495 lpfc_printf_log(phba, KERN_INFO,
2497 "2864 On devloss tmo "
2498 "unreg in-use FCF and "
2499 "rescan FCF table\n");
2500 lpfc_unregister_fcf_rescan(phba);
2504 * Let next new FCF event trigger fast failover
2506 phba->hba_flag &= ~FCF_TS_INPROG;
2507 spin_unlock_irq(&phba->hbalock);
2511 * It has found a suitable FCF record that is not
2512 * the same as in-use FCF record, unregister the
2513 * in-use FCF record, replace the in-use FCF record
2514 * with the new FCF record, mark FCF fast failover
2515 * completed, and then start register the new FCF
2519 /* Unregister the current in-use FCF record */
2520 lpfc_unregister_fcf(phba);
2522 /* Replace in-use record with the new record */
2523 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2524 "2842 Replace in-use FCF (x%x) "
2525 "with failover FCF (x%x)\n",
2526 phba->fcf.current_rec.fcf_indx,
2527 phba->fcf.failover_rec.fcf_indx);
2528 memcpy(&phba->fcf.current_rec,
2529 &phba->fcf.failover_rec,
2530 sizeof(struct lpfc_fcf_rec));
2532 * Mark the fast FCF failover rediscovery completed
2533 * and the start of the first round of the roundrobin
2536 spin_lock_irq(&phba->hbalock);
2537 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2538 spin_unlock_irq(&phba->hbalock);
2539 /* Register to the new FCF record */
2540 lpfc_register_fcf(phba);
2543 * In case of transaction period to fast FCF failover,
2544 * do nothing when search to the end of the FCF table.
2546 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
2547 (phba->fcf.fcf_flag & FCF_REDISC_PEND))
2550 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2551 phba->fcf.fcf_flag & FCF_IN_USE) {
2553 * In case the current in-use FCF record no
2554 * longer existed during FCF discovery that
2555 * was not triggered by fast FCF failover
2556 * process, treat it as fast FCF failover.
2558 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2559 "2841 In-use FCF record (x%x) "
2560 "not reported, entering fast "
2561 "FCF failover mode scanning.\n",
2562 phba->fcf.current_rec.fcf_indx);
2563 spin_lock_irq(&phba->hbalock);
2564 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2565 spin_unlock_irq(&phba->hbalock);
2566 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2567 LPFC_FCOE_FCF_GET_FIRST);
2570 /* Register to the new FCF record */
2571 lpfc_register_fcf(phba);
2574 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
2578 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2579 lpfc_register_fcf(phba);
2585 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2586 * @phba: pointer to lpfc hba data structure.
2587 * @mboxq: pointer to mailbox object.
2589 * This is the callback function for FLOGI failure roundrobin FCF failover
2590 * read FCF record mailbox command from the eligible FCF record bmask for
2591 * performing the failover. If the FCF read back is not valid/available, it
2592 * fails through to retrying FLOGI to the currently registered FCF again.
2593 * Otherwise, if the FCF read back is valid and available, it will set the
2594 * newly read FCF record to the failover FCF record, unregister currently
2595 * registered FCF record, copy the failover FCF record to the current
2596 * FCF record, and then register the current FCF record before proceeding
2597 * to trying FLOGI on the new failover FCF.
2600 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2602 struct fcf_record *new_fcf_record;
2603 uint32_t boot_flag, addr_mode;
2604 uint16_t next_fcf_index, fcf_index;
2605 uint16_t current_fcf_index;
2609 /* If link state is not up, stop the roundrobin failover process */
2610 if (phba->link_state < LPFC_LINK_UP) {
2611 spin_lock_irq(&phba->hbalock);
2612 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
2613 phba->hba_flag &= ~FCF_RR_INPROG;
2614 spin_unlock_irq(&phba->hbalock);
2618 /* Parse the FCF record from the non-embedded mailbox command */
2619 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2621 if (!new_fcf_record) {
2622 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2623 "2766 Mailbox command READ_FCF_RECORD "
2624 "failed to retrieve a FCF record. "
2625 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag,
2626 phba->fcf.fcf_flag);
2627 lpfc_unregister_fcf_rescan(phba);
2631 /* Get the needed parameters from FCF record */
2632 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2633 &addr_mode, &vlan_id);
2635 /* Log the FCF record information if turned on */
2636 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2639 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2641 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2642 "2848 Remove ineligible FCF (x%x) from "
2643 "from roundrobin bmask\n", fcf_index);
2644 /* Clear roundrobin bmask bit for ineligible FCF */
2645 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
2646 /* Perform next round of roundrobin FCF failover */
2647 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
2648 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
2654 if (fcf_index == phba->fcf.current_rec.fcf_indx) {
2655 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2656 "2760 Perform FLOGI roundrobin FCF failover: "
2657 "FCF (x%x) back to FCF (x%x)\n",
2658 phba->fcf.current_rec.fcf_indx, fcf_index);
2659 /* Wait 500 ms before retrying FLOGI to current FCF */
2661 lpfc_issue_init_vfi(phba->pport);
2665 /* Upload new FCF record to the failover FCF record */
2666 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2667 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2668 phba->fcf.failover_rec.fcf_indx, fcf_index);
2669 spin_lock_irq(&phba->hbalock);
2670 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2671 new_fcf_record, addr_mode, vlan_id,
2672 (boot_flag ? BOOT_ENABLE : 0));
2673 spin_unlock_irq(&phba->hbalock);
2675 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2677 /* Unregister the current in-use FCF record */
2678 lpfc_unregister_fcf(phba);
2680 /* Replace in-use record with the new record */
2681 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2682 sizeof(struct lpfc_fcf_rec));
2684 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2685 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2686 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
2689 lpfc_register_fcf(phba);
2691 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2695 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2696 * @phba: pointer to lpfc hba data structure.
2697 * @mboxq: pointer to mailbox object.
2699 * This is the callback function of read FCF record mailbox command for
2700 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
2701 * failover when a new FCF event happened. If the FCF read back is
2702 * valid/available and it passes the connection list check, it updates
2703 * the bmask for the eligible FCF record for roundrobin failover.
2706 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2708 struct fcf_record *new_fcf_record;
2709 uint32_t boot_flag, addr_mode;
2710 uint16_t fcf_index, next_fcf_index;
2714 /* If link state is not up, no need to proceed */
2715 if (phba->link_state < LPFC_LINK_UP)
2718 /* If FCF discovery period is over, no need to proceed */
2719 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
2722 /* Parse the FCF record from the non-embedded mailbox command */
2723 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2725 if (!new_fcf_record) {
2726 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2727 "2767 Mailbox command READ_FCF_RECORD "
2728 "failed to retrieve a FCF record.\n");
2732 /* Check the connection list for eligibility */
2733 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2734 &addr_mode, &vlan_id);
2736 /* Log the FCF record information if turned on */
2737 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2743 /* Update the eligible FCF record index bmask */
2744 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2746 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
2749 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2753 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2754 * @phba: pointer to lpfc hba data structure.
2755 * @mboxq: pointer to mailbox data structure.
2757 * This function handles completion of init vfi mailbox command.
2760 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2762 struct lpfc_vport *vport = mboxq->vport;
2765 * VFI not supported on interface type 0, just do the flogi
2766 * Also continue if the VFI is in use - just use the same one.
2768 if (mboxq->u.mb.mbxStatus &&
2769 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2770 LPFC_SLI_INTF_IF_TYPE_0) &&
2771 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2772 lpfc_printf_vlog(vport, KERN_ERR,
2774 "2891 Init VFI mailbox failed 0x%x\n",
2775 mboxq->u.mb.mbxStatus);
2776 mempool_free(mboxq, phba->mbox_mem_pool);
2777 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2781 lpfc_initial_flogi(vport);
2782 mempool_free(mboxq, phba->mbox_mem_pool);
2787 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2788 * @vport: pointer to lpfc_vport data structure.
2790 * This function issue a init_vfi mailbox command to initialize the VFI and
2791 * VPI for the physical port.
2794 lpfc_issue_init_vfi(struct lpfc_vport *vport)
2796 LPFC_MBOXQ_t *mboxq;
2798 struct lpfc_hba *phba = vport->phba;
2800 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2802 lpfc_printf_vlog(vport, KERN_ERR,
2803 LOG_MBOX, "2892 Failed to allocate "
2804 "init_vfi mailbox\n");
2807 lpfc_init_vfi(mboxq, vport);
2808 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
2809 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
2810 if (rc == MBX_NOT_FINISHED) {
2811 lpfc_printf_vlog(vport, KERN_ERR,
2812 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n");
2813 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2818 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2819 * @phba: pointer to lpfc hba data structure.
2820 * @mboxq: pointer to mailbox data structure.
2822 * This function handles completion of init vpi mailbox command.
2825 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2827 struct lpfc_vport *vport = mboxq->vport;
2828 struct lpfc_nodelist *ndlp;
2829 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2831 if (mboxq->u.mb.mbxStatus) {
2832 lpfc_printf_vlog(vport, KERN_ERR,
2834 "2609 Init VPI mailbox failed 0x%x\n",
2835 mboxq->u.mb.mbxStatus);
2836 mempool_free(mboxq, phba->mbox_mem_pool);
2837 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2840 spin_lock_irq(shost->host_lock);
2841 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
2842 spin_unlock_irq(shost->host_lock);
2844 /* If this port is physical port or FDISC is done, do reg_vpi */
2845 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
2846 ndlp = lpfc_findnode_did(vport, Fabric_DID);
2848 lpfc_printf_vlog(vport, KERN_ERR,
2850 "2731 Cannot find fabric "
2851 "controller node\n");
2853 lpfc_register_new_vport(phba, vport, ndlp);
2854 mempool_free(mboxq, phba->mbox_mem_pool);
2858 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2859 lpfc_initial_fdisc(vport);
2861 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
2862 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2863 "2606 No NPIV Fabric support\n");
2865 mempool_free(mboxq, phba->mbox_mem_pool);
2870 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2871 * @vport: pointer to lpfc_vport data structure.
2873 * This function issue a init_vpi mailbox command to initialize
2874 * VPI for the vport.
2877 lpfc_issue_init_vpi(struct lpfc_vport *vport)
2879 LPFC_MBOXQ_t *mboxq;
2882 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {
2883 vpi = lpfc_alloc_vpi(vport->phba);
2885 lpfc_printf_vlog(vport, KERN_ERR,
2887 "3303 Failed to obtain vport vpi\n");
2888 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2894 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
2896 lpfc_printf_vlog(vport, KERN_ERR,
2897 LOG_MBOX, "2607 Failed to allocate "
2898 "init_vpi mailbox\n");
2901 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
2902 mboxq->vport = vport;
2903 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
2904 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
2905 if (rc == MBX_NOT_FINISHED) {
2906 lpfc_printf_vlog(vport, KERN_ERR,
2907 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
2908 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2913 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2914 * @phba: pointer to lpfc hba data structure.
2916 * This function loops through the list of vports on the @phba and issues an
2917 * FDISC if possible.
2920 lpfc_start_fdiscs(struct lpfc_hba *phba)
2922 struct lpfc_vport **vports;
2925 vports = lpfc_create_vport_work_array(phba);
2926 if (vports != NULL) {
2927 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2928 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
2930 /* There are no vpi for this vport */
2931 if (vports[i]->vpi > phba->max_vpi) {
2932 lpfc_vport_set_state(vports[i],
2936 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2937 lpfc_vport_set_state(vports[i],
2941 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
2942 lpfc_issue_init_vpi(vports[i]);
2945 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2946 lpfc_initial_fdisc(vports[i]);
2948 lpfc_vport_set_state(vports[i],
2949 FC_VPORT_NO_FABRIC_SUPP);
2950 lpfc_printf_vlog(vports[i], KERN_ERR,
2953 "Fabric support\n");
2957 lpfc_destroy_vport_work_array(phba, vports);
2961 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2963 struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf;
2964 struct lpfc_vport *vport = mboxq->vport;
2965 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2968 * VFI not supported for interface type 0, so ignore any mailbox
2969 * error (except VFI in use) and continue with the discovery.
2971 if (mboxq->u.mb.mbxStatus &&
2972 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2973 LPFC_SLI_INTF_IF_TYPE_0) &&
2974 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2975 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2976 "2018 REG_VFI mbxStatus error x%x "
2978 mboxq->u.mb.mbxStatus, vport->port_state);
2979 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2980 /* FLOGI failed, use loop map to make discovery list */
2981 lpfc_disc_list_loopmap(vport);
2982 /* Start discovery */
2983 lpfc_disc_start(vport);
2986 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2990 /* If the VFI is already registered, there is nothing else to do
2991 * Unless this was a VFI update and we are in PT2PT mode, then
2992 * we should drop through to set the port state to ready.
2994 if (vport->fc_flag & FC_VFI_REGISTERED)
2995 if (!(phba->sli_rev == LPFC_SLI_REV4 &&
2996 vport->fc_flag & FC_PT2PT))
2999 /* The VPI is implicitly registered when the VFI is registered */
3000 spin_lock_irq(shost->host_lock);
3001 vport->vpi_state |= LPFC_VPI_REGISTERED;
3002 vport->fc_flag |= FC_VFI_REGISTERED;
3003 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
3004 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
3005 spin_unlock_irq(shost->host_lock);
3007 /* In case SLI4 FC loopback test, we are ready */
3008 if ((phba->sli_rev == LPFC_SLI_REV4) &&
3009 (phba->link_flag & LS_LOOPBACK_MODE)) {
3010 phba->link_state = LPFC_HBA_READY;
3014 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3015 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
3016 "alpacnt:%d LinkState:%x topology:%x\n",
3017 vport->port_state, vport->fc_flag, vport->fc_myDID,
3018 vport->phba->alpa_map[0],
3019 phba->link_state, phba->fc_topology);
3021 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3023 * For private loop or for NPort pt2pt,
3024 * just start discovery and we are done.
3026 if ((vport->fc_flag & FC_PT2PT) ||
3027 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
3028 !(vport->fc_flag & FC_PUBLIC_LOOP))) {
3030 /* Use loop map to make discovery list */
3031 lpfc_disc_list_loopmap(vport);
3032 /* Start discovery */
3033 if (vport->fc_flag & FC_PT2PT)
3034 vport->port_state = LPFC_VPORT_READY;
3036 lpfc_disc_start(vport);
3038 lpfc_start_fdiscs(phba);
3039 lpfc_do_scr_ns_plogi(phba, vport);
3044 mempool_free(mboxq, phba->mbox_mem_pool);
3046 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
3053 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3055 MAILBOX_t *mb = &pmb->u.mb;
3056 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
3057 struct lpfc_vport *vport = pmb->vport;
3058 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3059 struct serv_parm *sp = &vport->fc_sparam;
3062 /* Check for error */
3063 if (mb->mbxStatus) {
3064 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
3065 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3066 "0319 READ_SPARAM mbxStatus error x%x "
3068 mb->mbxStatus, vport->port_state);
3069 lpfc_linkdown(phba);
3073 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
3074 sizeof (struct serv_parm));
3076 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
3077 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
3078 ed_tov = (ed_tov + 999999) / 1000000;
3080 phba->fc_edtov = ed_tov;
3081 phba->fc_ratov = (2 * ed_tov) / 1000;
3082 if (phba->fc_ratov < FF_DEF_RATOV) {
3083 /* RA_TOV should be atleast 10sec for initial flogi */
3084 phba->fc_ratov = FF_DEF_RATOV;
3087 lpfc_update_vport_wwn(vport);
3088 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3089 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3090 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
3091 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
3094 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3096 mempool_free(pmb, phba->mbox_mem_pool);
3100 pmb->ctx_buf = NULL;
3101 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3103 lpfc_issue_clear_la(phba, vport);
3104 mempool_free(pmb, phba->mbox_mem_pool);
3109 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
3111 struct lpfc_vport *vport = phba->pport;
3112 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
3113 struct Scsi_Host *shost;
3115 struct lpfc_dmabuf *mp;
3117 struct fcf_record *fcf_record;
3118 uint32_t fc_flags = 0;
3120 spin_lock_irq(&phba->hbalock);
3121 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
3123 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3124 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
3125 case LPFC_LINK_SPEED_1GHZ:
3126 case LPFC_LINK_SPEED_2GHZ:
3127 case LPFC_LINK_SPEED_4GHZ:
3128 case LPFC_LINK_SPEED_8GHZ:
3129 case LPFC_LINK_SPEED_10GHZ:
3130 case LPFC_LINK_SPEED_16GHZ:
3131 case LPFC_LINK_SPEED_32GHZ:
3132 case LPFC_LINK_SPEED_64GHZ:
3133 case LPFC_LINK_SPEED_128GHZ:
3136 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
3141 if (phba->fc_topology &&
3142 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {
3143 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3144 "3314 Toplogy changed was 0x%x is 0x%x\n",
3146 bf_get(lpfc_mbx_read_top_topology, la));
3147 phba->fc_topology_changed = 1;
3150 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
3151 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
3153 shost = lpfc_shost_from_vport(vport);
3154 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3155 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
3157 /* if npiv is enabled and this adapter supports npiv log
3158 * a message that npiv is not supported in this topology
3160 if (phba->cfg_enable_npiv && phba->max_vpi)
3161 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3162 "1309 Link Up Event npiv not supported in loop "
3164 /* Get Loop Map information */
3165 if (bf_get(lpfc_mbx_read_top_il, la))
3166 fc_flags |= FC_LBIT;
3168 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
3169 i = la->lilpBde64.tus.f.bdeSize;
3172 phba->alpa_map[0] = 0;
3174 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
3185 numalpa = phba->alpa_map[0];
3187 while (j < numalpa) {
3188 memset(un.pamap, 0, 16);
3189 for (k = 1; j < numalpa; k++) {
3191 phba->alpa_map[j + 1];
3196 /* Link Up Event ALPA map */
3197 lpfc_printf_log(phba,
3200 "1304 Link Up Event "
3201 "ALPA map Data: x%x "
3203 un.pa.wd1, un.pa.wd2,
3204 un.pa.wd3, un.pa.wd4);
3209 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
3210 if (phba->max_vpi && phba->cfg_enable_npiv &&
3211 (phba->sli_rev >= LPFC_SLI_REV3))
3212 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3214 vport->fc_myDID = phba->fc_pref_DID;
3215 fc_flags |= FC_LBIT;
3217 spin_unlock_irq(&phba->hbalock);
3220 spin_lock_irq(shost->host_lock);
3221 vport->fc_flag |= fc_flags;
3222 spin_unlock_irq(shost->host_lock);
3226 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3230 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
3232 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3235 sparam_mbox->vport = vport;
3236 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
3237 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
3238 if (rc == MBX_NOT_FINISHED) {
3239 mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf;
3240 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3242 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3246 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3247 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3250 vport->port_state = LPFC_LOCAL_CFG_LINK;
3251 lpfc_config_link(phba, cfglink_mbox);
3252 cfglink_mbox->vport = vport;
3253 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
3254 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
3255 if (rc == MBX_NOT_FINISHED) {
3256 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
3260 vport->port_state = LPFC_VPORT_UNKNOWN;
3262 * Add the driver's default FCF record at FCF index 0 now. This
3263 * is phase 1 implementation that support FCF index 0 and driver
3266 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
3267 fcf_record = kzalloc(sizeof(struct fcf_record),
3269 if (unlikely(!fcf_record)) {
3270 lpfc_printf_log(phba, KERN_ERR,
3272 "2554 Could not allocate memory for "
3278 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
3279 LPFC_FCOE_FCF_DEF_INDEX);
3280 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
3282 lpfc_printf_log(phba, KERN_ERR,
3284 "2013 Could not manually add FCF "
3285 "record 0, status %d\n", rc);
3293 * The driver is expected to do FIP/FCF. Call the port
3294 * and get the FCF Table.
3296 spin_lock_irq(&phba->hbalock);
3297 if (phba->hba_flag & FCF_TS_INPROG) {
3298 spin_unlock_irq(&phba->hbalock);
3301 /* This is the initial FCF discovery scan */
3302 phba->fcf.fcf_flag |= FCF_INIT_DISC;
3303 spin_unlock_irq(&phba->hbalock);
3304 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3305 "2778 Start FCF table scan at linkup\n");
3306 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3307 LPFC_FCOE_FCF_GET_FIRST);
3309 spin_lock_irq(&phba->hbalock);
3310 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
3311 spin_unlock_irq(&phba->hbalock);
3314 /* Reset FCF roundrobin bmask for new discovery */
3315 lpfc_sli4_clear_fcf_rr_bmask(phba);
3320 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3321 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3322 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
3323 vport->port_state, sparam_mbox, cfglink_mbox);
3324 lpfc_issue_clear_la(phba, vport);
3329 lpfc_enable_la(struct lpfc_hba *phba)
3332 struct lpfc_sli *psli = &phba->sli;
3333 spin_lock_irq(&phba->hbalock);
3334 psli->sli_flag |= LPFC_PROCESS_LA;
3335 if (phba->sli_rev <= LPFC_SLI_REV3) {
3336 control = readl(phba->HCregaddr);
3337 control |= HC_LAINT_ENA;
3338 writel(control, phba->HCregaddr);
3339 readl(phba->HCregaddr); /* flush */
3341 spin_unlock_irq(&phba->hbalock);
3345 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
3347 lpfc_linkdown(phba);
3348 lpfc_enable_la(phba);
3349 lpfc_unregister_unused_fcf(phba);
3350 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3355 * This routine handles processing a READ_TOPOLOGY mailbox
3356 * command upon completion. It is setup in the LPFC_MBOXQ
3357 * as the completion routine when the command is
3358 * handed off to the SLI layer. SLI4 only.
3361 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3363 struct lpfc_vport *vport = pmb->vport;
3364 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3365 struct lpfc_mbx_read_top *la;
3366 struct lpfc_sli_ring *pring;
3367 MAILBOX_t *mb = &pmb->u.mb;
3368 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
3371 /* Unblock ELS traffic */
3372 pring = lpfc_phba_elsring(phba);
3374 pring->flag &= ~LPFC_STOP_IOCB_EVENT;
3376 /* Check for error */
3377 if (mb->mbxStatus) {
3378 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3379 "1307 READ_LA mbox error x%x state x%x\n",
3380 mb->mbxStatus, vport->port_state);
3381 lpfc_mbx_issue_link_down(phba);
3382 phba->link_state = LPFC_HBA_ERROR;
3383 goto lpfc_mbx_cmpl_read_topology_free_mbuf;
3386 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3387 attn_type = bf_get(lpfc_mbx_read_top_att_type, la);
3389 memcpy(&phba->alpa_map[0], mp->virt, 128);
3391 spin_lock_irq(shost->host_lock);
3392 if (bf_get(lpfc_mbx_read_top_pb, la))
3393 vport->fc_flag |= FC_BYPASSED_MODE;
3395 vport->fc_flag &= ~FC_BYPASSED_MODE;
3396 spin_unlock_irq(shost->host_lock);
3398 if (phba->fc_eventTag <= la->eventTag) {
3399 phba->fc_stat.LinkMultiEvent++;
3400 if (attn_type == LPFC_ATT_LINK_UP)
3401 if (phba->fc_eventTag != 0)
3402 lpfc_linkdown(phba);
3405 phba->fc_eventTag = la->eventTag;
3406 if (phba->sli_rev < LPFC_SLI_REV4) {
3407 spin_lock_irq(&phba->hbalock);
3408 if (bf_get(lpfc_mbx_read_top_mm, la))
3409 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
3411 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
3412 spin_unlock_irq(&phba->hbalock);
3415 phba->link_events++;
3416 if ((attn_type == LPFC_ATT_LINK_UP) &&
3417 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) {
3418 phba->fc_stat.LinkUp++;
3419 if (phba->link_flag & LS_LOOPBACK_MODE) {
3420 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3421 "1306 Link Up Event in loop back mode "
3422 "x%x received Data: x%x x%x x%x x%x\n",
3423 la->eventTag, phba->fc_eventTag,
3424 bf_get(lpfc_mbx_read_top_alpa_granted,
3426 bf_get(lpfc_mbx_read_top_link_spd, la),
3429 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3430 "1303 Link Up Event x%x received "
3431 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3432 la->eventTag, phba->fc_eventTag,
3433 bf_get(lpfc_mbx_read_top_alpa_granted,
3435 bf_get(lpfc_mbx_read_top_link_spd, la),
3437 bf_get(lpfc_mbx_read_top_mm, la),
3438 bf_get(lpfc_mbx_read_top_fa, la),
3439 phba->wait_4_mlo_maint_flg);
3441 lpfc_mbx_process_link_up(phba, la);
3442 } else if (attn_type == LPFC_ATT_LINK_DOWN ||
3443 attn_type == LPFC_ATT_UNEXP_WWPN) {
3444 phba->fc_stat.LinkDown++;
3445 if (phba->link_flag & LS_LOOPBACK_MODE)
3446 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3447 "1308 Link Down Event in loop back mode "
3449 "Data: x%x x%x x%x\n",
3450 la->eventTag, phba->fc_eventTag,
3451 phba->pport->port_state, vport->fc_flag);
3452 else if (attn_type == LPFC_ATT_UNEXP_WWPN)
3453 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3454 "1313 Link Down UNEXP WWPN Event x%x received "
3455 "Data: x%x x%x x%x x%x x%x\n",
3456 la->eventTag, phba->fc_eventTag,
3457 phba->pport->port_state, vport->fc_flag,
3458 bf_get(lpfc_mbx_read_top_mm, la),
3459 bf_get(lpfc_mbx_read_top_fa, la));
3461 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3462 "1305 Link Down Event x%x received "
3463 "Data: x%x x%x x%x x%x x%x\n",
3464 la->eventTag, phba->fc_eventTag,
3465 phba->pport->port_state, vport->fc_flag,
3466 bf_get(lpfc_mbx_read_top_mm, la),
3467 bf_get(lpfc_mbx_read_top_fa, la));
3468 lpfc_mbx_issue_link_down(phba);
3470 if (phba->sli.sli_flag & LPFC_MENLO_MAINT &&
3471 attn_type == LPFC_ATT_LINK_UP) {
3472 if (phba->link_state != LPFC_LINK_DOWN) {
3473 phba->fc_stat.LinkDown++;
3474 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3475 "1312 Link Down Event x%x received "
3476 "Data: x%x x%x x%x\n",
3477 la->eventTag, phba->fc_eventTag,
3478 phba->pport->port_state, vport->fc_flag);
3479 lpfc_mbx_issue_link_down(phba);
3481 lpfc_enable_la(phba);
3483 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3484 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3485 "Data: x%x x%x x%x\n",
3486 la->eventTag, phba->fc_eventTag,
3487 phba->pport->port_state, vport->fc_flag);
3489 * The cmnd that triggered this will be waiting for this
3492 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3493 if (phba->wait_4_mlo_maint_flg) {
3494 phba->wait_4_mlo_maint_flg = 0;
3495 wake_up_interruptible(&phba->wait_4_mlo_m_q);
3499 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3500 bf_get(lpfc_mbx_read_top_fa, la)) {
3501 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
3502 lpfc_issue_clear_la(phba, vport);
3503 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3505 bf_get(lpfc_mbx_read_top_fa, la));
3508 lpfc_mbx_cmpl_read_topology_free_mbuf:
3509 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3511 mempool_free(pmb, phba->mbox_mem_pool);
3516 * This routine handles processing a REG_LOGIN mailbox
3517 * command upon completion. It is setup in the LPFC_MBOXQ
3518 * as the completion routine when the command is
3519 * handed off to the SLI layer.
3522 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3524 struct lpfc_vport *vport = pmb->vport;
3525 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
3526 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
3527 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3529 pmb->ctx_buf = NULL;
3530 pmb->ctx_ndlp = NULL;
3532 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3533 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n",
3534 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3535 kref_read(&ndlp->kref),
3536 ndlp->nlp_usg_map, ndlp);
3537 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
3538 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3540 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
3541 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
3542 /* We rcvd a rscn after issuing this
3543 * mbox reg login, we may have cycled
3544 * back through the state and be
3545 * back at reg login state so this
3546 * mbox needs to be ignored becase
3547 * there is another reg login in
3550 spin_lock_irq(shost->host_lock);
3551 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
3552 spin_unlock_irq(shost->host_lock);
3555 * We cannot leave the RPI registered because
3556 * if we go thru discovery again for this ndlp
3557 * a subsequent REG_RPI will fail.
3559 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3560 lpfc_unreg_rpi(vport, ndlp);
3563 /* Call state machine */
3564 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
3566 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3568 mempool_free(pmb, phba->mbox_mem_pool);
3569 /* decrement the node reference count held for this callback
3578 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3580 MAILBOX_t *mb = &pmb->u.mb;
3581 struct lpfc_vport *vport = pmb->vport;
3582 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3584 switch (mb->mbxStatus) {
3587 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3588 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3591 /* If VPI is busy, reset the HBA */
3593 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3594 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3595 vport->vpi, mb->mbxStatus);
3596 if (!(phba->pport->load_flag & FC_UNLOADING))
3597 lpfc_workq_post_event(phba, NULL, NULL,
3598 LPFC_EVT_RESET_HBA);
3600 spin_lock_irq(shost->host_lock);
3601 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
3602 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3603 spin_unlock_irq(shost->host_lock);
3604 vport->unreg_vpi_cmpl = VPORT_OK;
3605 mempool_free(pmb, phba->mbox_mem_pool);
3606 lpfc_cleanup_vports_rrqs(vport, NULL);
3608 * This shost reference might have been taken at the beginning of
3609 * lpfc_vport_delete()
3611 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
3612 scsi_host_put(shost);
3616 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
3618 struct lpfc_hba *phba = vport->phba;
3622 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3626 lpfc_unreg_vpi(phba, vport->vpi, mbox);
3627 mbox->vport = vport;
3628 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
3629 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3630 if (rc == MBX_NOT_FINISHED) {
3631 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3632 "1800 Could not issue unreg_vpi\n");
3633 mempool_free(mbox, phba->mbox_mem_pool);
3634 vport->unreg_vpi_cmpl = VPORT_ERROR;
3641 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3643 struct lpfc_vport *vport = pmb->vport;
3644 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3645 MAILBOX_t *mb = &pmb->u.mb;
3647 switch (mb->mbxStatus) {
3651 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3652 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3654 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3655 spin_lock_irq(shost->host_lock);
3656 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
3657 spin_unlock_irq(shost->host_lock);
3658 vport->fc_myDID = 0;
3660 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3661 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
3662 if (phba->nvmet_support)
3663 lpfc_nvmet_update_targetport(phba);
3665 lpfc_nvme_update_localport(vport);
3670 spin_lock_irq(shost->host_lock);
3671 vport->vpi_state |= LPFC_VPI_REGISTERED;
3672 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
3673 spin_unlock_irq(shost->host_lock);
3674 vport->num_disc_nodes = 0;
3675 /* go thru NPR list and issue ELS PLOGIs */
3676 if (vport->fc_npr_cnt)
3677 lpfc_els_disc_plogi(vport);
3679 if (!vport->num_disc_nodes) {
3680 spin_lock_irq(shost->host_lock);
3681 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3682 spin_unlock_irq(shost->host_lock);
3683 lpfc_can_disctmo(vport);
3685 vport->port_state = LPFC_VPORT_READY;
3688 mempool_free(pmb, phba->mbox_mem_pool);
3693 * lpfc_create_static_vport - Read HBA config region to create static vports.
3694 * @phba: pointer to lpfc hba data structure.
3696 * This routine issue a DUMP mailbox command for config region 22 to get
3697 * the list of static vports to be created. The function create vports
3698 * based on the information returned from the HBA.
3701 lpfc_create_static_vport(struct lpfc_hba *phba)
3703 LPFC_MBOXQ_t *pmb = NULL;
3705 struct static_vport_info *vport_info;
3706 int mbx_wait_rc = 0, i;
3707 struct fc_vport_identifiers vport_id;
3708 struct fc_vport *new_fc_vport;
3709 struct Scsi_Host *shost;
3710 struct lpfc_vport *vport;
3711 uint16_t offset = 0;
3712 uint8_t *vport_buff;
3713 struct lpfc_dmabuf *mp;
3714 uint32_t byte_count = 0;
3716 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3718 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3719 "0542 lpfc_create_static_vport failed to"
3720 " allocate mailbox memory\n");
3723 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
3726 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
3728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3729 "0543 lpfc_create_static_vport failed to"
3730 " allocate vport_info\n");
3731 mempool_free(pmb, phba->mbox_mem_pool);
3735 vport_buff = (uint8_t *) vport_info;
3737 /* free dma buffer from previous round */
3739 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
3740 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3743 if (lpfc_dump_static_vport(phba, pmb, offset))
3746 pmb->vport = phba->pport;
3747 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,
3750 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {
3751 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3752 "0544 lpfc_create_static_vport failed to"
3753 " issue dump mailbox command ret 0x%x "
3755 mbx_wait_rc, mb->mbxStatus);
3759 if (phba->sli_rev == LPFC_SLI_REV4) {
3760 byte_count = pmb->u.mqe.un.mb_words[5];
3761 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
3762 if (byte_count > sizeof(struct static_vport_info) -
3764 byte_count = sizeof(struct static_vport_info)
3766 memcpy(vport_buff + offset, mp->virt, byte_count);
3767 offset += byte_count;
3769 if (mb->un.varDmp.word_cnt >
3770 sizeof(struct static_vport_info) - offset)
3771 mb->un.varDmp.word_cnt =
3772 sizeof(struct static_vport_info)
3774 byte_count = mb->un.varDmp.word_cnt;
3775 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
3776 vport_buff + offset,
3779 offset += byte_count;
3782 } while (byte_count &&
3783 offset < sizeof(struct static_vport_info));
3786 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
3787 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
3788 != VPORT_INFO_REV)) {
3789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3790 "0545 lpfc_create_static_vport bad"
3791 " information header 0x%x 0x%x\n",
3792 le32_to_cpu(vport_info->signature),
3793 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
3798 shost = lpfc_shost_from_vport(phba->pport);
3800 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
3801 memset(&vport_id, 0, sizeof(vport_id));
3802 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
3803 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
3804 if (!vport_id.port_name || !vport_id.node_name)
3807 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
3808 vport_id.vport_type = FC_PORTTYPE_NPIV;
3809 vport_id.disable = false;
3810 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
3812 if (!new_fc_vport) {
3813 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3814 "0546 lpfc_create_static_vport failed to"
3819 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
3820 vport->vport_flag |= STATIC_VPORT;
3825 if (mbx_wait_rc != MBX_TIMEOUT) {
3827 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
3828 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3831 mempool_free(pmb, phba->mbox_mem_pool);
3838 * This routine handles processing a Fabric REG_LOGIN mailbox
3839 * command upon completion. It is setup in the LPFC_MBOXQ
3840 * as the completion routine when the command is
3841 * handed off to the SLI layer.
3844 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3846 struct lpfc_vport *vport = pmb->vport;
3847 MAILBOX_t *mb = &pmb->u.mb;
3848 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
3849 struct lpfc_nodelist *ndlp;
3850 struct Scsi_Host *shost;
3852 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
3853 pmb->ctx_ndlp = NULL;
3854 pmb->ctx_buf = NULL;
3856 if (mb->mbxStatus) {
3857 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3858 "0258 Register Fabric login error: 0x%x\n",
3860 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3862 mempool_free(pmb, phba->mbox_mem_pool);
3864 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3865 /* FLOGI failed, use loop map to make discovery list */
3866 lpfc_disc_list_loopmap(vport);
3868 /* Start discovery */
3869 lpfc_disc_start(vport);
3870 /* Decrement the reference count to ndlp after the
3871 * reference to the ndlp are done.
3877 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3878 /* Decrement the reference count to ndlp after the reference
3879 * to the ndlp are done.
3885 if (phba->sli_rev < LPFC_SLI_REV4)
3886 ndlp->nlp_rpi = mb->un.varWords[0];
3887 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3888 ndlp->nlp_type |= NLP_FABRIC;
3889 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3891 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3892 /* when physical port receive logo donot start
3893 * vport discovery */
3894 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
3895 lpfc_start_fdiscs(phba);
3897 shost = lpfc_shost_from_vport(vport);
3898 spin_lock_irq(shost->host_lock);
3899 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
3900 spin_unlock_irq(shost->host_lock);
3902 lpfc_do_scr_ns_plogi(phba, vport);
3905 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3907 mempool_free(pmb, phba->mbox_mem_pool);
3909 /* Drop the reference count from the mbox at the end after
3910 * all the current reference to the ndlp have been done.
3917 * This routine will issue a GID_FT for each FC4 Type supported
3918 * by the driver. ALL GID_FTs must complete before discovery is started.
3921 lpfc_issue_gidft(struct lpfc_vport *vport)
3923 /* Good status, issue CT Request to NameServer */
3924 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3925 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) {
3926 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) {
3927 /* Cannot issue NameServer FCP Query, so finish up
3930 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
3931 "0604 %s FC TYPE %x %s\n",
3932 "Failed to issue GID_FT to ",
3934 "Finishing discovery.");
3940 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3941 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
3942 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) {
3943 /* Cannot issue NameServer NVME Query, so finish up
3946 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
3947 "0605 %s FC_TYPE %x %s %d\n",
3948 "Failed to issue GID_FT to ",
3950 "Finishing discovery: gidftinp ",
3952 if (vport->gidft_inp == 0)
3957 return vport->gidft_inp;
3961 * lpfc_issue_gidpt - issue a GID_PT for all N_Ports
3962 * @vport: The virtual port for which this call is being executed.
3964 * This routine will issue a GID_PT to get a list of all N_Ports
3967 * 0 - Failure to issue a GID_PT
3971 lpfc_issue_gidpt(struct lpfc_vport *vport)
3973 /* Good status, issue CT Request to NameServer */
3974 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) {
3975 /* Cannot issue NameServer FCP Query, so finish up
3978 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
3979 "0606 %s Port TYPE %x %s\n",
3980 "Failed to issue GID_PT to ",
3982 "Finishing discovery.");
3990 * This routine handles processing a NameServer REG_LOGIN mailbox
3991 * command upon completion. It is setup in the LPFC_MBOXQ
3992 * as the completion routine when the command is
3993 * handed off to the SLI layer.
3996 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3998 MAILBOX_t *mb = &pmb->u.mb;
3999 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
4000 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
4001 struct lpfc_vport *vport = pmb->vport;
4003 pmb->ctx_buf = NULL;
4004 pmb->ctx_ndlp = NULL;
4005 vport->gidft_inp = 0;
4007 if (mb->mbxStatus) {
4008 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
4009 "0260 Register NameServer error: 0x%x\n",
4013 /* decrement the node reference count held for this
4014 * callback function.
4017 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4019 mempool_free(pmb, phba->mbox_mem_pool);
4021 /* If no other thread is using the ndlp, free it */
4022 lpfc_nlp_not_used(ndlp);
4024 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
4026 * RegLogin failed, use loop map to make discovery
4029 lpfc_disc_list_loopmap(vport);
4031 /* Start discovery */
4032 lpfc_disc_start(vport);
4035 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4039 if (phba->sli_rev < LPFC_SLI_REV4)
4040 ndlp->nlp_rpi = mb->un.varWords[0];
4041 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
4042 ndlp->nlp_type |= NLP_FABRIC;
4043 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4044 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
4045 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n",
4046 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
4047 kref_read(&ndlp->kref),
4048 ndlp->nlp_usg_map, ndlp);
4050 if (vport->port_state < LPFC_VPORT_READY) {
4051 /* Link up discovery requires Fabric registration. */
4052 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
4053 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
4054 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
4055 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
4057 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4058 (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP))
4059 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP);
4061 if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4062 (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME))
4063 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0,
4066 /* Issue SCR just before NameServer GID_FT Query */
4067 lpfc_issue_els_scr(vport, SCR_DID, 0);
4070 vport->fc_ns_retry = 0;
4071 if (lpfc_issue_gidft(vport) == 0)
4075 * At this point in time we may need to wait for multiple
4076 * SLI_CTNS_GID_FT CT commands to complete before we start discovery.
4078 * decrement the node reference count held for this
4079 * callback function.
4082 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4084 mempool_free(pmb, phba->mbox_mem_pool);
4090 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4092 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4093 struct fc_rport *rport;
4094 struct lpfc_rport_data *rdata;
4095 struct fc_rport_identifiers rport_ids;
4096 struct lpfc_hba *phba = vport->phba;
4098 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
4101 /* Remote port has reappeared. Re-register w/ FC transport */
4102 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
4103 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
4104 rport_ids.port_id = ndlp->nlp_DID;
4105 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
4108 * We leave our node pointer in rport->dd_data when we unregister a
4109 * FCP target port. But fc_remote_port_add zeros the space to which
4110 * rport->dd_data points. So, if we're reusing a previously
4111 * registered port, drop the reference that we took the last time we
4112 * registered the port.
4114 rport = ndlp->rport;
4116 rdata = rport->dd_data;
4117 /* break the link before dropping the ref */
4120 if (rdata->pnode == ndlp)
4122 rdata->pnode = NULL;
4124 /* drop reference for earlier registeration */
4125 put_device(&rport->dev);
4128 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
4129 "rport add: did:x%x flg:x%x type x%x",
4130 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4132 /* Don't add the remote port if unloading. */
4133 if (vport->load_flag & FC_UNLOADING)
4136 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
4137 if (!rport || !get_device(&rport->dev)) {
4138 dev_printk(KERN_WARNING, &phba->pcidev->dev,
4139 "Warning: fc_remote_port_add failed\n");
4143 /* initialize static port data */
4144 rport->maxframe_size = ndlp->nlp_maxframe;
4145 rport->supported_classes = ndlp->nlp_class_sup;
4146 rdata = rport->dd_data;
4147 rdata->pnode = lpfc_nlp_get(ndlp);
4149 if (ndlp->nlp_type & NLP_FCP_TARGET)
4150 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
4151 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
4152 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
4154 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
4155 fc_remote_port_rolechg(rport, rport_ids.roles);
4157 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4158 "3183 rport register x%06x, rport %p role x%x\n",
4159 ndlp->nlp_DID, rport, rport_ids.roles);
4161 if ((rport->scsi_target_id != -1) &&
4162 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
4163 ndlp->nlp_sid = rport->scsi_target_id;
4169 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
4171 struct fc_rport *rport = ndlp->rport;
4172 struct lpfc_vport *vport = ndlp->vport;
4174 if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
4177 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
4178 "rport delete: did:x%x flg:x%x type x%x",
4179 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4181 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4182 "3184 rport unregister x%06x, rport %p\n",
4183 ndlp->nlp_DID, rport);
4185 fc_remote_port_delete(rport);
4191 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
4193 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4195 spin_lock_irq(shost->host_lock);
4197 case NLP_STE_UNUSED_NODE:
4198 vport->fc_unused_cnt += count;
4200 case NLP_STE_PLOGI_ISSUE:
4201 vport->fc_plogi_cnt += count;
4203 case NLP_STE_ADISC_ISSUE:
4204 vport->fc_adisc_cnt += count;
4206 case NLP_STE_REG_LOGIN_ISSUE:
4207 vport->fc_reglogin_cnt += count;
4209 case NLP_STE_PRLI_ISSUE:
4210 vport->fc_prli_cnt += count;
4212 case NLP_STE_UNMAPPED_NODE:
4213 vport->fc_unmap_cnt += count;
4215 case NLP_STE_MAPPED_NODE:
4216 vport->fc_map_cnt += count;
4218 case NLP_STE_NPR_NODE:
4219 if (vport->fc_npr_cnt == 0 && count == -1)
4220 vport->fc_npr_cnt = 0;
4222 vport->fc_npr_cnt += count;
4225 spin_unlock_irq(shost->host_lock);
4229 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4230 int old_state, int new_state)
4232 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4234 if (new_state == NLP_STE_UNMAPPED_NODE) {
4235 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4236 ndlp->nlp_type |= NLP_FC_NODE;
4238 if (new_state == NLP_STE_MAPPED_NODE)
4239 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4240 if (new_state == NLP_STE_NPR_NODE)
4241 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
4243 /* FCP and NVME Transport interface */
4244 if ((old_state == NLP_STE_MAPPED_NODE ||
4245 old_state == NLP_STE_UNMAPPED_NODE)) {
4247 vport->phba->nport_event_cnt++;
4248 lpfc_unregister_remote_port(ndlp);
4251 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) {
4252 vport->phba->nport_event_cnt++;
4253 if (vport->phba->nvmet_support == 0) {
4254 /* Start devloss if target. */
4255 if (ndlp->nlp_type & NLP_NVME_TARGET)
4256 lpfc_nvme_unregister_port(vport, ndlp);
4258 /* NVMET has no upcall. */
4264 /* FCP and NVME Transport interfaces */
4266 if (new_state == NLP_STE_MAPPED_NODE ||
4267 new_state == NLP_STE_UNMAPPED_NODE) {
4268 if (ndlp->nlp_fc4_type ||
4269 ndlp->nlp_DID == Fabric_DID ||
4270 ndlp->nlp_DID == NameServer_DID ||
4271 ndlp->nlp_DID == FDMI_DID) {
4272 vport->phba->nport_event_cnt++;
4274 * Tell the fc transport about the port, if we haven't
4275 * already. If we have, and it's a scsi entity, be
4277 lpfc_register_remote_port(vport, ndlp);
4279 /* Notify the NVME transport of this new rport. */
4280 if (vport->phba->sli_rev >= LPFC_SLI_REV4 &&
4281 ndlp->nlp_fc4_type & NLP_FC4_NVME) {
4282 if (vport->phba->nvmet_support == 0) {
4283 /* Register this rport with the transport.
4284 * Only NVME Target Rports are registered with
4287 if (ndlp->nlp_type & NLP_NVME_TARGET) {
4288 vport->phba->nport_event_cnt++;
4289 lpfc_nvme_register_port(vport, ndlp);
4292 /* Just take an NDLP ref count since the
4293 * target does not register rports.
4300 if ((new_state == NLP_STE_MAPPED_NODE) &&
4301 (vport->stat_data_enabled)) {
4303 * A new target is discovered, if there is no buffer for
4304 * statistical data collection allocate buffer.
4306 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
4307 sizeof(struct lpfc_scsicmd_bkt),
4310 if (!ndlp->lat_data)
4311 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
4312 "0286 lpfc_nlp_state_cleanup failed to "
4313 "allocate statistical data buffer DID "
4314 "0x%x\n", ndlp->nlp_DID);
4317 * If the node just added to Mapped list was an FCP target,
4318 * but the remote port registration failed or assigned a target
4319 * id outside the presentable range - move the node to the
4322 if ((new_state == NLP_STE_MAPPED_NODE) &&
4323 (ndlp->nlp_type & NLP_FCP_TARGET) &&
4325 ndlp->rport->scsi_target_id == -1 ||
4326 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
4327 spin_lock_irq(shost->host_lock);
4328 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
4329 spin_unlock_irq(shost->host_lock);
4330 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4335 lpfc_nlp_state_name(char *buffer, size_t size, int state)
4337 static char *states[] = {
4338 [NLP_STE_UNUSED_NODE] = "UNUSED",
4339 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
4340 [NLP_STE_ADISC_ISSUE] = "ADISC",
4341 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
4342 [NLP_STE_PRLI_ISSUE] = "PRLI",
4343 [NLP_STE_LOGO_ISSUE] = "LOGO",
4344 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
4345 [NLP_STE_MAPPED_NODE] = "MAPPED",
4346 [NLP_STE_NPR_NODE] = "NPR",
4349 if (state < NLP_STE_MAX_STATE && states[state])
4350 strlcpy(buffer, states[state], size);
4352 snprintf(buffer, size, "unknown (%d)", state);
4357 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4360 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4361 int old_state = ndlp->nlp_state;
4362 char name1[16], name2[16];
4364 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4365 "0904 NPort state transition x%06x, %s -> %s\n",
4367 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
4368 lpfc_nlp_state_name(name2, sizeof(name2), state));
4370 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4371 "node statechg did:x%x old:%d ste:%d",
4372 ndlp->nlp_DID, old_state, state);
4374 if (old_state == NLP_STE_NPR_NODE &&
4375 state != NLP_STE_NPR_NODE)
4376 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4377 if (old_state == NLP_STE_UNMAPPED_NODE) {
4378 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
4379 ndlp->nlp_type &= ~NLP_FC_NODE;
4382 if (list_empty(&ndlp->nlp_listp)) {
4383 spin_lock_irq(shost->host_lock);
4384 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4385 spin_unlock_irq(shost->host_lock);
4386 } else if (old_state)
4387 lpfc_nlp_counters(vport, old_state, -1);
4389 ndlp->nlp_state = state;
4390 lpfc_nlp_counters(vport, state, 1);
4391 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
4395 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4397 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4399 if (list_empty(&ndlp->nlp_listp)) {
4400 spin_lock_irq(shost->host_lock);
4401 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4402 spin_unlock_irq(shost->host_lock);
4407 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4409 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4411 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4412 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4413 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4414 spin_lock_irq(shost->host_lock);
4415 list_del_init(&ndlp->nlp_listp);
4416 spin_unlock_irq(shost->host_lock);
4417 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4418 NLP_STE_UNUSED_NODE);
4422 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4424 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4425 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4426 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4427 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4428 NLP_STE_UNUSED_NODE);
4431 * lpfc_initialize_node - Initialize all fields of node object
4432 * @vport: Pointer to Virtual Port object.
4433 * @ndlp: Pointer to FC node object.
4434 * @did: FC_ID of the node.
4436 * This function is always called when node object need to be initialized.
4437 * It initializes all the fields of the node object. Although the reference
4438 * to phba from @ndlp can be obtained indirectly through it's reference to
4439 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4440 * to the life-span of the @ndlp might go beyond the existence of @vport as
4441 * the final release of ndlp is determined by its reference count. And, the
4442 * operation on @ndlp needs the reference to phba.
4445 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4448 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
4449 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
4450 timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0);
4451 ndlp->nlp_DID = did;
4452 ndlp->vport = vport;
4453 ndlp->phba = vport->phba;
4454 ndlp->nlp_sid = NLP_NO_SID;
4455 ndlp->nlp_fc4_type = NLP_FC4_NONE;
4456 kref_init(&ndlp->kref);
4457 NLP_INT_NODE_ACT(ndlp);
4458 atomic_set(&ndlp->cmd_pending, 0);
4459 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4460 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
4463 struct lpfc_nodelist *
4464 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4467 struct lpfc_hba *phba = vport->phba;
4469 unsigned long flags;
4470 unsigned long *active_rrqs_xri_bitmap = NULL;
4471 int rpi = LPFC_RPI_ALLOC_ERROR;
4472 uint32_t defer_did = 0;
4477 if (phba->sli_rev == LPFC_SLI_REV4) {
4478 rpi = lpfc_sli4_alloc_rpi(vport->phba);
4479 if (rpi == LPFC_RPI_ALLOC_ERROR)
4483 spin_lock_irqsave(&phba->ndlp_lock, flags);
4484 /* The ndlp should not be in memory free mode */
4485 if (NLP_CHK_FREE_REQ(ndlp)) {
4486 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4487 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4488 "0277 lpfc_enable_node: ndlp:x%p "
4489 "usgmap:x%x refcnt:%d\n",
4490 (void *)ndlp, ndlp->nlp_usg_map,
4491 kref_read(&ndlp->kref));
4494 /* The ndlp should not already be in active mode */
4495 if (NLP_CHK_NODE_ACT(ndlp)) {
4496 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4497 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4498 "0278 lpfc_enable_node: ndlp:x%p "
4499 "usgmap:x%x refcnt:%d\n",
4500 (void *)ndlp, ndlp->nlp_usg_map,
4501 kref_read(&ndlp->kref));
4505 /* First preserve the orginal DID, xri_bitmap and some flags */
4506 did = ndlp->nlp_DID;
4507 flag = (ndlp->nlp_flag & NLP_UNREG_INP);
4508 if (flag & NLP_UNREG_INP)
4509 defer_did = ndlp->nlp_defer_did;
4510 if (phba->sli_rev == LPFC_SLI_REV4)
4511 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap;
4513 /* Zero ndlp except of ndlp linked list pointer */
4514 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
4515 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
4517 /* Next reinitialize and restore saved objects */
4518 lpfc_initialize_node(vport, ndlp, did);
4519 ndlp->nlp_flag |= flag;
4520 if (flag & NLP_UNREG_INP)
4521 ndlp->nlp_defer_did = defer_did;
4522 if (phba->sli_rev == LPFC_SLI_REV4)
4523 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap;
4525 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4526 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
4527 ndlp->nlp_rpi = rpi;
4528 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4529 "0008 rpi:%x DID:%x flg:%x refcnt:%d "
4530 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
4532 kref_read(&ndlp->kref),
4533 ndlp->nlp_usg_map, ndlp);
4537 if (state != NLP_STE_UNUSED_NODE)
4538 lpfc_nlp_set_state(vport, ndlp, state);
4540 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4541 "node enable: did:x%x",
4542 ndlp->nlp_DID, 0, 0);
4546 if (phba->sli_rev == LPFC_SLI_REV4)
4547 lpfc_sli4_free_rpi(vport->phba, rpi);
4552 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4555 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
4556 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
4557 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4558 * until ALL other outstanding threads have completed. We check
4559 * that the ndlp not already in the UNUSED state before we proceed.
4561 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4563 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
4564 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
4565 lpfc_cleanup_vports_rrqs(vport, ndlp);
4566 lpfc_unreg_rpi(vport, ndlp);
4574 * Start / ReStart rescue timer for Discovery / RSCN handling
4577 lpfc_set_disctmo(struct lpfc_vport *vport)
4579 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4580 struct lpfc_hba *phba = vport->phba;
4583 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
4584 /* For FAN, timeout should be greater than edtov */
4585 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
4587 /* Normal discovery timeout should be > than ELS/CT timeout
4588 * FC spec states we need 3 * ratov for CT requests
4590 tmo = ((phba->fc_ratov * 3) + 3);
4594 if (!timer_pending(&vport->fc_disctmo)) {
4595 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4596 "set disc timer: tmo:x%x state:x%x flg:x%x",
4597 tmo, vport->port_state, vport->fc_flag);
4600 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));
4601 spin_lock_irq(shost->host_lock);
4602 vport->fc_flag |= FC_DISC_TMO;
4603 spin_unlock_irq(shost->host_lock);
4605 /* Start Discovery Timer state <hba_state> */
4606 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4607 "0247 Start Discovery Timer state x%x "
4608 "Data: x%x x%lx x%x x%x\n",
4609 vport->port_state, tmo,
4610 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
4611 vport->fc_adisc_cnt);
4617 * Cancel rescue timer for Discovery / RSCN handling
4620 lpfc_can_disctmo(struct lpfc_vport *vport)
4622 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4623 unsigned long iflags;
4625 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4626 "can disc timer: state:x%x rtry:x%x flg:x%x",
4627 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
4629 /* Turn off discovery timer if its running */
4630 if (vport->fc_flag & FC_DISC_TMO) {
4631 spin_lock_irqsave(shost->host_lock, iflags);
4632 vport->fc_flag &= ~FC_DISC_TMO;
4633 spin_unlock_irqrestore(shost->host_lock, iflags);
4634 del_timer_sync(&vport->fc_disctmo);
4635 spin_lock_irqsave(&vport->work_port_lock, iflags);
4636 vport->work_port_events &= ~WORKER_DISC_TMO;
4637 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
4640 /* Cancel Discovery Timer state <hba_state> */
4641 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4642 "0248 Cancel Discovery Timer state x%x "
4643 "Data: x%x x%x x%x\n",
4644 vport->port_state, vport->fc_flag,
4645 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
4650 * Check specified ring for outstanding IOCB on the SLI queue
4651 * Return true if iocb matches the specified nport
4654 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
4655 struct lpfc_sli_ring *pring,
4656 struct lpfc_iocbq *iocb,
4657 struct lpfc_nodelist *ndlp)
4659 IOCB_t *icmd = &iocb->iocb;
4660 struct lpfc_vport *vport = ndlp->vport;
4662 if (iocb->vport != vport)
4665 if (pring->ringno == LPFC_ELS_RING) {
4666 switch (icmd->ulpCommand) {
4667 case CMD_GEN_REQUEST64_CR:
4668 if (iocb->context_un.ndlp == ndlp)
4670 case CMD_ELS_REQUEST64_CR:
4671 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
4673 case CMD_XMIT_ELS_RSP64_CX:
4674 if (iocb->context1 == (uint8_t *) ndlp)
4677 } else if (pring->ringno == LPFC_FCP_RING) {
4678 /* Skip match check if waiting to relogin to FCP target */
4679 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4680 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
4683 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
4691 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba,
4692 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring,
4693 struct list_head *dequeue_list)
4695 struct lpfc_iocbq *iocb, *next_iocb;
4697 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
4698 /* Check to see if iocb matches the nport */
4699 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
4700 /* match, dequeue */
4701 list_move_tail(&iocb->list, dequeue_list);
4706 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba,
4707 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
4709 struct lpfc_sli *psli = &phba->sli;
4712 spin_lock_irq(&phba->hbalock);
4713 for (i = 0; i < psli->num_rings; i++)
4714 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i],
4716 spin_unlock_irq(&phba->hbalock);
4720 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba,
4721 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
4723 struct lpfc_sli_ring *pring;
4724 struct lpfc_queue *qp = NULL;
4726 spin_lock_irq(&phba->hbalock);
4727 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
4731 spin_lock(&pring->ring_lock);
4732 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list);
4733 spin_unlock(&pring->ring_lock);
4735 spin_unlock_irq(&phba->hbalock);
4739 * Free resources / clean up outstanding I/Os
4740 * associated with nlp_rpi in the LPFC_NODELIST entry.
4743 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
4745 LIST_HEAD(completions);
4747 lpfc_fabric_abort_nport(ndlp);
4750 * Everything that matches on txcmplq will be returned
4751 * by firmware with a no rpi error.
4753 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4754 if (phba->sli_rev != LPFC_SLI_REV4)
4755 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions);
4757 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions);
4760 /* Cancel all the IOCBs from the completions list */
4761 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4768 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
4769 * @phba: Pointer to HBA context object.
4770 * @pmb: Pointer to mailbox object.
4772 * This function will issue an ELS LOGO command after completing
4776 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4778 struct lpfc_vport *vport = pmb->vport;
4779 struct lpfc_nodelist *ndlp;
4781 ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp);
4784 lpfc_issue_els_logo(vport, ndlp, 0);
4785 mempool_free(pmb, phba->mbox_mem_pool);
4787 /* Check to see if there are any deferred events to process */
4788 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
4789 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
4790 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4791 "1434 UNREG cmpl deferred logo x%x "
4792 "on NPort x%x Data: x%x %p\n",
4793 ndlp->nlp_rpi, ndlp->nlp_DID,
4794 ndlp->nlp_defer_did, ndlp);
4796 ndlp->nlp_flag &= ~NLP_UNREG_INP;
4797 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
4798 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
4800 ndlp->nlp_flag &= ~NLP_UNREG_INP;
4805 * Free rpi associated with LPFC_NODELIST entry.
4806 * This routine is called from lpfc_freenode(), when we are removing
4807 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4808 * LOGO that completes successfully, and we are waiting to PLOGI back
4809 * to the remote NPort. In addition, it is called after we receive
4810 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4811 * we are waiting to PLOGI back to the remote NPort.
4814 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4816 struct lpfc_hba *phba = vport->phba;
4818 int rc, acc_plogi = 1;
4821 if (ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4822 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) {
4823 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
4824 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
4825 "3366 RPI x%x needs to be "
4826 "unregistered nlp_flag x%x "
4828 ndlp->nlp_rpi, ndlp->nlp_flag,
4831 /* If there is already an UNREG in progress for this ndlp,
4832 * no need to queue up another one.
4834 if (ndlp->nlp_flag & NLP_UNREG_INP) {
4835 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4836 "1436 unreg_rpi SKIP UNREG x%x on "
4837 "NPort x%x deferred x%x flg x%x "
4839 ndlp->nlp_rpi, ndlp->nlp_DID,
4840 ndlp->nlp_defer_did,
4841 ndlp->nlp_flag, ndlp);
4845 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4847 /* SLI4 ports require the physical rpi value. */
4848 rpi = ndlp->nlp_rpi;
4849 if (phba->sli_rev == LPFC_SLI_REV4)
4850 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
4852 lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
4853 mbox->vport = vport;
4854 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
4855 mbox->ctx_ndlp = ndlp;
4856 mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
4858 if (phba->sli_rev == LPFC_SLI_REV4 &&
4859 (!(vport->load_flag & FC_UNLOADING)) &&
4860 (bf_get(lpfc_sli_intf_if_type,
4861 &phba->sli4_hba.sli_intf) >=
4862 LPFC_SLI_INTF_IF_TYPE_2) &&
4863 (kref_read(&ndlp->kref) > 0)) {
4864 mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
4866 lpfc_sli4_unreg_rpi_cmpl_clr;
4868 * accept PLOGIs after unreg_rpi_cmpl
4872 mbox->ctx_ndlp = ndlp;
4874 lpfc_sli_def_mbox_cmpl;
4877 if (((ndlp->nlp_DID & Fabric_DID_MASK) !=
4879 (!(vport->fc_flag & FC_OFFLINE_MODE)))
4880 ndlp->nlp_flag |= NLP_UNREG_INP;
4882 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4883 "1433 unreg_rpi UNREG x%x on "
4884 "NPort x%x deferred flg x%x Data:%p\n",
4885 ndlp->nlp_rpi, ndlp->nlp_DID,
4886 ndlp->nlp_flag, ndlp);
4888 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4889 if (rc == MBX_NOT_FINISHED) {
4890 mempool_free(mbox, phba->mbox_mem_pool);
4894 lpfc_no_rpi(phba, ndlp);
4896 if (phba->sli_rev != LPFC_SLI_REV4)
4898 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
4899 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4901 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4904 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4909 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4910 * @phba: pointer to lpfc hba data structure.
4912 * This routine is invoked to unregister all the currently registered RPIs
4916 lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
4918 struct lpfc_vport **vports;
4919 struct lpfc_nodelist *ndlp;
4920 struct Scsi_Host *shost;
4923 vports = lpfc_create_vport_work_array(phba);
4925 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
4926 "2884 Vport array allocation failed \n");
4929 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4930 shost = lpfc_shost_from_vport(vports[i]);
4931 spin_lock_irq(shost->host_lock);
4932 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
4933 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4934 /* The mempool_alloc might sleep */
4935 spin_unlock_irq(shost->host_lock);
4936 lpfc_unreg_rpi(vports[i], ndlp);
4937 spin_lock_irq(shost->host_lock);
4940 spin_unlock_irq(shost->host_lock);
4942 lpfc_destroy_vport_work_array(phba, vports);
4946 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
4948 struct lpfc_hba *phba = vport->phba;
4952 if (phba->sli_rev == LPFC_SLI_REV4) {
4953 lpfc_sli4_unreg_all_rpis(vport);
4957 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4959 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
4961 mbox->vport = vport;
4962 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4963 mbox->ctx_ndlp = NULL;
4964 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
4965 if (rc != MBX_TIMEOUT)
4966 mempool_free(mbox, phba->mbox_mem_pool);
4968 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4969 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4970 "1836 Could not issue "
4971 "unreg_login(all_rpis) status %d\n", rc);
4976 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
4978 struct lpfc_hba *phba = vport->phba;
4982 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4984 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
4986 mbox->vport = vport;
4987 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4988 mbox->ctx_ndlp = NULL;
4989 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
4990 if (rc != MBX_TIMEOUT)
4991 mempool_free(mbox, phba->mbox_mem_pool);
4993 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4994 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4995 "1815 Could not issue "
4996 "unreg_did (default rpis) status %d\n",
5002 * Free resources associated with LPFC_NODELIST entry
5003 * so it can be freed.
5006 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5008 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5009 struct lpfc_hba *phba = vport->phba;
5010 LPFC_MBOXQ_t *mb, *nextmb;
5011 struct lpfc_dmabuf *mp;
5013 /* Cleanup node for NPort <nlp_DID> */
5014 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5015 "0900 Cleanup node for NPort x%x "
5016 "Data: x%x x%x x%x\n",
5017 ndlp->nlp_DID, ndlp->nlp_flag,
5018 ndlp->nlp_state, ndlp->nlp_rpi);
5019 if (NLP_CHK_FREE_REQ(ndlp)) {
5020 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
5021 "0280 lpfc_cleanup_node: ndlp:x%p "
5022 "usgmap:x%x refcnt:%d\n",
5023 (void *)ndlp, ndlp->nlp_usg_map,
5024 kref_read(&ndlp->kref));
5025 lpfc_dequeue_node(vport, ndlp);
5027 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
5028 "0281 lpfc_cleanup_node: ndlp:x%p "
5029 "usgmap:x%x refcnt:%d\n",
5030 (void *)ndlp, ndlp->nlp_usg_map,
5031 kref_read(&ndlp->kref));
5032 lpfc_disable_node(vport, ndlp);
5036 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
5038 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
5039 if ((mb = phba->sli.mbox_active)) {
5040 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
5041 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
5042 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
5043 mb->ctx_ndlp = NULL;
5044 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5048 spin_lock_irq(&phba->hbalock);
5049 /* Cleanup REG_LOGIN completions which are not yet processed */
5050 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
5051 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
5052 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
5053 (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp))
5056 mb->ctx_ndlp = NULL;
5057 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5060 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
5061 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
5062 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
5063 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
5064 mp = (struct lpfc_dmabuf *)(mb->ctx_buf);
5066 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
5069 list_del(&mb->list);
5070 mempool_free(mb, phba->mbox_mem_pool);
5071 /* We shall not invoke the lpfc_nlp_put to decrement
5072 * the ndlp reference count as we are in the process
5073 * of lpfc_nlp_release.
5077 spin_unlock_irq(&phba->hbalock);
5079 lpfc_els_abort(phba, ndlp);
5081 spin_lock_irq(shost->host_lock);
5082 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
5083 spin_unlock_irq(shost->host_lock);
5085 ndlp->nlp_last_elscmd = 0;
5086 del_timer_sync(&ndlp->nlp_delayfunc);
5088 list_del_init(&ndlp->els_retry_evt.evt_listp);
5089 list_del_init(&ndlp->dev_loss_evt.evt_listp);
5090 lpfc_cleanup_vports_rrqs(vport, ndlp);
5091 lpfc_unreg_rpi(vport, ndlp);
5097 * Check to see if we can free the nlp back to the freelist.
5098 * If we are in the middle of using the nlp in the discovery state
5099 * machine, defer the free till we reach the end of the state machine.
5102 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5104 struct lpfc_hba *phba = vport->phba;
5105 struct lpfc_rport_data *rdata;
5106 struct fc_rport *rport;
5110 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5111 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
5112 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
5113 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) &&
5114 phba->sli_rev != LPFC_SLI_REV4) {
5115 /* For this case we need to cleanup the default rpi
5116 * allocated by the firmware.
5118 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5119 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n",
5120 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
5121 kref_read(&ndlp->kref),
5122 ndlp->nlp_usg_map, ndlp);
5123 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
5125 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
5126 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi);
5128 mempool_free(mbox, phba->mbox_mem_pool);
5131 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
5132 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
5133 mbox->vport = vport;
5134 mbox->ctx_ndlp = ndlp;
5135 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5136 if (rc == MBX_NOT_FINISHED) {
5137 mempool_free(mbox, phba->mbox_mem_pool);
5142 lpfc_cleanup_node(vport, ndlp);
5145 * ndlp->rport must be set to NULL before it reaches here
5146 * i.e. break rport/node link before doing lpfc_nlp_put for
5147 * registered rport and then drop the reference of rport.
5151 * extra lpfc_nlp_put dropped the reference of ndlp
5152 * for registered rport so need to cleanup rport
5154 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
5155 "0940 removed node x%p DID x%x "
5156 " rport not null %p\n",
5157 ndlp, ndlp->nlp_DID, ndlp->rport);
5158 rport = ndlp->rport;
5159 rdata = rport->dd_data;
5160 rdata->pnode = NULL;
5162 put_device(&rport->dev);
5167 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
5170 D_ID mydid, ndlpdid, matchdid;
5172 if (did == Bcast_DID)
5175 /* First check for Direct match */
5176 if (ndlp->nlp_DID == did)
5179 /* Next check for area/domain identically equals 0 match */
5180 mydid.un.word = vport->fc_myDID;
5181 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
5185 matchdid.un.word = did;
5186 ndlpdid.un.word = ndlp->nlp_DID;
5187 if (matchdid.un.b.id == ndlpdid.un.b.id) {
5188 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
5189 (mydid.un.b.area == matchdid.un.b.area)) {
5190 /* This code is supposed to match the ID
5191 * for a private loop device that is
5192 * connect to fl_port. But we need to
5193 * check that the port did not just go
5194 * from pt2pt to fabric or we could end
5195 * up matching ndlp->nlp_DID 000001 to
5196 * fabric DID 0x20101
5198 if ((ndlpdid.un.b.domain == 0) &&
5199 (ndlpdid.un.b.area == 0)) {
5200 if (ndlpdid.un.b.id &&
5201 vport->phba->fc_topology ==
5208 matchdid.un.word = ndlp->nlp_DID;
5209 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
5210 (mydid.un.b.area == ndlpdid.un.b.area)) {
5211 if ((matchdid.un.b.domain == 0) &&
5212 (matchdid.un.b.area == 0)) {
5213 if (matchdid.un.b.id)
5221 /* Search for a nodelist entry */
5222 static struct lpfc_nodelist *
5223 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
5225 struct lpfc_nodelist *ndlp;
5228 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5229 if (lpfc_matchdid(vport, ndlp, did)) {
5230 data1 = (((uint32_t) ndlp->nlp_state << 24) |
5231 ((uint32_t) ndlp->nlp_xri << 16) |
5232 ((uint32_t) ndlp->nlp_type << 8) |
5233 ((uint32_t) ndlp->nlp_rpi & 0xff));
5234 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5235 "0929 FIND node DID "
5236 "Data: x%p x%x x%x x%x %p\n",
5237 ndlp, ndlp->nlp_DID,
5238 ndlp->nlp_flag, data1,
5239 ndlp->active_rrqs_xri_bitmap);
5244 /* FIND node did <did> NOT FOUND */
5245 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5246 "0932 FIND node did x%x NOT FOUND.\n", did);
5250 struct lpfc_nodelist *
5251 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
5253 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5254 struct lpfc_nodelist *ndlp;
5255 unsigned long iflags;
5257 spin_lock_irqsave(shost->host_lock, iflags);
5258 ndlp = __lpfc_findnode_did(vport, did);
5259 spin_unlock_irqrestore(shost->host_lock, iflags);
5263 struct lpfc_nodelist *
5264 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
5266 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5267 struct lpfc_nodelist *ndlp;
5269 ndlp = lpfc_findnode_did(vport, did);
5271 if (vport->phba->nvmet_support)
5273 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
5274 lpfc_rscn_payload_check(vport, did) == 0)
5276 ndlp = lpfc_nlp_init(vport, did);
5279 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5280 spin_lock_irq(shost->host_lock);
5281 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5282 spin_unlock_irq(shost->host_lock);
5284 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5285 if (vport->phba->nvmet_support)
5287 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
5290 spin_lock_irq(shost->host_lock);
5291 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5292 spin_unlock_irq(shost->host_lock);
5296 /* The NVME Target does not want to actively manage an rport.
5297 * The goal is to allow the target to reset its state and clear
5298 * pending IO in preparation for the initiator to recover.
5300 if ((vport->fc_flag & FC_RSCN_MODE) &&
5301 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
5302 if (lpfc_rscn_payload_check(vport, did)) {
5304 /* Since this node is marked for discovery,
5305 * delay timeout is not needed.
5307 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5309 /* NVME Target mode waits until rport is known to be
5310 * impacted by the RSCN before it transitions. No
5311 * active management - just go to NPR provided the
5312 * node had a valid login.
5314 if (vport->phba->nvmet_support)
5317 /* If we've already received a PLOGI from this NPort
5318 * we don't need to try to discover it again.
5320 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
5323 spin_lock_irq(shost->host_lock);
5324 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5325 spin_unlock_irq(shost->host_lock);
5329 /* If the initiator received a PLOGI from this NPort or if the
5330 * initiator is already in the process of discovery on it,
5331 * there's no need to try to discover it again.
5333 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
5334 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5335 (!vport->phba->nvmet_support &&
5336 ndlp->nlp_flag & NLP_RCV_PLOGI))
5339 if (vport->phba->nvmet_support)
5342 /* Moving to NPR state clears unsolicited flags and
5343 * allows for rediscovery
5345 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5347 spin_lock_irq(shost->host_lock);
5348 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5349 spin_unlock_irq(shost->host_lock);
5354 /* Build a list of nodes to discover based on the loopmap */
5356 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
5358 struct lpfc_hba *phba = vport->phba;
5360 uint32_t alpa, index;
5362 if (!lpfc_is_link_up(phba))
5365 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
5368 /* Check for loop map present or not */
5369 if (phba->alpa_map[0]) {
5370 for (j = 1; j <= phba->alpa_map[0]; j++) {
5371 alpa = phba->alpa_map[j];
5372 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
5374 lpfc_setup_disc_node(vport, alpa);
5377 /* No alpamap, so try all alpa's */
5378 for (j = 0; j < FC_MAXLOOP; j++) {
5379 /* If cfg_scan_down is set, start from highest
5380 * ALPA (0xef) to lowest (0x1).
5382 if (vport->cfg_scan_down)
5385 index = FC_MAXLOOP - j - 1;
5386 alpa = lpfcAlpaArray[index];
5387 if ((vport->fc_myDID & 0xff) == alpa)
5389 lpfc_setup_disc_node(vport, alpa);
5397 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
5400 struct lpfc_sli *psli = &phba->sli;
5401 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING];
5402 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING];
5406 * if it's not a physical port or if we already send
5407 * clear_la then don't send it.
5409 if ((phba->link_state >= LPFC_CLEAR_LA) ||
5410 (vport->port_type != LPFC_PHYSICAL_PORT) ||
5411 (phba->sli_rev == LPFC_SLI_REV4))
5414 /* Link up discovery */
5415 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
5416 phba->link_state = LPFC_CLEAR_LA;
5417 lpfc_clear_la(phba, mbox);
5418 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
5419 mbox->vport = vport;
5420 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5421 if (rc == MBX_NOT_FINISHED) {
5422 mempool_free(mbox, phba->mbox_mem_pool);
5423 lpfc_disc_flush_list(vport);
5424 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5425 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5426 phba->link_state = LPFC_HBA_ERROR;
5431 /* Reg_vpi to tell firmware to resume normal operations */
5433 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
5435 LPFC_MBOXQ_t *regvpimbox;
5437 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5439 lpfc_reg_vpi(vport, regvpimbox);
5440 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
5441 regvpimbox->vport = vport;
5442 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
5443 == MBX_NOT_FINISHED) {
5444 mempool_free(regvpimbox, phba->mbox_mem_pool);
5449 /* Start Link up / RSCN discovery on NPR nodes */
5451 lpfc_disc_start(struct lpfc_vport *vport)
5453 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5454 struct lpfc_hba *phba = vport->phba;
5456 uint32_t clear_la_pending;
5458 if (!lpfc_is_link_up(phba)) {
5459 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5460 "3315 Link is not up %x\n",
5465 if (phba->link_state == LPFC_CLEAR_LA)
5466 clear_la_pending = 1;
5468 clear_la_pending = 0;
5470 if (vport->port_state < LPFC_VPORT_READY)
5471 vport->port_state = LPFC_DISC_AUTH;
5473 lpfc_set_disctmo(vport);
5475 vport->fc_prevDID = vport->fc_myDID;
5476 vport->num_disc_nodes = 0;
5478 /* Start Discovery state <hba_state> */
5479 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5480 "0202 Start Discovery hba state x%x "
5481 "Data: x%x x%x x%x\n",
5482 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
5483 vport->fc_adisc_cnt);
5485 /* First do ADISCs - if any */
5486 num_sent = lpfc_els_disc_adisc(vport);
5491 /* Register the VPI for SLI3, NPIV only. */
5492 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5493 !(vport->fc_flag & FC_PT2PT) &&
5494 !(vport->fc_flag & FC_RSCN_MODE) &&
5495 (phba->sli_rev < LPFC_SLI_REV4)) {
5496 lpfc_issue_clear_la(phba, vport);
5497 lpfc_issue_reg_vpi(phba, vport);
5502 * For SLI2, we need to set port_state to READY and continue
5505 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
5506 /* If we get here, there is nothing to ADISC */
5507 lpfc_issue_clear_la(phba, vport);
5509 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
5510 vport->num_disc_nodes = 0;
5511 /* go thru NPR nodes and issue ELS PLOGIs */
5512 if (vport->fc_npr_cnt)
5513 lpfc_els_disc_plogi(vport);
5515 if (!vport->num_disc_nodes) {
5516 spin_lock_irq(shost->host_lock);
5517 vport->fc_flag &= ~FC_NDISC_ACTIVE;
5518 spin_unlock_irq(shost->host_lock);
5519 lpfc_can_disctmo(vport);
5522 vport->port_state = LPFC_VPORT_READY;
5524 /* Next do PLOGIs - if any */
5525 num_sent = lpfc_els_disc_plogi(vport);
5530 if (vport->fc_flag & FC_RSCN_MODE) {
5531 /* Check to see if more RSCNs came in while we
5532 * were processing this one.
5534 if ((vport->fc_rscn_id_cnt == 0) &&
5535 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
5536 spin_lock_irq(shost->host_lock);
5537 vport->fc_flag &= ~FC_RSCN_MODE;
5538 spin_unlock_irq(shost->host_lock);
5539 lpfc_can_disctmo(vport);
5541 lpfc_els_handle_rscn(vport);
5548 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
5549 * ring the match the sppecified nodelist.
5552 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
5554 LIST_HEAD(completions);
5556 struct lpfc_iocbq *iocb, *next_iocb;
5557 struct lpfc_sli_ring *pring;
5559 pring = lpfc_phba_elsring(phba);
5560 if (unlikely(!pring))
5563 /* Error matching iocb on txq or txcmplq
5564 * First check the txq.
5566 spin_lock_irq(&phba->hbalock);
5567 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
5568 if (iocb->context1 != ndlp) {
5572 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
5573 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
5575 list_move_tail(&iocb->list, &completions);
5579 /* Next check the txcmplq */
5580 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
5581 if (iocb->context1 != ndlp) {
5585 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
5586 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
5587 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
5590 spin_unlock_irq(&phba->hbalock);
5592 /* Cancel all the IOCBs from the completions list */
5593 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
5598 lpfc_disc_flush_list(struct lpfc_vport *vport)
5600 struct lpfc_nodelist *ndlp, *next_ndlp;
5601 struct lpfc_hba *phba = vport->phba;
5603 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
5604 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5606 if (!NLP_CHK_NODE_ACT(ndlp))
5608 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5609 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
5610 lpfc_free_tx(phba, ndlp);
5617 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
5619 lpfc_els_flush_rscn(vport);
5620 lpfc_els_flush_cmd(vport);
5621 lpfc_disc_flush_list(vport);
5624 /*****************************************************************************/
5626 * NAME: lpfc_disc_timeout
5628 * FUNCTION: Fibre Channel driver discovery timeout routine.
5630 * EXECUTION ENVIRONMENT: interrupt only
5638 /*****************************************************************************/
5640 lpfc_disc_timeout(struct timer_list *t)
5642 struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo);
5643 struct lpfc_hba *phba = vport->phba;
5644 uint32_t tmo_posted;
5645 unsigned long flags = 0;
5647 if (unlikely(!phba))
5650 spin_lock_irqsave(&vport->work_port_lock, flags);
5651 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
5653 vport->work_port_events |= WORKER_DISC_TMO;
5654 spin_unlock_irqrestore(&vport->work_port_lock, flags);
5657 lpfc_worker_wake_up(phba);
5662 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
5664 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5665 struct lpfc_hba *phba = vport->phba;
5666 struct lpfc_sli *psli = &phba->sli;
5667 struct lpfc_nodelist *ndlp, *next_ndlp;
5668 LPFC_MBOXQ_t *initlinkmbox;
5669 int rc, clrlaerr = 0;
5671 if (!(vport->fc_flag & FC_DISC_TMO))
5674 spin_lock_irq(shost->host_lock);
5675 vport->fc_flag &= ~FC_DISC_TMO;
5676 spin_unlock_irq(shost->host_lock);
5678 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
5679 "disc timeout: state:x%x rtry:x%x flg:x%x",
5680 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
5682 switch (vport->port_state) {
5684 case LPFC_LOCAL_CFG_LINK:
5686 * port_state is identically LPFC_LOCAL_CFG_LINK while
5687 * waiting for FAN timeout
5689 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
5690 "0221 FAN timeout\n");
5692 /* Start discovery by sending FLOGI, clean up old rpis */
5693 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5695 if (!NLP_CHK_NODE_ACT(ndlp))
5697 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
5699 if (ndlp->nlp_type & NLP_FABRIC) {
5700 /* Clean up the ndlp on Fabric connections */
5701 lpfc_drop_node(vport, ndlp);
5703 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
5704 /* Fail outstanding IO now since device
5705 * is marked for PLOGI.
5707 lpfc_unreg_rpi(vport, ndlp);
5710 if (vport->port_state != LPFC_FLOGI) {
5711 if (phba->sli_rev <= LPFC_SLI_REV3)
5712 lpfc_initial_flogi(vport);
5714 lpfc_issue_init_vfi(vport);
5721 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
5722 /* Initial FLOGI timeout */
5723 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5724 "0222 Initial %s timeout\n",
5725 vport->vpi ? "FDISC" : "FLOGI");
5727 /* Assume no Fabric and go on with discovery.
5728 * Check for outstanding ELS FLOGI to abort.
5731 /* FLOGI failed, so just use loop map to make discovery list */
5732 lpfc_disc_list_loopmap(vport);
5734 /* Start discovery */
5735 lpfc_disc_start(vport);
5738 case LPFC_FABRIC_CFG_LINK:
5739 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5741 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5742 "0223 Timeout while waiting for "
5743 "NameServer login\n");
5744 /* Next look for NameServer ndlp */
5745 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5746 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
5747 lpfc_els_abort(phba, ndlp);
5749 /* ReStart discovery */
5753 /* Check for wait for NameServer Rsp timeout */
5754 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5755 "0224 NameServer Query timeout "
5757 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5759 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
5760 /* Try it one more time */
5761 vport->fc_ns_retry++;
5762 vport->gidft_inp = 0;
5763 rc = lpfc_issue_gidft(vport);
5767 vport->fc_ns_retry = 0;
5771 * Discovery is over.
5772 * set port_state to PORT_READY if SLI2.
5773 * cmpl_reg_vpi will set port_state to READY for SLI3.
5775 if (phba->sli_rev < LPFC_SLI_REV4) {
5776 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5777 lpfc_issue_reg_vpi(phba, vport);
5779 lpfc_issue_clear_la(phba, vport);
5780 vport->port_state = LPFC_VPORT_READY;
5784 /* Setup and issue mailbox INITIALIZE LINK command */
5785 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5786 if (!initlinkmbox) {
5787 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5788 "0206 Device Discovery "
5789 "completion error\n");
5790 phba->link_state = LPFC_HBA_ERROR;
5794 lpfc_linkdown(phba);
5795 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
5796 phba->cfg_link_speed);
5797 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
5798 initlinkmbox->vport = vport;
5799 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5800 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
5801 lpfc_set_loopback_flag(phba);
5802 if (rc == MBX_NOT_FINISHED)
5803 mempool_free(initlinkmbox, phba->mbox_mem_pool);
5807 case LPFC_DISC_AUTH:
5808 /* Node Authentication timeout */
5809 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5810 "0227 Node Authentication timeout\n");
5811 lpfc_disc_flush_list(vport);
5814 * set port_state to PORT_READY if SLI2.
5815 * cmpl_reg_vpi will set port_state to READY for SLI3.
5817 if (phba->sli_rev < LPFC_SLI_REV4) {
5818 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5819 lpfc_issue_reg_vpi(phba, vport);
5820 else { /* NPIV Not enabled */
5821 lpfc_issue_clear_la(phba, vport);
5822 vport->port_state = LPFC_VPORT_READY;
5827 case LPFC_VPORT_READY:
5828 if (vport->fc_flag & FC_RSCN_MODE) {
5829 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5830 "0231 RSCN timeout Data: x%x "
5832 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5834 /* Cleanup any outstanding ELS commands */
5835 lpfc_els_flush_cmd(vport);
5837 lpfc_els_flush_rscn(vport);
5838 lpfc_disc_flush_list(vport);
5843 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5844 "0273 Unexpected discovery timeout, "
5845 "vport State x%x\n", vport->port_state);
5849 switch (phba->link_state) {
5851 /* CLEAR LA timeout */
5852 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5853 "0228 CLEAR LA timeout\n");
5858 lpfc_issue_clear_la(phba, vport);
5860 case LPFC_LINK_UNKNOWN:
5861 case LPFC_WARM_START:
5862 case LPFC_INIT_START:
5863 case LPFC_INIT_MBX_CMDS:
5864 case LPFC_LINK_DOWN:
5865 case LPFC_HBA_ERROR:
5866 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5867 "0230 Unexpected timeout, hba link "
5868 "state x%x\n", phba->link_state);
5872 case LPFC_HBA_READY:
5877 lpfc_disc_flush_list(vport);
5878 if (phba->sli_rev != LPFC_SLI_REV4) {
5879 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &=
5880 ~LPFC_STOP_IOCB_EVENT;
5881 psli->sli3_ring[LPFC_FCP_RING].flag &=
5882 ~LPFC_STOP_IOCB_EVENT;
5884 vport->port_state = LPFC_VPORT_READY;
5890 * This routine handles processing a NameServer REG_LOGIN mailbox
5891 * command upon completion. It is setup in the LPFC_MBOXQ
5892 * as the completion routine when the command is
5893 * handed off to the SLI layer.
5896 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5898 MAILBOX_t *mb = &pmb->u.mb;
5899 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
5900 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
5901 struct lpfc_vport *vport = pmb->vport;
5903 pmb->ctx_buf = NULL;
5904 pmb->ctx_ndlp = NULL;
5906 if (phba->sli_rev < LPFC_SLI_REV4)
5907 ndlp->nlp_rpi = mb->un.varWords[0];
5908 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
5909 ndlp->nlp_type |= NLP_FABRIC;
5910 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
5911 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5912 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n",
5913 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
5914 kref_read(&ndlp->kref),
5915 ndlp->nlp_usg_map, ndlp);
5917 * Start issuing Fabric-Device Management Interface (FDMI) command to
5918 * 0xfffffa (FDMI well known port).
5919 * DHBA -> DPRT -> RHBA -> RPA (physical port)
5920 * DPRT -> RPRT (vports)
5922 if (vport->port_type == LPFC_PHYSICAL_PORT)
5923 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
5925 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
5928 /* decrement the node reference count held for this callback
5932 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5934 mempool_free(pmb, phba->mbox_mem_pool);
5940 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
5942 uint16_t *rpi = param;
5944 /* check for active node */
5945 if (!NLP_CHK_NODE_ACT(ndlp))
5948 return ndlp->nlp_rpi == *rpi;
5952 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
5954 return memcmp(&ndlp->nlp_portname, param,
5955 sizeof(ndlp->nlp_portname)) == 0;
5958 static struct lpfc_nodelist *
5959 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
5961 struct lpfc_nodelist *ndlp;
5963 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5964 if (filter(ndlp, param)) {
5965 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5966 "3185 FIND node filter %p DID "
5967 "ndlp %p did x%x flg x%x st x%x "
5968 "xri x%x type x%x rpi x%x\n",
5969 filter, ndlp, ndlp->nlp_DID,
5970 ndlp->nlp_flag, ndlp->nlp_state,
5971 ndlp->nlp_xri, ndlp->nlp_type,
5976 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5977 "3186 FIND node filter %p NOT FOUND.\n", filter);
5982 * This routine looks up the ndlp lists for the given RPI. If rpi found it
5983 * returns the node list element pointer else return NULL.
5985 struct lpfc_nodelist *
5986 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
5988 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
5992 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
5993 * returns the node element list pointer else return NULL.
5995 struct lpfc_nodelist *
5996 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
5998 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5999 struct lpfc_nodelist *ndlp;
6001 spin_lock_irq(shost->host_lock);
6002 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
6003 spin_unlock_irq(shost->host_lock);
6008 * This routine looks up the ndlp lists for the given RPI. If the rpi
6009 * is found, the routine returns the node element list pointer else
6012 struct lpfc_nodelist *
6013 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
6015 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6016 struct lpfc_nodelist *ndlp;
6018 spin_lock_irq(shost->host_lock);
6019 ndlp = __lpfc_findnode_rpi(vport, rpi);
6020 spin_unlock_irq(shost->host_lock);
6025 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
6026 * @phba: pointer to lpfc hba data structure.
6027 * @vpi: the physical host virtual N_Port identifier.
6029 * This routine finds a vport on a HBA (referred by @phba) through a
6030 * @vpi. The function walks the HBA's vport list and returns the address
6031 * of the vport with the matching @vpi.
6034 * NULL - No vport with the matching @vpi found
6035 * Otherwise - Address to the vport with the matching @vpi.
6038 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
6040 struct lpfc_vport *vport;
6041 unsigned long flags;
6044 /* The physical ports are always vpi 0 - translate is unnecessary. */
6047 * Translate the physical vpi to the logical vpi. The
6048 * vport stores the logical vpi.
6050 for (i = 0; i < phba->max_vpi; i++) {
6051 if (vpi == phba->vpi_ids[i])
6055 if (i >= phba->max_vpi) {
6056 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
6057 "2936 Could not find Vport mapped "
6058 "to vpi %d\n", vpi);
6063 spin_lock_irqsave(&phba->port_list_lock, flags);
6064 list_for_each_entry(vport, &phba->port_list, listentry) {
6065 if (vport->vpi == i) {
6066 spin_unlock_irqrestore(&phba->port_list_lock, flags);
6070 spin_unlock_irqrestore(&phba->port_list_lock, flags);
6074 struct lpfc_nodelist *
6075 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did)
6077 struct lpfc_nodelist *ndlp;
6078 int rpi = LPFC_RPI_ALLOC_ERROR;
6080 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
6081 rpi = lpfc_sli4_alloc_rpi(vport->phba);
6082 if (rpi == LPFC_RPI_ALLOC_ERROR)
6086 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
6088 if (vport->phba->sli_rev == LPFC_SLI_REV4)
6089 lpfc_sli4_free_rpi(vport->phba, rpi);
6093 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
6095 lpfc_initialize_node(vport, ndlp, did);
6096 INIT_LIST_HEAD(&ndlp->nlp_listp);
6097 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
6098 ndlp->nlp_rpi = rpi;
6099 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
6100 "0007 rpi:%x DID:%x flg:%x refcnt:%d "
6101 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
6103 kref_read(&ndlp->kref),
6104 ndlp->nlp_usg_map, ndlp);
6106 ndlp->active_rrqs_xri_bitmap =
6107 mempool_alloc(vport->phba->active_rrq_pool,
6109 if (ndlp->active_rrqs_xri_bitmap)
6110 memset(ndlp->active_rrqs_xri_bitmap, 0,
6111 ndlp->phba->cfg_rrq_xri_bitmap_sz);
6116 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
6117 "node init: did:x%x",
6118 ndlp->nlp_DID, 0, 0);
6123 /* This routine releases all resources associated with a specifc NPort's ndlp
6124 * and mempool_free's the nodelist.
6127 lpfc_nlp_release(struct kref *kref)
6129 struct lpfc_hba *phba;
6130 unsigned long flags;
6131 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
6134 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6135 "node release: did:x%x flg:x%x type:x%x",
6136 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
6138 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
6139 "0279 lpfc_nlp_release: ndlp:x%p did %x "
6140 "usgmap:x%x refcnt:%d rpi:%x\n",
6141 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map,
6142 kref_read(&ndlp->kref), ndlp->nlp_rpi);
6144 /* remove ndlp from action. */
6145 lpfc_nlp_remove(ndlp->vport, ndlp);
6147 /* clear the ndlp active flag for all release cases */
6149 spin_lock_irqsave(&phba->ndlp_lock, flags);
6150 NLP_CLR_NODE_ACT(ndlp);
6151 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6152 if (phba->sli_rev == LPFC_SLI_REV4)
6153 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
6155 /* free ndlp memory for final ndlp release */
6156 if (NLP_CHK_FREE_REQ(ndlp)) {
6157 kfree(ndlp->lat_data);
6158 if (phba->sli_rev == LPFC_SLI_REV4)
6159 mempool_free(ndlp->active_rrqs_xri_bitmap,
6160 ndlp->phba->active_rrq_pool);
6161 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
6165 /* This routine bumps the reference count for a ndlp structure to ensure
6166 * that one discovery thread won't free a ndlp while another discovery thread
6169 struct lpfc_nodelist *
6170 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
6172 struct lpfc_hba *phba;
6173 unsigned long flags;
6176 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6177 "node get: did:x%x flg:x%x refcnt:x%x",
6178 ndlp->nlp_DID, ndlp->nlp_flag,
6179 kref_read(&ndlp->kref));
6180 /* The check of ndlp usage to prevent incrementing the
6181 * ndlp reference count that is in the process of being
6185 spin_lock_irqsave(&phba->ndlp_lock, flags);
6186 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
6187 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6188 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6189 "0276 lpfc_nlp_get: ndlp:x%p "
6190 "usgmap:x%x refcnt:%d\n",
6191 (void *)ndlp, ndlp->nlp_usg_map,
6192 kref_read(&ndlp->kref));
6195 kref_get(&ndlp->kref);
6196 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6201 /* This routine decrements the reference count for a ndlp structure. If the
6202 * count goes to 0, this indicates the the associated nodelist should be
6203 * freed. Returning 1 indicates the ndlp resource has been released; on the
6204 * other hand, returning 0 indicates the ndlp resource has not been released
6208 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
6210 struct lpfc_hba *phba;
6211 unsigned long flags;
6216 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6217 "node put: did:x%x flg:x%x refcnt:x%x",
6218 ndlp->nlp_DID, ndlp->nlp_flag,
6219 kref_read(&ndlp->kref));
6221 spin_lock_irqsave(&phba->ndlp_lock, flags);
6222 /* Check the ndlp memory free acknowledge flag to avoid the
6223 * possible race condition that kref_put got invoked again
6224 * after previous one has done ndlp memory free.
6226 if (NLP_CHK_FREE_ACK(ndlp)) {
6227 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6228 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6229 "0274 lpfc_nlp_put: ndlp:x%p "
6230 "usgmap:x%x refcnt:%d\n",
6231 (void *)ndlp, ndlp->nlp_usg_map,
6232 kref_read(&ndlp->kref));
6235 /* Check the ndlp inactivate log flag to avoid the possible
6236 * race condition that kref_put got invoked again after ndlp
6237 * is already in inactivating state.
6239 if (NLP_CHK_IACT_REQ(ndlp)) {
6240 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6241 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6242 "0275 lpfc_nlp_put: ndlp:x%p "
6243 "usgmap:x%x refcnt:%d\n",
6244 (void *)ndlp, ndlp->nlp_usg_map,
6245 kref_read(&ndlp->kref));
6248 /* For last put, mark the ndlp usage flags to make sure no
6249 * other kref_get and kref_put on the same ndlp shall get
6250 * in between the process when the final kref_put has been
6251 * invoked on this ndlp.
6253 if (kref_read(&ndlp->kref) == 1) {
6254 /* Indicate ndlp is put to inactive state. */
6255 NLP_SET_IACT_REQ(ndlp);
6256 /* Acknowledge ndlp memory free has been seen. */
6257 if (NLP_CHK_FREE_REQ(ndlp))
6258 NLP_SET_FREE_ACK(ndlp);
6260 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6261 /* Note, the kref_put returns 1 when decrementing a reference
6262 * count that was 1, it invokes the release callback function,
6263 * but it still left the reference count as 1 (not actually
6264 * performs the last decrementation). Otherwise, it actually
6265 * decrements the reference count and returns 0.
6267 return kref_put(&ndlp->kref, lpfc_nlp_release);
6270 /* This routine free's the specified nodelist if it is not in use
6271 * by any other discovery thread. This routine returns 1 if the
6272 * ndlp has been freed. A return value of 0 indicates the ndlp is
6273 * not yet been released.
6276 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
6278 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6279 "node not used: did:x%x flg:x%x refcnt:x%x",
6280 ndlp->nlp_DID, ndlp->nlp_flag,
6281 kref_read(&ndlp->kref));
6282 if (kref_read(&ndlp->kref) == 1)
6283 if (lpfc_nlp_put(ndlp))
6289 * lpfc_fcf_inuse - Check if FCF can be unregistered.
6290 * @phba: Pointer to hba context object.
6292 * This function iterate through all FC nodes associated
6293 * will all vports to check if there is any node with
6294 * fc_rports associated with it. If there is an fc_rport
6295 * associated with the node, then the node is either in
6296 * discovered state or its devloss_timer is pending.
6299 lpfc_fcf_inuse(struct lpfc_hba *phba)
6301 struct lpfc_vport **vports;
6303 struct lpfc_nodelist *ndlp;
6304 struct Scsi_Host *shost;
6306 vports = lpfc_create_vport_work_array(phba);
6308 /* If driver cannot allocate memory, indicate fcf is in use */
6312 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6313 shost = lpfc_shost_from_vport(vports[i]);
6314 spin_lock_irq(shost->host_lock);
6316 * IF the CVL_RCVD bit is not set then we have sent the
6318 * If dev_loss fires while we are waiting we do not want to
6321 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
6322 spin_unlock_irq(shost->host_lock);
6326 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
6327 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
6328 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
6330 spin_unlock_irq(shost->host_lock);
6332 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
6334 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
6335 "2624 RPI %x DID %x flag %x "
6336 "still logged in\n",
6337 ndlp->nlp_rpi, ndlp->nlp_DID,
6341 spin_unlock_irq(shost->host_lock);
6344 lpfc_destroy_vport_work_array(phba, vports);
6349 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
6350 * @phba: Pointer to hba context object.
6351 * @mboxq: Pointer to mailbox object.
6353 * This function frees memory associated with the mailbox command.
6356 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6358 struct lpfc_vport *vport = mboxq->vport;
6359 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6361 if (mboxq->u.mb.mbxStatus) {
6362 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6363 "2555 UNREG_VFI mbxStatus error x%x "
6365 mboxq->u.mb.mbxStatus, vport->port_state);
6367 spin_lock_irq(shost->host_lock);
6368 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
6369 spin_unlock_irq(shost->host_lock);
6370 mempool_free(mboxq, phba->mbox_mem_pool);
6375 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
6376 * @phba: Pointer to hba context object.
6377 * @mboxq: Pointer to mailbox object.
6379 * This function frees memory associated with the mailbox command.
6382 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6384 struct lpfc_vport *vport = mboxq->vport;
6386 if (mboxq->u.mb.mbxStatus) {
6387 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6388 "2550 UNREG_FCFI mbxStatus error x%x "
6390 mboxq->u.mb.mbxStatus, vport->port_state);
6392 mempool_free(mboxq, phba->mbox_mem_pool);
6397 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
6398 * @phba: Pointer to hba context object.
6400 * This function prepare the HBA for unregistering the currently registered
6401 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
6405 lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
6407 struct lpfc_vport **vports;
6408 struct lpfc_nodelist *ndlp;
6409 struct Scsi_Host *shost;
6412 /* Unregister RPIs */
6413 if (lpfc_fcf_inuse(phba))
6414 lpfc_unreg_hba_rpis(phba);
6416 /* At this point, all discovery is aborted */
6417 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
6419 /* Unregister VPIs */
6420 vports = lpfc_create_vport_work_array(phba);
6421 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
6422 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6423 /* Stop FLOGI/FDISC retries */
6424 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
6426 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
6427 lpfc_cleanup_pending_mbox(vports[i]);
6428 if (phba->sli_rev == LPFC_SLI_REV4)
6429 lpfc_sli4_unreg_all_rpis(vports[i]);
6430 lpfc_mbx_unreg_vpi(vports[i]);
6431 shost = lpfc_shost_from_vport(vports[i]);
6432 spin_lock_irq(shost->host_lock);
6433 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6434 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
6435 spin_unlock_irq(shost->host_lock);
6437 lpfc_destroy_vport_work_array(phba, vports);
6438 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) {
6439 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
6441 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
6442 lpfc_cleanup_pending_mbox(phba->pport);
6443 if (phba->sli_rev == LPFC_SLI_REV4)
6444 lpfc_sli4_unreg_all_rpis(phba->pport);
6445 lpfc_mbx_unreg_vpi(phba->pport);
6446 shost = lpfc_shost_from_vport(phba->pport);
6447 spin_lock_irq(shost->host_lock);
6448 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6449 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED;
6450 spin_unlock_irq(shost->host_lock);
6453 /* Cleanup any outstanding ELS commands */
6454 lpfc_els_flush_all_cmd(phba);
6456 /* Unregister the physical port VFI */
6457 rc = lpfc_issue_unreg_vfi(phba->pport);
6462 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
6463 * @phba: Pointer to hba context object.
6465 * This function issues synchronous unregister FCF mailbox command to HBA to
6466 * unregister the currently registered FCF record. The driver does not reset
6467 * the driver FCF usage state flags.
6469 * Return 0 if successfully issued, none-zero otherwise.
6472 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
6477 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6479 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6480 "2551 UNREG_FCFI mbox allocation failed"
6481 "HBA state x%x\n", phba->pport->port_state);
6484 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
6485 mbox->vport = phba->pport;
6486 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
6487 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6489 if (rc == MBX_NOT_FINISHED) {
6490 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6491 "2552 Unregister FCFI command failed rc x%x "
6493 rc, phba->pport->port_state);
6500 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
6501 * @phba: Pointer to hba context object.
6503 * This function unregisters the currently reigstered FCF. This function
6504 * also tries to find another FCF for discovery by rescan the HBA FCF table.
6507 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
6511 /* Preparation for unregistering fcf */
6512 rc = lpfc_unregister_fcf_prep(phba);
6514 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6515 "2748 Failed to prepare for unregistering "
6516 "HBA's FCF record: rc=%d\n", rc);
6520 /* Now, unregister FCF record and reset HBA FCF state */
6521 rc = lpfc_sli4_unregister_fcf(phba);
6524 /* Reset HBA FCF states after successful unregister FCF */
6525 phba->fcf.fcf_flag = 0;
6526 phba->fcf.current_rec.flag = 0;
6529 * If driver is not unloading, check if there is any other
6530 * FCF record that can be used for discovery.
6532 if ((phba->pport->load_flag & FC_UNLOADING) ||
6533 (phba->link_state < LPFC_LINK_UP))
6536 /* This is considered as the initial FCF discovery scan */
6537 spin_lock_irq(&phba->hbalock);
6538 phba->fcf.fcf_flag |= FCF_INIT_DISC;
6539 spin_unlock_irq(&phba->hbalock);
6541 /* Reset FCF roundrobin bmask for new discovery */
6542 lpfc_sli4_clear_fcf_rr_bmask(phba);
6544 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6547 spin_lock_irq(&phba->hbalock);
6548 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
6549 spin_unlock_irq(&phba->hbalock);
6550 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6551 "2553 lpfc_unregister_unused_fcf failed "
6552 "to read FCF record HBA state x%x\n",
6553 phba->pport->port_state);
6558 * lpfc_unregister_fcf - Unregister the currently registered fcf record
6559 * @phba: Pointer to hba context object.
6561 * This function just unregisters the currently reigstered FCF. It does not
6562 * try to find another FCF for discovery.
6565 lpfc_unregister_fcf(struct lpfc_hba *phba)
6569 /* Preparation for unregistering fcf */
6570 rc = lpfc_unregister_fcf_prep(phba);
6572 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6573 "2749 Failed to prepare for unregistering "
6574 "HBA's FCF record: rc=%d\n", rc);
6578 /* Now, unregister FCF record and reset HBA FCF state */
6579 rc = lpfc_sli4_unregister_fcf(phba);
6582 /* Set proper HBA FCF states after successful unregister FCF */
6583 spin_lock_irq(&phba->hbalock);
6584 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
6585 spin_unlock_irq(&phba->hbalock);
6589 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
6590 * @phba: Pointer to hba context object.
6592 * This function check if there are any connected remote port for the FCF and
6593 * if all the devices are disconnected, this function unregister FCFI.
6594 * This function also tries to use another FCF for discovery.
6597 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
6600 * If HBA is not running in FIP mode, if HBA does not support
6601 * FCoE, if FCF discovery is ongoing, or if FCF has not been
6602 * registered, do nothing.
6604 spin_lock_irq(&phba->hbalock);
6605 if (!(phba->hba_flag & HBA_FCOE_MODE) ||
6606 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
6607 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
6608 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
6609 (phba->pport->port_state == LPFC_FLOGI)) {
6610 spin_unlock_irq(&phba->hbalock);
6613 spin_unlock_irq(&phba->hbalock);
6615 if (lpfc_fcf_inuse(phba))
6618 lpfc_unregister_fcf_rescan(phba);
6622 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
6623 * @phba: Pointer to hba context object.
6624 * @buff: Buffer containing the FCF connection table as in the config
6626 * This function create driver data structure for the FCF connection
6627 * record table read from config region 23.
6630 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
6633 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6634 struct lpfc_fcf_conn_hdr *conn_hdr;
6635 struct lpfc_fcf_conn_rec *conn_rec;
6636 uint32_t record_count;
6639 /* Free the current connect table */
6640 list_for_each_entry_safe(conn_entry, next_conn_entry,
6641 &phba->fcf_conn_rec_list, list) {
6642 list_del_init(&conn_entry->list);
6646 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
6647 record_count = conn_hdr->length * sizeof(uint32_t)/
6648 sizeof(struct lpfc_fcf_conn_rec);
6650 conn_rec = (struct lpfc_fcf_conn_rec *)
6651 (buff + sizeof(struct lpfc_fcf_conn_hdr));
6653 for (i = 0; i < record_count; i++) {
6654 if (!(conn_rec[i].flags & FCFCNCT_VALID))
6656 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
6659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6660 "2566 Failed to allocate connection"
6665 memcpy(&conn_entry->conn_rec, &conn_rec[i],
6666 sizeof(struct lpfc_fcf_conn_rec));
6667 list_add_tail(&conn_entry->list,
6668 &phba->fcf_conn_rec_list);
6671 if (!list_empty(&phba->fcf_conn_rec_list)) {
6673 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list,
6675 conn_rec = &conn_entry->conn_rec;
6676 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6677 "3345 FCF connection list rec[%02d]: "
6678 "flags:x%04x, vtag:x%04x, "
6679 "fabric_name:x%02x:%02x:%02x:%02x:"
6680 "%02x:%02x:%02x:%02x, "
6681 "switch_name:x%02x:%02x:%02x:%02x:"
6682 "%02x:%02x:%02x:%02x\n", i++,
6683 conn_rec->flags, conn_rec->vlan_tag,
6684 conn_rec->fabric_name[0],
6685 conn_rec->fabric_name[1],
6686 conn_rec->fabric_name[2],
6687 conn_rec->fabric_name[3],
6688 conn_rec->fabric_name[4],
6689 conn_rec->fabric_name[5],
6690 conn_rec->fabric_name[6],
6691 conn_rec->fabric_name[7],
6692 conn_rec->switch_name[0],
6693 conn_rec->switch_name[1],
6694 conn_rec->switch_name[2],
6695 conn_rec->switch_name[3],
6696 conn_rec->switch_name[4],
6697 conn_rec->switch_name[5],
6698 conn_rec->switch_name[6],
6699 conn_rec->switch_name[7]);
6705 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6706 * @phba: Pointer to hba context object.
6707 * @buff: Buffer containing the FCoE parameter data structure.
6709 * This function update driver data structure with config
6710 * parameters read from config region 23.
6713 lpfc_read_fcoe_param(struct lpfc_hba *phba,
6716 struct lpfc_fip_param_hdr *fcoe_param_hdr;
6717 struct lpfc_fcoe_params *fcoe_param;
6719 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
6721 fcoe_param = (struct lpfc_fcoe_params *)
6722 (buff + sizeof(struct lpfc_fip_param_hdr));
6724 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
6725 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
6728 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
6729 phba->valid_vlan = 1;
6730 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
6734 phba->fc_map[0] = fcoe_param->fc_map[0];
6735 phba->fc_map[1] = fcoe_param->fc_map[1];
6736 phba->fc_map[2] = fcoe_param->fc_map[2];
6741 * lpfc_get_rec_conf23 - Get a record type in config region data.
6742 * @buff: Buffer containing config region 23 data.
6743 * @size: Size of the data buffer.
6744 * @rec_type: Record type to be searched.
6746 * This function searches config region data to find the beginning
6747 * of the record specified by record_type. If record found, this
6748 * function return pointer to the record else return NULL.
6751 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
6753 uint32_t offset = 0, rec_length;
6755 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
6756 (size < sizeof(uint32_t)))
6759 rec_length = buff[offset + 1];
6762 * One TLV record has one word header and number of data words
6763 * specified in the rec_length field of the record header.
6765 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
6767 if (buff[offset] == rec_type)
6768 return &buff[offset];
6770 if (buff[offset] == LPFC_REGION23_LAST_REC)
6773 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
6774 rec_length = buff[offset + 1];
6780 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6781 * @phba: Pointer to lpfc_hba data structure.
6782 * @buff: Buffer containing config region 23 data.
6783 * @size: Size of the data buffer.
6785 * This function parses the FCoE config parameters in config region 23 and
6786 * populate driver data structure with the parameters.
6789 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
6793 uint32_t offset = 0;
6797 * If data size is less than 2 words signature and version cannot be
6800 if (size < 2*sizeof(uint32_t))
6803 /* Check the region signature first */
6804 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
6805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6806 "2567 Config region 23 has bad signature\n");
6812 /* Check the data structure version */
6813 if (buff[offset] != LPFC_REGION23_VERSION) {
6814 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6815 "2568 Config region 23 has bad version\n");
6820 /* Read FCoE param record */
6821 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6822 size - offset, FCOE_PARAM_TYPE);
6824 lpfc_read_fcoe_param(phba, rec_ptr);
6826 /* Read FCF connection table */
6827 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6828 size - offset, FCOE_CONN_TBL_TYPE);
6830 lpfc_read_fcf_conn_tbl(phba, rec_ptr);