1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 *******************************************************************/
24 #include <linux/blkdev.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
27 #include <linux/pci.h>
28 #include <linux/kthread.h>
29 #include <linux/interrupt.h>
30 #include <linux/lockdep.h>
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_device.h>
34 #include <scsi/scsi_host.h>
35 #include <scsi/scsi_transport_fc.h>
36 #include <scsi/fc/fc_fs.h>
38 #include <linux/nvme-fc-driver.h>
43 #include "lpfc_disc.h"
45 #include "lpfc_sli4.h"
47 #include "lpfc_scsi.h"
48 #include "lpfc_nvme.h"
49 #include "lpfc_logmsg.h"
50 #include "lpfc_crtn.h"
51 #include "lpfc_vport.h"
52 #include "lpfc_debugfs.h"
54 /* AlpaArray for assignment of scsid for scan-down and bind_method */
55 static uint8_t lpfcAlpaArray[] = {
56 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
57 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
58 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
59 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
60 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
61 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
62 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
63 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
64 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
65 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
66 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
67 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
68 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
71 static void lpfc_disc_timeout_handler(struct lpfc_vport *);
72 static void lpfc_disc_flush_list(struct lpfc_vport *vport);
73 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
74 static int lpfc_fcf_inuse(struct lpfc_hba *);
77 lpfc_terminate_rport_io(struct fc_rport *rport)
79 struct lpfc_rport_data *rdata;
80 struct lpfc_nodelist * ndlp;
81 struct lpfc_hba *phba;
83 rdata = rport->dd_data;
86 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
87 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
88 printk(KERN_ERR "Cannot find remote node"
89 " to terminate I/O Data x%x\n",
96 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
97 "rport terminate: sid:x%x did:x%x flg:x%x",
98 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
100 if (ndlp->nlp_sid != NLP_NO_SID) {
101 lpfc_sli_abort_iocb(ndlp->vport,
102 &phba->sli.sli3_ring[LPFC_FCP_RING],
103 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
108 * This function will be called when dev_loss_tmo fire.
111 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
113 struct lpfc_rport_data *rdata;
114 struct lpfc_nodelist * ndlp;
115 struct lpfc_vport *vport;
116 struct Scsi_Host *shost;
117 struct lpfc_hba *phba;
118 struct lpfc_work_evt *evtp;
122 rdata = rport->dd_data;
124 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
130 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
131 "rport devlosscb: sid:x%x did:x%x flg:x%x",
132 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
134 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
135 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n",
136 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
138 /* Don't defer this if we are in the process of deleting the vport
139 * or unloading the driver. The unload will cleanup the node
140 * appropriately we just need to cleanup the ndlp rport info here.
142 if (vport->load_flag & FC_UNLOADING) {
143 put_node = rdata->pnode != NULL;
144 put_rport = ndlp->rport != NULL;
150 put_device(&rport->dev);
154 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
157 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn))
158 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
159 "6789 rport name %llx != node port name %llx",
161 wwn_to_u64(ndlp->nlp_portname.u.wwn));
163 evtp = &ndlp->dev_loss_evt;
165 if (!list_empty(&evtp->evt_listp)) {
166 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
167 "6790 rport name %llx dev_loss_evt pending",
172 shost = lpfc_shost_from_vport(vport);
173 spin_lock_irq(shost->host_lock);
174 ndlp->nlp_flag |= NLP_IN_DEV_LOSS;
175 spin_unlock_irq(shost->host_lock);
177 /* We need to hold the node by incrementing the reference
178 * count until this queued work is done
180 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
182 spin_lock_irq(&phba->hbalock);
183 if (evtp->evt_arg1) {
184 evtp->evt = LPFC_EVT_DEV_LOSS;
185 list_add_tail(&evtp->evt_listp, &phba->work_list);
186 lpfc_worker_wake_up(phba);
188 spin_unlock_irq(&phba->hbalock);
194 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
195 * @ndlp: Pointer to remote node object.
197 * This function is called from the worker thread when devloss timeout timer
198 * expires. For SLI4 host, this routine shall return 1 when at lease one
199 * remote node, including this @ndlp, is still in use of FCF; otherwise, this
200 * routine shall return 0 when there is no remote node is still in use of FCF
201 * when devloss timeout happened to this @ndlp.
204 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
206 struct lpfc_rport_data *rdata;
207 struct fc_rport *rport;
208 struct lpfc_vport *vport;
209 struct lpfc_hba *phba;
210 struct Scsi_Host *shost;
218 shost = lpfc_shost_from_vport(vport);
220 spin_lock_irq(shost->host_lock);
221 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
222 spin_unlock_irq(shost->host_lock);
227 name = (uint8_t *) &ndlp->nlp_portname;
230 if (phba->sli_rev == LPFC_SLI_REV4)
231 fcf_inuse = lpfc_fcf_inuse(phba);
233 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
234 "rport devlosstmo:did:x%x type:x%x id:x%x",
235 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
237 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
238 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n",
239 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
242 * lpfc_nlp_remove if reached with dangling rport drops the
243 * reference. To make sure that does not happen clear rport
244 * pointer in ndlp before lpfc_nlp_put.
246 rdata = rport->dd_data;
248 /* Don't defer this if we are in the process of deleting the vport
249 * or unloading the driver. The unload will cleanup the node
250 * appropriately we just need to cleanup the ndlp rport info here.
252 if (vport->load_flag & FC_UNLOADING) {
253 if (ndlp->nlp_sid != NLP_NO_SID) {
254 /* flush the target */
255 lpfc_sli_abort_iocb(vport,
256 &phba->sli.sli3_ring[LPFC_FCP_RING],
257 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
259 put_node = rdata->pnode != NULL;
264 put_device(&rport->dev);
269 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
270 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
271 "0284 Devloss timeout Ignored on "
272 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
274 *name, *(name+1), *(name+2), *(name+3),
275 *(name+4), *(name+5), *(name+6), *(name+7),
280 put_node = rdata->pnode != NULL;
285 put_device(&rport->dev);
287 if (ndlp->nlp_type & NLP_FABRIC)
290 if (ndlp->nlp_sid != NLP_NO_SID) {
292 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING],
293 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
297 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
298 "0203 Devloss timeout on "
299 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
300 "NPort x%06x Data: x%x x%x x%x\n",
301 *name, *(name+1), *(name+2), *(name+3),
302 *(name+4), *(name+5), *(name+6), *(name+7),
303 ndlp->nlp_DID, ndlp->nlp_flag,
304 ndlp->nlp_state, ndlp->nlp_rpi);
306 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
307 "0204 Devloss timeout on "
308 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
309 "NPort x%06x Data: x%x x%x x%x\n",
310 *name, *(name+1), *(name+2), *(name+3),
311 *(name+4), *(name+5), *(name+6), *(name+7),
312 ndlp->nlp_DID, ndlp->nlp_flag,
313 ndlp->nlp_state, ndlp->nlp_rpi);
316 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
317 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
318 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
319 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) &&
320 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE))
321 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
327 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
328 * @phba: Pointer to hba context object.
329 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
330 * @nlp_did: remote node identifer with devloss timeout.
332 * This function is called from the worker thread after invoking devloss
333 * timeout handler and releasing the reference count for the ndlp with
334 * which the devloss timeout was handled for SLI4 host. For the devloss
335 * timeout of the last remote node which had been in use of FCF, when this
336 * routine is invoked, it shall be guaranteed that none of the remote are
337 * in-use of FCF. When devloss timeout to the last remote using the FCF,
338 * if the FIP engine is neither in FCF table scan process nor roundrobin
339 * failover process, the in-use FCF shall be unregistered. If the FIP
340 * engine is in FCF discovery process, the devloss timeout state shall
341 * be set for either the FCF table scan process or roundrobin failover
342 * process to unregister the in-use FCF.
345 lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
348 /* If devloss timeout happened to a remote node when FCF had no
349 * longer been in-use, do nothing.
354 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
355 spin_lock_irq(&phba->hbalock);
356 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
357 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
358 spin_unlock_irq(&phba->hbalock);
361 phba->hba_flag |= HBA_DEVLOSS_TMO;
362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
363 "2847 Last remote node (x%x) using "
364 "FCF devloss tmo\n", nlp_did);
366 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
367 spin_unlock_irq(&phba->hbalock);
368 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
369 "2868 Devloss tmo to FCF rediscovery "
373 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
374 spin_unlock_irq(&phba->hbalock);
375 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
376 "2869 Devloss tmo to idle FIP engine, "
377 "unreg in-use FCF and rescan.\n");
378 /* Unregister in-use FCF and rescan */
379 lpfc_unregister_fcf_rescan(phba);
382 spin_unlock_irq(&phba->hbalock);
383 if (phba->hba_flag & FCF_TS_INPROG)
384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
385 "2870 FCF table scan in progress\n");
386 if (phba->hba_flag & FCF_RR_INPROG)
387 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
388 "2871 FLOGI roundrobin FCF failover "
391 lpfc_unregister_unused_fcf(phba);
395 * lpfc_alloc_fast_evt - Allocates data structure for posting event
396 * @phba: Pointer to hba context object.
398 * This function is called from the functions which need to post
399 * events from interrupt context. This function allocates data
400 * structure required for posting event. It also keeps track of
401 * number of events pending and prevent event storm when there are
404 struct lpfc_fast_path_event *
405 lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
406 struct lpfc_fast_path_event *ret;
408 /* If there are lot of fast event do not exhaust memory due to this */
409 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
412 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
415 atomic_inc(&phba->fast_event_count);
416 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
417 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
423 * lpfc_free_fast_evt - Frees event data structure
424 * @phba: Pointer to hba context object.
425 * @evt: Event object which need to be freed.
427 * This function frees the data structure required for posting
431 lpfc_free_fast_evt(struct lpfc_hba *phba,
432 struct lpfc_fast_path_event *evt) {
434 atomic_dec(&phba->fast_event_count);
439 * lpfc_send_fastpath_evt - Posts events generated from fast path
440 * @phba: Pointer to hba context object.
441 * @evtp: Event data structure.
443 * This function is called from worker thread, when the interrupt
444 * context need to post an event. This function posts the event
445 * to fc transport netlink interface.
448 lpfc_send_fastpath_evt(struct lpfc_hba *phba,
449 struct lpfc_work_evt *evtp)
451 unsigned long evt_category, evt_sub_category;
452 struct lpfc_fast_path_event *fast_evt_data;
454 uint32_t evt_data_size;
455 struct Scsi_Host *shost;
457 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
460 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
461 evt_sub_category = (unsigned long) fast_evt_data->un.
462 fabric_evt.subcategory;
463 shost = lpfc_shost_from_vport(fast_evt_data->vport);
464 if (evt_category == FC_REG_FABRIC_EVENT) {
465 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
466 evt_data = (char *) &fast_evt_data->un.read_check_error;
467 evt_data_size = sizeof(fast_evt_data->un.
469 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
470 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
471 evt_data = (char *) &fast_evt_data->un.fabric_evt;
472 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
474 lpfc_free_fast_evt(phba, fast_evt_data);
477 } else if (evt_category == FC_REG_SCSI_EVENT) {
478 switch (evt_sub_category) {
479 case LPFC_EVENT_QFULL:
480 case LPFC_EVENT_DEVBSY:
481 evt_data = (char *) &fast_evt_data->un.scsi_evt;
482 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
484 case LPFC_EVENT_CHECK_COND:
485 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
486 evt_data_size = sizeof(fast_evt_data->un.
489 case LPFC_EVENT_VARQUEDEPTH:
490 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
491 evt_data_size = sizeof(fast_evt_data->un.
495 lpfc_free_fast_evt(phba, fast_evt_data);
499 lpfc_free_fast_evt(phba, fast_evt_data);
503 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
504 fc_host_post_vendor_event(shost,
505 fc_get_event_number(),
510 lpfc_free_fast_evt(phba, fast_evt_data);
515 lpfc_work_list_done(struct lpfc_hba *phba)
517 struct lpfc_work_evt *evtp = NULL;
518 struct lpfc_nodelist *ndlp;
523 spin_lock_irq(&phba->hbalock);
524 while (!list_empty(&phba->work_list)) {
525 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
527 spin_unlock_irq(&phba->hbalock);
530 case LPFC_EVT_ELS_RETRY:
531 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
532 lpfc_els_retry_delay_handler(ndlp);
533 free_evt = 0; /* evt is part of ndlp */
534 /* decrement the node reference count held
535 * for this queued work
539 case LPFC_EVT_DEV_LOSS:
540 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
541 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
543 /* decrement the node reference count held for
546 nlp_did = ndlp->nlp_DID;
548 if (phba->sli_rev == LPFC_SLI_REV4)
549 lpfc_sli4_post_dev_loss_tmo_handler(phba,
553 case LPFC_EVT_ONLINE:
554 if (phba->link_state < LPFC_LINK_DOWN)
555 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
557 *(int *) (evtp->evt_arg1) = 0;
558 complete((struct completion *)(evtp->evt_arg2));
560 case LPFC_EVT_OFFLINE_PREP:
561 if (phba->link_state >= LPFC_LINK_DOWN)
562 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
563 *(int *)(evtp->evt_arg1) = 0;
564 complete((struct completion *)(evtp->evt_arg2));
566 case LPFC_EVT_OFFLINE:
568 lpfc_sli_brdrestart(phba);
569 *(int *)(evtp->evt_arg1) =
570 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
571 lpfc_unblock_mgmt_io(phba);
572 complete((struct completion *)(evtp->evt_arg2));
574 case LPFC_EVT_WARM_START:
576 lpfc_reset_barrier(phba);
577 lpfc_sli_brdreset(phba);
578 lpfc_hba_down_post(phba);
579 *(int *)(evtp->evt_arg1) =
580 lpfc_sli_brdready(phba, HS_MBRDY);
581 lpfc_unblock_mgmt_io(phba);
582 complete((struct completion *)(evtp->evt_arg2));
586 *(int *)(evtp->evt_arg1)
587 = (phba->pport->stopped)
588 ? 0 : lpfc_sli_brdkill(phba);
589 lpfc_unblock_mgmt_io(phba);
590 complete((struct completion *)(evtp->evt_arg2));
592 case LPFC_EVT_FASTPATH_MGMT_EVT:
593 lpfc_send_fastpath_evt(phba, evtp);
596 case LPFC_EVT_RESET_HBA:
597 if (!(phba->pport->load_flag & FC_UNLOADING))
598 lpfc_reset_hba(phba);
603 spin_lock_irq(&phba->hbalock);
605 spin_unlock_irq(&phba->hbalock);
610 lpfc_work_done(struct lpfc_hba *phba)
612 struct lpfc_sli_ring *pring;
613 uint32_t ha_copy, status, control, work_port_events;
614 struct lpfc_vport **vports;
615 struct lpfc_vport *vport;
618 spin_lock_irq(&phba->hbalock);
619 ha_copy = phba->work_ha;
621 spin_unlock_irq(&phba->hbalock);
623 /* First, try to post the next mailbox command to SLI4 device */
624 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
625 lpfc_sli4_post_async_mbox(phba);
627 if (ha_copy & HA_ERATT)
628 /* Handle the error attention event */
629 lpfc_handle_eratt(phba);
631 if (ha_copy & HA_MBATT)
632 lpfc_sli_handle_mb_event(phba);
634 if (ha_copy & HA_LATT)
635 lpfc_handle_latt(phba);
637 /* Process SLI4 events */
638 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
639 if (phba->hba_flag & HBA_RRQ_ACTIVE)
640 lpfc_handle_rrq_active(phba);
641 if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
642 lpfc_sli4_fcp_xri_abort_event_proc(phba);
643 if (phba->hba_flag & NVME_XRI_ABORT_EVENT)
644 lpfc_sli4_nvme_xri_abort_event_proc(phba);
645 if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
646 lpfc_sli4_els_xri_abort_event_proc(phba);
647 if (phba->hba_flag & ASYNC_EVENT)
648 lpfc_sli4_async_event_proc(phba);
649 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
650 spin_lock_irq(&phba->hbalock);
651 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
652 spin_unlock_irq(&phba->hbalock);
653 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
655 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
656 lpfc_sli4_fcf_redisc_event_proc(phba);
659 vports = lpfc_create_vport_work_array(phba);
661 for (i = 0; i <= phba->max_vports; i++) {
663 * We could have no vports in array if unloading, so if
664 * this happens then just use the pport
666 if (vports[i] == NULL && i == 0)
672 spin_lock_irq(&vport->work_port_lock);
673 work_port_events = vport->work_port_events;
674 vport->work_port_events &= ~work_port_events;
675 spin_unlock_irq(&vport->work_port_lock);
676 if (work_port_events & WORKER_DISC_TMO)
677 lpfc_disc_timeout_handler(vport);
678 if (work_port_events & WORKER_ELS_TMO)
679 lpfc_els_timeout_handler(vport);
680 if (work_port_events & WORKER_HB_TMO)
681 lpfc_hb_timeout_handler(phba);
682 if (work_port_events & WORKER_MBOX_TMO)
683 lpfc_mbox_timeout_handler(phba);
684 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
685 lpfc_unblock_fabric_iocbs(phba);
686 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
687 lpfc_ramp_down_queue_handler(phba);
688 if (work_port_events & WORKER_DELAYED_DISC_TMO)
689 lpfc_delayed_disc_timeout_handler(vport);
691 lpfc_destroy_vport_work_array(phba, vports);
693 pring = lpfc_phba_elsring(phba);
694 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
695 status >>= (4*LPFC_ELS_RING);
696 if (pring && (status & HA_RXMASK ||
697 pring->flag & LPFC_DEFERRED_RING_EVENT ||
698 phba->hba_flag & HBA_SP_QUEUE_EVT)) {
699 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
700 pring->flag |= LPFC_DEFERRED_RING_EVENT;
701 /* Preserve legacy behavior. */
702 if (!(phba->hba_flag & HBA_SP_QUEUE_EVT))
703 set_bit(LPFC_DATA_READY, &phba->data_flags);
705 if (phba->link_state >= LPFC_LINK_UP ||
706 phba->link_flag & LS_MDS_LOOPBACK) {
707 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
708 lpfc_sli_handle_slow_ring_event(phba, pring,
713 if ((phba->sli_rev == LPFC_SLI_REV4) &&
714 (!list_empty(&pring->txq)))
715 lpfc_drain_txq(phba);
717 * Turn on Ring interrupts
719 if (phba->sli_rev <= LPFC_SLI_REV3) {
720 spin_lock_irq(&phba->hbalock);
721 control = readl(phba->HCregaddr);
722 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
723 lpfc_debugfs_slow_ring_trc(phba,
724 "WRK Enable ring: cntl:x%x hacopy:x%x",
725 control, ha_copy, 0);
727 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
728 writel(control, phba->HCregaddr);
729 readl(phba->HCregaddr); /* flush */
731 lpfc_debugfs_slow_ring_trc(phba,
732 "WRK Ring ok: cntl:x%x hacopy:x%x",
733 control, ha_copy, 0);
735 spin_unlock_irq(&phba->hbalock);
738 lpfc_work_list_done(phba);
742 lpfc_do_work(void *p)
744 struct lpfc_hba *phba = p;
747 set_user_nice(current, MIN_NICE);
748 current->flags |= PF_NOFREEZE;
749 phba->data_flags = 0;
751 while (!kthread_should_stop()) {
752 /* wait and check worker queue activities */
753 rc = wait_event_interruptible(phba->work_waitq,
754 (test_and_clear_bit(LPFC_DATA_READY,
756 || kthread_should_stop()));
757 /* Signal wakeup shall terminate the worker thread */
759 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
760 "0433 Wakeup on signal: rc=x%x\n", rc);
764 /* Attend pending lpfc data processing */
765 lpfc_work_done(phba);
767 phba->worker_thread = NULL;
768 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
769 "0432 Worker thread stopped.\n");
774 * This is only called to handle FC worker events. Since this a rare
775 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
776 * embedding it in the IOCB.
779 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
782 struct lpfc_work_evt *evtp;
786 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
787 * be queued to worker thread for processing
789 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
793 evtp->evt_arg1 = arg1;
794 evtp->evt_arg2 = arg2;
797 spin_lock_irqsave(&phba->hbalock, flags);
798 list_add_tail(&evtp->evt_listp, &phba->work_list);
799 spin_unlock_irqrestore(&phba->hbalock, flags);
801 lpfc_worker_wake_up(phba);
807 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
809 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
810 struct lpfc_hba *phba = vport->phba;
811 struct lpfc_nodelist *ndlp, *next_ndlp;
813 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
814 if (!NLP_CHK_NODE_ACT(ndlp))
816 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
818 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
819 ((vport->port_type == LPFC_NPIV_PORT) &&
820 (ndlp->nlp_DID == NameServer_DID)))
821 lpfc_unreg_rpi(vport, ndlp);
823 /* Leave Fabric nodes alone on link down */
824 if ((phba->sli_rev < LPFC_SLI_REV4) &&
825 (!remove && ndlp->nlp_type & NLP_FABRIC))
827 lpfc_disc_state_machine(vport, ndlp, NULL,
830 : NLP_EVT_DEVICE_RECOVERY);
832 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
833 if (phba->sli_rev == LPFC_SLI_REV4)
834 lpfc_sli4_unreg_all_rpis(vport);
835 lpfc_mbx_unreg_vpi(vport);
836 spin_lock_irq(shost->host_lock);
837 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
838 spin_unlock_irq(shost->host_lock);
843 lpfc_port_link_failure(struct lpfc_vport *vport)
845 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
847 /* Cleanup any outstanding received buffers */
848 lpfc_cleanup_rcv_buffers(vport);
850 /* Cleanup any outstanding RSCN activity */
851 lpfc_els_flush_rscn(vport);
853 /* Cleanup any outstanding ELS commands */
854 lpfc_els_flush_cmd(vport);
856 lpfc_cleanup_rpis(vport, 0);
858 /* Turn off discovery timer if its running */
859 lpfc_can_disctmo(vport);
863 lpfc_linkdown_port(struct lpfc_vport *vport)
865 struct lpfc_hba *phba = vport->phba;
866 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
868 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
869 fc_host_post_event(shost, fc_get_event_number(),
870 FCH_EVT_LINKDOWN, 0);
872 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
873 "Link Down: state:x%x rtry:x%x flg:x%x",
874 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
876 lpfc_port_link_failure(vport);
878 /* Stop delayed Nport discovery */
879 spin_lock_irq(shost->host_lock);
880 vport->fc_flag &= ~FC_DISC_DELAYED;
881 spin_unlock_irq(shost->host_lock);
882 del_timer_sync(&vport->delayed_disc_tmo);
886 lpfc_linkdown(struct lpfc_hba *phba)
888 struct lpfc_vport *vport = phba->pport;
889 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
890 struct lpfc_vport **vports;
894 if (phba->link_state == LPFC_LINK_DOWN)
897 /* Block all SCSI stack I/Os */
898 lpfc_scsi_dev_block(phba);
900 spin_lock_irq(&phba->hbalock);
901 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
902 spin_unlock_irq(&phba->hbalock);
903 if (phba->link_state > LPFC_LINK_DOWN) {
904 phba->link_state = LPFC_LINK_DOWN;
905 spin_lock_irq(shost->host_lock);
906 phba->pport->fc_flag &= ~FC_LBIT;
907 spin_unlock_irq(shost->host_lock);
909 vports = lpfc_create_vport_work_array(phba);
910 if (vports != NULL) {
911 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
912 /* Issue a LINK DOWN event to all nodes */
913 lpfc_linkdown_port(vports[i]);
915 vports[i]->fc_myDID = 0;
917 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
918 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
919 if (phba->nvmet_support)
920 lpfc_nvmet_update_targetport(phba);
922 lpfc_nvme_update_localport(vports[i]);
926 lpfc_destroy_vport_work_array(phba, vports);
928 /* Clean up any SLI3 firmware default rpi's */
929 if (phba->sli_rev > LPFC_SLI_REV3)
932 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
934 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
936 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
937 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
938 == MBX_NOT_FINISHED) {
939 mempool_free(mb, phba->mbox_mem_pool);
944 /* Setup myDID for link up if we are in pt2pt mode */
945 if (phba->pport->fc_flag & FC_PT2PT) {
946 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
948 lpfc_config_link(phba, mb);
949 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
951 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
952 == MBX_NOT_FINISHED) {
953 mempool_free(mb, phba->mbox_mem_pool);
956 spin_lock_irq(shost->host_lock);
957 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
958 spin_unlock_irq(shost->host_lock);
964 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
966 struct lpfc_nodelist *ndlp;
968 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
969 if (!NLP_CHK_NODE_ACT(ndlp))
971 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
973 if (ndlp->nlp_type & NLP_FABRIC) {
974 /* On Linkup its safe to clean up the ndlp
975 * from Fabric connections.
977 if (ndlp->nlp_DID != Fabric_DID)
978 lpfc_unreg_rpi(vport, ndlp);
979 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
980 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
981 /* Fail outstanding IO now since device is
984 lpfc_unreg_rpi(vport, ndlp);
990 lpfc_linkup_port(struct lpfc_vport *vport)
992 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
993 struct lpfc_hba *phba = vport->phba;
995 if ((vport->load_flag & FC_UNLOADING) != 0)
998 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
999 "Link Up: top:x%x speed:x%x flg:x%x",
1000 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
1002 /* If NPIV is not enabled, only bring the physical port up */
1003 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1004 (vport != phba->pport))
1007 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
1008 fc_host_post_event(shost, fc_get_event_number(),
1011 spin_lock_irq(shost->host_lock);
1012 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
1013 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
1014 vport->fc_flag |= FC_NDISC_ACTIVE;
1015 vport->fc_ns_retry = 0;
1016 spin_unlock_irq(shost->host_lock);
1018 if (vport->fc_flag & FC_LBIT)
1019 lpfc_linkup_cleanup_nodes(vport);
1024 lpfc_linkup(struct lpfc_hba *phba)
1026 struct lpfc_vport **vports;
1029 phba->link_state = LPFC_LINK_UP;
1031 /* Unblock fabric iocbs if they are blocked */
1032 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
1033 del_timer_sync(&phba->fabric_block_timer);
1035 vports = lpfc_create_vport_work_array(phba);
1037 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1038 lpfc_linkup_port(vports[i]);
1039 lpfc_destroy_vport_work_array(phba, vports);
1045 * This routine handles processing a CLEAR_LA mailbox
1046 * command upon completion. It is setup in the LPFC_MBOXQ
1047 * as the completion routine when the command is
1048 * handed off to the SLI layer. SLI3 only.
1051 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1053 struct lpfc_vport *vport = pmb->vport;
1054 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1055 struct lpfc_sli *psli = &phba->sli;
1056 MAILBOX_t *mb = &pmb->u.mb;
1059 /* Since we don't do discovery right now, turn these off here */
1060 psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1061 psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1063 /* Check for error */
1064 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
1065 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
1066 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1067 "0320 CLEAR_LA mbxStatus error x%x hba "
1069 mb->mbxStatus, vport->port_state);
1070 phba->link_state = LPFC_HBA_ERROR;
1074 if (vport->port_type == LPFC_PHYSICAL_PORT)
1075 phba->link_state = LPFC_HBA_READY;
1077 spin_lock_irq(&phba->hbalock);
1078 psli->sli_flag |= LPFC_PROCESS_LA;
1079 control = readl(phba->HCregaddr);
1080 control |= HC_LAINT_ENA;
1081 writel(control, phba->HCregaddr);
1082 readl(phba->HCregaddr); /* flush */
1083 spin_unlock_irq(&phba->hbalock);
1084 mempool_free(pmb, phba->mbox_mem_pool);
1088 /* Device Discovery completes */
1089 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1090 "0225 Device Discovery completes\n");
1091 mempool_free(pmb, phba->mbox_mem_pool);
1093 spin_lock_irq(shost->host_lock);
1094 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
1095 spin_unlock_irq(shost->host_lock);
1097 lpfc_can_disctmo(vport);
1099 /* turn on Link Attention interrupts */
1101 spin_lock_irq(&phba->hbalock);
1102 psli->sli_flag |= LPFC_PROCESS_LA;
1103 control = readl(phba->HCregaddr);
1104 control |= HC_LAINT_ENA;
1105 writel(control, phba->HCregaddr);
1106 readl(phba->HCregaddr); /* flush */
1107 spin_unlock_irq(&phba->hbalock);
1114 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1116 struct lpfc_vport *vport = pmb->vport;
1119 if (pmb->u.mb.mbxStatus)
1122 mempool_free(pmb, phba->mbox_mem_pool);
1124 /* don't perform discovery for SLI4 loopback diagnostic test */
1125 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1126 !(phba->hba_flag & HBA_FCOE_MODE) &&
1127 (phba->link_flag & LS_LOOPBACK_MODE))
1130 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
1131 vport->fc_flag & FC_PUBLIC_LOOP &&
1132 !(vport->fc_flag & FC_LBIT)) {
1133 /* Need to wait for FAN - use discovery timer
1134 * for timeout. port_state is identically
1135 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1137 lpfc_set_disctmo(vport);
1141 /* Start discovery by sending a FLOGI. port_state is identically
1142 * LPFC_FLOGI while waiting for FLOGI cmpl
1144 if (vport->port_state != LPFC_FLOGI) {
1145 if (phba->bbcredit_support && phba->cfg_enable_bbcr) {
1146 bbscn = bf_get(lpfc_bbscn_def,
1147 &phba->sli4_hba.bbscn_params);
1148 vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf;
1149 vport->fc_sparam.cmn.bbRcvSizeMsb |= (bbscn << 4);
1151 lpfc_initial_flogi(vport);
1152 } else if (vport->fc_flag & FC_PT2PT) {
1153 lpfc_disc_start(vport);
1158 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1159 "0306 CONFIG_LINK mbxStatus error x%x "
1161 pmb->u.mb.mbxStatus, vport->port_state);
1162 mempool_free(pmb, phba->mbox_mem_pool);
1164 lpfc_linkdown(phba);
1166 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1167 "0200 CONFIG_LINK bad hba state x%x\n",
1170 lpfc_issue_clear_la(phba, vport);
1175 * lpfc_sli4_clear_fcf_rr_bmask
1176 * @phba pointer to the struct lpfc_hba for this port.
1177 * This fucnction resets the round robin bit mask and clears the
1178 * fcf priority list. The list deletions are done while holding the
1179 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1180 * from the lpfc_fcf_pri record.
1183 lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
1185 struct lpfc_fcf_pri *fcf_pri;
1186 struct lpfc_fcf_pri *next_fcf_pri;
1187 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
1188 spin_lock_irq(&phba->hbalock);
1189 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
1190 &phba->fcf.fcf_pri_list, list) {
1191 list_del_init(&fcf_pri->list);
1192 fcf_pri->fcf_rec.flag = 0;
1194 spin_unlock_irq(&phba->hbalock);
1197 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1199 struct lpfc_vport *vport = mboxq->vport;
1201 if (mboxq->u.mb.mbxStatus) {
1202 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1203 "2017 REG_FCFI mbxStatus error x%x "
1205 mboxq->u.mb.mbxStatus, vport->port_state);
1209 /* Start FCoE discovery by sending a FLOGI. */
1210 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1211 /* Set the FCFI registered flag */
1212 spin_lock_irq(&phba->hbalock);
1213 phba->fcf.fcf_flag |= FCF_REGISTERED;
1214 spin_unlock_irq(&phba->hbalock);
1216 /* If there is a pending FCoE event, restart FCF table scan. */
1217 if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
1218 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
1221 /* Mark successful completion of FCF table scan */
1222 spin_lock_irq(&phba->hbalock);
1223 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1224 phba->hba_flag &= ~FCF_TS_INPROG;
1225 if (vport->port_state != LPFC_FLOGI) {
1226 phba->hba_flag |= FCF_RR_INPROG;
1227 spin_unlock_irq(&phba->hbalock);
1228 lpfc_issue_init_vfi(vport);
1231 spin_unlock_irq(&phba->hbalock);
1235 spin_lock_irq(&phba->hbalock);
1236 phba->hba_flag &= ~FCF_RR_INPROG;
1237 spin_unlock_irq(&phba->hbalock);
1239 mempool_free(mboxq, phba->mbox_mem_pool);
1243 * lpfc_fab_name_match - Check if the fcf fabric name match.
1244 * @fab_name: pointer to fabric name.
1245 * @new_fcf_record: pointer to fcf record.
1247 * This routine compare the fcf record's fabric name with provided
1248 * fabric name. If the fabric name are identical this function
1249 * returns 1 else return 0.
1252 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1254 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1256 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1258 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1260 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1262 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1264 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
1266 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1268 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1274 * lpfc_sw_name_match - Check if the fcf switch name match.
1275 * @fab_name: pointer to fabric name.
1276 * @new_fcf_record: pointer to fcf record.
1278 * This routine compare the fcf record's switch name with provided
1279 * switch name. If the switch name are identical this function
1280 * returns 1 else return 0.
1283 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1285 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1287 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1289 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
1291 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1293 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1295 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1297 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1299 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1305 * lpfc_mac_addr_match - Check if the fcf mac address match.
1306 * @mac_addr: pointer to mac address.
1307 * @new_fcf_record: pointer to fcf record.
1309 * This routine compare the fcf record's mac address with HBA's
1310 * FCF mac address. If the mac addresses are identical this function
1311 * returns 1 else return 0.
1314 lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
1316 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1318 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1320 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1322 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1324 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1326 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
1332 lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1334 return (curr_vlan_id == new_vlan_id);
1338 * lpfc_update_fcf_record - Update driver fcf record
1339 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1340 * @phba: pointer to lpfc hba data structure.
1341 * @fcf_index: Index for the lpfc_fcf_record.
1342 * @new_fcf_record: pointer to hba fcf record.
1344 * This routine updates the driver FCF priority record from the new HBA FCF
1345 * record. This routine is called with the host lock held.
1348 __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
1349 struct fcf_record *new_fcf_record
1352 struct lpfc_fcf_pri *fcf_pri;
1354 lockdep_assert_held(&phba->hbalock);
1356 fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1357 fcf_pri->fcf_rec.fcf_index = fcf_index;
1358 /* FCF record priority */
1359 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
1364 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1365 * @fcf: pointer to driver fcf record.
1366 * @new_fcf_record: pointer to fcf record.
1368 * This routine copies the FCF information from the FCF
1369 * record to lpfc_hba data structure.
1372 lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1373 struct fcf_record *new_fcf_record)
1376 fcf_rec->fabric_name[0] =
1377 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
1378 fcf_rec->fabric_name[1] =
1379 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
1380 fcf_rec->fabric_name[2] =
1381 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
1382 fcf_rec->fabric_name[3] =
1383 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
1384 fcf_rec->fabric_name[4] =
1385 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
1386 fcf_rec->fabric_name[5] =
1387 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
1388 fcf_rec->fabric_name[6] =
1389 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
1390 fcf_rec->fabric_name[7] =
1391 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
1393 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1394 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1395 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1396 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1397 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1398 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1399 /* FCF record index */
1400 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1401 /* FCF record priority */
1402 fcf_rec->priority = new_fcf_record->fip_priority;
1404 fcf_rec->switch_name[0] =
1405 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
1406 fcf_rec->switch_name[1] =
1407 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
1408 fcf_rec->switch_name[2] =
1409 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
1410 fcf_rec->switch_name[3] =
1411 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
1412 fcf_rec->switch_name[4] =
1413 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
1414 fcf_rec->switch_name[5] =
1415 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
1416 fcf_rec->switch_name[6] =
1417 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
1418 fcf_rec->switch_name[7] =
1419 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
1423 * lpfc_update_fcf_record - Update driver fcf record
1424 * @phba: pointer to lpfc hba data structure.
1425 * @fcf_rec: pointer to driver fcf record.
1426 * @new_fcf_record: pointer to hba fcf record.
1427 * @addr_mode: address mode to be set to the driver fcf record.
1428 * @vlan_id: vlan tag to be set to the driver fcf record.
1429 * @flag: flag bits to be set to the driver fcf record.
1431 * This routine updates the driver FCF record from the new HBA FCF record
1432 * together with the address mode, vlan_id, and other informations. This
1433 * routine is called with the host lock held.
1436 __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1437 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1438 uint16_t vlan_id, uint32_t flag)
1440 lockdep_assert_held(&phba->hbalock);
1442 /* Copy the fields from the HBA's FCF record */
1443 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1444 /* Update other fields of driver FCF record */
1445 fcf_rec->addr_mode = addr_mode;
1446 fcf_rec->vlan_id = vlan_id;
1447 fcf_rec->flag |= (flag | RECORD_VALID);
1448 __lpfc_update_fcf_record_pri(phba,
1449 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
1454 * lpfc_register_fcf - Register the FCF with hba.
1455 * @phba: pointer to lpfc hba data structure.
1457 * This routine issues a register fcfi mailbox command to register
1461 lpfc_register_fcf(struct lpfc_hba *phba)
1463 LPFC_MBOXQ_t *fcf_mbxq;
1466 spin_lock_irq(&phba->hbalock);
1467 /* If the FCF is not available do nothing. */
1468 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
1469 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1470 spin_unlock_irq(&phba->hbalock);
1474 /* The FCF is already registered, start discovery */
1475 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
1476 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
1477 phba->hba_flag &= ~FCF_TS_INPROG;
1478 if (phba->pport->port_state != LPFC_FLOGI &&
1479 phba->pport->fc_flag & FC_FABRIC) {
1480 phba->hba_flag |= FCF_RR_INPROG;
1481 spin_unlock_irq(&phba->hbalock);
1482 lpfc_initial_flogi(phba->pport);
1485 spin_unlock_irq(&phba->hbalock);
1488 spin_unlock_irq(&phba->hbalock);
1490 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1492 spin_lock_irq(&phba->hbalock);
1493 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1494 spin_unlock_irq(&phba->hbalock);
1498 lpfc_reg_fcfi(phba, fcf_mbxq);
1499 fcf_mbxq->vport = phba->pport;
1500 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1501 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
1502 if (rc == MBX_NOT_FINISHED) {
1503 spin_lock_irq(&phba->hbalock);
1504 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1505 spin_unlock_irq(&phba->hbalock);
1506 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
1513 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1514 * @phba: pointer to lpfc hba data structure.
1515 * @new_fcf_record: pointer to fcf record.
1516 * @boot_flag: Indicates if this record used by boot bios.
1517 * @addr_mode: The address mode to be used by this FCF
1518 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
1520 * This routine compare the fcf record with connect list obtained from the
1521 * config region to decide if this FCF can be used for SAN discovery. It returns
1522 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1523 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1524 * is used by boot bios and addr_mode will indicate the addressing mode to be
1525 * used for this FCF when the function returns.
1526 * If the FCF record need to be used with a particular vlan id, the vlan is
1527 * set in the vlan_id on return of the function. If not VLAN tagging need to
1528 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
1531 lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1532 struct fcf_record *new_fcf_record,
1533 uint32_t *boot_flag, uint32_t *addr_mode,
1536 struct lpfc_fcf_conn_entry *conn_entry;
1537 int i, j, fcf_vlan_id = 0;
1539 /* Find the lowest VLAN id in the FCF record */
1540 for (i = 0; i < 512; i++) {
1541 if (new_fcf_record->vlan_bitmap[i]) {
1542 fcf_vlan_id = i * 8;
1544 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1552 /* FCF not valid/available or solicitation in progress */
1553 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1554 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||
1555 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))
1558 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
1560 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1562 if (phba->valid_vlan)
1563 *vlan_id = phba->vlan_id;
1565 *vlan_id = LPFC_FCOE_NULL_VID;
1570 * If there are no FCF connection table entry, driver connect to all
1573 if (list_empty(&phba->fcf_conn_rec_list)) {
1575 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1579 * When there are no FCF connect entries, use driver's default
1580 * addressing mode - FPMA.
1582 if (*addr_mode & LPFC_FCF_FPMA)
1583 *addr_mode = LPFC_FCF_FPMA;
1585 /* If FCF record report a vlan id use that vlan id */
1587 *vlan_id = fcf_vlan_id;
1589 *vlan_id = LPFC_FCOE_NULL_VID;
1593 list_for_each_entry(conn_entry,
1594 &phba->fcf_conn_rec_list, list) {
1595 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1598 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1599 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
1602 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1603 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1606 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1608 * If the vlan bit map does not have the bit set for the
1609 * vlan id to be used, then it is not a match.
1611 if (!(new_fcf_record->vlan_bitmap
1612 [conn_entry->conn_rec.vlan_tag / 8] &
1613 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1618 * If connection record does not support any addressing mode,
1619 * skip the FCF record.
1621 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1622 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1626 * Check if the connection record specifies a required
1629 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1630 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1633 * If SPMA required but FCF not support this continue.
1635 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1636 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1637 new_fcf_record) & LPFC_FCF_SPMA))
1641 * If FPMA required but FCF not support this continue.
1643 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1644 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1645 new_fcf_record) & LPFC_FCF_FPMA))
1650 * This fcf record matches filtering criteria.
1652 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1658 * If user did not specify any addressing mode, or if the
1659 * preferred addressing mode specified by user is not supported
1660 * by FCF, allow fabric to pick the addressing mode.
1662 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1665 * If the user specified a required address mode, assign that
1668 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1669 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1670 *addr_mode = (conn_entry->conn_rec.flags &
1672 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1674 * If the user specified a preferred address mode, use the
1675 * addr mode only if FCF support the addr_mode.
1677 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1678 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1679 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1680 (*addr_mode & LPFC_FCF_SPMA))
1681 *addr_mode = LPFC_FCF_SPMA;
1682 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1683 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1684 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1685 (*addr_mode & LPFC_FCF_FPMA))
1686 *addr_mode = LPFC_FCF_FPMA;
1688 /* If matching connect list has a vlan id, use it */
1689 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1690 *vlan_id = conn_entry->conn_rec.vlan_tag;
1692 * If no vlan id is specified in connect list, use the vlan id
1695 else if (fcf_vlan_id)
1696 *vlan_id = fcf_vlan_id;
1698 *vlan_id = LPFC_FCOE_NULL_VID;
1707 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1708 * @phba: pointer to lpfc hba data structure.
1709 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1711 * This function check if there is any fcoe event pending while driver
1712 * scan FCF entries. If there is any pending event, it will restart the
1713 * FCF saning and return 1 else return 0.
1716 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1719 * If the Link is up and no FCoE events while in the
1720 * FCF discovery, no need to restart FCF discovery.
1722 if ((phba->link_state >= LPFC_LINK_UP) &&
1723 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
1726 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1727 "2768 Pending link or FCF event during current "
1728 "handling of the previous event: link_state:x%x, "
1729 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1730 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
1731 phba->fcoe_eventtag);
1733 spin_lock_irq(&phba->hbalock);
1734 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1735 spin_unlock_irq(&phba->hbalock);
1737 if (phba->link_state >= LPFC_LINK_UP) {
1738 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1739 "2780 Restart FCF table scan due to "
1740 "pending FCF event:evt_tag_at_scan:x%x, "
1741 "evt_tag_current:x%x\n",
1742 phba->fcoe_eventtag_at_fcf_scan,
1743 phba->fcoe_eventtag);
1744 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
1747 * Do not continue FCF discovery and clear FCF_TS_INPROG
1750 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1751 "2833 Stop FCF discovery process due to link "
1752 "state change (x%x)\n", phba->link_state);
1753 spin_lock_irq(&phba->hbalock);
1754 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
1755 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
1756 spin_unlock_irq(&phba->hbalock);
1759 /* Unregister the currently registered FCF if required */
1761 spin_lock_irq(&phba->hbalock);
1762 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1763 spin_unlock_irq(&phba->hbalock);
1764 lpfc_sli4_unregister_fcf(phba);
1770 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1771 * @phba: pointer to lpfc hba data structure.
1772 * @fcf_cnt: number of eligible fcf record seen so far.
1774 * This function makes an running random selection decision on FCF record to
1775 * use through a sequence of @fcf_cnt eligible FCF records with equal
1776 * probability. To perform integer manunipulation of random numbers with
1777 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1778 * from prandom_u32() are taken as the random random number generated.
1780 * Returns true when outcome is for the newly read FCF record should be
1781 * chosen; otherwise, return false when outcome is for keeping the previously
1782 * chosen FCF record.
1785 lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
1789 /* Get 16-bit uniform random number */
1790 rand_num = 0xFFFF & prandom_u32();
1792 /* Decision with probability 1/fcf_cnt */
1793 if ((fcf_cnt * rand_num) < 0xFFFF)
1800 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
1801 * @phba: pointer to lpfc hba data structure.
1802 * @mboxq: pointer to mailbox object.
1803 * @next_fcf_index: pointer to holder of next fcf index.
1805 * This routine parses the non-embedded fcf mailbox command by performing the
1806 * necessarily error checking, non-embedded read FCF record mailbox command
1807 * SGE parsing, and endianness swapping.
1809 * Returns the pointer to the new FCF record in the non-embedded mailbox
1810 * command DMA memory if successfully, other NULL.
1812 static struct fcf_record *
1813 lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
1814 uint16_t *next_fcf_index)
1817 struct lpfc_mbx_sge sge;
1818 struct lpfc_mbx_read_fcf_tbl *read_fcf;
1819 uint32_t shdr_status, shdr_add_status, if_type;
1820 union lpfc_sli4_cfg_shdr *shdr;
1821 struct fcf_record *new_fcf_record;
1823 /* Get the first SGE entry from the non-embedded DMA memory. This
1824 * routine only uses a single SGE.
1826 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1827 if (unlikely(!mboxq->sge_array)) {
1828 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1829 "2524 Failed to get the non-embedded SGE "
1830 "virtual address\n");
1833 virt_addr = mboxq->sge_array->addr[0];
1835 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
1836 lpfc_sli_pcimem_bcopy(shdr, shdr,
1837 sizeof(union lpfc_sli4_cfg_shdr));
1838 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
1839 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1840 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
1841 if (shdr_status || shdr_add_status) {
1842 if (shdr_status == STATUS_FCF_TABLE_EMPTY ||
1843 if_type == LPFC_SLI_INTF_IF_TYPE_2)
1844 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1845 "2726 READ_FCF_RECORD Indicates empty "
1848 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
1849 "2521 READ_FCF_RECORD mailbox failed "
1850 "with status x%x add_status x%x, "
1851 "mbx\n", shdr_status, shdr_add_status);
1855 /* Interpreting the returned information of the FCF record */
1856 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1857 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1858 sizeof(struct lpfc_mbx_read_fcf_tbl));
1859 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
1860 new_fcf_record = (struct fcf_record *)(virt_addr +
1861 sizeof(struct lpfc_mbx_read_fcf_tbl));
1862 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
1863 offsetof(struct fcf_record, vlan_bitmap));
1864 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
1865 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
1867 return new_fcf_record;
1871 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1872 * @phba: pointer to lpfc hba data structure.
1873 * @fcf_record: pointer to the fcf record.
1874 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1875 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1877 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1881 lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
1882 struct fcf_record *fcf_record,
1884 uint16_t next_fcf_index)
1886 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1887 "2764 READ_FCF_RECORD:\n"
1888 "\tFCF_Index : x%x\n"
1889 "\tFCF_Avail : x%x\n"
1890 "\tFCF_Valid : x%x\n"
1892 "\tFIP_Priority : x%x\n"
1893 "\tMAC_Provider : x%x\n"
1894 "\tLowest VLANID : x%x\n"
1895 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1896 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1897 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1898 "\tNext_FCF_Index: x%x\n",
1899 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
1900 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
1901 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
1902 bf_get(lpfc_fcf_record_fcf_sol, fcf_record),
1903 fcf_record->fip_priority,
1904 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
1906 bf_get(lpfc_fcf_record_mac_0, fcf_record),
1907 bf_get(lpfc_fcf_record_mac_1, fcf_record),
1908 bf_get(lpfc_fcf_record_mac_2, fcf_record),
1909 bf_get(lpfc_fcf_record_mac_3, fcf_record),
1910 bf_get(lpfc_fcf_record_mac_4, fcf_record),
1911 bf_get(lpfc_fcf_record_mac_5, fcf_record),
1912 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
1913 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
1914 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
1915 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
1916 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
1917 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
1918 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
1919 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
1920 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
1921 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
1922 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
1923 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
1924 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
1925 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
1926 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
1927 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
1932 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1933 * @phba: pointer to lpfc hba data structure.
1934 * @fcf_rec: pointer to an existing FCF record.
1935 * @new_fcf_record: pointer to a new FCF record.
1936 * @new_vlan_id: vlan id from the new FCF record.
1938 * This function performs matching test of a new FCF record against an existing
1939 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1940 * will not be used as part of the FCF record matching criteria.
1942 * Returns true if all the fields matching, otherwise returns false.
1945 lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
1946 struct lpfc_fcf_rec *fcf_rec,
1947 struct fcf_record *new_fcf_record,
1948 uint16_t new_vlan_id)
1950 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
1951 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
1953 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
1955 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
1957 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
1959 if (fcf_rec->priority != new_fcf_record->fip_priority)
1965 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1966 * @vport: Pointer to vport object.
1967 * @fcf_index: index to next fcf.
1969 * This function processing the roundrobin fcf failover to next fcf index.
1970 * When this function is invoked, there will be a current fcf registered
1972 * Return: 0 for continue retrying flogi on currently registered fcf;
1973 * 1 for stop flogi on currently registered fcf;
1975 int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
1977 struct lpfc_hba *phba = vport->phba;
1980 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
1981 spin_lock_irq(&phba->hbalock);
1982 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
1983 spin_unlock_irq(&phba->hbalock);
1984 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1985 "2872 Devloss tmo with no eligible "
1986 "FCF, unregister in-use FCF (x%x) "
1987 "and rescan FCF table\n",
1988 phba->fcf.current_rec.fcf_indx);
1989 lpfc_unregister_fcf_rescan(phba);
1990 goto stop_flogi_current_fcf;
1992 /* Mark the end to FLOGI roundrobin failover */
1993 phba->hba_flag &= ~FCF_RR_INPROG;
1994 /* Allow action to new fcf asynchronous event */
1995 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
1996 spin_unlock_irq(&phba->hbalock);
1997 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1998 "2865 No FCF available, stop roundrobin FCF "
1999 "failover and change port state:x%x/x%x\n",
2000 phba->pport->port_state, LPFC_VPORT_UNKNOWN);
2001 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
2003 if (!phba->fcf.fcf_redisc_attempted) {
2004 lpfc_unregister_fcf(phba);
2006 rc = lpfc_sli4_redisc_fcf_table(phba);
2008 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2009 "3195 Rediscover FCF table\n");
2010 phba->fcf.fcf_redisc_attempted = 1;
2011 lpfc_sli4_clear_fcf_rr_bmask(phba);
2013 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2014 "3196 Rediscover FCF table "
2015 "failed. Status:x%x\n", rc);
2018 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2019 "3197 Already rediscover FCF table "
2020 "attempted. No more retry\n");
2022 goto stop_flogi_current_fcf;
2024 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
2025 "2794 Try FLOGI roundrobin FCF failover to "
2026 "(x%x)\n", fcf_index);
2027 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
2029 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
2030 "2761 FLOGI roundrobin FCF failover "
2031 "failed (rc:x%x) to read FCF (x%x)\n",
2032 rc, phba->fcf.current_rec.fcf_indx);
2034 goto stop_flogi_current_fcf;
2038 stop_flogi_current_fcf:
2039 lpfc_can_disctmo(vport);
2044 * lpfc_sli4_fcf_pri_list_del
2045 * @phba: pointer to lpfc hba data structure.
2046 * @fcf_index the index of the fcf record to delete
2047 * This routine checks the on list flag of the fcf_index to be deleted.
2048 * If it is one the list then it is removed from the list, and the flag
2049 * is cleared. This routine grab the hbalock before removing the fcf
2050 * record from the list.
2052 static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
2055 struct lpfc_fcf_pri *new_fcf_pri;
2057 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2058 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2059 "3058 deleting idx x%x pri x%x flg x%x\n",
2060 fcf_index, new_fcf_pri->fcf_rec.priority,
2061 new_fcf_pri->fcf_rec.flag);
2062 spin_lock_irq(&phba->hbalock);
2063 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
2064 if (phba->fcf.current_rec.priority ==
2065 new_fcf_pri->fcf_rec.priority)
2066 phba->fcf.eligible_fcf_cnt--;
2067 list_del_init(&new_fcf_pri->list);
2068 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
2070 spin_unlock_irq(&phba->hbalock);
2074 * lpfc_sli4_set_fcf_flogi_fail
2075 * @phba: pointer to lpfc hba data structure.
2076 * @fcf_index the index of the fcf record to update
2077 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2078 * flag so the the round robin slection for the particular priority level
2079 * will try a different fcf record that does not have this bit set.
2080 * If the fcf record is re-read for any reason this flag is cleared brfore
2081 * adding it to the priority list.
2084 lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
2086 struct lpfc_fcf_pri *new_fcf_pri;
2087 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2088 spin_lock_irq(&phba->hbalock);
2089 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
2090 spin_unlock_irq(&phba->hbalock);
2094 * lpfc_sli4_fcf_pri_list_add
2095 * @phba: pointer to lpfc hba data structure.
2096 * @fcf_index the index of the fcf record to add
2097 * This routine checks the priority of the fcf_index to be added.
2098 * If it is a lower priority than the current head of the fcf_pri list
2099 * then it is added to the list in the right order.
2100 * If it is the same priority as the current head of the list then it
2101 * is added to the head of the list and its bit in the rr_bmask is set.
2102 * If the fcf_index to be added is of a higher priority than the current
2103 * head of the list then the rr_bmask is cleared, its bit is set in the
2104 * rr_bmask and it is added to the head of the list.
2106 * 0=success 1=failure
2108 static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba,
2110 struct fcf_record *new_fcf_record)
2112 uint16_t current_fcf_pri;
2113 uint16_t last_index;
2114 struct lpfc_fcf_pri *fcf_pri;
2115 struct lpfc_fcf_pri *next_fcf_pri;
2116 struct lpfc_fcf_pri *new_fcf_pri;
2119 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2120 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2121 "3059 adding idx x%x pri x%x flg x%x\n",
2122 fcf_index, new_fcf_record->fip_priority,
2123 new_fcf_pri->fcf_rec.flag);
2124 spin_lock_irq(&phba->hbalock);
2125 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
2126 list_del_init(&new_fcf_pri->list);
2127 new_fcf_pri->fcf_rec.fcf_index = fcf_index;
2128 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
2129 if (list_empty(&phba->fcf.fcf_pri_list)) {
2130 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2131 ret = lpfc_sli4_fcf_rr_index_set(phba,
2132 new_fcf_pri->fcf_rec.fcf_index);
2136 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
2137 LPFC_SLI4_FCF_TBL_INDX_MAX);
2138 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
2139 ret = 0; /* Empty rr list */
2142 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
2143 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
2144 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2145 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
2146 memset(phba->fcf.fcf_rr_bmask, 0,
2147 sizeof(*phba->fcf.fcf_rr_bmask));
2148 /* fcfs_at_this_priority_level = 1; */
2149 phba->fcf.eligible_fcf_cnt = 1;
2151 /* fcfs_at_this_priority_level++; */
2152 phba->fcf.eligible_fcf_cnt++;
2153 ret = lpfc_sli4_fcf_rr_index_set(phba,
2154 new_fcf_pri->fcf_rec.fcf_index);
2158 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
2159 &phba->fcf.fcf_pri_list, list) {
2160 if (new_fcf_pri->fcf_rec.priority <=
2161 fcf_pri->fcf_rec.priority) {
2162 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
2163 list_add(&new_fcf_pri->list,
2164 &phba->fcf.fcf_pri_list);
2166 list_add(&new_fcf_pri->list,
2167 &((struct lpfc_fcf_pri *)
2168 fcf_pri->list.prev)->list);
2171 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
2172 || new_fcf_pri->fcf_rec.priority <
2173 next_fcf_pri->fcf_rec.priority) {
2174 list_add(&new_fcf_pri->list, &fcf_pri->list);
2178 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
2184 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2185 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
2186 spin_unlock_irq(&phba->hbalock);
2191 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2192 * @phba: pointer to lpfc hba data structure.
2193 * @mboxq: pointer to mailbox object.
2195 * This function iterates through all the fcf records available in
2196 * HBA and chooses the optimal FCF record for discovery. After finding
2197 * the FCF for discovery it registers the FCF record and kicks start
2199 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2200 * use an FCF record which matches fabric name and mac address of the
2201 * currently used FCF record.
2202 * If the driver supports only one FCF, it will try to use the FCF record
2203 * used by BOOT_BIOS.
2206 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2208 struct fcf_record *new_fcf_record;
2209 uint32_t boot_flag, addr_mode;
2210 uint16_t fcf_index, next_fcf_index;
2211 struct lpfc_fcf_rec *fcf_rec = NULL;
2212 uint16_t vlan_id = LPFC_FCOE_NULL_VID;
2213 bool select_new_fcf;
2216 /* If there is pending FCoE event restart FCF table scan */
2217 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
2218 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2222 /* Parse the FCF record from the non-embedded mailbox command */
2223 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2225 if (!new_fcf_record) {
2226 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2227 "2765 Mailbox command READ_FCF_RECORD "
2228 "failed to retrieve a FCF record.\n");
2229 /* Let next new FCF event trigger fast failover */
2230 spin_lock_irq(&phba->hbalock);
2231 phba->hba_flag &= ~FCF_TS_INPROG;
2232 spin_unlock_irq(&phba->hbalock);
2233 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2237 /* Check the FCF record against the connection list */
2238 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2239 &addr_mode, &vlan_id);
2241 /* Log the FCF record information if turned on */
2242 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2246 * If the fcf record does not match with connect list entries
2247 * read the next entry; otherwise, this is an eligible FCF
2248 * record for roundrobin FCF failover.
2251 lpfc_sli4_fcf_pri_list_del(phba,
2252 bf_get(lpfc_fcf_record_fcf_index,
2254 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2255 "2781 FCF (x%x) failed connection "
2256 "list check: (x%x/x%x/%x)\n",
2257 bf_get(lpfc_fcf_record_fcf_index,
2259 bf_get(lpfc_fcf_record_fcf_avail,
2261 bf_get(lpfc_fcf_record_fcf_valid,
2263 bf_get(lpfc_fcf_record_fcf_sol,
2265 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
2266 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2267 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
2268 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
2269 phba->fcf.current_rec.fcf_indx) {
2270 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2271 "2862 FCF (x%x) matches property "
2272 "of in-use FCF (x%x)\n",
2273 bf_get(lpfc_fcf_record_fcf_index,
2275 phba->fcf.current_rec.fcf_indx);
2279 * In case the current in-use FCF record becomes
2280 * invalid/unavailable during FCF discovery that
2281 * was not triggered by fast FCF failover process,
2282 * treat it as fast FCF failover.
2284 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
2285 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2286 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2287 "2835 Invalid in-use FCF "
2288 "(x%x), enter FCF failover "
2290 phba->fcf.current_rec.fcf_indx);
2291 spin_lock_irq(&phba->hbalock);
2292 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2293 spin_unlock_irq(&phba->hbalock);
2294 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2295 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2296 LPFC_FCOE_FCF_GET_FIRST);
2302 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2303 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
2310 * If this is not the first FCF discovery of the HBA, use last
2311 * FCF record for the discovery. The condition that a rescan
2312 * matches the in-use FCF record: fabric name, switch name, mac
2313 * address, and vlan_id.
2315 spin_lock_irq(&phba->hbalock);
2316 if (phba->fcf.fcf_flag & FCF_IN_USE) {
2317 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2318 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2319 new_fcf_record, vlan_id)) {
2320 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
2321 phba->fcf.current_rec.fcf_indx) {
2322 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2323 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
2324 /* Stop FCF redisc wait timer */
2325 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2327 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2328 /* Fast failover, mark completed */
2329 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2330 spin_unlock_irq(&phba->hbalock);
2331 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2332 "2836 New FCF matches in-use "
2333 "FCF (x%x), port_state:x%x, "
2335 phba->fcf.current_rec.fcf_indx,
2336 phba->pport->port_state,
2337 phba->pport->fc_flag);
2340 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2341 "2863 New FCF (x%x) matches "
2342 "property of in-use FCF (x%x)\n",
2343 bf_get(lpfc_fcf_record_fcf_index,
2345 phba->fcf.current_rec.fcf_indx);
2348 * Read next FCF record from HBA searching for the matching
2349 * with in-use record only if not during the fast failover
2350 * period. In case of fast failover period, it shall try to
2351 * determine whether the FCF record just read should be the
2354 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2355 spin_unlock_irq(&phba->hbalock);
2360 * Update on failover FCF record only if it's in FCF fast-failover
2361 * period; otherwise, update on current FCF record.
2363 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2364 fcf_rec = &phba->fcf.failover_rec;
2366 fcf_rec = &phba->fcf.current_rec;
2368 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
2370 * If the driver FCF record does not have boot flag
2371 * set and new hba fcf record has boot flag set, use
2372 * the new hba fcf record.
2374 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
2375 /* Choose this FCF record */
2376 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2377 "2837 Update current FCF record "
2378 "(x%x) with new FCF record (x%x)\n",
2380 bf_get(lpfc_fcf_record_fcf_index,
2382 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2383 addr_mode, vlan_id, BOOT_ENABLE);
2384 spin_unlock_irq(&phba->hbalock);
2388 * If the driver FCF record has boot flag set and the
2389 * new hba FCF record does not have boot flag, read
2390 * the next FCF record.
2392 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
2393 spin_unlock_irq(&phba->hbalock);
2397 * If the new hba FCF record has lower priority value
2398 * than the driver FCF record, use the new record.
2400 if (new_fcf_record->fip_priority < fcf_rec->priority) {
2401 /* Choose the new FCF record with lower priority */
2402 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2403 "2838 Update current FCF record "
2404 "(x%x) with new FCF record (x%x)\n",
2406 bf_get(lpfc_fcf_record_fcf_index,
2408 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2409 addr_mode, vlan_id, 0);
2410 /* Reset running random FCF selection count */
2411 phba->fcf.eligible_fcf_cnt = 1;
2412 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
2413 /* Update running random FCF selection count */
2414 phba->fcf.eligible_fcf_cnt++;
2415 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
2416 phba->fcf.eligible_fcf_cnt);
2417 if (select_new_fcf) {
2418 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2419 "2839 Update current FCF record "
2420 "(x%x) with new FCF record (x%x)\n",
2422 bf_get(lpfc_fcf_record_fcf_index,
2424 /* Choose the new FCF by random selection */
2425 __lpfc_update_fcf_record(phba, fcf_rec,
2427 addr_mode, vlan_id, 0);
2430 spin_unlock_irq(&phba->hbalock);
2434 * This is the first suitable FCF record, choose this record for
2435 * initial best-fit FCF.
2438 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2439 "2840 Update initial FCF candidate "
2441 bf_get(lpfc_fcf_record_fcf_index,
2443 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2444 addr_mode, vlan_id, (boot_flag ?
2446 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2447 /* Setup initial running random FCF selection count */
2448 phba->fcf.eligible_fcf_cnt = 1;
2450 spin_unlock_irq(&phba->hbalock);
2454 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2455 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
2456 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
2458 * Case of FCF fast failover scan
2462 * It has not found any suitable FCF record, cancel
2463 * FCF scan inprogress, and do nothing
2465 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
2466 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2467 "2782 No suitable FCF found: "
2469 phba->fcoe_eventtag_at_fcf_scan,
2470 bf_get(lpfc_fcf_record_fcf_index,
2472 spin_lock_irq(&phba->hbalock);
2473 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2474 phba->hba_flag &= ~FCF_TS_INPROG;
2475 spin_unlock_irq(&phba->hbalock);
2476 /* Unregister in-use FCF and rescan */
2477 lpfc_printf_log(phba, KERN_INFO,
2479 "2864 On devloss tmo "
2480 "unreg in-use FCF and "
2481 "rescan FCF table\n");
2482 lpfc_unregister_fcf_rescan(phba);
2486 * Let next new FCF event trigger fast failover
2488 phba->hba_flag &= ~FCF_TS_INPROG;
2489 spin_unlock_irq(&phba->hbalock);
2493 * It has found a suitable FCF record that is not
2494 * the same as in-use FCF record, unregister the
2495 * in-use FCF record, replace the in-use FCF record
2496 * with the new FCF record, mark FCF fast failover
2497 * completed, and then start register the new FCF
2501 /* Unregister the current in-use FCF record */
2502 lpfc_unregister_fcf(phba);
2504 /* Replace in-use record with the new record */
2505 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2506 "2842 Replace in-use FCF (x%x) "
2507 "with failover FCF (x%x)\n",
2508 phba->fcf.current_rec.fcf_indx,
2509 phba->fcf.failover_rec.fcf_indx);
2510 memcpy(&phba->fcf.current_rec,
2511 &phba->fcf.failover_rec,
2512 sizeof(struct lpfc_fcf_rec));
2514 * Mark the fast FCF failover rediscovery completed
2515 * and the start of the first round of the roundrobin
2518 spin_lock_irq(&phba->hbalock);
2519 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2520 spin_unlock_irq(&phba->hbalock);
2521 /* Register to the new FCF record */
2522 lpfc_register_fcf(phba);
2525 * In case of transaction period to fast FCF failover,
2526 * do nothing when search to the end of the FCF table.
2528 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
2529 (phba->fcf.fcf_flag & FCF_REDISC_PEND))
2532 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2533 phba->fcf.fcf_flag & FCF_IN_USE) {
2535 * In case the current in-use FCF record no
2536 * longer existed during FCF discovery that
2537 * was not triggered by fast FCF failover
2538 * process, treat it as fast FCF failover.
2540 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2541 "2841 In-use FCF record (x%x) "
2542 "not reported, entering fast "
2543 "FCF failover mode scanning.\n",
2544 phba->fcf.current_rec.fcf_indx);
2545 spin_lock_irq(&phba->hbalock);
2546 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2547 spin_unlock_irq(&phba->hbalock);
2548 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2549 LPFC_FCOE_FCF_GET_FIRST);
2552 /* Register to the new FCF record */
2553 lpfc_register_fcf(phba);
2556 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
2560 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2561 lpfc_register_fcf(phba);
2567 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
2568 * @phba: pointer to lpfc hba data structure.
2569 * @mboxq: pointer to mailbox object.
2571 * This is the callback function for FLOGI failure roundrobin FCF failover
2572 * read FCF record mailbox command from the eligible FCF record bmask for
2573 * performing the failover. If the FCF read back is not valid/available, it
2574 * fails through to retrying FLOGI to the currently registered FCF again.
2575 * Otherwise, if the FCF read back is valid and available, it will set the
2576 * newly read FCF record to the failover FCF record, unregister currently
2577 * registered FCF record, copy the failover FCF record to the current
2578 * FCF record, and then register the current FCF record before proceeding
2579 * to trying FLOGI on the new failover FCF.
2582 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2584 struct fcf_record *new_fcf_record;
2585 uint32_t boot_flag, addr_mode;
2586 uint16_t next_fcf_index, fcf_index;
2587 uint16_t current_fcf_index;
2591 /* If link state is not up, stop the roundrobin failover process */
2592 if (phba->link_state < LPFC_LINK_UP) {
2593 spin_lock_irq(&phba->hbalock);
2594 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
2595 phba->hba_flag &= ~FCF_RR_INPROG;
2596 spin_unlock_irq(&phba->hbalock);
2600 /* Parse the FCF record from the non-embedded mailbox command */
2601 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2603 if (!new_fcf_record) {
2604 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2605 "2766 Mailbox command READ_FCF_RECORD "
2606 "failed to retrieve a FCF record. "
2607 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag,
2608 phba->fcf.fcf_flag);
2609 lpfc_unregister_fcf_rescan(phba);
2613 /* Get the needed parameters from FCF record */
2614 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2615 &addr_mode, &vlan_id);
2617 /* Log the FCF record information if turned on */
2618 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2621 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2623 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2624 "2848 Remove ineligible FCF (x%x) from "
2625 "from roundrobin bmask\n", fcf_index);
2626 /* Clear roundrobin bmask bit for ineligible FCF */
2627 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
2628 /* Perform next round of roundrobin FCF failover */
2629 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
2630 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
2636 if (fcf_index == phba->fcf.current_rec.fcf_indx) {
2637 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2638 "2760 Perform FLOGI roundrobin FCF failover: "
2639 "FCF (x%x) back to FCF (x%x)\n",
2640 phba->fcf.current_rec.fcf_indx, fcf_index);
2641 /* Wait 500 ms before retrying FLOGI to current FCF */
2643 lpfc_issue_init_vfi(phba->pport);
2647 /* Upload new FCF record to the failover FCF record */
2648 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2649 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2650 phba->fcf.failover_rec.fcf_indx, fcf_index);
2651 spin_lock_irq(&phba->hbalock);
2652 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2653 new_fcf_record, addr_mode, vlan_id,
2654 (boot_flag ? BOOT_ENABLE : 0));
2655 spin_unlock_irq(&phba->hbalock);
2657 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2659 /* Unregister the current in-use FCF record */
2660 lpfc_unregister_fcf(phba);
2662 /* Replace in-use record with the new record */
2663 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2664 sizeof(struct lpfc_fcf_rec));
2666 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2667 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2668 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
2671 lpfc_register_fcf(phba);
2673 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2677 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2678 * @phba: pointer to lpfc hba data structure.
2679 * @mboxq: pointer to mailbox object.
2681 * This is the callback function of read FCF record mailbox command for
2682 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
2683 * failover when a new FCF event happened. If the FCF read back is
2684 * valid/available and it passes the connection list check, it updates
2685 * the bmask for the eligible FCF record for roundrobin failover.
2688 lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2690 struct fcf_record *new_fcf_record;
2691 uint32_t boot_flag, addr_mode;
2692 uint16_t fcf_index, next_fcf_index;
2696 /* If link state is not up, no need to proceed */
2697 if (phba->link_state < LPFC_LINK_UP)
2700 /* If FCF discovery period is over, no need to proceed */
2701 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
2704 /* Parse the FCF record from the non-embedded mailbox command */
2705 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2707 if (!new_fcf_record) {
2708 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2709 "2767 Mailbox command READ_FCF_RECORD "
2710 "failed to retrieve a FCF record.\n");
2714 /* Check the connection list for eligibility */
2715 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2716 &addr_mode, &vlan_id);
2718 /* Log the FCF record information if turned on */
2719 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2725 /* Update the eligible FCF record index bmask */
2726 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2728 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
2731 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2735 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2736 * @phba: pointer to lpfc hba data structure.
2737 * @mboxq: pointer to mailbox data structure.
2739 * This function handles completion of init vfi mailbox command.
2742 lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2744 struct lpfc_vport *vport = mboxq->vport;
2747 * VFI not supported on interface type 0, just do the flogi
2748 * Also continue if the VFI is in use - just use the same one.
2750 if (mboxq->u.mb.mbxStatus &&
2751 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2752 LPFC_SLI_INTF_IF_TYPE_0) &&
2753 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2754 lpfc_printf_vlog(vport, KERN_ERR,
2756 "2891 Init VFI mailbox failed 0x%x\n",
2757 mboxq->u.mb.mbxStatus);
2758 mempool_free(mboxq, phba->mbox_mem_pool);
2759 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2763 lpfc_initial_flogi(vport);
2764 mempool_free(mboxq, phba->mbox_mem_pool);
2769 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2770 * @vport: pointer to lpfc_vport data structure.
2772 * This function issue a init_vfi mailbox command to initialize the VFI and
2773 * VPI for the physical port.
2776 lpfc_issue_init_vfi(struct lpfc_vport *vport)
2778 LPFC_MBOXQ_t *mboxq;
2780 struct lpfc_hba *phba = vport->phba;
2782 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2784 lpfc_printf_vlog(vport, KERN_ERR,
2785 LOG_MBOX, "2892 Failed to allocate "
2786 "init_vfi mailbox\n");
2789 lpfc_init_vfi(mboxq, vport);
2790 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
2791 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
2792 if (rc == MBX_NOT_FINISHED) {
2793 lpfc_printf_vlog(vport, KERN_ERR,
2794 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n");
2795 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2800 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2801 * @phba: pointer to lpfc hba data structure.
2802 * @mboxq: pointer to mailbox data structure.
2804 * This function handles completion of init vpi mailbox command.
2807 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2809 struct lpfc_vport *vport = mboxq->vport;
2810 struct lpfc_nodelist *ndlp;
2811 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2813 if (mboxq->u.mb.mbxStatus) {
2814 lpfc_printf_vlog(vport, KERN_ERR,
2816 "2609 Init VPI mailbox failed 0x%x\n",
2817 mboxq->u.mb.mbxStatus);
2818 mempool_free(mboxq, phba->mbox_mem_pool);
2819 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2822 spin_lock_irq(shost->host_lock);
2823 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
2824 spin_unlock_irq(shost->host_lock);
2826 /* If this port is physical port or FDISC is done, do reg_vpi */
2827 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
2828 ndlp = lpfc_findnode_did(vport, Fabric_DID);
2830 lpfc_printf_vlog(vport, KERN_ERR,
2832 "2731 Cannot find fabric "
2833 "controller node\n");
2835 lpfc_register_new_vport(phba, vport, ndlp);
2836 mempool_free(mboxq, phba->mbox_mem_pool);
2840 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2841 lpfc_initial_fdisc(vport);
2843 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
2844 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2845 "2606 No NPIV Fabric support\n");
2847 mempool_free(mboxq, phba->mbox_mem_pool);
2852 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2853 * @vport: pointer to lpfc_vport data structure.
2855 * This function issue a init_vpi mailbox command to initialize
2856 * VPI for the vport.
2859 lpfc_issue_init_vpi(struct lpfc_vport *vport)
2861 LPFC_MBOXQ_t *mboxq;
2864 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {
2865 vpi = lpfc_alloc_vpi(vport->phba);
2867 lpfc_printf_vlog(vport, KERN_ERR,
2869 "3303 Failed to obtain vport vpi\n");
2870 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2876 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
2878 lpfc_printf_vlog(vport, KERN_ERR,
2879 LOG_MBOX, "2607 Failed to allocate "
2880 "init_vpi mailbox\n");
2883 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
2884 mboxq->vport = vport;
2885 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
2886 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
2887 if (rc == MBX_NOT_FINISHED) {
2888 lpfc_printf_vlog(vport, KERN_ERR,
2889 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
2890 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2895 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2896 * @phba: pointer to lpfc hba data structure.
2898 * This function loops through the list of vports on the @phba and issues an
2899 * FDISC if possible.
2902 lpfc_start_fdiscs(struct lpfc_hba *phba)
2904 struct lpfc_vport **vports;
2907 vports = lpfc_create_vport_work_array(phba);
2908 if (vports != NULL) {
2909 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2910 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
2912 /* There are no vpi for this vport */
2913 if (vports[i]->vpi > phba->max_vpi) {
2914 lpfc_vport_set_state(vports[i],
2918 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2919 lpfc_vport_set_state(vports[i],
2923 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
2924 lpfc_issue_init_vpi(vports[i]);
2927 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2928 lpfc_initial_fdisc(vports[i]);
2930 lpfc_vport_set_state(vports[i],
2931 FC_VPORT_NO_FABRIC_SUPP);
2932 lpfc_printf_vlog(vports[i], KERN_ERR,
2935 "Fabric support\n");
2939 lpfc_destroy_vport_work_array(phba, vports);
2943 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2945 struct lpfc_dmabuf *dmabuf = mboxq->context1;
2946 struct lpfc_vport *vport = mboxq->vport;
2947 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2950 * VFI not supported for interface type 0, so ignore any mailbox
2951 * error (except VFI in use) and continue with the discovery.
2953 if (mboxq->u.mb.mbxStatus &&
2954 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2955 LPFC_SLI_INTF_IF_TYPE_0) &&
2956 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
2957 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2958 "2018 REG_VFI mbxStatus error x%x "
2960 mboxq->u.mb.mbxStatus, vport->port_state);
2961 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
2962 /* FLOGI failed, use loop map to make discovery list */
2963 lpfc_disc_list_loopmap(vport);
2964 /* Start discovery */
2965 lpfc_disc_start(vport);
2968 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2972 /* If the VFI is already registered, there is nothing else to do
2973 * Unless this was a VFI update and we are in PT2PT mode, then
2974 * we should drop through to set the port state to ready.
2976 if (vport->fc_flag & FC_VFI_REGISTERED)
2977 if (!(phba->sli_rev == LPFC_SLI_REV4 &&
2978 vport->fc_flag & FC_PT2PT))
2981 /* The VPI is implicitly registered when the VFI is registered */
2982 spin_lock_irq(shost->host_lock);
2983 vport->vpi_state |= LPFC_VPI_REGISTERED;
2984 vport->fc_flag |= FC_VFI_REGISTERED;
2985 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2986 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
2987 spin_unlock_irq(shost->host_lock);
2989 /* In case SLI4 FC loopback test, we are ready */
2990 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2991 (phba->link_flag & LS_LOOPBACK_MODE)) {
2992 phba->link_state = LPFC_HBA_READY;
2996 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2997 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
2998 "alpacnt:%d LinkState:%x topology:%x\n",
2999 vport->port_state, vport->fc_flag, vport->fc_myDID,
3000 vport->phba->alpa_map[0],
3001 phba->link_state, phba->fc_topology);
3003 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3005 * For private loop or for NPort pt2pt,
3006 * just start discovery and we are done.
3008 if ((vport->fc_flag & FC_PT2PT) ||
3009 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
3010 !(vport->fc_flag & FC_PUBLIC_LOOP))) {
3012 /* Use loop map to make discovery list */
3013 lpfc_disc_list_loopmap(vport);
3014 /* Start discovery */
3015 if (vport->fc_flag & FC_PT2PT)
3016 vport->port_state = LPFC_VPORT_READY;
3018 lpfc_disc_start(vport);
3020 lpfc_start_fdiscs(phba);
3021 lpfc_do_scr_ns_plogi(phba, vport);
3026 mempool_free(mboxq, phba->mbox_mem_pool);
3028 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
3035 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3037 MAILBOX_t *mb = &pmb->u.mb;
3038 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
3039 struct lpfc_vport *vport = pmb->vport;
3040 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3041 struct serv_parm *sp = &vport->fc_sparam;
3044 /* Check for error */
3045 if (mb->mbxStatus) {
3046 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
3047 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3048 "0319 READ_SPARAM mbxStatus error x%x "
3050 mb->mbxStatus, vport->port_state);
3051 lpfc_linkdown(phba);
3055 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
3056 sizeof (struct serv_parm));
3058 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
3059 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
3060 ed_tov = (ed_tov + 999999) / 1000000;
3062 phba->fc_edtov = ed_tov;
3063 phba->fc_ratov = (2 * ed_tov) / 1000;
3064 if (phba->fc_ratov < FF_DEF_RATOV) {
3065 /* RA_TOV should be atleast 10sec for initial flogi */
3066 phba->fc_ratov = FF_DEF_RATOV;
3069 lpfc_update_vport_wwn(vport);
3070 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3071 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3072 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
3073 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
3076 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3078 mempool_free(pmb, phba->mbox_mem_pool);
3082 pmb->context1 = NULL;
3083 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3085 lpfc_issue_clear_la(phba, vport);
3086 mempool_free(pmb, phba->mbox_mem_pool);
3091 lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
3093 struct lpfc_vport *vport = phba->pport;
3094 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
3095 struct Scsi_Host *shost;
3097 struct lpfc_dmabuf *mp;
3099 struct fcf_record *fcf_record;
3100 uint32_t fc_flags = 0;
3102 spin_lock_irq(&phba->hbalock);
3103 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
3105 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3106 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
3107 case LPFC_LINK_SPEED_1GHZ:
3108 case LPFC_LINK_SPEED_2GHZ:
3109 case LPFC_LINK_SPEED_4GHZ:
3110 case LPFC_LINK_SPEED_8GHZ:
3111 case LPFC_LINK_SPEED_10GHZ:
3112 case LPFC_LINK_SPEED_16GHZ:
3113 case LPFC_LINK_SPEED_32GHZ:
3116 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
3121 if (phba->fc_topology &&
3122 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {
3123 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3124 "3314 Toplogy changed was 0x%x is 0x%x\n",
3126 bf_get(lpfc_mbx_read_top_topology, la));
3127 phba->fc_topology_changed = 1;
3130 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
3131 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
3133 shost = lpfc_shost_from_vport(vport);
3134 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3135 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
3137 /* if npiv is enabled and this adapter supports npiv log
3138 * a message that npiv is not supported in this topology
3140 if (phba->cfg_enable_npiv && phba->max_vpi)
3141 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3142 "1309 Link Up Event npiv not supported in loop "
3144 /* Get Loop Map information */
3145 if (bf_get(lpfc_mbx_read_top_il, la))
3146 fc_flags |= FC_LBIT;
3148 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
3149 i = la->lilpBde64.tus.f.bdeSize;
3152 phba->alpa_map[0] = 0;
3154 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
3165 numalpa = phba->alpa_map[0];
3167 while (j < numalpa) {
3168 memset(un.pamap, 0, 16);
3169 for (k = 1; j < numalpa; k++) {
3171 phba->alpa_map[j + 1];
3176 /* Link Up Event ALPA map */
3177 lpfc_printf_log(phba,
3180 "1304 Link Up Event "
3181 "ALPA map Data: x%x "
3183 un.pa.wd1, un.pa.wd2,
3184 un.pa.wd3, un.pa.wd4);
3189 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
3190 if (phba->max_vpi && phba->cfg_enable_npiv &&
3191 (phba->sli_rev >= LPFC_SLI_REV3))
3192 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3194 vport->fc_myDID = phba->fc_pref_DID;
3195 fc_flags |= FC_LBIT;
3197 spin_unlock_irq(&phba->hbalock);
3200 spin_lock_irq(shost->host_lock);
3201 vport->fc_flag |= fc_flags;
3202 spin_unlock_irq(shost->host_lock);
3206 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3210 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
3212 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3215 sparam_mbox->vport = vport;
3216 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
3217 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
3218 if (rc == MBX_NOT_FINISHED) {
3219 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
3220 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3222 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3226 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3227 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3230 vport->port_state = LPFC_LOCAL_CFG_LINK;
3231 lpfc_config_link(phba, cfglink_mbox);
3232 cfglink_mbox->vport = vport;
3233 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
3234 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
3235 if (rc == MBX_NOT_FINISHED) {
3236 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
3240 vport->port_state = LPFC_VPORT_UNKNOWN;
3242 * Add the driver's default FCF record at FCF index 0 now. This
3243 * is phase 1 implementation that support FCF index 0 and driver
3246 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
3247 fcf_record = kzalloc(sizeof(struct fcf_record),
3249 if (unlikely(!fcf_record)) {
3250 lpfc_printf_log(phba, KERN_ERR,
3252 "2554 Could not allocate memory for "
3258 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
3259 LPFC_FCOE_FCF_DEF_INDEX);
3260 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
3262 lpfc_printf_log(phba, KERN_ERR,
3264 "2013 Could not manually add FCF "
3265 "record 0, status %d\n", rc);
3273 * The driver is expected to do FIP/FCF. Call the port
3274 * and get the FCF Table.
3276 spin_lock_irq(&phba->hbalock);
3277 if (phba->hba_flag & FCF_TS_INPROG) {
3278 spin_unlock_irq(&phba->hbalock);
3281 /* This is the initial FCF discovery scan */
3282 phba->fcf.fcf_flag |= FCF_INIT_DISC;
3283 spin_unlock_irq(&phba->hbalock);
3284 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3285 "2778 Start FCF table scan at linkup\n");
3286 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3287 LPFC_FCOE_FCF_GET_FIRST);
3289 spin_lock_irq(&phba->hbalock);
3290 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
3291 spin_unlock_irq(&phba->hbalock);
3294 /* Reset FCF roundrobin bmask for new discovery */
3295 lpfc_sli4_clear_fcf_rr_bmask(phba);
3300 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3301 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3302 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
3303 vport->port_state, sparam_mbox, cfglink_mbox);
3304 lpfc_issue_clear_la(phba, vport);
3309 lpfc_enable_la(struct lpfc_hba *phba)
3312 struct lpfc_sli *psli = &phba->sli;
3313 spin_lock_irq(&phba->hbalock);
3314 psli->sli_flag |= LPFC_PROCESS_LA;
3315 if (phba->sli_rev <= LPFC_SLI_REV3) {
3316 control = readl(phba->HCregaddr);
3317 control |= HC_LAINT_ENA;
3318 writel(control, phba->HCregaddr);
3319 readl(phba->HCregaddr); /* flush */
3321 spin_unlock_irq(&phba->hbalock);
3325 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
3327 lpfc_linkdown(phba);
3328 lpfc_enable_la(phba);
3329 lpfc_unregister_unused_fcf(phba);
3330 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3335 * This routine handles processing a READ_TOPOLOGY mailbox
3336 * command upon completion. It is setup in the LPFC_MBOXQ
3337 * as the completion routine when the command is
3338 * handed off to the SLI layer. SLI4 only.
3341 lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3343 struct lpfc_vport *vport = pmb->vport;
3344 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3345 struct lpfc_mbx_read_top *la;
3346 struct lpfc_sli_ring *pring;
3347 MAILBOX_t *mb = &pmb->u.mb;
3348 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3351 /* Unblock ELS traffic */
3352 pring = lpfc_phba_elsring(phba);
3354 pring->flag &= ~LPFC_STOP_IOCB_EVENT;
3356 /* Check for error */
3357 if (mb->mbxStatus) {
3358 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3359 "1307 READ_LA mbox error x%x state x%x\n",
3360 mb->mbxStatus, vport->port_state);
3361 lpfc_mbx_issue_link_down(phba);
3362 phba->link_state = LPFC_HBA_ERROR;
3363 goto lpfc_mbx_cmpl_read_topology_free_mbuf;
3366 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3367 attn_type = bf_get(lpfc_mbx_read_top_att_type, la);
3369 memcpy(&phba->alpa_map[0], mp->virt, 128);
3371 spin_lock_irq(shost->host_lock);
3372 if (bf_get(lpfc_mbx_read_top_pb, la))
3373 vport->fc_flag |= FC_BYPASSED_MODE;
3375 vport->fc_flag &= ~FC_BYPASSED_MODE;
3376 spin_unlock_irq(shost->host_lock);
3378 if (phba->fc_eventTag <= la->eventTag) {
3379 phba->fc_stat.LinkMultiEvent++;
3380 if (attn_type == LPFC_ATT_LINK_UP)
3381 if (phba->fc_eventTag != 0)
3382 lpfc_linkdown(phba);
3385 phba->fc_eventTag = la->eventTag;
3386 if (phba->sli_rev < LPFC_SLI_REV4) {
3387 spin_lock_irq(&phba->hbalock);
3388 if (bf_get(lpfc_mbx_read_top_mm, la))
3389 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
3391 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
3392 spin_unlock_irq(&phba->hbalock);
3395 phba->link_events++;
3396 if ((attn_type == LPFC_ATT_LINK_UP) &&
3397 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) {
3398 phba->fc_stat.LinkUp++;
3399 if (phba->link_flag & LS_LOOPBACK_MODE) {
3400 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3401 "1306 Link Up Event in loop back mode "
3402 "x%x received Data: x%x x%x x%x x%x\n",
3403 la->eventTag, phba->fc_eventTag,
3404 bf_get(lpfc_mbx_read_top_alpa_granted,
3406 bf_get(lpfc_mbx_read_top_link_spd, la),
3409 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3410 "1303 Link Up Event x%x received "
3411 "Data: x%x x%x x%x x%x x%x x%x %d\n",
3412 la->eventTag, phba->fc_eventTag,
3413 bf_get(lpfc_mbx_read_top_alpa_granted,
3415 bf_get(lpfc_mbx_read_top_link_spd, la),
3417 bf_get(lpfc_mbx_read_top_mm, la),
3418 bf_get(lpfc_mbx_read_top_fa, la),
3419 phba->wait_4_mlo_maint_flg);
3421 lpfc_mbx_process_link_up(phba, la);
3422 } else if (attn_type == LPFC_ATT_LINK_DOWN ||
3423 attn_type == LPFC_ATT_UNEXP_WWPN) {
3424 phba->fc_stat.LinkDown++;
3425 if (phba->link_flag & LS_LOOPBACK_MODE)
3426 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3427 "1308 Link Down Event in loop back mode "
3429 "Data: x%x x%x x%x\n",
3430 la->eventTag, phba->fc_eventTag,
3431 phba->pport->port_state, vport->fc_flag);
3432 else if (attn_type == LPFC_ATT_UNEXP_WWPN)
3433 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3434 "1313 Link Down UNEXP WWPN Event x%x received "
3435 "Data: x%x x%x x%x x%x x%x\n",
3436 la->eventTag, phba->fc_eventTag,
3437 phba->pport->port_state, vport->fc_flag,
3438 bf_get(lpfc_mbx_read_top_mm, la),
3439 bf_get(lpfc_mbx_read_top_fa, la));
3441 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3442 "1305 Link Down Event x%x received "
3443 "Data: x%x x%x x%x x%x x%x\n",
3444 la->eventTag, phba->fc_eventTag,
3445 phba->pport->port_state, vport->fc_flag,
3446 bf_get(lpfc_mbx_read_top_mm, la),
3447 bf_get(lpfc_mbx_read_top_fa, la));
3448 lpfc_mbx_issue_link_down(phba);
3450 if (phba->sli.sli_flag & LPFC_MENLO_MAINT &&
3451 attn_type == LPFC_ATT_LINK_UP) {
3452 if (phba->link_state != LPFC_LINK_DOWN) {
3453 phba->fc_stat.LinkDown++;
3454 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3455 "1312 Link Down Event x%x received "
3456 "Data: x%x x%x x%x\n",
3457 la->eventTag, phba->fc_eventTag,
3458 phba->pport->port_state, vport->fc_flag);
3459 lpfc_mbx_issue_link_down(phba);
3461 lpfc_enable_la(phba);
3463 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3464 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3465 "Data: x%x x%x x%x\n",
3466 la->eventTag, phba->fc_eventTag,
3467 phba->pport->port_state, vport->fc_flag);
3469 * The cmnd that triggered this will be waiting for this
3472 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3473 if (phba->wait_4_mlo_maint_flg) {
3474 phba->wait_4_mlo_maint_flg = 0;
3475 wake_up_interruptible(&phba->wait_4_mlo_m_q);
3479 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3480 bf_get(lpfc_mbx_read_top_fa, la)) {
3481 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
3482 lpfc_issue_clear_la(phba, vport);
3483 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
3485 bf_get(lpfc_mbx_read_top_fa, la));
3488 lpfc_mbx_cmpl_read_topology_free_mbuf:
3489 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3491 mempool_free(pmb, phba->mbox_mem_pool);
3496 * This routine handles processing a REG_LOGIN mailbox
3497 * command upon completion. It is setup in the LPFC_MBOXQ
3498 * as the completion routine when the command is
3499 * handed off to the SLI layer.
3502 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3504 struct lpfc_vport *vport = pmb->vport;
3505 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3506 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3507 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3509 pmb->context1 = NULL;
3510 pmb->context2 = NULL;
3512 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3513 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n",
3514 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3515 kref_read(&ndlp->kref),
3516 ndlp->nlp_usg_map, ndlp);
3517 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
3518 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3520 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
3521 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
3522 /* We rcvd a rscn after issuing this
3523 * mbox reg login, we may have cycled
3524 * back through the state and be
3525 * back at reg login state so this
3526 * mbox needs to be ignored becase
3527 * there is another reg login in
3530 spin_lock_irq(shost->host_lock);
3531 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
3532 spin_unlock_irq(shost->host_lock);
3535 * We cannot leave the RPI registered because
3536 * if we go thru discovery again for this ndlp
3537 * a subsequent REG_RPI will fail.
3539 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3540 lpfc_unreg_rpi(vport, ndlp);
3543 /* Call state machine */
3544 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
3546 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3548 mempool_free(pmb, phba->mbox_mem_pool);
3549 /* decrement the node reference count held for this callback
3558 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3560 MAILBOX_t *mb = &pmb->u.mb;
3561 struct lpfc_vport *vport = pmb->vport;
3562 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3564 switch (mb->mbxStatus) {
3567 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3568 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3571 /* If VPI is busy, reset the HBA */
3573 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3574 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3575 vport->vpi, mb->mbxStatus);
3576 if (!(phba->pport->load_flag & FC_UNLOADING))
3577 lpfc_workq_post_event(phba, NULL, NULL,
3578 LPFC_EVT_RESET_HBA);
3580 spin_lock_irq(shost->host_lock);
3581 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
3582 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3583 spin_unlock_irq(shost->host_lock);
3584 vport->unreg_vpi_cmpl = VPORT_OK;
3585 mempool_free(pmb, phba->mbox_mem_pool);
3586 lpfc_cleanup_vports_rrqs(vport, NULL);
3588 * This shost reference might have been taken at the beginning of
3589 * lpfc_vport_delete()
3591 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
3592 scsi_host_put(shost);
3596 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
3598 struct lpfc_hba *phba = vport->phba;
3602 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3606 lpfc_unreg_vpi(phba, vport->vpi, mbox);
3607 mbox->vport = vport;
3608 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
3609 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3610 if (rc == MBX_NOT_FINISHED) {
3611 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3612 "1800 Could not issue unreg_vpi\n");
3613 mempool_free(mbox, phba->mbox_mem_pool);
3614 vport->unreg_vpi_cmpl = VPORT_ERROR;
3621 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3623 struct lpfc_vport *vport = pmb->vport;
3624 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3625 MAILBOX_t *mb = &pmb->u.mb;
3627 switch (mb->mbxStatus) {
3631 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3632 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3634 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3635 spin_lock_irq(shost->host_lock);
3636 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
3637 spin_unlock_irq(shost->host_lock);
3638 vport->fc_myDID = 0;
3640 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3641 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
3642 if (phba->nvmet_support)
3643 lpfc_nvmet_update_targetport(phba);
3645 lpfc_nvme_update_localport(vport);
3650 spin_lock_irq(shost->host_lock);
3651 vport->vpi_state |= LPFC_VPI_REGISTERED;
3652 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
3653 spin_unlock_irq(shost->host_lock);
3654 vport->num_disc_nodes = 0;
3655 /* go thru NPR list and issue ELS PLOGIs */
3656 if (vport->fc_npr_cnt)
3657 lpfc_els_disc_plogi(vport);
3659 if (!vport->num_disc_nodes) {
3660 spin_lock_irq(shost->host_lock);
3661 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3662 spin_unlock_irq(shost->host_lock);
3663 lpfc_can_disctmo(vport);
3665 vport->port_state = LPFC_VPORT_READY;
3668 mempool_free(pmb, phba->mbox_mem_pool);
3673 * lpfc_create_static_vport - Read HBA config region to create static vports.
3674 * @phba: pointer to lpfc hba data structure.
3676 * This routine issue a DUMP mailbox command for config region 22 to get
3677 * the list of static vports to be created. The function create vports
3678 * based on the information returned from the HBA.
3681 lpfc_create_static_vport(struct lpfc_hba *phba)
3683 LPFC_MBOXQ_t *pmb = NULL;
3685 struct static_vport_info *vport_info;
3686 int mbx_wait_rc = 0, i;
3687 struct fc_vport_identifiers vport_id;
3688 struct fc_vport *new_fc_vport;
3689 struct Scsi_Host *shost;
3690 struct lpfc_vport *vport;
3691 uint16_t offset = 0;
3692 uint8_t *vport_buff;
3693 struct lpfc_dmabuf *mp;
3694 uint32_t byte_count = 0;
3696 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3698 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3699 "0542 lpfc_create_static_vport failed to"
3700 " allocate mailbox memory\n");
3703 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
3706 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
3708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3709 "0543 lpfc_create_static_vport failed to"
3710 " allocate vport_info\n");
3711 mempool_free(pmb, phba->mbox_mem_pool);
3715 vport_buff = (uint8_t *) vport_info;
3717 /* free dma buffer from previous round */
3718 if (pmb->context1) {
3719 mp = (struct lpfc_dmabuf *)pmb->context1;
3720 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3723 if (lpfc_dump_static_vport(phba, pmb, offset))
3726 pmb->vport = phba->pport;
3727 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,
3730 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {
3731 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3732 "0544 lpfc_create_static_vport failed to"
3733 " issue dump mailbox command ret 0x%x "
3735 mbx_wait_rc, mb->mbxStatus);
3739 if (phba->sli_rev == LPFC_SLI_REV4) {
3740 byte_count = pmb->u.mqe.un.mb_words[5];
3741 mp = (struct lpfc_dmabuf *)pmb->context1;
3742 if (byte_count > sizeof(struct static_vport_info) -
3744 byte_count = sizeof(struct static_vport_info)
3746 memcpy(vport_buff + offset, mp->virt, byte_count);
3747 offset += byte_count;
3749 if (mb->un.varDmp.word_cnt >
3750 sizeof(struct static_vport_info) - offset)
3751 mb->un.varDmp.word_cnt =
3752 sizeof(struct static_vport_info)
3754 byte_count = mb->un.varDmp.word_cnt;
3755 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
3756 vport_buff + offset,
3759 offset += byte_count;
3762 } while (byte_count &&
3763 offset < sizeof(struct static_vport_info));
3766 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
3767 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
3768 != VPORT_INFO_REV)) {
3769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3770 "0545 lpfc_create_static_vport bad"
3771 " information header 0x%x 0x%x\n",
3772 le32_to_cpu(vport_info->signature),
3773 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
3778 shost = lpfc_shost_from_vport(phba->pport);
3780 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
3781 memset(&vport_id, 0, sizeof(vport_id));
3782 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
3783 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
3784 if (!vport_id.port_name || !vport_id.node_name)
3787 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
3788 vport_id.vport_type = FC_PORTTYPE_NPIV;
3789 vport_id.disable = false;
3790 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
3792 if (!new_fc_vport) {
3793 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3794 "0546 lpfc_create_static_vport failed to"
3799 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
3800 vport->vport_flag |= STATIC_VPORT;
3805 if (mbx_wait_rc != MBX_TIMEOUT) {
3806 if (pmb->context1) {
3807 mp = (struct lpfc_dmabuf *)pmb->context1;
3808 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3811 mempool_free(pmb, phba->mbox_mem_pool);
3818 * This routine handles processing a Fabric REG_LOGIN mailbox
3819 * command upon completion. It is setup in the LPFC_MBOXQ
3820 * as the completion routine when the command is
3821 * handed off to the SLI layer.
3824 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3826 struct lpfc_vport *vport = pmb->vport;
3827 MAILBOX_t *mb = &pmb->u.mb;
3828 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3829 struct lpfc_nodelist *ndlp;
3830 struct Scsi_Host *shost;
3832 ndlp = (struct lpfc_nodelist *) pmb->context2;
3833 pmb->context1 = NULL;
3834 pmb->context2 = NULL;
3836 if (mb->mbxStatus) {
3837 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3838 "0258 Register Fabric login error: 0x%x\n",
3840 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3842 mempool_free(pmb, phba->mbox_mem_pool);
3844 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3845 /* FLOGI failed, use loop map to make discovery list */
3846 lpfc_disc_list_loopmap(vport);
3848 /* Start discovery */
3849 lpfc_disc_start(vport);
3850 /* Decrement the reference count to ndlp after the
3851 * reference to the ndlp are done.
3857 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3858 /* Decrement the reference count to ndlp after the reference
3859 * to the ndlp are done.
3865 if (phba->sli_rev < LPFC_SLI_REV4)
3866 ndlp->nlp_rpi = mb->un.varWords[0];
3867 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3868 ndlp->nlp_type |= NLP_FABRIC;
3869 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3871 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
3872 /* when physical port receive logo donot start
3873 * vport discovery */
3874 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
3875 lpfc_start_fdiscs(phba);
3877 shost = lpfc_shost_from_vport(vport);
3878 spin_lock_irq(shost->host_lock);
3879 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
3880 spin_unlock_irq(shost->host_lock);
3882 lpfc_do_scr_ns_plogi(phba, vport);
3885 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3887 mempool_free(pmb, phba->mbox_mem_pool);
3889 /* Drop the reference count from the mbox at the end after
3890 * all the current reference to the ndlp have been done.
3897 * This routine will issue a GID_FT for each FC4 Type supported
3898 * by the driver. ALL GID_FTs must complete before discovery is started.
3901 lpfc_issue_gidft(struct lpfc_vport *vport)
3903 struct lpfc_hba *phba = vport->phba;
3905 /* Good status, issue CT Request to NameServer */
3906 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3907 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) {
3908 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) {
3909 /* Cannot issue NameServer FCP Query, so finish up
3912 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
3913 "0604 %s FC TYPE %x %s\n",
3914 "Failed to issue GID_FT to ",
3916 "Finishing discovery.");
3922 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
3923 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
3924 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) {
3925 /* Cannot issue NameServer NVME Query, so finish up
3928 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
3929 "0605 %s FC_TYPE %x %s %d\n",
3930 "Failed to issue GID_FT to ",
3932 "Finishing discovery: gidftinp ",
3934 if (vport->gidft_inp == 0)
3939 return vport->gidft_inp;
3943 * This routine handles processing a NameServer REG_LOGIN mailbox
3944 * command upon completion. It is setup in the LPFC_MBOXQ
3945 * as the completion routine when the command is
3946 * handed off to the SLI layer.
3949 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3951 MAILBOX_t *mb = &pmb->u.mb;
3952 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3953 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3954 struct lpfc_vport *vport = pmb->vport;
3956 pmb->context1 = NULL;
3957 pmb->context2 = NULL;
3958 vport->gidft_inp = 0;
3960 if (mb->mbxStatus) {
3961 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3962 "0260 Register NameServer error: 0x%x\n",
3966 /* decrement the node reference count held for this
3967 * callback function.
3970 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3972 mempool_free(pmb, phba->mbox_mem_pool);
3974 /* If no other thread is using the ndlp, free it */
3975 lpfc_nlp_not_used(ndlp);
3977 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3979 * RegLogin failed, use loop map to make discovery
3982 lpfc_disc_list_loopmap(vport);
3984 /* Start discovery */
3985 lpfc_disc_start(vport);
3988 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3992 if (phba->sli_rev < LPFC_SLI_REV4)
3993 ndlp->nlp_rpi = mb->un.varWords[0];
3994 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
3995 ndlp->nlp_type |= NLP_FABRIC;
3996 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
3997 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3998 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n",
3999 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
4000 kref_read(&ndlp->kref),
4001 ndlp->nlp_usg_map, ndlp);
4003 if (vport->port_state < LPFC_VPORT_READY) {
4004 /* Link up discovery requires Fabric registration. */
4005 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
4006 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
4007 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
4008 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
4010 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4011 (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP))
4012 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP);
4014 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
4015 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME))
4016 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0,
4019 /* Issue SCR just before NameServer GID_FT Query */
4020 lpfc_issue_els_scr(vport, SCR_DID, 0);
4023 vport->fc_ns_retry = 0;
4024 if (lpfc_issue_gidft(vport) == 0)
4028 * At this point in time we may need to wait for multiple
4029 * SLI_CTNS_GID_FT CT commands to complete before we start discovery.
4031 * decrement the node reference count held for this
4032 * callback function.
4035 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4037 mempool_free(pmb, phba->mbox_mem_pool);
4043 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4045 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4046 struct fc_rport *rport;
4047 struct lpfc_rport_data *rdata;
4048 struct fc_rport_identifiers rport_ids;
4049 struct lpfc_hba *phba = vport->phba;
4051 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
4054 /* Remote port has reappeared. Re-register w/ FC transport */
4055 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
4056 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
4057 rport_ids.port_id = ndlp->nlp_DID;
4058 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
4061 * We leave our node pointer in rport->dd_data when we unregister a
4062 * FCP target port. But fc_remote_port_add zeros the space to which
4063 * rport->dd_data points. So, if we're reusing a previously
4064 * registered port, drop the reference that we took the last time we
4065 * registered the port.
4067 rport = ndlp->rport;
4069 rdata = rport->dd_data;
4070 /* break the link before dropping the ref */
4073 if (rdata->pnode == ndlp)
4075 rdata->pnode = NULL;
4077 /* drop reference for earlier registeration */
4078 put_device(&rport->dev);
4081 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
4082 "rport add: did:x%x flg:x%x type x%x",
4083 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4085 /* Don't add the remote port if unloading. */
4086 if (vport->load_flag & FC_UNLOADING)
4089 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
4090 if (!rport || !get_device(&rport->dev)) {
4091 dev_printk(KERN_WARNING, &phba->pcidev->dev,
4092 "Warning: fc_remote_port_add failed\n");
4096 /* initialize static port data */
4097 rport->maxframe_size = ndlp->nlp_maxframe;
4098 rport->supported_classes = ndlp->nlp_class_sup;
4099 rdata = rport->dd_data;
4100 rdata->pnode = lpfc_nlp_get(ndlp);
4102 if (ndlp->nlp_type & NLP_FCP_TARGET)
4103 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
4104 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
4105 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
4107 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
4108 fc_remote_port_rolechg(rport, rport_ids.roles);
4110 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4111 "3183 rport register x%06x, rport %p role x%x\n",
4112 ndlp->nlp_DID, rport, rport_ids.roles);
4114 if ((rport->scsi_target_id != -1) &&
4115 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
4116 ndlp->nlp_sid = rport->scsi_target_id;
4122 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
4124 struct fc_rport *rport = ndlp->rport;
4125 struct lpfc_vport *vport = ndlp->vport;
4126 struct lpfc_hba *phba = vport->phba;
4128 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
4131 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
4132 "rport delete: did:x%x flg:x%x type x%x",
4133 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4135 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4136 "3184 rport unregister x%06x, rport %p\n",
4137 ndlp->nlp_DID, rport);
4139 fc_remote_port_delete(rport);
4145 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
4147 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4149 spin_lock_irq(shost->host_lock);
4151 case NLP_STE_UNUSED_NODE:
4152 vport->fc_unused_cnt += count;
4154 case NLP_STE_PLOGI_ISSUE:
4155 vport->fc_plogi_cnt += count;
4157 case NLP_STE_ADISC_ISSUE:
4158 vport->fc_adisc_cnt += count;
4160 case NLP_STE_REG_LOGIN_ISSUE:
4161 vport->fc_reglogin_cnt += count;
4163 case NLP_STE_PRLI_ISSUE:
4164 vport->fc_prli_cnt += count;
4166 case NLP_STE_UNMAPPED_NODE:
4167 vport->fc_unmap_cnt += count;
4169 case NLP_STE_MAPPED_NODE:
4170 vport->fc_map_cnt += count;
4172 case NLP_STE_NPR_NODE:
4173 if (vport->fc_npr_cnt == 0 && count == -1)
4174 vport->fc_npr_cnt = 0;
4176 vport->fc_npr_cnt += count;
4179 spin_unlock_irq(shost->host_lock);
4183 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4184 int old_state, int new_state)
4186 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4188 if (new_state == NLP_STE_UNMAPPED_NODE) {
4189 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4190 ndlp->nlp_type |= NLP_FC_NODE;
4192 if (new_state == NLP_STE_MAPPED_NODE)
4193 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4194 if (new_state == NLP_STE_NPR_NODE)
4195 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
4197 /* FCP and NVME Transport interface */
4198 if ((old_state == NLP_STE_MAPPED_NODE ||
4199 old_state == NLP_STE_UNMAPPED_NODE)) {
4201 vport->phba->nport_event_cnt++;
4202 lpfc_unregister_remote_port(ndlp);
4205 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) {
4206 vport->phba->nport_event_cnt++;
4207 if (vport->phba->nvmet_support == 0)
4209 lpfc_nvme_unregister_port(vport, ndlp);
4211 /* NVMET has no upcall. */
4216 /* FCP and NVME Transport interfaces */
4218 if (new_state == NLP_STE_MAPPED_NODE ||
4219 new_state == NLP_STE_UNMAPPED_NODE) {
4220 if (ndlp->nlp_fc4_type & NLP_FC4_FCP ||
4221 ndlp->nlp_DID == Fabric_DID ||
4222 ndlp->nlp_DID == NameServer_DID ||
4223 ndlp->nlp_DID == FDMI_DID) {
4224 vport->phba->nport_event_cnt++;
4226 * Tell the fc transport about the port, if we haven't
4227 * already. If we have, and it's a scsi entity, be
4229 lpfc_register_remote_port(vport, ndlp);
4231 /* Notify the NVME transport of this new rport. */
4232 if (vport->phba->sli_rev >= LPFC_SLI_REV4 &&
4233 ndlp->nlp_fc4_type & NLP_FC4_NVME) {
4234 if (vport->phba->nvmet_support == 0) {
4235 /* Register this rport with the transport.
4236 * Initiators take the NDLP ref count in
4239 vport->phba->nport_event_cnt++;
4240 lpfc_nvme_register_port(vport, ndlp);
4242 /* Just take an NDLP ref count since the
4243 * target does not register rports.
4250 if ((new_state == NLP_STE_MAPPED_NODE) &&
4251 (vport->stat_data_enabled)) {
4253 * A new target is discovered, if there is no buffer for
4254 * statistical data collection allocate buffer.
4256 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
4257 sizeof(struct lpfc_scsicmd_bkt),
4260 if (!ndlp->lat_data)
4261 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
4262 "0286 lpfc_nlp_state_cleanup failed to "
4263 "allocate statistical data buffer DID "
4264 "0x%x\n", ndlp->nlp_DID);
4267 * If the node just added to Mapped list was an FCP target,
4268 * but the remote port registration failed or assigned a target
4269 * id outside the presentable range - move the node to the
4272 if ((new_state == NLP_STE_MAPPED_NODE) &&
4273 (ndlp->nlp_type & NLP_FCP_TARGET) &&
4275 ndlp->rport->scsi_target_id == -1 ||
4276 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
4277 spin_lock_irq(shost->host_lock);
4278 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
4279 spin_unlock_irq(shost->host_lock);
4280 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4285 lpfc_nlp_state_name(char *buffer, size_t size, int state)
4287 static char *states[] = {
4288 [NLP_STE_UNUSED_NODE] = "UNUSED",
4289 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
4290 [NLP_STE_ADISC_ISSUE] = "ADISC",
4291 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
4292 [NLP_STE_PRLI_ISSUE] = "PRLI",
4293 [NLP_STE_LOGO_ISSUE] = "LOGO",
4294 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
4295 [NLP_STE_MAPPED_NODE] = "MAPPED",
4296 [NLP_STE_NPR_NODE] = "NPR",
4299 if (state < NLP_STE_MAX_STATE && states[state])
4300 strlcpy(buffer, states[state], size);
4302 snprintf(buffer, size, "unknown (%d)", state);
4307 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4310 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4311 int old_state = ndlp->nlp_state;
4312 char name1[16], name2[16];
4314 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4315 "0904 NPort state transition x%06x, %s -> %s\n",
4317 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
4318 lpfc_nlp_state_name(name2, sizeof(name2), state));
4320 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4321 "node statechg did:x%x old:%d ste:%d",
4322 ndlp->nlp_DID, old_state, state);
4324 if (old_state == NLP_STE_NPR_NODE &&
4325 state != NLP_STE_NPR_NODE)
4326 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4327 if (old_state == NLP_STE_UNMAPPED_NODE) {
4328 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
4329 ndlp->nlp_type &= ~NLP_FC_NODE;
4332 if (list_empty(&ndlp->nlp_listp)) {
4333 spin_lock_irq(shost->host_lock);
4334 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4335 spin_unlock_irq(shost->host_lock);
4336 } else if (old_state)
4337 lpfc_nlp_counters(vport, old_state, -1);
4339 ndlp->nlp_state = state;
4340 lpfc_nlp_counters(vport, state, 1);
4341 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
4345 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4347 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4349 if (list_empty(&ndlp->nlp_listp)) {
4350 spin_lock_irq(shost->host_lock);
4351 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4352 spin_unlock_irq(shost->host_lock);
4357 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4359 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4361 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4362 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4363 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4364 spin_lock_irq(shost->host_lock);
4365 list_del_init(&ndlp->nlp_listp);
4366 spin_unlock_irq(shost->host_lock);
4367 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4368 NLP_STE_UNUSED_NODE);
4372 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4374 lpfc_cancel_retry_delay_tmo(vport, ndlp);
4375 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4376 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4377 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4378 NLP_STE_UNUSED_NODE);
4381 * lpfc_initialize_node - Initialize all fields of node object
4382 * @vport: Pointer to Virtual Port object.
4383 * @ndlp: Pointer to FC node object.
4384 * @did: FC_ID of the node.
4386 * This function is always called when node object need to be initialized.
4387 * It initializes all the fields of the node object. Although the reference
4388 * to phba from @ndlp can be obtained indirectly through it's reference to
4389 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4390 * to the life-span of the @ndlp might go beyond the existence of @vport as
4391 * the final release of ndlp is determined by its reference count. And, the
4392 * operation on @ndlp needs the reference to phba.
4395 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4398 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
4399 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
4400 setup_timer(&ndlp->nlp_delayfunc, lpfc_els_retry_delay,
4401 (unsigned long)ndlp);
4402 ndlp->nlp_DID = did;
4403 ndlp->vport = vport;
4404 ndlp->phba = vport->phba;
4405 ndlp->nlp_sid = NLP_NO_SID;
4406 ndlp->nlp_fc4_type = NLP_FC4_NONE;
4407 kref_init(&ndlp->kref);
4408 NLP_INT_NODE_ACT(ndlp);
4409 atomic_set(&ndlp->cmd_pending, 0);
4410 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4413 struct lpfc_nodelist *
4414 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4417 struct lpfc_hba *phba = vport->phba;
4419 unsigned long flags;
4420 unsigned long *active_rrqs_xri_bitmap = NULL;
4421 int rpi = LPFC_RPI_ALLOC_ERROR;
4426 if (phba->sli_rev == LPFC_SLI_REV4) {
4427 rpi = lpfc_sli4_alloc_rpi(vport->phba);
4428 if (rpi == LPFC_RPI_ALLOC_ERROR)
4432 spin_lock_irqsave(&phba->ndlp_lock, flags);
4433 /* The ndlp should not be in memory free mode */
4434 if (NLP_CHK_FREE_REQ(ndlp)) {
4435 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4436 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4437 "0277 lpfc_enable_node: ndlp:x%p "
4438 "usgmap:x%x refcnt:%d\n",
4439 (void *)ndlp, ndlp->nlp_usg_map,
4440 kref_read(&ndlp->kref));
4443 /* The ndlp should not already be in active mode */
4444 if (NLP_CHK_NODE_ACT(ndlp)) {
4445 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4446 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4447 "0278 lpfc_enable_node: ndlp:x%p "
4448 "usgmap:x%x refcnt:%d\n",
4449 (void *)ndlp, ndlp->nlp_usg_map,
4450 kref_read(&ndlp->kref));
4454 /* Keep the original DID */
4455 did = ndlp->nlp_DID;
4456 if (phba->sli_rev == LPFC_SLI_REV4)
4457 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap;
4459 /* re-initialize ndlp except of ndlp linked list pointer */
4460 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
4461 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
4462 lpfc_initialize_node(vport, ndlp, did);
4464 if (phba->sli_rev == LPFC_SLI_REV4)
4465 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap;
4467 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4468 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
4469 ndlp->nlp_rpi = rpi;
4470 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4471 "0008 rpi:%x DID:%x flg:%x refcnt:%d "
4472 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
4474 kref_read(&ndlp->kref),
4475 ndlp->nlp_usg_map, ndlp);
4479 if (state != NLP_STE_UNUSED_NODE)
4480 lpfc_nlp_set_state(vport, ndlp, state);
4482 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4483 "node enable: did:x%x",
4484 ndlp->nlp_DID, 0, 0);
4488 if (phba->sli_rev == LPFC_SLI_REV4)
4489 lpfc_sli4_free_rpi(vport->phba, rpi);
4494 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4497 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
4498 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
4499 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4500 * until ALL other outstanding threads have completed. We check
4501 * that the ndlp not already in the UNUSED state before we proceed.
4503 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4505 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
4506 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
4507 lpfc_cleanup_vports_rrqs(vport, ndlp);
4508 lpfc_unreg_rpi(vport, ndlp);
4516 * Start / ReStart rescue timer for Discovery / RSCN handling
4519 lpfc_set_disctmo(struct lpfc_vport *vport)
4521 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4522 struct lpfc_hba *phba = vport->phba;
4525 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
4526 /* For FAN, timeout should be greater than edtov */
4527 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
4529 /* Normal discovery timeout should be > than ELS/CT timeout
4530 * FC spec states we need 3 * ratov for CT requests
4532 tmo = ((phba->fc_ratov * 3) + 3);
4536 if (!timer_pending(&vport->fc_disctmo)) {
4537 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4538 "set disc timer: tmo:x%x state:x%x flg:x%x",
4539 tmo, vport->port_state, vport->fc_flag);
4542 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));
4543 spin_lock_irq(shost->host_lock);
4544 vport->fc_flag |= FC_DISC_TMO;
4545 spin_unlock_irq(shost->host_lock);
4547 /* Start Discovery Timer state <hba_state> */
4548 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4549 "0247 Start Discovery Timer state x%x "
4550 "Data: x%x x%lx x%x x%x\n",
4551 vport->port_state, tmo,
4552 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
4553 vport->fc_adisc_cnt);
4559 * Cancel rescue timer for Discovery / RSCN handling
4562 lpfc_can_disctmo(struct lpfc_vport *vport)
4564 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4565 unsigned long iflags;
4567 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4568 "can disc timer: state:x%x rtry:x%x flg:x%x",
4569 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
4571 /* Turn off discovery timer if its running */
4572 if (vport->fc_flag & FC_DISC_TMO) {
4573 spin_lock_irqsave(shost->host_lock, iflags);
4574 vport->fc_flag &= ~FC_DISC_TMO;
4575 spin_unlock_irqrestore(shost->host_lock, iflags);
4576 del_timer_sync(&vport->fc_disctmo);
4577 spin_lock_irqsave(&vport->work_port_lock, iflags);
4578 vport->work_port_events &= ~WORKER_DISC_TMO;
4579 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
4582 /* Cancel Discovery Timer state <hba_state> */
4583 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4584 "0248 Cancel Discovery Timer state x%x "
4585 "Data: x%x x%x x%x\n",
4586 vport->port_state, vport->fc_flag,
4587 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
4592 * Check specified ring for outstanding IOCB on the SLI queue
4593 * Return true if iocb matches the specified nport
4596 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
4597 struct lpfc_sli_ring *pring,
4598 struct lpfc_iocbq *iocb,
4599 struct lpfc_nodelist *ndlp)
4601 IOCB_t *icmd = &iocb->iocb;
4602 struct lpfc_vport *vport = ndlp->vport;
4604 if (iocb->vport != vport)
4607 if (pring->ringno == LPFC_ELS_RING) {
4608 switch (icmd->ulpCommand) {
4609 case CMD_GEN_REQUEST64_CR:
4610 if (iocb->context_un.ndlp == ndlp)
4612 case CMD_ELS_REQUEST64_CR:
4613 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
4615 case CMD_XMIT_ELS_RSP64_CX:
4616 if (iocb->context1 == (uint8_t *) ndlp)
4619 } else if (pring->ringno == LPFC_FCP_RING) {
4620 /* Skip match check if waiting to relogin to FCP target */
4621 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4622 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
4625 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
4633 __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba,
4634 struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring,
4635 struct list_head *dequeue_list)
4637 struct lpfc_iocbq *iocb, *next_iocb;
4639 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
4640 /* Check to see if iocb matches the nport */
4641 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
4642 /* match, dequeue */
4643 list_move_tail(&iocb->list, dequeue_list);
4648 lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba,
4649 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
4651 struct lpfc_sli *psli = &phba->sli;
4654 spin_lock_irq(&phba->hbalock);
4655 for (i = 0; i < psli->num_rings; i++)
4656 __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i],
4658 spin_unlock_irq(&phba->hbalock);
4662 lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba,
4663 struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
4665 struct lpfc_sli_ring *pring;
4666 struct lpfc_queue *qp = NULL;
4668 spin_lock_irq(&phba->hbalock);
4669 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
4673 spin_lock(&pring->ring_lock);
4674 __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list);
4675 spin_unlock(&pring->ring_lock);
4677 spin_unlock_irq(&phba->hbalock);
4681 * Free resources / clean up outstanding I/Os
4682 * associated with nlp_rpi in the LPFC_NODELIST entry.
4685 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
4687 LIST_HEAD(completions);
4689 lpfc_fabric_abort_nport(ndlp);
4692 * Everything that matches on txcmplq will be returned
4693 * by firmware with a no rpi error.
4695 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4696 if (phba->sli_rev != LPFC_SLI_REV4)
4697 lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions);
4699 lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions);
4702 /* Cancel all the IOCBs from the completions list */
4703 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4710 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
4711 * @phba: Pointer to HBA context object.
4712 * @pmb: Pointer to mailbox object.
4714 * This function will issue an ELS LOGO command after completing
4718 lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4720 struct lpfc_vport *vport = pmb->vport;
4721 struct lpfc_nodelist *ndlp;
4723 ndlp = (struct lpfc_nodelist *)(pmb->context1);
4726 lpfc_issue_els_logo(vport, ndlp, 0);
4727 mempool_free(pmb, phba->mbox_mem_pool);
4731 * Free rpi associated with LPFC_NODELIST entry.
4732 * This routine is called from lpfc_freenode(), when we are removing
4733 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4734 * LOGO that completes successfully, and we are waiting to PLOGI back
4735 * to the remote NPort. In addition, it is called after we receive
4736 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4737 * we are waiting to PLOGI back to the remote NPort.
4740 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4742 struct lpfc_hba *phba = vport->phba;
4744 int rc, acc_plogi = 1;
4747 if (ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4748 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) {
4749 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
4750 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
4751 "3366 RPI x%x needs to be "
4752 "unregistered nlp_flag x%x "
4754 ndlp->nlp_rpi, ndlp->nlp_flag,
4756 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4758 /* SLI4 ports require the physical rpi value. */
4759 rpi = ndlp->nlp_rpi;
4760 if (phba->sli_rev == LPFC_SLI_REV4)
4761 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
4763 lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
4764 mbox->vport = vport;
4765 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
4766 mbox->context1 = ndlp;
4767 mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
4769 if (phba->sli_rev == LPFC_SLI_REV4 &&
4770 (!(vport->load_flag & FC_UNLOADING)) &&
4771 (bf_get(lpfc_sli_intf_if_type,
4772 &phba->sli4_hba.sli_intf) >=
4773 LPFC_SLI_INTF_IF_TYPE_2) &&
4774 (kref_read(&ndlp->kref) > 0)) {
4775 mbox->context1 = lpfc_nlp_get(ndlp);
4777 lpfc_sli4_unreg_rpi_cmpl_clr;
4779 * accept PLOGIs after unreg_rpi_cmpl
4784 lpfc_sli_def_mbox_cmpl;
4787 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4788 if (rc == MBX_NOT_FINISHED) {
4789 mempool_free(mbox, phba->mbox_mem_pool);
4793 lpfc_no_rpi(phba, ndlp);
4795 if (phba->sli_rev != LPFC_SLI_REV4)
4797 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
4798 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4800 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4803 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4808 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4809 * @phba: pointer to lpfc hba data structure.
4811 * This routine is invoked to unregister all the currently registered RPIs
4815 lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
4817 struct lpfc_vport **vports;
4818 struct lpfc_nodelist *ndlp;
4819 struct Scsi_Host *shost;
4822 vports = lpfc_create_vport_work_array(phba);
4824 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
4825 "2884 Vport array allocation failed \n");
4828 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4829 shost = lpfc_shost_from_vport(vports[i]);
4830 spin_lock_irq(shost->host_lock);
4831 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
4832 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
4833 /* The mempool_alloc might sleep */
4834 spin_unlock_irq(shost->host_lock);
4835 lpfc_unreg_rpi(vports[i], ndlp);
4836 spin_lock_irq(shost->host_lock);
4839 spin_unlock_irq(shost->host_lock);
4841 lpfc_destroy_vport_work_array(phba, vports);
4845 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
4847 struct lpfc_hba *phba = vport->phba;
4851 if (phba->sli_rev == LPFC_SLI_REV4) {
4852 lpfc_sli4_unreg_all_rpis(vport);
4856 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4858 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
4860 mbox->vport = vport;
4861 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4862 mbox->context1 = NULL;
4863 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
4864 if (rc != MBX_TIMEOUT)
4865 mempool_free(mbox, phba->mbox_mem_pool);
4867 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4868 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4869 "1836 Could not issue "
4870 "unreg_login(all_rpis) status %d\n", rc);
4875 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
4877 struct lpfc_hba *phba = vport->phba;
4881 /* Unreg DID is an SLI3 operation. */
4882 if (phba->sli_rev > LPFC_SLI_REV3)
4885 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4887 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
4889 mbox->vport = vport;
4890 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4891 mbox->context1 = NULL;
4892 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
4893 if (rc != MBX_TIMEOUT)
4894 mempool_free(mbox, phba->mbox_mem_pool);
4896 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4897 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4898 "1815 Could not issue "
4899 "unreg_did (default rpis) status %d\n",
4905 * Free resources associated with LPFC_NODELIST entry
4906 * so it can be freed.
4909 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4911 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4912 struct lpfc_hba *phba = vport->phba;
4913 LPFC_MBOXQ_t *mb, *nextmb;
4914 struct lpfc_dmabuf *mp;
4916 /* Cleanup node for NPort <nlp_DID> */
4917 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4918 "0900 Cleanup node for NPort x%x "
4919 "Data: x%x x%x x%x\n",
4920 ndlp->nlp_DID, ndlp->nlp_flag,
4921 ndlp->nlp_state, ndlp->nlp_rpi);
4922 if (NLP_CHK_FREE_REQ(ndlp)) {
4923 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4924 "0280 lpfc_cleanup_node: ndlp:x%p "
4925 "usgmap:x%x refcnt:%d\n",
4926 (void *)ndlp, ndlp->nlp_usg_map,
4927 kref_read(&ndlp->kref));
4928 lpfc_dequeue_node(vport, ndlp);
4930 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4931 "0281 lpfc_cleanup_node: ndlp:x%p "
4932 "usgmap:x%x refcnt:%d\n",
4933 (void *)ndlp, ndlp->nlp_usg_map,
4934 kref_read(&ndlp->kref));
4935 lpfc_disable_node(vport, ndlp);
4939 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
4941 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
4942 if ((mb = phba->sli.mbox_active)) {
4943 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
4944 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
4945 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
4946 mb->context2 = NULL;
4947 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4951 spin_lock_irq(&phba->hbalock);
4952 /* Cleanup REG_LOGIN completions which are not yet processed */
4953 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
4954 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
4955 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
4956 (ndlp != (struct lpfc_nodelist *) mb->context2))
4959 mb->context2 = NULL;
4960 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4963 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
4964 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
4965 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
4966 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
4967 mp = (struct lpfc_dmabuf *) (mb->context1);
4969 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
4972 list_del(&mb->list);
4973 mempool_free(mb, phba->mbox_mem_pool);
4974 /* We shall not invoke the lpfc_nlp_put to decrement
4975 * the ndlp reference count as we are in the process
4976 * of lpfc_nlp_release.
4980 spin_unlock_irq(&phba->hbalock);
4982 lpfc_els_abort(phba, ndlp);
4984 spin_lock_irq(shost->host_lock);
4985 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
4986 spin_unlock_irq(shost->host_lock);
4988 ndlp->nlp_last_elscmd = 0;
4989 del_timer_sync(&ndlp->nlp_delayfunc);
4991 list_del_init(&ndlp->els_retry_evt.evt_listp);
4992 list_del_init(&ndlp->dev_loss_evt.evt_listp);
4993 lpfc_cleanup_vports_rrqs(vport, ndlp);
4994 lpfc_unreg_rpi(vport, ndlp);
5000 * Check to see if we can free the nlp back to the freelist.
5001 * If we are in the middle of using the nlp in the discovery state
5002 * machine, defer the free till we reach the end of the state machine.
5005 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
5007 struct lpfc_hba *phba = vport->phba;
5008 struct lpfc_rport_data *rdata;
5009 struct fc_rport *rport;
5013 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5014 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
5015 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
5016 !(ndlp->nlp_flag & NLP_RPI_REGISTERED) &&
5017 phba->sli_rev != LPFC_SLI_REV4) {
5018 /* For this case we need to cleanup the default rpi
5019 * allocated by the firmware.
5021 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5022 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n",
5023 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
5024 kref_read(&ndlp->kref),
5025 ndlp->nlp_usg_map, ndlp);
5026 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
5028 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
5029 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi);
5031 mempool_free(mbox, phba->mbox_mem_pool);
5034 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
5035 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
5036 mbox->vport = vport;
5037 mbox->context2 = ndlp;
5038 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5039 if (rc == MBX_NOT_FINISHED) {
5040 mempool_free(mbox, phba->mbox_mem_pool);
5045 lpfc_cleanup_node(vport, ndlp);
5048 * ndlp->rport must be set to NULL before it reaches here
5049 * i.e. break rport/node link before doing lpfc_nlp_put for
5050 * registered rport and then drop the reference of rport.
5054 * extra lpfc_nlp_put dropped the reference of ndlp
5055 * for registered rport so need to cleanup rport
5057 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
5058 "0940 removed node x%p DID x%x "
5059 " rport not null %p\n",
5060 ndlp, ndlp->nlp_DID, ndlp->rport);
5061 rport = ndlp->rport;
5062 rdata = rport->dd_data;
5063 rdata->pnode = NULL;
5065 put_device(&rport->dev);
5070 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
5073 D_ID mydid, ndlpdid, matchdid;
5075 if (did == Bcast_DID)
5078 /* First check for Direct match */
5079 if (ndlp->nlp_DID == did)
5082 /* Next check for area/domain identically equals 0 match */
5083 mydid.un.word = vport->fc_myDID;
5084 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
5088 matchdid.un.word = did;
5089 ndlpdid.un.word = ndlp->nlp_DID;
5090 if (matchdid.un.b.id == ndlpdid.un.b.id) {
5091 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
5092 (mydid.un.b.area == matchdid.un.b.area)) {
5093 /* This code is supposed to match the ID
5094 * for a private loop device that is
5095 * connect to fl_port. But we need to
5096 * check that the port did not just go
5097 * from pt2pt to fabric or we could end
5098 * up matching ndlp->nlp_DID 000001 to
5099 * fabric DID 0x20101
5101 if ((ndlpdid.un.b.domain == 0) &&
5102 (ndlpdid.un.b.area == 0)) {
5103 if (ndlpdid.un.b.id &&
5104 vport->phba->fc_topology ==
5111 matchdid.un.word = ndlp->nlp_DID;
5112 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
5113 (mydid.un.b.area == ndlpdid.un.b.area)) {
5114 if ((matchdid.un.b.domain == 0) &&
5115 (matchdid.un.b.area == 0)) {
5116 if (matchdid.un.b.id)
5124 /* Search for a nodelist entry */
5125 static struct lpfc_nodelist *
5126 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
5128 struct lpfc_nodelist *ndlp;
5131 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5132 if (lpfc_matchdid(vport, ndlp, did)) {
5133 data1 = (((uint32_t) ndlp->nlp_state << 24) |
5134 ((uint32_t) ndlp->nlp_xri << 16) |
5135 ((uint32_t) ndlp->nlp_type << 8) |
5136 ((uint32_t) ndlp->nlp_rpi & 0xff));
5137 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5138 "0929 FIND node DID "
5139 "Data: x%p x%x x%x x%x %p\n",
5140 ndlp, ndlp->nlp_DID,
5141 ndlp->nlp_flag, data1,
5142 ndlp->active_rrqs_xri_bitmap);
5147 /* FIND node did <did> NOT FOUND */
5148 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5149 "0932 FIND node did x%x NOT FOUND.\n", did);
5153 struct lpfc_nodelist *
5154 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
5156 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5157 struct lpfc_nodelist *ndlp;
5158 unsigned long iflags;
5160 spin_lock_irqsave(shost->host_lock, iflags);
5161 ndlp = __lpfc_findnode_did(vport, did);
5162 spin_unlock_irqrestore(shost->host_lock, iflags);
5166 struct lpfc_nodelist *
5167 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
5169 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5170 struct lpfc_nodelist *ndlp;
5172 ndlp = lpfc_findnode_did(vport, did);
5174 if (vport->phba->nvmet_support)
5176 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
5177 lpfc_rscn_payload_check(vport, did) == 0)
5179 ndlp = lpfc_nlp_init(vport, did);
5182 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5183 spin_lock_irq(shost->host_lock);
5184 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5185 spin_unlock_irq(shost->host_lock);
5187 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5188 if (vport->phba->nvmet_support)
5190 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
5193 spin_lock_irq(shost->host_lock);
5194 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5195 spin_unlock_irq(shost->host_lock);
5199 /* The NVME Target does not want to actively manage an rport.
5200 * The goal is to allow the target to reset its state and clear
5201 * pending IO in preparation for the initiator to recover.
5203 if ((vport->fc_flag & FC_RSCN_MODE) &&
5204 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
5205 if (lpfc_rscn_payload_check(vport, did)) {
5207 /* Since this node is marked for discovery,
5208 * delay timeout is not needed.
5210 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5212 /* NVME Target mode waits until rport is known to be
5213 * impacted by the RSCN before it transitions. No
5214 * active management - just go to NPR provided the
5215 * node had a valid login.
5217 if (vport->phba->nvmet_support)
5220 /* If we've already received a PLOGI from this NPort
5221 * we don't need to try to discover it again.
5223 if (ndlp->nlp_flag & NLP_RCV_PLOGI &&
5225 (NLP_FCP_TARGET | NLP_NVME_TARGET)))
5228 ndlp->nlp_prev_state = ndlp->nlp_state;
5229 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5231 spin_lock_irq(shost->host_lock);
5232 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5233 spin_unlock_irq(shost->host_lock);
5237 /* If the initiator received a PLOGI from this NPort or if the
5238 * initiator is already in the process of discovery on it,
5239 * there's no need to try to discover it again.
5241 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
5242 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5243 (!vport->phba->nvmet_support &&
5244 ndlp->nlp_flag & NLP_RCV_PLOGI))
5247 if (vport->phba->nvmet_support)
5250 /* Moving to NPR state clears unsolicited flags and
5251 * allows for rediscovery
5253 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
5255 spin_lock_irq(shost->host_lock);
5256 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
5257 spin_unlock_irq(shost->host_lock);
5262 /* Build a list of nodes to discover based on the loopmap */
5264 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
5266 struct lpfc_hba *phba = vport->phba;
5268 uint32_t alpa, index;
5270 if (!lpfc_is_link_up(phba))
5273 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
5276 /* Check for loop map present or not */
5277 if (phba->alpa_map[0]) {
5278 for (j = 1; j <= phba->alpa_map[0]; j++) {
5279 alpa = phba->alpa_map[j];
5280 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
5282 lpfc_setup_disc_node(vport, alpa);
5285 /* No alpamap, so try all alpa's */
5286 for (j = 0; j < FC_MAXLOOP; j++) {
5287 /* If cfg_scan_down is set, start from highest
5288 * ALPA (0xef) to lowest (0x1).
5290 if (vport->cfg_scan_down)
5293 index = FC_MAXLOOP - j - 1;
5294 alpa = lpfcAlpaArray[index];
5295 if ((vport->fc_myDID & 0xff) == alpa)
5297 lpfc_setup_disc_node(vport, alpa);
5305 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
5308 struct lpfc_sli *psli = &phba->sli;
5309 struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING];
5310 struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING];
5314 * if it's not a physical port or if we already send
5315 * clear_la then don't send it.
5317 if ((phba->link_state >= LPFC_CLEAR_LA) ||
5318 (vport->port_type != LPFC_PHYSICAL_PORT) ||
5319 (phba->sli_rev == LPFC_SLI_REV4))
5322 /* Link up discovery */
5323 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
5324 phba->link_state = LPFC_CLEAR_LA;
5325 lpfc_clear_la(phba, mbox);
5326 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
5327 mbox->vport = vport;
5328 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5329 if (rc == MBX_NOT_FINISHED) {
5330 mempool_free(mbox, phba->mbox_mem_pool);
5331 lpfc_disc_flush_list(vport);
5332 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5333 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5334 phba->link_state = LPFC_HBA_ERROR;
5339 /* Reg_vpi to tell firmware to resume normal operations */
5341 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
5343 LPFC_MBOXQ_t *regvpimbox;
5345 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5347 lpfc_reg_vpi(vport, regvpimbox);
5348 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
5349 regvpimbox->vport = vport;
5350 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
5351 == MBX_NOT_FINISHED) {
5352 mempool_free(regvpimbox, phba->mbox_mem_pool);
5357 /* Start Link up / RSCN discovery on NPR nodes */
5359 lpfc_disc_start(struct lpfc_vport *vport)
5361 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5362 struct lpfc_hba *phba = vport->phba;
5364 uint32_t clear_la_pending;
5366 if (!lpfc_is_link_up(phba)) {
5367 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5368 "3315 Link is not up %x\n",
5373 if (phba->link_state == LPFC_CLEAR_LA)
5374 clear_la_pending = 1;
5376 clear_la_pending = 0;
5378 if (vport->port_state < LPFC_VPORT_READY)
5379 vport->port_state = LPFC_DISC_AUTH;
5381 lpfc_set_disctmo(vport);
5383 vport->fc_prevDID = vport->fc_myDID;
5384 vport->num_disc_nodes = 0;
5386 /* Start Discovery state <hba_state> */
5387 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5388 "0202 Start Discovery hba state x%x "
5389 "Data: x%x x%x x%x\n",
5390 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
5391 vport->fc_adisc_cnt);
5393 /* First do ADISCs - if any */
5394 num_sent = lpfc_els_disc_adisc(vport);
5399 /* Register the VPI for SLI3, NPIV only. */
5400 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5401 !(vport->fc_flag & FC_PT2PT) &&
5402 !(vport->fc_flag & FC_RSCN_MODE) &&
5403 (phba->sli_rev < LPFC_SLI_REV4)) {
5404 lpfc_issue_clear_la(phba, vport);
5405 lpfc_issue_reg_vpi(phba, vport);
5410 * For SLI2, we need to set port_state to READY and continue
5413 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
5414 /* If we get here, there is nothing to ADISC */
5415 lpfc_issue_clear_la(phba, vport);
5417 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
5418 vport->num_disc_nodes = 0;
5419 /* go thru NPR nodes and issue ELS PLOGIs */
5420 if (vport->fc_npr_cnt)
5421 lpfc_els_disc_plogi(vport);
5423 if (!vport->num_disc_nodes) {
5424 spin_lock_irq(shost->host_lock);
5425 vport->fc_flag &= ~FC_NDISC_ACTIVE;
5426 spin_unlock_irq(shost->host_lock);
5427 lpfc_can_disctmo(vport);
5430 vport->port_state = LPFC_VPORT_READY;
5432 /* Next do PLOGIs - if any */
5433 num_sent = lpfc_els_disc_plogi(vport);
5438 if (vport->fc_flag & FC_RSCN_MODE) {
5439 /* Check to see if more RSCNs came in while we
5440 * were processing this one.
5442 if ((vport->fc_rscn_id_cnt == 0) &&
5443 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
5444 spin_lock_irq(shost->host_lock);
5445 vport->fc_flag &= ~FC_RSCN_MODE;
5446 spin_unlock_irq(shost->host_lock);
5447 lpfc_can_disctmo(vport);
5449 lpfc_els_handle_rscn(vport);
5456 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
5457 * ring the match the sppecified nodelist.
5460 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
5462 LIST_HEAD(completions);
5463 struct lpfc_sli *psli;
5465 struct lpfc_iocbq *iocb, *next_iocb;
5466 struct lpfc_sli_ring *pring;
5469 pring = lpfc_phba_elsring(phba);
5470 if (unlikely(!pring))
5473 /* Error matching iocb on txq or txcmplq
5474 * First check the txq.
5476 spin_lock_irq(&phba->hbalock);
5477 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
5478 if (iocb->context1 != ndlp) {
5482 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
5483 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
5485 list_move_tail(&iocb->list, &completions);
5489 /* Next check the txcmplq */
5490 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
5491 if (iocb->context1 != ndlp) {
5495 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
5496 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
5497 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
5500 spin_unlock_irq(&phba->hbalock);
5502 /* Cancel all the IOCBs from the completions list */
5503 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
5508 lpfc_disc_flush_list(struct lpfc_vport *vport)
5510 struct lpfc_nodelist *ndlp, *next_ndlp;
5511 struct lpfc_hba *phba = vport->phba;
5513 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
5514 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5516 if (!NLP_CHK_NODE_ACT(ndlp))
5518 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5519 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
5520 lpfc_free_tx(phba, ndlp);
5527 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
5529 lpfc_els_flush_rscn(vport);
5530 lpfc_els_flush_cmd(vport);
5531 lpfc_disc_flush_list(vport);
5534 /*****************************************************************************/
5536 * NAME: lpfc_disc_timeout
5538 * FUNCTION: Fibre Channel driver discovery timeout routine.
5540 * EXECUTION ENVIRONMENT: interrupt only
5548 /*****************************************************************************/
5550 lpfc_disc_timeout(unsigned long ptr)
5552 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
5553 struct lpfc_hba *phba = vport->phba;
5554 uint32_t tmo_posted;
5555 unsigned long flags = 0;
5557 if (unlikely(!phba))
5560 spin_lock_irqsave(&vport->work_port_lock, flags);
5561 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
5563 vport->work_port_events |= WORKER_DISC_TMO;
5564 spin_unlock_irqrestore(&vport->work_port_lock, flags);
5567 lpfc_worker_wake_up(phba);
5572 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
5574 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5575 struct lpfc_hba *phba = vport->phba;
5576 struct lpfc_sli *psli = &phba->sli;
5577 struct lpfc_nodelist *ndlp, *next_ndlp;
5578 LPFC_MBOXQ_t *initlinkmbox;
5579 int rc, clrlaerr = 0;
5581 if (!(vport->fc_flag & FC_DISC_TMO))
5584 spin_lock_irq(shost->host_lock);
5585 vport->fc_flag &= ~FC_DISC_TMO;
5586 spin_unlock_irq(shost->host_lock);
5588 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
5589 "disc timeout: state:x%x rtry:x%x flg:x%x",
5590 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
5592 switch (vport->port_state) {
5594 case LPFC_LOCAL_CFG_LINK:
5596 * port_state is identically LPFC_LOCAL_CFG_LINK while
5597 * waiting for FAN timeout
5599 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
5600 "0221 FAN timeout\n");
5602 /* Start discovery by sending FLOGI, clean up old rpis */
5603 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
5605 if (!NLP_CHK_NODE_ACT(ndlp))
5607 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
5609 if (ndlp->nlp_type & NLP_FABRIC) {
5610 /* Clean up the ndlp on Fabric connections */
5611 lpfc_drop_node(vport, ndlp);
5613 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
5614 /* Fail outstanding IO now since device
5615 * is marked for PLOGI.
5617 lpfc_unreg_rpi(vport, ndlp);
5620 if (vport->port_state != LPFC_FLOGI) {
5621 if (phba->sli_rev <= LPFC_SLI_REV3)
5622 lpfc_initial_flogi(vport);
5624 lpfc_issue_init_vfi(vport);
5631 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
5632 /* Initial FLOGI timeout */
5633 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5634 "0222 Initial %s timeout\n",
5635 vport->vpi ? "FDISC" : "FLOGI");
5637 /* Assume no Fabric and go on with discovery.
5638 * Check for outstanding ELS FLOGI to abort.
5641 /* FLOGI failed, so just use loop map to make discovery list */
5642 lpfc_disc_list_loopmap(vport);
5644 /* Start discovery */
5645 lpfc_disc_start(vport);
5648 case LPFC_FABRIC_CFG_LINK:
5649 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5651 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5652 "0223 Timeout while waiting for "
5653 "NameServer login\n");
5654 /* Next look for NameServer ndlp */
5655 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5656 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
5657 lpfc_els_abort(phba, ndlp);
5659 /* ReStart discovery */
5663 /* Check for wait for NameServer Rsp timeout */
5664 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5665 "0224 NameServer Query timeout "
5667 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5669 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
5670 /* Try it one more time */
5671 vport->fc_ns_retry++;
5672 vport->gidft_inp = 0;
5673 rc = lpfc_issue_gidft(vport);
5677 vport->fc_ns_retry = 0;
5681 * Discovery is over.
5682 * set port_state to PORT_READY if SLI2.
5683 * cmpl_reg_vpi will set port_state to READY for SLI3.
5685 if (phba->sli_rev < LPFC_SLI_REV4) {
5686 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5687 lpfc_issue_reg_vpi(phba, vport);
5689 lpfc_issue_clear_la(phba, vport);
5690 vport->port_state = LPFC_VPORT_READY;
5694 /* Setup and issue mailbox INITIALIZE LINK command */
5695 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5696 if (!initlinkmbox) {
5697 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5698 "0206 Device Discovery "
5699 "completion error\n");
5700 phba->link_state = LPFC_HBA_ERROR;
5704 lpfc_linkdown(phba);
5705 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
5706 phba->cfg_link_speed);
5707 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
5708 initlinkmbox->vport = vport;
5709 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5710 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
5711 lpfc_set_loopback_flag(phba);
5712 if (rc == MBX_NOT_FINISHED)
5713 mempool_free(initlinkmbox, phba->mbox_mem_pool);
5717 case LPFC_DISC_AUTH:
5718 /* Node Authentication timeout */
5719 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5720 "0227 Node Authentication timeout\n");
5721 lpfc_disc_flush_list(vport);
5724 * set port_state to PORT_READY if SLI2.
5725 * cmpl_reg_vpi will set port_state to READY for SLI3.
5727 if (phba->sli_rev < LPFC_SLI_REV4) {
5728 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5729 lpfc_issue_reg_vpi(phba, vport);
5730 else { /* NPIV Not enabled */
5731 lpfc_issue_clear_la(phba, vport);
5732 vport->port_state = LPFC_VPORT_READY;
5737 case LPFC_VPORT_READY:
5738 if (vport->fc_flag & FC_RSCN_MODE) {
5739 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5740 "0231 RSCN timeout Data: x%x "
5742 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
5744 /* Cleanup any outstanding ELS commands */
5745 lpfc_els_flush_cmd(vport);
5747 lpfc_els_flush_rscn(vport);
5748 lpfc_disc_flush_list(vport);
5753 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5754 "0273 Unexpected discovery timeout, "
5755 "vport State x%x\n", vport->port_state);
5759 switch (phba->link_state) {
5761 /* CLEAR LA timeout */
5762 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5763 "0228 CLEAR LA timeout\n");
5768 lpfc_issue_clear_la(phba, vport);
5770 case LPFC_LINK_UNKNOWN:
5771 case LPFC_WARM_START:
5772 case LPFC_INIT_START:
5773 case LPFC_INIT_MBX_CMDS:
5774 case LPFC_LINK_DOWN:
5775 case LPFC_HBA_ERROR:
5776 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5777 "0230 Unexpected timeout, hba link "
5778 "state x%x\n", phba->link_state);
5782 case LPFC_HBA_READY:
5787 lpfc_disc_flush_list(vport);
5788 if (phba->sli_rev != LPFC_SLI_REV4) {
5789 psli->sli3_ring[(LPFC_EXTRA_RING)].flag &=
5790 ~LPFC_STOP_IOCB_EVENT;
5791 psli->sli3_ring[LPFC_FCP_RING].flag &=
5792 ~LPFC_STOP_IOCB_EVENT;
5794 vport->port_state = LPFC_VPORT_READY;
5800 * This routine handles processing a NameServer REG_LOGIN mailbox
5801 * command upon completion. It is setup in the LPFC_MBOXQ
5802 * as the completion routine when the command is
5803 * handed off to the SLI layer.
5806 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5808 MAILBOX_t *mb = &pmb->u.mb;
5809 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
5810 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
5811 struct lpfc_vport *vport = pmb->vport;
5813 pmb->context1 = NULL;
5814 pmb->context2 = NULL;
5816 if (phba->sli_rev < LPFC_SLI_REV4)
5817 ndlp->nlp_rpi = mb->un.varWords[0];
5818 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
5819 ndlp->nlp_type |= NLP_FABRIC;
5820 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
5821 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5822 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n",
5823 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
5824 kref_read(&ndlp->kref),
5825 ndlp->nlp_usg_map, ndlp);
5827 * Start issuing Fabric-Device Management Interface (FDMI) command to
5828 * 0xfffffa (FDMI well known port).
5829 * DHBA -> DPRT -> RHBA -> RPA (physical port)
5830 * DPRT -> RPRT (vports)
5832 if (vport->port_type == LPFC_PHYSICAL_PORT)
5833 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
5835 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
5838 /* decrement the node reference count held for this callback
5842 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5844 mempool_free(pmb, phba->mbox_mem_pool);
5850 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
5852 uint16_t *rpi = param;
5854 /* check for active node */
5855 if (!NLP_CHK_NODE_ACT(ndlp))
5858 return ndlp->nlp_rpi == *rpi;
5862 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
5864 return memcmp(&ndlp->nlp_portname, param,
5865 sizeof(ndlp->nlp_portname)) == 0;
5868 static struct lpfc_nodelist *
5869 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
5871 struct lpfc_nodelist *ndlp;
5873 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5874 if (filter(ndlp, param)) {
5875 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5876 "3185 FIND node filter %p DID "
5877 "Data: x%p x%x x%x\n",
5878 filter, ndlp, ndlp->nlp_DID,
5883 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5884 "3186 FIND node filter %p NOT FOUND.\n", filter);
5889 * This routine looks up the ndlp lists for the given RPI. If rpi found it
5890 * returns the node list element pointer else return NULL.
5892 struct lpfc_nodelist *
5893 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
5895 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
5899 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
5900 * returns the node element list pointer else return NULL.
5902 struct lpfc_nodelist *
5903 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
5905 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5906 struct lpfc_nodelist *ndlp;
5908 spin_lock_irq(shost->host_lock);
5909 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
5910 spin_unlock_irq(shost->host_lock);
5915 * This routine looks up the ndlp lists for the given RPI. If the rpi
5916 * is found, the routine returns the node element list pointer else
5919 struct lpfc_nodelist *
5920 lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
5922 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5923 struct lpfc_nodelist *ndlp;
5925 spin_lock_irq(shost->host_lock);
5926 ndlp = __lpfc_findnode_rpi(vport, rpi);
5927 spin_unlock_irq(shost->host_lock);
5932 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
5933 * @phba: pointer to lpfc hba data structure.
5934 * @vpi: the physical host virtual N_Port identifier.
5936 * This routine finds a vport on a HBA (referred by @phba) through a
5937 * @vpi. The function walks the HBA's vport list and returns the address
5938 * of the vport with the matching @vpi.
5941 * NULL - No vport with the matching @vpi found
5942 * Otherwise - Address to the vport with the matching @vpi.
5945 lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
5947 struct lpfc_vport *vport;
5948 unsigned long flags;
5951 /* The physical ports are always vpi 0 - translate is unnecessary. */
5954 * Translate the physical vpi to the logical vpi. The
5955 * vport stores the logical vpi.
5957 for (i = 0; i < phba->max_vpi; i++) {
5958 if (vpi == phba->vpi_ids[i])
5962 if (i >= phba->max_vpi) {
5963 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
5964 "2936 Could not find Vport mapped "
5965 "to vpi %d\n", vpi);
5970 spin_lock_irqsave(&phba->hbalock, flags);
5971 list_for_each_entry(vport, &phba->port_list, listentry) {
5972 if (vport->vpi == i) {
5973 spin_unlock_irqrestore(&phba->hbalock, flags);
5977 spin_unlock_irqrestore(&phba->hbalock, flags);
5981 struct lpfc_nodelist *
5982 lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did)
5984 struct lpfc_nodelist *ndlp;
5985 int rpi = LPFC_RPI_ALLOC_ERROR;
5987 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
5988 rpi = lpfc_sli4_alloc_rpi(vport->phba);
5989 if (rpi == LPFC_RPI_ALLOC_ERROR)
5993 ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
5995 if (vport->phba->sli_rev == LPFC_SLI_REV4)
5996 lpfc_sli4_free_rpi(vport->phba, rpi);
6000 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
6002 lpfc_initialize_node(vport, ndlp, did);
6003 INIT_LIST_HEAD(&ndlp->nlp_listp);
6004 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
6005 ndlp->nlp_rpi = rpi;
6006 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
6007 "0007 rpi:%x DID:%x flg:%x refcnt:%d "
6008 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
6010 kref_read(&ndlp->kref),
6011 ndlp->nlp_usg_map, ndlp);
6013 ndlp->active_rrqs_xri_bitmap =
6014 mempool_alloc(vport->phba->active_rrq_pool,
6016 if (ndlp->active_rrqs_xri_bitmap)
6017 memset(ndlp->active_rrqs_xri_bitmap, 0,
6018 ndlp->phba->cfg_rrq_xri_bitmap_sz);
6023 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
6024 "node init: did:x%x",
6025 ndlp->nlp_DID, 0, 0);
6030 /* This routine releases all resources associated with a specifc NPort's ndlp
6031 * and mempool_free's the nodelist.
6034 lpfc_nlp_release(struct kref *kref)
6036 struct lpfc_hba *phba;
6037 unsigned long flags;
6038 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
6041 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6042 "node release: did:x%x flg:x%x type:x%x",
6043 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
6045 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
6046 "0279 lpfc_nlp_release: ndlp:x%p did %x "
6047 "usgmap:x%x refcnt:%d rpi:%x\n",
6048 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map,
6049 kref_read(&ndlp->kref), ndlp->nlp_rpi);
6051 /* remove ndlp from action. */
6052 lpfc_nlp_remove(ndlp->vport, ndlp);
6054 /* clear the ndlp active flag for all release cases */
6056 spin_lock_irqsave(&phba->ndlp_lock, flags);
6057 NLP_CLR_NODE_ACT(ndlp);
6058 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6059 if (phba->sli_rev == LPFC_SLI_REV4)
6060 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
6062 /* free ndlp memory for final ndlp release */
6063 if (NLP_CHK_FREE_REQ(ndlp)) {
6064 kfree(ndlp->lat_data);
6065 if (phba->sli_rev == LPFC_SLI_REV4)
6066 mempool_free(ndlp->active_rrqs_xri_bitmap,
6067 ndlp->phba->active_rrq_pool);
6068 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
6072 /* This routine bumps the reference count for a ndlp structure to ensure
6073 * that one discovery thread won't free a ndlp while another discovery thread
6076 struct lpfc_nodelist *
6077 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
6079 struct lpfc_hba *phba;
6080 unsigned long flags;
6083 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6084 "node get: did:x%x flg:x%x refcnt:x%x",
6085 ndlp->nlp_DID, ndlp->nlp_flag,
6086 kref_read(&ndlp->kref));
6087 /* The check of ndlp usage to prevent incrementing the
6088 * ndlp reference count that is in the process of being
6092 spin_lock_irqsave(&phba->ndlp_lock, flags);
6093 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
6094 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6095 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6096 "0276 lpfc_nlp_get: ndlp:x%p "
6097 "usgmap:x%x refcnt:%d\n",
6098 (void *)ndlp, ndlp->nlp_usg_map,
6099 kref_read(&ndlp->kref));
6102 kref_get(&ndlp->kref);
6103 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6108 /* This routine decrements the reference count for a ndlp structure. If the
6109 * count goes to 0, this indicates the the associated nodelist should be
6110 * freed. Returning 1 indicates the ndlp resource has been released; on the
6111 * other hand, returning 0 indicates the ndlp resource has not been released
6115 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
6117 struct lpfc_hba *phba;
6118 unsigned long flags;
6123 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6124 "node put: did:x%x flg:x%x refcnt:x%x",
6125 ndlp->nlp_DID, ndlp->nlp_flag,
6126 kref_read(&ndlp->kref));
6128 spin_lock_irqsave(&phba->ndlp_lock, flags);
6129 /* Check the ndlp memory free acknowledge flag to avoid the
6130 * possible race condition that kref_put got invoked again
6131 * after previous one has done ndlp memory free.
6133 if (NLP_CHK_FREE_ACK(ndlp)) {
6134 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6135 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6136 "0274 lpfc_nlp_put: ndlp:x%p "
6137 "usgmap:x%x refcnt:%d\n",
6138 (void *)ndlp, ndlp->nlp_usg_map,
6139 kref_read(&ndlp->kref));
6142 /* Check the ndlp inactivate log flag to avoid the possible
6143 * race condition that kref_put got invoked again after ndlp
6144 * is already in inactivating state.
6146 if (NLP_CHK_IACT_REQ(ndlp)) {
6147 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6148 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
6149 "0275 lpfc_nlp_put: ndlp:x%p "
6150 "usgmap:x%x refcnt:%d\n",
6151 (void *)ndlp, ndlp->nlp_usg_map,
6152 kref_read(&ndlp->kref));
6155 /* For last put, mark the ndlp usage flags to make sure no
6156 * other kref_get and kref_put on the same ndlp shall get
6157 * in between the process when the final kref_put has been
6158 * invoked on this ndlp.
6160 if (kref_read(&ndlp->kref) == 1) {
6161 /* Indicate ndlp is put to inactive state. */
6162 NLP_SET_IACT_REQ(ndlp);
6163 /* Acknowledge ndlp memory free has been seen. */
6164 if (NLP_CHK_FREE_REQ(ndlp))
6165 NLP_SET_FREE_ACK(ndlp);
6167 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
6168 /* Note, the kref_put returns 1 when decrementing a reference
6169 * count that was 1, it invokes the release callback function,
6170 * but it still left the reference count as 1 (not actually
6171 * performs the last decrementation). Otherwise, it actually
6172 * decrements the reference count and returns 0.
6174 return kref_put(&ndlp->kref, lpfc_nlp_release);
6177 /* This routine free's the specified nodelist if it is not in use
6178 * by any other discovery thread. This routine returns 1 if the
6179 * ndlp has been freed. A return value of 0 indicates the ndlp is
6180 * not yet been released.
6183 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
6185 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
6186 "node not used: did:x%x flg:x%x refcnt:x%x",
6187 ndlp->nlp_DID, ndlp->nlp_flag,
6188 kref_read(&ndlp->kref));
6189 if (kref_read(&ndlp->kref) == 1)
6190 if (lpfc_nlp_put(ndlp))
6196 * lpfc_fcf_inuse - Check if FCF can be unregistered.
6197 * @phba: Pointer to hba context object.
6199 * This function iterate through all FC nodes associated
6200 * will all vports to check if there is any node with
6201 * fc_rports associated with it. If there is an fc_rport
6202 * associated with the node, then the node is either in
6203 * discovered state or its devloss_timer is pending.
6206 lpfc_fcf_inuse(struct lpfc_hba *phba)
6208 struct lpfc_vport **vports;
6210 struct lpfc_nodelist *ndlp;
6211 struct Scsi_Host *shost;
6213 vports = lpfc_create_vport_work_array(phba);
6215 /* If driver cannot allocate memory, indicate fcf is in use */
6219 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6220 shost = lpfc_shost_from_vport(vports[i]);
6221 spin_lock_irq(shost->host_lock);
6223 * IF the CVL_RCVD bit is not set then we have sent the
6225 * If dev_loss fires while we are waiting we do not want to
6228 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
6229 spin_unlock_irq(shost->host_lock);
6233 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
6234 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
6235 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
6237 spin_unlock_irq(shost->host_lock);
6239 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
6241 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
6242 "2624 RPI %x DID %x flag %x "
6243 "still logged in\n",
6244 ndlp->nlp_rpi, ndlp->nlp_DID,
6248 spin_unlock_irq(shost->host_lock);
6251 lpfc_destroy_vport_work_array(phba, vports);
6256 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
6257 * @phba: Pointer to hba context object.
6258 * @mboxq: Pointer to mailbox object.
6260 * This function frees memory associated with the mailbox command.
6263 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6265 struct lpfc_vport *vport = mboxq->vport;
6266 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6268 if (mboxq->u.mb.mbxStatus) {
6269 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6270 "2555 UNREG_VFI mbxStatus error x%x "
6272 mboxq->u.mb.mbxStatus, vport->port_state);
6274 spin_lock_irq(shost->host_lock);
6275 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
6276 spin_unlock_irq(shost->host_lock);
6277 mempool_free(mboxq, phba->mbox_mem_pool);
6282 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
6283 * @phba: Pointer to hba context object.
6284 * @mboxq: Pointer to mailbox object.
6286 * This function frees memory associated with the mailbox command.
6289 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6291 struct lpfc_vport *vport = mboxq->vport;
6293 if (mboxq->u.mb.mbxStatus) {
6294 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6295 "2550 UNREG_FCFI mbxStatus error x%x "
6297 mboxq->u.mb.mbxStatus, vport->port_state);
6299 mempool_free(mboxq, phba->mbox_mem_pool);
6304 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
6305 * @phba: Pointer to hba context object.
6307 * This function prepare the HBA for unregistering the currently registered
6308 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
6312 lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
6314 struct lpfc_vport **vports;
6315 struct lpfc_nodelist *ndlp;
6316 struct Scsi_Host *shost;
6319 /* Unregister RPIs */
6320 if (lpfc_fcf_inuse(phba))
6321 lpfc_unreg_hba_rpis(phba);
6323 /* At this point, all discovery is aborted */
6324 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
6326 /* Unregister VPIs */
6327 vports = lpfc_create_vport_work_array(phba);
6328 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
6329 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
6330 /* Stop FLOGI/FDISC retries */
6331 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
6333 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
6334 lpfc_cleanup_pending_mbox(vports[i]);
6335 if (phba->sli_rev == LPFC_SLI_REV4)
6336 lpfc_sli4_unreg_all_rpis(vports[i]);
6337 lpfc_mbx_unreg_vpi(vports[i]);
6338 shost = lpfc_shost_from_vport(vports[i]);
6339 spin_lock_irq(shost->host_lock);
6340 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6341 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
6342 spin_unlock_irq(shost->host_lock);
6344 lpfc_destroy_vport_work_array(phba, vports);
6345 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) {
6346 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
6348 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
6349 lpfc_cleanup_pending_mbox(phba->pport);
6350 if (phba->sli_rev == LPFC_SLI_REV4)
6351 lpfc_sli4_unreg_all_rpis(phba->pport);
6352 lpfc_mbx_unreg_vpi(phba->pport);
6353 shost = lpfc_shost_from_vport(phba->pport);
6354 spin_lock_irq(shost->host_lock);
6355 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6356 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED;
6357 spin_unlock_irq(shost->host_lock);
6360 /* Cleanup any outstanding ELS commands */
6361 lpfc_els_flush_all_cmd(phba);
6363 /* Unregister the physical port VFI */
6364 rc = lpfc_issue_unreg_vfi(phba->pport);
6369 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
6370 * @phba: Pointer to hba context object.
6372 * This function issues synchronous unregister FCF mailbox command to HBA to
6373 * unregister the currently registered FCF record. The driver does not reset
6374 * the driver FCF usage state flags.
6376 * Return 0 if successfully issued, none-zero otherwise.
6379 lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
6384 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6386 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6387 "2551 UNREG_FCFI mbox allocation failed"
6388 "HBA state x%x\n", phba->pport->port_state);
6391 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
6392 mbox->vport = phba->pport;
6393 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
6394 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6396 if (rc == MBX_NOT_FINISHED) {
6397 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6398 "2552 Unregister FCFI command failed rc x%x "
6400 rc, phba->pport->port_state);
6407 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
6408 * @phba: Pointer to hba context object.
6410 * This function unregisters the currently reigstered FCF. This function
6411 * also tries to find another FCF for discovery by rescan the HBA FCF table.
6414 lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
6418 /* Preparation for unregistering fcf */
6419 rc = lpfc_unregister_fcf_prep(phba);
6421 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6422 "2748 Failed to prepare for unregistering "
6423 "HBA's FCF record: rc=%d\n", rc);
6427 /* Now, unregister FCF record and reset HBA FCF state */
6428 rc = lpfc_sli4_unregister_fcf(phba);
6431 /* Reset HBA FCF states after successful unregister FCF */
6432 phba->fcf.fcf_flag = 0;
6433 phba->fcf.current_rec.flag = 0;
6436 * If driver is not unloading, check if there is any other
6437 * FCF record that can be used for discovery.
6439 if ((phba->pport->load_flag & FC_UNLOADING) ||
6440 (phba->link_state < LPFC_LINK_UP))
6443 /* This is considered as the initial FCF discovery scan */
6444 spin_lock_irq(&phba->hbalock);
6445 phba->fcf.fcf_flag |= FCF_INIT_DISC;
6446 spin_unlock_irq(&phba->hbalock);
6448 /* Reset FCF roundrobin bmask for new discovery */
6449 lpfc_sli4_clear_fcf_rr_bmask(phba);
6451 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6454 spin_lock_irq(&phba->hbalock);
6455 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
6456 spin_unlock_irq(&phba->hbalock);
6457 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
6458 "2553 lpfc_unregister_unused_fcf failed "
6459 "to read FCF record HBA state x%x\n",
6460 phba->pport->port_state);
6465 * lpfc_unregister_fcf - Unregister the currently registered fcf record
6466 * @phba: Pointer to hba context object.
6468 * This function just unregisters the currently reigstered FCF. It does not
6469 * try to find another FCF for discovery.
6472 lpfc_unregister_fcf(struct lpfc_hba *phba)
6476 /* Preparation for unregistering fcf */
6477 rc = lpfc_unregister_fcf_prep(phba);
6479 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6480 "2749 Failed to prepare for unregistering "
6481 "HBA's FCF record: rc=%d\n", rc);
6485 /* Now, unregister FCF record and reset HBA FCF state */
6486 rc = lpfc_sli4_unregister_fcf(phba);
6489 /* Set proper HBA FCF states after successful unregister FCF */
6490 spin_lock_irq(&phba->hbalock);
6491 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
6492 spin_unlock_irq(&phba->hbalock);
6496 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
6497 * @phba: Pointer to hba context object.
6499 * This function check if there are any connected remote port for the FCF and
6500 * if all the devices are disconnected, this function unregister FCFI.
6501 * This function also tries to use another FCF for discovery.
6504 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
6507 * If HBA is not running in FIP mode, if HBA does not support
6508 * FCoE, if FCF discovery is ongoing, or if FCF has not been
6509 * registered, do nothing.
6511 spin_lock_irq(&phba->hbalock);
6512 if (!(phba->hba_flag & HBA_FCOE_MODE) ||
6513 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
6514 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
6515 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
6516 (phba->pport->port_state == LPFC_FLOGI)) {
6517 spin_unlock_irq(&phba->hbalock);
6520 spin_unlock_irq(&phba->hbalock);
6522 if (lpfc_fcf_inuse(phba))
6525 lpfc_unregister_fcf_rescan(phba);
6529 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
6530 * @phba: Pointer to hba context object.
6531 * @buff: Buffer containing the FCF connection table as in the config
6533 * This function create driver data structure for the FCF connection
6534 * record table read from config region 23.
6537 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
6540 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6541 struct lpfc_fcf_conn_hdr *conn_hdr;
6542 struct lpfc_fcf_conn_rec *conn_rec;
6543 uint32_t record_count;
6546 /* Free the current connect table */
6547 list_for_each_entry_safe(conn_entry, next_conn_entry,
6548 &phba->fcf_conn_rec_list, list) {
6549 list_del_init(&conn_entry->list);
6553 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
6554 record_count = conn_hdr->length * sizeof(uint32_t)/
6555 sizeof(struct lpfc_fcf_conn_rec);
6557 conn_rec = (struct lpfc_fcf_conn_rec *)
6558 (buff + sizeof(struct lpfc_fcf_conn_hdr));
6560 for (i = 0; i < record_count; i++) {
6561 if (!(conn_rec[i].flags & FCFCNCT_VALID))
6563 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
6566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6567 "2566 Failed to allocate connection"
6572 memcpy(&conn_entry->conn_rec, &conn_rec[i],
6573 sizeof(struct lpfc_fcf_conn_rec));
6574 list_add_tail(&conn_entry->list,
6575 &phba->fcf_conn_rec_list);
6578 if (!list_empty(&phba->fcf_conn_rec_list)) {
6580 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list,
6582 conn_rec = &conn_entry->conn_rec;
6583 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6584 "3345 FCF connection list rec[%02d]: "
6585 "flags:x%04x, vtag:x%04x, "
6586 "fabric_name:x%02x:%02x:%02x:%02x:"
6587 "%02x:%02x:%02x:%02x, "
6588 "switch_name:x%02x:%02x:%02x:%02x:"
6589 "%02x:%02x:%02x:%02x\n", i++,
6590 conn_rec->flags, conn_rec->vlan_tag,
6591 conn_rec->fabric_name[0],
6592 conn_rec->fabric_name[1],
6593 conn_rec->fabric_name[2],
6594 conn_rec->fabric_name[3],
6595 conn_rec->fabric_name[4],
6596 conn_rec->fabric_name[5],
6597 conn_rec->fabric_name[6],
6598 conn_rec->fabric_name[7],
6599 conn_rec->switch_name[0],
6600 conn_rec->switch_name[1],
6601 conn_rec->switch_name[2],
6602 conn_rec->switch_name[3],
6603 conn_rec->switch_name[4],
6604 conn_rec->switch_name[5],
6605 conn_rec->switch_name[6],
6606 conn_rec->switch_name[7]);
6612 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6613 * @phba: Pointer to hba context object.
6614 * @buff: Buffer containing the FCoE parameter data structure.
6616 * This function update driver data structure with config
6617 * parameters read from config region 23.
6620 lpfc_read_fcoe_param(struct lpfc_hba *phba,
6623 struct lpfc_fip_param_hdr *fcoe_param_hdr;
6624 struct lpfc_fcoe_params *fcoe_param;
6626 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
6628 fcoe_param = (struct lpfc_fcoe_params *)
6629 (buff + sizeof(struct lpfc_fip_param_hdr));
6631 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
6632 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
6635 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
6636 phba->valid_vlan = 1;
6637 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
6641 phba->fc_map[0] = fcoe_param->fc_map[0];
6642 phba->fc_map[1] = fcoe_param->fc_map[1];
6643 phba->fc_map[2] = fcoe_param->fc_map[2];
6648 * lpfc_get_rec_conf23 - Get a record type in config region data.
6649 * @buff: Buffer containing config region 23 data.
6650 * @size: Size of the data buffer.
6651 * @rec_type: Record type to be searched.
6653 * This function searches config region data to find the beginning
6654 * of the record specified by record_type. If record found, this
6655 * function return pointer to the record else return NULL.
6658 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
6660 uint32_t offset = 0, rec_length;
6662 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
6663 (size < sizeof(uint32_t)))
6666 rec_length = buff[offset + 1];
6669 * One TLV record has one word header and number of data words
6670 * specified in the rec_length field of the record header.
6672 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
6674 if (buff[offset] == rec_type)
6675 return &buff[offset];
6677 if (buff[offset] == LPFC_REGION23_LAST_REC)
6680 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
6681 rec_length = buff[offset + 1];
6687 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6688 * @phba: Pointer to lpfc_hba data structure.
6689 * @buff: Buffer containing config region 23 data.
6690 * @size: Size of the data buffer.
6692 * This function parses the FCoE config parameters in config region 23 and
6693 * populate driver data structure with the parameters.
6696 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
6700 uint32_t offset = 0;
6704 * If data size is less than 2 words signature and version cannot be
6707 if (size < 2*sizeof(uint32_t))
6710 /* Check the region signature first */
6711 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
6712 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6713 "2567 Config region 23 has bad signature\n");
6719 /* Check the data structure version */
6720 if (buff[offset] != LPFC_REGION23_VERSION) {
6721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6722 "2568 Config region 23 has bad version\n");
6727 /* Read FCoE param record */
6728 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6729 size - offset, FCOE_PARAM_TYPE);
6731 lpfc_read_fcoe_param(phba, rec_ptr);
6733 /* Read FCF connection table */
6734 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6735 size - offset, FCOE_CONN_TBL_TYPE);
6737 lpfc_read_fcf_conn_tbl(phba, rec_ptr);