projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
i40e: Implement ndo_features_check()
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
CommitLineData
dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
f25e8e79 4 * Copyright (C) 2004-2015 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
a93ff37a 23#include <linux/delay.h>
5a0e3ad6 24#include <linux/slab.h>
dea3101e 25#include <linux/pci.h>
26#include <linux/kthread.h>
27#include <linux/interrupt.h>
28
91886523 29#include <scsi/scsi.h>
dea3101e 30#include <scsi/scsi_device.h>
31#include <scsi/scsi_host.h>
32#include <scsi/scsi_transport_fc.h>
33
da0436e9 34#include "lpfc_hw4.h"
dea3101e 35#include "lpfc_hw.h"
ea2151b4 36#include "lpfc_nl.h"
dea3101e 37#include "lpfc_disc.h"
38#include "lpfc_sli.h"
da0436e9 39#include "lpfc_sli4.h"
dea3101e 40#include "lpfc_scsi.h"
41#include "lpfc.h"
42#include "lpfc_logmsg.h"
43#include "lpfc_crtn.h"
92d7f7b0 44#include "lpfc_vport.h"
858c9f6c 45#include "lpfc_debugfs.h"
dea3101e 46
47/* AlpaArray for assignment of scsid for scan-down and bind_method */
48static uint8_t lpfcAlpaArray[] = {
49 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
50 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
51 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
52 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
53 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
54 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
55 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
56 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
57 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
58 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
59 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
60 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
61 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
62};
63
2e0fef85 64static void lpfc_disc_timeout_handler(struct lpfc_vport *);
a6ababd2 65static void lpfc_disc_flush_list(struct lpfc_vport *vport);
32b9793f 66static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
a93ff37a 67static int lpfc_fcf_inuse(struct lpfc_hba *);
dea3101e 68
c01f3208
JS		 69void
70lpfc_terminate_rport_io(struct fc_rport *rport)
dea3101e 71{
c01f3208
JS		 72 struct lpfc_rport_data *rdata;
73 struct lpfc_nodelist * ndlp;
74 struct lpfc_hba *phba;
dea3101e 75
c01f3208
JS		 76 rdata = rport->dd_data;
77 ndlp = rdata->pnode;
78
58da1ffb 79 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
c01f3208
JS		 80 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
81 printk(KERN_ERR "Cannot find remote node"
82 " to terminate I/O Data x%x\n",
83 rport->port_id);
dea3101e 84 return;
85 }
86
a257bf90 87 phba = ndlp->phba;
c01f3208 88
858c9f6c
JS		 89 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
90 "rport terminate: sid:x%x did:x%x flg:x%x",
91 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
92
c01f3208 93 if (ndlp->nlp_sid != NLP_NO_SID) {
51ef4c26
JS		 94 lpfc_sli_abort_iocb(ndlp->vport,
95 &phba->sli.ring[phba->sli.fcp_ring],
96 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
c01f3208 97 }
c01f3208
JS		 98}
99
100/*
101 * This function will be called when dev_loss_tmo fire.
102 */
103void
104lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
105{
106 struct lpfc_rport_data *rdata;
107 struct lpfc_nodelist * ndlp;
2e0fef85 108 struct lpfc_vport *vport;
466e840b 109 struct Scsi_Host *shost;
858c9f6c 110 struct lpfc_hba *phba;
858c9f6c 111 struct lpfc_work_evt *evtp;
a8adb832
JS		 112 int put_node;
113 int put_rport;
c01f3208
JS		 114
115 rdata = rport->dd_data;
116 ndlp = rdata->pnode;
58da1ffb 117 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
c01f3208 118 return;
c01f3208 119
858c9f6c
JS		 120 vport = ndlp->vport;
121 phba = vport->phba;
122
123 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
124 "rport devlosscb: sid:x%x did:x%x flg:x%x",
125 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
126
34f5ad8b
JS		 127 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
128 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n",
129 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
130
a8adb832
JS		 131 /* Don't defer this if we are in the process of deleting the vport
132 * or unloading the driver. The unload will cleanup the node
133 * appropriately we just need to cleanup the ndlp rport info here.
134 */
135 if (vport->load_flag & FC_UNLOADING) {
136 put_node = rdata->pnode != NULL;
137 put_rport = ndlp->rport != NULL;
138 rdata->pnode = NULL;
139 ndlp->rport = NULL;
140 if (put_node)
141 lpfc_nlp_put(ndlp);
142 if (put_rport)
143 put_device(&rport->dev);
144 return;
145 }
146
147 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
148 return;
149
466e840b
JS		 150 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn))
151 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
152 "6789 rport name %llx != node port name %llx",
153 rport->port_name,
154 wwn_to_u64(ndlp->nlp_portname.u.wwn));
34f5ad8b 155
858c9f6c
JS		 156 evtp = &ndlp->dev_loss_evt;
157
466e840b
JS		 158 if (!list_empty(&evtp->evt_listp)) {
159 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
160 "6790 rport name %llx dev_loss_evt pending",
161 rport->port_name);
858c9f6c 162 return;
466e840b 163 }
858c9f6c 164
466e840b
JS		 165 shost = lpfc_shost_from_vport(vport);
166 spin_lock_irq(shost->host_lock);
167 ndlp->nlp_flag |= NLP_IN_DEV_LOSS;
168 spin_unlock_irq(shost->host_lock);
a62a435a 169
fa4066b6
JS		 170 /* We need to hold the node by incrementing the reference
171 * count until this queued work is done
172 */
466e840b
JS		 173 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
174
175 spin_lock_irq(&phba->hbalock);
5e9d9b82
JS		 176 if (evtp->evt_arg1) {
177 evtp->evt = LPFC_EVT_DEV_LOSS;
178 list_add_tail(&evtp->evt_listp, &phba->work_list);
179 lpfc_worker_wake_up(phba);
180 }
858c9f6c
JS		 181 spin_unlock_irq(&phba->hbalock);
182
858c9f6c
JS		 183 return;
184}
185
a93ff37a
JS		 186/**
187 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
188 * @ndlp: Pointer to remote node object.
189 *
190 * This function is called from the worker thread when devloss timeout timer
191 * expires. For SLI4 host, this routine shall return 1 when at lease one
192 * remote node, including this @ndlp, is still in use of FCF; otherwise, this
193 * routine shall return 0 when there is no remote node is still in use of FCF
194 * when devloss timeout happened to this @ndlp.
195 **/
196static int
858c9f6c
JS		 197lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
198{
199 struct lpfc_rport_data *rdata;
200 struct fc_rport *rport;
201 struct lpfc_vport *vport;
202 struct lpfc_hba *phba;
466e840b 203 struct Scsi_Host *shost;
858c9f6c 204 uint8_t *name;
87af33fe 205 int put_node;
858c9f6c 206 int warn_on = 0;
a93ff37a 207 int fcf_inuse = 0;
858c9f6c
JS		 208
209 rport = ndlp->rport;
466e840b
JS		 210 vport = ndlp->vport;
211 shost = lpfc_shost_from_vport(vport);
858c9f6c 212
466e840b
JS		 213 spin_lock_irq(shost->host_lock);
214 ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
215 spin_unlock_irq(shost->host_lock);
216
217 if (!rport)
a93ff37a 218 return fcf_inuse;
858c9f6c 219
858c9f6c 220 name = (uint8_t *) &ndlp->nlp_portname;
858c9f6c
JS		 221 phba = vport->phba;
222
a93ff37a
JS		 223 if (phba->sli_rev == LPFC_SLI_REV4)
224 fcf_inuse = lpfc_fcf_inuse(phba);
225
858c9f6c
JS		 226 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
227 "rport devlosstmo:did:x%x type:x%x id:x%x",
228 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
229
34f5ad8b
JS		 230 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
231 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n",
232 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
233
466e840b
JS		 234 /*
235 * lpfc_nlp_remove if reached with dangling rport drops the
236 * reference. To make sure that does not happen clear rport
237 * pointer in ndlp before lpfc_nlp_put.
238 */
239 rdata = rport->dd_data;
240
a8adb832
JS		 241 /* Don't defer this if we are in the process of deleting the vport
242 * or unloading the driver. The unload will cleanup the node
243 * appropriately we just need to cleanup the ndlp rport info here.
244 */
245 if (vport->load_flag & FC_UNLOADING) {
09372820
JS		 246 if (ndlp->nlp_sid != NLP_NO_SID) {
247 /* flush the target */
248 lpfc_sli_abort_iocb(vport,
249 &phba->sli.ring[phba->sli.fcp_ring],
250 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
251 }
a8adb832 252 put_node = rdata->pnode != NULL;
a8adb832
JS		 253 rdata->pnode = NULL;
254 ndlp->rport = NULL;
255 if (put_node)
256 lpfc_nlp_put(ndlp);
466e840b
JS		 257 put_device(&rport->dev);
258
a93ff37a 259 return fcf_inuse;
a8adb832
JS		 260 }
261
d7c255b2
JS		 262 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
263 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
264 "0284 Devloss timeout Ignored on "
265 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
266 "NPort x%x\n",
267 *name, *(name+1), *(name+2), *(name+3),
268 *(name+4), *(name+5), *(name+6), *(name+7),
269 ndlp->nlp_DID);
a93ff37a 270 return fcf_inuse;
d7c255b2 271 }
858c9f6c 272
466e840b
JS		 273 put_node = rdata->pnode != NULL;
274 rdata->pnode = NULL;
275 ndlp->rport = NULL;
276 if (put_node)
277 lpfc_nlp_put(ndlp);
278 put_device(&rport->dev);
279
280 if (ndlp->nlp_type & NLP_FABRIC)
a93ff37a 281 return fcf_inuse;
82085718 282
dea3101e 283 if (ndlp->nlp_sid != NLP_NO_SID) {
6e8215e4 284 warn_on = 1;
51ef4c26
JS		 285 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
286 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
dea3101e 287 }
c01f3208 288
6e8215e4 289 if (warn_on) {
e8b62011
JS		 290 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
291 "0203 Devloss timeout on "
58da1ffb
JS		 292 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
293 "NPort x%06x Data: x%x x%x x%x\n",
e8b62011
JS		 294 *name, *(name+1), *(name+2), *(name+3),
295 *(name+4), *(name+5), *(name+6), *(name+7),
296 ndlp->nlp_DID, ndlp->nlp_flag,
297 ndlp->nlp_state, ndlp->nlp_rpi);
6e8215e4 298 } else {
e8b62011
JS		 299 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
300 "0204 Devloss timeout on "
58da1ffb
JS		 301 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
302 "NPort x%06x Data: x%x x%x x%x\n",
e8b62011
JS		 303 *name, *(name+1), *(name+2), *(name+3),
304 *(name+4), *(name+5), *(name+6), *(name+7),
305 ndlp->nlp_DID, ndlp->nlp_flag,
306 ndlp->nlp_state, ndlp->nlp_rpi);
6e8215e4
JSEC		 307 }
308
2e0fef85 309 if (!(vport->load_flag & FC_UNLOADING) &&
1dcb58e5 310 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
82085718 311 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
ffc95493 312 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
589a52d6
JS		 313 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) &&
314 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE))
2e0fef85 315 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
6fb120a7 316
a93ff37a
JS		 317 return fcf_inuse;
318}
319
320/**
321 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
322 * @phba: Pointer to hba context object.
323 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
324 * @nlp_did: remote node identifer with devloss timeout.
325 *
326 * This function is called from the worker thread after invoking devloss
327 * timeout handler and releasing the reference count for the ndlp with
328 * which the devloss timeout was handled for SLI4 host. For the devloss
329 * timeout of the last remote node which had been in use of FCF, when this
330 * routine is invoked, it shall be guaranteed that none of the remote are
331 * in-use of FCF. When devloss timeout to the last remote using the FCF,
332 * if the FIP engine is neither in FCF table scan process nor roundrobin
333 * failover process, the in-use FCF shall be unregistered. If the FIP
334 * engine is in FCF discovery process, the devloss timeout state shall
335 * be set for either the FCF table scan process or roundrobin failover
336 * process to unregister the in-use FCF.
337 **/
338static void
339lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
340 uint32_t nlp_did)
341{
342 /* If devloss timeout happened to a remote node when FCF had no
343 * longer been in-use, do nothing.
344 */
345 if (!fcf_inuse)
346 return;
347
348 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
349 spin_lock_irq(&phba->hbalock);
350 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
351 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
352 spin_unlock_irq(&phba->hbalock);
353 return;
354 }
355 phba->hba_flag |= HBA_DEVLOSS_TMO;
356 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
357 "2847 Last remote node (x%x) using "
358 "FCF devloss tmo\n", nlp_did);
359 }
360 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
361 spin_unlock_irq(&phba->hbalock);
362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
363 "2868 Devloss tmo to FCF rediscovery "
364 "in progress\n");
365 return;
366 }
367 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
368 spin_unlock_irq(&phba->hbalock);
369 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
370 "2869 Devloss tmo to idle FIP engine, "
371 "unreg in-use FCF and rescan.\n");
372 /* Unregister in-use FCF and rescan */
373 lpfc_unregister_fcf_rescan(phba);
374 return;
375 }
376 spin_unlock_irq(&phba->hbalock);
377 if (phba->hba_flag & FCF_TS_INPROG)
378 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
379 "2870 FCF table scan in progress\n");
380 if (phba->hba_flag & FCF_RR_INPROG)
381 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
382 "2871 FLOGI roundrobin FCF failover "
383 "in progress\n");
384 }
6fb120a7 385 lpfc_unregister_unused_fcf(phba);
92d7f7b0 386}
c01f3208 387
ea2151b4 388/**
3621a710 389 * lpfc_alloc_fast_evt - Allocates data structure for posting event
ea2151b4
JS		 390 * @phba: Pointer to hba context object.
391 *
392 * This function is called from the functions which need to post
393 * events from interrupt context. This function allocates data
394 * structure required for posting event. It also keeps track of
395 * number of events pending and prevent event storm when there are
396 * too many events.
397 **/
398struct lpfc_fast_path_event *
399lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
400 struct lpfc_fast_path_event *ret;
401
402 /* If there are lot of fast event do not exhaust memory due to this */
403 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
404 return NULL;
405
406 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
407 GFP_ATOMIC);
6fb120a7 408 if (ret) {
ea2151b4 409 atomic_inc(&phba->fast_event_count);
6fb120a7
JS		 410 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
411 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
412 }
ea2151b4
JS		 413 return ret;
414}
415
416/**
3621a710 417 * lpfc_free_fast_evt - Frees event data structure
ea2151b4
JS		 418 * @phba: Pointer to hba context object.
419 * @evt: Event object which need to be freed.
420 *
421 * This function frees the data structure required for posting
422 * events.
423 **/
424void
425lpfc_free_fast_evt(struct lpfc_hba *phba,
426 struct lpfc_fast_path_event *evt) {
427
428 atomic_dec(&phba->fast_event_count);
429 kfree(evt);
430}
431
432/**
3621a710 433 * lpfc_send_fastpath_evt - Posts events generated from fast path
ea2151b4
JS		 434 * @phba: Pointer to hba context object.
435 * @evtp: Event data structure.
436 *
437 * This function is called from worker thread, when the interrupt
438 * context need to post an event. This function posts the event
439 * to fc transport netlink interface.
440 **/
441static void
442lpfc_send_fastpath_evt(struct lpfc_hba *phba,
443 struct lpfc_work_evt *evtp)
444{
445 unsigned long evt_category, evt_sub_category;
446 struct lpfc_fast_path_event *fast_evt_data;
447 char *evt_data;
448 uint32_t evt_data_size;
449 struct Scsi_Host *shost;
450
451 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
452 work_evt);
453
454 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
455 evt_sub_category = (unsigned long) fast_evt_data->un.
456 fabric_evt.subcategory;
457 shost = lpfc_shost_from_vport(fast_evt_data->vport);
458 if (evt_category == FC_REG_FABRIC_EVENT) {
459 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
460 evt_data = (char *) &fast_evt_data->un.read_check_error;
461 evt_data_size = sizeof(fast_evt_data->un.
462 read_check_error);
463 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
eaf15d5b 464 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
ea2151b4
JS		 465 evt_data = (char *) &fast_evt_data->un.fabric_evt;
466 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
467 } else {
468 lpfc_free_fast_evt(phba, fast_evt_data);
469 return;
470 }
471 } else if (evt_category == FC_REG_SCSI_EVENT) {
472 switch (evt_sub_category) {
473 case LPFC_EVENT_QFULL:
474 case LPFC_EVENT_DEVBSY:
475 evt_data = (char *) &fast_evt_data->un.scsi_evt;
476 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
477 break;
478 case LPFC_EVENT_CHECK_COND:
479 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
480 evt_data_size = sizeof(fast_evt_data->un.
481 check_cond_evt);
482 break;
483 case LPFC_EVENT_VARQUEDEPTH:
484 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
485 evt_data_size = sizeof(fast_evt_data->un.
486 queue_depth_evt);
487 break;
488 default:
489 lpfc_free_fast_evt(phba, fast_evt_data);
490 return;
491 }
492 } else {
493 lpfc_free_fast_evt(phba, fast_evt_data);
494 return;
495 }
496
497 fc_host_post_vendor_event(shost,
498 fc_get_event_number(),
499 evt_data_size,
500 evt_data,
ddcc50f0 501 LPFC_NL_VENDOR_ID);
ea2151b4
JS		 502
503 lpfc_free_fast_evt(phba, fast_evt_data);
504 return;
505}
506
dea3101e 507static void
2e0fef85 508lpfc_work_list_done(struct lpfc_hba *phba)
dea3101e 509{
510 struct lpfc_work_evt *evtp = NULL;
511 struct lpfc_nodelist *ndlp;
512 int free_evt;
a93ff37a
JS		 513 int fcf_inuse;
514 uint32_t nlp_did;
dea3101e 515
2e0fef85
JS		 516 spin_lock_irq(&phba->hbalock);
517 while (!list_empty(&phba->work_list)) {
dea3101e 518 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
519 evt_listp);
2e0fef85 520 spin_unlock_irq(&phba->hbalock);
dea3101e 521 free_evt = 1;
2fe165b6 522 switch (evtp->evt) {
dea3101e 523 case LPFC_EVT_ELS_RETRY:
2e0fef85 524 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
dea3101e 525 lpfc_els_retry_delay_handler(ndlp);
92d7f7b0 526 free_evt = 0; /* evt is part of ndlp */
fa4066b6
JS		 527 /* decrement the node reference count held
528 * for this queued work
529 */
530 lpfc_nlp_put(ndlp);
dea3101e 531 break;
858c9f6c
JS		 532 case LPFC_EVT_DEV_LOSS:
533 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
a93ff37a 534 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
858c9f6c 535 free_evt = 0;
fa4066b6
JS		 536 /* decrement the node reference count held for
537 * this queued work
538 */
a93ff37a 539 nlp_did = ndlp->nlp_DID;
858c9f6c 540 lpfc_nlp_put(ndlp);
a93ff37a
JS		 541 if (phba->sli_rev == LPFC_SLI_REV4)
542 lpfc_sli4_post_dev_loss_tmo_handler(phba,
543 fcf_inuse,
544 nlp_did);
858c9f6c 545 break;
dea3101e 546 case LPFC_EVT_ONLINE:
2e0fef85
JS		 547 if (phba->link_state < LPFC_LINK_DOWN)
548 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
41415862 549 else
2e0fef85 550 *(int *) (evtp->evt_arg1) = 0;
dea3101e 551 complete((struct completion *)(evtp->evt_arg2));
552 break;
46fa311e 553 case LPFC_EVT_OFFLINE_PREP:
2e0fef85 554 if (phba->link_state >= LPFC_LINK_DOWN)
618a5230 555 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
46fa311e
JS		 556 *(int *)(evtp->evt_arg1) = 0;
557 complete((struct completion *)(evtp->evt_arg2));
558 break;
559 case LPFC_EVT_OFFLINE:
560 lpfc_offline(phba);
41415862
JW		 561 lpfc_sli_brdrestart(phba);
562 *(int *)(evtp->evt_arg1) =
46fa311e
JS		 563 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
564 lpfc_unblock_mgmt_io(phba);
41415862
JW		 565 complete((struct completion *)(evtp->evt_arg2));
566 break;
567 case LPFC_EVT_WARM_START:
46fa311e 568 lpfc_offline(phba);
9290831f 569 lpfc_reset_barrier(phba);
41415862
JW		 570 lpfc_sli_brdreset(phba);
571 lpfc_hba_down_post(phba);
572 *(int *)(evtp->evt_arg1) =
573 lpfc_sli_brdready(phba, HS_MBRDY);
46fa311e 574 lpfc_unblock_mgmt_io(phba);
41415862
JW		 575 complete((struct completion *)(evtp->evt_arg2));
576 break;
577 case LPFC_EVT_KILL:
46fa311e 578 lpfc_offline(phba);
9290831f 579 *(int *)(evtp->evt_arg1)
2e0fef85
JS		 580 = (phba->pport->stopped)
581 ? 0 : lpfc_sli_brdkill(phba);
46fa311e 582 lpfc_unblock_mgmt_io(phba);
dea3101e 583 complete((struct completion *)(evtp->evt_arg2));
584 break;
ea2151b4
JS		 585 case LPFC_EVT_FASTPATH_MGMT_EVT:
586 lpfc_send_fastpath_evt(phba, evtp);
587 free_evt = 0;
588 break;
78730cfe
JS		 589 case LPFC_EVT_RESET_HBA:
590 if (!(phba->pport->load_flag & FC_UNLOADING))
591 lpfc_reset_hba(phba);
592 break;
dea3101e 593 }
594 if (free_evt)
595 kfree(evtp);
2e0fef85 596 spin_lock_irq(&phba->hbalock);
dea3101e 597 }
2e0fef85 598 spin_unlock_irq(&phba->hbalock);
dea3101e 599
600}
601
311464ec 602static void
2e0fef85 603lpfc_work_done(struct lpfc_hba *phba)
dea3101e 604{
605 struct lpfc_sli_ring *pring;
858c9f6c 606 uint32_t ha_copy, status, control, work_port_events;
549e55cd 607 struct lpfc_vport **vports;
51ef4c26 608 struct lpfc_vport *vport;
549e55cd 609 int i;
dea3101e 610
2e0fef85 611 spin_lock_irq(&phba->hbalock);
dea3101e 612 ha_copy = phba->work_ha;
613 phba->work_ha = 0;
2e0fef85 614 spin_unlock_irq(&phba->hbalock);
dea3101e 615
da0436e9
JS		 616 /* First, try to post the next mailbox command to SLI4 device */
617 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
618 lpfc_sli4_post_async_mbox(phba);
619
2fe165b6 620 if (ha_copy & HA_ERATT)
9399627f 621 /* Handle the error attention event */
dea3101e 622 lpfc_handle_eratt(phba);
623
2fe165b6 624 if (ha_copy & HA_MBATT)
dea3101e 625 lpfc_sli_handle_mb_event(phba);
626
2fe165b6 627 if (ha_copy & HA_LATT)
dea3101e 628 lpfc_handle_latt(phba);
9399627f 629
da0436e9
JS		 630 /* Process SLI4 events */
631 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
19ca7609
JS		 632 if (phba->hba_flag & HBA_RRQ_ACTIVE)
633 lpfc_handle_rrq_active(phba);
da0436e9
JS		 634 if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
635 lpfc_sli4_fcp_xri_abort_event_proc(phba);
636 if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
637 lpfc_sli4_els_xri_abort_event_proc(phba);
638 if (phba->hba_flag & ASYNC_EVENT)
639 lpfc_sli4_async_event_proc(phba);
640 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
641 spin_lock_irq(&phba->hbalock);
642 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
643 spin_unlock_irq(&phba->hbalock);
644 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
645 }
ecfd03c6
JS		 646 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
647 lpfc_sli4_fcf_redisc_event_proc(phba);
da0436e9
JS		 648 }
649
549e55cd
JS		 650 vports = lpfc_create_vport_work_array(phba);
651 if (vports != NULL)
da0436e9 652 for (i = 0; i <= phba->max_vports; i++) {
51ef4c26
JS		 653 /*
654 * We could have no vports in array if unloading, so if
655 * this happens then just use the pport
656 */
657 if (vports[i] == NULL && i == 0)
658 vport = phba->pport;
659 else
660 vport = vports[i];
661 if (vport == NULL)
662 break;
58da1ffb 663 spin_lock_irq(&vport->work_port_lock);
51ef4c26 664 work_port_events = vport->work_port_events;
58da1ffb
JS		 665 vport->work_port_events &= ~work_port_events;
666 spin_unlock_irq(&vport->work_port_lock);
549e55cd 667 if (work_port_events & WORKER_DISC_TMO)
51ef4c26 668 lpfc_disc_timeout_handler(vport);
549e55cd 669 if (work_port_events & WORKER_ELS_TMO)
51ef4c26 670 lpfc_els_timeout_handler(vport);
549e55cd
JS		 671 if (work_port_events & WORKER_HB_TMO)
672 lpfc_hb_timeout_handler(phba);
673 if (work_port_events & WORKER_MBOX_TMO)
674 lpfc_mbox_timeout_handler(phba);
675 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
676 lpfc_unblock_fabric_iocbs(phba);
677 if (work_port_events & WORKER_FDMI_TMO)
51ef4c26 678 lpfc_fdmi_timeout_handler(vport);
549e55cd
JS		 679 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
680 lpfc_ramp_down_queue_handler(phba);
92494144
JS		 681 if (work_port_events & WORKER_DELAYED_DISC_TMO)
682 lpfc_delayed_disc_timeout_handler(vport);
92d7f7b0 683 }
09372820 684 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 685
858c9f6c
JS		 686 pring = &phba->sli.ring[LPFC_ELS_RING];
687 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
688 status >>= (4*LPFC_ELS_RING);
4d9ab994
JS		 689 if ((status & HA_RXMASK) ||
690 (pring->flag & LPFC_DEFERRED_RING_EVENT) ||
45ed1190 691 (phba->hba_flag & HBA_SP_QUEUE_EVT)) {
0b727fea 692 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
858c9f6c 693 pring->flag |= LPFC_DEFERRED_RING_EVENT;
5e9d9b82
JS		 694 /* Set the lpfc data pending flag */
695 set_bit(LPFC_DATA_READY, &phba->data_flags);
858c9f6c 696 } else {
94661504
JS		 697 if (phba->link_state >= LPFC_LINK_UP) {
698 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
699 lpfc_sli_handle_slow_ring_event(phba, pring,
700 (status &
701 HA_RXMASK));
702 }
858c9f6c 703 }
0e9bb8d7
JS		 704 if ((phba->sli_rev == LPFC_SLI_REV4) &
705 (!list_empty(&pring->txq)))
2a9bf3d0 706 lpfc_drain_txq(phba);
858c9f6c
JS		 707 /*
708 * Turn on Ring interrupts
709 */
3772a991
JS		 710 if (phba->sli_rev <= LPFC_SLI_REV3) {
711 spin_lock_irq(&phba->hbalock);
712 control = readl(phba->HCregaddr);
713 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
714 lpfc_debugfs_slow_ring_trc(phba,
715 "WRK Enable ring: cntl:x%x hacopy:x%x",
716 control, ha_copy, 0);
717
718 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
719 writel(control, phba->HCregaddr);
720 readl(phba->HCregaddr); /* flush */
721 } else {
722 lpfc_debugfs_slow_ring_trc(phba,
723 "WRK Ring ok: cntl:x%x hacopy:x%x",
724 control, ha_copy, 0);
725 }
726 spin_unlock_irq(&phba->hbalock);
a58cbd52 727 }
dea3101e 728 }
2e0fef85 729 lpfc_work_list_done(phba);
dea3101e 730}
731
dea3101e 732int
733lpfc_do_work(void *p)
734{
735 struct lpfc_hba *phba = p;
736 int rc;
dea3101e 737
8698a745 738 set_user_nice(current, MIN_NICE);
043c956f 739 current->flags |= PF_NOFREEZE;
5e9d9b82 740 phba->data_flags = 0;
dea3101e 741
3a55b532 742 while (!kthread_should_stop()) {
5e9d9b82
JS		 743 /* wait and check worker queue activities */
744 rc = wait_event_interruptible(phba->work_waitq,
745 (test_and_clear_bit(LPFC_DATA_READY,
746 &phba->data_flags)
747 || kthread_should_stop()));
3a55b532
JS		 748 /* Signal wakeup shall terminate the worker thread */
749 if (rc) {
750 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
751 "0433 Wakeup on signal: rc=x%x\n", rc);
dea3101e 752 break;
3a55b532 753 }
dea3101e 754
5e9d9b82 755 /* Attend pending lpfc data processing */
dea3101e 756 lpfc_work_done(phba);
dea3101e 757 }
3a55b532
JS		 758 phba->worker_thread = NULL;
759 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
760 "0432 Worker thread stopped.\n");
dea3101e 761 return 0;
762}
763
764/*
765 * This is only called to handle FC worker events. Since this a rare
25985edc 766 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
dea3101e 767 * embedding it in the IOCB.
768 */
769int
2e0fef85 770lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
dea3101e 771 uint32_t evt)
772{
773 struct lpfc_work_evt *evtp;
ed957684 774 unsigned long flags;
dea3101e 775
776 /*
777 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
778 * be queued to worker thread for processing
779 */
92d7f7b0 780 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
dea3101e 781 if (!evtp)
782 return 0;
783
784 evtp->evt_arg1 = arg1;
785 evtp->evt_arg2 = arg2;
786 evtp->evt = evt;
787
ed957684 788 spin_lock_irqsave(&phba->hbalock, flags);
071fbd3d 789 list_add_tail(&evtp->evt_listp, &phba->work_list);
ed957684 790 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e 791
5e9d9b82
JS		 792 lpfc_worker_wake_up(phba);
793
dea3101e 794 return 1;
795}
796
92d7f7b0
JS		 797void
798lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
799{
09372820 800 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0
JS		 801 struct lpfc_hba *phba = vport->phba;
802 struct lpfc_nodelist *ndlp, *next_ndlp;
803 int rc;
804
805 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 806 if (!NLP_CHK_NODE_ACT(ndlp))
807 continue;
92d7f7b0
JS		 808 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
809 continue;
98c9ea5c
JS		 810 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
811 ((vport->port_type == LPFC_NPIV_PORT) &&
812 (ndlp->nlp_DID == NameServer_DID)))
92d7f7b0
JS		 813 lpfc_unreg_rpi(vport, ndlp);
814
815 /* Leave Fabric nodes alone on link down */
4d9ab994
JS		 816 if ((phba->sli_rev < LPFC_SLI_REV4) &&
817 (!remove && ndlp->nlp_type & NLP_FABRIC))
92d7f7b0
JS		 818 continue;
819 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
820 remove
821 ? NLP_EVT_DEVICE_RM
822 : NLP_EVT_DEVICE_RECOVERY);
823 }
824 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
5af5eee7
JS		 825 if (phba->sli_rev == LPFC_SLI_REV4)
826 lpfc_sli4_unreg_all_rpis(vport);
92d7f7b0 827 lpfc_mbx_unreg_vpi(vport);
09372820 828 spin_lock_irq(shost->host_lock);
92d7f7b0 829 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
09372820 830 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS		 831 }
832}
833
87af33fe 834void
98c9ea5c 835lpfc_port_link_failure(struct lpfc_vport *vport)
92d7f7b0 836{
695a814e
JS		 837 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
838
45ed1190
JS		 839 /* Cleanup any outstanding received buffers */
840 lpfc_cleanup_rcv_buffers(vport);
841
92d7f7b0
JS		 842 /* Cleanup any outstanding RSCN activity */
843 lpfc_els_flush_rscn(vport);
844
845 /* Cleanup any outstanding ELS commands */
846 lpfc_els_flush_cmd(vport);
847
848 lpfc_cleanup_rpis(vport, 0);
849
92d7f7b0
JS		 850 /* Turn off discovery timer if its running */
851 lpfc_can_disctmo(vport);
852}
853
3772a991 854void
98c9ea5c
JS		 855lpfc_linkdown_port(struct lpfc_vport *vport)
856{
857 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
858
859 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
860
861 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
862 "Link Down: state:x%x rtry:x%x flg:x%x",
863 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
864
865 lpfc_port_link_failure(vport);
866
92494144
JS		 867 /* Stop delayed Nport discovery */
868 spin_lock_irq(shost->host_lock);
869 vport->fc_flag &= ~FC_DISC_DELAYED;
870 spin_unlock_irq(shost->host_lock);
871 del_timer_sync(&vport->delayed_disc_tmo);
98c9ea5c
JS		 872}
873
dea3101e 874int
685f0bf7 875lpfc_linkdown(struct lpfc_hba *phba)
dea3101e 876{
2e0fef85
JS		 877 struct lpfc_vport *vport = phba->pport;
878 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
549e55cd 879 struct lpfc_vport **vports;
685f0bf7 880 LPFC_MBOXQ_t *mb;
549e55cd 881 int i;
dea3101e 882
3163f725 883 if (phba->link_state == LPFC_LINK_DOWN)
2e0fef85 884 return 0;
aacc20e3
JS		 885
886 /* Block all SCSI stack I/Os */
887 lpfc_scsi_dev_block(phba);
888
2e0fef85 889 spin_lock_irq(&phba->hbalock);
ecfd03c6 890 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
72100cc4 891 spin_unlock_irq(&phba->hbalock);
92d7f7b0 892 if (phba->link_state > LPFC_LINK_DOWN) {
2e0fef85 893 phba->link_state = LPFC_LINK_DOWN;
72100cc4 894 spin_lock_irq(shost->host_lock);
92d7f7b0 895 phba->pport->fc_flag &= ~FC_LBIT;
72100cc4 896 spin_unlock_irq(shost->host_lock);
92d7f7b0 897 }
549e55cd
JS		 898 vports = lpfc_create_vport_work_array(phba);
899 if (vports != NULL)
6fb120a7 900 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd
JS		 901 /* Issue a LINK DOWN event to all nodes */
902 lpfc_linkdown_port(vports[i]);
903 }
09372820 904 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 905 /* Clean up any firmware default rpi's */
2e0fef85
JS		 906 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
907 if (mb) {
6d368e53 908 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
ed957684 909 mb->vport = vport;
2e0fef85 910 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 911 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
dea3101e 912 == MBX_NOT_FINISHED) {
2e0fef85 913 mempool_free(mb, phba->mbox_mem_pool);
dea3101e 914 }
915 }
916
dea3101e 917 /* Setup myDID for link up if we are in pt2pt mode */
92d7f7b0
JS		 918 if (phba->pport->fc_flag & FC_PT2PT) {
919 phba->pport->fc_myDID = 0;
2e0fef85
JS		 920 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
921 if (mb) {
dea3101e 922 lpfc_config_link(phba, mb);
92d7f7b0 923 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
ed957684 924 mb->vport = vport;
0b727fea 925 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
dea3101e 926 == MBX_NOT_FINISHED) {
2e0fef85 927 mempool_free(mb, phba->mbox_mem_pool);
dea3101e 928 }
929 }
2e0fef85 930 spin_lock_irq(shost->host_lock);
92d7f7b0 931 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
2e0fef85 932 spin_unlock_irq(shost->host_lock);
dea3101e 933 }
2e0fef85 934
92d7f7b0
JS		 935 return 0;
936}
dea3101e 937
92d7f7b0
JS		 938static void
939lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
940{
941 struct lpfc_nodelist *ndlp;
dea3101e 942
92d7f7b0 943 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 944 if (!NLP_CHK_NODE_ACT(ndlp))
945 continue;
92d7f7b0
JS		 946 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
947 continue;
92d7f7b0 948 if (ndlp->nlp_type & NLP_FABRIC) {
e47c9093
JS		 949 /* On Linkup its safe to clean up the ndlp
950 * from Fabric connections.
951 */
92d7f7b0
JS		 952 if (ndlp->nlp_DID != Fabric_DID)
953 lpfc_unreg_rpi(vport, ndlp);
954 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
955 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
e47c9093
JS		 956 /* Fail outstanding IO now since device is
957 * marked for PLOGI.
958 */
92d7f7b0
JS		 959 lpfc_unreg_rpi(vport, ndlp);
960 }
961 }
dea3101e 962}
963
92d7f7b0
JS		 964static void
965lpfc_linkup_port(struct lpfc_vport *vport)
dea3101e 966{
92d7f7b0 967 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0
JS		 968 struct lpfc_hba *phba = vport->phba;
969
970 if ((vport->load_flag & FC_UNLOADING) != 0)
971 return;
972
858c9f6c
JS		 973 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
974 "Link Up: top:x%x speed:x%x flg:x%x",
975 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
976
92d7f7b0
JS		 977 /* If NPIV is not enabled, only bring the physical port up */
978 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
979 (vport != phba->pport))
980 return;
dea3101e 981
2e0fef85 982 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
d2873e4c 983
2e0fef85 984 spin_lock_irq(shost->host_lock);
2e0fef85
JS		 985 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
986 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
987 vport->fc_flag |= FC_NDISC_ACTIVE;
988 vport->fc_ns_retry = 0;
989 spin_unlock_irq(shost->host_lock);
dea3101e 990
92d7f7b0
JS		 991 if (vport->fc_flag & FC_LBIT)
992 lpfc_linkup_cleanup_nodes(vport);
dea3101e 993
92d7f7b0
JS		 994}
995
996static int
997lpfc_linkup(struct lpfc_hba *phba)
998{
549e55cd
JS		 999 struct lpfc_vport **vports;
1000 int i;
92d7f7b0
JS		 1001
1002 phba->link_state = LPFC_LINK_UP;
1003
1004 /* Unblock fabric iocbs if they are blocked */
1005 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
1006 del_timer_sync(&phba->fabric_block_timer);
1007
549e55cd
JS		 1008 vports = lpfc_create_vport_work_array(phba);
1009 if (vports != NULL)
6fb120a7 1010 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
549e55cd 1011 lpfc_linkup_port(vports[i]);
09372820 1012 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 1013
1014 return 0;
1015}
1016
1017/*
1018 * This routine handles processing a CLEAR_LA mailbox
1019 * command upon completion. It is setup in the LPFC_MBOXQ
1020 * as the completion routine when the command is
1021 * handed off to the SLI layer.
1022 */
a6ababd2 1023static void
2e0fef85 1024lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1025{
2e0fef85
JS		 1026 struct lpfc_vport *vport = pmb->vport;
1027 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1028 struct lpfc_sli *psli = &phba->sli;
04c68496 1029 MAILBOX_t *mb = &pmb->u.mb;
dea3101e 1030 uint32_t control;
1031
dea3101e 1032 /* Since we don't do discovery right now, turn these off here */
a4bc3379 1033 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 1034 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1035 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1036
1037 /* Check for error */
1038 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
92d7f7b0 1039 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 1040 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1041 "0320 CLEAR_LA mbxStatus error x%x hba "
1042 "state x%x\n",
1043 mb->mbxStatus, vport->port_state);
2e0fef85 1044 phba->link_state = LPFC_HBA_ERROR;
dea3101e 1045 goto out;
1046 }
1047
92d7f7b0
JS		 1048 if (vport->port_type == LPFC_PHYSICAL_PORT)
1049 phba->link_state = LPFC_HBA_READY;
1050
1051 spin_lock_irq(&phba->hbalock);
1052 psli->sli_flag |= LPFC_PROCESS_LA;
1053 control = readl(phba->HCregaddr);
1054 control |= HC_LAINT_ENA;
1055 writel(control, phba->HCregaddr);
1056 readl(phba->HCregaddr); /* flush */
1057 spin_unlock_irq(&phba->hbalock);
1b32f6aa 1058 mempool_free(pmb, phba->mbox_mem_pool);
92d7f7b0 1059 return;
dea3101e 1060
dea3101e 1061out:
1062 /* Device Discovery completes */
e8b62011
JS		 1063 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1064 "0225 Device Discovery completes\n");
2e0fef85 1065 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1066
2e0fef85 1067 spin_lock_irq(shost->host_lock);
58da1ffb 1068 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
2e0fef85 1069 spin_unlock_irq(shost->host_lock);
dea3101e 1070
2e0fef85 1071 lpfc_can_disctmo(vport);
dea3101e 1072
1073 /* turn on Link Attention interrupts */
2e0fef85
JS		 1074
1075 spin_lock_irq(&phba->hbalock);
dea3101e 1076 psli->sli_flag |= LPFC_PROCESS_LA;
1077 control = readl(phba->HCregaddr);
1078 control |= HC_LAINT_ENA;
1079 writel(control, phba->HCregaddr);
1080 readl(phba->HCregaddr); /* flush */
2e0fef85 1081 spin_unlock_irq(&phba->hbalock);
dea3101e 1082
1083 return;
1084}
1085
2e0fef85 1086
dea3101e 1087static void
25594c6b 1088lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1089{
2e0fef85 1090 struct lpfc_vport *vport = pmb->vport;
dea3101e 1091
04c68496 1092 if (pmb->u.mb.mbxStatus)
dea3101e 1093 goto out;
dea3101e 1094
25594c6b
JW		 1095 mempool_free(pmb, phba->mbox_mem_pool);
1096
1b51197d
JS		 1097 /* don't perform discovery for SLI4 loopback diagnostic test */
1098 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1099 !(phba->hba_flag & HBA_FCOE_MODE) &&
1100 (phba->link_flag & LS_LOOPBACK_MODE))
1101 return;
1102
76a95d75 1103 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
2e0fef85
JS		 1104 vport->fc_flag & FC_PUBLIC_LOOP &&
1105 !(vport->fc_flag & FC_LBIT)) {
25594c6b 1106 /* Need to wait for FAN - use discovery timer
2e0fef85 1107 * for timeout. port_state is identically
25594c6b
JW		 1108 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1109 */
2e0fef85 1110 lpfc_set_disctmo(vport);
25594c6b 1111 return;
92d7f7b0 1112 }
dea3101e 1113
2e0fef85 1114 /* Start discovery by sending a FLOGI. port_state is identically
25594c6b
JW		 1115 * LPFC_FLOGI while waiting for FLOGI cmpl
1116 */
e6446439 1117 if (vport->port_state != LPFC_FLOGI || vport->fc_flag & FC_PT2PT_PLOGI)
92d7f7b0 1118 lpfc_initial_flogi(vport);
25594c6b 1119 return;
dea3101e 1120
1121out:
e8b62011
JS		 1122 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1123 "0306 CONFIG_LINK mbxStatus error x%x "
1124 "HBA state x%x\n",
04c68496 1125 pmb->u.mb.mbxStatus, vport->port_state);
92d7f7b0 1126 mempool_free(pmb, phba->mbox_mem_pool);
25594c6b 1127
92d7f7b0 1128 lpfc_linkdown(phba);
25594c6b 1129
e8b62011
JS		 1130 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1131 "0200 CONFIG_LINK bad hba state x%x\n",
1132 vport->port_state);
dea3101e 1133
92d7f7b0 1134 lpfc_issue_clear_la(phba, vport);
dea3101e 1135 return;
1136}
1137
7d791df7
JS		 1138/**
1139 * lpfc_sli4_clear_fcf_rr_bmask
1140 * @phba pointer to the struct lpfc_hba for this port.
1141 * This fucnction resets the round robin bit mask and clears the
1142 * fcf priority list. The list deletions are done while holding the
1143 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1144 * from the lpfc_fcf_pri record.
1145 **/
1146void
1147lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
1148{
1149 struct lpfc_fcf_pri *fcf_pri;
1150 struct lpfc_fcf_pri *next_fcf_pri;
1151 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
1152 spin_lock_irq(&phba->hbalock);
1153 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
1154 &phba->fcf.fcf_pri_list, list) {
1155 list_del_init(&fcf_pri->list);
1156 fcf_pri->fcf_rec.flag = 0;
1157 }
1158 spin_unlock_irq(&phba->hbalock);
1159}
6fb120a7
JS		 1160static void
1161lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1162{
1163 struct lpfc_vport *vport = mboxq->vport;
6fb120a7
JS		 1164
1165 if (mboxq->u.mb.mbxStatus) {
1166 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1167 "2017 REG_FCFI mbxStatus error x%x "
1168 "HBA state x%x\n",
1169 mboxq->u.mb.mbxStatus, vport->port_state);
a93ff37a 1170 goto fail_out;
6fb120a7
JS		 1171 }
1172
1173 /* Start FCoE discovery by sending a FLOGI. */
1174 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1175 /* Set the FCFI registered flag */
d439d286 1176 spin_lock_irq(&phba->hbalock);
6fb120a7 1177 phba->fcf.fcf_flag |= FCF_REGISTERED;
d439d286 1178 spin_unlock_irq(&phba->hbalock);
a93ff37a 1179
32b9793f 1180 /* If there is a pending FCoE event, restart FCF table scan. */
7d791df7
JS		 1181 if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
1182 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
a93ff37a
JS		 1183 goto fail_out;
1184
1185 /* Mark successful completion of FCF table scan */
d439d286 1186 spin_lock_irq(&phba->hbalock);
ecfd03c6 1187 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
a93ff37a
JS		 1188 phba->hba_flag &= ~FCF_TS_INPROG;
1189 if (vport->port_state != LPFC_FLOGI) {
1190 phba->hba_flag |= FCF_RR_INPROG;
1191 spin_unlock_irq(&phba->hbalock);
76a95d75 1192 lpfc_issue_init_vfi(vport);
a93ff37a
JS		 1193 goto out;
1194 }
1195 spin_unlock_irq(&phba->hbalock);
1196 goto out;
6fb120a7 1197
a93ff37a
JS		 1198fail_out:
1199 spin_lock_irq(&phba->hbalock);
1200 phba->hba_flag &= ~FCF_RR_INPROG;
1201 spin_unlock_irq(&phba->hbalock);
1202out:
6fb120a7 1203 mempool_free(mboxq, phba->mbox_mem_pool);
6fb120a7
JS		 1204}
1205
1206/**
1207 * lpfc_fab_name_match - Check if the fcf fabric name match.
1208 * @fab_name: pointer to fabric name.
1209 * @new_fcf_record: pointer to fcf record.
1210 *
1211 * This routine compare the fcf record's fabric name with provided
1212 * fabric name. If the fabric name are identical this function
1213 * returns 1 else return 0.
1214 **/
1215static uint32_t
1216lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1217{
ecfd03c6
JS		 1218 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1219 return 0;
1220 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1221 return 0;
1222 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1223 return 0;
1224 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1225 return 0;
1226 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1227 return 0;
1228 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
6fb120a7 1229 return 0;
ecfd03c6
JS		 1230 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1231 return 0;
1232 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1233 return 0;
1234 return 1;
6fb120a7
JS		 1235}
1236
8fa38513
JS		 1237/**
1238 * lpfc_sw_name_match - Check if the fcf switch name match.
1239 * @fab_name: pointer to fabric name.
1240 * @new_fcf_record: pointer to fcf record.
1241 *
1242 * This routine compare the fcf record's switch name with provided
1243 * switch name. If the switch name are identical this function
1244 * returns 1 else return 0.
1245 **/
1246static uint32_t
1247lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1248{
ecfd03c6
JS		 1249 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1250 return 0;
1251 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1252 return 0;
1253 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
8fa38513 1254 return 0;
ecfd03c6
JS		 1255 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1256 return 0;
1257 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1258 return 0;
1259 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1260 return 0;
1261 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1262 return 0;
1263 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1264 return 0;
1265 return 1;
8fa38513
JS		 1266}
1267
6fb120a7
JS		 1268/**
1269 * lpfc_mac_addr_match - Check if the fcf mac address match.
ecfd03c6 1270 * @mac_addr: pointer to mac address.
6fb120a7
JS		 1271 * @new_fcf_record: pointer to fcf record.
1272 *
1273 * This routine compare the fcf record's mac address with HBA's
1274 * FCF mac address. If the mac addresses are identical this function
1275 * returns 1 else return 0.
1276 **/
1277static uint32_t
ecfd03c6 1278lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
6fb120a7 1279{
ecfd03c6
JS		 1280 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1281 return 0;
1282 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1283 return 0;
1284 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1285 return 0;
1286 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1287 return 0;
1288 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1289 return 0;
1290 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
6fb120a7 1291 return 0;
ecfd03c6
JS		 1292 return 1;
1293}
1294
1295static bool
1296lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1297{
1298 return (curr_vlan_id == new_vlan_id);
6fb120a7
JS		 1299}
1300
7d791df7
JS		 1301/**
1302 * lpfc_update_fcf_record - Update driver fcf record
1303 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1304 * @phba: pointer to lpfc hba data structure.
1305 * @fcf_index: Index for the lpfc_fcf_record.
1306 * @new_fcf_record: pointer to hba fcf record.
1307 *
1308 * This routine updates the driver FCF priority record from the new HBA FCF
1309 * record. This routine is called with the host lock held.
1310 **/
1311static void
1312__lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
1313 struct fcf_record *new_fcf_record
1314 )
1315{
1316 struct lpfc_fcf_pri *fcf_pri;
1317
1318 fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1319 fcf_pri->fcf_rec.fcf_index = fcf_index;
1320 /* FCF record priority */
1321 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
1322
1323}
1324
6fb120a7
JS		 1325/**
1326 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
ecfd03c6 1327 * @fcf: pointer to driver fcf record.
6fb120a7
JS		 1328 * @new_fcf_record: pointer to fcf record.
1329 *
1330 * This routine copies the FCF information from the FCF
1331 * record to lpfc_hba data structure.
1332 **/
1333static void
ecfd03c6
JS		 1334lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1335 struct fcf_record *new_fcf_record)
6fb120a7 1336{
ecfd03c6
JS		 1337 /* Fabric name */
1338 fcf_rec->fabric_name[0] =
6fb120a7 1339 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
ecfd03c6 1340 fcf_rec->fabric_name[1] =
6fb120a7 1341 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
ecfd03c6 1342 fcf_rec->fabric_name[2] =
6fb120a7 1343 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
ecfd03c6 1344 fcf_rec->fabric_name[3] =
6fb120a7 1345 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
ecfd03c6 1346 fcf_rec->fabric_name[4] =
6fb120a7 1347 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
ecfd03c6 1348 fcf_rec->fabric_name[5] =
6fb120a7 1349 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
ecfd03c6 1350 fcf_rec->fabric_name[6] =
6fb120a7 1351 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
ecfd03c6 1352 fcf_rec->fabric_name[7] =
6fb120a7 1353 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
ecfd03c6
JS		 1354 /* Mac address */
1355 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1356 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1357 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1358 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1359 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1360 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1361 /* FCF record index */
1362 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1363 /* FCF record priority */
1364 fcf_rec->priority = new_fcf_record->fip_priority;
1365 /* Switch name */
1366 fcf_rec->switch_name[0] =
8fa38513 1367 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
ecfd03c6 1368 fcf_rec->switch_name[1] =
8fa38513 1369 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
ecfd03c6 1370 fcf_rec->switch_name[2] =
8fa38513 1371 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
ecfd03c6 1372 fcf_rec->switch_name[3] =
8fa38513 1373 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
ecfd03c6 1374 fcf_rec->switch_name[4] =
8fa38513 1375 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
ecfd03c6 1376 fcf_rec->switch_name[5] =
8fa38513 1377 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
ecfd03c6 1378 fcf_rec->switch_name[6] =
8fa38513 1379 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
ecfd03c6 1380 fcf_rec->switch_name[7] =
8fa38513 1381 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
6fb120a7
JS		 1382}
1383
ecfd03c6
JS		 1384/**
1385 * lpfc_update_fcf_record - Update driver fcf record
1386 * @phba: pointer to lpfc hba data structure.
1387 * @fcf_rec: pointer to driver fcf record.
1388 * @new_fcf_record: pointer to hba fcf record.
1389 * @addr_mode: address mode to be set to the driver fcf record.
1390 * @vlan_id: vlan tag to be set to the driver fcf record.
1391 * @flag: flag bits to be set to the driver fcf record.
1392 *
1393 * This routine updates the driver FCF record from the new HBA FCF record
1394 * together with the address mode, vlan_id, and other informations. This
1395 * routine is called with the host lock held.
1396 **/
1397static void
1398__lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1399 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1400 uint16_t vlan_id, uint32_t flag)
1401{
1402 /* Copy the fields from the HBA's FCF record */
1403 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1404 /* Update other fields of driver FCF record */
1405 fcf_rec->addr_mode = addr_mode;
1406 fcf_rec->vlan_id = vlan_id;
1407 fcf_rec->flag |= (flag | RECORD_VALID);
7d791df7
JS		 1408 __lpfc_update_fcf_record_pri(phba,
1409 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
1410 new_fcf_record);
ecfd03c6
JS		 1411}
1412
6fb120a7
JS		 1413/**
1414 * lpfc_register_fcf - Register the FCF with hba.
1415 * @phba: pointer to lpfc hba data structure.
1416 *
1417 * This routine issues a register fcfi mailbox command to register
1418 * the fcf with HBA.
1419 **/
1420static void
1421lpfc_register_fcf(struct lpfc_hba *phba)
1422{
1423 LPFC_MBOXQ_t *fcf_mbxq;
1424 int rc;
6fb120a7 1425
d439d286 1426 spin_lock_irq(&phba->hbalock);
25985edc 1427 /* If the FCF is not available do nothing. */
6fb120a7 1428 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
a93ff37a 1429 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
d439d286 1430 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 1431 return;
1432 }
1433
1434 /* The FCF is already registered, start discovery */
1435 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
ecfd03c6 1436 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
a93ff37a 1437 phba->hba_flag &= ~FCF_TS_INPROG;
e74c03c8
JS		 1438 if (phba->pport->port_state != LPFC_FLOGI &&
1439 phba->pport->fc_flag & FC_FABRIC) {
a93ff37a
JS		 1440 phba->hba_flag |= FCF_RR_INPROG;
1441 spin_unlock_irq(&phba->hbalock);
bf08611b 1442 lpfc_initial_flogi(phba->pport);
a93ff37a
JS		 1443 return;
1444 }
1445 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 1446 return;
1447 }
d439d286 1448 spin_unlock_irq(&phba->hbalock);
6fb120a7 1449
a93ff37a 1450 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4d9ab994 1451 if (!fcf_mbxq) {
d439d286 1452 spin_lock_irq(&phba->hbalock);
a93ff37a 1453 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
d439d286 1454 spin_unlock_irq(&phba->hbalock);
6fb120a7 1455 return;
4d9ab994 1456 }
6fb120a7
JS		 1457
1458 lpfc_reg_fcfi(phba, fcf_mbxq);
1459 fcf_mbxq->vport = phba->pport;
1460 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1461 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
4d9ab994 1462 if (rc == MBX_NOT_FINISHED) {
d439d286 1463 spin_lock_irq(&phba->hbalock);
a93ff37a 1464 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
d439d286 1465 spin_unlock_irq(&phba->hbalock);
6fb120a7 1466 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
4d9ab994 1467 }
6fb120a7
JS		 1468
1469 return;
1470}
1471
1472/**
1473 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1474 * @phba: pointer to lpfc hba data structure.
1475 * @new_fcf_record: pointer to fcf record.
1476 * @boot_flag: Indicates if this record used by boot bios.
1477 * @addr_mode: The address mode to be used by this FCF
ecfd03c6 1478 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
6fb120a7
JS		 1479 *
1480 * This routine compare the fcf record with connect list obtained from the
1481 * config region to decide if this FCF can be used for SAN discovery. It returns
1482 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1483 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1484 * is used by boot bios and addr_mode will indicate the addressing mode to be
1485 * used for this FCF when the function returns.
1486 * If the FCF record need to be used with a particular vlan id, the vlan is
1487 * set in the vlan_id on return of the function. If not VLAN tagging need to
dbb6b3ab 1488 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
6fb120a7
JS		 1489 **/
1490static int
1491lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1492 struct fcf_record *new_fcf_record,
1493 uint32_t *boot_flag, uint32_t *addr_mode,
1494 uint16_t *vlan_id)
1495{
1496 struct lpfc_fcf_conn_entry *conn_entry;
4d9ab994
JS		 1497 int i, j, fcf_vlan_id = 0;
1498
1499 /* Find the lowest VLAN id in the FCF record */
1500 for (i = 0; i < 512; i++) {
1501 if (new_fcf_record->vlan_bitmap[i]) {
1502 fcf_vlan_id = i * 8;
1503 j = 0;
1504 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1505 j++;
1506 fcf_vlan_id++;
1507 }
1508 break;
1509 }
1510 }
6fb120a7 1511
26979ced 1512 /* FCF not valid/available or solicitation in progress */
0c287589 1513 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
26979ced
JS		 1514 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||
1515 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))
0c287589
JS		 1516 return 0;
1517
45ed1190 1518 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
6fb120a7
JS		 1519 *boot_flag = 0;
1520 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1521 new_fcf_record);
1522 if (phba->valid_vlan)
1523 *vlan_id = phba->vlan_id;
1524 else
dbb6b3ab 1525 *vlan_id = LPFC_FCOE_NULL_VID;
6fb120a7
JS		 1526 return 1;
1527 }
1528
1529 /*
1530 * If there are no FCF connection table entry, driver connect to all
1531 * FCFs.
1532 */
1533 if (list_empty(&phba->fcf_conn_rec_list)) {
1534 *boot_flag = 0;
1535 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1536 new_fcf_record);
0c287589
JS		 1537
1538 /*
1539 * When there are no FCF connect entries, use driver's default
1540 * addressing mode - FPMA.
1541 */
1542 if (*addr_mode & LPFC_FCF_FPMA)
1543 *addr_mode = LPFC_FCF_FPMA;
1544
4d9ab994
JS		 1545 /* If FCF record report a vlan id use that vlan id */
1546 if (fcf_vlan_id)
1547 *vlan_id = fcf_vlan_id;
1548 else
dbb6b3ab 1549 *vlan_id = LPFC_FCOE_NULL_VID;
6fb120a7
JS		 1550 return 1;
1551 }
1552
ecfd03c6
JS		 1553 list_for_each_entry(conn_entry,
1554 &phba->fcf_conn_rec_list, list) {
6fb120a7
JS		 1555 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1556 continue;
1557
1558 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1559 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
8fa38513
JS		 1560 new_fcf_record))
1561 continue;
1562 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1563 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1564 new_fcf_record))
6fb120a7 1565 continue;
6fb120a7
JS		 1566 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1567 /*
1568 * If the vlan bit map does not have the bit set for the
1569 * vlan id to be used, then it is not a match.
1570 */
1571 if (!(new_fcf_record->vlan_bitmap
1572 [conn_entry->conn_rec.vlan_tag / 8] &
1573 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1574 continue;
1575 }
1576
0c287589
JS		 1577 /*
1578 * If connection record does not support any addressing mode,
1579 * skip the FCF record.
1580 */
1581 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1582 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1583 continue;
1584
6fb120a7
JS		 1585 /*
1586 * Check if the connection record specifies a required
1587 * addressing mode.
1588 */
1589 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1590 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1591
1592 /*
1593 * If SPMA required but FCF not support this continue.
1594 */
1595 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1596 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1597 new_fcf_record) & LPFC_FCF_SPMA))
1598 continue;
1599
1600 /*
1601 * If FPMA required but FCF not support this continue.
1602 */
1603 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1604 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1605 new_fcf_record) & LPFC_FCF_FPMA))
1606 continue;
1607 }
1608
1609 /*
1610 * This fcf record matches filtering criteria.
1611 */
1612 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1613 *boot_flag = 1;
1614 else
1615 *boot_flag = 0;
1616
0c287589
JS		 1617 /*
1618 * If user did not specify any addressing mode, or if the
25985edc 1619 * preferred addressing mode specified by user is not supported
0c287589
JS		 1620 * by FCF, allow fabric to pick the addressing mode.
1621 */
6fb120a7
JS		 1622 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1623 new_fcf_record);
1624 /*
1625 * If the user specified a required address mode, assign that
1626 * address mode
1627 */
1628 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1629 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1630 *addr_mode = (conn_entry->conn_rec.flags &
1631 FCFCNCT_AM_SPMA) ?
1632 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1633 /*
25985edc 1634 * If the user specified a preferred address mode, use the
6fb120a7
JS		 1635 * addr mode only if FCF support the addr_mode.
1636 */
1637 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1638 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1639 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1640 (*addr_mode & LPFC_FCF_SPMA))
1641 *addr_mode = LPFC_FCF_SPMA;
1642 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1643 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1644 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1645 (*addr_mode & LPFC_FCF_FPMA))
1646 *addr_mode = LPFC_FCF_FPMA;
6fb120a7 1647
4d9ab994 1648 /* If matching connect list has a vlan id, use it */
6fb120a7
JS		 1649 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1650 *vlan_id = conn_entry->conn_rec.vlan_tag;
4d9ab994
JS		 1651 /*
1652 * If no vlan id is specified in connect list, use the vlan id
1653 * in the FCF record
1654 */
1655 else if (fcf_vlan_id)
1656 *vlan_id = fcf_vlan_id;
6fb120a7 1657 else
dbb6b3ab 1658 *vlan_id = LPFC_FCOE_NULL_VID;
6fb120a7
JS		 1659
1660 return 1;
1661 }
1662
1663 return 0;
1664}
1665
32b9793f
JS		 1666/**
1667 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1668 * @phba: pointer to lpfc hba data structure.
1669 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1670 *
1671 * This function check if there is any fcoe event pending while driver
1672 * scan FCF entries. If there is any pending event, it will restart the
1673 * FCF saning and return 1 else return 0.
1674 */
1675int
1676lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1677{
32b9793f
JS		 1678 /*
1679 * If the Link is up and no FCoE events while in the
1680 * FCF discovery, no need to restart FCF discovery.
1681 */
1682 if ((phba->link_state >= LPFC_LINK_UP) &&
a93ff37a 1683 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
32b9793f
JS		 1684 return 0;
1685
0c9ab6f5
JS		 1686 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1687 "2768 Pending link or FCF event during current "
1688 "handling of the previous event: link_state:x%x, "
1689 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1690 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
1691 phba->fcoe_eventtag);
1692
32b9793f
JS		 1693 spin_lock_irq(&phba->hbalock);
1694 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1695 spin_unlock_irq(&phba->hbalock);
1696
0c9ab6f5
JS		 1697 if (phba->link_state >= LPFC_LINK_UP) {
1698 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1699 "2780 Restart FCF table scan due to "
1700 "pending FCF event:evt_tag_at_scan:x%x, "
1701 "evt_tag_current:x%x\n",
1702 phba->fcoe_eventtag_at_fcf_scan,
1703 phba->fcoe_eventtag);
1704 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
1705 } else {
4d9ab994 1706 /*
a93ff37a 1707 * Do not continue FCF discovery and clear FCF_TS_INPROG
4d9ab994
JS		 1708 * flag
1709 */
dbb6b3ab
JS		 1710 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1711 "2833 Stop FCF discovery process due to link "
1712 "state change (x%x)\n", phba->link_state);
1c6f4ef5 1713 spin_lock_irq(&phba->hbalock);
a93ff37a 1714 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
0c9ab6f5 1715 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
1c6f4ef5
JS		 1716 spin_unlock_irq(&phba->hbalock);
1717 }
32b9793f 1718
0c9ab6f5 1719 /* Unregister the currently registered FCF if required */
32b9793f
JS		 1720 if (unreg_fcf) {
1721 spin_lock_irq(&phba->hbalock);
1722 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1723 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 1724 lpfc_sli4_unregister_fcf(phba);
32b9793f 1725 }
32b9793f
JS		 1726 return 1;
1727}
1728
6fb120a7 1729/**
999d813f
JS		 1730 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1731 * @phba: pointer to lpfc hba data structure.
1732 * @fcf_cnt: number of eligible fcf record seen so far.
1733 *
1734 * This function makes an running random selection decision on FCF record to
1735 * use through a sequence of @fcf_cnt eligible FCF records with equal
1736 * probability. To perform integer manunipulation of random numbers with
1737 * size unit32_t, the lower 16 bits of the 32-bit random number returned
3b60a64f 1738 * from prandom_u32() are taken as the random random number generated.
999d813f
JS		 1739 *
1740 * Returns true when outcome is for the newly read FCF record should be
1741 * chosen; otherwise, return false when outcome is for keeping the previously
1742 * chosen FCF record.
1743 **/
1744static bool
1745lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
1746{
1747 uint32_t rand_num;
1748
1749 /* Get 16-bit uniform random number */
3b60a64f 1750 rand_num = 0xFFFF & prandom_u32();
999d813f
JS		 1751
1752 /* Decision with probability 1/fcf_cnt */
1753 if ((fcf_cnt * rand_num) < 0xFFFF)
1754 return true;
1755 else
1756 return false;
1757}
1758
1759/**
3804dc84 1760 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
6fb120a7
JS		 1761 * @phba: pointer to lpfc hba data structure.
1762 * @mboxq: pointer to mailbox object.
0c9ab6f5 1763 * @next_fcf_index: pointer to holder of next fcf index.
6fb120a7 1764 *
0c9ab6f5
JS		 1765 * This routine parses the non-embedded fcf mailbox command by performing the
1766 * necessarily error checking, non-embedded read FCF record mailbox command
1767 * SGE parsing, and endianness swapping.
1768 *
1769 * Returns the pointer to the new FCF record in the non-embedded mailbox
1770 * command DMA memory if successfully, other NULL.
6fb120a7 1771 */
0c9ab6f5
JS		 1772static struct fcf_record *
1773lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
1774 uint16_t *next_fcf_index)
6fb120a7
JS		 1775{
1776 void *virt_addr;
1777 dma_addr_t phys_addr;
6fb120a7
JS		 1778 struct lpfc_mbx_sge sge;
1779 struct lpfc_mbx_read_fcf_tbl *read_fcf;
f818ea7a 1780 uint32_t shdr_status, shdr_add_status, if_type;
6fb120a7
JS		 1781 union lpfc_sli4_cfg_shdr *shdr;
1782 struct fcf_record *new_fcf_record;
32b9793f 1783
6fb120a7
JS		 1784 /* Get the first SGE entry from the non-embedded DMA memory. This
1785 * routine only uses a single SGE.
1786 */
1787 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1788 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
1789 if (unlikely(!mboxq->sge_array)) {
1790 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1791 "2524 Failed to get the non-embedded SGE "
1792 "virtual address\n");
0c9ab6f5 1793 return NULL;
6fb120a7
JS		 1794 }
1795 virt_addr = mboxq->sge_array->addr[0];
1796
1797 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
2562669c
JS		 1798 lpfc_sli_pcimem_bcopy(shdr, shdr,
1799 sizeof(union lpfc_sli4_cfg_shdr));
6fb120a7 1800 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
f818ea7a 1801 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
0c9ab6f5 1802 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6fb120a7 1803 if (shdr_status || shdr_add_status) {
f818ea7a
JS		 1804 if (shdr_status == STATUS_FCF_TABLE_EMPTY ||
1805 if_type == LPFC_SLI_INTF_IF_TYPE_2)
0c9ab6f5 1806 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
def9c7a9
JS		 1807 "2726 READ_FCF_RECORD Indicates empty "
1808 "FCF table.\n");
0c9ab6f5
JS		 1809 else
1810 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
def9c7a9 1811 "2521 READ_FCF_RECORD mailbox failed "
0c9ab6f5
JS		 1812 "with status x%x add_status x%x, "
1813 "mbx\n", shdr_status, shdr_add_status);
1814 return NULL;
6fb120a7 1815 }
0c9ab6f5
JS		 1816
1817 /* Interpreting the returned information of the FCF record */
6fb120a7
JS		 1818 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1819 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1820 sizeof(struct lpfc_mbx_read_fcf_tbl));
0c9ab6f5 1821 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
6fb120a7
JS		 1822 new_fcf_record = (struct fcf_record *)(virt_addr +
1823 sizeof(struct lpfc_mbx_read_fcf_tbl));
1824 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
cb5172ea
JS		 1825 offsetof(struct fcf_record, vlan_bitmap));
1826 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
1827 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
6fb120a7 1828
0c9ab6f5
JS		 1829 return new_fcf_record;
1830}
1831
1832/**
1833 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1834 * @phba: pointer to lpfc hba data structure.
1835 * @fcf_record: pointer to the fcf record.
1836 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1837 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1838 *
1839 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1840 * enabled.
1841 **/
1842static void
1843lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
1844 struct fcf_record *fcf_record,
1845 uint16_t vlan_id,
1846 uint16_t next_fcf_index)
1847{
1848 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1849 "2764 READ_FCF_RECORD:\n"
1850 "\tFCF_Index : x%x\n"
1851 "\tFCF_Avail : x%x\n"
1852 "\tFCF_Valid : x%x\n"
26979ced 1853 "\tFCF_SOL : x%x\n"
0c9ab6f5
JS		 1854 "\tFIP_Priority : x%x\n"
1855 "\tMAC_Provider : x%x\n"
1856 "\tLowest VLANID : x%x\n"
1857 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1858 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1859 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1860 "\tNext_FCF_Index: x%x\n",
1861 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
1862 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
1863 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
26979ced 1864 bf_get(lpfc_fcf_record_fcf_sol, fcf_record),
0c9ab6f5
JS		 1865 fcf_record->fip_priority,
1866 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
1867 vlan_id,
1868 bf_get(lpfc_fcf_record_mac_0, fcf_record),
1869 bf_get(lpfc_fcf_record_mac_1, fcf_record),
1870 bf_get(lpfc_fcf_record_mac_2, fcf_record),
1871 bf_get(lpfc_fcf_record_mac_3, fcf_record),
1872 bf_get(lpfc_fcf_record_mac_4, fcf_record),
1873 bf_get(lpfc_fcf_record_mac_5, fcf_record),
1874 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
1875 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
1876 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
1877 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
1878 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
1879 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
1880 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
1881 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
1882 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
1883 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
1884 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
1885 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
1886 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
1887 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
1888 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
1889 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
1890 next_fcf_index);
1891}
1892
dbb6b3ab
JS		 1893/**
1894 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1895 * @phba: pointer to lpfc hba data structure.
1896 * @fcf_rec: pointer to an existing FCF record.
1897 * @new_fcf_record: pointer to a new FCF record.
1898 * @new_vlan_id: vlan id from the new FCF record.
1899 *
1900 * This function performs matching test of a new FCF record against an existing
1901 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1902 * will not be used as part of the FCF record matching criteria.
1903 *
1904 * Returns true if all the fields matching, otherwise returns false.
1905 */
1906static bool
1907lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
1908 struct lpfc_fcf_rec *fcf_rec,
1909 struct fcf_record *new_fcf_record,
1910 uint16_t new_vlan_id)
1911{
1912 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
1913 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
1914 return false;
1915 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
1916 return false;
1917 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
1918 return false;
1919 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
1920 return false;
7d791df7
JS		 1921 if (fcf_rec->priority != new_fcf_record->fip_priority)
1922 return false;
dbb6b3ab
JS		 1923 return true;
1924}
1925
a93ff37a
JS		 1926/**
1927 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1928 * @vport: Pointer to vport object.
1929 * @fcf_index: index to next fcf.
1930 *
1931 * This function processing the roundrobin fcf failover to next fcf index.
1932 * When this function is invoked, there will be a current fcf registered
1933 * for flogi.
1934 * Return: 0 for continue retrying flogi on currently registered fcf;
1935 * 1 for stop flogi on currently registered fcf;
1936 */
1937int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
1938{
1939 struct lpfc_hba *phba = vport->phba;
1940 int rc;
1941
1942 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
1943 spin_lock_irq(&phba->hbalock);
1944 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
1945 spin_unlock_irq(&phba->hbalock);
1946 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1947 "2872 Devloss tmo with no eligible "
1948 "FCF, unregister in-use FCF (x%x) "
1949 "and rescan FCF table\n",
1950 phba->fcf.current_rec.fcf_indx);
1951 lpfc_unregister_fcf_rescan(phba);
1952 goto stop_flogi_current_fcf;
1953 }
1954 /* Mark the end to FLOGI roundrobin failover */
1955 phba->hba_flag &= ~FCF_RR_INPROG;
1956 /* Allow action to new fcf asynchronous event */
1957 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
1958 spin_unlock_irq(&phba->hbalock);
1959 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1960 "2865 No FCF available, stop roundrobin FCF "
1961 "failover and change port state:x%x/x%x\n",
1962 phba->pport->port_state, LPFC_VPORT_UNKNOWN);
1963 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
1964 goto stop_flogi_current_fcf;
1965 } else {
1966 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
1967 "2794 Try FLOGI roundrobin FCF failover to "
1968 "(x%x)\n", fcf_index);
1969 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
1970 if (rc)
1971 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
1972 "2761 FLOGI roundrobin FCF failover "
1973 "failed (rc:x%x) to read FCF (x%x)\n",
1974 rc, phba->fcf.current_rec.fcf_indx);
1975 else
1976 goto stop_flogi_current_fcf;
1977 }
1978 return 0;
1979
1980stop_flogi_current_fcf:
1981 lpfc_can_disctmo(vport);
1982 return 1;
1983}
1984
7d791df7
JS		 1985/**
1986 * lpfc_sli4_fcf_pri_list_del
1987 * @phba: pointer to lpfc hba data structure.
1988 * @fcf_index the index of the fcf record to delete
1989 * This routine checks the on list flag of the fcf_index to be deleted.
1990 * If it is one the list then it is removed from the list, and the flag
1991 * is cleared. This routine grab the hbalock before removing the fcf
1992 * record from the list.
1993 **/
1994static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
1995 uint16_t fcf_index)
1996{
1997 struct lpfc_fcf_pri *new_fcf_pri;
1998
1999 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2000 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2001 "3058 deleting idx x%x pri x%x flg x%x\n",
2002 fcf_index, new_fcf_pri->fcf_rec.priority,
2003 new_fcf_pri->fcf_rec.flag);
2004 spin_lock_irq(&phba->hbalock);
2005 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
2006 if (phba->fcf.current_rec.priority ==
2007 new_fcf_pri->fcf_rec.priority)
2008 phba->fcf.eligible_fcf_cnt--;
2009 list_del_init(&new_fcf_pri->list);
2010 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
2011 }
2012 spin_unlock_irq(&phba->hbalock);
2013}
2014
2015/**
2016 * lpfc_sli4_set_fcf_flogi_fail
2017 * @phba: pointer to lpfc hba data structure.
2018 * @fcf_index the index of the fcf record to update
2019 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2020 * flag so the the round robin slection for the particular priority level
2021 * will try a different fcf record that does not have this bit set.
2022 * If the fcf record is re-read for any reason this flag is cleared brfore
2023 * adding it to the priority list.
2024 **/
2025void
2026lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
2027{
2028 struct lpfc_fcf_pri *new_fcf_pri;
2029 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2030 spin_lock_irq(&phba->hbalock);
2031 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
2032 spin_unlock_irq(&phba->hbalock);
2033}
2034
2035/**
2036 * lpfc_sli4_fcf_pri_list_add
2037 * @phba: pointer to lpfc hba data structure.
2038 * @fcf_index the index of the fcf record to add
2039 * This routine checks the priority of the fcf_index to be added.
2040 * If it is a lower priority than the current head of the fcf_pri list
2041 * then it is added to the list in the right order.
2042 * If it is the same priority as the current head of the list then it
2043 * is added to the head of the list and its bit in the rr_bmask is set.
2044 * If the fcf_index to be added is of a higher priority than the current
2045 * head of the list then the rr_bmask is cleared, its bit is set in the
2046 * rr_bmask and it is added to the head of the list.
2047 * returns:
2048 * 0=success 1=failure
2049 **/
b86a6756
RK		 2050static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba,
2051 uint16_t fcf_index,
7d791df7
JS		 2052 struct fcf_record *new_fcf_record)
2053{
2054 uint16_t current_fcf_pri;
2055 uint16_t last_index;
2056 struct lpfc_fcf_pri *fcf_pri;
2057 struct lpfc_fcf_pri *next_fcf_pri;
2058 struct lpfc_fcf_pri *new_fcf_pri;
2059 int ret;
2060
2061 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2062 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2063 "3059 adding idx x%x pri x%x flg x%x\n",
2064 fcf_index, new_fcf_record->fip_priority,
2065 new_fcf_pri->fcf_rec.flag);
2066 spin_lock_irq(&phba->hbalock);
2067 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
2068 list_del_init(&new_fcf_pri->list);
2069 new_fcf_pri->fcf_rec.fcf_index = fcf_index;
2070 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
2071 if (list_empty(&phba->fcf.fcf_pri_list)) {
2072 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2073 ret = lpfc_sli4_fcf_rr_index_set(phba,
2074 new_fcf_pri->fcf_rec.fcf_index);
2075 goto out;
2076 }
2077
2078 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
2079 LPFC_SLI4_FCF_TBL_INDX_MAX);
2080 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
2081 ret = 0; /* Empty rr list */
2082 goto out;
2083 }
2084 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
2085 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
2086 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2087 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
2088 memset(phba->fcf.fcf_rr_bmask, 0,
2089 sizeof(*phba->fcf.fcf_rr_bmask));
2090 /* fcfs_at_this_priority_level = 1; */
2091 phba->fcf.eligible_fcf_cnt = 1;
2092 } else
2093 /* fcfs_at_this_priority_level++; */
2094 phba->fcf.eligible_fcf_cnt++;
2095 ret = lpfc_sli4_fcf_rr_index_set(phba,
2096 new_fcf_pri->fcf_rec.fcf_index);
2097 goto out;
2098 }
2099
2100 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
2101 &phba->fcf.fcf_pri_list, list) {
2102 if (new_fcf_pri->fcf_rec.priority <=
2103 fcf_pri->fcf_rec.priority) {
2104 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
2105 list_add(&new_fcf_pri->list,
2106 &phba->fcf.fcf_pri_list);
2107 else
2108 list_add(&new_fcf_pri->list,
2109 &((struct lpfc_fcf_pri *)
2110 fcf_pri->list.prev)->list);
2111 ret = 0;
2112 goto out;
2113 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
2114 || new_fcf_pri->fcf_rec.priority <
2115 next_fcf_pri->fcf_rec.priority) {
2116 list_add(&new_fcf_pri->list, &fcf_pri->list);
2117 ret = 0;
2118 goto out;
2119 }
2120 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
2121 continue;
2122
2123 }
2124 ret = 1;
2125out:
2126 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2127 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
2128 spin_unlock_irq(&phba->hbalock);
2129 return ret;
2130}
2131
0c9ab6f5
JS		 2132/**
2133 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2134 * @phba: pointer to lpfc hba data structure.
2135 * @mboxq: pointer to mailbox object.
2136 *
2137 * This function iterates through all the fcf records available in
2138 * HBA and chooses the optimal FCF record for discovery. After finding
2139 * the FCF for discovery it registers the FCF record and kicks start
2140 * discovery.
2141 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2142 * use an FCF record which matches fabric name and mac address of the
2143 * currently used FCF record.
2144 * If the driver supports only one FCF, it will try to use the FCF record
2145 * used by BOOT_BIOS.
2146 */
2147void
2148lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2149{
2150 struct fcf_record *new_fcf_record;
2151 uint32_t boot_flag, addr_mode;
2152 uint16_t fcf_index, next_fcf_index;
2153 struct lpfc_fcf_rec *fcf_rec = NULL;
2154 uint16_t vlan_id;
999d813f 2155 bool select_new_fcf;
0c9ab6f5
JS		 2156 int rc;
2157
2158 /* If there is pending FCoE event restart FCF table scan */
a93ff37a 2159 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
0c9ab6f5
JS		 2160 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2161 return;
2162 }
2163
2164 /* Parse the FCF record from the non-embedded mailbox command */
2165 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2166 &next_fcf_index);
2167 if (!new_fcf_record) {
a93ff37a 2168 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
0c9ab6f5
JS		 2169 "2765 Mailbox command READ_FCF_RECORD "
2170 "failed to retrieve a FCF record.\n");
2171 /* Let next new FCF event trigger fast failover */
2172 spin_lock_irq(&phba->hbalock);
a93ff37a 2173 phba->hba_flag &= ~FCF_TS_INPROG;
0c9ab6f5
JS		 2174 spin_unlock_irq(&phba->hbalock);
2175 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2176 return;
2177 }
2178
2179 /* Check the FCF record against the connection list */
ecfd03c6
JS		 2180 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2181 &addr_mode, &vlan_id);
0c9ab6f5
JS		 2182
2183 /* Log the FCF record information if turned on */
2184 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2185 next_fcf_index);
2186
6fb120a7
JS		 2187 /*
2188 * If the fcf record does not match with connect list entries
0c9ab6f5 2189 * read the next entry; otherwise, this is an eligible FCF
a93ff37a 2190 * record for roundrobin FCF failover.
6fb120a7 2191 */
0c9ab6f5 2192 if (!rc) {
7d791df7
JS		 2193 lpfc_sli4_fcf_pri_list_del(phba,
2194 bf_get(lpfc_fcf_record_fcf_index,
2195 new_fcf_record));
0c9ab6f5 2196 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
a93ff37a 2197 "2781 FCF (x%x) failed connection "
26979ced 2198 "list check: (x%x/x%x/%x)\n",
0c9ab6f5
JS		 2199 bf_get(lpfc_fcf_record_fcf_index,
2200 new_fcf_record),
2201 bf_get(lpfc_fcf_record_fcf_avail,
2202 new_fcf_record),
2203 bf_get(lpfc_fcf_record_fcf_valid,
26979ced
JS		 2204 new_fcf_record),
2205 bf_get(lpfc_fcf_record_fcf_sol,
0c9ab6f5 2206 new_fcf_record));
dbb6b3ab
JS		 2207 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
2208 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2209 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
5ac6b303
JS		 2210 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
2211 phba->fcf.current_rec.fcf_indx) {
2212 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2213 "2862 FCF (x%x) matches property "
2214 "of in-use FCF (x%x)\n",
2215 bf_get(lpfc_fcf_record_fcf_index,
2216 new_fcf_record),
2217 phba->fcf.current_rec.fcf_indx);
2218 goto read_next_fcf;
2219 }
dbb6b3ab
JS		 2220 /*
2221 * In case the current in-use FCF record becomes
2222 * invalid/unavailable during FCF discovery that
2223 * was not triggered by fast FCF failover process,
2224 * treat it as fast FCF failover.
2225 */
2226 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
2227 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2228 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2229 "2835 Invalid in-use FCF "
a93ff37a
JS		 2230 "(x%x), enter FCF failover "
2231 "table scan.\n",
dbb6b3ab
JS		 2232 phba->fcf.current_rec.fcf_indx);
2233 spin_lock_irq(&phba->hbalock);
2234 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2235 spin_unlock_irq(&phba->hbalock);
2236 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2237 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2238 LPFC_FCOE_FCF_GET_FIRST);
2239 return;
2240 }
2241 }
6fb120a7 2242 goto read_next_fcf;
0c9ab6f5
JS		 2243 } else {
2244 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
7d791df7
JS		 2245 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
2246 new_fcf_record);
0c9ab6f5
JS		 2247 if (rc)
2248 goto read_next_fcf;
2249 }
2250
6fb120a7
JS		 2251 /*
2252 * If this is not the first FCF discovery of the HBA, use last
ecfd03c6
JS		 2253 * FCF record for the discovery. The condition that a rescan
2254 * matches the in-use FCF record: fabric name, switch name, mac
2255 * address, and vlan_id.
6fb120a7 2256 */
0c9ab6f5 2257 spin_lock_irq(&phba->hbalock);
6fb120a7 2258 if (phba->fcf.fcf_flag & FCF_IN_USE) {
7d791df7
JS		 2259 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2260 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
dbb6b3ab 2261 new_fcf_record, vlan_id)) {
5ac6b303
JS		 2262 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
2263 phba->fcf.current_rec.fcf_indx) {
2264 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2265 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
2266 /* Stop FCF redisc wait timer */
2267 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2268 phba);
2269 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2270 /* Fast failover, mark completed */
2271 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2272 spin_unlock_irq(&phba->hbalock);
2273 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2274 "2836 New FCF matches in-use "
88f43a08
JS		 2275 "FCF (x%x), port_state:x%x, "
2276 "fc_flag:x%x\n",
2277 phba->fcf.current_rec.fcf_indx,
2278 phba->pport->port_state,
2279 phba->pport->fc_flag);
5ac6b303
JS		 2280 goto out;
2281 } else
2282 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2283 "2863 New FCF (x%x) matches "
2284 "property of in-use FCF (x%x)\n",
dbb6b3ab 2285 bf_get(lpfc_fcf_record_fcf_index,
5ac6b303
JS		 2286 new_fcf_record),
2287 phba->fcf.current_rec.fcf_indx);
6fb120a7 2288 }
ecfd03c6
JS		 2289 /*
2290 * Read next FCF record from HBA searching for the matching
2291 * with in-use record only if not during the fast failover
2292 * period. In case of fast failover period, it shall try to
2293 * determine whether the FCF record just read should be the
2294 * next candidate.
2295 */
2296 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
0c9ab6f5 2297 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 2298 goto read_next_fcf;
2299 }
6fb120a7 2300 }
ecfd03c6
JS		 2301 /*
2302 * Update on failover FCF record only if it's in FCF fast-failover
2303 * period; otherwise, update on current FCF record.
2304 */
fc2b989b
JS		 2305 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2306 fcf_rec = &phba->fcf.failover_rec;
2307 else
ecfd03c6
JS		 2308 fcf_rec = &phba->fcf.current_rec;
2309
6fb120a7
JS		 2310 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
2311 /*
ecfd03c6
JS		 2312 * If the driver FCF record does not have boot flag
2313 * set and new hba fcf record has boot flag set, use
2314 * the new hba fcf record.
6fb120a7 2315 */
ecfd03c6
JS		 2316 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
2317 /* Choose this FCF record */
dbb6b3ab
JS		 2318 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2319 "2837 Update current FCF record "
2320 "(x%x) with new FCF record (x%x)\n",
2321 fcf_rec->fcf_indx,
2322 bf_get(lpfc_fcf_record_fcf_index,
2323 new_fcf_record));
ecfd03c6
JS		 2324 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2325 addr_mode, vlan_id, BOOT_ENABLE);
0c9ab6f5 2326 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 2327 goto read_next_fcf;
2328 }
2329 /*
ecfd03c6
JS		 2330 * If the driver FCF record has boot flag set and the
2331 * new hba FCF record does not have boot flag, read
2332 * the next FCF record.
6fb120a7 2333 */
ecfd03c6 2334 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
0c9ab6f5 2335 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 2336 goto read_next_fcf;
2337 }
2338 /*
ecfd03c6
JS		 2339 * If the new hba FCF record has lower priority value
2340 * than the driver FCF record, use the new record.
6fb120a7 2341 */
fc2b989b 2342 if (new_fcf_record->fip_priority < fcf_rec->priority) {
999d813f 2343 /* Choose the new FCF record with lower priority */
dbb6b3ab
JS		 2344 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2345 "2838 Update current FCF record "
2346 "(x%x) with new FCF record (x%x)\n",
2347 fcf_rec->fcf_indx,
2348 bf_get(lpfc_fcf_record_fcf_index,
2349 new_fcf_record));
ecfd03c6
JS		 2350 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2351 addr_mode, vlan_id, 0);
999d813f
JS		 2352 /* Reset running random FCF selection count */
2353 phba->fcf.eligible_fcf_cnt = 1;
2354 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
2355 /* Update running random FCF selection count */
2356 phba->fcf.eligible_fcf_cnt++;
2357 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
2358 phba->fcf.eligible_fcf_cnt);
dbb6b3ab
JS		 2359 if (select_new_fcf) {
2360 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2361 "2839 Update current FCF record "
2362 "(x%x) with new FCF record (x%x)\n",
2363 fcf_rec->fcf_indx,
2364 bf_get(lpfc_fcf_record_fcf_index,
2365 new_fcf_record));
999d813f
JS		 2366 /* Choose the new FCF by random selection */
2367 __lpfc_update_fcf_record(phba, fcf_rec,
2368 new_fcf_record,
2369 addr_mode, vlan_id, 0);
dbb6b3ab 2370 }
6fb120a7 2371 }
0c9ab6f5 2372 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 2373 goto read_next_fcf;
2374 }
2375 /*
ecfd03c6
JS		 2376 * This is the first suitable FCF record, choose this record for
2377 * initial best-fit FCF.
6fb120a7 2378 */
ecfd03c6 2379 if (fcf_rec) {
dbb6b3ab 2380 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a
JS		 2381 "2840 Update initial FCF candidate "
2382 "with FCF (x%x)\n",
dbb6b3ab
JS		 2383 bf_get(lpfc_fcf_record_fcf_index,
2384 new_fcf_record));
ecfd03c6
JS		 2385 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2386 addr_mode, vlan_id, (boot_flag ?
2387 BOOT_ENABLE : 0));
2388 phba->fcf.fcf_flag |= FCF_AVAILABLE;
999d813f
JS		 2389 /* Setup initial running random FCF selection count */
2390 phba->fcf.eligible_fcf_cnt = 1;
6fb120a7 2391 }
0c9ab6f5 2392 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 2393 goto read_next_fcf;
2394
2395read_next_fcf:
2396 lpfc_sli4_mbox_cmd_free(phba, mboxq);
ecfd03c6
JS		 2397 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
2398 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
2399 /*
2400 * Case of FCF fast failover scan
2401 */
2402
2403 /*
2404 * It has not found any suitable FCF record, cancel
2405 * FCF scan inprogress, and do nothing
2406 */
2407 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
0c9ab6f5 2408 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
a93ff37a
JS		 2409 "2782 No suitable FCF found: "
2410 "(x%x/x%x)\n",
0c9ab6f5
JS		 2411 phba->fcoe_eventtag_at_fcf_scan,
2412 bf_get(lpfc_fcf_record_fcf_index,
2413 new_fcf_record));
a93ff37a
JS		 2414 spin_lock_irq(&phba->hbalock);
2415 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
2416 phba->hba_flag &= ~FCF_TS_INPROG;
2417 spin_unlock_irq(&phba->hbalock);
2418 /* Unregister in-use FCF and rescan */
2419 lpfc_printf_log(phba, KERN_INFO,
2420 LOG_FIP,
2421 "2864 On devloss tmo "
2422 "unreg in-use FCF and "
2423 "rescan FCF table\n");
2424 lpfc_unregister_fcf_rescan(phba);
2425 return;
2426 }
0c9ab6f5 2427 /*
a93ff37a 2428 * Let next new FCF event trigger fast failover
0c9ab6f5 2429 */
a93ff37a 2430 phba->hba_flag &= ~FCF_TS_INPROG;
0c9ab6f5 2431 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 2432 return;
2433 }
2434 /*
2435 * It has found a suitable FCF record that is not
2436 * the same as in-use FCF record, unregister the
2437 * in-use FCF record, replace the in-use FCF record
2438 * with the new FCF record, mark FCF fast failover
2439 * completed, and then start register the new FCF
2440 * record.
2441 */
2442
0c9ab6f5 2443 /* Unregister the current in-use FCF record */
ecfd03c6 2444 lpfc_unregister_fcf(phba);
0c9ab6f5
JS		 2445
2446 /* Replace in-use record with the new record */
dbb6b3ab 2447 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a
JS		 2448 "2842 Replace in-use FCF (x%x) "
2449 "with failover FCF (x%x)\n",
dbb6b3ab
JS		 2450 phba->fcf.current_rec.fcf_indx,
2451 phba->fcf.failover_rec.fcf_indx);
ecfd03c6
JS		 2452 memcpy(&phba->fcf.current_rec,
2453 &phba->fcf.failover_rec,
2454 sizeof(struct lpfc_fcf_rec));
3804dc84
JS		 2455 /*
2456 * Mark the fast FCF failover rediscovery completed
2457 * and the start of the first round of the roundrobin
2458 * FCF failover.
2459 */
0c9ab6f5 2460 spin_lock_irq(&phba->hbalock);
a93ff37a 2461 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
0c9ab6f5 2462 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 2463 /* Register to the new FCF record */
2464 lpfc_register_fcf(phba);
2465 } else {
2466 /*
2467 * In case of transaction period to fast FCF failover,
2468 * do nothing when search to the end of the FCF table.
2469 */
2470 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
2471 (phba->fcf.fcf_flag & FCF_REDISC_PEND))
2472 return;
dbb6b3ab 2473
7d791df7
JS		 2474 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2475 phba->fcf.fcf_flag & FCF_IN_USE) {
dbb6b3ab
JS		 2476 /*
2477 * In case the current in-use FCF record no
2478 * longer existed during FCF discovery that
2479 * was not triggered by fast FCF failover
2480 * process, treat it as fast FCF failover.
2481 */
2482 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2483 "2841 In-use FCF record (x%x) "
2484 "not reported, entering fast "
2485 "FCF failover mode scanning.\n",
2486 phba->fcf.current_rec.fcf_indx);
2487 spin_lock_irq(&phba->hbalock);
2488 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2489 spin_unlock_irq(&phba->hbalock);
dbb6b3ab
JS		 2490 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2491 LPFC_FCOE_FCF_GET_FIRST);
2492 return;
2493 }
0c9ab6f5 2494 /* Register to the new FCF record */
ecfd03c6
JS		 2495 lpfc_register_fcf(phba);
2496 }
2497 } else
0c9ab6f5 2498 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
6fb120a7
JS		 2499 return;
2500
2501out:
2502 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2503 lpfc_register_fcf(phba);
2504
2505 return;
2506}
2507
0c9ab6f5 2508/**
a93ff37a 2509 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
0c9ab6f5
JS		 2510 * @phba: pointer to lpfc hba data structure.
2511 * @mboxq: pointer to mailbox object.
2512 *
a93ff37a 2513 * This is the callback function for FLOGI failure roundrobin FCF failover
0c9ab6f5
JS		 2514 * read FCF record mailbox command from the eligible FCF record bmask for
2515 * performing the failover. If the FCF read back is not valid/available, it
2516 * fails through to retrying FLOGI to the currently registered FCF again.
2517 * Otherwise, if the FCF read back is valid and available, it will set the
2518 * newly read FCF record to the failover FCF record, unregister currently
2519 * registered FCF record, copy the failover FCF record to the current
2520 * FCF record, and then register the current FCF record before proceeding
2521 * to trying FLOGI on the new failover FCF.
2522 */
2523void
2524lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2525{
2526 struct fcf_record *new_fcf_record;
2527 uint32_t boot_flag, addr_mode;
a93ff37a 2528 uint16_t next_fcf_index, fcf_index;
0c9ab6f5
JS		 2529 uint16_t current_fcf_index;
2530 uint16_t vlan_id;
a93ff37a 2531 int rc;
0c9ab6f5 2532
a93ff37a 2533 /* If link state is not up, stop the roundrobin failover process */
0c9ab6f5
JS		 2534 if (phba->link_state < LPFC_LINK_UP) {
2535 spin_lock_irq(&phba->hbalock);
2536 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
a93ff37a 2537 phba->hba_flag &= ~FCF_RR_INPROG;
0c9ab6f5 2538 spin_unlock_irq(&phba->hbalock);
a93ff37a 2539 goto out;
0c9ab6f5
JS		 2540 }
2541
2542 /* Parse the FCF record from the non-embedded mailbox command */
2543 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2544 &next_fcf_index);
2545 if (!new_fcf_record) {
2546 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2547 "2766 Mailbox command READ_FCF_RECORD "
646a2dd7
JS		 2548 "failed to retrieve a FCF record. "
2549 "hba_flg x%x fcf_flg x%x\n", phba->hba_flag,
2550 phba->fcf.fcf_flag);
2551 lpfc_unregister_fcf_rescan(phba);
2552 goto out;
0c9ab6f5
JS		 2553 }
2554
2555 /* Get the needed parameters from FCF record */
a93ff37a
JS		 2556 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2557 &addr_mode, &vlan_id);
0c9ab6f5
JS		 2558
2559 /* Log the FCF record information if turned on */
2560 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2561 next_fcf_index);
2562
a93ff37a
JS		 2563 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2564 if (!rc) {
2565 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2566 "2848 Remove ineligible FCF (x%x) from "
2567 "from roundrobin bmask\n", fcf_index);
2568 /* Clear roundrobin bmask bit for ineligible FCF */
2569 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
2570 /* Perform next round of roundrobin FCF failover */
2571 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
2572 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
2573 if (rc)
2574 goto out;
2575 goto error_out;
2576 }
2577
2578 if (fcf_index == phba->fcf.current_rec.fcf_indx) {
2579 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2580 "2760 Perform FLOGI roundrobin FCF failover: "
2581 "FCF (x%x) back to FCF (x%x)\n",
2582 phba->fcf.current_rec.fcf_indx, fcf_index);
2583 /* Wait 500 ms before retrying FLOGI to current FCF */
2584 msleep(500);
76a95d75 2585 lpfc_issue_init_vfi(phba->pport);
a93ff37a
JS		 2586 goto out;
2587 }
2588
0c9ab6f5 2589 /* Upload new FCF record to the failover FCF record */
dbb6b3ab 2590 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a
JS		 2591 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2592 phba->fcf.failover_rec.fcf_indx, fcf_index);
0c9ab6f5
JS		 2593 spin_lock_irq(&phba->hbalock);
2594 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2595 new_fcf_record, addr_mode, vlan_id,
2596 (boot_flag ? BOOT_ENABLE : 0));
2597 spin_unlock_irq(&phba->hbalock);
2598
2599 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2600
2601 /* Unregister the current in-use FCF record */
2602 lpfc_unregister_fcf(phba);
2603
2604 /* Replace in-use record with the new record */
2605 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2606 sizeof(struct lpfc_fcf_rec));
2607
2608 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a
JS		 2609 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2610 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
0c9ab6f5 2611
a93ff37a
JS		 2612error_out:
2613 lpfc_register_fcf(phba);
0c9ab6f5
JS		 2614out:
2615 lpfc_sli4_mbox_cmd_free(phba, mboxq);
0c9ab6f5
JS		 2616}
2617
2618/**
2619 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2620 * @phba: pointer to lpfc hba data structure.
2621 * @mboxq: pointer to mailbox object.
2622 *
2623 * This is the callback function of read FCF record mailbox command for
a93ff37a 2624 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
0c9ab6f5
JS		 2625 * failover when a new FCF event happened. If the FCF read back is
2626 * valid/available and it passes the connection list check, it updates
a93ff37a 2627 * the bmask for the eligible FCF record for roundrobin failover.
0c9ab6f5
JS		 2628 */
2629void
2630lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2631{
2632 struct fcf_record *new_fcf_record;
2633 uint32_t boot_flag, addr_mode;
2634 uint16_t fcf_index, next_fcf_index;
2635 uint16_t vlan_id;
2636 int rc;
2637
2638 /* If link state is not up, no need to proceed */
2639 if (phba->link_state < LPFC_LINK_UP)
2640 goto out;
2641
2642 /* If FCF discovery period is over, no need to proceed */
3804dc84 2643 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
0c9ab6f5
JS		 2644 goto out;
2645
2646 /* Parse the FCF record from the non-embedded mailbox command */
2647 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2648 &next_fcf_index);
2649 if (!new_fcf_record) {
2650 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2651 "2767 Mailbox command READ_FCF_RECORD "
2652 "failed to retrieve a FCF record.\n");
2653 goto out;
2654 }
2655
2656 /* Check the connection list for eligibility */
2657 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2658 &addr_mode, &vlan_id);
2659
2660 /* Log the FCF record information if turned on */
2661 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2662 next_fcf_index);
2663
2664 if (!rc)
2665 goto out;
2666
2667 /* Update the eligible FCF record index bmask */
2668 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
7d791df7
JS		 2669
2670 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
0c9ab6f5
JS		 2671
2672out:
2673 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2674}
2675
76a95d75
JS		 2676/**
2677 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2678 * @phba: pointer to lpfc hba data structure.
2679 * @mboxq: pointer to mailbox data structure.
2680 *
2681 * This function handles completion of init vfi mailbox command.
2682 */
b86a6756 2683static void
76a95d75
JS		 2684lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2685{
2686 struct lpfc_vport *vport = mboxq->vport;
2687
df9e1b59
JS		 2688 /*
2689 * VFI not supported on interface type 0, just do the flogi
2690 * Also continue if the VFI is in use - just use the same one.
2691 */
2692 if (mboxq->u.mb.mbxStatus &&
2693 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2694 LPFC_SLI_INTF_IF_TYPE_0) &&
2695 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
76a95d75
JS		 2696 lpfc_printf_vlog(vport, KERN_ERR,
2697 LOG_MBOX,
2698 "2891 Init VFI mailbox failed 0x%x\n",
2699 mboxq->u.mb.mbxStatus);
2700 mempool_free(mboxq, phba->mbox_mem_pool);
2701 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2702 return;
2703 }
73d91e50 2704
76a95d75
JS		 2705 lpfc_initial_flogi(vport);
2706 mempool_free(mboxq, phba->mbox_mem_pool);
2707 return;
2708}
2709
2710/**
2711 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2712 * @vport: pointer to lpfc_vport data structure.
2713 *
2714 * This function issue a init_vfi mailbox command to initialize the VFI and
2715 * VPI for the physical port.
2716 */
2717void
2718lpfc_issue_init_vfi(struct lpfc_vport *vport)
2719{
2720 LPFC_MBOXQ_t *mboxq;
2721 int rc;
2722 struct lpfc_hba *phba = vport->phba;
2723
2724 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2725 if (!mboxq) {
2726 lpfc_printf_vlog(vport, KERN_ERR,
2727 LOG_MBOX, "2892 Failed to allocate "
2728 "init_vfi mailbox\n");
2729 return;
2730 }
2731 lpfc_init_vfi(mboxq, vport);
2732 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
2733 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
2734 if (rc == MBX_NOT_FINISHED) {
2735 lpfc_printf_vlog(vport, KERN_ERR,
2736 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n");
2737 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2738 }
2739}
2740
1c6834a7
JS		 2741/**
2742 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2743 * @phba: pointer to lpfc hba data structure.
2744 * @mboxq: pointer to mailbox data structure.
2745 *
2746 * This function handles completion of init vpi mailbox command.
2747 */
695a814e 2748void
1c6834a7
JS		 2749lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2750{
2751 struct lpfc_vport *vport = mboxq->vport;
695a814e 2752 struct lpfc_nodelist *ndlp;
72100cc4
JS		 2753 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2754
1c6834a7
JS		 2755 if (mboxq->u.mb.mbxStatus) {
2756 lpfc_printf_vlog(vport, KERN_ERR,
2757 LOG_MBOX,
2758 "2609 Init VPI mailbox failed 0x%x\n",
2759 mboxq->u.mb.mbxStatus);
2760 mempool_free(mboxq, phba->mbox_mem_pool);
2761 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2762 return;
2763 }
72100cc4 2764 spin_lock_irq(shost->host_lock);
1c6834a7 2765 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
72100cc4 2766 spin_unlock_irq(shost->host_lock);
1c6834a7 2767
695a814e
JS		 2768 /* If this port is physical port or FDISC is done, do reg_vpi */
2769 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
2770 ndlp = lpfc_findnode_did(vport, Fabric_DID);
2771 if (!ndlp)
2772 lpfc_printf_vlog(vport, KERN_ERR,
2773 LOG_DISCOVERY,
2774 "2731 Cannot find fabric "
2775 "controller node\n");
2776 else
2777 lpfc_register_new_vport(phba, vport, ndlp);
2778 mempool_free(mboxq, phba->mbox_mem_pool);
2779 return;
2780 }
2781
1c6834a7
JS		 2782 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2783 lpfc_initial_fdisc(vport);
2784 else {
2785 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
6a9c52cf
JS		 2786 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2787 "2606 No NPIV Fabric support\n");
1c6834a7 2788 }
695a814e 2789 mempool_free(mboxq, phba->mbox_mem_pool);
1c6834a7
JS		 2790 return;
2791}
2792
ecfd03c6
JS		 2793/**
2794 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2795 * @vport: pointer to lpfc_vport data structure.
2796 *
2797 * This function issue a init_vpi mailbox command to initialize
2798 * VPI for the vport.
2799 */
2800void
2801lpfc_issue_init_vpi(struct lpfc_vport *vport)
2802{
2803 LPFC_MBOXQ_t *mboxq;
16a3a208
JS		 2804 int rc, vpi;
2805
2806 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {
2807 vpi = lpfc_alloc_vpi(vport->phba);
2808 if (!vpi) {
2809 lpfc_printf_vlog(vport, KERN_ERR,
2810 LOG_MBOX,
2811 "3303 Failed to obtain vport vpi\n");
2812 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2813 return;
2814 }
2815 vport->vpi = vpi;
2816 }
ecfd03c6
JS		 2817
2818 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
2819 if (!mboxq) {
2820 lpfc_printf_vlog(vport, KERN_ERR,
2821 LOG_MBOX, "2607 Failed to allocate "
2822 "init_vpi mailbox\n");
2823 return;
2824 }
2825 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
2826 mboxq->vport = vport;
2827 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
2828 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
2829 if (rc == MBX_NOT_FINISHED) {
2830 lpfc_printf_vlog(vport, KERN_ERR,
2831 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
2832 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2833 }
2834}
2835
6fb120a7
JS		 2836/**
2837 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2838 * @phba: pointer to lpfc hba data structure.
2839 *
2840 * This function loops through the list of vports on the @phba and issues an
2841 * FDISC if possible.
2842 */
2843void
2844lpfc_start_fdiscs(struct lpfc_hba *phba)
2845{
2846 struct lpfc_vport **vports;
2847 int i;
2848
2849 vports = lpfc_create_vport_work_array(phba);
2850 if (vports != NULL) {
2851 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2852 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
2853 continue;
2854 /* There are no vpi for this vport */
2855 if (vports[i]->vpi > phba->max_vpi) {
2856 lpfc_vport_set_state(vports[i],
2857 FC_VPORT_FAILED);
2858 continue;
2859 }
76a95d75 2860 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6fb120a7
JS		 2861 lpfc_vport_set_state(vports[i],
2862 FC_VPORT_LINKDOWN);
2863 continue;
2864 }
1c6834a7 2865 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
ecfd03c6 2866 lpfc_issue_init_vpi(vports[i]);
1c6834a7
JS		 2867 continue;
2868 }
6fb120a7
JS		 2869 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2870 lpfc_initial_fdisc(vports[i]);
2871 else {
2872 lpfc_vport_set_state(vports[i],
2873 FC_VPORT_NO_FABRIC_SUPP);
2874 lpfc_printf_vlog(vports[i], KERN_ERR,
2875 LOG_ELS,
2876 "0259 No NPIV "
2877 "Fabric support\n");
2878 }
2879 }
2880 }
2881 lpfc_destroy_vport_work_array(phba, vports);
2882}
2883
2884void
2885lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2886{
2887 struct lpfc_dmabuf *dmabuf = mboxq->context1;
2888 struct lpfc_vport *vport = mboxq->vport;
72100cc4 2889 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6fb120a7 2890
f5eca9be
JS		 2891 /*
2892 * VFI not supported for interface type 0, so ignore any mailbox
2893 * error (except VFI in use) and continue with the discovery.
2894 */
2895 if (mboxq->u.mb.mbxStatus &&
2896 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2897 LPFC_SLI_INTF_IF_TYPE_0) &&
2898 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
6fb120a7
JS		 2899 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2900 "2018 REG_VFI mbxStatus error x%x "
2901 "HBA state x%x\n",
2902 mboxq->u.mb.mbxStatus, vport->port_state);
76a95d75 2903 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6fb120a7
JS		 2904 /* FLOGI failed, use loop map to make discovery list */
2905 lpfc_disc_list_loopmap(vport);
2906 /* Start discovery */
2907 lpfc_disc_start(vport);
1b51197d 2908 goto out_free_mem;
6fb120a7
JS		 2909 }
2910 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1b51197d 2911 goto out_free_mem;
6fb120a7 2912 }
ae05ebe3 2913
e74c03c8
JS		 2914 /* If the VFI is already registered, there is nothing else to do
2915 * Unless this was a VFI update and we are in PT2PT mode, then
2916 * we should drop through to set the port state to ready.
2917 */
ae05ebe3 2918 if (vport->fc_flag & FC_VFI_REGISTERED)
e74c03c8
JS		 2919 if (!(phba->sli_rev == LPFC_SLI_REV4 &&
2920 vport->fc_flag & FC_PT2PT))
2921 goto out_free_mem;
ae05ebe3 2922
c868595d 2923 /* The VPI is implicitly registered when the VFI is registered */
72100cc4 2924 spin_lock_irq(shost->host_lock);
c868595d 2925 vport->vpi_state |= LPFC_VPI_REGISTERED;
695a814e 2926 vport->fc_flag |= FC_VFI_REGISTERED;
695a814e 2927 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
5248a749 2928 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
72100cc4 2929 spin_unlock_irq(shost->host_lock);
6fb120a7 2930
1b51197d
JS		 2931 /* In case SLI4 FC loopback test, we are ready */
2932 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2933 (phba->link_flag & LS_LOOPBACK_MODE)) {
2934 phba->link_state = LPFC_HBA_READY;
2935 goto out_free_mem;
2936 }
2937
e74c03c8
JS		 2938 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2939 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
2940 "alpacnt:%d LinkState:%x topology:%x\n",
2941 vport->port_state, vport->fc_flag, vport->fc_myDID,
2942 vport->phba->alpa_map[0],
2943 phba->link_state, phba->fc_topology);
2944
6fb120a7 2945 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
939723a4
JS		 2946 /*
2947 * For private loop or for NPort pt2pt,
2948 * just start discovery and we are done.
2949 */
2950 if ((vport->fc_flag & FC_PT2PT) ||
2951 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
2952 !(vport->fc_flag & FC_PUBLIC_LOOP))) {
2953
76a95d75
JS		 2954 /* Use loop map to make discovery list */
2955 lpfc_disc_list_loopmap(vport);
2956 /* Start discovery */
e74c03c8
JS		 2957 if (vport->fc_flag & FC_PT2PT)
2958 vport->port_state = LPFC_VPORT_READY;
2959 else
2960 lpfc_disc_start(vport);
76a95d75
JS		 2961 } else {
2962 lpfc_start_fdiscs(phba);
2963 lpfc_do_scr_ns_plogi(phba, vport);
2964 }
6fb120a7
JS		 2965 }
2966
1b51197d 2967out_free_mem:
6fb120a7
JS		 2968 mempool_free(mboxq, phba->mbox_mem_pool);
2969 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
2970 kfree(dmabuf);
2971 return;
2972}
2973
dea3101e 2974static void
2e0fef85 2975lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 2976{
6fb120a7 2977 MAILBOX_t *mb = &pmb->u.mb;
dea3101e 2978 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
2e0fef85 2979 struct lpfc_vport *vport = pmb->vport;
dea3101e 2980
2981
2982 /* Check for error */
2983 if (mb->mbxStatus) {
2984 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 2985 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2986 "0319 READ_SPARAM mbxStatus error x%x "
2987 "hba state x%x>\n",
2988 mb->mbxStatus, vport->port_state);
dea3101e 2989 lpfc_linkdown(phba);
dea3101e 2990 goto out;
2991 }
2992
2e0fef85 2993 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
dea3101e 2994 sizeof (struct serv_parm));
0558056c 2995 lpfc_update_vport_wwn(vport);
92d7f7b0
JS		 2996 if (vport->port_type == LPFC_PHYSICAL_PORT) {
2997 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
2998 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
2999 }
3000
dea3101e 3001 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3002 kfree(mp);
2e0fef85 3003 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 3004 return;
3005
3006out:
3007 pmb->context1 = NULL;
3008 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3009 kfree(mp);
92d7f7b0
JS		 3010 lpfc_issue_clear_la(phba, vport);
3011 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 3012 return;
3013}
3014
3015static void
76a95d75 3016lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
dea3101e 3017{
92d7f7b0 3018 struct lpfc_vport *vport = phba->pport;
6fb120a7 3019 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
df9e1b59 3020 struct Scsi_Host *shost;
2e0fef85 3021 int i;
14691150
JS		 3022 struct lpfc_dmabuf *mp;
3023 int rc;
6fb120a7 3024 struct fcf_record *fcf_record;
38c20673 3025 uint32_t fc_flags = 0;
14691150 3026
92d7f7b0 3027 spin_lock_irq(&phba->hbalock);
76a95d75
JS		 3028 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
3029 case LPFC_LINK_SPEED_1GHZ:
3030 case LPFC_LINK_SPEED_2GHZ:
3031 case LPFC_LINK_SPEED_4GHZ:
3032 case LPFC_LINK_SPEED_8GHZ:
3033 case LPFC_LINK_SPEED_10GHZ:
3034 case LPFC_LINK_SPEED_16GHZ:
3035 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
f4b4c68f 3036 break;
92d7f7b0 3037 default:
76a95d75 3038 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
92d7f7b0 3039 break;
dea3101e 3040 }
3041
e74c03c8
JS		 3042 if (phba->fc_topology &&
3043 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {
3044 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3045 "3314 Toplogy changed was 0x%x is 0x%x\n",
3046 phba->fc_topology,
3047 bf_get(lpfc_mbx_read_top_topology, la));
3048 phba->fc_topology_changed = 1;
3049 }
3050
76a95d75 3051 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
92d7f7b0 3052 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
dea3101e 3053
df9e1b59 3054 shost = lpfc_shost_from_vport(vport);
76a95d75 3055 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
92d7f7b0 3056 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
dea3101e 3057
6a9c52cf
JS		 3058 /* if npiv is enabled and this adapter supports npiv log
3059 * a message that npiv is not supported in this topology
3060 */
3061 if (phba->cfg_enable_npiv && phba->max_vpi)
495a714c
JS		 3062 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3063 "1309 Link Up Event npiv not supported in loop "
3064 "topology\n");
92d7f7b0 3065 /* Get Loop Map information */
38c20673
JS		 3066 if (bf_get(lpfc_mbx_read_top_il, la))
3067 fc_flags |= FC_LBIT;
dea3101e 3068
76a95d75
JS		 3069 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
3070 i = la->lilpBde64.tus.f.bdeSize;
dea3101e 3071
3072 if (i == 0) {
3073 phba->alpa_map[0] = 0;
3074 } else {
e8b62011 3075 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
dea3101e 3076 int numalpa, j, k;
3077 union {
3078 uint8_t pamap[16];
3079 struct {
3080 uint32_t wd1;
3081 uint32_t wd2;
3082 uint32_t wd3;
3083 uint32_t wd4;
3084 } pa;
3085 } un;
3086 numalpa = phba->alpa_map[0];
3087 j = 0;
3088 while (j < numalpa) {
3089 memset(un.pamap, 0, 16);
3090 for (k = 1; j < numalpa; k++) {
3091 un.pamap[k - 1] =
3092 phba->alpa_map[j + 1];
3093 j++;
3094 if (k == 16)
3095 break;
3096 }
3097 /* Link Up Event ALPA map */
3098 lpfc_printf_log(phba,
92d7f7b0
JS		 3099 KERN_WARNING,
3100 LOG_LINK_EVENT,
e8b62011 3101 "1304 Link Up Event "
92d7f7b0
JS		 3102 "ALPA map Data: x%x "
3103 "x%x x%x x%x\n",
92d7f7b0
JS		 3104 un.pa.wd1, un.pa.wd2,
3105 un.pa.wd3, un.pa.wd4);
dea3101e 3106 }
3107 }
3108 }
3109 } else {
92d7f7b0 3110 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
78b2d852 3111 if (phba->max_vpi && phba->cfg_enable_npiv &&
df9e1b59 3112 (phba->sli_rev >= LPFC_SLI_REV3))
92d7f7b0
JS		 3113 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3114 }
2e0fef85 3115 vport->fc_myDID = phba->fc_pref_DID;
38c20673 3116 fc_flags |= FC_LBIT;
dea3101e 3117 }
92d7f7b0 3118 spin_unlock_irq(&phba->hbalock);
dea3101e 3119
38c20673
JS		 3120 if (fc_flags) {
3121 spin_lock_irq(shost->host_lock);
3122 vport->fc_flag |= fc_flags;
3123 spin_unlock_irq(shost->host_lock);
3124 }
3125
dea3101e 3126 lpfc_linkup(phba);
9f1177a3
JS		 3127 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3128 if (!sparam_mbox)
3129 goto out;
3130
3131 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
3132 if (rc) {
3133 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3134 goto out;
3135 }
3136 sparam_mbox->vport = vport;
3137 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
3138 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
3139 if (rc == MBX_NOT_FINISHED) {
3140 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
3141 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3142 kfree(mp);
3143 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3144 goto out;
dea3101e 3145 }
3146
76a95d75 3147 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6fb120a7
JS		 3148 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3149 if (!cfglink_mbox)
3150 goto out;
2e0fef85 3151 vport->port_state = LPFC_LOCAL_CFG_LINK;
dea3101e 3152 lpfc_config_link(phba, cfglink_mbox);
2e0fef85 3153 cfglink_mbox->vport = vport;
25594c6b 3154 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
0b727fea 3155 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
6fb120a7
JS		 3156 if (rc == MBX_NOT_FINISHED) {
3157 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
3158 goto out;
3159 }
3160 } else {
32b9793f 3161 vport->port_state = LPFC_VPORT_UNKNOWN;
6fb120a7
JS		 3162 /*
3163 * Add the driver's default FCF record at FCF index 0 now. This
3164 * is phase 1 implementation that support FCF index 0 and driver
3165 * defaults.
3166 */
45ed1190 3167 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
6fb120a7
JS		 3168 fcf_record = kzalloc(sizeof(struct fcf_record),
3169 GFP_KERNEL);
3170 if (unlikely(!fcf_record)) {
3171 lpfc_printf_log(phba, KERN_ERR,
3172 LOG_MBOX | LOG_SLI,
b595076a 3173 "2554 Could not allocate memory for "
6fb120a7
JS		 3174 "fcf record\n");
3175 rc = -ENODEV;
3176 goto out;
3177 }
3178
3179 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
3180 LPFC_FCOE_FCF_DEF_INDEX);
3181 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
3182 if (unlikely(rc)) {
3183 lpfc_printf_log(phba, KERN_ERR,
3184 LOG_MBOX | LOG_SLI,
3185 "2013 Could not manually add FCF "
3186 "record 0, status %d\n", rc);
3187 rc = -ENODEV;
3188 kfree(fcf_record);
3189 goto out;
3190 }
3191 kfree(fcf_record);
3192 }
3193 /*
3194 * The driver is expected to do FIP/FCF. Call the port
3195 * and get the FCF Table.
3196 */
32b9793f 3197 spin_lock_irq(&phba->hbalock);
a93ff37a 3198 if (phba->hba_flag & FCF_TS_INPROG) {
32b9793f
JS		 3199 spin_unlock_irq(&phba->hbalock);
3200 return;
3201 }
0c9ab6f5
JS		 3202 /* This is the initial FCF discovery scan */
3203 phba->fcf.fcf_flag |= FCF_INIT_DISC;
32b9793f 3204 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 3205 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3206 "2778 Start FCF table scan at linkup\n");
0c9ab6f5
JS		 3207 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3208 LPFC_FCOE_FCF_GET_FIRST);
3209 if (rc) {
3210 spin_lock_irq(&phba->hbalock);
3211 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
3212 spin_unlock_irq(&phba->hbalock);
6fb120a7 3213 goto out;
0c9ab6f5 3214 }
38b92ef8 3215 /* Reset FCF roundrobin bmask for new discovery */
7d791df7 3216 lpfc_sli4_clear_fcf_rr_bmask(phba);
dea3101e 3217 }
6fb120a7
JS		 3218
3219 return;
92d7f7b0
JS		 3220out:
3221 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 3222 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3223 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
3224 vport->port_state, sparam_mbox, cfglink_mbox);
92d7f7b0
JS		 3225 lpfc_issue_clear_la(phba, vport);
3226 return;
dea3101e 3227}
3228
3229static void
84774a4d 3230lpfc_enable_la(struct lpfc_hba *phba)
2e0fef85 3231{
dea3101e 3232 uint32_t control;
3233 struct lpfc_sli *psli = &phba->sli;
2e0fef85 3234 spin_lock_irq(&phba->hbalock);
dea3101e 3235 psli->sli_flag |= LPFC_PROCESS_LA;
3772a991
JS		 3236 if (phba->sli_rev <= LPFC_SLI_REV3) {
3237 control = readl(phba->HCregaddr);
3238 control |= HC_LAINT_ENA;
3239 writel(control, phba->HCregaddr);
3240 readl(phba->HCregaddr); /* flush */
3241 }
2e0fef85 3242 spin_unlock_irq(&phba->hbalock);
dea3101e 3243}
3244
84774a4d
JS		 3245static void
3246lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
3247{
3248 lpfc_linkdown(phba);
3249 lpfc_enable_la(phba);
6fb120a7 3250 lpfc_unregister_unused_fcf(phba);
84774a4d
JS		 3251 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3252}
3253
3254
dea3101e 3255/*
76a95d75 3256 * This routine handles processing a READ_TOPOLOGY mailbox
dea3101e 3257 * command upon completion. It is setup in the LPFC_MBOXQ
3258 * as the completion routine when the command is
3259 * handed off to the SLI layer.
3260 */
3261void
76a95d75 3262lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 3263{
2e0fef85
JS		 3264 struct lpfc_vport *vport = pmb->vport;
3265 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
76a95d75 3266 struct lpfc_mbx_read_top *la;
04c68496 3267 MAILBOX_t *mb = &pmb->u.mb;
dea3101e 3268 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3269
0d2b6b83
JS		 3270 /* Unblock ELS traffic */
3271 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 3272 /* Check for error */
3273 if (mb->mbxStatus) {
ed957684 3274 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
e8b62011
JS		 3275 "1307 READ_LA mbox error x%x state x%x\n",
3276 mb->mbxStatus, vport->port_state);
dea3101e 3277 lpfc_mbx_issue_link_down(phba);
2e0fef85 3278 phba->link_state = LPFC_HBA_ERROR;
76a95d75 3279 goto lpfc_mbx_cmpl_read_topology_free_mbuf;
dea3101e 3280 }
3281
76a95d75 3282 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
dea3101e 3283
3284 memcpy(&phba->alpa_map[0], mp->virt, 128);
3285
2e0fef85 3286 spin_lock_irq(shost->host_lock);
76a95d75 3287 if (bf_get(lpfc_mbx_read_top_pb, la))
2e0fef85 3288 vport->fc_flag |= FC_BYPASSED_MODE;
c9f8735b 3289 else
2e0fef85
JS		 3290 vport->fc_flag &= ~FC_BYPASSED_MODE;
3291 spin_unlock_irq(shost->host_lock);
c9f8735b 3292
be0c0080 3293 if (phba->fc_eventTag <= la->eventTag) {
dea3101e 3294 phba->fc_stat.LinkMultiEvent++;
76a95d75 3295 if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP)
dea3101e 3296 if (phba->fc_eventTag != 0)
3297 lpfc_linkdown(phba);
92d7f7b0 3298 }
dea3101e 3299
3300 phba->fc_eventTag = la->eventTag;
be0c0080
JS		 3301 if (phba->sli_rev < LPFC_SLI_REV4) {
3302 spin_lock_irq(&phba->hbalock);
3303 if (bf_get(lpfc_mbx_read_top_mm, la))
3304 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
3305 else
3306 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
3307 spin_unlock_irq(&phba->hbalock);
3308 }
dea3101e 3309
4d9ab994 3310 phba->link_events++;
76a95d75 3311 if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) &&
be0c0080 3312 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) {
dea3101e 3313 phba->fc_stat.LinkUp++;
2e0fef85 3314 if (phba->link_flag & LS_LOOPBACK_MODE) {
3163f725 3315 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011
JS		 3316 "1306 Link Up Event in loop back mode "
3317 "x%x received Data: x%x x%x x%x x%x\n",
3318 la->eventTag, phba->fc_eventTag,
76a95d75
JS		 3319 bf_get(lpfc_mbx_read_top_alpa_granted,
3320 la),
3321 bf_get(lpfc_mbx_read_top_link_spd, la),
e8b62011 3322 phba->alpa_map[0]);
5b8bd0c9
JS		 3323 } else {
3324 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 3325 "1303 Link Up Event x%x received "
84774a4d 3326 "Data: x%x x%x x%x x%x x%x x%x %d\n",
e8b62011 3327 la->eventTag, phba->fc_eventTag,
76a95d75
JS		 3328 bf_get(lpfc_mbx_read_top_alpa_granted,
3329 la),
3330 bf_get(lpfc_mbx_read_top_link_spd, la),
84774a4d 3331 phba->alpa_map[0],
76a95d75
JS		 3332 bf_get(lpfc_mbx_read_top_mm, la),
3333 bf_get(lpfc_mbx_read_top_fa, la),
84774a4d 3334 phba->wait_4_mlo_maint_flg);
5b8bd0c9 3335 }
92d7f7b0 3336 lpfc_mbx_process_link_up(phba, la);
76a95d75
JS		 3337 } else if (bf_get(lpfc_mbx_read_top_att_type, la) ==
3338 LPFC_ATT_LINK_DOWN) {
dea3101e 3339 phba->fc_stat.LinkDown++;
1b51197d 3340 if (phba->link_flag & LS_LOOPBACK_MODE)
3163f725
JS		 3341 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3342 "1308 Link Down Event in loop back mode "
3343 "x%x received "
3344 "Data: x%x x%x x%x\n",
3345 la->eventTag, phba->fc_eventTag,
3346 phba->pport->port_state, vport->fc_flag);
1b51197d 3347 else
3163f725 3348 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 3349 "1305 Link Down Event x%x received "
84774a4d
JS		 3350 "Data: x%x x%x x%x x%x x%x\n",
3351 la->eventTag, phba->fc_eventTag,
3352 phba->pport->port_state, vport->fc_flag,
76a95d75
JS		 3353 bf_get(lpfc_mbx_read_top_mm, la),
3354 bf_get(lpfc_mbx_read_top_fa, la));
84774a4d
JS		 3355 lpfc_mbx_issue_link_down(phba);
3356 }
be0c0080
JS		 3357 if ((phba->sli.sli_flag & LPFC_MENLO_MAINT) &&
3358 ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP))) {
84774a4d
JS		 3359 if (phba->link_state != LPFC_LINK_DOWN) {
3360 phba->fc_stat.LinkDown++;
3361 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3362 "1312 Link Down Event x%x received "
dea3101e 3363 "Data: x%x x%x x%x\n",
e8b62011 3364 la->eventTag, phba->fc_eventTag,
2e0fef85 3365 phba->pport->port_state, vport->fc_flag);
84774a4d
JS		 3366 lpfc_mbx_issue_link_down(phba);
3367 } else
3368 lpfc_enable_la(phba);
3369
3370 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3371 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3372 "Data: x%x x%x x%x\n",
3373 la->eventTag, phba->fc_eventTag,
3374 phba->pport->port_state, vport->fc_flag);
3375 /*
3376 * The cmnd that triggered this will be waiting for this
3377 * signal.
3378 */
3379 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3380 if (phba->wait_4_mlo_maint_flg) {
3381 phba->wait_4_mlo_maint_flg = 0;
3382 wake_up_interruptible(&phba->wait_4_mlo_m_q);
3163f725 3383 }
84774a4d
JS		 3384 }
3385
be0c0080
JS		 3386 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3387 bf_get(lpfc_mbx_read_top_fa, la)) {
3388 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
84774a4d
JS		 3389 lpfc_issue_clear_la(phba, vport);
3390 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
76a95d75
JS		 3391 "1311 fa %d\n",
3392 bf_get(lpfc_mbx_read_top_fa, la));
dea3101e 3393 }
3394
76a95d75 3395lpfc_mbx_cmpl_read_topology_free_mbuf:
dea3101e 3396 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3397 kfree(mp);
3398 mempool_free(pmb, phba->mbox_mem_pool);
3399 return;
3400}
3401
3402/*
3403 * This routine handles processing a REG_LOGIN mailbox
3404 * command upon completion. It is setup in the LPFC_MBOXQ
3405 * as the completion routine when the command is
3406 * handed off to the SLI layer.
3407 */
3408void
2e0fef85 3409lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 3410{
2e0fef85 3411 struct lpfc_vport *vport = pmb->vport;
92d7f7b0 3412 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2e0fef85 3413 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
ffc95493 3414 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 3415
dea3101e 3416 pmb->context1 = NULL;
d439d286 3417 pmb->context2 = NULL;
dea3101e 3418
be6bb941
JS		 3419 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3420 "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n",
3421 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3422 atomic_read(&ndlp->kref.refcount),
3423 ndlp->nlp_usg_map, ndlp);
ffc95493
JS		 3424 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
3425 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3426
4042629e
JS		 3427 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
3428 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
ffc95493
JS		 3429 /* We rcvd a rscn after issuing this
3430 * mbox reg login, we may have cycled
3431 * back through the state and be
3432 * back at reg login state so this
3433 * mbox needs to be ignored becase
3434 * there is another reg login in
25985edc 3435 * process.
ffc95493
JS		 3436 */
3437 spin_lock_irq(shost->host_lock);
3438 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
3439 spin_unlock_irq(shost->host_lock);
ffc95493
JS		 3440 } else
3441 /* Good status, call state machine */
3442 lpfc_disc_state_machine(vport, ndlp, pmb,
3443 NLP_EVT_CMPL_REG_LOGIN);
3444
dea3101e 3445 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3446 kfree(mp);
2e0fef85 3447 mempool_free(pmb, phba->mbox_mem_pool);
fa4066b6
JS		 3448 /* decrement the node reference count held for this callback
3449 * function.
3450 */
329f9bc7 3451 lpfc_nlp_put(ndlp);
dea3101e 3452
3453 return;
3454}
3455
92d7f7b0
JS		 3456static void
3457lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3458{
04c68496 3459 MAILBOX_t *mb = &pmb->u.mb;
92d7f7b0
JS		 3460 struct lpfc_vport *vport = pmb->vport;
3461 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3462
3463 switch (mb->mbxStatus) {
3464 case 0x0011:
3465 case 0x0020:
e8b62011
JS		 3466 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3467 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3468 mb->mbxStatus);
92d7f7b0 3469 break;
78730cfe
JS		 3470 /* If VPI is busy, reset the HBA */
3471 case 0x9700:
3472 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3473 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3474 vport->vpi, mb->mbxStatus);
3475 if (!(phba->pport->load_flag & FC_UNLOADING))
3476 lpfc_workq_post_event(phba, NULL, NULL,
3477 LPFC_EVT_RESET_HBA);
92d7f7b0 3478 }
72100cc4 3479 spin_lock_irq(shost->host_lock);
c868595d 3480 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
1987807d 3481 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
72100cc4 3482 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS		 3483 vport->unreg_vpi_cmpl = VPORT_OK;
3484 mempool_free(pmb, phba->mbox_mem_pool);
1151e3ec 3485 lpfc_cleanup_vports_rrqs(vport, NULL);
92d7f7b0
JS		 3486 /*
3487 * This shost reference might have been taken at the beginning of
3488 * lpfc_vport_delete()
3489 */
1c6f4ef5 3490 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
92d7f7b0
JS		 3491 scsi_host_put(shost);
3492}
3493
d7c255b2 3494int
92d7f7b0
JS		 3495lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
3496{
3497 struct lpfc_hba *phba = vport->phba;
3498 LPFC_MBOXQ_t *mbox;
3499 int rc;
3500
3501 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3502 if (!mbox)
d7c255b2 3503 return 1;
92d7f7b0
JS		 3504
3505 lpfc_unreg_vpi(phba, vport->vpi, mbox);
3506 mbox->vport = vport;
3507 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
0b727fea 3508 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
92d7f7b0 3509 if (rc == MBX_NOT_FINISHED) {
e8b62011
JS		 3510 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3511 "1800 Could not issue unreg_vpi\n");
92d7f7b0
JS		 3512 mempool_free(mbox, phba->mbox_mem_pool);
3513 vport->unreg_vpi_cmpl = VPORT_ERROR;
d7c255b2 3514 return rc;
92d7f7b0 3515 }
d7c255b2 3516 return 0;
92d7f7b0
JS		 3517}
3518
3519static void
3520lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3521{
3522 struct lpfc_vport *vport = pmb->vport;
3523 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
04c68496 3524 MAILBOX_t *mb = &pmb->u.mb;
92d7f7b0
JS		 3525
3526 switch (mb->mbxStatus) {
3527 case 0x0011:
3528 case 0x9601:
3529 case 0x9602:
e8b62011
JS		 3530 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3531 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3532 mb->mbxStatus);
92d7f7b0
JS		 3533 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3534 spin_lock_irq(shost->host_lock);
3535 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
3536 spin_unlock_irq(shost->host_lock);
3537 vport->fc_myDID = 0;
3538 goto out;
3539 }
92d7f7b0 3540
72100cc4 3541 spin_lock_irq(shost->host_lock);
c868595d 3542 vport->vpi_state |= LPFC_VPI_REGISTERED;
695a814e 3543 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
72100cc4 3544 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS		 3545 vport->num_disc_nodes = 0;
3546 /* go thru NPR list and issue ELS PLOGIs */
3547 if (vport->fc_npr_cnt)
3548 lpfc_els_disc_plogi(vport);
3549
3550 if (!vport->num_disc_nodes) {
3551 spin_lock_irq(shost->host_lock);
3552 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3553 spin_unlock_irq(shost->host_lock);
3554 lpfc_can_disctmo(vport);
3555 }
3556 vport->port_state = LPFC_VPORT_READY;
3557
3558out:
3559 mempool_free(pmb, phba->mbox_mem_pool);
3560 return;
3561}
3562
21e9a0a5
JS		 3563/**
3564 * lpfc_create_static_vport - Read HBA config region to create static vports.
3565 * @phba: pointer to lpfc hba data structure.
3566 *
3567 * This routine issue a DUMP mailbox command for config region 22 to get
3568 * the list of static vports to be created. The function create vports
3569 * based on the information returned from the HBA.
3570 **/
3571void
3572lpfc_create_static_vport(struct lpfc_hba *phba)
3573{
3574 LPFC_MBOXQ_t *pmb = NULL;
3575 MAILBOX_t *mb;
3576 struct static_vport_info *vport_info;
cdcc2343 3577 int mbx_wait_rc = 0, i;
21e9a0a5
JS		 3578 struct fc_vport_identifiers vport_id;
3579 struct fc_vport *new_fc_vport;
3580 struct Scsi_Host *shost;
3581 struct lpfc_vport *vport;
3582 uint16_t offset = 0;
3583 uint8_t *vport_buff;
1c6834a7
JS		 3584 struct lpfc_dmabuf *mp;
3585 uint32_t byte_count = 0;
21e9a0a5
JS		 3586
3587 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3588 if (!pmb) {
3589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3590 "0542 lpfc_create_static_vport failed to"
3591 " allocate mailbox memory\n");
3592 return;
3593 }
cdcc2343 3594 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
21e9a0a5
JS		 3595 mb = &pmb->u.mb;
3596
3597 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
3598 if (!vport_info) {
3599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3600 "0543 lpfc_create_static_vport failed to"
3601 " allocate vport_info\n");
3602 mempool_free(pmb, phba->mbox_mem_pool);
3603 return;
3604 }
3605
3606 vport_buff = (uint8_t *) vport_info;
3607 do {
cdcc2343
JS		 3608 /* free dma buffer from previous round */
3609 if (pmb->context1) {
3610 mp = (struct lpfc_dmabuf *)pmb->context1;
3611 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3612 kfree(mp);
3613 }
1c6834a7
JS		 3614 if (lpfc_dump_static_vport(phba, pmb, offset))
3615 goto out;
3616
21e9a0a5 3617 pmb->vport = phba->pport;
cdcc2343
JS		 3618 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,
3619 LPFC_MBOX_TMO);
21e9a0a5 3620
cdcc2343 3621 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {
21e9a0a5
JS		 3622 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3623 "0544 lpfc_create_static_vport failed to"
3624 " issue dump mailbox command ret 0x%x "
3625 "status 0x%x\n",
cdcc2343 3626 mbx_wait_rc, mb->mbxStatus);
21e9a0a5
JS		 3627 goto out;
3628 }
3629
1c6834a7
JS		 3630 if (phba->sli_rev == LPFC_SLI_REV4) {
3631 byte_count = pmb->u.mqe.un.mb_words[5];
cdcc2343 3632 mp = (struct lpfc_dmabuf *)pmb->context1;
1c6834a7
JS		 3633 if (byte_count > sizeof(struct static_vport_info) -
3634 offset)
3635 byte_count = sizeof(struct static_vport_info)
3636 - offset;
3637 memcpy(vport_buff + offset, mp->virt, byte_count);
3638 offset += byte_count;
3639 } else {
3640 if (mb->un.varDmp.word_cnt >
3641 sizeof(struct static_vport_info) - offset)
3642 mb->un.varDmp.word_cnt =
3643 sizeof(struct static_vport_info)
3644 - offset;
3645 byte_count = mb->un.varDmp.word_cnt;
3646 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
3647 vport_buff + offset,
3648 byte_count);
3649
3650 offset += byte_count;
3651 }
21e9a0a5 3652
1c6834a7 3653 } while (byte_count &&
21e9a0a5
JS		 3654 offset < sizeof(struct static_vport_info));
3655
3656
3657 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
3658 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
3659 != VPORT_INFO_REV)) {
3660 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3661 "0545 lpfc_create_static_vport bad"
3662 " information header 0x%x 0x%x\n",
3663 le32_to_cpu(vport_info->signature),
3664 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
3665
3666 goto out;
3667 }
3668
3669 shost = lpfc_shost_from_vport(phba->pport);
3670
3671 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
3672 memset(&vport_id, 0, sizeof(vport_id));
3673 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
3674 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
3675 if (!vport_id.port_name || !vport_id.node_name)
3676 continue;
3677
3678 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
3679 vport_id.vport_type = FC_PORTTYPE_NPIV;
3680 vport_id.disable = false;
3681 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
3682
3683 if (!new_fc_vport) {
3684 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3685 "0546 lpfc_create_static_vport failed to"
e4e74273 3686 " create vport\n");
21e9a0a5
JS		 3687 continue;
3688 }
3689
3690 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
3691 vport->vport_flag |= STATIC_VPORT;
3692 }
3693
3694out:
21e9a0a5 3695 kfree(vport_info);
cdcc2343
JS		 3696 if (mbx_wait_rc != MBX_TIMEOUT) {
3697 if (pmb->context1) {
3698 mp = (struct lpfc_dmabuf *)pmb->context1;
1c6834a7
JS		 3699 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3700 kfree(mp);
3701 }
21e9a0a5 3702 mempool_free(pmb, phba->mbox_mem_pool);
1c6834a7 3703 }
21e9a0a5
JS		 3704
3705 return;
3706}
3707
dea3101e 3708/*
3709 * This routine handles processing a Fabric REG_LOGIN mailbox
3710 * command upon completion. It is setup in the LPFC_MBOXQ
3711 * as the completion routine when the command is
3712 * handed off to the SLI layer.
3713 */
3714void
2e0fef85 3715lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 3716{
92d7f7b0 3717 struct lpfc_vport *vport = pmb->vport;
21e9a0a5 3718 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85 3719 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
92d7f7b0 3720 struct lpfc_nodelist *ndlp;
df9e1b59 3721 struct Scsi_Host *shost;
dea3101e 3722
549e55cd 3723 ndlp = (struct lpfc_nodelist *) pmb->context2;
329f9bc7
JS		 3724 pmb->context1 = NULL;
3725 pmb->context2 = NULL;
d439d286 3726
dea3101e 3727 if (mb->mbxStatus) {
21e9a0a5
JS		 3728 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3729 "0258 Register Fabric login error: 0x%x\n",
3730 mb->mbxStatus);
dea3101e 3731 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3732 kfree(mp);
329f9bc7 3733 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 3734
76a95d75 3735 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
92d7f7b0
JS		 3736 /* FLOGI failed, use loop map to make discovery list */
3737 lpfc_disc_list_loopmap(vport);
3738
3739 /* Start discovery */
3740 lpfc_disc_start(vport);
e47c9093
JS		 3741 /* Decrement the reference count to ndlp after the
3742 * reference to the ndlp are done.
3743 */
3744 lpfc_nlp_put(ndlp);
92d7f7b0
JS		 3745 return;
3746 }
3747
3748 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e47c9093
JS		 3749 /* Decrement the reference count to ndlp after the reference
3750 * to the ndlp are done.
3751 */
3752 lpfc_nlp_put(ndlp);
dea3101e 3753 return;
3754 }
3755
6d368e53
JS		 3756 if (phba->sli_rev < LPFC_SLI_REV4)
3757 ndlp->nlp_rpi = mb->un.varWords[0];
4042629e 3758 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
dea3101e 3759 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 3760 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 3761
2e0fef85 3762 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
4b40c59e
JS		 3763 /* when physical port receive logo donot start
3764 * vport discovery */
3765 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
3766 lpfc_start_fdiscs(phba);
df9e1b59
JS		 3767 else {
3768 shost = lpfc_shost_from_vport(vport);
3769 spin_lock_irq(shost->host_lock);
4b40c59e 3770 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
df9e1b59
JS		 3771 spin_unlock_irq(shost->host_lock);
3772 }
92d7f7b0 3773 lpfc_do_scr_ns_plogi(phba, vport);
dea3101e 3774 }
3775
3776 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3777 kfree(mp);
329f9bc7 3778 mempool_free(pmb, phba->mbox_mem_pool);
e47c9093
JS		 3779
3780 /* Drop the reference count from the mbox at the end after
3781 * all the current reference to the ndlp have been done.
3782 */
3783 lpfc_nlp_put(ndlp);
dea3101e 3784 return;
3785}
3786
3787/*
3788 * This routine handles processing a NameServer REG_LOGIN mailbox
3789 * command upon completion. It is setup in the LPFC_MBOXQ
3790 * as the completion routine when the command is
3791 * handed off to the SLI layer.
3792 */
3793void
2e0fef85 3794lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 3795{
21e9a0a5 3796 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85
JS		 3797 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3798 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3799 struct lpfc_vport *vport = pmb->vport;
dea3101e 3800
d439d286
JS		 3801 pmb->context1 = NULL;
3802 pmb->context2 = NULL;
3803
dea3101e 3804 if (mb->mbxStatus) {
92d7f7b0 3805out:
21e9a0a5
JS		 3806 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3807 "0260 Register NameServer error: 0x%x\n",
3808 mb->mbxStatus);
fa4066b6
JS		 3809 /* decrement the node reference count held for this
3810 * callback function.
3811 */
329f9bc7 3812 lpfc_nlp_put(ndlp);
dea3101e 3813 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3814 kfree(mp);
de0c5b32 3815 mempool_free(pmb, phba->mbox_mem_pool);
87af33fe
JS		 3816
3817 /* If no other thread is using the ndlp, free it */
3818 lpfc_nlp_not_used(ndlp);
dea3101e 3819
76a95d75 3820 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
92d7f7b0
JS		 3821 /*
3822 * RegLogin failed, use loop map to make discovery
3823 * list
3824 */
3825 lpfc_disc_list_loopmap(vport);
dea3101e 3826
92d7f7b0
JS		 3827 /* Start discovery */
3828 lpfc_disc_start(vport);
3829 return;
3830 }
3831 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
dea3101e 3832 return;
3833 }
3834
6d368e53
JS		 3835 if (phba->sli_rev < LPFC_SLI_REV4)
3836 ndlp->nlp_rpi = mb->un.varWords[0];
4042629e 3837 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
dea3101e 3838 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 3839 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
be6bb941
JS		 3840 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3841 "0003 rpi:%x DID:%x flg:%x %d map%x %p\n",
3842 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3843 atomic_read(&ndlp->kref.refcount),
3844 ndlp->nlp_usg_map, ndlp);
dea3101e 3845
2e0fef85
JS		 3846 if (vport->port_state < LPFC_VPORT_READY) {
3847 /* Link up discovery requires Fabric registration. */
92d7f7b0
JS		 3848 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
3849 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
3850 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
3851 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
e26422fe 3852 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0);
92d7f7b0
JS		 3853
3854 /* Issue SCR just before NameServer GID_FT Query */
3855 lpfc_issue_els_scr(vport, SCR_DID, 0);
dea3101e 3856 }
3857
2e0fef85 3858 vport->fc_ns_retry = 0;
dea3101e 3859 /* Good status, issue CT Request to NameServer */
92d7f7b0 3860 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
dea3101e 3861 /* Cannot issue NameServer Query, so finish up discovery */
92d7f7b0 3862 goto out;
dea3101e 3863 }
3864
fa4066b6
JS		 3865 /* decrement the node reference count held for this
3866 * callback function.
3867 */
329f9bc7 3868 lpfc_nlp_put(ndlp);
dea3101e 3869 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3870 kfree(mp);
2e0fef85 3871 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 3872
3873 return;
3874}
3875
3876static void
2e0fef85 3877lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 3878{
2e0fef85
JS		 3879 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3880 struct fc_rport *rport;
dea3101e 3881 struct lpfc_rport_data *rdata;
3882 struct fc_rport_identifiers rport_ids;
2e0fef85 3883 struct lpfc_hba *phba = vport->phba;
dea3101e 3884
3885 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 3886 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
3887 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e 3888 rport_ids.port_id = ndlp->nlp_DID;
3889 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e 3890
329f9bc7
JS		 3891 /*
3892 * We leave our node pointer in rport->dd_data when we unregister a
3893 * FCP target port. But fc_remote_port_add zeros the space to which
3894 * rport->dd_data points. So, if we're reusing a previously
3895 * registered port, drop the reference that we took the last time we
3896 * registered the port.
3897 */
466e840b
JS		 3898 rport = ndlp->rport;
3899 if (rport) {
3900 rdata = rport->dd_data;
3901 /* break the link before dropping the ref */
3902 ndlp->rport = NULL;
3903 if (rdata && rdata->pnode == ndlp)
3904 lpfc_nlp_put(ndlp);
3905 rdata->pnode = NULL;
3906 /* drop reference for earlier registeration */
3907 put_device(&rport->dev);
3908 }
858c9f6c
JS		 3909
3910 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
3911 "rport add: did:x%x flg:x%x type x%x",
3912 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3913
9589b062
JS		 3914 /* Don't add the remote port if unloading. */
3915 if (vport->load_flag & FC_UNLOADING)
3916 return;
3917
2e0fef85 3918 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
329f9bc7 3919 if (!rport || !get_device(&rport->dev)) {
dea3101e 3920 dev_printk(KERN_WARNING, &phba->pcidev->dev,
3921 "Warning: fc_remote_port_add failed\n");
3922 return;
3923 }
3924
3925 /* initialize static port data */
3926 rport->maxframe_size = ndlp->nlp_maxframe;
3927 rport->supported_classes = ndlp->nlp_class_sup;
dea3101e 3928 rdata = rport->dd_data;
329f9bc7 3929 rdata->pnode = lpfc_nlp_get(ndlp);
23dc04f1
JSEC		 3930
3931 if (ndlp->nlp_type & NLP_FCP_TARGET)
3932 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
3933 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
3934 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
3935
23dc04f1
JSEC		 3936 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
3937 fc_remote_port_rolechg(rport, rport_ids.roles);
3938
34f5ad8b
JS		 3939 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3940 "3183 rport register x%06x, rport %p role x%x\n",
3941 ndlp->nlp_DID, rport, rport_ids.roles);
3942
071fbd3d 3943 if ((rport->scsi_target_id != -1) &&
92d7f7b0 3944 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
071fbd3d
JS		 3945 ndlp->nlp_sid = rport->scsi_target_id;
3946 }
19a7b4ae
JSEC		 3947 return;
3948}
3949
3950static void
2e0fef85 3951lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
19a7b4ae
JSEC		 3952{
3953 struct fc_rport *rport = ndlp->rport;
c01f3208 3954
858c9f6c
JS		 3955 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
3956 "rport delete: did:x%x flg:x%x type x%x",
3957 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3958
34f5ad8b
JS		 3959 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3960 "3184 rport unregister x%06x, rport %p\n",
3961 ndlp->nlp_DID, rport);
3962
19a7b4ae 3963 fc_remote_port_delete(rport);
dea3101e 3964
3965 return;
3966}
3967
de0c5b32 3968static void
2e0fef85 3969lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
dea3101e 3970{
2e0fef85
JS		 3971 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3972
3973 spin_lock_irq(shost->host_lock);
de0c5b32
JS		 3974 switch (state) {
3975 case NLP_STE_UNUSED_NODE:
2e0fef85 3976 vport->fc_unused_cnt += count;
de0c5b32
JS		 3977 break;
3978 case NLP_STE_PLOGI_ISSUE:
2e0fef85 3979 vport->fc_plogi_cnt += count;
de0c5b32
JS		 3980 break;
3981 case NLP_STE_ADISC_ISSUE:
2e0fef85 3982 vport->fc_adisc_cnt += count;
dea3101e 3983 break;
de0c5b32 3984 case NLP_STE_REG_LOGIN_ISSUE:
2e0fef85 3985 vport->fc_reglogin_cnt += count;
de0c5b32
JS		 3986 break;
3987 case NLP_STE_PRLI_ISSUE:
2e0fef85 3988 vport->fc_prli_cnt += count;
de0c5b32
JS		 3989 break;
3990 case NLP_STE_UNMAPPED_NODE:
2e0fef85 3991 vport->fc_unmap_cnt += count;
de0c5b32
JS		 3992 break;
3993 case NLP_STE_MAPPED_NODE:
2e0fef85 3994 vport->fc_map_cnt += count;
de0c5b32
JS		 3995 break;
3996 case NLP_STE_NPR_NODE:
646a2dd7
JS		 3997 if (vport->fc_npr_cnt == 0 && count == -1)
3998 vport->fc_npr_cnt = 0;
3999 else
4000 vport->fc_npr_cnt += count;
de0c5b32
JS		 4001 break;
4002 }
2e0fef85 4003 spin_unlock_irq(shost->host_lock);
de0c5b32 4004}
66a9ed66 4005
de0c5b32 4006static void
2e0fef85 4007lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
de0c5b32
JS		 4008 int old_state, int new_state)
4009{
2e0fef85
JS		 4010 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4011
de0c5b32 4012 if (new_state == NLP_STE_UNMAPPED_NODE) {
de0c5b32
JS		 4013 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4014 ndlp->nlp_type |= NLP_FC_NODE;
4015 }
4016 if (new_state == NLP_STE_MAPPED_NODE)
4017 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
4018 if (new_state == NLP_STE_NPR_NODE)
4019 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
4020
4021 /* Transport interface */
4022 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
4023 old_state == NLP_STE_UNMAPPED_NODE)) {
2e0fef85
JS		 4024 vport->phba->nport_event_cnt++;
4025 lpfc_unregister_remote_port(ndlp);
de0c5b32 4026 }
dea3101e 4027
de0c5b32
JS		 4028 if (new_state == NLP_STE_MAPPED_NODE ||
4029 new_state == NLP_STE_UNMAPPED_NODE) {
2e0fef85 4030 vport->phba->nport_event_cnt++;
858c9f6c
JS		 4031 /*
4032 * Tell the fc transport about the port, if we haven't
4033 * already. If we have, and it's a scsi entity, be
4034 * sure to unblock any attached scsi devices
4035 */
4036 lpfc_register_remote_port(vport, ndlp);
de0c5b32 4037 }
ea2151b4
JS		 4038 if ((new_state == NLP_STE_MAPPED_NODE) &&
4039 (vport->stat_data_enabled)) {
4040 /*
4041 * A new target is discovered, if there is no buffer for
4042 * statistical data collection allocate buffer.
4043 */
4044 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
4045 sizeof(struct lpfc_scsicmd_bkt),
4046 GFP_KERNEL);
4047
4048 if (!ndlp->lat_data)
4049 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
4050 "0286 lpfc_nlp_state_cleanup failed to "
4051 "allocate statistical data buffer DID "
4052 "0x%x\n", ndlp->nlp_DID);
4053 }
858c9f6c
JS		 4054 /*
4055 * if we added to Mapped list, but the remote port
4056 * registration failed or assigned a target id outside
4057 * our presentable range - move the node to the
4058 * Unmapped List
4059 */
de0c5b32
JS		 4060 if (new_state == NLP_STE_MAPPED_NODE &&
4061 (!ndlp->rport ||
4062 ndlp->rport->scsi_target_id == -1 ||
4063 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
2e0fef85 4064 spin_lock_irq(shost->host_lock);
de0c5b32 4065 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
2e0fef85
JS		 4066 spin_unlock_irq(shost->host_lock);
4067 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 4068 }
de0c5b32
JS		 4069}
4070
685f0bf7
JS		 4071static char *
4072lpfc_nlp_state_name(char *buffer, size_t size, int state)
4073{
4074 static char *states[] = {
4075 [NLP_STE_UNUSED_NODE] = "UNUSED",
4076 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
4077 [NLP_STE_ADISC_ISSUE] = "ADISC",
4078 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
4079 [NLP_STE_PRLI_ISSUE] = "PRLI",
086a345f 4080 [NLP_STE_LOGO_ISSUE] = "LOGO",
685f0bf7
JS		 4081 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
4082 [NLP_STE_MAPPED_NODE] = "MAPPED",
4083 [NLP_STE_NPR_NODE] = "NPR",
4084 };
4085
311464ec 4086 if (state < NLP_STE_MAX_STATE && states[state])
685f0bf7
JS		 4087 strlcpy(buffer, states[state], size);
4088 else
4089 snprintf(buffer, size, "unknown (%d)", state);
4090 return buffer;
4091}
4092
de0c5b32 4093void
2e0fef85
JS		 4094lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4095 int state)
de0c5b32 4096{
2e0fef85 4097 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
de0c5b32 4098 int old_state = ndlp->nlp_state;
685f0bf7 4099 char name1[16], name2[16];
de0c5b32 4100
e8b62011
JS		 4101 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4102 "0904 NPort state transition x%06x, %s -> %s\n",
4103 ndlp->nlp_DID,
4104 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
4105 lpfc_nlp_state_name(name2, sizeof(name2), state));
858c9f6c
JS		 4106
4107 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4108 "node statechg did:x%x old:%d ste:%d",
4109 ndlp->nlp_DID, old_state, state);
4110
de0c5b32 4111 if (old_state == NLP_STE_NPR_NODE &&
de0c5b32 4112 state != NLP_STE_NPR_NODE)
2e0fef85 4113 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32
JS		 4114 if (old_state == NLP_STE_UNMAPPED_NODE) {
4115 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
4116 ndlp->nlp_type &= ~NLP_FC_NODE;
4117 }
4118
685f0bf7 4119 if (list_empty(&ndlp->nlp_listp)) {
2e0fef85
JS		 4120 spin_lock_irq(shost->host_lock);
4121 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4122 spin_unlock_irq(shost->host_lock);
685f0bf7 4123 } else if (old_state)
2e0fef85 4124 lpfc_nlp_counters(vport, old_state, -1);
de0c5b32
JS		 4125
4126 ndlp->nlp_state = state;
2e0fef85
JS		 4127 lpfc_nlp_counters(vport, state, 1);
4128 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
de0c5b32
JS		 4129}
4130
e47c9093
JS		 4131void
4132lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4133{
4134 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4135
4136 if (list_empty(&ndlp->nlp_listp)) {
4137 spin_lock_irq(shost->host_lock);
4138 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4139 spin_unlock_irq(shost->host_lock);
4140 }
4141}
4142
de0c5b32 4143void
2e0fef85 4144lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 4145{
2e0fef85
JS		 4146 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4147
0d2b6b83 4148 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32 4149 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2e0fef85
JS		 4150 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4151 spin_lock_irq(shost->host_lock);
685f0bf7 4152 list_del_init(&ndlp->nlp_listp);
2e0fef85 4153 spin_unlock_irq(shost->host_lock);
858c9f6c 4154 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
e47c9093
JS		 4155 NLP_STE_UNUSED_NODE);
4156}
4157
4d9db01e 4158static void
e47c9093
JS		 4159lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4160{
0d2b6b83 4161 lpfc_cancel_retry_delay_tmo(vport, ndlp);
e47c9093
JS		 4162 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4163 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4164 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4165 NLP_STE_UNUSED_NODE);
4166}
109f6ed0 4167/**
3621a710 4168 * lpfc_initialize_node - Initialize all fields of node object
109f6ed0
JS		 4169 * @vport: Pointer to Virtual Port object.
4170 * @ndlp: Pointer to FC node object.
4171 * @did: FC_ID of the node.
a257bf90
JS		 4172 *
4173 * This function is always called when node object need to be initialized.
4174 * It initializes all the fields of the node object. Although the reference
4175 * to phba from @ndlp can be obtained indirectly through it's reference to
4176 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4177 * to the life-span of the @ndlp might go beyond the existence of @vport as
4178 * the final release of ndlp is determined by its reference count. And, the
4179 * operation on @ndlp needs the reference to phba.
109f6ed0
JS		 4180 **/
4181static inline void
4182lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4183 uint32_t did)
4184{
4185 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
4186 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
4187 init_timer(&ndlp->nlp_delayfunc);
4188 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
4189 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
4190 ndlp->nlp_DID = did;
4191 ndlp->vport = vport;
a257bf90 4192 ndlp->phba = vport->phba;
109f6ed0
JS		 4193 ndlp->nlp_sid = NLP_NO_SID;
4194 kref_init(&ndlp->kref);
4195 NLP_INT_NODE_ACT(ndlp);
4196 atomic_set(&ndlp->cmd_pending, 0);
7dc517df 4197 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
109f6ed0 4198}
e47c9093
JS		 4199
4200struct lpfc_nodelist *
4201lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4202 int state)
4203{
4204 struct lpfc_hba *phba = vport->phba;
4205 uint32_t did;
4206 unsigned long flags;
cff261f6 4207 unsigned long *active_rrqs_xri_bitmap = NULL;
e47c9093
JS		 4208
4209 if (!ndlp)
4210 return NULL;
4211
4212 spin_lock_irqsave(&phba->ndlp_lock, flags);
4213 /* The ndlp should not be in memory free mode */
4214 if (NLP_CHK_FREE_REQ(ndlp)) {
4215 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4216 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4217 "0277 lpfc_enable_node: ndlp:x%p "
4218 "usgmap:x%x refcnt:%d\n",
4219 (void *)ndlp, ndlp->nlp_usg_map,
4220 atomic_read(&ndlp->kref.refcount));
4221 return NULL;
4222 }
4223 /* The ndlp should not already be in active mode */
4224 if (NLP_CHK_NODE_ACT(ndlp)) {
4225 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4226 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4227 "0278 lpfc_enable_node: ndlp:x%p "
4228 "usgmap:x%x refcnt:%d\n",
4229 (void *)ndlp, ndlp->nlp_usg_map,
4230 atomic_read(&ndlp->kref.refcount));
4231 return NULL;
4232 }
4233
4234 /* Keep the original DID */
4235 did = ndlp->nlp_DID;
cff261f6
JS		 4236 if (phba->sli_rev == LPFC_SLI_REV4)
4237 active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap;
e47c9093
JS		 4238
4239 /* re-initialize ndlp except of ndlp linked list pointer */
4240 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
4241 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
109f6ed0 4242 lpfc_initialize_node(vport, ndlp, did);
e47c9093 4243
cff261f6
JS		 4244 if (phba->sli_rev == LPFC_SLI_REV4)
4245 ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap;
4246
e47c9093 4247 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
be6bb941 4248 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
725dd399 4249 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba);
be6bb941
JS		 4250 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4251 "0008 rpi:%x DID:%x flg:%x refcnt:%d "
4252 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
4253 ndlp->nlp_flag,
4254 atomic_read(&ndlp->kref.refcount),
4255 ndlp->nlp_usg_map, ndlp);
4256 }
725dd399 4257
e47c9093
JS		 4258
4259 if (state != NLP_STE_UNUSED_NODE)
4260 lpfc_nlp_set_state(vport, ndlp, state);
4261
4262 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4263 "node enable: did:x%x",
4264 ndlp->nlp_DID, 0, 0);
4265 return ndlp;
de0c5b32
JS		 4266}
4267
4268void
2e0fef85 4269lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 4270{
87af33fe 4271 /*
fa4066b6 4272 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
87af33fe 4273 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
fa4066b6
JS		 4274 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4275 * until ALL other outstanding threads have completed. We check
4276 * that the ndlp not already in the UNUSED state before we proceed.
87af33fe 4277 */
fa4066b6
JS		 4278 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4279 return;
51ef4c26 4280 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
be6bb941 4281 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
1151e3ec 4282 lpfc_cleanup_vports_rrqs(vport, ndlp);
be6bb941 4283 lpfc_unreg_rpi(vport, ndlp);
be6bb941 4284 }
0290217a
JS		 4285
4286 lpfc_nlp_put(ndlp);
98c9ea5c 4287 return;
dea3101e 4288}
4289
4290/*
4291 * Start / ReStart rescue timer for Discovery / RSCN handling
4292 */
4293void
2e0fef85 4294lpfc_set_disctmo(struct lpfc_vport *vport)
dea3101e 4295{
2e0fef85
JS		 4296 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4297 struct lpfc_hba *phba = vport->phba;
dea3101e 4298 uint32_t tmo;
4299
2e0fef85 4300 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
025dfdaf 4301 /* For FAN, timeout should be greater than edtov */
c9f8735b
JW		 4302 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
4303 } else {
025dfdaf 4304 /* Normal discovery timeout should be > than ELS/CT timeout
c9f8735b
JW		 4305 * FC spec states we need 3 * ratov for CT requests
4306 */
4307 tmo = ((phba->fc_ratov * 3) + 3);
4308 }
dea3101e 4309
858c9f6c
JS		 4310
4311 if (!timer_pending(&vport->fc_disctmo)) {
4312 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4313 "set disc timer: tmo:x%x state:x%x flg:x%x",
4314 tmo, vport->port_state, vport->fc_flag);
4315 }
4316
256ec0d0 4317 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));
2e0fef85
JS		 4318 spin_lock_irq(shost->host_lock);
4319 vport->fc_flag |= FC_DISC_TMO;
4320 spin_unlock_irq(shost->host_lock);
dea3101e 4321
4322 /* Start Discovery Timer state <hba_state> */
e8b62011
JS		 4323 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4324 "0247 Start Discovery Timer state x%x "
4325 "Data: x%x x%lx x%x x%x\n",
4326 vport->port_state, tmo,
4327 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
4328 vport->fc_adisc_cnt);
dea3101e 4329
4330 return;
4331}
4332
4333/*
4334 * Cancel rescue timer for Discovery / RSCN handling
4335 */
4336int
2e0fef85 4337lpfc_can_disctmo(struct lpfc_vport *vport)
dea3101e 4338{
2e0fef85 4339 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85
JS		 4340 unsigned long iflags;
4341
858c9f6c
JS		 4342 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4343 "can disc timer: state:x%x rtry:x%x flg:x%x",
4344 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
4345
dea3101e 4346 /* Turn off discovery timer if its running */
2e0fef85
JS		 4347 if (vport->fc_flag & FC_DISC_TMO) {
4348 spin_lock_irqsave(shost->host_lock, iflags);
4349 vport->fc_flag &= ~FC_DISC_TMO;
4350 spin_unlock_irqrestore(shost->host_lock, iflags);
4351 del_timer_sync(&vport->fc_disctmo);
4352 spin_lock_irqsave(&vport->work_port_lock, iflags);
4353 vport->work_port_events &= ~WORKER_DISC_TMO;
4354 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
dea3101e 4355 }
4356
4357 /* Cancel Discovery Timer state <hba_state> */
e8b62011
JS		 4358 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4359 "0248 Cancel Discovery Timer state x%x "
4360 "Data: x%x x%x x%x\n",
4361 vport->port_state, vport->fc_flag,
4362 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
2fe165b6 4363 return 0;
dea3101e 4364}
4365
4366/*
4367 * Check specified ring for outstanding IOCB on the SLI queue
4368 * Return true if iocb matches the specified nport
4369 */
4370int
2e0fef85
JS		 4371lpfc_check_sli_ndlp(struct lpfc_hba *phba,
4372 struct lpfc_sli_ring *pring,
4373 struct lpfc_iocbq *iocb,
4374 struct lpfc_nodelist *ndlp)
dea3101e 4375{
2e0fef85
JS		 4376 struct lpfc_sli *psli = &phba->sli;
4377 IOCB_t *icmd = &iocb->iocb;
92d7f7b0
JS		 4378 struct lpfc_vport *vport = ndlp->vport;
4379
4380 if (iocb->vport != vport)
4381 return 0;
4382
dea3101e 4383 if (pring->ringno == LPFC_ELS_RING) {
4384 switch (icmd->ulpCommand) {
4385 case CMD_GEN_REQUEST64_CR:
21e9a0a5 4386 if (iocb->context_un.ndlp == ndlp)
2fe165b6 4387 return 1;
dea3101e 4388 case CMD_ELS_REQUEST64_CR:
10d4e957
JS		 4389 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
4390 return 1;
dea3101e 4391 case CMD_XMIT_ELS_RSP64_CX:
4392 if (iocb->context1 == (uint8_t *) ndlp)
2fe165b6 4393 return 1;
dea3101e 4394 }
a4bc3379 4395 } else if (pring->ringno == psli->extra_ring) {
dea3101e 4396
4397 } else if (pring->ringno == psli->fcp_ring) {
4398 /* Skip match check if waiting to relogin to FCP target */
4399 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
92d7f7b0 4400 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
2fe165b6 4401 return 0;
dea3101e 4402 }
4403 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
2fe165b6 4404 return 1;
dea3101e 4405 }
4406 } else if (pring->ringno == psli->next_ring) {
4407
4408 }
2fe165b6 4409 return 0;
dea3101e 4410}
4411
4412/*
4413 * Free resources / clean up outstanding I/Os
4414 * associated with nlp_rpi in the LPFC_NODELIST entry.
4415 */
4416static int
2e0fef85 4417lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 4418{
2534ba75 4419 LIST_HEAD(completions);
dea3101e 4420 struct lpfc_sli *psli;
4421 struct lpfc_sli_ring *pring;
4422 struct lpfc_iocbq *iocb, *next_iocb;
6a9c52cf 4423 uint32_t i;
dea3101e 4424
92d7f7b0
JS		 4425 lpfc_fabric_abort_nport(ndlp);
4426
dea3101e 4427 /*
4428 * Everything that matches on txcmplq will be returned
4429 * by firmware with a no rpi error.
4430 */
4431 psli = &phba->sli;
4042629e 4432 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
dea3101e 4433 /* Now process each ring */
4434 for (i = 0; i < psli->num_rings; i++) {
4435 pring = &psli->ring[i];
4436
2e0fef85 4437 spin_lock_irq(&phba->hbalock);
dea3101e 4438 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
2e0fef85 4439 list) {
dea3101e 4440 /*
4441 * Check to see if iocb matches the nport we are
4442 * looking for
4443 */
92d7f7b0
JS		 4444 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
4445 ndlp))) {
dea3101e 4446 /* It matches, so deque and call compl
4447 with an error */
2534ba75
JS		 4448 list_move_tail(&iocb->list,
4449 &completions);
dea3101e 4450 }
4451 }
2e0fef85 4452 spin_unlock_irq(&phba->hbalock);
dea3101e 4453 }
4454 }
2534ba75 4455
a257bf90
JS		 4456 /* Cancel all the IOCBs from the completions list */
4457 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4458 IOERR_SLI_ABORTED);
2534ba75 4459
2fe165b6 4460 return 0;
dea3101e 4461}
4462
086a345f
JS		 4463/**
4464 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
4465 * @phba: Pointer to HBA context object.
4466 * @pmb: Pointer to mailbox object.
4467 *
4468 * This function will issue an ELS LOGO command after completing
4469 * the UNREG_RPI.
4470 **/
b86a6756 4471static void
086a345f
JS		 4472lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4473{
4474 struct lpfc_vport *vport = pmb->vport;
4475 struct lpfc_nodelist *ndlp;
4476
4477 ndlp = (struct lpfc_nodelist *)(pmb->context1);
4478 if (!ndlp)
4479 return;
4480 lpfc_issue_els_logo(vport, ndlp, 0);
4aa74c3c 4481 mempool_free(pmb, phba->mbox_mem_pool);
086a345f
JS		 4482}
4483
dea3101e 4484/*
4485 * Free rpi associated with LPFC_NODELIST entry.
4486 * This routine is called from lpfc_freenode(), when we are removing
4487 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4488 * LOGO that completes successfully, and we are waiting to PLOGI back
4489 * to the remote NPort. In addition, it is called after we receive
4490 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4491 * we are waiting to PLOGI back to the remote NPort.
4492 */
4493int
2e0fef85 4494lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 4495{
2e0fef85
JS		 4496 struct lpfc_hba *phba = vport->phba;
4497 LPFC_MBOXQ_t *mbox;
7c5e518c 4498 int rc, acc_plogi = 1;
6d368e53 4499 uint16_t rpi;
dea3101e 4500
f454a9ac
JS		 4501 if (ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4502 ndlp->nlp_flag & NLP_REG_LOGIN_SEND) {
4503 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
4504 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
4505 "3366 RPI x%x needs to be "
4506 "unregistered nlp_flag x%x "
4507 "did x%x\n",
4508 ndlp->nlp_rpi, ndlp->nlp_flag,
4509 ndlp->nlp_DID);
2e0fef85
JS		 4510 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4511 if (mbox) {
6d368e53
JS		 4512 /* SLI4 ports require the physical rpi value. */
4513 rpi = ndlp->nlp_rpi;
4514 if (phba->sli_rev == LPFC_SLI_REV4)
4515 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
086a345f 4516
6d368e53 4517 lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
ed957684 4518 mbox->vport = vport;
086a345f
JS		 4519 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
4520 mbox->context1 = ndlp;
4521 mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
4522 } else {
be6bb941
JS		 4523 if (phba->sli_rev == LPFC_SLI_REV4 &&
4524 (!(vport->load_flag & FC_UNLOADING)) &&
4525 (bf_get(lpfc_sli_intf_if_type,
4526 &phba->sli4_hba.sli_intf) ==
4527 LPFC_SLI_INTF_IF_TYPE_2)) {
4528 mbox->context1 = lpfc_nlp_get(ndlp);
4529 mbox->mbox_cmpl =
4530 lpfc_sli4_unreg_rpi_cmpl_clr;
7c5e518c
JS		 4531 /*
4532 * accept PLOGIs after unreg_rpi_cmpl
4533 */
4534 acc_plogi = 0;
be6bb941
JS		 4535 } else
4536 mbox->mbox_cmpl =
4537 lpfc_sli_def_mbox_cmpl;
086a345f
JS		 4538 }
4539
0b727fea 4540 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
7c5e518c 4541 if (rc == MBX_NOT_FINISHED) {
2e0fef85 4542 mempool_free(mbox, phba->mbox_mem_pool);
7c5e518c
JS		 4543 acc_plogi = 1;
4544 }
dea3101e 4545 }
dea3101e 4546 lpfc_no_rpi(phba, ndlp);
d7c47992 4547
4042629e
JS		 4548 if (phba->sli_rev != LPFC_SLI_REV4)
4549 ndlp->nlp_rpi = 0;
4550 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
0c287589 4551 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
7c5e518c
JS		 4552 if (acc_plogi)
4553 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
dea3101e 4554 return 1;
4555 }
7c5e518c 4556 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
dea3101e 4557 return 0;
4558}
4559
ecfd03c6
JS		 4560/**
4561 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4562 * @phba: pointer to lpfc hba data structure.
4563 *
4564 * This routine is invoked to unregister all the currently registered RPIs
4565 * to the HBA.
4566 **/
4567void
4568lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
4569{
4570 struct lpfc_vport **vports;
4571 struct lpfc_nodelist *ndlp;
4572 struct Scsi_Host *shost;
4573 int i;
4574
4575 vports = lpfc_create_vport_work_array(phba);
63e801ce
JS		 4576 if (!vports) {
4577 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
4578 "2884 Vport array allocation failed \n");
4579 return;
4580 }
ecfd03c6
JS		 4581 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4582 shost = lpfc_shost_from_vport(vports[i]);
4583 spin_lock_irq(shost->host_lock);
4584 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
4042629e 4585 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
0c9ab6f5
JS		 4586 /* The mempool_alloc might sleep */
4587 spin_unlock_irq(shost->host_lock);
ecfd03c6 4588 lpfc_unreg_rpi(vports[i], ndlp);
0c9ab6f5
JS		 4589 spin_lock_irq(shost->host_lock);
4590 }
ecfd03c6
JS		 4591 }
4592 spin_unlock_irq(shost->host_lock);
4593 }
4594 lpfc_destroy_vport_work_array(phba, vports);
4595}
4596
92d7f7b0
JS		 4597void
4598lpfc_unreg_all_rpis(struct lpfc_vport *vport)
4599{
4600 struct lpfc_hba *phba = vport->phba;
4601 LPFC_MBOXQ_t *mbox;
4602 int rc;
4603
5af5eee7
JS		 4604 if (phba->sli_rev == LPFC_SLI_REV4) {
4605 lpfc_sli4_unreg_all_rpis(vport);
4606 return;
4607 }
4608
92d7f7b0
JS		 4609 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4610 if (mbox) {
6d368e53
JS		 4611 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
4612 mbox);
92d7f7b0
JS		 4613 mbox->vport = vport;
4614 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
09372820
JS		 4615 mbox->context1 = NULL;
4616 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
a257bf90 4617 if (rc != MBX_TIMEOUT)
92d7f7b0 4618 mempool_free(mbox, phba->mbox_mem_pool);
a257bf90
JS		 4619
4620 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4621 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4622 "1836 Could not issue "
4623 "unreg_login(all_rpis) status %d\n", rc);
92d7f7b0
JS		 4624 }
4625}
4626
4627void
4628lpfc_unreg_default_rpis(struct lpfc_vport *vport)
4629{
4630 struct lpfc_hba *phba = vport->phba;
4631 LPFC_MBOXQ_t *mbox;
4632 int rc;
4633
4634 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4635 if (mbox) {
6d368e53
JS		 4636 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
4637 mbox);
92d7f7b0
JS		 4638 mbox->vport = vport;
4639 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
09372820
JS		 4640 mbox->context1 = NULL;
4641 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
a257bf90
JS		 4642 if (rc != MBX_TIMEOUT)
4643 mempool_free(mbox, phba->mbox_mem_pool);
4644
4645 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
e8b62011
JS		 4646 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4647 "1815 Could not issue "
a257bf90
JS		 4648 "unreg_did (default rpis) status %d\n",
4649 rc);
92d7f7b0
JS		 4650 }
4651}
4652
dea3101e 4653/*
4654 * Free resources associated with LPFC_NODELIST entry
4655 * so it can be freed.
4656 */
4657static int
2e0fef85 4658lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 4659{
2e0fef85
JS		 4660 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4661 struct lpfc_hba *phba = vport->phba;
4662 LPFC_MBOXQ_t *mb, *nextmb;
dea3101e 4663 struct lpfc_dmabuf *mp;
dea3101e 4664
4665 /* Cleanup node for NPort <nlp_DID> */
e8b62011
JS		 4666 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4667 "0900 Cleanup node for NPort x%x "
4668 "Data: x%x x%x x%x\n",
4669 ndlp->nlp_DID, ndlp->nlp_flag,
4670 ndlp->nlp_state, ndlp->nlp_rpi);
e47c9093
JS		 4671 if (NLP_CHK_FREE_REQ(ndlp)) {
4672 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4673 "0280 lpfc_cleanup_node: ndlp:x%p "
4674 "usgmap:x%x refcnt:%d\n",
4675 (void *)ndlp, ndlp->nlp_usg_map,
4676 atomic_read(&ndlp->kref.refcount));
4677 lpfc_dequeue_node(vport, ndlp);
4678 } else {
4679 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4680 "0281 lpfc_cleanup_node: ndlp:x%p "
4681 "usgmap:x%x refcnt:%d\n",
4682 (void *)ndlp, ndlp->nlp_usg_map,
4683 atomic_read(&ndlp->kref.refcount));
4684 lpfc_disable_node(vport, ndlp);
4685 }
dea3101e 4686
086a345f
JS		 4687
4688 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
4689
dea3101e 4690 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
4691 if ((mb = phba->sli.mbox_active)) {
04c68496 4692 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
086a345f 4693 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
dea3101e 4694 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
4695 mb->context2 = NULL;
4696 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4697 }
4698 }
33ccf8d1 4699
2e0fef85 4700 spin_lock_irq(&phba->hbalock);
5ac6b303
JS		 4701 /* Cleanup REG_LOGIN completions which are not yet processed */
4702 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
4703 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
086a345f 4704 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
5ac6b303
JS		 4705 (ndlp != (struct lpfc_nodelist *) mb->context2))
4706 continue;
4707
4708 mb->context2 = NULL;
4709 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4710 }
4711
dea3101e 4712 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
04c68496 4713 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
086a345f 4714 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
92d7f7b0 4715 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
dea3101e 4716 mp = (struct lpfc_dmabuf *) (mb->context1);
4717 if (mp) {
2e0fef85 4718 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e 4719 kfree(mp);
4720 }
4721 list_del(&mb->list);
4722 mempool_free(mb, phba->mbox_mem_pool);
e47c9093
JS		 4723 /* We shall not invoke the lpfc_nlp_put to decrement
4724 * the ndlp reference count as we are in the process
4725 * of lpfc_nlp_release.
4726 */
dea3101e 4727 }
4728 }
2e0fef85 4729 spin_unlock_irq(&phba->hbalock);
dea3101e 4730
e47c9093
JS		 4731 lpfc_els_abort(phba, ndlp);
4732
2e0fef85 4733 spin_lock_irq(shost->host_lock);
c01f3208 4734 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
2e0fef85 4735 spin_unlock_irq(shost->host_lock);
dea3101e 4736
5024ab17 4737 ndlp->nlp_last_elscmd = 0;
dea3101e 4738 del_timer_sync(&ndlp->nlp_delayfunc);
4739
0d2b6b83
JS		 4740 list_del_init(&ndlp->els_retry_evt.evt_listp);
4741 list_del_init(&ndlp->dev_loss_evt.evt_listp);
1151e3ec 4742 lpfc_cleanup_vports_rrqs(vport, ndlp);
2e0fef85 4743 lpfc_unreg_rpi(vport, ndlp);
dea3101e 4744
2fe165b6 4745 return 0;
dea3101e 4746}
4747
4748/*
4749 * Check to see if we can free the nlp back to the freelist.
4750 * If we are in the middle of using the nlp in the discovery state
4751 * machine, defer the free till we reach the end of the state machine.
4752 */
329f9bc7 4753static void
2e0fef85 4754lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 4755{
a8adb832 4756 struct lpfc_hba *phba = vport->phba;
1dcb58e5 4757 struct lpfc_rport_data *rdata;
466e840b 4758 struct fc_rport *rport;
a8adb832
JS		 4759 LPFC_MBOXQ_t *mbox;
4760 int rc;
dea3101e 4761
0d2b6b83 4762 lpfc_cancel_retry_delay_tmo(vport, ndlp);
21e9a0a5 4763 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
4042629e
JS		 4764 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
4765 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
a8adb832
JS		 4766 /* For this case we need to cleanup the default rpi
4767 * allocated by the firmware.
4768 */
be6bb941
JS		 4769 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4770 "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n",
4771 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
4772 atomic_read(&ndlp->kref.refcount),
4773 ndlp->nlp_usg_map, ndlp);
a8adb832
JS		 4774 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
4775 != NULL) {
21e9a0a5 4776 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
4042629e 4777 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi);
a8adb832
JS		 4778 if (rc) {
4779 mempool_free(mbox, phba->mbox_mem_pool);
4780 }
4781 else {
4782 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
4783 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
4784 mbox->vport = vport;
086a345f 4785 mbox->context2 = ndlp;
a8adb832
JS		 4786 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4787 if (rc == MBX_NOT_FINISHED) {
4788 mempool_free(mbox, phba->mbox_mem_pool);
4789 }
4790 }
4791 }
4792 }
2e0fef85 4793 lpfc_cleanup_node(vport, ndlp);
1dcb58e5 4794
2e0fef85 4795 /*
466e840b
JS		 4796 * ndlp->rport must be set to NULL before it reaches here
4797 * i.e. break rport/node link before doing lpfc_nlp_put for
4798 * registered rport and then drop the reference of rport.
2e0fef85 4799 */
92d7f7b0 4800 if (ndlp->rport) {
466e840b
JS		 4801 /*
4802 * extra lpfc_nlp_put dropped the reference of ndlp
4803 * for registered rport so need to cleanup rport
4804 */
4805 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4806 "0940 removed node x%p DID x%x "
4807 " rport not null %p\n",
4808 ndlp, ndlp->nlp_DID, ndlp->rport);
4809 rport = ndlp->rport;
4810 rdata = rport->dd_data;
329f9bc7
JS		 4811 rdata->pnode = NULL;
4812 ndlp->rport = NULL;
466e840b 4813 put_device(&rport->dev);
dea3101e 4814 }
dea3101e 4815}
4816
4817static int
2e0fef85
JS		 4818lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4819 uint32_t did)
dea3101e 4820{
2e0fef85 4821 D_ID mydid, ndlpdid, matchdid;
dea3101e 4822
4823 if (did == Bcast_DID)
2fe165b6 4824 return 0;
dea3101e 4825
dea3101e 4826 /* First check for Direct match */
4827 if (ndlp->nlp_DID == did)
2fe165b6 4828 return 1;
dea3101e 4829
4830 /* Next check for area/domain identically equals 0 match */
2e0fef85 4831 mydid.un.word = vport->fc_myDID;
dea3101e 4832 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2fe165b6 4833 return 0;
dea3101e 4834 }
4835
4836 matchdid.un.word = did;
4837 ndlpdid.un.word = ndlp->nlp_DID;
4838 if (matchdid.un.b.id == ndlpdid.un.b.id) {
4839 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
4840 (mydid.un.b.area == matchdid.un.b.area)) {
6b337e03
JS		 4841 /* This code is supposed to match the ID
4842 * for a private loop device that is
4843 * connect to fl_port. But we need to
4844 * check that the port did not just go
4845 * from pt2pt to fabric or we could end
4846 * up matching ndlp->nlp_DID 000001 to
4847 * fabric DID 0x20101
4848 */
dea3101e 4849 if ((ndlpdid.un.b.domain == 0) &&
4850 (ndlpdid.un.b.area == 0)) {
6b337e03
JS		 4851 if (ndlpdid.un.b.id &&
4852 vport->phba->fc_topology ==
4853 LPFC_TOPOLOGY_LOOP)
2fe165b6 4854 return 1;
dea3101e 4855 }
2fe165b6 4856 return 0;
dea3101e 4857 }
4858
4859 matchdid.un.word = ndlp->nlp_DID;
4860 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
4861 (mydid.un.b.area == ndlpdid.un.b.area)) {
4862 if ((matchdid.un.b.domain == 0) &&
4863 (matchdid.un.b.area == 0)) {
4864 if (matchdid.un.b.id)
2fe165b6 4865 return 1;
dea3101e 4866 }
4867 }
4868 }
2fe165b6 4869 return 0;
dea3101e 4870}
4871
685f0bf7 4872/* Search for a nodelist entry */
2e0fef85
JS		 4873static struct lpfc_nodelist *
4874__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
dea3101e 4875{
2fb9bd8b 4876 struct lpfc_nodelist *ndlp;
dea3101e 4877 uint32_t data1;
4878
2e0fef85
JS		 4879 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4880 if (lpfc_matchdid(vport, ndlp, did)) {
685f0bf7
JS		 4881 data1 = (((uint32_t) ndlp->nlp_state << 24) |
4882 ((uint32_t) ndlp->nlp_xri << 16) |
4883 ((uint32_t) ndlp->nlp_type << 8) |
4884 ((uint32_t) ndlp->nlp_rpi & 0xff));
e8b62011
JS		 4885 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4886 "0929 FIND node DID "
cff261f6 4887 "Data: x%p x%x x%x x%x %p\n",
e8b62011 4888 ndlp, ndlp->nlp_DID,
cff261f6
JS		 4889 ndlp->nlp_flag, data1,
4890 ndlp->active_rrqs_xri_bitmap);
685f0bf7 4891 return ndlp;
dea3101e 4892 }
4893 }
66a9ed66 4894
dea3101e 4895 /* FIND node did <did> NOT FOUND */
e8b62011
JS		 4896 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4897 "0932 FIND node did x%x NOT FOUND.\n", did);
dea3101e 4898 return NULL;
4899}
4900
4901struct lpfc_nodelist *
2e0fef85
JS		 4902lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
4903{
4904 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4905 struct lpfc_nodelist *ndlp;
fedd3b7b 4906 unsigned long iflags;
2e0fef85 4907
fedd3b7b 4908 spin_lock_irqsave(shost->host_lock, iflags);
2e0fef85 4909 ndlp = __lpfc_findnode_did(vport, did);
fedd3b7b 4910 spin_unlock_irqrestore(shost->host_lock, iflags);
2e0fef85
JS		 4911 return ndlp;
4912}
4913
4914struct lpfc_nodelist *
4915lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
dea3101e 4916{
2e0fef85 4917 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 4918 struct lpfc_nodelist *ndlp;
dea3101e 4919
2e0fef85 4920 ndlp = lpfc_findnode_did(vport, did);
c9f8735b 4921 if (!ndlp) {
2e0fef85
JS		 4922 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
4923 lpfc_rscn_payload_check(vport, did) == 0)
dea3101e 4924 return NULL;
4925 ndlp = (struct lpfc_nodelist *)
2e0fef85 4926 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
dea3101e 4927 if (!ndlp)
4928 return NULL;
2e0fef85
JS		 4929 lpfc_nlp_init(vport, ndlp, did);
4930 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4931 spin_lock_irq(shost->host_lock);
dea3101e 4932 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 4933 spin_unlock_irq(shost->host_lock);
dea3101e 4934 return ndlp;
e47c9093
JS		 4935 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4936 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
4937 if (!ndlp)
4938 return NULL;
4939 spin_lock_irq(shost->host_lock);
4940 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4941 spin_unlock_irq(shost->host_lock);
4942 return ndlp;
dea3101e 4943 }
e47c9093 4944
58da1ffb
JS		 4945 if ((vport->fc_flag & FC_RSCN_MODE) &&
4946 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
2e0fef85 4947 if (lpfc_rscn_payload_check(vport, did)) {
25985edc 4948 /* If we've already received a PLOGI from this NPort
87af33fe
JS		 4949 * we don't need to try to discover it again.
4950 */
4951 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
4952 return NULL;
4953
c9f8735b
JW		 4954 /* Since this node is marked for discovery,
4955 * delay timeout is not needed.
4956 */
0d2b6b83 4957 lpfc_cancel_retry_delay_tmo(vport, ndlp);
a257bf90
JS		 4958 spin_lock_irq(shost->host_lock);
4959 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4960 spin_unlock_irq(shost->host_lock);
071fbd3d 4961 } else
dea3101e 4962 ndlp = NULL;
2fe165b6 4963 } else {
25985edc 4964 /* If we've already received a PLOGI from this NPort,
87af33fe
JS		 4965 * or we are already in the process of discovery on it,
4966 * we don't need to try to discover it again.
4967 */
685f0bf7 4968 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
87af33fe
JS		 4969 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
4970 ndlp->nlp_flag & NLP_RCV_PLOGI)
dea3101e 4971 return NULL;
2e0fef85
JS		 4972 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4973 spin_lock_irq(shost->host_lock);
dea3101e 4974 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 4975 spin_unlock_irq(shost->host_lock);
dea3101e 4976 }
4977 return ndlp;
4978}
4979
4980/* Build a list of nodes to discover based on the loopmap */
4981void
2e0fef85 4982lpfc_disc_list_loopmap(struct lpfc_vport *vport)
dea3101e 4983{
2e0fef85 4984 struct lpfc_hba *phba = vport->phba;
dea3101e 4985 int j;
4986 uint32_t alpa, index;
4987
2e0fef85 4988 if (!lpfc_is_link_up(phba))
dea3101e 4989 return;
2e0fef85 4990
76a95d75 4991 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
dea3101e 4992 return;
dea3101e 4993
4994 /* Check for loop map present or not */
4995 if (phba->alpa_map[0]) {
4996 for (j = 1; j <= phba->alpa_map[0]; j++) {
4997 alpa = phba->alpa_map[j];
2e0fef85 4998 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
dea3101e 4999 continue;
2e0fef85 5000 lpfc_setup_disc_node(vport, alpa);
dea3101e 5001 }
5002 } else {
5003 /* No alpamap, so try all alpa's */
5004 for (j = 0; j < FC_MAXLOOP; j++) {
5005 /* If cfg_scan_down is set, start from highest
5006 * ALPA (0xef) to lowest (0x1).
5007 */
3de2a653 5008 if (vport->cfg_scan_down)
dea3101e 5009 index = j;
5010 else
5011 index = FC_MAXLOOP - j - 1;
5012 alpa = lpfcAlpaArray[index];
2e0fef85 5013 if ((vport->fc_myDID & 0xff) == alpa)
dea3101e 5014 continue;
2e0fef85 5015 lpfc_setup_disc_node(vport, alpa);
dea3101e 5016 }
5017 }
5018 return;
5019}
5020
dea3101e 5021void
2e0fef85 5022lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
dea3101e 5023{
dea3101e 5024 LPFC_MBOXQ_t *mbox;
2e0fef85
JS		 5025 struct lpfc_sli *psli = &phba->sli;
5026 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
5027 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
5028 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
5029 int rc;
5030
92d7f7b0
JS		 5031 /*
5032 * if it's not a physical port or if we already send
5033 * clear_la then don't send it.
5034 */
5035 if ((phba->link_state >= LPFC_CLEAR_LA) ||
da0436e9
JS		 5036 (vport->port_type != LPFC_PHYSICAL_PORT) ||
5037 (phba->sli_rev == LPFC_SLI_REV4))
92d7f7b0
JS		 5038 return;
5039
2e0fef85
JS		 5040 /* Link up discovery */
5041 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
5042 phba->link_state = LPFC_CLEAR_LA;
5043 lpfc_clear_la(phba, mbox);
5044 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
5045 mbox->vport = vport;
0b727fea 5046 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2e0fef85
JS		 5047 if (rc == MBX_NOT_FINISHED) {
5048 mempool_free(mbox, phba->mbox_mem_pool);
5049 lpfc_disc_flush_list(vport);
5050 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5051 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
5052 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
92d7f7b0
JS		 5053 phba->link_state = LPFC_HBA_ERROR;
5054 }
5055 }
5056}
5057
5058/* Reg_vpi to tell firmware to resume normal operations */
5059void
5060lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
5061{
5062 LPFC_MBOXQ_t *regvpimbox;
5063
5064 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5065 if (regvpimbox) {
da0436e9 5066 lpfc_reg_vpi(vport, regvpimbox);
92d7f7b0
JS		 5067 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
5068 regvpimbox->vport = vport;
0b727fea 5069 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
92d7f7b0
JS		 5070 == MBX_NOT_FINISHED) {
5071 mempool_free(regvpimbox, phba->mbox_mem_pool);
2e0fef85
JS		 5072 }
5073 }
5074}
5075
5076/* Start Link up / RSCN discovery on NPR nodes */
5077void
5078lpfc_disc_start(struct lpfc_vport *vport)
5079{
5080 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5081 struct lpfc_hba *phba = vport->phba;
685f0bf7 5082 uint32_t num_sent;
dea3101e 5083 uint32_t clear_la_pending;
dea3101e 5084
e74c03c8
JS		 5085 if (!lpfc_is_link_up(phba)) {
5086 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5087 "3315 Link is not up %x\n",
5088 phba->link_state);
dea3101e 5089 return;
e74c03c8 5090 }
2e0fef85
JS		 5091
5092 if (phba->link_state == LPFC_CLEAR_LA)
dea3101e 5093 clear_la_pending = 1;
5094 else
5095 clear_la_pending = 0;
5096
2e0fef85
JS		 5097 if (vport->port_state < LPFC_VPORT_READY)
5098 vport->port_state = LPFC_DISC_AUTH;
dea3101e 5099
2e0fef85
JS		 5100 lpfc_set_disctmo(vport);
5101
2e0fef85
JS		 5102 vport->fc_prevDID = vport->fc_myDID;
5103 vport->num_disc_nodes = 0;
dea3101e 5104
5105 /* Start Discovery state <hba_state> */
e8b62011
JS		 5106 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5107 "0202 Start Discovery hba state x%x "
5108 "Data: x%x x%x x%x\n",
5109 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
5110 vport->fc_adisc_cnt);
dea3101e 5111
5112 /* First do ADISCs - if any */
2e0fef85 5113 num_sent = lpfc_els_disc_adisc(vport);
dea3101e 5114
5115 if (num_sent)
5116 return;
5117
6fa139f3 5118 /* Register the VPI for SLI3, NPIV only. */
92d7f7b0 5119 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1b32f6aa 5120 !(vport->fc_flag & FC_PT2PT) &&
da0436e9
JS		 5121 !(vport->fc_flag & FC_RSCN_MODE) &&
5122 (phba->sli_rev < LPFC_SLI_REV4)) {
85c0f177 5123 lpfc_issue_clear_la(phba, vport);
92d7f7b0
JS		 5124 lpfc_issue_reg_vpi(phba, vport);
5125 return;
5126 }
5127
5128 /*
5129 * For SLI2, we need to set port_state to READY and continue
5130 * discovery.
5131 */
2e0fef85 5132 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
dea3101e 5133 /* If we get here, there is nothing to ADISC */
85c0f177 5134 lpfc_issue_clear_la(phba, vport);
2e0fef85 5135
92d7f7b0 5136 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2e0fef85
JS		 5137 vport->num_disc_nodes = 0;
5138 /* go thru NPR nodes and issue ELS PLOGIs */
5139 if (vport->fc_npr_cnt)
5140 lpfc_els_disc_plogi(vport);
5141
5142 if (!vport->num_disc_nodes) {
5143 spin_lock_irq(shost->host_lock);
5144 vport->fc_flag &= ~FC_NDISC_ACTIVE;
5145 spin_unlock_irq(shost->host_lock);
92d7f7b0 5146 lpfc_can_disctmo(vport);
dea3101e 5147 }
5148 }
92d7f7b0 5149 vport->port_state = LPFC_VPORT_READY;
dea3101e 5150 } else {
5151 /* Next do PLOGIs - if any */
2e0fef85 5152 num_sent = lpfc_els_disc_plogi(vport);
dea3101e 5153
5154 if (num_sent)
5155 return;
5156
2e0fef85 5157 if (vport->fc_flag & FC_RSCN_MODE) {
dea3101e 5158 /* Check to see if more RSCNs came in while we
5159 * were processing this one.
5160 */
2e0fef85
JS		 5161 if ((vport->fc_rscn_id_cnt == 0) &&
5162 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
5163 spin_lock_irq(shost->host_lock);
5164 vport->fc_flag &= ~FC_RSCN_MODE;
5165 spin_unlock_irq(shost->host_lock);
92d7f7b0 5166 lpfc_can_disctmo(vport);
2fe165b6 5167 } else
2e0fef85 5168 lpfc_els_handle_rscn(vport);
dea3101e 5169 }
5170 }
5171 return;
5172}
5173
5174/*
5175 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
5176 * ring the match the sppecified nodelist.
5177 */
5178static void
2e0fef85 5179lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 5180{
2534ba75 5181 LIST_HEAD(completions);
dea3101e 5182 struct lpfc_sli *psli;
5183 IOCB_t *icmd;
5184 struct lpfc_iocbq *iocb, *next_iocb;
5185 struct lpfc_sli_ring *pring;
dea3101e 5186
5187 psli = &phba->sli;
5188 pring = &psli->ring[LPFC_ELS_RING];
5189
5190 /* Error matching iocb on txq or txcmplq
5191 * First check the txq.
5192 */
2e0fef85 5193 spin_lock_irq(&phba->hbalock);
dea3101e 5194 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
5195 if (iocb->context1 != ndlp) {
5196 continue;
5197 }
5198 icmd = &iocb->iocb;
5199 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
5200 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
5201
2534ba75 5202 list_move_tail(&iocb->list, &completions);
dea3101e 5203 }
5204 }
5205
5206 /* Next check the txcmplq */
5207 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
5208 if (iocb->context1 != ndlp) {
5209 continue;
5210 }
5211 icmd = &iocb->iocb;
2e0fef85
JS		 5212 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
5213 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
2534ba75
JS		 5214 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
5215 }
5216 }
2e0fef85 5217 spin_unlock_irq(&phba->hbalock);
dea3101e 5218
a257bf90
JS		 5219 /* Cancel all the IOCBs from the completions list */
5220 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
5221 IOERR_SLI_ABORTED);
dea3101e 5222}
5223
a6ababd2 5224static void
2e0fef85 5225lpfc_disc_flush_list(struct lpfc_vport *vport)
dea3101e 5226{
5227 struct lpfc_nodelist *ndlp, *next_ndlp;
2e0fef85 5228 struct lpfc_hba *phba = vport->phba;
dea3101e 5229
2e0fef85
JS		 5230 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
5231 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7 5232 nlp_listp) {
e47c9093
JS		 5233 if (!NLP_CHK_NODE_ACT(ndlp))
5234 continue;
685f0bf7
JS		 5235 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5236 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
5237 lpfc_free_tx(phba, ndlp);
685f0bf7 5238 }
dea3101e 5239 }
5240 }
dea3101e 5241}
5242
92d7f7b0
JS		 5243void
5244lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
5245{
5246 lpfc_els_flush_rscn(vport);
5247 lpfc_els_flush_cmd(vport);
5248 lpfc_disc_flush_list(vport);
5249}
5250
dea3101e 5251/*****************************************************************************/
5252/*
5253 * NAME: lpfc_disc_timeout
5254 *
5255 * FUNCTION: Fibre Channel driver discovery timeout routine.
5256 *
5257 * EXECUTION ENVIRONMENT: interrupt only
5258 *
5259 * CALLED FROM:
5260 * Timer function
5261 *
5262 * RETURNS:
5263 * none
5264 */
5265/*****************************************************************************/
5266void
5267lpfc_disc_timeout(unsigned long ptr)
5268{
2e0fef85
JS		 5269 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
5270 struct lpfc_hba *phba = vport->phba;
5e9d9b82 5271 uint32_t tmo_posted;
dea3101e 5272 unsigned long flags = 0;
5273
5274 if (unlikely(!phba))
5275 return;
5276
5e9d9b82
JS		 5277 spin_lock_irqsave(&vport->work_port_lock, flags);
5278 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
5279 if (!tmo_posted)
2e0fef85 5280 vport->work_port_events |= WORKER_DISC_TMO;
5e9d9b82 5281 spin_unlock_irqrestore(&vport->work_port_lock, flags);
2e0fef85 5282
5e9d9b82
JS		 5283 if (!tmo_posted)
5284 lpfc_worker_wake_up(phba);
dea3101e 5285 return;
5286}
5287
5288static void
2e0fef85 5289lpfc_disc_timeout_handler(struct lpfc_vport *vport)
dea3101e 5290{
2e0fef85
JS		 5291 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5292 struct lpfc_hba *phba = vport->phba;
5293 struct lpfc_sli *psli = &phba->sli;
c9f8735b 5294 struct lpfc_nodelist *ndlp, *next_ndlp;
92d7f7b0 5295 LPFC_MBOXQ_t *initlinkmbox;
dea3101e 5296 int rc, clrlaerr = 0;
5297
2e0fef85 5298 if (!(vport->fc_flag & FC_DISC_TMO))
dea3101e 5299 return;
5300
2e0fef85
JS		 5301 spin_lock_irq(shost->host_lock);
5302 vport->fc_flag &= ~FC_DISC_TMO;
5303 spin_unlock_irq(shost->host_lock);
dea3101e 5304
858c9f6c
JS		 5305 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
5306 "disc timeout: state:x%x rtry:x%x flg:x%x",
5307 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
5308
2e0fef85 5309 switch (vport->port_state) {
dea3101e 5310
5311 case LPFC_LOCAL_CFG_LINK:
2e0fef85
JS		 5312 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
5313 * FAN
5314 */
5315 /* FAN timeout */
e8b62011
JS		 5316 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
5317 "0221 FAN timeout\n");
c9f8735b 5318 /* Start discovery by sending FLOGI, clean up old rpis */
2e0fef85 5319 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7 5320 nlp_listp) {
e47c9093
JS		 5321 if (!NLP_CHK_NODE_ACT(ndlp))
5322 continue;
685f0bf7
JS		 5323 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
5324 continue;
c9f8735b
JW		 5325 if (ndlp->nlp_type & NLP_FABRIC) {
5326 /* Clean up the ndlp on Fabric connections */
2e0fef85 5327 lpfc_drop_node(vport, ndlp);
87af33fe 5328
2fe165b6 5329 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
c9f8735b
JW		 5330 /* Fail outstanding IO now since device
5331 * is marked for PLOGI.
5332 */
2e0fef85 5333 lpfc_unreg_rpi(vport, ndlp);
c9f8735b
JW		 5334 }
5335 }
92d7f7b0 5336 if (vport->port_state != LPFC_FLOGI) {
76a95d75
JS		 5337 if (phba->sli_rev <= LPFC_SLI_REV3)
5338 lpfc_initial_flogi(vport);
5339 else
5340 lpfc_issue_init_vfi(vport);
0ff10d46 5341 return;
92d7f7b0 5342 }
dea3101e 5343 break;
5344
92d7f7b0 5345 case LPFC_FDISC:
dea3101e 5346 case LPFC_FLOGI:
2e0fef85 5347 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
dea3101e 5348 /* Initial FLOGI timeout */
e8b62011
JS		 5349 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5350 "0222 Initial %s timeout\n",
87af33fe 5351 vport->vpi ? "FDISC" : "FLOGI");
dea3101e 5352
5353 /* Assume no Fabric and go on with discovery.
5354 * Check for outstanding ELS FLOGI to abort.
5355 */
5356
5357 /* FLOGI failed, so just use loop map to make discovery list */
2e0fef85 5358 lpfc_disc_list_loopmap(vport);
dea3101e 5359
5360 /* Start discovery */
2e0fef85 5361 lpfc_disc_start(vport);
dea3101e 5362 break;
5363
5364 case LPFC_FABRIC_CFG_LINK:
5365 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5366 NameServer login */
e8b62011
JS		 5367 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5368 "0223 Timeout while waiting for "
5369 "NameServer login\n");
dea3101e 5370 /* Next look for NameServer ndlp */
2e0fef85 5371 ndlp = lpfc_findnode_did(vport, NameServer_DID);
e47c9093 5372 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
87af33fe
JS		 5373 lpfc_els_abort(phba, ndlp);
5374
5375 /* ReStart discovery */
5376 goto restart_disc;
dea3101e 5377
5378 case LPFC_NS_QRY:
5379 /* Check for wait for NameServer Rsp timeout */
e8b62011
JS		 5380 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5381 "0224 NameServer Query timeout "
5382 "Data: x%x x%x\n",
5383 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e 5384
92d7f7b0
JS		 5385 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
5386 /* Try it one more time */
5387 vport->fc_ns_retry++;
5388 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
5389 vport->fc_ns_retry, 0);
5390 if (rc == 0)
5391 break;
dea3101e 5392 }
92d7f7b0 5393 vport->fc_ns_retry = 0;
dea3101e 5394
87af33fe 5395restart_disc:
92d7f7b0
JS		 5396 /*
5397 * Discovery is over.
5398 * set port_state to PORT_READY if SLI2.
5399 * cmpl_reg_vpi will set port_state to READY for SLI3.
5400 */
3772a991
JS		 5401 if (phba->sli_rev < LPFC_SLI_REV4) {
5402 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5403 lpfc_issue_reg_vpi(phba, vport);
6d368e53 5404 else {
3772a991
JS		 5405 lpfc_issue_clear_la(phba, vport);
5406 vport->port_state = LPFC_VPORT_READY;
5407 }
dea3101e 5408 }
5409
5410 /* Setup and issue mailbox INITIALIZE LINK command */
5411 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5412 if (!initlinkmbox) {
e8b62011
JS		 5413 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5414 "0206 Device Discovery "
5415 "completion error\n");
2e0fef85 5416 phba->link_state = LPFC_HBA_ERROR;
dea3101e 5417 break;
5418 }
5419
5420 lpfc_linkdown(phba);
5421 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
5422 phba->cfg_link_speed);
04c68496 5423 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
ed957684 5424 initlinkmbox->vport = vport;
92d7f7b0 5425 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 5426 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
5b8bd0c9 5427 lpfc_set_loopback_flag(phba);
dea3101e 5428 if (rc == MBX_NOT_FINISHED)
5429 mempool_free(initlinkmbox, phba->mbox_mem_pool);
5430
5431 break;
5432
5433 case LPFC_DISC_AUTH:
5434 /* Node Authentication timeout */
e8b62011
JS		 5435 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5436 "0227 Node Authentication timeout\n");
2e0fef85
JS		 5437 lpfc_disc_flush_list(vport);
5438
92d7f7b0
JS		 5439 /*
5440 * set port_state to PORT_READY if SLI2.
5441 * cmpl_reg_vpi will set port_state to READY for SLI3.
5442 */
3772a991
JS		 5443 if (phba->sli_rev < LPFC_SLI_REV4) {
5444 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5445 lpfc_issue_reg_vpi(phba, vport);
5446 else { /* NPIV Not enabled */
5447 lpfc_issue_clear_la(phba, vport);
5448 vport->port_state = LPFC_VPORT_READY;
5449 }
dea3101e 5450 }
5451 break;
5452
2e0fef85
JS		 5453 case LPFC_VPORT_READY:
5454 if (vport->fc_flag & FC_RSCN_MODE) {
e8b62011
JS		 5455 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5456 "0231 RSCN timeout Data: x%x "
5457 "x%x\n",
5458 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e 5459
5460 /* Cleanup any outstanding ELS commands */
2e0fef85 5461 lpfc_els_flush_cmd(vport);
dea3101e 5462
2e0fef85
JS		 5463 lpfc_els_flush_rscn(vport);
5464 lpfc_disc_flush_list(vport);
dea3101e 5465 }
5466 break;
2e0fef85 5467
92d7f7b0 5468 default:
e8b62011 5469 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
d7c255b2 5470 "0273 Unexpected discovery timeout, "
e8b62011 5471 "vport State x%x\n", vport->port_state);
2e0fef85
JS		 5472 break;
5473 }
5474
5475 switch (phba->link_state) {
5476 case LPFC_CLEAR_LA:
92d7f7b0 5477 /* CLEAR LA timeout */
e8b62011
JS		 5478 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5479 "0228 CLEAR LA timeout\n");
2e0fef85
JS		 5480 clrlaerr = 1;
5481 break;
5482
09372820
JS		 5483 case LPFC_LINK_UP:
5484 lpfc_issue_clear_la(phba, vport);
5485 /* Drop thru */
2e0fef85
JS		 5486 case LPFC_LINK_UNKNOWN:
5487 case LPFC_WARM_START:
5488 case LPFC_INIT_START:
5489 case LPFC_INIT_MBX_CMDS:
5490 case LPFC_LINK_DOWN:
2e0fef85 5491 case LPFC_HBA_ERROR:
e8b62011
JS		 5492 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5493 "0230 Unexpected timeout, hba link "
5494 "state x%x\n", phba->link_state);
2e0fef85
JS		 5495 clrlaerr = 1;
5496 break;
92d7f7b0
JS		 5497
5498 case LPFC_HBA_READY:
5499 break;
dea3101e 5500 }
5501
5502 if (clrlaerr) {
2e0fef85 5503 lpfc_disc_flush_list(vport);
a4bc3379 5504 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 5505 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
5506 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2e0fef85 5507 vport->port_state = LPFC_VPORT_READY;
dea3101e 5508 }
5509
5510 return;
5511}
5512
dea3101e 5513/*
5514 * This routine handles processing a NameServer REG_LOGIN mailbox
5515 * command upon completion. It is setup in the LPFC_MBOXQ
5516 * as the completion routine when the command is
5517 * handed off to the SLI layer.
5518 */
5519void
2e0fef85 5520lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 5521{
04c68496 5522 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85
JS		 5523 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
5524 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
5525 struct lpfc_vport *vport = pmb->vport;
dea3101e 5526
5527 pmb->context1 = NULL;
d439d286 5528 pmb->context2 = NULL;
dea3101e 5529
6d368e53
JS		 5530 if (phba->sli_rev < LPFC_SLI_REV4)
5531 ndlp->nlp_rpi = mb->un.varWords[0];
4042629e 5532 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
dea3101e 5533 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 5534 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
be6bb941
JS		 5535 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
5536 "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n",
5537 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
5538 atomic_read(&ndlp->kref.refcount),
5539 ndlp->nlp_usg_map, ndlp);
2e0fef85
JS		 5540 /*
5541 * Start issuing Fabric-Device Management Interface (FDMI) command to
5542 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
5543 * fdmi-on=2 (supporting RPA/hostnmae)
dea3101e 5544 */
2e0fef85 5545
76b2c34a 5546 if (vport->cfg_fdmi_on & LPFC_FDMI_REG_DELAY)
256ec0d0
JS		 5547 mod_timer(&vport->fc_fdmitmo,
5548 jiffies + msecs_to_jiffies(1000 * 60));
76b2c34a
JS		 5549 else
5550 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
dea3101e 5551
fa4066b6
JS		 5552 /* decrement the node reference count held for this callback
5553 * function.
5554 */
329f9bc7 5555 lpfc_nlp_put(ndlp);
dea3101e 5556 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5557 kfree(mp);
329f9bc7 5558 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 5559
5560 return;
5561}
5562
685f0bf7
JS		 5563static int
5564lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
5565{
5566 uint16_t *rpi = param;
5567
eff4a01b
JS		 5568 /* check for active node */
5569 if (!NLP_CHK_NODE_ACT(ndlp))
5570 return 0;
5571
685f0bf7
JS		 5572 return ndlp->nlp_rpi == *rpi;
5573}
5574
5575static int
5576lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
5577{
5578 return memcmp(&ndlp->nlp_portname, param,
5579 sizeof(ndlp->nlp_portname)) == 0;
5580}
5581
a6ababd2 5582static struct lpfc_nodelist *
2e0fef85 5583__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
dea3101e 5584{
21568f53 5585 struct lpfc_nodelist *ndlp;
dea3101e 5586
2e0fef85 5587 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
34f5ad8b
JS		 5588 if (filter(ndlp, param)) {
5589 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5590 "3185 FIND node filter %p DID "
5591 "Data: x%p x%x x%x\n",
5592 filter, ndlp, ndlp->nlp_DID,
5593 ndlp->nlp_flag);
685f0bf7 5594 return ndlp;
34f5ad8b 5595 }
685f0bf7 5596 }
34f5ad8b
JS		 5597 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5598 "3186 FIND node filter %p NOT FOUND.\n", filter);
21568f53 5599 return NULL;
dea3101e 5600}
5601
685f0bf7
JS		 5602/*
5603 * This routine looks up the ndlp lists for the given RPI. If rpi found it
2e0fef85 5604 * returns the node list element pointer else return NULL.
685f0bf7
JS		 5605 */
5606struct lpfc_nodelist *
2e0fef85 5607__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
685f0bf7 5608{
2e0fef85 5609 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
685f0bf7
JS		 5610}
5611
488d1469 5612/*
685f0bf7 5613 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
2e0fef85 5614 * returns the node element list pointer else return NULL.
488d1469
JS		 5615 */
5616struct lpfc_nodelist *
2e0fef85 5617lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
488d1469 5618{
2e0fef85 5619 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
488d1469 5620 struct lpfc_nodelist *ndlp;
488d1469 5621
2e0fef85
JS		 5622 spin_lock_irq(shost->host_lock);
5623 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
5624 spin_unlock_irq(shost->host_lock);
858c9f6c 5625 return ndlp;
488d1469
JS		 5626}
5627
cb69f7de
JS		 5628/*
5629 * This routine looks up the ndlp lists for the given RPI. If the rpi
5630 * is found, the routine returns the node element list pointer else
5631 * return NULL.
5632 */
5633struct lpfc_nodelist *
5634lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
5635{
5636 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5637 struct lpfc_nodelist *ndlp;
5638
5639 spin_lock_irq(shost->host_lock);
5640 ndlp = __lpfc_findnode_rpi(vport, rpi);
5641 spin_unlock_irq(shost->host_lock);
5642 return ndlp;
5643}
5644
5645/**
5646 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
5647 * @phba: pointer to lpfc hba data structure.
5648 * @vpi: the physical host virtual N_Port identifier.
5649 *
5650 * This routine finds a vport on a HBA (referred by @phba) through a
5651 * @vpi. The function walks the HBA's vport list and returns the address
5652 * of the vport with the matching @vpi.
5653 *
5654 * Return code
5655 * NULL - No vport with the matching @vpi found
5656 * Otherwise - Address to the vport with the matching @vpi.
5657 **/
5658struct lpfc_vport *
5659lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
5660{
5661 struct lpfc_vport *vport;
5662 unsigned long flags;
5663 int i = 0;
5664
5665 /* The physical ports are always vpi 0 - translate is unnecessary. */
5666 if (vpi > 0) {
5667 /*
5668 * Translate the physical vpi to the logical vpi. The
5669 * vport stores the logical vpi.
5670 */
5671 for (i = 0; i < phba->max_vpi; i++) {
5672 if (vpi == phba->vpi_ids[i])
5673 break;
5674 }
5675
5676 if (i >= phba->max_vpi) {
5677 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
5678 "2936 Could not find Vport mapped "
5679 "to vpi %d\n", vpi);
5680 return NULL;
5681 }
5682 }
5683
5684 spin_lock_irqsave(&phba->hbalock, flags);
5685 list_for_each_entry(vport, &phba->port_list, listentry) {
5686 if (vport->vpi == i) {
5687 spin_unlock_irqrestore(&phba->hbalock, flags);
5688 return vport;
5689 }
5690 }
5691 spin_unlock_irqrestore(&phba->hbalock, flags);
5692 return NULL;
5693}
5694
dea3101e 5695void
2e0fef85
JS		 5696lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
5697 uint32_t did)
dea3101e 5698{
5699 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
109f6ed0
JS		 5700
5701 lpfc_initialize_node(vport, ndlp, did);
685f0bf7 5702 INIT_LIST_HEAD(&ndlp->nlp_listp);
cff261f6 5703 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
725dd399 5704 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba);
be6bb941
JS		 5705 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5706 "0007 rpi:%x DID:%x flg:%x refcnt:%d "
5707 "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
5708 ndlp->nlp_flag,
5709 atomic_read(&ndlp->kref.refcount),
5710 ndlp->nlp_usg_map, ndlp);
5711
cff261f6
JS		 5712 ndlp->active_rrqs_xri_bitmap =
5713 mempool_alloc(vport->phba->active_rrq_pool,
5714 GFP_KERNEL);
59c5f61f
JS		 5715 if (ndlp->active_rrqs_xri_bitmap)
5716 memset(ndlp->active_rrqs_xri_bitmap, 0,
5717 ndlp->phba->cfg_rrq_xri_bitmap_sz);
cff261f6
JS		 5718 }
5719
725dd399 5720
858c9f6c
JS		 5721
5722 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
5723 "node init: did:x%x",
5724 ndlp->nlp_DID, 0, 0);
5725
dea3101e 5726 return;
5727}
329f9bc7 5728
98c9ea5c
JS		 5729/* This routine releases all resources associated with a specifc NPort's ndlp
5730 * and mempool_free's the nodelist.
5731 */
311464ec 5732static void
329f9bc7
JS		 5733lpfc_nlp_release(struct kref *kref)
5734{
e47c9093
JS		 5735 struct lpfc_hba *phba;
5736 unsigned long flags;
329f9bc7
JS		 5737 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
5738 kref);
858c9f6c
JS		 5739
5740 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5741 "node release: did:x%x flg:x%x type:x%x",
5742 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
5743
e47c9093 5744 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
939723a4 5745 "0279 lpfc_nlp_release: ndlp:x%p did %x "
be6bb941 5746 "usgmap:x%x refcnt:%d rpi:%x\n",
939723a4 5747 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map,
be6bb941 5748 atomic_read(&ndlp->kref.refcount), ndlp->nlp_rpi);
e47c9093
JS		 5749
5750 /* remove ndlp from action. */
2e0fef85 5751 lpfc_nlp_remove(ndlp->vport, ndlp);
e47c9093
JS		 5752
5753 /* clear the ndlp active flag for all release cases */
a257bf90 5754 phba = ndlp->phba;
e47c9093
JS		 5755 spin_lock_irqsave(&phba->ndlp_lock, flags);
5756 NLP_CLR_NODE_ACT(ndlp);
5757 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4042629e
JS		 5758 if (phba->sli_rev == LPFC_SLI_REV4)
5759 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
e47c9093
JS		 5760
5761 /* free ndlp memory for final ndlp release */
ea2151b4
JS		 5762 if (NLP_CHK_FREE_REQ(ndlp)) {
5763 kfree(ndlp->lat_data);
cff261f6
JS		 5764 if (phba->sli_rev == LPFC_SLI_REV4)
5765 mempool_free(ndlp->active_rrqs_xri_bitmap,
5766 ndlp->phba->active_rrq_pool);
a257bf90 5767 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
ea2151b4 5768 }
329f9bc7
JS		 5769}
5770
98c9ea5c
JS		 5771/* This routine bumps the reference count for a ndlp structure to ensure
5772 * that one discovery thread won't free a ndlp while another discovery thread
5773 * is using it.
5774 */
329f9bc7
JS		 5775struct lpfc_nodelist *
5776lpfc_nlp_get(struct lpfc_nodelist *ndlp)
5777{
e47c9093
JS		 5778 struct lpfc_hba *phba;
5779 unsigned long flags;
5780
98c9ea5c
JS		 5781 if (ndlp) {
5782 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5783 "node get: did:x%x flg:x%x refcnt:x%x",
5784 ndlp->nlp_DID, ndlp->nlp_flag,
5785 atomic_read(&ndlp->kref.refcount));
e47c9093
JS		 5786 /* The check of ndlp usage to prevent incrementing the
5787 * ndlp reference count that is in the process of being
5788 * released.
5789 */
a257bf90 5790 phba = ndlp->phba;
e47c9093
JS		 5791 spin_lock_irqsave(&phba->ndlp_lock, flags);
5792 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
5793 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5794 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5795 "0276 lpfc_nlp_get: ndlp:x%p "
5796 "usgmap:x%x refcnt:%d\n",
5797 (void *)ndlp, ndlp->nlp_usg_map,
5798 atomic_read(&ndlp->kref.refcount));
5799 return NULL;
5800 } else
5801 kref_get(&ndlp->kref);
5802 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
98c9ea5c 5803 }
329f9bc7
JS		 5804 return ndlp;
5805}
5806
98c9ea5c 5807/* This routine decrements the reference count for a ndlp structure. If the
e47c9093
JS		 5808 * count goes to 0, this indicates the the associated nodelist should be
5809 * freed. Returning 1 indicates the ndlp resource has been released; on the
5810 * other hand, returning 0 indicates the ndlp resource has not been released
5811 * yet.
98c9ea5c 5812 */
329f9bc7
JS		 5813int
5814lpfc_nlp_put(struct lpfc_nodelist *ndlp)
5815{
e47c9093
JS		 5816 struct lpfc_hba *phba;
5817 unsigned long flags;
5818
5819 if (!ndlp)
5820 return 1;
5821
5822 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5823 "node put: did:x%x flg:x%x refcnt:x%x",
5824 ndlp->nlp_DID, ndlp->nlp_flag,
5825 atomic_read(&ndlp->kref.refcount));
a257bf90 5826 phba = ndlp->phba;
e47c9093
JS		 5827 spin_lock_irqsave(&phba->ndlp_lock, flags);
5828 /* Check the ndlp memory free acknowledge flag to avoid the
5829 * possible race condition that kref_put got invoked again
5830 * after previous one has done ndlp memory free.
5831 */
5832 if (NLP_CHK_FREE_ACK(ndlp)) {
5833 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5834 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5835 "0274 lpfc_nlp_put: ndlp:x%p "
5836 "usgmap:x%x refcnt:%d\n",
5837 (void *)ndlp, ndlp->nlp_usg_map,
5838 atomic_read(&ndlp->kref.refcount));
5839 return 1;
5840 }
5841 /* Check the ndlp inactivate log flag to avoid the possible
5842 * race condition that kref_put got invoked again after ndlp
5843 * is already in inactivating state.
5844 */
5845 if (NLP_CHK_IACT_REQ(ndlp)) {
5846 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5847 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5848 "0275 lpfc_nlp_put: ndlp:x%p "
5849 "usgmap:x%x refcnt:%d\n",
5850 (void *)ndlp, ndlp->nlp_usg_map,
5851 atomic_read(&ndlp->kref.refcount));
5852 return 1;
98c9ea5c 5853 }
e47c9093
JS		 5854 /* For last put, mark the ndlp usage flags to make sure no
5855 * other kref_get and kref_put on the same ndlp shall get
5856 * in between the process when the final kref_put has been
5857 * invoked on this ndlp.
5858 */
5859 if (atomic_read(&ndlp->kref.refcount) == 1) {
5860 /* Indicate ndlp is put to inactive state. */
5861 NLP_SET_IACT_REQ(ndlp);
5862 /* Acknowledge ndlp memory free has been seen. */
5863 if (NLP_CHK_FREE_REQ(ndlp))
5864 NLP_SET_FREE_ACK(ndlp);
5865 }
5866 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5867 /* Note, the kref_put returns 1 when decrementing a reference
5868 * count that was 1, it invokes the release callback function,
5869 * but it still left the reference count as 1 (not actually
5870 * performs the last decrementation). Otherwise, it actually
5871 * decrements the reference count and returns 0.
5872 */
5873 return kref_put(&ndlp->kref, lpfc_nlp_release);
329f9bc7 5874}
98c9ea5c
JS		 5875
5876/* This routine free's the specified nodelist if it is not in use
e47c9093
JS		 5877 * by any other discovery thread. This routine returns 1 if the
5878 * ndlp has been freed. A return value of 0 indicates the ndlp is
5879 * not yet been released.
98c9ea5c
JS		 5880 */
5881int
5882lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
5883{
5884 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5885 "node not used: did:x%x flg:x%x refcnt:x%x",
5886 ndlp->nlp_DID, ndlp->nlp_flag,
5887 atomic_read(&ndlp->kref.refcount));
e47c9093
JS		 5888 if (atomic_read(&ndlp->kref.refcount) == 1)
5889 if (lpfc_nlp_put(ndlp))
5890 return 1;
98c9ea5c
JS		 5891 return 0;
5892}
6fb120a7
JS		 5893
5894/**
5895 * lpfc_fcf_inuse - Check if FCF can be unregistered.
5896 * @phba: Pointer to hba context object.
5897 *
5898 * This function iterate through all FC nodes associated
5899 * will all vports to check if there is any node with
5900 * fc_rports associated with it. If there is an fc_rport
5901 * associated with the node, then the node is either in
5902 * discovered state or its devloss_timer is pending.
5903 */
5904static int
5905lpfc_fcf_inuse(struct lpfc_hba *phba)
5906{
5907 struct lpfc_vport **vports;
5908 int i, ret = 0;
5909 struct lpfc_nodelist *ndlp;
5910 struct Scsi_Host *shost;
5911
5912 vports = lpfc_create_vport_work_array(phba);
5913
63e801ce
JS		 5914 /* If driver cannot allocate memory, indicate fcf is in use */
5915 if (!vports)
5916 return 1;
5917
6fb120a7
JS		 5918 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
5919 shost = lpfc_shost_from_vport(vports[i]);
5920 spin_lock_irq(shost->host_lock);
0558056c
JS		 5921 /*
5922 * IF the CVL_RCVD bit is not set then we have sent the
5923 * flogi.
5924 * If dev_loss fires while we are waiting we do not want to
5925 * unreg the fcf.
5926 */
5927 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
5928 spin_unlock_irq(shost->host_lock);
5929 ret = 1;
5930 goto out;
5931 }
6fb120a7
JS		 5932 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
5933 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
5934 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
5935 ret = 1;
5936 spin_unlock_irq(shost->host_lock);
5937 goto out;
80c17849
JS		 5938 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
5939 ret = 1;
891478a2 5940 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
80c17849
JS		 5941 "2624 RPI %x DID %x flag %x "
5942 "still logged in\n",
5943 ndlp->nlp_rpi, ndlp->nlp_DID,
5944 ndlp->nlp_flag);
6fb120a7
JS		 5945 }
5946 }
5947 spin_unlock_irq(shost->host_lock);
5948 }
5949out:
5950 lpfc_destroy_vport_work_array(phba, vports);
5951 return ret;
5952}
5953
5954/**
5955 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
5956 * @phba: Pointer to hba context object.
5957 * @mboxq: Pointer to mailbox object.
5958 *
5959 * This function frees memory associated with the mailbox command.
5960 */
1b51197d 5961void
6fb120a7
JS		 5962lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5963{
5964 struct lpfc_vport *vport = mboxq->vport;
38b92ef8 5965 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6fb120a7
JS		 5966
5967 if (mboxq->u.mb.mbxStatus) {
5968 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5969 "2555 UNREG_VFI mbxStatus error x%x "
5970 "HBA state x%x\n",
5971 mboxq->u.mb.mbxStatus, vport->port_state);
5972 }
38b92ef8
JS		 5973 spin_lock_irq(shost->host_lock);
5974 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
5975 spin_unlock_irq(shost->host_lock);
6fb120a7
JS		 5976 mempool_free(mboxq, phba->mbox_mem_pool);
5977 return;
5978}
5979
5980/**
5981 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
5982 * @phba: Pointer to hba context object.
5983 * @mboxq: Pointer to mailbox object.
5984 *
5985 * This function frees memory associated with the mailbox command.
5986 */
5987static void
5988lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5989{
5990 struct lpfc_vport *vport = mboxq->vport;
5991
5992 if (mboxq->u.mb.mbxStatus) {
5993 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5994 "2550 UNREG_FCFI mbxStatus error x%x "
5995 "HBA state x%x\n",
5996 mboxq->u.mb.mbxStatus, vport->port_state);
5997 }
5998 mempool_free(mboxq, phba->mbox_mem_pool);
5999 return;
6000}
6001
6002/**
ecfd03c6 6003 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
6fb120a7
JS		 6004 * @phba: Pointer to hba context object.
6005 *
ecfd03c6
JS		 6006 * This function prepare the HBA for unregistering the currently registered
6007 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
6008 * VFIs.
6fb120a7 6009 */
ecfd03c6
JS		 6010int
6011lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
6fb120a7 6012{
6fb120a7 6013 struct lpfc_vport **vports;
695a814e 6014 struct lpfc_nodelist *ndlp;
72100cc4 6015 struct Scsi_Host *shost;
e74c03c8 6016 int i = 0, rc;
6fb120a7 6017
ecfd03c6 6018 /* Unregister RPIs */
6fb120a7 6019 if (lpfc_fcf_inuse(phba))
ecfd03c6 6020 lpfc_unreg_hba_rpis(phba);
6fb120a7 6021
4d9ab994
JS		 6022 /* At this point, all discovery is aborted */
6023 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
6fb120a7
JS		 6024
6025 /* Unregister VPIs */
6026 vports = lpfc_create_vport_work_array(phba);
ecfd03c6 6027 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
6fb120a7 6028 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
695a814e
JS		 6029 /* Stop FLOGI/FDISC retries */
6030 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
6031 if (ndlp)
6032 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
78730cfe 6033 lpfc_cleanup_pending_mbox(vports[i]);
5af5eee7
JS		 6034 if (phba->sli_rev == LPFC_SLI_REV4)
6035 lpfc_sli4_unreg_all_rpis(vports[i]);
6fb120a7 6036 lpfc_mbx_unreg_vpi(vports[i]);
72100cc4
JS		 6037 shost = lpfc_shost_from_vport(vports[i]);
6038 spin_lock_irq(shost->host_lock);
891478a2 6039 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
c868595d 6040 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
72100cc4 6041 spin_unlock_irq(shost->host_lock);
6fb120a7
JS		 6042 }
6043 lpfc_destroy_vport_work_array(phba, vports);
e74c03c8
JS		 6044 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) {
6045 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
6046 if (ndlp)
6047 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
6048 lpfc_cleanup_pending_mbox(phba->pport);
6049 if (phba->sli_rev == LPFC_SLI_REV4)
6050 lpfc_sli4_unreg_all_rpis(phba->pport);
6051 lpfc_mbx_unreg_vpi(phba->pport);
6052 shost = lpfc_shost_from_vport(phba->pport);
6053 spin_lock_irq(shost->host_lock);
6054 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
6055 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED;
6056 spin_unlock_irq(shost->host_lock);
6057 }
6fb120a7 6058
695a814e
JS		 6059 /* Cleanup any outstanding ELS commands */
6060 lpfc_els_flush_all_cmd(phba);
6061
1b51197d
JS		 6062 /* Unregister the physical port VFI */
6063 rc = lpfc_issue_unreg_vfi(phba->pport);
6064 return rc;
ecfd03c6
JS		 6065}
6066
6067/**
6068 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
6069 * @phba: Pointer to hba context object.
6070 *
6071 * This function issues synchronous unregister FCF mailbox command to HBA to
6072 * unregister the currently registered FCF record. The driver does not reset
6073 * the driver FCF usage state flags.
6074 *
6075 * Return 0 if successfully issued, none-zero otherwise.
6076 */
6077int
6078lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
6079{
6080 LPFC_MBOXQ_t *mbox;
6081 int rc;
6082
6fb120a7
JS		 6083 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6084 if (!mbox) {
6085 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
ecfd03c6
JS		 6086 "2551 UNREG_FCFI mbox allocation failed"
6087 "HBA state x%x\n", phba->pport->port_state);
6088 return -ENOMEM;
6fb120a7 6089 }
6fb120a7
JS		 6090 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
6091 mbox->vport = phba->pport;
6092 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
6093 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6094
6095 if (rc == MBX_NOT_FINISHED) {
ecfd03c6
JS		 6096 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6097 "2552 Unregister FCFI command failed rc x%x "
6098 "HBA state x%x\n",
6099 rc, phba->pport->port_state);
6100 return -EINVAL;
6101 }
6102 return 0;
6103}
6104
6105/**
6106 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
6107 * @phba: Pointer to hba context object.
6108 *
6109 * This function unregisters the currently reigstered FCF. This function
6110 * also tries to find another FCF for discovery by rescan the HBA FCF table.
6111 */
6112void
6113lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
6114{
6115 int rc;
6116
6117 /* Preparation for unregistering fcf */
6118 rc = lpfc_unregister_fcf_prep(phba);
6119 if (rc) {
6120 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6121 "2748 Failed to prepare for unregistering "
6122 "HBA's FCF record: rc=%d\n", rc);
6fb120a7
JS		 6123 return;
6124 }
6125
ecfd03c6
JS		 6126 /* Now, unregister FCF record and reset HBA FCF state */
6127 rc = lpfc_sli4_unregister_fcf(phba);
6128 if (rc)
6129 return;
6130 /* Reset HBA FCF states after successful unregister FCF */
6131 phba->fcf.fcf_flag = 0;
fc2b989b 6132 phba->fcf.current_rec.flag = 0;
6fb120a7
JS		 6133
6134 /*
6135 * If driver is not unloading, check if there is any other
6136 * FCF record that can be used for discovery.
6137 */
6138 if ((phba->pport->load_flag & FC_UNLOADING) ||
ecfd03c6 6139 (phba->link_state < LPFC_LINK_UP))
6fb120a7
JS		 6140 return;
6141
0c9ab6f5
JS		 6142 /* This is considered as the initial FCF discovery scan */
6143 spin_lock_irq(&phba->hbalock);
6144 phba->fcf.fcf_flag |= FCF_INIT_DISC;
6145 spin_unlock_irq(&phba->hbalock);
38b92ef8
JS		 6146
6147 /* Reset FCF roundrobin bmask for new discovery */
7d791df7 6148 lpfc_sli4_clear_fcf_rr_bmask(phba);
38b92ef8 6149
0c9ab6f5 6150 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6fb120a7 6151
0c9ab6f5
JS		 6152 if (rc) {
6153 spin_lock_irq(&phba->hbalock);
6154 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
6155 spin_unlock_irq(&phba->hbalock);
6fb120a7 6156 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
ecfd03c6
JS		 6157 "2553 lpfc_unregister_unused_fcf failed "
6158 "to read FCF record HBA state x%x\n",
6159 phba->pport->port_state);
0c9ab6f5 6160 }
ecfd03c6
JS		 6161}
6162
6163/**
6164 * lpfc_unregister_fcf - Unregister the currently registered fcf record
6165 * @phba: Pointer to hba context object.
6166 *
6167 * This function just unregisters the currently reigstered FCF. It does not
6168 * try to find another FCF for discovery.
6169 */
6170void
6171lpfc_unregister_fcf(struct lpfc_hba *phba)
6172{
6173 int rc;
6174
6175 /* Preparation for unregistering fcf */
6176 rc = lpfc_unregister_fcf_prep(phba);
6177 if (rc) {
6178 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6179 "2749 Failed to prepare for unregistering "
6180 "HBA's FCF record: rc=%d\n", rc);
6181 return;
6182 }
6183
6184 /* Now, unregister FCF record and reset HBA FCF state */
6185 rc = lpfc_sli4_unregister_fcf(phba);
6186 if (rc)
6187 return;
6188 /* Set proper HBA FCF states after successful unregister FCF */
6189 spin_lock_irq(&phba->hbalock);
6190 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
6191 spin_unlock_irq(&phba->hbalock);
6192}
6193
6194/**
6195 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
6196 * @phba: Pointer to hba context object.
6197 *
6198 * This function check if there are any connected remote port for the FCF and
6199 * if all the devices are disconnected, this function unregister FCFI.
6200 * This function also tries to use another FCF for discovery.
6201 */
6202void
6203lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
6204{
6205 /*
3804dc84
JS		 6206 * If HBA is not running in FIP mode, if HBA does not support
6207 * FCoE, if FCF discovery is ongoing, or if FCF has not been
6208 * registered, do nothing.
ecfd03c6
JS		 6209 */
6210 spin_lock_irq(&phba->hbalock);
76a95d75 6211 if (!(phba->hba_flag & HBA_FCOE_MODE) ||
ecfd03c6 6212 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
dbb6b3ab 6213 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
3804dc84 6214 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
dbb6b3ab 6215 (phba->pport->port_state == LPFC_FLOGI)) {
ecfd03c6
JS		 6216 spin_unlock_irq(&phba->hbalock);
6217 return;
6218 }
6219 spin_unlock_irq(&phba->hbalock);
6220
6221 if (lpfc_fcf_inuse(phba))
6222 return;
6223
6224 lpfc_unregister_fcf_rescan(phba);
6fb120a7
JS		 6225}
6226
6227/**
6228 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
6229 * @phba: Pointer to hba context object.
6230 * @buff: Buffer containing the FCF connection table as in the config
6231 * region.
6232 * This function create driver data structure for the FCF connection
6233 * record table read from config region 23.
6234 */
6235static void
6236lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
6237 uint8_t *buff)
6238{
6239 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6240 struct lpfc_fcf_conn_hdr *conn_hdr;
6241 struct lpfc_fcf_conn_rec *conn_rec;
6242 uint32_t record_count;
6243 int i;
6244
6245 /* Free the current connect table */
6246 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 6247 &phba->fcf_conn_rec_list, list) {
6248 list_del_init(&conn_entry->list);
6fb120a7 6249 kfree(conn_entry);
4d9ab994 6250 }
6fb120a7
JS		 6251
6252 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
6253 record_count = conn_hdr->length * sizeof(uint32_t)/
6254 sizeof(struct lpfc_fcf_conn_rec);
6255
6256 conn_rec = (struct lpfc_fcf_conn_rec *)
6257 (buff + sizeof(struct lpfc_fcf_conn_hdr));
6258
6259 for (i = 0; i < record_count; i++) {
6260 if (!(conn_rec[i].flags & FCFCNCT_VALID))
6261 continue;
6262 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
6263 GFP_KERNEL);
6264 if (!conn_entry) {
6265 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6266 "2566 Failed to allocate connection"
6267 " table entry\n");
6268 return;
6269 }
6270
6271 memcpy(&conn_entry->conn_rec, &conn_rec[i],
6272 sizeof(struct lpfc_fcf_conn_rec));
6fb120a7
JS		 6273 list_add_tail(&conn_entry->list,
6274 &phba->fcf_conn_rec_list);
6275 }
df0d085f
JS		 6276
6277 if (!list_empty(&phba->fcf_conn_rec_list)) {
6278 i = 0;
6279 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list,
6280 list) {
6281 conn_rec = &conn_entry->conn_rec;
6282 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6283 "3345 FCF connection list rec[%02d]: "
6284 "flags:x%04x, vtag:x%04x, "
6285 "fabric_name:x%02x:%02x:%02x:%02x:"
6286 "%02x:%02x:%02x:%02x, "
6287 "switch_name:x%02x:%02x:%02x:%02x:"
6288 "%02x:%02x:%02x:%02x\n", i++,
6289 conn_rec->flags, conn_rec->vlan_tag,
6290 conn_rec->fabric_name[0],
6291 conn_rec->fabric_name[1],
6292 conn_rec->fabric_name[2],
6293 conn_rec->fabric_name[3],
6294 conn_rec->fabric_name[4],
6295 conn_rec->fabric_name[5],
6296 conn_rec->fabric_name[6],
6297 conn_rec->fabric_name[7],
6298 conn_rec->switch_name[0],
6299 conn_rec->switch_name[1],
6300 conn_rec->switch_name[2],
6301 conn_rec->switch_name[3],
6302 conn_rec->switch_name[4],
6303 conn_rec->switch_name[5],
6304 conn_rec->switch_name[6],
6305 conn_rec->switch_name[7]);
6306 }
6307 }
6fb120a7
JS		 6308}
6309
6310/**
6311 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6312 * @phba: Pointer to hba context object.
6313 * @buff: Buffer containing the FCoE parameter data structure.
6314 *
6315 * This function update driver data structure with config
6316 * parameters read from config region 23.
6317 */
6318static void
6319lpfc_read_fcoe_param(struct lpfc_hba *phba,
6320 uint8_t *buff)
6321{
6322 struct lpfc_fip_param_hdr *fcoe_param_hdr;
6323 struct lpfc_fcoe_params *fcoe_param;
6324
6325 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
6326 buff;
6327 fcoe_param = (struct lpfc_fcoe_params *)
32b9793f 6328 (buff + sizeof(struct lpfc_fip_param_hdr));
6fb120a7
JS		 6329
6330 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
6331 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
6332 return;
6333
6fb120a7
JS		 6334 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
6335 phba->valid_vlan = 1;
6336 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
6337 0xFFF;
6338 }
6339
6340 phba->fc_map[0] = fcoe_param->fc_map[0];
6341 phba->fc_map[1] = fcoe_param->fc_map[1];
6342 phba->fc_map[2] = fcoe_param->fc_map[2];
6343 return;
6344}
6345
6346/**
6347 * lpfc_get_rec_conf23 - Get a record type in config region data.
6348 * @buff: Buffer containing config region 23 data.
6349 * @size: Size of the data buffer.
6350 * @rec_type: Record type to be searched.
6351 *
25985edc 6352 * This function searches config region data to find the beginning
6fb120a7
JS		 6353 * of the record specified by record_type. If record found, this
6354 * function return pointer to the record else return NULL.
6355 */
6356static uint8_t *
6357lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
6358{
6359 uint32_t offset = 0, rec_length;
6360
6361 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
6362 (size < sizeof(uint32_t)))
6363 return NULL;
6364
6365 rec_length = buff[offset + 1];
6366
6367 /*
6368 * One TLV record has one word header and number of data words
6369 * specified in the rec_length field of the record header.
6370 */
6371 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
6372 <= size) {
6373 if (buff[offset] == rec_type)
6374 return &buff[offset];
6375
6376 if (buff[offset] == LPFC_REGION23_LAST_REC)
6377 return NULL;
6378
6379 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
6380 rec_length = buff[offset + 1];
6381 }
6382 return NULL;
6383}
6384
6385/**
6386 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6387 * @phba: Pointer to lpfc_hba data structure.
6388 * @buff: Buffer containing config region 23 data.
6389 * @size: Size of the data buffer.
6390 *
eef35c2d 6391 * This function parses the FCoE config parameters in config region 23 and
6fb120a7
JS		 6392 * populate driver data structure with the parameters.
6393 */
6394void
6395lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
6396 uint8_t *buff,
6397 uint32_t size)
6398{
eb016566 6399 uint32_t offset = 0;
6fb120a7
JS		 6400 uint8_t *rec_ptr;
6401
6402 /*
6403 * If data size is less than 2 words signature and version cannot be
6404 * verified.
6405 */
6406 if (size < 2*sizeof(uint32_t))
6407 return;
6408
6409 /* Check the region signature first */
6410 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
6411 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6412 "2567 Config region 23 has bad signature\n");
6413 return;
6414 }
6415
6416 offset += 4;
6417
6418 /* Check the data structure version */
6419 if (buff[offset] != LPFC_REGION23_VERSION) {
6420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6421 "2568 Config region 23 has bad version\n");
6422 return;
6423 }
6424 offset += 4;
6425
6fb120a7
JS		 6426 /* Read FCoE param record */
6427 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6428 size - offset, FCOE_PARAM_TYPE);
6429 if (rec_ptr)
6430 lpfc_read_fcoe_param(phba, rec_ptr);
6431
6432 /* Read FCF connection table */
6433 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6434 size - offset, FCOE_CONN_TBL_TYPE);
6435 if (rec_ptr)
6436 lpfc_read_fcf_conn_tbl(phba, rec_ptr);
6437
6438}
Linux kernel - Deliverables
This page took 1.336609 seconds and 5 git commands to generate.