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drivers: power: report battery voltage in AOSP compatible format
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
CommitLineData
dea3101e
JB		 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
d4379acd 4 * Copyright (C) 2004-2012 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
JB		 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
JB		 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
a93ff37a 23#include <linux/delay.h>
5a0e3ad6 24#include <linux/slab.h>
dea3101e
JB		 25#include <linux/pci.h>
26#include <linux/kthread.h>
27#include <linux/interrupt.h>
28
91886523 29#include <scsi/scsi.h>
dea3101e
JB		 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
JB		 37#include "lpfc_disc.h"
38#include "lpfc_sli.h"
da0436e9 39#include "lpfc_sli4.h"
dea3101e
JB		 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
JB		 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
JB		 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;
858c9f6c 109 struct lpfc_hba *phba;
858c9f6c 110 struct lpfc_work_evt *evtp;
a8adb832
JS		 111 int put_node;
112 int put_rport;
c01f3208
JS		 113
114 rdata = rport->dd_data;
115 ndlp = rdata->pnode;
58da1ffb 116 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
c01f3208 117 return;
c01f3208 118
858c9f6c
JS		 119 vport = ndlp->vport;
120 phba = vport->phba;
121
122 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
123 "rport devlosscb: sid:x%x did:x%x flg:x%x",
124 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
125
34f5ad8b
JS		 126 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
127 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n",
128 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
129
a8adb832
JS		 130 /* Don't defer this if we are in the process of deleting the vport
131 * or unloading the driver. The unload will cleanup the node
132 * appropriately we just need to cleanup the ndlp rport info here.
133 */
134 if (vport->load_flag & FC_UNLOADING) {
135 put_node = rdata->pnode != NULL;
136 put_rport = ndlp->rport != NULL;
137 rdata->pnode = NULL;
138 ndlp->rport = NULL;
139 if (put_node)
140 lpfc_nlp_put(ndlp);
141 if (put_rport)
142 put_device(&rport->dev);
143 return;
144 }
145
146 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
147 return;
148
34f5ad8b
JS		 149 if (ndlp->nlp_type & NLP_FABRIC) {
150
151 /* If the WWPN of the rport and ndlp don't match, ignore it */
152 if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) {
153 put_device(&rport->dev);
154 return;
155 }
156 }
157
858c9f6c
JS		 158 evtp = &ndlp->dev_loss_evt;
159
160 if (!list_empty(&evtp->evt_listp))
161 return;
162
a62a435a
JS		 163 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
164
858c9f6c 165 spin_lock_irq(&phba->hbalock);
fa4066b6
JS		 166 /* We need to hold the node by incrementing the reference
167 * count until this queued work is done
168 */
5e9d9b82
JS		 169 if (evtp->evt_arg1) {
170 evtp->evt = LPFC_EVT_DEV_LOSS;
171 list_add_tail(&evtp->evt_listp, &phba->work_list);
172 lpfc_worker_wake_up(phba);
173 }
858c9f6c
JS		 174 spin_unlock_irq(&phba->hbalock);
175
858c9f6c
JS		 176 return;
177}
178
a93ff37a
JS		 179/**
180 * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
181 * @ndlp: Pointer to remote node object.
182 *
183 * This function is called from the worker thread when devloss timeout timer
184 * expires. For SLI4 host, this routine shall return 1 when at lease one
185 * remote node, including this @ndlp, is still in use of FCF; otherwise, this
186 * routine shall return 0 when there is no remote node is still in use of FCF
187 * when devloss timeout happened to this @ndlp.
188 **/
189static int
858c9f6c
JS		 190lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
191{
192 struct lpfc_rport_data *rdata;
193 struct fc_rport *rport;
194 struct lpfc_vport *vport;
195 struct lpfc_hba *phba;
196 uint8_t *name;
87af33fe
JS		 197 int put_node;
198 int put_rport;
858c9f6c 199 int warn_on = 0;
a93ff37a 200 int fcf_inuse = 0;
858c9f6c
JS		 201
202 rport = ndlp->rport;
203
204 if (!rport)
a93ff37a 205 return fcf_inuse;
858c9f6c
JS		 206
207 rdata = rport->dd_data;
208 name = (uint8_t *) &ndlp->nlp_portname;
209 vport = ndlp->vport;
210 phba = vport->phba;
211
a93ff37a
JS		 212 if (phba->sli_rev == LPFC_SLI_REV4)
213 fcf_inuse = lpfc_fcf_inuse(phba);
214
858c9f6c
JS		 215 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
216 "rport devlosstmo:did:x%x type:x%x id:x%x",
217 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
218
34f5ad8b
JS		 219 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
220 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n",
221 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
222
a8adb832
JS		 223 /* Don't defer this if we are in the process of deleting the vport
224 * or unloading the driver. The unload will cleanup the node
225 * appropriately we just need to cleanup the ndlp rport info here.
226 */
227 if (vport->load_flag & FC_UNLOADING) {
09372820
JS		 228 if (ndlp->nlp_sid != NLP_NO_SID) {
229 /* flush the target */
230 lpfc_sli_abort_iocb(vport,
231 &phba->sli.ring[phba->sli.fcp_ring],
232 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
233 }
a8adb832
JS		 234 put_node = rdata->pnode != NULL;
235 put_rport = ndlp->rport != NULL;
236 rdata->pnode = NULL;
237 ndlp->rport = NULL;
238 if (put_node)
239 lpfc_nlp_put(ndlp);
240 if (put_rport)
241 put_device(&rport->dev);
a93ff37a 242 return fcf_inuse;
a8adb832
JS		 243 }
244
d7c255b2
JS		 245 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
246 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
247 "0284 Devloss timeout Ignored on "
248 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
249 "NPort x%x\n",
250 *name, *(name+1), *(name+2), *(name+3),
251 *(name+4), *(name+5), *(name+6), *(name+7),
252 ndlp->nlp_DID);
a93ff37a 253 return fcf_inuse;
d7c255b2 254 }
858c9f6c 255
92d7f7b0
JS		 256 if (ndlp->nlp_type & NLP_FABRIC) {
257 /* We will clean up these Nodes in linkup */
258 put_node = rdata->pnode != NULL;
259 put_rport = ndlp->rport != NULL;
260 rdata->pnode = NULL;
261 ndlp->rport = NULL;
262 if (put_node)
263 lpfc_nlp_put(ndlp);
264 if (put_rport)
265 put_device(&rport->dev);
a93ff37a 266 return fcf_inuse;
92d7f7b0 267 }
82085718 268
dea3101e 269 if (ndlp->nlp_sid != NLP_NO_SID) {
6e8215e4 270 warn_on = 1;
dea3101e 271 /* flush the target */
51ef4c26
JS		 272 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
273 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
dea3101e 274 }
c01f3208 275
6e8215e4 276 if (warn_on) {
e8b62011
JS		 277 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
278 "0203 Devloss timeout on "
58da1ffb
JS		 279 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
280 "NPort x%06x Data: x%x x%x x%x\n",
e8b62011
JS		 281 *name, *(name+1), *(name+2), *(name+3),
282 *(name+4), *(name+5), *(name+6), *(name+7),
283 ndlp->nlp_DID, ndlp->nlp_flag,
284 ndlp->nlp_state, ndlp->nlp_rpi);
6e8215e4 285 } else {
e8b62011
JS		 286 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
287 "0204 Devloss timeout on "
58da1ffb
JS		 288 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
289 "NPort x%06x Data: x%x x%x x%x\n",
e8b62011
JS		 290 *name, *(name+1), *(name+2), *(name+3),
291 *(name+4), *(name+5), *(name+6), *(name+7),
292 ndlp->nlp_DID, ndlp->nlp_flag,
293 ndlp->nlp_state, ndlp->nlp_rpi);
6e8215e4
JSEC		 294 }
295
87af33fe
JS		 296 put_node = rdata->pnode != NULL;
297 put_rport = ndlp->rport != NULL;
298 rdata->pnode = NULL;
299 ndlp->rport = NULL;
300 if (put_node)
301 lpfc_nlp_put(ndlp);
302 if (put_rport)
303 put_device(&rport->dev);
304
2e0fef85 305 if (!(vport->load_flag & FC_UNLOADING) &&
1dcb58e5 306 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
82085718 307 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
ffc95493 308 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
589a52d6
JS		 309 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) &&
310 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE))
2e0fef85 311 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
6fb120a7 312
a93ff37a
JS		 313 return fcf_inuse;
314}
315
316/**
317 * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
318 * @phba: Pointer to hba context object.
319 * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
320 * @nlp_did: remote node identifer with devloss timeout.
321 *
322 * This function is called from the worker thread after invoking devloss
323 * timeout handler and releasing the reference count for the ndlp with
324 * which the devloss timeout was handled for SLI4 host. For the devloss
325 * timeout of the last remote node which had been in use of FCF, when this
326 * routine is invoked, it shall be guaranteed that none of the remote are
327 * in-use of FCF. When devloss timeout to the last remote using the FCF,
328 * if the FIP engine is neither in FCF table scan process nor roundrobin
329 * failover process, the in-use FCF shall be unregistered. If the FIP
330 * engine is in FCF discovery process, the devloss timeout state shall
331 * be set for either the FCF table scan process or roundrobin failover
332 * process to unregister the in-use FCF.
333 **/
334static void
335lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
336 uint32_t nlp_did)
337{
338 /* If devloss timeout happened to a remote node when FCF had no
339 * longer been in-use, do nothing.
340 */
341 if (!fcf_inuse)
342 return;
343
344 if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
345 spin_lock_irq(&phba->hbalock);
346 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
347 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
348 spin_unlock_irq(&phba->hbalock);
349 return;
350 }
351 phba->hba_flag |= HBA_DEVLOSS_TMO;
352 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
353 "2847 Last remote node (x%x) using "
354 "FCF devloss tmo\n", nlp_did);
355 }
356 if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
357 spin_unlock_irq(&phba->hbalock);
358 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
359 "2868 Devloss tmo to FCF rediscovery "
360 "in progress\n");
361 return;
362 }
363 if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
364 spin_unlock_irq(&phba->hbalock);
365 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
366 "2869 Devloss tmo to idle FIP engine, "
367 "unreg in-use FCF and rescan.\n");
368 /* Unregister in-use FCF and rescan */
369 lpfc_unregister_fcf_rescan(phba);
370 return;
371 }
372 spin_unlock_irq(&phba->hbalock);
373 if (phba->hba_flag & FCF_TS_INPROG)
374 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
375 "2870 FCF table scan in progress\n");
376 if (phba->hba_flag & FCF_RR_INPROG)
377 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
378 "2871 FLOGI roundrobin FCF failover "
379 "in progress\n");
380 }
6fb120a7 381 lpfc_unregister_unused_fcf(phba);
92d7f7b0 382}
c01f3208 383
ea2151b4 384/**
3621a710 385 * lpfc_alloc_fast_evt - Allocates data structure for posting event
ea2151b4
JS		 386 * @phba: Pointer to hba context object.
387 *
388 * This function is called from the functions which need to post
389 * events from interrupt context. This function allocates data
390 * structure required for posting event. It also keeps track of
391 * number of events pending and prevent event storm when there are
392 * too many events.
393 **/
394struct lpfc_fast_path_event *
395lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
396 struct lpfc_fast_path_event *ret;
397
398 /* If there are lot of fast event do not exhaust memory due to this */
399 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
400 return NULL;
401
402 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
403 GFP_ATOMIC);
6fb120a7 404 if (ret) {
ea2151b4 405 atomic_inc(&phba->fast_event_count);
6fb120a7
JS		 406 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
407 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
408 }
ea2151b4
JS		 409 return ret;
410}
411
412/**
3621a710 413 * lpfc_free_fast_evt - Frees event data structure
ea2151b4
JS		 414 * @phba: Pointer to hba context object.
415 * @evt: Event object which need to be freed.
416 *
417 * This function frees the data structure required for posting
418 * events.
419 **/
420void
421lpfc_free_fast_evt(struct lpfc_hba *phba,
422 struct lpfc_fast_path_event *evt) {
423
424 atomic_dec(&phba->fast_event_count);
425 kfree(evt);
426}
427
428/**
3621a710 429 * lpfc_send_fastpath_evt - Posts events generated from fast path
ea2151b4
JS		 430 * @phba: Pointer to hba context object.
431 * @evtp: Event data structure.
432 *
433 * This function is called from worker thread, when the interrupt
434 * context need to post an event. This function posts the event
435 * to fc transport netlink interface.
436 **/
437static void
438lpfc_send_fastpath_evt(struct lpfc_hba *phba,
439 struct lpfc_work_evt *evtp)
440{
441 unsigned long evt_category, evt_sub_category;
442 struct lpfc_fast_path_event *fast_evt_data;
443 char *evt_data;
444 uint32_t evt_data_size;
445 struct Scsi_Host *shost;
446
447 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
448 work_evt);
449
450 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
451 evt_sub_category = (unsigned long) fast_evt_data->un.
452 fabric_evt.subcategory;
453 shost = lpfc_shost_from_vport(fast_evt_data->vport);
454 if (evt_category == FC_REG_FABRIC_EVENT) {
455 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
456 evt_data = (char *) &fast_evt_data->un.read_check_error;
457 evt_data_size = sizeof(fast_evt_data->un.
458 read_check_error);
459 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
eaf15d5b 460 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
ea2151b4
JS		 461 evt_data = (char *) &fast_evt_data->un.fabric_evt;
462 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
463 } else {
464 lpfc_free_fast_evt(phba, fast_evt_data);
465 return;
466 }
467 } else if (evt_category == FC_REG_SCSI_EVENT) {
468 switch (evt_sub_category) {
469 case LPFC_EVENT_QFULL:
470 case LPFC_EVENT_DEVBSY:
471 evt_data = (char *) &fast_evt_data->un.scsi_evt;
472 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
473 break;
474 case LPFC_EVENT_CHECK_COND:
475 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
476 evt_data_size = sizeof(fast_evt_data->un.
477 check_cond_evt);
478 break;
479 case LPFC_EVENT_VARQUEDEPTH:
480 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
481 evt_data_size = sizeof(fast_evt_data->un.
482 queue_depth_evt);
483 break;
484 default:
485 lpfc_free_fast_evt(phba, fast_evt_data);
486 return;
487 }
488 } else {
489 lpfc_free_fast_evt(phba, fast_evt_data);
490 return;
491 }
492
493 fc_host_post_vendor_event(shost,
494 fc_get_event_number(),
495 evt_data_size,
496 evt_data,
ddcc50f0 497 LPFC_NL_VENDOR_ID);
ea2151b4
JS		 498
499 lpfc_free_fast_evt(phba, fast_evt_data);
500 return;
501}
502
dea3101e 503static void
2e0fef85 504lpfc_work_list_done(struct lpfc_hba *phba)
dea3101e
JB		 505{
506 struct lpfc_work_evt *evtp = NULL;
507 struct lpfc_nodelist *ndlp;
508 int free_evt;
a93ff37a
JS		 509 int fcf_inuse;
510 uint32_t nlp_did;
dea3101e 511
2e0fef85
JS		 512 spin_lock_irq(&phba->hbalock);
513 while (!list_empty(&phba->work_list)) {
dea3101e
JB		 514 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
515 evt_listp);
2e0fef85 516 spin_unlock_irq(&phba->hbalock);
dea3101e 517 free_evt = 1;
2fe165b6 518 switch (evtp->evt) {
dea3101e 519 case LPFC_EVT_ELS_RETRY:
2e0fef85 520 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
dea3101e 521 lpfc_els_retry_delay_handler(ndlp);
92d7f7b0 522 free_evt = 0; /* evt is part of ndlp */
fa4066b6
JS		 523 /* decrement the node reference count held
524 * for this queued work
525 */
526 lpfc_nlp_put(ndlp);
dea3101e 527 break;
858c9f6c
JS		 528 case LPFC_EVT_DEV_LOSS:
529 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
a93ff37a 530 fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
858c9f6c 531 free_evt = 0;
fa4066b6
JS		 532 /* decrement the node reference count held for
533 * this queued work
534 */
a93ff37a 535 nlp_did = ndlp->nlp_DID;
858c9f6c 536 lpfc_nlp_put(ndlp);
a93ff37a
JS		 537 if (phba->sli_rev == LPFC_SLI_REV4)
538 lpfc_sli4_post_dev_loss_tmo_handler(phba,
539 fcf_inuse,
540 nlp_did);
858c9f6c 541 break;
dea3101e 542 case LPFC_EVT_ONLINE:
2e0fef85
JS		 543 if (phba->link_state < LPFC_LINK_DOWN)
544 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
41415862 545 else
2e0fef85 546 *(int *) (evtp->evt_arg1) = 0;
dea3101e
JB		 547 complete((struct completion *)(evtp->evt_arg2));
548 break;
46fa311e 549 case LPFC_EVT_OFFLINE_PREP:
2e0fef85 550 if (phba->link_state >= LPFC_LINK_DOWN)
618a5230 551 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
46fa311e
JS		 552 *(int *)(evtp->evt_arg1) = 0;
553 complete((struct completion *)(evtp->evt_arg2));
554 break;
555 case LPFC_EVT_OFFLINE:
556 lpfc_offline(phba);
41415862
JW		 557 lpfc_sli_brdrestart(phba);
558 *(int *)(evtp->evt_arg1) =
46fa311e
JS		 559 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
560 lpfc_unblock_mgmt_io(phba);
41415862
JW		 561 complete((struct completion *)(evtp->evt_arg2));
562 break;
563 case LPFC_EVT_WARM_START:
46fa311e 564 lpfc_offline(phba);
9290831f 565 lpfc_reset_barrier(phba);
41415862
JW		 566 lpfc_sli_brdreset(phba);
567 lpfc_hba_down_post(phba);
568 *(int *)(evtp->evt_arg1) =
569 lpfc_sli_brdready(phba, HS_MBRDY);
46fa311e 570 lpfc_unblock_mgmt_io(phba);
41415862
JW		 571 complete((struct completion *)(evtp->evt_arg2));
572 break;
573 case LPFC_EVT_KILL:
46fa311e 574 lpfc_offline(phba);
9290831f 575 *(int *)(evtp->evt_arg1)
2e0fef85
JS		 576 = (phba->pport->stopped)
577 ? 0 : lpfc_sli_brdkill(phba);
46fa311e 578 lpfc_unblock_mgmt_io(phba);
dea3101e
JB		 579 complete((struct completion *)(evtp->evt_arg2));
580 break;
ea2151b4
JS		 581 case LPFC_EVT_FASTPATH_MGMT_EVT:
582 lpfc_send_fastpath_evt(phba, evtp);
583 free_evt = 0;
584 break;
78730cfe
JS		 585 case LPFC_EVT_RESET_HBA:
586 if (!(phba->pport->load_flag & FC_UNLOADING))
587 lpfc_reset_hba(phba);
588 break;
dea3101e
JB		 589 }
590 if (free_evt)
591 kfree(evtp);
2e0fef85 592 spin_lock_irq(&phba->hbalock);
dea3101e 593 }
2e0fef85 594 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 595
596}
597
311464ec 598static void
2e0fef85 599lpfc_work_done(struct lpfc_hba *phba)
dea3101e
JB		 600{
601 struct lpfc_sli_ring *pring;
858c9f6c 602 uint32_t ha_copy, status, control, work_port_events;
549e55cd 603 struct lpfc_vport **vports;
51ef4c26 604 struct lpfc_vport *vport;
549e55cd 605 int i;
dea3101e 606
2e0fef85 607 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 608 ha_copy = phba->work_ha;
609 phba->work_ha = 0;
2e0fef85 610 spin_unlock_irq(&phba->hbalock);
dea3101e 611
da0436e9
JS		 612 /* First, try to post the next mailbox command to SLI4 device */
613 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
614 lpfc_sli4_post_async_mbox(phba);
615
2fe165b6 616 if (ha_copy & HA_ERATT)
9399627f 617 /* Handle the error attention event */
dea3101e
JB		 618 lpfc_handle_eratt(phba);
619
2fe165b6 620 if (ha_copy & HA_MBATT)
dea3101e
JB		 621 lpfc_sli_handle_mb_event(phba);
622
2fe165b6 623 if (ha_copy & HA_LATT)
dea3101e 624 lpfc_handle_latt(phba);
9399627f 625
da0436e9
JS		 626 /* Process SLI4 events */
627 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
19ca7609
JS		 628 if (phba->hba_flag & HBA_RRQ_ACTIVE)
629 lpfc_handle_rrq_active(phba);
da0436e9
JS		 630 if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
631 lpfc_sli4_fcp_xri_abort_event_proc(phba);
632 if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
633 lpfc_sli4_els_xri_abort_event_proc(phba);
634 if (phba->hba_flag & ASYNC_EVENT)
635 lpfc_sli4_async_event_proc(phba);
636 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
637 spin_lock_irq(&phba->hbalock);
638 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
639 spin_unlock_irq(&phba->hbalock);
640 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
641 }
ecfd03c6
JS		 642 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
643 lpfc_sli4_fcf_redisc_event_proc(phba);
da0436e9
JS		 644 }
645
549e55cd
JS		 646 vports = lpfc_create_vport_work_array(phba);
647 if (vports != NULL)
da0436e9 648 for (i = 0; i <= phba->max_vports; i++) {
51ef4c26
JS		 649 /*
650 * We could have no vports in array if unloading, so if
651 * this happens then just use the pport
652 */
653 if (vports[i] == NULL && i == 0)
654 vport = phba->pport;
655 else
656 vport = vports[i];
657 if (vport == NULL)
658 break;
58da1ffb 659 spin_lock_irq(&vport->work_port_lock);
51ef4c26 660 work_port_events = vport->work_port_events;
58da1ffb
JS		 661 vport->work_port_events &= ~work_port_events;
662 spin_unlock_irq(&vport->work_port_lock);
549e55cd 663 if (work_port_events & WORKER_DISC_TMO)
51ef4c26 664 lpfc_disc_timeout_handler(vport);
549e55cd 665 if (work_port_events & WORKER_ELS_TMO)
51ef4c26 666 lpfc_els_timeout_handler(vport);
549e55cd
JS		 667 if (work_port_events & WORKER_HB_TMO)
668 lpfc_hb_timeout_handler(phba);
669 if (work_port_events & WORKER_MBOX_TMO)
670 lpfc_mbox_timeout_handler(phba);
671 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
672 lpfc_unblock_fabric_iocbs(phba);
673 if (work_port_events & WORKER_FDMI_TMO)
51ef4c26 674 lpfc_fdmi_timeout_handler(vport);
549e55cd
JS		 675 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
676 lpfc_ramp_down_queue_handler(phba);
677 if (work_port_events & WORKER_RAMP_UP_QUEUE)
678 lpfc_ramp_up_queue_handler(phba);
92494144
JS		 679 if (work_port_events & WORKER_DELAYED_DISC_TMO)
680 lpfc_delayed_disc_timeout_handler(vport);
92d7f7b0 681 }
09372820 682 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 683
858c9f6c
JS		 684 pring = &phba->sli.ring[LPFC_ELS_RING];
685 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
686 status >>= (4*LPFC_ELS_RING);
4d9ab994
JS		 687 if ((status & HA_RXMASK) ||
688 (pring->flag & LPFC_DEFERRED_RING_EVENT) ||
45ed1190 689 (phba->hba_flag & HBA_SP_QUEUE_EVT)) {
0b727fea 690 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
858c9f6c 691 pring->flag |= LPFC_DEFERRED_RING_EVENT;
5e9d9b82
JS		 692 /* Set the lpfc data pending flag */
693 set_bit(LPFC_DATA_READY, &phba->data_flags);
858c9f6c 694 } else {
94661504
JS		 695 if (phba->link_state >= LPFC_LINK_UP) {
696 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
697 lpfc_sli_handle_slow_ring_event(phba, pring,
698 (status &
699 HA_RXMASK));
700 }
858c9f6c 701 }
0e9bb8d7
JS		 702 if ((phba->sli_rev == LPFC_SLI_REV4) &
703 (!list_empty(&pring->txq)))
2a9bf3d0 704 lpfc_drain_txq(phba);
858c9f6c
JS		 705 /*
706 * Turn on Ring interrupts
707 */
3772a991
JS		 708 if (phba->sli_rev <= LPFC_SLI_REV3) {
709 spin_lock_irq(&phba->hbalock);
710 control = readl(phba->HCregaddr);
711 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
712 lpfc_debugfs_slow_ring_trc(phba,
713 "WRK Enable ring: cntl:x%x hacopy:x%x",
714 control, ha_copy, 0);
715
716 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
717 writel(control, phba->HCregaddr);
718 readl(phba->HCregaddr); /* flush */
719 } else {
720 lpfc_debugfs_slow_ring_trc(phba,
721 "WRK Ring ok: cntl:x%x hacopy:x%x",
722 control, ha_copy, 0);
723 }
724 spin_unlock_irq(&phba->hbalock);
a58cbd52 725 }
dea3101e 726 }
2e0fef85 727 lpfc_work_list_done(phba);
dea3101e
JB		 728}
729
dea3101e
JB		 730int
731lpfc_do_work(void *p)
732{
733 struct lpfc_hba *phba = p;
734 int rc;
dea3101e
JB		 735
736 set_user_nice(current, -20);
043c956f 737 current->flags |= PF_NOFREEZE;
5e9d9b82 738 phba->data_flags = 0;
dea3101e 739
3a55b532 740 while (!kthread_should_stop()) {
5e9d9b82
JS		 741 /* wait and check worker queue activities */
742 rc = wait_event_interruptible(phba->work_waitq,
743 (test_and_clear_bit(LPFC_DATA_READY,
744 &phba->data_flags)
745 || kthread_should_stop()));
3a55b532
JS		 746 /* Signal wakeup shall terminate the worker thread */
747 if (rc) {
748 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
749 "0433 Wakeup on signal: rc=x%x\n", rc);
dea3101e 750 break;
3a55b532 751 }
dea3101e 752
5e9d9b82 753 /* Attend pending lpfc data processing */
dea3101e 754 lpfc_work_done(phba);
dea3101e 755 }
3a55b532
JS		 756 phba->worker_thread = NULL;
757 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
758 "0432 Worker thread stopped.\n");
dea3101e
JB		 759 return 0;
760}
761
762/*
763 * This is only called to handle FC worker events. Since this a rare
25985edc 764 * occurrence, we allocate a struct lpfc_work_evt structure here instead of
dea3101e
JB		 765 * embedding it in the IOCB.
766 */
767int
2e0fef85 768lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
dea3101e
JB		 769 uint32_t evt)
770{
771 struct lpfc_work_evt *evtp;
ed957684 772 unsigned long flags;
dea3101e
JB		 773
774 /*
775 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
776 * be queued to worker thread for processing
777 */
92d7f7b0 778 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
dea3101e
JB		 779 if (!evtp)
780 return 0;
781
782 evtp->evt_arg1 = arg1;
783 evtp->evt_arg2 = arg2;
784 evtp->evt = evt;
785
ed957684 786 spin_lock_irqsave(&phba->hbalock, flags);
071fbd3d 787 list_add_tail(&evtp->evt_listp, &phba->work_list);
ed957684 788 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e 789
5e9d9b82
JS		 790 lpfc_worker_wake_up(phba);
791
dea3101e
JB		 792 return 1;
793}
794
92d7f7b0
JS		 795void
796lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
797{
09372820 798 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0
JS		 799 struct lpfc_hba *phba = vport->phba;
800 struct lpfc_nodelist *ndlp, *next_ndlp;
801 int rc;
802
803 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 804 if (!NLP_CHK_NODE_ACT(ndlp))
805 continue;
92d7f7b0
JS		 806 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
807 continue;
98c9ea5c
JS		 808 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
809 ((vport->port_type == LPFC_NPIV_PORT) &&
810 (ndlp->nlp_DID == NameServer_DID)))
92d7f7b0
JS		 811 lpfc_unreg_rpi(vport, ndlp);
812
813 /* Leave Fabric nodes alone on link down */
4d9ab994
JS		 814 if ((phba->sli_rev < LPFC_SLI_REV4) &&
815 (!remove && ndlp->nlp_type & NLP_FABRIC))
92d7f7b0
JS		 816 continue;
817 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
818 remove
819 ? NLP_EVT_DEVICE_RM
820 : NLP_EVT_DEVICE_RECOVERY);
821 }
822 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
5af5eee7
JS		 823 if (phba->sli_rev == LPFC_SLI_REV4)
824 lpfc_sli4_unreg_all_rpis(vport);
92d7f7b0 825 lpfc_mbx_unreg_vpi(vport);
09372820 826 spin_lock_irq(shost->host_lock);
92d7f7b0 827 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
09372820 828 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS		 829 }
830}
831
87af33fe 832void
98c9ea5c 833lpfc_port_link_failure(struct lpfc_vport *vport)
92d7f7b0 834{
695a814e
JS		 835 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
836
45ed1190
JS		 837 /* Cleanup any outstanding received buffers */
838 lpfc_cleanup_rcv_buffers(vport);
839
92d7f7b0
JS		 840 /* Cleanup any outstanding RSCN activity */
841 lpfc_els_flush_rscn(vport);
842
843 /* Cleanup any outstanding ELS commands */
844 lpfc_els_flush_cmd(vport);
845
846 lpfc_cleanup_rpis(vport, 0);
847
92d7f7b0
JS		 848 /* Turn off discovery timer if its running */
849 lpfc_can_disctmo(vport);
850}
851
3772a991 852void
98c9ea5c
JS		 853lpfc_linkdown_port(struct lpfc_vport *vport)
854{
855 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
856
857 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
858
859 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
860 "Link Down: state:x%x rtry:x%x flg:x%x",
861 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
862
863 lpfc_port_link_failure(vport);
864
92494144
JS		 865 /* Stop delayed Nport discovery */
866 spin_lock_irq(shost->host_lock);
867 vport->fc_flag &= ~FC_DISC_DELAYED;
868 spin_unlock_irq(shost->host_lock);
869 del_timer_sync(&vport->delayed_disc_tmo);
98c9ea5c
JS		 870}
871
dea3101e 872int
685f0bf7 873lpfc_linkdown(struct lpfc_hba *phba)
dea3101e 874{
2e0fef85
JS		 875 struct lpfc_vport *vport = phba->pport;
876 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
549e55cd 877 struct lpfc_vport **vports;
685f0bf7 878 LPFC_MBOXQ_t *mb;
549e55cd 879 int i;
dea3101e 880
3163f725 881 if (phba->link_state == LPFC_LINK_DOWN)
2e0fef85 882 return 0;
aacc20e3
JS		 883
884 /* Block all SCSI stack I/Os */
885 lpfc_scsi_dev_block(phba);
886
2e0fef85 887 spin_lock_irq(&phba->hbalock);
ecfd03c6 888 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
72100cc4 889 spin_unlock_irq(&phba->hbalock);
92d7f7b0 890 if (phba->link_state > LPFC_LINK_DOWN) {
2e0fef85 891 phba->link_state = LPFC_LINK_DOWN;
72100cc4 892 spin_lock_irq(shost->host_lock);
92d7f7b0 893 phba->pport->fc_flag &= ~FC_LBIT;
72100cc4 894 spin_unlock_irq(shost->host_lock);
92d7f7b0 895 }
549e55cd
JS		 896 vports = lpfc_create_vport_work_array(phba);
897 if (vports != NULL)
6fb120a7 898 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd
JS		 899 /* Issue a LINK DOWN event to all nodes */
900 lpfc_linkdown_port(vports[i]);
901 }
09372820 902 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 903 /* Clean up any firmware default rpi's */
2e0fef85
JS		 904 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
905 if (mb) {
6d368e53 906 lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
ed957684 907 mb->vport = vport;
2e0fef85 908 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 909 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
dea3101e 910 == MBX_NOT_FINISHED) {
2e0fef85 911 mempool_free(mb, phba->mbox_mem_pool);
dea3101e
JB		 912 }
913 }
914
dea3101e 915 /* Setup myDID for link up if we are in pt2pt mode */
92d7f7b0
JS		 916 if (phba->pport->fc_flag & FC_PT2PT) {
917 phba->pport->fc_myDID = 0;
2e0fef85
JS		 918 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
919 if (mb) {
dea3101e 920 lpfc_config_link(phba, mb);
92d7f7b0 921 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
ed957684 922 mb->vport = vport;
0b727fea 923 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
dea3101e 924 == MBX_NOT_FINISHED) {
2e0fef85 925 mempool_free(mb, phba->mbox_mem_pool);
dea3101e
JB		 926 }
927 }
2e0fef85 928 spin_lock_irq(shost->host_lock);
92d7f7b0 929 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
2e0fef85 930 spin_unlock_irq(shost->host_lock);
dea3101e 931 }
2e0fef85 932
92d7f7b0
JS		 933 return 0;
934}
dea3101e 935
92d7f7b0
JS		 936static void
937lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
938{
939 struct lpfc_nodelist *ndlp;
dea3101e 940
92d7f7b0 941 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 942 if (!NLP_CHK_NODE_ACT(ndlp))
943 continue;
92d7f7b0
JS		 944 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
945 continue;
92d7f7b0 946 if (ndlp->nlp_type & NLP_FABRIC) {
e47c9093
JS		 947 /* On Linkup its safe to clean up the ndlp
948 * from Fabric connections.
949 */
92d7f7b0
JS		 950 if (ndlp->nlp_DID != Fabric_DID)
951 lpfc_unreg_rpi(vport, ndlp);
952 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
953 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
e47c9093
JS		 954 /* Fail outstanding IO now since device is
955 * marked for PLOGI.
956 */
92d7f7b0
JS		 957 lpfc_unreg_rpi(vport, ndlp);
958 }
959 }
dea3101e
JB		 960}
961
92d7f7b0
JS		 962static void
963lpfc_linkup_port(struct lpfc_vport *vport)
dea3101e 964{
92d7f7b0 965 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0
JS		 966 struct lpfc_hba *phba = vport->phba;
967
968 if ((vport->load_flag & FC_UNLOADING) != 0)
969 return;
970
858c9f6c
JS		 971 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
972 "Link Up: top:x%x speed:x%x flg:x%x",
973 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
974
92d7f7b0
JS		 975 /* If NPIV is not enabled, only bring the physical port up */
976 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
977 (vport != phba->pport))
978 return;
dea3101e 979
2e0fef85 980 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
d2873e4c 981
2e0fef85 982 spin_lock_irq(shost->host_lock);
2e0fef85
JS		 983 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
984 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
985 vport->fc_flag |= FC_NDISC_ACTIVE;
986 vport->fc_ns_retry = 0;
987 spin_unlock_irq(shost->host_lock);
dea3101e 988
92d7f7b0
JS		 989 if (vport->fc_flag & FC_LBIT)
990 lpfc_linkup_cleanup_nodes(vport);
dea3101e 991
92d7f7b0
JS		 992}
993
994static int
995lpfc_linkup(struct lpfc_hba *phba)
996{
549e55cd
JS		 997 struct lpfc_vport **vports;
998 int i;
92d7f7b0 999
19ca7609 1000 lpfc_cleanup_wt_rrqs(phba);
92d7f7b0
JS		 1001 phba->link_state = LPFC_LINK_UP;
1002
1003 /* Unblock fabric iocbs if they are blocked */
1004 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
1005 del_timer_sync(&phba->fabric_block_timer);
1006
549e55cd
JS		 1007 vports = lpfc_create_vport_work_array(phba);
1008 if (vports != NULL)
6fb120a7 1009 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
549e55cd 1010 lpfc_linkup_port(vports[i]);
09372820 1011 lpfc_destroy_vport_work_array(phba, vports);
dea3101e
JB		 1012
1013 return 0;
1014}
1015
1016/*
1017 * This routine handles processing a CLEAR_LA mailbox
1018 * command upon completion. It is setup in the LPFC_MBOXQ
1019 * as the completion routine when the command is
1020 * handed off to the SLI layer.
1021 */
a6ababd2 1022static void
2e0fef85 1023lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1024{
2e0fef85
JS		 1025 struct lpfc_vport *vport = pmb->vport;
1026 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1027 struct lpfc_sli *psli = &phba->sli;
04c68496 1028 MAILBOX_t *mb = &pmb->u.mb;
dea3101e
JB		 1029 uint32_t control;
1030
dea3101e 1031 /* Since we don't do discovery right now, turn these off here */
a4bc3379 1032 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e
JB		 1033 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1034 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
1035
1036 /* Check for error */
1037 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
92d7f7b0 1038 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 1039 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1040 "0320 CLEAR_LA mbxStatus error x%x hba "
1041 "state x%x\n",
1042 mb->mbxStatus, vport->port_state);
2e0fef85 1043 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 1044 goto out;
1045 }
1046
92d7f7b0
JS		 1047 if (vport->port_type == LPFC_PHYSICAL_PORT)
1048 phba->link_state = LPFC_HBA_READY;
1049
1050 spin_lock_irq(&phba->hbalock);
1051 psli->sli_flag |= LPFC_PROCESS_LA;
1052 control = readl(phba->HCregaddr);
1053 control |= HC_LAINT_ENA;
1054 writel(control, phba->HCregaddr);
1055 readl(phba->HCregaddr); /* flush */
1056 spin_unlock_irq(&phba->hbalock);
1b32f6aa 1057 mempool_free(pmb, phba->mbox_mem_pool);
92d7f7b0 1058 return;
dea3101e 1059
dea3101e
JB		 1060out:
1061 /* Device Discovery completes */
e8b62011
JS		 1062 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1063 "0225 Device Discovery completes\n");
2e0fef85 1064 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1065
2e0fef85 1066 spin_lock_irq(shost->host_lock);
58da1ffb 1067 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
2e0fef85 1068 spin_unlock_irq(shost->host_lock);
dea3101e 1069
2e0fef85 1070 lpfc_can_disctmo(vport);
dea3101e
JB		 1071
1072 /* turn on Link Attention interrupts */
2e0fef85
JS		 1073
1074 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 1075 psli->sli_flag |= LPFC_PROCESS_LA;
1076 control = readl(phba->HCregaddr);
1077 control |= HC_LAINT_ENA;
1078 writel(control, phba->HCregaddr);
1079 readl(phba->HCregaddr); /* flush */
2e0fef85 1080 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 1081
1082 return;
1083}
1084
2e0fef85 1085
dea3101e 1086static void
25594c6b 1087lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1088{
2e0fef85 1089 struct lpfc_vport *vport = pmb->vport;
dea3101e 1090
04c68496 1091 if (pmb->u.mb.mbxStatus)
dea3101e 1092 goto out;
dea3101e 1093
25594c6b
JW		 1094 mempool_free(pmb, phba->mbox_mem_pool);
1095
1b51197d
JS		 1096 /* don't perform discovery for SLI4 loopback diagnostic test */
1097 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1098 !(phba->hba_flag & HBA_FCOE_MODE) &&
1099 (phba->link_flag & LS_LOOPBACK_MODE))
1100 return;
1101
76a95d75 1102 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
2e0fef85
JS		 1103 vport->fc_flag & FC_PUBLIC_LOOP &&
1104 !(vport->fc_flag & FC_LBIT)) {
25594c6b 1105 /* Need to wait for FAN - use discovery timer
2e0fef85 1106 * for timeout. port_state is identically
25594c6b
JW		 1107 * LPFC_LOCAL_CFG_LINK while waiting for FAN
1108 */
2e0fef85 1109 lpfc_set_disctmo(vport);
25594c6b 1110 return;
92d7f7b0 1111 }
dea3101e 1112
2e0fef85 1113 /* Start discovery by sending a FLOGI. port_state is identically
25594c6b
JW		 1114 * LPFC_FLOGI while waiting for FLOGI cmpl
1115 */
e6446439 1116 if (vport->port_state != LPFC_FLOGI || vport->fc_flag & FC_PT2PT_PLOGI)
92d7f7b0 1117 lpfc_initial_flogi(vport);
25594c6b 1118 return;
dea3101e
JB		 1119
1120out:
e8b62011
JS		 1121 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1122 "0306 CONFIG_LINK mbxStatus error x%x "
1123 "HBA state x%x\n",
04c68496 1124 pmb->u.mb.mbxStatus, vport->port_state);
92d7f7b0 1125 mempool_free(pmb, phba->mbox_mem_pool);
25594c6b 1126
92d7f7b0 1127 lpfc_linkdown(phba);
25594c6b 1128
e8b62011
JS		 1129 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1130 "0200 CONFIG_LINK bad hba state x%x\n",
1131 vport->port_state);
dea3101e 1132
92d7f7b0 1133 lpfc_issue_clear_la(phba, vport);
dea3101e
JB		 1134 return;
1135}
1136
7d791df7
JS		 1137/**
1138 * lpfc_sli4_clear_fcf_rr_bmask
1139 * @phba pointer to the struct lpfc_hba for this port.
1140 * This fucnction resets the round robin bit mask and clears the
1141 * fcf priority list. The list deletions are done while holding the
1142 * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
1143 * from the lpfc_fcf_pri record.
1144 **/
1145void
1146lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
1147{
1148 struct lpfc_fcf_pri *fcf_pri;
1149 struct lpfc_fcf_pri *next_fcf_pri;
1150 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
1151 spin_lock_irq(&phba->hbalock);
1152 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
1153 &phba->fcf.fcf_pri_list, list) {
1154 list_del_init(&fcf_pri->list);
1155 fcf_pri->fcf_rec.flag = 0;
1156 }
1157 spin_unlock_irq(&phba->hbalock);
1158}
6fb120a7
JS		 1159static void
1160lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1161{
1162 struct lpfc_vport *vport = mboxq->vport;
6fb120a7
JS		 1163
1164 if (mboxq->u.mb.mbxStatus) {
1165 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1166 "2017 REG_FCFI mbxStatus error x%x "
1167 "HBA state x%x\n",
1168 mboxq->u.mb.mbxStatus, vport->port_state);
a93ff37a 1169 goto fail_out;
6fb120a7
JS		 1170 }
1171
1172 /* Start FCoE discovery by sending a FLOGI. */
1173 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1174 /* Set the FCFI registered flag */
d439d286 1175 spin_lock_irq(&phba->hbalock);
6fb120a7 1176 phba->fcf.fcf_flag |= FCF_REGISTERED;
d439d286 1177 spin_unlock_irq(&phba->hbalock);
a93ff37a 1178
32b9793f 1179 /* If there is a pending FCoE event, restart FCF table scan. */
7d791df7
JS		 1180 if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
1181 lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
a93ff37a
JS		 1182 goto fail_out;
1183
1184 /* Mark successful completion of FCF table scan */
d439d286 1185 spin_lock_irq(&phba->hbalock);
ecfd03c6 1186 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
a93ff37a
JS		 1187 phba->hba_flag &= ~FCF_TS_INPROG;
1188 if (vport->port_state != LPFC_FLOGI) {
1189 phba->hba_flag |= FCF_RR_INPROG;
1190 spin_unlock_irq(&phba->hbalock);
76a95d75 1191 lpfc_issue_init_vfi(vport);
a93ff37a
JS		 1192 goto out;
1193 }
1194 spin_unlock_irq(&phba->hbalock);
1195 goto out;
6fb120a7 1196
a93ff37a
JS		 1197fail_out:
1198 spin_lock_irq(&phba->hbalock);
1199 phba->hba_flag &= ~FCF_RR_INPROG;
1200 spin_unlock_irq(&phba->hbalock);
1201out:
6fb120a7 1202 mempool_free(mboxq, phba->mbox_mem_pool);
6fb120a7
JS		 1203}
1204
1205/**
1206 * lpfc_fab_name_match - Check if the fcf fabric name match.
1207 * @fab_name: pointer to fabric name.
1208 * @new_fcf_record: pointer to fcf record.
1209 *
1210 * This routine compare the fcf record's fabric name with provided
1211 * fabric name. If the fabric name are identical this function
1212 * returns 1 else return 0.
1213 **/
1214static uint32_t
1215lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1216{
ecfd03c6
JS		 1217 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1218 return 0;
1219 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1220 return 0;
1221 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1222 return 0;
1223 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1224 return 0;
1225 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1226 return 0;
1227 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
6fb120a7 1228 return 0;
ecfd03c6
JS		 1229 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1230 return 0;
1231 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1232 return 0;
1233 return 1;
6fb120a7
JS		 1234}
1235
8fa38513
JS		 1236/**
1237 * lpfc_sw_name_match - Check if the fcf switch name match.
1238 * @fab_name: pointer to fabric name.
1239 * @new_fcf_record: pointer to fcf record.
1240 *
1241 * This routine compare the fcf record's switch name with provided
1242 * switch name. If the switch name are identical this function
1243 * returns 1 else return 0.
1244 **/
1245static uint32_t
1246lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1247{
ecfd03c6
JS		 1248 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1249 return 0;
1250 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1251 return 0;
1252 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
8fa38513 1253 return 0;
ecfd03c6
JS		 1254 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1255 return 0;
1256 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1257 return 0;
1258 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1259 return 0;
1260 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1261 return 0;
1262 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1263 return 0;
1264 return 1;
8fa38513
JS		 1265}
1266
6fb120a7
JS		 1267/**
1268 * lpfc_mac_addr_match - Check if the fcf mac address match.
ecfd03c6 1269 * @mac_addr: pointer to mac address.
6fb120a7
JS		 1270 * @new_fcf_record: pointer to fcf record.
1271 *
1272 * This routine compare the fcf record's mac address with HBA's
1273 * FCF mac address. If the mac addresses are identical this function
1274 * returns 1 else return 0.
1275 **/
1276static uint32_t
ecfd03c6 1277lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
6fb120a7 1278{
ecfd03c6
JS		 1279 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1280 return 0;
1281 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1282 return 0;
1283 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1284 return 0;
1285 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1286 return 0;
1287 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1288 return 0;
1289 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
6fb120a7 1290 return 0;
ecfd03c6
JS		 1291 return 1;
1292}
1293
1294static bool
1295lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1296{
1297 return (curr_vlan_id == new_vlan_id);
6fb120a7
JS		 1298}
1299
7d791df7
JS		 1300/**
1301 * lpfc_update_fcf_record - Update driver fcf record
1302 * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
1303 * @phba: pointer to lpfc hba data structure.
1304 * @fcf_index: Index for the lpfc_fcf_record.
1305 * @new_fcf_record: pointer to hba fcf record.
1306 *
1307 * This routine updates the driver FCF priority record from the new HBA FCF
1308 * record. This routine is called with the host lock held.
1309 **/
1310static void
1311__lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
1312 struct fcf_record *new_fcf_record
1313 )
1314{
1315 struct lpfc_fcf_pri *fcf_pri;
1316
1317 fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1318 fcf_pri->fcf_rec.fcf_index = fcf_index;
1319 /* FCF record priority */
1320 fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
1321
1322}
1323
6fb120a7
JS		 1324/**
1325 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
ecfd03c6 1326 * @fcf: pointer to driver fcf record.
6fb120a7
JS		 1327 * @new_fcf_record: pointer to fcf record.
1328 *
1329 * This routine copies the FCF information from the FCF
1330 * record to lpfc_hba data structure.
1331 **/
1332static void
ecfd03c6
JS		 1333lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1334 struct fcf_record *new_fcf_record)
6fb120a7 1335{
ecfd03c6
JS		 1336 /* Fabric name */
1337 fcf_rec->fabric_name[0] =
6fb120a7 1338 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
ecfd03c6 1339 fcf_rec->fabric_name[1] =
6fb120a7 1340 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
ecfd03c6 1341 fcf_rec->fabric_name[2] =
6fb120a7 1342 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
ecfd03c6 1343 fcf_rec->fabric_name[3] =
6fb120a7 1344 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
ecfd03c6 1345 fcf_rec->fabric_name[4] =
6fb120a7 1346 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
ecfd03c6 1347 fcf_rec->fabric_name[5] =
6fb120a7 1348 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
ecfd03c6 1349 fcf_rec->fabric_name[6] =
6fb120a7 1350 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
ecfd03c6 1351 fcf_rec->fabric_name[7] =
6fb120a7 1352 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
ecfd03c6
JS		 1353 /* Mac address */
1354 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1355 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1356 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1357 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1358 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1359 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1360 /* FCF record index */
1361 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1362 /* FCF record priority */
1363 fcf_rec->priority = new_fcf_record->fip_priority;
1364 /* Switch name */
1365 fcf_rec->switch_name[0] =
8fa38513 1366 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
ecfd03c6 1367 fcf_rec->switch_name[1] =
8fa38513 1368 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
ecfd03c6 1369 fcf_rec->switch_name[2] =
8fa38513 1370 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
ecfd03c6 1371 fcf_rec->switch_name[3] =
8fa38513 1372 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
ecfd03c6 1373 fcf_rec->switch_name[4] =
8fa38513 1374 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
ecfd03c6 1375 fcf_rec->switch_name[5] =
8fa38513 1376 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
ecfd03c6 1377 fcf_rec->switch_name[6] =
8fa38513 1378 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
ecfd03c6 1379 fcf_rec->switch_name[7] =
8fa38513 1380 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
6fb120a7
JS		 1381}
1382
ecfd03c6
JS		 1383/**
1384 * lpfc_update_fcf_record - Update driver fcf record
1385 * @phba: pointer to lpfc hba data structure.
1386 * @fcf_rec: pointer to driver fcf record.
1387 * @new_fcf_record: pointer to hba fcf record.
1388 * @addr_mode: address mode to be set to the driver fcf record.
1389 * @vlan_id: vlan tag to be set to the driver fcf record.
1390 * @flag: flag bits to be set to the driver fcf record.
1391 *
1392 * This routine updates the driver FCF record from the new HBA FCF record
1393 * together with the address mode, vlan_id, and other informations. This
1394 * routine is called with the host lock held.
1395 **/
1396static void
1397__lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1398 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1399 uint16_t vlan_id, uint32_t flag)
1400{
1401 /* Copy the fields from the HBA's FCF record */
1402 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1403 /* Update other fields of driver FCF record */
1404 fcf_rec->addr_mode = addr_mode;
1405 fcf_rec->vlan_id = vlan_id;
1406 fcf_rec->flag |= (flag | RECORD_VALID);
7d791df7
JS		 1407 __lpfc_update_fcf_record_pri(phba,
1408 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
1409 new_fcf_record);
ecfd03c6
JS		 1410}
1411
6fb120a7
JS		 1412/**
1413 * lpfc_register_fcf - Register the FCF with hba.
1414 * @phba: pointer to lpfc hba data structure.
1415 *
1416 * This routine issues a register fcfi mailbox command to register
1417 * the fcf with HBA.
1418 **/
1419static void
1420lpfc_register_fcf(struct lpfc_hba *phba)
1421{
1422 LPFC_MBOXQ_t *fcf_mbxq;
1423 int rc;
6fb120a7 1424
d439d286 1425 spin_lock_irq(&phba->hbalock);
25985edc 1426 /* If the FCF is not available do nothing. */
6fb120a7 1427 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
a93ff37a 1428 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
d439d286 1429 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 1430 return;
1431 }
1432
1433 /* The FCF is already registered, start discovery */
1434 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
ecfd03c6 1435 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
a93ff37a 1436 phba->hba_flag &= ~FCF_TS_INPROG;
e74c03c8
JS		 1437 if (phba->pport->port_state != LPFC_FLOGI &&
1438 phba->pport->fc_flag & FC_FABRIC) {
a93ff37a
JS		 1439 phba->hba_flag |= FCF_RR_INPROG;
1440 spin_unlock_irq(&phba->hbalock);
bf08611b 1441 lpfc_initial_flogi(phba->pport);
a93ff37a
JS		 1442 return;
1443 }
1444 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 1445 return;
1446 }
d439d286 1447 spin_unlock_irq(&phba->hbalock);
6fb120a7 1448
a93ff37a 1449 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4d9ab994 1450 if (!fcf_mbxq) {
d439d286 1451 spin_lock_irq(&phba->hbalock);
a93ff37a 1452 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
d439d286 1453 spin_unlock_irq(&phba->hbalock);
6fb120a7 1454 return;
4d9ab994 1455 }
6fb120a7
JS		 1456
1457 lpfc_reg_fcfi(phba, fcf_mbxq);
1458 fcf_mbxq->vport = phba->pport;
1459 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1460 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
4d9ab994 1461 if (rc == MBX_NOT_FINISHED) {
d439d286 1462 spin_lock_irq(&phba->hbalock);
a93ff37a 1463 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
d439d286 1464 spin_unlock_irq(&phba->hbalock);
6fb120a7 1465 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
4d9ab994 1466 }
6fb120a7
JS		 1467
1468 return;
1469}
1470
1471/**
1472 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1473 * @phba: pointer to lpfc hba data structure.
1474 * @new_fcf_record: pointer to fcf record.
1475 * @boot_flag: Indicates if this record used by boot bios.
1476 * @addr_mode: The address mode to be used by this FCF
ecfd03c6 1477 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
6fb120a7
JS		 1478 *
1479 * This routine compare the fcf record with connect list obtained from the
1480 * config region to decide if this FCF can be used for SAN discovery. It returns
1481 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1482 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1483 * is used by boot bios and addr_mode will indicate the addressing mode to be
1484 * used for this FCF when the function returns.
1485 * If the FCF record need to be used with a particular vlan id, the vlan is
1486 * set in the vlan_id on return of the function. If not VLAN tagging need to
dbb6b3ab 1487 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
6fb120a7
JS		 1488 **/
1489static int
1490lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1491 struct fcf_record *new_fcf_record,
1492 uint32_t *boot_flag, uint32_t *addr_mode,
1493 uint16_t *vlan_id)
1494{
1495 struct lpfc_fcf_conn_entry *conn_entry;
4d9ab994
JS		 1496 int i, j, fcf_vlan_id = 0;
1497
1498 /* Find the lowest VLAN id in the FCF record */
1499 for (i = 0; i < 512; i++) {
1500 if (new_fcf_record->vlan_bitmap[i]) {
1501 fcf_vlan_id = i * 8;
1502 j = 0;
1503 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1504 j++;
1505 fcf_vlan_id++;
1506 }
1507 break;
1508 }
1509 }
6fb120a7 1510
26979ced 1511 /* FCF not valid/available or solicitation in progress */
0c287589 1512 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
26979ced
JS		 1513 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||
1514 bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))
0c287589
JS		 1515 return 0;
1516
45ed1190 1517 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
6fb120a7
JS		 1518 *boot_flag = 0;
1519 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1520 new_fcf_record);
1521 if (phba->valid_vlan)
1522 *vlan_id = phba->vlan_id;
1523 else
dbb6b3ab 1524 *vlan_id = LPFC_FCOE_NULL_VID;
6fb120a7
JS		 1525 return 1;
1526 }
1527
1528 /*
1529 * If there are no FCF connection table entry, driver connect to all
1530 * FCFs.
1531 */
1532 if (list_empty(&phba->fcf_conn_rec_list)) {
1533 *boot_flag = 0;
1534 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1535 new_fcf_record);
0c287589
JS		 1536
1537 /*
1538 * When there are no FCF connect entries, use driver's default
1539 * addressing mode - FPMA.
1540 */
1541 if (*addr_mode & LPFC_FCF_FPMA)
1542 *addr_mode = LPFC_FCF_FPMA;
1543
4d9ab994
JS		 1544 /* If FCF record report a vlan id use that vlan id */
1545 if (fcf_vlan_id)
1546 *vlan_id = fcf_vlan_id;
1547 else
dbb6b3ab 1548 *vlan_id = LPFC_FCOE_NULL_VID;
6fb120a7
JS		 1549 return 1;
1550 }
1551
ecfd03c6
JS		 1552 list_for_each_entry(conn_entry,
1553 &phba->fcf_conn_rec_list, list) {
6fb120a7
JS		 1554 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1555 continue;
1556
1557 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1558 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
8fa38513
JS		 1559 new_fcf_record))
1560 continue;
1561 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1562 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1563 new_fcf_record))
6fb120a7 1564 continue;
6fb120a7
JS		 1565 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1566 /*
1567 * If the vlan bit map does not have the bit set for the
1568 * vlan id to be used, then it is not a match.
1569 */
1570 if (!(new_fcf_record->vlan_bitmap
1571 [conn_entry->conn_rec.vlan_tag / 8] &
1572 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1573 continue;
1574 }
1575
0c287589
JS		 1576 /*
1577 * If connection record does not support any addressing mode,
1578 * skip the FCF record.
1579 */
1580 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1581 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1582 continue;
1583
6fb120a7
JS		 1584 /*
1585 * Check if the connection record specifies a required
1586 * addressing mode.
1587 */
1588 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1589 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1590
1591 /*
1592 * If SPMA required but FCF not support this continue.
1593 */
1594 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1595 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1596 new_fcf_record) & LPFC_FCF_SPMA))
1597 continue;
1598
1599 /*
1600 * If FPMA required but FCF not support this continue.
1601 */
1602 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1603 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1604 new_fcf_record) & LPFC_FCF_FPMA))
1605 continue;
1606 }
1607
1608 /*
1609 * This fcf record matches filtering criteria.
1610 */
1611 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1612 *boot_flag = 1;
1613 else
1614 *boot_flag = 0;
1615
0c287589
JS		 1616 /*
1617 * If user did not specify any addressing mode, or if the
25985edc 1618 * preferred addressing mode specified by user is not supported
0c287589
JS		 1619 * by FCF, allow fabric to pick the addressing mode.
1620 */
6fb120a7
JS		 1621 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1622 new_fcf_record);
1623 /*
1624 * If the user specified a required address mode, assign that
1625 * address mode
1626 */
1627 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1628 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1629 *addr_mode = (conn_entry->conn_rec.flags &
1630 FCFCNCT_AM_SPMA) ?
1631 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1632 /*
25985edc 1633 * If the user specified a preferred address mode, use the
6fb120a7
JS		 1634 * addr mode only if FCF support the addr_mode.
1635 */
1636 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1637 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1638 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1639 (*addr_mode & LPFC_FCF_SPMA))
1640 *addr_mode = LPFC_FCF_SPMA;
1641 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1642 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1643 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1644 (*addr_mode & LPFC_FCF_FPMA))
1645 *addr_mode = LPFC_FCF_FPMA;
6fb120a7 1646
4d9ab994 1647 /* If matching connect list has a vlan id, use it */
6fb120a7
JS		 1648 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1649 *vlan_id = conn_entry->conn_rec.vlan_tag;
4d9ab994
JS		 1650 /*
1651 * If no vlan id is specified in connect list, use the vlan id
1652 * in the FCF record
1653 */
1654 else if (fcf_vlan_id)
1655 *vlan_id = fcf_vlan_id;
6fb120a7 1656 else
dbb6b3ab 1657 *vlan_id = LPFC_FCOE_NULL_VID;
6fb120a7
JS		 1658
1659 return 1;
1660 }
1661
1662 return 0;
1663}
1664
32b9793f
JS		 1665/**
1666 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1667 * @phba: pointer to lpfc hba data structure.
1668 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1669 *
1670 * This function check if there is any fcoe event pending while driver
1671 * scan FCF entries. If there is any pending event, it will restart the
1672 * FCF saning and return 1 else return 0.
1673 */
1674int
1675lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1676{
32b9793f
JS		 1677 /*
1678 * If the Link is up and no FCoE events while in the
1679 * FCF discovery, no need to restart FCF discovery.
1680 */
1681 if ((phba->link_state >= LPFC_LINK_UP) &&
a93ff37a 1682 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
32b9793f
JS		 1683 return 0;
1684
0c9ab6f5
JS		 1685 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1686 "2768 Pending link or FCF event during current "
1687 "handling of the previous event: link_state:x%x, "
1688 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1689 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
1690 phba->fcoe_eventtag);
1691
32b9793f
JS		 1692 spin_lock_irq(&phba->hbalock);
1693 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1694 spin_unlock_irq(&phba->hbalock);
1695
0c9ab6f5
JS		 1696 if (phba->link_state >= LPFC_LINK_UP) {
1697 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1698 "2780 Restart FCF table scan due to "
1699 "pending FCF event:evt_tag_at_scan:x%x, "
1700 "evt_tag_current:x%x\n",
1701 phba->fcoe_eventtag_at_fcf_scan,
1702 phba->fcoe_eventtag);
1703 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
1704 } else {
4d9ab994 1705 /*
a93ff37a 1706 * Do not continue FCF discovery and clear FCF_TS_INPROG
4d9ab994
JS		 1707 * flag
1708 */
dbb6b3ab
JS		 1709 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1710 "2833 Stop FCF discovery process due to link "
1711 "state change (x%x)\n", phba->link_state);
1c6f4ef5 1712 spin_lock_irq(&phba->hbalock);
a93ff37a 1713 phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
0c9ab6f5 1714 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
1c6f4ef5
JS		 1715 spin_unlock_irq(&phba->hbalock);
1716 }
32b9793f 1717
0c9ab6f5 1718 /* Unregister the currently registered FCF if required */
32b9793f
JS		 1719 if (unreg_fcf) {
1720 spin_lock_irq(&phba->hbalock);
1721 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1722 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 1723 lpfc_sli4_unregister_fcf(phba);
32b9793f 1724 }
32b9793f
JS		 1725 return 1;
1726}
1727
6fb120a7 1728/**
999d813f
JS		 1729 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1730 * @phba: pointer to lpfc hba data structure.
1731 * @fcf_cnt: number of eligible fcf record seen so far.
1732 *
1733 * This function makes an running random selection decision on FCF record to
1734 * use through a sequence of @fcf_cnt eligible FCF records with equal
1735 * probability. To perform integer manunipulation of random numbers with
1736 * size unit32_t, the lower 16 bits of the 32-bit random number returned
3b60a64f 1737 * from prandom_u32() are taken as the random random number generated.
999d813f
JS		 1738 *
1739 * Returns true when outcome is for the newly read FCF record should be
1740 * chosen; otherwise, return false when outcome is for keeping the previously
1741 * chosen FCF record.
1742 **/
1743static bool
1744lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
1745{
1746 uint32_t rand_num;
1747
1748 /* Get 16-bit uniform random number */
3b60a64f 1749 rand_num = 0xFFFF & prandom_u32();
999d813f
JS		 1750
1751 /* Decision with probability 1/fcf_cnt */
1752 if ((fcf_cnt * rand_num) < 0xFFFF)
1753 return true;
1754 else
1755 return false;
1756}
1757
1758/**
3804dc84 1759 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
6fb120a7
JS		 1760 * @phba: pointer to lpfc hba data structure.
1761 * @mboxq: pointer to mailbox object.
0c9ab6f5 1762 * @next_fcf_index: pointer to holder of next fcf index.
6fb120a7 1763 *
0c9ab6f5
JS		 1764 * This routine parses the non-embedded fcf mailbox command by performing the
1765 * necessarily error checking, non-embedded read FCF record mailbox command
1766 * SGE parsing, and endianness swapping.
1767 *
1768 * Returns the pointer to the new FCF record in the non-embedded mailbox
1769 * command DMA memory if successfully, other NULL.
6fb120a7 1770 */
0c9ab6f5
JS		 1771static struct fcf_record *
1772lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
1773 uint16_t *next_fcf_index)
6fb120a7
JS		 1774{
1775 void *virt_addr;
1776 dma_addr_t phys_addr;
6fb120a7
JS		 1777 struct lpfc_mbx_sge sge;
1778 struct lpfc_mbx_read_fcf_tbl *read_fcf;
1779 uint32_t shdr_status, shdr_add_status;
1780 union lpfc_sli4_cfg_shdr *shdr;
1781 struct fcf_record *new_fcf_record;
32b9793f 1782
6fb120a7
JS		 1783 /* Get the first SGE entry from the non-embedded DMA memory. This
1784 * routine only uses a single SGE.
1785 */
1786 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1787 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
1788 if (unlikely(!mboxq->sge_array)) {
1789 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1790 "2524 Failed to get the non-embedded SGE "
1791 "virtual address\n");
0c9ab6f5 1792 return NULL;
6fb120a7
JS		 1793 }
1794 virt_addr = mboxq->sge_array->addr[0];
1795
1796 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
2562669c
JS		 1797 lpfc_sli_pcimem_bcopy(shdr, shdr,
1798 sizeof(union lpfc_sli4_cfg_shdr));
6fb120a7 1799 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
0c9ab6f5 1800 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6fb120a7 1801 if (shdr_status || shdr_add_status) {
0c9ab6f5
JS		 1802 if (shdr_status == STATUS_FCF_TABLE_EMPTY)
1803 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
def9c7a9
JS		 1804 "2726 READ_FCF_RECORD Indicates empty "
1805 "FCF table.\n");
0c9ab6f5
JS		 1806 else
1807 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
def9c7a9 1808 "2521 READ_FCF_RECORD mailbox failed "
0c9ab6f5
JS		 1809 "with status x%x add_status x%x, "
1810 "mbx\n", shdr_status, shdr_add_status);
1811 return NULL;
6fb120a7 1812 }
0c9ab6f5
JS		 1813
1814 /* Interpreting the returned information of the FCF record */
6fb120a7
JS		 1815 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1816 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1817 sizeof(struct lpfc_mbx_read_fcf_tbl));
0c9ab6f5 1818 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
6fb120a7
JS		 1819 new_fcf_record = (struct fcf_record *)(virt_addr +
1820 sizeof(struct lpfc_mbx_read_fcf_tbl));
1821 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
cb5172ea
JS		 1822 offsetof(struct fcf_record, vlan_bitmap));
1823 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
1824 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
6fb120a7 1825
0c9ab6f5
JS		 1826 return new_fcf_record;
1827}
1828
1829/**
1830 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1831 * @phba: pointer to lpfc hba data structure.
1832 * @fcf_record: pointer to the fcf record.
1833 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1834 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1835 *
1836 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1837 * enabled.
1838 **/
1839static void
1840lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
1841 struct fcf_record *fcf_record,
1842 uint16_t vlan_id,
1843 uint16_t next_fcf_index)
1844{
1845 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1846 "2764 READ_FCF_RECORD:\n"
1847 "\tFCF_Index : x%x\n"
1848 "\tFCF_Avail : x%x\n"
1849 "\tFCF_Valid : x%x\n"
26979ced 1850 "\tFCF_SOL : x%x\n"
0c9ab6f5
JS		 1851 "\tFIP_Priority : x%x\n"
1852 "\tMAC_Provider : x%x\n"
1853 "\tLowest VLANID : x%x\n"
1854 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1855 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1856 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1857 "\tNext_FCF_Index: x%x\n",
1858 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
1859 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
1860 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
26979ced 1861 bf_get(lpfc_fcf_record_fcf_sol, fcf_record),
0c9ab6f5
JS		 1862 fcf_record->fip_priority,
1863 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
1864 vlan_id,
1865 bf_get(lpfc_fcf_record_mac_0, fcf_record),
1866 bf_get(lpfc_fcf_record_mac_1, fcf_record),
1867 bf_get(lpfc_fcf_record_mac_2, fcf_record),
1868 bf_get(lpfc_fcf_record_mac_3, fcf_record),
1869 bf_get(lpfc_fcf_record_mac_4, fcf_record),
1870 bf_get(lpfc_fcf_record_mac_5, fcf_record),
1871 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
1872 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
1873 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
1874 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
1875 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
1876 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
1877 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
1878 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
1879 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
1880 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
1881 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
1882 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
1883 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
1884 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
1885 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
1886 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
1887 next_fcf_index);
1888}
1889
dbb6b3ab
JS		 1890/**
1891 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1892 * @phba: pointer to lpfc hba data structure.
1893 * @fcf_rec: pointer to an existing FCF record.
1894 * @new_fcf_record: pointer to a new FCF record.
1895 * @new_vlan_id: vlan id from the new FCF record.
1896 *
1897 * This function performs matching test of a new FCF record against an existing
1898 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1899 * will not be used as part of the FCF record matching criteria.
1900 *
1901 * Returns true if all the fields matching, otherwise returns false.
1902 */
1903static bool
1904lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
1905 struct lpfc_fcf_rec *fcf_rec,
1906 struct fcf_record *new_fcf_record,
1907 uint16_t new_vlan_id)
1908{
1909 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
1910 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
1911 return false;
1912 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
1913 return false;
1914 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
1915 return false;
1916 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
1917 return false;
7d791df7
JS		 1918 if (fcf_rec->priority != new_fcf_record->fip_priority)
1919 return false;
dbb6b3ab
JS		 1920 return true;
1921}
1922
a93ff37a
JS		 1923/**
1924 * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
1925 * @vport: Pointer to vport object.
1926 * @fcf_index: index to next fcf.
1927 *
1928 * This function processing the roundrobin fcf failover to next fcf index.
1929 * When this function is invoked, there will be a current fcf registered
1930 * for flogi.
1931 * Return: 0 for continue retrying flogi on currently registered fcf;
1932 * 1 for stop flogi on currently registered fcf;
1933 */
1934int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
1935{
1936 struct lpfc_hba *phba = vport->phba;
1937 int rc;
1938
1939 if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
1940 spin_lock_irq(&phba->hbalock);
1941 if (phba->hba_flag & HBA_DEVLOSS_TMO) {
1942 spin_unlock_irq(&phba->hbalock);
1943 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1944 "2872 Devloss tmo with no eligible "
1945 "FCF, unregister in-use FCF (x%x) "
1946 "and rescan FCF table\n",
1947 phba->fcf.current_rec.fcf_indx);
1948 lpfc_unregister_fcf_rescan(phba);
1949 goto stop_flogi_current_fcf;
1950 }
1951 /* Mark the end to FLOGI roundrobin failover */
1952 phba->hba_flag &= ~FCF_RR_INPROG;
1953 /* Allow action to new fcf asynchronous event */
1954 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
1955 spin_unlock_irq(&phba->hbalock);
1956 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1957 "2865 No FCF available, stop roundrobin FCF "
1958 "failover and change port state:x%x/x%x\n",
1959 phba->pport->port_state, LPFC_VPORT_UNKNOWN);
1960 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
1961 goto stop_flogi_current_fcf;
1962 } else {
1963 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
1964 "2794 Try FLOGI roundrobin FCF failover to "
1965 "(x%x)\n", fcf_index);
1966 rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
1967 if (rc)
1968 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
1969 "2761 FLOGI roundrobin FCF failover "
1970 "failed (rc:x%x) to read FCF (x%x)\n",
1971 rc, phba->fcf.current_rec.fcf_indx);
1972 else
1973 goto stop_flogi_current_fcf;
1974 }
1975 return 0;
1976
1977stop_flogi_current_fcf:
1978 lpfc_can_disctmo(vport);
1979 return 1;
1980}
1981
7d791df7
JS		 1982/**
1983 * lpfc_sli4_fcf_pri_list_del
1984 * @phba: pointer to lpfc hba data structure.
1985 * @fcf_index the index of the fcf record to delete
1986 * This routine checks the on list flag of the fcf_index to be deleted.
1987 * If it is one the list then it is removed from the list, and the flag
1988 * is cleared. This routine grab the hbalock before removing the fcf
1989 * record from the list.
1990 **/
1991static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
1992 uint16_t fcf_index)
1993{
1994 struct lpfc_fcf_pri *new_fcf_pri;
1995
1996 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
1997 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1998 "3058 deleting idx x%x pri x%x flg x%x\n",
1999 fcf_index, new_fcf_pri->fcf_rec.priority,
2000 new_fcf_pri->fcf_rec.flag);
2001 spin_lock_irq(&phba->hbalock);
2002 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
2003 if (phba->fcf.current_rec.priority ==
2004 new_fcf_pri->fcf_rec.priority)
2005 phba->fcf.eligible_fcf_cnt--;
2006 list_del_init(&new_fcf_pri->list);
2007 new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
2008 }
2009 spin_unlock_irq(&phba->hbalock);
2010}
2011
2012/**
2013 * lpfc_sli4_set_fcf_flogi_fail
2014 * @phba: pointer to lpfc hba data structure.
2015 * @fcf_index the index of the fcf record to update
2016 * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
2017 * flag so the the round robin slection for the particular priority level
2018 * will try a different fcf record that does not have this bit set.
2019 * If the fcf record is re-read for any reason this flag is cleared brfore
2020 * adding it to the priority list.
2021 **/
2022void
2023lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
2024{
2025 struct lpfc_fcf_pri *new_fcf_pri;
2026 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2027 spin_lock_irq(&phba->hbalock);
2028 new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
2029 spin_unlock_irq(&phba->hbalock);
2030}
2031
2032/**
2033 * lpfc_sli4_fcf_pri_list_add
2034 * @phba: pointer to lpfc hba data structure.
2035 * @fcf_index the index of the fcf record to add
2036 * This routine checks the priority of the fcf_index to be added.
2037 * If it is a lower priority than the current head of the fcf_pri list
2038 * then it is added to the list in the right order.
2039 * If it is the same priority as the current head of the list then it
2040 * is added to the head of the list and its bit in the rr_bmask is set.
2041 * If the fcf_index to be added is of a higher priority than the current
2042 * head of the list then the rr_bmask is cleared, its bit is set in the
2043 * rr_bmask and it is added to the head of the list.
2044 * returns:
2045 * 0=success 1=failure
2046 **/
2047int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, uint16_t fcf_index,
2048 struct fcf_record *new_fcf_record)
2049{
2050 uint16_t current_fcf_pri;
2051 uint16_t last_index;
2052 struct lpfc_fcf_pri *fcf_pri;
2053 struct lpfc_fcf_pri *next_fcf_pri;
2054 struct lpfc_fcf_pri *new_fcf_pri;
2055 int ret;
2056
2057 new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
2058 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2059 "3059 adding idx x%x pri x%x flg x%x\n",
2060 fcf_index, new_fcf_record->fip_priority,
2061 new_fcf_pri->fcf_rec.flag);
2062 spin_lock_irq(&phba->hbalock);
2063 if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
2064 list_del_init(&new_fcf_pri->list);
2065 new_fcf_pri->fcf_rec.fcf_index = fcf_index;
2066 new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
2067 if (list_empty(&phba->fcf.fcf_pri_list)) {
2068 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2069 ret = lpfc_sli4_fcf_rr_index_set(phba,
2070 new_fcf_pri->fcf_rec.fcf_index);
2071 goto out;
2072 }
2073
2074 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
2075 LPFC_SLI4_FCF_TBL_INDX_MAX);
2076 if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
2077 ret = 0; /* Empty rr list */
2078 goto out;
2079 }
2080 current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
2081 if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
2082 list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
2083 if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
2084 memset(phba->fcf.fcf_rr_bmask, 0,
2085 sizeof(*phba->fcf.fcf_rr_bmask));
2086 /* fcfs_at_this_priority_level = 1; */
2087 phba->fcf.eligible_fcf_cnt = 1;
2088 } else
2089 /* fcfs_at_this_priority_level++; */
2090 phba->fcf.eligible_fcf_cnt++;
2091 ret = lpfc_sli4_fcf_rr_index_set(phba,
2092 new_fcf_pri->fcf_rec.fcf_index);
2093 goto out;
2094 }
2095
2096 list_for_each_entry_safe(fcf_pri, next_fcf_pri,
2097 &phba->fcf.fcf_pri_list, list) {
2098 if (new_fcf_pri->fcf_rec.priority <=
2099 fcf_pri->fcf_rec.priority) {
2100 if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
2101 list_add(&new_fcf_pri->list,
2102 &phba->fcf.fcf_pri_list);
2103 else
2104 list_add(&new_fcf_pri->list,
2105 &((struct lpfc_fcf_pri *)
2106 fcf_pri->list.prev)->list);
2107 ret = 0;
2108 goto out;
2109 } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
2110 || new_fcf_pri->fcf_rec.priority <
2111 next_fcf_pri->fcf_rec.priority) {
2112 list_add(&new_fcf_pri->list, &fcf_pri->list);
2113 ret = 0;
2114 goto out;
2115 }
2116 if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
2117 continue;
2118
2119 }
2120 ret = 1;
2121out:
2122 /* we use = instead of |= to clear the FLOGI_FAILED flag. */
2123 new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
2124 spin_unlock_irq(&phba->hbalock);
2125 return ret;
2126}
2127
0c9ab6f5
JS		 2128/**
2129 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
2130 * @phba: pointer to lpfc hba data structure.
2131 * @mboxq: pointer to mailbox object.
2132 *
2133 * This function iterates through all the fcf records available in
2134 * HBA and chooses the optimal FCF record for discovery. After finding
2135 * the FCF for discovery it registers the FCF record and kicks start
2136 * discovery.
2137 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
2138 * use an FCF record which matches fabric name and mac address of the
2139 * currently used FCF record.
2140 * If the driver supports only one FCF, it will try to use the FCF record
2141 * used by BOOT_BIOS.
2142 */
2143void
2144lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2145{
2146 struct fcf_record *new_fcf_record;
2147 uint32_t boot_flag, addr_mode;
2148 uint16_t fcf_index, next_fcf_index;
2149 struct lpfc_fcf_rec *fcf_rec = NULL;
2150 uint16_t vlan_id;
999d813f
JS		 2151 uint32_t seed;
2152 bool select_new_fcf;
0c9ab6f5
JS		 2153 int rc;
2154
2155 /* If there is pending FCoE event restart FCF table scan */
a93ff37a 2156 if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
0c9ab6f5
JS		 2157 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2158 return;
2159 }
2160
2161 /* Parse the FCF record from the non-embedded mailbox command */
2162 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2163 &next_fcf_index);
2164 if (!new_fcf_record) {
a93ff37a 2165 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
0c9ab6f5
JS		 2166 "2765 Mailbox command READ_FCF_RECORD "
2167 "failed to retrieve a FCF record.\n");
2168 /* Let next new FCF event trigger fast failover */
2169 spin_lock_irq(&phba->hbalock);
a93ff37a 2170 phba->hba_flag &= ~FCF_TS_INPROG;
0c9ab6f5
JS		 2171 spin_unlock_irq(&phba->hbalock);
2172 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2173 return;
2174 }
2175
2176 /* Check the FCF record against the connection list */
ecfd03c6
JS		 2177 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2178 &addr_mode, &vlan_id);
0c9ab6f5
JS		 2179
2180 /* Log the FCF record information if turned on */
2181 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2182 next_fcf_index);
2183
6fb120a7
JS		 2184 /*
2185 * If the fcf record does not match with connect list entries
0c9ab6f5 2186 * read the next entry; otherwise, this is an eligible FCF
a93ff37a 2187 * record for roundrobin FCF failover.
6fb120a7 2188 */
0c9ab6f5 2189 if (!rc) {
7d791df7
JS		 2190 lpfc_sli4_fcf_pri_list_del(phba,
2191 bf_get(lpfc_fcf_record_fcf_index,
2192 new_fcf_record));
0c9ab6f5 2193 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
a93ff37a 2194 "2781 FCF (x%x) failed connection "
26979ced 2195 "list check: (x%x/x%x/%x)\n",
0c9ab6f5
JS		 2196 bf_get(lpfc_fcf_record_fcf_index,
2197 new_fcf_record),
2198 bf_get(lpfc_fcf_record_fcf_avail,
2199 new_fcf_record),
2200 bf_get(lpfc_fcf_record_fcf_valid,
26979ced
JS		 2201 new_fcf_record),
2202 bf_get(lpfc_fcf_record_fcf_sol,
0c9ab6f5 2203 new_fcf_record));
dbb6b3ab
JS		 2204 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
2205 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
2206 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
5ac6b303
JS		 2207 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
2208 phba->fcf.current_rec.fcf_indx) {
2209 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2210 "2862 FCF (x%x) matches property "
2211 "of in-use FCF (x%x)\n",
2212 bf_get(lpfc_fcf_record_fcf_index,
2213 new_fcf_record),
2214 phba->fcf.current_rec.fcf_indx);
2215 goto read_next_fcf;
2216 }
dbb6b3ab
JS		 2217 /*
2218 * In case the current in-use FCF record becomes
2219 * invalid/unavailable during FCF discovery that
2220 * was not triggered by fast FCF failover process,
2221 * treat it as fast FCF failover.
2222 */
2223 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
2224 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
2225 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2226 "2835 Invalid in-use FCF "
a93ff37a
JS		 2227 "(x%x), enter FCF failover "
2228 "table scan.\n",
dbb6b3ab
JS		 2229 phba->fcf.current_rec.fcf_indx);
2230 spin_lock_irq(&phba->hbalock);
2231 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2232 spin_unlock_irq(&phba->hbalock);
2233 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2234 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2235 LPFC_FCOE_FCF_GET_FIRST);
2236 return;
2237 }
2238 }
6fb120a7 2239 goto read_next_fcf;
0c9ab6f5
JS		 2240 } else {
2241 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
7d791df7
JS		 2242 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
2243 new_fcf_record);
0c9ab6f5
JS		 2244 if (rc)
2245 goto read_next_fcf;
2246 }
2247
6fb120a7
JS		 2248 /*
2249 * If this is not the first FCF discovery of the HBA, use last
ecfd03c6
JS		 2250 * FCF record for the discovery. The condition that a rescan
2251 * matches the in-use FCF record: fabric name, switch name, mac
2252 * address, and vlan_id.
6fb120a7 2253 */
0c9ab6f5 2254 spin_lock_irq(&phba->hbalock);
6fb120a7 2255 if (phba->fcf.fcf_flag & FCF_IN_USE) {
7d791df7
JS		 2256 if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
2257 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
dbb6b3ab 2258 new_fcf_record, vlan_id)) {
5ac6b303
JS		 2259 if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
2260 phba->fcf.current_rec.fcf_indx) {
2261 phba->fcf.fcf_flag |= FCF_AVAILABLE;
2262 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
2263 /* Stop FCF redisc wait timer */
2264 __lpfc_sli4_stop_fcf_redisc_wait_timer(
2265 phba);
2266 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2267 /* Fast failover, mark completed */
2268 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
2269 spin_unlock_irq(&phba->hbalock);
2270 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2271 "2836 New FCF matches in-use "
88f43a08
JS		 2272 "FCF (x%x), port_state:x%x, "
2273 "fc_flag:x%x\n",
2274 phba->fcf.current_rec.fcf_indx,
2275 phba->pport->port_state,
2276 phba->pport->fc_flag);
5ac6b303
JS		 2277 goto out;
2278 } else
2279 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
2280 "2863 New FCF (x%x) matches "
2281 "property of in-use FCF (x%x)\n",
dbb6b3ab 2282 bf_get(lpfc_fcf_record_fcf_index,
5ac6b303
JS		 2283 new_fcf_record),
2284 phba->fcf.current_rec.fcf_indx);
6fb120a7 2285 }
ecfd03c6
JS		 2286 /*
2287 * Read next FCF record from HBA searching for the matching
2288 * with in-use record only if not during the fast failover
2289 * period. In case of fast failover period, it shall try to
2290 * determine whether the FCF record just read should be the
2291 * next candidate.
2292 */
2293 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
0c9ab6f5 2294 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 2295 goto read_next_fcf;
2296 }
6fb120a7 2297 }
ecfd03c6
JS		 2298 /*
2299 * Update on failover FCF record only if it's in FCF fast-failover
2300 * period; otherwise, update on current FCF record.
2301 */
fc2b989b
JS		 2302 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
2303 fcf_rec = &phba->fcf.failover_rec;
2304 else
ecfd03c6
JS		 2305 fcf_rec = &phba->fcf.current_rec;
2306
6fb120a7
JS		 2307 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
2308 /*
ecfd03c6
JS		 2309 * If the driver FCF record does not have boot flag
2310 * set and new hba fcf record has boot flag set, use
2311 * the new hba fcf record.
6fb120a7 2312 */
ecfd03c6
JS		 2313 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
2314 /* Choose this FCF record */
dbb6b3ab
JS		 2315 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2316 "2837 Update current FCF record "
2317 "(x%x) with new FCF record (x%x)\n",
2318 fcf_rec->fcf_indx,
2319 bf_get(lpfc_fcf_record_fcf_index,
2320 new_fcf_record));
ecfd03c6
JS		 2321 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2322 addr_mode, vlan_id, BOOT_ENABLE);
0c9ab6f5 2323 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 2324 goto read_next_fcf;
2325 }
2326 /*
ecfd03c6
JS		 2327 * If the driver FCF record has boot flag set and the
2328 * new hba FCF record does not have boot flag, read
2329 * the next FCF record.
6fb120a7 2330 */
ecfd03c6 2331 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
0c9ab6f5 2332 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 2333 goto read_next_fcf;
2334 }
2335 /*
ecfd03c6
JS		 2336 * If the new hba FCF record has lower priority value
2337 * than the driver FCF record, use the new record.
6fb120a7 2338 */
fc2b989b 2339 if (new_fcf_record->fip_priority < fcf_rec->priority) {
999d813f 2340 /* Choose the new FCF record with lower priority */
dbb6b3ab
JS		 2341 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2342 "2838 Update current FCF record "
2343 "(x%x) with new FCF record (x%x)\n",
2344 fcf_rec->fcf_indx,
2345 bf_get(lpfc_fcf_record_fcf_index,
2346 new_fcf_record));
ecfd03c6
JS		 2347 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2348 addr_mode, vlan_id, 0);
999d813f
JS		 2349 /* Reset running random FCF selection count */
2350 phba->fcf.eligible_fcf_cnt = 1;
2351 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
2352 /* Update running random FCF selection count */
2353 phba->fcf.eligible_fcf_cnt++;
2354 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
2355 phba->fcf.eligible_fcf_cnt);
dbb6b3ab
JS		 2356 if (select_new_fcf) {
2357 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2358 "2839 Update current FCF record "
2359 "(x%x) with new FCF record (x%x)\n",
2360 fcf_rec->fcf_indx,
2361 bf_get(lpfc_fcf_record_fcf_index,
2362 new_fcf_record));
999d813f
JS		 2363 /* Choose the new FCF by random selection */
2364 __lpfc_update_fcf_record(phba, fcf_rec,
2365 new_fcf_record,
2366 addr_mode, vlan_id, 0);
dbb6b3ab 2367 }
6fb120a7 2368 }
0c9ab6f5 2369 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 2370 goto read_next_fcf;
2371 }
2372 /*
ecfd03c6
JS		 2373 * This is the first suitable FCF record, choose this record for
2374 * initial best-fit FCF.
6fb120a7 2375 */
ecfd03c6 2376 if (fcf_rec) {
dbb6b3ab 2377 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a
JS		 2378 "2840 Update initial FCF candidate "
2379 "with FCF (x%x)\n",
dbb6b3ab
JS		 2380 bf_get(lpfc_fcf_record_fcf_index,
2381 new_fcf_record));
ecfd03c6
JS		 2382 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
2383 addr_mode, vlan_id, (boot_flag ?
2384 BOOT_ENABLE : 0));
2385 phba->fcf.fcf_flag |= FCF_AVAILABLE;
999d813f
JS		 2386 /* Setup initial running random FCF selection count */
2387 phba->fcf.eligible_fcf_cnt = 1;
2388 /* Seeding the random number generator for random selection */
2389 seed = (uint32_t)(0xFFFFFFFF & jiffies);
3b60a64f 2390 prandom_seed(seed);
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 "
2548 "failed to retrieve a FCF record.\n");
a93ff37a 2549 goto error_out;
0c9ab6f5
JS		 2550 }
2551
2552 /* Get the needed parameters from FCF record */
a93ff37a
JS		 2553 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2554 &addr_mode, &vlan_id);
0c9ab6f5
JS		 2555
2556 /* Log the FCF record information if turned on */
2557 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2558 next_fcf_index);
2559
a93ff37a
JS		 2560 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2561 if (!rc) {
2562 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2563 "2848 Remove ineligible FCF (x%x) from "
2564 "from roundrobin bmask\n", fcf_index);
2565 /* Clear roundrobin bmask bit for ineligible FCF */
2566 lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
2567 /* Perform next round of roundrobin FCF failover */
2568 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
2569 rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
2570 if (rc)
2571 goto out;
2572 goto error_out;
2573 }
2574
2575 if (fcf_index == phba->fcf.current_rec.fcf_indx) {
2576 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2577 "2760 Perform FLOGI roundrobin FCF failover: "
2578 "FCF (x%x) back to FCF (x%x)\n",
2579 phba->fcf.current_rec.fcf_indx, fcf_index);
2580 /* Wait 500 ms before retrying FLOGI to current FCF */
2581 msleep(500);
76a95d75 2582 lpfc_issue_init_vfi(phba->pport);
a93ff37a
JS		 2583 goto out;
2584 }
2585
0c9ab6f5 2586 /* Upload new FCF record to the failover FCF record */
dbb6b3ab 2587 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a
JS		 2588 "2834 Update current FCF (x%x) with new FCF (x%x)\n",
2589 phba->fcf.failover_rec.fcf_indx, fcf_index);
0c9ab6f5
JS		 2590 spin_lock_irq(&phba->hbalock);
2591 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2592 new_fcf_record, addr_mode, vlan_id,
2593 (boot_flag ? BOOT_ENABLE : 0));
2594 spin_unlock_irq(&phba->hbalock);
2595
2596 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2597
2598 /* Unregister the current in-use FCF record */
2599 lpfc_unregister_fcf(phba);
2600
2601 /* Replace in-use record with the new record */
2602 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2603 sizeof(struct lpfc_fcf_rec));
2604
2605 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a
JS		 2606 "2783 Perform FLOGI roundrobin FCF failover: FCF "
2607 "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
0c9ab6f5 2608
a93ff37a
JS		 2609error_out:
2610 lpfc_register_fcf(phba);
0c9ab6f5
JS		 2611out:
2612 lpfc_sli4_mbox_cmd_free(phba, mboxq);
0c9ab6f5
JS		 2613}
2614
2615/**
2616 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2617 * @phba: pointer to lpfc hba data structure.
2618 * @mboxq: pointer to mailbox object.
2619 *
2620 * This is the callback function of read FCF record mailbox command for
a93ff37a 2621 * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
0c9ab6f5
JS		 2622 * failover when a new FCF event happened. If the FCF read back is
2623 * valid/available and it passes the connection list check, it updates
a93ff37a 2624 * the bmask for the eligible FCF record for roundrobin failover.
0c9ab6f5
JS		 2625 */
2626void
2627lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2628{
2629 struct fcf_record *new_fcf_record;
2630 uint32_t boot_flag, addr_mode;
2631 uint16_t fcf_index, next_fcf_index;
2632 uint16_t vlan_id;
2633 int rc;
2634
2635 /* If link state is not up, no need to proceed */
2636 if (phba->link_state < LPFC_LINK_UP)
2637 goto out;
2638
2639 /* If FCF discovery period is over, no need to proceed */
3804dc84 2640 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
0c9ab6f5
JS		 2641 goto out;
2642
2643 /* Parse the FCF record from the non-embedded mailbox command */
2644 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2645 &next_fcf_index);
2646 if (!new_fcf_record) {
2647 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2648 "2767 Mailbox command READ_FCF_RECORD "
2649 "failed to retrieve a FCF record.\n");
2650 goto out;
2651 }
2652
2653 /* Check the connection list for eligibility */
2654 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2655 &addr_mode, &vlan_id);
2656
2657 /* Log the FCF record information if turned on */
2658 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2659 next_fcf_index);
2660
2661 if (!rc)
2662 goto out;
2663
2664 /* Update the eligible FCF record index bmask */
2665 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
7d791df7
JS		 2666
2667 rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
0c9ab6f5
JS		 2668
2669out:
2670 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2671}
2672
76a95d75
JS		 2673/**
2674 * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
2675 * @phba: pointer to lpfc hba data structure.
2676 * @mboxq: pointer to mailbox data structure.
2677 *
2678 * This function handles completion of init vfi mailbox command.
2679 */
2680void
2681lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2682{
2683 struct lpfc_vport *vport = mboxq->vport;
2684
df9e1b59
JS		 2685 /*
2686 * VFI not supported on interface type 0, just do the flogi
2687 * Also continue if the VFI is in use - just use the same one.
2688 */
2689 if (mboxq->u.mb.mbxStatus &&
2690 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2691 LPFC_SLI_INTF_IF_TYPE_0) &&
2692 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
76a95d75
JS		 2693 lpfc_printf_vlog(vport, KERN_ERR,
2694 LOG_MBOX,
2695 "2891 Init VFI mailbox failed 0x%x\n",
2696 mboxq->u.mb.mbxStatus);
2697 mempool_free(mboxq, phba->mbox_mem_pool);
2698 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2699 return;
2700 }
73d91e50 2701
76a95d75
JS		 2702 lpfc_initial_flogi(vport);
2703 mempool_free(mboxq, phba->mbox_mem_pool);
2704 return;
2705}
2706
2707/**
2708 * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
2709 * @vport: pointer to lpfc_vport data structure.
2710 *
2711 * This function issue a init_vfi mailbox command to initialize the VFI and
2712 * VPI for the physical port.
2713 */
2714void
2715lpfc_issue_init_vfi(struct lpfc_vport *vport)
2716{
2717 LPFC_MBOXQ_t *mboxq;
2718 int rc;
2719 struct lpfc_hba *phba = vport->phba;
2720
2721 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2722 if (!mboxq) {
2723 lpfc_printf_vlog(vport, KERN_ERR,
2724 LOG_MBOX, "2892 Failed to allocate "
2725 "init_vfi mailbox\n");
2726 return;
2727 }
2728 lpfc_init_vfi(mboxq, vport);
2729 mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
2730 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
2731 if (rc == MBX_NOT_FINISHED) {
2732 lpfc_printf_vlog(vport, KERN_ERR,
2733 LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n");
2734 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2735 }
2736}
2737
1c6834a7
JS		 2738/**
2739 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2740 * @phba: pointer to lpfc hba data structure.
2741 * @mboxq: pointer to mailbox data structure.
2742 *
2743 * This function handles completion of init vpi mailbox command.
2744 */
695a814e 2745void
1c6834a7
JS		 2746lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2747{
2748 struct lpfc_vport *vport = mboxq->vport;
695a814e 2749 struct lpfc_nodelist *ndlp;
72100cc4
JS		 2750 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2751
1c6834a7
JS		 2752 if (mboxq->u.mb.mbxStatus) {
2753 lpfc_printf_vlog(vport, KERN_ERR,
2754 LOG_MBOX,
2755 "2609 Init VPI mailbox failed 0x%x\n",
2756 mboxq->u.mb.mbxStatus);
2757 mempool_free(mboxq, phba->mbox_mem_pool);
2758 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2759 return;
2760 }
72100cc4 2761 spin_lock_irq(shost->host_lock);
1c6834a7 2762 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
72100cc4 2763 spin_unlock_irq(shost->host_lock);
1c6834a7 2764
695a814e
JS		 2765 /* If this port is physical port or FDISC is done, do reg_vpi */
2766 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
2767 ndlp = lpfc_findnode_did(vport, Fabric_DID);
2768 if (!ndlp)
2769 lpfc_printf_vlog(vport, KERN_ERR,
2770 LOG_DISCOVERY,
2771 "2731 Cannot find fabric "
2772 "controller node\n");
2773 else
2774 lpfc_register_new_vport(phba, vport, ndlp);
2775 mempool_free(mboxq, phba->mbox_mem_pool);
2776 return;
2777 }
2778
1c6834a7
JS		 2779 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2780 lpfc_initial_fdisc(vport);
2781 else {
2782 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
6a9c52cf
JS		 2783 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2784 "2606 No NPIV Fabric support\n");
1c6834a7 2785 }
695a814e 2786 mempool_free(mboxq, phba->mbox_mem_pool);
1c6834a7
JS		 2787 return;
2788}
2789
ecfd03c6
JS		 2790/**
2791 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2792 * @vport: pointer to lpfc_vport data structure.
2793 *
2794 * This function issue a init_vpi mailbox command to initialize
2795 * VPI for the vport.
2796 */
2797void
2798lpfc_issue_init_vpi(struct lpfc_vport *vport)
2799{
2800 LPFC_MBOXQ_t *mboxq;
16a3a208
JS		 2801 int rc, vpi;
2802
2803 if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {
2804 vpi = lpfc_alloc_vpi(vport->phba);
2805 if (!vpi) {
2806 lpfc_printf_vlog(vport, KERN_ERR,
2807 LOG_MBOX,
2808 "3303 Failed to obtain vport vpi\n");
2809 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2810 return;
2811 }
2812 vport->vpi = vpi;
2813 }
ecfd03c6
JS		 2814
2815 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
2816 if (!mboxq) {
2817 lpfc_printf_vlog(vport, KERN_ERR,
2818 LOG_MBOX, "2607 Failed to allocate "
2819 "init_vpi mailbox\n");
2820 return;
2821 }
2822 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
2823 mboxq->vport = vport;
2824 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
2825 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
2826 if (rc == MBX_NOT_FINISHED) {
2827 lpfc_printf_vlog(vport, KERN_ERR,
2828 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
2829 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2830 }
2831}
2832
6fb120a7
JS		 2833/**
2834 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2835 * @phba: pointer to lpfc hba data structure.
2836 *
2837 * This function loops through the list of vports on the @phba and issues an
2838 * FDISC if possible.
2839 */
2840void
2841lpfc_start_fdiscs(struct lpfc_hba *phba)
2842{
2843 struct lpfc_vport **vports;
2844 int i;
2845
2846 vports = lpfc_create_vport_work_array(phba);
2847 if (vports != NULL) {
2848 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2849 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
2850 continue;
2851 /* There are no vpi for this vport */
2852 if (vports[i]->vpi > phba->max_vpi) {
2853 lpfc_vport_set_state(vports[i],
2854 FC_VPORT_FAILED);
2855 continue;
2856 }
76a95d75 2857 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6fb120a7
JS		 2858 lpfc_vport_set_state(vports[i],
2859 FC_VPORT_LINKDOWN);
2860 continue;
2861 }
1c6834a7 2862 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
ecfd03c6 2863 lpfc_issue_init_vpi(vports[i]);
1c6834a7
JS		 2864 continue;
2865 }
6fb120a7
JS		 2866 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2867 lpfc_initial_fdisc(vports[i]);
2868 else {
2869 lpfc_vport_set_state(vports[i],
2870 FC_VPORT_NO_FABRIC_SUPP);
2871 lpfc_printf_vlog(vports[i], KERN_ERR,
2872 LOG_ELS,
2873 "0259 No NPIV "
2874 "Fabric support\n");
2875 }
2876 }
2877 }
2878 lpfc_destroy_vport_work_array(phba, vports);
2879}
2880
2881void
2882lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2883{
2884 struct lpfc_dmabuf *dmabuf = mboxq->context1;
2885 struct lpfc_vport *vport = mboxq->vport;
72100cc4 2886 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6fb120a7 2887
f5eca9be
JS		 2888 /*
2889 * VFI not supported for interface type 0, so ignore any mailbox
2890 * error (except VFI in use) and continue with the discovery.
2891 */
2892 if (mboxq->u.mb.mbxStatus &&
2893 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
2894 LPFC_SLI_INTF_IF_TYPE_0) &&
2895 mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
6fb120a7
JS		 2896 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2897 "2018 REG_VFI mbxStatus error x%x "
2898 "HBA state x%x\n",
2899 mboxq->u.mb.mbxStatus, vport->port_state);
76a95d75 2900 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6fb120a7
JS		 2901 /* FLOGI failed, use loop map to make discovery list */
2902 lpfc_disc_list_loopmap(vport);
2903 /* Start discovery */
2904 lpfc_disc_start(vport);
1b51197d 2905 goto out_free_mem;
6fb120a7
JS		 2906 }
2907 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1b51197d 2908 goto out_free_mem;
6fb120a7 2909 }
ae05ebe3 2910
e74c03c8
JS		 2911 /* If the VFI is already registered, there is nothing else to do
2912 * Unless this was a VFI update and we are in PT2PT mode, then
2913 * we should drop through to set the port state to ready.
2914 */
ae05ebe3 2915 if (vport->fc_flag & FC_VFI_REGISTERED)
e74c03c8
JS		 2916 if (!(phba->sli_rev == LPFC_SLI_REV4 &&
2917 vport->fc_flag & FC_PT2PT))
2918 goto out_free_mem;
ae05ebe3 2919
c868595d 2920 /* The VPI is implicitly registered when the VFI is registered */
72100cc4 2921 spin_lock_irq(shost->host_lock);
c868595d 2922 vport->vpi_state |= LPFC_VPI_REGISTERED;
695a814e 2923 vport->fc_flag |= FC_VFI_REGISTERED;
695a814e 2924 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
5248a749 2925 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
72100cc4 2926 spin_unlock_irq(shost->host_lock);
6fb120a7 2927
1b51197d
JS		 2928 /* In case SLI4 FC loopback test, we are ready */
2929 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2930 (phba->link_flag & LS_LOOPBACK_MODE)) {
2931 phba->link_state = LPFC_HBA_READY;
2932 goto out_free_mem;
2933 }
2934
e74c03c8
JS		 2935 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2936 "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
2937 "alpacnt:%d LinkState:%x topology:%x\n",
2938 vport->port_state, vport->fc_flag, vport->fc_myDID,
2939 vport->phba->alpa_map[0],
2940 phba->link_state, phba->fc_topology);
2941
6fb120a7 2942 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
939723a4
JS		 2943 /*
2944 * For private loop or for NPort pt2pt,
2945 * just start discovery and we are done.
2946 */
2947 if ((vport->fc_flag & FC_PT2PT) ||
2948 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
2949 !(vport->fc_flag & FC_PUBLIC_LOOP))) {
2950
76a95d75
JS		 2951 /* Use loop map to make discovery list */
2952 lpfc_disc_list_loopmap(vport);
2953 /* Start discovery */
e74c03c8
JS		 2954 if (vport->fc_flag & FC_PT2PT)
2955 vport->port_state = LPFC_VPORT_READY;
2956 else
2957 lpfc_disc_start(vport);
76a95d75
JS		 2958 } else {
2959 lpfc_start_fdiscs(phba);
2960 lpfc_do_scr_ns_plogi(phba, vport);
2961 }
6fb120a7
JS		 2962 }
2963
1b51197d 2964out_free_mem:
6fb120a7
JS		 2965 mempool_free(mboxq, phba->mbox_mem_pool);
2966 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
2967 kfree(dmabuf);
2968 return;
2969}
2970
dea3101e 2971static void
2e0fef85 2972lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 2973{
6fb120a7 2974 MAILBOX_t *mb = &pmb->u.mb;
dea3101e 2975 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
2e0fef85 2976 struct lpfc_vport *vport = pmb->vport;
dea3101e
JB		 2977
2978
2979 /* Check for error */
2980 if (mb->mbxStatus) {
2981 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 2982 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2983 "0319 READ_SPARAM mbxStatus error x%x "
2984 "hba state x%x>\n",
2985 mb->mbxStatus, vport->port_state);
dea3101e 2986 lpfc_linkdown(phba);
dea3101e
JB		 2987 goto out;
2988 }
2989
2e0fef85 2990 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
dea3101e 2991 sizeof (struct serv_parm));
0558056c 2992 lpfc_update_vport_wwn(vport);
92d7f7b0
JS		 2993 if (vport->port_type == LPFC_PHYSICAL_PORT) {
2994 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
2995 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
2996 }
2997
dea3101e
JB		 2998 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2999 kfree(mp);
2e0fef85 3000 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 3001 return;
3002
3003out:
3004 pmb->context1 = NULL;
3005 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3006 kfree(mp);
92d7f7b0
JS		 3007 lpfc_issue_clear_la(phba, vport);
3008 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 3009 return;
3010}
3011
3012static void
76a95d75 3013lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
dea3101e 3014{
92d7f7b0 3015 struct lpfc_vport *vport = phba->pport;
6fb120a7 3016 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
df9e1b59 3017 struct Scsi_Host *shost;
2e0fef85 3018 int i;
14691150
JS		 3019 struct lpfc_dmabuf *mp;
3020 int rc;
6fb120a7 3021 struct fcf_record *fcf_record;
38c20673 3022 uint32_t fc_flags = 0;
14691150 3023
92d7f7b0 3024 spin_lock_irq(&phba->hbalock);
76a95d75
JS		 3025 switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
3026 case LPFC_LINK_SPEED_1GHZ:
3027 case LPFC_LINK_SPEED_2GHZ:
3028 case LPFC_LINK_SPEED_4GHZ:
3029 case LPFC_LINK_SPEED_8GHZ:
3030 case LPFC_LINK_SPEED_10GHZ:
3031 case LPFC_LINK_SPEED_16GHZ:
3032 phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
f4b4c68f 3033 break;
92d7f7b0 3034 default:
76a95d75 3035 phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
92d7f7b0 3036 break;
dea3101e
JB		 3037 }
3038
e74c03c8
JS		 3039 if (phba->fc_topology &&
3040 phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {
3041 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3042 "3314 Toplogy changed was 0x%x is 0x%x\n",
3043 phba->fc_topology,
3044 bf_get(lpfc_mbx_read_top_topology, la));
3045 phba->fc_topology_changed = 1;
3046 }
3047
76a95d75 3048 phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
92d7f7b0 3049 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
dea3101e 3050
df9e1b59 3051 shost = lpfc_shost_from_vport(vport);
76a95d75 3052 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
92d7f7b0 3053 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
dea3101e 3054
6a9c52cf
JS		 3055 /* if npiv is enabled and this adapter supports npiv log
3056 * a message that npiv is not supported in this topology
3057 */
3058 if (phba->cfg_enable_npiv && phba->max_vpi)
495a714c
JS		 3059 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3060 "1309 Link Up Event npiv not supported in loop "
3061 "topology\n");
92d7f7b0 3062 /* Get Loop Map information */
38c20673
JS		 3063 if (bf_get(lpfc_mbx_read_top_il, la))
3064 fc_flags |= FC_LBIT;
dea3101e 3065
76a95d75
JS		 3066 vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
3067 i = la->lilpBde64.tus.f.bdeSize;
dea3101e
JB		 3068
3069 if (i == 0) {
3070 phba->alpa_map[0] = 0;
3071 } else {
e8b62011 3072 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
dea3101e
JB		 3073 int numalpa, j, k;
3074 union {
3075 uint8_t pamap[16];
3076 struct {
3077 uint32_t wd1;
3078 uint32_t wd2;
3079 uint32_t wd3;
3080 uint32_t wd4;
3081 } pa;
3082 } un;
3083 numalpa = phba->alpa_map[0];
3084 j = 0;
3085 while (j < numalpa) {
3086 memset(un.pamap, 0, 16);
3087 for (k = 1; j < numalpa; k++) {
3088 un.pamap[k - 1] =
3089 phba->alpa_map[j + 1];
3090 j++;
3091 if (k == 16)
3092 break;
3093 }
3094 /* Link Up Event ALPA map */
3095 lpfc_printf_log(phba,
92d7f7b0
JS		 3096 KERN_WARNING,
3097 LOG_LINK_EVENT,
e8b62011 3098 "1304 Link Up Event "
92d7f7b0
JS		 3099 "ALPA map Data: x%x "
3100 "x%x x%x x%x\n",
92d7f7b0
JS		 3101 un.pa.wd1, un.pa.wd2,
3102 un.pa.wd3, un.pa.wd4);
dea3101e
JB		 3103 }
3104 }
3105 }
3106 } else {
92d7f7b0 3107 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
78b2d852 3108 if (phba->max_vpi && phba->cfg_enable_npiv &&
df9e1b59 3109 (phba->sli_rev >= LPFC_SLI_REV3))
92d7f7b0
JS		 3110 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3111 }
2e0fef85 3112 vport->fc_myDID = phba->fc_pref_DID;
38c20673 3113 fc_flags |= FC_LBIT;
dea3101e 3114 }
92d7f7b0 3115 spin_unlock_irq(&phba->hbalock);
dea3101e 3116
38c20673
JS		 3117 if (fc_flags) {
3118 spin_lock_irq(shost->host_lock);
3119 vport->fc_flag |= fc_flags;
3120 spin_unlock_irq(shost->host_lock);
3121 }
3122
dea3101e 3123 lpfc_linkup(phba);
9f1177a3
JS		 3124 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3125 if (!sparam_mbox)
3126 goto out;
3127
3128 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
3129 if (rc) {
3130 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3131 goto out;
3132 }
3133 sparam_mbox->vport = vport;
3134 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
3135 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
3136 if (rc == MBX_NOT_FINISHED) {
3137 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
3138 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3139 kfree(mp);
3140 mempool_free(sparam_mbox, phba->mbox_mem_pool);
3141 goto out;
dea3101e
JB		 3142 }
3143
76a95d75 3144 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6fb120a7
JS		 3145 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3146 if (!cfglink_mbox)
3147 goto out;
2e0fef85 3148 vport->port_state = LPFC_LOCAL_CFG_LINK;
dea3101e 3149 lpfc_config_link(phba, cfglink_mbox);
2e0fef85 3150 cfglink_mbox->vport = vport;
25594c6b 3151 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
0b727fea 3152 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
6fb120a7
JS		 3153 if (rc == MBX_NOT_FINISHED) {
3154 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
3155 goto out;
3156 }
3157 } else {
32b9793f 3158 vport->port_state = LPFC_VPORT_UNKNOWN;
6fb120a7
JS		 3159 /*
3160 * Add the driver's default FCF record at FCF index 0 now. This
3161 * is phase 1 implementation that support FCF index 0 and driver
3162 * defaults.
3163 */
45ed1190 3164 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
6fb120a7
JS		 3165 fcf_record = kzalloc(sizeof(struct fcf_record),
3166 GFP_KERNEL);
3167 if (unlikely(!fcf_record)) {
3168 lpfc_printf_log(phba, KERN_ERR,
3169 LOG_MBOX | LOG_SLI,
b595076a 3170 "2554 Could not allocate memory for "
6fb120a7
JS		 3171 "fcf record\n");
3172 rc = -ENODEV;
3173 goto out;
3174 }
3175
3176 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
3177 LPFC_FCOE_FCF_DEF_INDEX);
3178 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
3179 if (unlikely(rc)) {
3180 lpfc_printf_log(phba, KERN_ERR,
3181 LOG_MBOX | LOG_SLI,
3182 "2013 Could not manually add FCF "
3183 "record 0, status %d\n", rc);
3184 rc = -ENODEV;
3185 kfree(fcf_record);
3186 goto out;
3187 }
3188 kfree(fcf_record);
3189 }
3190 /*
3191 * The driver is expected to do FIP/FCF. Call the port
3192 * and get the FCF Table.
3193 */
32b9793f 3194 spin_lock_irq(&phba->hbalock);
a93ff37a 3195 if (phba->hba_flag & FCF_TS_INPROG) {
32b9793f
JS		 3196 spin_unlock_irq(&phba->hbalock);
3197 return;
3198 }
0c9ab6f5
JS		 3199 /* This is the initial FCF discovery scan */
3200 phba->fcf.fcf_flag |= FCF_INIT_DISC;
32b9793f 3201 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 3202 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3203 "2778 Start FCF table scan at linkup\n");
0c9ab6f5
JS		 3204 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3205 LPFC_FCOE_FCF_GET_FIRST);
3206 if (rc) {
3207 spin_lock_irq(&phba->hbalock);
3208 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
3209 spin_unlock_irq(&phba->hbalock);
6fb120a7 3210 goto out;
0c9ab6f5 3211 }
38b92ef8 3212 /* Reset FCF roundrobin bmask for new discovery */
7d791df7 3213 lpfc_sli4_clear_fcf_rr_bmask(phba);
dea3101e 3214 }
6fb120a7
JS		 3215
3216 return;
92d7f7b0
JS		 3217out:
3218 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 3219 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3220 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
3221 vport->port_state, sparam_mbox, cfglink_mbox);
92d7f7b0
JS		 3222 lpfc_issue_clear_la(phba, vport);
3223 return;
dea3101e
JB		 3224}
3225
3226static void
84774a4d 3227lpfc_enable_la(struct lpfc_hba *phba)
2e0fef85 3228{
dea3101e
JB		 3229 uint32_t control;
3230 struct lpfc_sli *psli = &phba->sli;
2e0fef85 3231 spin_lock_irq(&phba->hbalock);
dea3101e 3232 psli->sli_flag |= LPFC_PROCESS_LA;
3772a991
JS		 3233 if (phba->sli_rev <= LPFC_SLI_REV3) {
3234 control = readl(phba->HCregaddr);
3235 control |= HC_LAINT_ENA;
3236 writel(control, phba->HCregaddr);
3237 readl(phba->HCregaddr); /* flush */
3238 }
2e0fef85 3239 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 3240}
3241
84774a4d
JS		 3242static void
3243lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
3244{
3245 lpfc_linkdown(phba);
3246 lpfc_enable_la(phba);
6fb120a7 3247 lpfc_unregister_unused_fcf(phba);
84774a4d
JS		 3248 /* turn on Link Attention interrupts - no CLEAR_LA needed */
3249}
3250
3251
dea3101e 3252/*
76a95d75 3253 * This routine handles processing a READ_TOPOLOGY mailbox
dea3101e
JB		 3254 * command upon completion. It is setup in the LPFC_MBOXQ
3255 * as the completion routine when the command is
3256 * handed off to the SLI layer.
3257 */
3258void
76a95d75 3259lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 3260{
2e0fef85
JS		 3261 struct lpfc_vport *vport = pmb->vport;
3262 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
76a95d75 3263 struct lpfc_mbx_read_top *la;
04c68496 3264 MAILBOX_t *mb = &pmb->u.mb;
dea3101e
JB		 3265 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3266
0d2b6b83
JS		 3267 /* Unblock ELS traffic */
3268 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e
JB		 3269 /* Check for error */
3270 if (mb->mbxStatus) {
ed957684 3271 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
e8b62011
JS		 3272 "1307 READ_LA mbox error x%x state x%x\n",
3273 mb->mbxStatus, vport->port_state);
dea3101e 3274 lpfc_mbx_issue_link_down(phba);
2e0fef85 3275 phba->link_state = LPFC_HBA_ERROR;
76a95d75 3276 goto lpfc_mbx_cmpl_read_topology_free_mbuf;
dea3101e
JB		 3277 }
3278
76a95d75 3279 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
dea3101e
JB		 3280
3281 memcpy(&phba->alpa_map[0], mp->virt, 128);
3282
2e0fef85 3283 spin_lock_irq(shost->host_lock);
76a95d75 3284 if (bf_get(lpfc_mbx_read_top_pb, la))
2e0fef85 3285 vport->fc_flag |= FC_BYPASSED_MODE;
c9f8735b 3286 else
2e0fef85
JS		 3287 vport->fc_flag &= ~FC_BYPASSED_MODE;
3288 spin_unlock_irq(shost->host_lock);
c9f8735b 3289
be0c0080 3290 if (phba->fc_eventTag <= la->eventTag) {
dea3101e 3291 phba->fc_stat.LinkMultiEvent++;
76a95d75 3292 if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP)
dea3101e
JB		 3293 if (phba->fc_eventTag != 0)
3294 lpfc_linkdown(phba);
92d7f7b0 3295 }
dea3101e
JB		 3296
3297 phba->fc_eventTag = la->eventTag;
be0c0080
JS		 3298 if (phba->sli_rev < LPFC_SLI_REV4) {
3299 spin_lock_irq(&phba->hbalock);
3300 if (bf_get(lpfc_mbx_read_top_mm, la))
3301 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
3302 else
3303 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
3304 spin_unlock_irq(&phba->hbalock);
3305 }
dea3101e 3306
4d9ab994 3307 phba->link_events++;
76a95d75 3308 if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) &&
be0c0080 3309 !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) {
dea3101e 3310 phba->fc_stat.LinkUp++;
2e0fef85 3311 if (phba->link_flag & LS_LOOPBACK_MODE) {
3163f725 3312 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011
JS		 3313 "1306 Link Up Event in loop back mode "
3314 "x%x received Data: x%x x%x x%x x%x\n",
3315 la->eventTag, phba->fc_eventTag,
76a95d75
JS		 3316 bf_get(lpfc_mbx_read_top_alpa_granted,
3317 la),
3318 bf_get(lpfc_mbx_read_top_link_spd, la),
e8b62011 3319 phba->alpa_map[0]);
5b8bd0c9
JS		 3320 } else {
3321 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 3322 "1303 Link Up Event x%x received "
84774a4d 3323 "Data: x%x x%x x%x x%x x%x x%x %d\n",
e8b62011 3324 la->eventTag, phba->fc_eventTag,
76a95d75
JS		 3325 bf_get(lpfc_mbx_read_top_alpa_granted,
3326 la),
3327 bf_get(lpfc_mbx_read_top_link_spd, la),
84774a4d 3328 phba->alpa_map[0],
76a95d75
JS		 3329 bf_get(lpfc_mbx_read_top_mm, la),
3330 bf_get(lpfc_mbx_read_top_fa, la),
84774a4d 3331 phba->wait_4_mlo_maint_flg);
5b8bd0c9 3332 }
92d7f7b0 3333 lpfc_mbx_process_link_up(phba, la);
76a95d75
JS		 3334 } else if (bf_get(lpfc_mbx_read_top_att_type, la) ==
3335 LPFC_ATT_LINK_DOWN) {
dea3101e 3336 phba->fc_stat.LinkDown++;
1b51197d 3337 if (phba->link_flag & LS_LOOPBACK_MODE)
3163f725
JS		 3338 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3339 "1308 Link Down Event in loop back mode "
3340 "x%x received "
3341 "Data: x%x x%x x%x\n",
3342 la->eventTag, phba->fc_eventTag,
3343 phba->pport->port_state, vport->fc_flag);
1b51197d 3344 else
3163f725 3345 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 3346 "1305 Link Down Event x%x received "
84774a4d
JS		 3347 "Data: x%x x%x x%x x%x x%x\n",
3348 la->eventTag, phba->fc_eventTag,
3349 phba->pport->port_state, vport->fc_flag,
76a95d75
JS		 3350 bf_get(lpfc_mbx_read_top_mm, la),
3351 bf_get(lpfc_mbx_read_top_fa, la));
84774a4d
JS		 3352 lpfc_mbx_issue_link_down(phba);
3353 }
be0c0080
JS		 3354 if ((phba->sli.sli_flag & LPFC_MENLO_MAINT) &&
3355 ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP))) {
84774a4d
JS		 3356 if (phba->link_state != LPFC_LINK_DOWN) {
3357 phba->fc_stat.LinkDown++;
3358 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3359 "1312 Link Down Event x%x received "
dea3101e 3360 "Data: x%x x%x x%x\n",
e8b62011 3361 la->eventTag, phba->fc_eventTag,
2e0fef85 3362 phba->pport->port_state, vport->fc_flag);
84774a4d
JS		 3363 lpfc_mbx_issue_link_down(phba);
3364 } else
3365 lpfc_enable_la(phba);
3366
3367 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
3368 "1310 Menlo Maint Mode Link up Event x%x rcvd "
3369 "Data: x%x x%x x%x\n",
3370 la->eventTag, phba->fc_eventTag,
3371 phba->pport->port_state, vport->fc_flag);
3372 /*
3373 * The cmnd that triggered this will be waiting for this
3374 * signal.
3375 */
3376 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
3377 if (phba->wait_4_mlo_maint_flg) {
3378 phba->wait_4_mlo_maint_flg = 0;
3379 wake_up_interruptible(&phba->wait_4_mlo_m_q);
3163f725 3380 }
84774a4d
JS		 3381 }
3382
be0c0080
JS		 3383 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3384 bf_get(lpfc_mbx_read_top_fa, la)) {
3385 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
84774a4d
JS		 3386 lpfc_issue_clear_la(phba, vport);
3387 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
76a95d75
JS		 3388 "1311 fa %d\n",
3389 bf_get(lpfc_mbx_read_top_fa, la));
dea3101e
JB		 3390 }
3391
76a95d75 3392lpfc_mbx_cmpl_read_topology_free_mbuf:
dea3101e
JB		 3393 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3394 kfree(mp);
3395 mempool_free(pmb, phba->mbox_mem_pool);
3396 return;
3397}
3398
3399/*
3400 * This routine handles processing a REG_LOGIN mailbox
3401 * command upon completion. It is setup in the LPFC_MBOXQ
3402 * as the completion routine when the command is
3403 * handed off to the SLI layer.
3404 */
3405void
2e0fef85 3406lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 3407{
2e0fef85 3408 struct lpfc_vport *vport = pmb->vport;
92d7f7b0 3409 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2e0fef85 3410 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
ffc95493 3411 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 3412
dea3101e 3413 pmb->context1 = NULL;
d439d286 3414 pmb->context2 = NULL;
dea3101e 3415
ffc95493
JS		 3416 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
3417 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3418
4042629e
JS		 3419 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
3420 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
ffc95493
JS		 3421 /* We rcvd a rscn after issuing this
3422 * mbox reg login, we may have cycled
3423 * back through the state and be
3424 * back at reg login state so this
3425 * mbox needs to be ignored becase
3426 * there is another reg login in
25985edc 3427 * process.
ffc95493
JS		 3428 */
3429 spin_lock_irq(shost->host_lock);
3430 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
3431 spin_unlock_irq(shost->host_lock);
ffc95493
JS		 3432 } else
3433 /* Good status, call state machine */
3434 lpfc_disc_state_machine(vport, ndlp, pmb,
3435 NLP_EVT_CMPL_REG_LOGIN);
3436
dea3101e
JB		 3437 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3438 kfree(mp);
2e0fef85 3439 mempool_free(pmb, phba->mbox_mem_pool);
fa4066b6
JS		 3440 /* decrement the node reference count held for this callback
3441 * function.
3442 */
329f9bc7 3443 lpfc_nlp_put(ndlp);
dea3101e
JB		 3444
3445 return;
3446}
3447
92d7f7b0
JS		 3448static void
3449lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3450{
04c68496 3451 MAILBOX_t *mb = &pmb->u.mb;
92d7f7b0
JS		 3452 struct lpfc_vport *vport = pmb->vport;
3453 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3454
3455 switch (mb->mbxStatus) {
3456 case 0x0011:
3457 case 0x0020:
e8b62011
JS		 3458 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3459 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
3460 mb->mbxStatus);
92d7f7b0 3461 break;
78730cfe
JS		 3462 /* If VPI is busy, reset the HBA */
3463 case 0x9700:
3464 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3465 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
3466 vport->vpi, mb->mbxStatus);
3467 if (!(phba->pport->load_flag & FC_UNLOADING))
3468 lpfc_workq_post_event(phba, NULL, NULL,
3469 LPFC_EVT_RESET_HBA);
92d7f7b0 3470 }
72100cc4 3471 spin_lock_irq(shost->host_lock);
c868595d 3472 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
1987807d 3473 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
72100cc4 3474 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS		 3475 vport->unreg_vpi_cmpl = VPORT_OK;
3476 mempool_free(pmb, phba->mbox_mem_pool);
1151e3ec 3477 lpfc_cleanup_vports_rrqs(vport, NULL);
92d7f7b0
JS		 3478 /*
3479 * This shost reference might have been taken at the beginning of
3480 * lpfc_vport_delete()
3481 */
1c6f4ef5 3482 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
92d7f7b0
JS		 3483 scsi_host_put(shost);
3484}
3485
d7c255b2 3486int
92d7f7b0
JS		 3487lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
3488{
3489 struct lpfc_hba *phba = vport->phba;
3490 LPFC_MBOXQ_t *mbox;
3491 int rc;
3492
3493 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3494 if (!mbox)
d7c255b2 3495 return 1;
92d7f7b0
JS		 3496
3497 lpfc_unreg_vpi(phba, vport->vpi, mbox);
3498 mbox->vport = vport;
3499 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
0b727fea 3500 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
92d7f7b0 3501 if (rc == MBX_NOT_FINISHED) {
e8b62011
JS		 3502 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3503 "1800 Could not issue unreg_vpi\n");
92d7f7b0
JS		 3504 mempool_free(mbox, phba->mbox_mem_pool);
3505 vport->unreg_vpi_cmpl = VPORT_ERROR;
d7c255b2 3506 return rc;
92d7f7b0 3507 }
d7c255b2 3508 return 0;
92d7f7b0
JS		 3509}
3510
3511static void
3512lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3513{
3514 struct lpfc_vport *vport = pmb->vport;
3515 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
04c68496 3516 MAILBOX_t *mb = &pmb->u.mb;
92d7f7b0
JS		 3517
3518 switch (mb->mbxStatus) {
3519 case 0x0011:
3520 case 0x9601:
3521 case 0x9602:
e8b62011
JS		 3522 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3523 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
3524 mb->mbxStatus);
92d7f7b0
JS		 3525 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
3526 spin_lock_irq(shost->host_lock);
3527 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
3528 spin_unlock_irq(shost->host_lock);
3529 vport->fc_myDID = 0;
3530 goto out;
3531 }
92d7f7b0 3532
72100cc4 3533 spin_lock_irq(shost->host_lock);
c868595d 3534 vport->vpi_state |= LPFC_VPI_REGISTERED;
695a814e 3535 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
72100cc4 3536 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS		 3537 vport->num_disc_nodes = 0;
3538 /* go thru NPR list and issue ELS PLOGIs */
3539 if (vport->fc_npr_cnt)
3540 lpfc_els_disc_plogi(vport);
3541
3542 if (!vport->num_disc_nodes) {
3543 spin_lock_irq(shost->host_lock);
3544 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3545 spin_unlock_irq(shost->host_lock);
3546 lpfc_can_disctmo(vport);
3547 }
3548 vport->port_state = LPFC_VPORT_READY;
3549
3550out:
3551 mempool_free(pmb, phba->mbox_mem_pool);
3552 return;
3553}
3554
21e9a0a5
JS		 3555/**
3556 * lpfc_create_static_vport - Read HBA config region to create static vports.
3557 * @phba: pointer to lpfc hba data structure.
3558 *
3559 * This routine issue a DUMP mailbox command for config region 22 to get
3560 * the list of static vports to be created. The function create vports
3561 * based on the information returned from the HBA.
3562 **/
3563void
3564lpfc_create_static_vport(struct lpfc_hba *phba)
3565{
3566 LPFC_MBOXQ_t *pmb = NULL;
3567 MAILBOX_t *mb;
3568 struct static_vport_info *vport_info;
cdcc2343 3569 int mbx_wait_rc = 0, i;
21e9a0a5
JS		 3570 struct fc_vport_identifiers vport_id;
3571 struct fc_vport *new_fc_vport;
3572 struct Scsi_Host *shost;
3573 struct lpfc_vport *vport;
3574 uint16_t offset = 0;
3575 uint8_t *vport_buff;
1c6834a7
JS		 3576 struct lpfc_dmabuf *mp;
3577 uint32_t byte_count = 0;
21e9a0a5
JS		 3578
3579 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3580 if (!pmb) {
3581 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3582 "0542 lpfc_create_static_vport failed to"
3583 " allocate mailbox memory\n");
3584 return;
3585 }
cdcc2343 3586 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
21e9a0a5
JS		 3587 mb = &pmb->u.mb;
3588
3589 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
3590 if (!vport_info) {
3591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3592 "0543 lpfc_create_static_vport failed to"
3593 " allocate vport_info\n");
3594 mempool_free(pmb, phba->mbox_mem_pool);
3595 return;
3596 }
3597
3598 vport_buff = (uint8_t *) vport_info;
3599 do {
cdcc2343
JS		 3600 /* free dma buffer from previous round */
3601 if (pmb->context1) {
3602 mp = (struct lpfc_dmabuf *)pmb->context1;
3603 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3604 kfree(mp);
3605 }
1c6834a7
JS		 3606 if (lpfc_dump_static_vport(phba, pmb, offset))
3607 goto out;
3608
21e9a0a5 3609 pmb->vport = phba->pport;
cdcc2343
JS		 3610 mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,
3611 LPFC_MBOX_TMO);
21e9a0a5 3612
cdcc2343 3613 if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {
21e9a0a5
JS		 3614 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3615 "0544 lpfc_create_static_vport failed to"
3616 " issue dump mailbox command ret 0x%x "
3617 "status 0x%x\n",
cdcc2343 3618 mbx_wait_rc, mb->mbxStatus);
21e9a0a5
JS		 3619 goto out;
3620 }
3621
1c6834a7
JS		 3622 if (phba->sli_rev == LPFC_SLI_REV4) {
3623 byte_count = pmb->u.mqe.un.mb_words[5];
cdcc2343 3624 mp = (struct lpfc_dmabuf *)pmb->context1;
1c6834a7
JS		 3625 if (byte_count > sizeof(struct static_vport_info) -
3626 offset)
3627 byte_count = sizeof(struct static_vport_info)
3628 - offset;
3629 memcpy(vport_buff + offset, mp->virt, byte_count);
3630 offset += byte_count;
3631 } else {
3632 if (mb->un.varDmp.word_cnt >
3633 sizeof(struct static_vport_info) - offset)
3634 mb->un.varDmp.word_cnt =
3635 sizeof(struct static_vport_info)
3636 - offset;
3637 byte_count = mb->un.varDmp.word_cnt;
3638 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
3639 vport_buff + offset,
3640 byte_count);
3641
3642 offset += byte_count;
3643 }
21e9a0a5 3644
1c6834a7 3645 } while (byte_count &&
21e9a0a5
JS		 3646 offset < sizeof(struct static_vport_info));
3647
3648
3649 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
3650 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
3651 != VPORT_INFO_REV)) {
3652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3653 "0545 lpfc_create_static_vport bad"
3654 " information header 0x%x 0x%x\n",
3655 le32_to_cpu(vport_info->signature),
3656 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
3657
3658 goto out;
3659 }
3660
3661 shost = lpfc_shost_from_vport(phba->pport);
3662
3663 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
3664 memset(&vport_id, 0, sizeof(vport_id));
3665 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
3666 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
3667 if (!vport_id.port_name || !vport_id.node_name)
3668 continue;
3669
3670 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
3671 vport_id.vport_type = FC_PORTTYPE_NPIV;
3672 vport_id.disable = false;
3673 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
3674
3675 if (!new_fc_vport) {
3676 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3677 "0546 lpfc_create_static_vport failed to"
e4e74273 3678 " create vport\n");
21e9a0a5
JS		 3679 continue;
3680 }
3681
3682 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
3683 vport->vport_flag |= STATIC_VPORT;
3684 }
3685
3686out:
21e9a0a5 3687 kfree(vport_info);
cdcc2343
JS		 3688 if (mbx_wait_rc != MBX_TIMEOUT) {
3689 if (pmb->context1) {
3690 mp = (struct lpfc_dmabuf *)pmb->context1;
1c6834a7
JS		 3691 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3692 kfree(mp);
3693 }
21e9a0a5 3694 mempool_free(pmb, phba->mbox_mem_pool);
1c6834a7 3695 }
21e9a0a5
JS		 3696
3697 return;
3698}
3699
dea3101e
JB		 3700/*
3701 * This routine handles processing a Fabric REG_LOGIN mailbox
3702 * command upon completion. It is setup in the LPFC_MBOXQ
3703 * as the completion routine when the command is
3704 * handed off to the SLI layer.
3705 */
3706void
2e0fef85 3707lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 3708{
92d7f7b0 3709 struct lpfc_vport *vport = pmb->vport;
21e9a0a5 3710 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85 3711 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
92d7f7b0 3712 struct lpfc_nodelist *ndlp;
df9e1b59 3713 struct Scsi_Host *shost;
dea3101e 3714
549e55cd 3715 ndlp = (struct lpfc_nodelist *) pmb->context2;
329f9bc7
JS		 3716 pmb->context1 = NULL;
3717 pmb->context2 = NULL;
d439d286 3718
dea3101e 3719 if (mb->mbxStatus) {
21e9a0a5
JS		 3720 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3721 "0258 Register Fabric login error: 0x%x\n",
3722 mb->mbxStatus);
dea3101e
JB		 3723 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3724 kfree(mp);
329f9bc7 3725 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 3726
76a95d75 3727 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
92d7f7b0
JS		 3728 /* FLOGI failed, use loop map to make discovery list */
3729 lpfc_disc_list_loopmap(vport);
3730
3731 /* Start discovery */
3732 lpfc_disc_start(vport);
e47c9093
JS		 3733 /* Decrement the reference count to ndlp after the
3734 * reference to the ndlp are done.
3735 */
3736 lpfc_nlp_put(ndlp);
92d7f7b0
JS		 3737 return;
3738 }
3739
3740 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e47c9093
JS		 3741 /* Decrement the reference count to ndlp after the reference
3742 * to the ndlp are done.
3743 */
3744 lpfc_nlp_put(ndlp);
dea3101e
JB		 3745 return;
3746 }
3747
6d368e53
JS		 3748 if (phba->sli_rev < LPFC_SLI_REV4)
3749 ndlp->nlp_rpi = mb->un.varWords[0];
4042629e 3750 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
dea3101e 3751 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 3752 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 3753
2e0fef85 3754 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
4b40c59e
JS		 3755 /* when physical port receive logo donot start
3756 * vport discovery */
3757 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
3758 lpfc_start_fdiscs(phba);
df9e1b59
JS		 3759 else {
3760 shost = lpfc_shost_from_vport(vport);
3761 spin_lock_irq(shost->host_lock);
4b40c59e 3762 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
df9e1b59
JS		 3763 spin_unlock_irq(shost->host_lock);
3764 }
92d7f7b0 3765 lpfc_do_scr_ns_plogi(phba, vport);
dea3101e
JB		 3766 }
3767
3768 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3769 kfree(mp);
329f9bc7 3770 mempool_free(pmb, phba->mbox_mem_pool);
e47c9093
JS		 3771
3772 /* Drop the reference count from the mbox at the end after
3773 * all the current reference to the ndlp have been done.
3774 */
3775 lpfc_nlp_put(ndlp);
dea3101e
JB		 3776 return;
3777}
3778
3779/*
3780 * This routine handles processing a NameServer REG_LOGIN mailbox
3781 * command upon completion. It is setup in the LPFC_MBOXQ
3782 * as the completion routine when the command is
3783 * handed off to the SLI layer.
3784 */
3785void
2e0fef85 3786lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 3787{
21e9a0a5 3788 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85
JS		 3789 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3790 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3791 struct lpfc_vport *vport = pmb->vport;
dea3101e 3792
d439d286
JS		 3793 pmb->context1 = NULL;
3794 pmb->context2 = NULL;
3795
dea3101e 3796 if (mb->mbxStatus) {
92d7f7b0 3797out:
21e9a0a5
JS		 3798 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3799 "0260 Register NameServer error: 0x%x\n",
3800 mb->mbxStatus);
fa4066b6
JS		 3801 /* decrement the node reference count held for this
3802 * callback function.
3803 */
329f9bc7 3804 lpfc_nlp_put(ndlp);
dea3101e
JB		 3805 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3806 kfree(mp);
de0c5b32 3807 mempool_free(pmb, phba->mbox_mem_pool);
87af33fe
JS		 3808
3809 /* If no other thread is using the ndlp, free it */
3810 lpfc_nlp_not_used(ndlp);
dea3101e 3811
76a95d75 3812 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
92d7f7b0
JS		 3813 /*
3814 * RegLogin failed, use loop map to make discovery
3815 * list
3816 */
3817 lpfc_disc_list_loopmap(vport);
dea3101e 3818
92d7f7b0
JS		 3819 /* Start discovery */
3820 lpfc_disc_start(vport);
3821 return;
3822 }
3823 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
dea3101e
JB		 3824 return;
3825 }
3826
6d368e53
JS		 3827 if (phba->sli_rev < LPFC_SLI_REV4)
3828 ndlp->nlp_rpi = mb->un.varWords[0];
4042629e 3829 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
dea3101e 3830 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 3831 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 3832
2e0fef85
JS		 3833 if (vport->port_state < LPFC_VPORT_READY) {
3834 /* Link up discovery requires Fabric registration. */
92d7f7b0
JS		 3835 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
3836 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
3837 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
3838 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
3839 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
3840
3841 /* Issue SCR just before NameServer GID_FT Query */
3842 lpfc_issue_els_scr(vport, SCR_DID, 0);
dea3101e
JB		 3843 }
3844
2e0fef85 3845 vport->fc_ns_retry = 0;
dea3101e 3846 /* Good status, issue CT Request to NameServer */
92d7f7b0 3847 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
dea3101e 3848 /* Cannot issue NameServer Query, so finish up discovery */
92d7f7b0 3849 goto out;
dea3101e
JB		 3850 }
3851
fa4066b6
JS		 3852 /* decrement the node reference count held for this
3853 * callback function.
3854 */
329f9bc7 3855 lpfc_nlp_put(ndlp);
dea3101e
JB		 3856 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3857 kfree(mp);
2e0fef85 3858 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 3859
3860 return;
3861}
3862
3863static void
2e0fef85 3864lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 3865{
2e0fef85
JS		 3866 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3867 struct fc_rport *rport;
dea3101e
JB		 3868 struct lpfc_rport_data *rdata;
3869 struct fc_rport_identifiers rport_ids;
2e0fef85 3870 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 3871
3872 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 3873 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
3874 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e
JB		 3875 rport_ids.port_id = ndlp->nlp_DID;
3876 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e 3877
329f9bc7
JS		 3878 /*
3879 * We leave our node pointer in rport->dd_data when we unregister a
3880 * FCP target port. But fc_remote_port_add zeros the space to which
3881 * rport->dd_data points. So, if we're reusing a previously
3882 * registered port, drop the reference that we took the last time we
3883 * registered the port.
3884 */
3885 if (ndlp->rport && ndlp->rport->dd_data &&
e47c9093 3886 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
329f9bc7 3887 lpfc_nlp_put(ndlp);
858c9f6c
JS		 3888
3889 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
3890 "rport add: did:x%x flg:x%x type x%x",
3891 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3892
9589b062
JS		 3893 /* Don't add the remote port if unloading. */
3894 if (vport->load_flag & FC_UNLOADING)
3895 return;
3896
2e0fef85 3897 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
329f9bc7 3898 if (!rport || !get_device(&rport->dev)) {
dea3101e
JB		 3899 dev_printk(KERN_WARNING, &phba->pcidev->dev,
3900 "Warning: fc_remote_port_add failed\n");
3901 return;
3902 }
3903
3904 /* initialize static port data */
3905 rport->maxframe_size = ndlp->nlp_maxframe;
3906 rport->supported_classes = ndlp->nlp_class_sup;
dea3101e 3907 rdata = rport->dd_data;
329f9bc7 3908 rdata->pnode = lpfc_nlp_get(ndlp);
23dc04f1
JSEC		 3909
3910 if (ndlp->nlp_type & NLP_FCP_TARGET)
3911 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
3912 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
3913 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
3914
23dc04f1
JSEC		 3915 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
3916 fc_remote_port_rolechg(rport, rport_ids.roles);
3917
34f5ad8b
JS		 3918 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3919 "3183 rport register x%06x, rport %p role x%x\n",
3920 ndlp->nlp_DID, rport, rport_ids.roles);
3921
071fbd3d 3922 if ((rport->scsi_target_id != -1) &&
92d7f7b0 3923 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
071fbd3d
JS		 3924 ndlp->nlp_sid = rport->scsi_target_id;
3925 }
19a7b4ae
JSEC		 3926 return;
3927}
3928
3929static void
2e0fef85 3930lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
19a7b4ae
JSEC		 3931{
3932 struct fc_rport *rport = ndlp->rport;
c01f3208 3933
858c9f6c
JS		 3934 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
3935 "rport delete: did:x%x flg:x%x type x%x",
3936 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3937
34f5ad8b
JS		 3938 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3939 "3184 rport unregister x%06x, rport %p\n",
3940 ndlp->nlp_DID, rport);
3941
19a7b4ae 3942 fc_remote_port_delete(rport);
dea3101e
JB		 3943
3944 return;
3945}
3946
de0c5b32 3947static void
2e0fef85 3948lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
dea3101e 3949{
2e0fef85
JS		 3950 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3951
3952 spin_lock_irq(shost->host_lock);
de0c5b32
JS		 3953 switch (state) {
3954 case NLP_STE_UNUSED_NODE:
2e0fef85 3955 vport->fc_unused_cnt += count;
de0c5b32
JS		 3956 break;
3957 case NLP_STE_PLOGI_ISSUE:
2e0fef85 3958 vport->fc_plogi_cnt += count;
de0c5b32
JS		 3959 break;
3960 case NLP_STE_ADISC_ISSUE:
2e0fef85 3961 vport->fc_adisc_cnt += count;
dea3101e 3962 break;
de0c5b32 3963 case NLP_STE_REG_LOGIN_ISSUE:
2e0fef85 3964 vport->fc_reglogin_cnt += count;
de0c5b32
JS		 3965 break;
3966 case NLP_STE_PRLI_ISSUE:
2e0fef85 3967 vport->fc_prli_cnt += count;
de0c5b32
JS		 3968 break;
3969 case NLP_STE_UNMAPPED_NODE:
2e0fef85 3970 vport->fc_unmap_cnt += count;
de0c5b32
JS		 3971 break;
3972 case NLP_STE_MAPPED_NODE:
2e0fef85 3973 vport->fc_map_cnt += count;
de0c5b32
JS		 3974 break;
3975 case NLP_STE_NPR_NODE:
2e0fef85 3976 vport->fc_npr_cnt += count;
de0c5b32
JS		 3977 break;
3978 }
2e0fef85 3979 spin_unlock_irq(shost->host_lock);
de0c5b32 3980}
66a9ed66 3981
de0c5b32 3982static void
2e0fef85 3983lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
de0c5b32
JS		 3984 int old_state, int new_state)
3985{
2e0fef85
JS		 3986 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3987
de0c5b32 3988 if (new_state == NLP_STE_UNMAPPED_NODE) {
de0c5b32
JS		 3989 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
3990 ndlp->nlp_type |= NLP_FC_NODE;
3991 }
3992 if (new_state == NLP_STE_MAPPED_NODE)
3993 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
3994 if (new_state == NLP_STE_NPR_NODE)
3995 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
3996
3997 /* Transport interface */
3998 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
3999 old_state == NLP_STE_UNMAPPED_NODE)) {
2e0fef85
JS		 4000 vport->phba->nport_event_cnt++;
4001 lpfc_unregister_remote_port(ndlp);
de0c5b32 4002 }
dea3101e 4003
de0c5b32
JS		 4004 if (new_state == NLP_STE_MAPPED_NODE ||
4005 new_state == NLP_STE_UNMAPPED_NODE) {
2e0fef85 4006 vport->phba->nport_event_cnt++;
858c9f6c
JS		 4007 /*
4008 * Tell the fc transport about the port, if we haven't
4009 * already. If we have, and it's a scsi entity, be
4010 * sure to unblock any attached scsi devices
4011 */
4012 lpfc_register_remote_port(vport, ndlp);
de0c5b32 4013 }
ea2151b4
JS		 4014 if ((new_state == NLP_STE_MAPPED_NODE) &&
4015 (vport->stat_data_enabled)) {
4016 /*
4017 * A new target is discovered, if there is no buffer for
4018 * statistical data collection allocate buffer.
4019 */
4020 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
4021 sizeof(struct lpfc_scsicmd_bkt),
4022 GFP_KERNEL);
4023
4024 if (!ndlp->lat_data)
4025 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
4026 "0286 lpfc_nlp_state_cleanup failed to "
4027 "allocate statistical data buffer DID "
4028 "0x%x\n", ndlp->nlp_DID);
4029 }
858c9f6c
JS		 4030 /*
4031 * if we added to Mapped list, but the remote port
4032 * registration failed or assigned a target id outside
4033 * our presentable range - move the node to the
4034 * Unmapped List
4035 */
de0c5b32
JS		 4036 if (new_state == NLP_STE_MAPPED_NODE &&
4037 (!ndlp->rport ||
4038 ndlp->rport->scsi_target_id == -1 ||
4039 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
2e0fef85 4040 spin_lock_irq(shost->host_lock);
de0c5b32 4041 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
2e0fef85
JS		 4042 spin_unlock_irq(shost->host_lock);
4043 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 4044 }
de0c5b32
JS		 4045}
4046
685f0bf7
JS		 4047static char *
4048lpfc_nlp_state_name(char *buffer, size_t size, int state)
4049{
4050 static char *states[] = {
4051 [NLP_STE_UNUSED_NODE] = "UNUSED",
4052 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
4053 [NLP_STE_ADISC_ISSUE] = "ADISC",
4054 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
4055 [NLP_STE_PRLI_ISSUE] = "PRLI",
086a345f 4056 [NLP_STE_LOGO_ISSUE] = "LOGO",
685f0bf7
JS		 4057 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
4058 [NLP_STE_MAPPED_NODE] = "MAPPED",
4059 [NLP_STE_NPR_NODE] = "NPR",
4060 };
4061
311464ec 4062 if (state < NLP_STE_MAX_STATE && states[state])
685f0bf7
JS		 4063 strlcpy(buffer, states[state], size);
4064 else
4065 snprintf(buffer, size, "unknown (%d)", state);
4066 return buffer;
4067}
4068
de0c5b32 4069void
2e0fef85
JS		 4070lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4071 int state)
de0c5b32 4072{
2e0fef85 4073 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
de0c5b32 4074 int old_state = ndlp->nlp_state;
685f0bf7 4075 char name1[16], name2[16];
de0c5b32 4076
e8b62011
JS		 4077 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4078 "0904 NPort state transition x%06x, %s -> %s\n",
4079 ndlp->nlp_DID,
4080 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
4081 lpfc_nlp_state_name(name2, sizeof(name2), state));
858c9f6c
JS		 4082
4083 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4084 "node statechg did:x%x old:%d ste:%d",
4085 ndlp->nlp_DID, old_state, state);
4086
de0c5b32 4087 if (old_state == NLP_STE_NPR_NODE &&
de0c5b32 4088 state != NLP_STE_NPR_NODE)
2e0fef85 4089 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32
JS		 4090 if (old_state == NLP_STE_UNMAPPED_NODE) {
4091 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
4092 ndlp->nlp_type &= ~NLP_FC_NODE;
4093 }
4094
685f0bf7 4095 if (list_empty(&ndlp->nlp_listp)) {
2e0fef85
JS		 4096 spin_lock_irq(shost->host_lock);
4097 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4098 spin_unlock_irq(shost->host_lock);
685f0bf7 4099 } else if (old_state)
2e0fef85 4100 lpfc_nlp_counters(vport, old_state, -1);
de0c5b32
JS		 4101
4102 ndlp->nlp_state = state;
2e0fef85
JS		 4103 lpfc_nlp_counters(vport, state, 1);
4104 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
de0c5b32
JS		 4105}
4106
e47c9093
JS		 4107void
4108lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4109{
4110 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4111
4112 if (list_empty(&ndlp->nlp_listp)) {
4113 spin_lock_irq(shost->host_lock);
4114 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
4115 spin_unlock_irq(shost->host_lock);
4116 }
4117}
4118
de0c5b32 4119void
2e0fef85 4120lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 4121{
2e0fef85
JS		 4122 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4123
0d2b6b83 4124 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32 4125 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2e0fef85
JS		 4126 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4127 spin_lock_irq(shost->host_lock);
685f0bf7 4128 list_del_init(&ndlp->nlp_listp);
2e0fef85 4129 spin_unlock_irq(shost->host_lock);
858c9f6c 4130 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
e47c9093
JS		 4131 NLP_STE_UNUSED_NODE);
4132}
4133
4d9db01e 4134static void
e47c9093
JS		 4135lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4136{
0d2b6b83 4137 lpfc_cancel_retry_delay_tmo(vport, ndlp);
e47c9093
JS		 4138 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
4139 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
4140 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
4141 NLP_STE_UNUSED_NODE);
4142}
109f6ed0 4143/**
3621a710 4144 * lpfc_initialize_node - Initialize all fields of node object
109f6ed0
JS		 4145 * @vport: Pointer to Virtual Port object.
4146 * @ndlp: Pointer to FC node object.
4147 * @did: FC_ID of the node.
a257bf90
JS		 4148 *
4149 * This function is always called when node object need to be initialized.
4150 * It initializes all the fields of the node object. Although the reference
4151 * to phba from @ndlp can be obtained indirectly through it's reference to
4152 * @vport, a direct reference to phba is taken here by @ndlp. This is due
4153 * to the life-span of the @ndlp might go beyond the existence of @vport as
4154 * the final release of ndlp is determined by its reference count. And, the
4155 * operation on @ndlp needs the reference to phba.
109f6ed0
JS		 4156 **/
4157static inline void
4158lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4159 uint32_t did)
4160{
4161 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
4162 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
4163 init_timer(&ndlp->nlp_delayfunc);
4164 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
4165 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
4166 ndlp->nlp_DID = did;
4167 ndlp->vport = vport;
a257bf90 4168 ndlp->phba = vport->phba;
109f6ed0
JS		 4169 ndlp->nlp_sid = NLP_NO_SID;
4170 kref_init(&ndlp->kref);
4171 NLP_INT_NODE_ACT(ndlp);
4172 atomic_set(&ndlp->cmd_pending, 0);
7dc517df 4173 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4042629e
JS		 4174 if (vport->phba->sli_rev == LPFC_SLI_REV4)
4175 ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba);
109f6ed0 4176}
e47c9093
JS		 4177
4178struct lpfc_nodelist *
4179lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4180 int state)
4181{
4182 struct lpfc_hba *phba = vport->phba;
4183 uint32_t did;
4184 unsigned long flags;
4185
4186 if (!ndlp)
4187 return NULL;
4188
4189 spin_lock_irqsave(&phba->ndlp_lock, flags);
4190 /* The ndlp should not be in memory free mode */
4191 if (NLP_CHK_FREE_REQ(ndlp)) {
4192 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4193 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4194 "0277 lpfc_enable_node: ndlp:x%p "
4195 "usgmap:x%x refcnt:%d\n",
4196 (void *)ndlp, ndlp->nlp_usg_map,
4197 atomic_read(&ndlp->kref.refcount));
4198 return NULL;
4199 }
4200 /* The ndlp should not already be in active mode */
4201 if (NLP_CHK_NODE_ACT(ndlp)) {
4202 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4203 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4204 "0278 lpfc_enable_node: ndlp:x%p "
4205 "usgmap:x%x refcnt:%d\n",
4206 (void *)ndlp, ndlp->nlp_usg_map,
4207 atomic_read(&ndlp->kref.refcount));
4208 return NULL;
4209 }
4210
4211 /* Keep the original DID */
4212 did = ndlp->nlp_DID;
4213
4214 /* re-initialize ndlp except of ndlp linked list pointer */
4215 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
4216 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
109f6ed0 4217 lpfc_initialize_node(vport, ndlp, did);
e47c9093
JS		 4218
4219 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4220
4221 if (state != NLP_STE_UNUSED_NODE)
4222 lpfc_nlp_set_state(vport, ndlp, state);
4223
4224 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4225 "node enable: did:x%x",
4226 ndlp->nlp_DID, 0, 0);
4227 return ndlp;
de0c5b32
JS		 4228}
4229
4230void
2e0fef85 4231lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 4232{
87af33fe 4233 /*
fa4066b6 4234 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
87af33fe 4235 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
fa4066b6
JS		 4236 * the ndlp from the vport. The ndlp marked as UNUSED on the list
4237 * until ALL other outstanding threads have completed. We check
4238 * that the ndlp not already in the UNUSED state before we proceed.
87af33fe 4239 */
fa4066b6
JS		 4240 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4241 return;
51ef4c26 4242 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
1151e3ec
JS		 4243 if (vport->phba->sli_rev == LPFC_SLI_REV4)
4244 lpfc_cleanup_vports_rrqs(vport, ndlp);
87af33fe 4245 lpfc_nlp_put(ndlp);
98c9ea5c 4246 return;
dea3101e
JB		 4247}
4248
4249/*
4250 * Start / ReStart rescue timer for Discovery / RSCN handling
4251 */
4252void
2e0fef85 4253lpfc_set_disctmo(struct lpfc_vport *vport)
dea3101e 4254{
2e0fef85
JS		 4255 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4256 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 4257 uint32_t tmo;
4258
2e0fef85 4259 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
025dfdaf 4260 /* For FAN, timeout should be greater than edtov */
c9f8735b
JW		 4261 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
4262 } else {
025dfdaf 4263 /* Normal discovery timeout should be > than ELS/CT timeout
c9f8735b
JW		 4264 * FC spec states we need 3 * ratov for CT requests
4265 */
4266 tmo = ((phba->fc_ratov * 3) + 3);
4267 }
dea3101e 4268
858c9f6c
JS		 4269
4270 if (!timer_pending(&vport->fc_disctmo)) {
4271 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4272 "set disc timer: tmo:x%x state:x%x flg:x%x",
4273 tmo, vport->port_state, vport->fc_flag);
4274 }
4275
256ec0d0 4276 mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));
2e0fef85
JS		 4277 spin_lock_irq(shost->host_lock);
4278 vport->fc_flag |= FC_DISC_TMO;
4279 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 4280
4281 /* Start Discovery Timer state <hba_state> */
e8b62011
JS		 4282 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4283 "0247 Start Discovery Timer state x%x "
4284 "Data: x%x x%lx x%x x%x\n",
4285 vport->port_state, tmo,
4286 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
4287 vport->fc_adisc_cnt);
dea3101e
JB		 4288
4289 return;
4290}
4291
4292/*
4293 * Cancel rescue timer for Discovery / RSCN handling
4294 */
4295int
2e0fef85 4296lpfc_can_disctmo(struct lpfc_vport *vport)
dea3101e 4297{
2e0fef85 4298 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85
JS		 4299 unsigned long iflags;
4300
858c9f6c
JS		 4301 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4302 "can disc timer: state:x%x rtry:x%x flg:x%x",
4303 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
4304
dea3101e 4305 /* Turn off discovery timer if its running */
2e0fef85
JS		 4306 if (vport->fc_flag & FC_DISC_TMO) {
4307 spin_lock_irqsave(shost->host_lock, iflags);
4308 vport->fc_flag &= ~FC_DISC_TMO;
4309 spin_unlock_irqrestore(shost->host_lock, iflags);
4310 del_timer_sync(&vport->fc_disctmo);
4311 spin_lock_irqsave(&vport->work_port_lock, iflags);
4312 vport->work_port_events &= ~WORKER_DISC_TMO;
4313 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
dea3101e
JB		 4314 }
4315
4316 /* Cancel Discovery Timer state <hba_state> */
e8b62011
JS		 4317 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4318 "0248 Cancel Discovery Timer state x%x "
4319 "Data: x%x x%x x%x\n",
4320 vport->port_state, vport->fc_flag,
4321 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
2fe165b6 4322 return 0;
dea3101e
JB		 4323}
4324
4325/*
4326 * Check specified ring for outstanding IOCB on the SLI queue
4327 * Return true if iocb matches the specified nport
4328 */
4329int
2e0fef85
JS		 4330lpfc_check_sli_ndlp(struct lpfc_hba *phba,
4331 struct lpfc_sli_ring *pring,
4332 struct lpfc_iocbq *iocb,
4333 struct lpfc_nodelist *ndlp)
dea3101e 4334{
2e0fef85
JS		 4335 struct lpfc_sli *psli = &phba->sli;
4336 IOCB_t *icmd = &iocb->iocb;
92d7f7b0
JS		 4337 struct lpfc_vport *vport = ndlp->vport;
4338
4339 if (iocb->vport != vport)
4340 return 0;
4341
dea3101e
JB		 4342 if (pring->ringno == LPFC_ELS_RING) {
4343 switch (icmd->ulpCommand) {
4344 case CMD_GEN_REQUEST64_CR:
21e9a0a5 4345 if (iocb->context_un.ndlp == ndlp)
2fe165b6 4346 return 1;
dea3101e 4347 case CMD_ELS_REQUEST64_CR:
10d4e957
JS		 4348 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
4349 return 1;
dea3101e
JB		 4350 case CMD_XMIT_ELS_RSP64_CX:
4351 if (iocb->context1 == (uint8_t *) ndlp)
2fe165b6 4352 return 1;
dea3101e 4353 }
a4bc3379 4354 } else if (pring->ringno == psli->extra_ring) {
dea3101e
JB		 4355
4356 } else if (pring->ringno == psli->fcp_ring) {
4357 /* Skip match check if waiting to relogin to FCP target */
4358 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
92d7f7b0 4359 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
2fe165b6 4360 return 0;
dea3101e
JB		 4361 }
4362 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
2fe165b6 4363 return 1;
dea3101e
JB		 4364 }
4365 } else if (pring->ringno == psli->next_ring) {
4366
4367 }
2fe165b6 4368 return 0;
dea3101e
JB		 4369}
4370
4371/*
4372 * Free resources / clean up outstanding I/Os
4373 * associated with nlp_rpi in the LPFC_NODELIST entry.
4374 */
4375static int
2e0fef85 4376lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 4377{
2534ba75 4378 LIST_HEAD(completions);
dea3101e
JB		 4379 struct lpfc_sli *psli;
4380 struct lpfc_sli_ring *pring;
4381 struct lpfc_iocbq *iocb, *next_iocb;
6a9c52cf 4382 uint32_t i;
dea3101e 4383
92d7f7b0
JS		 4384 lpfc_fabric_abort_nport(ndlp);
4385
dea3101e
JB		 4386 /*
4387 * Everything that matches on txcmplq will be returned
4388 * by firmware with a no rpi error.
4389 */
4390 psli = &phba->sli;
4042629e 4391 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
dea3101e
JB		 4392 /* Now process each ring */
4393 for (i = 0; i < psli->num_rings; i++) {
4394 pring = &psli->ring[i];
4395
2e0fef85 4396 spin_lock_irq(&phba->hbalock);
dea3101e 4397 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
2e0fef85 4398 list) {
dea3101e
JB		 4399 /*
4400 * Check to see if iocb matches the nport we are
4401 * looking for
4402 */
92d7f7b0
JS		 4403 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
4404 ndlp))) {
dea3101e
JB		 4405 /* It matches, so deque and call compl
4406 with an error */
2534ba75
JS		 4407 list_move_tail(&iocb->list,
4408 &completions);
dea3101e
JB		 4409 }
4410 }
2e0fef85 4411 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 4412 }
4413 }
2534ba75 4414
a257bf90
JS		 4415 /* Cancel all the IOCBs from the completions list */
4416 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4417 IOERR_SLI_ABORTED);
2534ba75 4418
2fe165b6 4419 return 0;
dea3101e
JB		 4420}
4421
086a345f
JS		 4422/**
4423 * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
4424 * @phba: Pointer to HBA context object.
4425 * @pmb: Pointer to mailbox object.
4426 *
4427 * This function will issue an ELS LOGO command after completing
4428 * the UNREG_RPI.
4429 **/
4430void
4431lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4432{
4433 struct lpfc_vport *vport = pmb->vport;
4434 struct lpfc_nodelist *ndlp;
4435
4436 ndlp = (struct lpfc_nodelist *)(pmb->context1);
4437 if (!ndlp)
4438 return;
4439 lpfc_issue_els_logo(vport, ndlp, 0);
4440}
4441
dea3101e
JB		 4442/*
4443 * Free rpi associated with LPFC_NODELIST entry.
4444 * This routine is called from lpfc_freenode(), when we are removing
4445 * a LPFC_NODELIST entry. It is also called if the driver initiates a
4446 * LOGO that completes successfully, and we are waiting to PLOGI back
4447 * to the remote NPort. In addition, it is called after we receive
4448 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
4449 * we are waiting to PLOGI back to the remote NPort.
4450 */
4451int
2e0fef85 4452lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 4453{
2e0fef85
JS		 4454 struct lpfc_hba *phba = vport->phba;
4455 LPFC_MBOXQ_t *mbox;
dea3101e 4456 int rc;
6d368e53 4457 uint16_t rpi;
dea3101e 4458
4042629e 4459 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
2e0fef85
JS		 4460 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4461 if (mbox) {
6d368e53
JS		 4462 /* SLI4 ports require the physical rpi value. */
4463 rpi = ndlp->nlp_rpi;
4464 if (phba->sli_rev == LPFC_SLI_REV4)
4465 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
086a345f 4466
6d368e53 4467 lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
ed957684 4468 mbox->vport = vport;
086a345f
JS		 4469 if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
4470 mbox->context1 = ndlp;
4471 mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
4472 } else {
4473 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4474 }
4475
0b727fea 4476 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
dea3101e 4477 if (rc == MBX_NOT_FINISHED)
2e0fef85 4478 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 4479 }
dea3101e 4480 lpfc_no_rpi(phba, ndlp);
d7c47992 4481
4042629e
JS		 4482 if (phba->sli_rev != LPFC_SLI_REV4)
4483 ndlp->nlp_rpi = 0;
4484 ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
0c287589 4485 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
dea3101e
JB		 4486 return 1;
4487 }
4488 return 0;
4489}
4490
ecfd03c6
JS		 4491/**
4492 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
4493 * @phba: pointer to lpfc hba data structure.
4494 *
4495 * This routine is invoked to unregister all the currently registered RPIs
4496 * to the HBA.
4497 **/
4498void
4499lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
4500{
4501 struct lpfc_vport **vports;
4502 struct lpfc_nodelist *ndlp;
4503 struct Scsi_Host *shost;
4504 int i;
4505
4506 vports = lpfc_create_vport_work_array(phba);
63e801ce
JS		 4507 if (!vports) {
4508 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
4509 "2884 Vport array allocation failed \n");
4510 return;
4511 }
ecfd03c6
JS		 4512 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4513 shost = lpfc_shost_from_vport(vports[i]);
4514 spin_lock_irq(shost->host_lock);
4515 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
4042629e 4516 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
0c9ab6f5
JS		 4517 /* The mempool_alloc might sleep */
4518 spin_unlock_irq(shost->host_lock);
ecfd03c6 4519 lpfc_unreg_rpi(vports[i], ndlp);
0c9ab6f5
JS		 4520 spin_lock_irq(shost->host_lock);
4521 }
ecfd03c6
JS		 4522 }
4523 spin_unlock_irq(shost->host_lock);
4524 }
4525 lpfc_destroy_vport_work_array(phba, vports);
4526}
4527
92d7f7b0
JS		 4528void
4529lpfc_unreg_all_rpis(struct lpfc_vport *vport)
4530{
4531 struct lpfc_hba *phba = vport->phba;
4532 LPFC_MBOXQ_t *mbox;
4533 int rc;
4534
5af5eee7
JS		 4535 if (phba->sli_rev == LPFC_SLI_REV4) {
4536 lpfc_sli4_unreg_all_rpis(vport);
4537 return;
4538 }
4539
92d7f7b0
JS		 4540 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4541 if (mbox) {
6d368e53
JS		 4542 lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
4543 mbox);
92d7f7b0
JS		 4544 mbox->vport = vport;
4545 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
09372820
JS		 4546 mbox->context1 = NULL;
4547 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
a257bf90 4548 if (rc != MBX_TIMEOUT)
92d7f7b0 4549 mempool_free(mbox, phba->mbox_mem_pool);
a257bf90
JS		 4550
4551 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
4552 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4553 "1836 Could not issue "
4554 "unreg_login(all_rpis) status %d\n", rc);
92d7f7b0
JS		 4555 }
4556}
4557
4558void
4559lpfc_unreg_default_rpis(struct lpfc_vport *vport)
4560{
4561 struct lpfc_hba *phba = vport->phba;
4562 LPFC_MBOXQ_t *mbox;
4563 int rc;
4564
4565 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4566 if (mbox) {
6d368e53
JS		 4567 lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
4568 mbox);
92d7f7b0
JS		 4569 mbox->vport = vport;
4570 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
09372820
JS		 4571 mbox->context1 = NULL;
4572 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
a257bf90
JS		 4573 if (rc != MBX_TIMEOUT)
4574 mempool_free(mbox, phba->mbox_mem_pool);
4575
4576 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
e8b62011
JS		 4577 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
4578 "1815 Could not issue "
a257bf90
JS		 4579 "unreg_did (default rpis) status %d\n",
4580 rc);
92d7f7b0
JS		 4581 }
4582}
4583
dea3101e
JB		 4584/*
4585 * Free resources associated with LPFC_NODELIST entry
4586 * so it can be freed.
4587 */
4588static int
2e0fef85 4589lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 4590{
2e0fef85
JS		 4591 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4592 struct lpfc_hba *phba = vport->phba;
4593 LPFC_MBOXQ_t *mb, *nextmb;
dea3101e 4594 struct lpfc_dmabuf *mp;
dea3101e
JB		 4595
4596 /* Cleanup node for NPort <nlp_DID> */
e8b62011
JS		 4597 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4598 "0900 Cleanup node for NPort x%x "
4599 "Data: x%x x%x x%x\n",
4600 ndlp->nlp_DID, ndlp->nlp_flag,
4601 ndlp->nlp_state, ndlp->nlp_rpi);
e47c9093
JS		 4602 if (NLP_CHK_FREE_REQ(ndlp)) {
4603 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4604 "0280 lpfc_cleanup_node: ndlp:x%p "
4605 "usgmap:x%x refcnt:%d\n",
4606 (void *)ndlp, ndlp->nlp_usg_map,
4607 atomic_read(&ndlp->kref.refcount));
4608 lpfc_dequeue_node(vport, ndlp);
4609 } else {
4610 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
4611 "0281 lpfc_cleanup_node: ndlp:x%p "
4612 "usgmap:x%x refcnt:%d\n",
4613 (void *)ndlp, ndlp->nlp_usg_map,
4614 atomic_read(&ndlp->kref.refcount));
4615 lpfc_disable_node(vport, ndlp);
4616 }
dea3101e 4617
086a345f
JS		 4618
4619 /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
4620
dea3101e
JB		 4621 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
4622 if ((mb = phba->sli.mbox_active)) {
04c68496 4623 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
086a345f 4624 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
dea3101e
JB		 4625 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
4626 mb->context2 = NULL;
4627 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4628 }
4629 }
33ccf8d1 4630
2e0fef85 4631 spin_lock_irq(&phba->hbalock);
5ac6b303
JS		 4632 /* Cleanup REG_LOGIN completions which are not yet processed */
4633 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
4634 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
086a345f 4635 (mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
5ac6b303
JS		 4636 (ndlp != (struct lpfc_nodelist *) mb->context2))
4637 continue;
4638
4639 mb->context2 = NULL;
4640 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4641 }
4642
dea3101e 4643 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
04c68496 4644 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
086a345f 4645 !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
92d7f7b0 4646 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
dea3101e
JB		 4647 mp = (struct lpfc_dmabuf *) (mb->context1);
4648 if (mp) {
2e0fef85 4649 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e
JB		 4650 kfree(mp);
4651 }
4652 list_del(&mb->list);
4653 mempool_free(mb, phba->mbox_mem_pool);
e47c9093
JS		 4654 /* We shall not invoke the lpfc_nlp_put to decrement
4655 * the ndlp reference count as we are in the process
4656 * of lpfc_nlp_release.
4657 */
dea3101e
JB		 4658 }
4659 }
2e0fef85 4660 spin_unlock_irq(&phba->hbalock);
dea3101e 4661
e47c9093
JS		 4662 lpfc_els_abort(phba, ndlp);
4663
2e0fef85 4664 spin_lock_irq(shost->host_lock);
c01f3208 4665 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
2e0fef85 4666 spin_unlock_irq(shost->host_lock);
dea3101e 4667
5024ab17 4668 ndlp->nlp_last_elscmd = 0;
dea3101e
JB		 4669 del_timer_sync(&ndlp->nlp_delayfunc);
4670
0d2b6b83
JS		 4671 list_del_init(&ndlp->els_retry_evt.evt_listp);
4672 list_del_init(&ndlp->dev_loss_evt.evt_listp);
1151e3ec 4673 lpfc_cleanup_vports_rrqs(vport, ndlp);
2e0fef85 4674 lpfc_unreg_rpi(vport, ndlp);
dea3101e 4675
2fe165b6 4676 return 0;
dea3101e
JB		 4677}
4678
4679/*
4680 * Check to see if we can free the nlp back to the freelist.
4681 * If we are in the middle of using the nlp in the discovery state
4682 * machine, defer the free till we reach the end of the state machine.
4683 */
329f9bc7 4684static void
2e0fef85 4685lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 4686{
a8adb832 4687 struct lpfc_hba *phba = vport->phba;
1dcb58e5 4688 struct lpfc_rport_data *rdata;
a8adb832
JS		 4689 LPFC_MBOXQ_t *mbox;
4690 int rc;
dea3101e 4691
0d2b6b83 4692 lpfc_cancel_retry_delay_tmo(vport, ndlp);
21e9a0a5 4693 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
4042629e
JS		 4694 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
4695 !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
a8adb832
JS		 4696 /* For this case we need to cleanup the default rpi
4697 * allocated by the firmware.
4698 */
4699 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
4700 != NULL) {
21e9a0a5 4701 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
4042629e 4702 (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi);
a8adb832
JS		 4703 if (rc) {
4704 mempool_free(mbox, phba->mbox_mem_pool);
4705 }
4706 else {
4707 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
4708 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
4709 mbox->vport = vport;
086a345f 4710 mbox->context2 = ndlp;
a8adb832
JS		 4711 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4712 if (rc == MBX_NOT_FINISHED) {
4713 mempool_free(mbox, phba->mbox_mem_pool);
4714 }
4715 }
4716 }
4717 }
2e0fef85 4718 lpfc_cleanup_node(vport, ndlp);
1dcb58e5 4719
2e0fef85 4720 /*
92d7f7b0
JS		 4721 * We can get here with a non-NULL ndlp->rport because when we
4722 * unregister a rport we don't break the rport/node linkage. So if we
4723 * do, make sure we don't leaving any dangling pointers behind.
2e0fef85 4724 */
92d7f7b0 4725 if (ndlp->rport) {
329f9bc7
JS		 4726 rdata = ndlp->rport->dd_data;
4727 rdata->pnode = NULL;
4728 ndlp->rport = NULL;
dea3101e 4729 }
dea3101e
JB		 4730}
4731
4732static int
2e0fef85
JS		 4733lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4734 uint32_t did)
dea3101e 4735{
2e0fef85 4736 D_ID mydid, ndlpdid, matchdid;
dea3101e
JB		 4737
4738 if (did == Bcast_DID)
2fe165b6 4739 return 0;
dea3101e 4740
dea3101e
JB		 4741 /* First check for Direct match */
4742 if (ndlp->nlp_DID == did)
2fe165b6 4743 return 1;
dea3101e
JB		 4744
4745 /* Next check for area/domain identically equals 0 match */
2e0fef85 4746 mydid.un.word = vport->fc_myDID;
dea3101e 4747 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2fe165b6 4748 return 0;
dea3101e
JB		 4749 }
4750
4751 matchdid.un.word = did;
4752 ndlpdid.un.word = ndlp->nlp_DID;
4753 if (matchdid.un.b.id == ndlpdid.un.b.id) {
4754 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
4755 (mydid.un.b.area == matchdid.un.b.area)) {
4756 if ((ndlpdid.un.b.domain == 0) &&
4757 (ndlpdid.un.b.area == 0)) {
4758 if (ndlpdid.un.b.id)
2fe165b6 4759 return 1;
dea3101e 4760 }
2fe165b6 4761 return 0;
dea3101e
JB		 4762 }
4763
4764 matchdid.un.word = ndlp->nlp_DID;
4765 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
4766 (mydid.un.b.area == ndlpdid.un.b.area)) {
4767 if ((matchdid.un.b.domain == 0) &&
4768 (matchdid.un.b.area == 0)) {
4769 if (matchdid.un.b.id)
2fe165b6 4770 return 1;
dea3101e
JB		 4771 }
4772 }
4773 }
2fe165b6 4774 return 0;
dea3101e
JB		 4775}
4776
685f0bf7 4777/* Search for a nodelist entry */
2e0fef85
JS		 4778static struct lpfc_nodelist *
4779__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
dea3101e 4780{
2fb9bd8b 4781 struct lpfc_nodelist *ndlp;
dea3101e
JB		 4782 uint32_t data1;
4783
2e0fef85
JS		 4784 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4785 if (lpfc_matchdid(vport, ndlp, did)) {
685f0bf7
JS		 4786 data1 = (((uint32_t) ndlp->nlp_state << 24) |
4787 ((uint32_t) ndlp->nlp_xri << 16) |
4788 ((uint32_t) ndlp->nlp_type << 8) |
4789 ((uint32_t) ndlp->nlp_rpi & 0xff));
e8b62011
JS		 4790 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4791 "0929 FIND node DID "
4792 "Data: x%p x%x x%x x%x\n",
4793 ndlp, ndlp->nlp_DID,
4794 ndlp->nlp_flag, data1);
685f0bf7 4795 return ndlp;
dea3101e
JB		 4796 }
4797 }
66a9ed66 4798
dea3101e 4799 /* FIND node did <did> NOT FOUND */
e8b62011
JS		 4800 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4801 "0932 FIND node did x%x NOT FOUND.\n", did);
dea3101e
JB		 4802 return NULL;
4803}
4804
4805struct lpfc_nodelist *
2e0fef85
JS		 4806lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
4807{
4808 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4809 struct lpfc_nodelist *ndlp;
fedd3b7b 4810 unsigned long iflags;
2e0fef85 4811
fedd3b7b 4812 spin_lock_irqsave(shost->host_lock, iflags);
2e0fef85 4813 ndlp = __lpfc_findnode_did(vport, did);
fedd3b7b 4814 spin_unlock_irqrestore(shost->host_lock, iflags);
2e0fef85
JS		 4815 return ndlp;
4816}
4817
4818struct lpfc_nodelist *
4819lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
dea3101e 4820{
2e0fef85 4821 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 4822 struct lpfc_nodelist *ndlp;
dea3101e 4823
2e0fef85 4824 ndlp = lpfc_findnode_did(vport, did);
c9f8735b 4825 if (!ndlp) {
2e0fef85
JS		 4826 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
4827 lpfc_rscn_payload_check(vport, did) == 0)
dea3101e
JB		 4828 return NULL;
4829 ndlp = (struct lpfc_nodelist *)
2e0fef85 4830 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
dea3101e
JB		 4831 if (!ndlp)
4832 return NULL;
2e0fef85
JS		 4833 lpfc_nlp_init(vport, ndlp, did);
4834 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4835 spin_lock_irq(shost->host_lock);
dea3101e 4836 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 4837 spin_unlock_irq(shost->host_lock);
dea3101e 4838 return ndlp;
e47c9093
JS		 4839 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4840 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
4841 if (!ndlp)
4842 return NULL;
4843 spin_lock_irq(shost->host_lock);
4844 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4845 spin_unlock_irq(shost->host_lock);
4846 return ndlp;
dea3101e 4847 }
e47c9093 4848
58da1ffb
JS		 4849 if ((vport->fc_flag & FC_RSCN_MODE) &&
4850 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
2e0fef85 4851 if (lpfc_rscn_payload_check(vport, did)) {
25985edc 4852 /* If we've already received a PLOGI from this NPort
87af33fe
JS		 4853 * we don't need to try to discover it again.
4854 */
4855 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
4856 return NULL;
4857
c9f8735b
JW		 4858 /* Since this node is marked for discovery,
4859 * delay timeout is not needed.
4860 */
0d2b6b83 4861 lpfc_cancel_retry_delay_tmo(vport, ndlp);
a257bf90
JS		 4862 spin_lock_irq(shost->host_lock);
4863 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4864 spin_unlock_irq(shost->host_lock);
071fbd3d 4865 } else
dea3101e 4866 ndlp = NULL;
2fe165b6 4867 } else {
25985edc 4868 /* If we've already received a PLOGI from this NPort,
87af33fe
JS		 4869 * or we are already in the process of discovery on it,
4870 * we don't need to try to discover it again.
4871 */
685f0bf7 4872 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
87af33fe
JS		 4873 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
4874 ndlp->nlp_flag & NLP_RCV_PLOGI)
dea3101e 4875 return NULL;
2e0fef85
JS		 4876 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4877 spin_lock_irq(shost->host_lock);
dea3101e 4878 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 4879 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 4880 }
4881 return ndlp;
4882}
4883
4884/* Build a list of nodes to discover based on the loopmap */
4885void
2e0fef85 4886lpfc_disc_list_loopmap(struct lpfc_vport *vport)
dea3101e 4887{
2e0fef85 4888 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 4889 int j;
4890 uint32_t alpa, index;
4891
2e0fef85 4892 if (!lpfc_is_link_up(phba))
dea3101e 4893 return;
2e0fef85 4894
76a95d75 4895 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
dea3101e 4896 return;
dea3101e
JB		 4897
4898 /* Check for loop map present or not */
4899 if (phba->alpa_map[0]) {
4900 for (j = 1; j <= phba->alpa_map[0]; j++) {
4901 alpa = phba->alpa_map[j];
2e0fef85 4902 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
dea3101e 4903 continue;
2e0fef85 4904 lpfc_setup_disc_node(vport, alpa);
dea3101e
JB		 4905 }
4906 } else {
4907 /* No alpamap, so try all alpa's */
4908 for (j = 0; j < FC_MAXLOOP; j++) {
4909 /* If cfg_scan_down is set, start from highest
4910 * ALPA (0xef) to lowest (0x1).
4911 */
3de2a653 4912 if (vport->cfg_scan_down)
dea3101e
JB		 4913 index = j;
4914 else
4915 index = FC_MAXLOOP - j - 1;
4916 alpa = lpfcAlpaArray[index];
2e0fef85 4917 if ((vport->fc_myDID & 0xff) == alpa)
dea3101e 4918 continue;
2e0fef85 4919 lpfc_setup_disc_node(vport, alpa);
dea3101e
JB		 4920 }
4921 }
4922 return;
4923}
4924
dea3101e 4925void
2e0fef85 4926lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
dea3101e 4927{
dea3101e 4928 LPFC_MBOXQ_t *mbox;
2e0fef85
JS		 4929 struct lpfc_sli *psli = &phba->sli;
4930 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
4931 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
4932 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
4933 int rc;
4934
92d7f7b0
JS		 4935 /*
4936 * if it's not a physical port or if we already send
4937 * clear_la then don't send it.
4938 */
4939 if ((phba->link_state >= LPFC_CLEAR_LA) ||
da0436e9
JS		 4940 (vport->port_type != LPFC_PHYSICAL_PORT) ||
4941 (phba->sli_rev == LPFC_SLI_REV4))
92d7f7b0
JS		 4942 return;
4943
2e0fef85
JS		 4944 /* Link up discovery */
4945 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
4946 phba->link_state = LPFC_CLEAR_LA;
4947 lpfc_clear_la(phba, mbox);
4948 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
4949 mbox->vport = vport;
0b727fea 4950 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2e0fef85
JS		 4951 if (rc == MBX_NOT_FINISHED) {
4952 mempool_free(mbox, phba->mbox_mem_pool);
4953 lpfc_disc_flush_list(vport);
4954 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4955 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4956 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
92d7f7b0
JS		 4957 phba->link_state = LPFC_HBA_ERROR;
4958 }
4959 }
4960}
4961
4962/* Reg_vpi to tell firmware to resume normal operations */
4963void
4964lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
4965{
4966 LPFC_MBOXQ_t *regvpimbox;
4967
4968 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4969 if (regvpimbox) {
da0436e9 4970 lpfc_reg_vpi(vport, regvpimbox);
92d7f7b0
JS		 4971 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
4972 regvpimbox->vport = vport;
0b727fea 4973 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
92d7f7b0
JS		 4974 == MBX_NOT_FINISHED) {
4975 mempool_free(regvpimbox, phba->mbox_mem_pool);
2e0fef85
JS		 4976 }
4977 }
4978}
4979
4980/* Start Link up / RSCN discovery on NPR nodes */
4981void
4982lpfc_disc_start(struct lpfc_vport *vport)
4983{
4984 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4985 struct lpfc_hba *phba = vport->phba;
685f0bf7 4986 uint32_t num_sent;
dea3101e 4987 uint32_t clear_la_pending;
685f0bf7 4988 int did_changed;
dea3101e 4989
e74c03c8
JS		 4990 if (!lpfc_is_link_up(phba)) {
4991 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
4992 "3315 Link is not up %x\n",
4993 phba->link_state);
dea3101e 4994 return;
e74c03c8 4995 }
2e0fef85
JS		 4996
4997 if (phba->link_state == LPFC_CLEAR_LA)
dea3101e
JB		 4998 clear_la_pending = 1;
4999 else
5000 clear_la_pending = 0;
5001
2e0fef85
JS		 5002 if (vport->port_state < LPFC_VPORT_READY)
5003 vport->port_state = LPFC_DISC_AUTH;
dea3101e 5004
2e0fef85
JS		 5005 lpfc_set_disctmo(vport);
5006
5007 if (vport->fc_prevDID == vport->fc_myDID)
dea3101e 5008 did_changed = 0;
2e0fef85 5009 else
dea3101e 5010 did_changed = 1;
2e0fef85
JS		 5011
5012 vport->fc_prevDID = vport->fc_myDID;
5013 vport->num_disc_nodes = 0;
dea3101e
JB		 5014
5015 /* Start Discovery state <hba_state> */
e8b62011
JS		 5016 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5017 "0202 Start Discovery hba state x%x "
5018 "Data: x%x x%x x%x\n",
5019 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
5020 vport->fc_adisc_cnt);
dea3101e
JB		 5021
5022 /* First do ADISCs - if any */
2e0fef85 5023 num_sent = lpfc_els_disc_adisc(vport);
dea3101e
JB		 5024
5025 if (num_sent)
5026 return;
5027
6fa139f3 5028 /* Register the VPI for SLI3, NPIV only. */
92d7f7b0 5029 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1b32f6aa 5030 !(vport->fc_flag & FC_PT2PT) &&
da0436e9
JS		 5031 !(vport->fc_flag & FC_RSCN_MODE) &&
5032 (phba->sli_rev < LPFC_SLI_REV4)) {
6fa139f3
JS		 5033 if (vport->port_type == LPFC_PHYSICAL_PORT)
5034 lpfc_issue_clear_la(phba, vport);
92d7f7b0
JS		 5035 lpfc_issue_reg_vpi(phba, vport);
5036 return;
5037 }
5038
5039 /*
5040 * For SLI2, we need to set port_state to READY and continue
5041 * discovery.
5042 */
2e0fef85 5043 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
dea3101e 5044 /* If we get here, there is nothing to ADISC */
92d7f7b0 5045 if (vport->port_type == LPFC_PHYSICAL_PORT)
2e0fef85 5046 lpfc_issue_clear_la(phba, vport);
2e0fef85 5047
92d7f7b0 5048 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2e0fef85
JS		 5049 vport->num_disc_nodes = 0;
5050 /* go thru NPR nodes and issue ELS PLOGIs */
5051 if (vport->fc_npr_cnt)
5052 lpfc_els_disc_plogi(vport);
5053
5054 if (!vport->num_disc_nodes) {
5055 spin_lock_irq(shost->host_lock);
5056 vport->fc_flag &= ~FC_NDISC_ACTIVE;
5057 spin_unlock_irq(shost->host_lock);
92d7f7b0 5058 lpfc_can_disctmo(vport);
dea3101e
JB		 5059 }
5060 }
92d7f7b0 5061 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 5062 } else {
5063 /* Next do PLOGIs - if any */
2e0fef85 5064 num_sent = lpfc_els_disc_plogi(vport);
dea3101e
JB		 5065
5066 if (num_sent)
5067 return;
5068
2e0fef85 5069 if (vport->fc_flag & FC_RSCN_MODE) {
dea3101e
JB		 5070 /* Check to see if more RSCNs came in while we
5071 * were processing this one.
5072 */
2e0fef85
JS		 5073 if ((vport->fc_rscn_id_cnt == 0) &&
5074 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
5075 spin_lock_irq(shost->host_lock);
5076 vport->fc_flag &= ~FC_RSCN_MODE;
5077 spin_unlock_irq(shost->host_lock);
92d7f7b0 5078 lpfc_can_disctmo(vport);
2fe165b6 5079 } else
2e0fef85 5080 lpfc_els_handle_rscn(vport);
dea3101e
JB		 5081 }
5082 }
5083 return;
5084}
5085
5086/*
5087 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
5088 * ring the match the sppecified nodelist.
5089 */
5090static void
2e0fef85 5091lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 5092{
2534ba75 5093 LIST_HEAD(completions);
dea3101e
JB		 5094 struct lpfc_sli *psli;
5095 IOCB_t *icmd;
5096 struct lpfc_iocbq *iocb, *next_iocb;
5097 struct lpfc_sli_ring *pring;
dea3101e
JB		 5098
5099 psli = &phba->sli;
5100 pring = &psli->ring[LPFC_ELS_RING];
5101
5102 /* Error matching iocb on txq or txcmplq
5103 * First check the txq.
5104 */
2e0fef85 5105 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 5106 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
5107 if (iocb->context1 != ndlp) {
5108 continue;
5109 }
5110 icmd = &iocb->iocb;
5111 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
5112 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
5113
2534ba75 5114 list_move_tail(&iocb->list, &completions);
dea3101e
JB		 5115 }
5116 }
5117
5118 /* Next check the txcmplq */
5119 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
5120 if (iocb->context1 != ndlp) {
5121 continue;
5122 }
5123 icmd = &iocb->iocb;
2e0fef85
JS		 5124 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
5125 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
2534ba75
JS		 5126 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
5127 }
5128 }
2e0fef85 5129 spin_unlock_irq(&phba->hbalock);
dea3101e 5130
a257bf90
JS		 5131 /* Cancel all the IOCBs from the completions list */
5132 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
5133 IOERR_SLI_ABORTED);
dea3101e
JB		 5134}
5135
a6ababd2 5136static void
2e0fef85 5137lpfc_disc_flush_list(struct lpfc_vport *vport)
dea3101e
JB		 5138{
5139 struct lpfc_nodelist *ndlp, *next_ndlp;
2e0fef85 5140 struct lpfc_hba *phba = vport->phba;
dea3101e 5141
2e0fef85
JS		 5142 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
5143 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7 5144 nlp_listp) {
e47c9093
JS		 5145 if (!NLP_CHK_NODE_ACT(ndlp))
5146 continue;
685f0bf7
JS		 5147 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
5148 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
5149 lpfc_free_tx(phba, ndlp);
685f0bf7 5150 }
dea3101e
JB		 5151 }
5152 }
dea3101e
JB		 5153}
5154
92d7f7b0
JS		 5155void
5156lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
5157{
5158 lpfc_els_flush_rscn(vport);
5159 lpfc_els_flush_cmd(vport);
5160 lpfc_disc_flush_list(vport);
5161}
5162
dea3101e
JB		 5163/*****************************************************************************/
5164/*
5165 * NAME: lpfc_disc_timeout
5166 *
5167 * FUNCTION: Fibre Channel driver discovery timeout routine.
5168 *
5169 * EXECUTION ENVIRONMENT: interrupt only
5170 *
5171 * CALLED FROM:
5172 * Timer function
5173 *
5174 * RETURNS:
5175 * none
5176 */
5177/*****************************************************************************/
5178void
5179lpfc_disc_timeout(unsigned long ptr)
5180{
2e0fef85
JS		 5181 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
5182 struct lpfc_hba *phba = vport->phba;
5e9d9b82 5183 uint32_t tmo_posted;
dea3101e
JB		 5184 unsigned long flags = 0;
5185
5186 if (unlikely(!phba))
5187 return;
5188
5e9d9b82
JS		 5189 spin_lock_irqsave(&vport->work_port_lock, flags);
5190 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
5191 if (!tmo_posted)
2e0fef85 5192 vport->work_port_events |= WORKER_DISC_TMO;
5e9d9b82 5193 spin_unlock_irqrestore(&vport->work_port_lock, flags);
2e0fef85 5194
5e9d9b82
JS		 5195 if (!tmo_posted)
5196 lpfc_worker_wake_up(phba);
dea3101e
JB		 5197 return;
5198}
5199
5200static void
2e0fef85 5201lpfc_disc_timeout_handler(struct lpfc_vport *vport)
dea3101e 5202{
2e0fef85
JS		 5203 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5204 struct lpfc_hba *phba = vport->phba;
5205 struct lpfc_sli *psli = &phba->sli;
c9f8735b 5206 struct lpfc_nodelist *ndlp, *next_ndlp;
92d7f7b0 5207 LPFC_MBOXQ_t *initlinkmbox;
dea3101e
JB		 5208 int rc, clrlaerr = 0;
5209
2e0fef85 5210 if (!(vport->fc_flag & FC_DISC_TMO))
dea3101e
JB		 5211 return;
5212
2e0fef85
JS		 5213 spin_lock_irq(shost->host_lock);
5214 vport->fc_flag &= ~FC_DISC_TMO;
5215 spin_unlock_irq(shost->host_lock);
dea3101e 5216
858c9f6c
JS		 5217 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
5218 "disc timeout: state:x%x rtry:x%x flg:x%x",
5219 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
5220
2e0fef85 5221 switch (vport->port_state) {
dea3101e
JB		 5222
5223 case LPFC_LOCAL_CFG_LINK:
2e0fef85
JS		 5224 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
5225 * FAN
5226 */
5227 /* FAN timeout */
e8b62011
JS		 5228 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
5229 "0221 FAN timeout\n");
c9f8735b 5230 /* Start discovery by sending FLOGI, clean up old rpis */
2e0fef85 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_NPR_NODE)
5236 continue;
c9f8735b
JW		 5237 if (ndlp->nlp_type & NLP_FABRIC) {
5238 /* Clean up the ndlp on Fabric connections */
2e0fef85 5239 lpfc_drop_node(vport, ndlp);
87af33fe 5240
2fe165b6 5241 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
c9f8735b
JW		 5242 /* Fail outstanding IO now since device
5243 * is marked for PLOGI.
5244 */
2e0fef85 5245 lpfc_unreg_rpi(vport, ndlp);
c9f8735b
JW		 5246 }
5247 }
92d7f7b0 5248 if (vport->port_state != LPFC_FLOGI) {
76a95d75
JS		 5249 if (phba->sli_rev <= LPFC_SLI_REV3)
5250 lpfc_initial_flogi(vport);
5251 else
5252 lpfc_issue_init_vfi(vport);
0ff10d46 5253 return;
92d7f7b0 5254 }
dea3101e
JB		 5255 break;
5256
92d7f7b0 5257 case LPFC_FDISC:
dea3101e 5258 case LPFC_FLOGI:
2e0fef85 5259 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
dea3101e 5260 /* Initial FLOGI timeout */
e8b62011
JS		 5261 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5262 "0222 Initial %s timeout\n",
87af33fe 5263 vport->vpi ? "FDISC" : "FLOGI");
dea3101e
JB		 5264
5265 /* Assume no Fabric and go on with discovery.
5266 * Check for outstanding ELS FLOGI to abort.
5267 */
5268
5269 /* FLOGI failed, so just use loop map to make discovery list */
2e0fef85 5270 lpfc_disc_list_loopmap(vport);
dea3101e
JB		 5271
5272 /* Start discovery */
2e0fef85 5273 lpfc_disc_start(vport);
dea3101e
JB		 5274 break;
5275
5276 case LPFC_FABRIC_CFG_LINK:
5277 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
5278 NameServer login */
e8b62011
JS		 5279 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5280 "0223 Timeout while waiting for "
5281 "NameServer login\n");
dea3101e 5282 /* Next look for NameServer ndlp */
2e0fef85 5283 ndlp = lpfc_findnode_did(vport, NameServer_DID);
e47c9093 5284 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
87af33fe
JS		 5285 lpfc_els_abort(phba, ndlp);
5286
5287 /* ReStart discovery */
5288 goto restart_disc;
dea3101e
JB		 5289
5290 case LPFC_NS_QRY:
5291 /* Check for wait for NameServer Rsp timeout */
e8b62011
JS		 5292 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5293 "0224 NameServer Query timeout "
5294 "Data: x%x x%x\n",
5295 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e 5296
92d7f7b0
JS		 5297 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
5298 /* Try it one more time */
5299 vport->fc_ns_retry++;
5300 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
5301 vport->fc_ns_retry, 0);
5302 if (rc == 0)
5303 break;
dea3101e 5304 }
92d7f7b0 5305 vport->fc_ns_retry = 0;
dea3101e 5306
87af33fe 5307restart_disc:
92d7f7b0
JS		 5308 /*
5309 * Discovery is over.
5310 * set port_state to PORT_READY if SLI2.
5311 * cmpl_reg_vpi will set port_state to READY for SLI3.
5312 */
3772a991
JS		 5313 if (phba->sli_rev < LPFC_SLI_REV4) {
5314 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5315 lpfc_issue_reg_vpi(phba, vport);
6d368e53 5316 else {
3772a991
JS		 5317 lpfc_issue_clear_la(phba, vport);
5318 vport->port_state = LPFC_VPORT_READY;
5319 }
dea3101e
JB		 5320 }
5321
5322 /* Setup and issue mailbox INITIALIZE LINK command */
5323 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5324 if (!initlinkmbox) {
e8b62011
JS		 5325 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5326 "0206 Device Discovery "
5327 "completion error\n");
2e0fef85 5328 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 5329 break;
5330 }
5331
5332 lpfc_linkdown(phba);
5333 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
5334 phba->cfg_link_speed);
04c68496 5335 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
ed957684 5336 initlinkmbox->vport = vport;
92d7f7b0 5337 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 5338 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
5b8bd0c9 5339 lpfc_set_loopback_flag(phba);
dea3101e
JB		 5340 if (rc == MBX_NOT_FINISHED)
5341 mempool_free(initlinkmbox, phba->mbox_mem_pool);
5342
5343 break;
5344
5345 case LPFC_DISC_AUTH:
5346 /* Node Authentication timeout */
e8b62011
JS		 5347 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5348 "0227 Node Authentication timeout\n");
2e0fef85
JS		 5349 lpfc_disc_flush_list(vport);
5350
92d7f7b0
JS		 5351 /*
5352 * set port_state to PORT_READY if SLI2.
5353 * cmpl_reg_vpi will set port_state to READY for SLI3.
5354 */
3772a991
JS		 5355 if (phba->sli_rev < LPFC_SLI_REV4) {
5356 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
5357 lpfc_issue_reg_vpi(phba, vport);
5358 else { /* NPIV Not enabled */
5359 lpfc_issue_clear_la(phba, vport);
5360 vport->port_state = LPFC_VPORT_READY;
5361 }
dea3101e
JB		 5362 }
5363 break;
5364
2e0fef85
JS		 5365 case LPFC_VPORT_READY:
5366 if (vport->fc_flag & FC_RSCN_MODE) {
e8b62011
JS		 5367 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5368 "0231 RSCN timeout Data: x%x "
5369 "x%x\n",
5370 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e
JB		 5371
5372 /* Cleanup any outstanding ELS commands */
2e0fef85 5373 lpfc_els_flush_cmd(vport);
dea3101e 5374
2e0fef85
JS		 5375 lpfc_els_flush_rscn(vport);
5376 lpfc_disc_flush_list(vport);
dea3101e
JB		 5377 }
5378 break;
2e0fef85 5379
92d7f7b0 5380 default:
e8b62011 5381 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
d7c255b2 5382 "0273 Unexpected discovery timeout, "
e8b62011 5383 "vport State x%x\n", vport->port_state);
2e0fef85
JS		 5384 break;
5385 }
5386
5387 switch (phba->link_state) {
5388 case LPFC_CLEAR_LA:
92d7f7b0 5389 /* CLEAR LA timeout */
e8b62011
JS		 5390 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5391 "0228 CLEAR LA timeout\n");
2e0fef85
JS		 5392 clrlaerr = 1;
5393 break;
5394
09372820
JS		 5395 case LPFC_LINK_UP:
5396 lpfc_issue_clear_la(phba, vport);
5397 /* Drop thru */
2e0fef85
JS		 5398 case LPFC_LINK_UNKNOWN:
5399 case LPFC_WARM_START:
5400 case LPFC_INIT_START:
5401 case LPFC_INIT_MBX_CMDS:
5402 case LPFC_LINK_DOWN:
2e0fef85 5403 case LPFC_HBA_ERROR:
e8b62011
JS		 5404 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
5405 "0230 Unexpected timeout, hba link "
5406 "state x%x\n", phba->link_state);
2e0fef85
JS		 5407 clrlaerr = 1;
5408 break;
92d7f7b0
JS		 5409
5410 case LPFC_HBA_READY:
5411 break;
dea3101e
JB		 5412 }
5413
5414 if (clrlaerr) {
2e0fef85 5415 lpfc_disc_flush_list(vport);
a4bc3379 5416 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e
JB		 5417 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
5418 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2e0fef85 5419 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 5420 }
5421
5422 return;
5423}
5424
dea3101e
JB		 5425/*
5426 * This routine handles processing a NameServer REG_LOGIN mailbox
5427 * command upon completion. It is setup in the LPFC_MBOXQ
5428 * as the completion routine when the command is
5429 * handed off to the SLI layer.
5430 */
5431void
2e0fef85 5432lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 5433{
04c68496 5434 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85
JS		 5435 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
5436 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
5437 struct lpfc_vport *vport = pmb->vport;
dea3101e
JB		 5438
5439 pmb->context1 = NULL;
d439d286 5440 pmb->context2 = NULL;
dea3101e 5441
6d368e53
JS		 5442 if (phba->sli_rev < LPFC_SLI_REV4)
5443 ndlp->nlp_rpi = mb->un.varWords[0];
4042629e 5444 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
dea3101e 5445 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 5446 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 5447
2e0fef85
JS		 5448 /*
5449 * Start issuing Fabric-Device Management Interface (FDMI) command to
5450 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
5451 * fdmi-on=2 (supporting RPA/hostnmae)
dea3101e 5452 */
2e0fef85 5453
3de2a653 5454 if (vport->cfg_fdmi_on == 1)
2e0fef85
JS		 5455 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
5456 else
256ec0d0
JS		 5457 mod_timer(&vport->fc_fdmitmo,
5458 jiffies + msecs_to_jiffies(1000 * 60));
dea3101e 5459
fa4066b6
JS		 5460 /* decrement the node reference count held for this callback
5461 * function.
5462 */
329f9bc7 5463 lpfc_nlp_put(ndlp);
dea3101e
JB		 5464 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5465 kfree(mp);
329f9bc7 5466 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 5467
5468 return;
5469}
5470
685f0bf7
JS		 5471static int
5472lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
5473{
5474 uint16_t *rpi = param;
5475
eff4a01b
JS		 5476 /* check for active node */
5477 if (!NLP_CHK_NODE_ACT(ndlp))
5478 return 0;
5479
685f0bf7
JS		 5480 return ndlp->nlp_rpi == *rpi;
5481}
5482
5483static int
5484lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
5485{
5486 return memcmp(&ndlp->nlp_portname, param,
5487 sizeof(ndlp->nlp_portname)) == 0;
5488}
5489
a6ababd2 5490static struct lpfc_nodelist *
2e0fef85 5491__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
dea3101e 5492{
21568f53 5493 struct lpfc_nodelist *ndlp;
dea3101e 5494
2e0fef85 5495 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
34f5ad8b
JS		 5496 if (filter(ndlp, param)) {
5497 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5498 "3185 FIND node filter %p DID "
5499 "Data: x%p x%x x%x\n",
5500 filter, ndlp, ndlp->nlp_DID,
5501 ndlp->nlp_flag);
685f0bf7 5502 return ndlp;
34f5ad8b 5503 }
685f0bf7 5504 }
34f5ad8b
JS		 5505 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
5506 "3186 FIND node filter %p NOT FOUND.\n", filter);
21568f53 5507 return NULL;
dea3101e
JB		 5508}
5509
685f0bf7
JS		 5510/*
5511 * This routine looks up the ndlp lists for the given RPI. If rpi found it
2e0fef85 5512 * returns the node list element pointer else return NULL.
685f0bf7
JS		 5513 */
5514struct lpfc_nodelist *
2e0fef85 5515__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
685f0bf7 5516{
2e0fef85 5517 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
685f0bf7
JS		 5518}
5519
488d1469 5520/*
685f0bf7 5521 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
2e0fef85 5522 * returns the node element list pointer else return NULL.
488d1469
JS		 5523 */
5524struct lpfc_nodelist *
2e0fef85 5525lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
488d1469 5526{
2e0fef85 5527 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
488d1469 5528 struct lpfc_nodelist *ndlp;
488d1469 5529
2e0fef85
JS		 5530 spin_lock_irq(shost->host_lock);
5531 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
5532 spin_unlock_irq(shost->host_lock);
858c9f6c 5533 return ndlp;
488d1469
JS		 5534}
5535
cb69f7de
JS		 5536/*
5537 * This routine looks up the ndlp lists for the given RPI. If the rpi
5538 * is found, the routine returns the node element list pointer else
5539 * return NULL.
5540 */
5541struct lpfc_nodelist *
5542lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
5543{
5544 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5545 struct lpfc_nodelist *ndlp;
5546
5547 spin_lock_irq(shost->host_lock);
5548 ndlp = __lpfc_findnode_rpi(vport, rpi);
5549 spin_unlock_irq(shost->host_lock);
5550 return ndlp;
5551}
5552
5553/**
5554 * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
5555 * @phba: pointer to lpfc hba data structure.
5556 * @vpi: the physical host virtual N_Port identifier.
5557 *
5558 * This routine finds a vport on a HBA (referred by @phba) through a
5559 * @vpi. The function walks the HBA's vport list and returns the address
5560 * of the vport with the matching @vpi.
5561 *
5562 * Return code
5563 * NULL - No vport with the matching @vpi found
5564 * Otherwise - Address to the vport with the matching @vpi.
5565 **/
5566struct lpfc_vport *
5567lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
5568{
5569 struct lpfc_vport *vport;
5570 unsigned long flags;
5571 int i = 0;
5572
5573 /* The physical ports are always vpi 0 - translate is unnecessary. */
5574 if (vpi > 0) {
5575 /*
5576 * Translate the physical vpi to the logical vpi. The
5577 * vport stores the logical vpi.
5578 */
5579 for (i = 0; i < phba->max_vpi; i++) {
5580 if (vpi == phba->vpi_ids[i])
5581 break;
5582 }
5583
5584 if (i >= phba->max_vpi) {
5585 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
5586 "2936 Could not find Vport mapped "
5587 "to vpi %d\n", vpi);
5588 return NULL;
5589 }
5590 }
5591
5592 spin_lock_irqsave(&phba->hbalock, flags);
5593 list_for_each_entry(vport, &phba->port_list, listentry) {
5594 if (vport->vpi == i) {
5595 spin_unlock_irqrestore(&phba->hbalock, flags);
5596 return vport;
5597 }
5598 }
5599 spin_unlock_irqrestore(&phba->hbalock, flags);
5600 return NULL;
5601}
5602
dea3101e 5603void
2e0fef85
JS		 5604lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
5605 uint32_t did)
dea3101e
JB		 5606{
5607 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
109f6ed0
JS		 5608
5609 lpfc_initialize_node(vport, ndlp, did);
685f0bf7 5610 INIT_LIST_HEAD(&ndlp->nlp_listp);
858c9f6c
JS		 5611
5612 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
5613 "node init: did:x%x",
5614 ndlp->nlp_DID, 0, 0);
5615
dea3101e
JB		 5616 return;
5617}
329f9bc7 5618
98c9ea5c
JS		 5619/* This routine releases all resources associated with a specifc NPort's ndlp
5620 * and mempool_free's the nodelist.
5621 */
311464ec 5622static void
329f9bc7
JS		 5623lpfc_nlp_release(struct kref *kref)
5624{
e47c9093
JS		 5625 struct lpfc_hba *phba;
5626 unsigned long flags;
329f9bc7
JS		 5627 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
5628 kref);
858c9f6c
JS		 5629
5630 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5631 "node release: did:x%x flg:x%x type:x%x",
5632 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
5633
e47c9093 5634 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
939723a4 5635 "0279 lpfc_nlp_release: ndlp:x%p did %x "
e47c9093 5636 "usgmap:x%x refcnt:%d\n",
939723a4 5637 (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map,
e47c9093
JS		 5638 atomic_read(&ndlp->kref.refcount));
5639
5640 /* remove ndlp from action. */
2e0fef85 5641 lpfc_nlp_remove(ndlp->vport, ndlp);
e47c9093
JS		 5642
5643 /* clear the ndlp active flag for all release cases */
a257bf90 5644 phba = ndlp->phba;
e47c9093
JS		 5645 spin_lock_irqsave(&phba->ndlp_lock, flags);
5646 NLP_CLR_NODE_ACT(ndlp);
5647 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4042629e
JS		 5648 if (phba->sli_rev == LPFC_SLI_REV4)
5649 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
e47c9093
JS		 5650
5651 /* free ndlp memory for final ndlp release */
ea2151b4
JS		 5652 if (NLP_CHK_FREE_REQ(ndlp)) {
5653 kfree(ndlp->lat_data);
a257bf90 5654 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
ea2151b4 5655 }
329f9bc7
JS		 5656}
5657
98c9ea5c
JS		 5658/* This routine bumps the reference count for a ndlp structure to ensure
5659 * that one discovery thread won't free a ndlp while another discovery thread
5660 * is using it.
5661 */
329f9bc7
JS		 5662struct lpfc_nodelist *
5663lpfc_nlp_get(struct lpfc_nodelist *ndlp)
5664{
e47c9093
JS		 5665 struct lpfc_hba *phba;
5666 unsigned long flags;
5667
98c9ea5c
JS		 5668 if (ndlp) {
5669 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5670 "node get: did:x%x flg:x%x refcnt:x%x",
5671 ndlp->nlp_DID, ndlp->nlp_flag,
5672 atomic_read(&ndlp->kref.refcount));
e47c9093
JS		 5673 /* The check of ndlp usage to prevent incrementing the
5674 * ndlp reference count that is in the process of being
5675 * released.
5676 */
a257bf90 5677 phba = ndlp->phba;
e47c9093
JS		 5678 spin_lock_irqsave(&phba->ndlp_lock, flags);
5679 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
5680 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5681 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5682 "0276 lpfc_nlp_get: ndlp:x%p "
5683 "usgmap:x%x refcnt:%d\n",
5684 (void *)ndlp, ndlp->nlp_usg_map,
5685 atomic_read(&ndlp->kref.refcount));
5686 return NULL;
5687 } else
5688 kref_get(&ndlp->kref);
5689 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
98c9ea5c 5690 }
329f9bc7
JS		 5691 return ndlp;
5692}
5693
98c9ea5c 5694/* This routine decrements the reference count for a ndlp structure. If the
e47c9093
JS		 5695 * count goes to 0, this indicates the the associated nodelist should be
5696 * freed. Returning 1 indicates the ndlp resource has been released; on the
5697 * other hand, returning 0 indicates the ndlp resource has not been released
5698 * yet.
98c9ea5c 5699 */
329f9bc7
JS		 5700int
5701lpfc_nlp_put(struct lpfc_nodelist *ndlp)
5702{
e47c9093
JS		 5703 struct lpfc_hba *phba;
5704 unsigned long flags;
5705
5706 if (!ndlp)
5707 return 1;
5708
5709 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5710 "node put: did:x%x flg:x%x refcnt:x%x",
5711 ndlp->nlp_DID, ndlp->nlp_flag,
5712 atomic_read(&ndlp->kref.refcount));
a257bf90 5713 phba = ndlp->phba;
e47c9093
JS		 5714 spin_lock_irqsave(&phba->ndlp_lock, flags);
5715 /* Check the ndlp memory free acknowledge flag to avoid the
5716 * possible race condition that kref_put got invoked again
5717 * after previous one has done ndlp memory free.
5718 */
5719 if (NLP_CHK_FREE_ACK(ndlp)) {
5720 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5721 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5722 "0274 lpfc_nlp_put: ndlp:x%p "
5723 "usgmap:x%x refcnt:%d\n",
5724 (void *)ndlp, ndlp->nlp_usg_map,
5725 atomic_read(&ndlp->kref.refcount));
5726 return 1;
5727 }
5728 /* Check the ndlp inactivate log flag to avoid the possible
5729 * race condition that kref_put got invoked again after ndlp
5730 * is already in inactivating state.
5731 */
5732 if (NLP_CHK_IACT_REQ(ndlp)) {
5733 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5734 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5735 "0275 lpfc_nlp_put: ndlp:x%p "
5736 "usgmap:x%x refcnt:%d\n",
5737 (void *)ndlp, ndlp->nlp_usg_map,
5738 atomic_read(&ndlp->kref.refcount));
5739 return 1;
98c9ea5c 5740 }
e47c9093
JS		 5741 /* For last put, mark the ndlp usage flags to make sure no
5742 * other kref_get and kref_put on the same ndlp shall get
5743 * in between the process when the final kref_put has been
5744 * invoked on this ndlp.
5745 */
5746 if (atomic_read(&ndlp->kref.refcount) == 1) {
5747 /* Indicate ndlp is put to inactive state. */
5748 NLP_SET_IACT_REQ(ndlp);
5749 /* Acknowledge ndlp memory free has been seen. */
5750 if (NLP_CHK_FREE_REQ(ndlp))
5751 NLP_SET_FREE_ACK(ndlp);
5752 }
5753 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5754 /* Note, the kref_put returns 1 when decrementing a reference
5755 * count that was 1, it invokes the release callback function,
5756 * but it still left the reference count as 1 (not actually
5757 * performs the last decrementation). Otherwise, it actually
5758 * decrements the reference count and returns 0.
5759 */
5760 return kref_put(&ndlp->kref, lpfc_nlp_release);
329f9bc7 5761}
98c9ea5c
JS		 5762
5763/* This routine free's the specified nodelist if it is not in use
e47c9093
JS		 5764 * by any other discovery thread. This routine returns 1 if the
5765 * ndlp has been freed. A return value of 0 indicates the ndlp is
5766 * not yet been released.
98c9ea5c
JS		 5767 */
5768int
5769lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
5770{
5771 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5772 "node not used: did:x%x flg:x%x refcnt:x%x",
5773 ndlp->nlp_DID, ndlp->nlp_flag,
5774 atomic_read(&ndlp->kref.refcount));
e47c9093
JS		 5775 if (atomic_read(&ndlp->kref.refcount) == 1)
5776 if (lpfc_nlp_put(ndlp))
5777 return 1;
98c9ea5c
JS		 5778 return 0;
5779}
6fb120a7
JS		 5780
5781/**
5782 * lpfc_fcf_inuse - Check if FCF can be unregistered.
5783 * @phba: Pointer to hba context object.
5784 *
5785 * This function iterate through all FC nodes associated
5786 * will all vports to check if there is any node with
5787 * fc_rports associated with it. If there is an fc_rport
5788 * associated with the node, then the node is either in
5789 * discovered state or its devloss_timer is pending.
5790 */
5791static int
5792lpfc_fcf_inuse(struct lpfc_hba *phba)
5793{
5794 struct lpfc_vport **vports;
5795 int i, ret = 0;
5796 struct lpfc_nodelist *ndlp;
5797 struct Scsi_Host *shost;
5798
5799 vports = lpfc_create_vport_work_array(phba);
5800
63e801ce
JS		 5801 /* If driver cannot allocate memory, indicate fcf is in use */
5802 if (!vports)
5803 return 1;
5804
6fb120a7
JS		 5805 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
5806 shost = lpfc_shost_from_vport(vports[i]);
5807 spin_lock_irq(shost->host_lock);
0558056c
JS		 5808 /*
5809 * IF the CVL_RCVD bit is not set then we have sent the
5810 * flogi.
5811 * If dev_loss fires while we are waiting we do not want to
5812 * unreg the fcf.
5813 */
5814 if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
5815 spin_unlock_irq(shost->host_lock);
5816 ret = 1;
5817 goto out;
5818 }
6fb120a7
JS		 5819 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
5820 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
5821 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
5822 ret = 1;
5823 spin_unlock_irq(shost->host_lock);
5824 goto out;
80c17849
JS		 5825 } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
5826 ret = 1;
891478a2 5827 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
80c17849
JS		 5828 "2624 RPI %x DID %x flag %x "
5829 "still logged in\n",
5830 ndlp->nlp_rpi, ndlp->nlp_DID,
5831 ndlp->nlp_flag);
6fb120a7
JS		 5832 }
5833 }
5834 spin_unlock_irq(shost->host_lock);
5835 }
5836out:
5837 lpfc_destroy_vport_work_array(phba, vports);
5838 return ret;
5839}
5840
5841/**
5842 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
5843 * @phba: Pointer to hba context object.
5844 * @mboxq: Pointer to mailbox object.
5845 *
5846 * This function frees memory associated with the mailbox command.
5847 */
1b51197d 5848void
6fb120a7
JS		 5849lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5850{
5851 struct lpfc_vport *vport = mboxq->vport;
38b92ef8 5852 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6fb120a7
JS		 5853
5854 if (mboxq->u.mb.mbxStatus) {
5855 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5856 "2555 UNREG_VFI mbxStatus error x%x "
5857 "HBA state x%x\n",
5858 mboxq->u.mb.mbxStatus, vport->port_state);
5859 }
38b92ef8
JS		 5860 spin_lock_irq(shost->host_lock);
5861 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
5862 spin_unlock_irq(shost->host_lock);
6fb120a7
JS		 5863 mempool_free(mboxq, phba->mbox_mem_pool);
5864 return;
5865}
5866
5867/**
5868 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
5869 * @phba: Pointer to hba context object.
5870 * @mboxq: Pointer to mailbox object.
5871 *
5872 * This function frees memory associated with the mailbox command.
5873 */
5874static void
5875lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5876{
5877 struct lpfc_vport *vport = mboxq->vport;
5878
5879 if (mboxq->u.mb.mbxStatus) {
5880 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5881 "2550 UNREG_FCFI mbxStatus error x%x "
5882 "HBA state x%x\n",
5883 mboxq->u.mb.mbxStatus, vport->port_state);
5884 }
5885 mempool_free(mboxq, phba->mbox_mem_pool);
5886 return;
5887}
5888
5889/**
ecfd03c6 5890 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
6fb120a7
JS		 5891 * @phba: Pointer to hba context object.
5892 *
ecfd03c6
JS		 5893 * This function prepare the HBA for unregistering the currently registered
5894 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
5895 * VFIs.
6fb120a7 5896 */
ecfd03c6
JS		 5897int
5898lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
6fb120a7 5899{
6fb120a7 5900 struct lpfc_vport **vports;
695a814e 5901 struct lpfc_nodelist *ndlp;
72100cc4 5902 struct Scsi_Host *shost;
e74c03c8 5903 int i = 0, rc;
6fb120a7 5904
ecfd03c6 5905 /* Unregister RPIs */
6fb120a7 5906 if (lpfc_fcf_inuse(phba))
ecfd03c6 5907 lpfc_unreg_hba_rpis(phba);
6fb120a7 5908
4d9ab994
JS		 5909 /* At this point, all discovery is aborted */
5910 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
6fb120a7
JS		 5911
5912 /* Unregister VPIs */
5913 vports = lpfc_create_vport_work_array(phba);
ecfd03c6 5914 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
6fb120a7 5915 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
695a814e
JS		 5916 /* Stop FLOGI/FDISC retries */
5917 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
5918 if (ndlp)
5919 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
78730cfe 5920 lpfc_cleanup_pending_mbox(vports[i]);
5af5eee7
JS		 5921 if (phba->sli_rev == LPFC_SLI_REV4)
5922 lpfc_sli4_unreg_all_rpis(vports[i]);
6fb120a7 5923 lpfc_mbx_unreg_vpi(vports[i]);
72100cc4
JS		 5924 shost = lpfc_shost_from_vport(vports[i]);
5925 spin_lock_irq(shost->host_lock);
891478a2 5926 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
c868595d 5927 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
72100cc4 5928 spin_unlock_irq(shost->host_lock);
6fb120a7
JS		 5929 }
5930 lpfc_destroy_vport_work_array(phba, vports);
e74c03c8
JS		 5931 if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) {
5932 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
5933 if (ndlp)
5934 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
5935 lpfc_cleanup_pending_mbox(phba->pport);
5936 if (phba->sli_rev == LPFC_SLI_REV4)
5937 lpfc_sli4_unreg_all_rpis(phba->pport);
5938 lpfc_mbx_unreg_vpi(phba->pport);
5939 shost = lpfc_shost_from_vport(phba->pport);
5940 spin_lock_irq(shost->host_lock);
5941 phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
5942 phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED;
5943 spin_unlock_irq(shost->host_lock);
5944 }
6fb120a7 5945
695a814e
JS		 5946 /* Cleanup any outstanding ELS commands */
5947 lpfc_els_flush_all_cmd(phba);
5948
1b51197d
JS		 5949 /* Unregister the physical port VFI */
5950 rc = lpfc_issue_unreg_vfi(phba->pport);
5951 return rc;
ecfd03c6
JS		 5952}
5953
5954/**
5955 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
5956 * @phba: Pointer to hba context object.
5957 *
5958 * This function issues synchronous unregister FCF mailbox command to HBA to
5959 * unregister the currently registered FCF record. The driver does not reset
5960 * the driver FCF usage state flags.
5961 *
5962 * Return 0 if successfully issued, none-zero otherwise.
5963 */
5964int
5965lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
5966{
5967 LPFC_MBOXQ_t *mbox;
5968 int rc;
5969
6fb120a7
JS		 5970 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5971 if (!mbox) {
5972 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
ecfd03c6
JS		 5973 "2551 UNREG_FCFI mbox allocation failed"
5974 "HBA state x%x\n", phba->pport->port_state);
5975 return -ENOMEM;
6fb120a7 5976 }
6fb120a7
JS		 5977 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
5978 mbox->vport = phba->pport;
5979 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
5980 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5981
5982 if (rc == MBX_NOT_FINISHED) {
ecfd03c6
JS		 5983 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5984 "2552 Unregister FCFI command failed rc x%x "
5985 "HBA state x%x\n",
5986 rc, phba->pport->port_state);
5987 return -EINVAL;
5988 }
5989 return 0;
5990}
5991
5992/**
5993 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
5994 * @phba: Pointer to hba context object.
5995 *
5996 * This function unregisters the currently reigstered FCF. This function
5997 * also tries to find another FCF for discovery by rescan the HBA FCF table.
5998 */
5999void
6000lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
6001{
6002 int rc;
6003
6004 /* Preparation for unregistering fcf */
6005 rc = lpfc_unregister_fcf_prep(phba);
6006 if (rc) {
6007 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6008 "2748 Failed to prepare for unregistering "
6009 "HBA's FCF record: rc=%d\n", rc);
6fb120a7
JS		 6010 return;
6011 }
6012
ecfd03c6
JS		 6013 /* Now, unregister FCF record and reset HBA FCF state */
6014 rc = lpfc_sli4_unregister_fcf(phba);
6015 if (rc)
6016 return;
6017 /* Reset HBA FCF states after successful unregister FCF */
6018 phba->fcf.fcf_flag = 0;
fc2b989b 6019 phba->fcf.current_rec.flag = 0;
6fb120a7
JS		 6020
6021 /*
6022 * If driver is not unloading, check if there is any other
6023 * FCF record that can be used for discovery.
6024 */
6025 if ((phba->pport->load_flag & FC_UNLOADING) ||
ecfd03c6 6026 (phba->link_state < LPFC_LINK_UP))
6fb120a7
JS		 6027 return;
6028
0c9ab6f5
JS		 6029 /* This is considered as the initial FCF discovery scan */
6030 spin_lock_irq(&phba->hbalock);
6031 phba->fcf.fcf_flag |= FCF_INIT_DISC;
6032 spin_unlock_irq(&phba->hbalock);
38b92ef8
JS		 6033
6034 /* Reset FCF roundrobin bmask for new discovery */
7d791df7 6035 lpfc_sli4_clear_fcf_rr_bmask(phba);
38b92ef8 6036
0c9ab6f5 6037 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6fb120a7 6038
0c9ab6f5
JS		 6039 if (rc) {
6040 spin_lock_irq(&phba->hbalock);
6041 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
6042 spin_unlock_irq(&phba->hbalock);
6fb120a7 6043 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
ecfd03c6
JS		 6044 "2553 lpfc_unregister_unused_fcf failed "
6045 "to read FCF record HBA state x%x\n",
6046 phba->pport->port_state);
0c9ab6f5 6047 }
ecfd03c6
JS		 6048}
6049
6050/**
6051 * lpfc_unregister_fcf - Unregister the currently registered fcf record
6052 * @phba: Pointer to hba context object.
6053 *
6054 * This function just unregisters the currently reigstered FCF. It does not
6055 * try to find another FCF for discovery.
6056 */
6057void
6058lpfc_unregister_fcf(struct lpfc_hba *phba)
6059{
6060 int rc;
6061
6062 /* Preparation for unregistering fcf */
6063 rc = lpfc_unregister_fcf_prep(phba);
6064 if (rc) {
6065 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
6066 "2749 Failed to prepare for unregistering "
6067 "HBA's FCF record: rc=%d\n", rc);
6068 return;
6069 }
6070
6071 /* Now, unregister FCF record and reset HBA FCF state */
6072 rc = lpfc_sli4_unregister_fcf(phba);
6073 if (rc)
6074 return;
6075 /* Set proper HBA FCF states after successful unregister FCF */
6076 spin_lock_irq(&phba->hbalock);
6077 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
6078 spin_unlock_irq(&phba->hbalock);
6079}
6080
6081/**
6082 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
6083 * @phba: Pointer to hba context object.
6084 *
6085 * This function check if there are any connected remote port for the FCF and
6086 * if all the devices are disconnected, this function unregister FCFI.
6087 * This function also tries to use another FCF for discovery.
6088 */
6089void
6090lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
6091{
6092 /*
3804dc84
JS		 6093 * If HBA is not running in FIP mode, if HBA does not support
6094 * FCoE, if FCF discovery is ongoing, or if FCF has not been
6095 * registered, do nothing.
ecfd03c6
JS		 6096 */
6097 spin_lock_irq(&phba->hbalock);
76a95d75 6098 if (!(phba->hba_flag & HBA_FCOE_MODE) ||
ecfd03c6 6099 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
dbb6b3ab 6100 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
3804dc84 6101 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
dbb6b3ab 6102 (phba->pport->port_state == LPFC_FLOGI)) {
ecfd03c6
JS		 6103 spin_unlock_irq(&phba->hbalock);
6104 return;
6105 }
6106 spin_unlock_irq(&phba->hbalock);
6107
6108 if (lpfc_fcf_inuse(phba))
6109 return;
6110
6111 lpfc_unregister_fcf_rescan(phba);
6fb120a7
JS		 6112}
6113
6114/**
6115 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
6116 * @phba: Pointer to hba context object.
6117 * @buff: Buffer containing the FCF connection table as in the config
6118 * region.
6119 * This function create driver data structure for the FCF connection
6120 * record table read from config region 23.
6121 */
6122static void
6123lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
6124 uint8_t *buff)
6125{
6126 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6127 struct lpfc_fcf_conn_hdr *conn_hdr;
6128 struct lpfc_fcf_conn_rec *conn_rec;
6129 uint32_t record_count;
6130 int i;
6131
6132 /* Free the current connect table */
6133 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 6134 &phba->fcf_conn_rec_list, list) {
6135 list_del_init(&conn_entry->list);
6fb120a7 6136 kfree(conn_entry);
4d9ab994 6137 }
6fb120a7
JS		 6138
6139 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
6140 record_count = conn_hdr->length * sizeof(uint32_t)/
6141 sizeof(struct lpfc_fcf_conn_rec);
6142
6143 conn_rec = (struct lpfc_fcf_conn_rec *)
6144 (buff + sizeof(struct lpfc_fcf_conn_hdr));
6145
6146 for (i = 0; i < record_count; i++) {
6147 if (!(conn_rec[i].flags & FCFCNCT_VALID))
6148 continue;
6149 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
6150 GFP_KERNEL);
6151 if (!conn_entry) {
6152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6153 "2566 Failed to allocate connection"
6154 " table entry\n");
6155 return;
6156 }
6157
6158 memcpy(&conn_entry->conn_rec, &conn_rec[i],
6159 sizeof(struct lpfc_fcf_conn_rec));
6160 conn_entry->conn_rec.vlan_tag =
6161 le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF;
6162 conn_entry->conn_rec.flags =
6163 le16_to_cpu(conn_entry->conn_rec.flags);
6164 list_add_tail(&conn_entry->list,
6165 &phba->fcf_conn_rec_list);
6166 }
6167}
6168
6169/**
6170 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
6171 * @phba: Pointer to hba context object.
6172 * @buff: Buffer containing the FCoE parameter data structure.
6173 *
6174 * This function update driver data structure with config
6175 * parameters read from config region 23.
6176 */
6177static void
6178lpfc_read_fcoe_param(struct lpfc_hba *phba,
6179 uint8_t *buff)
6180{
6181 struct lpfc_fip_param_hdr *fcoe_param_hdr;
6182 struct lpfc_fcoe_params *fcoe_param;
6183
6184 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
6185 buff;
6186 fcoe_param = (struct lpfc_fcoe_params *)
32b9793f 6187 (buff + sizeof(struct lpfc_fip_param_hdr));
6fb120a7
JS		 6188
6189 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
6190 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
6191 return;
6192
6fb120a7
JS		 6193 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
6194 phba->valid_vlan = 1;
6195 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
6196 0xFFF;
6197 }
6198
6199 phba->fc_map[0] = fcoe_param->fc_map[0];
6200 phba->fc_map[1] = fcoe_param->fc_map[1];
6201 phba->fc_map[2] = fcoe_param->fc_map[2];
6202 return;
6203}
6204
6205/**
6206 * lpfc_get_rec_conf23 - Get a record type in config region data.
6207 * @buff: Buffer containing config region 23 data.
6208 * @size: Size of the data buffer.
6209 * @rec_type: Record type to be searched.
6210 *
25985edc 6211 * This function searches config region data to find the beginning
6fb120a7
JS		 6212 * of the record specified by record_type. If record found, this
6213 * function return pointer to the record else return NULL.
6214 */
6215static uint8_t *
6216lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
6217{
6218 uint32_t offset = 0, rec_length;
6219
6220 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
6221 (size < sizeof(uint32_t)))
6222 return NULL;
6223
6224 rec_length = buff[offset + 1];
6225
6226 /*
6227 * One TLV record has one word header and number of data words
6228 * specified in the rec_length field of the record header.
6229 */
6230 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
6231 <= size) {
6232 if (buff[offset] == rec_type)
6233 return &buff[offset];
6234
6235 if (buff[offset] == LPFC_REGION23_LAST_REC)
6236 return NULL;
6237
6238 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
6239 rec_length = buff[offset + 1];
6240 }
6241 return NULL;
6242}
6243
6244/**
6245 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
6246 * @phba: Pointer to lpfc_hba data structure.
6247 * @buff: Buffer containing config region 23 data.
6248 * @size: Size of the data buffer.
6249 *
eef35c2d 6250 * This function parses the FCoE config parameters in config region 23 and
6fb120a7
JS		 6251 * populate driver data structure with the parameters.
6252 */
6253void
6254lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
6255 uint8_t *buff,
6256 uint32_t size)
6257{
6258 uint32_t offset = 0, rec_length;
6259 uint8_t *rec_ptr;
6260
6261 /*
6262 * If data size is less than 2 words signature and version cannot be
6263 * verified.
6264 */
6265 if (size < 2*sizeof(uint32_t))
6266 return;
6267
6268 /* Check the region signature first */
6269 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
6270 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6271 "2567 Config region 23 has bad signature\n");
6272 return;
6273 }
6274
6275 offset += 4;
6276
6277 /* Check the data structure version */
6278 if (buff[offset] != LPFC_REGION23_VERSION) {
6279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6280 "2568 Config region 23 has bad version\n");
6281 return;
6282 }
6283 offset += 4;
6284
6285 rec_length = buff[offset + 1];
6286
6287 /* Read FCoE param record */
6288 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6289 size - offset, FCOE_PARAM_TYPE);
6290 if (rec_ptr)
6291 lpfc_read_fcoe_param(phba, rec_ptr);
6292
6293 /* Read FCF connection table */
6294 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
6295 size - offset, FCOE_CONN_TBL_TYPE);
6296 if (rec_ptr)
6297 lpfc_read_fcf_conn_tbl(phba, rec_ptr);
6298
6299}
kernel source for telekom puls (alcatel/mediatek)