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tree-wide: fix comment/printk typos
[linux-2.6-block.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
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dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
d8e93df1 4 * Copyright (C) 2004-2009 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
5a0e3ad6 23#include <linux/slab.h>
dea3101e 24#include <linux/pci.h>
25#include <linux/kthread.h>
26#include <linux/interrupt.h>
27
91886523 28#include <scsi/scsi.h>
dea3101e 29#include <scsi/scsi_device.h>
30#include <scsi/scsi_host.h>
31#include <scsi/scsi_transport_fc.h>
32
da0436e9 33#include "lpfc_hw4.h"
dea3101e 34#include "lpfc_hw.h"
ea2151b4 35#include "lpfc_nl.h"
dea3101e 36#include "lpfc_disc.h"
37#include "lpfc_sli.h"
da0436e9 38#include "lpfc_sli4.h"
dea3101e 39#include "lpfc_scsi.h"
40#include "lpfc.h"
41#include "lpfc_logmsg.h"
42#include "lpfc_crtn.h"
92d7f7b0 43#include "lpfc_vport.h"
858c9f6c 44#include "lpfc_debugfs.h"
dea3101e 45
46/* AlpaArray for assignment of scsid for scan-down and bind_method */
47static uint8_t lpfcAlpaArray[] = {
48 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
49 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
50 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
51 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
52 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
53 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
54 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
55 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
56 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
57 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
58 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
59 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
60 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
61};
62
2e0fef85 63static void lpfc_disc_timeout_handler(struct lpfc_vport *);
a6ababd2 64static void lpfc_disc_flush_list(struct lpfc_vport *vport);
32b9793f 65static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
dea3101e 66
c01f3208
JS		 67void
68lpfc_terminate_rport_io(struct fc_rport *rport)
dea3101e 69{
c01f3208
JS		 70 struct lpfc_rport_data *rdata;
71 struct lpfc_nodelist * ndlp;
72 struct lpfc_hba *phba;
dea3101e 73
c01f3208
JS		 74 rdata = rport->dd_data;
75 ndlp = rdata->pnode;
76
58da1ffb 77 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
c01f3208
JS		 78 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
79 printk(KERN_ERR "Cannot find remote node"
80 " to terminate I/O Data x%x\n",
81 rport->port_id);
dea3101e 82 return;
83 }
84
a257bf90 85 phba = ndlp->phba;
c01f3208 86
858c9f6c
JS		 87 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
88 "rport terminate: sid:x%x did:x%x flg:x%x",
89 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
90
c01f3208 91 if (ndlp->nlp_sid != NLP_NO_SID) {
51ef4c26
JS		 92 lpfc_sli_abort_iocb(ndlp->vport,
93 &phba->sli.ring[phba->sli.fcp_ring],
94 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
c01f3208 95 }
c01f3208
JS		 96}
97
98/*
99 * This function will be called when dev_loss_tmo fire.
100 */
101void
102lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
103{
104 struct lpfc_rport_data *rdata;
105 struct lpfc_nodelist * ndlp;
2e0fef85 106 struct lpfc_vport *vport;
858c9f6c 107 struct lpfc_hba *phba;
858c9f6c 108 struct lpfc_work_evt *evtp;
a8adb832
JS		 109 int put_node;
110 int put_rport;
c01f3208
JS		 111
112 rdata = rport->dd_data;
113 ndlp = rdata->pnode;
58da1ffb 114 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
c01f3208 115 return;
c01f3208 116
858c9f6c
JS		 117 vport = ndlp->vport;
118 phba = vport->phba;
119
120 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
121 "rport devlosscb: sid:x%x did:x%x flg:x%x",
122 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
123
a8adb832
JS		 124 /* Don't defer this if we are in the process of deleting the vport
125 * or unloading the driver. The unload will cleanup the node
126 * appropriately we just need to cleanup the ndlp rport info here.
127 */
128 if (vport->load_flag & FC_UNLOADING) {
129 put_node = rdata->pnode != NULL;
130 put_rport = ndlp->rport != NULL;
131 rdata->pnode = NULL;
132 ndlp->rport = NULL;
133 if (put_node)
134 lpfc_nlp_put(ndlp);
135 if (put_rport)
136 put_device(&rport->dev);
137 return;
138 }
139
140 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
141 return;
142
858c9f6c
JS		 143 evtp = &ndlp->dev_loss_evt;
144
145 if (!list_empty(&evtp->evt_listp))
146 return;
147
148 spin_lock_irq(&phba->hbalock);
fa4066b6
JS		 149 /* We need to hold the node by incrementing the reference
150 * count until this queued work is done
151 */
152 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
5e9d9b82
JS		 153 if (evtp->evt_arg1) {
154 evtp->evt = LPFC_EVT_DEV_LOSS;
155 list_add_tail(&evtp->evt_listp, &phba->work_list);
156 lpfc_worker_wake_up(phba);
157 }
858c9f6c
JS		 158 spin_unlock_irq(&phba->hbalock);
159
858c9f6c
JS		 160 return;
161}
162
163/*
164 * This function is called from the worker thread when dev_loss_tmo
165 * expire.
166 */
a6ababd2 167static void
858c9f6c
JS		 168lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
169{
170 struct lpfc_rport_data *rdata;
171 struct fc_rport *rport;
172 struct lpfc_vport *vport;
173 struct lpfc_hba *phba;
174 uint8_t *name;
87af33fe
JS		 175 int put_node;
176 int put_rport;
858c9f6c
JS		 177 int warn_on = 0;
178
179 rport = ndlp->rport;
180
181 if (!rport)
182 return;
183
184 rdata = rport->dd_data;
185 name = (uint8_t *) &ndlp->nlp_portname;
186 vport = ndlp->vport;
187 phba = vport->phba;
188
189 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
190 "rport devlosstmo:did:x%x type:x%x id:x%x",
191 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
192
a8adb832
JS		 193 /* Don't defer this if we are in the process of deleting the vport
194 * or unloading the driver. The unload will cleanup the node
195 * appropriately we just need to cleanup the ndlp rport info here.
196 */
197 if (vport->load_flag & FC_UNLOADING) {
09372820
JS		 198 if (ndlp->nlp_sid != NLP_NO_SID) {
199 /* flush the target */
200 lpfc_sli_abort_iocb(vport,
201 &phba->sli.ring[phba->sli.fcp_ring],
202 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
203 }
a8adb832
JS		 204 put_node = rdata->pnode != NULL;
205 put_rport = ndlp->rport != NULL;
206 rdata->pnode = NULL;
207 ndlp->rport = NULL;
208 if (put_node)
209 lpfc_nlp_put(ndlp);
210 if (put_rport)
211 put_device(&rport->dev);
212 return;
213 }
214
d7c255b2
JS		 215 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
216 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
217 "0284 Devloss timeout Ignored on "
218 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
219 "NPort x%x\n",
220 *name, *(name+1), *(name+2), *(name+3),
221 *(name+4), *(name+5), *(name+6), *(name+7),
222 ndlp->nlp_DID);
858c9f6c 223 return;
d7c255b2 224 }
858c9f6c 225
92d7f7b0
JS		 226 if (ndlp->nlp_type & NLP_FABRIC) {
227 /* We will clean up these Nodes in linkup */
228 put_node = rdata->pnode != NULL;
229 put_rport = ndlp->rport != NULL;
230 rdata->pnode = NULL;
231 ndlp->rport = NULL;
232 if (put_node)
233 lpfc_nlp_put(ndlp);
234 if (put_rport)
235 put_device(&rport->dev);
82085718 236 return;
92d7f7b0 237 }
82085718 238
dea3101e 239 if (ndlp->nlp_sid != NLP_NO_SID) {
6e8215e4 240 warn_on = 1;
dea3101e 241 /* flush the target */
51ef4c26
JS		 242 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
243 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
dea3101e 244 }
c01f3208 245
6e8215e4 246 if (warn_on) {
e8b62011
JS		 247 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
248 "0203 Devloss timeout on "
58da1ffb
JS		 249 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
250 "NPort x%06x Data: x%x x%x x%x\n",
e8b62011
JS		 251 *name, *(name+1), *(name+2), *(name+3),
252 *(name+4), *(name+5), *(name+6), *(name+7),
253 ndlp->nlp_DID, ndlp->nlp_flag,
254 ndlp->nlp_state, ndlp->nlp_rpi);
6e8215e4 255 } else {
e8b62011
JS		 256 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
257 "0204 Devloss timeout on "
58da1ffb
JS		 258 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
259 "NPort x%06x Data: x%x x%x x%x\n",
e8b62011
JS		 260 *name, *(name+1), *(name+2), *(name+3),
261 *(name+4), *(name+5), *(name+6), *(name+7),
262 ndlp->nlp_DID, ndlp->nlp_flag,
263 ndlp->nlp_state, ndlp->nlp_rpi);
6e8215e4
JSEC		 264 }
265
87af33fe
JS		 266 put_node = rdata->pnode != NULL;
267 put_rport = ndlp->rport != NULL;
268 rdata->pnode = NULL;
269 ndlp->rport = NULL;
270 if (put_node)
271 lpfc_nlp_put(ndlp);
272 if (put_rport)
273 put_device(&rport->dev);
274
2e0fef85 275 if (!(vport->load_flag & FC_UNLOADING) &&
1dcb58e5 276 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
82085718 277 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
ffc95493 278 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
589a52d6
JS		 279 (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) &&
280 (ndlp->nlp_state != NLP_STE_PRLI_ISSUE))
2e0fef85 281 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
6fb120a7
JS		 282
283 lpfc_unregister_unused_fcf(phba);
92d7f7b0 284}
c01f3208 285
ea2151b4 286/**
3621a710 287 * lpfc_alloc_fast_evt - Allocates data structure for posting event
ea2151b4
JS		 288 * @phba: Pointer to hba context object.
289 *
290 * This function is called from the functions which need to post
291 * events from interrupt context. This function allocates data
292 * structure required for posting event. It also keeps track of
293 * number of events pending and prevent event storm when there are
294 * too many events.
295 **/
296struct lpfc_fast_path_event *
297lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
298 struct lpfc_fast_path_event *ret;
299
300 /* If there are lot of fast event do not exhaust memory due to this */
301 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
302 return NULL;
303
304 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
305 GFP_ATOMIC);
6fb120a7 306 if (ret) {
ea2151b4 307 atomic_inc(&phba->fast_event_count);
6fb120a7
JS		 308 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
309 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
310 }
ea2151b4
JS		 311 return ret;
312}
313
314/**
3621a710 315 * lpfc_free_fast_evt - Frees event data structure
ea2151b4
JS		 316 * @phba: Pointer to hba context object.
317 * @evt: Event object which need to be freed.
318 *
319 * This function frees the data structure required for posting
320 * events.
321 **/
322void
323lpfc_free_fast_evt(struct lpfc_hba *phba,
324 struct lpfc_fast_path_event *evt) {
325
326 atomic_dec(&phba->fast_event_count);
327 kfree(evt);
328}
329
330/**
3621a710 331 * lpfc_send_fastpath_evt - Posts events generated from fast path
ea2151b4
JS		 332 * @phba: Pointer to hba context object.
333 * @evtp: Event data structure.
334 *
335 * This function is called from worker thread, when the interrupt
336 * context need to post an event. This function posts the event
337 * to fc transport netlink interface.
338 **/
339static void
340lpfc_send_fastpath_evt(struct lpfc_hba *phba,
341 struct lpfc_work_evt *evtp)
342{
343 unsigned long evt_category, evt_sub_category;
344 struct lpfc_fast_path_event *fast_evt_data;
345 char *evt_data;
346 uint32_t evt_data_size;
347 struct Scsi_Host *shost;
348
349 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
350 work_evt);
351
352 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
353 evt_sub_category = (unsigned long) fast_evt_data->un.
354 fabric_evt.subcategory;
355 shost = lpfc_shost_from_vport(fast_evt_data->vport);
356 if (evt_category == FC_REG_FABRIC_EVENT) {
357 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
358 evt_data = (char *) &fast_evt_data->un.read_check_error;
359 evt_data_size = sizeof(fast_evt_data->un.
360 read_check_error);
361 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
eaf15d5b 362 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
ea2151b4
JS		 363 evt_data = (char *) &fast_evt_data->un.fabric_evt;
364 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
365 } else {
366 lpfc_free_fast_evt(phba, fast_evt_data);
367 return;
368 }
369 } else if (evt_category == FC_REG_SCSI_EVENT) {
370 switch (evt_sub_category) {
371 case LPFC_EVENT_QFULL:
372 case LPFC_EVENT_DEVBSY:
373 evt_data = (char *) &fast_evt_data->un.scsi_evt;
374 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
375 break;
376 case LPFC_EVENT_CHECK_COND:
377 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
378 evt_data_size = sizeof(fast_evt_data->un.
379 check_cond_evt);
380 break;
381 case LPFC_EVENT_VARQUEDEPTH:
382 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
383 evt_data_size = sizeof(fast_evt_data->un.
384 queue_depth_evt);
385 break;
386 default:
387 lpfc_free_fast_evt(phba, fast_evt_data);
388 return;
389 }
390 } else {
391 lpfc_free_fast_evt(phba, fast_evt_data);
392 return;
393 }
394
395 fc_host_post_vendor_event(shost,
396 fc_get_event_number(),
397 evt_data_size,
398 evt_data,
ddcc50f0 399 LPFC_NL_VENDOR_ID);
ea2151b4
JS		 400
401 lpfc_free_fast_evt(phba, fast_evt_data);
402 return;
403}
404
dea3101e 405static void
2e0fef85 406lpfc_work_list_done(struct lpfc_hba *phba)
dea3101e 407{
408 struct lpfc_work_evt *evtp = NULL;
409 struct lpfc_nodelist *ndlp;
410 int free_evt;
411
2e0fef85
JS		 412 spin_lock_irq(&phba->hbalock);
413 while (!list_empty(&phba->work_list)) {
dea3101e 414 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
415 evt_listp);
2e0fef85 416 spin_unlock_irq(&phba->hbalock);
dea3101e 417 free_evt = 1;
2fe165b6 418 switch (evtp->evt) {
dea3101e 419 case LPFC_EVT_ELS_RETRY:
2e0fef85 420 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
dea3101e 421 lpfc_els_retry_delay_handler(ndlp);
92d7f7b0 422 free_evt = 0; /* evt is part of ndlp */
fa4066b6
JS		 423 /* decrement the node reference count held
424 * for this queued work
425 */
426 lpfc_nlp_put(ndlp);
dea3101e 427 break;
858c9f6c
JS		 428 case LPFC_EVT_DEV_LOSS:
429 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
858c9f6c
JS		 430 lpfc_dev_loss_tmo_handler(ndlp);
431 free_evt = 0;
fa4066b6
JS		 432 /* decrement the node reference count held for
433 * this queued work
434 */
858c9f6c
JS		 435 lpfc_nlp_put(ndlp);
436 break;
dea3101e 437 case LPFC_EVT_ONLINE:
2e0fef85
JS		 438 if (phba->link_state < LPFC_LINK_DOWN)
439 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
41415862 440 else
2e0fef85 441 *(int *) (evtp->evt_arg1) = 0;
dea3101e 442 complete((struct completion *)(evtp->evt_arg2));
443 break;
46fa311e 444 case LPFC_EVT_OFFLINE_PREP:
2e0fef85 445 if (phba->link_state >= LPFC_LINK_DOWN)
46fa311e
JS		 446 lpfc_offline_prep(phba);
447 *(int *)(evtp->evt_arg1) = 0;
448 complete((struct completion *)(evtp->evt_arg2));
449 break;
450 case LPFC_EVT_OFFLINE:
451 lpfc_offline(phba);
41415862
JW		 452 lpfc_sli_brdrestart(phba);
453 *(int *)(evtp->evt_arg1) =
46fa311e
JS		 454 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
455 lpfc_unblock_mgmt_io(phba);
41415862
JW		 456 complete((struct completion *)(evtp->evt_arg2));
457 break;
458 case LPFC_EVT_WARM_START:
46fa311e 459 lpfc_offline(phba);
9290831f 460 lpfc_reset_barrier(phba);
41415862
JW		 461 lpfc_sli_brdreset(phba);
462 lpfc_hba_down_post(phba);
463 *(int *)(evtp->evt_arg1) =
464 lpfc_sli_brdready(phba, HS_MBRDY);
46fa311e 465 lpfc_unblock_mgmt_io(phba);
41415862
JW		 466 complete((struct completion *)(evtp->evt_arg2));
467 break;
468 case LPFC_EVT_KILL:
46fa311e 469 lpfc_offline(phba);
9290831f 470 *(int *)(evtp->evt_arg1)
2e0fef85
JS		 471 = (phba->pport->stopped)
472 ? 0 : lpfc_sli_brdkill(phba);
46fa311e 473 lpfc_unblock_mgmt_io(phba);
dea3101e 474 complete((struct completion *)(evtp->evt_arg2));
475 break;
ea2151b4
JS		 476 case LPFC_EVT_FASTPATH_MGMT_EVT:
477 lpfc_send_fastpath_evt(phba, evtp);
478 free_evt = 0;
479 break;
78730cfe
JS		 480 case LPFC_EVT_RESET_HBA:
481 if (!(phba->pport->load_flag & FC_UNLOADING))
482 lpfc_reset_hba(phba);
483 break;
dea3101e 484 }
485 if (free_evt)
486 kfree(evtp);
2e0fef85 487 spin_lock_irq(&phba->hbalock);
dea3101e 488 }
2e0fef85 489 spin_unlock_irq(&phba->hbalock);
dea3101e 490
491}
492
311464ec 493static void
2e0fef85 494lpfc_work_done(struct lpfc_hba *phba)
dea3101e 495{
496 struct lpfc_sli_ring *pring;
858c9f6c 497 uint32_t ha_copy, status, control, work_port_events;
549e55cd 498 struct lpfc_vport **vports;
51ef4c26 499 struct lpfc_vport *vport;
549e55cd 500 int i;
dea3101e 501
2e0fef85 502 spin_lock_irq(&phba->hbalock);
dea3101e 503 ha_copy = phba->work_ha;
504 phba->work_ha = 0;
2e0fef85 505 spin_unlock_irq(&phba->hbalock);
dea3101e 506
da0436e9
JS		 507 /* First, try to post the next mailbox command to SLI4 device */
508 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
509 lpfc_sli4_post_async_mbox(phba);
510
2fe165b6 511 if (ha_copy & HA_ERATT)
9399627f 512 /* Handle the error attention event */
dea3101e 513 lpfc_handle_eratt(phba);
514
2fe165b6 515 if (ha_copy & HA_MBATT)
dea3101e 516 lpfc_sli_handle_mb_event(phba);
517
2fe165b6 518 if (ha_copy & HA_LATT)
dea3101e 519 lpfc_handle_latt(phba);
9399627f 520
da0436e9
JS		 521 /* Process SLI4 events */
522 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
523 if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
524 lpfc_sli4_fcp_xri_abort_event_proc(phba);
525 if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
526 lpfc_sli4_els_xri_abort_event_proc(phba);
527 if (phba->hba_flag & ASYNC_EVENT)
528 lpfc_sli4_async_event_proc(phba);
529 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
530 spin_lock_irq(&phba->hbalock);
531 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
532 spin_unlock_irq(&phba->hbalock);
533 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
534 }
ecfd03c6
JS		 535 if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
536 lpfc_sli4_fcf_redisc_event_proc(phba);
da0436e9
JS		 537 }
538
549e55cd
JS		 539 vports = lpfc_create_vport_work_array(phba);
540 if (vports != NULL)
da0436e9 541 for (i = 0; i <= phba->max_vports; i++) {
51ef4c26
JS		 542 /*
543 * We could have no vports in array if unloading, so if
544 * this happens then just use the pport
545 */
546 if (vports[i] == NULL && i == 0)
547 vport = phba->pport;
548 else
549 vport = vports[i];
550 if (vport == NULL)
551 break;
58da1ffb 552 spin_lock_irq(&vport->work_port_lock);
51ef4c26 553 work_port_events = vport->work_port_events;
58da1ffb
JS		 554 vport->work_port_events &= ~work_port_events;
555 spin_unlock_irq(&vport->work_port_lock);
549e55cd 556 if (work_port_events & WORKER_DISC_TMO)
51ef4c26 557 lpfc_disc_timeout_handler(vport);
549e55cd 558 if (work_port_events & WORKER_ELS_TMO)
51ef4c26 559 lpfc_els_timeout_handler(vport);
549e55cd
JS		 560 if (work_port_events & WORKER_HB_TMO)
561 lpfc_hb_timeout_handler(phba);
562 if (work_port_events & WORKER_MBOX_TMO)
563 lpfc_mbox_timeout_handler(phba);
564 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
565 lpfc_unblock_fabric_iocbs(phba);
566 if (work_port_events & WORKER_FDMI_TMO)
51ef4c26 567 lpfc_fdmi_timeout_handler(vport);
549e55cd
JS		 568 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
569 lpfc_ramp_down_queue_handler(phba);
570 if (work_port_events & WORKER_RAMP_UP_QUEUE)
571 lpfc_ramp_up_queue_handler(phba);
92d7f7b0 572 }
09372820 573 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 574
858c9f6c
JS		 575 pring = &phba->sli.ring[LPFC_ELS_RING];
576 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
577 status >>= (4*LPFC_ELS_RING);
4d9ab994
JS		 578 if ((status & HA_RXMASK) ||
579 (pring->flag & LPFC_DEFERRED_RING_EVENT) ||
45ed1190 580 (phba->hba_flag & HBA_SP_QUEUE_EVT)) {
0b727fea 581 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
858c9f6c 582 pring->flag |= LPFC_DEFERRED_RING_EVENT;
5e9d9b82
JS		 583 /* Set the lpfc data pending flag */
584 set_bit(LPFC_DATA_READY, &phba->data_flags);
858c9f6c 585 } else {
58da1ffb 586 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
858c9f6c
JS		 587 lpfc_sli_handle_slow_ring_event(phba, pring,
588 (status &
589 HA_RXMASK));
858c9f6c 590 }
bc73905a 591 if ((phba->sli_rev == LPFC_SLI_REV4) && pring->txq_cnt)
2a9bf3d0 592 lpfc_drain_txq(phba);
858c9f6c
JS		 593 /*
594 * Turn on Ring interrupts
595 */
3772a991
JS		 596 if (phba->sli_rev <= LPFC_SLI_REV3) {
597 spin_lock_irq(&phba->hbalock);
598 control = readl(phba->HCregaddr);
599 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
600 lpfc_debugfs_slow_ring_trc(phba,
601 "WRK Enable ring: cntl:x%x hacopy:x%x",
602 control, ha_copy, 0);
603
604 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
605 writel(control, phba->HCregaddr);
606 readl(phba->HCregaddr); /* flush */
607 } else {
608 lpfc_debugfs_slow_ring_trc(phba,
609 "WRK Ring ok: cntl:x%x hacopy:x%x",
610 control, ha_copy, 0);
611 }
612 spin_unlock_irq(&phba->hbalock);
a58cbd52 613 }
dea3101e 614 }
2e0fef85 615 lpfc_work_list_done(phba);
dea3101e 616}
617
dea3101e 618int
619lpfc_do_work(void *p)
620{
621 struct lpfc_hba *phba = p;
622 int rc;
dea3101e 623
624 set_user_nice(current, -20);
5e9d9b82 625 phba->data_flags = 0;
dea3101e 626
3a55b532 627 while (!kthread_should_stop()) {
5e9d9b82
JS		 628 /* wait and check worker queue activities */
629 rc = wait_event_interruptible(phba->work_waitq,
630 (test_and_clear_bit(LPFC_DATA_READY,
631 &phba->data_flags)
632 || kthread_should_stop()));
3a55b532
JS		 633 /* Signal wakeup shall terminate the worker thread */
634 if (rc) {
635 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
636 "0433 Wakeup on signal: rc=x%x\n", rc);
dea3101e 637 break;
3a55b532 638 }
dea3101e 639
5e9d9b82 640 /* Attend pending lpfc data processing */
dea3101e 641 lpfc_work_done(phba);
dea3101e 642 }
3a55b532
JS		 643 phba->worker_thread = NULL;
644 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
645 "0432 Worker thread stopped.\n");
dea3101e 646 return 0;
647}
648
649/*
650 * This is only called to handle FC worker events. Since this a rare
651 * occurance, we allocate a struct lpfc_work_evt structure here instead of
652 * embedding it in the IOCB.
653 */
654int
2e0fef85 655lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
dea3101e 656 uint32_t evt)
657{
658 struct lpfc_work_evt *evtp;
ed957684 659 unsigned long flags;
dea3101e 660
661 /*
662 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
663 * be queued to worker thread for processing
664 */
92d7f7b0 665 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
dea3101e 666 if (!evtp)
667 return 0;
668
669 evtp->evt_arg1 = arg1;
670 evtp->evt_arg2 = arg2;
671 evtp->evt = evt;
672
ed957684 673 spin_lock_irqsave(&phba->hbalock, flags);
071fbd3d 674 list_add_tail(&evtp->evt_listp, &phba->work_list);
ed957684 675 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e 676
5e9d9b82
JS		 677 lpfc_worker_wake_up(phba);
678
dea3101e 679 return 1;
680}
681
92d7f7b0
JS		 682void
683lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
684{
09372820 685 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0
JS		 686 struct lpfc_hba *phba = vport->phba;
687 struct lpfc_nodelist *ndlp, *next_ndlp;
688 int rc;
689
690 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 691 if (!NLP_CHK_NODE_ACT(ndlp))
692 continue;
92d7f7b0
JS		 693 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
694 continue;
98c9ea5c
JS		 695 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
696 ((vport->port_type == LPFC_NPIV_PORT) &&
697 (ndlp->nlp_DID == NameServer_DID)))
92d7f7b0
JS		 698 lpfc_unreg_rpi(vport, ndlp);
699
700 /* Leave Fabric nodes alone on link down */
4d9ab994
JS		 701 if ((phba->sli_rev < LPFC_SLI_REV4) &&
702 (!remove && ndlp->nlp_type & NLP_FABRIC))
92d7f7b0
JS		 703 continue;
704 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
705 remove
706 ? NLP_EVT_DEVICE_RM
707 : NLP_EVT_DEVICE_RECOVERY);
708 }
709 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
710 lpfc_mbx_unreg_vpi(vport);
09372820 711 spin_lock_irq(shost->host_lock);
92d7f7b0 712 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
09372820 713 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS		 714 }
715}
716
87af33fe 717void
98c9ea5c 718lpfc_port_link_failure(struct lpfc_vport *vport)
92d7f7b0 719{
695a814e
JS		 720 lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
721
45ed1190
JS		 722 /* Cleanup any outstanding received buffers */
723 lpfc_cleanup_rcv_buffers(vport);
724
92d7f7b0
JS		 725 /* Cleanup any outstanding RSCN activity */
726 lpfc_els_flush_rscn(vport);
727
728 /* Cleanup any outstanding ELS commands */
729 lpfc_els_flush_cmd(vport);
730
731 lpfc_cleanup_rpis(vport, 0);
732
92d7f7b0
JS		 733 /* Turn off discovery timer if its running */
734 lpfc_can_disctmo(vport);
735}
736
3772a991 737void
98c9ea5c
JS		 738lpfc_linkdown_port(struct lpfc_vport *vport)
739{
740 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
741
742 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
743
744 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
745 "Link Down: state:x%x rtry:x%x flg:x%x",
746 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
747
748 lpfc_port_link_failure(vport);
749
750}
751
dea3101e 752int
685f0bf7 753lpfc_linkdown(struct lpfc_hba *phba)
dea3101e 754{
2e0fef85
JS		 755 struct lpfc_vport *vport = phba->pport;
756 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
549e55cd 757 struct lpfc_vport **vports;
685f0bf7 758 LPFC_MBOXQ_t *mb;
549e55cd 759 int i;
dea3101e 760
3163f725 761 if (phba->link_state == LPFC_LINK_DOWN)
2e0fef85 762 return 0;
aacc20e3
JS		 763
764 /* Block all SCSI stack I/Os */
765 lpfc_scsi_dev_block(phba);
766
2e0fef85 767 spin_lock_irq(&phba->hbalock);
ecfd03c6 768 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
72100cc4 769 spin_unlock_irq(&phba->hbalock);
92d7f7b0 770 if (phba->link_state > LPFC_LINK_DOWN) {
2e0fef85 771 phba->link_state = LPFC_LINK_DOWN;
72100cc4 772 spin_lock_irq(shost->host_lock);
92d7f7b0 773 phba->pport->fc_flag &= ~FC_LBIT;
72100cc4 774 spin_unlock_irq(shost->host_lock);
92d7f7b0 775 }
549e55cd
JS		 776 vports = lpfc_create_vport_work_array(phba);
777 if (vports != NULL)
6fb120a7 778 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd
JS		 779 /* Issue a LINK DOWN event to all nodes */
780 lpfc_linkdown_port(vports[i]);
781 }
09372820 782 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 783 /* Clean up any firmware default rpi's */
2e0fef85
JS		 784 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
785 if (mb) {
92d7f7b0 786 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
ed957684 787 mb->vport = vport;
2e0fef85 788 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 789 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
dea3101e 790 == MBX_NOT_FINISHED) {
2e0fef85 791 mempool_free(mb, phba->mbox_mem_pool);
dea3101e 792 }
793 }
794
dea3101e 795 /* Setup myDID for link up if we are in pt2pt mode */
92d7f7b0
JS		 796 if (phba->pport->fc_flag & FC_PT2PT) {
797 phba->pport->fc_myDID = 0;
2e0fef85
JS		 798 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
799 if (mb) {
dea3101e 800 lpfc_config_link(phba, mb);
92d7f7b0 801 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
ed957684 802 mb->vport = vport;
0b727fea 803 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
dea3101e 804 == MBX_NOT_FINISHED) {
2e0fef85 805 mempool_free(mb, phba->mbox_mem_pool);
dea3101e 806 }
807 }
2e0fef85 808 spin_lock_irq(shost->host_lock);
92d7f7b0 809 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
2e0fef85 810 spin_unlock_irq(shost->host_lock);
dea3101e 811 }
2e0fef85 812
92d7f7b0
JS		 813 return 0;
814}
dea3101e 815
92d7f7b0
JS		 816static void
817lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
818{
819 struct lpfc_nodelist *ndlp;
dea3101e 820
92d7f7b0 821 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 822 if (!NLP_CHK_NODE_ACT(ndlp))
823 continue;
92d7f7b0
JS		 824 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
825 continue;
92d7f7b0 826 if (ndlp->nlp_type & NLP_FABRIC) {
e47c9093
JS		 827 /* On Linkup its safe to clean up the ndlp
828 * from Fabric connections.
829 */
92d7f7b0
JS		 830 if (ndlp->nlp_DID != Fabric_DID)
831 lpfc_unreg_rpi(vport, ndlp);
832 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
833 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
e47c9093
JS		 834 /* Fail outstanding IO now since device is
835 * marked for PLOGI.
836 */
92d7f7b0
JS		 837 lpfc_unreg_rpi(vport, ndlp);
838 }
839 }
dea3101e 840}
841
92d7f7b0
JS		 842static void
843lpfc_linkup_port(struct lpfc_vport *vport)
dea3101e 844{
92d7f7b0 845 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0
JS		 846 struct lpfc_hba *phba = vport->phba;
847
848 if ((vport->load_flag & FC_UNLOADING) != 0)
849 return;
850
858c9f6c
JS		 851 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
852 "Link Up: top:x%x speed:x%x flg:x%x",
853 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
854
92d7f7b0
JS		 855 /* If NPIV is not enabled, only bring the physical port up */
856 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
857 (vport != phba->pport))
858 return;
dea3101e 859
2e0fef85 860 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
d2873e4c 861
2e0fef85 862 spin_lock_irq(shost->host_lock);
2e0fef85
JS		 863 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
864 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
865 vport->fc_flag |= FC_NDISC_ACTIVE;
866 vport->fc_ns_retry = 0;
867 spin_unlock_irq(shost->host_lock);
dea3101e 868
92d7f7b0
JS		 869 if (vport->fc_flag & FC_LBIT)
870 lpfc_linkup_cleanup_nodes(vport);
dea3101e 871
92d7f7b0
JS		 872}
873
874static int
875lpfc_linkup(struct lpfc_hba *phba)
876{
549e55cd
JS		 877 struct lpfc_vport **vports;
878 int i;
92d7f7b0
JS		 879
880 phba->link_state = LPFC_LINK_UP;
881
882 /* Unblock fabric iocbs if they are blocked */
883 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
884 del_timer_sync(&phba->fabric_block_timer);
885
549e55cd
JS		 886 vports = lpfc_create_vport_work_array(phba);
887 if (vports != NULL)
6fb120a7 888 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
549e55cd 889 lpfc_linkup_port(vports[i]);
09372820 890 lpfc_destroy_vport_work_array(phba, vports);
6fb120a7
JS		 891 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
892 (phba->sli_rev < LPFC_SLI_REV4))
92d7f7b0 893 lpfc_issue_clear_la(phba, phba->pport);
dea3101e 894
895 return 0;
896}
897
898/*
899 * This routine handles processing a CLEAR_LA mailbox
900 * command upon completion. It is setup in the LPFC_MBOXQ
901 * as the completion routine when the command is
902 * handed off to the SLI layer.
903 */
a6ababd2 904static void
2e0fef85 905lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 906{
2e0fef85
JS		 907 struct lpfc_vport *vport = pmb->vport;
908 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
909 struct lpfc_sli *psli = &phba->sli;
04c68496 910 MAILBOX_t *mb = &pmb->u.mb;
dea3101e 911 uint32_t control;
912
dea3101e 913 /* Since we don't do discovery right now, turn these off here */
a4bc3379 914 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 915 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
916 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
917
918 /* Check for error */
919 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
92d7f7b0 920 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 921 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
922 "0320 CLEAR_LA mbxStatus error x%x hba "
923 "state x%x\n",
924 mb->mbxStatus, vport->port_state);
2e0fef85 925 phba->link_state = LPFC_HBA_ERROR;
dea3101e 926 goto out;
927 }
928
92d7f7b0
JS		 929 if (vport->port_type == LPFC_PHYSICAL_PORT)
930 phba->link_state = LPFC_HBA_READY;
931
932 spin_lock_irq(&phba->hbalock);
933 psli->sli_flag |= LPFC_PROCESS_LA;
934 control = readl(phba->HCregaddr);
935 control |= HC_LAINT_ENA;
936 writel(control, phba->HCregaddr);
937 readl(phba->HCregaddr); /* flush */
938 spin_unlock_irq(&phba->hbalock);
1b32f6aa 939 mempool_free(pmb, phba->mbox_mem_pool);
92d7f7b0 940 return;
dea3101e 941
dea3101e 942out:
943 /* Device Discovery completes */
e8b62011
JS		 944 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
945 "0225 Device Discovery completes\n");
2e0fef85 946 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 947
2e0fef85 948 spin_lock_irq(shost->host_lock);
58da1ffb 949 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
2e0fef85 950 spin_unlock_irq(shost->host_lock);
dea3101e 951
2e0fef85 952 lpfc_can_disctmo(vport);
dea3101e 953
954 /* turn on Link Attention interrupts */
2e0fef85
JS		 955
956 spin_lock_irq(&phba->hbalock);
dea3101e 957 psli->sli_flag |= LPFC_PROCESS_LA;
958 control = readl(phba->HCregaddr);
959 control |= HC_LAINT_ENA;
960 writel(control, phba->HCregaddr);
961 readl(phba->HCregaddr); /* flush */
2e0fef85 962 spin_unlock_irq(&phba->hbalock);
dea3101e 963
964 return;
965}
966
2e0fef85 967
dea3101e 968static void
25594c6b 969lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 970{
2e0fef85 971 struct lpfc_vport *vport = pmb->vport;
dea3101e 972
04c68496 973 if (pmb->u.mb.mbxStatus)
dea3101e 974 goto out;
dea3101e 975
25594c6b
JW		 976 mempool_free(pmb, phba->mbox_mem_pool);
977
978 if (phba->fc_topology == TOPOLOGY_LOOP &&
2e0fef85
JS		 979 vport->fc_flag & FC_PUBLIC_LOOP &&
980 !(vport->fc_flag & FC_LBIT)) {
25594c6b 981 /* Need to wait for FAN - use discovery timer
2e0fef85 982 * for timeout. port_state is identically
25594c6b
JW		 983 * LPFC_LOCAL_CFG_LINK while waiting for FAN
984 */
2e0fef85 985 lpfc_set_disctmo(vport);
25594c6b 986 return;
92d7f7b0 987 }
dea3101e 988
2e0fef85 989 /* Start discovery by sending a FLOGI. port_state is identically
25594c6b
JW		 990 * LPFC_FLOGI while waiting for FLOGI cmpl
991 */
92d7f7b0 992 if (vport->port_state != LPFC_FLOGI) {
92d7f7b0
JS		 993 lpfc_initial_flogi(vport);
994 }
25594c6b 995 return;
dea3101e 996
997out:
e8b62011
JS		 998 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
999 "0306 CONFIG_LINK mbxStatus error x%x "
1000 "HBA state x%x\n",
04c68496 1001 pmb->u.mb.mbxStatus, vport->port_state);
92d7f7b0 1002 mempool_free(pmb, phba->mbox_mem_pool);
25594c6b 1003
92d7f7b0 1004 lpfc_linkdown(phba);
25594c6b 1005
e8b62011
JS		 1006 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1007 "0200 CONFIG_LINK bad hba state x%x\n",
1008 vport->port_state);
dea3101e 1009
92d7f7b0 1010 lpfc_issue_clear_la(phba, vport);
dea3101e 1011 return;
1012}
1013
6fb120a7
JS		 1014static void
1015lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1016{
1017 struct lpfc_vport *vport = mboxq->vport;
6fb120a7
JS		 1018
1019 if (mboxq->u.mb.mbxStatus) {
1020 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1021 "2017 REG_FCFI mbxStatus error x%x "
1022 "HBA state x%x\n",
1023 mboxq->u.mb.mbxStatus, vport->port_state);
1024 mempool_free(mboxq, phba->mbox_mem_pool);
1025 return;
1026 }
1027
1028 /* Start FCoE discovery by sending a FLOGI. */
1029 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1030 /* Set the FCFI registered flag */
d439d286 1031 spin_lock_irq(&phba->hbalock);
6fb120a7 1032 phba->fcf.fcf_flag |= FCF_REGISTERED;
d439d286 1033 spin_unlock_irq(&phba->hbalock);
32b9793f
JS		 1034 /* If there is a pending FCoE event, restart FCF table scan. */
1035 if (lpfc_check_pending_fcoe_event(phba, 1)) {
1036 mempool_free(mboxq, phba->mbox_mem_pool);
1037 return;
1038 }
d439d286 1039 spin_lock_irq(&phba->hbalock);
ecfd03c6 1040 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
4d9ab994 1041 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
d439d286 1042 spin_unlock_irq(&phba->hbalock);
1c6f4ef5 1043 if (vport->port_state != LPFC_FLOGI)
6fb120a7 1044 lpfc_initial_flogi(vport);
6fb120a7
JS		 1045
1046 mempool_free(mboxq, phba->mbox_mem_pool);
1047 return;
1048}
1049
1050/**
1051 * lpfc_fab_name_match - Check if the fcf fabric name match.
1052 * @fab_name: pointer to fabric name.
1053 * @new_fcf_record: pointer to fcf record.
1054 *
1055 * This routine compare the fcf record's fabric name with provided
1056 * fabric name. If the fabric name are identical this function
1057 * returns 1 else return 0.
1058 **/
1059static uint32_t
1060lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1061{
ecfd03c6
JS		 1062 if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
1063 return 0;
1064 if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
1065 return 0;
1066 if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
1067 return 0;
1068 if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
1069 return 0;
1070 if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
1071 return 0;
1072 if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
6fb120a7 1073 return 0;
ecfd03c6
JS		 1074 if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
1075 return 0;
1076 if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
1077 return 0;
1078 return 1;
6fb120a7
JS		 1079}
1080
8fa38513
JS		 1081/**
1082 * lpfc_sw_name_match - Check if the fcf switch name match.
1083 * @fab_name: pointer to fabric name.
1084 * @new_fcf_record: pointer to fcf record.
1085 *
1086 * This routine compare the fcf record's switch name with provided
1087 * switch name. If the switch name are identical this function
1088 * returns 1 else return 0.
1089 **/
1090static uint32_t
1091lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1092{
ecfd03c6
JS		 1093 if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
1094 return 0;
1095 if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
1096 return 0;
1097 if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
8fa38513 1098 return 0;
ecfd03c6
JS		 1099 if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
1100 return 0;
1101 if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
1102 return 0;
1103 if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
1104 return 0;
1105 if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
1106 return 0;
1107 if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
1108 return 0;
1109 return 1;
8fa38513
JS		 1110}
1111
6fb120a7
JS		 1112/**
1113 * lpfc_mac_addr_match - Check if the fcf mac address match.
ecfd03c6 1114 * @mac_addr: pointer to mac address.
6fb120a7
JS		 1115 * @new_fcf_record: pointer to fcf record.
1116 *
1117 * This routine compare the fcf record's mac address with HBA's
1118 * FCF mac address. If the mac addresses are identical this function
1119 * returns 1 else return 0.
1120 **/
1121static uint32_t
ecfd03c6 1122lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
6fb120a7 1123{
ecfd03c6
JS		 1124 if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
1125 return 0;
1126 if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
1127 return 0;
1128 if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
1129 return 0;
1130 if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
1131 return 0;
1132 if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
1133 return 0;
1134 if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
6fb120a7 1135 return 0;
ecfd03c6
JS		 1136 return 1;
1137}
1138
1139static bool
1140lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
1141{
1142 return (curr_vlan_id == new_vlan_id);
6fb120a7
JS		 1143}
1144
1145/**
1146 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
ecfd03c6 1147 * @fcf: pointer to driver fcf record.
6fb120a7
JS		 1148 * @new_fcf_record: pointer to fcf record.
1149 *
1150 * This routine copies the FCF information from the FCF
1151 * record to lpfc_hba data structure.
1152 **/
1153static void
ecfd03c6
JS		 1154lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
1155 struct fcf_record *new_fcf_record)
6fb120a7 1156{
ecfd03c6
JS		 1157 /* Fabric name */
1158 fcf_rec->fabric_name[0] =
6fb120a7 1159 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
ecfd03c6 1160 fcf_rec->fabric_name[1] =
6fb120a7 1161 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
ecfd03c6 1162 fcf_rec->fabric_name[2] =
6fb120a7 1163 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
ecfd03c6 1164 fcf_rec->fabric_name[3] =
6fb120a7 1165 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
ecfd03c6 1166 fcf_rec->fabric_name[4] =
6fb120a7 1167 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
ecfd03c6 1168 fcf_rec->fabric_name[5] =
6fb120a7 1169 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
ecfd03c6 1170 fcf_rec->fabric_name[6] =
6fb120a7 1171 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
ecfd03c6 1172 fcf_rec->fabric_name[7] =
6fb120a7 1173 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
ecfd03c6
JS		 1174 /* Mac address */
1175 fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1176 fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1177 fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1178 fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1179 fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1180 fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1181 /* FCF record index */
1182 fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1183 /* FCF record priority */
1184 fcf_rec->priority = new_fcf_record->fip_priority;
1185 /* Switch name */
1186 fcf_rec->switch_name[0] =
8fa38513 1187 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
ecfd03c6 1188 fcf_rec->switch_name[1] =
8fa38513 1189 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
ecfd03c6 1190 fcf_rec->switch_name[2] =
8fa38513 1191 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
ecfd03c6 1192 fcf_rec->switch_name[3] =
8fa38513 1193 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
ecfd03c6 1194 fcf_rec->switch_name[4] =
8fa38513 1195 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
ecfd03c6 1196 fcf_rec->switch_name[5] =
8fa38513 1197 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
ecfd03c6 1198 fcf_rec->switch_name[6] =
8fa38513 1199 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
ecfd03c6 1200 fcf_rec->switch_name[7] =
8fa38513 1201 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
6fb120a7
JS		 1202}
1203
ecfd03c6
JS		 1204/**
1205 * lpfc_update_fcf_record - Update driver fcf record
1206 * @phba: pointer to lpfc hba data structure.
1207 * @fcf_rec: pointer to driver fcf record.
1208 * @new_fcf_record: pointer to hba fcf record.
1209 * @addr_mode: address mode to be set to the driver fcf record.
1210 * @vlan_id: vlan tag to be set to the driver fcf record.
1211 * @flag: flag bits to be set to the driver fcf record.
1212 *
1213 * This routine updates the driver FCF record from the new HBA FCF record
1214 * together with the address mode, vlan_id, and other informations. This
1215 * routine is called with the host lock held.
1216 **/
1217static void
1218__lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
1219 struct fcf_record *new_fcf_record, uint32_t addr_mode,
1220 uint16_t vlan_id, uint32_t flag)
1221{
1222 /* Copy the fields from the HBA's FCF record */
1223 lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
1224 /* Update other fields of driver FCF record */
1225 fcf_rec->addr_mode = addr_mode;
1226 fcf_rec->vlan_id = vlan_id;
1227 fcf_rec->flag |= (flag | RECORD_VALID);
1228}
1229
6fb120a7
JS		 1230/**
1231 * lpfc_register_fcf - Register the FCF with hba.
1232 * @phba: pointer to lpfc hba data structure.
1233 *
1234 * This routine issues a register fcfi mailbox command to register
1235 * the fcf with HBA.
1236 **/
1237static void
1238lpfc_register_fcf(struct lpfc_hba *phba)
1239{
1240 LPFC_MBOXQ_t *fcf_mbxq;
1241 int rc;
6fb120a7 1242
d439d286 1243 spin_lock_irq(&phba->hbalock);
6fb120a7
JS		 1244
1245 /* If the FCF is not availabe do nothing. */
1246 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
4d9ab994 1247 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
d439d286 1248 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 1249 return;
1250 }
1251
1252 /* The FCF is already registered, start discovery */
1253 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
ecfd03c6 1254 phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
32b9793f 1255 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
d439d286 1256 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 1257 if (phba->pport->port_state != LPFC_FLOGI)
1258 lpfc_initial_flogi(phba->pport);
1259 return;
1260 }
d439d286 1261 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 1262
1263 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool,
1264 GFP_KERNEL);
4d9ab994 1265 if (!fcf_mbxq) {
d439d286 1266 spin_lock_irq(&phba->hbalock);
4d9ab994 1267 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
d439d286 1268 spin_unlock_irq(&phba->hbalock);
6fb120a7 1269 return;
4d9ab994 1270 }
6fb120a7
JS		 1271
1272 lpfc_reg_fcfi(phba, fcf_mbxq);
1273 fcf_mbxq->vport = phba->pport;
1274 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1275 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
4d9ab994 1276 if (rc == MBX_NOT_FINISHED) {
d439d286 1277 spin_lock_irq(&phba->hbalock);
4d9ab994 1278 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
d439d286 1279 spin_unlock_irq(&phba->hbalock);
6fb120a7 1280 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
4d9ab994 1281 }
6fb120a7
JS		 1282
1283 return;
1284}
1285
1286/**
1287 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1288 * @phba: pointer to lpfc hba data structure.
1289 * @new_fcf_record: pointer to fcf record.
1290 * @boot_flag: Indicates if this record used by boot bios.
1291 * @addr_mode: The address mode to be used by this FCF
ecfd03c6 1292 * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
6fb120a7
JS		 1293 *
1294 * This routine compare the fcf record with connect list obtained from the
1295 * config region to decide if this FCF can be used for SAN discovery. It returns
1296 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1297 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1298 * is used by boot bios and addr_mode will indicate the addressing mode to be
1299 * used for this FCF when the function returns.
1300 * If the FCF record need to be used with a particular vlan id, the vlan is
1301 * set in the vlan_id on return of the function. If not VLAN tagging need to
dbb6b3ab 1302 * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
6fb120a7
JS		 1303 **/
1304static int
1305lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1306 struct fcf_record *new_fcf_record,
1307 uint32_t *boot_flag, uint32_t *addr_mode,
1308 uint16_t *vlan_id)
1309{
1310 struct lpfc_fcf_conn_entry *conn_entry;
4d9ab994
JS		 1311 int i, j, fcf_vlan_id = 0;
1312
1313 /* Find the lowest VLAN id in the FCF record */
1314 for (i = 0; i < 512; i++) {
1315 if (new_fcf_record->vlan_bitmap[i]) {
1316 fcf_vlan_id = i * 8;
1317 j = 0;
1318 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1319 j++;
1320 fcf_vlan_id++;
1321 }
1322 break;
1323 }
1324 }
6fb120a7 1325
0c287589
JS		 1326 /* If FCF not available return 0 */
1327 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1328 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record))
1329 return 0;
1330
45ed1190 1331 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
6fb120a7
JS		 1332 *boot_flag = 0;
1333 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1334 new_fcf_record);
1335 if (phba->valid_vlan)
1336 *vlan_id = phba->vlan_id;
1337 else
dbb6b3ab 1338 *vlan_id = LPFC_FCOE_NULL_VID;
6fb120a7
JS		 1339 return 1;
1340 }
1341
1342 /*
1343 * If there are no FCF connection table entry, driver connect to all
1344 * FCFs.
1345 */
1346 if (list_empty(&phba->fcf_conn_rec_list)) {
1347 *boot_flag = 0;
1348 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1349 new_fcf_record);
0c287589
JS		 1350
1351 /*
1352 * When there are no FCF connect entries, use driver's default
1353 * addressing mode - FPMA.
1354 */
1355 if (*addr_mode & LPFC_FCF_FPMA)
1356 *addr_mode = LPFC_FCF_FPMA;
1357
4d9ab994
JS		 1358 /* If FCF record report a vlan id use that vlan id */
1359 if (fcf_vlan_id)
1360 *vlan_id = fcf_vlan_id;
1361 else
dbb6b3ab 1362 *vlan_id = LPFC_FCOE_NULL_VID;
6fb120a7
JS		 1363 return 1;
1364 }
1365
ecfd03c6
JS		 1366 list_for_each_entry(conn_entry,
1367 &phba->fcf_conn_rec_list, list) {
6fb120a7
JS		 1368 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1369 continue;
1370
1371 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1372 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
8fa38513
JS		 1373 new_fcf_record))
1374 continue;
1375 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1376 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1377 new_fcf_record))
6fb120a7 1378 continue;
6fb120a7
JS		 1379 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1380 /*
1381 * If the vlan bit map does not have the bit set for the
1382 * vlan id to be used, then it is not a match.
1383 */
1384 if (!(new_fcf_record->vlan_bitmap
1385 [conn_entry->conn_rec.vlan_tag / 8] &
1386 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1387 continue;
1388 }
1389
0c287589
JS		 1390 /*
1391 * If connection record does not support any addressing mode,
1392 * skip the FCF record.
1393 */
1394 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1395 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1396 continue;
1397
6fb120a7
JS		 1398 /*
1399 * Check if the connection record specifies a required
1400 * addressing mode.
1401 */
1402 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1403 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1404
1405 /*
1406 * If SPMA required but FCF not support this continue.
1407 */
1408 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1409 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1410 new_fcf_record) & LPFC_FCF_SPMA))
1411 continue;
1412
1413 /*
1414 * If FPMA required but FCF not support this continue.
1415 */
1416 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1417 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1418 new_fcf_record) & LPFC_FCF_FPMA))
1419 continue;
1420 }
1421
1422 /*
1423 * This fcf record matches filtering criteria.
1424 */
1425 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1426 *boot_flag = 1;
1427 else
1428 *boot_flag = 0;
1429
0c287589
JS		 1430 /*
1431 * If user did not specify any addressing mode, or if the
1432 * prefered addressing mode specified by user is not supported
1433 * by FCF, allow fabric to pick the addressing mode.
1434 */
6fb120a7
JS		 1435 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1436 new_fcf_record);
1437 /*
1438 * If the user specified a required address mode, assign that
1439 * address mode
1440 */
1441 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1442 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1443 *addr_mode = (conn_entry->conn_rec.flags &
1444 FCFCNCT_AM_SPMA) ?
1445 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1446 /*
1447 * If the user specified a prefered address mode, use the
1448 * addr mode only if FCF support the addr_mode.
1449 */
1450 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1451 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1452 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1453 (*addr_mode & LPFC_FCF_SPMA))
1454 *addr_mode = LPFC_FCF_SPMA;
1455 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1456 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1457 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1458 (*addr_mode & LPFC_FCF_FPMA))
1459 *addr_mode = LPFC_FCF_FPMA;
6fb120a7 1460
4d9ab994 1461 /* If matching connect list has a vlan id, use it */
6fb120a7
JS		 1462 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1463 *vlan_id = conn_entry->conn_rec.vlan_tag;
4d9ab994
JS		 1464 /*
1465 * If no vlan id is specified in connect list, use the vlan id
1466 * in the FCF record
1467 */
1468 else if (fcf_vlan_id)
1469 *vlan_id = fcf_vlan_id;
6fb120a7 1470 else
dbb6b3ab 1471 *vlan_id = LPFC_FCOE_NULL_VID;
6fb120a7
JS		 1472
1473 return 1;
1474 }
1475
1476 return 0;
1477}
1478
32b9793f
JS		 1479/**
1480 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1481 * @phba: pointer to lpfc hba data structure.
1482 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1483 *
1484 * This function check if there is any fcoe event pending while driver
1485 * scan FCF entries. If there is any pending event, it will restart the
1486 * FCF saning and return 1 else return 0.
1487 */
1488int
1489lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1490{
32b9793f
JS		 1491 /*
1492 * If the Link is up and no FCoE events while in the
1493 * FCF discovery, no need to restart FCF discovery.
1494 */
1495 if ((phba->link_state >= LPFC_LINK_UP) &&
1496 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
1497 return 0;
1498
0c9ab6f5
JS		 1499 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1500 "2768 Pending link or FCF event during current "
1501 "handling of the previous event: link_state:x%x, "
1502 "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
1503 phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
1504 phba->fcoe_eventtag);
1505
32b9793f
JS		 1506 spin_lock_irq(&phba->hbalock);
1507 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1508 spin_unlock_irq(&phba->hbalock);
1509
0c9ab6f5
JS		 1510 if (phba->link_state >= LPFC_LINK_UP) {
1511 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1512 "2780 Restart FCF table scan due to "
1513 "pending FCF event:evt_tag_at_scan:x%x, "
1514 "evt_tag_current:x%x\n",
1515 phba->fcoe_eventtag_at_fcf_scan,
1516 phba->fcoe_eventtag);
1517 lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
1518 } else {
4d9ab994
JS		 1519 /*
1520 * Do not continue FCF discovery and clear FCF_DISC_INPROGRESS
1521 * flag
1522 */
dbb6b3ab
JS		 1523 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
1524 "2833 Stop FCF discovery process due to link "
1525 "state change (x%x)\n", phba->link_state);
1c6f4ef5 1526 spin_lock_irq(&phba->hbalock);
4d9ab994 1527 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
0c9ab6f5 1528 phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
1c6f4ef5
JS		 1529 spin_unlock_irq(&phba->hbalock);
1530 }
32b9793f 1531
0c9ab6f5 1532 /* Unregister the currently registered FCF if required */
32b9793f
JS		 1533 if (unreg_fcf) {
1534 spin_lock_irq(&phba->hbalock);
1535 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1536 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 1537 lpfc_sli4_unregister_fcf(phba);
32b9793f 1538 }
32b9793f
JS		 1539 return 1;
1540}
1541
6fb120a7 1542/**
999d813f
JS		 1543 * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
1544 * @phba: pointer to lpfc hba data structure.
1545 * @fcf_cnt: number of eligible fcf record seen so far.
1546 *
1547 * This function makes an running random selection decision on FCF record to
1548 * use through a sequence of @fcf_cnt eligible FCF records with equal
1549 * probability. To perform integer manunipulation of random numbers with
1550 * size unit32_t, the lower 16 bits of the 32-bit random number returned
1551 * from random32() are taken as the random random number generated.
1552 *
1553 * Returns true when outcome is for the newly read FCF record should be
1554 * chosen; otherwise, return false when outcome is for keeping the previously
1555 * chosen FCF record.
1556 **/
1557static bool
1558lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
1559{
1560 uint32_t rand_num;
1561
1562 /* Get 16-bit uniform random number */
1563 rand_num = (0xFFFF & random32());
1564
1565 /* Decision with probability 1/fcf_cnt */
1566 if ((fcf_cnt * rand_num) < 0xFFFF)
1567 return true;
1568 else
1569 return false;
1570}
1571
1572/**
3804dc84 1573 * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
6fb120a7
JS		 1574 * @phba: pointer to lpfc hba data structure.
1575 * @mboxq: pointer to mailbox object.
0c9ab6f5 1576 * @next_fcf_index: pointer to holder of next fcf index.
6fb120a7 1577 *
0c9ab6f5
JS		 1578 * This routine parses the non-embedded fcf mailbox command by performing the
1579 * necessarily error checking, non-embedded read FCF record mailbox command
1580 * SGE parsing, and endianness swapping.
1581 *
1582 * Returns the pointer to the new FCF record in the non-embedded mailbox
1583 * command DMA memory if successfully, other NULL.
6fb120a7 1584 */
0c9ab6f5
JS		 1585static struct fcf_record *
1586lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
1587 uint16_t *next_fcf_index)
6fb120a7
JS		 1588{
1589 void *virt_addr;
1590 dma_addr_t phys_addr;
6fb120a7
JS		 1591 struct lpfc_mbx_sge sge;
1592 struct lpfc_mbx_read_fcf_tbl *read_fcf;
1593 uint32_t shdr_status, shdr_add_status;
1594 union lpfc_sli4_cfg_shdr *shdr;
1595 struct fcf_record *new_fcf_record;
32b9793f 1596
6fb120a7
JS		 1597 /* Get the first SGE entry from the non-embedded DMA memory. This
1598 * routine only uses a single SGE.
1599 */
1600 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1601 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
1602 if (unlikely(!mboxq->sge_array)) {
1603 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1604 "2524 Failed to get the non-embedded SGE "
1605 "virtual address\n");
0c9ab6f5 1606 return NULL;
6fb120a7
JS		 1607 }
1608 virt_addr = mboxq->sge_array->addr[0];
1609
1610 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
1611 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
0c9ab6f5 1612 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6fb120a7 1613 if (shdr_status || shdr_add_status) {
0c9ab6f5
JS		 1614 if (shdr_status == STATUS_FCF_TABLE_EMPTY)
1615 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
def9c7a9
JS		 1616 "2726 READ_FCF_RECORD Indicates empty "
1617 "FCF table.\n");
0c9ab6f5
JS		 1618 else
1619 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
def9c7a9 1620 "2521 READ_FCF_RECORD mailbox failed "
0c9ab6f5
JS		 1621 "with status x%x add_status x%x, "
1622 "mbx\n", shdr_status, shdr_add_status);
1623 return NULL;
6fb120a7 1624 }
0c9ab6f5
JS		 1625
1626 /* Interpreting the returned information of the FCF record */
6fb120a7
JS		 1627 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1628 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1629 sizeof(struct lpfc_mbx_read_fcf_tbl));
0c9ab6f5 1630 *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
6fb120a7
JS		 1631 new_fcf_record = (struct fcf_record *)(virt_addr +
1632 sizeof(struct lpfc_mbx_read_fcf_tbl));
1633 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
cb5172ea
JS		 1634 offsetof(struct fcf_record, vlan_bitmap));
1635 new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
1636 new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
6fb120a7 1637
0c9ab6f5
JS		 1638 return new_fcf_record;
1639}
1640
1641/**
1642 * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
1643 * @phba: pointer to lpfc hba data structure.
1644 * @fcf_record: pointer to the fcf record.
1645 * @vlan_id: the lowest vlan identifier associated to this fcf record.
1646 * @next_fcf_index: the index to the next fcf record in hba's fcf table.
1647 *
1648 * This routine logs the detailed FCF record if the LOG_FIP loggin is
1649 * enabled.
1650 **/
1651static void
1652lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
1653 struct fcf_record *fcf_record,
1654 uint16_t vlan_id,
1655 uint16_t next_fcf_index)
1656{
1657 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1658 "2764 READ_FCF_RECORD:\n"
1659 "\tFCF_Index : x%x\n"
1660 "\tFCF_Avail : x%x\n"
1661 "\tFCF_Valid : x%x\n"
1662 "\tFIP_Priority : x%x\n"
1663 "\tMAC_Provider : x%x\n"
1664 "\tLowest VLANID : x%x\n"
1665 "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
1666 "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1667 "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
1668 "\tNext_FCF_Index: x%x\n",
1669 bf_get(lpfc_fcf_record_fcf_index, fcf_record),
1670 bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
1671 bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
1672 fcf_record->fip_priority,
1673 bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
1674 vlan_id,
1675 bf_get(lpfc_fcf_record_mac_0, fcf_record),
1676 bf_get(lpfc_fcf_record_mac_1, fcf_record),
1677 bf_get(lpfc_fcf_record_mac_2, fcf_record),
1678 bf_get(lpfc_fcf_record_mac_3, fcf_record),
1679 bf_get(lpfc_fcf_record_mac_4, fcf_record),
1680 bf_get(lpfc_fcf_record_mac_5, fcf_record),
1681 bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
1682 bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
1683 bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
1684 bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
1685 bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
1686 bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
1687 bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
1688 bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
1689 bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
1690 bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
1691 bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
1692 bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
1693 bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
1694 bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
1695 bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
1696 bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
1697 next_fcf_index);
1698}
1699
dbb6b3ab
JS		 1700/**
1701 lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
1702 * @phba: pointer to lpfc hba data structure.
1703 * @fcf_rec: pointer to an existing FCF record.
1704 * @new_fcf_record: pointer to a new FCF record.
1705 * @new_vlan_id: vlan id from the new FCF record.
1706 *
1707 * This function performs matching test of a new FCF record against an existing
1708 * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
1709 * will not be used as part of the FCF record matching criteria.
1710 *
1711 * Returns true if all the fields matching, otherwise returns false.
1712 */
1713static bool
1714lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
1715 struct lpfc_fcf_rec *fcf_rec,
1716 struct fcf_record *new_fcf_record,
1717 uint16_t new_vlan_id)
1718{
1719 if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
1720 if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
1721 return false;
1722 if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
1723 return false;
1724 if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
1725 return false;
1726 if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
1727 return false;
1728 return true;
1729}
1730
0c9ab6f5
JS		 1731/**
1732 * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
1733 * @phba: pointer to lpfc hba data structure.
1734 * @mboxq: pointer to mailbox object.
1735 *
1736 * This function iterates through all the fcf records available in
1737 * HBA and chooses the optimal FCF record for discovery. After finding
1738 * the FCF for discovery it registers the FCF record and kicks start
1739 * discovery.
1740 * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
1741 * use an FCF record which matches fabric name and mac address of the
1742 * currently used FCF record.
1743 * If the driver supports only one FCF, it will try to use the FCF record
1744 * used by BOOT_BIOS.
1745 */
1746void
1747lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1748{
1749 struct fcf_record *new_fcf_record;
1750 uint32_t boot_flag, addr_mode;
1751 uint16_t fcf_index, next_fcf_index;
1752 struct lpfc_fcf_rec *fcf_rec = NULL;
1753 uint16_t vlan_id;
999d813f
JS		 1754 uint32_t seed;
1755 bool select_new_fcf;
0c9ab6f5
JS		 1756 int rc;
1757
1758 /* If there is pending FCoE event restart FCF table scan */
1759 if (lpfc_check_pending_fcoe_event(phba, 0)) {
1760 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1761 return;
1762 }
1763
1764 /* Parse the FCF record from the non-embedded mailbox command */
1765 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
1766 &next_fcf_index);
1767 if (!new_fcf_record) {
1768 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
1769 "2765 Mailbox command READ_FCF_RECORD "
1770 "failed to retrieve a FCF record.\n");
1771 /* Let next new FCF event trigger fast failover */
1772 spin_lock_irq(&phba->hbalock);
1773 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1774 spin_unlock_irq(&phba->hbalock);
1775 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1776 return;
1777 }
1778
1779 /* Check the FCF record against the connection list */
ecfd03c6
JS		 1780 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
1781 &addr_mode, &vlan_id);
0c9ab6f5
JS		 1782
1783 /* Log the FCF record information if turned on */
1784 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
1785 next_fcf_index);
1786
6fb120a7
JS		 1787 /*
1788 * If the fcf record does not match with connect list entries
0c9ab6f5
JS		 1789 * read the next entry; otherwise, this is an eligible FCF
1790 * record for round robin FCF failover.
6fb120a7 1791 */
0c9ab6f5
JS		 1792 if (!rc) {
1793 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
dbb6b3ab 1794 "2781 FCF record (x%x) failed FCF "
0c9ab6f5
JS		 1795 "connection list check, fcf_avail:x%x, "
1796 "fcf_valid:x%x\n",
1797 bf_get(lpfc_fcf_record_fcf_index,
1798 new_fcf_record),
1799 bf_get(lpfc_fcf_record_fcf_avail,
1800 new_fcf_record),
1801 bf_get(lpfc_fcf_record_fcf_valid,
1802 new_fcf_record));
dbb6b3ab
JS		 1803 if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
1804 lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
1805 new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
1806 /*
1807 * In case the current in-use FCF record becomes
1808 * invalid/unavailable during FCF discovery that
1809 * was not triggered by fast FCF failover process,
1810 * treat it as fast FCF failover.
1811 */
1812 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
1813 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
1814 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
1815 "2835 Invalid in-use FCF "
1816 "record (x%x) reported, "
1817 "entering fast FCF failover "
1818 "mode scanning.\n",
1819 phba->fcf.current_rec.fcf_indx);
1820 spin_lock_irq(&phba->hbalock);
1821 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
1822 spin_unlock_irq(&phba->hbalock);
1823 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1824 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
1825 LPFC_FCOE_FCF_GET_FIRST);
1826 return;
1827 }
1828 }
6fb120a7 1829 goto read_next_fcf;
0c9ab6f5
JS		 1830 } else {
1831 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1832 rc = lpfc_sli4_fcf_rr_index_set(phba, fcf_index);
1833 if (rc)
1834 goto read_next_fcf;
1835 }
1836
6fb120a7
JS		 1837 /*
1838 * If this is not the first FCF discovery of the HBA, use last
ecfd03c6
JS		 1839 * FCF record for the discovery. The condition that a rescan
1840 * matches the in-use FCF record: fabric name, switch name, mac
1841 * address, and vlan_id.
6fb120a7 1842 */
0c9ab6f5 1843 spin_lock_irq(&phba->hbalock);
6fb120a7 1844 if (phba->fcf.fcf_flag & FCF_IN_USE) {
dbb6b3ab
JS		 1845 if (lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
1846 new_fcf_record, vlan_id)) {
6fb120a7 1847 phba->fcf.fcf_flag |= FCF_AVAILABLE;
ecfd03c6
JS		 1848 if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
1849 /* Stop FCF redisc wait timer if pending */
1850 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
1851 else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
1852 /* If in fast failover, mark it's completed */
38b92ef8 1853 phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
0c9ab6f5 1854 spin_unlock_irq(&phba->hbalock);
dbb6b3ab
JS		 1855 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1856 "2836 The new FCF record (x%x) "
1857 "matches the in-use FCF record "
1858 "(x%x)\n",
1859 phba->fcf.current_rec.fcf_indx,
1860 bf_get(lpfc_fcf_record_fcf_index,
1861 new_fcf_record));
6fb120a7
JS		 1862 goto out;
1863 }
ecfd03c6
JS		 1864 /*
1865 * Read next FCF record from HBA searching for the matching
1866 * with in-use record only if not during the fast failover
1867 * period. In case of fast failover period, it shall try to
1868 * determine whether the FCF record just read should be the
1869 * next candidate.
1870 */
1871 if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
0c9ab6f5 1872 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 1873 goto read_next_fcf;
1874 }
6fb120a7 1875 }
ecfd03c6
JS		 1876 /*
1877 * Update on failover FCF record only if it's in FCF fast-failover
1878 * period; otherwise, update on current FCF record.
1879 */
fc2b989b
JS		 1880 if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
1881 fcf_rec = &phba->fcf.failover_rec;
1882 else
ecfd03c6
JS		 1883 fcf_rec = &phba->fcf.current_rec;
1884
6fb120a7
JS		 1885 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
1886 /*
ecfd03c6
JS		 1887 * If the driver FCF record does not have boot flag
1888 * set and new hba fcf record has boot flag set, use
1889 * the new hba fcf record.
6fb120a7 1890 */
ecfd03c6
JS		 1891 if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
1892 /* Choose this FCF record */
dbb6b3ab
JS		 1893 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1894 "2837 Update current FCF record "
1895 "(x%x) with new FCF record (x%x)\n",
1896 fcf_rec->fcf_indx,
1897 bf_get(lpfc_fcf_record_fcf_index,
1898 new_fcf_record));
ecfd03c6
JS		 1899 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
1900 addr_mode, vlan_id, BOOT_ENABLE);
0c9ab6f5 1901 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 1902 goto read_next_fcf;
1903 }
1904 /*
ecfd03c6
JS		 1905 * If the driver FCF record has boot flag set and the
1906 * new hba FCF record does not have boot flag, read
1907 * the next FCF record.
6fb120a7 1908 */
ecfd03c6 1909 if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
0c9ab6f5 1910 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 1911 goto read_next_fcf;
1912 }
1913 /*
ecfd03c6
JS		 1914 * If the new hba FCF record has lower priority value
1915 * than the driver FCF record, use the new record.
6fb120a7 1916 */
fc2b989b 1917 if (new_fcf_record->fip_priority < fcf_rec->priority) {
999d813f 1918 /* Choose the new FCF record with lower priority */
dbb6b3ab
JS		 1919 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1920 "2838 Update current FCF record "
1921 "(x%x) with new FCF record (x%x)\n",
1922 fcf_rec->fcf_indx,
1923 bf_get(lpfc_fcf_record_fcf_index,
1924 new_fcf_record));
ecfd03c6
JS		 1925 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
1926 addr_mode, vlan_id, 0);
999d813f
JS		 1927 /* Reset running random FCF selection count */
1928 phba->fcf.eligible_fcf_cnt = 1;
1929 } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
1930 /* Update running random FCF selection count */
1931 phba->fcf.eligible_fcf_cnt++;
1932 select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
1933 phba->fcf.eligible_fcf_cnt);
dbb6b3ab
JS		 1934 if (select_new_fcf) {
1935 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1936 "2839 Update current FCF record "
1937 "(x%x) with new FCF record (x%x)\n",
1938 fcf_rec->fcf_indx,
1939 bf_get(lpfc_fcf_record_fcf_index,
1940 new_fcf_record));
999d813f
JS		 1941 /* Choose the new FCF by random selection */
1942 __lpfc_update_fcf_record(phba, fcf_rec,
1943 new_fcf_record,
1944 addr_mode, vlan_id, 0);
dbb6b3ab 1945 }
6fb120a7 1946 }
0c9ab6f5 1947 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 1948 goto read_next_fcf;
1949 }
1950 /*
ecfd03c6
JS		 1951 * This is the first suitable FCF record, choose this record for
1952 * initial best-fit FCF.
6fb120a7 1953 */
ecfd03c6 1954 if (fcf_rec) {
dbb6b3ab
JS		 1955 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
1956 "2840 Update current FCF record "
1957 "with initial FCF record (x%x)\n",
1958 bf_get(lpfc_fcf_record_fcf_index,
1959 new_fcf_record));
ecfd03c6
JS		 1960 __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
1961 addr_mode, vlan_id, (boot_flag ?
1962 BOOT_ENABLE : 0));
1963 phba->fcf.fcf_flag |= FCF_AVAILABLE;
999d813f
JS		 1964 /* Setup initial running random FCF selection count */
1965 phba->fcf.eligible_fcf_cnt = 1;
1966 /* Seeding the random number generator for random selection */
1967 seed = (uint32_t)(0xFFFFFFFF & jiffies);
1968 srandom32(seed);
6fb120a7 1969 }
0c9ab6f5 1970 spin_unlock_irq(&phba->hbalock);
6fb120a7
JS		 1971 goto read_next_fcf;
1972
1973read_next_fcf:
1974 lpfc_sli4_mbox_cmd_free(phba, mboxq);
ecfd03c6
JS		 1975 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
1976 if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
1977 /*
1978 * Case of FCF fast failover scan
1979 */
1980
1981 /*
1982 * It has not found any suitable FCF record, cancel
1983 * FCF scan inprogress, and do nothing
1984 */
1985 if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
0c9ab6f5
JS		 1986 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
1987 "2782 No suitable FCF record "
1988 "found during this round of "
1989 "post FCF rediscovery scan: "
1990 "fcf_evt_tag:x%x, fcf_index: "
1991 "x%x\n",
1992 phba->fcoe_eventtag_at_fcf_scan,
1993 bf_get(lpfc_fcf_record_fcf_index,
1994 new_fcf_record));
1995 /*
1996 * Let next new FCF event trigger fast
1997 * failover
1998 */
1999 spin_lock_irq(&phba->hbalock);
ecfd03c6 2000 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
0c9ab6f5 2001 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 2002 return;
2003 }
2004 /*
2005 * It has found a suitable FCF record that is not
2006 * the same as in-use FCF record, unregister the
2007 * in-use FCF record, replace the in-use FCF record
2008 * with the new FCF record, mark FCF fast failover
2009 * completed, and then start register the new FCF
2010 * record.
2011 */
2012
0c9ab6f5 2013 /* Unregister the current in-use FCF record */
ecfd03c6 2014 lpfc_unregister_fcf(phba);
0c9ab6f5
JS		 2015
2016 /* Replace in-use record with the new record */
dbb6b3ab
JS		 2017 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2018 "2842 Replace the current in-use "
2019 "FCF record (x%x) with failover FCF "
2020 "record (x%x)\n",
2021 phba->fcf.current_rec.fcf_indx,
2022 phba->fcf.failover_rec.fcf_indx);
ecfd03c6
JS		 2023 memcpy(&phba->fcf.current_rec,
2024 &phba->fcf.failover_rec,
2025 sizeof(struct lpfc_fcf_rec));
3804dc84
JS		 2026 /*
2027 * Mark the fast FCF failover rediscovery completed
2028 * and the start of the first round of the roundrobin
2029 * FCF failover.
2030 */
0c9ab6f5 2031 spin_lock_irq(&phba->hbalock);
3804dc84
JS		 2032 phba->fcf.fcf_flag &=
2033 ~(FCF_REDISC_FOV | FCF_REDISC_RRU);
0c9ab6f5
JS		 2034 spin_unlock_irq(&phba->hbalock);
2035 /*
2036 * Set up the initial registered FCF index for FLOGI
2037 * round robin FCF failover.
2038 */
2039 phba->fcf.fcf_rr_init_indx =
2040 phba->fcf.failover_rec.fcf_indx;
ecfd03c6
JS		 2041 /* Register to the new FCF record */
2042 lpfc_register_fcf(phba);
2043 } else {
2044 /*
2045 * In case of transaction period to fast FCF failover,
2046 * do nothing when search to the end of the FCF table.
2047 */
2048 if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
2049 (phba->fcf.fcf_flag & FCF_REDISC_PEND))
2050 return;
dbb6b3ab
JS		 2051
2052 if (phba->fcf.fcf_flag & FCF_IN_USE) {
2053 /*
2054 * In case the current in-use FCF record no
2055 * longer existed during FCF discovery that
2056 * was not triggered by fast FCF failover
2057 * process, treat it as fast FCF failover.
2058 */
2059 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2060 "2841 In-use FCF record (x%x) "
2061 "not reported, entering fast "
2062 "FCF failover mode scanning.\n",
2063 phba->fcf.current_rec.fcf_indx);
2064 spin_lock_irq(&phba->hbalock);
2065 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
2066 spin_unlock_irq(&phba->hbalock);
2067 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2068 lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2069 LPFC_FCOE_FCF_GET_FIRST);
2070 return;
2071 }
2072
ecfd03c6
JS		 2073 /*
2074 * Otherwise, initial scan or post linkdown rescan,
0c9ab6f5
JS		 2075 * register with the best FCF record found so far
2076 * through the FCF scanning process.
2077 */
2078
3804dc84
JS		 2079 /*
2080 * Mark the initial FCF discovery completed and
2081 * the start of the first round of the roundrobin
2082 * FCF failover.
2083 */
0c9ab6f5 2084 spin_lock_irq(&phba->hbalock);
3804dc84
JS		 2085 phba->fcf.fcf_flag &=
2086 ~(FCF_INIT_DISC | FCF_REDISC_RRU);
0c9ab6f5
JS		 2087 spin_unlock_irq(&phba->hbalock);
2088 /*
2089 * Set up the initial registered FCF index for FLOGI
2090 * round robin FCF failover
ecfd03c6 2091 */
0c9ab6f5
JS		 2092 phba->fcf.fcf_rr_init_indx =
2093 phba->fcf.current_rec.fcf_indx;
2094 /* Register to the new FCF record */
ecfd03c6
JS		 2095 lpfc_register_fcf(phba);
2096 }
2097 } else
0c9ab6f5 2098 lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
6fb120a7
JS		 2099 return;
2100
2101out:
2102 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2103 lpfc_register_fcf(phba);
2104
2105 return;
2106}
2107
0c9ab6f5
JS		 2108/**
2109 * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf round robin read_fcf mbox cmpl hdler
2110 * @phba: pointer to lpfc hba data structure.
2111 * @mboxq: pointer to mailbox object.
2112 *
2113 * This is the callback function for FLOGI failure round robin FCF failover
2114 * read FCF record mailbox command from the eligible FCF record bmask for
2115 * performing the failover. If the FCF read back is not valid/available, it
2116 * fails through to retrying FLOGI to the currently registered FCF again.
2117 * Otherwise, if the FCF read back is valid and available, it will set the
2118 * newly read FCF record to the failover FCF record, unregister currently
2119 * registered FCF record, copy the failover FCF record to the current
2120 * FCF record, and then register the current FCF record before proceeding
2121 * to trying FLOGI on the new failover FCF.
2122 */
2123void
2124lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2125{
2126 struct fcf_record *new_fcf_record;
2127 uint32_t boot_flag, addr_mode;
2128 uint16_t next_fcf_index;
2129 uint16_t current_fcf_index;
2130 uint16_t vlan_id;
2131
2132 /* If link state is not up, stop the round robin failover process */
2133 if (phba->link_state < LPFC_LINK_UP) {
2134 spin_lock_irq(&phba->hbalock);
2135 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
2136 spin_unlock_irq(&phba->hbalock);
2137 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2138 return;
2139 }
2140
2141 /* Parse the FCF record from the non-embedded mailbox command */
2142 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2143 &next_fcf_index);
2144 if (!new_fcf_record) {
2145 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
2146 "2766 Mailbox command READ_FCF_RECORD "
2147 "failed to retrieve a FCF record.\n");
2148 goto out;
2149 }
2150
2151 /* Get the needed parameters from FCF record */
2152 lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2153 &addr_mode, &vlan_id);
2154
2155 /* Log the FCF record information if turned on */
2156 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2157 next_fcf_index);
2158
2159 /* Upload new FCF record to the failover FCF record */
dbb6b3ab
JS		 2160 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2161 "2834 Update the current FCF record (x%x) "
2162 "with the next FCF record (x%x)\n",
2163 phba->fcf.failover_rec.fcf_indx,
2164 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record));
0c9ab6f5
JS		 2165 spin_lock_irq(&phba->hbalock);
2166 __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
2167 new_fcf_record, addr_mode, vlan_id,
2168 (boot_flag ? BOOT_ENABLE : 0));
2169 spin_unlock_irq(&phba->hbalock);
2170
2171 current_fcf_index = phba->fcf.current_rec.fcf_indx;
2172
2173 /* Unregister the current in-use FCF record */
2174 lpfc_unregister_fcf(phba);
2175
2176 /* Replace in-use record with the new record */
2177 memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
2178 sizeof(struct lpfc_fcf_rec));
2179
2180 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2181 "2783 FLOGI round robin FCF failover from FCF "
dbb6b3ab 2182 "(x%x) to FCF (x%x).\n",
0c9ab6f5
JS		 2183 current_fcf_index,
2184 bf_get(lpfc_fcf_record_fcf_index, new_fcf_record));
2185
2186out:
2187 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2188 lpfc_register_fcf(phba);
2189}
2190
2191/**
2192 * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
2193 * @phba: pointer to lpfc hba data structure.
2194 * @mboxq: pointer to mailbox object.
2195 *
2196 * This is the callback function of read FCF record mailbox command for
2197 * updating the eligible FCF bmask for FLOGI failure round robin FCF
2198 * failover when a new FCF event happened. If the FCF read back is
2199 * valid/available and it passes the connection list check, it updates
2200 * the bmask for the eligible FCF record for round robin failover.
2201 */
2202void
2203lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2204{
2205 struct fcf_record *new_fcf_record;
2206 uint32_t boot_flag, addr_mode;
2207 uint16_t fcf_index, next_fcf_index;
2208 uint16_t vlan_id;
2209 int rc;
2210
2211 /* If link state is not up, no need to proceed */
2212 if (phba->link_state < LPFC_LINK_UP)
2213 goto out;
2214
2215 /* If FCF discovery period is over, no need to proceed */
3804dc84 2216 if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
0c9ab6f5
JS		 2217 goto out;
2218
2219 /* Parse the FCF record from the non-embedded mailbox command */
2220 new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
2221 &next_fcf_index);
2222 if (!new_fcf_record) {
2223 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2224 "2767 Mailbox command READ_FCF_RECORD "
2225 "failed to retrieve a FCF record.\n");
2226 goto out;
2227 }
2228
2229 /* Check the connection list for eligibility */
2230 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
2231 &addr_mode, &vlan_id);
2232
2233 /* Log the FCF record information if turned on */
2234 lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
2235 next_fcf_index);
2236
2237 if (!rc)
2238 goto out;
2239
2240 /* Update the eligible FCF record index bmask */
2241 fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
2242 rc = lpfc_sli4_fcf_rr_index_set(phba, fcf_index);
2243
2244out:
2245 lpfc_sli4_mbox_cmd_free(phba, mboxq);
2246}
2247
1c6834a7
JS		 2248/**
2249 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
2250 * @phba: pointer to lpfc hba data structure.
2251 * @mboxq: pointer to mailbox data structure.
2252 *
2253 * This function handles completion of init vpi mailbox command.
2254 */
695a814e 2255void
1c6834a7
JS		 2256lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2257{
2258 struct lpfc_vport *vport = mboxq->vport;
695a814e 2259 struct lpfc_nodelist *ndlp;
72100cc4
JS		 2260 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2261
1c6834a7
JS		 2262 if (mboxq->u.mb.mbxStatus) {
2263 lpfc_printf_vlog(vport, KERN_ERR,
2264 LOG_MBOX,
2265 "2609 Init VPI mailbox failed 0x%x\n",
2266 mboxq->u.mb.mbxStatus);
2267 mempool_free(mboxq, phba->mbox_mem_pool);
2268 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2269 return;
2270 }
72100cc4 2271 spin_lock_irq(shost->host_lock);
1c6834a7 2272 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
72100cc4 2273 spin_unlock_irq(shost->host_lock);
1c6834a7 2274
695a814e
JS		 2275 /* If this port is physical port or FDISC is done, do reg_vpi */
2276 if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
2277 ndlp = lpfc_findnode_did(vport, Fabric_DID);
2278 if (!ndlp)
2279 lpfc_printf_vlog(vport, KERN_ERR,
2280 LOG_DISCOVERY,
2281 "2731 Cannot find fabric "
2282 "controller node\n");
2283 else
2284 lpfc_register_new_vport(phba, vport, ndlp);
2285 mempool_free(mboxq, phba->mbox_mem_pool);
2286 return;
2287 }
2288
1c6834a7
JS		 2289 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2290 lpfc_initial_fdisc(vport);
2291 else {
2292 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
6a9c52cf
JS		 2293 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2294 "2606 No NPIV Fabric support\n");
1c6834a7 2295 }
695a814e 2296 mempool_free(mboxq, phba->mbox_mem_pool);
1c6834a7
JS		 2297 return;
2298}
2299
ecfd03c6
JS		 2300/**
2301 * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
2302 * @vport: pointer to lpfc_vport data structure.
2303 *
2304 * This function issue a init_vpi mailbox command to initialize
2305 * VPI for the vport.
2306 */
2307void
2308lpfc_issue_init_vpi(struct lpfc_vport *vport)
2309{
2310 LPFC_MBOXQ_t *mboxq;
2311 int rc;
2312
2313 mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
2314 if (!mboxq) {
2315 lpfc_printf_vlog(vport, KERN_ERR,
2316 LOG_MBOX, "2607 Failed to allocate "
2317 "init_vpi mailbox\n");
2318 return;
2319 }
2320 lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
2321 mboxq->vport = vport;
2322 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
2323 rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
2324 if (rc == MBX_NOT_FINISHED) {
2325 lpfc_printf_vlog(vport, KERN_ERR,
2326 LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
2327 mempool_free(mboxq, vport->phba->mbox_mem_pool);
2328 }
2329}
2330
6fb120a7
JS		 2331/**
2332 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
2333 * @phba: pointer to lpfc hba data structure.
2334 *
2335 * This function loops through the list of vports on the @phba and issues an
2336 * FDISC if possible.
2337 */
2338void
2339lpfc_start_fdiscs(struct lpfc_hba *phba)
2340{
2341 struct lpfc_vport **vports;
2342 int i;
2343
2344 vports = lpfc_create_vport_work_array(phba);
2345 if (vports != NULL) {
2346 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2347 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
2348 continue;
2349 /* There are no vpi for this vport */
2350 if (vports[i]->vpi > phba->max_vpi) {
2351 lpfc_vport_set_state(vports[i],
2352 FC_VPORT_FAILED);
2353 continue;
2354 }
2355 if (phba->fc_topology == TOPOLOGY_LOOP) {
2356 lpfc_vport_set_state(vports[i],
2357 FC_VPORT_LINKDOWN);
2358 continue;
2359 }
1c6834a7 2360 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
ecfd03c6 2361 lpfc_issue_init_vpi(vports[i]);
1c6834a7
JS		 2362 continue;
2363 }
6fb120a7
JS		 2364 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
2365 lpfc_initial_fdisc(vports[i]);
2366 else {
2367 lpfc_vport_set_state(vports[i],
2368 FC_VPORT_NO_FABRIC_SUPP);
2369 lpfc_printf_vlog(vports[i], KERN_ERR,
2370 LOG_ELS,
2371 "0259 No NPIV "
2372 "Fabric support\n");
2373 }
2374 }
2375 }
2376 lpfc_destroy_vport_work_array(phba, vports);
2377}
2378
2379void
2380lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2381{
2382 struct lpfc_dmabuf *dmabuf = mboxq->context1;
2383 struct lpfc_vport *vport = mboxq->vport;
72100cc4 2384 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6fb120a7
JS		 2385
2386 if (mboxq->u.mb.mbxStatus) {
2387 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2388 "2018 REG_VFI mbxStatus error x%x "
2389 "HBA state x%x\n",
2390 mboxq->u.mb.mbxStatus, vport->port_state);
2391 if (phba->fc_topology == TOPOLOGY_LOOP) {
2392 /* FLOGI failed, use loop map to make discovery list */
2393 lpfc_disc_list_loopmap(vport);
2394 /* Start discovery */
2395 lpfc_disc_start(vport);
2396 goto fail_free_mem;
2397 }
2398 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2399 goto fail_free_mem;
2400 }
c868595d 2401 /* The VPI is implicitly registered when the VFI is registered */
72100cc4 2402 spin_lock_irq(shost->host_lock);
c868595d 2403 vport->vpi_state |= LPFC_VPI_REGISTERED;
695a814e 2404 vport->fc_flag |= FC_VFI_REGISTERED;
695a814e 2405 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
72100cc4 2406 spin_unlock_irq(shost->host_lock);
6fb120a7
JS		 2407
2408 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
2409 lpfc_start_fdiscs(phba);
2410 lpfc_do_scr_ns_plogi(phba, vport);
2411 }
2412
2413fail_free_mem:
2414 mempool_free(mboxq, phba->mbox_mem_pool);
2415 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
2416 kfree(dmabuf);
2417 return;
2418}
2419
dea3101e 2420static void
2e0fef85 2421lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 2422{
6fb120a7 2423 MAILBOX_t *mb = &pmb->u.mb;
dea3101e 2424 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
2e0fef85 2425 struct lpfc_vport *vport = pmb->vport;
dea3101e 2426
2427
2428 /* Check for error */
2429 if (mb->mbxStatus) {
2430 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 2431 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2432 "0319 READ_SPARAM mbxStatus error x%x "
2433 "hba state x%x>\n",
2434 mb->mbxStatus, vport->port_state);
dea3101e 2435 lpfc_linkdown(phba);
dea3101e 2436 goto out;
2437 }
2438
2e0fef85 2439 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
dea3101e 2440 sizeof (struct serv_parm));
a12e07bc 2441 if (phba->cfg_soft_wwnn)
2e0fef85
JS		 2442 u64_to_wwn(phba->cfg_soft_wwnn,
2443 vport->fc_sparam.nodeName.u.wwn);
c3f28afa 2444 if (phba->cfg_soft_wwpn)
2e0fef85
JS		 2445 u64_to_wwn(phba->cfg_soft_wwpn,
2446 vport->fc_sparam.portName.u.wwn);
92d7f7b0
JS		 2447 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
2448 sizeof(vport->fc_nodename));
2449 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
2450 sizeof(vport->fc_portname));
2451 if (vport->port_type == LPFC_PHYSICAL_PORT) {
2452 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
2453 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
2454 }
2455
dea3101e 2456 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2457 kfree(mp);
2e0fef85 2458 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 2459 return;
2460
2461out:
2462 pmb->context1 = NULL;
2463 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2464 kfree(mp);
92d7f7b0
JS		 2465 lpfc_issue_clear_la(phba, vport);
2466 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 2467 return;
2468}
2469
2470static void
92d7f7b0 2471lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
dea3101e 2472{
92d7f7b0 2473 struct lpfc_vport *vport = phba->pport;
6fb120a7 2474 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
2e0fef85 2475 int i;
14691150
JS		 2476 struct lpfc_dmabuf *mp;
2477 int rc;
6fb120a7 2478 struct fcf_record *fcf_record;
14691150 2479
92d7f7b0 2480 spin_lock_irq(&phba->hbalock);
2fe165b6 2481 switch (la->UlnkSpeed) {
92d7f7b0
JS		 2482 case LA_1GHZ_LINK:
2483 phba->fc_linkspeed = LA_1GHZ_LINK;
2484 break;
2485 case LA_2GHZ_LINK:
2486 phba->fc_linkspeed = LA_2GHZ_LINK;
2487 break;
2488 case LA_4GHZ_LINK:
2489 phba->fc_linkspeed = LA_4GHZ_LINK;
2490 break;
2491 case LA_8GHZ_LINK:
2492 phba->fc_linkspeed = LA_8GHZ_LINK;
2493 break;
f4b4c68f
JS		 2494 case LA_10GHZ_LINK:
2495 phba->fc_linkspeed = LA_10GHZ_LINK;
2496 break;
92d7f7b0
JS		 2497 default:
2498 phba->fc_linkspeed = LA_UNKNW_LINK;
2499 break;
dea3101e 2500 }
2501
2502 phba->fc_topology = la->topology;
92d7f7b0 2503 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
dea3101e 2504
2505 if (phba->fc_topology == TOPOLOGY_LOOP) {
92d7f7b0 2506 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
dea3101e 2507
6a9c52cf
JS		 2508 /* if npiv is enabled and this adapter supports npiv log
2509 * a message that npiv is not supported in this topology
2510 */
2511 if (phba->cfg_enable_npiv && phba->max_vpi)
495a714c
JS		 2512 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2513 "1309 Link Up Event npiv not supported in loop "
2514 "topology\n");
92d7f7b0 2515 /* Get Loop Map information */
dea3101e 2516 if (la->il)
2e0fef85 2517 vport->fc_flag |= FC_LBIT;
dea3101e 2518
2e0fef85 2519 vport->fc_myDID = la->granted_AL_PA;
dea3101e 2520 i = la->un.lilpBde64.tus.f.bdeSize;
2521
2522 if (i == 0) {
2523 phba->alpa_map[0] = 0;
2524 } else {
e8b62011 2525 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
dea3101e 2526 int numalpa, j, k;
2527 union {
2528 uint8_t pamap[16];
2529 struct {
2530 uint32_t wd1;
2531 uint32_t wd2;
2532 uint32_t wd3;
2533 uint32_t wd4;
2534 } pa;
2535 } un;
2536 numalpa = phba->alpa_map[0];
2537 j = 0;
2538 while (j < numalpa) {
2539 memset(un.pamap, 0, 16);
2540 for (k = 1; j < numalpa; k++) {
2541 un.pamap[k - 1] =
2542 phba->alpa_map[j + 1];
2543 j++;
2544 if (k == 16)
2545 break;
2546 }
2547 /* Link Up Event ALPA map */
2548 lpfc_printf_log(phba,
92d7f7b0
JS		 2549 KERN_WARNING,
2550 LOG_LINK_EVENT,
e8b62011 2551 "1304 Link Up Event "
92d7f7b0
JS		 2552 "ALPA map Data: x%x "
2553 "x%x x%x x%x\n",
92d7f7b0
JS		 2554 un.pa.wd1, un.pa.wd2,
2555 un.pa.wd3, un.pa.wd4);
dea3101e 2556 }
2557 }
2558 }
2559 } else {
92d7f7b0 2560 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
78b2d852 2561 if (phba->max_vpi && phba->cfg_enable_npiv &&
92d7f7b0
JS		 2562 (phba->sli_rev == 3))
2563 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
2564 }
2e0fef85
JS		 2565 vport->fc_myDID = phba->fc_pref_DID;
2566 vport->fc_flag |= FC_LBIT;
dea3101e 2567 }
92d7f7b0 2568 spin_unlock_irq(&phba->hbalock);
dea3101e 2569
2570 lpfc_linkup(phba);
9f1177a3
JS		 2571 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2572 if (!sparam_mbox)
2573 goto out;
2574
2575 rc = lpfc_read_sparam(phba, sparam_mbox, 0);
2576 if (rc) {
2577 mempool_free(sparam_mbox, phba->mbox_mem_pool);
2578 goto out;
2579 }
2580 sparam_mbox->vport = vport;
2581 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
2582 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
2583 if (rc == MBX_NOT_FINISHED) {
2584 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
2585 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2586 kfree(mp);
2587 mempool_free(sparam_mbox, phba->mbox_mem_pool);
2588 goto out;
dea3101e 2589 }
2590
6fb120a7
JS		 2591 if (!(phba->hba_flag & HBA_FCOE_SUPPORT)) {
2592 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2593 if (!cfglink_mbox)
2594 goto out;
2e0fef85 2595 vport->port_state = LPFC_LOCAL_CFG_LINK;
dea3101e 2596 lpfc_config_link(phba, cfglink_mbox);
2e0fef85 2597 cfglink_mbox->vport = vport;
25594c6b 2598 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
0b727fea 2599 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
6fb120a7
JS		 2600 if (rc == MBX_NOT_FINISHED) {
2601 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
2602 goto out;
2603 }
2604 } else {
32b9793f 2605 vport->port_state = LPFC_VPORT_UNKNOWN;
6fb120a7
JS		 2606 /*
2607 * Add the driver's default FCF record at FCF index 0 now. This
2608 * is phase 1 implementation that support FCF index 0 and driver
2609 * defaults.
2610 */
45ed1190 2611 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
6fb120a7
JS		 2612 fcf_record = kzalloc(sizeof(struct fcf_record),
2613 GFP_KERNEL);
2614 if (unlikely(!fcf_record)) {
2615 lpfc_printf_log(phba, KERN_ERR,
2616 LOG_MBOX | LOG_SLI,
b595076a 2617 "2554 Could not allocate memory for "
6fb120a7
JS		 2618 "fcf record\n");
2619 rc = -ENODEV;
2620 goto out;
2621 }
2622
2623 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
2624 LPFC_FCOE_FCF_DEF_INDEX);
2625 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
2626 if (unlikely(rc)) {
2627 lpfc_printf_log(phba, KERN_ERR,
2628 LOG_MBOX | LOG_SLI,
2629 "2013 Could not manually add FCF "
2630 "record 0, status %d\n", rc);
2631 rc = -ENODEV;
2632 kfree(fcf_record);
2633 goto out;
2634 }
2635 kfree(fcf_record);
2636 }
2637 /*
2638 * The driver is expected to do FIP/FCF. Call the port
2639 * and get the FCF Table.
2640 */
32b9793f
JS		 2641 spin_lock_irq(&phba->hbalock);
2642 if (phba->hba_flag & FCF_DISC_INPROGRESS) {
2643 spin_unlock_irq(&phba->hbalock);
2644 return;
2645 }
0c9ab6f5
JS		 2646 /* This is the initial FCF discovery scan */
2647 phba->fcf.fcf_flag |= FCF_INIT_DISC;
32b9793f 2648 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 2649 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
2650 "2778 Start FCF table scan at linkup\n");
0c9ab6f5
JS		 2651 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
2652 LPFC_FCOE_FCF_GET_FIRST);
2653 if (rc) {
2654 spin_lock_irq(&phba->hbalock);
2655 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
2656 spin_unlock_irq(&phba->hbalock);
6fb120a7 2657 goto out;
0c9ab6f5 2658 }
38b92ef8
JS		 2659 /* Reset FCF roundrobin bmask for new discovery */
2660 memset(phba->fcf.fcf_rr_bmask, 0,
2661 sizeof(*phba->fcf.fcf_rr_bmask));
dea3101e 2662 }
6fb120a7
JS		 2663
2664 return;
92d7f7b0
JS		 2665out:
2666 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 2667 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2668 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
2669 vport->port_state, sparam_mbox, cfglink_mbox);
92d7f7b0
JS		 2670 lpfc_issue_clear_la(phba, vport);
2671 return;
dea3101e 2672}
2673
2674static void
84774a4d 2675lpfc_enable_la(struct lpfc_hba *phba)
2e0fef85 2676{
dea3101e 2677 uint32_t control;
2678 struct lpfc_sli *psli = &phba->sli;
2e0fef85 2679 spin_lock_irq(&phba->hbalock);
dea3101e 2680 psli->sli_flag |= LPFC_PROCESS_LA;
3772a991
JS		 2681 if (phba->sli_rev <= LPFC_SLI_REV3) {
2682 control = readl(phba->HCregaddr);
2683 control |= HC_LAINT_ENA;
2684 writel(control, phba->HCregaddr);
2685 readl(phba->HCregaddr); /* flush */
2686 }
2e0fef85 2687 spin_unlock_irq(&phba->hbalock);
dea3101e 2688}
2689
84774a4d
JS		 2690static void
2691lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
2692{
2693 lpfc_linkdown(phba);
2694 lpfc_enable_la(phba);
6fb120a7 2695 lpfc_unregister_unused_fcf(phba);
84774a4d
JS		 2696 /* turn on Link Attention interrupts - no CLEAR_LA needed */
2697}
2698
2699
dea3101e 2700/*
2701 * This routine handles processing a READ_LA mailbox
2702 * command upon completion. It is setup in the LPFC_MBOXQ
2703 * as the completion routine when the command is
2704 * handed off to the SLI layer.
2705 */
2706void
2e0fef85 2707lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 2708{
2e0fef85
JS		 2709 struct lpfc_vport *vport = pmb->vport;
2710 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 2711 READ_LA_VAR *la;
04c68496 2712 MAILBOX_t *mb = &pmb->u.mb;
dea3101e 2713 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2714
0d2b6b83
JS		 2715 /* Unblock ELS traffic */
2716 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 2717 /* Check for error */
2718 if (mb->mbxStatus) {
ed957684 2719 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
e8b62011
JS		 2720 "1307 READ_LA mbox error x%x state x%x\n",
2721 mb->mbxStatus, vport->port_state);
dea3101e 2722 lpfc_mbx_issue_link_down(phba);
2e0fef85 2723 phba->link_state = LPFC_HBA_ERROR;
dea3101e 2724 goto lpfc_mbx_cmpl_read_la_free_mbuf;
2725 }
2726
04c68496 2727 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
dea3101e 2728
2729 memcpy(&phba->alpa_map[0], mp->virt, 128);
2730
2e0fef85 2731 spin_lock_irq(shost->host_lock);
c9f8735b 2732 if (la->pb)
2e0fef85 2733 vport->fc_flag |= FC_BYPASSED_MODE;
c9f8735b 2734 else
2e0fef85
JS		 2735 vport->fc_flag &= ~FC_BYPASSED_MODE;
2736 spin_unlock_irq(shost->host_lock);
c9f8735b 2737
0c287589 2738 if ((phba->fc_eventTag < la->eventTag) ||
92d7f7b0 2739 (phba->fc_eventTag == la->eventTag)) {
dea3101e 2740 phba->fc_stat.LinkMultiEvent++;
2e0fef85 2741 if (la->attType == AT_LINK_UP)
dea3101e 2742 if (phba->fc_eventTag != 0)
2743 lpfc_linkdown(phba);
92d7f7b0 2744 }
dea3101e 2745
2746 phba->fc_eventTag = la->eventTag;
72100cc4 2747 spin_lock_irq(&phba->hbalock);
84774a4d
JS		 2748 if (la->mm)
2749 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
2750 else
2751 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
72100cc4 2752 spin_unlock_irq(&phba->hbalock);
dea3101e 2753
4d9ab994 2754 phba->link_events++;
84774a4d 2755 if (la->attType == AT_LINK_UP && (!la->mm)) {
dea3101e 2756 phba->fc_stat.LinkUp++;
2e0fef85 2757 if (phba->link_flag & LS_LOOPBACK_MODE) {
3163f725 2758 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011
JS		 2759 "1306 Link Up Event in loop back mode "
2760 "x%x received Data: x%x x%x x%x x%x\n",
2761 la->eventTag, phba->fc_eventTag,
2762 la->granted_AL_PA, la->UlnkSpeed,
2763 phba->alpa_map[0]);
5b8bd0c9
JS		 2764 } else {
2765 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 2766 "1303 Link Up Event x%x received "
84774a4d 2767 "Data: x%x x%x x%x x%x x%x x%x %d\n",
e8b62011
JS		 2768 la->eventTag, phba->fc_eventTag,
2769 la->granted_AL_PA, la->UlnkSpeed,
84774a4d
JS		 2770 phba->alpa_map[0],
2771 la->mm, la->fa,
2772 phba->wait_4_mlo_maint_flg);
5b8bd0c9 2773 }
92d7f7b0 2774 lpfc_mbx_process_link_up(phba, la);
84774a4d 2775 } else if (la->attType == AT_LINK_DOWN) {
dea3101e 2776 phba->fc_stat.LinkDown++;
3163f725
JS		 2777 if (phba->link_flag & LS_LOOPBACK_MODE) {
2778 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2779 "1308 Link Down Event in loop back mode "
2780 "x%x received "
2781 "Data: x%x x%x x%x\n",
2782 la->eventTag, phba->fc_eventTag,
2783 phba->pport->port_state, vport->fc_flag);
2784 }
2785 else {
2786 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 2787 "1305 Link Down Event x%x received "
84774a4d
JS		 2788 "Data: x%x x%x x%x x%x x%x\n",
2789 la->eventTag, phba->fc_eventTag,
2790 phba->pport->port_state, vport->fc_flag,
2791 la->mm, la->fa);
2792 }
2793 lpfc_mbx_issue_link_down(phba);
2794 }
2795 if (la->mm && la->attType == AT_LINK_UP) {
2796 if (phba->link_state != LPFC_LINK_DOWN) {
2797 phba->fc_stat.LinkDown++;
2798 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2799 "1312 Link Down Event x%x received "
dea3101e 2800 "Data: x%x x%x x%x\n",
e8b62011 2801 la->eventTag, phba->fc_eventTag,
2e0fef85 2802 phba->pport->port_state, vport->fc_flag);
84774a4d
JS		 2803 lpfc_mbx_issue_link_down(phba);
2804 } else
2805 lpfc_enable_la(phba);
2806
2807 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2808 "1310 Menlo Maint Mode Link up Event x%x rcvd "
2809 "Data: x%x x%x x%x\n",
2810 la->eventTag, phba->fc_eventTag,
2811 phba->pport->port_state, vport->fc_flag);
2812 /*
2813 * The cmnd that triggered this will be waiting for this
2814 * signal.
2815 */
2816 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
2817 if (phba->wait_4_mlo_maint_flg) {
2818 phba->wait_4_mlo_maint_flg = 0;
2819 wake_up_interruptible(&phba->wait_4_mlo_m_q);
3163f725 2820 }
84774a4d
JS		 2821 }
2822
2823 if (la->fa) {
2824 if (la->mm)
2825 lpfc_issue_clear_la(phba, vport);
2826 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
2827 "1311 fa %d\n", la->fa);
dea3101e 2828 }
2829
2830lpfc_mbx_cmpl_read_la_free_mbuf:
2831 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2832 kfree(mp);
2833 mempool_free(pmb, phba->mbox_mem_pool);
2834 return;
2835}
2836
2837/*
2838 * This routine handles processing a REG_LOGIN mailbox
2839 * command upon completion. It is setup in the LPFC_MBOXQ
2840 * as the completion routine when the command is
2841 * handed off to the SLI layer.
2842 */
2843void
2e0fef85 2844lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 2845{
2e0fef85 2846 struct lpfc_vport *vport = pmb->vport;
92d7f7b0 2847 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2e0fef85 2848 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
ffc95493 2849 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 2850
dea3101e 2851 pmb->context1 = NULL;
d439d286 2852 pmb->context2 = NULL;
dea3101e 2853
ffc95493
JS		 2854 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
2855 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
2856
2857 if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
2858 ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
2859 /* We rcvd a rscn after issuing this
2860 * mbox reg login, we may have cycled
2861 * back through the state and be
2862 * back at reg login state so this
2863 * mbox needs to be ignored becase
2864 * there is another reg login in
2865 * proccess.
2866 */
2867 spin_lock_irq(shost->host_lock);
2868 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
2869 spin_unlock_irq(shost->host_lock);
2870 if (phba->sli_rev == LPFC_SLI_REV4)
2871 lpfc_sli4_free_rpi(phba,
2872 pmb->u.mb.un.varRegLogin.rpi);
2873
2874 } else
2875 /* Good status, call state machine */
2876 lpfc_disc_state_machine(vport, ndlp, pmb,
2877 NLP_EVT_CMPL_REG_LOGIN);
2878
dea3101e 2879 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2880 kfree(mp);
2e0fef85 2881 mempool_free(pmb, phba->mbox_mem_pool);
fa4066b6
JS		 2882 /* decrement the node reference count held for this callback
2883 * function.
2884 */
329f9bc7 2885 lpfc_nlp_put(ndlp);
dea3101e 2886
2887 return;
2888}
2889
92d7f7b0
JS		 2890static void
2891lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2892{
04c68496 2893 MAILBOX_t *mb = &pmb->u.mb;
92d7f7b0
JS		 2894 struct lpfc_vport *vport = pmb->vport;
2895 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2896
2897 switch (mb->mbxStatus) {
2898 case 0x0011:
2899 case 0x0020:
e8b62011
JS		 2900 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2901 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
2902 mb->mbxStatus);
92d7f7b0 2903 break;
78730cfe
JS		 2904 /* If VPI is busy, reset the HBA */
2905 case 0x9700:
2906 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
2907 "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
2908 vport->vpi, mb->mbxStatus);
2909 if (!(phba->pport->load_flag & FC_UNLOADING))
2910 lpfc_workq_post_event(phba, NULL, NULL,
2911 LPFC_EVT_RESET_HBA);
92d7f7b0 2912 }
72100cc4 2913 spin_lock_irq(shost->host_lock);
c868595d 2914 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
1987807d 2915 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
72100cc4 2916 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS		 2917 vport->unreg_vpi_cmpl = VPORT_OK;
2918 mempool_free(pmb, phba->mbox_mem_pool);
2919 /*
2920 * This shost reference might have been taken at the beginning of
2921 * lpfc_vport_delete()
2922 */
1c6f4ef5 2923 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
92d7f7b0
JS		 2924 scsi_host_put(shost);
2925}
2926
d7c255b2 2927int
92d7f7b0
JS		 2928lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
2929{
2930 struct lpfc_hba *phba = vport->phba;
2931 LPFC_MBOXQ_t *mbox;
2932 int rc;
2933
2934 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2935 if (!mbox)
d7c255b2 2936 return 1;
92d7f7b0
JS		 2937
2938 lpfc_unreg_vpi(phba, vport->vpi, mbox);
2939 mbox->vport = vport;
2940 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
0b727fea 2941 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
92d7f7b0 2942 if (rc == MBX_NOT_FINISHED) {
e8b62011
JS		 2943 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
2944 "1800 Could not issue unreg_vpi\n");
92d7f7b0
JS		 2945 mempool_free(mbox, phba->mbox_mem_pool);
2946 vport->unreg_vpi_cmpl = VPORT_ERROR;
d7c255b2 2947 return rc;
92d7f7b0 2948 }
d7c255b2 2949 return 0;
92d7f7b0
JS		 2950}
2951
2952static void
2953lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2954{
2955 struct lpfc_vport *vport = pmb->vport;
2956 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
04c68496 2957 MAILBOX_t *mb = &pmb->u.mb;
92d7f7b0
JS		 2958
2959 switch (mb->mbxStatus) {
2960 case 0x0011:
2961 case 0x9601:
2962 case 0x9602:
e8b62011
JS		 2963 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2964 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
2965 mb->mbxStatus);
92d7f7b0
JS		 2966 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2967 spin_lock_irq(shost->host_lock);
2968 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2969 spin_unlock_irq(shost->host_lock);
2970 vport->fc_myDID = 0;
2971 goto out;
2972 }
92d7f7b0 2973
72100cc4 2974 spin_lock_irq(shost->host_lock);
c868595d 2975 vport->vpi_state |= LPFC_VPI_REGISTERED;
695a814e 2976 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
72100cc4 2977 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS		 2978 vport->num_disc_nodes = 0;
2979 /* go thru NPR list and issue ELS PLOGIs */
2980 if (vport->fc_npr_cnt)
2981 lpfc_els_disc_plogi(vport);
2982
2983 if (!vport->num_disc_nodes) {
2984 spin_lock_irq(shost->host_lock);
2985 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2986 spin_unlock_irq(shost->host_lock);
2987 lpfc_can_disctmo(vport);
2988 }
2989 vport->port_state = LPFC_VPORT_READY;
2990
2991out:
2992 mempool_free(pmb, phba->mbox_mem_pool);
2993 return;
2994}
2995
21e9a0a5
JS		 2996/**
2997 * lpfc_create_static_vport - Read HBA config region to create static vports.
2998 * @phba: pointer to lpfc hba data structure.
2999 *
3000 * This routine issue a DUMP mailbox command for config region 22 to get
3001 * the list of static vports to be created. The function create vports
3002 * based on the information returned from the HBA.
3003 **/
3004void
3005lpfc_create_static_vport(struct lpfc_hba *phba)
3006{
3007 LPFC_MBOXQ_t *pmb = NULL;
3008 MAILBOX_t *mb;
3009 struct static_vport_info *vport_info;
1c6834a7 3010 int rc = 0, i;
21e9a0a5
JS		 3011 struct fc_vport_identifiers vport_id;
3012 struct fc_vport *new_fc_vport;
3013 struct Scsi_Host *shost;
3014 struct lpfc_vport *vport;
3015 uint16_t offset = 0;
3016 uint8_t *vport_buff;
1c6834a7
JS		 3017 struct lpfc_dmabuf *mp;
3018 uint32_t byte_count = 0;
21e9a0a5
JS		 3019
3020 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3021 if (!pmb) {
3022 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3023 "0542 lpfc_create_static_vport failed to"
3024 " allocate mailbox memory\n");
3025 return;
3026 }
3027
3028 mb = &pmb->u.mb;
3029
3030 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
3031 if (!vport_info) {
3032 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3033 "0543 lpfc_create_static_vport failed to"
3034 " allocate vport_info\n");
3035 mempool_free(pmb, phba->mbox_mem_pool);
3036 return;
3037 }
3038
3039 vport_buff = (uint8_t *) vport_info;
3040 do {
1c6834a7
JS		 3041 if (lpfc_dump_static_vport(phba, pmb, offset))
3042 goto out;
3043
21e9a0a5
JS		 3044 pmb->vport = phba->pport;
3045 rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO);
3046
3047 if ((rc != MBX_SUCCESS) || mb->mbxStatus) {
3048 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3049 "0544 lpfc_create_static_vport failed to"
3050 " issue dump mailbox command ret 0x%x "
3051 "status 0x%x\n",
3052 rc, mb->mbxStatus);
3053 goto out;
3054 }
3055
1c6834a7
JS		 3056 if (phba->sli_rev == LPFC_SLI_REV4) {
3057 byte_count = pmb->u.mqe.un.mb_words[5];
3058 mp = (struct lpfc_dmabuf *) pmb->context2;
3059 if (byte_count > sizeof(struct static_vport_info) -
3060 offset)
3061 byte_count = sizeof(struct static_vport_info)
3062 - offset;
3063 memcpy(vport_buff + offset, mp->virt, byte_count);
3064 offset += byte_count;
3065 } else {
3066 if (mb->un.varDmp.word_cnt >
3067 sizeof(struct static_vport_info) - offset)
3068 mb->un.varDmp.word_cnt =
3069 sizeof(struct static_vport_info)
3070 - offset;
3071 byte_count = mb->un.varDmp.word_cnt;
3072 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
3073 vport_buff + offset,
3074 byte_count);
3075
3076 offset += byte_count;
3077 }
21e9a0a5 3078
1c6834a7 3079 } while (byte_count &&
21e9a0a5
JS		 3080 offset < sizeof(struct static_vport_info));
3081
3082
3083 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
3084 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
3085 != VPORT_INFO_REV)) {
3086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3087 "0545 lpfc_create_static_vport bad"
3088 " information header 0x%x 0x%x\n",
3089 le32_to_cpu(vport_info->signature),
3090 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
3091
3092 goto out;
3093 }
3094
3095 shost = lpfc_shost_from_vport(phba->pport);
3096
3097 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
3098 memset(&vport_id, 0, sizeof(vport_id));
3099 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
3100 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
3101 if (!vport_id.port_name || !vport_id.node_name)
3102 continue;
3103
3104 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
3105 vport_id.vport_type = FC_PORTTYPE_NPIV;
3106 vport_id.disable = false;
3107 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
3108
3109 if (!new_fc_vport) {
3110 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3111 "0546 lpfc_create_static_vport failed to"
e4e74273 3112 " create vport\n");
21e9a0a5
JS		 3113 continue;
3114 }
3115
3116 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
3117 vport->vport_flag |= STATIC_VPORT;
3118 }
3119
3120out:
21e9a0a5 3121 kfree(vport_info);
1c6834a7
JS		 3122 if (rc != MBX_TIMEOUT) {
3123 if (pmb->context2) {
3124 mp = (struct lpfc_dmabuf *) pmb->context2;
3125 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3126 kfree(mp);
3127 }
21e9a0a5 3128 mempool_free(pmb, phba->mbox_mem_pool);
1c6834a7 3129 }
21e9a0a5
JS		 3130
3131 return;
3132}
3133
dea3101e 3134/*
3135 * This routine handles processing a Fabric REG_LOGIN mailbox
3136 * command upon completion. It is setup in the LPFC_MBOXQ
3137 * as the completion routine when the command is
3138 * handed off to the SLI layer.
3139 */
3140void
2e0fef85 3141lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 3142{
92d7f7b0 3143 struct lpfc_vport *vport = pmb->vport;
21e9a0a5 3144 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85 3145 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
92d7f7b0 3146 struct lpfc_nodelist *ndlp;
dea3101e 3147
549e55cd 3148 ndlp = (struct lpfc_nodelist *) pmb->context2;
329f9bc7
JS		 3149 pmb->context1 = NULL;
3150 pmb->context2 = NULL;
d439d286 3151
dea3101e 3152 if (mb->mbxStatus) {
21e9a0a5
JS		 3153 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
3154 "0258 Register Fabric login error: 0x%x\n",
3155 mb->mbxStatus);
dea3101e 3156 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3157 kfree(mp);
329f9bc7 3158 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 3159
92d7f7b0
JS		 3160 if (phba->fc_topology == TOPOLOGY_LOOP) {
3161 /* FLOGI failed, use loop map to make discovery list */
3162 lpfc_disc_list_loopmap(vport);
3163
3164 /* Start discovery */
3165 lpfc_disc_start(vport);
e47c9093
JS		 3166 /* Decrement the reference count to ndlp after the
3167 * reference to the ndlp are done.
3168 */
3169 lpfc_nlp_put(ndlp);
92d7f7b0
JS		 3170 return;
3171 }
3172
3173 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e47c9093
JS		 3174 /* Decrement the reference count to ndlp after the reference
3175 * to the ndlp are done.
3176 */
3177 lpfc_nlp_put(ndlp);
dea3101e 3178 return;
3179 }
3180
dea3101e 3181 ndlp->nlp_rpi = mb->un.varWords[0];
21e9a0a5 3182 ndlp->nlp_flag |= NLP_RPI_VALID;
dea3101e 3183 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 3184 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 3185
2e0fef85 3186 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
4b40c59e
JS		 3187 /* when physical port receive logo donot start
3188 * vport discovery */
3189 if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
3190 lpfc_start_fdiscs(phba);
3191 else
3192 vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
92d7f7b0 3193 lpfc_do_scr_ns_plogi(phba, vport);
dea3101e 3194 }
3195
3196 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3197 kfree(mp);
329f9bc7 3198 mempool_free(pmb, phba->mbox_mem_pool);
e47c9093
JS		 3199
3200 /* Drop the reference count from the mbox at the end after
3201 * all the current reference to the ndlp have been done.
3202 */
3203 lpfc_nlp_put(ndlp);
dea3101e 3204 return;
3205}
3206
3207/*
3208 * This routine handles processing a NameServer REG_LOGIN mailbox
3209 * command upon completion. It is setup in the LPFC_MBOXQ
3210 * as the completion routine when the command is
3211 * handed off to the SLI layer.
3212 */
3213void
2e0fef85 3214lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 3215{
21e9a0a5 3216 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85
JS		 3217 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3218 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3219 struct lpfc_vport *vport = pmb->vport;
dea3101e 3220
d439d286
JS		 3221 pmb->context1 = NULL;
3222 pmb->context2 = NULL;
3223
dea3101e 3224 if (mb->mbxStatus) {
92d7f7b0 3225out:
21e9a0a5
JS		 3226 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3227 "0260 Register NameServer error: 0x%x\n",
3228 mb->mbxStatus);
fa4066b6
JS		 3229 /* decrement the node reference count held for this
3230 * callback function.
3231 */
329f9bc7 3232 lpfc_nlp_put(ndlp);
dea3101e 3233 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3234 kfree(mp);
de0c5b32 3235 mempool_free(pmb, phba->mbox_mem_pool);
87af33fe
JS		 3236
3237 /* If no other thread is using the ndlp, free it */
3238 lpfc_nlp_not_used(ndlp);
dea3101e 3239
92d7f7b0
JS		 3240 if (phba->fc_topology == TOPOLOGY_LOOP) {
3241 /*
3242 * RegLogin failed, use loop map to make discovery
3243 * list
3244 */
3245 lpfc_disc_list_loopmap(vport);
dea3101e 3246
92d7f7b0
JS		 3247 /* Start discovery */
3248 lpfc_disc_start(vport);
3249 return;
3250 }
3251 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
dea3101e 3252 return;
3253 }
3254
dea3101e 3255 ndlp->nlp_rpi = mb->un.varWords[0];
21e9a0a5 3256 ndlp->nlp_flag |= NLP_RPI_VALID;
dea3101e 3257 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 3258 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 3259
2e0fef85
JS		 3260 if (vport->port_state < LPFC_VPORT_READY) {
3261 /* Link up discovery requires Fabric registration. */
92d7f7b0
JS		 3262 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
3263 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
3264 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
3265 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
3266 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
3267
3268 /* Issue SCR just before NameServer GID_FT Query */
3269 lpfc_issue_els_scr(vport, SCR_DID, 0);
dea3101e 3270 }
3271
2e0fef85 3272 vport->fc_ns_retry = 0;
dea3101e 3273 /* Good status, issue CT Request to NameServer */
92d7f7b0 3274 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
dea3101e 3275 /* Cannot issue NameServer Query, so finish up discovery */
92d7f7b0 3276 goto out;
dea3101e 3277 }
3278
fa4066b6
JS		 3279 /* decrement the node reference count held for this
3280 * callback function.
3281 */
329f9bc7 3282 lpfc_nlp_put(ndlp);
dea3101e 3283 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3284 kfree(mp);
2e0fef85 3285 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 3286
3287 return;
3288}
3289
3290static void
2e0fef85 3291lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 3292{
2e0fef85
JS		 3293 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3294 struct fc_rport *rport;
dea3101e 3295 struct lpfc_rport_data *rdata;
3296 struct fc_rport_identifiers rport_ids;
2e0fef85 3297 struct lpfc_hba *phba = vport->phba;
dea3101e 3298
3299 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 3300 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
3301 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e 3302 rport_ids.port_id = ndlp->nlp_DID;
3303 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e 3304
329f9bc7
JS		 3305 /*
3306 * We leave our node pointer in rport->dd_data when we unregister a
3307 * FCP target port. But fc_remote_port_add zeros the space to which
3308 * rport->dd_data points. So, if we're reusing a previously
3309 * registered port, drop the reference that we took the last time we
3310 * registered the port.
3311 */
3312 if (ndlp->rport && ndlp->rport->dd_data &&
e47c9093 3313 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
329f9bc7 3314 lpfc_nlp_put(ndlp);
858c9f6c
JS		 3315
3316 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
3317 "rport add: did:x%x flg:x%x type x%x",
3318 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3319
2e0fef85 3320 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
329f9bc7 3321 if (!rport || !get_device(&rport->dev)) {
dea3101e 3322 dev_printk(KERN_WARNING, &phba->pcidev->dev,
3323 "Warning: fc_remote_port_add failed\n");
3324 return;
3325 }
3326
3327 /* initialize static port data */
3328 rport->maxframe_size = ndlp->nlp_maxframe;
3329 rport->supported_classes = ndlp->nlp_class_sup;
dea3101e 3330 rdata = rport->dd_data;
329f9bc7 3331 rdata->pnode = lpfc_nlp_get(ndlp);
23dc04f1
JSEC		 3332
3333 if (ndlp->nlp_type & NLP_FCP_TARGET)
3334 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
3335 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
3336 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
3337
3338
3339 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
3340 fc_remote_port_rolechg(rport, rport_ids.roles);
3341
071fbd3d 3342 if ((rport->scsi_target_id != -1) &&
92d7f7b0 3343 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
071fbd3d
JS		 3344 ndlp->nlp_sid = rport->scsi_target_id;
3345 }
19a7b4ae
JSEC		 3346 return;
3347}
3348
3349static void
2e0fef85 3350lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
19a7b4ae
JSEC		 3351{
3352 struct fc_rport *rport = ndlp->rport;
c01f3208 3353
858c9f6c
JS		 3354 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
3355 "rport delete: did:x%x flg:x%x type x%x",
3356 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3357
19a7b4ae 3358 fc_remote_port_delete(rport);
dea3101e 3359
3360 return;
3361}
3362
de0c5b32 3363static void
2e0fef85 3364lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
dea3101e 3365{
2e0fef85
JS		 3366 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3367
3368 spin_lock_irq(shost->host_lock);
de0c5b32
JS		 3369 switch (state) {
3370 case NLP_STE_UNUSED_NODE:
2e0fef85 3371 vport->fc_unused_cnt += count;
de0c5b32
JS		 3372 break;
3373 case NLP_STE_PLOGI_ISSUE:
2e0fef85 3374 vport->fc_plogi_cnt += count;
de0c5b32
JS		 3375 break;
3376 case NLP_STE_ADISC_ISSUE:
2e0fef85 3377 vport->fc_adisc_cnt += count;
dea3101e 3378 break;
de0c5b32 3379 case NLP_STE_REG_LOGIN_ISSUE:
2e0fef85 3380 vport->fc_reglogin_cnt += count;
de0c5b32
JS		 3381 break;
3382 case NLP_STE_PRLI_ISSUE:
2e0fef85 3383 vport->fc_prli_cnt += count;
de0c5b32
JS		 3384 break;
3385 case NLP_STE_UNMAPPED_NODE:
2e0fef85 3386 vport->fc_unmap_cnt += count;
de0c5b32
JS		 3387 break;
3388 case NLP_STE_MAPPED_NODE:
2e0fef85 3389 vport->fc_map_cnt += count;
de0c5b32
JS		 3390 break;
3391 case NLP_STE_NPR_NODE:
2e0fef85 3392 vport->fc_npr_cnt += count;
de0c5b32
JS		 3393 break;
3394 }
2e0fef85 3395 spin_unlock_irq(shost->host_lock);
de0c5b32 3396}
66a9ed66 3397
de0c5b32 3398static void
2e0fef85 3399lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
de0c5b32
JS		 3400 int old_state, int new_state)
3401{
2e0fef85
JS		 3402 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3403
de0c5b32 3404 if (new_state == NLP_STE_UNMAPPED_NODE) {
de0c5b32
JS		 3405 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
3406 ndlp->nlp_type |= NLP_FC_NODE;
3407 }
3408 if (new_state == NLP_STE_MAPPED_NODE)
3409 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
3410 if (new_state == NLP_STE_NPR_NODE)
3411 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
3412
3413 /* Transport interface */
3414 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
3415 old_state == NLP_STE_UNMAPPED_NODE)) {
2e0fef85
JS		 3416 vport->phba->nport_event_cnt++;
3417 lpfc_unregister_remote_port(ndlp);
de0c5b32 3418 }
dea3101e 3419
de0c5b32
JS		 3420 if (new_state == NLP_STE_MAPPED_NODE ||
3421 new_state == NLP_STE_UNMAPPED_NODE) {
2e0fef85 3422 vport->phba->nport_event_cnt++;
858c9f6c
JS		 3423 /*
3424 * Tell the fc transport about the port, if we haven't
3425 * already. If we have, and it's a scsi entity, be
3426 * sure to unblock any attached scsi devices
3427 */
3428 lpfc_register_remote_port(vport, ndlp);
de0c5b32 3429 }
ea2151b4
JS		 3430 if ((new_state == NLP_STE_MAPPED_NODE) &&
3431 (vport->stat_data_enabled)) {
3432 /*
3433 * A new target is discovered, if there is no buffer for
3434 * statistical data collection allocate buffer.
3435 */
3436 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
3437 sizeof(struct lpfc_scsicmd_bkt),
3438 GFP_KERNEL);
3439
3440 if (!ndlp->lat_data)
3441 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
3442 "0286 lpfc_nlp_state_cleanup failed to "
3443 "allocate statistical data buffer DID "
3444 "0x%x\n", ndlp->nlp_DID);
3445 }
858c9f6c
JS		 3446 /*
3447 * if we added to Mapped list, but the remote port
3448 * registration failed or assigned a target id outside
3449 * our presentable range - move the node to the
3450 * Unmapped List
3451 */
de0c5b32
JS		 3452 if (new_state == NLP_STE_MAPPED_NODE &&
3453 (!ndlp->rport ||
3454 ndlp->rport->scsi_target_id == -1 ||
3455 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
2e0fef85 3456 spin_lock_irq(shost->host_lock);
de0c5b32 3457 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
2e0fef85
JS		 3458 spin_unlock_irq(shost->host_lock);
3459 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 3460 }
de0c5b32
JS		 3461}
3462
685f0bf7
JS		 3463static char *
3464lpfc_nlp_state_name(char *buffer, size_t size, int state)
3465{
3466 static char *states[] = {
3467 [NLP_STE_UNUSED_NODE] = "UNUSED",
3468 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
3469 [NLP_STE_ADISC_ISSUE] = "ADISC",
3470 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
3471 [NLP_STE_PRLI_ISSUE] = "PRLI",
3472 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
3473 [NLP_STE_MAPPED_NODE] = "MAPPED",
3474 [NLP_STE_NPR_NODE] = "NPR",
3475 };
3476
311464ec 3477 if (state < NLP_STE_MAX_STATE && states[state])
685f0bf7
JS		 3478 strlcpy(buffer, states[state], size);
3479 else
3480 snprintf(buffer, size, "unknown (%d)", state);
3481 return buffer;
3482}
3483
de0c5b32 3484void
2e0fef85
JS		 3485lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3486 int state)
de0c5b32 3487{
2e0fef85 3488 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
de0c5b32 3489 int old_state = ndlp->nlp_state;
685f0bf7 3490 char name1[16], name2[16];
de0c5b32 3491
e8b62011
JS		 3492 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3493 "0904 NPort state transition x%06x, %s -> %s\n",
3494 ndlp->nlp_DID,
3495 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
3496 lpfc_nlp_state_name(name2, sizeof(name2), state));
858c9f6c
JS		 3497
3498 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
3499 "node statechg did:x%x old:%d ste:%d",
3500 ndlp->nlp_DID, old_state, state);
3501
de0c5b32 3502 if (old_state == NLP_STE_NPR_NODE &&
de0c5b32 3503 state != NLP_STE_NPR_NODE)
2e0fef85 3504 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32
JS		 3505 if (old_state == NLP_STE_UNMAPPED_NODE) {
3506 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
3507 ndlp->nlp_type &= ~NLP_FC_NODE;
3508 }
3509
685f0bf7 3510 if (list_empty(&ndlp->nlp_listp)) {
2e0fef85
JS		 3511 spin_lock_irq(shost->host_lock);
3512 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
3513 spin_unlock_irq(shost->host_lock);
685f0bf7 3514 } else if (old_state)
2e0fef85 3515 lpfc_nlp_counters(vport, old_state, -1);
de0c5b32
JS		 3516
3517 ndlp->nlp_state = state;
2e0fef85
JS		 3518 lpfc_nlp_counters(vport, state, 1);
3519 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
de0c5b32
JS		 3520}
3521
e47c9093
JS		 3522void
3523lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3524{
3525 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3526
3527 if (list_empty(&ndlp->nlp_listp)) {
3528 spin_lock_irq(shost->host_lock);
3529 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
3530 spin_unlock_irq(shost->host_lock);
3531 }
3532}
3533
de0c5b32 3534void
2e0fef85 3535lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 3536{
2e0fef85
JS		 3537 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3538
0d2b6b83 3539 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32 3540 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2e0fef85
JS		 3541 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
3542 spin_lock_irq(shost->host_lock);
685f0bf7 3543 list_del_init(&ndlp->nlp_listp);
2e0fef85 3544 spin_unlock_irq(shost->host_lock);
858c9f6c 3545 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
e47c9093
JS		 3546 NLP_STE_UNUSED_NODE);
3547}
3548
4d9db01e 3549static void
e47c9093
JS		 3550lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3551{
0d2b6b83 3552 lpfc_cancel_retry_delay_tmo(vport, ndlp);
e47c9093
JS		 3553 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
3554 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
3555 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
3556 NLP_STE_UNUSED_NODE);
3557}
109f6ed0 3558/**
3621a710 3559 * lpfc_initialize_node - Initialize all fields of node object
109f6ed0
JS		 3560 * @vport: Pointer to Virtual Port object.
3561 * @ndlp: Pointer to FC node object.
3562 * @did: FC_ID of the node.
a257bf90
JS		 3563 *
3564 * This function is always called when node object need to be initialized.
3565 * It initializes all the fields of the node object. Although the reference
3566 * to phba from @ndlp can be obtained indirectly through it's reference to
3567 * @vport, a direct reference to phba is taken here by @ndlp. This is due
3568 * to the life-span of the @ndlp might go beyond the existence of @vport as
3569 * the final release of ndlp is determined by its reference count. And, the
3570 * operation on @ndlp needs the reference to phba.
109f6ed0
JS		 3571 **/
3572static inline void
3573lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3574 uint32_t did)
3575{
3576 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
3577 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
3578 init_timer(&ndlp->nlp_delayfunc);
3579 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
3580 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
3581 ndlp->nlp_DID = did;
3582 ndlp->vport = vport;
a257bf90 3583 ndlp->phba = vport->phba;
109f6ed0
JS		 3584 ndlp->nlp_sid = NLP_NO_SID;
3585 kref_init(&ndlp->kref);
3586 NLP_INT_NODE_ACT(ndlp);
3587 atomic_set(&ndlp->cmd_pending, 0);
7dc517df 3588 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
109f6ed0 3589}
e47c9093
JS		 3590
3591struct lpfc_nodelist *
3592lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3593 int state)
3594{
3595 struct lpfc_hba *phba = vport->phba;
3596 uint32_t did;
3597 unsigned long flags;
3598
3599 if (!ndlp)
3600 return NULL;
3601
3602 spin_lock_irqsave(&phba->ndlp_lock, flags);
3603 /* The ndlp should not be in memory free mode */
3604 if (NLP_CHK_FREE_REQ(ndlp)) {
3605 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3606 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3607 "0277 lpfc_enable_node: ndlp:x%p "
3608 "usgmap:x%x refcnt:%d\n",
3609 (void *)ndlp, ndlp->nlp_usg_map,
3610 atomic_read(&ndlp->kref.refcount));
3611 return NULL;
3612 }
3613 /* The ndlp should not already be in active mode */
3614 if (NLP_CHK_NODE_ACT(ndlp)) {
3615 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3616 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3617 "0278 lpfc_enable_node: ndlp:x%p "
3618 "usgmap:x%x refcnt:%d\n",
3619 (void *)ndlp, ndlp->nlp_usg_map,
3620 atomic_read(&ndlp->kref.refcount));
3621 return NULL;
3622 }
3623
3624 /* Keep the original DID */
3625 did = ndlp->nlp_DID;
3626
3627 /* re-initialize ndlp except of ndlp linked list pointer */
3628 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
3629 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
109f6ed0 3630 lpfc_initialize_node(vport, ndlp, did);
e47c9093
JS		 3631
3632 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3633
3634 if (state != NLP_STE_UNUSED_NODE)
3635 lpfc_nlp_set_state(vport, ndlp, state);
3636
3637 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
3638 "node enable: did:x%x",
3639 ndlp->nlp_DID, 0, 0);
3640 return ndlp;
de0c5b32
JS		 3641}
3642
3643void
2e0fef85 3644lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 3645{
87af33fe 3646 /*
fa4066b6 3647 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
87af33fe 3648 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
fa4066b6
JS		 3649 * the ndlp from the vport. The ndlp marked as UNUSED on the list
3650 * until ALL other outstanding threads have completed. We check
3651 * that the ndlp not already in the UNUSED state before we proceed.
87af33fe 3652 */
fa4066b6
JS		 3653 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3654 return;
51ef4c26 3655 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
87af33fe 3656 lpfc_nlp_put(ndlp);
98c9ea5c 3657 return;
dea3101e 3658}
3659
3660/*
3661 * Start / ReStart rescue timer for Discovery / RSCN handling
3662 */
3663void
2e0fef85 3664lpfc_set_disctmo(struct lpfc_vport *vport)
dea3101e 3665{
2e0fef85
JS		 3666 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3667 struct lpfc_hba *phba = vport->phba;
dea3101e 3668 uint32_t tmo;
3669
2e0fef85 3670 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
025dfdaf 3671 /* For FAN, timeout should be greater than edtov */
c9f8735b
JW		 3672 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
3673 } else {
025dfdaf 3674 /* Normal discovery timeout should be > than ELS/CT timeout
c9f8735b
JW		 3675 * FC spec states we need 3 * ratov for CT requests
3676 */
3677 tmo = ((phba->fc_ratov * 3) + 3);
3678 }
dea3101e 3679
858c9f6c
JS		 3680
3681 if (!timer_pending(&vport->fc_disctmo)) {
3682 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3683 "set disc timer: tmo:x%x state:x%x flg:x%x",
3684 tmo, vport->port_state, vport->fc_flag);
3685 }
3686
2e0fef85
JS		 3687 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
3688 spin_lock_irq(shost->host_lock);
3689 vport->fc_flag |= FC_DISC_TMO;
3690 spin_unlock_irq(shost->host_lock);
dea3101e 3691
3692 /* Start Discovery Timer state <hba_state> */
e8b62011
JS		 3693 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3694 "0247 Start Discovery Timer state x%x "
3695 "Data: x%x x%lx x%x x%x\n",
3696 vport->port_state, tmo,
3697 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
3698 vport->fc_adisc_cnt);
dea3101e 3699
3700 return;
3701}
3702
3703/*
3704 * Cancel rescue timer for Discovery / RSCN handling
3705 */
3706int
2e0fef85 3707lpfc_can_disctmo(struct lpfc_vport *vport)
dea3101e 3708{
2e0fef85 3709 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85
JS		 3710 unsigned long iflags;
3711
858c9f6c
JS		 3712 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3713 "can disc timer: state:x%x rtry:x%x flg:x%x",
3714 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
3715
dea3101e 3716 /* Turn off discovery timer if its running */
2e0fef85
JS		 3717 if (vport->fc_flag & FC_DISC_TMO) {
3718 spin_lock_irqsave(shost->host_lock, iflags);
3719 vport->fc_flag &= ~FC_DISC_TMO;
3720 spin_unlock_irqrestore(shost->host_lock, iflags);
3721 del_timer_sync(&vport->fc_disctmo);
3722 spin_lock_irqsave(&vport->work_port_lock, iflags);
3723 vport->work_port_events &= ~WORKER_DISC_TMO;
3724 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
dea3101e 3725 }
3726
3727 /* Cancel Discovery Timer state <hba_state> */
e8b62011
JS		 3728 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3729 "0248 Cancel Discovery Timer state x%x "
3730 "Data: x%x x%x x%x\n",
3731 vport->port_state, vport->fc_flag,
3732 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
2fe165b6 3733 return 0;
dea3101e 3734}
3735
3736/*
3737 * Check specified ring for outstanding IOCB on the SLI queue
3738 * Return true if iocb matches the specified nport
3739 */
3740int
2e0fef85
JS		 3741lpfc_check_sli_ndlp(struct lpfc_hba *phba,
3742 struct lpfc_sli_ring *pring,
3743 struct lpfc_iocbq *iocb,
3744 struct lpfc_nodelist *ndlp)
dea3101e 3745{
2e0fef85
JS		 3746 struct lpfc_sli *psli = &phba->sli;
3747 IOCB_t *icmd = &iocb->iocb;
92d7f7b0
JS		 3748 struct lpfc_vport *vport = ndlp->vport;
3749
3750 if (iocb->vport != vport)
3751 return 0;
3752
dea3101e 3753 if (pring->ringno == LPFC_ELS_RING) {
3754 switch (icmd->ulpCommand) {
3755 case CMD_GEN_REQUEST64_CR:
21e9a0a5 3756 if (iocb->context_un.ndlp == ndlp)
2fe165b6 3757 return 1;
dea3101e 3758 case CMD_ELS_REQUEST64_CR:
10d4e957
JS		 3759 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
3760 return 1;
dea3101e 3761 case CMD_XMIT_ELS_RSP64_CX:
3762 if (iocb->context1 == (uint8_t *) ndlp)
2fe165b6 3763 return 1;
dea3101e 3764 }
a4bc3379 3765 } else if (pring->ringno == psli->extra_ring) {
dea3101e 3766
3767 } else if (pring->ringno == psli->fcp_ring) {
3768 /* Skip match check if waiting to relogin to FCP target */
3769 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
92d7f7b0 3770 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
2fe165b6 3771 return 0;
dea3101e 3772 }
3773 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
2fe165b6 3774 return 1;
dea3101e 3775 }
3776 } else if (pring->ringno == psli->next_ring) {
3777
3778 }
2fe165b6 3779 return 0;
dea3101e 3780}
3781
3782/*
3783 * Free resources / clean up outstanding I/Os
3784 * associated with nlp_rpi in the LPFC_NODELIST entry.
3785 */
3786static int
2e0fef85 3787lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 3788{
2534ba75 3789 LIST_HEAD(completions);
dea3101e 3790 struct lpfc_sli *psli;
3791 struct lpfc_sli_ring *pring;
3792 struct lpfc_iocbq *iocb, *next_iocb;
6a9c52cf 3793 uint32_t i;
dea3101e 3794
92d7f7b0
JS		 3795 lpfc_fabric_abort_nport(ndlp);
3796
dea3101e 3797 /*
3798 * Everything that matches on txcmplq will be returned
3799 * by firmware with a no rpi error.
3800 */
3801 psli = &phba->sli;
21e9a0a5 3802 if (ndlp->nlp_flag & NLP_RPI_VALID) {
dea3101e 3803 /* Now process each ring */
3804 for (i = 0; i < psli->num_rings; i++) {
3805 pring = &psli->ring[i];
3806
2e0fef85 3807 spin_lock_irq(&phba->hbalock);
dea3101e 3808 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
2e0fef85 3809 list) {
dea3101e 3810 /*
3811 * Check to see if iocb matches the nport we are
3812 * looking for
3813 */
92d7f7b0
JS		 3814 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
3815 ndlp))) {
dea3101e 3816 /* It matches, so deque and call compl
3817 with an error */
2534ba75
JS		 3818 list_move_tail(&iocb->list,
3819 &completions);
dea3101e 3820 pring->txq_cnt--;
dea3101e 3821 }
3822 }
2e0fef85 3823 spin_unlock_irq(&phba->hbalock);
dea3101e 3824 }
3825 }
2534ba75 3826
a257bf90
JS		 3827 /* Cancel all the IOCBs from the completions list */
3828 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3829 IOERR_SLI_ABORTED);
2534ba75 3830
2fe165b6 3831 return 0;
dea3101e 3832}
3833
3834/*
3835 * Free rpi associated with LPFC_NODELIST entry.
3836 * This routine is called from lpfc_freenode(), when we are removing
3837 * a LPFC_NODELIST entry. It is also called if the driver initiates a
3838 * LOGO that completes successfully, and we are waiting to PLOGI back
3839 * to the remote NPort. In addition, it is called after we receive
3840 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
3841 * we are waiting to PLOGI back to the remote NPort.
3842 */
3843int
2e0fef85 3844lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 3845{
2e0fef85
JS		 3846 struct lpfc_hba *phba = vport->phba;
3847 LPFC_MBOXQ_t *mbox;
dea3101e 3848 int rc;
3849
21e9a0a5 3850 if (ndlp->nlp_flag & NLP_RPI_VALID) {
2e0fef85
JS		 3851 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3852 if (mbox) {
92d7f7b0 3853 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
ed957684 3854 mbox->vport = vport;
92d7f7b0 3855 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 3856 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
dea3101e 3857 if (rc == MBX_NOT_FINISHED)
2e0fef85 3858 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 3859 }
dea3101e 3860 lpfc_no_rpi(phba, ndlp);
d7c47992 3861
dea3101e 3862 ndlp->nlp_rpi = 0;
21e9a0a5 3863 ndlp->nlp_flag &= ~NLP_RPI_VALID;
0c287589 3864 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
dea3101e 3865 return 1;
3866 }
3867 return 0;
3868}
3869
ecfd03c6
JS		 3870/**
3871 * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
3872 * @phba: pointer to lpfc hba data structure.
3873 *
3874 * This routine is invoked to unregister all the currently registered RPIs
3875 * to the HBA.
3876 **/
3877void
3878lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
3879{
3880 struct lpfc_vport **vports;
3881 struct lpfc_nodelist *ndlp;
3882 struct Scsi_Host *shost;
3883 int i;
3884
3885 vports = lpfc_create_vport_work_array(phba);
3886 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3887 shost = lpfc_shost_from_vport(vports[i]);
3888 spin_lock_irq(shost->host_lock);
3889 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
0c9ab6f5
JS		 3890 if (ndlp->nlp_flag & NLP_RPI_VALID) {
3891 /* The mempool_alloc might sleep */
3892 spin_unlock_irq(shost->host_lock);
ecfd03c6 3893 lpfc_unreg_rpi(vports[i], ndlp);
0c9ab6f5
JS		 3894 spin_lock_irq(shost->host_lock);
3895 }
ecfd03c6
JS		 3896 }
3897 spin_unlock_irq(shost->host_lock);
3898 }
3899 lpfc_destroy_vport_work_array(phba, vports);
3900}
3901
92d7f7b0
JS		 3902void
3903lpfc_unreg_all_rpis(struct lpfc_vport *vport)
3904{
3905 struct lpfc_hba *phba = vport->phba;
3906 LPFC_MBOXQ_t *mbox;
3907 int rc;
3908
3909 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3910 if (mbox) {
3911 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
3912 mbox->vport = vport;
3913 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
09372820
JS		 3914 mbox->context1 = NULL;
3915 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
a257bf90 3916 if (rc != MBX_TIMEOUT)
92d7f7b0 3917 mempool_free(mbox, phba->mbox_mem_pool);
a257bf90
JS		 3918
3919 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
3920 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3921 "1836 Could not issue "
3922 "unreg_login(all_rpis) status %d\n", rc);
92d7f7b0
JS		 3923 }
3924}
3925
3926void
3927lpfc_unreg_default_rpis(struct lpfc_vport *vport)
3928{
3929 struct lpfc_hba *phba = vport->phba;
3930 LPFC_MBOXQ_t *mbox;
3931 int rc;
3932
3933 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3934 if (mbox) {
3935 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
3936 mbox->vport = vport;
3937 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
09372820
JS		 3938 mbox->context1 = NULL;
3939 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
a257bf90
JS		 3940 if (rc != MBX_TIMEOUT)
3941 mempool_free(mbox, phba->mbox_mem_pool);
3942
3943 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
e8b62011
JS		 3944 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3945 "1815 Could not issue "
a257bf90
JS		 3946 "unreg_did (default rpis) status %d\n",
3947 rc);
92d7f7b0
JS		 3948 }
3949}
3950
dea3101e 3951/*
3952 * Free resources associated with LPFC_NODELIST entry
3953 * so it can be freed.
3954 */
3955static int
2e0fef85 3956lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 3957{
2e0fef85
JS		 3958 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3959 struct lpfc_hba *phba = vport->phba;
3960 LPFC_MBOXQ_t *mb, *nextmb;
dea3101e 3961 struct lpfc_dmabuf *mp;
dea3101e 3962
3963 /* Cleanup node for NPort <nlp_DID> */
e8b62011
JS		 3964 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3965 "0900 Cleanup node for NPort x%x "
3966 "Data: x%x x%x x%x\n",
3967 ndlp->nlp_DID, ndlp->nlp_flag,
3968 ndlp->nlp_state, ndlp->nlp_rpi);
e47c9093
JS		 3969 if (NLP_CHK_FREE_REQ(ndlp)) {
3970 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3971 "0280 lpfc_cleanup_node: ndlp:x%p "
3972 "usgmap:x%x refcnt:%d\n",
3973 (void *)ndlp, ndlp->nlp_usg_map,
3974 atomic_read(&ndlp->kref.refcount));
3975 lpfc_dequeue_node(vport, ndlp);
3976 } else {
3977 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3978 "0281 lpfc_cleanup_node: ndlp:x%p "
3979 "usgmap:x%x refcnt:%d\n",
3980 (void *)ndlp, ndlp->nlp_usg_map,
3981 atomic_read(&ndlp->kref.refcount));
3982 lpfc_disable_node(vport, ndlp);
3983 }
dea3101e 3984
dea3101e 3985 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
3986 if ((mb = phba->sli.mbox_active)) {
04c68496 3987 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
dea3101e 3988 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
3989 mb->context2 = NULL;
3990 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3991 }
3992 }
33ccf8d1 3993
2e0fef85 3994 spin_lock_irq(&phba->hbalock);
dea3101e 3995 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
04c68496 3996 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
92d7f7b0 3997 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
dea3101e 3998 mp = (struct lpfc_dmabuf *) (mb->context1);
3999 if (mp) {
2e0fef85 4000 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e 4001 kfree(mp);
4002 }
4003 list_del(&mb->list);
ffc95493
JS		 4004 if (phba->sli_rev == LPFC_SLI_REV4)
4005 lpfc_sli4_free_rpi(phba,
4006 mb->u.mb.un.varRegLogin.rpi);
dea3101e 4007 mempool_free(mb, phba->mbox_mem_pool);
e47c9093
JS		 4008 /* We shall not invoke the lpfc_nlp_put to decrement
4009 * the ndlp reference count as we are in the process
4010 * of lpfc_nlp_release.
4011 */
dea3101e 4012 }
4013 }
2e0fef85 4014 spin_unlock_irq(&phba->hbalock);
dea3101e 4015
e47c9093
JS		 4016 lpfc_els_abort(phba, ndlp);
4017
2e0fef85 4018 spin_lock_irq(shost->host_lock);
c01f3208 4019 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
2e0fef85 4020 spin_unlock_irq(shost->host_lock);
dea3101e 4021
5024ab17 4022 ndlp->nlp_last_elscmd = 0;
dea3101e 4023 del_timer_sync(&ndlp->nlp_delayfunc);
4024
0d2b6b83
JS		 4025 list_del_init(&ndlp->els_retry_evt.evt_listp);
4026 list_del_init(&ndlp->dev_loss_evt.evt_listp);
dea3101e 4027
2e0fef85 4028 lpfc_unreg_rpi(vport, ndlp);
dea3101e 4029
2fe165b6 4030 return 0;
dea3101e 4031}
4032
4033/*
4034 * Check to see if we can free the nlp back to the freelist.
4035 * If we are in the middle of using the nlp in the discovery state
4036 * machine, defer the free till we reach the end of the state machine.
4037 */
329f9bc7 4038static void
2e0fef85 4039lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 4040{
a8adb832 4041 struct lpfc_hba *phba = vport->phba;
1dcb58e5 4042 struct lpfc_rport_data *rdata;
a8adb832
JS		 4043 LPFC_MBOXQ_t *mbox;
4044 int rc;
dea3101e 4045
0d2b6b83 4046 lpfc_cancel_retry_delay_tmo(vport, ndlp);
21e9a0a5 4047 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
ffc95493 4048 !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
21e9a0a5 4049 !(ndlp->nlp_flag & NLP_RPI_VALID)) {
a8adb832
JS		 4050 /* For this case we need to cleanup the default rpi
4051 * allocated by the firmware.
4052 */
4053 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
4054 != NULL) {
21e9a0a5 4055 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
a8adb832
JS		 4056 (uint8_t *) &vport->fc_sparam, mbox, 0);
4057 if (rc) {
4058 mempool_free(mbox, phba->mbox_mem_pool);
4059 }
4060 else {
4061 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
4062 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
4063 mbox->vport = vport;
09372820 4064 mbox->context2 = NULL;
a8adb832
JS		 4065 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4066 if (rc == MBX_NOT_FINISHED) {
4067 mempool_free(mbox, phba->mbox_mem_pool);
4068 }
4069 }
4070 }
4071 }
2e0fef85 4072 lpfc_cleanup_node(vport, ndlp);
1dcb58e5 4073
2e0fef85 4074 /*
92d7f7b0
JS		 4075 * We can get here with a non-NULL ndlp->rport because when we
4076 * unregister a rport we don't break the rport/node linkage. So if we
4077 * do, make sure we don't leaving any dangling pointers behind.
2e0fef85 4078 */
92d7f7b0 4079 if (ndlp->rport) {
329f9bc7
JS		 4080 rdata = ndlp->rport->dd_data;
4081 rdata->pnode = NULL;
4082 ndlp->rport = NULL;
dea3101e 4083 }
dea3101e 4084}
4085
4086static int
2e0fef85
JS		 4087lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4088 uint32_t did)
dea3101e 4089{
2e0fef85 4090 D_ID mydid, ndlpdid, matchdid;
dea3101e 4091
4092 if (did == Bcast_DID)
2fe165b6 4093 return 0;
dea3101e 4094
dea3101e 4095 /* First check for Direct match */
4096 if (ndlp->nlp_DID == did)
2fe165b6 4097 return 1;
dea3101e 4098
4099 /* Next check for area/domain identically equals 0 match */
2e0fef85 4100 mydid.un.word = vport->fc_myDID;
dea3101e 4101 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2fe165b6 4102 return 0;
dea3101e 4103 }
4104
4105 matchdid.un.word = did;
4106 ndlpdid.un.word = ndlp->nlp_DID;
4107 if (matchdid.un.b.id == ndlpdid.un.b.id) {
4108 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
4109 (mydid.un.b.area == matchdid.un.b.area)) {
4110 if ((ndlpdid.un.b.domain == 0) &&
4111 (ndlpdid.un.b.area == 0)) {
4112 if (ndlpdid.un.b.id)
2fe165b6 4113 return 1;
dea3101e 4114 }
2fe165b6 4115 return 0;
dea3101e 4116 }
4117
4118 matchdid.un.word = ndlp->nlp_DID;
4119 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
4120 (mydid.un.b.area == ndlpdid.un.b.area)) {
4121 if ((matchdid.un.b.domain == 0) &&
4122 (matchdid.un.b.area == 0)) {
4123 if (matchdid.un.b.id)
2fe165b6 4124 return 1;
dea3101e 4125 }
4126 }
4127 }
2fe165b6 4128 return 0;
dea3101e 4129}
4130
685f0bf7 4131/* Search for a nodelist entry */
2e0fef85
JS		 4132static struct lpfc_nodelist *
4133__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
dea3101e 4134{
2fb9bd8b 4135 struct lpfc_nodelist *ndlp;
dea3101e 4136 uint32_t data1;
4137
2e0fef85
JS		 4138 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4139 if (lpfc_matchdid(vport, ndlp, did)) {
685f0bf7
JS		 4140 data1 = (((uint32_t) ndlp->nlp_state << 24) |
4141 ((uint32_t) ndlp->nlp_xri << 16) |
4142 ((uint32_t) ndlp->nlp_type << 8) |
4143 ((uint32_t) ndlp->nlp_rpi & 0xff));
e8b62011
JS		 4144 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4145 "0929 FIND node DID "
4146 "Data: x%p x%x x%x x%x\n",
4147 ndlp, ndlp->nlp_DID,
4148 ndlp->nlp_flag, data1);
685f0bf7 4149 return ndlp;
dea3101e 4150 }
4151 }
66a9ed66 4152
dea3101e 4153 /* FIND node did <did> NOT FOUND */
e8b62011
JS		 4154 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
4155 "0932 FIND node did x%x NOT FOUND.\n", did);
dea3101e 4156 return NULL;
4157}
4158
4159struct lpfc_nodelist *
2e0fef85
JS		 4160lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
4161{
4162 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4163 struct lpfc_nodelist *ndlp;
4164
4165 spin_lock_irq(shost->host_lock);
4166 ndlp = __lpfc_findnode_did(vport, did);
4167 spin_unlock_irq(shost->host_lock);
4168 return ndlp;
4169}
4170
4171struct lpfc_nodelist *
4172lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
dea3101e 4173{
2e0fef85 4174 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 4175 struct lpfc_nodelist *ndlp;
dea3101e 4176
2e0fef85 4177 ndlp = lpfc_findnode_did(vport, did);
c9f8735b 4178 if (!ndlp) {
2e0fef85
JS		 4179 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
4180 lpfc_rscn_payload_check(vport, did) == 0)
dea3101e 4181 return NULL;
4182 ndlp = (struct lpfc_nodelist *)
2e0fef85 4183 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
dea3101e 4184 if (!ndlp)
4185 return NULL;
2e0fef85
JS		 4186 lpfc_nlp_init(vport, ndlp, did);
4187 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4188 spin_lock_irq(shost->host_lock);
dea3101e 4189 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 4190 spin_unlock_irq(shost->host_lock);
dea3101e 4191 return ndlp;
e47c9093
JS		 4192 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4193 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
4194 if (!ndlp)
4195 return NULL;
4196 spin_lock_irq(shost->host_lock);
4197 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4198 spin_unlock_irq(shost->host_lock);
4199 return ndlp;
dea3101e 4200 }
e47c9093 4201
58da1ffb
JS		 4202 if ((vport->fc_flag & FC_RSCN_MODE) &&
4203 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
2e0fef85 4204 if (lpfc_rscn_payload_check(vport, did)) {
87af33fe
JS		 4205 /* If we've already recieved a PLOGI from this NPort
4206 * we don't need to try to discover it again.
4207 */
4208 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
4209 return NULL;
4210
c9f8735b
JW		 4211 /* Since this node is marked for discovery,
4212 * delay timeout is not needed.
4213 */
0d2b6b83 4214 lpfc_cancel_retry_delay_tmo(vport, ndlp);
a257bf90
JS		 4215 spin_lock_irq(shost->host_lock);
4216 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
4217 spin_unlock_irq(shost->host_lock);
071fbd3d 4218 } else
dea3101e 4219 ndlp = NULL;
2fe165b6 4220 } else {
87af33fe
JS		 4221 /* If we've already recieved a PLOGI from this NPort,
4222 * or we are already in the process of discovery on it,
4223 * we don't need to try to discover it again.
4224 */
685f0bf7 4225 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
87af33fe
JS		 4226 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
4227 ndlp->nlp_flag & NLP_RCV_PLOGI)
dea3101e 4228 return NULL;
2e0fef85
JS		 4229 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
4230 spin_lock_irq(shost->host_lock);
dea3101e 4231 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 4232 spin_unlock_irq(shost->host_lock);
dea3101e 4233 }
4234 return ndlp;
4235}
4236
4237/* Build a list of nodes to discover based on the loopmap */
4238void
2e0fef85 4239lpfc_disc_list_loopmap(struct lpfc_vport *vport)
dea3101e 4240{
2e0fef85 4241 struct lpfc_hba *phba = vport->phba;
dea3101e 4242 int j;
4243 uint32_t alpa, index;
4244
2e0fef85 4245 if (!lpfc_is_link_up(phba))
dea3101e 4246 return;
2e0fef85
JS		 4247
4248 if (phba->fc_topology != TOPOLOGY_LOOP)
dea3101e 4249 return;
dea3101e 4250
4251 /* Check for loop map present or not */
4252 if (phba->alpa_map[0]) {
4253 for (j = 1; j <= phba->alpa_map[0]; j++) {
4254 alpa = phba->alpa_map[j];
2e0fef85 4255 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
dea3101e 4256 continue;
2e0fef85 4257 lpfc_setup_disc_node(vport, alpa);
dea3101e 4258 }
4259 } else {
4260 /* No alpamap, so try all alpa's */
4261 for (j = 0; j < FC_MAXLOOP; j++) {
4262 /* If cfg_scan_down is set, start from highest
4263 * ALPA (0xef) to lowest (0x1).
4264 */
3de2a653 4265 if (vport->cfg_scan_down)
dea3101e 4266 index = j;
4267 else
4268 index = FC_MAXLOOP - j - 1;
4269 alpa = lpfcAlpaArray[index];
2e0fef85 4270 if ((vport->fc_myDID & 0xff) == alpa)
dea3101e 4271 continue;
2e0fef85 4272 lpfc_setup_disc_node(vport, alpa);
dea3101e 4273 }
4274 }
4275 return;
4276}
4277
dea3101e 4278void
2e0fef85 4279lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
dea3101e 4280{
dea3101e 4281 LPFC_MBOXQ_t *mbox;
2e0fef85
JS		 4282 struct lpfc_sli *psli = &phba->sli;
4283 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
4284 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
4285 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
4286 int rc;
4287
92d7f7b0
JS		 4288 /*
4289 * if it's not a physical port or if we already send
4290 * clear_la then don't send it.
4291 */
4292 if ((phba->link_state >= LPFC_CLEAR_LA) ||
da0436e9
JS		 4293 (vport->port_type != LPFC_PHYSICAL_PORT) ||
4294 (phba->sli_rev == LPFC_SLI_REV4))
92d7f7b0
JS		 4295 return;
4296
2e0fef85
JS		 4297 /* Link up discovery */
4298 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
4299 phba->link_state = LPFC_CLEAR_LA;
4300 lpfc_clear_la(phba, mbox);
4301 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
4302 mbox->vport = vport;
0b727fea 4303 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2e0fef85
JS		 4304 if (rc == MBX_NOT_FINISHED) {
4305 mempool_free(mbox, phba->mbox_mem_pool);
4306 lpfc_disc_flush_list(vport);
4307 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4308 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
4309 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
92d7f7b0
JS		 4310 phba->link_state = LPFC_HBA_ERROR;
4311 }
4312 }
4313}
4314
4315/* Reg_vpi to tell firmware to resume normal operations */
4316void
4317lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
4318{
4319 LPFC_MBOXQ_t *regvpimbox;
4320
4321 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4322 if (regvpimbox) {
da0436e9 4323 lpfc_reg_vpi(vport, regvpimbox);
92d7f7b0
JS		 4324 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
4325 regvpimbox->vport = vport;
0b727fea 4326 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
92d7f7b0
JS		 4327 == MBX_NOT_FINISHED) {
4328 mempool_free(regvpimbox, phba->mbox_mem_pool);
2e0fef85
JS		 4329 }
4330 }
4331}
4332
4333/* Start Link up / RSCN discovery on NPR nodes */
4334void
4335lpfc_disc_start(struct lpfc_vport *vport)
4336{
4337 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4338 struct lpfc_hba *phba = vport->phba;
685f0bf7 4339 uint32_t num_sent;
dea3101e 4340 uint32_t clear_la_pending;
685f0bf7 4341 int did_changed;
dea3101e 4342
2e0fef85 4343 if (!lpfc_is_link_up(phba))
dea3101e 4344 return;
2e0fef85
JS		 4345
4346 if (phba->link_state == LPFC_CLEAR_LA)
dea3101e 4347 clear_la_pending = 1;
4348 else
4349 clear_la_pending = 0;
4350
2e0fef85
JS		 4351 if (vport->port_state < LPFC_VPORT_READY)
4352 vport->port_state = LPFC_DISC_AUTH;
dea3101e 4353
2e0fef85
JS		 4354 lpfc_set_disctmo(vport);
4355
4356 if (vport->fc_prevDID == vport->fc_myDID)
dea3101e 4357 did_changed = 0;
2e0fef85 4358 else
dea3101e 4359 did_changed = 1;
2e0fef85
JS		 4360
4361 vport->fc_prevDID = vport->fc_myDID;
4362 vport->num_disc_nodes = 0;
dea3101e 4363
4364 /* Start Discovery state <hba_state> */
e8b62011
JS		 4365 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
4366 "0202 Start Discovery hba state x%x "
4367 "Data: x%x x%x x%x\n",
4368 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
4369 vport->fc_adisc_cnt);
dea3101e 4370
4371 /* First do ADISCs - if any */
2e0fef85 4372 num_sent = lpfc_els_disc_adisc(vport);
dea3101e 4373
4374 if (num_sent)
4375 return;
4376
92d7f7b0
JS		 4377 /*
4378 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
4379 * continue discovery.
4380 */
4381 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1b32f6aa 4382 !(vport->fc_flag & FC_PT2PT) &&
da0436e9
JS		 4383 !(vport->fc_flag & FC_RSCN_MODE) &&
4384 (phba->sli_rev < LPFC_SLI_REV4)) {
92d7f7b0
JS		 4385 lpfc_issue_reg_vpi(phba, vport);
4386 return;
4387 }
4388
4389 /*
4390 * For SLI2, we need to set port_state to READY and continue
4391 * discovery.
4392 */
2e0fef85 4393 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
dea3101e 4394 /* If we get here, there is nothing to ADISC */
92d7f7b0 4395 if (vport->port_type == LPFC_PHYSICAL_PORT)
2e0fef85 4396 lpfc_issue_clear_la(phba, vport);
2e0fef85 4397
92d7f7b0 4398 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2e0fef85
JS		 4399 vport->num_disc_nodes = 0;
4400 /* go thru NPR nodes and issue ELS PLOGIs */
4401 if (vport->fc_npr_cnt)
4402 lpfc_els_disc_plogi(vport);
4403
4404 if (!vport->num_disc_nodes) {
4405 spin_lock_irq(shost->host_lock);
4406 vport->fc_flag &= ~FC_NDISC_ACTIVE;
4407 spin_unlock_irq(shost->host_lock);
92d7f7b0 4408 lpfc_can_disctmo(vport);
dea3101e 4409 }
4410 }
92d7f7b0 4411 vport->port_state = LPFC_VPORT_READY;
dea3101e 4412 } else {
4413 /* Next do PLOGIs - if any */
2e0fef85 4414 num_sent = lpfc_els_disc_plogi(vport);
dea3101e 4415
4416 if (num_sent)
4417 return;
4418
2e0fef85 4419 if (vport->fc_flag & FC_RSCN_MODE) {
dea3101e 4420 /* Check to see if more RSCNs came in while we
4421 * were processing this one.
4422 */
2e0fef85
JS		 4423 if ((vport->fc_rscn_id_cnt == 0) &&
4424 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
4425 spin_lock_irq(shost->host_lock);
4426 vport->fc_flag &= ~FC_RSCN_MODE;
4427 spin_unlock_irq(shost->host_lock);
92d7f7b0 4428 lpfc_can_disctmo(vport);
2fe165b6 4429 } else
2e0fef85 4430 lpfc_els_handle_rscn(vport);
dea3101e 4431 }
4432 }
4433 return;
4434}
4435
4436/*
4437 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
4438 * ring the match the sppecified nodelist.
4439 */
4440static void
2e0fef85 4441lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 4442{
2534ba75 4443 LIST_HEAD(completions);
dea3101e 4444 struct lpfc_sli *psli;
4445 IOCB_t *icmd;
4446 struct lpfc_iocbq *iocb, *next_iocb;
4447 struct lpfc_sli_ring *pring;
dea3101e 4448
4449 psli = &phba->sli;
4450 pring = &psli->ring[LPFC_ELS_RING];
4451
4452 /* Error matching iocb on txq or txcmplq
4453 * First check the txq.
4454 */
2e0fef85 4455 spin_lock_irq(&phba->hbalock);
dea3101e 4456 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
4457 if (iocb->context1 != ndlp) {
4458 continue;
4459 }
4460 icmd = &iocb->iocb;
4461 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
4462 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
4463
2534ba75 4464 list_move_tail(&iocb->list, &completions);
dea3101e 4465 pring->txq_cnt--;
dea3101e 4466 }
4467 }
4468
4469 /* Next check the txcmplq */
4470 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
4471 if (iocb->context1 != ndlp) {
4472 continue;
4473 }
4474 icmd = &iocb->iocb;
2e0fef85
JS		 4475 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
4476 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
2534ba75
JS		 4477 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
4478 }
4479 }
2e0fef85 4480 spin_unlock_irq(&phba->hbalock);
dea3101e 4481
a257bf90
JS		 4482 /* Cancel all the IOCBs from the completions list */
4483 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
4484 IOERR_SLI_ABORTED);
dea3101e 4485}
4486
a6ababd2 4487static void
2e0fef85 4488lpfc_disc_flush_list(struct lpfc_vport *vport)
dea3101e 4489{
4490 struct lpfc_nodelist *ndlp, *next_ndlp;
2e0fef85 4491 struct lpfc_hba *phba = vport->phba;
dea3101e 4492
2e0fef85
JS		 4493 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
4494 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7 4495 nlp_listp) {
e47c9093
JS		 4496 if (!NLP_CHK_NODE_ACT(ndlp))
4497 continue;
685f0bf7
JS		 4498 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
4499 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
4500 lpfc_free_tx(phba, ndlp);
685f0bf7 4501 }
dea3101e 4502 }
4503 }
dea3101e 4504}
4505
92d7f7b0
JS		 4506void
4507lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
4508{
4509 lpfc_els_flush_rscn(vport);
4510 lpfc_els_flush_cmd(vport);
4511 lpfc_disc_flush_list(vport);
4512}
4513
dea3101e 4514/*****************************************************************************/
4515/*
4516 * NAME: lpfc_disc_timeout
4517 *
4518 * FUNCTION: Fibre Channel driver discovery timeout routine.
4519 *
4520 * EXECUTION ENVIRONMENT: interrupt only
4521 *
4522 * CALLED FROM:
4523 * Timer function
4524 *
4525 * RETURNS:
4526 * none
4527 */
4528/*****************************************************************************/
4529void
4530lpfc_disc_timeout(unsigned long ptr)
4531{
2e0fef85
JS		 4532 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
4533 struct lpfc_hba *phba = vport->phba;
5e9d9b82 4534 uint32_t tmo_posted;
dea3101e 4535 unsigned long flags = 0;
4536
4537 if (unlikely(!phba))
4538 return;
4539
5e9d9b82
JS		 4540 spin_lock_irqsave(&vport->work_port_lock, flags);
4541 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
4542 if (!tmo_posted)
2e0fef85 4543 vport->work_port_events |= WORKER_DISC_TMO;
5e9d9b82 4544 spin_unlock_irqrestore(&vport->work_port_lock, flags);
2e0fef85 4545
5e9d9b82
JS		 4546 if (!tmo_posted)
4547 lpfc_worker_wake_up(phba);
dea3101e 4548 return;
4549}
4550
4551static void
2e0fef85 4552lpfc_disc_timeout_handler(struct lpfc_vport *vport)
dea3101e 4553{
2e0fef85
JS		 4554 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4555 struct lpfc_hba *phba = vport->phba;
4556 struct lpfc_sli *psli = &phba->sli;
c9f8735b 4557 struct lpfc_nodelist *ndlp, *next_ndlp;
92d7f7b0 4558 LPFC_MBOXQ_t *initlinkmbox;
dea3101e 4559 int rc, clrlaerr = 0;
4560
2e0fef85 4561 if (!(vport->fc_flag & FC_DISC_TMO))
dea3101e 4562 return;
4563
2e0fef85
JS		 4564 spin_lock_irq(shost->host_lock);
4565 vport->fc_flag &= ~FC_DISC_TMO;
4566 spin_unlock_irq(shost->host_lock);
dea3101e 4567
858c9f6c
JS		 4568 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
4569 "disc timeout: state:x%x rtry:x%x flg:x%x",
4570 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
4571
2e0fef85 4572 switch (vport->port_state) {
dea3101e 4573
4574 case LPFC_LOCAL_CFG_LINK:
2e0fef85
JS		 4575 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
4576 * FAN
4577 */
4578 /* FAN timeout */
e8b62011
JS		 4579 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
4580 "0221 FAN timeout\n");
c9f8735b 4581 /* Start discovery by sending FLOGI, clean up old rpis */
2e0fef85 4582 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7 4583 nlp_listp) {
e47c9093
JS		 4584 if (!NLP_CHK_NODE_ACT(ndlp))
4585 continue;
685f0bf7
JS		 4586 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
4587 continue;
c9f8735b
JW		 4588 if (ndlp->nlp_type & NLP_FABRIC) {
4589 /* Clean up the ndlp on Fabric connections */
2e0fef85 4590 lpfc_drop_node(vport, ndlp);
87af33fe 4591
2fe165b6 4592 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
c9f8735b
JW		 4593 /* Fail outstanding IO now since device
4594 * is marked for PLOGI.
4595 */
2e0fef85 4596 lpfc_unreg_rpi(vport, ndlp);
c9f8735b
JW		 4597 }
4598 }
92d7f7b0 4599 if (vport->port_state != LPFC_FLOGI) {
92d7f7b0 4600 lpfc_initial_flogi(vport);
0ff10d46 4601 return;
92d7f7b0 4602 }
dea3101e 4603 break;
4604
92d7f7b0 4605 case LPFC_FDISC:
dea3101e 4606 case LPFC_FLOGI:
2e0fef85 4607 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
dea3101e 4608 /* Initial FLOGI timeout */
e8b62011
JS		 4609 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4610 "0222 Initial %s timeout\n",
87af33fe 4611 vport->vpi ? "FDISC" : "FLOGI");
dea3101e 4612
4613 /* Assume no Fabric and go on with discovery.
4614 * Check for outstanding ELS FLOGI to abort.
4615 */
4616
4617 /* FLOGI failed, so just use loop map to make discovery list */
2e0fef85 4618 lpfc_disc_list_loopmap(vport);
dea3101e 4619
4620 /* Start discovery */
2e0fef85 4621 lpfc_disc_start(vport);
dea3101e 4622 break;
4623
4624 case LPFC_FABRIC_CFG_LINK:
4625 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
4626 NameServer login */
e8b62011
JS		 4627 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4628 "0223 Timeout while waiting for "
4629 "NameServer login\n");
dea3101e 4630 /* Next look for NameServer ndlp */
2e0fef85 4631 ndlp = lpfc_findnode_did(vport, NameServer_DID);
e47c9093 4632 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
87af33fe
JS		 4633 lpfc_els_abort(phba, ndlp);
4634
4635 /* ReStart discovery */
4636 goto restart_disc;
dea3101e 4637
4638 case LPFC_NS_QRY:
4639 /* Check for wait for NameServer Rsp timeout */
e8b62011
JS		 4640 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4641 "0224 NameServer Query timeout "
4642 "Data: x%x x%x\n",
4643 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e 4644
92d7f7b0
JS		 4645 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
4646 /* Try it one more time */
4647 vport->fc_ns_retry++;
4648 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
4649 vport->fc_ns_retry, 0);
4650 if (rc == 0)
4651 break;
dea3101e 4652 }
92d7f7b0 4653 vport->fc_ns_retry = 0;
dea3101e 4654
87af33fe 4655restart_disc:
92d7f7b0
JS		 4656 /*
4657 * Discovery is over.
4658 * set port_state to PORT_READY if SLI2.
4659 * cmpl_reg_vpi will set port_state to READY for SLI3.
4660 */
3772a991
JS		 4661 if (phba->sli_rev < LPFC_SLI_REV4) {
4662 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
4663 lpfc_issue_reg_vpi(phba, vport);
4664 else { /* NPIV Not enabled */
4665 lpfc_issue_clear_la(phba, vport);
4666 vport->port_state = LPFC_VPORT_READY;
4667 }
dea3101e 4668 }
4669
4670 /* Setup and issue mailbox INITIALIZE LINK command */
4671 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4672 if (!initlinkmbox) {
e8b62011
JS		 4673 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4674 "0206 Device Discovery "
4675 "completion error\n");
2e0fef85 4676 phba->link_state = LPFC_HBA_ERROR;
dea3101e 4677 break;
4678 }
4679
4680 lpfc_linkdown(phba);
4681 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
4682 phba->cfg_link_speed);
04c68496 4683 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
ed957684 4684 initlinkmbox->vport = vport;
92d7f7b0 4685 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 4686 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
5b8bd0c9 4687 lpfc_set_loopback_flag(phba);
dea3101e 4688 if (rc == MBX_NOT_FINISHED)
4689 mempool_free(initlinkmbox, phba->mbox_mem_pool);
4690
4691 break;
4692
4693 case LPFC_DISC_AUTH:
4694 /* Node Authentication timeout */
e8b62011
JS		 4695 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4696 "0227 Node Authentication timeout\n");
2e0fef85
JS		 4697 lpfc_disc_flush_list(vport);
4698
92d7f7b0
JS		 4699 /*
4700 * set port_state to PORT_READY if SLI2.
4701 * cmpl_reg_vpi will set port_state to READY for SLI3.
4702 */
3772a991
JS		 4703 if (phba->sli_rev < LPFC_SLI_REV4) {
4704 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
4705 lpfc_issue_reg_vpi(phba, vport);
4706 else { /* NPIV Not enabled */
4707 lpfc_issue_clear_la(phba, vport);
4708 vport->port_state = LPFC_VPORT_READY;
4709 }
dea3101e 4710 }
4711 break;
4712
2e0fef85
JS		 4713 case LPFC_VPORT_READY:
4714 if (vport->fc_flag & FC_RSCN_MODE) {
e8b62011
JS		 4715 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4716 "0231 RSCN timeout Data: x%x "
4717 "x%x\n",
4718 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e 4719
4720 /* Cleanup any outstanding ELS commands */
2e0fef85 4721 lpfc_els_flush_cmd(vport);
dea3101e 4722
2e0fef85
JS		 4723 lpfc_els_flush_rscn(vport);
4724 lpfc_disc_flush_list(vport);
dea3101e 4725 }
4726 break;
2e0fef85 4727
92d7f7b0 4728 default:
e8b62011 4729 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
d7c255b2 4730 "0273 Unexpected discovery timeout, "
e8b62011 4731 "vport State x%x\n", vport->port_state);
2e0fef85
JS		 4732 break;
4733 }
4734
4735 switch (phba->link_state) {
4736 case LPFC_CLEAR_LA:
92d7f7b0 4737 /* CLEAR LA timeout */
e8b62011
JS		 4738 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4739 "0228 CLEAR LA timeout\n");
2e0fef85
JS		 4740 clrlaerr = 1;
4741 break;
4742
09372820
JS		 4743 case LPFC_LINK_UP:
4744 lpfc_issue_clear_la(phba, vport);
4745 /* Drop thru */
2e0fef85
JS		 4746 case LPFC_LINK_UNKNOWN:
4747 case LPFC_WARM_START:
4748 case LPFC_INIT_START:
4749 case LPFC_INIT_MBX_CMDS:
4750 case LPFC_LINK_DOWN:
2e0fef85 4751 case LPFC_HBA_ERROR:
e8b62011
JS		 4752 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4753 "0230 Unexpected timeout, hba link "
4754 "state x%x\n", phba->link_state);
2e0fef85
JS		 4755 clrlaerr = 1;
4756 break;
92d7f7b0
JS		 4757
4758 case LPFC_HBA_READY:
4759 break;
dea3101e 4760 }
4761
4762 if (clrlaerr) {
2e0fef85 4763 lpfc_disc_flush_list(vport);
a4bc3379 4764 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 4765 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4766 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2e0fef85 4767 vport->port_state = LPFC_VPORT_READY;
dea3101e 4768 }
4769
4770 return;
4771}
4772
dea3101e 4773/*
4774 * This routine handles processing a NameServer REG_LOGIN mailbox
4775 * command upon completion. It is setup in the LPFC_MBOXQ
4776 * as the completion routine when the command is
4777 * handed off to the SLI layer.
4778 */
4779void
2e0fef85 4780lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 4781{
04c68496 4782 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85
JS		 4783 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
4784 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
4785 struct lpfc_vport *vport = pmb->vport;
dea3101e 4786
4787 pmb->context1 = NULL;
d439d286 4788 pmb->context2 = NULL;
dea3101e 4789
dea3101e 4790 ndlp->nlp_rpi = mb->un.varWords[0];
21e9a0a5 4791 ndlp->nlp_flag |= NLP_RPI_VALID;
dea3101e 4792 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 4793 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 4794
2e0fef85
JS		 4795 /*
4796 * Start issuing Fabric-Device Management Interface (FDMI) command to
4797 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
4798 * fdmi-on=2 (supporting RPA/hostnmae)
dea3101e 4799 */
2e0fef85 4800
3de2a653 4801 if (vport->cfg_fdmi_on == 1)
2e0fef85
JS		 4802 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
4803 else
4804 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
dea3101e 4805
fa4066b6
JS		 4806 /* decrement the node reference count held for this callback
4807 * function.
4808 */
329f9bc7 4809 lpfc_nlp_put(ndlp);
dea3101e 4810 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4811 kfree(mp);
329f9bc7 4812 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 4813
4814 return;
4815}
4816
685f0bf7
JS		 4817static int
4818lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
4819{
4820 uint16_t *rpi = param;
4821
4822 return ndlp->nlp_rpi == *rpi;
4823}
4824
4825static int
4826lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
4827{
4828 return memcmp(&ndlp->nlp_portname, param,
4829 sizeof(ndlp->nlp_portname)) == 0;
4830}
4831
a6ababd2 4832static struct lpfc_nodelist *
2e0fef85 4833__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
dea3101e 4834{
21568f53 4835 struct lpfc_nodelist *ndlp;
dea3101e 4836
2e0fef85 4837 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
87af33fe 4838 if (filter(ndlp, param))
685f0bf7
JS		 4839 return ndlp;
4840 }
21568f53 4841 return NULL;
dea3101e 4842}
4843
685f0bf7
JS		 4844/*
4845 * This routine looks up the ndlp lists for the given RPI. If rpi found it
2e0fef85 4846 * returns the node list element pointer else return NULL.
685f0bf7
JS		 4847 */
4848struct lpfc_nodelist *
2e0fef85 4849__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
685f0bf7 4850{
2e0fef85 4851 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
685f0bf7
JS		 4852}
4853
488d1469 4854/*
685f0bf7 4855 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
2e0fef85 4856 * returns the node element list pointer else return NULL.
488d1469
JS		 4857 */
4858struct lpfc_nodelist *
2e0fef85 4859lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
488d1469 4860{
2e0fef85 4861 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
488d1469 4862 struct lpfc_nodelist *ndlp;
488d1469 4863
2e0fef85
JS		 4864 spin_lock_irq(shost->host_lock);
4865 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
4866 spin_unlock_irq(shost->host_lock);
858c9f6c 4867 return ndlp;
488d1469
JS		 4868}
4869
dea3101e 4870void
2e0fef85
JS		 4871lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4872 uint32_t did)
dea3101e 4873{
4874 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
109f6ed0
JS		 4875
4876 lpfc_initialize_node(vport, ndlp, did);
685f0bf7 4877 INIT_LIST_HEAD(&ndlp->nlp_listp);
858c9f6c
JS		 4878
4879 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4880 "node init: did:x%x",
4881 ndlp->nlp_DID, 0, 0);
4882
dea3101e 4883 return;
4884}
329f9bc7 4885
98c9ea5c
JS		 4886/* This routine releases all resources associated with a specifc NPort's ndlp
4887 * and mempool_free's the nodelist.
4888 */
311464ec 4889static void
329f9bc7
JS		 4890lpfc_nlp_release(struct kref *kref)
4891{
e47c9093
JS		 4892 struct lpfc_hba *phba;
4893 unsigned long flags;
329f9bc7
JS		 4894 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
4895 kref);
858c9f6c
JS		 4896
4897 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4898 "node release: did:x%x flg:x%x type:x%x",
4899 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4900
e47c9093
JS		 4901 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4902 "0279 lpfc_nlp_release: ndlp:x%p "
4903 "usgmap:x%x refcnt:%d\n",
4904 (void *)ndlp, ndlp->nlp_usg_map,
4905 atomic_read(&ndlp->kref.refcount));
4906
4907 /* remove ndlp from action. */
2e0fef85 4908 lpfc_nlp_remove(ndlp->vport, ndlp);
e47c9093
JS		 4909
4910 /* clear the ndlp active flag for all release cases */
a257bf90 4911 phba = ndlp->phba;
e47c9093
JS		 4912 spin_lock_irqsave(&phba->ndlp_lock, flags);
4913 NLP_CLR_NODE_ACT(ndlp);
4914 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4915
4916 /* free ndlp memory for final ndlp release */
ea2151b4
JS		 4917 if (NLP_CHK_FREE_REQ(ndlp)) {
4918 kfree(ndlp->lat_data);
a257bf90 4919 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
ea2151b4 4920 }
329f9bc7
JS		 4921}
4922
98c9ea5c
JS		 4923/* This routine bumps the reference count for a ndlp structure to ensure
4924 * that one discovery thread won't free a ndlp while another discovery thread
4925 * is using it.
4926 */
329f9bc7
JS		 4927struct lpfc_nodelist *
4928lpfc_nlp_get(struct lpfc_nodelist *ndlp)
4929{
e47c9093
JS		 4930 struct lpfc_hba *phba;
4931 unsigned long flags;
4932
98c9ea5c
JS		 4933 if (ndlp) {
4934 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4935 "node get: did:x%x flg:x%x refcnt:x%x",
4936 ndlp->nlp_DID, ndlp->nlp_flag,
4937 atomic_read(&ndlp->kref.refcount));
e47c9093
JS		 4938 /* The check of ndlp usage to prevent incrementing the
4939 * ndlp reference count that is in the process of being
4940 * released.
4941 */
a257bf90 4942 phba = ndlp->phba;
e47c9093
JS		 4943 spin_lock_irqsave(&phba->ndlp_lock, flags);
4944 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
4945 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4946 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4947 "0276 lpfc_nlp_get: ndlp:x%p "
4948 "usgmap:x%x refcnt:%d\n",
4949 (void *)ndlp, ndlp->nlp_usg_map,
4950 atomic_read(&ndlp->kref.refcount));
4951 return NULL;
4952 } else
4953 kref_get(&ndlp->kref);
4954 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
98c9ea5c 4955 }
329f9bc7
JS		 4956 return ndlp;
4957}
4958
98c9ea5c 4959/* This routine decrements the reference count for a ndlp structure. If the
e47c9093
JS		 4960 * count goes to 0, this indicates the the associated nodelist should be
4961 * freed. Returning 1 indicates the ndlp resource has been released; on the
4962 * other hand, returning 0 indicates the ndlp resource has not been released
4963 * yet.
98c9ea5c 4964 */
329f9bc7
JS		 4965int
4966lpfc_nlp_put(struct lpfc_nodelist *ndlp)
4967{
e47c9093
JS		 4968 struct lpfc_hba *phba;
4969 unsigned long flags;
4970
4971 if (!ndlp)
4972 return 1;
4973
4974 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4975 "node put: did:x%x flg:x%x refcnt:x%x",
4976 ndlp->nlp_DID, ndlp->nlp_flag,
4977 atomic_read(&ndlp->kref.refcount));
a257bf90 4978 phba = ndlp->phba;
e47c9093
JS		 4979 spin_lock_irqsave(&phba->ndlp_lock, flags);
4980 /* Check the ndlp memory free acknowledge flag to avoid the
4981 * possible race condition that kref_put got invoked again
4982 * after previous one has done ndlp memory free.
4983 */
4984 if (NLP_CHK_FREE_ACK(ndlp)) {
4985 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4986 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4987 "0274 lpfc_nlp_put: ndlp:x%p "
4988 "usgmap:x%x refcnt:%d\n",
4989 (void *)ndlp, ndlp->nlp_usg_map,
4990 atomic_read(&ndlp->kref.refcount));
4991 return 1;
4992 }
4993 /* Check the ndlp inactivate log flag to avoid the possible
4994 * race condition that kref_put got invoked again after ndlp
4995 * is already in inactivating state.
4996 */
4997 if (NLP_CHK_IACT_REQ(ndlp)) {
4998 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4999 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
5000 "0275 lpfc_nlp_put: ndlp:x%p "
5001 "usgmap:x%x refcnt:%d\n",
5002 (void *)ndlp, ndlp->nlp_usg_map,
5003 atomic_read(&ndlp->kref.refcount));
5004 return 1;
98c9ea5c 5005 }
e47c9093
JS		 5006 /* For last put, mark the ndlp usage flags to make sure no
5007 * other kref_get and kref_put on the same ndlp shall get
5008 * in between the process when the final kref_put has been
5009 * invoked on this ndlp.
5010 */
5011 if (atomic_read(&ndlp->kref.refcount) == 1) {
5012 /* Indicate ndlp is put to inactive state. */
5013 NLP_SET_IACT_REQ(ndlp);
5014 /* Acknowledge ndlp memory free has been seen. */
5015 if (NLP_CHK_FREE_REQ(ndlp))
5016 NLP_SET_FREE_ACK(ndlp);
5017 }
5018 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
5019 /* Note, the kref_put returns 1 when decrementing a reference
5020 * count that was 1, it invokes the release callback function,
5021 * but it still left the reference count as 1 (not actually
5022 * performs the last decrementation). Otherwise, it actually
5023 * decrements the reference count and returns 0.
5024 */
5025 return kref_put(&ndlp->kref, lpfc_nlp_release);
329f9bc7 5026}
98c9ea5c
JS		 5027
5028/* This routine free's the specified nodelist if it is not in use
e47c9093
JS		 5029 * by any other discovery thread. This routine returns 1 if the
5030 * ndlp has been freed. A return value of 0 indicates the ndlp is
5031 * not yet been released.
98c9ea5c
JS		 5032 */
5033int
5034lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
5035{
5036 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
5037 "node not used: did:x%x flg:x%x refcnt:x%x",
5038 ndlp->nlp_DID, ndlp->nlp_flag,
5039 atomic_read(&ndlp->kref.refcount));
e47c9093
JS		 5040 if (atomic_read(&ndlp->kref.refcount) == 1)
5041 if (lpfc_nlp_put(ndlp))
5042 return 1;
98c9ea5c
JS		 5043 return 0;
5044}
6fb120a7
JS		 5045
5046/**
5047 * lpfc_fcf_inuse - Check if FCF can be unregistered.
5048 * @phba: Pointer to hba context object.
5049 *
5050 * This function iterate through all FC nodes associated
5051 * will all vports to check if there is any node with
5052 * fc_rports associated with it. If there is an fc_rport
5053 * associated with the node, then the node is either in
5054 * discovered state or its devloss_timer is pending.
5055 */
5056static int
5057lpfc_fcf_inuse(struct lpfc_hba *phba)
5058{
5059 struct lpfc_vport **vports;
5060 int i, ret = 0;
5061 struct lpfc_nodelist *ndlp;
5062 struct Scsi_Host *shost;
5063
5064 vports = lpfc_create_vport_work_array(phba);
5065
5066 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
5067 shost = lpfc_shost_from_vport(vports[i]);
5068 spin_lock_irq(shost->host_lock);
5069 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
5070 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
5071 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
5072 ret = 1;
5073 spin_unlock_irq(shost->host_lock);
5074 goto out;
891478a2
JS		 5075 } else {
5076 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
5077 "2624 RPI %x DID %x flg %x still "
5078 "logged in\n",
5079 ndlp->nlp_rpi, ndlp->nlp_DID,
5080 ndlp->nlp_flag);
5081 if (ndlp->nlp_flag & NLP_RPI_VALID)
5082 ret = 1;
6fb120a7
JS		 5083 }
5084 }
5085 spin_unlock_irq(shost->host_lock);
5086 }
5087out:
5088 lpfc_destroy_vport_work_array(phba, vports);
5089 return ret;
5090}
5091
5092/**
5093 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
5094 * @phba: Pointer to hba context object.
5095 * @mboxq: Pointer to mailbox object.
5096 *
5097 * This function frees memory associated with the mailbox command.
5098 */
5099static void
5100lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5101{
5102 struct lpfc_vport *vport = mboxq->vport;
38b92ef8 5103 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6fb120a7
JS		 5104
5105 if (mboxq->u.mb.mbxStatus) {
5106 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5107 "2555 UNREG_VFI mbxStatus error x%x "
5108 "HBA state x%x\n",
5109 mboxq->u.mb.mbxStatus, vport->port_state);
5110 }
38b92ef8
JS		 5111 spin_lock_irq(shost->host_lock);
5112 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
5113 spin_unlock_irq(shost->host_lock);
6fb120a7
JS		 5114 mempool_free(mboxq, phba->mbox_mem_pool);
5115 return;
5116}
5117
5118/**
5119 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
5120 * @phba: Pointer to hba context object.
5121 * @mboxq: Pointer to mailbox object.
5122 *
5123 * This function frees memory associated with the mailbox command.
5124 */
5125static void
5126lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5127{
5128 struct lpfc_vport *vport = mboxq->vport;
5129
5130 if (mboxq->u.mb.mbxStatus) {
5131 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
5132 "2550 UNREG_FCFI mbxStatus error x%x "
5133 "HBA state x%x\n",
5134 mboxq->u.mb.mbxStatus, vport->port_state);
5135 }
5136 mempool_free(mboxq, phba->mbox_mem_pool);
5137 return;
5138}
5139
5140/**
ecfd03c6 5141 * lpfc_unregister_fcf_prep - Unregister fcf record preparation
6fb120a7
JS		 5142 * @phba: Pointer to hba context object.
5143 *
ecfd03c6
JS		 5144 * This function prepare the HBA for unregistering the currently registered
5145 * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
5146 * VFIs.
6fb120a7 5147 */
ecfd03c6
JS		 5148int
5149lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
6fb120a7
JS		 5150{
5151 LPFC_MBOXQ_t *mbox;
6fb120a7 5152 struct lpfc_vport **vports;
695a814e 5153 struct lpfc_nodelist *ndlp;
72100cc4 5154 struct Scsi_Host *shost;
ecfd03c6 5155 int i, rc;
6fb120a7 5156
ecfd03c6 5157 /* Unregister RPIs */
6fb120a7 5158 if (lpfc_fcf_inuse(phba))
ecfd03c6 5159 lpfc_unreg_hba_rpis(phba);
6fb120a7 5160
4d9ab994
JS		 5161 /* At this point, all discovery is aborted */
5162 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
6fb120a7
JS		 5163
5164 /* Unregister VPIs */
5165 vports = lpfc_create_vport_work_array(phba);
ecfd03c6 5166 if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
6fb120a7 5167 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
695a814e
JS		 5168 /* Stop FLOGI/FDISC retries */
5169 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
5170 if (ndlp)
5171 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
78730cfe 5172 lpfc_cleanup_pending_mbox(vports[i]);
6fb120a7 5173 lpfc_mbx_unreg_vpi(vports[i]);
72100cc4
JS		 5174 shost = lpfc_shost_from_vport(vports[i]);
5175 spin_lock_irq(shost->host_lock);
891478a2 5176 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
c868595d 5177 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
72100cc4 5178 spin_unlock_irq(shost->host_lock);
6fb120a7
JS		 5179 }
5180 lpfc_destroy_vport_work_array(phba, vports);
5181
695a814e
JS		 5182 /* Cleanup any outstanding ELS commands */
5183 lpfc_els_flush_all_cmd(phba);
5184
6fb120a7
JS		 5185 /* Unregister VFI */
5186 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5187 if (!mbox) {
5188 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
ecfd03c6
JS		 5189 "2556 UNREG_VFI mbox allocation failed"
5190 "HBA state x%x\n", phba->pport->port_state);
5191 return -ENOMEM;
6fb120a7
JS		 5192 }
5193
6669f9bb 5194 lpfc_unreg_vfi(mbox, phba->pport);
6fb120a7
JS		 5195 mbox->vport = phba->pport;
5196 mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl;
5197
5198 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5199 if (rc == MBX_NOT_FINISHED) {
5200 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
ecfd03c6
JS		 5201 "2557 UNREG_VFI issue mbox failed rc x%x "
5202 "HBA state x%x\n",
5203 rc, phba->pport->port_state);
6fb120a7 5204 mempool_free(mbox, phba->mbox_mem_pool);
ecfd03c6 5205 return -EIO;
6fb120a7
JS		 5206 }
5207
72100cc4
JS		 5208 shost = lpfc_shost_from_vport(phba->pport);
5209 spin_lock_irq(shost->host_lock);
695a814e 5210 phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
72100cc4 5211 spin_unlock_irq(shost->host_lock);
695a814e 5212
ecfd03c6
JS		 5213 return 0;
5214}
5215
5216/**
5217 * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
5218 * @phba: Pointer to hba context object.
5219 *
5220 * This function issues synchronous unregister FCF mailbox command to HBA to
5221 * unregister the currently registered FCF record. The driver does not reset
5222 * the driver FCF usage state flags.
5223 *
5224 * Return 0 if successfully issued, none-zero otherwise.
5225 */
5226int
5227lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
5228{
5229 LPFC_MBOXQ_t *mbox;
5230 int rc;
5231
6fb120a7
JS		 5232 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5233 if (!mbox) {
5234 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
ecfd03c6
JS		 5235 "2551 UNREG_FCFI mbox allocation failed"
5236 "HBA state x%x\n", phba->pport->port_state);
5237 return -ENOMEM;
6fb120a7 5238 }
6fb120a7
JS		 5239 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
5240 mbox->vport = phba->pport;
5241 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
5242 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5243
5244 if (rc == MBX_NOT_FINISHED) {
ecfd03c6
JS		 5245 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5246 "2552 Unregister FCFI command failed rc x%x "
5247 "HBA state x%x\n",
5248 rc, phba->pport->port_state);
5249 return -EINVAL;
5250 }
5251 return 0;
5252}
5253
5254/**
5255 * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
5256 * @phba: Pointer to hba context object.
5257 *
5258 * This function unregisters the currently reigstered FCF. This function
5259 * also tries to find another FCF for discovery by rescan the HBA FCF table.
5260 */
5261void
5262lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
5263{
5264 int rc;
5265
5266 /* Preparation for unregistering fcf */
5267 rc = lpfc_unregister_fcf_prep(phba);
5268 if (rc) {
5269 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
5270 "2748 Failed to prepare for unregistering "
5271 "HBA's FCF record: rc=%d\n", rc);
6fb120a7
JS		 5272 return;
5273 }
5274
ecfd03c6
JS		 5275 /* Now, unregister FCF record and reset HBA FCF state */
5276 rc = lpfc_sli4_unregister_fcf(phba);
5277 if (rc)
5278 return;
5279 /* Reset HBA FCF states after successful unregister FCF */
5280 phba->fcf.fcf_flag = 0;
fc2b989b 5281 phba->fcf.current_rec.flag = 0;
6fb120a7
JS		 5282
5283 /*
5284 * If driver is not unloading, check if there is any other
5285 * FCF record that can be used for discovery.
5286 */
5287 if ((phba->pport->load_flag & FC_UNLOADING) ||
ecfd03c6 5288 (phba->link_state < LPFC_LINK_UP))
6fb120a7
JS		 5289 return;
5290
0c9ab6f5
JS		 5291 /* This is considered as the initial FCF discovery scan */
5292 spin_lock_irq(&phba->hbalock);
5293 phba->fcf.fcf_flag |= FCF_INIT_DISC;
5294 spin_unlock_irq(&phba->hbalock);
38b92ef8
JS		 5295
5296 /* Reset FCF roundrobin bmask for new discovery */
5297 memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
5298
0c9ab6f5 5299 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6fb120a7 5300
0c9ab6f5
JS		 5301 if (rc) {
5302 spin_lock_irq(&phba->hbalock);
5303 phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
5304 spin_unlock_irq(&phba->hbalock);
6fb120a7 5305 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
ecfd03c6
JS		 5306 "2553 lpfc_unregister_unused_fcf failed "
5307 "to read FCF record HBA state x%x\n",
5308 phba->pport->port_state);
0c9ab6f5 5309 }
ecfd03c6
JS		 5310}
5311
5312/**
5313 * lpfc_unregister_fcf - Unregister the currently registered fcf record
5314 * @phba: Pointer to hba context object.
5315 *
5316 * This function just unregisters the currently reigstered FCF. It does not
5317 * try to find another FCF for discovery.
5318 */
5319void
5320lpfc_unregister_fcf(struct lpfc_hba *phba)
5321{
5322 int rc;
5323
5324 /* Preparation for unregistering fcf */
5325 rc = lpfc_unregister_fcf_prep(phba);
5326 if (rc) {
5327 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
5328 "2749 Failed to prepare for unregistering "
5329 "HBA's FCF record: rc=%d\n", rc);
5330 return;
5331 }
5332
5333 /* Now, unregister FCF record and reset HBA FCF state */
5334 rc = lpfc_sli4_unregister_fcf(phba);
5335 if (rc)
5336 return;
5337 /* Set proper HBA FCF states after successful unregister FCF */
5338 spin_lock_irq(&phba->hbalock);
5339 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
5340 spin_unlock_irq(&phba->hbalock);
5341}
5342
5343/**
5344 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
5345 * @phba: Pointer to hba context object.
5346 *
5347 * This function check if there are any connected remote port for the FCF and
5348 * if all the devices are disconnected, this function unregister FCFI.
5349 * This function also tries to use another FCF for discovery.
5350 */
5351void
5352lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
5353{
5354 /*
3804dc84
JS		 5355 * If HBA is not running in FIP mode, if HBA does not support
5356 * FCoE, if FCF discovery is ongoing, or if FCF has not been
5357 * registered, do nothing.
ecfd03c6
JS		 5358 */
5359 spin_lock_irq(&phba->hbalock);
5360 if (!(phba->hba_flag & HBA_FCOE_SUPPORT) ||
5361 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
dbb6b3ab 5362 !(phba->hba_flag & HBA_FIP_SUPPORT) ||
3804dc84 5363 (phba->fcf.fcf_flag & FCF_DISCOVERY) ||
dbb6b3ab 5364 (phba->pport->port_state == LPFC_FLOGI)) {
ecfd03c6
JS		 5365 spin_unlock_irq(&phba->hbalock);
5366 return;
5367 }
5368 spin_unlock_irq(&phba->hbalock);
5369
5370 if (lpfc_fcf_inuse(phba))
5371 return;
5372
5373 lpfc_unregister_fcf_rescan(phba);
6fb120a7
JS		 5374}
5375
5376/**
5377 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
5378 * @phba: Pointer to hba context object.
5379 * @buff: Buffer containing the FCF connection table as in the config
5380 * region.
5381 * This function create driver data structure for the FCF connection
5382 * record table read from config region 23.
5383 */
5384static void
5385lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
5386 uint8_t *buff)
5387{
5388 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5389 struct lpfc_fcf_conn_hdr *conn_hdr;
5390 struct lpfc_fcf_conn_rec *conn_rec;
5391 uint32_t record_count;
5392 int i;
5393
5394 /* Free the current connect table */
5395 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 5396 &phba->fcf_conn_rec_list, list) {
5397 list_del_init(&conn_entry->list);
6fb120a7 5398 kfree(conn_entry);
4d9ab994 5399 }
6fb120a7
JS		 5400
5401 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
5402 record_count = conn_hdr->length * sizeof(uint32_t)/
5403 sizeof(struct lpfc_fcf_conn_rec);
5404
5405 conn_rec = (struct lpfc_fcf_conn_rec *)
5406 (buff + sizeof(struct lpfc_fcf_conn_hdr));
5407
5408 for (i = 0; i < record_count; i++) {
5409 if (!(conn_rec[i].flags & FCFCNCT_VALID))
5410 continue;
5411 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
5412 GFP_KERNEL);
5413 if (!conn_entry) {
5414 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5415 "2566 Failed to allocate connection"
5416 " table entry\n");
5417 return;
5418 }
5419
5420 memcpy(&conn_entry->conn_rec, &conn_rec[i],
5421 sizeof(struct lpfc_fcf_conn_rec));
5422 conn_entry->conn_rec.vlan_tag =
5423 le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF;
5424 conn_entry->conn_rec.flags =
5425 le16_to_cpu(conn_entry->conn_rec.flags);
5426 list_add_tail(&conn_entry->list,
5427 &phba->fcf_conn_rec_list);
5428 }
5429}
5430
5431/**
5432 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
5433 * @phba: Pointer to hba context object.
5434 * @buff: Buffer containing the FCoE parameter data structure.
5435 *
5436 * This function update driver data structure with config
5437 * parameters read from config region 23.
5438 */
5439static void
5440lpfc_read_fcoe_param(struct lpfc_hba *phba,
5441 uint8_t *buff)
5442{
5443 struct lpfc_fip_param_hdr *fcoe_param_hdr;
5444 struct lpfc_fcoe_params *fcoe_param;
5445
5446 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
5447 buff;
5448 fcoe_param = (struct lpfc_fcoe_params *)
32b9793f 5449 (buff + sizeof(struct lpfc_fip_param_hdr));
6fb120a7
JS		 5450
5451 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
5452 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
5453 return;
5454
6fb120a7
JS		 5455 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
5456 phba->valid_vlan = 1;
5457 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
5458 0xFFF;
5459 }
5460
5461 phba->fc_map[0] = fcoe_param->fc_map[0];
5462 phba->fc_map[1] = fcoe_param->fc_map[1];
5463 phba->fc_map[2] = fcoe_param->fc_map[2];
5464 return;
5465}
5466
5467/**
5468 * lpfc_get_rec_conf23 - Get a record type in config region data.
5469 * @buff: Buffer containing config region 23 data.
5470 * @size: Size of the data buffer.
5471 * @rec_type: Record type to be searched.
5472 *
5473 * This function searches config region data to find the begining
5474 * of the record specified by record_type. If record found, this
5475 * function return pointer to the record else return NULL.
5476 */
5477static uint8_t *
5478lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
5479{
5480 uint32_t offset = 0, rec_length;
5481
5482 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
5483 (size < sizeof(uint32_t)))
5484 return NULL;
5485
5486 rec_length = buff[offset + 1];
5487
5488 /*
5489 * One TLV record has one word header and number of data words
5490 * specified in the rec_length field of the record header.
5491 */
5492 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
5493 <= size) {
5494 if (buff[offset] == rec_type)
5495 return &buff[offset];
5496
5497 if (buff[offset] == LPFC_REGION23_LAST_REC)
5498 return NULL;
5499
5500 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
5501 rec_length = buff[offset + 1];
5502 }
5503 return NULL;
5504}
5505
5506/**
5507 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
5508 * @phba: Pointer to lpfc_hba data structure.
5509 * @buff: Buffer containing config region 23 data.
5510 * @size: Size of the data buffer.
5511 *
eef35c2d 5512 * This function parses the FCoE config parameters in config region 23 and
6fb120a7
JS		 5513 * populate driver data structure with the parameters.
5514 */
5515void
5516lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
5517 uint8_t *buff,
5518 uint32_t size)
5519{
5520 uint32_t offset = 0, rec_length;
5521 uint8_t *rec_ptr;
5522
5523 /*
5524 * If data size is less than 2 words signature and version cannot be
5525 * verified.
5526 */
5527 if (size < 2*sizeof(uint32_t))
5528 return;
5529
5530 /* Check the region signature first */
5531 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
5532 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5533 "2567 Config region 23 has bad signature\n");
5534 return;
5535 }
5536
5537 offset += 4;
5538
5539 /* Check the data structure version */
5540 if (buff[offset] != LPFC_REGION23_VERSION) {
5541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5542 "2568 Config region 23 has bad version\n");
5543 return;
5544 }
5545 offset += 4;
5546
5547 rec_length = buff[offset + 1];
5548
5549 /* Read FCoE param record */
5550 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
5551 size - offset, FCOE_PARAM_TYPE);
5552 if (rec_ptr)
5553 lpfc_read_fcoe_param(phba, rec_ptr);
5554
5555 /* Read FCF connection table */
5556 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
5557 size - offset, FCOE_CONN_TBL_TYPE);
5558 if (rec_ptr)
5559 lpfc_read_fcf_conn_tbl(phba, rec_ptr);
5560
5561}
Linux 6.x block layer and io_uring tree(s)