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[SCSI] sd,sr: add early detection of medium not present
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
CommitLineData
dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
9413afff 4 * Copyright (C) 2004-2007 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>
23#include <linux/pci.h>
24#include <linux/kthread.h>
25#include <linux/interrupt.h>
26
91886523 27#include <scsi/scsi.h>
dea3101e 28#include <scsi/scsi_device.h>
29#include <scsi/scsi_host.h>
30#include <scsi/scsi_transport_fc.h>
31
32#include "lpfc_hw.h"
33#include "lpfc_disc.h"
34#include "lpfc_sli.h"
35#include "lpfc_scsi.h"
36#include "lpfc.h"
37#include "lpfc_logmsg.h"
38#include "lpfc_crtn.h"
92d7f7b0 39#include "lpfc_vport.h"
858c9f6c 40#include "lpfc_debugfs.h"
dea3101e 41
42/* AlpaArray for assignment of scsid for scan-down and bind_method */
43static uint8_t lpfcAlpaArray[] = {
44 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
45 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
46 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
47 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
48 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
49 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
50 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
51 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
52 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
53 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
54 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
55 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
56 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
57};
58
2e0fef85 59static void lpfc_disc_timeout_handler(struct lpfc_vport *);
dea3101e 60
c01f3208
JS		 61void
62lpfc_terminate_rport_io(struct fc_rport *rport)
dea3101e 63{
c01f3208
JS		 64 struct lpfc_rport_data *rdata;
65 struct lpfc_nodelist * ndlp;
66 struct lpfc_hba *phba;
dea3101e 67
c01f3208
JS		 68 rdata = rport->dd_data;
69 ndlp = rdata->pnode;
70
71 if (!ndlp) {
72 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
73 printk(KERN_ERR "Cannot find remote node"
74 " to terminate I/O Data x%x\n",
75 rport->port_id);
dea3101e 76 return;
77 }
78
2e0fef85 79 phba = ndlp->vport->phba;
c01f3208 80
858c9f6c
JS		 81 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
82 "rport terminate: sid:x%x did:x%x flg:x%x",
83 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
84
c01f3208 85 if (ndlp->nlp_sid != NLP_NO_SID) {
51ef4c26
JS		 86 lpfc_sli_abort_iocb(ndlp->vport,
87 &phba->sli.ring[phba->sli.fcp_ring],
88 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
c01f3208 89 }
c01f3208 90
51ef4c26
JS		 91 /*
92 * A device is normally blocked for rediscovery and unblocked when
93 * devloss timeout happens. In case a vport is removed or driver
94 * unloaded before devloss timeout happens, we need to unblock here.
95 */
96 scsi_target_unblock(&rport->dev);
c01f3208
JS		 97 return;
98}
99
100/*
101 * This function will be called when dev_loss_tmo fire.
102 */
103void
104lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
105{
106 struct lpfc_rport_data *rdata;
107 struct lpfc_nodelist * ndlp;
2e0fef85 108 struct lpfc_vport *vport;
858c9f6c 109 struct lpfc_hba *phba;
858c9f6c 110 struct lpfc_work_evt *evtp;
a8adb832
JS		 111 int put_node;
112 int put_rport;
c01f3208
JS		 113
114 rdata = rport->dd_data;
115 ndlp = rdata->pnode;
1a169689 116
c01f3208 117 if (!ndlp) {
92d7f7b0 118 if (rport->scsi_target_id != -1) {
c01f3208 119 printk(KERN_ERR "Cannot find remote node"
92d7f7b0
JS		 120 " for rport in dev_loss_tmo_callbk x%x\n",
121 rport->port_id);
122 }
c01f3208
JS		 123 return;
124 }
125
858c9f6c
JS		 126 vport = ndlp->vport;
127 phba = vport->phba;
128
129 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
130 "rport devlosscb: sid:x%x did:x%x flg:x%x",
131 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
132
a8adb832
JS		 133 /* Don't defer this if we are in the process of deleting the vport
134 * or unloading the driver. The unload will cleanup the node
135 * appropriately we just need to cleanup the ndlp rport info here.
136 */
137 if (vport->load_flag & FC_UNLOADING) {
138 put_node = rdata->pnode != NULL;
139 put_rport = ndlp->rport != NULL;
140 rdata->pnode = NULL;
141 ndlp->rport = NULL;
142 if (put_node)
143 lpfc_nlp_put(ndlp);
144 if (put_rport)
145 put_device(&rport->dev);
146 return;
147 }
148
149 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
150 return;
151
858c9f6c
JS		 152 evtp = &ndlp->dev_loss_evt;
153
154 if (!list_empty(&evtp->evt_listp))
155 return;
156
157 spin_lock_irq(&phba->hbalock);
158 evtp->evt_arg1 = ndlp;
858c9f6c
JS		 159 evtp->evt = LPFC_EVT_DEV_LOSS;
160 list_add_tail(&evtp->evt_listp, &phba->work_list);
161 if (phba->work_wait)
162 wake_up(phba->work_wait);
163
164 spin_unlock_irq(&phba->hbalock);
165
858c9f6c
JS		 166 return;
167}
168
169/*
170 * This function is called from the worker thread when dev_loss_tmo
171 * expire.
172 */
173void
174lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
175{
176 struct lpfc_rport_data *rdata;
177 struct fc_rport *rport;
178 struct lpfc_vport *vport;
179 struct lpfc_hba *phba;
180 uint8_t *name;
87af33fe
JS		 181 int put_node;
182 int put_rport;
858c9f6c
JS		 183 int warn_on = 0;
184
185 rport = ndlp->rport;
186
187 if (!rport)
188 return;
189
190 rdata = rport->dd_data;
191 name = (uint8_t *) &ndlp->nlp_portname;
192 vport = ndlp->vport;
193 phba = vport->phba;
194
195 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
196 "rport devlosstmo:did:x%x type:x%x id:x%x",
197 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
198
a8adb832
JS		 199 /* Don't defer this if we are in the process of deleting the vport
200 * or unloading the driver. The unload will cleanup the node
201 * appropriately we just need to cleanup the ndlp rport info here.
202 */
203 if (vport->load_flag & FC_UNLOADING) {
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
215 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
858c9f6c
JS		 216 return;
217
92d7f7b0
JS		 218 if (ndlp->nlp_type & NLP_FABRIC) {
219 /* We will clean up these Nodes in linkup */
220 put_node = rdata->pnode != NULL;
221 put_rport = ndlp->rport != NULL;
222 rdata->pnode = NULL;
223 ndlp->rport = NULL;
224 if (put_node)
225 lpfc_nlp_put(ndlp);
226 if (put_rport)
227 put_device(&rport->dev);
82085718 228 return;
92d7f7b0 229 }
82085718 230
dea3101e 231 if (ndlp->nlp_sid != NLP_NO_SID) {
6e8215e4 232 warn_on = 1;
dea3101e 233 /* flush the target */
51ef4c26
JS		 234 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
235 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
dea3101e 236 }
2e0fef85 237 if (vport->load_flag & FC_UNLOADING)
c01f3208
JS		 238 warn_on = 0;
239
6e8215e4 240 if (warn_on) {
e8b62011
JS		 241 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
242 "0203 Devloss timeout on "
243 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
244 "NPort x%x Data: x%x x%x x%x\n",
245 *name, *(name+1), *(name+2), *(name+3),
246 *(name+4), *(name+5), *(name+6), *(name+7),
247 ndlp->nlp_DID, ndlp->nlp_flag,
248 ndlp->nlp_state, ndlp->nlp_rpi);
6e8215e4 249 } else {
e8b62011
JS		 250 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
251 "0204 Devloss timeout on "
252 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
253 "NPort x%x Data: x%x x%x x%x\n",
254 *name, *(name+1), *(name+2), *(name+3),
255 *(name+4), *(name+5), *(name+6), *(name+7),
256 ndlp->nlp_DID, ndlp->nlp_flag,
257 ndlp->nlp_state, ndlp->nlp_rpi);
6e8215e4
JSEC		 258 }
259
87af33fe
JS		 260 put_node = rdata->pnode != NULL;
261 put_rport = ndlp->rport != NULL;
262 rdata->pnode = NULL;
263 ndlp->rport = NULL;
264 if (put_node)
265 lpfc_nlp_put(ndlp);
266 if (put_rport)
267 put_device(&rport->dev);
268
2e0fef85 269 if (!(vport->load_flag & FC_UNLOADING) &&
1dcb58e5 270 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
82085718 271 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
87af33fe 272 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)) {
2e0fef85 273 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
1dcb58e5 274 }
92d7f7b0 275}
c01f3208 276
92d7f7b0
JS		 277
278void
279lpfc_worker_wake_up(struct lpfc_hba *phba)
280{
281 wake_up(phba->work_wait);
dea3101e 282 return;
283}
284
285static void
2e0fef85 286lpfc_work_list_done(struct lpfc_hba *phba)
dea3101e 287{
288 struct lpfc_work_evt *evtp = NULL;
289 struct lpfc_nodelist *ndlp;
290 int free_evt;
291
2e0fef85
JS		 292 spin_lock_irq(&phba->hbalock);
293 while (!list_empty(&phba->work_list)) {
dea3101e 294 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
295 evt_listp);
2e0fef85 296 spin_unlock_irq(&phba->hbalock);
dea3101e 297 free_evt = 1;
2fe165b6 298 switch (evtp->evt) {
dea3101e 299 case LPFC_EVT_ELS_RETRY:
2e0fef85 300 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
dea3101e 301 lpfc_els_retry_delay_handler(ndlp);
92d7f7b0 302 free_evt = 0; /* evt is part of ndlp */
dea3101e 303 break;
858c9f6c
JS		 304 case LPFC_EVT_DEV_LOSS:
305 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
306 lpfc_nlp_get(ndlp);
307 lpfc_dev_loss_tmo_handler(ndlp);
308 free_evt = 0;
858c9f6c
JS		 309 lpfc_nlp_put(ndlp);
310 break;
dea3101e 311 case LPFC_EVT_ONLINE:
2e0fef85
JS		 312 if (phba->link_state < LPFC_LINK_DOWN)
313 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
41415862 314 else
2e0fef85 315 *(int *) (evtp->evt_arg1) = 0;
dea3101e 316 complete((struct completion *)(evtp->evt_arg2));
317 break;
46fa311e 318 case LPFC_EVT_OFFLINE_PREP:
2e0fef85 319 if (phba->link_state >= LPFC_LINK_DOWN)
46fa311e
JS		 320 lpfc_offline_prep(phba);
321 *(int *)(evtp->evt_arg1) = 0;
322 complete((struct completion *)(evtp->evt_arg2));
323 break;
324 case LPFC_EVT_OFFLINE:
325 lpfc_offline(phba);
41415862
JW		 326 lpfc_sli_brdrestart(phba);
327 *(int *)(evtp->evt_arg1) =
46fa311e
JS		 328 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
329 lpfc_unblock_mgmt_io(phba);
41415862
JW		 330 complete((struct completion *)(evtp->evt_arg2));
331 break;
332 case LPFC_EVT_WARM_START:
46fa311e 333 lpfc_offline(phba);
9290831f 334 lpfc_reset_barrier(phba);
41415862
JW		 335 lpfc_sli_brdreset(phba);
336 lpfc_hba_down_post(phba);
337 *(int *)(evtp->evt_arg1) =
338 lpfc_sli_brdready(phba, HS_MBRDY);
46fa311e 339 lpfc_unblock_mgmt_io(phba);
41415862
JW		 340 complete((struct completion *)(evtp->evt_arg2));
341 break;
342 case LPFC_EVT_KILL:
46fa311e 343 lpfc_offline(phba);
9290831f 344 *(int *)(evtp->evt_arg1)
2e0fef85
JS		 345 = (phba->pport->stopped)
346 ? 0 : lpfc_sli_brdkill(phba);
46fa311e 347 lpfc_unblock_mgmt_io(phba);
dea3101e 348 complete((struct completion *)(evtp->evt_arg2));
349 break;
350 }
351 if (free_evt)
352 kfree(evtp);
2e0fef85 353 spin_lock_irq(&phba->hbalock);
dea3101e 354 }
2e0fef85 355 spin_unlock_irq(&phba->hbalock);
dea3101e 356
357}
358
311464ec 359static void
2e0fef85 360lpfc_work_done(struct lpfc_hba *phba)
dea3101e 361{
362 struct lpfc_sli_ring *pring;
858c9f6c 363 uint32_t ha_copy, status, control, work_port_events;
549e55cd 364 struct lpfc_vport **vports;
51ef4c26 365 struct lpfc_vport *vport;
549e55cd 366 int i;
dea3101e 367
2e0fef85 368 spin_lock_irq(&phba->hbalock);
dea3101e 369 ha_copy = phba->work_ha;
370 phba->work_ha = 0;
2e0fef85 371 spin_unlock_irq(&phba->hbalock);
dea3101e 372
2fe165b6 373 if (ha_copy & HA_ERATT)
dea3101e 374 lpfc_handle_eratt(phba);
375
2fe165b6 376 if (ha_copy & HA_MBATT)
dea3101e 377 lpfc_sli_handle_mb_event(phba);
378
2fe165b6 379 if (ha_copy & HA_LATT)
dea3101e 380 lpfc_handle_latt(phba);
549e55cd
JS		 381 vports = lpfc_create_vport_work_array(phba);
382 if (vports != NULL)
51ef4c26
JS		 383 for(i = 0; i < LPFC_MAX_VPORTS; i++) {
384 /*
385 * We could have no vports in array if unloading, so if
386 * this happens then just use the pport
387 */
388 if (vports[i] == NULL && i == 0)
389 vport = phba->pport;
390 else
391 vport = vports[i];
392 if (vport == NULL)
393 break;
394 work_port_events = vport->work_port_events;
549e55cd 395 if (work_port_events & WORKER_DISC_TMO)
51ef4c26 396 lpfc_disc_timeout_handler(vport);
549e55cd 397 if (work_port_events & WORKER_ELS_TMO)
51ef4c26 398 lpfc_els_timeout_handler(vport);
549e55cd
JS		 399 if (work_port_events & WORKER_HB_TMO)
400 lpfc_hb_timeout_handler(phba);
401 if (work_port_events & WORKER_MBOX_TMO)
402 lpfc_mbox_timeout_handler(phba);
403 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
404 lpfc_unblock_fabric_iocbs(phba);
405 if (work_port_events & WORKER_FDMI_TMO)
51ef4c26 406 lpfc_fdmi_timeout_handler(vport);
549e55cd
JS		 407 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
408 lpfc_ramp_down_queue_handler(phba);
409 if (work_port_events & WORKER_RAMP_UP_QUEUE)
410 lpfc_ramp_up_queue_handler(phba);
51ef4c26
JS		 411 spin_lock_irq(&vport->work_port_lock);
412 vport->work_port_events &= ~work_port_events;
413 spin_unlock_irq(&vport->work_port_lock);
92d7f7b0 414 }
549e55cd 415 lpfc_destroy_vport_work_array(vports);
dea3101e 416
858c9f6c
JS		 417 pring = &phba->sli.ring[LPFC_ELS_RING];
418 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
419 status >>= (4*LPFC_ELS_RING);
420 if ((status & HA_RXMASK)
421 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
0b727fea 422 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
858c9f6c
JS		 423 pring->flag |= LPFC_DEFERRED_RING_EVENT;
424 } else {
425 lpfc_sli_handle_slow_ring_event(phba, pring,
426 (status &
427 HA_RXMASK));
428 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
429 }
430 /*
431 * Turn on Ring interrupts
432 */
433 spin_lock_irq(&phba->hbalock);
434 control = readl(phba->HCregaddr);
435 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
a58cbd52
JS		 436 lpfc_debugfs_slow_ring_trc(phba,
437 "WRK Enable ring: cntl:x%x hacopy:x%x",
438 control, ha_copy, 0);
439
858c9f6c 440 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
dea3101e 441 writel(control, phba->HCregaddr);
442 readl(phba->HCregaddr); /* flush */
dea3101e 443 }
a58cbd52
JS		 444 else {
445 lpfc_debugfs_slow_ring_trc(phba,
446 "WRK Ring ok: cntl:x%x hacopy:x%x",
447 control, ha_copy, 0);
448 }
858c9f6c 449 spin_unlock_irq(&phba->hbalock);
dea3101e 450 }
2e0fef85 451 lpfc_work_list_done(phba);
dea3101e 452}
453
454static int
2e0fef85
JS		 455check_work_wait_done(struct lpfc_hba *phba)
456{
92d7f7b0 457 struct lpfc_vport *vport;
549e55cd 458 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
858c9f6c 459 int rc = 0;
ed957684 460
2e0fef85 461 spin_lock_irq(&phba->hbalock);
92d7f7b0
JS		 462 list_for_each_entry(vport, &phba->port_list, listentry) {
463 if (vport->work_port_events) {
464 rc = 1;
549e55cd 465 break;
92d7f7b0
JS		 466 }
467 }
549e55cd
JS		 468 if (rc || phba->work_ha || (!list_empty(&phba->work_list)) ||
469 kthread_should_stop() || pring->flag & LPFC_DEFERRED_RING_EVENT) {
858c9f6c 470 rc = 1;
92d7f7b0 471 phba->work_found++;
549e55cd 472 } else
92d7f7b0 473 phba->work_found = 0;
2e0fef85
JS		 474 spin_unlock_irq(&phba->hbalock);
475 return rc;
dea3101e 476}
477
92d7f7b0 478
dea3101e 479int
480lpfc_do_work(void *p)
481{
482 struct lpfc_hba *phba = p;
483 int rc;
7259f0d0 484 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq);
dea3101e 485
486 set_user_nice(current, -20);
487 phba->work_wait = &work_waitq;
92d7f7b0 488 phba->work_found = 0;
dea3101e 489
490 while (1) {
491
492 rc = wait_event_interruptible(work_waitq,
92d7f7b0
JS		 493 check_work_wait_done(phba));
494
dea3101e 495 BUG_ON(rc);
496
497 if (kthread_should_stop())
498 break;
499
500 lpfc_work_done(phba);
501
92d7f7b0
JS		 502 /* If there is alot of slow ring work, like during link up
503 * check_work_wait_done() may cause this thread to not give
504 * up the CPU for very long periods of time. This may cause
505 * soft lockups or other problems. To avoid these situations
506 * give up the CPU here after LPFC_MAX_WORKER_ITERATION
507 * consecutive iterations.
508 */
509 if (phba->work_found >= LPFC_MAX_WORKER_ITERATION) {
510 phba->work_found = 0;
511 schedule();
512 }
dea3101e 513 }
514 phba->work_wait = NULL;
515 return 0;
516}
517
518/*
519 * This is only called to handle FC worker events. Since this a rare
520 * occurance, we allocate a struct lpfc_work_evt structure here instead of
521 * embedding it in the IOCB.
522 */
523int
2e0fef85 524lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
dea3101e 525 uint32_t evt)
526{
527 struct lpfc_work_evt *evtp;
ed957684 528 unsigned long flags;
dea3101e 529
530 /*
531 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
532 * be queued to worker thread for processing
533 */
92d7f7b0 534 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
dea3101e 535 if (!evtp)
536 return 0;
537
538 evtp->evt_arg1 = arg1;
539 evtp->evt_arg2 = arg2;
540 evtp->evt = evt;
541
ed957684 542 spin_lock_irqsave(&phba->hbalock, flags);
071fbd3d 543 list_add_tail(&evtp->evt_listp, &phba->work_list);
dea3101e 544 if (phba->work_wait)
92d7f7b0 545 lpfc_worker_wake_up(phba);
ed957684 546 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e 547
548 return 1;
549}
550
92d7f7b0
JS		 551void
552lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
553{
554 struct lpfc_hba *phba = vport->phba;
555 struct lpfc_nodelist *ndlp, *next_ndlp;
556 int rc;
557
558 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
559 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
560 continue;
561
98c9ea5c
JS		 562 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
563 ((vport->port_type == LPFC_NPIV_PORT) &&
564 (ndlp->nlp_DID == NameServer_DID)))
92d7f7b0
JS		 565 lpfc_unreg_rpi(vport, ndlp);
566
567 /* Leave Fabric nodes alone on link down */
568 if (!remove && ndlp->nlp_type & NLP_FABRIC)
569 continue;
570 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
571 remove
572 ? NLP_EVT_DEVICE_RM
573 : NLP_EVT_DEVICE_RECOVERY);
574 }
575 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
576 lpfc_mbx_unreg_vpi(vport);
577 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
578 }
579}
580
87af33fe 581void
98c9ea5c 582lpfc_port_link_failure(struct lpfc_vport *vport)
92d7f7b0 583{
92d7f7b0
JS		 584 /* Cleanup any outstanding RSCN activity */
585 lpfc_els_flush_rscn(vport);
586
587 /* Cleanup any outstanding ELS commands */
588 lpfc_els_flush_cmd(vport);
589
590 lpfc_cleanup_rpis(vport, 0);
591
92d7f7b0
JS		 592 /* Turn off discovery timer if its running */
593 lpfc_can_disctmo(vport);
594}
595
98c9ea5c
JS		 596static void
597lpfc_linkdown_port(struct lpfc_vport *vport)
598{
599 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
600
601 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
602
603 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
604 "Link Down: state:x%x rtry:x%x flg:x%x",
605 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
606
607 lpfc_port_link_failure(vport);
608
609}
610
dea3101e 611int
685f0bf7 612lpfc_linkdown(struct lpfc_hba *phba)
dea3101e 613{
2e0fef85
JS		 614 struct lpfc_vport *vport = phba->pport;
615 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
549e55cd 616 struct lpfc_vport **vports;
685f0bf7 617 LPFC_MBOXQ_t *mb;
549e55cd 618 int i;
dea3101e 619
2e0fef85
JS		 620 if (phba->link_state == LPFC_LINK_DOWN) {
621 return 0;
c9f8735b 622 }
2e0fef85 623 spin_lock_irq(&phba->hbalock);
92d7f7b0 624 if (phba->link_state > LPFC_LINK_DOWN) {
2e0fef85 625 phba->link_state = LPFC_LINK_DOWN;
92d7f7b0
JS		 626 phba->pport->fc_flag &= ~FC_LBIT;
627 }
2e0fef85 628 spin_unlock_irq(&phba->hbalock);
549e55cd
JS		 629 vports = lpfc_create_vport_work_array(phba);
630 if (vports != NULL)
631 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) {
632 /* Issue a LINK DOWN event to all nodes */
633 lpfc_linkdown_port(vports[i]);
634 }
635 lpfc_destroy_vport_work_array(vports);
dea3101e 636 /* Clean up any firmware default rpi's */
2e0fef85
JS		 637 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
638 if (mb) {
92d7f7b0 639 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
ed957684 640 mb->vport = vport;
2e0fef85 641 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 642 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
dea3101e 643 == MBX_NOT_FINISHED) {
2e0fef85 644 mempool_free(mb, phba->mbox_mem_pool);
dea3101e 645 }
646 }
647
dea3101e 648 /* Setup myDID for link up if we are in pt2pt mode */
92d7f7b0
JS		 649 if (phba->pport->fc_flag & FC_PT2PT) {
650 phba->pport->fc_myDID = 0;
2e0fef85
JS		 651 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
652 if (mb) {
dea3101e 653 lpfc_config_link(phba, mb);
92d7f7b0 654 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
ed957684 655 mb->vport = vport;
0b727fea 656 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
dea3101e 657 == MBX_NOT_FINISHED) {
2e0fef85 658 mempool_free(mb, phba->mbox_mem_pool);
dea3101e 659 }
660 }
2e0fef85 661 spin_lock_irq(shost->host_lock);
92d7f7b0 662 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
2e0fef85 663 spin_unlock_irq(shost->host_lock);
dea3101e 664 }
2e0fef85 665
92d7f7b0
JS		 666 return 0;
667}
dea3101e 668
92d7f7b0
JS		 669static void
670lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
671{
672 struct lpfc_nodelist *ndlp;
dea3101e 673
92d7f7b0
JS		 674 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
675 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
676 continue;
677
678 if (ndlp->nlp_type & NLP_FABRIC) {
679 /* On Linkup its safe to clean up the ndlp
680 * from Fabric connections.
681 */
682 if (ndlp->nlp_DID != Fabric_DID)
683 lpfc_unreg_rpi(vport, ndlp);
684 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
685 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
686 /* Fail outstanding IO now since device is
687 * marked for PLOGI.
688 */
689 lpfc_unreg_rpi(vport, ndlp);
690 }
691 }
dea3101e 692}
693
92d7f7b0
JS		 694static void
695lpfc_linkup_port(struct lpfc_vport *vport)
dea3101e 696{
92d7f7b0 697 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0
JS		 698 struct lpfc_hba *phba = vport->phba;
699
700 if ((vport->load_flag & FC_UNLOADING) != 0)
701 return;
702
858c9f6c
JS		 703 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
704 "Link Up: top:x%x speed:x%x flg:x%x",
705 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
706
92d7f7b0
JS		 707 /* If NPIV is not enabled, only bring the physical port up */
708 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
709 (vport != phba->pport))
710 return;
dea3101e 711
2e0fef85 712 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
d2873e4c 713
2e0fef85 714 spin_lock_irq(shost->host_lock);
2e0fef85
JS		 715 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
716 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
717 vport->fc_flag |= FC_NDISC_ACTIVE;
718 vport->fc_ns_retry = 0;
719 spin_unlock_irq(shost->host_lock);
dea3101e 720
92d7f7b0
JS		 721 if (vport->fc_flag & FC_LBIT)
722 lpfc_linkup_cleanup_nodes(vport);
dea3101e 723
92d7f7b0
JS		 724}
725
726static int
727lpfc_linkup(struct lpfc_hba *phba)
728{
549e55cd
JS		 729 struct lpfc_vport **vports;
730 int i;
92d7f7b0
JS		 731
732 phba->link_state = LPFC_LINK_UP;
733
734 /* Unblock fabric iocbs if they are blocked */
735 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
736 del_timer_sync(&phba->fabric_block_timer);
737
549e55cd
JS		 738 vports = lpfc_create_vport_work_array(phba);
739 if (vports != NULL)
740 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++)
741 lpfc_linkup_port(vports[i]);
742 lpfc_destroy_vport_work_array(vports);
92d7f7b0
JS		 743 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
744 lpfc_issue_clear_la(phba, phba->pport);
dea3101e 745
746 return 0;
747}
748
749/*
750 * This routine handles processing a CLEAR_LA mailbox
751 * command upon completion. It is setup in the LPFC_MBOXQ
752 * as the completion routine when the command is
753 * handed off to the SLI layer.
754 */
755void
2e0fef85 756lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 757{
2e0fef85
JS		 758 struct lpfc_vport *vport = pmb->vport;
759 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
760 struct lpfc_sli *psli = &phba->sli;
761 MAILBOX_t *mb = &pmb->mb;
dea3101e 762 uint32_t control;
763
dea3101e 764 /* Since we don't do discovery right now, turn these off here */
a4bc3379 765 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 766 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
767 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
768
769 /* Check for error */
770 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
92d7f7b0 771 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 772 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
773 "0320 CLEAR_LA mbxStatus error x%x hba "
774 "state x%x\n",
775 mb->mbxStatus, vport->port_state);
2e0fef85 776 phba->link_state = LPFC_HBA_ERROR;
dea3101e 777 goto out;
778 }
779
92d7f7b0
JS		 780 if (vport->port_type == LPFC_PHYSICAL_PORT)
781 phba->link_state = LPFC_HBA_READY;
782
783 spin_lock_irq(&phba->hbalock);
784 psli->sli_flag |= LPFC_PROCESS_LA;
785 control = readl(phba->HCregaddr);
786 control |= HC_LAINT_ENA;
787 writel(control, phba->HCregaddr);
788 readl(phba->HCregaddr); /* flush */
789 spin_unlock_irq(&phba->hbalock);
790 return;
dea3101e 791
2e0fef85
JS		 792 vport->num_disc_nodes = 0;
793 /* go thru NPR nodes and issue ELS PLOGIs */
794 if (vport->fc_npr_cnt)
795 lpfc_els_disc_plogi(vport);
dea3101e 796
2e0fef85
JS		 797 if (!vport->num_disc_nodes) {
798 spin_lock_irq(shost->host_lock);
799 vport->fc_flag &= ~FC_NDISC_ACTIVE;
800 spin_unlock_irq(shost->host_lock);
dea3101e 801 }
802
2e0fef85 803 vport->port_state = LPFC_VPORT_READY;
dea3101e 804
805out:
806 /* Device Discovery completes */
e8b62011
JS		 807 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
808 "0225 Device Discovery completes\n");
2e0fef85 809 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 810
2e0fef85
JS		 811 spin_lock_irq(shost->host_lock);
812 vport->fc_flag &= ~(FC_ABORT_DISCOVERY | FC_ESTABLISH_LINK);
813 spin_unlock_irq(shost->host_lock);
dea3101e 814
815 del_timer_sync(&phba->fc_estabtmo);
816
2e0fef85 817 lpfc_can_disctmo(vport);
dea3101e 818
819 /* turn on Link Attention interrupts */
2e0fef85
JS		 820
821 spin_lock_irq(&phba->hbalock);
dea3101e 822 psli->sli_flag |= LPFC_PROCESS_LA;
823 control = readl(phba->HCregaddr);
824 control |= HC_LAINT_ENA;
825 writel(control, phba->HCregaddr);
826 readl(phba->HCregaddr); /* flush */
2e0fef85 827 spin_unlock_irq(&phba->hbalock);
dea3101e 828
829 return;
830}
831
2e0fef85 832
dea3101e 833static void
25594c6b 834lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 835{
2e0fef85 836 struct lpfc_vport *vport = pmb->vport;
dea3101e 837
25594c6b 838 if (pmb->mb.mbxStatus)
dea3101e 839 goto out;
dea3101e 840
25594c6b
JW		 841 mempool_free(pmb, phba->mbox_mem_pool);
842
843 if (phba->fc_topology == TOPOLOGY_LOOP &&
2e0fef85
JS		 844 vport->fc_flag & FC_PUBLIC_LOOP &&
845 !(vport->fc_flag & FC_LBIT)) {
25594c6b 846 /* Need to wait for FAN - use discovery timer
2e0fef85 847 * for timeout. port_state is identically
25594c6b
JW		 848 * LPFC_LOCAL_CFG_LINK while waiting for FAN
849 */
2e0fef85 850 lpfc_set_disctmo(vport);
25594c6b 851 return;
92d7f7b0 852 }
dea3101e 853
2e0fef85 854 /* Start discovery by sending a FLOGI. port_state is identically
25594c6b
JW		 855 * LPFC_FLOGI while waiting for FLOGI cmpl
856 */
92d7f7b0 857 if (vport->port_state != LPFC_FLOGI) {
92d7f7b0
JS		 858 lpfc_initial_flogi(vport);
859 }
25594c6b 860 return;
dea3101e 861
862out:
e8b62011
JS		 863 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
864 "0306 CONFIG_LINK mbxStatus error x%x "
865 "HBA state x%x\n",
866 pmb->mb.mbxStatus, vport->port_state);
92d7f7b0 867 mempool_free(pmb, phba->mbox_mem_pool);
25594c6b 868
92d7f7b0 869 lpfc_linkdown(phba);
25594c6b 870
e8b62011
JS		 871 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
872 "0200 CONFIG_LINK bad hba state x%x\n",
873 vport->port_state);
dea3101e 874
92d7f7b0 875 lpfc_issue_clear_la(phba, vport);
dea3101e 876 return;
877}
878
879static void
2e0fef85 880lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 881{
dea3101e 882 MAILBOX_t *mb = &pmb->mb;
883 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
2e0fef85 884 struct lpfc_vport *vport = pmb->vport;
dea3101e 885
886
887 /* Check for error */
888 if (mb->mbxStatus) {
889 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 890 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
891 "0319 READ_SPARAM mbxStatus error x%x "
892 "hba state x%x>\n",
893 mb->mbxStatus, vport->port_state);
dea3101e 894 lpfc_linkdown(phba);
dea3101e 895 goto out;
896 }
897
2e0fef85 898 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
dea3101e 899 sizeof (struct serv_parm));
a12e07bc 900 if (phba->cfg_soft_wwnn)
2e0fef85
JS		 901 u64_to_wwn(phba->cfg_soft_wwnn,
902 vport->fc_sparam.nodeName.u.wwn);
c3f28afa 903 if (phba->cfg_soft_wwpn)
2e0fef85
JS		 904 u64_to_wwn(phba->cfg_soft_wwpn,
905 vport->fc_sparam.portName.u.wwn);
92d7f7b0
JS		 906 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
907 sizeof(vport->fc_nodename));
908 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
909 sizeof(vport->fc_portname));
910 if (vport->port_type == LPFC_PHYSICAL_PORT) {
911 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
912 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
913 }
914
dea3101e 915 lpfc_mbuf_free(phba, mp->virt, mp->phys);
916 kfree(mp);
2e0fef85 917 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 918 return;
919
920out:
921 pmb->context1 = NULL;
922 lpfc_mbuf_free(phba, mp->virt, mp->phys);
923 kfree(mp);
92d7f7b0
JS		 924 lpfc_issue_clear_la(phba, vport);
925 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 926 return;
927}
928
929static void
92d7f7b0 930lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
dea3101e 931{
92d7f7b0 932 struct lpfc_vport *vport = phba->pport;
dea3101e 933 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
2e0fef85 934 int i;
14691150
JS		 935 struct lpfc_dmabuf *mp;
936 int rc;
937
dea3101e 938 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
939 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
940
92d7f7b0 941 spin_lock_irq(&phba->hbalock);
2fe165b6 942 switch (la->UlnkSpeed) {
92d7f7b0
JS		 943 case LA_1GHZ_LINK:
944 phba->fc_linkspeed = LA_1GHZ_LINK;
945 break;
946 case LA_2GHZ_LINK:
947 phba->fc_linkspeed = LA_2GHZ_LINK;
948 break;
949 case LA_4GHZ_LINK:
950 phba->fc_linkspeed = LA_4GHZ_LINK;
951 break;
952 case LA_8GHZ_LINK:
953 phba->fc_linkspeed = LA_8GHZ_LINK;
954 break;
955 default:
956 phba->fc_linkspeed = LA_UNKNW_LINK;
957 break;
dea3101e 958 }
959
960 phba->fc_topology = la->topology;
92d7f7b0 961 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
dea3101e 962
963 if (phba->fc_topology == TOPOLOGY_LOOP) {
92d7f7b0 964 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
dea3101e 965
92d7f7b0 966 /* Get Loop Map information */
dea3101e 967 if (la->il)
2e0fef85 968 vport->fc_flag |= FC_LBIT;
dea3101e 969
2e0fef85 970 vport->fc_myDID = la->granted_AL_PA;
dea3101e 971 i = la->un.lilpBde64.tus.f.bdeSize;
972
973 if (i == 0) {
974 phba->alpa_map[0] = 0;
975 } else {
e8b62011 976 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
dea3101e 977 int numalpa, j, k;
978 union {
979 uint8_t pamap[16];
980 struct {
981 uint32_t wd1;
982 uint32_t wd2;
983 uint32_t wd3;
984 uint32_t wd4;
985 } pa;
986 } un;
987 numalpa = phba->alpa_map[0];
988 j = 0;
989 while (j < numalpa) {
990 memset(un.pamap, 0, 16);
991 for (k = 1; j < numalpa; k++) {
992 un.pamap[k - 1] =
993 phba->alpa_map[j + 1];
994 j++;
995 if (k == 16)
996 break;
997 }
998 /* Link Up Event ALPA map */
999 lpfc_printf_log(phba,
92d7f7b0
JS		 1000 KERN_WARNING,
1001 LOG_LINK_EVENT,
e8b62011 1002 "1304 Link Up Event "
92d7f7b0
JS		 1003 "ALPA map Data: x%x "
1004 "x%x x%x x%x\n",
92d7f7b0
JS		 1005 un.pa.wd1, un.pa.wd2,
1006 un.pa.wd3, un.pa.wd4);
dea3101e 1007 }
1008 }
1009 }
1010 } else {
92d7f7b0 1011 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
78b2d852 1012 if (phba->max_vpi && phba->cfg_enable_npiv &&
92d7f7b0
JS		 1013 (phba->sli_rev == 3))
1014 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
1015 }
2e0fef85
JS		 1016 vport->fc_myDID = phba->fc_pref_DID;
1017 vport->fc_flag |= FC_LBIT;
dea3101e 1018 }
92d7f7b0 1019 spin_unlock_irq(&phba->hbalock);
dea3101e 1020
1021 lpfc_linkup(phba);
1022 if (sparam_mbox) {
92d7f7b0 1023 lpfc_read_sparam(phba, sparam_mbox, 0);
2e0fef85 1024 sparam_mbox->vport = vport;
dea3101e 1025 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
0b727fea 1026 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
14691150
JS		 1027 if (rc == MBX_NOT_FINISHED) {
1028 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
1029 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1030 kfree(mp);
1031 mempool_free(sparam_mbox, phba->mbox_mem_pool);
1032 if (cfglink_mbox)
1033 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
92d7f7b0 1034 goto out;
14691150 1035 }
dea3101e 1036 }
1037
1038 if (cfglink_mbox) {
2e0fef85 1039 vport->port_state = LPFC_LOCAL_CFG_LINK;
dea3101e 1040 lpfc_config_link(phba, cfglink_mbox);
2e0fef85 1041 cfglink_mbox->vport = vport;
25594c6b 1042 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
0b727fea 1043 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
92d7f7b0
JS		 1044 if (rc != MBX_NOT_FINISHED)
1045 return;
1046 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
dea3101e 1047 }
92d7f7b0
JS		 1048out:
1049 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1050 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1051 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
1052 vport->port_state, sparam_mbox, cfglink_mbox);
92d7f7b0
JS		 1053 lpfc_issue_clear_la(phba, vport);
1054 return;
dea3101e 1055}
1056
1057static void
2e0fef85
JS		 1058lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
1059{
dea3101e 1060 uint32_t control;
1061 struct lpfc_sli *psli = &phba->sli;
1062
1063 lpfc_linkdown(phba);
1064
1065 /* turn on Link Attention interrupts - no CLEAR_LA needed */
2e0fef85 1066 spin_lock_irq(&phba->hbalock);
dea3101e 1067 psli->sli_flag |= LPFC_PROCESS_LA;
1068 control = readl(phba->HCregaddr);
1069 control |= HC_LAINT_ENA;
1070 writel(control, phba->HCregaddr);
1071 readl(phba->HCregaddr); /* flush */
2e0fef85 1072 spin_unlock_irq(&phba->hbalock);
dea3101e 1073}
1074
1075/*
1076 * This routine handles processing a READ_LA mailbox
1077 * command upon completion. It is setup in the LPFC_MBOXQ
1078 * as the completion routine when the command is
1079 * handed off to the SLI layer.
1080 */
1081void
2e0fef85 1082lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1083{
2e0fef85
JS		 1084 struct lpfc_vport *vport = pmb->vport;
1085 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 1086 READ_LA_VAR *la;
1087 MAILBOX_t *mb = &pmb->mb;
1088 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1089
1090 /* Check for error */
1091 if (mb->mbxStatus) {
ed957684 1092 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
e8b62011
JS		 1093 "1307 READ_LA mbox error x%x state x%x\n",
1094 mb->mbxStatus, vport->port_state);
dea3101e 1095 lpfc_mbx_issue_link_down(phba);
2e0fef85 1096 phba->link_state = LPFC_HBA_ERROR;
dea3101e 1097 goto lpfc_mbx_cmpl_read_la_free_mbuf;
1098 }
1099
1100 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
1101
1102 memcpy(&phba->alpa_map[0], mp->virt, 128);
1103
2e0fef85 1104 spin_lock_irq(shost->host_lock);
c9f8735b 1105 if (la->pb)
2e0fef85 1106 vport->fc_flag |= FC_BYPASSED_MODE;
c9f8735b 1107 else
2e0fef85
JS		 1108 vport->fc_flag &= ~FC_BYPASSED_MODE;
1109 spin_unlock_irq(shost->host_lock);
c9f8735b 1110
dea3101e 1111 if (((phba->fc_eventTag + 1) < la->eventTag) ||
92d7f7b0 1112 (phba->fc_eventTag == la->eventTag)) {
dea3101e 1113 phba->fc_stat.LinkMultiEvent++;
2e0fef85 1114 if (la->attType == AT_LINK_UP)
dea3101e 1115 if (phba->fc_eventTag != 0)
1116 lpfc_linkdown(phba);
92d7f7b0 1117 }
dea3101e 1118
1119 phba->fc_eventTag = la->eventTag;
1120
1121 if (la->attType == AT_LINK_UP) {
1122 phba->fc_stat.LinkUp++;
2e0fef85 1123 if (phba->link_flag & LS_LOOPBACK_MODE) {
5b8bd0c9 1124 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
e8b62011
JS		 1125 "1306 Link Up Event in loop back mode "
1126 "x%x received Data: x%x x%x x%x x%x\n",
1127 la->eventTag, phba->fc_eventTag,
1128 la->granted_AL_PA, la->UlnkSpeed,
1129 phba->alpa_map[0]);
5b8bd0c9
JS		 1130 } else {
1131 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011
JS		 1132 "1303 Link Up Event x%x received "
1133 "Data: x%x x%x x%x x%x\n",
1134 la->eventTag, phba->fc_eventTag,
1135 la->granted_AL_PA, la->UlnkSpeed,
1136 phba->alpa_map[0]);
5b8bd0c9 1137 }
92d7f7b0 1138 lpfc_mbx_process_link_up(phba, la);
dea3101e 1139 } else {
1140 phba->fc_stat.LinkDown++;
1141 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 1142 "1305 Link Down Event x%x received "
dea3101e 1143 "Data: x%x x%x x%x\n",
e8b62011 1144 la->eventTag, phba->fc_eventTag,
2e0fef85 1145 phba->pport->port_state, vport->fc_flag);
dea3101e 1146 lpfc_mbx_issue_link_down(phba);
1147 }
1148
1149lpfc_mbx_cmpl_read_la_free_mbuf:
1150 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1151 kfree(mp);
1152 mempool_free(pmb, phba->mbox_mem_pool);
1153 return;
1154}
1155
1156/*
1157 * This routine handles processing a REG_LOGIN mailbox
1158 * command upon completion. It is setup in the LPFC_MBOXQ
1159 * as the completion routine when the command is
1160 * handed off to the SLI layer.
1161 */
1162void
2e0fef85 1163lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1164{
2e0fef85 1165 struct lpfc_vport *vport = pmb->vport;
92d7f7b0 1166 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2e0fef85 1167 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
dea3101e 1168
dea3101e 1169 pmb->context1 = NULL;
1170
1171 /* Good status, call state machine */
2e0fef85 1172 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
dea3101e 1173 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1174 kfree(mp);
2e0fef85 1175 mempool_free(pmb, phba->mbox_mem_pool);
329f9bc7 1176 lpfc_nlp_put(ndlp);
dea3101e 1177
1178 return;
1179}
1180
92d7f7b0
JS		 1181static void
1182lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1183{
1184 MAILBOX_t *mb = &pmb->mb;
1185 struct lpfc_vport *vport = pmb->vport;
1186 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1187
1188 switch (mb->mbxStatus) {
1189 case 0x0011:
1190 case 0x0020:
1191 case 0x9700:
e8b62011
JS		 1192 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1193 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
1194 mb->mbxStatus);
92d7f7b0 1195 break;
92d7f7b0
JS		 1196 }
1197 vport->unreg_vpi_cmpl = VPORT_OK;
1198 mempool_free(pmb, phba->mbox_mem_pool);
1199 /*
1200 * This shost reference might have been taken at the beginning of
1201 * lpfc_vport_delete()
1202 */
1203 if (vport->load_flag & FC_UNLOADING)
1204 scsi_host_put(shost);
1205}
1206
1207void
1208lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
1209{
1210 struct lpfc_hba *phba = vport->phba;
1211 LPFC_MBOXQ_t *mbox;
1212 int rc;
1213
1214 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1215 if (!mbox)
1216 return;
1217
1218 lpfc_unreg_vpi(phba, vport->vpi, mbox);
1219 mbox->vport = vport;
1220 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
0b727fea 1221 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
92d7f7b0 1222 if (rc == MBX_NOT_FINISHED) {
e8b62011
JS		 1223 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
1224 "1800 Could not issue unreg_vpi\n");
92d7f7b0
JS		 1225 mempool_free(mbox, phba->mbox_mem_pool);
1226 vport->unreg_vpi_cmpl = VPORT_ERROR;
1227 }
1228}
1229
1230static void
1231lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1232{
1233 struct lpfc_vport *vport = pmb->vport;
1234 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1235 MAILBOX_t *mb = &pmb->mb;
1236
1237 switch (mb->mbxStatus) {
1238 case 0x0011:
1239 case 0x9601:
1240 case 0x9602:
e8b62011
JS		 1241 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1242 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
1243 mb->mbxStatus);
92d7f7b0
JS		 1244 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1245 spin_lock_irq(shost->host_lock);
1246 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1247 spin_unlock_irq(shost->host_lock);
1248 vport->fc_myDID = 0;
1249 goto out;
1250 }
92d7f7b0
JS		 1251
1252 vport->num_disc_nodes = 0;
1253 /* go thru NPR list and issue ELS PLOGIs */
1254 if (vport->fc_npr_cnt)
1255 lpfc_els_disc_plogi(vport);
1256
1257 if (!vport->num_disc_nodes) {
1258 spin_lock_irq(shost->host_lock);
1259 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1260 spin_unlock_irq(shost->host_lock);
1261 lpfc_can_disctmo(vport);
1262 }
1263 vport->port_state = LPFC_VPORT_READY;
1264
1265out:
1266 mempool_free(pmb, phba->mbox_mem_pool);
1267 return;
1268}
1269
dea3101e 1270/*
1271 * This routine handles processing a Fabric REG_LOGIN mailbox
1272 * command upon completion. It is setup in the LPFC_MBOXQ
1273 * as the completion routine when the command is
1274 * handed off to the SLI layer.
1275 */
1276void
2e0fef85 1277lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1278{
92d7f7b0 1279 struct lpfc_vport *vport = pmb->vport;
2e0fef85
JS		 1280 MAILBOX_t *mb = &pmb->mb;
1281 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
92d7f7b0 1282 struct lpfc_nodelist *ndlp;
549e55cd
JS		 1283 struct lpfc_vport **vports;
1284 int i;
dea3101e 1285
549e55cd 1286 ndlp = (struct lpfc_nodelist *) pmb->context2;
329f9bc7
JS		 1287 pmb->context1 = NULL;
1288 pmb->context2 = NULL;
dea3101e 1289 if (mb->mbxStatus) {
1290 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1291 kfree(mp);
329f9bc7
JS		 1292 mempool_free(pmb, phba->mbox_mem_pool);
1293 lpfc_nlp_put(ndlp);
dea3101e 1294
92d7f7b0
JS		 1295 if (phba->fc_topology == TOPOLOGY_LOOP) {
1296 /* FLOGI failed, use loop map to make discovery list */
1297 lpfc_disc_list_loopmap(vport);
1298
1299 /* Start discovery */
1300 lpfc_disc_start(vport);
1301 return;
1302 }
1303
1304 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1305 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1306 "0258 Register Fabric login error: 0x%x\n",
1307 mb->mbxStatus);
dea3101e 1308 return;
1309 }
1310
dea3101e 1311 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1312 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 1313 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1314
329f9bc7
JS		 1315 lpfc_nlp_put(ndlp); /* Drop the reference from the mbox */
1316
2e0fef85 1317 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
549e55cd
JS		 1318 vports = lpfc_create_vport_work_array(phba);
1319 if (vports != NULL)
1320 for(i = 0;
1321 i < LPFC_MAX_VPORTS && vports[i] != NULL;
1322 i++) {
1323 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
1324 continue;
1325 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
1326 lpfc_initial_fdisc(vports[i]);
1327 else if (phba->sli3_options &
1328 LPFC_SLI3_NPIV_ENABLED) {
1329 lpfc_vport_set_state(vports[i],
1330 FC_VPORT_NO_FABRIC_SUPP);
e8b62011
JS		 1331 lpfc_printf_vlog(vport, KERN_ERR,
1332 LOG_ELS,
1333 "0259 No NPIV "
1334 "Fabric support\n");
549e55cd 1335 }
dea3101e 1336 }
549e55cd 1337 lpfc_destroy_vport_work_array(vports);
92d7f7b0 1338 lpfc_do_scr_ns_plogi(phba, vport);
dea3101e 1339 }
1340
1341 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1342 kfree(mp);
329f9bc7 1343 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1344 return;
1345}
1346
1347/*
1348 * This routine handles processing a NameServer REG_LOGIN mailbox
1349 * command upon completion. It is setup in the LPFC_MBOXQ
1350 * as the completion routine when the command is
1351 * handed off to the SLI layer.
1352 */
1353void
2e0fef85 1354lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1355{
2e0fef85
JS		 1356 MAILBOX_t *mb = &pmb->mb;
1357 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1358 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
1359 struct lpfc_vport *vport = pmb->vport;
dea3101e 1360
1361 if (mb->mbxStatus) {
92d7f7b0 1362out:
329f9bc7 1363 lpfc_nlp_put(ndlp);
dea3101e 1364 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1365 kfree(mp);
de0c5b32 1366 mempool_free(pmb, phba->mbox_mem_pool);
87af33fe
JS		 1367
1368 /* If no other thread is using the ndlp, free it */
1369 lpfc_nlp_not_used(ndlp);
dea3101e 1370
92d7f7b0
JS		 1371 if (phba->fc_topology == TOPOLOGY_LOOP) {
1372 /*
1373 * RegLogin failed, use loop map to make discovery
1374 * list
1375 */
1376 lpfc_disc_list_loopmap(vport);
dea3101e 1377
92d7f7b0
JS		 1378 /* Start discovery */
1379 lpfc_disc_start(vport);
1380 return;
1381 }
1382 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1383 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1384 "0260 Register NameServer error: 0x%x\n",
1385 mb->mbxStatus);
dea3101e 1386 return;
1387 }
1388
1389 pmb->context1 = NULL;
1390
dea3101e 1391 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1392 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 1393 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1394
2e0fef85
JS		 1395 if (vport->port_state < LPFC_VPORT_READY) {
1396 /* Link up discovery requires Fabric registration. */
92d7f7b0
JS		 1397 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
1398 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
1399 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
1400 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
1401 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
1402
1403 /* Issue SCR just before NameServer GID_FT Query */
1404 lpfc_issue_els_scr(vport, SCR_DID, 0);
dea3101e 1405 }
1406
2e0fef85 1407 vport->fc_ns_retry = 0;
dea3101e 1408 /* Good status, issue CT Request to NameServer */
92d7f7b0 1409 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
dea3101e 1410 /* Cannot issue NameServer Query, so finish up discovery */
92d7f7b0 1411 goto out;
dea3101e 1412 }
1413
329f9bc7 1414 lpfc_nlp_put(ndlp);
dea3101e 1415 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1416 kfree(mp);
2e0fef85 1417 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1418
1419 return;
1420}
1421
1422static void
2e0fef85 1423lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1424{
2e0fef85
JS		 1425 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1426 struct fc_rport *rport;
dea3101e 1427 struct lpfc_rport_data *rdata;
1428 struct fc_rport_identifiers rport_ids;
2e0fef85 1429 struct lpfc_hba *phba = vport->phba;
dea3101e 1430
1431 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 1432 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1433 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e 1434 rport_ids.port_id = ndlp->nlp_DID;
1435 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e 1436
329f9bc7
JS		 1437 /*
1438 * We leave our node pointer in rport->dd_data when we unregister a
1439 * FCP target port. But fc_remote_port_add zeros the space to which
1440 * rport->dd_data points. So, if we're reusing a previously
1441 * registered port, drop the reference that we took the last time we
1442 * registered the port.
1443 */
1444 if (ndlp->rport && ndlp->rport->dd_data &&
92d7f7b0 1445 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp) {
329f9bc7
JS		 1446 lpfc_nlp_put(ndlp);
1447 }
858c9f6c
JS		 1448
1449 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
1450 "rport add: did:x%x flg:x%x type x%x",
1451 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1452
2e0fef85 1453 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
329f9bc7 1454 if (!rport || !get_device(&rport->dev)) {
dea3101e 1455 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1456 "Warning: fc_remote_port_add failed\n");
1457 return;
1458 }
1459
1460 /* initialize static port data */
1461 rport->maxframe_size = ndlp->nlp_maxframe;
1462 rport->supported_classes = ndlp->nlp_class_sup;
dea3101e 1463 rdata = rport->dd_data;
329f9bc7 1464 rdata->pnode = lpfc_nlp_get(ndlp);
23dc04f1
JSEC		 1465
1466 if (ndlp->nlp_type & NLP_FCP_TARGET)
1467 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1468 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1469 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1470
1471
1472 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1473 fc_remote_port_rolechg(rport, rport_ids.roles);
1474
071fbd3d 1475 if ((rport->scsi_target_id != -1) &&
92d7f7b0 1476 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
071fbd3d
JS		 1477 ndlp->nlp_sid = rport->scsi_target_id;
1478 }
19a7b4ae
JSEC		 1479 return;
1480}
1481
1482static void
2e0fef85 1483lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
19a7b4ae
JSEC		 1484{
1485 struct fc_rport *rport = ndlp->rport;
c01f3208 1486
858c9f6c
JS		 1487 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
1488 "rport delete: did:x%x flg:x%x type x%x",
1489 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1490
19a7b4ae 1491 fc_remote_port_delete(rport);
dea3101e 1492
1493 return;
1494}
1495
de0c5b32 1496static void
2e0fef85 1497lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
dea3101e 1498{
2e0fef85
JS		 1499 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1500
1501 spin_lock_irq(shost->host_lock);
de0c5b32
JS		 1502 switch (state) {
1503 case NLP_STE_UNUSED_NODE:
2e0fef85 1504 vport->fc_unused_cnt += count;
de0c5b32
JS		 1505 break;
1506 case NLP_STE_PLOGI_ISSUE:
2e0fef85 1507 vport->fc_plogi_cnt += count;
de0c5b32
JS		 1508 break;
1509 case NLP_STE_ADISC_ISSUE:
2e0fef85 1510 vport->fc_adisc_cnt += count;
dea3101e 1511 break;
de0c5b32 1512 case NLP_STE_REG_LOGIN_ISSUE:
2e0fef85 1513 vport->fc_reglogin_cnt += count;
de0c5b32
JS		 1514 break;
1515 case NLP_STE_PRLI_ISSUE:
2e0fef85 1516 vport->fc_prli_cnt += count;
de0c5b32
JS		 1517 break;
1518 case NLP_STE_UNMAPPED_NODE:
2e0fef85 1519 vport->fc_unmap_cnt += count;
de0c5b32
JS		 1520 break;
1521 case NLP_STE_MAPPED_NODE:
2e0fef85 1522 vport->fc_map_cnt += count;
de0c5b32
JS		 1523 break;
1524 case NLP_STE_NPR_NODE:
2e0fef85 1525 vport->fc_npr_cnt += count;
de0c5b32
JS		 1526 break;
1527 }
2e0fef85 1528 spin_unlock_irq(shost->host_lock);
de0c5b32 1529}
66a9ed66 1530
de0c5b32 1531static void
2e0fef85 1532lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
de0c5b32
JS		 1533 int old_state, int new_state)
1534{
2e0fef85
JS		 1535 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1536
de0c5b32
JS		 1537 if (new_state == NLP_STE_UNMAPPED_NODE) {
1538 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1539 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1540 ndlp->nlp_type |= NLP_FC_NODE;
1541 }
1542 if (new_state == NLP_STE_MAPPED_NODE)
1543 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1544 if (new_state == NLP_STE_NPR_NODE)
1545 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
1546
1547 /* Transport interface */
1548 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
1549 old_state == NLP_STE_UNMAPPED_NODE)) {
2e0fef85
JS		 1550 vport->phba->nport_event_cnt++;
1551 lpfc_unregister_remote_port(ndlp);
de0c5b32 1552 }
dea3101e 1553
de0c5b32
JS		 1554 if (new_state == NLP_STE_MAPPED_NODE ||
1555 new_state == NLP_STE_UNMAPPED_NODE) {
2e0fef85 1556 vport->phba->nport_event_cnt++;
858c9f6c
JS		 1557 /*
1558 * Tell the fc transport about the port, if we haven't
1559 * already. If we have, and it's a scsi entity, be
1560 * sure to unblock any attached scsi devices
1561 */
1562 lpfc_register_remote_port(vport, ndlp);
de0c5b32 1563 }
858c9f6c
JS		 1564 /*
1565 * if we added to Mapped list, but the remote port
1566 * registration failed or assigned a target id outside
1567 * our presentable range - move the node to the
1568 * Unmapped List
1569 */
de0c5b32
JS		 1570 if (new_state == NLP_STE_MAPPED_NODE &&
1571 (!ndlp->rport ||
1572 ndlp->rport->scsi_target_id == -1 ||
1573 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
2e0fef85 1574 spin_lock_irq(shost->host_lock);
de0c5b32 1575 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
2e0fef85
JS		 1576 spin_unlock_irq(shost->host_lock);
1577 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1578 }
de0c5b32
JS		 1579}
1580
685f0bf7
JS		 1581static char *
1582lpfc_nlp_state_name(char *buffer, size_t size, int state)
1583{
1584 static char *states[] = {
1585 [NLP_STE_UNUSED_NODE] = "UNUSED",
1586 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
1587 [NLP_STE_ADISC_ISSUE] = "ADISC",
1588 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
1589 [NLP_STE_PRLI_ISSUE] = "PRLI",
1590 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
1591 [NLP_STE_MAPPED_NODE] = "MAPPED",
1592 [NLP_STE_NPR_NODE] = "NPR",
1593 };
1594
311464ec 1595 if (state < NLP_STE_MAX_STATE && states[state])
685f0bf7
JS		 1596 strlcpy(buffer, states[state], size);
1597 else
1598 snprintf(buffer, size, "unknown (%d)", state);
1599 return buffer;
1600}
1601
de0c5b32 1602void
2e0fef85
JS		 1603lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1604 int state)
de0c5b32 1605{
2e0fef85 1606 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
de0c5b32 1607 int old_state = ndlp->nlp_state;
685f0bf7 1608 char name1[16], name2[16];
de0c5b32 1609
e8b62011
JS		 1610 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1611 "0904 NPort state transition x%06x, %s -> %s\n",
1612 ndlp->nlp_DID,
1613 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
1614 lpfc_nlp_state_name(name2, sizeof(name2), state));
858c9f6c
JS		 1615
1616 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
1617 "node statechg did:x%x old:%d ste:%d",
1618 ndlp->nlp_DID, old_state, state);
1619
de0c5b32
JS		 1620 if (old_state == NLP_STE_NPR_NODE &&
1621 (ndlp->nlp_flag & NLP_DELAY_TMO) != 0 &&
1622 state != NLP_STE_NPR_NODE)
2e0fef85 1623 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32
JS		 1624 if (old_state == NLP_STE_UNMAPPED_NODE) {
1625 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1626 ndlp->nlp_type &= ~NLP_FC_NODE;
1627 }
1628
685f0bf7 1629 if (list_empty(&ndlp->nlp_listp)) {
2e0fef85
JS		 1630 spin_lock_irq(shost->host_lock);
1631 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
1632 spin_unlock_irq(shost->host_lock);
685f0bf7 1633 } else if (old_state)
2e0fef85 1634 lpfc_nlp_counters(vport, old_state, -1);
de0c5b32
JS		 1635
1636 ndlp->nlp_state = state;
2e0fef85
JS		 1637 lpfc_nlp_counters(vport, state, 1);
1638 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
de0c5b32
JS		 1639}
1640
1641void
2e0fef85 1642lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 1643{
2e0fef85
JS		 1644 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1645
de0c5b32 1646 if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
2e0fef85 1647 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32 1648 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2e0fef85
JS		 1649 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
1650 spin_lock_irq(shost->host_lock);
685f0bf7 1651 list_del_init(&ndlp->nlp_listp);
2e0fef85 1652 spin_unlock_irq(shost->host_lock);
858c9f6c
JS		 1653 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
1654 NLP_STE_UNUSED_NODE);
de0c5b32
JS		 1655}
1656
1657void
2e0fef85 1658lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 1659{
87af33fe
JS		 1660 /*
1661 * Use of lpfc_drop_node and UNUSED list. lpfc_drop_node should
1662 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
1663 * the ndlp from the vport. The ndlp resides on the UNUSED list
1664 * until ALL other outstanding threads have completed. Thus, if a
1665 * ndlp is on the UNUSED list already, we should never do another
1666 * lpfc_drop_node() on it.
1667 */
51ef4c26 1668 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
87af33fe 1669 lpfc_nlp_put(ndlp);
98c9ea5c 1670 return;
dea3101e 1671}
1672
1673/*
1674 * Start / ReStart rescue timer for Discovery / RSCN handling
1675 */
1676void
2e0fef85 1677lpfc_set_disctmo(struct lpfc_vport *vport)
dea3101e 1678{
2e0fef85
JS		 1679 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1680 struct lpfc_hba *phba = vport->phba;
dea3101e 1681 uint32_t tmo;
1682
2e0fef85 1683 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
c9f8735b
JW		 1684 /* For FAN, timeout should be greater then edtov */
1685 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1686 } else {
1687 /* Normal discovery timeout should be > then ELS/CT timeout
1688 * FC spec states we need 3 * ratov for CT requests
1689 */
1690 tmo = ((phba->fc_ratov * 3) + 3);
1691 }
dea3101e 1692
858c9f6c
JS		 1693
1694 if (!timer_pending(&vport->fc_disctmo)) {
1695 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1696 "set disc timer: tmo:x%x state:x%x flg:x%x",
1697 tmo, vport->port_state, vport->fc_flag);
1698 }
1699
2e0fef85
JS		 1700 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
1701 spin_lock_irq(shost->host_lock);
1702 vport->fc_flag |= FC_DISC_TMO;
1703 spin_unlock_irq(shost->host_lock);
dea3101e 1704
1705 /* Start Discovery Timer state <hba_state> */
e8b62011
JS		 1706 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1707 "0247 Start Discovery Timer state x%x "
1708 "Data: x%x x%lx x%x x%x\n",
1709 vport->port_state, tmo,
1710 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
1711 vport->fc_adisc_cnt);
dea3101e 1712
1713 return;
1714}
1715
1716/*
1717 * Cancel rescue timer for Discovery / RSCN handling
1718 */
1719int
2e0fef85 1720lpfc_can_disctmo(struct lpfc_vport *vport)
dea3101e 1721{
2e0fef85 1722 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85
JS		 1723 unsigned long iflags;
1724
858c9f6c
JS		 1725 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1726 "can disc timer: state:x%x rtry:x%x flg:x%x",
1727 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
1728
dea3101e 1729 /* Turn off discovery timer if its running */
2e0fef85
JS		 1730 if (vport->fc_flag & FC_DISC_TMO) {
1731 spin_lock_irqsave(shost->host_lock, iflags);
1732 vport->fc_flag &= ~FC_DISC_TMO;
1733 spin_unlock_irqrestore(shost->host_lock, iflags);
1734 del_timer_sync(&vport->fc_disctmo);
1735 spin_lock_irqsave(&vport->work_port_lock, iflags);
1736 vport->work_port_events &= ~WORKER_DISC_TMO;
1737 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
dea3101e 1738 }
1739
1740 /* Cancel Discovery Timer state <hba_state> */
e8b62011
JS		 1741 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1742 "0248 Cancel Discovery Timer state x%x "
1743 "Data: x%x x%x x%x\n",
1744 vport->port_state, vport->fc_flag,
1745 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
2fe165b6 1746 return 0;
dea3101e 1747}
1748
1749/*
1750 * Check specified ring for outstanding IOCB on the SLI queue
1751 * Return true if iocb matches the specified nport
1752 */
1753int
2e0fef85
JS		 1754lpfc_check_sli_ndlp(struct lpfc_hba *phba,
1755 struct lpfc_sli_ring *pring,
1756 struct lpfc_iocbq *iocb,
1757 struct lpfc_nodelist *ndlp)
dea3101e 1758{
2e0fef85
JS		 1759 struct lpfc_sli *psli = &phba->sli;
1760 IOCB_t *icmd = &iocb->iocb;
92d7f7b0
JS		 1761 struct lpfc_vport *vport = ndlp->vport;
1762
1763 if (iocb->vport != vport)
1764 return 0;
1765
dea3101e 1766 if (pring->ringno == LPFC_ELS_RING) {
1767 switch (icmd->ulpCommand) {
1768 case CMD_GEN_REQUEST64_CR:
1769 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
2fe165b6 1770 return 1;
dea3101e 1771 case CMD_ELS_REQUEST64_CR:
10d4e957
JS		 1772 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1773 return 1;
dea3101e 1774 case CMD_XMIT_ELS_RSP64_CX:
1775 if (iocb->context1 == (uint8_t *) ndlp)
2fe165b6 1776 return 1;
dea3101e 1777 }
a4bc3379 1778 } else if (pring->ringno == psli->extra_ring) {
dea3101e 1779
1780 } else if (pring->ringno == psli->fcp_ring) {
1781 /* Skip match check if waiting to relogin to FCP target */
1782 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
92d7f7b0 1783 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
2fe165b6 1784 return 0;
dea3101e 1785 }
1786 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
2fe165b6 1787 return 1;
dea3101e 1788 }
1789 } else if (pring->ringno == psli->next_ring) {
1790
1791 }
2fe165b6 1792 return 0;
dea3101e 1793}
1794
1795/*
1796 * Free resources / clean up outstanding I/Os
1797 * associated with nlp_rpi in the LPFC_NODELIST entry.
1798 */
1799static int
2e0fef85 1800lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 1801{
2534ba75 1802 LIST_HEAD(completions);
dea3101e 1803 struct lpfc_sli *psli;
1804 struct lpfc_sli_ring *pring;
1805 struct lpfc_iocbq *iocb, *next_iocb;
1806 IOCB_t *icmd;
1807 uint32_t rpi, i;
1808
92d7f7b0
JS		 1809 lpfc_fabric_abort_nport(ndlp);
1810
dea3101e 1811 /*
1812 * Everything that matches on txcmplq will be returned
1813 * by firmware with a no rpi error.
1814 */
1815 psli = &phba->sli;
1816 rpi = ndlp->nlp_rpi;
1817 if (rpi) {
1818 /* Now process each ring */
1819 for (i = 0; i < psli->num_rings; i++) {
1820 pring = &psli->ring[i];
1821
2e0fef85 1822 spin_lock_irq(&phba->hbalock);
dea3101e 1823 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
2e0fef85 1824 list) {
dea3101e 1825 /*
1826 * Check to see if iocb matches the nport we are
1827 * looking for
1828 */
92d7f7b0
JS		 1829 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
1830 ndlp))) {
dea3101e 1831 /* It matches, so deque and call compl
1832 with an error */
2534ba75
JS		 1833 list_move_tail(&iocb->list,
1834 &completions);
dea3101e 1835 pring->txq_cnt--;
dea3101e 1836 }
1837 }
2e0fef85 1838 spin_unlock_irq(&phba->hbalock);
dea3101e 1839 }
1840 }
2534ba75
JS		 1841
1842 while (!list_empty(&completions)) {
1843 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
92d7f7b0 1844 list_del_init(&iocb->list);
2534ba75 1845
2e0fef85
JS		 1846 if (!iocb->iocb_cmpl)
1847 lpfc_sli_release_iocbq(phba, iocb);
1848 else {
2534ba75
JS		 1849 icmd = &iocb->iocb;
1850 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1851 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2e0fef85
JS		 1852 (iocb->iocb_cmpl)(phba, iocb, iocb);
1853 }
2534ba75
JS		 1854 }
1855
2fe165b6 1856 return 0;
dea3101e 1857}
1858
1859/*
1860 * Free rpi associated with LPFC_NODELIST entry.
1861 * This routine is called from lpfc_freenode(), when we are removing
1862 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1863 * LOGO that completes successfully, and we are waiting to PLOGI back
1864 * to the remote NPort. In addition, it is called after we receive
1865 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1866 * we are waiting to PLOGI back to the remote NPort.
1867 */
1868int
2e0fef85 1869lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1870{
2e0fef85
JS		 1871 struct lpfc_hba *phba = vport->phba;
1872 LPFC_MBOXQ_t *mbox;
dea3101e 1873 int rc;
1874
1875 if (ndlp->nlp_rpi) {
2e0fef85
JS		 1876 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1877 if (mbox) {
92d7f7b0 1878 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
ed957684 1879 mbox->vport = vport;
92d7f7b0 1880 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 1881 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
dea3101e 1882 if (rc == MBX_NOT_FINISHED)
2e0fef85 1883 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 1884 }
dea3101e 1885 lpfc_no_rpi(phba, ndlp);
1886 ndlp->nlp_rpi = 0;
1887 return 1;
1888 }
1889 return 0;
1890}
1891
92d7f7b0
JS		 1892void
1893lpfc_unreg_all_rpis(struct lpfc_vport *vport)
1894{
1895 struct lpfc_hba *phba = vport->phba;
1896 LPFC_MBOXQ_t *mbox;
1897 int rc;
1898
1899 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1900 if (mbox) {
1901 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
1902 mbox->vport = vport;
1903 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 1904 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
92d7f7b0
JS		 1905 if (rc == MBX_NOT_FINISHED) {
1906 mempool_free(mbox, phba->mbox_mem_pool);
1907 }
1908 }
1909}
1910
1911void
1912lpfc_unreg_default_rpis(struct lpfc_vport *vport)
1913{
1914 struct lpfc_hba *phba = vport->phba;
1915 LPFC_MBOXQ_t *mbox;
1916 int rc;
1917
1918 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1919 if (mbox) {
1920 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
1921 mbox->vport = vport;
1922 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 1923 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
92d7f7b0 1924 if (rc == MBX_NOT_FINISHED) {
e8b62011
JS		 1925 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
1926 "1815 Could not issue "
1927 "unreg_did (default rpis)\n");
92d7f7b0
JS		 1928 mempool_free(mbox, phba->mbox_mem_pool);
1929 }
1930 }
1931}
1932
dea3101e 1933/*
1934 * Free resources associated with LPFC_NODELIST entry
1935 * so it can be freed.
1936 */
1937static int
2e0fef85 1938lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1939{
2e0fef85
JS		 1940 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1941 struct lpfc_hba *phba = vport->phba;
1942 LPFC_MBOXQ_t *mb, *nextmb;
dea3101e 1943 struct lpfc_dmabuf *mp;
dea3101e 1944
1945 /* Cleanup node for NPort <nlp_DID> */
e8b62011
JS		 1946 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1947 "0900 Cleanup node for NPort x%x "
1948 "Data: x%x x%x x%x\n",
1949 ndlp->nlp_DID, ndlp->nlp_flag,
1950 ndlp->nlp_state, ndlp->nlp_rpi);
2e0fef85 1951 lpfc_dequeue_node(vport, ndlp);
dea3101e 1952
dea3101e 1953 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1954 if ((mb = phba->sli.mbox_active)) {
1955 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1956 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1957 mb->context2 = NULL;
1958 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1959 }
1960 }
33ccf8d1 1961
2e0fef85 1962 spin_lock_irq(&phba->hbalock);
dea3101e 1963 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1964 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
92d7f7b0 1965 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
dea3101e 1966 mp = (struct lpfc_dmabuf *) (mb->context1);
1967 if (mp) {
2e0fef85 1968 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e 1969 kfree(mp);
1970 }
1971 list_del(&mb->list);
1972 mempool_free(mb, phba->mbox_mem_pool);
329f9bc7 1973 lpfc_nlp_put(ndlp);
dea3101e 1974 }
1975 }
2e0fef85 1976 spin_unlock_irq(&phba->hbalock);
dea3101e 1977
07951076 1978 lpfc_els_abort(phba,ndlp);
2e0fef85 1979 spin_lock_irq(shost->host_lock);
c01f3208 1980 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
2e0fef85 1981 spin_unlock_irq(shost->host_lock);
dea3101e 1982
5024ab17 1983 ndlp->nlp_last_elscmd = 0;
dea3101e 1984 del_timer_sync(&ndlp->nlp_delayfunc);
1985
dea3101e 1986 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1987 list_del_init(&ndlp->els_retry_evt.evt_listp);
92d7f7b0
JS		 1988 if (!list_empty(&ndlp->dev_loss_evt.evt_listp))
1989 list_del_init(&ndlp->dev_loss_evt.evt_listp);
dea3101e 1990
2e0fef85 1991 lpfc_unreg_rpi(vport, ndlp);
dea3101e 1992
2fe165b6 1993 return 0;
dea3101e 1994}
1995
1996/*
1997 * Check to see if we can free the nlp back to the freelist.
1998 * If we are in the middle of using the nlp in the discovery state
1999 * machine, defer the free till we reach the end of the state machine.
2000 */
329f9bc7 2001static void
2e0fef85 2002lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 2003{
a8adb832 2004 struct lpfc_hba *phba = vport->phba;
1dcb58e5 2005 struct lpfc_rport_data *rdata;
a8adb832
JS		 2006 LPFC_MBOXQ_t *mbox;
2007 int rc;
dea3101e 2008
2009 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
2e0fef85 2010 lpfc_cancel_retry_delay_tmo(vport, ndlp);
dea3101e 2011 }
2012
a8adb832
JS		 2013 if (ndlp->nlp_flag & NLP_DEFER_RM && !ndlp->nlp_rpi) {
2014 /* For this case we need to cleanup the default rpi
2015 * allocated by the firmware.
2016 */
2017 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
2018 != NULL) {
2019 rc = lpfc_reg_login(phba, vport->vpi, ndlp->nlp_DID,
2020 (uint8_t *) &vport->fc_sparam, mbox, 0);
2021 if (rc) {
2022 mempool_free(mbox, phba->mbox_mem_pool);
2023 }
2024 else {
2025 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
2026 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
2027 mbox->vport = vport;
2028 mbox->context2 = 0;
2029 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2030 if (rc == MBX_NOT_FINISHED) {
2031 mempool_free(mbox, phba->mbox_mem_pool);
2032 }
2033 }
2034 }
2035 }
2036
2e0fef85 2037 lpfc_cleanup_node(vport, ndlp);
1dcb58e5 2038
2e0fef85 2039 /*
92d7f7b0
JS		 2040 * We can get here with a non-NULL ndlp->rport because when we
2041 * unregister a rport we don't break the rport/node linkage. So if we
2042 * do, make sure we don't leaving any dangling pointers behind.
2e0fef85 2043 */
92d7f7b0 2044 if (ndlp->rport) {
329f9bc7
JS		 2045 rdata = ndlp->rport->dd_data;
2046 rdata->pnode = NULL;
2047 ndlp->rport = NULL;
dea3101e 2048 }
dea3101e 2049}
2050
2051static int
2e0fef85
JS		 2052lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2053 uint32_t did)
dea3101e 2054{
2e0fef85 2055 D_ID mydid, ndlpdid, matchdid;
dea3101e 2056
2057 if (did == Bcast_DID)
2fe165b6 2058 return 0;
dea3101e 2059
2060 if (ndlp->nlp_DID == 0) {
2fe165b6 2061 return 0;
dea3101e 2062 }
2063
2064 /* First check for Direct match */
2065 if (ndlp->nlp_DID == did)
2fe165b6 2066 return 1;
dea3101e 2067
2068 /* Next check for area/domain identically equals 0 match */
2e0fef85 2069 mydid.un.word = vport->fc_myDID;
dea3101e 2070 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2fe165b6 2071 return 0;
dea3101e 2072 }
2073
2074 matchdid.un.word = did;
2075 ndlpdid.un.word = ndlp->nlp_DID;
2076 if (matchdid.un.b.id == ndlpdid.un.b.id) {
2077 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
2078 (mydid.un.b.area == matchdid.un.b.area)) {
2079 if ((ndlpdid.un.b.domain == 0) &&
2080 (ndlpdid.un.b.area == 0)) {
2081 if (ndlpdid.un.b.id)
2fe165b6 2082 return 1;
dea3101e 2083 }
2fe165b6 2084 return 0;
dea3101e 2085 }
2086
2087 matchdid.un.word = ndlp->nlp_DID;
2088 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
2089 (mydid.un.b.area == ndlpdid.un.b.area)) {
2090 if ((matchdid.un.b.domain == 0) &&
2091 (matchdid.un.b.area == 0)) {
2092 if (matchdid.un.b.id)
2fe165b6 2093 return 1;
dea3101e 2094 }
2095 }
2096 }
2fe165b6 2097 return 0;
dea3101e 2098}
2099
685f0bf7 2100/* Search for a nodelist entry */
2e0fef85
JS		 2101static struct lpfc_nodelist *
2102__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
dea3101e 2103{
2fb9bd8b 2104 struct lpfc_nodelist *ndlp;
dea3101e 2105 uint32_t data1;
2106
2e0fef85
JS		 2107 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2108 if (lpfc_matchdid(vport, ndlp, did)) {
685f0bf7
JS		 2109 data1 = (((uint32_t) ndlp->nlp_state << 24) |
2110 ((uint32_t) ndlp->nlp_xri << 16) |
2111 ((uint32_t) ndlp->nlp_type << 8) |
2112 ((uint32_t) ndlp->nlp_rpi & 0xff));
e8b62011
JS		 2113 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2114 "0929 FIND node DID "
2115 "Data: x%p x%x x%x x%x\n",
2116 ndlp, ndlp->nlp_DID,
2117 ndlp->nlp_flag, data1);
685f0bf7 2118 return ndlp;
dea3101e 2119 }
2120 }
66a9ed66 2121
dea3101e 2122 /* FIND node did <did> NOT FOUND */
e8b62011
JS		 2123 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2124 "0932 FIND node did x%x NOT FOUND.\n", did);
dea3101e 2125 return NULL;
2126}
2127
2128struct lpfc_nodelist *
2e0fef85
JS		 2129lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
2130{
2131 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2132 struct lpfc_nodelist *ndlp;
2133
2134 spin_lock_irq(shost->host_lock);
2135 ndlp = __lpfc_findnode_did(vport, did);
2136 spin_unlock_irq(shost->host_lock);
2137 return ndlp;
2138}
2139
2140struct lpfc_nodelist *
2141lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
dea3101e 2142{
2e0fef85 2143 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 2144 struct lpfc_nodelist *ndlp;
dea3101e 2145
2e0fef85 2146 ndlp = lpfc_findnode_did(vport, did);
c9f8735b 2147 if (!ndlp) {
2e0fef85
JS		 2148 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
2149 lpfc_rscn_payload_check(vport, did) == 0)
dea3101e 2150 return NULL;
2151 ndlp = (struct lpfc_nodelist *)
2e0fef85 2152 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
dea3101e 2153 if (!ndlp)
2154 return NULL;
2e0fef85
JS		 2155 lpfc_nlp_init(vport, ndlp, did);
2156 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2157 spin_lock_irq(shost->host_lock);
dea3101e 2158 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2159 spin_unlock_irq(shost->host_lock);
dea3101e 2160 return ndlp;
2161 }
2e0fef85
JS		 2162 if (vport->fc_flag & FC_RSCN_MODE) {
2163 if (lpfc_rscn_payload_check(vport, did)) {
87af33fe
JS		 2164 /* If we've already recieved a PLOGI from this NPort
2165 * we don't need to try to discover it again.
2166 */
2167 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
2168 return NULL;
2169
2e0fef85 2170 spin_lock_irq(shost->host_lock);
dea3101e 2171 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2172 spin_unlock_irq(shost->host_lock);
c9f8735b
JW		 2173
2174 /* Since this node is marked for discovery,
2175 * delay timeout is not needed.
2176 */
fdcebe28 2177 if (ndlp->nlp_flag & NLP_DELAY_TMO)
2e0fef85 2178 lpfc_cancel_retry_delay_tmo(vport, ndlp);
071fbd3d 2179 } else
dea3101e 2180 ndlp = NULL;
2fe165b6 2181 } else {
87af33fe
JS		 2182 /* If we've already recieved a PLOGI from this NPort,
2183 * or we are already in the process of discovery on it,
2184 * we don't need to try to discover it again.
2185 */
685f0bf7 2186 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
87af33fe
JS		 2187 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
2188 ndlp->nlp_flag & NLP_RCV_PLOGI)
dea3101e 2189 return NULL;
2e0fef85
JS		 2190 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2191 spin_lock_irq(shost->host_lock);
dea3101e 2192 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2193 spin_unlock_irq(shost->host_lock);
dea3101e 2194 }
2195 return ndlp;
2196}
2197
2198/* Build a list of nodes to discover based on the loopmap */
2199void
2e0fef85 2200lpfc_disc_list_loopmap(struct lpfc_vport *vport)
dea3101e 2201{
2e0fef85 2202 struct lpfc_hba *phba = vport->phba;
dea3101e 2203 int j;
2204 uint32_t alpa, index;
2205
2e0fef85 2206 if (!lpfc_is_link_up(phba))
dea3101e 2207 return;
2e0fef85
JS		 2208
2209 if (phba->fc_topology != TOPOLOGY_LOOP)
dea3101e 2210 return;
dea3101e 2211
2212 /* Check for loop map present or not */
2213 if (phba->alpa_map[0]) {
2214 for (j = 1; j <= phba->alpa_map[0]; j++) {
2215 alpa = phba->alpa_map[j];
2e0fef85 2216 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
dea3101e 2217 continue;
2e0fef85 2218 lpfc_setup_disc_node(vport, alpa);
dea3101e 2219 }
2220 } else {
2221 /* No alpamap, so try all alpa's */
2222 for (j = 0; j < FC_MAXLOOP; j++) {
2223 /* If cfg_scan_down is set, start from highest
2224 * ALPA (0xef) to lowest (0x1).
2225 */
3de2a653 2226 if (vport->cfg_scan_down)
dea3101e 2227 index = j;
2228 else
2229 index = FC_MAXLOOP - j - 1;
2230 alpa = lpfcAlpaArray[index];
2e0fef85 2231 if ((vport->fc_myDID & 0xff) == alpa)
dea3101e 2232 continue;
2e0fef85 2233 lpfc_setup_disc_node(vport, alpa);
dea3101e 2234 }
2235 }
2236 return;
2237}
2238
dea3101e 2239void
2e0fef85 2240lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
dea3101e 2241{
dea3101e 2242 LPFC_MBOXQ_t *mbox;
2e0fef85
JS		 2243 struct lpfc_sli *psli = &phba->sli;
2244 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
2245 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
2246 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
2247 int rc;
2248
92d7f7b0
JS		 2249 /*
2250 * if it's not a physical port or if we already send
2251 * clear_la then don't send it.
2252 */
2253 if ((phba->link_state >= LPFC_CLEAR_LA) ||
2254 (vport->port_type != LPFC_PHYSICAL_PORT))
2255 return;
2256
2e0fef85
JS		 2257 /* Link up discovery */
2258 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
2259 phba->link_state = LPFC_CLEAR_LA;
2260 lpfc_clear_la(phba, mbox);
2261 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2262 mbox->vport = vport;
0b727fea 2263 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2e0fef85
JS		 2264 if (rc == MBX_NOT_FINISHED) {
2265 mempool_free(mbox, phba->mbox_mem_pool);
2266 lpfc_disc_flush_list(vport);
2267 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2268 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2269 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
92d7f7b0
JS		 2270 phba->link_state = LPFC_HBA_ERROR;
2271 }
2272 }
2273}
2274
2275/* Reg_vpi to tell firmware to resume normal operations */
2276void
2277lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
2278{
2279 LPFC_MBOXQ_t *regvpimbox;
2280
2281 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2282 if (regvpimbox) {
2283 lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, regvpimbox);
2284 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
2285 regvpimbox->vport = vport;
0b727fea 2286 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
92d7f7b0
JS		 2287 == MBX_NOT_FINISHED) {
2288 mempool_free(regvpimbox, phba->mbox_mem_pool);
2e0fef85
JS		 2289 }
2290 }
2291}
2292
2293/* Start Link up / RSCN discovery on NPR nodes */
2294void
2295lpfc_disc_start(struct lpfc_vport *vport)
2296{
2297 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2298 struct lpfc_hba *phba = vport->phba;
685f0bf7 2299 uint32_t num_sent;
dea3101e 2300 uint32_t clear_la_pending;
685f0bf7 2301 int did_changed;
dea3101e 2302
2e0fef85 2303 if (!lpfc_is_link_up(phba))
dea3101e 2304 return;
2e0fef85
JS		 2305
2306 if (phba->link_state == LPFC_CLEAR_LA)
dea3101e 2307 clear_la_pending = 1;
2308 else
2309 clear_la_pending = 0;
2310
2e0fef85
JS		 2311 if (vport->port_state < LPFC_VPORT_READY)
2312 vport->port_state = LPFC_DISC_AUTH;
dea3101e 2313
2e0fef85
JS		 2314 lpfc_set_disctmo(vport);
2315
2316 if (vport->fc_prevDID == vport->fc_myDID)
dea3101e 2317 did_changed = 0;
2e0fef85 2318 else
dea3101e 2319 did_changed = 1;
2e0fef85
JS		 2320
2321 vport->fc_prevDID = vport->fc_myDID;
2322 vport->num_disc_nodes = 0;
dea3101e 2323
2324 /* Start Discovery state <hba_state> */
e8b62011
JS		 2325 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2326 "0202 Start Discovery hba state x%x "
2327 "Data: x%x x%x x%x\n",
2328 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
2329 vport->fc_adisc_cnt);
dea3101e 2330
2331 /* First do ADISCs - if any */
2e0fef85 2332 num_sent = lpfc_els_disc_adisc(vport);
dea3101e 2333
2334 if (num_sent)
2335 return;
2336
92d7f7b0
JS		 2337 /*
2338 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
2339 * continue discovery.
2340 */
2341 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2342 !(vport->fc_flag & FC_RSCN_MODE)) {
2343 lpfc_issue_reg_vpi(phba, vport);
2344 return;
2345 }
2346
2347 /*
2348 * For SLI2, we need to set port_state to READY and continue
2349 * discovery.
2350 */
2e0fef85 2351 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
dea3101e 2352 /* If we get here, there is nothing to ADISC */
92d7f7b0 2353 if (vport->port_type == LPFC_PHYSICAL_PORT)
2e0fef85 2354 lpfc_issue_clear_la(phba, vport);
2e0fef85 2355
92d7f7b0 2356 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2e0fef85
JS		 2357 vport->num_disc_nodes = 0;
2358 /* go thru NPR nodes and issue ELS PLOGIs */
2359 if (vport->fc_npr_cnt)
2360 lpfc_els_disc_plogi(vport);
2361
2362 if (!vport->num_disc_nodes) {
2363 spin_lock_irq(shost->host_lock);
2364 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2365 spin_unlock_irq(shost->host_lock);
92d7f7b0 2366 lpfc_can_disctmo(vport);
dea3101e 2367 }
2368 }
92d7f7b0 2369 vport->port_state = LPFC_VPORT_READY;
dea3101e 2370 } else {
2371 /* Next do PLOGIs - if any */
2e0fef85 2372 num_sent = lpfc_els_disc_plogi(vport);
dea3101e 2373
2374 if (num_sent)
2375 return;
2376
2e0fef85 2377 if (vport->fc_flag & FC_RSCN_MODE) {
dea3101e 2378 /* Check to see if more RSCNs came in while we
2379 * were processing this one.
2380 */
2e0fef85
JS		 2381 if ((vport->fc_rscn_id_cnt == 0) &&
2382 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
2383 spin_lock_irq(shost->host_lock);
2384 vport->fc_flag &= ~FC_RSCN_MODE;
2385 spin_unlock_irq(shost->host_lock);
92d7f7b0 2386 lpfc_can_disctmo(vport);
2fe165b6 2387 } else
2e0fef85 2388 lpfc_els_handle_rscn(vport);
dea3101e 2389 }
2390 }
2391 return;
2392}
2393
2394/*
2395 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2396 * ring the match the sppecified nodelist.
2397 */
2398static void
2e0fef85 2399lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 2400{
2534ba75 2401 LIST_HEAD(completions);
dea3101e 2402 struct lpfc_sli *psli;
2403 IOCB_t *icmd;
2404 struct lpfc_iocbq *iocb, *next_iocb;
2405 struct lpfc_sli_ring *pring;
dea3101e 2406
2407 psli = &phba->sli;
2408 pring = &psli->ring[LPFC_ELS_RING];
2409
2410 /* Error matching iocb on txq or txcmplq
2411 * First check the txq.
2412 */
2e0fef85 2413 spin_lock_irq(&phba->hbalock);
dea3101e 2414 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2415 if (iocb->context1 != ndlp) {
2416 continue;
2417 }
2418 icmd = &iocb->iocb;
2419 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2420 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2421
2534ba75 2422 list_move_tail(&iocb->list, &completions);
dea3101e 2423 pring->txq_cnt--;
dea3101e 2424 }
2425 }
2426
2427 /* Next check the txcmplq */
2428 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2429 if (iocb->context1 != ndlp) {
2430 continue;
2431 }
2432 icmd = &iocb->iocb;
2e0fef85
JS		 2433 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
2434 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
2534ba75
JS		 2435 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
2436 }
2437 }
2e0fef85 2438 spin_unlock_irq(&phba->hbalock);
dea3101e 2439
2534ba75
JS		 2440 while (!list_empty(&completions)) {
2441 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
92d7f7b0 2442 list_del_init(&iocb->list);
dea3101e 2443
2e0fef85
JS		 2444 if (!iocb->iocb_cmpl)
2445 lpfc_sli_release_iocbq(phba, iocb);
2446 else {
2534ba75
JS		 2447 icmd = &iocb->iocb;
2448 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2449 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2450 (iocb->iocb_cmpl) (phba, iocb, iocb);
2e0fef85 2451 }
dea3101e 2452 }
dea3101e 2453}
2454
2455void
2e0fef85 2456lpfc_disc_flush_list(struct lpfc_vport *vport)
dea3101e 2457{
2458 struct lpfc_nodelist *ndlp, *next_ndlp;
2e0fef85 2459 struct lpfc_hba *phba = vport->phba;
dea3101e 2460
2e0fef85
JS		 2461 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
2462 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7
JS		 2463 nlp_listp) {
2464 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
2465 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
2466 lpfc_free_tx(phba, ndlp);
685f0bf7 2467 }
dea3101e 2468 }
2469 }
dea3101e 2470}
2471
92d7f7b0
JS		 2472void
2473lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
2474{
2475 lpfc_els_flush_rscn(vport);
2476 lpfc_els_flush_cmd(vport);
2477 lpfc_disc_flush_list(vport);
2478}
2479
dea3101e 2480/*****************************************************************************/
2481/*
2482 * NAME: lpfc_disc_timeout
2483 *
2484 * FUNCTION: Fibre Channel driver discovery timeout routine.
2485 *
2486 * EXECUTION ENVIRONMENT: interrupt only
2487 *
2488 * CALLED FROM:
2489 * Timer function
2490 *
2491 * RETURNS:
2492 * none
2493 */
2494/*****************************************************************************/
2495void
2496lpfc_disc_timeout(unsigned long ptr)
2497{
2e0fef85
JS		 2498 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
2499 struct lpfc_hba *phba = vport->phba;
dea3101e 2500 unsigned long flags = 0;
2501
2502 if (unlikely(!phba))
2503 return;
2504
2e0fef85
JS		 2505 if ((vport->work_port_events & WORKER_DISC_TMO) == 0) {
2506 spin_lock_irqsave(&vport->work_port_lock, flags);
2507 vport->work_port_events |= WORKER_DISC_TMO;
2508 spin_unlock_irqrestore(&vport->work_port_lock, flags);
2509
92d7f7b0 2510 spin_lock_irqsave(&phba->hbalock, flags);
dea3101e 2511 if (phba->work_wait)
92d7f7b0
JS		 2512 lpfc_worker_wake_up(phba);
2513 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e 2514 }
dea3101e 2515 return;
2516}
2517
2518static void
2e0fef85 2519lpfc_disc_timeout_handler(struct lpfc_vport *vport)
dea3101e 2520{
2e0fef85
JS		 2521 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2522 struct lpfc_hba *phba = vport->phba;
2523 struct lpfc_sli *psli = &phba->sli;
c9f8735b 2524 struct lpfc_nodelist *ndlp, *next_ndlp;
92d7f7b0 2525 LPFC_MBOXQ_t *initlinkmbox;
dea3101e 2526 int rc, clrlaerr = 0;
2527
2e0fef85 2528 if (!(vport->fc_flag & FC_DISC_TMO))
dea3101e 2529 return;
2530
2e0fef85
JS		 2531 spin_lock_irq(shost->host_lock);
2532 vport->fc_flag &= ~FC_DISC_TMO;
2533 spin_unlock_irq(shost->host_lock);
dea3101e 2534
858c9f6c
JS		 2535 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2536 "disc timeout: state:x%x rtry:x%x flg:x%x",
2537 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
2538
2e0fef85 2539 switch (vport->port_state) {
dea3101e 2540
2541 case LPFC_LOCAL_CFG_LINK:
2e0fef85
JS		 2542 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
2543 * FAN
2544 */
2545 /* FAN timeout */
e8b62011
JS		 2546 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
2547 "0221 FAN timeout\n");
c9f8735b 2548 /* Start discovery by sending FLOGI, clean up old rpis */
2e0fef85 2549 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7
JS		 2550 nlp_listp) {
2551 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
2552 continue;
c9f8735b
JW		 2553 if (ndlp->nlp_type & NLP_FABRIC) {
2554 /* Clean up the ndlp on Fabric connections */
2e0fef85 2555 lpfc_drop_node(vport, ndlp);
87af33fe 2556
2fe165b6 2557 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
c9f8735b
JW		 2558 /* Fail outstanding IO now since device
2559 * is marked for PLOGI.
2560 */
2e0fef85 2561 lpfc_unreg_rpi(vport, ndlp);
c9f8735b
JW		 2562 }
2563 }
92d7f7b0 2564 if (vport->port_state != LPFC_FLOGI) {
92d7f7b0
JS		 2565 lpfc_initial_flogi(vport);
2566 }
dea3101e 2567 break;
2568
92d7f7b0 2569 case LPFC_FDISC:
dea3101e 2570 case LPFC_FLOGI:
2e0fef85 2571 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
dea3101e 2572 /* Initial FLOGI timeout */
e8b62011
JS		 2573 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2574 "0222 Initial %s timeout\n",
87af33fe 2575 vport->vpi ? "FDISC" : "FLOGI");
dea3101e 2576
2577 /* Assume no Fabric and go on with discovery.
2578 * Check for outstanding ELS FLOGI to abort.
2579 */
2580
2581 /* FLOGI failed, so just use loop map to make discovery list */
2e0fef85 2582 lpfc_disc_list_loopmap(vport);
dea3101e 2583
2584 /* Start discovery */
2e0fef85 2585 lpfc_disc_start(vport);
dea3101e 2586 break;
2587
2588 case LPFC_FABRIC_CFG_LINK:
2589 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2590 NameServer login */
e8b62011
JS		 2591 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2592 "0223 Timeout while waiting for "
2593 "NameServer login\n");
dea3101e 2594 /* Next look for NameServer ndlp */
2e0fef85 2595 ndlp = lpfc_findnode_did(vport, NameServer_DID);
dea3101e 2596 if (ndlp)
87af33fe
JS		 2597 lpfc_els_abort(phba, ndlp);
2598
2599 /* ReStart discovery */
2600 goto restart_disc;
dea3101e 2601
2602 case LPFC_NS_QRY:
2603 /* Check for wait for NameServer Rsp timeout */
e8b62011
JS		 2604 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2605 "0224 NameServer Query timeout "
2606 "Data: x%x x%x\n",
2607 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e 2608
92d7f7b0
JS		 2609 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2610 /* Try it one more time */
2611 vport->fc_ns_retry++;
2612 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
2613 vport->fc_ns_retry, 0);
2614 if (rc == 0)
2615 break;
dea3101e 2616 }
92d7f7b0 2617 vport->fc_ns_retry = 0;
dea3101e 2618
87af33fe 2619restart_disc:
92d7f7b0
JS		 2620 /*
2621 * Discovery is over.
2622 * set port_state to PORT_READY if SLI2.
2623 * cmpl_reg_vpi will set port_state to READY for SLI3.
2624 */
2625 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2626 lpfc_issue_reg_vpi(phba, vport);
2627 else { /* NPIV Not enabled */
2628 lpfc_issue_clear_la(phba, vport);
2629 vport->port_state = LPFC_VPORT_READY;
dea3101e 2630 }
2631
2632 /* Setup and issue mailbox INITIALIZE LINK command */
2633 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2634 if (!initlinkmbox) {
e8b62011
JS		 2635 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2636 "0206 Device Discovery "
2637 "completion error\n");
2e0fef85 2638 phba->link_state = LPFC_HBA_ERROR;
dea3101e 2639 break;
2640 }
2641
2642 lpfc_linkdown(phba);
2643 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2644 phba->cfg_link_speed);
2645 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
ed957684 2646 initlinkmbox->vport = vport;
92d7f7b0 2647 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 2648 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
5b8bd0c9 2649 lpfc_set_loopback_flag(phba);
dea3101e 2650 if (rc == MBX_NOT_FINISHED)
2651 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2652
2653 break;
2654
2655 case LPFC_DISC_AUTH:
2656 /* Node Authentication timeout */
e8b62011
JS		 2657 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2658 "0227 Node Authentication timeout\n");
2e0fef85
JS		 2659 lpfc_disc_flush_list(vport);
2660
92d7f7b0
JS		 2661 /*
2662 * set port_state to PORT_READY if SLI2.
2663 * cmpl_reg_vpi will set port_state to READY for SLI3.
2664 */
2665 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2666 lpfc_issue_reg_vpi(phba, vport);
2667 else { /* NPIV Not enabled */
2668 lpfc_issue_clear_la(phba, vport);
2669 vport->port_state = LPFC_VPORT_READY;
dea3101e 2670 }
2671 break;
2672
2e0fef85
JS		 2673 case LPFC_VPORT_READY:
2674 if (vport->fc_flag & FC_RSCN_MODE) {
e8b62011
JS		 2675 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2676 "0231 RSCN timeout Data: x%x "
2677 "x%x\n",
2678 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e 2679
2680 /* Cleanup any outstanding ELS commands */
2e0fef85 2681 lpfc_els_flush_cmd(vport);
dea3101e 2682
2e0fef85
JS		 2683 lpfc_els_flush_rscn(vport);
2684 lpfc_disc_flush_list(vport);
dea3101e 2685 }
2686 break;
2e0fef85 2687
92d7f7b0 2688 default:
e8b62011
JS		 2689 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2690 "0229 Unexpected discovery timeout, "
2691 "vport State x%x\n", vport->port_state);
2e0fef85
JS		 2692 break;
2693 }
2694
2695 switch (phba->link_state) {
2696 case LPFC_CLEAR_LA:
92d7f7b0 2697 /* CLEAR LA timeout */
e8b62011
JS		 2698 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2699 "0228 CLEAR LA timeout\n");
2e0fef85
JS		 2700 clrlaerr = 1;
2701 break;
2702
2703 case LPFC_LINK_UNKNOWN:
2704 case LPFC_WARM_START:
2705 case LPFC_INIT_START:
2706 case LPFC_INIT_MBX_CMDS:
2707 case LPFC_LINK_DOWN:
2708 case LPFC_LINK_UP:
2709 case LPFC_HBA_ERROR:
e8b62011
JS		 2710 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2711 "0230 Unexpected timeout, hba link "
2712 "state x%x\n", phba->link_state);
2e0fef85
JS		 2713 clrlaerr = 1;
2714 break;
92d7f7b0
JS		 2715
2716 case LPFC_HBA_READY:
2717 break;
dea3101e 2718 }
2719
2720 if (clrlaerr) {
2e0fef85 2721 lpfc_disc_flush_list(vport);
a4bc3379 2722 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 2723 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2724 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2e0fef85 2725 vport->port_state = LPFC_VPORT_READY;
dea3101e 2726 }
2727
2728 return;
2729}
2730
dea3101e 2731/*
2732 * This routine handles processing a NameServer REG_LOGIN mailbox
2733 * command upon completion. It is setup in the LPFC_MBOXQ
2734 * as the completion routine when the command is
2735 * handed off to the SLI layer.
2736 */
2737void
2e0fef85 2738lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 2739{
2e0fef85
JS		 2740 MAILBOX_t *mb = &pmb->mb;
2741 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2742 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2743 struct lpfc_vport *vport = pmb->vport;
dea3101e 2744
2745 pmb->context1 = NULL;
2746
dea3101e 2747 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 2748 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 2749 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 2750
2e0fef85
JS		 2751 /*
2752 * Start issuing Fabric-Device Management Interface (FDMI) command to
2753 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
2754 * fdmi-on=2 (supporting RPA/hostnmae)
dea3101e 2755 */
2e0fef85 2756
3de2a653 2757 if (vport->cfg_fdmi_on == 1)
2e0fef85
JS		 2758 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
2759 else
2760 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
dea3101e 2761
329f9bc7
JS		 2762 /* Mailbox took a reference to the node */
2763 lpfc_nlp_put(ndlp);
dea3101e 2764 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2765 kfree(mp);
329f9bc7 2766 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 2767
2768 return;
2769}
2770
685f0bf7
JS		 2771static int
2772lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
2773{
2774 uint16_t *rpi = param;
2775
2776 return ndlp->nlp_rpi == *rpi;
2777}
2778
2779static int
2780lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
2781{
2782 return memcmp(&ndlp->nlp_portname, param,
2783 sizeof(ndlp->nlp_portname)) == 0;
2784}
2785
dea3101e 2786struct lpfc_nodelist *
2e0fef85 2787__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
dea3101e 2788{
21568f53 2789 struct lpfc_nodelist *ndlp;
dea3101e 2790
2e0fef85 2791 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
87af33fe 2792 if (filter(ndlp, param))
685f0bf7
JS		 2793 return ndlp;
2794 }
21568f53 2795 return NULL;
dea3101e 2796}
2797
685f0bf7
JS		 2798/*
2799 * Search node lists for a remote port matching filter criteria
92d7f7b0 2800 * Caller needs to hold host_lock before calling this routine.
685f0bf7
JS		 2801 */
2802struct lpfc_nodelist *
2e0fef85 2803lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
685f0bf7 2804{
2e0fef85 2805 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
685f0bf7
JS		 2806 struct lpfc_nodelist *ndlp;
2807
2e0fef85
JS		 2808 spin_lock_irq(shost->host_lock);
2809 ndlp = __lpfc_find_node(vport, filter, param);
2810 spin_unlock_irq(shost->host_lock);
685f0bf7
JS		 2811 return ndlp;
2812}
2813
2814/*
2815 * This routine looks up the ndlp lists for the given RPI. If rpi found it
2e0fef85 2816 * returns the node list element pointer else return NULL.
685f0bf7
JS		 2817 */
2818struct lpfc_nodelist *
2e0fef85 2819__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
685f0bf7 2820{
2e0fef85 2821 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
685f0bf7
JS		 2822}
2823
2534ba75 2824struct lpfc_nodelist *
2e0fef85 2825lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
2534ba75 2826{
2e0fef85 2827 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2534ba75
JS		 2828 struct lpfc_nodelist *ndlp;
2829
2e0fef85
JS		 2830 spin_lock_irq(shost->host_lock);
2831 ndlp = __lpfc_findnode_rpi(vport, rpi);
2832 spin_unlock_irq(shost->host_lock);
2534ba75
JS		 2833 return ndlp;
2834}
2835
488d1469 2836/*
685f0bf7 2837 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
2e0fef85 2838 * returns the node element list pointer else return NULL.
488d1469
JS		 2839 */
2840struct lpfc_nodelist *
2e0fef85 2841lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
488d1469 2842{
2e0fef85 2843 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
488d1469 2844 struct lpfc_nodelist *ndlp;
488d1469 2845
2e0fef85
JS		 2846 spin_lock_irq(shost->host_lock);
2847 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
2848 spin_unlock_irq(shost->host_lock);
858c9f6c 2849 return ndlp;
488d1469
JS		 2850}
2851
dea3101e 2852void
2e0fef85
JS		 2853lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2854 uint32_t did)
dea3101e 2855{
2856 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
dea3101e 2857 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
92d7f7b0 2858 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
dea3101e 2859 init_timer(&ndlp->nlp_delayfunc);
2860 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2861 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2862 ndlp->nlp_DID = did;
2e0fef85 2863 ndlp->vport = vport;
dea3101e 2864 ndlp->nlp_sid = NLP_NO_SID;
685f0bf7 2865 INIT_LIST_HEAD(&ndlp->nlp_listp);
329f9bc7 2866 kref_init(&ndlp->kref);
858c9f6c
JS		 2867
2868 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2869 "node init: did:x%x",
2870 ndlp->nlp_DID, 0, 0);
2871
dea3101e 2872 return;
2873}
329f9bc7 2874
98c9ea5c
JS		 2875/* This routine releases all resources associated with a specifc NPort's ndlp
2876 * and mempool_free's the nodelist.
2877 */
311464ec 2878static void
329f9bc7
JS		 2879lpfc_nlp_release(struct kref *kref)
2880{
2881 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
2882 kref);
858c9f6c
JS		 2883
2884 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
2885 "node release: did:x%x flg:x%x type:x%x",
2886 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
2887
2e0fef85
JS		 2888 lpfc_nlp_remove(ndlp->vport, ndlp);
2889 mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool);
329f9bc7
JS		 2890}
2891
98c9ea5c
JS		 2892/* This routine bumps the reference count for a ndlp structure to ensure
2893 * that one discovery thread won't free a ndlp while another discovery thread
2894 * is using it.
2895 */
329f9bc7
JS		 2896struct lpfc_nodelist *
2897lpfc_nlp_get(struct lpfc_nodelist *ndlp)
2898{
98c9ea5c
JS		 2899 if (ndlp) {
2900 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
2901 "node get: did:x%x flg:x%x refcnt:x%x",
2902 ndlp->nlp_DID, ndlp->nlp_flag,
2903 atomic_read(&ndlp->kref.refcount));
329f9bc7 2904 kref_get(&ndlp->kref);
98c9ea5c 2905 }
329f9bc7
JS		 2906 return ndlp;
2907}
2908
98c9ea5c
JS		 2909
2910/* This routine decrements the reference count for a ndlp structure. If the
2911 * count goes to 0, this indicates the the associated nodelist should be freed.
2912 */
329f9bc7
JS		 2913int
2914lpfc_nlp_put(struct lpfc_nodelist *ndlp)
2915{
98c9ea5c
JS		 2916 if (ndlp) {
2917 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
2918 "node put: did:x%x flg:x%x refcnt:x%x",
2919 ndlp->nlp_DID, ndlp->nlp_flag,
2920 atomic_read(&ndlp->kref.refcount));
2921 }
329f9bc7
JS		 2922 return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0;
2923}
98c9ea5c
JS		 2924
2925/* This routine free's the specified nodelist if it is not in use
2926 * by any other discovery thread. This routine returns 1 if the ndlp
2927 * is not being used by anyone and has been freed. A return value of
2928 * 0 indicates it is being used by another discovery thread and the
2929 * refcount is left unchanged.
2930 */
2931int
2932lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
2933{
2934 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
2935 "node not used: did:x%x flg:x%x refcnt:x%x",
2936 ndlp->nlp_DID, ndlp->nlp_flag,
2937 atomic_read(&ndlp->kref.refcount));
2938
2939 if (atomic_read(&ndlp->kref.refcount) == 1) {
2940 lpfc_nlp_put(ndlp);
2941 return 1;
2942 }
2943 return 0;
2944}
2945
Linux kernel - Deliverables
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