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[SCSI] lpfc 8.2.2 : Miscellaneous Bug Fixes
[net-next-2.6.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
CommitLineData
dea3101e
JB		 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
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
JB		 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e
JB		 20 *******************************************************************/
21
dea3101e
JB		 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
JB		 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
JB		 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
JB		 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
JS		 109 struct lpfc_hba *phba;
110 struct completion devloss_compl;
111 struct lpfc_work_evt *evtp;
c01f3208
JS		 112
113 rdata = rport->dd_data;
114 ndlp = rdata->pnode;
1a169689 115
c01f3208 116 if (!ndlp) {
92d7f7b0 117 if (rport->scsi_target_id != -1) {
c01f3208 118 printk(KERN_ERR "Cannot find remote node"
92d7f7b0
JS		 119 " for rport in dev_loss_tmo_callbk x%x\n",
120 rport->port_id);
121 }
c01f3208
JS		 122 return;
123 }
124
858c9f6c
JS		 125 vport = ndlp->vport;
126 phba = vport->phba;
127
128 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
129 "rport devlosscb: sid:x%x did:x%x flg:x%x",
130 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
131
132 init_completion(&devloss_compl);
133 evtp = &ndlp->dev_loss_evt;
134
135 if (!list_empty(&evtp->evt_listp))
136 return;
137
138 spin_lock_irq(&phba->hbalock);
139 evtp->evt_arg1 = ndlp;
140 evtp->evt_arg2 = &devloss_compl;
141 evtp->evt = LPFC_EVT_DEV_LOSS;
142 list_add_tail(&evtp->evt_listp, &phba->work_list);
143 if (phba->work_wait)
144 wake_up(phba->work_wait);
145
146 spin_unlock_irq(&phba->hbalock);
147
148 wait_for_completion(&devloss_compl);
149
150 return;
151}
152
153/*
154 * This function is called from the worker thread when dev_loss_tmo
155 * expire.
156 */
157void
158lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
159{
160 struct lpfc_rport_data *rdata;
161 struct fc_rport *rport;
162 struct lpfc_vport *vport;
163 struct lpfc_hba *phba;
164 uint8_t *name;
165 int warn_on = 0;
166
167 rport = ndlp->rport;
168
169 if (!rport)
170 return;
171
172 rdata = rport->dd_data;
173 name = (uint8_t *) &ndlp->nlp_portname;
174 vport = ndlp->vport;
175 phba = vport->phba;
176
177 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
178 "rport devlosstmo:did:x%x type:x%x id:x%x",
179 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
180
181 if (!(vport->load_flag & FC_UNLOADING) &&
182 ndlp->nlp_state == NLP_STE_MAPPED_NODE)
183 return;
184
92d7f7b0 185 if (ndlp->nlp_type & NLP_FABRIC) {
858c9f6c
JS		 186 int put_node;
187 int put_rport;
188
92d7f7b0
JS		 189 /* We will clean up these Nodes in linkup */
190 put_node = rdata->pnode != NULL;
191 put_rport = ndlp->rport != NULL;
192 rdata->pnode = NULL;
193 ndlp->rport = NULL;
194 if (put_node)
195 lpfc_nlp_put(ndlp);
196 if (put_rport)
197 put_device(&rport->dev);
82085718 198 return;
92d7f7b0 199 }
82085718 200
dea3101e 201 if (ndlp->nlp_sid != NLP_NO_SID) {
6e8215e4 202 warn_on = 1;
dea3101e 203 /* flush the target */
51ef4c26
JS		 204 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
205 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
dea3101e 206 }
2e0fef85 207 if (vport->load_flag & FC_UNLOADING)
c01f3208
JS		 208 warn_on = 0;
209
6e8215e4 210 if (warn_on) {
e8b62011
JS		 211 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
212 "0203 Devloss timeout on "
213 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
214 "NPort x%x Data: x%x x%x x%x\n",
215 *name, *(name+1), *(name+2), *(name+3),
216 *(name+4), *(name+5), *(name+6), *(name+7),
217 ndlp->nlp_DID, ndlp->nlp_flag,
218 ndlp->nlp_state, ndlp->nlp_rpi);
6e8215e4 219 } else {
e8b62011
JS		 220 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
221 "0204 Devloss timeout on "
222 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
223 "NPort x%x Data: x%x x%x x%x\n",
224 *name, *(name+1), *(name+2), *(name+3),
225 *(name+4), *(name+5), *(name+6), *(name+7),
226 ndlp->nlp_DID, ndlp->nlp_flag,
227 ndlp->nlp_state, ndlp->nlp_rpi);
6e8215e4
JSEC		 228 }
229
2e0fef85 230 if (!(vport->load_flag & FC_UNLOADING) &&
1dcb58e5 231 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
82085718
JS		 232 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
233 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE))
2e0fef85 234 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
1dcb58e5 235 else {
858c9f6c
JS		 236 int put_node;
237 int put_rport;
238
92d7f7b0
JS		 239 put_node = rdata->pnode != NULL;
240 put_rport = ndlp->rport != NULL;
1dcb58e5
JS		 241 rdata->pnode = NULL;
242 ndlp->rport = NULL;
92d7f7b0
JS		 243 if (put_node)
244 lpfc_nlp_put(ndlp);
245 if (put_rport)
246 put_device(&rport->dev);
1dcb58e5 247 }
92d7f7b0 248}
c01f3208 249
92d7f7b0
JS		 250
251void
252lpfc_worker_wake_up(struct lpfc_hba *phba)
253{
254 wake_up(phba->work_wait);
dea3101e
JB		 255 return;
256}
257
258static void
2e0fef85 259lpfc_work_list_done(struct lpfc_hba *phba)
dea3101e
JB		 260{
261 struct lpfc_work_evt *evtp = NULL;
262 struct lpfc_nodelist *ndlp;
92d7f7b0 263 struct lpfc_vport *vport;
dea3101e
JB		 264 int free_evt;
265
2e0fef85
JS		 266 spin_lock_irq(&phba->hbalock);
267 while (!list_empty(&phba->work_list)) {
dea3101e
JB		 268 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
269 evt_listp);
2e0fef85 270 spin_unlock_irq(&phba->hbalock);
dea3101e 271 free_evt = 1;
2fe165b6 272 switch (evtp->evt) {
858c9f6c 273 case LPFC_EVT_DEV_LOSS_DELAY:
92d7f7b0
JS		 274 free_evt = 0; /* evt is part of ndlp */
275 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
276 vport = ndlp->vport;
277 if (!vport)
278 break;
858c9f6c
JS		 279
280 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
281 "rport devlossdly:did:x%x flg:x%x",
282 ndlp->nlp_DID, ndlp->nlp_flag, 0);
283
92d7f7b0
JS		 284 if (!(vport->load_flag & FC_UNLOADING) &&
285 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
286 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
287 lpfc_disc_state_machine(vport, ndlp, NULL,
288 NLP_EVT_DEVICE_RM);
289 }
290 break;
dea3101e 291 case LPFC_EVT_ELS_RETRY:
2e0fef85 292 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
dea3101e 293 lpfc_els_retry_delay_handler(ndlp);
92d7f7b0 294 free_evt = 0; /* evt is part of ndlp */
dea3101e 295 break;
858c9f6c
JS		 296 case LPFC_EVT_DEV_LOSS:
297 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
298 lpfc_nlp_get(ndlp);
299 lpfc_dev_loss_tmo_handler(ndlp);
300 free_evt = 0;
301 complete((struct completion *)(evtp->evt_arg2));
302 lpfc_nlp_put(ndlp);
303 break;
dea3101e 304 case LPFC_EVT_ONLINE:
2e0fef85
JS		 305 if (phba->link_state < LPFC_LINK_DOWN)
306 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
41415862 307 else
2e0fef85 308 *(int *) (evtp->evt_arg1) = 0;
dea3101e
JB		 309 complete((struct completion *)(evtp->evt_arg2));
310 break;
46fa311e 311 case LPFC_EVT_OFFLINE_PREP:
2e0fef85 312 if (phba->link_state >= LPFC_LINK_DOWN)
46fa311e
JS		 313 lpfc_offline_prep(phba);
314 *(int *)(evtp->evt_arg1) = 0;
315 complete((struct completion *)(evtp->evt_arg2));
316 break;
317 case LPFC_EVT_OFFLINE:
318 lpfc_offline(phba);
41415862
JW		 319 lpfc_sli_brdrestart(phba);
320 *(int *)(evtp->evt_arg1) =
46fa311e
JS		 321 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
322 lpfc_unblock_mgmt_io(phba);
41415862
JW		 323 complete((struct completion *)(evtp->evt_arg2));
324 break;
325 case LPFC_EVT_WARM_START:
46fa311e 326 lpfc_offline(phba);
9290831f 327 lpfc_reset_barrier(phba);
41415862
JW		 328 lpfc_sli_brdreset(phba);
329 lpfc_hba_down_post(phba);
330 *(int *)(evtp->evt_arg1) =
331 lpfc_sli_brdready(phba, HS_MBRDY);
46fa311e 332 lpfc_unblock_mgmt_io(phba);
41415862
JW		 333 complete((struct completion *)(evtp->evt_arg2));
334 break;
335 case LPFC_EVT_KILL:
46fa311e 336 lpfc_offline(phba);
9290831f 337 *(int *)(evtp->evt_arg1)
2e0fef85
JS		 338 = (phba->pport->stopped)
339 ? 0 : lpfc_sli_brdkill(phba);
46fa311e 340 lpfc_unblock_mgmt_io(phba);
dea3101e
JB		 341 complete((struct completion *)(evtp->evt_arg2));
342 break;
343 }
344 if (free_evt)
345 kfree(evtp);
2e0fef85 346 spin_lock_irq(&phba->hbalock);
dea3101e 347 }
2e0fef85 348 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 349
350}
351
858c9f6c 352void
2e0fef85 353lpfc_work_done(struct lpfc_hba *phba)
dea3101e
JB		 354{
355 struct lpfc_sli_ring *pring;
858c9f6c 356 uint32_t ha_copy, status, control, work_port_events;
549e55cd 357 struct lpfc_vport **vports;
51ef4c26 358 struct lpfc_vport *vport;
549e55cd 359 int i;
dea3101e 360
2e0fef85 361 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 362 ha_copy = phba->work_ha;
363 phba->work_ha = 0;
2e0fef85 364 spin_unlock_irq(&phba->hbalock);
dea3101e 365
2fe165b6 366 if (ha_copy & HA_ERATT)
dea3101e
JB		 367 lpfc_handle_eratt(phba);
368
2fe165b6 369 if (ha_copy & HA_MBATT)
dea3101e
JB		 370 lpfc_sli_handle_mb_event(phba);
371
2fe165b6 372 if (ha_copy & HA_LATT)
dea3101e 373 lpfc_handle_latt(phba);
549e55cd
JS		 374 vports = lpfc_create_vport_work_array(phba);
375 if (vports != NULL)
51ef4c26
JS		 376 for(i = 0; i < LPFC_MAX_VPORTS; i++) {
377 /*
378 * We could have no vports in array if unloading, so if
379 * this happens then just use the pport
380 */
381 if (vports[i] == NULL && i == 0)
382 vport = phba->pport;
383 else
384 vport = vports[i];
385 if (vport == NULL)
386 break;
387 work_port_events = vport->work_port_events;
549e55cd 388 if (work_port_events & WORKER_DISC_TMO)
51ef4c26 389 lpfc_disc_timeout_handler(vport);
549e55cd 390 if (work_port_events & WORKER_ELS_TMO)
51ef4c26 391 lpfc_els_timeout_handler(vport);
549e55cd
JS		 392 if (work_port_events & WORKER_HB_TMO)
393 lpfc_hb_timeout_handler(phba);
394 if (work_port_events & WORKER_MBOX_TMO)
395 lpfc_mbox_timeout_handler(phba);
396 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
397 lpfc_unblock_fabric_iocbs(phba);
398 if (work_port_events & WORKER_FDMI_TMO)
51ef4c26 399 lpfc_fdmi_timeout_handler(vport);
549e55cd
JS		 400 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
401 lpfc_ramp_down_queue_handler(phba);
402 if (work_port_events & WORKER_RAMP_UP_QUEUE)
403 lpfc_ramp_up_queue_handler(phba);
51ef4c26
JS		 404 spin_lock_irq(&vport->work_port_lock);
405 vport->work_port_events &= ~work_port_events;
406 spin_unlock_irq(&vport->work_port_lock);
92d7f7b0 407 }
549e55cd 408 lpfc_destroy_vport_work_array(vports);
dea3101e 409
858c9f6c
JS		 410 pring = &phba->sli.ring[LPFC_ELS_RING];
411 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
412 status >>= (4*LPFC_ELS_RING);
413 if ((status & HA_RXMASK)
414 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
415 if (pring->flag & LPFC_STOP_IOCB_MASK) {
416 pring->flag |= LPFC_DEFERRED_RING_EVENT;
417 } else {
418 lpfc_sli_handle_slow_ring_event(phba, pring,
419 (status &
420 HA_RXMASK));
421 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
422 }
423 /*
424 * Turn on Ring interrupts
425 */
426 spin_lock_irq(&phba->hbalock);
427 control = readl(phba->HCregaddr);
428 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
a58cbd52
JS		 429 lpfc_debugfs_slow_ring_trc(phba,
430 "WRK Enable ring: cntl:x%x hacopy:x%x",
431 control, ha_copy, 0);
432
858c9f6c 433 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
dea3101e
JB		 434 writel(control, phba->HCregaddr);
435 readl(phba->HCregaddr); /* flush */
dea3101e 436 }
a58cbd52
JS		 437 else {
438 lpfc_debugfs_slow_ring_trc(phba,
439 "WRK Ring ok: cntl:x%x hacopy:x%x",
440 control, ha_copy, 0);
441 }
858c9f6c 442 spin_unlock_irq(&phba->hbalock);
dea3101e 443 }
2e0fef85 444 lpfc_work_list_done(phba);
dea3101e
JB		 445}
446
447static int
2e0fef85
JS		 448check_work_wait_done(struct lpfc_hba *phba)
449{
92d7f7b0 450 struct lpfc_vport *vport;
549e55cd 451 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
858c9f6c 452 int rc = 0;
ed957684 453
2e0fef85 454 spin_lock_irq(&phba->hbalock);
92d7f7b0
JS		 455 list_for_each_entry(vport, &phba->port_list, listentry) {
456 if (vport->work_port_events) {
457 rc = 1;
549e55cd 458 break;
92d7f7b0
JS		 459 }
460 }
549e55cd
JS		 461 if (rc || phba->work_ha || (!list_empty(&phba->work_list)) ||
462 kthread_should_stop() || pring->flag & LPFC_DEFERRED_RING_EVENT) {
858c9f6c 463 rc = 1;
92d7f7b0 464 phba->work_found++;
549e55cd 465 } else
92d7f7b0 466 phba->work_found = 0;
2e0fef85
JS		 467 spin_unlock_irq(&phba->hbalock);
468 return rc;
dea3101e
JB		 469}
470
92d7f7b0 471
dea3101e
JB		 472int
473lpfc_do_work(void *p)
474{
475 struct lpfc_hba *phba = p;
476 int rc;
7259f0d0 477 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq);
dea3101e
JB		 478
479 set_user_nice(current, -20);
480 phba->work_wait = &work_waitq;
92d7f7b0 481 phba->work_found = 0;
dea3101e
JB		 482
483 while (1) {
484
485 rc = wait_event_interruptible(work_waitq,
92d7f7b0
JS		 486 check_work_wait_done(phba));
487
dea3101e
JB		 488 BUG_ON(rc);
489
490 if (kthread_should_stop())
491 break;
492
493 lpfc_work_done(phba);
494
92d7f7b0
JS		 495 /* If there is alot of slow ring work, like during link up
496 * check_work_wait_done() may cause this thread to not give
497 * up the CPU for very long periods of time. This may cause
498 * soft lockups or other problems. To avoid these situations
499 * give up the CPU here after LPFC_MAX_WORKER_ITERATION
500 * consecutive iterations.
501 */
502 if (phba->work_found >= LPFC_MAX_WORKER_ITERATION) {
503 phba->work_found = 0;
504 schedule();
505 }
dea3101e
JB		 506 }
507 phba->work_wait = NULL;
508 return 0;
509}
510
511/*
512 * This is only called to handle FC worker events. Since this a rare
513 * occurance, we allocate a struct lpfc_work_evt structure here instead of
514 * embedding it in the IOCB.
515 */
516int
2e0fef85 517lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
dea3101e
JB		 518 uint32_t evt)
519{
520 struct lpfc_work_evt *evtp;
ed957684 521 unsigned long flags;
dea3101e
JB		 522
523 /*
524 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
525 * be queued to worker thread for processing
526 */
92d7f7b0 527 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
dea3101e
JB		 528 if (!evtp)
529 return 0;
530
531 evtp->evt_arg1 = arg1;
532 evtp->evt_arg2 = arg2;
533 evtp->evt = evt;
534
ed957684 535 spin_lock_irqsave(&phba->hbalock, flags);
071fbd3d 536 list_add_tail(&evtp->evt_listp, &phba->work_list);
dea3101e 537 if (phba->work_wait)
92d7f7b0 538 lpfc_worker_wake_up(phba);
ed957684 539 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e
JB		 540
541 return 1;
542}
543
92d7f7b0
JS		 544void
545lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
546{
547 struct lpfc_hba *phba = vport->phba;
548 struct lpfc_nodelist *ndlp, *next_ndlp;
549 int rc;
550
551 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
552 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
553 continue;
554
555 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN)
556 lpfc_unreg_rpi(vport, ndlp);
557
558 /* Leave Fabric nodes alone on link down */
559 if (!remove && ndlp->nlp_type & NLP_FABRIC)
560 continue;
561 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
562 remove
563 ? NLP_EVT_DEVICE_RM
564 : NLP_EVT_DEVICE_RECOVERY);
565 }
566 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
567 lpfc_mbx_unreg_vpi(vport);
568 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
569 }
570}
571
572static void
573lpfc_linkdown_port(struct lpfc_vport *vport)
574{
575 struct lpfc_nodelist *ndlp, *next_ndlp;
576 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
577
578 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
579
858c9f6c
JS		 580 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
581 "Link Down: state:x%x rtry:x%x flg:x%x",
582 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
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
592 /* free any ndlp's on unused list */
593 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp)
92d7f7b0
JS		 594 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
595 lpfc_drop_node(vport, ndlp);
596
597 /* Turn off discovery timer if its running */
598 lpfc_can_disctmo(vport);
599}
600
dea3101e 601int
685f0bf7 602lpfc_linkdown(struct lpfc_hba *phba)
dea3101e 603{
2e0fef85
JS		 604 struct lpfc_vport *vport = phba->pport;
605 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
549e55cd 606 struct lpfc_vport **vports;
685f0bf7 607 LPFC_MBOXQ_t *mb;
549e55cd 608 int i;
dea3101e 609
2e0fef85
JS		 610 if (phba->link_state == LPFC_LINK_DOWN) {
611 return 0;
c9f8735b 612 }
2e0fef85 613 spin_lock_irq(&phba->hbalock);
92d7f7b0 614 if (phba->link_state > LPFC_LINK_DOWN) {
2e0fef85 615 phba->link_state = LPFC_LINK_DOWN;
92d7f7b0
JS		 616 phba->pport->fc_flag &= ~FC_LBIT;
617 }
2e0fef85 618 spin_unlock_irq(&phba->hbalock);
549e55cd
JS		 619 vports = lpfc_create_vport_work_array(phba);
620 if (vports != NULL)
621 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) {
622 /* Issue a LINK DOWN event to all nodes */
623 lpfc_linkdown_port(vports[i]);
624 }
625 lpfc_destroy_vport_work_array(vports);
dea3101e 626 /* Clean up any firmware default rpi's */
2e0fef85
JS		 627 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
628 if (mb) {
92d7f7b0 629 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
ed957684 630 mb->vport = vport;
2e0fef85 631 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
dea3101e
JB		 632 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
633 == MBX_NOT_FINISHED) {
2e0fef85 634 mempool_free(mb, phba->mbox_mem_pool);
dea3101e
JB		 635 }
636 }
637
dea3101e 638 /* Setup myDID for link up if we are in pt2pt mode */
92d7f7b0
JS		 639 if (phba->pport->fc_flag & FC_PT2PT) {
640 phba->pport->fc_myDID = 0;
2e0fef85
JS		 641 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
642 if (mb) {
dea3101e 643 lpfc_config_link(phba, mb);
92d7f7b0 644 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
ed957684 645 mb->vport = vport;
2e0fef85
JS		 646 if (lpfc_sli_issue_mbox(phba, mb,
647 (MBX_NOWAIT | MBX_STOP_IOCB))
dea3101e 648 == MBX_NOT_FINISHED) {
2e0fef85 649 mempool_free(mb, phba->mbox_mem_pool);
dea3101e
JB		 650 }
651 }
2e0fef85 652 spin_lock_irq(shost->host_lock);
92d7f7b0 653 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
2e0fef85 654 spin_unlock_irq(shost->host_lock);
dea3101e 655 }
2e0fef85 656
92d7f7b0
JS		 657 return 0;
658}
dea3101e 659
92d7f7b0
JS		 660static void
661lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
662{
663 struct lpfc_nodelist *ndlp;
dea3101e 664
92d7f7b0
JS		 665 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
666 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
667 continue;
668
669 if (ndlp->nlp_type & NLP_FABRIC) {
670 /* On Linkup its safe to clean up the ndlp
671 * from Fabric connections.
672 */
673 if (ndlp->nlp_DID != Fabric_DID)
674 lpfc_unreg_rpi(vport, ndlp);
675 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
676 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
677 /* Fail outstanding IO now since device is
678 * marked for PLOGI.
679 */
680 lpfc_unreg_rpi(vport, ndlp);
681 }
682 }
dea3101e
JB		 683}
684
92d7f7b0
JS		 685static void
686lpfc_linkup_port(struct lpfc_vport *vport)
dea3101e 687{
92d7f7b0 688 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 689 struct lpfc_nodelist *ndlp, *next_ndlp;
92d7f7b0
JS		 690 struct lpfc_hba *phba = vport->phba;
691
692 if ((vport->load_flag & FC_UNLOADING) != 0)
693 return;
694
858c9f6c
JS		 695 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
696 "Link Up: top:x%x speed:x%x flg:x%x",
697 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
698
92d7f7b0
JS		 699 /* If NPIV is not enabled, only bring the physical port up */
700 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
701 (vport != phba->pport))
702 return;
dea3101e 703
2e0fef85 704 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
d2873e4c 705
2e0fef85 706 spin_lock_irq(shost->host_lock);
2e0fef85
JS		 707 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
708 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
709 vport->fc_flag |= FC_NDISC_ACTIVE;
710 vport->fc_ns_retry = 0;
711 spin_unlock_irq(shost->host_lock);
dea3101e 712
92d7f7b0
JS		 713 if (vport->fc_flag & FC_LBIT)
714 lpfc_linkup_cleanup_nodes(vport);
dea3101e 715
92d7f7b0 716 /* free any ndlp's in unused state */
2e0fef85 717 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
92d7f7b0 718 nlp_listp)
685f0bf7 719 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2e0fef85 720 lpfc_drop_node(vport, ndlp);
92d7f7b0
JS		 721}
722
723static int
724lpfc_linkup(struct lpfc_hba *phba)
725{
549e55cd
JS		 726 struct lpfc_vport **vports;
727 int i;
92d7f7b0
JS		 728
729 phba->link_state = LPFC_LINK_UP;
730
731 /* Unblock fabric iocbs if they are blocked */
732 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
733 del_timer_sync(&phba->fabric_block_timer);
734
549e55cd
JS		 735 vports = lpfc_create_vport_work_array(phba);
736 if (vports != NULL)
737 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++)
738 lpfc_linkup_port(vports[i]);
739 lpfc_destroy_vport_work_array(vports);
92d7f7b0
JS		 740 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
741 lpfc_issue_clear_la(phba, phba->pport);
dea3101e
JB		 742
743 return 0;
744}
745
746/*
747 * This routine handles processing a CLEAR_LA mailbox
748 * command upon completion. It is setup in the LPFC_MBOXQ
749 * as the completion routine when the command is
750 * handed off to the SLI layer.
751 */
752void
2e0fef85 753lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 754{
2e0fef85
JS		 755 struct lpfc_vport *vport = pmb->vport;
756 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
757 struct lpfc_sli *psli = &phba->sli;
758 MAILBOX_t *mb = &pmb->mb;
dea3101e
JB		 759 uint32_t control;
760
dea3101e 761 /* Since we don't do discovery right now, turn these off here */
a4bc3379 762 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e
JB		 763 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
764 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
765
766 /* Check for error */
767 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
92d7f7b0 768 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 769 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
770 "0320 CLEAR_LA mbxStatus error x%x hba "
771 "state x%x\n",
772 mb->mbxStatus, vport->port_state);
2e0fef85 773 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 774 goto out;
775 }
776
92d7f7b0
JS		 777 if (vport->port_type == LPFC_PHYSICAL_PORT)
778 phba->link_state = LPFC_HBA_READY;
779
780 spin_lock_irq(&phba->hbalock);
781 psli->sli_flag |= LPFC_PROCESS_LA;
782 control = readl(phba->HCregaddr);
783 control |= HC_LAINT_ENA;
784 writel(control, phba->HCregaddr);
785 readl(phba->HCregaddr); /* flush */
786 spin_unlock_irq(&phba->hbalock);
787 return;
dea3101e 788
2e0fef85
JS		 789 vport->num_disc_nodes = 0;
790 /* go thru NPR nodes and issue ELS PLOGIs */
791 if (vport->fc_npr_cnt)
792 lpfc_els_disc_plogi(vport);
dea3101e 793
2e0fef85
JS		 794 if (!vport->num_disc_nodes) {
795 spin_lock_irq(shost->host_lock);
796 vport->fc_flag &= ~FC_NDISC_ACTIVE;
797 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 798 }
799
2e0fef85 800 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 801
802out:
803 /* Device Discovery completes */
e8b62011
JS		 804 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
805 "0225 Device Discovery completes\n");
2e0fef85 806 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 807
2e0fef85
JS		 808 spin_lock_irq(shost->host_lock);
809 vport->fc_flag &= ~(FC_ABORT_DISCOVERY | FC_ESTABLISH_LINK);
810 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 811
812 del_timer_sync(&phba->fc_estabtmo);
813
2e0fef85 814 lpfc_can_disctmo(vport);
dea3101e
JB		 815
816 /* turn on Link Attention interrupts */
2e0fef85
JS		 817
818 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 819 psli->sli_flag |= LPFC_PROCESS_LA;
820 control = readl(phba->HCregaddr);
821 control |= HC_LAINT_ENA;
822 writel(control, phba->HCregaddr);
823 readl(phba->HCregaddr); /* flush */
2e0fef85 824 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 825
826 return;
827}
828
2e0fef85 829
dea3101e 830static void
25594c6b 831lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 832{
2e0fef85 833 struct lpfc_vport *vport = pmb->vport;
dea3101e 834
25594c6b 835 if (pmb->mb.mbxStatus)
dea3101e 836 goto out;
dea3101e 837
25594c6b
JW		 838 mempool_free(pmb, phba->mbox_mem_pool);
839
840 if (phba->fc_topology == TOPOLOGY_LOOP &&
2e0fef85
JS		 841 vport->fc_flag & FC_PUBLIC_LOOP &&
842 !(vport->fc_flag & FC_LBIT)) {
25594c6b 843 /* Need to wait for FAN - use discovery timer
2e0fef85 844 * for timeout. port_state is identically
25594c6b
JW		 845 * LPFC_LOCAL_CFG_LINK while waiting for FAN
846 */
2e0fef85 847 lpfc_set_disctmo(vport);
25594c6b 848 return;
92d7f7b0 849 }
dea3101e 850
2e0fef85 851 /* Start discovery by sending a FLOGI. port_state is identically
25594c6b
JW		 852 * LPFC_FLOGI while waiting for FLOGI cmpl
853 */
92d7f7b0
JS		 854 if (vport->port_state != LPFC_FLOGI) {
855 vport->port_state = LPFC_FLOGI;
856 lpfc_set_disctmo(vport);
857 lpfc_initial_flogi(vport);
858 }
25594c6b 859 return;
dea3101e
JB		 860
861out:
e8b62011
JS		 862 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
863 "0306 CONFIG_LINK mbxStatus error x%x "
864 "HBA state x%x\n",
865 pmb->mb.mbxStatus, vport->port_state);
92d7f7b0 866 mempool_free(pmb, phba->mbox_mem_pool);
25594c6b 867
92d7f7b0 868 lpfc_linkdown(phba);
25594c6b 869
e8b62011
JS		 870 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
871 "0200 CONFIG_LINK bad hba state x%x\n",
872 vport->port_state);
dea3101e 873
92d7f7b0 874 lpfc_issue_clear_la(phba, vport);
dea3101e
JB		 875 return;
876}
877
878static void
2e0fef85 879lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 880{
dea3101e
JB		 881 MAILBOX_t *mb = &pmb->mb;
882 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
2e0fef85 883 struct lpfc_vport *vport = pmb->vport;
dea3101e
JB		 884
885
886 /* Check for error */
887 if (mb->mbxStatus) {
888 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 889 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
890 "0319 READ_SPARAM mbxStatus error x%x "
891 "hba state x%x>\n",
892 mb->mbxStatus, vport->port_state);
dea3101e 893 lpfc_linkdown(phba);
dea3101e
JB		 894 goto out;
895 }
896
2e0fef85 897 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
dea3101e 898 sizeof (struct serv_parm));
a12e07bc 899 if (phba->cfg_soft_wwnn)
2e0fef85
JS		 900 u64_to_wwn(phba->cfg_soft_wwnn,
901 vport->fc_sparam.nodeName.u.wwn);
c3f28afa 902 if (phba->cfg_soft_wwpn)
2e0fef85
JS		 903 u64_to_wwn(phba->cfg_soft_wwpn,
904 vport->fc_sparam.portName.u.wwn);
92d7f7b0
JS		 905 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
906 sizeof(vport->fc_nodename));
907 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
908 sizeof(vport->fc_portname));
909 if (vport->port_type == LPFC_PHYSICAL_PORT) {
910 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
911 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
912 }
913
dea3101e
JB		 914 lpfc_mbuf_free(phba, mp->virt, mp->phys);
915 kfree(mp);
2e0fef85 916 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 917 return;
918
919out:
920 pmb->context1 = NULL;
921 lpfc_mbuf_free(phba, mp->virt, mp->phys);
922 kfree(mp);
92d7f7b0
JS		 923 lpfc_issue_clear_la(phba, vport);
924 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 925 return;
926}
927
928static void
92d7f7b0 929lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
dea3101e 930{
92d7f7b0 931 struct lpfc_vport *vport = phba->pport;
dea3101e 932 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
2e0fef85 933 int i;
14691150
JS		 934 struct lpfc_dmabuf *mp;
935 int rc;
936
dea3101e
JB		 937 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
938 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
939
92d7f7b0 940 spin_lock_irq(&phba->hbalock);
2fe165b6 941 switch (la->UlnkSpeed) {
92d7f7b0
JS		 942 case LA_1GHZ_LINK:
943 phba->fc_linkspeed = LA_1GHZ_LINK;
944 break;
945 case LA_2GHZ_LINK:
946 phba->fc_linkspeed = LA_2GHZ_LINK;
947 break;
948 case LA_4GHZ_LINK:
949 phba->fc_linkspeed = LA_4GHZ_LINK;
950 break;
951 case LA_8GHZ_LINK:
952 phba->fc_linkspeed = LA_8GHZ_LINK;
953 break;
954 default:
955 phba->fc_linkspeed = LA_UNKNW_LINK;
956 break;
dea3101e
JB		 957 }
958
959 phba->fc_topology = la->topology;
92d7f7b0 960 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
dea3101e
JB		 961
962 if (phba->fc_topology == TOPOLOGY_LOOP) {
92d7f7b0 963 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
dea3101e 964
92d7f7b0 965 /* Get Loop Map information */
dea3101e 966 if (la->il)
2e0fef85 967 vport->fc_flag |= FC_LBIT;
dea3101e 968
2e0fef85 969 vport->fc_myDID = la->granted_AL_PA;
dea3101e
JB		 970 i = la->un.lilpBde64.tus.f.bdeSize;
971
972 if (i == 0) {
973 phba->alpa_map[0] = 0;
974 } else {
e8b62011 975 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
dea3101e
JB		 976 int numalpa, j, k;
977 union {
978 uint8_t pamap[16];
979 struct {
980 uint32_t wd1;
981 uint32_t wd2;
982 uint32_t wd3;
983 uint32_t wd4;
984 } pa;
985 } un;
986 numalpa = phba->alpa_map[0];
987 j = 0;
988 while (j < numalpa) {
989 memset(un.pamap, 0, 16);
990 for (k = 1; j < numalpa; k++) {
991 un.pamap[k - 1] =
992 phba->alpa_map[j + 1];
993 j++;
994 if (k == 16)
995 break;
996 }
997 /* Link Up Event ALPA map */
998 lpfc_printf_log(phba,
92d7f7b0
JS		 999 KERN_WARNING,
1000 LOG_LINK_EVENT,
e8b62011 1001 "1304 Link Up Event "
92d7f7b0
JS		 1002 "ALPA map Data: x%x "
1003 "x%x x%x x%x\n",
92d7f7b0
JS		 1004 un.pa.wd1, un.pa.wd2,
1005 un.pa.wd3, un.pa.wd4);
dea3101e
JB		 1006 }
1007 }
1008 }
1009 } else {
92d7f7b0 1010 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
78b2d852 1011 if (phba->max_vpi && phba->cfg_enable_npiv &&
92d7f7b0
JS		 1012 (phba->sli_rev == 3))
1013 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
1014 }
2e0fef85
JS		 1015 vport->fc_myDID = phba->fc_pref_DID;
1016 vport->fc_flag |= FC_LBIT;
dea3101e 1017 }
92d7f7b0 1018 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 1019
1020 lpfc_linkup(phba);
1021 if (sparam_mbox) {
92d7f7b0 1022 lpfc_read_sparam(phba, sparam_mbox, 0);
2e0fef85 1023 sparam_mbox->vport = vport;
dea3101e 1024 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
14691150 1025 rc = lpfc_sli_issue_mbox(phba, sparam_mbox,
92d7f7b0 1026 (MBX_NOWAIT | MBX_STOP_IOCB));
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
JB		 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;
14691150 1043 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox,
92d7f7b0
JS		 1044 (MBX_NOWAIT | MBX_STOP_IOCB));
1045 if (rc != MBX_NOT_FINISHED)
1046 return;
1047 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
dea3101e 1048 }
92d7f7b0
JS		 1049out:
1050 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1051 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1052 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
1053 vport->port_state, sparam_mbox, cfglink_mbox);
92d7f7b0
JS		 1054 lpfc_issue_clear_la(phba, vport);
1055 return;
dea3101e
JB		 1056}
1057
1058static void
2e0fef85
JS		 1059lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
1060{
dea3101e
JB		 1061 uint32_t control;
1062 struct lpfc_sli *psli = &phba->sli;
1063
1064 lpfc_linkdown(phba);
1065
1066 /* turn on Link Attention interrupts - no CLEAR_LA needed */
2e0fef85 1067 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 1068 psli->sli_flag |= LPFC_PROCESS_LA;
1069 control = readl(phba->HCregaddr);
1070 control |= HC_LAINT_ENA;
1071 writel(control, phba->HCregaddr);
1072 readl(phba->HCregaddr); /* flush */
2e0fef85 1073 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 1074}
1075
1076/*
1077 * This routine handles processing a READ_LA mailbox
1078 * command upon completion. It is setup in the LPFC_MBOXQ
1079 * as the completion routine when the command is
1080 * handed off to the SLI layer.
1081 */
1082void
2e0fef85 1083lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1084{
2e0fef85
JS		 1085 struct lpfc_vport *vport = pmb->vport;
1086 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e
JB		 1087 READ_LA_VAR *la;
1088 MAILBOX_t *mb = &pmb->mb;
1089 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1090
1091 /* Check for error */
1092 if (mb->mbxStatus) {
ed957684 1093 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
e8b62011
JS		 1094 "1307 READ_LA mbox error x%x state x%x\n",
1095 mb->mbxStatus, vport->port_state);
dea3101e 1096 lpfc_mbx_issue_link_down(phba);
2e0fef85 1097 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 1098 goto lpfc_mbx_cmpl_read_la_free_mbuf;
1099 }
1100
1101 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
1102
1103 memcpy(&phba->alpa_map[0], mp->virt, 128);
1104
2e0fef85 1105 spin_lock_irq(shost->host_lock);
c9f8735b 1106 if (la->pb)
2e0fef85 1107 vport->fc_flag |= FC_BYPASSED_MODE;
c9f8735b 1108 else
2e0fef85
JS		 1109 vport->fc_flag &= ~FC_BYPASSED_MODE;
1110 spin_unlock_irq(shost->host_lock);
c9f8735b 1111
dea3101e 1112 if (((phba->fc_eventTag + 1) < la->eventTag) ||
92d7f7b0 1113 (phba->fc_eventTag == la->eventTag)) {
dea3101e 1114 phba->fc_stat.LinkMultiEvent++;
2e0fef85 1115 if (la->attType == AT_LINK_UP)
dea3101e
JB		 1116 if (phba->fc_eventTag != 0)
1117 lpfc_linkdown(phba);
92d7f7b0 1118 }
dea3101e
JB		 1119
1120 phba->fc_eventTag = la->eventTag;
1121
1122 if (la->attType == AT_LINK_UP) {
1123 phba->fc_stat.LinkUp++;
2e0fef85 1124 if (phba->link_flag & LS_LOOPBACK_MODE) {
5b8bd0c9 1125 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
e8b62011
JS		 1126 "1306 Link Up Event in loop back mode "
1127 "x%x received Data: x%x x%x x%x x%x\n",
1128 la->eventTag, phba->fc_eventTag,
1129 la->granted_AL_PA, la->UlnkSpeed,
1130 phba->alpa_map[0]);
5b8bd0c9
JS		 1131 } else {
1132 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011
JS		 1133 "1303 Link Up Event x%x received "
1134 "Data: x%x x%x x%x x%x\n",
1135 la->eventTag, phba->fc_eventTag,
1136 la->granted_AL_PA, la->UlnkSpeed,
1137 phba->alpa_map[0]);
5b8bd0c9 1138 }
92d7f7b0 1139 lpfc_mbx_process_link_up(phba, la);
dea3101e
JB		 1140 } else {
1141 phba->fc_stat.LinkDown++;
1142 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 1143 "1305 Link Down Event x%x received "
dea3101e 1144 "Data: x%x x%x x%x\n",
e8b62011 1145 la->eventTag, phba->fc_eventTag,
2e0fef85 1146 phba->pport->port_state, vport->fc_flag);
dea3101e
JB		 1147 lpfc_mbx_issue_link_down(phba);
1148 }
1149
1150lpfc_mbx_cmpl_read_la_free_mbuf:
1151 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1152 kfree(mp);
1153 mempool_free(pmb, phba->mbox_mem_pool);
1154 return;
1155}
1156
1157/*
1158 * This routine handles processing a REG_LOGIN mailbox
1159 * command upon completion. It is setup in the LPFC_MBOXQ
1160 * as the completion routine when the command is
1161 * handed off to the SLI layer.
1162 */
1163void
2e0fef85 1164lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1165{
2e0fef85 1166 struct lpfc_vport *vport = pmb->vport;
92d7f7b0 1167 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2e0fef85 1168 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
dea3101e 1169
dea3101e
JB		 1170 pmb->context1 = NULL;
1171
1172 /* Good status, call state machine */
2e0fef85 1173 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
dea3101e
JB		 1174 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1175 kfree(mp);
2e0fef85 1176 mempool_free(pmb, phba->mbox_mem_pool);
329f9bc7 1177 lpfc_nlp_put(ndlp);
dea3101e
JB		 1178
1179 return;
1180}
1181
92d7f7b0
JS		 1182static void
1183lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1184{
1185 MAILBOX_t *mb = &pmb->mb;
1186 struct lpfc_vport *vport = pmb->vport;
1187 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1188
1189 switch (mb->mbxStatus) {
1190 case 0x0011:
1191 case 0x0020:
1192 case 0x9700:
e8b62011
JS		 1193 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1194 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
1195 mb->mbxStatus);
92d7f7b0 1196 break;
92d7f7b0
JS		 1197 }
1198 vport->unreg_vpi_cmpl = VPORT_OK;
1199 mempool_free(pmb, phba->mbox_mem_pool);
1200 /*
1201 * This shost reference might have been taken at the beginning of
1202 * lpfc_vport_delete()
1203 */
1204 if (vport->load_flag & FC_UNLOADING)
1205 scsi_host_put(shost);
1206}
1207
1208void
1209lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
1210{
1211 struct lpfc_hba *phba = vport->phba;
1212 LPFC_MBOXQ_t *mbox;
1213 int rc;
1214
1215 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1216 if (!mbox)
1217 return;
1218
1219 lpfc_unreg_vpi(phba, vport->vpi, mbox);
1220 mbox->vport = vport;
1221 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
1222 rc = lpfc_sli_issue_mbox(phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1223 if (rc == MBX_NOT_FINISHED) {
e8b62011
JS		 1224 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
1225 "1800 Could not issue unreg_vpi\n");
92d7f7b0
JS		 1226 mempool_free(mbox, phba->mbox_mem_pool);
1227 vport->unreg_vpi_cmpl = VPORT_ERROR;
1228 }
1229}
1230
1231static void
1232lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1233{
1234 struct lpfc_vport *vport = pmb->vport;
1235 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1236 MAILBOX_t *mb = &pmb->mb;
1237
1238 switch (mb->mbxStatus) {
1239 case 0x0011:
1240 case 0x9601:
1241 case 0x9602:
e8b62011
JS		 1242 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1243 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
1244 mb->mbxStatus);
92d7f7b0
JS		 1245 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1246 spin_lock_irq(shost->host_lock);
1247 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1248 spin_unlock_irq(shost->host_lock);
1249 vport->fc_myDID = 0;
1250 goto out;
1251 }
92d7f7b0
JS		 1252
1253 vport->num_disc_nodes = 0;
1254 /* go thru NPR list and issue ELS PLOGIs */
1255 if (vport->fc_npr_cnt)
1256 lpfc_els_disc_plogi(vport);
1257
1258 if (!vport->num_disc_nodes) {
1259 spin_lock_irq(shost->host_lock);
1260 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1261 spin_unlock_irq(shost->host_lock);
1262 lpfc_can_disctmo(vport);
1263 }
1264 vport->port_state = LPFC_VPORT_READY;
1265
1266out:
1267 mempool_free(pmb, phba->mbox_mem_pool);
1268 return;
1269}
1270
dea3101e
JB		 1271/*
1272 * This routine handles processing a Fabric REG_LOGIN mailbox
1273 * command upon completion. It is setup in the LPFC_MBOXQ
1274 * as the completion routine when the command is
1275 * handed off to the SLI layer.
1276 */
1277void
2e0fef85 1278lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1279{
92d7f7b0 1280 struct lpfc_vport *vport = pmb->vport;
2e0fef85
JS		 1281 MAILBOX_t *mb = &pmb->mb;
1282 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
92d7f7b0 1283 struct lpfc_nodelist *ndlp;
549e55cd
JS		 1284 struct lpfc_vport **vports;
1285 int i;
dea3101e 1286
549e55cd 1287 ndlp = (struct lpfc_nodelist *) pmb->context2;
329f9bc7
JS		 1288 pmb->context1 = NULL;
1289 pmb->context2 = NULL;
dea3101e
JB		 1290 if (mb->mbxStatus) {
1291 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1292 kfree(mp);
329f9bc7
JS		 1293 mempool_free(pmb, phba->mbox_mem_pool);
1294 lpfc_nlp_put(ndlp);
dea3101e 1295
92d7f7b0
JS		 1296 if (phba->fc_topology == TOPOLOGY_LOOP) {
1297 /* FLOGI failed, use loop map to make discovery list */
1298 lpfc_disc_list_loopmap(vport);
1299
1300 /* Start discovery */
1301 lpfc_disc_start(vport);
1302 return;
1303 }
1304
1305 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1306 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1307 "0258 Register Fabric login error: 0x%x\n",
1308 mb->mbxStatus);
dea3101e
JB		 1309 return;
1310 }
1311
dea3101e 1312 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1313 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 1314 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1315
329f9bc7
JS		 1316 lpfc_nlp_put(ndlp); /* Drop the reference from the mbox */
1317
2e0fef85 1318 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
549e55cd
JS		 1319 vports = lpfc_create_vport_work_array(phba);
1320 if (vports != NULL)
1321 for(i = 0;
1322 i < LPFC_MAX_VPORTS && vports[i] != NULL;
1323 i++) {
1324 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
1325 continue;
1326 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
1327 lpfc_initial_fdisc(vports[i]);
1328 else if (phba->sli3_options &
1329 LPFC_SLI3_NPIV_ENABLED) {
1330 lpfc_vport_set_state(vports[i],
1331 FC_VPORT_NO_FABRIC_SUPP);
e8b62011
JS		 1332 lpfc_printf_vlog(vport, KERN_ERR,
1333 LOG_ELS,
1334 "0259 No NPIV "
1335 "Fabric support\n");
549e55cd 1336 }
dea3101e 1337 }
549e55cd 1338 lpfc_destroy_vport_work_array(vports);
92d7f7b0 1339 lpfc_do_scr_ns_plogi(phba, vport);
dea3101e
JB		 1340 }
1341
1342 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1343 kfree(mp);
329f9bc7 1344 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 1345 return;
1346}
1347
1348/*
1349 * This routine handles processing a NameServer REG_LOGIN mailbox
1350 * command upon completion. It is setup in the LPFC_MBOXQ
1351 * as the completion routine when the command is
1352 * handed off to the SLI layer.
1353 */
1354void
2e0fef85 1355lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1356{
2e0fef85
JS		 1357 MAILBOX_t *mb = &pmb->mb;
1358 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1359 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
1360 struct lpfc_vport *vport = pmb->vport;
dea3101e
JB		 1361
1362 if (mb->mbxStatus) {
92d7f7b0 1363out:
329f9bc7 1364 lpfc_nlp_put(ndlp);
dea3101e
JB		 1365 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1366 kfree(mp);
de0c5b32 1367 mempool_free(pmb, phba->mbox_mem_pool);
2e0fef85 1368 lpfc_drop_node(vport, ndlp);
dea3101e 1369
92d7f7b0
JS		 1370 if (phba->fc_topology == TOPOLOGY_LOOP) {
1371 /*
1372 * RegLogin failed, use loop map to make discovery
1373 * list
1374 */
1375 lpfc_disc_list_loopmap(vport);
dea3101e 1376
92d7f7b0
JS		 1377 /* Start discovery */
1378 lpfc_disc_start(vport);
1379 return;
1380 }
1381 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1382 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1383 "0260 Register NameServer error: 0x%x\n",
1384 mb->mbxStatus);
dea3101e
JB		 1385 return;
1386 }
1387
1388 pmb->context1 = NULL;
1389
dea3101e 1390 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1391 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 1392 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1393
2e0fef85
JS		 1394 if (vport->port_state < LPFC_VPORT_READY) {
1395 /* Link up discovery requires Fabric registration. */
92d7f7b0
JS		 1396 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
1397 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
1398 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
1399 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
1400 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
1401
1402 /* Issue SCR just before NameServer GID_FT Query */
1403 lpfc_issue_els_scr(vport, SCR_DID, 0);
dea3101e
JB		 1404 }
1405
2e0fef85 1406 vport->fc_ns_retry = 0;
dea3101e 1407 /* Good status, issue CT Request to NameServer */
92d7f7b0 1408 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
dea3101e 1409 /* Cannot issue NameServer Query, so finish up discovery */
92d7f7b0 1410 goto out;
dea3101e
JB		 1411 }
1412
329f9bc7 1413 lpfc_nlp_put(ndlp);
dea3101e
JB		 1414 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1415 kfree(mp);
2e0fef85 1416 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 1417
1418 return;
1419}
1420
1421static void
2e0fef85 1422lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1423{
2e0fef85
JS		 1424 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1425 struct fc_rport *rport;
dea3101e
JB		 1426 struct lpfc_rport_data *rdata;
1427 struct fc_rport_identifiers rport_ids;
2e0fef85 1428 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1429
1430 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 1431 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1432 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e
JB		 1433 rport_ids.port_id = ndlp->nlp_DID;
1434 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e 1435
329f9bc7
JS		 1436 /*
1437 * We leave our node pointer in rport->dd_data when we unregister a
1438 * FCP target port. But fc_remote_port_add zeros the space to which
1439 * rport->dd_data points. So, if we're reusing a previously
1440 * registered port, drop the reference that we took the last time we
1441 * registered the port.
1442 */
1443 if (ndlp->rport && ndlp->rport->dd_data &&
92d7f7b0 1444 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp) {
329f9bc7
JS		 1445 lpfc_nlp_put(ndlp);
1446 }
858c9f6c
JS		 1447
1448 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
1449 "rport add: did:x%x flg:x%x type x%x",
1450 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1451
2e0fef85 1452 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
329f9bc7 1453 if (!rport || !get_device(&rport->dev)) {
dea3101e
JB		 1454 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1455 "Warning: fc_remote_port_add failed\n");
1456 return;
1457 }
1458
1459 /* initialize static port data */
1460 rport->maxframe_size = ndlp->nlp_maxframe;
1461 rport->supported_classes = ndlp->nlp_class_sup;
dea3101e 1462 rdata = rport->dd_data;
329f9bc7 1463 rdata->pnode = lpfc_nlp_get(ndlp);
23dc04f1
JSEC		 1464
1465 if (ndlp->nlp_type & NLP_FCP_TARGET)
1466 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1467 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1468 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1469
1470
1471 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1472 fc_remote_port_rolechg(rport, rport_ids.roles);
1473
071fbd3d 1474 if ((rport->scsi_target_id != -1) &&
92d7f7b0 1475 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
071fbd3d
JS		 1476 ndlp->nlp_sid = rport->scsi_target_id;
1477 }
19a7b4ae
JSEC		 1478 return;
1479}
1480
1481static void
2e0fef85 1482lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
19a7b4ae
JSEC		 1483{
1484 struct fc_rport *rport = ndlp->rport;
c01f3208 1485
858c9f6c
JS		 1486 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
1487 "rport delete: did:x%x flg:x%x type x%x",
1488 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1489
19a7b4ae 1490 fc_remote_port_delete(rport);
dea3101e
JB		 1491
1492 return;
1493}
1494
de0c5b32 1495static void
2e0fef85 1496lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
dea3101e 1497{
2e0fef85
JS		 1498 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1499
1500 spin_lock_irq(shost->host_lock);
de0c5b32
JS		 1501 switch (state) {
1502 case NLP_STE_UNUSED_NODE:
2e0fef85 1503 vport->fc_unused_cnt += count;
de0c5b32
JS		 1504 break;
1505 case NLP_STE_PLOGI_ISSUE:
2e0fef85 1506 vport->fc_plogi_cnt += count;
de0c5b32
JS		 1507 break;
1508 case NLP_STE_ADISC_ISSUE:
2e0fef85 1509 vport->fc_adisc_cnt += count;
dea3101e 1510 break;
de0c5b32 1511 case NLP_STE_REG_LOGIN_ISSUE:
2e0fef85 1512 vport->fc_reglogin_cnt += count;
de0c5b32
JS		 1513 break;
1514 case NLP_STE_PRLI_ISSUE:
2e0fef85 1515 vport->fc_prli_cnt += count;
de0c5b32
JS		 1516 break;
1517 case NLP_STE_UNMAPPED_NODE:
2e0fef85 1518 vport->fc_unmap_cnt += count;
de0c5b32
JS		 1519 break;
1520 case NLP_STE_MAPPED_NODE:
2e0fef85 1521 vport->fc_map_cnt += count;
de0c5b32
JS		 1522 break;
1523 case NLP_STE_NPR_NODE:
2e0fef85 1524 vport->fc_npr_cnt += count;
de0c5b32
JS		 1525 break;
1526 }
2e0fef85 1527 spin_unlock_irq(shost->host_lock);
de0c5b32 1528}
66a9ed66 1529
de0c5b32 1530static void
2e0fef85 1531lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
de0c5b32
JS		 1532 int old_state, int new_state)
1533{
2e0fef85
JS		 1534 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1535
de0c5b32
JS		 1536 if (new_state == NLP_STE_UNMAPPED_NODE) {
1537 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1538 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1539 ndlp->nlp_type |= NLP_FC_NODE;
1540 }
1541 if (new_state == NLP_STE_MAPPED_NODE)
1542 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1543 if (new_state == NLP_STE_NPR_NODE)
1544 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
1545
1546 /* Transport interface */
1547 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
1548 old_state == NLP_STE_UNMAPPED_NODE)) {
2e0fef85
JS		 1549 vport->phba->nport_event_cnt++;
1550 lpfc_unregister_remote_port(ndlp);
de0c5b32 1551 }
dea3101e 1552
de0c5b32
JS		 1553 if (new_state == NLP_STE_MAPPED_NODE ||
1554 new_state == NLP_STE_UNMAPPED_NODE) {
2e0fef85 1555 vport->phba->nport_event_cnt++;
858c9f6c
JS		 1556 /*
1557 * Tell the fc transport about the port, if we haven't
1558 * already. If we have, and it's a scsi entity, be
1559 * sure to unblock any attached scsi devices
1560 */
1561 lpfc_register_remote_port(vport, ndlp);
de0c5b32 1562 }
858c9f6c
JS		 1563 /*
1564 * if we added to Mapped list, but the remote port
1565 * registration failed or assigned a target id outside
1566 * our presentable range - move the node to the
1567 * Unmapped List
1568 */
de0c5b32
JS		 1569 if (new_state == NLP_STE_MAPPED_NODE &&
1570 (!ndlp->rport ||
1571 ndlp->rport->scsi_target_id == -1 ||
1572 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
2e0fef85 1573 spin_lock_irq(shost->host_lock);
de0c5b32 1574 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
2e0fef85
JS		 1575 spin_unlock_irq(shost->host_lock);
1576 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1577 }
de0c5b32
JS		 1578}
1579
685f0bf7
JS		 1580static char *
1581lpfc_nlp_state_name(char *buffer, size_t size, int state)
1582{
1583 static char *states[] = {
1584 [NLP_STE_UNUSED_NODE] = "UNUSED",
1585 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
1586 [NLP_STE_ADISC_ISSUE] = "ADISC",
1587 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
1588 [NLP_STE_PRLI_ISSUE] = "PRLI",
1589 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
1590 [NLP_STE_MAPPED_NODE] = "MAPPED",
1591 [NLP_STE_NPR_NODE] = "NPR",
1592 };
1593
1594 if (state < ARRAY_SIZE(states) && states[state])
1595 strlcpy(buffer, states[state], size);
1596 else
1597 snprintf(buffer, size, "unknown (%d)", state);
1598 return buffer;
1599}
1600
de0c5b32 1601void
2e0fef85
JS		 1602lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1603 int state)
de0c5b32 1604{
2e0fef85 1605 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
de0c5b32 1606 int old_state = ndlp->nlp_state;
685f0bf7 1607 char name1[16], name2[16];
de0c5b32 1608
e8b62011
JS		 1609 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1610 "0904 NPort state transition x%06x, %s -> %s\n",
1611 ndlp->nlp_DID,
1612 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
1613 lpfc_nlp_state_name(name2, sizeof(name2), state));
858c9f6c
JS		 1614
1615 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
1616 "node statechg did:x%x old:%d ste:%d",
1617 ndlp->nlp_DID, old_state, state);
1618
de0c5b32
JS		 1619 if (old_state == NLP_STE_NPR_NODE &&
1620 (ndlp->nlp_flag & NLP_DELAY_TMO) != 0 &&
1621 state != NLP_STE_NPR_NODE)
2e0fef85 1622 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32
JS		 1623 if (old_state == NLP_STE_UNMAPPED_NODE) {
1624 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1625 ndlp->nlp_type &= ~NLP_FC_NODE;
1626 }
1627
685f0bf7 1628 if (list_empty(&ndlp->nlp_listp)) {
2e0fef85
JS		 1629 spin_lock_irq(shost->host_lock);
1630 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
1631 spin_unlock_irq(shost->host_lock);
685f0bf7 1632 } else if (old_state)
2e0fef85 1633 lpfc_nlp_counters(vport, old_state, -1);
de0c5b32
JS		 1634
1635 ndlp->nlp_state = state;
2e0fef85
JS		 1636 lpfc_nlp_counters(vport, state, 1);
1637 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
de0c5b32
JS		 1638}
1639
1640void
2e0fef85 1641lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 1642{
2e0fef85
JS		 1643 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1644
de0c5b32 1645 if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
2e0fef85 1646 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32 1647 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2e0fef85
JS		 1648 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
1649 spin_lock_irq(shost->host_lock);
685f0bf7 1650 list_del_init(&ndlp->nlp_listp);
2e0fef85 1651 spin_unlock_irq(shost->host_lock);
858c9f6c
JS		 1652 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
1653 NLP_STE_UNUSED_NODE);
de0c5b32
JS		 1654}
1655
1656void
2e0fef85 1657lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 1658{
51ef4c26 1659 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
329f9bc7 1660 lpfc_nlp_put(ndlp);
dea3101e
JB		 1661}
1662
1663/*
1664 * Start / ReStart rescue timer for Discovery / RSCN handling
1665 */
1666void
2e0fef85 1667lpfc_set_disctmo(struct lpfc_vport *vport)
dea3101e 1668{
2e0fef85
JS		 1669 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1670 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1671 uint32_t tmo;
1672
2e0fef85 1673 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
c9f8735b
JW		 1674 /* For FAN, timeout should be greater then edtov */
1675 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1676 } else {
1677 /* Normal discovery timeout should be > then ELS/CT timeout
1678 * FC spec states we need 3 * ratov for CT requests
1679 */
1680 tmo = ((phba->fc_ratov * 3) + 3);
1681 }
dea3101e 1682
858c9f6c
JS		 1683
1684 if (!timer_pending(&vport->fc_disctmo)) {
1685 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1686 "set disc timer: tmo:x%x state:x%x flg:x%x",
1687 tmo, vport->port_state, vport->fc_flag);
1688 }
1689
2e0fef85
JS		 1690 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
1691 spin_lock_irq(shost->host_lock);
1692 vport->fc_flag |= FC_DISC_TMO;
1693 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 1694
1695 /* Start Discovery Timer state <hba_state> */
e8b62011
JS		 1696 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1697 "0247 Start Discovery Timer state x%x "
1698 "Data: x%x x%lx x%x x%x\n",
1699 vport->port_state, tmo,
1700 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
1701 vport->fc_adisc_cnt);
dea3101e
JB		 1702
1703 return;
1704}
1705
1706/*
1707 * Cancel rescue timer for Discovery / RSCN handling
1708 */
1709int
2e0fef85 1710lpfc_can_disctmo(struct lpfc_vport *vport)
dea3101e 1711{
2e0fef85 1712 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85
JS		 1713 unsigned long iflags;
1714
858c9f6c
JS		 1715 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1716 "can disc timer: state:x%x rtry:x%x flg:x%x",
1717 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
1718
dea3101e 1719 /* Turn off discovery timer if its running */
2e0fef85
JS		 1720 if (vport->fc_flag & FC_DISC_TMO) {
1721 spin_lock_irqsave(shost->host_lock, iflags);
1722 vport->fc_flag &= ~FC_DISC_TMO;
1723 spin_unlock_irqrestore(shost->host_lock, iflags);
1724 del_timer_sync(&vport->fc_disctmo);
1725 spin_lock_irqsave(&vport->work_port_lock, iflags);
1726 vport->work_port_events &= ~WORKER_DISC_TMO;
1727 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
dea3101e
JB		 1728 }
1729
1730 /* Cancel Discovery Timer state <hba_state> */
e8b62011
JS		 1731 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1732 "0248 Cancel Discovery Timer state x%x "
1733 "Data: x%x x%x x%x\n",
1734 vport->port_state, vport->fc_flag,
1735 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
2fe165b6 1736 return 0;
dea3101e
JB		 1737}
1738
1739/*
1740 * Check specified ring for outstanding IOCB on the SLI queue
1741 * Return true if iocb matches the specified nport
1742 */
1743int
2e0fef85
JS		 1744lpfc_check_sli_ndlp(struct lpfc_hba *phba,
1745 struct lpfc_sli_ring *pring,
1746 struct lpfc_iocbq *iocb,
1747 struct lpfc_nodelist *ndlp)
dea3101e 1748{
2e0fef85
JS		 1749 struct lpfc_sli *psli = &phba->sli;
1750 IOCB_t *icmd = &iocb->iocb;
92d7f7b0
JS		 1751 struct lpfc_vport *vport = ndlp->vport;
1752
1753 if (iocb->vport != vport)
1754 return 0;
1755
dea3101e
JB		 1756 if (pring->ringno == LPFC_ELS_RING) {
1757 switch (icmd->ulpCommand) {
1758 case CMD_GEN_REQUEST64_CR:
1759 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
2fe165b6 1760 return 1;
dea3101e 1761 case CMD_ELS_REQUEST64_CR:
10d4e957
JS		 1762 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1763 return 1;
dea3101e
JB		 1764 case CMD_XMIT_ELS_RSP64_CX:
1765 if (iocb->context1 == (uint8_t *) ndlp)
2fe165b6 1766 return 1;
dea3101e 1767 }
a4bc3379 1768 } else if (pring->ringno == psli->extra_ring) {
dea3101e
JB		 1769
1770 } else if (pring->ringno == psli->fcp_ring) {
1771 /* Skip match check if waiting to relogin to FCP target */
1772 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
92d7f7b0 1773 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
2fe165b6 1774 return 0;
dea3101e
JB		 1775 }
1776 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
2fe165b6 1777 return 1;
dea3101e
JB		 1778 }
1779 } else if (pring->ringno == psli->next_ring) {
1780
1781 }
2fe165b6 1782 return 0;
dea3101e
JB		 1783}
1784
1785/*
1786 * Free resources / clean up outstanding I/Os
1787 * associated with nlp_rpi in the LPFC_NODELIST entry.
1788 */
1789static int
2e0fef85 1790lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 1791{
2534ba75 1792 LIST_HEAD(completions);
dea3101e
JB		 1793 struct lpfc_sli *psli;
1794 struct lpfc_sli_ring *pring;
1795 struct lpfc_iocbq *iocb, *next_iocb;
1796 IOCB_t *icmd;
1797 uint32_t rpi, i;
1798
92d7f7b0
JS		 1799 lpfc_fabric_abort_nport(ndlp);
1800
dea3101e
JB		 1801 /*
1802 * Everything that matches on txcmplq will be returned
1803 * by firmware with a no rpi error.
1804 */
1805 psli = &phba->sli;
1806 rpi = ndlp->nlp_rpi;
1807 if (rpi) {
1808 /* Now process each ring */
1809 for (i = 0; i < psli->num_rings; i++) {
1810 pring = &psli->ring[i];
1811
2e0fef85 1812 spin_lock_irq(&phba->hbalock);
dea3101e 1813 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
2e0fef85 1814 list) {
dea3101e
JB		 1815 /*
1816 * Check to see if iocb matches the nport we are
1817 * looking for
1818 */
92d7f7b0
JS		 1819 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
1820 ndlp))) {
dea3101e
JB		 1821 /* It matches, so deque and call compl
1822 with an error */
2534ba75
JS		 1823 list_move_tail(&iocb->list,
1824 &completions);
dea3101e 1825 pring->txq_cnt--;
dea3101e
JB		 1826 }
1827 }
2e0fef85 1828 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 1829 }
1830 }
2534ba75
JS		 1831
1832 while (!list_empty(&completions)) {
1833 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
92d7f7b0 1834 list_del_init(&iocb->list);
2534ba75 1835
2e0fef85
JS		 1836 if (!iocb->iocb_cmpl)
1837 lpfc_sli_release_iocbq(phba, iocb);
1838 else {
2534ba75
JS		 1839 icmd = &iocb->iocb;
1840 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1841 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2e0fef85
JS		 1842 (iocb->iocb_cmpl)(phba, iocb, iocb);
1843 }
2534ba75
JS		 1844 }
1845
2fe165b6 1846 return 0;
dea3101e
JB		 1847}
1848
1849/*
1850 * Free rpi associated with LPFC_NODELIST entry.
1851 * This routine is called from lpfc_freenode(), when we are removing
1852 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1853 * LOGO that completes successfully, and we are waiting to PLOGI back
1854 * to the remote NPort. In addition, it is called after we receive
1855 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1856 * we are waiting to PLOGI back to the remote NPort.
1857 */
1858int
2e0fef85 1859lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1860{
2e0fef85
JS		 1861 struct lpfc_hba *phba = vport->phba;
1862 LPFC_MBOXQ_t *mbox;
dea3101e
JB		 1863 int rc;
1864
1865 if (ndlp->nlp_rpi) {
2e0fef85
JS		 1866 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1867 if (mbox) {
92d7f7b0 1868 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
ed957684 1869 mbox->vport = vport;
92d7f7b0
JS		 1870 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1871 rc = lpfc_sli_issue_mbox(phba, mbox,
1872 (MBX_NOWAIT | MBX_STOP_IOCB));
dea3101e 1873 if (rc == MBX_NOT_FINISHED)
2e0fef85 1874 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 1875 }
dea3101e
JB		 1876 lpfc_no_rpi(phba, ndlp);
1877 ndlp->nlp_rpi = 0;
1878 return 1;
1879 }
1880 return 0;
1881}
1882
92d7f7b0
JS		 1883void
1884lpfc_unreg_all_rpis(struct lpfc_vport *vport)
1885{
1886 struct lpfc_hba *phba = vport->phba;
1887 LPFC_MBOXQ_t *mbox;
1888 int rc;
1889
1890 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1891 if (mbox) {
1892 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
1893 mbox->vport = vport;
1894 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1895 rc = lpfc_sli_issue_mbox(phba, mbox,
1896 (MBX_NOWAIT | MBX_STOP_IOCB));
1897 if (rc == MBX_NOT_FINISHED) {
1898 mempool_free(mbox, phba->mbox_mem_pool);
1899 }
1900 }
1901}
1902
1903void
1904lpfc_unreg_default_rpis(struct lpfc_vport *vport)
1905{
1906 struct lpfc_hba *phba = vport->phba;
1907 LPFC_MBOXQ_t *mbox;
1908 int rc;
1909
1910 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1911 if (mbox) {
1912 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
1913 mbox->vport = vport;
1914 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1915 rc = lpfc_sli_issue_mbox(phba, mbox,
1916 (MBX_NOWAIT | MBX_STOP_IOCB));
1917 if (rc == MBX_NOT_FINISHED) {
e8b62011
JS		 1918 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
1919 "1815 Could not issue "
1920 "unreg_did (default rpis)\n");
92d7f7b0
JS		 1921 mempool_free(mbox, phba->mbox_mem_pool);
1922 }
1923 }
1924}
1925
dea3101e
JB		 1926/*
1927 * Free resources associated with LPFC_NODELIST entry
1928 * so it can be freed.
1929 */
1930static int
2e0fef85 1931lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1932{
2e0fef85
JS		 1933 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1934 struct lpfc_hba *phba = vport->phba;
1935 LPFC_MBOXQ_t *mb, *nextmb;
dea3101e 1936 struct lpfc_dmabuf *mp;
dea3101e
JB		 1937
1938 /* Cleanup node for NPort <nlp_DID> */
e8b62011
JS		 1939 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1940 "0900 Cleanup node for NPort x%x "
1941 "Data: x%x x%x x%x\n",
1942 ndlp->nlp_DID, ndlp->nlp_flag,
1943 ndlp->nlp_state, ndlp->nlp_rpi);
2e0fef85 1944 lpfc_dequeue_node(vport, ndlp);
dea3101e 1945
dea3101e
JB		 1946 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1947 if ((mb = phba->sli.mbox_active)) {
1948 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1949 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1950 mb->context2 = NULL;
1951 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1952 }
1953 }
33ccf8d1 1954
2e0fef85 1955 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 1956 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1957 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
92d7f7b0 1958 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
dea3101e
JB		 1959 mp = (struct lpfc_dmabuf *) (mb->context1);
1960 if (mp) {
2e0fef85 1961 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e
JB		 1962 kfree(mp);
1963 }
1964 list_del(&mb->list);
1965 mempool_free(mb, phba->mbox_mem_pool);
329f9bc7 1966 lpfc_nlp_put(ndlp);
dea3101e
JB		 1967 }
1968 }
2e0fef85 1969 spin_unlock_irq(&phba->hbalock);
dea3101e 1970
07951076 1971 lpfc_els_abort(phba,ndlp);
2e0fef85 1972 spin_lock_irq(shost->host_lock);
c01f3208 1973 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
2e0fef85 1974 spin_unlock_irq(shost->host_lock);
dea3101e 1975
5024ab17 1976 ndlp->nlp_last_elscmd = 0;
dea3101e
JB		 1977 del_timer_sync(&ndlp->nlp_delayfunc);
1978
dea3101e
JB		 1979 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1980 list_del_init(&ndlp->els_retry_evt.evt_listp);
92d7f7b0
JS		 1981 if (!list_empty(&ndlp->dev_loss_evt.evt_listp))
1982 list_del_init(&ndlp->dev_loss_evt.evt_listp);
dea3101e 1983
858c9f6c
JS		 1984 if (!list_empty(&ndlp->dev_loss_evt.evt_listp)) {
1985 list_del_init(&ndlp->dev_loss_evt.evt_listp);
1986 complete((struct completion *)(ndlp->dev_loss_evt.evt_arg2));
1987 }
1988
2e0fef85 1989 lpfc_unreg_rpi(vport, ndlp);
dea3101e 1990
2fe165b6 1991 return 0;
dea3101e
JB		 1992}
1993
1994/*
1995 * Check to see if we can free the nlp back to the freelist.
1996 * If we are in the middle of using the nlp in the discovery state
1997 * machine, defer the free till we reach the end of the state machine.
1998 */
329f9bc7 1999static void
2e0fef85 2000lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 2001{
1dcb58e5 2002 struct lpfc_rport_data *rdata;
dea3101e
JB		 2003
2004 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
2e0fef85 2005 lpfc_cancel_retry_delay_tmo(vport, ndlp);
dea3101e
JB		 2006 }
2007
2e0fef85 2008 lpfc_cleanup_node(vport, ndlp);
1dcb58e5 2009
2e0fef85 2010 /*
92d7f7b0
JS		 2011 * We can get here with a non-NULL ndlp->rport because when we
2012 * unregister a rport we don't break the rport/node linkage. So if we
2013 * do, make sure we don't leaving any dangling pointers behind.
2e0fef85 2014 */
92d7f7b0 2015 if (ndlp->rport) {
329f9bc7
JS		 2016 rdata = ndlp->rport->dd_data;
2017 rdata->pnode = NULL;
2018 ndlp->rport = NULL;
dea3101e 2019 }
dea3101e
JB		 2020}
2021
2022static int
2e0fef85
JS		 2023lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2024 uint32_t did)
dea3101e 2025{
2e0fef85 2026 D_ID mydid, ndlpdid, matchdid;
dea3101e
JB		 2027
2028 if (did == Bcast_DID)
2fe165b6 2029 return 0;
dea3101e
JB		 2030
2031 if (ndlp->nlp_DID == 0) {
2fe165b6 2032 return 0;
dea3101e
JB		 2033 }
2034
2035 /* First check for Direct match */
2036 if (ndlp->nlp_DID == did)
2fe165b6 2037 return 1;
dea3101e
JB		 2038
2039 /* Next check for area/domain identically equals 0 match */
2e0fef85 2040 mydid.un.word = vport->fc_myDID;
dea3101e 2041 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2fe165b6 2042 return 0;
dea3101e
JB		 2043 }
2044
2045 matchdid.un.word = did;
2046 ndlpdid.un.word = ndlp->nlp_DID;
2047 if (matchdid.un.b.id == ndlpdid.un.b.id) {
2048 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
2049 (mydid.un.b.area == matchdid.un.b.area)) {
2050 if ((ndlpdid.un.b.domain == 0) &&
2051 (ndlpdid.un.b.area == 0)) {
2052 if (ndlpdid.un.b.id)
2fe165b6 2053 return 1;
dea3101e 2054 }
2fe165b6 2055 return 0;
dea3101e
JB		 2056 }
2057
2058 matchdid.un.word = ndlp->nlp_DID;
2059 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
2060 (mydid.un.b.area == ndlpdid.un.b.area)) {
2061 if ((matchdid.un.b.domain == 0) &&
2062 (matchdid.un.b.area == 0)) {
2063 if (matchdid.un.b.id)
2fe165b6 2064 return 1;
dea3101e
JB		 2065 }
2066 }
2067 }
2fe165b6 2068 return 0;
dea3101e
JB		 2069}
2070
685f0bf7 2071/* Search for a nodelist entry */
2e0fef85
JS		 2072static struct lpfc_nodelist *
2073__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
dea3101e 2074{
2fb9bd8b 2075 struct lpfc_nodelist *ndlp;
dea3101e
JB		 2076 uint32_t data1;
2077
2e0fef85
JS		 2078 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2079 if (lpfc_matchdid(vport, ndlp, did)) {
685f0bf7
JS		 2080 data1 = (((uint32_t) ndlp->nlp_state << 24) |
2081 ((uint32_t) ndlp->nlp_xri << 16) |
2082 ((uint32_t) ndlp->nlp_type << 8) |
2083 ((uint32_t) ndlp->nlp_rpi & 0xff));
e8b62011
JS		 2084 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2085 "0929 FIND node DID "
2086 "Data: x%p x%x x%x x%x\n",
2087 ndlp, ndlp->nlp_DID,
2088 ndlp->nlp_flag, data1);
685f0bf7 2089 return ndlp;
dea3101e
JB		 2090 }
2091 }
66a9ed66 2092
dea3101e 2093 /* FIND node did <did> NOT FOUND */
e8b62011
JS		 2094 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2095 "0932 FIND node did x%x NOT FOUND.\n", did);
dea3101e
JB		 2096 return NULL;
2097}
2098
2099struct lpfc_nodelist *
2e0fef85
JS		 2100lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
2101{
2102 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2103 struct lpfc_nodelist *ndlp;
2104
2105 spin_lock_irq(shost->host_lock);
2106 ndlp = __lpfc_findnode_did(vport, did);
2107 spin_unlock_irq(shost->host_lock);
2108 return ndlp;
2109}
2110
2111struct lpfc_nodelist *
2112lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
dea3101e 2113{
2e0fef85 2114 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 2115 struct lpfc_nodelist *ndlp;
dea3101e 2116
2e0fef85 2117 ndlp = lpfc_findnode_did(vport, did);
c9f8735b 2118 if (!ndlp) {
2e0fef85
JS		 2119 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
2120 lpfc_rscn_payload_check(vport, did) == 0)
dea3101e
JB		 2121 return NULL;
2122 ndlp = (struct lpfc_nodelist *)
2e0fef85 2123 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
dea3101e
JB		 2124 if (!ndlp)
2125 return NULL;
2e0fef85
JS		 2126 lpfc_nlp_init(vport, ndlp, did);
2127 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2128 spin_lock_irq(shost->host_lock);
dea3101e 2129 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2130 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 2131 return ndlp;
2132 }
2e0fef85
JS		 2133 if (vport->fc_flag & FC_RSCN_MODE) {
2134 if (lpfc_rscn_payload_check(vport, did)) {
2135 spin_lock_irq(shost->host_lock);
dea3101e 2136 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2137 spin_unlock_irq(shost->host_lock);
c9f8735b
JW		 2138
2139 /* Since this node is marked for discovery,
2140 * delay timeout is not needed.
2141 */
fdcebe28 2142 if (ndlp->nlp_flag & NLP_DELAY_TMO)
2e0fef85 2143 lpfc_cancel_retry_delay_tmo(vport, ndlp);
071fbd3d 2144 } else
dea3101e 2145 ndlp = NULL;
2fe165b6 2146 } else {
685f0bf7
JS		 2147 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
2148 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE)
dea3101e 2149 return NULL;
2e0fef85
JS		 2150 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2151 spin_lock_irq(shost->host_lock);
dea3101e 2152 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2153 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 2154 }
2155 return ndlp;
2156}
2157
2158/* Build a list of nodes to discover based on the loopmap */
2159void
2e0fef85 2160lpfc_disc_list_loopmap(struct lpfc_vport *vport)
dea3101e 2161{
2e0fef85 2162 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 2163 int j;
2164 uint32_t alpa, index;
2165
2e0fef85 2166 if (!lpfc_is_link_up(phba))
dea3101e 2167 return;
2e0fef85
JS		 2168
2169 if (phba->fc_topology != TOPOLOGY_LOOP)
dea3101e 2170 return;
dea3101e
JB		 2171
2172 /* Check for loop map present or not */
2173 if (phba->alpa_map[0]) {
2174 for (j = 1; j <= phba->alpa_map[0]; j++) {
2175 alpa = phba->alpa_map[j];
2e0fef85 2176 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
dea3101e 2177 continue;
2e0fef85 2178 lpfc_setup_disc_node(vport, alpa);
dea3101e
JB		 2179 }
2180 } else {
2181 /* No alpamap, so try all alpa's */
2182 for (j = 0; j < FC_MAXLOOP; j++) {
2183 /* If cfg_scan_down is set, start from highest
2184 * ALPA (0xef) to lowest (0x1).
2185 */
3de2a653 2186 if (vport->cfg_scan_down)
dea3101e
JB		 2187 index = j;
2188 else
2189 index = FC_MAXLOOP - j - 1;
2190 alpa = lpfcAlpaArray[index];
2e0fef85 2191 if ((vport->fc_myDID & 0xff) == alpa)
dea3101e 2192 continue;
2e0fef85 2193 lpfc_setup_disc_node(vport, alpa);
dea3101e
JB		 2194 }
2195 }
2196 return;
2197}
2198
dea3101e 2199void
2e0fef85 2200lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
dea3101e 2201{
dea3101e 2202 LPFC_MBOXQ_t *mbox;
2e0fef85
JS		 2203 struct lpfc_sli *psli = &phba->sli;
2204 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
2205 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
2206 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
2207 int rc;
2208
92d7f7b0
JS		 2209 /*
2210 * if it's not a physical port or if we already send
2211 * clear_la then don't send it.
2212 */
2213 if ((phba->link_state >= LPFC_CLEAR_LA) ||
2214 (vport->port_type != LPFC_PHYSICAL_PORT))
2215 return;
2216
2e0fef85
JS		 2217 /* Link up discovery */
2218 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
2219 phba->link_state = LPFC_CLEAR_LA;
2220 lpfc_clear_la(phba, mbox);
2221 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2222 mbox->vport = vport;
2223 rc = lpfc_sli_issue_mbox(phba, mbox, (MBX_NOWAIT |
2224 MBX_STOP_IOCB));
2225 if (rc == MBX_NOT_FINISHED) {
2226 mempool_free(mbox, phba->mbox_mem_pool);
2227 lpfc_disc_flush_list(vport);
2228 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2229 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2230 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
92d7f7b0
JS		 2231 phba->link_state = LPFC_HBA_ERROR;
2232 }
2233 }
2234}
2235
2236/* Reg_vpi to tell firmware to resume normal operations */
2237void
2238lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
2239{
2240 LPFC_MBOXQ_t *regvpimbox;
2241
2242 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2243 if (regvpimbox) {
2244 lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, regvpimbox);
2245 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
2246 regvpimbox->vport = vport;
2247 if (lpfc_sli_issue_mbox(phba, regvpimbox,
2248 (MBX_NOWAIT | MBX_STOP_IOCB))
2249 == MBX_NOT_FINISHED) {
2250 mempool_free(regvpimbox, phba->mbox_mem_pool);
2e0fef85
JS		 2251 }
2252 }
2253}
2254
2255/* Start Link up / RSCN discovery on NPR nodes */
2256void
2257lpfc_disc_start(struct lpfc_vport *vport)
2258{
2259 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2260 struct lpfc_hba *phba = vport->phba;
685f0bf7 2261 uint32_t num_sent;
dea3101e 2262 uint32_t clear_la_pending;
685f0bf7 2263 int did_changed;
dea3101e 2264
2e0fef85 2265 if (!lpfc_is_link_up(phba))
dea3101e 2266 return;
2e0fef85
JS		 2267
2268 if (phba->link_state == LPFC_CLEAR_LA)
dea3101e
JB		 2269 clear_la_pending = 1;
2270 else
2271 clear_la_pending = 0;
2272
2e0fef85
JS		 2273 if (vport->port_state < LPFC_VPORT_READY)
2274 vport->port_state = LPFC_DISC_AUTH;
dea3101e 2275
2e0fef85
JS		 2276 lpfc_set_disctmo(vport);
2277
2278 if (vport->fc_prevDID == vport->fc_myDID)
dea3101e 2279 did_changed = 0;
2e0fef85 2280 else
dea3101e 2281 did_changed = 1;
2e0fef85
JS		 2282
2283 vport->fc_prevDID = vport->fc_myDID;
2284 vport->num_disc_nodes = 0;
dea3101e
JB		 2285
2286 /* Start Discovery state <hba_state> */
e8b62011
JS		 2287 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2288 "0202 Start Discovery hba state x%x "
2289 "Data: x%x x%x x%x\n",
2290 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
2291 vport->fc_adisc_cnt);
dea3101e
JB		 2292
2293 /* First do ADISCs - if any */
2e0fef85 2294 num_sent = lpfc_els_disc_adisc(vport);
dea3101e
JB		 2295
2296 if (num_sent)
2297 return;
2298
92d7f7b0
JS		 2299 /*
2300 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
2301 * continue discovery.
2302 */
2303 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2304 !(vport->fc_flag & FC_RSCN_MODE)) {
2305 lpfc_issue_reg_vpi(phba, vport);
2306 return;
2307 }
2308
2309 /*
2310 * For SLI2, we need to set port_state to READY and continue
2311 * discovery.
2312 */
2e0fef85 2313 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
dea3101e 2314 /* If we get here, there is nothing to ADISC */
92d7f7b0 2315 if (vport->port_type == LPFC_PHYSICAL_PORT)
2e0fef85 2316 lpfc_issue_clear_la(phba, vport);
2e0fef85 2317
92d7f7b0 2318 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2e0fef85
JS		 2319 vport->num_disc_nodes = 0;
2320 /* go thru NPR nodes and issue ELS PLOGIs */
2321 if (vport->fc_npr_cnt)
2322 lpfc_els_disc_plogi(vport);
2323
2324 if (!vport->num_disc_nodes) {
2325 spin_lock_irq(shost->host_lock);
2326 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2327 spin_unlock_irq(shost->host_lock);
92d7f7b0 2328 lpfc_can_disctmo(vport);
dea3101e
JB		 2329 }
2330 }
92d7f7b0 2331 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 2332 } else {
2333 /* Next do PLOGIs - if any */
2e0fef85 2334 num_sent = lpfc_els_disc_plogi(vport);
dea3101e
JB		 2335
2336 if (num_sent)
2337 return;
2338
2e0fef85 2339 if (vport->fc_flag & FC_RSCN_MODE) {
dea3101e
JB		 2340 /* Check to see if more RSCNs came in while we
2341 * were processing this one.
2342 */
2e0fef85
JS		 2343 if ((vport->fc_rscn_id_cnt == 0) &&
2344 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
2345 spin_lock_irq(shost->host_lock);
2346 vport->fc_flag &= ~FC_RSCN_MODE;
2347 spin_unlock_irq(shost->host_lock);
92d7f7b0 2348 lpfc_can_disctmo(vport);
2fe165b6 2349 } else
2e0fef85 2350 lpfc_els_handle_rscn(vport);
dea3101e
JB		 2351 }
2352 }
2353 return;
2354}
2355
2356/*
2357 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2358 * ring the match the sppecified nodelist.
2359 */
2360static void
2e0fef85 2361lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 2362{
2534ba75 2363 LIST_HEAD(completions);
dea3101e
JB		 2364 struct lpfc_sli *psli;
2365 IOCB_t *icmd;
2366 struct lpfc_iocbq *iocb, *next_iocb;
2367 struct lpfc_sli_ring *pring;
dea3101e
JB		 2368
2369 psli = &phba->sli;
2370 pring = &psli->ring[LPFC_ELS_RING];
2371
2372 /* Error matching iocb on txq or txcmplq
2373 * First check the txq.
2374 */
2e0fef85 2375 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 2376 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2377 if (iocb->context1 != ndlp) {
2378 continue;
2379 }
2380 icmd = &iocb->iocb;
2381 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2382 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2383
2534ba75 2384 list_move_tail(&iocb->list, &completions);
dea3101e 2385 pring->txq_cnt--;
dea3101e
JB		 2386 }
2387 }
2388
2389 /* Next check the txcmplq */
2390 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2391 if (iocb->context1 != ndlp) {
2392 continue;
2393 }
2394 icmd = &iocb->iocb;
2e0fef85
JS		 2395 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
2396 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
2534ba75
JS		 2397 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
2398 }
2399 }
2e0fef85 2400 spin_unlock_irq(&phba->hbalock);
dea3101e 2401
2534ba75
JS		 2402 while (!list_empty(&completions)) {
2403 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
92d7f7b0 2404 list_del_init(&iocb->list);
dea3101e 2405
2e0fef85
JS		 2406 if (!iocb->iocb_cmpl)
2407 lpfc_sli_release_iocbq(phba, iocb);
2408 else {
2534ba75
JS		 2409 icmd = &iocb->iocb;
2410 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2411 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2412 (iocb->iocb_cmpl) (phba, iocb, iocb);
2e0fef85 2413 }
dea3101e 2414 }
dea3101e
JB		 2415}
2416
2417void
2e0fef85 2418lpfc_disc_flush_list(struct lpfc_vport *vport)
dea3101e
JB		 2419{
2420 struct lpfc_nodelist *ndlp, *next_ndlp;
2e0fef85 2421 struct lpfc_hba *phba = vport->phba;
dea3101e 2422
2e0fef85
JS		 2423 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
2424 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7
JS		 2425 nlp_listp) {
2426 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
2427 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
2428 lpfc_free_tx(phba, ndlp);
2429 lpfc_nlp_put(ndlp);
2430 }
dea3101e
JB		 2431 }
2432 }
dea3101e
JB		 2433}
2434
92d7f7b0
JS		 2435void
2436lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
2437{
2438 lpfc_els_flush_rscn(vport);
2439 lpfc_els_flush_cmd(vport);
2440 lpfc_disc_flush_list(vport);
2441}
2442
dea3101e
JB		 2443/*****************************************************************************/
2444/*
2445 * NAME: lpfc_disc_timeout
2446 *
2447 * FUNCTION: Fibre Channel driver discovery timeout routine.
2448 *
2449 * EXECUTION ENVIRONMENT: interrupt only
2450 *
2451 * CALLED FROM:
2452 * Timer function
2453 *
2454 * RETURNS:
2455 * none
2456 */
2457/*****************************************************************************/
2458void
2459lpfc_disc_timeout(unsigned long ptr)
2460{
2e0fef85
JS		 2461 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
2462 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 2463 unsigned long flags = 0;
2464
2465 if (unlikely(!phba))
2466 return;
2467
2e0fef85
JS		 2468 if ((vport->work_port_events & WORKER_DISC_TMO) == 0) {
2469 spin_lock_irqsave(&vport->work_port_lock, flags);
2470 vport->work_port_events |= WORKER_DISC_TMO;
2471 spin_unlock_irqrestore(&vport->work_port_lock, flags);
2472
92d7f7b0 2473 spin_lock_irqsave(&phba->hbalock, flags);
dea3101e 2474 if (phba->work_wait)
92d7f7b0
JS		 2475 lpfc_worker_wake_up(phba);
2476 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e 2477 }
dea3101e
JB		 2478 return;
2479}
2480
2481static void
2e0fef85 2482lpfc_disc_timeout_handler(struct lpfc_vport *vport)
dea3101e 2483{
2e0fef85
JS		 2484 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2485 struct lpfc_hba *phba = vport->phba;
2486 struct lpfc_sli *psli = &phba->sli;
c9f8735b 2487 struct lpfc_nodelist *ndlp, *next_ndlp;
92d7f7b0 2488 LPFC_MBOXQ_t *initlinkmbox;
dea3101e
JB		 2489 int rc, clrlaerr = 0;
2490
2e0fef85 2491 if (!(vport->fc_flag & FC_DISC_TMO))
dea3101e
JB		 2492 return;
2493
2e0fef85
JS		 2494 spin_lock_irq(shost->host_lock);
2495 vport->fc_flag &= ~FC_DISC_TMO;
2496 spin_unlock_irq(shost->host_lock);
dea3101e 2497
858c9f6c
JS		 2498 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2499 "disc timeout: state:x%x rtry:x%x flg:x%x",
2500 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
2501
2e0fef85 2502 switch (vport->port_state) {
dea3101e
JB		 2503
2504 case LPFC_LOCAL_CFG_LINK:
2e0fef85
JS		 2505 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
2506 * FAN
2507 */
2508 /* FAN timeout */
e8b62011
JS		 2509 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
2510 "0221 FAN timeout\n");
c9f8735b 2511 /* Start discovery by sending FLOGI, clean up old rpis */
2e0fef85 2512 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7
JS		 2513 nlp_listp) {
2514 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
2515 continue;
c9f8735b
JW		 2516 if (ndlp->nlp_type & NLP_FABRIC) {
2517 /* Clean up the ndlp on Fabric connections */
2e0fef85 2518 lpfc_drop_node(vport, ndlp);
2fe165b6 2519 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
c9f8735b
JW		 2520 /* Fail outstanding IO now since device
2521 * is marked for PLOGI.
2522 */
2e0fef85 2523 lpfc_unreg_rpi(vport, ndlp);
c9f8735b
JW		 2524 }
2525 }
92d7f7b0
JS		 2526 if (vport->port_state != LPFC_FLOGI) {
2527 vport->port_state = LPFC_FLOGI;
2528 lpfc_set_disctmo(vport);
2529 lpfc_initial_flogi(vport);
2530 }
dea3101e
JB		 2531 break;
2532
92d7f7b0 2533 case LPFC_FDISC:
dea3101e 2534 case LPFC_FLOGI:
2e0fef85 2535 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
dea3101e 2536 /* Initial FLOGI timeout */
e8b62011
JS		 2537 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2538 "0222 Initial %s timeout\n",
2539 vport->vpi ? "FLOGI" : "FDISC");
dea3101e
JB		 2540
2541 /* Assume no Fabric and go on with discovery.
2542 * Check for outstanding ELS FLOGI to abort.
2543 */
2544
2545 /* FLOGI failed, so just use loop map to make discovery list */
2e0fef85 2546 lpfc_disc_list_loopmap(vport);
dea3101e
JB		 2547
2548 /* Start discovery */
2e0fef85 2549 lpfc_disc_start(vport);
dea3101e
JB		 2550 break;
2551
2552 case LPFC_FABRIC_CFG_LINK:
2553 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2554 NameServer login */
e8b62011
JS		 2555 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2556 "0223 Timeout while waiting for "
2557 "NameServer login\n");
dea3101e 2558 /* Next look for NameServer ndlp */
2e0fef85 2559 ndlp = lpfc_findnode_did(vport, NameServer_DID);
dea3101e 2560 if (ndlp)
329f9bc7 2561 lpfc_nlp_put(ndlp);
dea3101e 2562 /* Start discovery */
2e0fef85 2563 lpfc_disc_start(vport);
dea3101e
JB		 2564 break;
2565
2566 case LPFC_NS_QRY:
2567 /* Check for wait for NameServer Rsp timeout */
e8b62011
JS		 2568 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2569 "0224 NameServer Query timeout "
2570 "Data: x%x x%x\n",
2571 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e 2572
92d7f7b0
JS		 2573 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2574 /* Try it one more time */
2575 vport->fc_ns_retry++;
2576 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
2577 vport->fc_ns_retry, 0);
2578 if (rc == 0)
2579 break;
dea3101e 2580 }
92d7f7b0 2581 vport->fc_ns_retry = 0;
dea3101e 2582
92d7f7b0
JS		 2583 /*
2584 * Discovery is over.
2585 * set port_state to PORT_READY if SLI2.
2586 * cmpl_reg_vpi will set port_state to READY for SLI3.
2587 */
2588 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2589 lpfc_issue_reg_vpi(phba, vport);
2590 else { /* NPIV Not enabled */
2591 lpfc_issue_clear_la(phba, vport);
2592 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 2593 }
2594
2595 /* Setup and issue mailbox INITIALIZE LINK command */
2596 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2597 if (!initlinkmbox) {
e8b62011
JS		 2598 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2599 "0206 Device Discovery "
2600 "completion error\n");
2e0fef85 2601 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 2602 break;
2603 }
2604
2605 lpfc_linkdown(phba);
2606 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2607 phba->cfg_link_speed);
2608 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
ed957684 2609 initlinkmbox->vport = vport;
92d7f7b0 2610 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
dea3101e
JB		 2611 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2612 (MBX_NOWAIT | MBX_STOP_IOCB));
5b8bd0c9 2613 lpfc_set_loopback_flag(phba);
dea3101e
JB		 2614 if (rc == MBX_NOT_FINISHED)
2615 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2616
2617 break;
2618
2619 case LPFC_DISC_AUTH:
2620 /* Node Authentication timeout */
e8b62011
JS		 2621 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2622 "0227 Node Authentication timeout\n");
2e0fef85
JS		 2623 lpfc_disc_flush_list(vport);
2624
92d7f7b0
JS		 2625 /*
2626 * set port_state to PORT_READY if SLI2.
2627 * cmpl_reg_vpi will set port_state to READY for SLI3.
2628 */
2629 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2630 lpfc_issue_reg_vpi(phba, vport);
2631 else { /* NPIV Not enabled */
2632 lpfc_issue_clear_la(phba, vport);
2633 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 2634 }
2635 break;
2636
2e0fef85
JS		 2637 case LPFC_VPORT_READY:
2638 if (vport->fc_flag & FC_RSCN_MODE) {
e8b62011
JS		 2639 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2640 "0231 RSCN timeout Data: x%x "
2641 "x%x\n",
2642 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e
JB		 2643
2644 /* Cleanup any outstanding ELS commands */
2e0fef85 2645 lpfc_els_flush_cmd(vport);
dea3101e 2646
2e0fef85
JS		 2647 lpfc_els_flush_rscn(vport);
2648 lpfc_disc_flush_list(vport);
dea3101e
JB		 2649 }
2650 break;
2e0fef85 2651
92d7f7b0 2652 default:
e8b62011
JS		 2653 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2654 "0229 Unexpected discovery timeout, "
2655 "vport State x%x\n", vport->port_state);
2e0fef85
JS		 2656 break;
2657 }
2658
2659 switch (phba->link_state) {
2660 case LPFC_CLEAR_LA:
92d7f7b0 2661 /* CLEAR LA timeout */
e8b62011
JS		 2662 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2663 "0228 CLEAR LA timeout\n");
2e0fef85
JS		 2664 clrlaerr = 1;
2665 break;
2666
2667 case LPFC_LINK_UNKNOWN:
2668 case LPFC_WARM_START:
2669 case LPFC_INIT_START:
2670 case LPFC_INIT_MBX_CMDS:
2671 case LPFC_LINK_DOWN:
2672 case LPFC_LINK_UP:
2673 case LPFC_HBA_ERROR:
e8b62011
JS		 2674 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2675 "0230 Unexpected timeout, hba link "
2676 "state x%x\n", phba->link_state);
2e0fef85
JS		 2677 clrlaerr = 1;
2678 break;
92d7f7b0
JS		 2679
2680 case LPFC_HBA_READY:
2681 break;
dea3101e
JB		 2682 }
2683
2684 if (clrlaerr) {
2e0fef85 2685 lpfc_disc_flush_list(vport);
a4bc3379 2686 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e
JB		 2687 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2688 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2e0fef85 2689 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 2690 }
2691
2692 return;
2693}
2694
dea3101e
JB		 2695/*
2696 * This routine handles processing a NameServer REG_LOGIN mailbox
2697 * command upon completion. It is setup in the LPFC_MBOXQ
2698 * as the completion routine when the command is
2699 * handed off to the SLI layer.
2700 */
2701void
2e0fef85 2702lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 2703{
2e0fef85
JS		 2704 MAILBOX_t *mb = &pmb->mb;
2705 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2706 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2707 struct lpfc_vport *vport = pmb->vport;
dea3101e
JB		 2708
2709 pmb->context1 = NULL;
2710
dea3101e 2711 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 2712 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 2713 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 2714
2e0fef85
JS		 2715 /*
2716 * Start issuing Fabric-Device Management Interface (FDMI) command to
2717 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
2718 * fdmi-on=2 (supporting RPA/hostnmae)
dea3101e 2719 */
2e0fef85 2720
3de2a653 2721 if (vport->cfg_fdmi_on == 1)
2e0fef85
JS		 2722 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
2723 else
2724 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
dea3101e 2725
329f9bc7
JS		 2726 /* Mailbox took a reference to the node */
2727 lpfc_nlp_put(ndlp);
dea3101e
JB		 2728 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2729 kfree(mp);
329f9bc7 2730 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 2731
2732 return;
2733}
2734
685f0bf7
JS		 2735static int
2736lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
2737{
2738 uint16_t *rpi = param;
2739
2740 return ndlp->nlp_rpi == *rpi;
2741}
2742
2743static int
2744lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
2745{
2746 return memcmp(&ndlp->nlp_portname, param,
2747 sizeof(ndlp->nlp_portname)) == 0;
2748}
2749
dea3101e 2750struct lpfc_nodelist *
2e0fef85 2751__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
dea3101e 2752{
21568f53 2753 struct lpfc_nodelist *ndlp;
dea3101e 2754
2e0fef85 2755 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
685f0bf7
JS		 2756 if (ndlp->nlp_state != NLP_STE_UNUSED_NODE &&
2757 filter(ndlp, param))
2758 return ndlp;
2759 }
21568f53 2760 return NULL;
dea3101e
JB		 2761}
2762
685f0bf7
JS		 2763/*
2764 * Search node lists for a remote port matching filter criteria
92d7f7b0 2765 * Caller needs to hold host_lock before calling this routine.
685f0bf7
JS		 2766 */
2767struct lpfc_nodelist *
2e0fef85 2768lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
685f0bf7 2769{
2e0fef85 2770 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
685f0bf7
JS		 2771 struct lpfc_nodelist *ndlp;
2772
2e0fef85
JS		 2773 spin_lock_irq(shost->host_lock);
2774 ndlp = __lpfc_find_node(vport, filter, param);
2775 spin_unlock_irq(shost->host_lock);
685f0bf7
JS		 2776 return ndlp;
2777}
2778
2779/*
2780 * This routine looks up the ndlp lists for the given RPI. If rpi found it
2e0fef85 2781 * returns the node list element pointer else return NULL.
685f0bf7
JS		 2782 */
2783struct lpfc_nodelist *
2e0fef85 2784__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
685f0bf7 2785{
2e0fef85 2786 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
685f0bf7
JS		 2787}
2788
2534ba75 2789struct lpfc_nodelist *
2e0fef85 2790lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
2534ba75 2791{
2e0fef85 2792 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2534ba75
JS		 2793 struct lpfc_nodelist *ndlp;
2794
2e0fef85
JS		 2795 spin_lock_irq(shost->host_lock);
2796 ndlp = __lpfc_findnode_rpi(vport, rpi);
2797 spin_unlock_irq(shost->host_lock);
2534ba75
JS		 2798 return ndlp;
2799}
2800
488d1469 2801/*
685f0bf7 2802 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
2e0fef85 2803 * returns the node element list pointer else return NULL.
488d1469
JS		 2804 */
2805struct lpfc_nodelist *
2e0fef85 2806lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
488d1469 2807{
2e0fef85 2808 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
488d1469 2809 struct lpfc_nodelist *ndlp;
488d1469 2810
2e0fef85
JS		 2811 spin_lock_irq(shost->host_lock);
2812 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
2813 spin_unlock_irq(shost->host_lock);
858c9f6c 2814 return ndlp;
488d1469
JS		 2815}
2816
92d7f7b0
JS		 2817void
2818lpfc_dev_loss_delay(unsigned long ptr)
2819{
2820 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
2821 struct lpfc_vport *vport = ndlp->vport;
2822 struct lpfc_hba *phba = vport->phba;
2823 struct lpfc_work_evt *evtp = &ndlp->dev_loss_evt;
2824 unsigned long flags;
2825
2826 evtp = &ndlp->dev_loss_evt;
2827
2828 spin_lock_irqsave(&phba->hbalock, flags);
2829 if (!list_empty(&evtp->evt_listp)) {
2830 spin_unlock_irqrestore(&phba->hbalock, flags);
2831 return;
2832 }
2833
2834 evtp->evt_arg1 = ndlp;
858c9f6c 2835 evtp->evt = LPFC_EVT_DEV_LOSS_DELAY;
92d7f7b0
JS		 2836 list_add_tail(&evtp->evt_listp, &phba->work_list);
2837 if (phba->work_wait)
2838 lpfc_worker_wake_up(phba);
2839 spin_unlock_irqrestore(&phba->hbalock, flags);
2840 return;
2841}
2842
dea3101e 2843void
2e0fef85
JS		 2844lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2845 uint32_t did)
dea3101e
JB		 2846{
2847 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
dea3101e 2848 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
92d7f7b0 2849 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
dea3101e
JB		 2850 init_timer(&ndlp->nlp_delayfunc);
2851 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2852 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2853 ndlp->nlp_DID = did;
2e0fef85 2854 ndlp->vport = vport;
dea3101e 2855 ndlp->nlp_sid = NLP_NO_SID;
685f0bf7 2856 INIT_LIST_HEAD(&ndlp->nlp_listp);
329f9bc7 2857 kref_init(&ndlp->kref);
858c9f6c
JS		 2858
2859 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2860 "node init: did:x%x",
2861 ndlp->nlp_DID, 0, 0);
2862
dea3101e
JB		 2863 return;
2864}
329f9bc7
JS		 2865
2866void
2867lpfc_nlp_release(struct kref *kref)
2868{
2869 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
2870 kref);
858c9f6c
JS		 2871
2872 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
2873 "node release: did:x%x flg:x%x type:x%x",
2874 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
2875
2e0fef85
JS		 2876 lpfc_nlp_remove(ndlp->vport, ndlp);
2877 mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool);
329f9bc7
JS		 2878}
2879
2880struct lpfc_nodelist *
2881lpfc_nlp_get(struct lpfc_nodelist *ndlp)
2882{
2883 if (ndlp)
2884 kref_get(&ndlp->kref);
2885 return ndlp;
2886}
2887
2888int
2889lpfc_nlp_put(struct lpfc_nodelist *ndlp)
2890{
2891 return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0;
2892}
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