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[SCSI] lpfc 8.2.2 : Error messages and debugfs updates
[mirror_ubuntu-jammy-kernel.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
JS		 85 if (ndlp->nlp_sid != NLP_NO_SID) {
86 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
87 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
88 }
c01f3208
JS		 89
90 return;
91}
92
93/*
94 * This function will be called when dev_loss_tmo fire.
95 */
96void
97lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
98{
99 struct lpfc_rport_data *rdata;
100 struct lpfc_nodelist * ndlp;
2e0fef85 101 struct lpfc_vport *vport;
858c9f6c
JS		 102 struct lpfc_hba *phba;
103 struct completion devloss_compl;
104 struct lpfc_work_evt *evtp;
c01f3208
JS		 105
106 rdata = rport->dd_data;
107 ndlp = rdata->pnode;
1a169689 108
c01f3208 109 if (!ndlp) {
92d7f7b0 110 if (rport->scsi_target_id != -1) {
c01f3208 111 printk(KERN_ERR "Cannot find remote node"
92d7f7b0
JS		 112 " for rport in dev_loss_tmo_callbk x%x\n",
113 rport->port_id);
114 }
c01f3208
JS		 115 return;
116 }
117
858c9f6c
JS		 118 vport = ndlp->vport;
119 phba = vport->phba;
120
121 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
122 "rport devlosscb: sid:x%x did:x%x flg:x%x",
123 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
124
125 init_completion(&devloss_compl);
126 evtp = &ndlp->dev_loss_evt;
127
128 if (!list_empty(&evtp->evt_listp))
129 return;
130
131 spin_lock_irq(&phba->hbalock);
132 evtp->evt_arg1 = ndlp;
133 evtp->evt_arg2 = &devloss_compl;
134 evtp->evt = LPFC_EVT_DEV_LOSS;
135 list_add_tail(&evtp->evt_listp, &phba->work_list);
136 if (phba->work_wait)
137 wake_up(phba->work_wait);
138
139 spin_unlock_irq(&phba->hbalock);
140
141 wait_for_completion(&devloss_compl);
142
143 return;
144}
145
146/*
147 * This function is called from the worker thread when dev_loss_tmo
148 * expire.
149 */
150void
151lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
152{
153 struct lpfc_rport_data *rdata;
154 struct fc_rport *rport;
155 struct lpfc_vport *vport;
156 struct lpfc_hba *phba;
157 uint8_t *name;
158 int warn_on = 0;
159
160 rport = ndlp->rport;
161
162 if (!rport)
163 return;
164
165 rdata = rport->dd_data;
166 name = (uint8_t *) &ndlp->nlp_portname;
167 vport = ndlp->vport;
168 phba = vport->phba;
169
170 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
171 "rport devlosstmo:did:x%x type:x%x id:x%x",
172 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
173
174 if (!(vport->load_flag & FC_UNLOADING) &&
175 ndlp->nlp_state == NLP_STE_MAPPED_NODE)
176 return;
177
92d7f7b0 178 if (ndlp->nlp_type & NLP_FABRIC) {
858c9f6c
JS		 179 int put_node;
180 int put_rport;
181
92d7f7b0
JS		 182 /* We will clean up these Nodes in linkup */
183 put_node = rdata->pnode != NULL;
184 put_rport = ndlp->rport != NULL;
185 rdata->pnode = NULL;
186 ndlp->rport = NULL;
187 if (put_node)
188 lpfc_nlp_put(ndlp);
189 if (put_rport)
190 put_device(&rport->dev);
82085718 191 return;
92d7f7b0 192 }
82085718 193
dea3101e 194 if (ndlp->nlp_sid != NLP_NO_SID) {
6e8215e4 195 warn_on = 1;
dea3101e
JB		 196 /* flush the target */
197 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
92d7f7b0 198 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
dea3101e 199 }
2e0fef85 200 if (vport->load_flag & FC_UNLOADING)
c01f3208
JS		 201 warn_on = 0;
202
6e8215e4
JSEC		 203 if (warn_on) {
204 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
92d7f7b0 205 "%d (%d):0203 Devloss timeout on "
488d1469
JS		 206 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
207 "NPort x%x Data: x%x x%x x%x\n",
92d7f7b0 208 phba->brd_no, vport->vpi,
488d1469
JS		 209 *name, *(name+1), *(name+2), *(name+3),
210 *(name+4), *(name+5), *(name+6), *(name+7),
211 ndlp->nlp_DID, ndlp->nlp_flag,
6e8215e4
JSEC		 212 ndlp->nlp_state, ndlp->nlp_rpi);
213 } else {
214 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
92d7f7b0 215 "%d (%d):0204 Devloss timeout on "
488d1469
JS		 216 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
217 "NPort x%x Data: x%x x%x x%x\n",
92d7f7b0 218 phba->brd_no, vport->vpi,
488d1469
JS		 219 *name, *(name+1), *(name+2), *(name+3),
220 *(name+4), *(name+5), *(name+6), *(name+7),
221 ndlp->nlp_DID, ndlp->nlp_flag,
6e8215e4
JSEC		 222 ndlp->nlp_state, ndlp->nlp_rpi);
223 }
224
2e0fef85 225 if (!(vport->load_flag & FC_UNLOADING) &&
1dcb58e5 226 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
82085718
JS		 227 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
228 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE))
2e0fef85 229 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
1dcb58e5 230 else {
858c9f6c
JS		 231 int put_node;
232 int put_rport;
233
92d7f7b0
JS		 234 put_node = rdata->pnode != NULL;
235 put_rport = ndlp->rport != NULL;
1dcb58e5
JS		 236 rdata->pnode = NULL;
237 ndlp->rport = NULL;
92d7f7b0
JS		 238 if (put_node)
239 lpfc_nlp_put(ndlp);
240 if (put_rport)
241 put_device(&rport->dev);
1dcb58e5 242 }
92d7f7b0 243}
c01f3208 244
92d7f7b0
JS		 245
246void
247lpfc_worker_wake_up(struct lpfc_hba *phba)
248{
249 wake_up(phba->work_wait);
dea3101e
JB		 250 return;
251}
252
253static void
2e0fef85 254lpfc_work_list_done(struct lpfc_hba *phba)
dea3101e
JB		 255{
256 struct lpfc_work_evt *evtp = NULL;
257 struct lpfc_nodelist *ndlp;
92d7f7b0 258 struct lpfc_vport *vport;
dea3101e
JB		 259 int free_evt;
260
2e0fef85
JS		 261 spin_lock_irq(&phba->hbalock);
262 while (!list_empty(&phba->work_list)) {
dea3101e
JB		 263 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
264 evt_listp);
2e0fef85 265 spin_unlock_irq(&phba->hbalock);
dea3101e 266 free_evt = 1;
2fe165b6 267 switch (evtp->evt) {
858c9f6c 268 case LPFC_EVT_DEV_LOSS_DELAY:
92d7f7b0
JS		 269 free_evt = 0; /* evt is part of ndlp */
270 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
271 vport = ndlp->vport;
272 if (!vport)
273 break;
858c9f6c
JS		 274
275 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
276 "rport devlossdly:did:x%x flg:x%x",
277 ndlp->nlp_DID, ndlp->nlp_flag, 0);
278
92d7f7b0
JS		 279 if (!(vport->load_flag & FC_UNLOADING) &&
280 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
281 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
282 lpfc_disc_state_machine(vport, ndlp, NULL,
283 NLP_EVT_DEVICE_RM);
284 }
285 break;
dea3101e 286 case LPFC_EVT_ELS_RETRY:
2e0fef85 287 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
dea3101e 288 lpfc_els_retry_delay_handler(ndlp);
92d7f7b0 289 free_evt = 0; /* evt is part of ndlp */
dea3101e 290 break;
858c9f6c
JS		 291 case LPFC_EVT_DEV_LOSS:
292 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
293 lpfc_nlp_get(ndlp);
294 lpfc_dev_loss_tmo_handler(ndlp);
295 free_evt = 0;
296 complete((struct completion *)(evtp->evt_arg2));
297 lpfc_nlp_put(ndlp);
298 break;
dea3101e 299 case LPFC_EVT_ONLINE:
2e0fef85
JS		 300 if (phba->link_state < LPFC_LINK_DOWN)
301 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
41415862 302 else
2e0fef85 303 *(int *) (evtp->evt_arg1) = 0;
dea3101e
JB		 304 complete((struct completion *)(evtp->evt_arg2));
305 break;
46fa311e 306 case LPFC_EVT_OFFLINE_PREP:
2e0fef85 307 if (phba->link_state >= LPFC_LINK_DOWN)
46fa311e
JS		 308 lpfc_offline_prep(phba);
309 *(int *)(evtp->evt_arg1) = 0;
310 complete((struct completion *)(evtp->evt_arg2));
311 break;
312 case LPFC_EVT_OFFLINE:
313 lpfc_offline(phba);
41415862
JW		 314 lpfc_sli_brdrestart(phba);
315 *(int *)(evtp->evt_arg1) =
46fa311e
JS		 316 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
317 lpfc_unblock_mgmt_io(phba);
41415862
JW		 318 complete((struct completion *)(evtp->evt_arg2));
319 break;
320 case LPFC_EVT_WARM_START:
46fa311e 321 lpfc_offline(phba);
9290831f 322 lpfc_reset_barrier(phba);
41415862
JW		 323 lpfc_sli_brdreset(phba);
324 lpfc_hba_down_post(phba);
325 *(int *)(evtp->evt_arg1) =
326 lpfc_sli_brdready(phba, HS_MBRDY);
46fa311e 327 lpfc_unblock_mgmt_io(phba);
41415862
JW		 328 complete((struct completion *)(evtp->evt_arg2));
329 break;
330 case LPFC_EVT_KILL:
46fa311e 331 lpfc_offline(phba);
9290831f 332 *(int *)(evtp->evt_arg1)
2e0fef85
JS		 333 = (phba->pport->stopped)
334 ? 0 : lpfc_sli_brdkill(phba);
46fa311e 335 lpfc_unblock_mgmt_io(phba);
dea3101e
JB		 336 complete((struct completion *)(evtp->evt_arg2));
337 break;
338 }
339 if (free_evt)
340 kfree(evtp);
2e0fef85 341 spin_lock_irq(&phba->hbalock);
dea3101e 342 }
2e0fef85 343 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 344
345}
346
858c9f6c 347void
2e0fef85 348lpfc_work_done(struct lpfc_hba *phba)
dea3101e
JB		 349{
350 struct lpfc_sli_ring *pring;
858c9f6c 351 uint32_t ha_copy, status, control, work_port_events;
2e0fef85 352 struct lpfc_vport *vport;
dea3101e 353
2e0fef85 354 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 355 ha_copy = phba->work_ha;
356 phba->work_ha = 0;
2e0fef85 357 spin_unlock_irq(&phba->hbalock);
dea3101e 358
2fe165b6 359 if (ha_copy & HA_ERATT)
dea3101e
JB		 360 lpfc_handle_eratt(phba);
361
2fe165b6 362 if (ha_copy & HA_MBATT)
dea3101e
JB		 363 lpfc_sli_handle_mb_event(phba);
364
2fe165b6 365 if (ha_copy & HA_LATT)
dea3101e
JB		 366 lpfc_handle_latt(phba);
367
92d7f7b0
JS		 368 spin_lock_irq(&phba->hbalock);
369 list_for_each_entry(vport, &phba->port_list, listentry) {
370 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 371
92d7f7b0
JS		 372 if (!scsi_host_get(shost)) {
373 continue;
374 }
375 spin_unlock_irq(&phba->hbalock);
376 work_port_events = vport->work_port_events;
dea3101e 377
92d7f7b0
JS		 378 if (work_port_events & WORKER_DISC_TMO)
379 lpfc_disc_timeout_handler(vport);
2e0fef85 380
92d7f7b0
JS		 381 if (work_port_events & WORKER_ELS_TMO)
382 lpfc_els_timeout_handler(vport);
2e0fef85 383
858c9f6c
JS		 384 if (work_port_events & WORKER_HB_TMO)
385 lpfc_hb_timeout_handler(phba);
386
92d7f7b0
JS		 387 if (work_port_events & WORKER_MBOX_TMO)
388 lpfc_mbox_timeout_handler(phba);
dea3101e 389
92d7f7b0
JS		 390 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
391 lpfc_unblock_fabric_iocbs(phba);
dea3101e 392
92d7f7b0
JS		 393 if (work_port_events & WORKER_FDMI_TMO)
394 lpfc_fdmi_timeout_handler(vport);
395
396 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
397 lpfc_ramp_down_queue_handler(phba);
398
399 if (work_port_events & WORKER_RAMP_UP_QUEUE)
400 lpfc_ramp_up_queue_handler(phba);
401
402 spin_lock_irq(&vport->work_port_lock);
403 vport->work_port_events &= ~work_port_events;
404 spin_unlock_irq(&vport->work_port_lock);
405 scsi_host_put(shost);
406 spin_lock_irq(&phba->hbalock);
407 }
2e0fef85 408 spin_unlock_irq(&phba->hbalock);
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
JS		 450 struct lpfc_vport *vport;
451 struct lpfc_sli_ring *pring;
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;
458 goto exit;
459 }
460 }
dea3101e 461
92d7f7b0
JS		 462 if (phba->work_ha || (!list_empty(&phba->work_list)) ||
463 kthread_should_stop()) {
2e0fef85 464 rc = 1;
92d7f7b0
JS		 465 goto exit;
466 }
858c9f6c
JS		 467
468 pring = &phba->sli.ring[LPFC_ELS_RING];
469 if (pring->flag & LPFC_DEFERRED_RING_EVENT)
470 rc = 1;
92d7f7b0
JS		 471exit:
472 if (rc)
473 phba->work_found++;
474 else
475 phba->work_found = 0;
2e0fef85
JS		 476
477 spin_unlock_irq(&phba->hbalock);
478 return rc;
dea3101e
JB		 479}
480
92d7f7b0 481
dea3101e
JB		 482int
483lpfc_do_work(void *p)
484{
485 struct lpfc_hba *phba = p;
486 int rc;
7259f0d0 487 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq);
dea3101e
JB		 488
489 set_user_nice(current, -20);
490 phba->work_wait = &work_waitq;
92d7f7b0 491 phba->work_found = 0;
dea3101e
JB		 492
493 while (1) {
494
495 rc = wait_event_interruptible(work_waitq,
92d7f7b0
JS		 496 check_work_wait_done(phba));
497
dea3101e
JB		 498 BUG_ON(rc);
499
500 if (kthread_should_stop())
501 break;
502
503 lpfc_work_done(phba);
504
92d7f7b0
JS		 505 /* If there is alot of slow ring work, like during link up
506 * check_work_wait_done() may cause this thread to not give
507 * up the CPU for very long periods of time. This may cause
508 * soft lockups or other problems. To avoid these situations
509 * give up the CPU here after LPFC_MAX_WORKER_ITERATION
510 * consecutive iterations.
511 */
512 if (phba->work_found >= LPFC_MAX_WORKER_ITERATION) {
513 phba->work_found = 0;
514 schedule();
515 }
dea3101e
JB		 516 }
517 phba->work_wait = NULL;
518 return 0;
519}
520
521/*
522 * This is only called to handle FC worker events. Since this a rare
523 * occurance, we allocate a struct lpfc_work_evt structure here instead of
524 * embedding it in the IOCB.
525 */
526int
2e0fef85 527lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
dea3101e
JB		 528 uint32_t evt)
529{
530 struct lpfc_work_evt *evtp;
ed957684 531 unsigned long flags;
dea3101e
JB		 532
533 /*
534 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
535 * be queued to worker thread for processing
536 */
92d7f7b0 537 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
dea3101e
JB		 538 if (!evtp)
539 return 0;
540
541 evtp->evt_arg1 = arg1;
542 evtp->evt_arg2 = arg2;
543 evtp->evt = evt;
544
ed957684 545 spin_lock_irqsave(&phba->hbalock, flags);
071fbd3d 546 list_add_tail(&evtp->evt_listp, &phba->work_list);
dea3101e 547 if (phba->work_wait)
92d7f7b0 548 lpfc_worker_wake_up(phba);
ed957684 549 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e
JB		 550
551 return 1;
552}
553
92d7f7b0
JS		 554void
555lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
556{
557 struct lpfc_hba *phba = vport->phba;
558 struct lpfc_nodelist *ndlp, *next_ndlp;
559 int rc;
560
561 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
562 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
563 continue;
564
565 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN)
566 lpfc_unreg_rpi(vport, ndlp);
567
568 /* Leave Fabric nodes alone on link down */
569 if (!remove && ndlp->nlp_type & NLP_FABRIC)
570 continue;
571 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
572 remove
573 ? NLP_EVT_DEVICE_RM
574 : NLP_EVT_DEVICE_RECOVERY);
575 }
576 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
577 lpfc_mbx_unreg_vpi(vport);
578 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
579 }
580}
581
582static void
583lpfc_linkdown_port(struct lpfc_vport *vport)
584{
585 struct lpfc_nodelist *ndlp, *next_ndlp;
586 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
587
588 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
589
858c9f6c
JS		 590 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
591 "Link Down: state:x%x rtry:x%x flg:x%x",
592 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
593
92d7f7b0
JS		 594 /* Cleanup any outstanding RSCN activity */
595 lpfc_els_flush_rscn(vport);
596
597 /* Cleanup any outstanding ELS commands */
598 lpfc_els_flush_cmd(vport);
599
600 lpfc_cleanup_rpis(vport, 0);
601
602 /* free any ndlp's on unused list */
603 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp)
604 /* free any ndlp's in unused state */
605 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
606 lpfc_drop_node(vport, ndlp);
607
608 /* Turn off discovery timer if its running */
609 lpfc_can_disctmo(vport);
610}
611
dea3101e 612int
685f0bf7 613lpfc_linkdown(struct lpfc_hba *phba)
dea3101e 614{
2e0fef85
JS		 615 struct lpfc_vport *vport = phba->pport;
616 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0 617 struct lpfc_vport *port_iterator;
685f0bf7 618 LPFC_MBOXQ_t *mb;
dea3101e 619
2e0fef85
JS		 620 if (phba->link_state == LPFC_LINK_DOWN) {
621 return 0;
c9f8735b 622 }
2e0fef85 623 spin_lock_irq(&phba->hbalock);
92d7f7b0 624 if (phba->link_state > LPFC_LINK_DOWN) {
2e0fef85 625 phba->link_state = LPFC_LINK_DOWN;
92d7f7b0
JS		 626 phba->pport->fc_flag &= ~FC_LBIT;
627 }
2e0fef85 628 spin_unlock_irq(&phba->hbalock);
dea3101e 629
92d7f7b0
JS		 630 list_for_each_entry(port_iterator, &phba->port_list, listentry) {
631
632 /* Issue a LINK DOWN event to all nodes */
633 lpfc_linkdown_port(port_iterator);
634 }
d2873e4c 635
dea3101e 636 /* Clean up any firmware default rpi's */
2e0fef85
JS		 637 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
638 if (mb) {
92d7f7b0 639 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
ed957684 640 mb->vport = vport;
2e0fef85 641 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
dea3101e
JB		 642 if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
643 == MBX_NOT_FINISHED) {
2e0fef85 644 mempool_free(mb, phba->mbox_mem_pool);
dea3101e
JB		 645 }
646 }
647
dea3101e 648 /* Setup myDID for link up if we are in pt2pt mode */
92d7f7b0
JS		 649 if (phba->pport->fc_flag & FC_PT2PT) {
650 phba->pport->fc_myDID = 0;
2e0fef85
JS		 651 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
652 if (mb) {
dea3101e 653 lpfc_config_link(phba, mb);
92d7f7b0 654 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
ed957684 655 mb->vport = vport;
2e0fef85
JS		 656 if (lpfc_sli_issue_mbox(phba, mb,
657 (MBX_NOWAIT | MBX_STOP_IOCB))
dea3101e 658 == MBX_NOT_FINISHED) {
2e0fef85 659 mempool_free(mb, phba->mbox_mem_pool);
dea3101e
JB		 660 }
661 }
2e0fef85 662 spin_lock_irq(shost->host_lock);
92d7f7b0 663 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
2e0fef85 664 spin_unlock_irq(shost->host_lock);
dea3101e 665 }
2e0fef85 666
92d7f7b0
JS		 667 return 0;
668}
dea3101e 669
92d7f7b0
JS		 670static void
671lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
672{
673 struct lpfc_nodelist *ndlp;
dea3101e 674
92d7f7b0
JS		 675 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
676 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
677 continue;
678
679 if (ndlp->nlp_type & NLP_FABRIC) {
680 /* On Linkup its safe to clean up the ndlp
681 * from Fabric connections.
682 */
683 if (ndlp->nlp_DID != Fabric_DID)
684 lpfc_unreg_rpi(vport, ndlp);
685 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
686 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
687 /* Fail outstanding IO now since device is
688 * marked for PLOGI.
689 */
690 lpfc_unreg_rpi(vport, ndlp);
691 }
692 }
dea3101e
JB		 693}
694
92d7f7b0
JS		 695static void
696lpfc_linkup_port(struct lpfc_vport *vport)
dea3101e 697{
92d7f7b0 698 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 699 struct lpfc_nodelist *ndlp, *next_ndlp;
92d7f7b0
JS		 700 struct lpfc_hba *phba = vport->phba;
701
702 if ((vport->load_flag & FC_UNLOADING) != 0)
703 return;
704
858c9f6c
JS		 705 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
706 "Link Up: top:x%x speed:x%x flg:x%x",
707 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
708
92d7f7b0
JS		 709 /* If NPIV is not enabled, only bring the physical port up */
710 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
711 (vport != phba->pport))
712 return;
dea3101e 713
2e0fef85 714 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
d2873e4c 715
2e0fef85 716 spin_lock_irq(shost->host_lock);
2e0fef85
JS		 717 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
718 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
719 vport->fc_flag |= FC_NDISC_ACTIVE;
720 vport->fc_ns_retry = 0;
721 spin_unlock_irq(shost->host_lock);
dea3101e 722
92d7f7b0
JS		 723 if (vport->fc_flag & FC_LBIT)
724 lpfc_linkup_cleanup_nodes(vport);
dea3101e 725
92d7f7b0 726 /* free any ndlp's in unused state */
2e0fef85 727 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
92d7f7b0 728 nlp_listp)
685f0bf7 729 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2e0fef85 730 lpfc_drop_node(vport, ndlp);
92d7f7b0
JS		 731}
732
733static int
734lpfc_linkup(struct lpfc_hba *phba)
735{
736 struct lpfc_vport *vport;
737
738 phba->link_state = LPFC_LINK_UP;
739
740 /* Unblock fabric iocbs if they are blocked */
741 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
742 del_timer_sync(&phba->fabric_block_timer);
743
744 list_for_each_entry(vport, &phba->port_list, listentry) {
745 lpfc_linkup_port(vport);
685f0bf7 746 }
92d7f7b0
JS		 747 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
748 lpfc_issue_clear_la(phba, phba->pport);
dea3101e
JB		 749
750 return 0;
751}
752
753/*
754 * This routine handles processing a CLEAR_LA mailbox
755 * command upon completion. It is setup in the LPFC_MBOXQ
756 * as the completion routine when the command is
757 * handed off to the SLI layer.
758 */
759void
2e0fef85 760lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 761{
2e0fef85
JS		 762 struct lpfc_vport *vport = pmb->vport;
763 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
764 struct lpfc_sli *psli = &phba->sli;
765 MAILBOX_t *mb = &pmb->mb;
dea3101e
JB		 766 uint32_t control;
767
dea3101e 768 /* Since we don't do discovery right now, turn these off here */
a4bc3379 769 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e
JB		 770 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
771 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
772
773 /* Check for error */
774 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
92d7f7b0 775 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
dea3101e 776 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
92d7f7b0 777 "%d (%d):0320 CLEAR_LA mbxStatus error x%x hba "
dea3101e 778 "state x%x\n",
92d7f7b0
JS		 779 phba->brd_no, vport->vpi, mb->mbxStatus,
780 vport->port_state);
dea3101e 781
2e0fef85 782 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 783 goto out;
784 }
785
92d7f7b0
JS		 786 if (vport->port_type == LPFC_PHYSICAL_PORT)
787 phba->link_state = LPFC_HBA_READY;
788
789 spin_lock_irq(&phba->hbalock);
790 psli->sli_flag |= LPFC_PROCESS_LA;
791 control = readl(phba->HCregaddr);
792 control |= HC_LAINT_ENA;
793 writel(control, phba->HCregaddr);
794 readl(phba->HCregaddr); /* flush */
795 spin_unlock_irq(&phba->hbalock);
796 return;
dea3101e 797
2e0fef85
JS		 798 vport->num_disc_nodes = 0;
799 /* go thru NPR nodes and issue ELS PLOGIs */
800 if (vport->fc_npr_cnt)
801 lpfc_els_disc_plogi(vport);
dea3101e 802
2e0fef85
JS		 803 if (!vport->num_disc_nodes) {
804 spin_lock_irq(shost->host_lock);
805 vport->fc_flag &= ~FC_NDISC_ACTIVE;
806 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 807 }
808
2e0fef85 809 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 810
811out:
812 /* Device Discovery completes */
ed957684 813 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
92d7f7b0
JS		 814 "%d (%d):0225 Device Discovery completes\n",
815 phba->brd_no, vport->vpi);
dea3101e 816
2e0fef85 817 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 818
2e0fef85
JS		 819 spin_lock_irq(shost->host_lock);
820 vport->fc_flag &= ~(FC_ABORT_DISCOVERY | FC_ESTABLISH_LINK);
821 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 822
823 del_timer_sync(&phba->fc_estabtmo);
824
2e0fef85 825 lpfc_can_disctmo(vport);
dea3101e
JB		 826
827 /* turn on Link Attention interrupts */
2e0fef85
JS		 828
829 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 830 psli->sli_flag |= LPFC_PROCESS_LA;
831 control = readl(phba->HCregaddr);
832 control |= HC_LAINT_ENA;
833 writel(control, phba->HCregaddr);
834 readl(phba->HCregaddr); /* flush */
2e0fef85 835 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 836
837 return;
838}
839
2e0fef85 840
dea3101e 841static void
25594c6b 842lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 843{
2e0fef85 844 struct lpfc_vport *vport = pmb->vport;
dea3101e 845
25594c6b 846 if (pmb->mb.mbxStatus)
dea3101e 847 goto out;
dea3101e 848
25594c6b
JW		 849 mempool_free(pmb, phba->mbox_mem_pool);
850
851 if (phba->fc_topology == TOPOLOGY_LOOP &&
2e0fef85
JS		 852 vport->fc_flag & FC_PUBLIC_LOOP &&
853 !(vport->fc_flag & FC_LBIT)) {
25594c6b 854 /* Need to wait for FAN - use discovery timer
2e0fef85 855 * for timeout. port_state is identically
25594c6b
JW		 856 * LPFC_LOCAL_CFG_LINK while waiting for FAN
857 */
2e0fef85 858 lpfc_set_disctmo(vport);
25594c6b 859 return;
92d7f7b0 860 }
dea3101e 861
2e0fef85 862 /* Start discovery by sending a FLOGI. port_state is identically
25594c6b
JW		 863 * LPFC_FLOGI while waiting for FLOGI cmpl
864 */
92d7f7b0
JS		 865 if (vport->port_state != LPFC_FLOGI) {
866 vport->port_state = LPFC_FLOGI;
867 lpfc_set_disctmo(vport);
868 lpfc_initial_flogi(vport);
869 }
25594c6b 870 return;
dea3101e
JB		 871
872out:
25594c6b 873 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
92d7f7b0 874 "%d (%d):0306 CONFIG_LINK mbxStatus error x%x "
25594c6b 875 "HBA state x%x\n",
92d7f7b0
JS		 876 phba->brd_no, vport->vpi, pmb->mb.mbxStatus,
877 vport->port_state);
25594c6b 878
92d7f7b0 879 mempool_free(pmb, phba->mbox_mem_pool);
25594c6b 880
92d7f7b0 881 lpfc_linkdown(phba);
25594c6b
JW		 882
883 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
92d7f7b0
JS		 884 "%d (%d):0200 CONFIG_LINK bad hba state x%x\n",
885 phba->brd_no, vport->vpi, vport->port_state);
dea3101e 886
92d7f7b0 887 lpfc_issue_clear_la(phba, vport);
dea3101e
JB		 888 return;
889}
890
891static void
2e0fef85 892lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 893{
dea3101e
JB		 894 MAILBOX_t *mb = &pmb->mb;
895 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
2e0fef85 896 struct lpfc_vport *vport = pmb->vport;
dea3101e
JB		 897
898
899 /* Check for error */
900 if (mb->mbxStatus) {
901 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
902 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
92d7f7b0 903 "%d (%d):0319 READ_SPARAM mbxStatus error x%x "
dea3101e 904 "hba state x%x>\n",
92d7f7b0
JS		 905 phba->brd_no, vport->vpi, mb->mbxStatus,
906 vport->port_state);
dea3101e
JB		 907
908 lpfc_linkdown(phba);
dea3101e
JB		 909 goto out;
910 }
911
2e0fef85 912 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
dea3101e 913 sizeof (struct serv_parm));
a12e07bc 914 if (phba->cfg_soft_wwnn)
2e0fef85
JS		 915 u64_to_wwn(phba->cfg_soft_wwnn,
916 vport->fc_sparam.nodeName.u.wwn);
c3f28afa 917 if (phba->cfg_soft_wwpn)
2e0fef85
JS		 918 u64_to_wwn(phba->cfg_soft_wwpn,
919 vport->fc_sparam.portName.u.wwn);
92d7f7b0
JS		 920 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
921 sizeof(vport->fc_nodename));
922 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
923 sizeof(vport->fc_portname));
924 if (vport->port_type == LPFC_PHYSICAL_PORT) {
925 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
926 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
927 }
928
dea3101e
JB		 929 lpfc_mbuf_free(phba, mp->virt, mp->phys);
930 kfree(mp);
2e0fef85 931 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 932 return;
933
934out:
935 pmb->context1 = NULL;
936 lpfc_mbuf_free(phba, mp->virt, mp->phys);
937 kfree(mp);
92d7f7b0
JS		 938 lpfc_issue_clear_la(phba, vport);
939 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 940 return;
941}
942
943static void
92d7f7b0 944lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
dea3101e 945{
92d7f7b0 946 struct lpfc_vport *vport = phba->pport;
dea3101e 947 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
2e0fef85 948 int i;
14691150
JS		 949 struct lpfc_dmabuf *mp;
950 int rc;
951
dea3101e
JB		 952 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
953 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
954
92d7f7b0 955 spin_lock_irq(&phba->hbalock);
2fe165b6 956 switch (la->UlnkSpeed) {
92d7f7b0
JS		 957 case LA_1GHZ_LINK:
958 phba->fc_linkspeed = LA_1GHZ_LINK;
959 break;
960 case LA_2GHZ_LINK:
961 phba->fc_linkspeed = LA_2GHZ_LINK;
962 break;
963 case LA_4GHZ_LINK:
964 phba->fc_linkspeed = LA_4GHZ_LINK;
965 break;
966 case LA_8GHZ_LINK:
967 phba->fc_linkspeed = LA_8GHZ_LINK;
968 break;
969 default:
970 phba->fc_linkspeed = LA_UNKNW_LINK;
971 break;
dea3101e
JB		 972 }
973
974 phba->fc_topology = la->topology;
92d7f7b0 975 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
dea3101e
JB		 976
977 if (phba->fc_topology == TOPOLOGY_LOOP) {
92d7f7b0 978 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
dea3101e 979
92d7f7b0 980 /* Get Loop Map information */
dea3101e 981 if (la->il)
2e0fef85 982 vport->fc_flag |= FC_LBIT;
dea3101e 983
2e0fef85 984 vport->fc_myDID = la->granted_AL_PA;
dea3101e
JB		 985 i = la->un.lilpBde64.tus.f.bdeSize;
986
987 if (i == 0) {
988 phba->alpa_map[0] = 0;
989 } else {
990 if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
991 int numalpa, j, k;
992 union {
993 uint8_t pamap[16];
994 struct {
995 uint32_t wd1;
996 uint32_t wd2;
997 uint32_t wd3;
998 uint32_t wd4;
999 } pa;
1000 } un;
1001 numalpa = phba->alpa_map[0];
1002 j = 0;
1003 while (j < numalpa) {
1004 memset(un.pamap, 0, 16);
1005 for (k = 1; j < numalpa; k++) {
1006 un.pamap[k - 1] =
1007 phba->alpa_map[j + 1];
1008 j++;
1009 if (k == 16)
1010 break;
1011 }
1012 /* Link Up Event ALPA map */
1013 lpfc_printf_log(phba,
92d7f7b0
JS		 1014 KERN_WARNING,
1015 LOG_LINK_EVENT,
1016 "%d:1304 Link Up Event "
1017 "ALPA map Data: x%x "
1018 "x%x x%x x%x\n",
1019 phba->brd_no,
1020 un.pa.wd1, un.pa.wd2,
1021 un.pa.wd3, un.pa.wd4);
dea3101e
JB		 1022 }
1023 }
1024 }
1025 } else {
92d7f7b0 1026 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
858c9f6c 1027 if (phba->max_vpi && phba->cfg_npiv_enable &&
92d7f7b0
JS		 1028 (phba->sli_rev == 3))
1029 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
1030 }
2e0fef85
JS		 1031 vport->fc_myDID = phba->fc_pref_DID;
1032 vport->fc_flag |= FC_LBIT;
dea3101e 1033 }
92d7f7b0 1034 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 1035
1036 lpfc_linkup(phba);
1037 if (sparam_mbox) {
92d7f7b0 1038 lpfc_read_sparam(phba, sparam_mbox, 0);
2e0fef85 1039 sparam_mbox->vport = vport;
dea3101e 1040 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
14691150 1041 rc = lpfc_sli_issue_mbox(phba, sparam_mbox,
92d7f7b0 1042 (MBX_NOWAIT | MBX_STOP_IOCB));
14691150
JS		 1043 if (rc == MBX_NOT_FINISHED) {
1044 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
1045 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1046 kfree(mp);
1047 mempool_free(sparam_mbox, phba->mbox_mem_pool);
1048 if (cfglink_mbox)
1049 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
92d7f7b0 1050 goto out;
14691150 1051 }
dea3101e
JB		 1052 }
1053
1054 if (cfglink_mbox) {
2e0fef85 1055 vport->port_state = LPFC_LOCAL_CFG_LINK;
dea3101e 1056 lpfc_config_link(phba, cfglink_mbox);
2e0fef85 1057 cfglink_mbox->vport = vport;
25594c6b 1058 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
14691150 1059 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox,
92d7f7b0
JS		 1060 (MBX_NOWAIT | MBX_STOP_IOCB));
1061 if (rc != MBX_NOT_FINISHED)
1062 return;
1063 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
dea3101e 1064 }
92d7f7b0
JS		 1065out:
1066 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1067 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1068 "%d (%d):0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
1069 phba->brd_no, vport->vpi,
1070 vport->port_state, sparam_mbox, cfglink_mbox);
1071
1072 lpfc_issue_clear_la(phba, vport);
1073 return;
dea3101e
JB		 1074}
1075
1076static void
2e0fef85
JS		 1077lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
1078{
dea3101e
JB		 1079 uint32_t control;
1080 struct lpfc_sli *psli = &phba->sli;
1081
1082 lpfc_linkdown(phba);
1083
1084 /* turn on Link Attention interrupts - no CLEAR_LA needed */
2e0fef85 1085 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 1086 psli->sli_flag |= LPFC_PROCESS_LA;
1087 control = readl(phba->HCregaddr);
1088 control |= HC_LAINT_ENA;
1089 writel(control, phba->HCregaddr);
1090 readl(phba->HCregaddr); /* flush */
2e0fef85 1091 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 1092}
1093
1094/*
1095 * This routine handles processing a READ_LA mailbox
1096 * command upon completion. It is setup in the LPFC_MBOXQ
1097 * as the completion routine when the command is
1098 * handed off to the SLI layer.
1099 */
1100void
2e0fef85 1101lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1102{
2e0fef85
JS		 1103 struct lpfc_vport *vport = pmb->vport;
1104 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e
JB		 1105 READ_LA_VAR *la;
1106 MAILBOX_t *mb = &pmb->mb;
1107 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1108
1109 /* Check for error */
1110 if (mb->mbxStatus) {
ed957684 1111 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
dea3101e 1112 "%d:1307 READ_LA mbox error x%x state x%x\n",
ed957684 1113 phba->brd_no, mb->mbxStatus, vport->port_state);
dea3101e 1114 lpfc_mbx_issue_link_down(phba);
2e0fef85 1115 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 1116 goto lpfc_mbx_cmpl_read_la_free_mbuf;
1117 }
1118
1119 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
1120
1121 memcpy(&phba->alpa_map[0], mp->virt, 128);
1122
2e0fef85 1123 spin_lock_irq(shost->host_lock);
c9f8735b 1124 if (la->pb)
2e0fef85 1125 vport->fc_flag |= FC_BYPASSED_MODE;
c9f8735b 1126 else
2e0fef85
JS		 1127 vport->fc_flag &= ~FC_BYPASSED_MODE;
1128 spin_unlock_irq(shost->host_lock);
c9f8735b 1129
dea3101e 1130 if (((phba->fc_eventTag + 1) < la->eventTag) ||
92d7f7b0 1131 (phba->fc_eventTag == la->eventTag)) {
dea3101e 1132 phba->fc_stat.LinkMultiEvent++;
2e0fef85 1133 if (la->attType == AT_LINK_UP)
dea3101e
JB		 1134 if (phba->fc_eventTag != 0)
1135 lpfc_linkdown(phba);
92d7f7b0 1136 }
dea3101e
JB		 1137
1138 phba->fc_eventTag = la->eventTag;
1139
1140 if (la->attType == AT_LINK_UP) {
1141 phba->fc_stat.LinkUp++;
2e0fef85 1142 if (phba->link_flag & LS_LOOPBACK_MODE) {
5b8bd0c9
JS		 1143 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1144 "%d:1306 Link Up Event in loop back mode "
1145 "x%x received Data: x%x x%x x%x x%x\n",
1146 phba->brd_no, la->eventTag, phba->fc_eventTag,
1147 la->granted_AL_PA, la->UlnkSpeed,
1148 phba->alpa_map[0]);
1149 } else {
1150 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
dea3101e
JB		 1151 "%d:1303 Link Up Event x%x received "
1152 "Data: x%x x%x x%x x%x\n",
1153 phba->brd_no, la->eventTag, phba->fc_eventTag,
1154 la->granted_AL_PA, la->UlnkSpeed,
1155 phba->alpa_map[0]);
5b8bd0c9 1156 }
92d7f7b0 1157 lpfc_mbx_process_link_up(phba, la);
dea3101e
JB		 1158 } else {
1159 phba->fc_stat.LinkDown++;
1160 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1161 "%d:1305 Link Down Event x%x received "
1162 "Data: x%x x%x x%x\n",
1163 phba->brd_no, la->eventTag, phba->fc_eventTag,
2e0fef85 1164 phba->pport->port_state, vport->fc_flag);
dea3101e
JB		 1165 lpfc_mbx_issue_link_down(phba);
1166 }
1167
1168lpfc_mbx_cmpl_read_la_free_mbuf:
1169 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1170 kfree(mp);
1171 mempool_free(pmb, phba->mbox_mem_pool);
1172 return;
1173}
1174
1175/*
1176 * This routine handles processing a REG_LOGIN mailbox
1177 * command upon completion. It is setup in the LPFC_MBOXQ
1178 * as the completion routine when the command is
1179 * handed off to the SLI layer.
1180 */
1181void
2e0fef85 1182lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1183{
2e0fef85 1184 struct lpfc_vport *vport = pmb->vport;
92d7f7b0 1185 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2e0fef85 1186 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
dea3101e 1187
dea3101e
JB		 1188 pmb->context1 = NULL;
1189
1190 /* Good status, call state machine */
2e0fef85 1191 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
dea3101e
JB		 1192 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1193 kfree(mp);
2e0fef85 1194 mempool_free(pmb, phba->mbox_mem_pool);
329f9bc7 1195 lpfc_nlp_put(ndlp);
dea3101e
JB		 1196
1197 return;
1198}
1199
92d7f7b0
JS		 1200static void
1201lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1202{
1203 MAILBOX_t *mb = &pmb->mb;
1204 struct lpfc_vport *vport = pmb->vport;
1205 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1206
1207 switch (mb->mbxStatus) {
1208 case 0x0011:
1209 case 0x0020:
1210 case 0x9700:
1211 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1212 "%d (%d):0911 cmpl_unreg_vpi, "
1213 "mb status = 0x%x\n",
1214 phba->brd_no, vport->vpi, mb->mbxStatus);
1215 break;
92d7f7b0
JS		 1216 }
1217 vport->unreg_vpi_cmpl = VPORT_OK;
1218 mempool_free(pmb, phba->mbox_mem_pool);
1219 /*
1220 * This shost reference might have been taken at the beginning of
1221 * lpfc_vport_delete()
1222 */
1223 if (vport->load_flag & FC_UNLOADING)
1224 scsi_host_put(shost);
1225}
1226
1227void
1228lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
1229{
1230 struct lpfc_hba *phba = vport->phba;
1231 LPFC_MBOXQ_t *mbox;
1232 int rc;
1233
1234 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1235 if (!mbox)
1236 return;
1237
1238 lpfc_unreg_vpi(phba, vport->vpi, mbox);
1239 mbox->vport = vport;
1240 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
1241 rc = lpfc_sli_issue_mbox(phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
1242 if (rc == MBX_NOT_FINISHED) {
1243 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT,
1244 "%d (%d):1800 Could not issue unreg_vpi\n",
1245 phba->brd_no, vport->vpi);
1246 mempool_free(mbox, phba->mbox_mem_pool);
1247 vport->unreg_vpi_cmpl = VPORT_ERROR;
1248 }
1249}
1250
1251static void
1252lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1253{
1254 struct lpfc_vport *vport = pmb->vport;
1255 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1256 MAILBOX_t *mb = &pmb->mb;
1257
1258 switch (mb->mbxStatus) {
1259 case 0x0011:
1260 case 0x9601:
1261 case 0x9602:
1262 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
1263 "%d (%d):0912 cmpl_reg_vpi, mb status = 0x%x\n",
1264 phba->brd_no, vport->vpi, mb->mbxStatus);
1265 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1266 spin_lock_irq(shost->host_lock);
1267 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1268 spin_unlock_irq(shost->host_lock);
1269 vport->fc_myDID = 0;
1270 goto out;
1271 }
92d7f7b0
JS		 1272
1273 vport->num_disc_nodes = 0;
1274 /* go thru NPR list and issue ELS PLOGIs */
1275 if (vport->fc_npr_cnt)
1276 lpfc_els_disc_plogi(vport);
1277
1278 if (!vport->num_disc_nodes) {
1279 spin_lock_irq(shost->host_lock);
1280 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1281 spin_unlock_irq(shost->host_lock);
1282 lpfc_can_disctmo(vport);
1283 }
1284 vport->port_state = LPFC_VPORT_READY;
1285
1286out:
1287 mempool_free(pmb, phba->mbox_mem_pool);
1288 return;
1289}
1290
dea3101e
JB		 1291/*
1292 * This routine handles processing a Fabric REG_LOGIN mailbox
1293 * command upon completion. It is setup in the LPFC_MBOXQ
1294 * as the completion routine when the command is
1295 * handed off to the SLI layer.
1296 */
1297void
2e0fef85 1298lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1299{
92d7f7b0
JS		 1300 struct lpfc_vport *vport = pmb->vport;
1301 struct lpfc_vport *next_vport;
2e0fef85
JS		 1302 MAILBOX_t *mb = &pmb->mb;
1303 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
92d7f7b0 1304 struct lpfc_nodelist *ndlp;
dea3101e 1305 ndlp = (struct lpfc_nodelist *) pmb->context2;
dea3101e 1306
329f9bc7
JS		 1307 pmb->context1 = NULL;
1308 pmb->context2 = NULL;
1309
dea3101e
JB		 1310 if (mb->mbxStatus) {
1311 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1312 kfree(mp);
329f9bc7
JS		 1313 mempool_free(pmb, phba->mbox_mem_pool);
1314 lpfc_nlp_put(ndlp);
dea3101e 1315
92d7f7b0
JS		 1316 if (phba->fc_topology == TOPOLOGY_LOOP) {
1317 /* FLOGI failed, use loop map to make discovery list */
1318 lpfc_disc_list_loopmap(vport);
1319
1320 /* Start discovery */
1321 lpfc_disc_start(vport);
1322 return;
1323 }
1324
1325 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1326 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1327 "%d (%d):0258 Register Fabric login error: 0x%x\n",
1328 phba->brd_no, vport->vpi, mb->mbxStatus);
dea3101e 1329
dea3101e
JB		 1330 return;
1331 }
1332
dea3101e 1333 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1334 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 1335 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1336
329f9bc7
JS		 1337 lpfc_nlp_put(ndlp); /* Drop the reference from the mbox */
1338
2e0fef85 1339 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
92d7f7b0
JS		 1340 list_for_each_entry(next_vport, &phba->port_list, listentry) {
1341 if (next_vport->port_type == LPFC_PHYSICAL_PORT)
1342 continue;
2e0fef85 1343
92d7f7b0
JS		 1344 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
1345 lpfc_initial_fdisc(next_vport);
858c9f6c
JS		 1346 else if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
1347 lpfc_vport_set_state(vport,
1348 FC_VPORT_NO_FABRIC_SUPP);
1349 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
92d7f7b0
JS		 1350 "%d (%d):0259 No NPIV Fabric "
1351 "support\n",
1352 phba->brd_no, vport->vpi);
dea3101e
JB		 1353 }
1354 }
92d7f7b0 1355 lpfc_do_scr_ns_plogi(phba, vport);
dea3101e
JB		 1356 }
1357
1358 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1359 kfree(mp);
329f9bc7 1360 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 1361 return;
1362}
1363
1364/*
1365 * This routine handles processing a NameServer REG_LOGIN mailbox
1366 * command upon completion. It is setup in the LPFC_MBOXQ
1367 * as the completion routine when the command is
1368 * handed off to the SLI layer.
1369 */
1370void
2e0fef85 1371lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1372{
2e0fef85
JS		 1373 MAILBOX_t *mb = &pmb->mb;
1374 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1375 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
1376 struct lpfc_vport *vport = pmb->vport;
dea3101e
JB		 1377
1378 if (mb->mbxStatus) {
92d7f7b0 1379out:
329f9bc7 1380 lpfc_nlp_put(ndlp);
dea3101e
JB		 1381 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1382 kfree(mp);
de0c5b32 1383 mempool_free(pmb, phba->mbox_mem_pool);
2e0fef85 1384 lpfc_drop_node(vport, ndlp);
dea3101e 1385
92d7f7b0
JS		 1386 if (phba->fc_topology == TOPOLOGY_LOOP) {
1387 /*
1388 * RegLogin failed, use loop map to make discovery
1389 * list
1390 */
1391 lpfc_disc_list_loopmap(vport);
dea3101e 1392
92d7f7b0
JS		 1393 /* Start discovery */
1394 lpfc_disc_start(vport);
1395 return;
1396 }
1397 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1398 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
1399 "%d (%d):0260 Register NameServer error: 0x%x\n",
1400 phba->brd_no, vport->vpi, mb->mbxStatus);
dea3101e
JB		 1401 return;
1402 }
1403
1404 pmb->context1 = NULL;
1405
dea3101e 1406 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1407 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 1408 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1409
2e0fef85
JS		 1410 if (vport->port_state < LPFC_VPORT_READY) {
1411 /* Link up discovery requires Fabric registration. */
92d7f7b0
JS		 1412 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
1413 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
1414 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
1415 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
1416 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
1417
1418 /* Issue SCR just before NameServer GID_FT Query */
1419 lpfc_issue_els_scr(vport, SCR_DID, 0);
dea3101e
JB		 1420 }
1421
2e0fef85 1422 vport->fc_ns_retry = 0;
dea3101e 1423 /* Good status, issue CT Request to NameServer */
92d7f7b0 1424 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
dea3101e 1425 /* Cannot issue NameServer Query, so finish up discovery */
92d7f7b0 1426 goto out;
dea3101e
JB		 1427 }
1428
329f9bc7 1429 lpfc_nlp_put(ndlp);
dea3101e
JB		 1430 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1431 kfree(mp);
2e0fef85 1432 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 1433
1434 return;
1435}
1436
1437static void
2e0fef85 1438lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1439{
2e0fef85
JS		 1440 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1441 struct fc_rport *rport;
dea3101e
JB		 1442 struct lpfc_rport_data *rdata;
1443 struct fc_rport_identifiers rport_ids;
2e0fef85 1444 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1445
1446 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 1447 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1448 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e
JB		 1449 rport_ids.port_id = ndlp->nlp_DID;
1450 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e 1451
329f9bc7
JS		 1452 /*
1453 * We leave our node pointer in rport->dd_data when we unregister a
1454 * FCP target port. But fc_remote_port_add zeros the space to which
1455 * rport->dd_data points. So, if we're reusing a previously
1456 * registered port, drop the reference that we took the last time we
1457 * registered the port.
1458 */
1459 if (ndlp->rport && ndlp->rport->dd_data &&
92d7f7b0 1460 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp) {
329f9bc7
JS		 1461 lpfc_nlp_put(ndlp);
1462 }
858c9f6c
JS		 1463
1464 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
1465 "rport add: did:x%x flg:x%x type x%x",
1466 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1467
2e0fef85 1468 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
329f9bc7 1469 if (!rport || !get_device(&rport->dev)) {
dea3101e
JB		 1470 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1471 "Warning: fc_remote_port_add failed\n");
1472 return;
1473 }
1474
1475 /* initialize static port data */
1476 rport->maxframe_size = ndlp->nlp_maxframe;
1477 rport->supported_classes = ndlp->nlp_class_sup;
dea3101e 1478 rdata = rport->dd_data;
329f9bc7 1479 rdata->pnode = lpfc_nlp_get(ndlp);
23dc04f1
JSEC		 1480
1481 if (ndlp->nlp_type & NLP_FCP_TARGET)
1482 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1483 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1484 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1485
1486
1487 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1488 fc_remote_port_rolechg(rport, rport_ids.roles);
1489
071fbd3d 1490 if ((rport->scsi_target_id != -1) &&
92d7f7b0 1491 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
071fbd3d
JS		 1492 ndlp->nlp_sid = rport->scsi_target_id;
1493 }
19a7b4ae
JSEC		 1494 return;
1495}
1496
1497static void
2e0fef85 1498lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
19a7b4ae
JSEC		 1499{
1500 struct fc_rport *rport = ndlp->rport;
c01f3208 1501
858c9f6c
JS		 1502 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
1503 "rport delete: did:x%x flg:x%x type x%x",
1504 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1505
19a7b4ae 1506 fc_remote_port_delete(rport);
dea3101e
JB		 1507
1508 return;
1509}
1510
de0c5b32 1511static void
2e0fef85 1512lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
dea3101e 1513{
2e0fef85
JS		 1514 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1515
1516 spin_lock_irq(shost->host_lock);
de0c5b32
JS		 1517 switch (state) {
1518 case NLP_STE_UNUSED_NODE:
2e0fef85 1519 vport->fc_unused_cnt += count;
de0c5b32
JS		 1520 break;
1521 case NLP_STE_PLOGI_ISSUE:
2e0fef85 1522 vport->fc_plogi_cnt += count;
de0c5b32
JS		 1523 break;
1524 case NLP_STE_ADISC_ISSUE:
2e0fef85 1525 vport->fc_adisc_cnt += count;
dea3101e 1526 break;
de0c5b32 1527 case NLP_STE_REG_LOGIN_ISSUE:
2e0fef85 1528 vport->fc_reglogin_cnt += count;
de0c5b32
JS		 1529 break;
1530 case NLP_STE_PRLI_ISSUE:
2e0fef85 1531 vport->fc_prli_cnt += count;
de0c5b32
JS		 1532 break;
1533 case NLP_STE_UNMAPPED_NODE:
2e0fef85 1534 vport->fc_unmap_cnt += count;
de0c5b32
JS		 1535 break;
1536 case NLP_STE_MAPPED_NODE:
2e0fef85 1537 vport->fc_map_cnt += count;
de0c5b32
JS		 1538 break;
1539 case NLP_STE_NPR_NODE:
2e0fef85 1540 vport->fc_npr_cnt += count;
de0c5b32
JS		 1541 break;
1542 }
2e0fef85 1543 spin_unlock_irq(shost->host_lock);
de0c5b32 1544}
66a9ed66 1545
de0c5b32 1546static void
2e0fef85 1547lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
de0c5b32
JS		 1548 int old_state, int new_state)
1549{
2e0fef85
JS		 1550 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1551
de0c5b32
JS		 1552 if (new_state == NLP_STE_UNMAPPED_NODE) {
1553 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1554 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1555 ndlp->nlp_type |= NLP_FC_NODE;
1556 }
1557 if (new_state == NLP_STE_MAPPED_NODE)
1558 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1559 if (new_state == NLP_STE_NPR_NODE)
1560 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
1561
1562 /* Transport interface */
1563 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
1564 old_state == NLP_STE_UNMAPPED_NODE)) {
2e0fef85
JS		 1565 vport->phba->nport_event_cnt++;
1566 lpfc_unregister_remote_port(ndlp);
de0c5b32 1567 }
dea3101e 1568
de0c5b32
JS		 1569 if (new_state == NLP_STE_MAPPED_NODE ||
1570 new_state == NLP_STE_UNMAPPED_NODE) {
2e0fef85 1571 vport->phba->nport_event_cnt++;
858c9f6c
JS		 1572 /*
1573 * Tell the fc transport about the port, if we haven't
1574 * already. If we have, and it's a scsi entity, be
1575 * sure to unblock any attached scsi devices
1576 */
1577 lpfc_register_remote_port(vport, ndlp);
de0c5b32 1578 }
858c9f6c
JS		 1579 /*
1580 * if we added to Mapped list, but the remote port
1581 * registration failed or assigned a target id outside
1582 * our presentable range - move the node to the
1583 * Unmapped List
1584 */
de0c5b32
JS		 1585 if (new_state == NLP_STE_MAPPED_NODE &&
1586 (!ndlp->rport ||
1587 ndlp->rport->scsi_target_id == -1 ||
1588 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
2e0fef85 1589 spin_lock_irq(shost->host_lock);
de0c5b32 1590 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
2e0fef85
JS		 1591 spin_unlock_irq(shost->host_lock);
1592 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1593 }
de0c5b32
JS		 1594}
1595
685f0bf7
JS		 1596static char *
1597lpfc_nlp_state_name(char *buffer, size_t size, int state)
1598{
1599 static char *states[] = {
1600 [NLP_STE_UNUSED_NODE] = "UNUSED",
1601 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
1602 [NLP_STE_ADISC_ISSUE] = "ADISC",
1603 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
1604 [NLP_STE_PRLI_ISSUE] = "PRLI",
1605 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
1606 [NLP_STE_MAPPED_NODE] = "MAPPED",
1607 [NLP_STE_NPR_NODE] = "NPR",
1608 };
1609
1610 if (state < ARRAY_SIZE(states) && states[state])
1611 strlcpy(buffer, states[state], size);
1612 else
1613 snprintf(buffer, size, "unknown (%d)", state);
1614 return buffer;
1615}
1616
de0c5b32 1617void
2e0fef85
JS		 1618lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1619 int state)
de0c5b32 1620{
2e0fef85 1621 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
de0c5b32 1622 int old_state = ndlp->nlp_state;
685f0bf7 1623 char name1[16], name2[16];
de0c5b32 1624
2e0fef85 1625 lpfc_printf_log(vport->phba, KERN_INFO, LOG_NODE,
858c9f6c
JS		 1626 "%d (%d):0904 NPort state transition x%06x, %s -> %s\n",
1627 vport->phba->brd_no, vport->vpi,
685f0bf7
JS		 1628 ndlp->nlp_DID,
1629 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
1630 lpfc_nlp_state_name(name2, sizeof(name2), state));
858c9f6c
JS		 1631
1632 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
1633 "node statechg did:x%x old:%d ste:%d",
1634 ndlp->nlp_DID, old_state, state);
1635
de0c5b32
JS		 1636 if (old_state == NLP_STE_NPR_NODE &&
1637 (ndlp->nlp_flag & NLP_DELAY_TMO) != 0 &&
1638 state != NLP_STE_NPR_NODE)
2e0fef85 1639 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32
JS		 1640 if (old_state == NLP_STE_UNMAPPED_NODE) {
1641 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1642 ndlp->nlp_type &= ~NLP_FC_NODE;
1643 }
1644
685f0bf7 1645 if (list_empty(&ndlp->nlp_listp)) {
2e0fef85
JS		 1646 spin_lock_irq(shost->host_lock);
1647 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
1648 spin_unlock_irq(shost->host_lock);
685f0bf7 1649 } else if (old_state)
2e0fef85 1650 lpfc_nlp_counters(vport, old_state, -1);
de0c5b32
JS		 1651
1652 ndlp->nlp_state = state;
2e0fef85
JS		 1653 lpfc_nlp_counters(vport, state, 1);
1654 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
de0c5b32
JS		 1655}
1656
1657void
2e0fef85 1658lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 1659{
2e0fef85
JS		 1660 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1661
de0c5b32 1662 if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
2e0fef85 1663 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32 1664 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2e0fef85
JS		 1665 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
1666 spin_lock_irq(shost->host_lock);
685f0bf7 1667 list_del_init(&ndlp->nlp_listp);
2e0fef85 1668 spin_unlock_irq(shost->host_lock);
858c9f6c
JS		 1669 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
1670 NLP_STE_UNUSED_NODE);
de0c5b32
JS		 1671}
1672
1673void
2e0fef85 1674lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 1675{
2e0fef85
JS		 1676 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1677
de0c5b32 1678 if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
2e0fef85 1679 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32 1680 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2e0fef85
JS		 1681 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
1682 spin_lock_irq(shost->host_lock);
685f0bf7 1683 list_del_init(&ndlp->nlp_listp);
858c9f6c 1684 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
2e0fef85 1685 spin_unlock_irq(shost->host_lock);
329f9bc7 1686 lpfc_nlp_put(ndlp);
dea3101e
JB		 1687}
1688
1689/*
1690 * Start / ReStart rescue timer for Discovery / RSCN handling
1691 */
1692void
2e0fef85 1693lpfc_set_disctmo(struct lpfc_vport *vport)
dea3101e 1694{
2e0fef85
JS		 1695 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1696 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1697 uint32_t tmo;
1698
2e0fef85 1699 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
c9f8735b
JW		 1700 /* For FAN, timeout should be greater then edtov */
1701 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1702 } else {
1703 /* Normal discovery timeout should be > then ELS/CT timeout
1704 * FC spec states we need 3 * ratov for CT requests
1705 */
1706 tmo = ((phba->fc_ratov * 3) + 3);
1707 }
dea3101e 1708
858c9f6c
JS		 1709
1710 if (!timer_pending(&vport->fc_disctmo)) {
1711 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1712 "set disc timer: tmo:x%x state:x%x flg:x%x",
1713 tmo, vport->port_state, vport->fc_flag);
1714 }
1715
2e0fef85
JS		 1716 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
1717 spin_lock_irq(shost->host_lock);
1718 vport->fc_flag |= FC_DISC_TMO;
1719 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 1720
1721 /* Start Discovery Timer state <hba_state> */
1722 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
92d7f7b0 1723 "%d (%d):0247 Start Discovery Timer state x%x "
dea3101e 1724 "Data: x%x x%lx x%x x%x\n",
92d7f7b0 1725 phba->brd_no, vport->vpi, vport->port_state, tmo,
2e0fef85
JS		 1726 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
1727 vport->fc_adisc_cnt);
dea3101e
JB		 1728
1729 return;
1730}
1731
1732/*
1733 * Cancel rescue timer for Discovery / RSCN handling
1734 */
1735int
2e0fef85 1736lpfc_can_disctmo(struct lpfc_vport *vport)
dea3101e 1737{
2e0fef85
JS		 1738 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1739 struct lpfc_hba *phba = vport->phba;
1740 unsigned long iflags;
1741
858c9f6c
JS		 1742 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1743 "can disc timer: state:x%x rtry:x%x flg:x%x",
1744 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
1745
dea3101e 1746 /* Turn off discovery timer if its running */
2e0fef85
JS		 1747 if (vport->fc_flag & FC_DISC_TMO) {
1748 spin_lock_irqsave(shost->host_lock, iflags);
1749 vport->fc_flag &= ~FC_DISC_TMO;
1750 spin_unlock_irqrestore(shost->host_lock, iflags);
1751 del_timer_sync(&vport->fc_disctmo);
1752 spin_lock_irqsave(&vport->work_port_lock, iflags);
1753 vport->work_port_events &= ~WORKER_DISC_TMO;
1754 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
dea3101e
JB		 1755 }
1756
1757 /* Cancel Discovery Timer state <hba_state> */
1758 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
92d7f7b0 1759 "%d (%d):0248 Cancel Discovery Timer state x%x "
dea3101e 1760 "Data: x%x x%x x%x\n",
92d7f7b0
JS		 1761 phba->brd_no, vport->vpi, vport->port_state,
1762 vport->fc_flag, vport->fc_plogi_cnt,
1763 vport->fc_adisc_cnt);
dea3101e 1764
2fe165b6 1765 return 0;
dea3101e
JB		 1766}
1767
1768/*
1769 * Check specified ring for outstanding IOCB on the SLI queue
1770 * Return true if iocb matches the specified nport
1771 */
1772int
2e0fef85
JS		 1773lpfc_check_sli_ndlp(struct lpfc_hba *phba,
1774 struct lpfc_sli_ring *pring,
1775 struct lpfc_iocbq *iocb,
1776 struct lpfc_nodelist *ndlp)
dea3101e 1777{
2e0fef85
JS		 1778 struct lpfc_sli *psli = &phba->sli;
1779 IOCB_t *icmd = &iocb->iocb;
92d7f7b0
JS		 1780 struct lpfc_vport *vport = ndlp->vport;
1781
1782 if (iocb->vport != vport)
1783 return 0;
1784
dea3101e
JB		 1785 if (pring->ringno == LPFC_ELS_RING) {
1786 switch (icmd->ulpCommand) {
1787 case CMD_GEN_REQUEST64_CR:
1788 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
2fe165b6 1789 return 1;
dea3101e 1790 case CMD_ELS_REQUEST64_CR:
10d4e957
JS		 1791 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1792 return 1;
dea3101e
JB		 1793 case CMD_XMIT_ELS_RSP64_CX:
1794 if (iocb->context1 == (uint8_t *) ndlp)
2fe165b6 1795 return 1;
dea3101e 1796 }
a4bc3379 1797 } else if (pring->ringno == psli->extra_ring) {
dea3101e
JB		 1798
1799 } else if (pring->ringno == psli->fcp_ring) {
1800 /* Skip match check if waiting to relogin to FCP target */
1801 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
92d7f7b0 1802 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
2fe165b6 1803 return 0;
dea3101e
JB		 1804 }
1805 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
2fe165b6 1806 return 1;
dea3101e
JB		 1807 }
1808 } else if (pring->ringno == psli->next_ring) {
1809
1810 }
2fe165b6 1811 return 0;
dea3101e
JB		 1812}
1813
1814/*
1815 * Free resources / clean up outstanding I/Os
1816 * associated with nlp_rpi in the LPFC_NODELIST entry.
1817 */
1818static int
2e0fef85 1819lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 1820{
2534ba75 1821 LIST_HEAD(completions);
dea3101e
JB		 1822 struct lpfc_sli *psli;
1823 struct lpfc_sli_ring *pring;
1824 struct lpfc_iocbq *iocb, *next_iocb;
1825 IOCB_t *icmd;
1826 uint32_t rpi, i;
1827
92d7f7b0
JS		 1828 lpfc_fabric_abort_nport(ndlp);
1829
dea3101e
JB		 1830 /*
1831 * Everything that matches on txcmplq will be returned
1832 * by firmware with a no rpi error.
1833 */
1834 psli = &phba->sli;
1835 rpi = ndlp->nlp_rpi;
1836 if (rpi) {
1837 /* Now process each ring */
1838 for (i = 0; i < psli->num_rings; i++) {
1839 pring = &psli->ring[i];
1840
2e0fef85 1841 spin_lock_irq(&phba->hbalock);
dea3101e 1842 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
2e0fef85 1843 list) {
dea3101e
JB		 1844 /*
1845 * Check to see if iocb matches the nport we are
1846 * looking for
1847 */
92d7f7b0
JS		 1848 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
1849 ndlp))) {
dea3101e
JB		 1850 /* It matches, so deque and call compl
1851 with an error */
2534ba75
JS		 1852 list_move_tail(&iocb->list,
1853 &completions);
dea3101e 1854 pring->txq_cnt--;
dea3101e
JB		 1855 }
1856 }
2e0fef85 1857 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 1858 }
1859 }
2534ba75
JS		 1860
1861 while (!list_empty(&completions)) {
1862 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
92d7f7b0 1863 list_del_init(&iocb->list);
2534ba75 1864
2e0fef85
JS		 1865 if (!iocb->iocb_cmpl)
1866 lpfc_sli_release_iocbq(phba, iocb);
1867 else {
2534ba75
JS		 1868 icmd = &iocb->iocb;
1869 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1870 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2e0fef85
JS		 1871 (iocb->iocb_cmpl)(phba, iocb, iocb);
1872 }
2534ba75
JS		 1873 }
1874
2fe165b6 1875 return 0;
dea3101e
JB		 1876}
1877
1878/*
1879 * Free rpi associated with LPFC_NODELIST entry.
1880 * This routine is called from lpfc_freenode(), when we are removing
1881 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1882 * LOGO that completes successfully, and we are waiting to PLOGI back
1883 * to the remote NPort. In addition, it is called after we receive
1884 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1885 * we are waiting to PLOGI back to the remote NPort.
1886 */
1887int
2e0fef85 1888lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1889{
2e0fef85
JS		 1890 struct lpfc_hba *phba = vport->phba;
1891 LPFC_MBOXQ_t *mbox;
dea3101e
JB		 1892 int rc;
1893
1894 if (ndlp->nlp_rpi) {
2e0fef85
JS		 1895 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1896 if (mbox) {
92d7f7b0 1897 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
ed957684 1898 mbox->vport = vport;
92d7f7b0
JS		 1899 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1900 rc = lpfc_sli_issue_mbox(phba, mbox,
1901 (MBX_NOWAIT | MBX_STOP_IOCB));
dea3101e 1902 if (rc == MBX_NOT_FINISHED)
2e0fef85 1903 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 1904 }
dea3101e
JB		 1905 lpfc_no_rpi(phba, ndlp);
1906 ndlp->nlp_rpi = 0;
1907 return 1;
1908 }
1909 return 0;
1910}
1911
92d7f7b0
JS		 1912void
1913lpfc_unreg_all_rpis(struct lpfc_vport *vport)
1914{
1915 struct lpfc_hba *phba = vport->phba;
1916 LPFC_MBOXQ_t *mbox;
1917 int rc;
1918
1919 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1920 if (mbox) {
1921 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
1922 mbox->vport = vport;
1923 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1924 rc = lpfc_sli_issue_mbox(phba, mbox,
1925 (MBX_NOWAIT | MBX_STOP_IOCB));
1926 if (rc == MBX_NOT_FINISHED) {
1927 mempool_free(mbox, phba->mbox_mem_pool);
1928 }
1929 }
1930}
1931
1932void
1933lpfc_unreg_default_rpis(struct lpfc_vport *vport)
1934{
1935 struct lpfc_hba *phba = vport->phba;
1936 LPFC_MBOXQ_t *mbox;
1937 int rc;
1938
1939 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1940 if (mbox) {
1941 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
1942 mbox->vport = vport;
1943 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1944 rc = lpfc_sli_issue_mbox(phba, mbox,
1945 (MBX_NOWAIT | MBX_STOP_IOCB));
1946 if (rc == MBX_NOT_FINISHED) {
1947 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT,
1948 "%d (%d):1815 Could not issue "
1949 "unreg_did (default rpis)\n",
1950 phba->brd_no, vport->vpi);
1951 mempool_free(mbox, phba->mbox_mem_pool);
1952 }
1953 }
1954}
1955
dea3101e
JB		 1956/*
1957 * Free resources associated with LPFC_NODELIST entry
1958 * so it can be freed.
1959 */
1960static int
2e0fef85 1961lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1962{
2e0fef85
JS		 1963 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1964 struct lpfc_hba *phba = vport->phba;
1965 LPFC_MBOXQ_t *mb, *nextmb;
dea3101e 1966 struct lpfc_dmabuf *mp;
dea3101e
JB		 1967
1968 /* Cleanup node for NPort <nlp_DID> */
1969 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
92d7f7b0 1970 "%d (%d):0900 Cleanup node for NPort x%x "
dea3101e 1971 "Data: x%x x%x x%x\n",
92d7f7b0 1972 phba->brd_no, vport->vpi, ndlp->nlp_DID, ndlp->nlp_flag,
dea3101e
JB		 1973 ndlp->nlp_state, ndlp->nlp_rpi);
1974
2e0fef85 1975 lpfc_dequeue_node(vport, ndlp);
dea3101e 1976
dea3101e
JB		 1977 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1978 if ((mb = phba->sli.mbox_active)) {
1979 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1980 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1981 mb->context2 = NULL;
1982 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1983 }
1984 }
33ccf8d1 1985
2e0fef85 1986 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 1987 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1988 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
92d7f7b0 1989 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
dea3101e
JB		 1990 mp = (struct lpfc_dmabuf *) (mb->context1);
1991 if (mp) {
2e0fef85 1992 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e
JB		 1993 kfree(mp);
1994 }
1995 list_del(&mb->list);
1996 mempool_free(mb, phba->mbox_mem_pool);
329f9bc7 1997 lpfc_nlp_put(ndlp);
dea3101e
JB		 1998 }
1999 }
2e0fef85 2000 spin_unlock_irq(&phba->hbalock);
dea3101e 2001
07951076 2002 lpfc_els_abort(phba,ndlp);
2e0fef85 2003 spin_lock_irq(shost->host_lock);
c01f3208 2004 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
2e0fef85 2005 spin_unlock_irq(shost->host_lock);
dea3101e 2006
5024ab17 2007 ndlp->nlp_last_elscmd = 0;
dea3101e
JB		 2008 del_timer_sync(&ndlp->nlp_delayfunc);
2009
dea3101e
JB		 2010 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
2011 list_del_init(&ndlp->els_retry_evt.evt_listp);
92d7f7b0
JS		 2012 if (!list_empty(&ndlp->dev_loss_evt.evt_listp))
2013 list_del_init(&ndlp->dev_loss_evt.evt_listp);
dea3101e 2014
858c9f6c
JS		 2015 if (!list_empty(&ndlp->dev_loss_evt.evt_listp)) {
2016 list_del_init(&ndlp->dev_loss_evt.evt_listp);
2017 complete((struct completion *)(ndlp->dev_loss_evt.evt_arg2));
2018 }
2019
2e0fef85 2020 lpfc_unreg_rpi(vport, ndlp);
dea3101e 2021
2fe165b6 2022 return 0;
dea3101e
JB		 2023}
2024
2025/*
2026 * Check to see if we can free the nlp back to the freelist.
2027 * If we are in the middle of using the nlp in the discovery state
2028 * machine, defer the free till we reach the end of the state machine.
2029 */
329f9bc7 2030static void
2e0fef85 2031lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 2032{
1dcb58e5 2033 struct lpfc_rport_data *rdata;
dea3101e
JB		 2034
2035 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
2e0fef85 2036 lpfc_cancel_retry_delay_tmo(vport, ndlp);
dea3101e
JB		 2037 }
2038
2e0fef85 2039 lpfc_cleanup_node(vport, ndlp);
1dcb58e5 2040
2e0fef85 2041 /*
92d7f7b0
JS		 2042 * We can get here with a non-NULL ndlp->rport because when we
2043 * unregister a rport we don't break the rport/node linkage. So if we
2044 * do, make sure we don't leaving any dangling pointers behind.
2e0fef85 2045 */
92d7f7b0 2046 if (ndlp->rport) {
329f9bc7
JS		 2047 rdata = ndlp->rport->dd_data;
2048 rdata->pnode = NULL;
2049 ndlp->rport = NULL;
dea3101e 2050 }
dea3101e
JB		 2051}
2052
2053static int
2e0fef85
JS		 2054lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2055 uint32_t did)
dea3101e 2056{
2e0fef85 2057 D_ID mydid, ndlpdid, matchdid;
dea3101e
JB		 2058
2059 if (did == Bcast_DID)
2fe165b6 2060 return 0;
dea3101e
JB		 2061
2062 if (ndlp->nlp_DID == 0) {
2fe165b6 2063 return 0;
dea3101e
JB		 2064 }
2065
2066 /* First check for Direct match */
2067 if (ndlp->nlp_DID == did)
2fe165b6 2068 return 1;
dea3101e
JB		 2069
2070 /* Next check for area/domain identically equals 0 match */
2e0fef85 2071 mydid.un.word = vport->fc_myDID;
dea3101e 2072 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2fe165b6 2073 return 0;
dea3101e
JB		 2074 }
2075
2076 matchdid.un.word = did;
2077 ndlpdid.un.word = ndlp->nlp_DID;
2078 if (matchdid.un.b.id == ndlpdid.un.b.id) {
2079 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
2080 (mydid.un.b.area == matchdid.un.b.area)) {
2081 if ((ndlpdid.un.b.domain == 0) &&
2082 (ndlpdid.un.b.area == 0)) {
2083 if (ndlpdid.un.b.id)
2fe165b6 2084 return 1;
dea3101e 2085 }
2fe165b6 2086 return 0;
dea3101e
JB		 2087 }
2088
2089 matchdid.un.word = ndlp->nlp_DID;
2090 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
2091 (mydid.un.b.area == ndlpdid.un.b.area)) {
2092 if ((matchdid.un.b.domain == 0) &&
2093 (matchdid.un.b.area == 0)) {
2094 if (matchdid.un.b.id)
2fe165b6 2095 return 1;
dea3101e
JB		 2096 }
2097 }
2098 }
2fe165b6 2099 return 0;
dea3101e
JB		 2100}
2101
685f0bf7 2102/* Search for a nodelist entry */
2e0fef85
JS		 2103static struct lpfc_nodelist *
2104__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
dea3101e 2105{
2e0fef85 2106 struct lpfc_hba *phba = vport->phba;
2fb9bd8b 2107 struct lpfc_nodelist *ndlp;
dea3101e
JB		 2108 uint32_t data1;
2109
2e0fef85
JS		 2110 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2111 if (lpfc_matchdid(vport, ndlp, did)) {
685f0bf7
JS		 2112 data1 = (((uint32_t) ndlp->nlp_state << 24) |
2113 ((uint32_t) ndlp->nlp_xri << 16) |
2114 ((uint32_t) ndlp->nlp_type << 8) |
2115 ((uint32_t) ndlp->nlp_rpi & 0xff));
2116 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
92d7f7b0 2117 "%d (%d):0929 FIND node DID "
685f0bf7 2118 " Data: x%p x%x x%x x%x\n",
92d7f7b0 2119 phba->brd_no, vport->vpi,
685f0bf7
JS		 2120 ndlp, ndlp->nlp_DID,
2121 ndlp->nlp_flag, data1);
685f0bf7 2122 return ndlp;
dea3101e
JB		 2123 }
2124 }
66a9ed66 2125
dea3101e 2126 /* FIND node did <did> NOT FOUND */
2fb9bd8b 2127 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
92d7f7b0
JS		 2128 "%d (%d):0932 FIND node did x%x NOT FOUND.\n",
2129 phba->brd_no, vport->vpi, did);
dea3101e
JB		 2130 return NULL;
2131}
2132
2133struct lpfc_nodelist *
2e0fef85
JS		 2134lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
2135{
2136 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2137 struct lpfc_nodelist *ndlp;
2138
2139 spin_lock_irq(shost->host_lock);
2140 ndlp = __lpfc_findnode_did(vport, did);
2141 spin_unlock_irq(shost->host_lock);
2142 return ndlp;
2143}
2144
2145struct lpfc_nodelist *
2146lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
dea3101e 2147{
2e0fef85 2148 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 2149 struct lpfc_nodelist *ndlp;
dea3101e 2150
2e0fef85 2151 ndlp = lpfc_findnode_did(vport, did);
c9f8735b 2152 if (!ndlp) {
2e0fef85
JS		 2153 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
2154 lpfc_rscn_payload_check(vport, did) == 0)
dea3101e
JB		 2155 return NULL;
2156 ndlp = (struct lpfc_nodelist *)
2e0fef85 2157 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
dea3101e
JB		 2158 if (!ndlp)
2159 return NULL;
2e0fef85
JS		 2160 lpfc_nlp_init(vport, ndlp, did);
2161 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2162 spin_lock_irq(shost->host_lock);
dea3101e 2163 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2164 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 2165 return ndlp;
2166 }
2e0fef85
JS		 2167 if (vport->fc_flag & FC_RSCN_MODE) {
2168 if (lpfc_rscn_payload_check(vport, did)) {
2169 spin_lock_irq(shost->host_lock);
dea3101e 2170 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2171 spin_unlock_irq(shost->host_lock);
c9f8735b
JW		 2172
2173 /* Since this node is marked for discovery,
2174 * delay timeout is not needed.
2175 */
fdcebe28 2176 if (ndlp->nlp_flag & NLP_DELAY_TMO)
2e0fef85 2177 lpfc_cancel_retry_delay_tmo(vport, ndlp);
071fbd3d 2178 } else
dea3101e 2179 ndlp = NULL;
2fe165b6 2180 } else {
685f0bf7
JS		 2181 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
2182 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE)
dea3101e 2183 return NULL;
2e0fef85
JS		 2184 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2185 spin_lock_irq(shost->host_lock);
dea3101e 2186 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2187 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 2188 }
2189 return ndlp;
2190}
2191
2192/* Build a list of nodes to discover based on the loopmap */
2193void
2e0fef85 2194lpfc_disc_list_loopmap(struct lpfc_vport *vport)
dea3101e 2195{
2e0fef85 2196 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 2197 int j;
2198 uint32_t alpa, index;
2199
2e0fef85 2200 if (!lpfc_is_link_up(phba))
dea3101e 2201 return;
2e0fef85
JS		 2202
2203 if (phba->fc_topology != TOPOLOGY_LOOP)
dea3101e 2204 return;
dea3101e
JB		 2205
2206 /* Check for loop map present or not */
2207 if (phba->alpa_map[0]) {
2208 for (j = 1; j <= phba->alpa_map[0]; j++) {
2209 alpa = phba->alpa_map[j];
2e0fef85 2210 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
dea3101e 2211 continue;
2e0fef85 2212 lpfc_setup_disc_node(vport, alpa);
dea3101e
JB		 2213 }
2214 } else {
2215 /* No alpamap, so try all alpa's */
2216 for (j = 0; j < FC_MAXLOOP; j++) {
2217 /* If cfg_scan_down is set, start from highest
2218 * ALPA (0xef) to lowest (0x1).
2219 */
2220 if (phba->cfg_scan_down)
2221 index = j;
2222 else
2223 index = FC_MAXLOOP - j - 1;
2224 alpa = lpfcAlpaArray[index];
2e0fef85 2225 if ((vport->fc_myDID & 0xff) == alpa)
dea3101e 2226 continue;
2e0fef85 2227 lpfc_setup_disc_node(vport, alpa);
dea3101e
JB		 2228 }
2229 }
2230 return;
2231}
2232
dea3101e 2233void
2e0fef85 2234lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
dea3101e 2235{
dea3101e 2236 LPFC_MBOXQ_t *mbox;
2e0fef85
JS		 2237 struct lpfc_sli *psli = &phba->sli;
2238 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
2239 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
2240 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
2241 int rc;
2242
92d7f7b0
JS		 2243 /*
2244 * if it's not a physical port or if we already send
2245 * clear_la then don't send it.
2246 */
2247 if ((phba->link_state >= LPFC_CLEAR_LA) ||
2248 (vport->port_type != LPFC_PHYSICAL_PORT))
2249 return;
2250
2e0fef85
JS		 2251 /* Link up discovery */
2252 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
2253 phba->link_state = LPFC_CLEAR_LA;
2254 lpfc_clear_la(phba, mbox);
2255 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2256 mbox->vport = vport;
2257 rc = lpfc_sli_issue_mbox(phba, mbox, (MBX_NOWAIT |
2258 MBX_STOP_IOCB));
2259 if (rc == MBX_NOT_FINISHED) {
2260 mempool_free(mbox, phba->mbox_mem_pool);
2261 lpfc_disc_flush_list(vport);
2262 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2263 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2264 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
92d7f7b0
JS		 2265 phba->link_state = LPFC_HBA_ERROR;
2266 }
2267 }
2268}
2269
2270/* Reg_vpi to tell firmware to resume normal operations */
2271void
2272lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
2273{
2274 LPFC_MBOXQ_t *regvpimbox;
2275
2276 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2277 if (regvpimbox) {
2278 lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, regvpimbox);
2279 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
2280 regvpimbox->vport = vport;
2281 if (lpfc_sli_issue_mbox(phba, regvpimbox,
2282 (MBX_NOWAIT | MBX_STOP_IOCB))
2283 == MBX_NOT_FINISHED) {
2284 mempool_free(regvpimbox, phba->mbox_mem_pool);
2e0fef85
JS		 2285 }
2286 }
2287}
2288
2289/* Start Link up / RSCN discovery on NPR nodes */
2290void
2291lpfc_disc_start(struct lpfc_vport *vport)
2292{
2293 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2294 struct lpfc_hba *phba = vport->phba;
685f0bf7 2295 uint32_t num_sent;
dea3101e 2296 uint32_t clear_la_pending;
685f0bf7 2297 int did_changed;
dea3101e 2298
2e0fef85 2299 if (!lpfc_is_link_up(phba))
dea3101e 2300 return;
2e0fef85
JS		 2301
2302 if (phba->link_state == LPFC_CLEAR_LA)
dea3101e
JB		 2303 clear_la_pending = 1;
2304 else
2305 clear_la_pending = 0;
2306
2e0fef85
JS		 2307 if (vport->port_state < LPFC_VPORT_READY)
2308 vport->port_state = LPFC_DISC_AUTH;
dea3101e 2309
2e0fef85
JS		 2310 lpfc_set_disctmo(vport);
2311
2312 if (vport->fc_prevDID == vport->fc_myDID)
dea3101e 2313 did_changed = 0;
2e0fef85 2314 else
dea3101e 2315 did_changed = 1;
2e0fef85
JS		 2316
2317 vport->fc_prevDID = vport->fc_myDID;
2318 vport->num_disc_nodes = 0;
dea3101e
JB		 2319
2320 /* Start Discovery state <hba_state> */
2321 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
92d7f7b0 2322 "%d (%d):0202 Start Discovery hba state x%x "
dea3101e 2323 "Data: x%x x%x x%x\n",
92d7f7b0
JS		 2324 phba->brd_no, vport->vpi, vport->port_state,
2325 vport->fc_flag, vport->fc_plogi_cnt,
2326 vport->fc_adisc_cnt);
dea3101e
JB		 2327
2328 /* First do ADISCs - if any */
2e0fef85 2329 num_sent = lpfc_els_disc_adisc(vport);
dea3101e
JB		 2330
2331 if (num_sent)
2332 return;
2333
92d7f7b0
JS		 2334 /*
2335 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
2336 * continue discovery.
2337 */
2338 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2339 !(vport->fc_flag & FC_RSCN_MODE)) {
2340 lpfc_issue_reg_vpi(phba, vport);
2341 return;
2342 }
2343
2344 /*
2345 * For SLI2, we need to set port_state to READY and continue
2346 * discovery.
2347 */
2e0fef85 2348 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
dea3101e 2349 /* If we get here, there is nothing to ADISC */
92d7f7b0 2350 if (vport->port_type == LPFC_PHYSICAL_PORT)
2e0fef85 2351 lpfc_issue_clear_la(phba, vport);
2e0fef85 2352
92d7f7b0 2353 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2e0fef85
JS		 2354 vport->num_disc_nodes = 0;
2355 /* go thru NPR nodes and issue ELS PLOGIs */
2356 if (vport->fc_npr_cnt)
2357 lpfc_els_disc_plogi(vport);
2358
2359 if (!vport->num_disc_nodes) {
2360 spin_lock_irq(shost->host_lock);
2361 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2362 spin_unlock_irq(shost->host_lock);
92d7f7b0 2363 lpfc_can_disctmo(vport);
dea3101e
JB		 2364 }
2365 }
92d7f7b0 2366 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 2367 } else {
2368 /* Next do PLOGIs - if any */
2e0fef85 2369 num_sent = lpfc_els_disc_plogi(vport);
dea3101e
JB		 2370
2371 if (num_sent)
2372 return;
2373
2e0fef85 2374 if (vport->fc_flag & FC_RSCN_MODE) {
dea3101e
JB		 2375 /* Check to see if more RSCNs came in while we
2376 * were processing this one.
2377 */
2e0fef85
JS		 2378 if ((vport->fc_rscn_id_cnt == 0) &&
2379 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
2380 spin_lock_irq(shost->host_lock);
2381 vport->fc_flag &= ~FC_RSCN_MODE;
2382 spin_unlock_irq(shost->host_lock);
92d7f7b0 2383 lpfc_can_disctmo(vport);
2fe165b6 2384 } else
2e0fef85 2385 lpfc_els_handle_rscn(vport);
dea3101e
JB		 2386 }
2387 }
2388 return;
2389}
2390
2391/*
2392 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2393 * ring the match the sppecified nodelist.
2394 */
2395static void
2e0fef85 2396lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 2397{
2534ba75 2398 LIST_HEAD(completions);
dea3101e
JB		 2399 struct lpfc_sli *psli;
2400 IOCB_t *icmd;
2401 struct lpfc_iocbq *iocb, *next_iocb;
2402 struct lpfc_sli_ring *pring;
dea3101e
JB		 2403
2404 psli = &phba->sli;
2405 pring = &psli->ring[LPFC_ELS_RING];
2406
2407 /* Error matching iocb on txq or txcmplq
2408 * First check the txq.
2409 */
2e0fef85 2410 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 2411 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2412 if (iocb->context1 != ndlp) {
2413 continue;
2414 }
2415 icmd = &iocb->iocb;
2416 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2417 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2418
2534ba75 2419 list_move_tail(&iocb->list, &completions);
dea3101e 2420 pring->txq_cnt--;
dea3101e
JB		 2421 }
2422 }
2423
2424 /* Next check the txcmplq */
2425 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2426 if (iocb->context1 != ndlp) {
2427 continue;
2428 }
2429 icmd = &iocb->iocb;
2e0fef85
JS		 2430 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
2431 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
2534ba75
JS		 2432 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
2433 }
2434 }
2e0fef85 2435 spin_unlock_irq(&phba->hbalock);
dea3101e 2436
2534ba75
JS		 2437 while (!list_empty(&completions)) {
2438 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
92d7f7b0 2439 list_del_init(&iocb->list);
dea3101e 2440
2e0fef85
JS		 2441 if (!iocb->iocb_cmpl)
2442 lpfc_sli_release_iocbq(phba, iocb);
2443 else {
2534ba75
JS		 2444 icmd = &iocb->iocb;
2445 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2446 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2447 (iocb->iocb_cmpl) (phba, iocb, iocb);
2e0fef85 2448 }
dea3101e 2449 }
dea3101e
JB		 2450}
2451
2452void
2e0fef85 2453lpfc_disc_flush_list(struct lpfc_vport *vport)
dea3101e
JB		 2454{
2455 struct lpfc_nodelist *ndlp, *next_ndlp;
2e0fef85 2456 struct lpfc_hba *phba = vport->phba;
dea3101e 2457
2e0fef85
JS		 2458 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
2459 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7
JS		 2460 nlp_listp) {
2461 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
2462 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
2463 lpfc_free_tx(phba, ndlp);
2464 lpfc_nlp_put(ndlp);
2465 }
dea3101e
JB		 2466 }
2467 }
dea3101e
JB		 2468}
2469
92d7f7b0
JS		 2470void
2471lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
2472{
2473 lpfc_els_flush_rscn(vport);
2474 lpfc_els_flush_cmd(vport);
2475 lpfc_disc_flush_list(vport);
2476}
2477
dea3101e
JB		 2478/*****************************************************************************/
2479/*
2480 * NAME: lpfc_disc_timeout
2481 *
2482 * FUNCTION: Fibre Channel driver discovery timeout routine.
2483 *
2484 * EXECUTION ENVIRONMENT: interrupt only
2485 *
2486 * CALLED FROM:
2487 * Timer function
2488 *
2489 * RETURNS:
2490 * none
2491 */
2492/*****************************************************************************/
2493void
2494lpfc_disc_timeout(unsigned long ptr)
2495{
2e0fef85
JS		 2496 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
2497 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 2498 unsigned long flags = 0;
2499
2500 if (unlikely(!phba))
2501 return;
2502
2e0fef85
JS		 2503 if ((vport->work_port_events & WORKER_DISC_TMO) == 0) {
2504 spin_lock_irqsave(&vport->work_port_lock, flags);
2505 vport->work_port_events |= WORKER_DISC_TMO;
2506 spin_unlock_irqrestore(&vport->work_port_lock, flags);
2507
92d7f7b0 2508 spin_lock_irqsave(&phba->hbalock, flags);
dea3101e 2509 if (phba->work_wait)
92d7f7b0
JS		 2510 lpfc_worker_wake_up(phba);
2511 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e 2512 }
dea3101e
JB		 2513 return;
2514}
2515
2516static void
2e0fef85 2517lpfc_disc_timeout_handler(struct lpfc_vport *vport)
dea3101e 2518{
2e0fef85
JS		 2519 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2520 struct lpfc_hba *phba = vport->phba;
2521 struct lpfc_sli *psli = &phba->sli;
c9f8735b 2522 struct lpfc_nodelist *ndlp, *next_ndlp;
92d7f7b0 2523 LPFC_MBOXQ_t *initlinkmbox;
dea3101e
JB		 2524 int rc, clrlaerr = 0;
2525
2e0fef85 2526 if (!(vport->fc_flag & FC_DISC_TMO))
dea3101e
JB		 2527 return;
2528
2e0fef85
JS		 2529 spin_lock_irq(shost->host_lock);
2530 vport->fc_flag &= ~FC_DISC_TMO;
2531 spin_unlock_irq(shost->host_lock);
dea3101e 2532
858c9f6c
JS		 2533 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2534 "disc timeout: state:x%x rtry:x%x flg:x%x",
2535 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
2536
2e0fef85 2537 switch (vport->port_state) {
dea3101e
JB		 2538
2539 case LPFC_LOCAL_CFG_LINK:
2e0fef85
JS		 2540 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
2541 * FAN
2542 */
2543 /* FAN timeout */
ed957684 2544 lpfc_printf_log(phba, KERN_WARNING, LOG_DISCOVERY,
92d7f7b0
JS		 2545 "%d (%d):0221 FAN timeout\n",
2546 phba->brd_no, vport->vpi);
dea3101e 2547
c9f8735b 2548 /* Start discovery by sending FLOGI, clean up old rpis */
2e0fef85 2549 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7
JS		 2550 nlp_listp) {
2551 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
2552 continue;
c9f8735b
JW		 2553 if (ndlp->nlp_type & NLP_FABRIC) {
2554 /* Clean up the ndlp on Fabric connections */
2e0fef85 2555 lpfc_drop_node(vport, ndlp);
2fe165b6 2556 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
c9f8735b
JW		 2557 /* Fail outstanding IO now since device
2558 * is marked for PLOGI.
2559 */
2e0fef85 2560 lpfc_unreg_rpi(vport, ndlp);
c9f8735b
JW		 2561 }
2562 }
92d7f7b0
JS		 2563 if (vport->port_state != LPFC_FLOGI) {
2564 vport->port_state = LPFC_FLOGI;
2565 lpfc_set_disctmo(vport);
2566 lpfc_initial_flogi(vport);
2567 }
dea3101e
JB		 2568 break;
2569
92d7f7b0 2570 case LPFC_FDISC:
dea3101e 2571 case LPFC_FLOGI:
2e0fef85 2572 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
dea3101e 2573 /* Initial FLOGI timeout */
ed957684 2574 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
92d7f7b0
JS		 2575 "%d (%d):0222 Initial %s timeout\n",
2576 phba->brd_no, vport->vpi,
2577 vport->vpi ? "FLOGI" : "FDISC");
dea3101e
JB		 2578
2579 /* Assume no Fabric and go on with discovery.
2580 * Check for outstanding ELS FLOGI to abort.
2581 */
2582
2583 /* FLOGI failed, so just use loop map to make discovery list */
2e0fef85 2584 lpfc_disc_list_loopmap(vport);
dea3101e
JB		 2585
2586 /* Start discovery */
2e0fef85 2587 lpfc_disc_start(vport);
dea3101e
JB		 2588 break;
2589
2590 case LPFC_FABRIC_CFG_LINK:
2591 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2592 NameServer login */
2593 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
92d7f7b0
JS		 2594 "%d (%d):0223 Timeout while waiting for "
2595 "NameServer login\n",
2596 phba->brd_no, vport->vpi);
dea3101e
JB		 2597
2598 /* Next look for NameServer ndlp */
2e0fef85 2599 ndlp = lpfc_findnode_did(vport, NameServer_DID);
dea3101e 2600 if (ndlp)
329f9bc7 2601 lpfc_nlp_put(ndlp);
dea3101e 2602 /* Start discovery */
2e0fef85 2603 lpfc_disc_start(vport);
dea3101e
JB		 2604 break;
2605
2606 case LPFC_NS_QRY:
2607 /* Check for wait for NameServer Rsp timeout */
2608 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
92d7f7b0 2609 "%d (%d):0224 NameServer Query timeout "
dea3101e 2610 "Data: x%x x%x\n",
92d7f7b0 2611 phba->brd_no, vport->vpi,
2e0fef85 2612 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e 2613
92d7f7b0
JS		 2614 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2615 /* Try it one more time */
2616 vport->fc_ns_retry++;
2617 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
2618 vport->fc_ns_retry, 0);
2619 if (rc == 0)
2620 break;
dea3101e 2621 }
92d7f7b0 2622 vport->fc_ns_retry = 0;
dea3101e 2623
92d7f7b0
JS		 2624 /*
2625 * Discovery is over.
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
2636 /* Setup and issue mailbox INITIALIZE LINK command */
2637 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2638 if (!initlinkmbox) {
2639 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
92d7f7b0 2640 "%d (%d):0206 Device Discovery "
dea3101e 2641 "completion error\n",
92d7f7b0 2642 phba->brd_no, vport->vpi);
2e0fef85 2643 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 2644 break;
2645 }
2646
2647 lpfc_linkdown(phba);
2648 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2649 phba->cfg_link_speed);
2650 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
ed957684 2651 initlinkmbox->vport = vport;
92d7f7b0 2652 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
dea3101e
JB		 2653 rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
2654 (MBX_NOWAIT | MBX_STOP_IOCB));
5b8bd0c9 2655 lpfc_set_loopback_flag(phba);
dea3101e
JB		 2656 if (rc == MBX_NOT_FINISHED)
2657 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2658
2659 break;
2660
2661 case LPFC_DISC_AUTH:
2662 /* Node Authentication timeout */
ed957684 2663 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
92d7f7b0
JS		 2664 "%d (%d):0227 Node Authentication timeout\n",
2665 phba->brd_no, vport->vpi);
2e0fef85
JS		 2666 lpfc_disc_flush_list(vport);
2667
92d7f7b0
JS		 2668 /*
2669 * set port_state to PORT_READY if SLI2.
2670 * cmpl_reg_vpi will set port_state to READY for SLI3.
2671 */
2672 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2673 lpfc_issue_reg_vpi(phba, vport);
2674 else { /* NPIV Not enabled */
2675 lpfc_issue_clear_la(phba, vport);
2676 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 2677 }
2678 break;
2679
2e0fef85
JS		 2680 case LPFC_VPORT_READY:
2681 if (vport->fc_flag & FC_RSCN_MODE) {
ed957684 2682 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
92d7f7b0
JS		 2683 "%d (%d):0231 RSCN timeout Data: x%x "
2684 "x%x\n",
2685 phba->brd_no, vport->vpi,
2e0fef85 2686 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e
JB		 2687
2688 /* Cleanup any outstanding ELS commands */
2e0fef85 2689 lpfc_els_flush_cmd(vport);
dea3101e 2690
2e0fef85
JS		 2691 lpfc_els_flush_rscn(vport);
2692 lpfc_disc_flush_list(vport);
dea3101e
JB		 2693 }
2694 break;
2e0fef85 2695
92d7f7b0 2696 default:
ed957684 2697 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
92d7f7b0
JS		 2698 "%d (%d):0229 Unexpected discovery timeout, "
2699 "vport State x%x\n",
2700 phba->brd_no, vport->vpi, vport->port_state);
2e0fef85
JS		 2701
2702 break;
2703 }
2704
2705 switch (phba->link_state) {
2706 case LPFC_CLEAR_LA:
92d7f7b0 2707 /* CLEAR LA timeout */
ed957684 2708 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
92d7f7b0
JS		 2709 "%d (%d):0228 CLEAR LA timeout\n",
2710 phba->brd_no, vport->vpi);
2e0fef85
JS		 2711 clrlaerr = 1;
2712 break;
2713
2714 case LPFC_LINK_UNKNOWN:
2715 case LPFC_WARM_START:
2716 case LPFC_INIT_START:
2717 case LPFC_INIT_MBX_CMDS:
2718 case LPFC_LINK_DOWN:
2719 case LPFC_LINK_UP:
2720 case LPFC_HBA_ERROR:
ed957684 2721 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
92d7f7b0 2722 "%d (%d):0230 Unexpected timeout, hba link "
2e0fef85 2723 "state x%x\n",
92d7f7b0 2724 phba->brd_no, vport->vpi, phba->link_state);
2e0fef85
JS		 2725 clrlaerr = 1;
2726 break;
92d7f7b0
JS		 2727
2728 case LPFC_HBA_READY:
2729 break;
dea3101e
JB		 2730 }
2731
2732 if (clrlaerr) {
2e0fef85 2733 lpfc_disc_flush_list(vport);
a4bc3379 2734 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e
JB		 2735 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2736 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2e0fef85 2737 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 2738 }
2739
2740 return;
2741}
2742
dea3101e
JB		 2743/*
2744 * This routine handles processing a NameServer REG_LOGIN mailbox
2745 * command upon completion. It is setup in the LPFC_MBOXQ
2746 * as the completion routine when the command is
2747 * handed off to the SLI layer.
2748 */
2749void
2e0fef85 2750lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 2751{
2e0fef85
JS		 2752 MAILBOX_t *mb = &pmb->mb;
2753 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2754 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2755 struct lpfc_vport *vport = pmb->vport;
dea3101e
JB		 2756
2757 pmb->context1 = NULL;
2758
dea3101e 2759 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 2760 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 2761 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 2762
2e0fef85
JS		 2763 /*
2764 * Start issuing Fabric-Device Management Interface (FDMI) command to
2765 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
2766 * fdmi-on=2 (supporting RPA/hostnmae)
dea3101e 2767 */
2e0fef85
JS		 2768
2769 if (phba->cfg_fdmi_on == 1)
2770 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
2771 else
2772 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
dea3101e 2773
329f9bc7
JS		 2774 /* Mailbox took a reference to the node */
2775 lpfc_nlp_put(ndlp);
dea3101e
JB		 2776 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2777 kfree(mp);
329f9bc7 2778 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 2779
2780 return;
2781}
2782
685f0bf7
JS		 2783static int
2784lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
2785{
2786 uint16_t *rpi = param;
2787
2788 return ndlp->nlp_rpi == *rpi;
2789}
2790
2791static int
2792lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
2793{
2794 return memcmp(&ndlp->nlp_portname, param,
2795 sizeof(ndlp->nlp_portname)) == 0;
2796}
2797
dea3101e 2798struct lpfc_nodelist *
2e0fef85 2799__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
dea3101e 2800{
21568f53 2801 struct lpfc_nodelist *ndlp;
dea3101e 2802
2e0fef85 2803 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
685f0bf7
JS		 2804 if (ndlp->nlp_state != NLP_STE_UNUSED_NODE &&
2805 filter(ndlp, param))
2806 return ndlp;
2807 }
21568f53 2808 return NULL;
dea3101e
JB		 2809}
2810
685f0bf7
JS		 2811/*
2812 * Search node lists for a remote port matching filter criteria
92d7f7b0 2813 * Caller needs to hold host_lock before calling this routine.
685f0bf7
JS		 2814 */
2815struct lpfc_nodelist *
2e0fef85 2816lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
685f0bf7 2817{
2e0fef85 2818 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
685f0bf7
JS		 2819 struct lpfc_nodelist *ndlp;
2820
2e0fef85
JS		 2821 spin_lock_irq(shost->host_lock);
2822 ndlp = __lpfc_find_node(vport, filter, param);
2823 spin_unlock_irq(shost->host_lock);
685f0bf7
JS		 2824 return ndlp;
2825}
2826
2827/*
2828 * This routine looks up the ndlp lists for the given RPI. If rpi found it
2e0fef85 2829 * returns the node list element pointer else return NULL.
685f0bf7
JS		 2830 */
2831struct lpfc_nodelist *
2e0fef85 2832__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
685f0bf7 2833{
2e0fef85 2834 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
685f0bf7
JS		 2835}
2836
2534ba75 2837struct lpfc_nodelist *
2e0fef85 2838lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
2534ba75 2839{
2e0fef85 2840 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2534ba75
JS		 2841 struct lpfc_nodelist *ndlp;
2842
2e0fef85
JS		 2843 spin_lock_irq(shost->host_lock);
2844 ndlp = __lpfc_findnode_rpi(vport, rpi);
2845 spin_unlock_irq(shost->host_lock);
2534ba75
JS		 2846 return ndlp;
2847}
2848
488d1469 2849/*
685f0bf7 2850 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
2e0fef85 2851 * returns the node element list pointer else return NULL.
488d1469
JS		 2852 */
2853struct lpfc_nodelist *
2e0fef85 2854lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
488d1469 2855{
2e0fef85 2856 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
488d1469 2857 struct lpfc_nodelist *ndlp;
488d1469 2858
2e0fef85
JS		 2859 spin_lock_irq(shost->host_lock);
2860 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
2861 spin_unlock_irq(shost->host_lock);
858c9f6c 2862 return ndlp;
488d1469
JS		 2863}
2864
92d7f7b0
JS		 2865void
2866lpfc_dev_loss_delay(unsigned long ptr)
2867{
2868 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
2869 struct lpfc_vport *vport = ndlp->vport;
2870 struct lpfc_hba *phba = vport->phba;
2871 struct lpfc_work_evt *evtp = &ndlp->dev_loss_evt;
2872 unsigned long flags;
2873
2874 evtp = &ndlp->dev_loss_evt;
2875
2876 spin_lock_irqsave(&phba->hbalock, flags);
2877 if (!list_empty(&evtp->evt_listp)) {
2878 spin_unlock_irqrestore(&phba->hbalock, flags);
2879 return;
2880 }
2881
2882 evtp->evt_arg1 = ndlp;
858c9f6c 2883 evtp->evt = LPFC_EVT_DEV_LOSS_DELAY;
92d7f7b0
JS		 2884 list_add_tail(&evtp->evt_listp, &phba->work_list);
2885 if (phba->work_wait)
2886 lpfc_worker_wake_up(phba);
2887 spin_unlock_irqrestore(&phba->hbalock, flags);
2888 return;
2889}
2890
dea3101e 2891void
2e0fef85
JS		 2892lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2893 uint32_t did)
dea3101e
JB		 2894{
2895 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
dea3101e 2896 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
92d7f7b0 2897 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
dea3101e
JB		 2898 init_timer(&ndlp->nlp_delayfunc);
2899 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2900 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2901 ndlp->nlp_DID = did;
2e0fef85 2902 ndlp->vport = vport;
dea3101e 2903 ndlp->nlp_sid = NLP_NO_SID;
685f0bf7 2904 INIT_LIST_HEAD(&ndlp->nlp_listp);
329f9bc7 2905 kref_init(&ndlp->kref);
858c9f6c
JS		 2906
2907 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2908 "node init: did:x%x",
2909 ndlp->nlp_DID, 0, 0);
2910
dea3101e
JB		 2911 return;
2912}
329f9bc7
JS		 2913
2914void
2915lpfc_nlp_release(struct kref *kref)
2916{
2917 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
2918 kref);
858c9f6c
JS		 2919
2920 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
2921 "node release: did:x%x flg:x%x type:x%x",
2922 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
2923
2e0fef85
JS		 2924 lpfc_nlp_remove(ndlp->vport, ndlp);
2925 mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool);
329f9bc7
JS		 2926}
2927
2928struct lpfc_nodelist *
2929lpfc_nlp_get(struct lpfc_nodelist *ndlp)
2930{
2931 if (ndlp)
2932 kref_get(&ndlp->kref);
2933 return ndlp;
2934}
2935
2936int
2937lpfc_nlp_put(struct lpfc_nodelist *ndlp)
2938{
2939 return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0;
2940}
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