projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
[SCSI] lpfc 8.2.7 : Discovery Fixes
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
CommitLineData
dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
e47c9093 4 * Copyright (C) 2004-2008 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
23#include <linux/pci.h>
24#include <linux/kthread.h>
25#include <linux/interrupt.h>
26
91886523 27#include <scsi/scsi.h>
dea3101e 28#include <scsi/scsi_device.h>
29#include <scsi/scsi_host.h>
30#include <scsi/scsi_transport_fc.h>
31
32#include "lpfc_hw.h"
33#include "lpfc_disc.h"
34#include "lpfc_sli.h"
35#include "lpfc_scsi.h"
36#include "lpfc.h"
37#include "lpfc_logmsg.h"
38#include "lpfc_crtn.h"
92d7f7b0 39#include "lpfc_vport.h"
858c9f6c 40#include "lpfc_debugfs.h"
dea3101e 41
42/* AlpaArray for assignment of scsid for scan-down and bind_method */
43static uint8_t lpfcAlpaArray[] = {
44 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
45 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
46 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
47 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
48 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
49 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
50 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
51 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
52 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
53 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
54 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
55 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
56 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
57};
58
2e0fef85 59static void lpfc_disc_timeout_handler(struct lpfc_vport *);
a6ababd2 60static void lpfc_disc_flush_list(struct lpfc_vport *vport);
dea3101e 61
c01f3208
JS		 62void
63lpfc_terminate_rport_io(struct fc_rport *rport)
dea3101e 64{
c01f3208
JS		 65 struct lpfc_rport_data *rdata;
66 struct lpfc_nodelist * ndlp;
67 struct lpfc_hba *phba;
dea3101e 68
c01f3208
JS		 69 rdata = rport->dd_data;
70 ndlp = rdata->pnode;
71
58da1ffb 72 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
c01f3208
JS		 73 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
74 printk(KERN_ERR "Cannot find remote node"
75 " to terminate I/O Data x%x\n",
76 rport->port_id);
dea3101e 77 return;
78 }
79
2e0fef85 80 phba = ndlp->vport->phba;
c01f3208 81
858c9f6c
JS		 82 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
83 "rport terminate: sid:x%x did:x%x flg:x%x",
84 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
85
c01f3208 86 if (ndlp->nlp_sid != NLP_NO_SID) {
51ef4c26
JS		 87 lpfc_sli_abort_iocb(ndlp->vport,
88 &phba->sli.ring[phba->sli.fcp_ring],
89 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
c01f3208 90 }
c01f3208 91
51ef4c26
JS		 92 /*
93 * A device is normally blocked for rediscovery and unblocked when
94 * devloss timeout happens. In case a vport is removed or driver
95 * unloaded before devloss timeout happens, we need to unblock here.
96 */
97 scsi_target_unblock(&rport->dev);
c01f3208
JS		 98 return;
99}
100
101/*
102 * This function will be called when dev_loss_tmo fire.
103 */
104void
105lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
106{
107 struct lpfc_rport_data *rdata;
108 struct lpfc_nodelist * ndlp;
2e0fef85 109 struct lpfc_vport *vport;
858c9f6c 110 struct lpfc_hba *phba;
858c9f6c 111 struct lpfc_work_evt *evtp;
a8adb832
JS		 112 int put_node;
113 int put_rport;
c01f3208
JS		 114
115 rdata = rport->dd_data;
116 ndlp = rdata->pnode;
58da1ffb 117 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
c01f3208 118 return;
c01f3208 119
858c9f6c
JS		 120 vport = ndlp->vport;
121 phba = vport->phba;
122
123 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
124 "rport devlosscb: sid:x%x did:x%x flg:x%x",
125 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
126
a8adb832
JS		 127 /* Don't defer this if we are in the process of deleting the vport
128 * or unloading the driver. The unload will cleanup the node
129 * appropriately we just need to cleanup the ndlp rport info here.
130 */
131 if (vport->load_flag & FC_UNLOADING) {
132 put_node = rdata->pnode != NULL;
133 put_rport = ndlp->rport != NULL;
134 rdata->pnode = NULL;
135 ndlp->rport = NULL;
136 if (put_node)
137 lpfc_nlp_put(ndlp);
138 if (put_rport)
139 put_device(&rport->dev);
140 return;
141 }
142
143 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
144 return;
145
858c9f6c
JS		 146 evtp = &ndlp->dev_loss_evt;
147
148 if (!list_empty(&evtp->evt_listp))
149 return;
150
151 spin_lock_irq(&phba->hbalock);
fa4066b6
JS		 152 /* We need to hold the node by incrementing the reference
153 * count until this queued work is done
154 */
155 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
858c9f6c
JS		 156 evtp->evt = LPFC_EVT_DEV_LOSS;
157 list_add_tail(&evtp->evt_listp, &phba->work_list);
158 if (phba->work_wait)
159 wake_up(phba->work_wait);
160
161 spin_unlock_irq(&phba->hbalock);
162
858c9f6c
JS		 163 return;
164}
165
166/*
167 * This function is called from the worker thread when dev_loss_tmo
168 * expire.
169 */
a6ababd2 170static void
858c9f6c
JS		 171lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
172{
173 struct lpfc_rport_data *rdata;
174 struct fc_rport *rport;
175 struct lpfc_vport *vport;
176 struct lpfc_hba *phba;
177 uint8_t *name;
87af33fe
JS		 178 int put_node;
179 int put_rport;
858c9f6c
JS		 180 int warn_on = 0;
181
182 rport = ndlp->rport;
183
184 if (!rport)
185 return;
186
187 rdata = rport->dd_data;
188 name = (uint8_t *) &ndlp->nlp_portname;
189 vport = ndlp->vport;
190 phba = vport->phba;
191
192 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
193 "rport devlosstmo:did:x%x type:x%x id:x%x",
194 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
195
a8adb832
JS		 196 /* Don't defer this if we are in the process of deleting the vport
197 * or unloading the driver. The unload will cleanup the node
198 * appropriately we just need to cleanup the ndlp rport info here.
199 */
200 if (vport->load_flag & FC_UNLOADING) {
09372820
JS		 201 if (ndlp->nlp_sid != NLP_NO_SID) {
202 /* flush the target */
203 lpfc_sli_abort_iocb(vport,
204 &phba->sli.ring[phba->sli.fcp_ring],
205 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
206 }
a8adb832
JS		 207 put_node = rdata->pnode != NULL;
208 put_rport = ndlp->rport != NULL;
209 rdata->pnode = NULL;
210 ndlp->rport = NULL;
211 if (put_node)
212 lpfc_nlp_put(ndlp);
213 if (put_rport)
214 put_device(&rport->dev);
215 return;
216 }
217
218 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
858c9f6c
JS		 219 return;
220
92d7f7b0
JS		 221 if (ndlp->nlp_type & NLP_FABRIC) {
222 /* We will clean up these Nodes in linkup */
223 put_node = rdata->pnode != NULL;
224 put_rport = ndlp->rport != NULL;
225 rdata->pnode = NULL;
226 ndlp->rport = NULL;
227 if (put_node)
228 lpfc_nlp_put(ndlp);
229 if (put_rport)
230 put_device(&rport->dev);
82085718 231 return;
92d7f7b0 232 }
82085718 233
dea3101e 234 if (ndlp->nlp_sid != NLP_NO_SID) {
6e8215e4 235 warn_on = 1;
dea3101e 236 /* flush the target */
51ef4c26
JS		 237 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
238 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
dea3101e 239 }
2e0fef85 240 if (vport->load_flag & FC_UNLOADING)
c01f3208
JS		 241 warn_on = 0;
242
6e8215e4 243 if (warn_on) {
e8b62011
JS		 244 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
245 "0203 Devloss timeout on "
58da1ffb
JS		 246 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
247 "NPort x%06x Data: x%x x%x x%x\n",
e8b62011
JS		 248 *name, *(name+1), *(name+2), *(name+3),
249 *(name+4), *(name+5), *(name+6), *(name+7),
250 ndlp->nlp_DID, ndlp->nlp_flag,
251 ndlp->nlp_state, ndlp->nlp_rpi);
6e8215e4 252 } else {
e8b62011
JS		 253 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
254 "0204 Devloss timeout on "
58da1ffb
JS		 255 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
256 "NPort x%06x Data: x%x x%x x%x\n",
e8b62011
JS		 257 *name, *(name+1), *(name+2), *(name+3),
258 *(name+4), *(name+5), *(name+6), *(name+7),
259 ndlp->nlp_DID, ndlp->nlp_flag,
260 ndlp->nlp_state, ndlp->nlp_rpi);
6e8215e4
JSEC		 261 }
262
87af33fe
JS		 263 put_node = rdata->pnode != NULL;
264 put_rport = ndlp->rport != NULL;
265 rdata->pnode = NULL;
266 ndlp->rport = NULL;
267 if (put_node)
268 lpfc_nlp_put(ndlp);
269 if (put_rport)
270 put_device(&rport->dev);
271
2e0fef85 272 if (!(vport->load_flag & FC_UNLOADING) &&
1dcb58e5 273 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
82085718 274 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
e47c9093 275 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE))
2e0fef85 276 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
92d7f7b0 277}
c01f3208 278
92d7f7b0
JS		 279
280void
281lpfc_worker_wake_up(struct lpfc_hba *phba)
282{
283 wake_up(phba->work_wait);
dea3101e 284 return;
285}
286
287static void
2e0fef85 288lpfc_work_list_done(struct lpfc_hba *phba)
dea3101e 289{
290 struct lpfc_work_evt *evtp = NULL;
291 struct lpfc_nodelist *ndlp;
292 int free_evt;
293
2e0fef85
JS		 294 spin_lock_irq(&phba->hbalock);
295 while (!list_empty(&phba->work_list)) {
dea3101e 296 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
297 evt_listp);
2e0fef85 298 spin_unlock_irq(&phba->hbalock);
dea3101e 299 free_evt = 1;
2fe165b6 300 switch (evtp->evt) {
dea3101e 301 case LPFC_EVT_ELS_RETRY:
2e0fef85 302 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
dea3101e 303 lpfc_els_retry_delay_handler(ndlp);
92d7f7b0 304 free_evt = 0; /* evt is part of ndlp */
fa4066b6
JS		 305 /* decrement the node reference count held
306 * for this queued work
307 */
308 lpfc_nlp_put(ndlp);
dea3101e 309 break;
858c9f6c
JS		 310 case LPFC_EVT_DEV_LOSS:
311 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
858c9f6c
JS		 312 lpfc_dev_loss_tmo_handler(ndlp);
313 free_evt = 0;
fa4066b6
JS		 314 /* decrement the node reference count held for
315 * this queued work
316 */
858c9f6c
JS		 317 lpfc_nlp_put(ndlp);
318 break;
dea3101e 319 case LPFC_EVT_ONLINE:
2e0fef85
JS		 320 if (phba->link_state < LPFC_LINK_DOWN)
321 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
41415862 322 else
2e0fef85 323 *(int *) (evtp->evt_arg1) = 0;
dea3101e 324 complete((struct completion *)(evtp->evt_arg2));
325 break;
46fa311e 326 case LPFC_EVT_OFFLINE_PREP:
2e0fef85 327 if (phba->link_state >= LPFC_LINK_DOWN)
46fa311e
JS		 328 lpfc_offline_prep(phba);
329 *(int *)(evtp->evt_arg1) = 0;
330 complete((struct completion *)(evtp->evt_arg2));
331 break;
332 case LPFC_EVT_OFFLINE:
333 lpfc_offline(phba);
41415862
JW		 334 lpfc_sli_brdrestart(phba);
335 *(int *)(evtp->evt_arg1) =
46fa311e
JS		 336 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
337 lpfc_unblock_mgmt_io(phba);
41415862
JW		 338 complete((struct completion *)(evtp->evt_arg2));
339 break;
340 case LPFC_EVT_WARM_START:
46fa311e 341 lpfc_offline(phba);
9290831f 342 lpfc_reset_barrier(phba);
41415862
JW		 343 lpfc_sli_brdreset(phba);
344 lpfc_hba_down_post(phba);
345 *(int *)(evtp->evt_arg1) =
346 lpfc_sli_brdready(phba, HS_MBRDY);
46fa311e 347 lpfc_unblock_mgmt_io(phba);
41415862
JW		 348 complete((struct completion *)(evtp->evt_arg2));
349 break;
350 case LPFC_EVT_KILL:
46fa311e 351 lpfc_offline(phba);
9290831f 352 *(int *)(evtp->evt_arg1)
2e0fef85
JS		 353 = (phba->pport->stopped)
354 ? 0 : lpfc_sli_brdkill(phba);
46fa311e 355 lpfc_unblock_mgmt_io(phba);
dea3101e 356 complete((struct completion *)(evtp->evt_arg2));
357 break;
358 }
359 if (free_evt)
360 kfree(evtp);
2e0fef85 361 spin_lock_irq(&phba->hbalock);
dea3101e 362 }
2e0fef85 363 spin_unlock_irq(&phba->hbalock);
dea3101e 364
365}
366
311464ec 367static void
2e0fef85 368lpfc_work_done(struct lpfc_hba *phba)
dea3101e 369{
370 struct lpfc_sli_ring *pring;
858c9f6c 371 uint32_t ha_copy, status, control, work_port_events;
549e55cd 372 struct lpfc_vport **vports;
51ef4c26 373 struct lpfc_vport *vport;
549e55cd 374 int i;
dea3101e 375
2e0fef85 376 spin_lock_irq(&phba->hbalock);
dea3101e 377 ha_copy = phba->work_ha;
378 phba->work_ha = 0;
2e0fef85 379 spin_unlock_irq(&phba->hbalock);
dea3101e 380
2fe165b6 381 if (ha_copy & HA_ERATT)
dea3101e 382 lpfc_handle_eratt(phba);
383
2fe165b6 384 if (ha_copy & HA_MBATT)
dea3101e 385 lpfc_sli_handle_mb_event(phba);
386
2fe165b6 387 if (ha_copy & HA_LATT)
dea3101e 388 lpfc_handle_latt(phba);
549e55cd
JS		 389 vports = lpfc_create_vport_work_array(phba);
390 if (vports != NULL)
09372820 391 for(i = 0; i <= phba->max_vpi; i++) {
51ef4c26
JS		 392 /*
393 * We could have no vports in array if unloading, so if
394 * this happens then just use the pport
395 */
396 if (vports[i] == NULL && i == 0)
397 vport = phba->pport;
398 else
399 vport = vports[i];
400 if (vport == NULL)
401 break;
58da1ffb 402 spin_lock_irq(&vport->work_port_lock);
51ef4c26 403 work_port_events = vport->work_port_events;
58da1ffb
JS		 404 vport->work_port_events &= ~work_port_events;
405 spin_unlock_irq(&vport->work_port_lock);
549e55cd 406 if (work_port_events & WORKER_DISC_TMO)
51ef4c26 407 lpfc_disc_timeout_handler(vport);
549e55cd 408 if (work_port_events & WORKER_ELS_TMO)
51ef4c26 409 lpfc_els_timeout_handler(vport);
549e55cd
JS		 410 if (work_port_events & WORKER_HB_TMO)
411 lpfc_hb_timeout_handler(phba);
412 if (work_port_events & WORKER_MBOX_TMO)
413 lpfc_mbox_timeout_handler(phba);
414 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
415 lpfc_unblock_fabric_iocbs(phba);
416 if (work_port_events & WORKER_FDMI_TMO)
51ef4c26 417 lpfc_fdmi_timeout_handler(vport);
549e55cd
JS		 418 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
419 lpfc_ramp_down_queue_handler(phba);
420 if (work_port_events & WORKER_RAMP_UP_QUEUE)
421 lpfc_ramp_up_queue_handler(phba);
92d7f7b0 422 }
09372820 423 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 424
858c9f6c
JS		 425 pring = &phba->sli.ring[LPFC_ELS_RING];
426 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
427 status >>= (4*LPFC_ELS_RING);
428 if ((status & HA_RXMASK)
429 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
0b727fea 430 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
858c9f6c
JS		 431 pring->flag |= LPFC_DEFERRED_RING_EVENT;
432 } else {
58da1ffb 433 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
858c9f6c
JS		 434 lpfc_sli_handle_slow_ring_event(phba, pring,
435 (status &
436 HA_RXMASK));
858c9f6c
JS		 437 }
438 /*
439 * Turn on Ring interrupts
440 */
441 spin_lock_irq(&phba->hbalock);
442 control = readl(phba->HCregaddr);
443 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
a58cbd52
JS		 444 lpfc_debugfs_slow_ring_trc(phba,
445 "WRK Enable ring: cntl:x%x hacopy:x%x",
446 control, ha_copy, 0);
447
858c9f6c 448 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
dea3101e 449 writel(control, phba->HCregaddr);
450 readl(phba->HCregaddr); /* flush */
dea3101e 451 }
a58cbd52
JS		 452 else {
453 lpfc_debugfs_slow_ring_trc(phba,
454 "WRK Ring ok: cntl:x%x hacopy:x%x",
455 control, ha_copy, 0);
456 }
858c9f6c 457 spin_unlock_irq(&phba->hbalock);
dea3101e 458 }
2e0fef85 459 lpfc_work_list_done(phba);
dea3101e 460}
461
462static int
2e0fef85
JS		 463check_work_wait_done(struct lpfc_hba *phba)
464{
92d7f7b0 465 struct lpfc_vport *vport;
549e55cd 466 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
858c9f6c 467 int rc = 0;
ed957684 468
2e0fef85 469 spin_lock_irq(&phba->hbalock);
92d7f7b0
JS		 470 list_for_each_entry(vport, &phba->port_list, listentry) {
471 if (vport->work_port_events) {
472 rc = 1;
549e55cd 473 break;
92d7f7b0
JS		 474 }
475 }
549e55cd
JS		 476 if (rc || phba->work_ha || (!list_empty(&phba->work_list)) ||
477 kthread_should_stop() || pring->flag & LPFC_DEFERRED_RING_EVENT) {
858c9f6c 478 rc = 1;
92d7f7b0 479 phba->work_found++;
549e55cd 480 } else
92d7f7b0 481 phba->work_found = 0;
2e0fef85
JS		 482 spin_unlock_irq(&phba->hbalock);
483 return rc;
dea3101e 484}
485
92d7f7b0 486
dea3101e 487int
488lpfc_do_work(void *p)
489{
490 struct lpfc_hba *phba = p;
491 int rc;
7259f0d0 492 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq);
dea3101e 493
494 set_user_nice(current, -20);
495 phba->work_wait = &work_waitq;
92d7f7b0 496 phba->work_found = 0;
dea3101e 497
498 while (1) {
499
500 rc = wait_event_interruptible(work_waitq,
92d7f7b0
JS		 501 check_work_wait_done(phba));
502
dea3101e 503 BUG_ON(rc);
504
505 if (kthread_should_stop())
506 break;
507
508 lpfc_work_done(phba);
509
92d7f7b0
JS		 510 /* If there is alot of slow ring work, like during link up
511 * check_work_wait_done() may cause this thread to not give
512 * up the CPU for very long periods of time. This may cause
513 * soft lockups or other problems. To avoid these situations
514 * give up the CPU here after LPFC_MAX_WORKER_ITERATION
515 * consecutive iterations.
516 */
517 if (phba->work_found >= LPFC_MAX_WORKER_ITERATION) {
518 phba->work_found = 0;
519 schedule();
520 }
dea3101e 521 }
58da1ffb 522 spin_lock_irq(&phba->hbalock);
dea3101e 523 phba->work_wait = NULL;
58da1ffb 524 spin_unlock_irq(&phba->hbalock);
dea3101e 525 return 0;
526}
527
528/*
529 * This is only called to handle FC worker events. Since this a rare
530 * occurance, we allocate a struct lpfc_work_evt structure here instead of
531 * embedding it in the IOCB.
532 */
533int
2e0fef85 534lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
dea3101e 535 uint32_t evt)
536{
537 struct lpfc_work_evt *evtp;
ed957684 538 unsigned long flags;
dea3101e 539
540 /*
541 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
542 * be queued to worker thread for processing
543 */
92d7f7b0 544 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
dea3101e 545 if (!evtp)
546 return 0;
547
548 evtp->evt_arg1 = arg1;
549 evtp->evt_arg2 = arg2;
550 evtp->evt = evt;
551
ed957684 552 spin_lock_irqsave(&phba->hbalock, flags);
071fbd3d 553 list_add_tail(&evtp->evt_listp, &phba->work_list);
dea3101e 554 if (phba->work_wait)
92d7f7b0 555 lpfc_worker_wake_up(phba);
ed957684 556 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e 557
558 return 1;
559}
560
92d7f7b0
JS		 561void
562lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
563{
09372820 564 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0
JS		 565 struct lpfc_hba *phba = vport->phba;
566 struct lpfc_nodelist *ndlp, *next_ndlp;
567 int rc;
568
569 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 570 if (!NLP_CHK_NODE_ACT(ndlp))
571 continue;
92d7f7b0
JS		 572 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
573 continue;
98c9ea5c
JS		 574 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
575 ((vport->port_type == LPFC_NPIV_PORT) &&
576 (ndlp->nlp_DID == NameServer_DID)))
92d7f7b0
JS		 577 lpfc_unreg_rpi(vport, ndlp);
578
579 /* Leave Fabric nodes alone on link down */
580 if (!remove && ndlp->nlp_type & NLP_FABRIC)
581 continue;
582 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
583 remove
584 ? NLP_EVT_DEVICE_RM
585 : NLP_EVT_DEVICE_RECOVERY);
586 }
587 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
588 lpfc_mbx_unreg_vpi(vport);
09372820 589 spin_lock_irq(shost->host_lock);
92d7f7b0 590 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
09372820 591 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS		 592 }
593}
594
87af33fe 595void
98c9ea5c 596lpfc_port_link_failure(struct lpfc_vport *vport)
92d7f7b0 597{
92d7f7b0
JS		 598 /* Cleanup any outstanding RSCN activity */
599 lpfc_els_flush_rscn(vport);
600
601 /* Cleanup any outstanding ELS commands */
602 lpfc_els_flush_cmd(vport);
603
604 lpfc_cleanup_rpis(vport, 0);
605
92d7f7b0
JS		 606 /* Turn off discovery timer if its running */
607 lpfc_can_disctmo(vport);
608}
609
98c9ea5c
JS		 610static void
611lpfc_linkdown_port(struct lpfc_vport *vport)
612{
613 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
614
615 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
616
617 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
618 "Link Down: state:x%x rtry:x%x flg:x%x",
619 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
620
621 lpfc_port_link_failure(vport);
622
623}
624
dea3101e 625int
685f0bf7 626lpfc_linkdown(struct lpfc_hba *phba)
dea3101e 627{
2e0fef85
JS		 628 struct lpfc_vport *vport = phba->pport;
629 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
549e55cd 630 struct lpfc_vport **vports;
685f0bf7 631 LPFC_MBOXQ_t *mb;
549e55cd 632 int i;
dea3101e 633
3163f725 634 if (phba->link_state == LPFC_LINK_DOWN)
2e0fef85 635 return 0;
2e0fef85 636 spin_lock_irq(&phba->hbalock);
92d7f7b0 637 if (phba->link_state > LPFC_LINK_DOWN) {
2e0fef85 638 phba->link_state = LPFC_LINK_DOWN;
92d7f7b0
JS		 639 phba->pport->fc_flag &= ~FC_LBIT;
640 }
2e0fef85 641 spin_unlock_irq(&phba->hbalock);
549e55cd
JS		 642 vports = lpfc_create_vport_work_array(phba);
643 if (vports != NULL)
09372820 644 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
549e55cd
JS		 645 /* Issue a LINK DOWN event to all nodes */
646 lpfc_linkdown_port(vports[i]);
647 }
09372820 648 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 649 /* Clean up any firmware default rpi's */
2e0fef85
JS		 650 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
651 if (mb) {
92d7f7b0 652 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
ed957684 653 mb->vport = vport;
2e0fef85 654 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 655 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
dea3101e 656 == MBX_NOT_FINISHED) {
2e0fef85 657 mempool_free(mb, phba->mbox_mem_pool);
dea3101e 658 }
659 }
660
dea3101e 661 /* Setup myDID for link up if we are in pt2pt mode */
92d7f7b0
JS		 662 if (phba->pport->fc_flag & FC_PT2PT) {
663 phba->pport->fc_myDID = 0;
2e0fef85
JS		 664 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
665 if (mb) {
dea3101e 666 lpfc_config_link(phba, mb);
92d7f7b0 667 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
ed957684 668 mb->vport = vport;
0b727fea 669 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
dea3101e 670 == MBX_NOT_FINISHED) {
2e0fef85 671 mempool_free(mb, phba->mbox_mem_pool);
dea3101e 672 }
673 }
2e0fef85 674 spin_lock_irq(shost->host_lock);
92d7f7b0 675 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
2e0fef85 676 spin_unlock_irq(shost->host_lock);
dea3101e 677 }
2e0fef85 678
92d7f7b0
JS		 679 return 0;
680}
dea3101e 681
92d7f7b0
JS		 682static void
683lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
684{
685 struct lpfc_nodelist *ndlp;
dea3101e 686
92d7f7b0 687 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 688 if (!NLP_CHK_NODE_ACT(ndlp))
689 continue;
92d7f7b0
JS		 690 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
691 continue;
92d7f7b0 692 if (ndlp->nlp_type & NLP_FABRIC) {
e47c9093
JS		 693 /* On Linkup its safe to clean up the ndlp
694 * from Fabric connections.
695 */
92d7f7b0
JS		 696 if (ndlp->nlp_DID != Fabric_DID)
697 lpfc_unreg_rpi(vport, ndlp);
698 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
699 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
e47c9093
JS		 700 /* Fail outstanding IO now since device is
701 * marked for PLOGI.
702 */
92d7f7b0
JS		 703 lpfc_unreg_rpi(vport, ndlp);
704 }
705 }
dea3101e 706}
707
92d7f7b0
JS		 708static void
709lpfc_linkup_port(struct lpfc_vport *vport)
dea3101e 710{
92d7f7b0 711 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0
JS		 712 struct lpfc_hba *phba = vport->phba;
713
714 if ((vport->load_flag & FC_UNLOADING) != 0)
715 return;
716
858c9f6c
JS		 717 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
718 "Link Up: top:x%x speed:x%x flg:x%x",
719 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
720
92d7f7b0
JS		 721 /* If NPIV is not enabled, only bring the physical port up */
722 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
723 (vport != phba->pport))
724 return;
dea3101e 725
2e0fef85 726 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
d2873e4c 727
2e0fef85 728 spin_lock_irq(shost->host_lock);
2e0fef85
JS		 729 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
730 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
731 vport->fc_flag |= FC_NDISC_ACTIVE;
732 vport->fc_ns_retry = 0;
733 spin_unlock_irq(shost->host_lock);
dea3101e 734
92d7f7b0
JS		 735 if (vport->fc_flag & FC_LBIT)
736 lpfc_linkup_cleanup_nodes(vport);
dea3101e 737
92d7f7b0
JS		 738}
739
740static int
741lpfc_linkup(struct lpfc_hba *phba)
742{
549e55cd
JS		 743 struct lpfc_vport **vports;
744 int i;
92d7f7b0
JS		 745
746 phba->link_state = LPFC_LINK_UP;
747
748 /* Unblock fabric iocbs if they are blocked */
749 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
750 del_timer_sync(&phba->fabric_block_timer);
751
549e55cd
JS		 752 vports = lpfc_create_vport_work_array(phba);
753 if (vports != NULL)
09372820 754 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
549e55cd 755 lpfc_linkup_port(vports[i]);
09372820 756 lpfc_destroy_vport_work_array(phba, vports);
92d7f7b0
JS		 757 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
758 lpfc_issue_clear_la(phba, phba->pport);
dea3101e 759
760 return 0;
761}
762
763/*
764 * This routine handles processing a CLEAR_LA mailbox
765 * command upon completion. It is setup in the LPFC_MBOXQ
766 * as the completion routine when the command is
767 * handed off to the SLI layer.
768 */
a6ababd2 769static void
2e0fef85 770lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 771{
2e0fef85
JS		 772 struct lpfc_vport *vport = pmb->vport;
773 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
774 struct lpfc_sli *psli = &phba->sli;
775 MAILBOX_t *mb = &pmb->mb;
dea3101e 776 uint32_t control;
777
dea3101e 778 /* Since we don't do discovery right now, turn these off here */
a4bc3379 779 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 780 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
781 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
782
783 /* Check for error */
784 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
92d7f7b0 785 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 786 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
787 "0320 CLEAR_LA mbxStatus error x%x hba "
788 "state x%x\n",
789 mb->mbxStatus, vport->port_state);
2e0fef85 790 phba->link_state = LPFC_HBA_ERROR;
dea3101e 791 goto out;
792 }
793
92d7f7b0
JS		 794 if (vport->port_type == LPFC_PHYSICAL_PORT)
795 phba->link_state = LPFC_HBA_READY;
796
797 spin_lock_irq(&phba->hbalock);
798 psli->sli_flag |= LPFC_PROCESS_LA;
799 control = readl(phba->HCregaddr);
800 control |= HC_LAINT_ENA;
801 writel(control, phba->HCregaddr);
802 readl(phba->HCregaddr); /* flush */
803 spin_unlock_irq(&phba->hbalock);
1b32f6aa 804 mempool_free(pmb, phba->mbox_mem_pool);
92d7f7b0 805 return;
dea3101e 806
dea3101e 807out:
808 /* Device Discovery completes */
e8b62011
JS		 809 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
810 "0225 Device Discovery completes\n");
2e0fef85 811 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 812
2e0fef85 813 spin_lock_irq(shost->host_lock);
58da1ffb 814 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
2e0fef85 815 spin_unlock_irq(shost->host_lock);
dea3101e 816
2e0fef85 817 lpfc_can_disctmo(vport);
dea3101e 818
819 /* turn on Link Attention interrupts */
2e0fef85
JS		 820
821 spin_lock_irq(&phba->hbalock);
dea3101e 822 psli->sli_flag |= LPFC_PROCESS_LA;
823 control = readl(phba->HCregaddr);
824 control |= HC_LAINT_ENA;
825 writel(control, phba->HCregaddr);
826 readl(phba->HCregaddr); /* flush */
2e0fef85 827 spin_unlock_irq(&phba->hbalock);
dea3101e 828
829 return;
830}
831
2e0fef85 832
dea3101e 833static void
25594c6b 834lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 835{
2e0fef85 836 struct lpfc_vport *vport = pmb->vport;
dea3101e 837
25594c6b 838 if (pmb->mb.mbxStatus)
dea3101e 839 goto out;
dea3101e 840
25594c6b
JW		 841 mempool_free(pmb, phba->mbox_mem_pool);
842
843 if (phba->fc_topology == TOPOLOGY_LOOP &&
2e0fef85
JS		 844 vport->fc_flag & FC_PUBLIC_LOOP &&
845 !(vport->fc_flag & FC_LBIT)) {
25594c6b 846 /* Need to wait for FAN - use discovery timer
2e0fef85 847 * for timeout. port_state is identically
25594c6b
JW		 848 * LPFC_LOCAL_CFG_LINK while waiting for FAN
849 */
2e0fef85 850 lpfc_set_disctmo(vport);
25594c6b 851 return;
92d7f7b0 852 }
dea3101e 853
2e0fef85 854 /* Start discovery by sending a FLOGI. port_state is identically
25594c6b
JW		 855 * LPFC_FLOGI while waiting for FLOGI cmpl
856 */
92d7f7b0 857 if (vport->port_state != LPFC_FLOGI) {
92d7f7b0
JS		 858 lpfc_initial_flogi(vport);
859 }
25594c6b 860 return;
dea3101e 861
862out:
e8b62011
JS		 863 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
864 "0306 CONFIG_LINK mbxStatus error x%x "
865 "HBA state x%x\n",
866 pmb->mb.mbxStatus, vport->port_state);
92d7f7b0 867 mempool_free(pmb, phba->mbox_mem_pool);
25594c6b 868
92d7f7b0 869 lpfc_linkdown(phba);
25594c6b 870
e8b62011
JS		 871 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
872 "0200 CONFIG_LINK bad hba state x%x\n",
873 vport->port_state);
dea3101e 874
92d7f7b0 875 lpfc_issue_clear_la(phba, vport);
dea3101e 876 return;
877}
878
879static void
2e0fef85 880lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 881{
dea3101e 882 MAILBOX_t *mb = &pmb->mb;
883 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
2e0fef85 884 struct lpfc_vport *vport = pmb->vport;
dea3101e 885
886
887 /* Check for error */
888 if (mb->mbxStatus) {
889 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 890 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
891 "0319 READ_SPARAM mbxStatus error x%x "
892 "hba state x%x>\n",
893 mb->mbxStatus, vport->port_state);
dea3101e 894 lpfc_linkdown(phba);
dea3101e 895 goto out;
896 }
897
2e0fef85 898 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
dea3101e 899 sizeof (struct serv_parm));
a12e07bc 900 if (phba->cfg_soft_wwnn)
2e0fef85
JS		 901 u64_to_wwn(phba->cfg_soft_wwnn,
902 vport->fc_sparam.nodeName.u.wwn);
c3f28afa 903 if (phba->cfg_soft_wwpn)
2e0fef85
JS		 904 u64_to_wwn(phba->cfg_soft_wwpn,
905 vport->fc_sparam.portName.u.wwn);
92d7f7b0
JS		 906 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
907 sizeof(vport->fc_nodename));
908 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
909 sizeof(vport->fc_portname));
910 if (vport->port_type == LPFC_PHYSICAL_PORT) {
911 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
912 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
913 }
914
dea3101e 915 lpfc_mbuf_free(phba, mp->virt, mp->phys);
916 kfree(mp);
2e0fef85 917 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 918 return;
919
920out:
921 pmb->context1 = NULL;
922 lpfc_mbuf_free(phba, mp->virt, mp->phys);
923 kfree(mp);
92d7f7b0
JS		 924 lpfc_issue_clear_la(phba, vport);
925 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 926 return;
927}
928
929static void
92d7f7b0 930lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
dea3101e 931{
92d7f7b0 932 struct lpfc_vport *vport = phba->pport;
dea3101e 933 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
2e0fef85 934 int i;
14691150
JS		 935 struct lpfc_dmabuf *mp;
936 int rc;
937
dea3101e 938 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
939 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
940
92d7f7b0 941 spin_lock_irq(&phba->hbalock);
2fe165b6 942 switch (la->UlnkSpeed) {
92d7f7b0
JS		 943 case LA_1GHZ_LINK:
944 phba->fc_linkspeed = LA_1GHZ_LINK;
945 break;
946 case LA_2GHZ_LINK:
947 phba->fc_linkspeed = LA_2GHZ_LINK;
948 break;
949 case LA_4GHZ_LINK:
950 phba->fc_linkspeed = LA_4GHZ_LINK;
951 break;
952 case LA_8GHZ_LINK:
953 phba->fc_linkspeed = LA_8GHZ_LINK;
954 break;
955 default:
956 phba->fc_linkspeed = LA_UNKNW_LINK;
957 break;
dea3101e 958 }
959
960 phba->fc_topology = la->topology;
92d7f7b0 961 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
dea3101e 962
963 if (phba->fc_topology == TOPOLOGY_LOOP) {
92d7f7b0 964 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
dea3101e 965
92d7f7b0 966 /* Get Loop Map information */
dea3101e 967 if (la->il)
2e0fef85 968 vport->fc_flag |= FC_LBIT;
dea3101e 969
2e0fef85 970 vport->fc_myDID = la->granted_AL_PA;
dea3101e 971 i = la->un.lilpBde64.tus.f.bdeSize;
972
973 if (i == 0) {
974 phba->alpa_map[0] = 0;
975 } else {
e8b62011 976 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
dea3101e 977 int numalpa, j, k;
978 union {
979 uint8_t pamap[16];
980 struct {
981 uint32_t wd1;
982 uint32_t wd2;
983 uint32_t wd3;
984 uint32_t wd4;
985 } pa;
986 } un;
987 numalpa = phba->alpa_map[0];
988 j = 0;
989 while (j < numalpa) {
990 memset(un.pamap, 0, 16);
991 for (k = 1; j < numalpa; k++) {
992 un.pamap[k - 1] =
993 phba->alpa_map[j + 1];
994 j++;
995 if (k == 16)
996 break;
997 }
998 /* Link Up Event ALPA map */
999 lpfc_printf_log(phba,
92d7f7b0
JS		 1000 KERN_WARNING,
1001 LOG_LINK_EVENT,
e8b62011 1002 "1304 Link Up Event "
92d7f7b0
JS		 1003 "ALPA map Data: x%x "
1004 "x%x x%x x%x\n",
92d7f7b0
JS		 1005 un.pa.wd1, un.pa.wd2,
1006 un.pa.wd3, un.pa.wd4);
dea3101e 1007 }
1008 }
1009 }
1010 } else {
92d7f7b0 1011 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
78b2d852 1012 if (phba->max_vpi && phba->cfg_enable_npiv &&
92d7f7b0
JS		 1013 (phba->sli_rev == 3))
1014 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
1015 }
2e0fef85
JS		 1016 vport->fc_myDID = phba->fc_pref_DID;
1017 vport->fc_flag |= FC_LBIT;
dea3101e 1018 }
92d7f7b0 1019 spin_unlock_irq(&phba->hbalock);
dea3101e 1020
1021 lpfc_linkup(phba);
1022 if (sparam_mbox) {
92d7f7b0 1023 lpfc_read_sparam(phba, sparam_mbox, 0);
2e0fef85 1024 sparam_mbox->vport = vport;
dea3101e 1025 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
0b727fea 1026 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
14691150
JS		 1027 if (rc == MBX_NOT_FINISHED) {
1028 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
1029 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1030 kfree(mp);
1031 mempool_free(sparam_mbox, phba->mbox_mem_pool);
1032 if (cfglink_mbox)
1033 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
92d7f7b0 1034 goto out;
14691150 1035 }
dea3101e 1036 }
1037
1038 if (cfglink_mbox) {
2e0fef85 1039 vport->port_state = LPFC_LOCAL_CFG_LINK;
dea3101e 1040 lpfc_config_link(phba, cfglink_mbox);
2e0fef85 1041 cfglink_mbox->vport = vport;
25594c6b 1042 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
0b727fea 1043 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
92d7f7b0
JS		 1044 if (rc != MBX_NOT_FINISHED)
1045 return;
1046 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
dea3101e 1047 }
92d7f7b0
JS		 1048out:
1049 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1050 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1051 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
1052 vport->port_state, sparam_mbox, cfglink_mbox);
92d7f7b0
JS		 1053 lpfc_issue_clear_la(phba, vport);
1054 return;
dea3101e 1055}
1056
1057static void
2e0fef85
JS		 1058lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
1059{
dea3101e 1060 uint32_t control;
1061 struct lpfc_sli *psli = &phba->sli;
1062
1063 lpfc_linkdown(phba);
1064
1065 /* turn on Link Attention interrupts - no CLEAR_LA needed */
2e0fef85 1066 spin_lock_irq(&phba->hbalock);
dea3101e 1067 psli->sli_flag |= LPFC_PROCESS_LA;
1068 control = readl(phba->HCregaddr);
1069 control |= HC_LAINT_ENA;
1070 writel(control, phba->HCregaddr);
1071 readl(phba->HCregaddr); /* flush */
2e0fef85 1072 spin_unlock_irq(&phba->hbalock);
dea3101e 1073}
1074
1075/*
1076 * This routine handles processing a READ_LA mailbox
1077 * command upon completion. It is setup in the LPFC_MBOXQ
1078 * as the completion routine when the command is
1079 * handed off to the SLI layer.
1080 */
1081void
2e0fef85 1082lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1083{
2e0fef85
JS		 1084 struct lpfc_vport *vport = pmb->vport;
1085 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 1086 READ_LA_VAR *la;
1087 MAILBOX_t *mb = &pmb->mb;
1088 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1089
0d2b6b83
JS		 1090 /* Unblock ELS traffic */
1091 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 1092 /* Check for error */
1093 if (mb->mbxStatus) {
ed957684 1094 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
e8b62011
JS		 1095 "1307 READ_LA mbox error x%x state x%x\n",
1096 mb->mbxStatus, vport->port_state);
dea3101e 1097 lpfc_mbx_issue_link_down(phba);
2e0fef85 1098 phba->link_state = LPFC_HBA_ERROR;
dea3101e 1099 goto lpfc_mbx_cmpl_read_la_free_mbuf;
1100 }
1101
1102 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
1103
1104 memcpy(&phba->alpa_map[0], mp->virt, 128);
1105
2e0fef85 1106 spin_lock_irq(shost->host_lock);
c9f8735b 1107 if (la->pb)
2e0fef85 1108 vport->fc_flag |= FC_BYPASSED_MODE;
c9f8735b 1109 else
2e0fef85
JS		 1110 vport->fc_flag &= ~FC_BYPASSED_MODE;
1111 spin_unlock_irq(shost->host_lock);
c9f8735b 1112
dea3101e 1113 if (((phba->fc_eventTag + 1) < la->eventTag) ||
92d7f7b0 1114 (phba->fc_eventTag == la->eventTag)) {
dea3101e 1115 phba->fc_stat.LinkMultiEvent++;
2e0fef85 1116 if (la->attType == AT_LINK_UP)
dea3101e 1117 if (phba->fc_eventTag != 0)
1118 lpfc_linkdown(phba);
92d7f7b0 1119 }
dea3101e 1120
1121 phba->fc_eventTag = la->eventTag;
1122
1123 if (la->attType == AT_LINK_UP) {
1124 phba->fc_stat.LinkUp++;
2e0fef85 1125 if (phba->link_flag & LS_LOOPBACK_MODE) {
3163f725 1126 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011
JS		 1127 "1306 Link Up Event in loop back mode "
1128 "x%x received Data: x%x x%x x%x x%x\n",
1129 la->eventTag, phba->fc_eventTag,
1130 la->granted_AL_PA, la->UlnkSpeed,
1131 phba->alpa_map[0]);
5b8bd0c9
JS		 1132 } else {
1133 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011
JS		 1134 "1303 Link Up Event x%x received "
1135 "Data: x%x x%x x%x x%x\n",
1136 la->eventTag, phba->fc_eventTag,
1137 la->granted_AL_PA, la->UlnkSpeed,
1138 phba->alpa_map[0]);
5b8bd0c9 1139 }
92d7f7b0 1140 lpfc_mbx_process_link_up(phba, la);
dea3101e 1141 } else {
1142 phba->fc_stat.LinkDown++;
3163f725
JS		 1143 if (phba->link_flag & LS_LOOPBACK_MODE) {
1144 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1145 "1308 Link Down Event in loop back mode "
1146 "x%x received "
1147 "Data: x%x x%x x%x\n",
1148 la->eventTag, phba->fc_eventTag,
1149 phba->pport->port_state, vport->fc_flag);
1150 }
1151 else {
1152 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 1153 "1305 Link Down Event x%x received "
dea3101e 1154 "Data: x%x x%x x%x\n",
e8b62011 1155 la->eventTag, phba->fc_eventTag,
2e0fef85 1156 phba->pport->port_state, vport->fc_flag);
3163f725 1157 }
dea3101e 1158 lpfc_mbx_issue_link_down(phba);
1159 }
1160
1161lpfc_mbx_cmpl_read_la_free_mbuf:
1162 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1163 kfree(mp);
1164 mempool_free(pmb, phba->mbox_mem_pool);
1165 return;
1166}
1167
1168/*
1169 * This routine handles processing a REG_LOGIN mailbox
1170 * command upon completion. It is setup in the LPFC_MBOXQ
1171 * as the completion routine when the command is
1172 * handed off to the SLI layer.
1173 */
1174void
2e0fef85 1175lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1176{
2e0fef85 1177 struct lpfc_vport *vport = pmb->vport;
92d7f7b0 1178 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2e0fef85 1179 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
dea3101e 1180
dea3101e 1181 pmb->context1 = NULL;
1182
1183 /* Good status, call state machine */
2e0fef85 1184 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
dea3101e 1185 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1186 kfree(mp);
2e0fef85 1187 mempool_free(pmb, phba->mbox_mem_pool);
fa4066b6
JS		 1188 /* decrement the node reference count held for this callback
1189 * function.
1190 */
329f9bc7 1191 lpfc_nlp_put(ndlp);
dea3101e 1192
1193 return;
1194}
1195
92d7f7b0
JS		 1196static void
1197lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1198{
1199 MAILBOX_t *mb = &pmb->mb;
1200 struct lpfc_vport *vport = pmb->vport;
1201 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1202
1203 switch (mb->mbxStatus) {
1204 case 0x0011:
1205 case 0x0020:
1206 case 0x9700:
e8b62011
JS		 1207 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1208 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
1209 mb->mbxStatus);
92d7f7b0 1210 break;
92d7f7b0
JS		 1211 }
1212 vport->unreg_vpi_cmpl = VPORT_OK;
1213 mempool_free(pmb, phba->mbox_mem_pool);
1214 /*
1215 * This shost reference might have been taken at the beginning of
1216 * lpfc_vport_delete()
1217 */
1218 if (vport->load_flag & FC_UNLOADING)
1219 scsi_host_put(shost);
1220}
1221
1222void
1223lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
1224{
1225 struct lpfc_hba *phba = vport->phba;
1226 LPFC_MBOXQ_t *mbox;
1227 int rc;
1228
1229 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1230 if (!mbox)
1231 return;
1232
1233 lpfc_unreg_vpi(phba, vport->vpi, mbox);
1234 mbox->vport = vport;
1235 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
0b727fea 1236 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
92d7f7b0 1237 if (rc == MBX_NOT_FINISHED) {
e8b62011
JS		 1238 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
1239 "1800 Could not issue unreg_vpi\n");
92d7f7b0
JS		 1240 mempool_free(mbox, phba->mbox_mem_pool);
1241 vport->unreg_vpi_cmpl = VPORT_ERROR;
1242 }
1243}
1244
1245static void
1246lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1247{
1248 struct lpfc_vport *vport = pmb->vport;
1249 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1250 MAILBOX_t *mb = &pmb->mb;
1251
1252 switch (mb->mbxStatus) {
1253 case 0x0011:
1254 case 0x9601:
1255 case 0x9602:
e8b62011
JS		 1256 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1257 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
1258 mb->mbxStatus);
92d7f7b0
JS		 1259 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1260 spin_lock_irq(shost->host_lock);
1261 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1262 spin_unlock_irq(shost->host_lock);
1263 vport->fc_myDID = 0;
1264 goto out;
1265 }
92d7f7b0
JS		 1266
1267 vport->num_disc_nodes = 0;
1268 /* go thru NPR list and issue ELS PLOGIs */
1269 if (vport->fc_npr_cnt)
1270 lpfc_els_disc_plogi(vport);
1271
1272 if (!vport->num_disc_nodes) {
1273 spin_lock_irq(shost->host_lock);
1274 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1275 spin_unlock_irq(shost->host_lock);
1276 lpfc_can_disctmo(vport);
1277 }
1278 vport->port_state = LPFC_VPORT_READY;
1279
1280out:
1281 mempool_free(pmb, phba->mbox_mem_pool);
1282 return;
1283}
1284
dea3101e 1285/*
1286 * This routine handles processing a Fabric REG_LOGIN mailbox
1287 * command upon completion. It is setup in the LPFC_MBOXQ
1288 * as the completion routine when the command is
1289 * handed off to the SLI layer.
1290 */
1291void
2e0fef85 1292lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1293{
92d7f7b0 1294 struct lpfc_vport *vport = pmb->vport;
2e0fef85
JS		 1295 MAILBOX_t *mb = &pmb->mb;
1296 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
92d7f7b0 1297 struct lpfc_nodelist *ndlp;
549e55cd
JS		 1298 struct lpfc_vport **vports;
1299 int i;
dea3101e 1300
549e55cd 1301 ndlp = (struct lpfc_nodelist *) pmb->context2;
329f9bc7
JS		 1302 pmb->context1 = NULL;
1303 pmb->context2 = NULL;
dea3101e 1304 if (mb->mbxStatus) {
1305 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1306 kfree(mp);
329f9bc7 1307 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1308
92d7f7b0
JS		 1309 if (phba->fc_topology == TOPOLOGY_LOOP) {
1310 /* FLOGI failed, use loop map to make discovery list */
1311 lpfc_disc_list_loopmap(vport);
1312
1313 /* Start discovery */
1314 lpfc_disc_start(vport);
e47c9093
JS		 1315 /* Decrement the reference count to ndlp after the
1316 * reference to the ndlp are done.
1317 */
1318 lpfc_nlp_put(ndlp);
92d7f7b0
JS		 1319 return;
1320 }
1321
1322 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1323 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1324 "0258 Register Fabric login error: 0x%x\n",
1325 mb->mbxStatus);
e47c9093
JS		 1326 /* Decrement the reference count to ndlp after the reference
1327 * to the ndlp are done.
1328 */
1329 lpfc_nlp_put(ndlp);
dea3101e 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
2e0fef85 1337 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
549e55cd
JS		 1338 vports = lpfc_create_vport_work_array(phba);
1339 if (vports != NULL)
1340 for(i = 0;
09372820 1341 i <= phba->max_vpi && vports[i] != NULL;
549e55cd
JS		 1342 i++) {
1343 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
1344 continue;
58da1ffb
JS		 1345 if (phba->fc_topology == TOPOLOGY_LOOP) {
1346 lpfc_vport_set_state(vports[i],
1347 FC_VPORT_LINKDOWN);
1348 continue;
1349 }
549e55cd
JS		 1350 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
1351 lpfc_initial_fdisc(vports[i]);
58da1ffb 1352 else {
549e55cd
JS		 1353 lpfc_vport_set_state(vports[i],
1354 FC_VPORT_NO_FABRIC_SUPP);
e8b62011
JS		 1355 lpfc_printf_vlog(vport, KERN_ERR,
1356 LOG_ELS,
1357 "0259 No NPIV "
1358 "Fabric support\n");
549e55cd 1359 }
dea3101e 1360 }
09372820 1361 lpfc_destroy_vport_work_array(phba, vports);
92d7f7b0 1362 lpfc_do_scr_ns_plogi(phba, vport);
dea3101e 1363 }
1364
1365 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1366 kfree(mp);
329f9bc7 1367 mempool_free(pmb, phba->mbox_mem_pool);
e47c9093
JS		 1368
1369 /* Drop the reference count from the mbox at the end after
1370 * all the current reference to the ndlp have been done.
1371 */
1372 lpfc_nlp_put(ndlp);
dea3101e 1373 return;
1374}
1375
1376/*
1377 * This routine handles processing a NameServer REG_LOGIN mailbox
1378 * command upon completion. It is setup in the LPFC_MBOXQ
1379 * as the completion routine when the command is
1380 * handed off to the SLI layer.
1381 */
1382void
2e0fef85 1383lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1384{
2e0fef85
JS		 1385 MAILBOX_t *mb = &pmb->mb;
1386 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1387 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
1388 struct lpfc_vport *vport = pmb->vport;
dea3101e 1389
1390 if (mb->mbxStatus) {
92d7f7b0 1391out:
fa4066b6
JS		 1392 /* decrement the node reference count held for this
1393 * callback function.
1394 */
329f9bc7 1395 lpfc_nlp_put(ndlp);
dea3101e 1396 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1397 kfree(mp);
de0c5b32 1398 mempool_free(pmb, phba->mbox_mem_pool);
87af33fe
JS		 1399
1400 /* If no other thread is using the ndlp, free it */
1401 lpfc_nlp_not_used(ndlp);
dea3101e 1402
92d7f7b0
JS		 1403 if (phba->fc_topology == TOPOLOGY_LOOP) {
1404 /*
1405 * RegLogin failed, use loop map to make discovery
1406 * list
1407 */
1408 lpfc_disc_list_loopmap(vport);
dea3101e 1409
92d7f7b0
JS		 1410 /* Start discovery */
1411 lpfc_disc_start(vport);
1412 return;
1413 }
1414 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1415 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1416 "0260 Register NameServer error: 0x%x\n",
1417 mb->mbxStatus);
dea3101e 1418 return;
1419 }
1420
1421 pmb->context1 = NULL;
1422
dea3101e 1423 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1424 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 1425 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1426
2e0fef85
JS		 1427 if (vport->port_state < LPFC_VPORT_READY) {
1428 /* Link up discovery requires Fabric registration. */
92d7f7b0
JS		 1429 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
1430 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
1431 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
1432 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
1433 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
1434
1435 /* Issue SCR just before NameServer GID_FT Query */
1436 lpfc_issue_els_scr(vport, SCR_DID, 0);
dea3101e 1437 }
1438
2e0fef85 1439 vport->fc_ns_retry = 0;
dea3101e 1440 /* Good status, issue CT Request to NameServer */
92d7f7b0 1441 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
dea3101e 1442 /* Cannot issue NameServer Query, so finish up discovery */
92d7f7b0 1443 goto out;
dea3101e 1444 }
1445
fa4066b6
JS		 1446 /* decrement the node reference count held for this
1447 * callback function.
1448 */
329f9bc7 1449 lpfc_nlp_put(ndlp);
dea3101e 1450 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1451 kfree(mp);
2e0fef85 1452 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1453
1454 return;
1455}
1456
1457static void
2e0fef85 1458lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1459{
2e0fef85
JS		 1460 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1461 struct fc_rport *rport;
dea3101e 1462 struct lpfc_rport_data *rdata;
1463 struct fc_rport_identifiers rport_ids;
2e0fef85 1464 struct lpfc_hba *phba = vport->phba;
dea3101e 1465
1466 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 1467 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1468 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e 1469 rport_ids.port_id = ndlp->nlp_DID;
1470 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e 1471
329f9bc7
JS		 1472 /*
1473 * We leave our node pointer in rport->dd_data when we unregister a
1474 * FCP target port. But fc_remote_port_add zeros the space to which
1475 * rport->dd_data points. So, if we're reusing a previously
1476 * registered port, drop the reference that we took the last time we
1477 * registered the port.
1478 */
1479 if (ndlp->rport && ndlp->rport->dd_data &&
e47c9093 1480 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
329f9bc7 1481 lpfc_nlp_put(ndlp);
858c9f6c
JS		 1482
1483 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
1484 "rport add: did:x%x flg:x%x type x%x",
1485 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1486
2e0fef85 1487 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
329f9bc7 1488 if (!rport || !get_device(&rport->dev)) {
dea3101e 1489 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1490 "Warning: fc_remote_port_add failed\n");
1491 return;
1492 }
1493
1494 /* initialize static port data */
1495 rport->maxframe_size = ndlp->nlp_maxframe;
1496 rport->supported_classes = ndlp->nlp_class_sup;
dea3101e 1497 rdata = rport->dd_data;
329f9bc7 1498 rdata->pnode = lpfc_nlp_get(ndlp);
23dc04f1
JSEC		 1499
1500 if (ndlp->nlp_type & NLP_FCP_TARGET)
1501 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1502 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1503 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1504
1505
1506 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1507 fc_remote_port_rolechg(rport, rport_ids.roles);
1508
071fbd3d 1509 if ((rport->scsi_target_id != -1) &&
92d7f7b0 1510 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
071fbd3d
JS		 1511 ndlp->nlp_sid = rport->scsi_target_id;
1512 }
19a7b4ae
JSEC		 1513 return;
1514}
1515
1516static void
2e0fef85 1517lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
19a7b4ae
JSEC		 1518{
1519 struct fc_rport *rport = ndlp->rport;
c01f3208 1520
858c9f6c
JS		 1521 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
1522 "rport delete: did:x%x flg:x%x type x%x",
1523 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1524
19a7b4ae 1525 fc_remote_port_delete(rport);
dea3101e 1526
1527 return;
1528}
1529
de0c5b32 1530static void
2e0fef85 1531lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
dea3101e 1532{
2e0fef85
JS		 1533 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1534
1535 spin_lock_irq(shost->host_lock);
de0c5b32
JS		 1536 switch (state) {
1537 case NLP_STE_UNUSED_NODE:
2e0fef85 1538 vport->fc_unused_cnt += count;
de0c5b32
JS		 1539 break;
1540 case NLP_STE_PLOGI_ISSUE:
2e0fef85 1541 vport->fc_plogi_cnt += count;
de0c5b32
JS		 1542 break;
1543 case NLP_STE_ADISC_ISSUE:
2e0fef85 1544 vport->fc_adisc_cnt += count;
dea3101e 1545 break;
de0c5b32 1546 case NLP_STE_REG_LOGIN_ISSUE:
2e0fef85 1547 vport->fc_reglogin_cnt += count;
de0c5b32
JS		 1548 break;
1549 case NLP_STE_PRLI_ISSUE:
2e0fef85 1550 vport->fc_prli_cnt += count;
de0c5b32
JS		 1551 break;
1552 case NLP_STE_UNMAPPED_NODE:
2e0fef85 1553 vport->fc_unmap_cnt += count;
de0c5b32
JS		 1554 break;
1555 case NLP_STE_MAPPED_NODE:
2e0fef85 1556 vport->fc_map_cnt += count;
de0c5b32
JS		 1557 break;
1558 case NLP_STE_NPR_NODE:
2e0fef85 1559 vport->fc_npr_cnt += count;
de0c5b32
JS		 1560 break;
1561 }
2e0fef85 1562 spin_unlock_irq(shost->host_lock);
de0c5b32 1563}
66a9ed66 1564
de0c5b32 1565static void
2e0fef85 1566lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
de0c5b32
JS		 1567 int old_state, int new_state)
1568{
2e0fef85
JS		 1569 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1570
de0c5b32
JS		 1571 if (new_state == NLP_STE_UNMAPPED_NODE) {
1572 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1573 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1574 ndlp->nlp_type |= NLP_FC_NODE;
1575 }
1576 if (new_state == NLP_STE_MAPPED_NODE)
1577 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1578 if (new_state == NLP_STE_NPR_NODE)
1579 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
1580
1581 /* Transport interface */
1582 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
1583 old_state == NLP_STE_UNMAPPED_NODE)) {
2e0fef85
JS		 1584 vport->phba->nport_event_cnt++;
1585 lpfc_unregister_remote_port(ndlp);
de0c5b32 1586 }
dea3101e 1587
de0c5b32
JS		 1588 if (new_state == NLP_STE_MAPPED_NODE ||
1589 new_state == NLP_STE_UNMAPPED_NODE) {
2e0fef85 1590 vport->phba->nport_event_cnt++;
858c9f6c
JS		 1591 /*
1592 * Tell the fc transport about the port, if we haven't
1593 * already. If we have, and it's a scsi entity, be
1594 * sure to unblock any attached scsi devices
1595 */
1596 lpfc_register_remote_port(vport, ndlp);
de0c5b32 1597 }
858c9f6c
JS		 1598 /*
1599 * if we added to Mapped list, but the remote port
1600 * registration failed or assigned a target id outside
1601 * our presentable range - move the node to the
1602 * Unmapped List
1603 */
de0c5b32
JS		 1604 if (new_state == NLP_STE_MAPPED_NODE &&
1605 (!ndlp->rport ||
1606 ndlp->rport->scsi_target_id == -1 ||
1607 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
2e0fef85 1608 spin_lock_irq(shost->host_lock);
de0c5b32 1609 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
2e0fef85
JS		 1610 spin_unlock_irq(shost->host_lock);
1611 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1612 }
de0c5b32
JS		 1613}
1614
685f0bf7
JS		 1615static char *
1616lpfc_nlp_state_name(char *buffer, size_t size, int state)
1617{
1618 static char *states[] = {
1619 [NLP_STE_UNUSED_NODE] = "UNUSED",
1620 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
1621 [NLP_STE_ADISC_ISSUE] = "ADISC",
1622 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
1623 [NLP_STE_PRLI_ISSUE] = "PRLI",
1624 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
1625 [NLP_STE_MAPPED_NODE] = "MAPPED",
1626 [NLP_STE_NPR_NODE] = "NPR",
1627 };
1628
311464ec 1629 if (state < NLP_STE_MAX_STATE && states[state])
685f0bf7
JS		 1630 strlcpy(buffer, states[state], size);
1631 else
1632 snprintf(buffer, size, "unknown (%d)", state);
1633 return buffer;
1634}
1635
de0c5b32 1636void
2e0fef85
JS		 1637lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1638 int state)
de0c5b32 1639{
2e0fef85 1640 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
de0c5b32 1641 int old_state = ndlp->nlp_state;
685f0bf7 1642 char name1[16], name2[16];
de0c5b32 1643
e8b62011
JS		 1644 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1645 "0904 NPort state transition x%06x, %s -> %s\n",
1646 ndlp->nlp_DID,
1647 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
1648 lpfc_nlp_state_name(name2, sizeof(name2), state));
858c9f6c
JS		 1649
1650 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
1651 "node statechg did:x%x old:%d ste:%d",
1652 ndlp->nlp_DID, old_state, state);
1653
de0c5b32 1654 if (old_state == NLP_STE_NPR_NODE &&
de0c5b32 1655 state != NLP_STE_NPR_NODE)
2e0fef85 1656 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32
JS		 1657 if (old_state == NLP_STE_UNMAPPED_NODE) {
1658 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1659 ndlp->nlp_type &= ~NLP_FC_NODE;
1660 }
1661
685f0bf7 1662 if (list_empty(&ndlp->nlp_listp)) {
2e0fef85
JS		 1663 spin_lock_irq(shost->host_lock);
1664 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
1665 spin_unlock_irq(shost->host_lock);
685f0bf7 1666 } else if (old_state)
2e0fef85 1667 lpfc_nlp_counters(vport, old_state, -1);
de0c5b32
JS		 1668
1669 ndlp->nlp_state = state;
2e0fef85
JS		 1670 lpfc_nlp_counters(vport, state, 1);
1671 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
de0c5b32
JS		 1672}
1673
e47c9093
JS		 1674void
1675lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1676{
1677 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1678
1679 if (list_empty(&ndlp->nlp_listp)) {
1680 spin_lock_irq(shost->host_lock);
1681 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
1682 spin_unlock_irq(shost->host_lock);
1683 }
1684}
1685
de0c5b32 1686void
2e0fef85 1687lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 1688{
2e0fef85
JS		 1689 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1690
0d2b6b83 1691 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32 1692 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2e0fef85
JS		 1693 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
1694 spin_lock_irq(shost->host_lock);
685f0bf7 1695 list_del_init(&ndlp->nlp_listp);
2e0fef85 1696 spin_unlock_irq(shost->host_lock);
858c9f6c 1697 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
e47c9093
JS		 1698 NLP_STE_UNUSED_NODE);
1699}
1700
4d9db01e 1701static void
e47c9093
JS		 1702lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1703{
0d2b6b83 1704 lpfc_cancel_retry_delay_tmo(vport, ndlp);
e47c9093
JS		 1705 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
1706 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
1707 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
1708 NLP_STE_UNUSED_NODE);
1709}
1710
1711struct lpfc_nodelist *
1712lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1713 int state)
1714{
1715 struct lpfc_hba *phba = vport->phba;
1716 uint32_t did;
1717 unsigned long flags;
1718
1719 if (!ndlp)
1720 return NULL;
1721
1722 spin_lock_irqsave(&phba->ndlp_lock, flags);
1723 /* The ndlp should not be in memory free mode */
1724 if (NLP_CHK_FREE_REQ(ndlp)) {
1725 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
1726 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
1727 "0277 lpfc_enable_node: ndlp:x%p "
1728 "usgmap:x%x refcnt:%d\n",
1729 (void *)ndlp, ndlp->nlp_usg_map,
1730 atomic_read(&ndlp->kref.refcount));
1731 return NULL;
1732 }
1733 /* The ndlp should not already be in active mode */
1734 if (NLP_CHK_NODE_ACT(ndlp)) {
1735 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
1736 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
1737 "0278 lpfc_enable_node: ndlp:x%p "
1738 "usgmap:x%x refcnt:%d\n",
1739 (void *)ndlp, ndlp->nlp_usg_map,
1740 atomic_read(&ndlp->kref.refcount));
1741 return NULL;
1742 }
1743
1744 /* Keep the original DID */
1745 did = ndlp->nlp_DID;
1746
1747 /* re-initialize ndlp except of ndlp linked list pointer */
1748 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
1749 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
1750 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
1751 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
1752 init_timer(&ndlp->nlp_delayfunc);
1753 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
1754 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
1755 ndlp->nlp_DID = did;
1756 ndlp->vport = vport;
1757 ndlp->nlp_sid = NLP_NO_SID;
1758 /* ndlp management re-initialize */
1759 kref_init(&ndlp->kref);
1760 NLP_INT_NODE_ACT(ndlp);
1761
1762 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
1763
1764 if (state != NLP_STE_UNUSED_NODE)
1765 lpfc_nlp_set_state(vport, ndlp, state);
1766
1767 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
1768 "node enable: did:x%x",
1769 ndlp->nlp_DID, 0, 0);
1770 return ndlp;
de0c5b32
JS		 1771}
1772
1773void
2e0fef85 1774lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 1775{
87af33fe 1776 /*
fa4066b6 1777 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
87af33fe 1778 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
fa4066b6
JS		 1779 * the ndlp from the vport. The ndlp marked as UNUSED on the list
1780 * until ALL other outstanding threads have completed. We check
1781 * that the ndlp not already in the UNUSED state before we proceed.
87af33fe 1782 */
fa4066b6
JS		 1783 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
1784 return;
51ef4c26 1785 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
87af33fe 1786 lpfc_nlp_put(ndlp);
98c9ea5c 1787 return;
dea3101e 1788}
1789
1790/*
1791 * Start / ReStart rescue timer for Discovery / RSCN handling
1792 */
1793void
2e0fef85 1794lpfc_set_disctmo(struct lpfc_vport *vport)
dea3101e 1795{
2e0fef85
JS		 1796 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1797 struct lpfc_hba *phba = vport->phba;
dea3101e 1798 uint32_t tmo;
1799
2e0fef85 1800 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
c9f8735b
JW		 1801 /* For FAN, timeout should be greater then edtov */
1802 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1803 } else {
1804 /* Normal discovery timeout should be > then ELS/CT timeout
1805 * FC spec states we need 3 * ratov for CT requests
1806 */
1807 tmo = ((phba->fc_ratov * 3) + 3);
1808 }
dea3101e 1809
858c9f6c
JS		 1810
1811 if (!timer_pending(&vport->fc_disctmo)) {
1812 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1813 "set disc timer: tmo:x%x state:x%x flg:x%x",
1814 tmo, vport->port_state, vport->fc_flag);
1815 }
1816
2e0fef85
JS		 1817 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
1818 spin_lock_irq(shost->host_lock);
1819 vport->fc_flag |= FC_DISC_TMO;
1820 spin_unlock_irq(shost->host_lock);
dea3101e 1821
1822 /* Start Discovery Timer state <hba_state> */
e8b62011
JS		 1823 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1824 "0247 Start Discovery Timer state x%x "
1825 "Data: x%x x%lx x%x x%x\n",
1826 vport->port_state, tmo,
1827 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
1828 vport->fc_adisc_cnt);
dea3101e 1829
1830 return;
1831}
1832
1833/*
1834 * Cancel rescue timer for Discovery / RSCN handling
1835 */
1836int
2e0fef85 1837lpfc_can_disctmo(struct lpfc_vport *vport)
dea3101e 1838{
2e0fef85 1839 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85
JS		 1840 unsigned long iflags;
1841
858c9f6c
JS		 1842 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1843 "can disc timer: state:x%x rtry:x%x flg:x%x",
1844 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
1845
dea3101e 1846 /* Turn off discovery timer if its running */
2e0fef85
JS		 1847 if (vport->fc_flag & FC_DISC_TMO) {
1848 spin_lock_irqsave(shost->host_lock, iflags);
1849 vport->fc_flag &= ~FC_DISC_TMO;
1850 spin_unlock_irqrestore(shost->host_lock, iflags);
1851 del_timer_sync(&vport->fc_disctmo);
1852 spin_lock_irqsave(&vport->work_port_lock, iflags);
1853 vport->work_port_events &= ~WORKER_DISC_TMO;
1854 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
dea3101e 1855 }
1856
1857 /* Cancel Discovery Timer state <hba_state> */
e8b62011
JS		 1858 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1859 "0248 Cancel Discovery Timer state x%x "
1860 "Data: x%x x%x x%x\n",
1861 vport->port_state, vport->fc_flag,
1862 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
2fe165b6 1863 return 0;
dea3101e 1864}
1865
1866/*
1867 * Check specified ring for outstanding IOCB on the SLI queue
1868 * Return true if iocb matches the specified nport
1869 */
1870int
2e0fef85
JS		 1871lpfc_check_sli_ndlp(struct lpfc_hba *phba,
1872 struct lpfc_sli_ring *pring,
1873 struct lpfc_iocbq *iocb,
1874 struct lpfc_nodelist *ndlp)
dea3101e 1875{
2e0fef85
JS		 1876 struct lpfc_sli *psli = &phba->sli;
1877 IOCB_t *icmd = &iocb->iocb;
92d7f7b0
JS		 1878 struct lpfc_vport *vport = ndlp->vport;
1879
1880 if (iocb->vport != vport)
1881 return 0;
1882
dea3101e 1883 if (pring->ringno == LPFC_ELS_RING) {
1884 switch (icmd->ulpCommand) {
1885 case CMD_GEN_REQUEST64_CR:
1886 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
2fe165b6 1887 return 1;
dea3101e 1888 case CMD_ELS_REQUEST64_CR:
10d4e957
JS		 1889 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1890 return 1;
dea3101e 1891 case CMD_XMIT_ELS_RSP64_CX:
1892 if (iocb->context1 == (uint8_t *) ndlp)
2fe165b6 1893 return 1;
dea3101e 1894 }
a4bc3379 1895 } else if (pring->ringno == psli->extra_ring) {
dea3101e 1896
1897 } else if (pring->ringno == psli->fcp_ring) {
1898 /* Skip match check if waiting to relogin to FCP target */
1899 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
92d7f7b0 1900 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
2fe165b6 1901 return 0;
dea3101e 1902 }
1903 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
2fe165b6 1904 return 1;
dea3101e 1905 }
1906 } else if (pring->ringno == psli->next_ring) {
1907
1908 }
2fe165b6 1909 return 0;
dea3101e 1910}
1911
1912/*
1913 * Free resources / clean up outstanding I/Os
1914 * associated with nlp_rpi in the LPFC_NODELIST entry.
1915 */
1916static int
2e0fef85 1917lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 1918{
2534ba75 1919 LIST_HEAD(completions);
dea3101e 1920 struct lpfc_sli *psli;
1921 struct lpfc_sli_ring *pring;
1922 struct lpfc_iocbq *iocb, *next_iocb;
1923 IOCB_t *icmd;
1924 uint32_t rpi, i;
1925
92d7f7b0
JS		 1926 lpfc_fabric_abort_nport(ndlp);
1927
dea3101e 1928 /*
1929 * Everything that matches on txcmplq will be returned
1930 * by firmware with a no rpi error.
1931 */
1932 psli = &phba->sli;
1933 rpi = ndlp->nlp_rpi;
1934 if (rpi) {
1935 /* Now process each ring */
1936 for (i = 0; i < psli->num_rings; i++) {
1937 pring = &psli->ring[i];
1938
2e0fef85 1939 spin_lock_irq(&phba->hbalock);
dea3101e 1940 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
2e0fef85 1941 list) {
dea3101e 1942 /*
1943 * Check to see if iocb matches the nport we are
1944 * looking for
1945 */
92d7f7b0
JS		 1946 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
1947 ndlp))) {
dea3101e 1948 /* It matches, so deque and call compl
1949 with an error */
2534ba75
JS		 1950 list_move_tail(&iocb->list,
1951 &completions);
dea3101e 1952 pring->txq_cnt--;
dea3101e 1953 }
1954 }
2e0fef85 1955 spin_unlock_irq(&phba->hbalock);
dea3101e 1956 }
1957 }
2534ba75
JS		 1958
1959 while (!list_empty(&completions)) {
1960 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
92d7f7b0 1961 list_del_init(&iocb->list);
2534ba75 1962
2e0fef85
JS		 1963 if (!iocb->iocb_cmpl)
1964 lpfc_sli_release_iocbq(phba, iocb);
1965 else {
2534ba75
JS		 1966 icmd = &iocb->iocb;
1967 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1968 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2e0fef85
JS		 1969 (iocb->iocb_cmpl)(phba, iocb, iocb);
1970 }
2534ba75
JS		 1971 }
1972
2fe165b6 1973 return 0;
dea3101e 1974}
1975
1976/*
1977 * Free rpi associated with LPFC_NODELIST entry.
1978 * This routine is called from lpfc_freenode(), when we are removing
1979 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1980 * LOGO that completes successfully, and we are waiting to PLOGI back
1981 * to the remote NPort. In addition, it is called after we receive
1982 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1983 * we are waiting to PLOGI back to the remote NPort.
1984 */
1985int
2e0fef85 1986lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1987{
2e0fef85
JS		 1988 struct lpfc_hba *phba = vport->phba;
1989 LPFC_MBOXQ_t *mbox;
dea3101e 1990 int rc;
1991
1992 if (ndlp->nlp_rpi) {
2e0fef85
JS		 1993 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1994 if (mbox) {
92d7f7b0 1995 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
ed957684 1996 mbox->vport = vport;
92d7f7b0 1997 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 1998 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
dea3101e 1999 if (rc == MBX_NOT_FINISHED)
2e0fef85 2000 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 2001 }
dea3101e 2002 lpfc_no_rpi(phba, ndlp);
2003 ndlp->nlp_rpi = 0;
2004 return 1;
2005 }
2006 return 0;
2007}
2008
92d7f7b0
JS		 2009void
2010lpfc_unreg_all_rpis(struct lpfc_vport *vport)
2011{
2012 struct lpfc_hba *phba = vport->phba;
2013 LPFC_MBOXQ_t *mbox;
2014 int rc;
2015
2016 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2017 if (mbox) {
2018 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
2019 mbox->vport = vport;
2020 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
09372820
JS		 2021 mbox->context1 = NULL;
2022 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
92d7f7b0
JS		 2023 if (rc == MBX_NOT_FINISHED) {
2024 mempool_free(mbox, phba->mbox_mem_pool);
2025 }
2026 }
2027}
2028
2029void
2030lpfc_unreg_default_rpis(struct lpfc_vport *vport)
2031{
2032 struct lpfc_hba *phba = vport->phba;
2033 LPFC_MBOXQ_t *mbox;
2034 int rc;
2035
2036 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2037 if (mbox) {
2038 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
2039 mbox->vport = vport;
2040 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
09372820
JS		 2041 mbox->context1 = NULL;
2042 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
92d7f7b0 2043 if (rc == MBX_NOT_FINISHED) {
e8b62011
JS		 2044 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
2045 "1815 Could not issue "
2046 "unreg_did (default rpis)\n");
92d7f7b0
JS		 2047 mempool_free(mbox, phba->mbox_mem_pool);
2048 }
2049 }
2050}
2051
dea3101e 2052/*
2053 * Free resources associated with LPFC_NODELIST entry
2054 * so it can be freed.
2055 */
2056static int
2e0fef85 2057lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 2058{
2e0fef85
JS		 2059 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2060 struct lpfc_hba *phba = vport->phba;
2061 LPFC_MBOXQ_t *mb, *nextmb;
dea3101e 2062 struct lpfc_dmabuf *mp;
dea3101e 2063
2064 /* Cleanup node for NPort <nlp_DID> */
e8b62011
JS		 2065 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2066 "0900 Cleanup node for NPort x%x "
2067 "Data: x%x x%x x%x\n",
2068 ndlp->nlp_DID, ndlp->nlp_flag,
2069 ndlp->nlp_state, ndlp->nlp_rpi);
e47c9093
JS		 2070 if (NLP_CHK_FREE_REQ(ndlp)) {
2071 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2072 "0280 lpfc_cleanup_node: ndlp:x%p "
2073 "usgmap:x%x refcnt:%d\n",
2074 (void *)ndlp, ndlp->nlp_usg_map,
2075 atomic_read(&ndlp->kref.refcount));
2076 lpfc_dequeue_node(vport, ndlp);
2077 } else {
2078 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2079 "0281 lpfc_cleanup_node: ndlp:x%p "
2080 "usgmap:x%x refcnt:%d\n",
2081 (void *)ndlp, ndlp->nlp_usg_map,
2082 atomic_read(&ndlp->kref.refcount));
2083 lpfc_disable_node(vport, ndlp);
2084 }
dea3101e 2085
dea3101e 2086 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
2087 if ((mb = phba->sli.mbox_active)) {
2088 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
2089 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
2090 mb->context2 = NULL;
2091 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2092 }
2093 }
33ccf8d1 2094
2e0fef85 2095 spin_lock_irq(&phba->hbalock);
dea3101e 2096 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
2097 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
92d7f7b0 2098 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
dea3101e 2099 mp = (struct lpfc_dmabuf *) (mb->context1);
2100 if (mp) {
2e0fef85 2101 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e 2102 kfree(mp);
2103 }
2104 list_del(&mb->list);
2105 mempool_free(mb, phba->mbox_mem_pool);
e47c9093
JS		 2106 /* We shall not invoke the lpfc_nlp_put to decrement
2107 * the ndlp reference count as we are in the process
2108 * of lpfc_nlp_release.
2109 */
dea3101e 2110 }
2111 }
2e0fef85 2112 spin_unlock_irq(&phba->hbalock);
dea3101e 2113
e47c9093
JS		 2114 lpfc_els_abort(phba, ndlp);
2115
2e0fef85 2116 spin_lock_irq(shost->host_lock);
c01f3208 2117 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
2e0fef85 2118 spin_unlock_irq(shost->host_lock);
dea3101e 2119
5024ab17 2120 ndlp->nlp_last_elscmd = 0;
dea3101e 2121 del_timer_sync(&ndlp->nlp_delayfunc);
2122
0d2b6b83
JS		 2123 list_del_init(&ndlp->els_retry_evt.evt_listp);
2124 list_del_init(&ndlp->dev_loss_evt.evt_listp);
dea3101e 2125
2e0fef85 2126 lpfc_unreg_rpi(vport, ndlp);
dea3101e 2127
2fe165b6 2128 return 0;
dea3101e 2129}
2130
2131/*
2132 * Check to see if we can free the nlp back to the freelist.
2133 * If we are in the middle of using the nlp in the discovery state
2134 * machine, defer the free till we reach the end of the state machine.
2135 */
329f9bc7 2136static void
2e0fef85 2137lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 2138{
a8adb832 2139 struct lpfc_hba *phba = vport->phba;
1dcb58e5 2140 struct lpfc_rport_data *rdata;
a8adb832
JS		 2141 LPFC_MBOXQ_t *mbox;
2142 int rc;
dea3101e 2143
0d2b6b83 2144 lpfc_cancel_retry_delay_tmo(vport, ndlp);
a8adb832
JS		 2145 if (ndlp->nlp_flag & NLP_DEFER_RM && !ndlp->nlp_rpi) {
2146 /* For this case we need to cleanup the default rpi
2147 * allocated by the firmware.
2148 */
2149 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
2150 != NULL) {
2151 rc = lpfc_reg_login(phba, vport->vpi, ndlp->nlp_DID,
2152 (uint8_t *) &vport->fc_sparam, mbox, 0);
2153 if (rc) {
2154 mempool_free(mbox, phba->mbox_mem_pool);
2155 }
2156 else {
2157 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
2158 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
2159 mbox->vport = vport;
09372820 2160 mbox->context2 = NULL;
a8adb832
JS		 2161 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2162 if (rc == MBX_NOT_FINISHED) {
2163 mempool_free(mbox, phba->mbox_mem_pool);
2164 }
2165 }
2166 }
2167 }
2e0fef85 2168 lpfc_cleanup_node(vport, ndlp);
1dcb58e5 2169
2e0fef85 2170 /*
92d7f7b0
JS		 2171 * We can get here with a non-NULL ndlp->rport because when we
2172 * unregister a rport we don't break the rport/node linkage. So if we
2173 * do, make sure we don't leaving any dangling pointers behind.
2e0fef85 2174 */
92d7f7b0 2175 if (ndlp->rport) {
329f9bc7
JS		 2176 rdata = ndlp->rport->dd_data;
2177 rdata->pnode = NULL;
2178 ndlp->rport = NULL;
dea3101e 2179 }
dea3101e 2180}
2181
2182static int
2e0fef85
JS		 2183lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2184 uint32_t did)
dea3101e 2185{
2e0fef85 2186 D_ID mydid, ndlpdid, matchdid;
dea3101e 2187
2188 if (did == Bcast_DID)
2fe165b6 2189 return 0;
dea3101e 2190
dea3101e 2191 /* First check for Direct match */
2192 if (ndlp->nlp_DID == did)
2fe165b6 2193 return 1;
dea3101e 2194
2195 /* Next check for area/domain identically equals 0 match */
2e0fef85 2196 mydid.un.word = vport->fc_myDID;
dea3101e 2197 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2fe165b6 2198 return 0;
dea3101e 2199 }
2200
2201 matchdid.un.word = did;
2202 ndlpdid.un.word = ndlp->nlp_DID;
2203 if (matchdid.un.b.id == ndlpdid.un.b.id) {
2204 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
2205 (mydid.un.b.area == matchdid.un.b.area)) {
2206 if ((ndlpdid.un.b.domain == 0) &&
2207 (ndlpdid.un.b.area == 0)) {
2208 if (ndlpdid.un.b.id)
2fe165b6 2209 return 1;
dea3101e 2210 }
2fe165b6 2211 return 0;
dea3101e 2212 }
2213
2214 matchdid.un.word = ndlp->nlp_DID;
2215 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
2216 (mydid.un.b.area == ndlpdid.un.b.area)) {
2217 if ((matchdid.un.b.domain == 0) &&
2218 (matchdid.un.b.area == 0)) {
2219 if (matchdid.un.b.id)
2fe165b6 2220 return 1;
dea3101e 2221 }
2222 }
2223 }
2fe165b6 2224 return 0;
dea3101e 2225}
2226
685f0bf7 2227/* Search for a nodelist entry */
2e0fef85
JS		 2228static struct lpfc_nodelist *
2229__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
dea3101e 2230{
2fb9bd8b 2231 struct lpfc_nodelist *ndlp;
dea3101e 2232 uint32_t data1;
2233
2e0fef85
JS		 2234 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2235 if (lpfc_matchdid(vport, ndlp, did)) {
685f0bf7
JS		 2236 data1 = (((uint32_t) ndlp->nlp_state << 24) |
2237 ((uint32_t) ndlp->nlp_xri << 16) |
2238 ((uint32_t) ndlp->nlp_type << 8) |
2239 ((uint32_t) ndlp->nlp_rpi & 0xff));
e8b62011
JS		 2240 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2241 "0929 FIND node DID "
2242 "Data: x%p x%x x%x x%x\n",
2243 ndlp, ndlp->nlp_DID,
2244 ndlp->nlp_flag, data1);
685f0bf7 2245 return ndlp;
dea3101e 2246 }
2247 }
66a9ed66 2248
dea3101e 2249 /* FIND node did <did> NOT FOUND */
e8b62011
JS		 2250 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2251 "0932 FIND node did x%x NOT FOUND.\n", did);
dea3101e 2252 return NULL;
2253}
2254
2255struct lpfc_nodelist *
2e0fef85
JS		 2256lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
2257{
2258 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2259 struct lpfc_nodelist *ndlp;
2260
2261 spin_lock_irq(shost->host_lock);
2262 ndlp = __lpfc_findnode_did(vport, did);
2263 spin_unlock_irq(shost->host_lock);
2264 return ndlp;
2265}
2266
2267struct lpfc_nodelist *
2268lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
dea3101e 2269{
2e0fef85 2270 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 2271 struct lpfc_nodelist *ndlp;
dea3101e 2272
2e0fef85 2273 ndlp = lpfc_findnode_did(vport, did);
c9f8735b 2274 if (!ndlp) {
2e0fef85
JS		 2275 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
2276 lpfc_rscn_payload_check(vport, did) == 0)
dea3101e 2277 return NULL;
2278 ndlp = (struct lpfc_nodelist *)
2e0fef85 2279 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
dea3101e 2280 if (!ndlp)
2281 return NULL;
2e0fef85
JS		 2282 lpfc_nlp_init(vport, ndlp, did);
2283 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2284 spin_lock_irq(shost->host_lock);
dea3101e 2285 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2286 spin_unlock_irq(shost->host_lock);
dea3101e 2287 return ndlp;
e47c9093
JS		 2288 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2289 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
2290 if (!ndlp)
2291 return NULL;
2292 spin_lock_irq(shost->host_lock);
2293 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2294 spin_unlock_irq(shost->host_lock);
2295 return ndlp;
dea3101e 2296 }
e47c9093 2297
58da1ffb
JS		 2298 if ((vport->fc_flag & FC_RSCN_MODE) &&
2299 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
2e0fef85 2300 if (lpfc_rscn_payload_check(vport, did)) {
87af33fe
JS		 2301 /* If we've already recieved a PLOGI from this NPort
2302 * we don't need to try to discover it again.
2303 */
2304 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
2305 return NULL;
2306
2e0fef85 2307 spin_lock_irq(shost->host_lock);
dea3101e 2308 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2309 spin_unlock_irq(shost->host_lock);
c9f8735b
JW		 2310
2311 /* Since this node is marked for discovery,
2312 * delay timeout is not needed.
2313 */
0d2b6b83 2314 lpfc_cancel_retry_delay_tmo(vport, ndlp);
071fbd3d 2315 } else
dea3101e 2316 ndlp = NULL;
2fe165b6 2317 } else {
87af33fe
JS		 2318 /* If we've already recieved a PLOGI from this NPort,
2319 * or we are already in the process of discovery on it,
2320 * we don't need to try to discover it again.
2321 */
685f0bf7 2322 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
87af33fe
JS		 2323 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
2324 ndlp->nlp_flag & NLP_RCV_PLOGI)
dea3101e 2325 return NULL;
2e0fef85
JS		 2326 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2327 spin_lock_irq(shost->host_lock);
dea3101e 2328 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2329 spin_unlock_irq(shost->host_lock);
dea3101e 2330 }
2331 return ndlp;
2332}
2333
2334/* Build a list of nodes to discover based on the loopmap */
2335void
2e0fef85 2336lpfc_disc_list_loopmap(struct lpfc_vport *vport)
dea3101e 2337{
2e0fef85 2338 struct lpfc_hba *phba = vport->phba;
dea3101e 2339 int j;
2340 uint32_t alpa, index;
2341
2e0fef85 2342 if (!lpfc_is_link_up(phba))
dea3101e 2343 return;
2e0fef85
JS		 2344
2345 if (phba->fc_topology != TOPOLOGY_LOOP)
dea3101e 2346 return;
dea3101e 2347
2348 /* Check for loop map present or not */
2349 if (phba->alpa_map[0]) {
2350 for (j = 1; j <= phba->alpa_map[0]; j++) {
2351 alpa = phba->alpa_map[j];
2e0fef85 2352 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
dea3101e 2353 continue;
2e0fef85 2354 lpfc_setup_disc_node(vport, alpa);
dea3101e 2355 }
2356 } else {
2357 /* No alpamap, so try all alpa's */
2358 for (j = 0; j < FC_MAXLOOP; j++) {
2359 /* If cfg_scan_down is set, start from highest
2360 * ALPA (0xef) to lowest (0x1).
2361 */
3de2a653 2362 if (vport->cfg_scan_down)
dea3101e 2363 index = j;
2364 else
2365 index = FC_MAXLOOP - j - 1;
2366 alpa = lpfcAlpaArray[index];
2e0fef85 2367 if ((vport->fc_myDID & 0xff) == alpa)
dea3101e 2368 continue;
2e0fef85 2369 lpfc_setup_disc_node(vport, alpa);
dea3101e 2370 }
2371 }
2372 return;
2373}
2374
dea3101e 2375void
2e0fef85 2376lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
dea3101e 2377{
dea3101e 2378 LPFC_MBOXQ_t *mbox;
2e0fef85
JS		 2379 struct lpfc_sli *psli = &phba->sli;
2380 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
2381 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
2382 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
2383 int rc;
2384
92d7f7b0
JS		 2385 /*
2386 * if it's not a physical port or if we already send
2387 * clear_la then don't send it.
2388 */
2389 if ((phba->link_state >= LPFC_CLEAR_LA) ||
2390 (vport->port_type != LPFC_PHYSICAL_PORT))
2391 return;
2392
2e0fef85
JS		 2393 /* Link up discovery */
2394 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
2395 phba->link_state = LPFC_CLEAR_LA;
2396 lpfc_clear_la(phba, mbox);
2397 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2398 mbox->vport = vport;
0b727fea 2399 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2e0fef85
JS		 2400 if (rc == MBX_NOT_FINISHED) {
2401 mempool_free(mbox, phba->mbox_mem_pool);
2402 lpfc_disc_flush_list(vport);
2403 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2404 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2405 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
92d7f7b0
JS		 2406 phba->link_state = LPFC_HBA_ERROR;
2407 }
2408 }
2409}
2410
2411/* Reg_vpi to tell firmware to resume normal operations */
2412void
2413lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
2414{
2415 LPFC_MBOXQ_t *regvpimbox;
2416
2417 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2418 if (regvpimbox) {
2419 lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, regvpimbox);
2420 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
2421 regvpimbox->vport = vport;
0b727fea 2422 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
92d7f7b0
JS		 2423 == MBX_NOT_FINISHED) {
2424 mempool_free(regvpimbox, phba->mbox_mem_pool);
2e0fef85
JS		 2425 }
2426 }
2427}
2428
2429/* Start Link up / RSCN discovery on NPR nodes */
2430void
2431lpfc_disc_start(struct lpfc_vport *vport)
2432{
2433 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2434 struct lpfc_hba *phba = vport->phba;
685f0bf7 2435 uint32_t num_sent;
dea3101e 2436 uint32_t clear_la_pending;
685f0bf7 2437 int did_changed;
dea3101e 2438
2e0fef85 2439 if (!lpfc_is_link_up(phba))
dea3101e 2440 return;
2e0fef85
JS		 2441
2442 if (phba->link_state == LPFC_CLEAR_LA)
dea3101e 2443 clear_la_pending = 1;
2444 else
2445 clear_la_pending = 0;
2446
2e0fef85
JS		 2447 if (vport->port_state < LPFC_VPORT_READY)
2448 vport->port_state = LPFC_DISC_AUTH;
dea3101e 2449
2e0fef85
JS		 2450 lpfc_set_disctmo(vport);
2451
2452 if (vport->fc_prevDID == vport->fc_myDID)
dea3101e 2453 did_changed = 0;
2e0fef85 2454 else
dea3101e 2455 did_changed = 1;
2e0fef85
JS		 2456
2457 vport->fc_prevDID = vport->fc_myDID;
2458 vport->num_disc_nodes = 0;
dea3101e 2459
2460 /* Start Discovery state <hba_state> */
e8b62011
JS		 2461 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2462 "0202 Start Discovery hba state x%x "
2463 "Data: x%x x%x x%x\n",
2464 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
2465 vport->fc_adisc_cnt);
dea3101e 2466
2467 /* First do ADISCs - if any */
2e0fef85 2468 num_sent = lpfc_els_disc_adisc(vport);
dea3101e 2469
2470 if (num_sent)
2471 return;
2472
92d7f7b0
JS		 2473 /*
2474 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
2475 * continue discovery.
2476 */
2477 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1b32f6aa 2478 !(vport->fc_flag & FC_PT2PT) &&
92d7f7b0
JS		 2479 !(vport->fc_flag & FC_RSCN_MODE)) {
2480 lpfc_issue_reg_vpi(phba, vport);
2481 return;
2482 }
2483
2484 /*
2485 * For SLI2, we need to set port_state to READY and continue
2486 * discovery.
2487 */
2e0fef85 2488 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
dea3101e 2489 /* If we get here, there is nothing to ADISC */
92d7f7b0 2490 if (vport->port_type == LPFC_PHYSICAL_PORT)
2e0fef85 2491 lpfc_issue_clear_la(phba, vport);
2e0fef85 2492
92d7f7b0 2493 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2e0fef85
JS		 2494 vport->num_disc_nodes = 0;
2495 /* go thru NPR nodes and issue ELS PLOGIs */
2496 if (vport->fc_npr_cnt)
2497 lpfc_els_disc_plogi(vport);
2498
2499 if (!vport->num_disc_nodes) {
2500 spin_lock_irq(shost->host_lock);
2501 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2502 spin_unlock_irq(shost->host_lock);
92d7f7b0 2503 lpfc_can_disctmo(vport);
dea3101e 2504 }
2505 }
92d7f7b0 2506 vport->port_state = LPFC_VPORT_READY;
dea3101e 2507 } else {
2508 /* Next do PLOGIs - if any */
2e0fef85 2509 num_sent = lpfc_els_disc_plogi(vport);
dea3101e 2510
2511 if (num_sent)
2512 return;
2513
2e0fef85 2514 if (vport->fc_flag & FC_RSCN_MODE) {
dea3101e 2515 /* Check to see if more RSCNs came in while we
2516 * were processing this one.
2517 */
2e0fef85
JS		 2518 if ((vport->fc_rscn_id_cnt == 0) &&
2519 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
2520 spin_lock_irq(shost->host_lock);
2521 vport->fc_flag &= ~FC_RSCN_MODE;
2522 spin_unlock_irq(shost->host_lock);
92d7f7b0 2523 lpfc_can_disctmo(vport);
2fe165b6 2524 } else
2e0fef85 2525 lpfc_els_handle_rscn(vport);
dea3101e 2526 }
2527 }
2528 return;
2529}
2530
2531/*
2532 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2533 * ring the match the sppecified nodelist.
2534 */
2535static void
2e0fef85 2536lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 2537{
2534ba75 2538 LIST_HEAD(completions);
dea3101e 2539 struct lpfc_sli *psli;
2540 IOCB_t *icmd;
2541 struct lpfc_iocbq *iocb, *next_iocb;
2542 struct lpfc_sli_ring *pring;
dea3101e 2543
2544 psli = &phba->sli;
2545 pring = &psli->ring[LPFC_ELS_RING];
2546
2547 /* Error matching iocb on txq or txcmplq
2548 * First check the txq.
2549 */
2e0fef85 2550 spin_lock_irq(&phba->hbalock);
dea3101e 2551 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2552 if (iocb->context1 != ndlp) {
2553 continue;
2554 }
2555 icmd = &iocb->iocb;
2556 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2557 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2558
2534ba75 2559 list_move_tail(&iocb->list, &completions);
dea3101e 2560 pring->txq_cnt--;
dea3101e 2561 }
2562 }
2563
2564 /* Next check the txcmplq */
2565 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2566 if (iocb->context1 != ndlp) {
2567 continue;
2568 }
2569 icmd = &iocb->iocb;
2e0fef85
JS		 2570 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
2571 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
2534ba75
JS		 2572 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
2573 }
2574 }
2e0fef85 2575 spin_unlock_irq(&phba->hbalock);
dea3101e 2576
2534ba75
JS		 2577 while (!list_empty(&completions)) {
2578 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
92d7f7b0 2579 list_del_init(&iocb->list);
dea3101e 2580
2e0fef85
JS		 2581 if (!iocb->iocb_cmpl)
2582 lpfc_sli_release_iocbq(phba, iocb);
2583 else {
2534ba75
JS		 2584 icmd = &iocb->iocb;
2585 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2586 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2587 (iocb->iocb_cmpl) (phba, iocb, iocb);
2e0fef85 2588 }
dea3101e 2589 }
dea3101e 2590}
2591
a6ababd2 2592static void
2e0fef85 2593lpfc_disc_flush_list(struct lpfc_vport *vport)
dea3101e 2594{
2595 struct lpfc_nodelist *ndlp, *next_ndlp;
2e0fef85 2596 struct lpfc_hba *phba = vport->phba;
dea3101e 2597
2e0fef85
JS		 2598 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
2599 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7 2600 nlp_listp) {
e47c9093
JS		 2601 if (!NLP_CHK_NODE_ACT(ndlp))
2602 continue;
685f0bf7
JS		 2603 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
2604 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
2605 lpfc_free_tx(phba, ndlp);
685f0bf7 2606 }
dea3101e 2607 }
2608 }
dea3101e 2609}
2610
92d7f7b0
JS		 2611void
2612lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
2613{
2614 lpfc_els_flush_rscn(vport);
2615 lpfc_els_flush_cmd(vport);
2616 lpfc_disc_flush_list(vport);
2617}
2618
dea3101e 2619/*****************************************************************************/
2620/*
2621 * NAME: lpfc_disc_timeout
2622 *
2623 * FUNCTION: Fibre Channel driver discovery timeout routine.
2624 *
2625 * EXECUTION ENVIRONMENT: interrupt only
2626 *
2627 * CALLED FROM:
2628 * Timer function
2629 *
2630 * RETURNS:
2631 * none
2632 */
2633/*****************************************************************************/
2634void
2635lpfc_disc_timeout(unsigned long ptr)
2636{
2e0fef85
JS		 2637 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
2638 struct lpfc_hba *phba = vport->phba;
dea3101e 2639 unsigned long flags = 0;
2640
2641 if (unlikely(!phba))
2642 return;
2643
2e0fef85
JS		 2644 if ((vport->work_port_events & WORKER_DISC_TMO) == 0) {
2645 spin_lock_irqsave(&vport->work_port_lock, flags);
2646 vport->work_port_events |= WORKER_DISC_TMO;
2647 spin_unlock_irqrestore(&vport->work_port_lock, flags);
2648
92d7f7b0 2649 spin_lock_irqsave(&phba->hbalock, flags);
dea3101e 2650 if (phba->work_wait)
92d7f7b0
JS		 2651 lpfc_worker_wake_up(phba);
2652 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e 2653 }
dea3101e 2654 return;
2655}
2656
2657static void
2e0fef85 2658lpfc_disc_timeout_handler(struct lpfc_vport *vport)
dea3101e 2659{
2e0fef85
JS		 2660 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2661 struct lpfc_hba *phba = vport->phba;
2662 struct lpfc_sli *psli = &phba->sli;
c9f8735b 2663 struct lpfc_nodelist *ndlp, *next_ndlp;
92d7f7b0 2664 LPFC_MBOXQ_t *initlinkmbox;
dea3101e 2665 int rc, clrlaerr = 0;
2666
2e0fef85 2667 if (!(vport->fc_flag & FC_DISC_TMO))
dea3101e 2668 return;
2669
2e0fef85
JS		 2670 spin_lock_irq(shost->host_lock);
2671 vport->fc_flag &= ~FC_DISC_TMO;
2672 spin_unlock_irq(shost->host_lock);
dea3101e 2673
858c9f6c
JS		 2674 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2675 "disc timeout: state:x%x rtry:x%x flg:x%x",
2676 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
2677
2e0fef85 2678 switch (vport->port_state) {
dea3101e 2679
2680 case LPFC_LOCAL_CFG_LINK:
2e0fef85
JS		 2681 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
2682 * FAN
2683 */
2684 /* FAN timeout */
e8b62011
JS		 2685 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
2686 "0221 FAN timeout\n");
c9f8735b 2687 /* Start discovery by sending FLOGI, clean up old rpis */
2e0fef85 2688 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7 2689 nlp_listp) {
e47c9093
JS		 2690 if (!NLP_CHK_NODE_ACT(ndlp))
2691 continue;
685f0bf7
JS		 2692 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
2693 continue;
c9f8735b
JW		 2694 if (ndlp->nlp_type & NLP_FABRIC) {
2695 /* Clean up the ndlp on Fabric connections */
2e0fef85 2696 lpfc_drop_node(vport, ndlp);
87af33fe 2697
2fe165b6 2698 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
c9f8735b
JW		 2699 /* Fail outstanding IO now since device
2700 * is marked for PLOGI.
2701 */
2e0fef85 2702 lpfc_unreg_rpi(vport, ndlp);
c9f8735b
JW		 2703 }
2704 }
92d7f7b0 2705 if (vport->port_state != LPFC_FLOGI) {
92d7f7b0 2706 lpfc_initial_flogi(vport);
0ff10d46 2707 return;
92d7f7b0 2708 }
dea3101e 2709 break;
2710
92d7f7b0 2711 case LPFC_FDISC:
dea3101e 2712 case LPFC_FLOGI:
2e0fef85 2713 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
dea3101e 2714 /* Initial FLOGI timeout */
e8b62011
JS		 2715 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2716 "0222 Initial %s timeout\n",
87af33fe 2717 vport->vpi ? "FDISC" : "FLOGI");
dea3101e 2718
2719 /* Assume no Fabric and go on with discovery.
2720 * Check for outstanding ELS FLOGI to abort.
2721 */
2722
2723 /* FLOGI failed, so just use loop map to make discovery list */
2e0fef85 2724 lpfc_disc_list_loopmap(vport);
dea3101e 2725
2726 /* Start discovery */
2e0fef85 2727 lpfc_disc_start(vport);
dea3101e 2728 break;
2729
2730 case LPFC_FABRIC_CFG_LINK:
2731 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2732 NameServer login */
e8b62011
JS		 2733 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2734 "0223 Timeout while waiting for "
2735 "NameServer login\n");
dea3101e 2736 /* Next look for NameServer ndlp */
2e0fef85 2737 ndlp = lpfc_findnode_did(vport, NameServer_DID);
e47c9093 2738 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
87af33fe
JS		 2739 lpfc_els_abort(phba, ndlp);
2740
2741 /* ReStart discovery */
2742 goto restart_disc;
dea3101e 2743
2744 case LPFC_NS_QRY:
2745 /* Check for wait for NameServer Rsp timeout */
e8b62011
JS		 2746 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2747 "0224 NameServer Query timeout "
2748 "Data: x%x x%x\n",
2749 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e 2750
92d7f7b0
JS		 2751 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2752 /* Try it one more time */
2753 vport->fc_ns_retry++;
2754 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
2755 vport->fc_ns_retry, 0);
2756 if (rc == 0)
2757 break;
dea3101e 2758 }
92d7f7b0 2759 vport->fc_ns_retry = 0;
dea3101e 2760
87af33fe 2761restart_disc:
92d7f7b0
JS		 2762 /*
2763 * Discovery is over.
2764 * set port_state to PORT_READY if SLI2.
2765 * cmpl_reg_vpi will set port_state to READY for SLI3.
2766 */
2767 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2768 lpfc_issue_reg_vpi(phba, vport);
2769 else { /* NPIV Not enabled */
2770 lpfc_issue_clear_la(phba, vport);
2771 vport->port_state = LPFC_VPORT_READY;
dea3101e 2772 }
2773
2774 /* Setup and issue mailbox INITIALIZE LINK command */
2775 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2776 if (!initlinkmbox) {
e8b62011
JS		 2777 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2778 "0206 Device Discovery "
2779 "completion error\n");
2e0fef85 2780 phba->link_state = LPFC_HBA_ERROR;
dea3101e 2781 break;
2782 }
2783
2784 lpfc_linkdown(phba);
2785 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2786 phba->cfg_link_speed);
2787 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
ed957684 2788 initlinkmbox->vport = vport;
92d7f7b0 2789 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 2790 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
5b8bd0c9 2791 lpfc_set_loopback_flag(phba);
dea3101e 2792 if (rc == MBX_NOT_FINISHED)
2793 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2794
2795 break;
2796
2797 case LPFC_DISC_AUTH:
2798 /* Node Authentication timeout */
e8b62011
JS		 2799 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2800 "0227 Node Authentication timeout\n");
2e0fef85
JS		 2801 lpfc_disc_flush_list(vport);
2802
92d7f7b0
JS		 2803 /*
2804 * set port_state to PORT_READY if SLI2.
2805 * cmpl_reg_vpi will set port_state to READY for SLI3.
2806 */
2807 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2808 lpfc_issue_reg_vpi(phba, vport);
2809 else { /* NPIV Not enabled */
2810 lpfc_issue_clear_la(phba, vport);
2811 vport->port_state = LPFC_VPORT_READY;
dea3101e 2812 }
2813 break;
2814
2e0fef85
JS		 2815 case LPFC_VPORT_READY:
2816 if (vport->fc_flag & FC_RSCN_MODE) {
e8b62011
JS		 2817 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2818 "0231 RSCN timeout Data: x%x "
2819 "x%x\n",
2820 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e 2821
2822 /* Cleanup any outstanding ELS commands */
2e0fef85 2823 lpfc_els_flush_cmd(vport);
dea3101e 2824
2e0fef85
JS		 2825 lpfc_els_flush_rscn(vport);
2826 lpfc_disc_flush_list(vport);
dea3101e 2827 }
2828 break;
2e0fef85 2829
92d7f7b0 2830 default:
e8b62011
JS		 2831 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2832 "0229 Unexpected discovery timeout, "
2833 "vport State x%x\n", vport->port_state);
2e0fef85
JS		 2834 break;
2835 }
2836
2837 switch (phba->link_state) {
2838 case LPFC_CLEAR_LA:
92d7f7b0 2839 /* CLEAR LA timeout */
e8b62011
JS		 2840 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2841 "0228 CLEAR LA timeout\n");
2e0fef85
JS		 2842 clrlaerr = 1;
2843 break;
2844
09372820
JS		 2845 case LPFC_LINK_UP:
2846 lpfc_issue_clear_la(phba, vport);
2847 /* Drop thru */
2e0fef85
JS		 2848 case LPFC_LINK_UNKNOWN:
2849 case LPFC_WARM_START:
2850 case LPFC_INIT_START:
2851 case LPFC_INIT_MBX_CMDS:
2852 case LPFC_LINK_DOWN:
2e0fef85 2853 case LPFC_HBA_ERROR:
e8b62011
JS		 2854 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2855 "0230 Unexpected timeout, hba link "
2856 "state x%x\n", phba->link_state);
2e0fef85
JS		 2857 clrlaerr = 1;
2858 break;
92d7f7b0
JS		 2859
2860 case LPFC_HBA_READY:
2861 break;
dea3101e 2862 }
2863
2864 if (clrlaerr) {
2e0fef85 2865 lpfc_disc_flush_list(vport);
a4bc3379 2866 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e 2867 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2868 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2e0fef85 2869 vport->port_state = LPFC_VPORT_READY;
dea3101e 2870 }
2871
2872 return;
2873}
2874
dea3101e 2875/*
2876 * This routine handles processing a NameServer REG_LOGIN mailbox
2877 * command upon completion. It is setup in the LPFC_MBOXQ
2878 * as the completion routine when the command is
2879 * handed off to the SLI layer.
2880 */
2881void
2e0fef85 2882lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 2883{
2e0fef85
JS		 2884 MAILBOX_t *mb = &pmb->mb;
2885 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2886 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2887 struct lpfc_vport *vport = pmb->vport;
dea3101e 2888
2889 pmb->context1 = NULL;
2890
dea3101e 2891 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 2892 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 2893 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 2894
2e0fef85
JS		 2895 /*
2896 * Start issuing Fabric-Device Management Interface (FDMI) command to
2897 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
2898 * fdmi-on=2 (supporting RPA/hostnmae)
dea3101e 2899 */
2e0fef85 2900
3de2a653 2901 if (vport->cfg_fdmi_on == 1)
2e0fef85
JS		 2902 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
2903 else
2904 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
dea3101e 2905
fa4066b6
JS		 2906 /* decrement the node reference count held for this callback
2907 * function.
2908 */
329f9bc7 2909 lpfc_nlp_put(ndlp);
dea3101e 2910 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2911 kfree(mp);
329f9bc7 2912 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 2913
2914 return;
2915}
2916
685f0bf7
JS		 2917static int
2918lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
2919{
2920 uint16_t *rpi = param;
2921
2922 return ndlp->nlp_rpi == *rpi;
2923}
2924
2925static int
2926lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
2927{
2928 return memcmp(&ndlp->nlp_portname, param,
2929 sizeof(ndlp->nlp_portname)) == 0;
2930}
2931
a6ababd2 2932static struct lpfc_nodelist *
2e0fef85 2933__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
dea3101e 2934{
21568f53 2935 struct lpfc_nodelist *ndlp;
dea3101e 2936
2e0fef85 2937 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
87af33fe 2938 if (filter(ndlp, param))
685f0bf7
JS		 2939 return ndlp;
2940 }
21568f53 2941 return NULL;
dea3101e 2942}
2943
685f0bf7
JS		 2944/*
2945 * This routine looks up the ndlp lists for the given RPI. If rpi found it
2e0fef85 2946 * returns the node list element pointer else return NULL.
685f0bf7
JS		 2947 */
2948struct lpfc_nodelist *
2e0fef85 2949__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
685f0bf7 2950{
2e0fef85 2951 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
685f0bf7
JS		 2952}
2953
488d1469 2954/*
685f0bf7 2955 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
2e0fef85 2956 * returns the node element list pointer else return NULL.
488d1469
JS		 2957 */
2958struct lpfc_nodelist *
2e0fef85 2959lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
488d1469 2960{
2e0fef85 2961 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
488d1469 2962 struct lpfc_nodelist *ndlp;
488d1469 2963
2e0fef85
JS		 2964 spin_lock_irq(shost->host_lock);
2965 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
2966 spin_unlock_irq(shost->host_lock);
858c9f6c 2967 return ndlp;
488d1469
JS		 2968}
2969
dea3101e 2970void
2e0fef85
JS		 2971lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2972 uint32_t did)
dea3101e 2973{
2974 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
dea3101e 2975 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
92d7f7b0 2976 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
dea3101e 2977 init_timer(&ndlp->nlp_delayfunc);
2978 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2979 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2980 ndlp->nlp_DID = did;
2e0fef85 2981 ndlp->vport = vport;
dea3101e 2982 ndlp->nlp_sid = NLP_NO_SID;
685f0bf7 2983 INIT_LIST_HEAD(&ndlp->nlp_listp);
329f9bc7 2984 kref_init(&ndlp->kref);
e47c9093 2985 NLP_INT_NODE_ACT(ndlp);
858c9f6c
JS		 2986
2987 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2988 "node init: did:x%x",
2989 ndlp->nlp_DID, 0, 0);
2990
dea3101e 2991 return;
2992}
329f9bc7 2993
98c9ea5c
JS		 2994/* This routine releases all resources associated with a specifc NPort's ndlp
2995 * and mempool_free's the nodelist.
2996 */
311464ec 2997static void
329f9bc7
JS		 2998lpfc_nlp_release(struct kref *kref)
2999{
e47c9093
JS		 3000 struct lpfc_hba *phba;
3001 unsigned long flags;
329f9bc7
JS		 3002 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
3003 kref);
858c9f6c
JS		 3004
3005 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
3006 "node release: did:x%x flg:x%x type:x%x",
3007 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3008
e47c9093
JS		 3009 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3010 "0279 lpfc_nlp_release: ndlp:x%p "
3011 "usgmap:x%x refcnt:%d\n",
3012 (void *)ndlp, ndlp->nlp_usg_map,
3013 atomic_read(&ndlp->kref.refcount));
3014
3015 /* remove ndlp from action. */
2e0fef85 3016 lpfc_nlp_remove(ndlp->vport, ndlp);
e47c9093
JS		 3017
3018 /* clear the ndlp active flag for all release cases */
3019 phba = ndlp->vport->phba;
3020 spin_lock_irqsave(&phba->ndlp_lock, flags);
3021 NLP_CLR_NODE_ACT(ndlp);
3022 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3023
3024 /* free ndlp memory for final ndlp release */
3025 if (NLP_CHK_FREE_REQ(ndlp))
3026 mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool);
329f9bc7
JS		 3027}
3028
98c9ea5c
JS		 3029/* This routine bumps the reference count for a ndlp structure to ensure
3030 * that one discovery thread won't free a ndlp while another discovery thread
3031 * is using it.
3032 */
329f9bc7
JS		 3033struct lpfc_nodelist *
3034lpfc_nlp_get(struct lpfc_nodelist *ndlp)
3035{
e47c9093
JS		 3036 struct lpfc_hba *phba;
3037 unsigned long flags;
3038
98c9ea5c
JS		 3039 if (ndlp) {
3040 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
3041 "node get: did:x%x flg:x%x refcnt:x%x",
3042 ndlp->nlp_DID, ndlp->nlp_flag,
3043 atomic_read(&ndlp->kref.refcount));
e47c9093
JS		 3044 /* The check of ndlp usage to prevent incrementing the
3045 * ndlp reference count that is in the process of being
3046 * released.
3047 */
3048 phba = ndlp->vport->phba;
3049 spin_lock_irqsave(&phba->ndlp_lock, flags);
3050 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
3051 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3052 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
3053 "0276 lpfc_nlp_get: ndlp:x%p "
3054 "usgmap:x%x refcnt:%d\n",
3055 (void *)ndlp, ndlp->nlp_usg_map,
3056 atomic_read(&ndlp->kref.refcount));
3057 return NULL;
3058 } else
3059 kref_get(&ndlp->kref);
3060 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
98c9ea5c 3061 }
329f9bc7
JS		 3062 return ndlp;
3063}
3064
98c9ea5c 3065/* This routine decrements the reference count for a ndlp structure. If the
e47c9093
JS		 3066 * count goes to 0, this indicates the the associated nodelist should be
3067 * freed. Returning 1 indicates the ndlp resource has been released; on the
3068 * other hand, returning 0 indicates the ndlp resource has not been released
3069 * yet.
98c9ea5c 3070 */
329f9bc7
JS		 3071int
3072lpfc_nlp_put(struct lpfc_nodelist *ndlp)
3073{
e47c9093
JS		 3074 struct lpfc_hba *phba;
3075 unsigned long flags;
3076
3077 if (!ndlp)
3078 return 1;
3079
3080 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
3081 "node put: did:x%x flg:x%x refcnt:x%x",
3082 ndlp->nlp_DID, ndlp->nlp_flag,
3083 atomic_read(&ndlp->kref.refcount));
3084 phba = ndlp->vport->phba;
3085 spin_lock_irqsave(&phba->ndlp_lock, flags);
3086 /* Check the ndlp memory free acknowledge flag to avoid the
3087 * possible race condition that kref_put got invoked again
3088 * after previous one has done ndlp memory free.
3089 */
3090 if (NLP_CHK_FREE_ACK(ndlp)) {
3091 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3092 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
3093 "0274 lpfc_nlp_put: ndlp:x%p "
3094 "usgmap:x%x refcnt:%d\n",
3095 (void *)ndlp, ndlp->nlp_usg_map,
3096 atomic_read(&ndlp->kref.refcount));
3097 return 1;
3098 }
3099 /* Check the ndlp inactivate log flag to avoid the possible
3100 * race condition that kref_put got invoked again after ndlp
3101 * is already in inactivating state.
3102 */
3103 if (NLP_CHK_IACT_REQ(ndlp)) {
3104 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3105 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
3106 "0275 lpfc_nlp_put: ndlp:x%p "
3107 "usgmap:x%x refcnt:%d\n",
3108 (void *)ndlp, ndlp->nlp_usg_map,
3109 atomic_read(&ndlp->kref.refcount));
3110 return 1;
98c9ea5c 3111 }
e47c9093
JS		 3112 /* For last put, mark the ndlp usage flags to make sure no
3113 * other kref_get and kref_put on the same ndlp shall get
3114 * in between the process when the final kref_put has been
3115 * invoked on this ndlp.
3116 */
3117 if (atomic_read(&ndlp->kref.refcount) == 1) {
3118 /* Indicate ndlp is put to inactive state. */
3119 NLP_SET_IACT_REQ(ndlp);
3120 /* Acknowledge ndlp memory free has been seen. */
3121 if (NLP_CHK_FREE_REQ(ndlp))
3122 NLP_SET_FREE_ACK(ndlp);
3123 }
3124 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3125 /* Note, the kref_put returns 1 when decrementing a reference
3126 * count that was 1, it invokes the release callback function,
3127 * but it still left the reference count as 1 (not actually
3128 * performs the last decrementation). Otherwise, it actually
3129 * decrements the reference count and returns 0.
3130 */
3131 return kref_put(&ndlp->kref, lpfc_nlp_release);
329f9bc7 3132}
98c9ea5c
JS		 3133
3134/* This routine free's the specified nodelist if it is not in use
e47c9093
JS		 3135 * by any other discovery thread. This routine returns 1 if the
3136 * ndlp has been freed. A return value of 0 indicates the ndlp is
3137 * not yet been released.
98c9ea5c
JS		 3138 */
3139int
3140lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
3141{
3142 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
3143 "node not used: did:x%x flg:x%x refcnt:x%x",
3144 ndlp->nlp_DID, ndlp->nlp_flag,
3145 atomic_read(&ndlp->kref.refcount));
e47c9093
JS		 3146 if (atomic_read(&ndlp->kref.refcount) == 1)
3147 if (lpfc_nlp_put(ndlp))
3148 return 1;
98c9ea5c
JS		 3149 return 0;
3150}
Linux kernel - Deliverables
This page took 0.63433 seconds and 5 git commands to generate.