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[SCSI] ips: fix data buffer accessors conversion bug
[net-next-2.6.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
CommitLineData
dea3101e
JB		 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
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
JB		 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e
JB		 20 *******************************************************************/
21
dea3101e
JB		 22#include <linux/blkdev.h>
23#include <linux/pci.h>
24#include <linux/kthread.h>
25#include <linux/interrupt.h>
26
91886523 27#include <scsi/scsi.h>
dea3101e
JB		 28#include <scsi/scsi_device.h>
29#include <scsi/scsi_host.h>
30#include <scsi/scsi_transport_fc.h>
31
32#include "lpfc_hw.h"
33#include "lpfc_disc.h"
34#include "lpfc_sli.h"
35#include "lpfc_scsi.h"
36#include "lpfc.h"
37#include "lpfc_logmsg.h"
38#include "lpfc_crtn.h"
92d7f7b0 39#include "lpfc_vport.h"
858c9f6c 40#include "lpfc_debugfs.h"
dea3101e
JB		 41
42/* AlpaArray for assignment of scsid for scan-down and bind_method */
43static uint8_t lpfcAlpaArray[] = {
44 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
45 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
46 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
47 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
48 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
49 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
50 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
51 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
52 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
53 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
54 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
55 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
56 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
57};
58
2e0fef85 59static void lpfc_disc_timeout_handler(struct lpfc_vport *);
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
72 if (!ndlp) {
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
JB		 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;
09372820 117 if (!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 "
246 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
247 "NPort x%x Data: x%x x%x x%x\n",
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 "
255 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
256 "NPort x%x Data: x%x x%x x%x\n",
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
JB		 284 return;
285}
286
287static void
2e0fef85 288lpfc_work_list_done(struct lpfc_hba *phba)
dea3101e
JB		 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
JB		 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
JB		 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
JB		 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
JB		 364
365}
366
311464ec 367static void
2e0fef85 368lpfc_work_done(struct lpfc_hba *phba)
dea3101e
JB		 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
JB		 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
JB		 382 lpfc_handle_eratt(phba);
383
2fe165b6 384 if (ha_copy & HA_MBATT)
dea3101e
JB		 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;
402 work_port_events = vport->work_port_events;
549e55cd 403 if (work_port_events & WORKER_DISC_TMO)
51ef4c26 404 lpfc_disc_timeout_handler(vport);
549e55cd 405 if (work_port_events & WORKER_ELS_TMO)
51ef4c26 406 lpfc_els_timeout_handler(vport);
549e55cd
JS		 407 if (work_port_events & WORKER_HB_TMO)
408 lpfc_hb_timeout_handler(phba);
409 if (work_port_events & WORKER_MBOX_TMO)
410 lpfc_mbox_timeout_handler(phba);
411 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
412 lpfc_unblock_fabric_iocbs(phba);
413 if (work_port_events & WORKER_FDMI_TMO)
51ef4c26 414 lpfc_fdmi_timeout_handler(vport);
549e55cd
JS		 415 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
416 lpfc_ramp_down_queue_handler(phba);
417 if (work_port_events & WORKER_RAMP_UP_QUEUE)
418 lpfc_ramp_up_queue_handler(phba);
51ef4c26
JS		 419 spin_lock_irq(&vport->work_port_lock);
420 vport->work_port_events &= ~work_port_events;
421 spin_unlock_irq(&vport->work_port_lock);
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 {
433 lpfc_sli_handle_slow_ring_event(phba, pring,
434 (status &
435 HA_RXMASK));
436 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
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
JB		 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
JB		 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
JB		 484}
485
92d7f7b0 486
dea3101e
JB		 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
JB		 493
494 set_user_nice(current, -20);
495 phba->work_wait = &work_waitq;
92d7f7b0 496 phba->work_found = 0;
dea3101e
JB		 497
498 while (1) {
499
500 rc = wait_event_interruptible(work_waitq,
92d7f7b0
JS		 501 check_work_wait_done(phba));
502
dea3101e
JB		 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
JB		 521 }
522 phba->work_wait = NULL;
523 return 0;
524}
525
526/*
527 * This is only called to handle FC worker events. Since this a rare
528 * occurance, we allocate a struct lpfc_work_evt structure here instead of
529 * embedding it in the IOCB.
530 */
531int
2e0fef85 532lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
dea3101e
JB		 533 uint32_t evt)
534{
535 struct lpfc_work_evt *evtp;
ed957684 536 unsigned long flags;
dea3101e
JB		 537
538 /*
539 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
540 * be queued to worker thread for processing
541 */
92d7f7b0 542 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
dea3101e
JB		 543 if (!evtp)
544 return 0;
545
546 evtp->evt_arg1 = arg1;
547 evtp->evt_arg2 = arg2;
548 evtp->evt = evt;
549
ed957684 550 spin_lock_irqsave(&phba->hbalock, flags);
071fbd3d 551 list_add_tail(&evtp->evt_listp, &phba->work_list);
dea3101e 552 if (phba->work_wait)
92d7f7b0 553 lpfc_worker_wake_up(phba);
ed957684 554 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e
JB		 555
556 return 1;
557}
558
92d7f7b0
JS		 559void
560lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
561{
09372820 562 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0
JS		 563 struct lpfc_hba *phba = vport->phba;
564 struct lpfc_nodelist *ndlp, *next_ndlp;
565 int rc;
566
567 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 568 if (!NLP_CHK_NODE_ACT(ndlp))
569 continue;
92d7f7b0
JS		 570 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
571 continue;
98c9ea5c
JS		 572 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
573 ((vport->port_type == LPFC_NPIV_PORT) &&
574 (ndlp->nlp_DID == NameServer_DID)))
92d7f7b0
JS		 575 lpfc_unreg_rpi(vport, ndlp);
576
577 /* Leave Fabric nodes alone on link down */
578 if (!remove && ndlp->nlp_type & NLP_FABRIC)
579 continue;
580 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
581 remove
582 ? NLP_EVT_DEVICE_RM
583 : NLP_EVT_DEVICE_RECOVERY);
584 }
585 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
586 lpfc_mbx_unreg_vpi(vport);
09372820 587 spin_lock_irq(shost->host_lock);
92d7f7b0 588 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
09372820 589 spin_unlock_irq(shost->host_lock);
92d7f7b0
JS		 590 }
591}
592
87af33fe 593void
98c9ea5c 594lpfc_port_link_failure(struct lpfc_vport *vport)
92d7f7b0 595{
92d7f7b0
JS		 596 /* Cleanup any outstanding RSCN activity */
597 lpfc_els_flush_rscn(vport);
598
599 /* Cleanup any outstanding ELS commands */
600 lpfc_els_flush_cmd(vport);
601
602 lpfc_cleanup_rpis(vport, 0);
603
92d7f7b0
JS		 604 /* Turn off discovery timer if its running */
605 lpfc_can_disctmo(vport);
606}
607
98c9ea5c
JS		 608static void
609lpfc_linkdown_port(struct lpfc_vport *vport)
610{
611 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
612
613 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
614
615 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
616 "Link Down: state:x%x rtry:x%x flg:x%x",
617 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
618
619 lpfc_port_link_failure(vport);
620
621}
622
dea3101e 623int
685f0bf7 624lpfc_linkdown(struct lpfc_hba *phba)
dea3101e 625{
2e0fef85
JS		 626 struct lpfc_vport *vport = phba->pport;
627 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
549e55cd 628 struct lpfc_vport **vports;
685f0bf7 629 LPFC_MBOXQ_t *mb;
549e55cd 630 int i;
dea3101e 631
3163f725 632 if (phba->link_state == LPFC_LINK_DOWN)
2e0fef85 633 return 0;
2e0fef85 634 spin_lock_irq(&phba->hbalock);
92d7f7b0 635 if (phba->link_state > LPFC_LINK_DOWN) {
2e0fef85 636 phba->link_state = LPFC_LINK_DOWN;
92d7f7b0
JS		 637 phba->pport->fc_flag &= ~FC_LBIT;
638 }
2e0fef85 639 spin_unlock_irq(&phba->hbalock);
549e55cd
JS		 640 vports = lpfc_create_vport_work_array(phba);
641 if (vports != NULL)
09372820 642 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
549e55cd
JS		 643 /* Issue a LINK DOWN event to all nodes */
644 lpfc_linkdown_port(vports[i]);
645 }
09372820 646 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 647 /* Clean up any firmware default rpi's */
2e0fef85
JS		 648 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
649 if (mb) {
92d7f7b0 650 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
ed957684 651 mb->vport = vport;
2e0fef85 652 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 653 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
dea3101e 654 == MBX_NOT_FINISHED) {
2e0fef85 655 mempool_free(mb, phba->mbox_mem_pool);
dea3101e
JB		 656 }
657 }
658
dea3101e 659 /* Setup myDID for link up if we are in pt2pt mode */
92d7f7b0
JS		 660 if (phba->pport->fc_flag & FC_PT2PT) {
661 phba->pport->fc_myDID = 0;
2e0fef85
JS		 662 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
663 if (mb) {
dea3101e 664 lpfc_config_link(phba, mb);
92d7f7b0 665 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
ed957684 666 mb->vport = vport;
0b727fea 667 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
dea3101e 668 == MBX_NOT_FINISHED) {
2e0fef85 669 mempool_free(mb, phba->mbox_mem_pool);
dea3101e
JB		 670 }
671 }
2e0fef85 672 spin_lock_irq(shost->host_lock);
92d7f7b0 673 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
2e0fef85 674 spin_unlock_irq(shost->host_lock);
dea3101e 675 }
2e0fef85 676
92d7f7b0
JS		 677 return 0;
678}
dea3101e 679
92d7f7b0
JS		 680static void
681lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
682{
683 struct lpfc_nodelist *ndlp;
dea3101e 684
92d7f7b0 685 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 686 if (!NLP_CHK_NODE_ACT(ndlp))
687 continue;
92d7f7b0
JS		 688 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
689 continue;
92d7f7b0 690 if (ndlp->nlp_type & NLP_FABRIC) {
e47c9093
JS		 691 /* On Linkup its safe to clean up the ndlp
692 * from Fabric connections.
693 */
92d7f7b0
JS		 694 if (ndlp->nlp_DID != Fabric_DID)
695 lpfc_unreg_rpi(vport, ndlp);
696 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
697 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
e47c9093
JS		 698 /* Fail outstanding IO now since device is
699 * marked for PLOGI.
700 */
92d7f7b0
JS		 701 lpfc_unreg_rpi(vport, ndlp);
702 }
703 }
dea3101e
JB		 704}
705
92d7f7b0
JS		 706static void
707lpfc_linkup_port(struct lpfc_vport *vport)
dea3101e 708{
92d7f7b0 709 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
92d7f7b0
JS		 710 struct lpfc_hba *phba = vport->phba;
711
712 if ((vport->load_flag & FC_UNLOADING) != 0)
713 return;
714
858c9f6c
JS		 715 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
716 "Link Up: top:x%x speed:x%x flg:x%x",
717 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
718
92d7f7b0
JS		 719 /* If NPIV is not enabled, only bring the physical port up */
720 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
721 (vport != phba->pport))
722 return;
dea3101e 723
2e0fef85 724 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
d2873e4c 725
2e0fef85 726 spin_lock_irq(shost->host_lock);
2e0fef85
JS		 727 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
728 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
729 vport->fc_flag |= FC_NDISC_ACTIVE;
730 vport->fc_ns_retry = 0;
731 spin_unlock_irq(shost->host_lock);
dea3101e 732
92d7f7b0
JS		 733 if (vport->fc_flag & FC_LBIT)
734 lpfc_linkup_cleanup_nodes(vport);
dea3101e 735
92d7f7b0
JS		 736}
737
738static int
739lpfc_linkup(struct lpfc_hba *phba)
740{
549e55cd
JS		 741 struct lpfc_vport **vports;
742 int i;
92d7f7b0
JS		 743
744 phba->link_state = LPFC_LINK_UP;
745
746 /* Unblock fabric iocbs if they are blocked */
747 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
748 del_timer_sync(&phba->fabric_block_timer);
749
549e55cd
JS		 750 vports = lpfc_create_vport_work_array(phba);
751 if (vports != NULL)
09372820 752 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
549e55cd 753 lpfc_linkup_port(vports[i]);
09372820 754 lpfc_destroy_vport_work_array(phba, vports);
92d7f7b0
JS		 755 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
756 lpfc_issue_clear_la(phba, phba->pport);
dea3101e
JB		 757
758 return 0;
759}
760
761/*
762 * This routine handles processing a CLEAR_LA mailbox
763 * command upon completion. It is setup in the LPFC_MBOXQ
764 * as the completion routine when the command is
765 * handed off to the SLI layer.
766 */
a6ababd2 767static void
2e0fef85 768lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 769{
2e0fef85
JS		 770 struct lpfc_vport *vport = pmb->vport;
771 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
772 struct lpfc_sli *psli = &phba->sli;
773 MAILBOX_t *mb = &pmb->mb;
dea3101e
JB		 774 uint32_t control;
775
dea3101e 776 /* Since we don't do discovery right now, turn these off here */
a4bc3379 777 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e
JB		 778 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
779 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
780
781 /* Check for error */
782 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
92d7f7b0 783 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
e8b62011
JS		 784 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
785 "0320 CLEAR_LA mbxStatus error x%x hba "
786 "state x%x\n",
787 mb->mbxStatus, vport->port_state);
2e0fef85 788 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 789 goto out;
790 }
791
92d7f7b0
JS		 792 if (vport->port_type == LPFC_PHYSICAL_PORT)
793 phba->link_state = LPFC_HBA_READY;
794
795 spin_lock_irq(&phba->hbalock);
796 psli->sli_flag |= LPFC_PROCESS_LA;
797 control = readl(phba->HCregaddr);
798 control |= HC_LAINT_ENA;
799 writel(control, phba->HCregaddr);
800 readl(phba->HCregaddr); /* flush */
801 spin_unlock_irq(&phba->hbalock);
1b32f6aa 802 mempool_free(pmb, phba->mbox_mem_pool);
92d7f7b0 803 return;
dea3101e 804
dea3101e
JB		 805out:
806 /* Device Discovery completes */
e8b62011
JS		 807 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
808 "0225 Device Discovery completes\n");
2e0fef85 809 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 810
2e0fef85
JS		 811 spin_lock_irq(shost->host_lock);
812 vport->fc_flag &= ~(FC_ABORT_DISCOVERY | FC_ESTABLISH_LINK);
813 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 814
815 del_timer_sync(&phba->fc_estabtmo);
816
2e0fef85 817 lpfc_can_disctmo(vport);
dea3101e
JB		 818
819 /* turn on Link Attention interrupts */
2e0fef85
JS		 820
821 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 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
JB		 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
JB		 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
JB		 876 return;
877}
878
879static void
2e0fef85 880lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 881{
dea3101e
JB		 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
JB		 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
JB		 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
JB		 915 lpfc_mbuf_free(phba, mp->virt, mp->phys);
916 kfree(mp);
2e0fef85 917 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 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
JB		 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
JB		 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
JB		 958 }
959
960 phba->fc_topology = la->topology;
92d7f7b0 961 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
dea3101e
JB		 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
JB		 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
JB		 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
JB		 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
JB		 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
JB		 1036 }
1037
1038 if (cfglink_mbox) {
2e0fef85 1039 vport->port_state = LPFC_LOCAL_CFG_LINK;
dea3101e 1040 lpfc_config_link(phba, cfglink_mbox);
2e0fef85 1041 cfglink_mbox->vport = vport;
25594c6b 1042 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
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
JB		 1055}
1056
1057static void
2e0fef85
JS		 1058lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
1059{
dea3101e
JB		 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
JB		 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
JB		 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
JB		 1086 READ_LA_VAR *la;
1087 MAILBOX_t *mb = &pmb->mb;
1088 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1089
1090 /* Check for error */
1091 if (mb->mbxStatus) {
ed957684 1092 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
e8b62011
JS		 1093 "1307 READ_LA mbox error x%x state x%x\n",
1094 mb->mbxStatus, vport->port_state);
dea3101e 1095 lpfc_mbx_issue_link_down(phba);
2e0fef85 1096 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 1097 goto lpfc_mbx_cmpl_read_la_free_mbuf;
1098 }
1099
1100 la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
1101
1102 memcpy(&phba->alpa_map[0], mp->virt, 128);
1103
2e0fef85 1104 spin_lock_irq(shost->host_lock);
c9f8735b 1105 if (la->pb)
2e0fef85 1106 vport->fc_flag |= FC_BYPASSED_MODE;
c9f8735b 1107 else
2e0fef85
JS		 1108 vport->fc_flag &= ~FC_BYPASSED_MODE;
1109 spin_unlock_irq(shost->host_lock);
c9f8735b 1110
dea3101e 1111 if (((phba->fc_eventTag + 1) < la->eventTag) ||
92d7f7b0 1112 (phba->fc_eventTag == la->eventTag)) {
dea3101e 1113 phba->fc_stat.LinkMultiEvent++;
2e0fef85 1114 if (la->attType == AT_LINK_UP)
dea3101e
JB		 1115 if (phba->fc_eventTag != 0)
1116 lpfc_linkdown(phba);
92d7f7b0 1117 }
dea3101e
JB		 1118
1119 phba->fc_eventTag = la->eventTag;
1120
1121 if (la->attType == AT_LINK_UP) {
1122 phba->fc_stat.LinkUp++;
2e0fef85 1123 if (phba->link_flag & LS_LOOPBACK_MODE) {
3163f725 1124 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011
JS		 1125 "1306 Link Up Event in loop back mode "
1126 "x%x received Data: x%x x%x x%x x%x\n",
1127 la->eventTag, phba->fc_eventTag,
1128 la->granted_AL_PA, la->UlnkSpeed,
1129 phba->alpa_map[0]);
5b8bd0c9
JS		 1130 } else {
1131 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011
JS		 1132 "1303 Link Up Event x%x received "
1133 "Data: x%x x%x x%x x%x\n",
1134 la->eventTag, phba->fc_eventTag,
1135 la->granted_AL_PA, la->UlnkSpeed,
1136 phba->alpa_map[0]);
5b8bd0c9 1137 }
92d7f7b0 1138 lpfc_mbx_process_link_up(phba, la);
dea3101e
JB		 1139 } else {
1140 phba->fc_stat.LinkDown++;
3163f725
JS		 1141 if (phba->link_flag & LS_LOOPBACK_MODE) {
1142 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1143 "1308 Link Down Event in loop back mode "
1144 "x%x received "
1145 "Data: x%x x%x x%x\n",
1146 la->eventTag, phba->fc_eventTag,
1147 phba->pport->port_state, vport->fc_flag);
1148 }
1149 else {
1150 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 1151 "1305 Link Down Event x%x received "
dea3101e 1152 "Data: x%x x%x x%x\n",
e8b62011 1153 la->eventTag, phba->fc_eventTag,
2e0fef85 1154 phba->pport->port_state, vport->fc_flag);
3163f725 1155 }
dea3101e
JB		 1156 lpfc_mbx_issue_link_down(phba);
1157 }
1158
1159lpfc_mbx_cmpl_read_la_free_mbuf:
1160 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1161 kfree(mp);
1162 mempool_free(pmb, phba->mbox_mem_pool);
1163 return;
1164}
1165
1166/*
1167 * This routine handles processing a REG_LOGIN mailbox
1168 * command upon completion. It is setup in the LPFC_MBOXQ
1169 * as the completion routine when the command is
1170 * handed off to the SLI layer.
1171 */
1172void
2e0fef85 1173lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1174{
2e0fef85 1175 struct lpfc_vport *vport = pmb->vport;
92d7f7b0 1176 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2e0fef85 1177 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
dea3101e 1178
dea3101e
JB		 1179 pmb->context1 = NULL;
1180
1181 /* Good status, call state machine */
2e0fef85 1182 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
dea3101e
JB		 1183 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1184 kfree(mp);
2e0fef85 1185 mempool_free(pmb, phba->mbox_mem_pool);
fa4066b6
JS		 1186 /* decrement the node reference count held for this callback
1187 * function.
1188 */
329f9bc7 1189 lpfc_nlp_put(ndlp);
dea3101e
JB		 1190
1191 return;
1192}
1193
92d7f7b0
JS		 1194static void
1195lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1196{
1197 MAILBOX_t *mb = &pmb->mb;
1198 struct lpfc_vport *vport = pmb->vport;
1199 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1200
1201 switch (mb->mbxStatus) {
1202 case 0x0011:
1203 case 0x0020:
1204 case 0x9700:
e8b62011
JS		 1205 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1206 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
1207 mb->mbxStatus);
92d7f7b0 1208 break;
92d7f7b0
JS		 1209 }
1210 vport->unreg_vpi_cmpl = VPORT_OK;
1211 mempool_free(pmb, phba->mbox_mem_pool);
1212 /*
1213 * This shost reference might have been taken at the beginning of
1214 * lpfc_vport_delete()
1215 */
1216 if (vport->load_flag & FC_UNLOADING)
1217 scsi_host_put(shost);
1218}
1219
1220void
1221lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
1222{
1223 struct lpfc_hba *phba = vport->phba;
1224 LPFC_MBOXQ_t *mbox;
1225 int rc;
1226
1227 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1228 if (!mbox)
1229 return;
1230
1231 lpfc_unreg_vpi(phba, vport->vpi, mbox);
1232 mbox->vport = vport;
1233 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
0b727fea 1234 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
92d7f7b0 1235 if (rc == MBX_NOT_FINISHED) {
e8b62011
JS		 1236 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
1237 "1800 Could not issue unreg_vpi\n");
92d7f7b0
JS		 1238 mempool_free(mbox, phba->mbox_mem_pool);
1239 vport->unreg_vpi_cmpl = VPORT_ERROR;
1240 }
1241}
1242
1243static void
1244lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1245{
1246 struct lpfc_vport *vport = pmb->vport;
1247 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1248 MAILBOX_t *mb = &pmb->mb;
1249
1250 switch (mb->mbxStatus) {
1251 case 0x0011:
1252 case 0x9601:
1253 case 0x9602:
e8b62011
JS		 1254 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1255 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
1256 mb->mbxStatus);
92d7f7b0
JS		 1257 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1258 spin_lock_irq(shost->host_lock);
1259 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1260 spin_unlock_irq(shost->host_lock);
1261 vport->fc_myDID = 0;
1262 goto out;
1263 }
92d7f7b0
JS		 1264
1265 vport->num_disc_nodes = 0;
1266 /* go thru NPR list and issue ELS PLOGIs */
1267 if (vport->fc_npr_cnt)
1268 lpfc_els_disc_plogi(vport);
1269
1270 if (!vport->num_disc_nodes) {
1271 spin_lock_irq(shost->host_lock);
1272 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1273 spin_unlock_irq(shost->host_lock);
1274 lpfc_can_disctmo(vport);
1275 }
1276 vport->port_state = LPFC_VPORT_READY;
1277
1278out:
1279 mempool_free(pmb, phba->mbox_mem_pool);
1280 return;
1281}
1282
dea3101e
JB		 1283/*
1284 * This routine handles processing a Fabric REG_LOGIN mailbox
1285 * command upon completion. It is setup in the LPFC_MBOXQ
1286 * as the completion routine when the command is
1287 * handed off to the SLI layer.
1288 */
1289void
2e0fef85 1290lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1291{
92d7f7b0 1292 struct lpfc_vport *vport = pmb->vport;
2e0fef85
JS		 1293 MAILBOX_t *mb = &pmb->mb;
1294 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
92d7f7b0 1295 struct lpfc_nodelist *ndlp;
549e55cd
JS		 1296 struct lpfc_vport **vports;
1297 int i;
dea3101e 1298
549e55cd 1299 ndlp = (struct lpfc_nodelist *) pmb->context2;
329f9bc7
JS		 1300 pmb->context1 = NULL;
1301 pmb->context2 = NULL;
dea3101e
JB		 1302 if (mb->mbxStatus) {
1303 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1304 kfree(mp);
329f9bc7 1305 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1306
92d7f7b0
JS		 1307 if (phba->fc_topology == TOPOLOGY_LOOP) {
1308 /* FLOGI failed, use loop map to make discovery list */
1309 lpfc_disc_list_loopmap(vport);
1310
1311 /* Start discovery */
1312 lpfc_disc_start(vport);
e47c9093
JS		 1313 /* Decrement the reference count to ndlp after the
1314 * reference to the ndlp are done.
1315 */
1316 lpfc_nlp_put(ndlp);
92d7f7b0
JS		 1317 return;
1318 }
1319
1320 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1321 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1322 "0258 Register Fabric login error: 0x%x\n",
1323 mb->mbxStatus);
e47c9093
JS		 1324 /* Decrement the reference count to ndlp after the reference
1325 * to the ndlp are done.
1326 */
1327 lpfc_nlp_put(ndlp);
dea3101e
JB		 1328 return;
1329 }
1330
dea3101e 1331 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1332 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 1333 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1334
2e0fef85 1335 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
549e55cd
JS		 1336 vports = lpfc_create_vport_work_array(phba);
1337 if (vports != NULL)
1338 for(i = 0;
09372820 1339 i <= phba->max_vpi && vports[i] != NULL;
549e55cd
JS		 1340 i++) {
1341 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
1342 continue;
1343 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
1344 lpfc_initial_fdisc(vports[i]);
1345 else if (phba->sli3_options &
1346 LPFC_SLI3_NPIV_ENABLED) {
1347 lpfc_vport_set_state(vports[i],
1348 FC_VPORT_NO_FABRIC_SUPP);
e8b62011
JS		 1349 lpfc_printf_vlog(vport, KERN_ERR,
1350 LOG_ELS,
1351 "0259 No NPIV "
1352 "Fabric support\n");
549e55cd 1353 }
dea3101e 1354 }
09372820 1355 lpfc_destroy_vport_work_array(phba, vports);
92d7f7b0 1356 lpfc_do_scr_ns_plogi(phba, vport);
dea3101e
JB		 1357 }
1358
1359 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1360 kfree(mp);
329f9bc7 1361 mempool_free(pmb, phba->mbox_mem_pool);
e47c9093
JS		 1362
1363 /* Drop the reference count from the mbox at the end after
1364 * all the current reference to the ndlp have been done.
1365 */
1366 lpfc_nlp_put(ndlp);
dea3101e
JB		 1367 return;
1368}
1369
1370/*
1371 * This routine handles processing a NameServer REG_LOGIN mailbox
1372 * command upon completion. It is setup in the LPFC_MBOXQ
1373 * as the completion routine when the command is
1374 * handed off to the SLI layer.
1375 */
1376void
2e0fef85 1377lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 1378{
2e0fef85
JS		 1379 MAILBOX_t *mb = &pmb->mb;
1380 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
1381 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
1382 struct lpfc_vport *vport = pmb->vport;
dea3101e
JB		 1383
1384 if (mb->mbxStatus) {
92d7f7b0 1385out:
fa4066b6
JS		 1386 /* decrement the node reference count held for this
1387 * callback function.
1388 */
329f9bc7 1389 lpfc_nlp_put(ndlp);
dea3101e
JB		 1390 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1391 kfree(mp);
de0c5b32 1392 mempool_free(pmb, phba->mbox_mem_pool);
87af33fe
JS		 1393
1394 /* If no other thread is using the ndlp, free it */
1395 lpfc_nlp_not_used(ndlp);
dea3101e 1396
92d7f7b0
JS		 1397 if (phba->fc_topology == TOPOLOGY_LOOP) {
1398 /*
1399 * RegLogin failed, use loop map to make discovery
1400 * list
1401 */
1402 lpfc_disc_list_loopmap(vport);
dea3101e 1403
92d7f7b0
JS		 1404 /* Start discovery */
1405 lpfc_disc_start(vport);
1406 return;
1407 }
1408 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1409 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1410 "0260 Register NameServer error: 0x%x\n",
1411 mb->mbxStatus);
dea3101e
JB		 1412 return;
1413 }
1414
1415 pmb->context1 = NULL;
1416
dea3101e 1417 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1418 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 1419 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1420
2e0fef85
JS		 1421 if (vport->port_state < LPFC_VPORT_READY) {
1422 /* Link up discovery requires Fabric registration. */
92d7f7b0
JS		 1423 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
1424 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
1425 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
1426 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
1427 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
1428
1429 /* Issue SCR just before NameServer GID_FT Query */
1430 lpfc_issue_els_scr(vport, SCR_DID, 0);
dea3101e
JB		 1431 }
1432
2e0fef85 1433 vport->fc_ns_retry = 0;
dea3101e 1434 /* Good status, issue CT Request to NameServer */
92d7f7b0 1435 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
dea3101e 1436 /* Cannot issue NameServer Query, so finish up discovery */
92d7f7b0 1437 goto out;
dea3101e
JB		 1438 }
1439
fa4066b6
JS		 1440 /* decrement the node reference count held for this
1441 * callback function.
1442 */
329f9bc7 1443 lpfc_nlp_put(ndlp);
dea3101e
JB		 1444 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1445 kfree(mp);
2e0fef85 1446 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 1447
1448 return;
1449}
1450
1451static void
2e0fef85 1452lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1453{
2e0fef85
JS		 1454 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1455 struct fc_rport *rport;
dea3101e
JB		 1456 struct lpfc_rport_data *rdata;
1457 struct fc_rport_identifiers rport_ids;
2e0fef85 1458 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1459
1460 /* Remote port has reappeared. Re-register w/ FC transport */
68ce1eb5
AM		 1461 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1462 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
dea3101e
JB		 1463 rport_ids.port_id = ndlp->nlp_DID;
1464 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
dea3101e 1465
329f9bc7
JS		 1466 /*
1467 * We leave our node pointer in rport->dd_data when we unregister a
1468 * FCP target port. But fc_remote_port_add zeros the space to which
1469 * rport->dd_data points. So, if we're reusing a previously
1470 * registered port, drop the reference that we took the last time we
1471 * registered the port.
1472 */
1473 if (ndlp->rport && ndlp->rport->dd_data &&
e47c9093 1474 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
329f9bc7 1475 lpfc_nlp_put(ndlp);
858c9f6c
JS		 1476
1477 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
1478 "rport add: did:x%x flg:x%x type x%x",
1479 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1480
2e0fef85 1481 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
329f9bc7 1482 if (!rport || !get_device(&rport->dev)) {
dea3101e
JB		 1483 dev_printk(KERN_WARNING, &phba->pcidev->dev,
1484 "Warning: fc_remote_port_add failed\n");
1485 return;
1486 }
1487
1488 /* initialize static port data */
1489 rport->maxframe_size = ndlp->nlp_maxframe;
1490 rport->supported_classes = ndlp->nlp_class_sup;
dea3101e 1491 rdata = rport->dd_data;
329f9bc7 1492 rdata->pnode = lpfc_nlp_get(ndlp);
23dc04f1
JSEC		 1493
1494 if (ndlp->nlp_type & NLP_FCP_TARGET)
1495 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1496 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
1497 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1498
1499
1500 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
1501 fc_remote_port_rolechg(rport, rport_ids.roles);
1502
071fbd3d 1503 if ((rport->scsi_target_id != -1) &&
92d7f7b0 1504 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
071fbd3d
JS		 1505 ndlp->nlp_sid = rport->scsi_target_id;
1506 }
19a7b4ae
JSEC		 1507 return;
1508}
1509
1510static void
2e0fef85 1511lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
19a7b4ae
JSEC		 1512{
1513 struct fc_rport *rport = ndlp->rport;
c01f3208 1514
858c9f6c
JS		 1515 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
1516 "rport delete: did:x%x flg:x%x type x%x",
1517 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
1518
19a7b4ae 1519 fc_remote_port_delete(rport);
dea3101e
JB		 1520
1521 return;
1522}
1523
de0c5b32 1524static void
2e0fef85 1525lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
dea3101e 1526{
2e0fef85
JS		 1527 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1528
1529 spin_lock_irq(shost->host_lock);
de0c5b32
JS		 1530 switch (state) {
1531 case NLP_STE_UNUSED_NODE:
2e0fef85 1532 vport->fc_unused_cnt += count;
de0c5b32
JS		 1533 break;
1534 case NLP_STE_PLOGI_ISSUE:
2e0fef85 1535 vport->fc_plogi_cnt += count;
de0c5b32
JS		 1536 break;
1537 case NLP_STE_ADISC_ISSUE:
2e0fef85 1538 vport->fc_adisc_cnt += count;
dea3101e 1539 break;
de0c5b32 1540 case NLP_STE_REG_LOGIN_ISSUE:
2e0fef85 1541 vport->fc_reglogin_cnt += count;
de0c5b32
JS		 1542 break;
1543 case NLP_STE_PRLI_ISSUE:
2e0fef85 1544 vport->fc_prli_cnt += count;
de0c5b32
JS		 1545 break;
1546 case NLP_STE_UNMAPPED_NODE:
2e0fef85 1547 vport->fc_unmap_cnt += count;
de0c5b32
JS		 1548 break;
1549 case NLP_STE_MAPPED_NODE:
2e0fef85 1550 vport->fc_map_cnt += count;
de0c5b32
JS		 1551 break;
1552 case NLP_STE_NPR_NODE:
2e0fef85 1553 vport->fc_npr_cnt += count;
de0c5b32
JS		 1554 break;
1555 }
2e0fef85 1556 spin_unlock_irq(shost->host_lock);
de0c5b32 1557}
66a9ed66 1558
de0c5b32 1559static void
2e0fef85 1560lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
de0c5b32
JS		 1561 int old_state, int new_state)
1562{
2e0fef85
JS		 1563 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1564
de0c5b32
JS		 1565 if (new_state == NLP_STE_UNMAPPED_NODE) {
1566 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1567 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1568 ndlp->nlp_type |= NLP_FC_NODE;
1569 }
1570 if (new_state == NLP_STE_MAPPED_NODE)
1571 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
1572 if (new_state == NLP_STE_NPR_NODE)
1573 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
1574
1575 /* Transport interface */
1576 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
1577 old_state == NLP_STE_UNMAPPED_NODE)) {
2e0fef85
JS		 1578 vport->phba->nport_event_cnt++;
1579 lpfc_unregister_remote_port(ndlp);
de0c5b32 1580 }
dea3101e 1581
de0c5b32
JS		 1582 if (new_state == NLP_STE_MAPPED_NODE ||
1583 new_state == NLP_STE_UNMAPPED_NODE) {
2e0fef85 1584 vport->phba->nport_event_cnt++;
858c9f6c
JS		 1585 /*
1586 * Tell the fc transport about the port, if we haven't
1587 * already. If we have, and it's a scsi entity, be
1588 * sure to unblock any attached scsi devices
1589 */
1590 lpfc_register_remote_port(vport, ndlp);
de0c5b32 1591 }
858c9f6c
JS		 1592 /*
1593 * if we added to Mapped list, but the remote port
1594 * registration failed or assigned a target id outside
1595 * our presentable range - move the node to the
1596 * Unmapped List
1597 */
de0c5b32
JS		 1598 if (new_state == NLP_STE_MAPPED_NODE &&
1599 (!ndlp->rport ||
1600 ndlp->rport->scsi_target_id == -1 ||
1601 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
2e0fef85 1602 spin_lock_irq(shost->host_lock);
de0c5b32 1603 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
2e0fef85
JS		 1604 spin_unlock_irq(shost->host_lock);
1605 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1606 }
de0c5b32
JS		 1607}
1608
685f0bf7
JS		 1609static char *
1610lpfc_nlp_state_name(char *buffer, size_t size, int state)
1611{
1612 static char *states[] = {
1613 [NLP_STE_UNUSED_NODE] = "UNUSED",
1614 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
1615 [NLP_STE_ADISC_ISSUE] = "ADISC",
1616 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
1617 [NLP_STE_PRLI_ISSUE] = "PRLI",
1618 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
1619 [NLP_STE_MAPPED_NODE] = "MAPPED",
1620 [NLP_STE_NPR_NODE] = "NPR",
1621 };
1622
311464ec 1623 if (state < NLP_STE_MAX_STATE && states[state])
685f0bf7
JS		 1624 strlcpy(buffer, states[state], size);
1625 else
1626 snprintf(buffer, size, "unknown (%d)", state);
1627 return buffer;
1628}
1629
de0c5b32 1630void
2e0fef85
JS		 1631lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1632 int state)
de0c5b32 1633{
2e0fef85 1634 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
de0c5b32 1635 int old_state = ndlp->nlp_state;
685f0bf7 1636 char name1[16], name2[16];
de0c5b32 1637
e8b62011
JS		 1638 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
1639 "0904 NPort state transition x%06x, %s -> %s\n",
1640 ndlp->nlp_DID,
1641 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
1642 lpfc_nlp_state_name(name2, sizeof(name2), state));
858c9f6c
JS		 1643
1644 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
1645 "node statechg did:x%x old:%d ste:%d",
1646 ndlp->nlp_DID, old_state, state);
1647
de0c5b32
JS		 1648 if (old_state == NLP_STE_NPR_NODE &&
1649 (ndlp->nlp_flag & NLP_DELAY_TMO) != 0 &&
1650 state != NLP_STE_NPR_NODE)
2e0fef85 1651 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32
JS		 1652 if (old_state == NLP_STE_UNMAPPED_NODE) {
1653 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
1654 ndlp->nlp_type &= ~NLP_FC_NODE;
1655 }
1656
685f0bf7 1657 if (list_empty(&ndlp->nlp_listp)) {
2e0fef85
JS		 1658 spin_lock_irq(shost->host_lock);
1659 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
1660 spin_unlock_irq(shost->host_lock);
685f0bf7 1661 } else if (old_state)
2e0fef85 1662 lpfc_nlp_counters(vport, old_state, -1);
de0c5b32
JS		 1663
1664 ndlp->nlp_state = state;
2e0fef85
JS		 1665 lpfc_nlp_counters(vport, state, 1);
1666 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
de0c5b32
JS		 1667}
1668
e47c9093
JS		 1669void
1670lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1671{
1672 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1673
1674 if (list_empty(&ndlp->nlp_listp)) {
1675 spin_lock_irq(shost->host_lock);
1676 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
1677 spin_unlock_irq(shost->host_lock);
1678 }
1679}
1680
de0c5b32 1681void
2e0fef85 1682lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 1683{
2e0fef85
JS		 1684 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1685
de0c5b32 1686 if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
2e0fef85 1687 lpfc_cancel_retry_delay_tmo(vport, ndlp);
de0c5b32 1688 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2e0fef85
JS		 1689 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
1690 spin_lock_irq(shost->host_lock);
685f0bf7 1691 list_del_init(&ndlp->nlp_listp);
2e0fef85 1692 spin_unlock_irq(shost->host_lock);
858c9f6c 1693 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
e47c9093
JS		 1694 NLP_STE_UNUSED_NODE);
1695}
1696
1697void
1698lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
1699{
1700 if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0)
1701 lpfc_cancel_retry_delay_tmo(vport, ndlp);
1702 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
1703 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
1704 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
1705 NLP_STE_UNUSED_NODE);
1706}
1707
1708struct lpfc_nodelist *
1709lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1710 int state)
1711{
1712 struct lpfc_hba *phba = vport->phba;
1713 uint32_t did;
1714 unsigned long flags;
1715
1716 if (!ndlp)
1717 return NULL;
1718
1719 spin_lock_irqsave(&phba->ndlp_lock, flags);
1720 /* The ndlp should not be in memory free mode */
1721 if (NLP_CHK_FREE_REQ(ndlp)) {
1722 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
1723 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
1724 "0277 lpfc_enable_node: ndlp:x%p "
1725 "usgmap:x%x refcnt:%d\n",
1726 (void *)ndlp, ndlp->nlp_usg_map,
1727 atomic_read(&ndlp->kref.refcount));
1728 return NULL;
1729 }
1730 /* The ndlp should not already be in active mode */
1731 if (NLP_CHK_NODE_ACT(ndlp)) {
1732 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
1733 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
1734 "0278 lpfc_enable_node: ndlp:x%p "
1735 "usgmap:x%x refcnt:%d\n",
1736 (void *)ndlp, ndlp->nlp_usg_map,
1737 atomic_read(&ndlp->kref.refcount));
1738 return NULL;
1739 }
1740
1741 /* Keep the original DID */
1742 did = ndlp->nlp_DID;
1743
1744 /* re-initialize ndlp except of ndlp linked list pointer */
1745 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
1746 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
1747 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
1748 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
1749 init_timer(&ndlp->nlp_delayfunc);
1750 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
1751 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
1752 ndlp->nlp_DID = did;
1753 ndlp->vport = vport;
1754 ndlp->nlp_sid = NLP_NO_SID;
1755 /* ndlp management re-initialize */
1756 kref_init(&ndlp->kref);
1757 NLP_INT_NODE_ACT(ndlp);
1758
1759 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
1760
1761 if (state != NLP_STE_UNUSED_NODE)
1762 lpfc_nlp_set_state(vport, ndlp, state);
1763
1764 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
1765 "node enable: did:x%x",
1766 ndlp->nlp_DID, 0, 0);
1767 return ndlp;
de0c5b32
JS		 1768}
1769
1770void
2e0fef85 1771lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
de0c5b32 1772{
87af33fe 1773 /*
fa4066b6 1774 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
87af33fe 1775 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
fa4066b6
JS		 1776 * the ndlp from the vport. The ndlp marked as UNUSED on the list
1777 * until ALL other outstanding threads have completed. We check
1778 * that the ndlp not already in the UNUSED state before we proceed.
87af33fe 1779 */
fa4066b6
JS		 1780 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
1781 return;
51ef4c26 1782 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
87af33fe 1783 lpfc_nlp_put(ndlp);
98c9ea5c 1784 return;
dea3101e
JB		 1785}
1786
1787/*
1788 * Start / ReStart rescue timer for Discovery / RSCN handling
1789 */
1790void
2e0fef85 1791lpfc_set_disctmo(struct lpfc_vport *vport)
dea3101e 1792{
2e0fef85
JS		 1793 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1794 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1795 uint32_t tmo;
1796
2e0fef85 1797 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
c9f8735b
JW		 1798 /* For FAN, timeout should be greater then edtov */
1799 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
1800 } else {
1801 /* Normal discovery timeout should be > then ELS/CT timeout
1802 * FC spec states we need 3 * ratov for CT requests
1803 */
1804 tmo = ((phba->fc_ratov * 3) + 3);
1805 }
dea3101e 1806
858c9f6c
JS		 1807
1808 if (!timer_pending(&vport->fc_disctmo)) {
1809 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1810 "set disc timer: tmo:x%x state:x%x flg:x%x",
1811 tmo, vport->port_state, vport->fc_flag);
1812 }
1813
2e0fef85
JS		 1814 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
1815 spin_lock_irq(shost->host_lock);
1816 vport->fc_flag |= FC_DISC_TMO;
1817 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 1818
1819 /* Start Discovery Timer state <hba_state> */
e8b62011
JS		 1820 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1821 "0247 Start Discovery Timer state x%x "
1822 "Data: x%x x%lx x%x x%x\n",
1823 vport->port_state, tmo,
1824 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
1825 vport->fc_adisc_cnt);
dea3101e
JB		 1826
1827 return;
1828}
1829
1830/*
1831 * Cancel rescue timer for Discovery / RSCN handling
1832 */
1833int
2e0fef85 1834lpfc_can_disctmo(struct lpfc_vport *vport)
dea3101e 1835{
2e0fef85 1836 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85
JS		 1837 unsigned long iflags;
1838
858c9f6c
JS		 1839 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1840 "can disc timer: state:x%x rtry:x%x flg:x%x",
1841 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
1842
dea3101e 1843 /* Turn off discovery timer if its running */
2e0fef85
JS		 1844 if (vport->fc_flag & FC_DISC_TMO) {
1845 spin_lock_irqsave(shost->host_lock, iflags);
1846 vport->fc_flag &= ~FC_DISC_TMO;
1847 spin_unlock_irqrestore(shost->host_lock, iflags);
1848 del_timer_sync(&vport->fc_disctmo);
1849 spin_lock_irqsave(&vport->work_port_lock, iflags);
1850 vport->work_port_events &= ~WORKER_DISC_TMO;
1851 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
dea3101e
JB		 1852 }
1853
1854 /* Cancel Discovery Timer state <hba_state> */
e8b62011
JS		 1855 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1856 "0248 Cancel Discovery Timer state x%x "
1857 "Data: x%x x%x x%x\n",
1858 vport->port_state, vport->fc_flag,
1859 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
2fe165b6 1860 return 0;
dea3101e
JB		 1861}
1862
1863/*
1864 * Check specified ring for outstanding IOCB on the SLI queue
1865 * Return true if iocb matches the specified nport
1866 */
1867int
2e0fef85
JS		 1868lpfc_check_sli_ndlp(struct lpfc_hba *phba,
1869 struct lpfc_sli_ring *pring,
1870 struct lpfc_iocbq *iocb,
1871 struct lpfc_nodelist *ndlp)
dea3101e 1872{
2e0fef85
JS		 1873 struct lpfc_sli *psli = &phba->sli;
1874 IOCB_t *icmd = &iocb->iocb;
92d7f7b0
JS		 1875 struct lpfc_vport *vport = ndlp->vport;
1876
1877 if (iocb->vport != vport)
1878 return 0;
1879
dea3101e
JB		 1880 if (pring->ringno == LPFC_ELS_RING) {
1881 switch (icmd->ulpCommand) {
1882 case CMD_GEN_REQUEST64_CR:
1883 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
2fe165b6 1884 return 1;
dea3101e 1885 case CMD_ELS_REQUEST64_CR:
10d4e957
JS		 1886 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
1887 return 1;
dea3101e
JB		 1888 case CMD_XMIT_ELS_RSP64_CX:
1889 if (iocb->context1 == (uint8_t *) ndlp)
2fe165b6 1890 return 1;
dea3101e 1891 }
a4bc3379 1892 } else if (pring->ringno == psli->extra_ring) {
dea3101e
JB		 1893
1894 } else if (pring->ringno == psli->fcp_ring) {
1895 /* Skip match check if waiting to relogin to FCP target */
1896 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
92d7f7b0 1897 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
2fe165b6 1898 return 0;
dea3101e
JB		 1899 }
1900 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
2fe165b6 1901 return 1;
dea3101e
JB		 1902 }
1903 } else if (pring->ringno == psli->next_ring) {
1904
1905 }
2fe165b6 1906 return 0;
dea3101e
JB		 1907}
1908
1909/*
1910 * Free resources / clean up outstanding I/Os
1911 * associated with nlp_rpi in the LPFC_NODELIST entry.
1912 */
1913static int
2e0fef85 1914lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 1915{
2534ba75 1916 LIST_HEAD(completions);
dea3101e
JB		 1917 struct lpfc_sli *psli;
1918 struct lpfc_sli_ring *pring;
1919 struct lpfc_iocbq *iocb, *next_iocb;
1920 IOCB_t *icmd;
1921 uint32_t rpi, i;
1922
92d7f7b0
JS		 1923 lpfc_fabric_abort_nport(ndlp);
1924
dea3101e
JB		 1925 /*
1926 * Everything that matches on txcmplq will be returned
1927 * by firmware with a no rpi error.
1928 */
1929 psli = &phba->sli;
1930 rpi = ndlp->nlp_rpi;
1931 if (rpi) {
1932 /* Now process each ring */
1933 for (i = 0; i < psli->num_rings; i++) {
1934 pring = &psli->ring[i];
1935
2e0fef85 1936 spin_lock_irq(&phba->hbalock);
dea3101e 1937 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
2e0fef85 1938 list) {
dea3101e
JB		 1939 /*
1940 * Check to see if iocb matches the nport we are
1941 * looking for
1942 */
92d7f7b0
JS		 1943 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
1944 ndlp))) {
dea3101e
JB		 1945 /* It matches, so deque and call compl
1946 with an error */
2534ba75
JS		 1947 list_move_tail(&iocb->list,
1948 &completions);
dea3101e 1949 pring->txq_cnt--;
dea3101e
JB		 1950 }
1951 }
2e0fef85 1952 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 1953 }
1954 }
2534ba75
JS		 1955
1956 while (!list_empty(&completions)) {
1957 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
92d7f7b0 1958 list_del_init(&iocb->list);
2534ba75 1959
2e0fef85
JS		 1960 if (!iocb->iocb_cmpl)
1961 lpfc_sli_release_iocbq(phba, iocb);
1962 else {
2534ba75
JS		 1963 icmd = &iocb->iocb;
1964 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1965 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2e0fef85
JS		 1966 (iocb->iocb_cmpl)(phba, iocb, iocb);
1967 }
2534ba75
JS		 1968 }
1969
2fe165b6 1970 return 0;
dea3101e
JB		 1971}
1972
1973/*
1974 * Free rpi associated with LPFC_NODELIST entry.
1975 * This routine is called from lpfc_freenode(), when we are removing
1976 * a LPFC_NODELIST entry. It is also called if the driver initiates a
1977 * LOGO that completes successfully, and we are waiting to PLOGI back
1978 * to the remote NPort. In addition, it is called after we receive
1979 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
1980 * we are waiting to PLOGI back to the remote NPort.
1981 */
1982int
2e0fef85 1983lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 1984{
2e0fef85
JS		 1985 struct lpfc_hba *phba = vport->phba;
1986 LPFC_MBOXQ_t *mbox;
dea3101e
JB		 1987 int rc;
1988
1989 if (ndlp->nlp_rpi) {
2e0fef85
JS		 1990 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1991 if (mbox) {
92d7f7b0 1992 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
ed957684 1993 mbox->vport = vport;
92d7f7b0 1994 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 1995 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
dea3101e 1996 if (rc == MBX_NOT_FINISHED)
2e0fef85 1997 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 1998 }
dea3101e
JB		 1999 lpfc_no_rpi(phba, ndlp);
2000 ndlp->nlp_rpi = 0;
2001 return 1;
2002 }
2003 return 0;
2004}
2005
92d7f7b0
JS		 2006void
2007lpfc_unreg_all_rpis(struct lpfc_vport *vport)
2008{
2009 struct lpfc_hba *phba = vport->phba;
2010 LPFC_MBOXQ_t *mbox;
2011 int rc;
2012
2013 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2014 if (mbox) {
2015 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
2016 mbox->vport = vport;
2017 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
09372820
JS		 2018 mbox->context1 = NULL;
2019 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
92d7f7b0
JS		 2020 if (rc == MBX_NOT_FINISHED) {
2021 mempool_free(mbox, phba->mbox_mem_pool);
2022 }
2023 }
2024}
2025
2026void
2027lpfc_unreg_default_rpis(struct lpfc_vport *vport)
2028{
2029 struct lpfc_hba *phba = vport->phba;
2030 LPFC_MBOXQ_t *mbox;
2031 int rc;
2032
2033 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2034 if (mbox) {
2035 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
2036 mbox->vport = vport;
2037 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
09372820
JS		 2038 mbox->context1 = NULL;
2039 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
92d7f7b0 2040 if (rc == MBX_NOT_FINISHED) {
e8b62011
JS		 2041 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
2042 "1815 Could not issue "
2043 "unreg_did (default rpis)\n");
92d7f7b0
JS		 2044 mempool_free(mbox, phba->mbox_mem_pool);
2045 }
2046 }
2047}
2048
dea3101e
JB		 2049/*
2050 * Free resources associated with LPFC_NODELIST entry
2051 * so it can be freed.
2052 */
2053static int
2e0fef85 2054lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 2055{
2e0fef85
JS		 2056 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2057 struct lpfc_hba *phba = vport->phba;
2058 LPFC_MBOXQ_t *mb, *nextmb;
dea3101e 2059 struct lpfc_dmabuf *mp;
dea3101e
JB		 2060
2061 /* Cleanup node for NPort <nlp_DID> */
e8b62011
JS		 2062 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2063 "0900 Cleanup node for NPort x%x "
2064 "Data: x%x x%x x%x\n",
2065 ndlp->nlp_DID, ndlp->nlp_flag,
2066 ndlp->nlp_state, ndlp->nlp_rpi);
e47c9093
JS		 2067 if (NLP_CHK_FREE_REQ(ndlp)) {
2068 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2069 "0280 lpfc_cleanup_node: ndlp:x%p "
2070 "usgmap:x%x refcnt:%d\n",
2071 (void *)ndlp, ndlp->nlp_usg_map,
2072 atomic_read(&ndlp->kref.refcount));
2073 lpfc_dequeue_node(vport, ndlp);
2074 } else {
2075 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2076 "0281 lpfc_cleanup_node: ndlp:x%p "
2077 "usgmap:x%x refcnt:%d\n",
2078 (void *)ndlp, ndlp->nlp_usg_map,
2079 atomic_read(&ndlp->kref.refcount));
2080 lpfc_disable_node(vport, ndlp);
2081 }
dea3101e 2082
dea3101e
JB		 2083 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
2084 if ((mb = phba->sli.mbox_active)) {
2085 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
2086 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
2087 mb->context2 = NULL;
2088 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2089 }
2090 }
33ccf8d1 2091
2e0fef85 2092 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 2093 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
2094 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
92d7f7b0 2095 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
dea3101e
JB		 2096 mp = (struct lpfc_dmabuf *) (mb->context1);
2097 if (mp) {
2e0fef85 2098 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e
JB		 2099 kfree(mp);
2100 }
2101 list_del(&mb->list);
2102 mempool_free(mb, phba->mbox_mem_pool);
e47c9093
JS		 2103 /* We shall not invoke the lpfc_nlp_put to decrement
2104 * the ndlp reference count as we are in the process
2105 * of lpfc_nlp_release.
2106 */
dea3101e
JB		 2107 }
2108 }
2e0fef85 2109 spin_unlock_irq(&phba->hbalock);
dea3101e 2110
e47c9093
JS		 2111 lpfc_els_abort(phba, ndlp);
2112
2e0fef85 2113 spin_lock_irq(shost->host_lock);
c01f3208 2114 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
2e0fef85 2115 spin_unlock_irq(shost->host_lock);
dea3101e 2116
5024ab17 2117 ndlp->nlp_last_elscmd = 0;
dea3101e
JB		 2118 del_timer_sync(&ndlp->nlp_delayfunc);
2119
dea3101e
JB		 2120 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
2121 list_del_init(&ndlp->els_retry_evt.evt_listp);
92d7f7b0
JS		 2122 if (!list_empty(&ndlp->dev_loss_evt.evt_listp))
2123 list_del_init(&ndlp->dev_loss_evt.evt_listp);
dea3101e 2124
2e0fef85 2125 lpfc_unreg_rpi(vport, ndlp);
dea3101e 2126
2fe165b6 2127 return 0;
dea3101e
JB		 2128}
2129
2130/*
2131 * Check to see if we can free the nlp back to the freelist.
2132 * If we are in the middle of using the nlp in the discovery state
2133 * machine, defer the free till we reach the end of the state machine.
2134 */
329f9bc7 2135static void
2e0fef85 2136lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 2137{
a8adb832 2138 struct lpfc_hba *phba = vport->phba;
1dcb58e5 2139 struct lpfc_rport_data *rdata;
a8adb832
JS		 2140 LPFC_MBOXQ_t *mbox;
2141 int rc;
dea3101e
JB		 2142
2143 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
2e0fef85 2144 lpfc_cancel_retry_delay_tmo(vport, ndlp);
dea3101e
JB		 2145 }
2146
a8adb832
JS		 2147 if (ndlp->nlp_flag & NLP_DEFER_RM && !ndlp->nlp_rpi) {
2148 /* For this case we need to cleanup the default rpi
2149 * allocated by the firmware.
2150 */
2151 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
2152 != NULL) {
2153 rc = lpfc_reg_login(phba, vport->vpi, ndlp->nlp_DID,
2154 (uint8_t *) &vport->fc_sparam, mbox, 0);
2155 if (rc) {
2156 mempool_free(mbox, phba->mbox_mem_pool);
2157 }
2158 else {
2159 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
2160 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
2161 mbox->vport = vport;
09372820 2162 mbox->context2 = NULL;
a8adb832
JS		 2163 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2164 if (rc == MBX_NOT_FINISHED) {
2165 mempool_free(mbox, phba->mbox_mem_pool);
2166 }
2167 }
2168 }
2169 }
2e0fef85 2170 lpfc_cleanup_node(vport, ndlp);
1dcb58e5 2171
2e0fef85 2172 /*
92d7f7b0
JS		 2173 * We can get here with a non-NULL ndlp->rport because when we
2174 * unregister a rport we don't break the rport/node linkage. So if we
2175 * do, make sure we don't leaving any dangling pointers behind.
2e0fef85 2176 */
92d7f7b0 2177 if (ndlp->rport) {
329f9bc7
JS		 2178 rdata = ndlp->rport->dd_data;
2179 rdata->pnode = NULL;
2180 ndlp->rport = NULL;
dea3101e 2181 }
dea3101e
JB		 2182}
2183
2184static int
2e0fef85
JS		 2185lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2186 uint32_t did)
dea3101e 2187{
2e0fef85 2188 D_ID mydid, ndlpdid, matchdid;
dea3101e
JB		 2189
2190 if (did == Bcast_DID)
2fe165b6 2191 return 0;
dea3101e
JB		 2192
2193 if (ndlp->nlp_DID == 0) {
2fe165b6 2194 return 0;
dea3101e
JB		 2195 }
2196
2197 /* First check for Direct match */
2198 if (ndlp->nlp_DID == did)
2fe165b6 2199 return 1;
dea3101e
JB		 2200
2201 /* Next check for area/domain identically equals 0 match */
2e0fef85 2202 mydid.un.word = vport->fc_myDID;
dea3101e 2203 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
2fe165b6 2204 return 0;
dea3101e
JB		 2205 }
2206
2207 matchdid.un.word = did;
2208 ndlpdid.un.word = ndlp->nlp_DID;
2209 if (matchdid.un.b.id == ndlpdid.un.b.id) {
2210 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
2211 (mydid.un.b.area == matchdid.un.b.area)) {
2212 if ((ndlpdid.un.b.domain == 0) &&
2213 (ndlpdid.un.b.area == 0)) {
2214 if (ndlpdid.un.b.id)
2fe165b6 2215 return 1;
dea3101e 2216 }
2fe165b6 2217 return 0;
dea3101e
JB		 2218 }
2219
2220 matchdid.un.word = ndlp->nlp_DID;
2221 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
2222 (mydid.un.b.area == ndlpdid.un.b.area)) {
2223 if ((matchdid.un.b.domain == 0) &&
2224 (matchdid.un.b.area == 0)) {
2225 if (matchdid.un.b.id)
2fe165b6 2226 return 1;
dea3101e
JB		 2227 }
2228 }
2229 }
2fe165b6 2230 return 0;
dea3101e
JB		 2231}
2232
685f0bf7 2233/* Search for a nodelist entry */
2e0fef85
JS		 2234static struct lpfc_nodelist *
2235__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
dea3101e 2236{
2fb9bd8b 2237 struct lpfc_nodelist *ndlp;
dea3101e
JB		 2238 uint32_t data1;
2239
2e0fef85
JS		 2240 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2241 if (lpfc_matchdid(vport, ndlp, did)) {
685f0bf7
JS		 2242 data1 = (((uint32_t) ndlp->nlp_state << 24) |
2243 ((uint32_t) ndlp->nlp_xri << 16) |
2244 ((uint32_t) ndlp->nlp_type << 8) |
2245 ((uint32_t) ndlp->nlp_rpi & 0xff));
e8b62011
JS		 2246 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2247 "0929 FIND node DID "
2248 "Data: x%p x%x x%x x%x\n",
2249 ndlp, ndlp->nlp_DID,
2250 ndlp->nlp_flag, data1);
685f0bf7 2251 return ndlp;
dea3101e
JB		 2252 }
2253 }
66a9ed66 2254
dea3101e 2255 /* FIND node did <did> NOT FOUND */
e8b62011
JS		 2256 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2257 "0932 FIND node did x%x NOT FOUND.\n", did);
dea3101e
JB		 2258 return NULL;
2259}
2260
2261struct lpfc_nodelist *
2e0fef85
JS		 2262lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
2263{
2264 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2265 struct lpfc_nodelist *ndlp;
2266
2267 spin_lock_irq(shost->host_lock);
2268 ndlp = __lpfc_findnode_did(vport, did);
2269 spin_unlock_irq(shost->host_lock);
2270 return ndlp;
2271}
2272
2273struct lpfc_nodelist *
2274lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
dea3101e 2275{
2e0fef85 2276 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 2277 struct lpfc_nodelist *ndlp;
dea3101e 2278
2e0fef85 2279 ndlp = lpfc_findnode_did(vport, did);
c9f8735b 2280 if (!ndlp) {
2e0fef85
JS		 2281 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
2282 lpfc_rscn_payload_check(vport, did) == 0)
dea3101e
JB		 2283 return NULL;
2284 ndlp = (struct lpfc_nodelist *)
2e0fef85 2285 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
dea3101e
JB		 2286 if (!ndlp)
2287 return NULL;
2e0fef85
JS		 2288 lpfc_nlp_init(vport, ndlp, did);
2289 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2290 spin_lock_irq(shost->host_lock);
dea3101e 2291 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2292 spin_unlock_irq(shost->host_lock);
dea3101e 2293 return ndlp;
e47c9093
JS		 2294 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2295 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
2296 if (!ndlp)
2297 return NULL;
2298 spin_lock_irq(shost->host_lock);
2299 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2300 spin_unlock_irq(shost->host_lock);
2301 return ndlp;
dea3101e 2302 }
e47c9093 2303
2e0fef85
JS		 2304 if (vport->fc_flag & FC_RSCN_MODE) {
2305 if (lpfc_rscn_payload_check(vport, did)) {
87af33fe
JS		 2306 /* If we've already recieved a PLOGI from this NPort
2307 * we don't need to try to discover it again.
2308 */
2309 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
2310 return NULL;
2311
2e0fef85 2312 spin_lock_irq(shost->host_lock);
dea3101e 2313 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2314 spin_unlock_irq(shost->host_lock);
c9f8735b
JW		 2315
2316 /* Since this node is marked for discovery,
2317 * delay timeout is not needed.
2318 */
fdcebe28 2319 if (ndlp->nlp_flag & NLP_DELAY_TMO)
2e0fef85 2320 lpfc_cancel_retry_delay_tmo(vport, ndlp);
071fbd3d 2321 } else
dea3101e 2322 ndlp = NULL;
2fe165b6 2323 } else {
87af33fe
JS		 2324 /* If we've already recieved a PLOGI from this NPort,
2325 * or we are already in the process of discovery on it,
2326 * we don't need to try to discover it again.
2327 */
685f0bf7 2328 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
87af33fe
JS		 2329 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
2330 ndlp->nlp_flag & NLP_RCV_PLOGI)
dea3101e 2331 return NULL;
2e0fef85
JS		 2332 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2333 spin_lock_irq(shost->host_lock);
dea3101e 2334 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2e0fef85 2335 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 2336 }
2337 return ndlp;
2338}
2339
2340/* Build a list of nodes to discover based on the loopmap */
2341void
2e0fef85 2342lpfc_disc_list_loopmap(struct lpfc_vport *vport)
dea3101e 2343{
2e0fef85 2344 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 2345 int j;
2346 uint32_t alpa, index;
2347
2e0fef85 2348 if (!lpfc_is_link_up(phba))
dea3101e 2349 return;
2e0fef85
JS		 2350
2351 if (phba->fc_topology != TOPOLOGY_LOOP)
dea3101e 2352 return;
dea3101e
JB		 2353
2354 /* Check for loop map present or not */
2355 if (phba->alpa_map[0]) {
2356 for (j = 1; j <= phba->alpa_map[0]; j++) {
2357 alpa = phba->alpa_map[j];
2e0fef85 2358 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
dea3101e 2359 continue;
2e0fef85 2360 lpfc_setup_disc_node(vport, alpa);
dea3101e
JB		 2361 }
2362 } else {
2363 /* No alpamap, so try all alpa's */
2364 for (j = 0; j < FC_MAXLOOP; j++) {
2365 /* If cfg_scan_down is set, start from highest
2366 * ALPA (0xef) to lowest (0x1).
2367 */
3de2a653 2368 if (vport->cfg_scan_down)
dea3101e
JB		 2369 index = j;
2370 else
2371 index = FC_MAXLOOP - j - 1;
2372 alpa = lpfcAlpaArray[index];
2e0fef85 2373 if ((vport->fc_myDID & 0xff) == alpa)
dea3101e 2374 continue;
2e0fef85 2375 lpfc_setup_disc_node(vport, alpa);
dea3101e
JB		 2376 }
2377 }
2378 return;
2379}
2380
dea3101e 2381void
2e0fef85 2382lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
dea3101e 2383{
dea3101e 2384 LPFC_MBOXQ_t *mbox;
2e0fef85
JS		 2385 struct lpfc_sli *psli = &phba->sli;
2386 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
2387 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
2388 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
2389 int rc;
2390
92d7f7b0
JS		 2391 /*
2392 * if it's not a physical port or if we already send
2393 * clear_la then don't send it.
2394 */
2395 if ((phba->link_state >= LPFC_CLEAR_LA) ||
2396 (vport->port_type != LPFC_PHYSICAL_PORT))
2397 return;
2398
2e0fef85
JS		 2399 /* Link up discovery */
2400 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
2401 phba->link_state = LPFC_CLEAR_LA;
2402 lpfc_clear_la(phba, mbox);
2403 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
2404 mbox->vport = vport;
0b727fea 2405 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2e0fef85
JS		 2406 if (rc == MBX_NOT_FINISHED) {
2407 mempool_free(mbox, phba->mbox_mem_pool);
2408 lpfc_disc_flush_list(vport);
2409 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2410 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
2411 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
92d7f7b0
JS		 2412 phba->link_state = LPFC_HBA_ERROR;
2413 }
2414 }
2415}
2416
2417/* Reg_vpi to tell firmware to resume normal operations */
2418void
2419lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
2420{
2421 LPFC_MBOXQ_t *regvpimbox;
2422
2423 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2424 if (regvpimbox) {
2425 lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, regvpimbox);
2426 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
2427 regvpimbox->vport = vport;
0b727fea 2428 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
92d7f7b0
JS		 2429 == MBX_NOT_FINISHED) {
2430 mempool_free(regvpimbox, phba->mbox_mem_pool);
2e0fef85
JS		 2431 }
2432 }
2433}
2434
2435/* Start Link up / RSCN discovery on NPR nodes */
2436void
2437lpfc_disc_start(struct lpfc_vport *vport)
2438{
2439 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2440 struct lpfc_hba *phba = vport->phba;
685f0bf7 2441 uint32_t num_sent;
dea3101e 2442 uint32_t clear_la_pending;
685f0bf7 2443 int did_changed;
dea3101e 2444
2e0fef85 2445 if (!lpfc_is_link_up(phba))
dea3101e 2446 return;
2e0fef85
JS		 2447
2448 if (phba->link_state == LPFC_CLEAR_LA)
dea3101e
JB		 2449 clear_la_pending = 1;
2450 else
2451 clear_la_pending = 0;
2452
2e0fef85
JS		 2453 if (vport->port_state < LPFC_VPORT_READY)
2454 vport->port_state = LPFC_DISC_AUTH;
dea3101e 2455
2e0fef85
JS		 2456 lpfc_set_disctmo(vport);
2457
2458 if (vport->fc_prevDID == vport->fc_myDID)
dea3101e 2459 did_changed = 0;
2e0fef85 2460 else
dea3101e 2461 did_changed = 1;
2e0fef85
JS		 2462
2463 vport->fc_prevDID = vport->fc_myDID;
2464 vport->num_disc_nodes = 0;
dea3101e
JB		 2465
2466 /* Start Discovery state <hba_state> */
e8b62011
JS		 2467 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2468 "0202 Start Discovery hba state x%x "
2469 "Data: x%x x%x x%x\n",
2470 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
2471 vport->fc_adisc_cnt);
dea3101e
JB		 2472
2473 /* First do ADISCs - if any */
2e0fef85 2474 num_sent = lpfc_els_disc_adisc(vport);
dea3101e
JB		 2475
2476 if (num_sent)
2477 return;
2478
92d7f7b0
JS		 2479 /*
2480 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
2481 * continue discovery.
2482 */
2483 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1b32f6aa 2484 !(vport->fc_flag & FC_PT2PT) &&
92d7f7b0
JS		 2485 !(vport->fc_flag & FC_RSCN_MODE)) {
2486 lpfc_issue_reg_vpi(phba, vport);
2487 return;
2488 }
2489
2490 /*
2491 * For SLI2, we need to set port_state to READY and continue
2492 * discovery.
2493 */
2e0fef85 2494 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
dea3101e 2495 /* If we get here, there is nothing to ADISC */
92d7f7b0 2496 if (vport->port_type == LPFC_PHYSICAL_PORT)
2e0fef85 2497 lpfc_issue_clear_la(phba, vport);
2e0fef85 2498
92d7f7b0 2499 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2e0fef85
JS		 2500 vport->num_disc_nodes = 0;
2501 /* go thru NPR nodes and issue ELS PLOGIs */
2502 if (vport->fc_npr_cnt)
2503 lpfc_els_disc_plogi(vport);
2504
2505 if (!vport->num_disc_nodes) {
2506 spin_lock_irq(shost->host_lock);
2507 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2508 spin_unlock_irq(shost->host_lock);
92d7f7b0 2509 lpfc_can_disctmo(vport);
dea3101e
JB		 2510 }
2511 }
92d7f7b0 2512 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 2513 } else {
2514 /* Next do PLOGIs - if any */
2e0fef85 2515 num_sent = lpfc_els_disc_plogi(vport);
dea3101e
JB		 2516
2517 if (num_sent)
2518 return;
2519
2e0fef85 2520 if (vport->fc_flag & FC_RSCN_MODE) {
dea3101e
JB		 2521 /* Check to see if more RSCNs came in while we
2522 * were processing this one.
2523 */
2e0fef85
JS		 2524 if ((vport->fc_rscn_id_cnt == 0) &&
2525 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
2526 spin_lock_irq(shost->host_lock);
2527 vport->fc_flag &= ~FC_RSCN_MODE;
2528 spin_unlock_irq(shost->host_lock);
92d7f7b0 2529 lpfc_can_disctmo(vport);
2fe165b6 2530 } else
2e0fef85 2531 lpfc_els_handle_rscn(vport);
dea3101e
JB		 2532 }
2533 }
2534 return;
2535}
2536
2537/*
2538 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
2539 * ring the match the sppecified nodelist.
2540 */
2541static void
2e0fef85 2542lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 2543{
2534ba75 2544 LIST_HEAD(completions);
dea3101e
JB		 2545 struct lpfc_sli *psli;
2546 IOCB_t *icmd;
2547 struct lpfc_iocbq *iocb, *next_iocb;
2548 struct lpfc_sli_ring *pring;
dea3101e
JB		 2549
2550 psli = &phba->sli;
2551 pring = &psli->ring[LPFC_ELS_RING];
2552
2553 /* Error matching iocb on txq or txcmplq
2554 * First check the txq.
2555 */
2e0fef85 2556 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 2557 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
2558 if (iocb->context1 != ndlp) {
2559 continue;
2560 }
2561 icmd = &iocb->iocb;
2562 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
2563 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
2564
2534ba75 2565 list_move_tail(&iocb->list, &completions);
dea3101e 2566 pring->txq_cnt--;
dea3101e
JB		 2567 }
2568 }
2569
2570 /* Next check the txcmplq */
2571 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
2572 if (iocb->context1 != ndlp) {
2573 continue;
2574 }
2575 icmd = &iocb->iocb;
2e0fef85
JS		 2576 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
2577 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
2534ba75
JS		 2578 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
2579 }
2580 }
2e0fef85 2581 spin_unlock_irq(&phba->hbalock);
dea3101e 2582
2534ba75
JS		 2583 while (!list_empty(&completions)) {
2584 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
92d7f7b0 2585 list_del_init(&iocb->list);
dea3101e 2586
2e0fef85
JS		 2587 if (!iocb->iocb_cmpl)
2588 lpfc_sli_release_iocbq(phba, iocb);
2589 else {
2534ba75
JS		 2590 icmd = &iocb->iocb;
2591 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2592 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
2593 (iocb->iocb_cmpl) (phba, iocb, iocb);
2e0fef85 2594 }
dea3101e 2595 }
dea3101e
JB		 2596}
2597
a6ababd2 2598static void
2e0fef85 2599lpfc_disc_flush_list(struct lpfc_vport *vport)
dea3101e
JB		 2600{
2601 struct lpfc_nodelist *ndlp, *next_ndlp;
2e0fef85 2602 struct lpfc_hba *phba = vport->phba;
dea3101e 2603
2e0fef85
JS		 2604 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
2605 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7 2606 nlp_listp) {
e47c9093
JS		 2607 if (!NLP_CHK_NODE_ACT(ndlp))
2608 continue;
685f0bf7
JS		 2609 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
2610 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
2611 lpfc_free_tx(phba, ndlp);
685f0bf7 2612 }
dea3101e
JB		 2613 }
2614 }
dea3101e
JB		 2615}
2616
92d7f7b0
JS		 2617void
2618lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
2619{
2620 lpfc_els_flush_rscn(vport);
2621 lpfc_els_flush_cmd(vport);
2622 lpfc_disc_flush_list(vport);
2623}
2624
dea3101e
JB		 2625/*****************************************************************************/
2626/*
2627 * NAME: lpfc_disc_timeout
2628 *
2629 * FUNCTION: Fibre Channel driver discovery timeout routine.
2630 *
2631 * EXECUTION ENVIRONMENT: interrupt only
2632 *
2633 * CALLED FROM:
2634 * Timer function
2635 *
2636 * RETURNS:
2637 * none
2638 */
2639/*****************************************************************************/
2640void
2641lpfc_disc_timeout(unsigned long ptr)
2642{
2e0fef85
JS		 2643 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
2644 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 2645 unsigned long flags = 0;
2646
2647 if (unlikely(!phba))
2648 return;
2649
2e0fef85
JS		 2650 if ((vport->work_port_events & WORKER_DISC_TMO) == 0) {
2651 spin_lock_irqsave(&vport->work_port_lock, flags);
2652 vport->work_port_events |= WORKER_DISC_TMO;
2653 spin_unlock_irqrestore(&vport->work_port_lock, flags);
2654
92d7f7b0 2655 spin_lock_irqsave(&phba->hbalock, flags);
dea3101e 2656 if (phba->work_wait)
92d7f7b0
JS		 2657 lpfc_worker_wake_up(phba);
2658 spin_unlock_irqrestore(&phba->hbalock, flags);
dea3101e 2659 }
dea3101e
JB		 2660 return;
2661}
2662
2663static void
2e0fef85 2664lpfc_disc_timeout_handler(struct lpfc_vport *vport)
dea3101e 2665{
2e0fef85
JS		 2666 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2667 struct lpfc_hba *phba = vport->phba;
2668 struct lpfc_sli *psli = &phba->sli;
c9f8735b 2669 struct lpfc_nodelist *ndlp, *next_ndlp;
92d7f7b0 2670 LPFC_MBOXQ_t *initlinkmbox;
dea3101e
JB		 2671 int rc, clrlaerr = 0;
2672
2e0fef85 2673 if (!(vport->fc_flag & FC_DISC_TMO))
dea3101e
JB		 2674 return;
2675
2e0fef85
JS		 2676 spin_lock_irq(shost->host_lock);
2677 vport->fc_flag &= ~FC_DISC_TMO;
2678 spin_unlock_irq(shost->host_lock);
dea3101e 2679
858c9f6c
JS		 2680 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2681 "disc timeout: state:x%x rtry:x%x flg:x%x",
2682 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
2683
2e0fef85 2684 switch (vport->port_state) {
dea3101e
JB		 2685
2686 case LPFC_LOCAL_CFG_LINK:
2e0fef85
JS		 2687 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
2688 * FAN
2689 */
2690 /* FAN timeout */
e8b62011
JS		 2691 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
2692 "0221 FAN timeout\n");
c9f8735b 2693 /* Start discovery by sending FLOGI, clean up old rpis */
2e0fef85 2694 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
685f0bf7 2695 nlp_listp) {
e47c9093
JS		 2696 if (!NLP_CHK_NODE_ACT(ndlp))
2697 continue;
685f0bf7
JS		 2698 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
2699 continue;
c9f8735b
JW		 2700 if (ndlp->nlp_type & NLP_FABRIC) {
2701 /* Clean up the ndlp on Fabric connections */
2e0fef85 2702 lpfc_drop_node(vport, ndlp);
87af33fe 2703
2fe165b6 2704 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
c9f8735b
JW		 2705 /* Fail outstanding IO now since device
2706 * is marked for PLOGI.
2707 */
2e0fef85 2708 lpfc_unreg_rpi(vport, ndlp);
c9f8735b
JW		 2709 }
2710 }
92d7f7b0 2711 if (vport->port_state != LPFC_FLOGI) {
92d7f7b0 2712 lpfc_initial_flogi(vport);
0ff10d46 2713 return;
92d7f7b0 2714 }
dea3101e
JB		 2715 break;
2716
92d7f7b0 2717 case LPFC_FDISC:
dea3101e 2718 case LPFC_FLOGI:
2e0fef85 2719 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
dea3101e 2720 /* Initial FLOGI timeout */
e8b62011
JS		 2721 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2722 "0222 Initial %s timeout\n",
87af33fe 2723 vport->vpi ? "FDISC" : "FLOGI");
dea3101e
JB		 2724
2725 /* Assume no Fabric and go on with discovery.
2726 * Check for outstanding ELS FLOGI to abort.
2727 */
2728
2729 /* FLOGI failed, so just use loop map to make discovery list */
2e0fef85 2730 lpfc_disc_list_loopmap(vport);
dea3101e
JB		 2731
2732 /* Start discovery */
2e0fef85 2733 lpfc_disc_start(vport);
dea3101e
JB		 2734 break;
2735
2736 case LPFC_FABRIC_CFG_LINK:
2737 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
2738 NameServer login */
e8b62011
JS		 2739 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2740 "0223 Timeout while waiting for "
2741 "NameServer login\n");
dea3101e 2742 /* Next look for NameServer ndlp */
2e0fef85 2743 ndlp = lpfc_findnode_did(vport, NameServer_DID);
e47c9093 2744 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
87af33fe
JS		 2745 lpfc_els_abort(phba, ndlp);
2746
2747 /* ReStart discovery */
2748 goto restart_disc;
dea3101e
JB		 2749
2750 case LPFC_NS_QRY:
2751 /* Check for wait for NameServer Rsp timeout */
e8b62011
JS		 2752 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2753 "0224 NameServer Query timeout "
2754 "Data: x%x x%x\n",
2755 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e 2756
92d7f7b0
JS		 2757 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
2758 /* Try it one more time */
2759 vport->fc_ns_retry++;
2760 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
2761 vport->fc_ns_retry, 0);
2762 if (rc == 0)
2763 break;
dea3101e 2764 }
92d7f7b0 2765 vport->fc_ns_retry = 0;
dea3101e 2766
87af33fe 2767restart_disc:
92d7f7b0
JS		 2768 /*
2769 * Discovery is over.
2770 * set port_state to PORT_READY if SLI2.
2771 * cmpl_reg_vpi will set port_state to READY for SLI3.
2772 */
2773 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2774 lpfc_issue_reg_vpi(phba, vport);
2775 else { /* NPIV Not enabled */
2776 lpfc_issue_clear_la(phba, vport);
2777 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 2778 }
2779
2780 /* Setup and issue mailbox INITIALIZE LINK command */
2781 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2782 if (!initlinkmbox) {
e8b62011
JS		 2783 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2784 "0206 Device Discovery "
2785 "completion error\n");
2e0fef85 2786 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 2787 break;
2788 }
2789
2790 lpfc_linkdown(phba);
2791 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
2792 phba->cfg_link_speed);
2793 initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
ed957684 2794 initlinkmbox->vport = vport;
92d7f7b0 2795 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
0b727fea 2796 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
5b8bd0c9 2797 lpfc_set_loopback_flag(phba);
dea3101e
JB		 2798 if (rc == MBX_NOT_FINISHED)
2799 mempool_free(initlinkmbox, phba->mbox_mem_pool);
2800
2801 break;
2802
2803 case LPFC_DISC_AUTH:
2804 /* Node Authentication timeout */
e8b62011
JS		 2805 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2806 "0227 Node Authentication timeout\n");
2e0fef85
JS		 2807 lpfc_disc_flush_list(vport);
2808
92d7f7b0
JS		 2809 /*
2810 * set port_state to PORT_READY if SLI2.
2811 * cmpl_reg_vpi will set port_state to READY for SLI3.
2812 */
2813 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2814 lpfc_issue_reg_vpi(phba, vport);
2815 else { /* NPIV Not enabled */
2816 lpfc_issue_clear_la(phba, vport);
2817 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 2818 }
2819 break;
2820
2e0fef85
JS		 2821 case LPFC_VPORT_READY:
2822 if (vport->fc_flag & FC_RSCN_MODE) {
e8b62011
JS		 2823 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2824 "0231 RSCN timeout Data: x%x "
2825 "x%x\n",
2826 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
dea3101e
JB		 2827
2828 /* Cleanup any outstanding ELS commands */
2e0fef85 2829 lpfc_els_flush_cmd(vport);
dea3101e 2830
2e0fef85
JS		 2831 lpfc_els_flush_rscn(vport);
2832 lpfc_disc_flush_list(vport);
dea3101e
JB		 2833 }
2834 break;
2e0fef85 2835
92d7f7b0 2836 default:
e8b62011
JS		 2837 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2838 "0229 Unexpected discovery timeout, "
2839 "vport State x%x\n", vport->port_state);
2e0fef85
JS		 2840 break;
2841 }
2842
2843 switch (phba->link_state) {
2844 case LPFC_CLEAR_LA:
92d7f7b0 2845 /* CLEAR LA timeout */
e8b62011
JS		 2846 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2847 "0228 CLEAR LA timeout\n");
2e0fef85
JS		 2848 clrlaerr = 1;
2849 break;
2850
09372820
JS		 2851 case LPFC_LINK_UP:
2852 lpfc_issue_clear_la(phba, vport);
2853 /* Drop thru */
2e0fef85
JS		 2854 case LPFC_LINK_UNKNOWN:
2855 case LPFC_WARM_START:
2856 case LPFC_INIT_START:
2857 case LPFC_INIT_MBX_CMDS:
2858 case LPFC_LINK_DOWN:
2e0fef85 2859 case LPFC_HBA_ERROR:
e8b62011
JS		 2860 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2861 "0230 Unexpected timeout, hba link "
2862 "state x%x\n", phba->link_state);
2e0fef85
JS		 2863 clrlaerr = 1;
2864 break;
92d7f7b0
JS		 2865
2866 case LPFC_HBA_READY:
2867 break;
dea3101e
JB		 2868 }
2869
2870 if (clrlaerr) {
2e0fef85 2871 lpfc_disc_flush_list(vport);
a4bc3379 2872 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
dea3101e
JB		 2873 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2874 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
2e0fef85 2875 vport->port_state = LPFC_VPORT_READY;
dea3101e
JB		 2876 }
2877
2878 return;
2879}
2880
dea3101e
JB		 2881/*
2882 * This routine handles processing a NameServer REG_LOGIN mailbox
2883 * command upon completion. It is setup in the LPFC_MBOXQ
2884 * as the completion routine when the command is
2885 * handed off to the SLI layer.
2886 */
2887void
2e0fef85 2888lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea3101e 2889{
2e0fef85
JS		 2890 MAILBOX_t *mb = &pmb->mb;
2891 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2892 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2893 struct lpfc_vport *vport = pmb->vport;
dea3101e
JB		 2894
2895 pmb->context1 = NULL;
2896
dea3101e 2897 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 2898 ndlp->nlp_type |= NLP_FABRIC;
2e0fef85 2899 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 2900
2e0fef85
JS		 2901 /*
2902 * Start issuing Fabric-Device Management Interface (FDMI) command to
2903 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
2904 * fdmi-on=2 (supporting RPA/hostnmae)
dea3101e 2905 */
2e0fef85 2906
3de2a653 2907 if (vport->cfg_fdmi_on == 1)
2e0fef85
JS		 2908 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
2909 else
2910 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
dea3101e 2911
fa4066b6
JS		 2912 /* decrement the node reference count held for this callback
2913 * function.
2914 */
329f9bc7 2915 lpfc_nlp_put(ndlp);
dea3101e
JB		 2916 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2917 kfree(mp);
329f9bc7 2918 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 2919
2920 return;
2921}
2922
685f0bf7
JS		 2923static int
2924lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
2925{
2926 uint16_t *rpi = param;
2927
2928 return ndlp->nlp_rpi == *rpi;
2929}
2930
2931static int
2932lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
2933{
2934 return memcmp(&ndlp->nlp_portname, param,
2935 sizeof(ndlp->nlp_portname)) == 0;
2936}
2937
a6ababd2 2938static struct lpfc_nodelist *
2e0fef85 2939__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
dea3101e 2940{
21568f53 2941 struct lpfc_nodelist *ndlp;
dea3101e 2942
2e0fef85 2943 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
87af33fe 2944 if (filter(ndlp, param))
685f0bf7
JS		 2945 return ndlp;
2946 }
21568f53 2947 return NULL;
dea3101e
JB		 2948}
2949
a6ababd2 2950#if 0
685f0bf7
JS		 2951/*
2952 * Search node lists for a remote port matching filter criteria
92d7f7b0 2953 * Caller needs to hold host_lock before calling this routine.
685f0bf7
JS		 2954 */
2955struct lpfc_nodelist *
2e0fef85 2956lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
685f0bf7 2957{
2e0fef85 2958 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
685f0bf7
JS		 2959 struct lpfc_nodelist *ndlp;
2960
2e0fef85
JS		 2961 spin_lock_irq(shost->host_lock);
2962 ndlp = __lpfc_find_node(vport, filter, param);
2963 spin_unlock_irq(shost->host_lock);
685f0bf7
JS		 2964 return ndlp;
2965}
a6ababd2 2966#endif /* 0 */
685f0bf7
JS		 2967
2968/*
2969 * This routine looks up the ndlp lists for the given RPI. If rpi found it
2e0fef85 2970 * returns the node list element pointer else return NULL.
685f0bf7
JS		 2971 */
2972struct lpfc_nodelist *
2e0fef85 2973__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
685f0bf7 2974{
2e0fef85 2975 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
685f0bf7
JS		 2976}
2977
a6ababd2 2978#if 0
2534ba75 2979struct lpfc_nodelist *
2e0fef85 2980lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
2534ba75 2981{
2e0fef85 2982 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2534ba75
JS		 2983 struct lpfc_nodelist *ndlp;
2984
2e0fef85
JS		 2985 spin_lock_irq(shost->host_lock);
2986 ndlp = __lpfc_findnode_rpi(vport, rpi);
2987 spin_unlock_irq(shost->host_lock);
2534ba75
JS		 2988 return ndlp;
2989}
a6ababd2 2990#endif /* 0 */
2534ba75 2991
488d1469 2992/*
685f0bf7 2993 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
2e0fef85 2994 * returns the node element list pointer else return NULL.
488d1469
JS		 2995 */
2996struct lpfc_nodelist *
2e0fef85 2997lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
488d1469 2998{
2e0fef85 2999 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
488d1469 3000 struct lpfc_nodelist *ndlp;
488d1469 3001
2e0fef85
JS		 3002 spin_lock_irq(shost->host_lock);
3003 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
3004 spin_unlock_irq(shost->host_lock);
858c9f6c 3005 return ndlp;
488d1469
JS		 3006}
3007
dea3101e 3008void
2e0fef85
JS		 3009lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3010 uint32_t did)
dea3101e
JB		 3011{
3012 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
dea3101e 3013 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
92d7f7b0 3014 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
dea3101e
JB		 3015 init_timer(&ndlp->nlp_delayfunc);
3016 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
3017 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
3018 ndlp->nlp_DID = did;
2e0fef85 3019 ndlp->vport = vport;
dea3101e 3020 ndlp->nlp_sid = NLP_NO_SID;
685f0bf7 3021 INIT_LIST_HEAD(&ndlp->nlp_listp);
329f9bc7 3022 kref_init(&ndlp->kref);
e47c9093 3023 NLP_INT_NODE_ACT(ndlp);
858c9f6c
JS		 3024
3025 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
3026 "node init: did:x%x",
3027 ndlp->nlp_DID, 0, 0);
3028
dea3101e
JB		 3029 return;
3030}
329f9bc7 3031
98c9ea5c
JS		 3032/* This routine releases all resources associated with a specifc NPort's ndlp
3033 * and mempool_free's the nodelist.
3034 */
311464ec 3035static void
329f9bc7
JS		 3036lpfc_nlp_release(struct kref *kref)
3037{
e47c9093
JS		 3038 struct lpfc_hba *phba;
3039 unsigned long flags;
329f9bc7
JS		 3040 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
3041 kref);
858c9f6c
JS		 3042
3043 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
3044 "node release: did:x%x flg:x%x type:x%x",
3045 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
3046
e47c9093
JS		 3047 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3048 "0279 lpfc_nlp_release: ndlp:x%p "
3049 "usgmap:x%x refcnt:%d\n",
3050 (void *)ndlp, ndlp->nlp_usg_map,
3051 atomic_read(&ndlp->kref.refcount));
3052
3053 /* remove ndlp from action. */
2e0fef85 3054 lpfc_nlp_remove(ndlp->vport, ndlp);
e47c9093
JS		 3055
3056 /* clear the ndlp active flag for all release cases */
3057 phba = ndlp->vport->phba;
3058 spin_lock_irqsave(&phba->ndlp_lock, flags);
3059 NLP_CLR_NODE_ACT(ndlp);
3060 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3061
3062 /* free ndlp memory for final ndlp release */
3063 if (NLP_CHK_FREE_REQ(ndlp))
3064 mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool);
329f9bc7
JS		 3065}
3066
98c9ea5c
JS		 3067/* This routine bumps the reference count for a ndlp structure to ensure
3068 * that one discovery thread won't free a ndlp while another discovery thread
3069 * is using it.
3070 */
329f9bc7
JS		 3071struct lpfc_nodelist *
3072lpfc_nlp_get(struct lpfc_nodelist *ndlp)
3073{
e47c9093
JS		 3074 struct lpfc_hba *phba;
3075 unsigned long flags;
3076
98c9ea5c
JS		 3077 if (ndlp) {
3078 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
3079 "node get: did:x%x flg:x%x refcnt:x%x",
3080 ndlp->nlp_DID, ndlp->nlp_flag,
3081 atomic_read(&ndlp->kref.refcount));
e47c9093
JS		 3082 /* The check of ndlp usage to prevent incrementing the
3083 * ndlp reference count that is in the process of being
3084 * released.
3085 */
3086 phba = ndlp->vport->phba;
3087 spin_lock_irqsave(&phba->ndlp_lock, flags);
3088 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
3089 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3090 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
3091 "0276 lpfc_nlp_get: ndlp:x%p "
3092 "usgmap:x%x refcnt:%d\n",
3093 (void *)ndlp, ndlp->nlp_usg_map,
3094 atomic_read(&ndlp->kref.refcount));
3095 return NULL;
3096 } else
3097 kref_get(&ndlp->kref);
3098 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
98c9ea5c 3099 }
329f9bc7
JS		 3100 return ndlp;
3101}
3102
98c9ea5c 3103/* This routine decrements the reference count for a ndlp structure. If the
e47c9093
JS		 3104 * count goes to 0, this indicates the the associated nodelist should be
3105 * freed. Returning 1 indicates the ndlp resource has been released; on the
3106 * other hand, returning 0 indicates the ndlp resource has not been released
3107 * yet.
98c9ea5c 3108 */
329f9bc7
JS		 3109int
3110lpfc_nlp_put(struct lpfc_nodelist *ndlp)
3111{
e47c9093
JS		 3112 struct lpfc_hba *phba;
3113 unsigned long flags;
3114
3115 if (!ndlp)
3116 return 1;
3117
3118 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
3119 "node put: did:x%x flg:x%x refcnt:x%x",
3120 ndlp->nlp_DID, ndlp->nlp_flag,
3121 atomic_read(&ndlp->kref.refcount));
3122 phba = ndlp->vport->phba;
3123 spin_lock_irqsave(&phba->ndlp_lock, flags);
3124 /* Check the ndlp memory free acknowledge flag to avoid the
3125 * possible race condition that kref_put got invoked again
3126 * after previous one has done ndlp memory free.
3127 */
3128 if (NLP_CHK_FREE_ACK(ndlp)) {
3129 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3130 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
3131 "0274 lpfc_nlp_put: ndlp:x%p "
3132 "usgmap:x%x refcnt:%d\n",
3133 (void *)ndlp, ndlp->nlp_usg_map,
3134 atomic_read(&ndlp->kref.refcount));
3135 return 1;
3136 }
3137 /* Check the ndlp inactivate log flag to avoid the possible
3138 * race condition that kref_put got invoked again after ndlp
3139 * is already in inactivating state.
3140 */
3141 if (NLP_CHK_IACT_REQ(ndlp)) {
3142 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3143 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
3144 "0275 lpfc_nlp_put: ndlp:x%p "
3145 "usgmap:x%x refcnt:%d\n",
3146 (void *)ndlp, ndlp->nlp_usg_map,
3147 atomic_read(&ndlp->kref.refcount));
3148 return 1;
98c9ea5c 3149 }
e47c9093
JS		 3150 /* For last put, mark the ndlp usage flags to make sure no
3151 * other kref_get and kref_put on the same ndlp shall get
3152 * in between the process when the final kref_put has been
3153 * invoked on this ndlp.
3154 */
3155 if (atomic_read(&ndlp->kref.refcount) == 1) {
3156 /* Indicate ndlp is put to inactive state. */
3157 NLP_SET_IACT_REQ(ndlp);
3158 /* Acknowledge ndlp memory free has been seen. */
3159 if (NLP_CHK_FREE_REQ(ndlp))
3160 NLP_SET_FREE_ACK(ndlp);
3161 }
3162 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3163 /* Note, the kref_put returns 1 when decrementing a reference
3164 * count that was 1, it invokes the release callback function,
3165 * but it still left the reference count as 1 (not actually
3166 * performs the last decrementation). Otherwise, it actually
3167 * decrements the reference count and returns 0.
3168 */
3169 return kref_put(&ndlp->kref, lpfc_nlp_release);
329f9bc7 3170}
98c9ea5c
JS		 3171
3172/* This routine free's the specified nodelist if it is not in use
e47c9093
JS		 3173 * by any other discovery thread. This routine returns 1 if the
3174 * ndlp has been freed. A return value of 0 indicates the ndlp is
3175 * not yet been released.
98c9ea5c
JS		 3176 */
3177int
3178lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
3179{
3180 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
3181 "node not used: did:x%x flg:x%x refcnt:x%x",
3182 ndlp->nlp_DID, ndlp->nlp_flag,
3183 atomic_read(&ndlp->kref.refcount));
e47c9093
JS		 3184 if (atomic_read(&ndlp->kref.refcount) == 1)
3185 if (lpfc_nlp_put(ndlp))
3186 return 1;
98c9ea5c
JS		 3187 return 0;
3188}
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