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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
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. *
20 *******************************************************************/
21
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/kthread.h>
25 #include <linux/interrupt.h>
26
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_transport_fc.h>
31
32 #include "lpfc_hw4.h"
33 #include "lpfc_hw.h"
34 #include "lpfc_nl.h"
35 #include "lpfc_disc.h"
36 #include "lpfc_sli.h"
37 #include "lpfc_sli4.h"
38 #include "lpfc_scsi.h"
39 #include "lpfc.h"
40 #include "lpfc_logmsg.h"
41 #include "lpfc_crtn.h"
42 #include "lpfc_vport.h"
43 #include "lpfc_debugfs.h"
44
45 /* AlpaArray for assignment of scsid for scan-down and bind_method */
46 static uint8_t lpfcAlpaArray[] = {
47 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
48 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
49 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
50 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
51 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
52 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
53 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
54 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
55 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
56 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
57 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
58 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
59 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
60 };
61
62 static void lpfc_disc_timeout_handler(struct lpfc_vport *);
63 static void lpfc_disc_flush_list(struct lpfc_vport *vport);
64 static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
65
66 void
67 lpfc_terminate_rport_io(struct fc_rport *rport)
68 {
69 struct lpfc_rport_data *rdata;
70 struct lpfc_nodelist * ndlp;
71 struct lpfc_hba *phba;
72
73 rdata = rport->dd_data;
74 ndlp = rdata->pnode;
75
76 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
77 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
78 printk(KERN_ERR "Cannot find remote node"
79 " to terminate I/O Data x%x\n",
80 rport->port_id);
81 return;
82 }
83
84 phba = ndlp->phba;
85
86 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
87 "rport terminate: sid:x%x did:x%x flg:x%x",
88 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
89
90 if (ndlp->nlp_sid != NLP_NO_SID) {
91 lpfc_sli_abort_iocb(ndlp->vport,
92 &phba->sli.ring[phba->sli.fcp_ring],
93 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
94 }
95 }
96
97 /*
98 * This function will be called when dev_loss_tmo fire.
99 */
100 void
101 lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
102 {
103 struct lpfc_rport_data *rdata;
104 struct lpfc_nodelist * ndlp;
105 struct lpfc_vport *vport;
106 struct lpfc_hba *phba;
107 struct lpfc_work_evt *evtp;
108 int put_node;
109 int put_rport;
110
111 rdata = rport->dd_data;
112 ndlp = rdata->pnode;
113 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
114 return;
115
116 vport = ndlp->vport;
117 phba = vport->phba;
118
119 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
120 "rport devlosscb: sid:x%x did:x%x flg:x%x",
121 ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
122
123 /* Don't defer this if we are in the process of deleting the vport
124 * or unloading the driver. The unload will cleanup the node
125 * appropriately we just need to cleanup the ndlp rport info here.
126 */
127 if (vport->load_flag & FC_UNLOADING) {
128 put_node = rdata->pnode != NULL;
129 put_rport = ndlp->rport != NULL;
130 rdata->pnode = NULL;
131 ndlp->rport = NULL;
132 if (put_node)
133 lpfc_nlp_put(ndlp);
134 if (put_rport)
135 put_device(&rport->dev);
136 return;
137 }
138
139 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
140 return;
141
142 evtp = &ndlp->dev_loss_evt;
143
144 if (!list_empty(&evtp->evt_listp))
145 return;
146
147 spin_lock_irq(&phba->hbalock);
148 /* We need to hold the node by incrementing the reference
149 * count until this queued work is done
150 */
151 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
152 if (evtp->evt_arg1) {
153 evtp->evt = LPFC_EVT_DEV_LOSS;
154 list_add_tail(&evtp->evt_listp, &phba->work_list);
155 lpfc_worker_wake_up(phba);
156 }
157 spin_unlock_irq(&phba->hbalock);
158
159 return;
160 }
161
162 /*
163 * This function is called from the worker thread when dev_loss_tmo
164 * expire.
165 */
166 static void
167 lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
168 {
169 struct lpfc_rport_data *rdata;
170 struct fc_rport *rport;
171 struct lpfc_vport *vport;
172 struct lpfc_hba *phba;
173 uint8_t *name;
174 int put_node;
175 int put_rport;
176 int warn_on = 0;
177
178 rport = ndlp->rport;
179
180 if (!rport)
181 return;
182
183 rdata = rport->dd_data;
184 name = (uint8_t *) &ndlp->nlp_portname;
185 vport = ndlp->vport;
186 phba = vport->phba;
187
188 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
189 "rport devlosstmo:did:x%x type:x%x id:x%x",
190 ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
191
192 /* Don't defer this if we are in the process of deleting the vport
193 * or unloading the driver. The unload will cleanup the node
194 * appropriately we just need to cleanup the ndlp rport info here.
195 */
196 if (vport->load_flag & FC_UNLOADING) {
197 if (ndlp->nlp_sid != NLP_NO_SID) {
198 /* flush the target */
199 lpfc_sli_abort_iocb(vport,
200 &phba->sli.ring[phba->sli.fcp_ring],
201 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
202 }
203 put_node = rdata->pnode != NULL;
204 put_rport = ndlp->rport != NULL;
205 rdata->pnode = NULL;
206 ndlp->rport = NULL;
207 if (put_node)
208 lpfc_nlp_put(ndlp);
209 if (put_rport)
210 put_device(&rport->dev);
211 return;
212 }
213
214 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
215 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
216 "0284 Devloss timeout Ignored on "
217 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
218 "NPort x%x\n",
219 *name, *(name+1), *(name+2), *(name+3),
220 *(name+4), *(name+5), *(name+6), *(name+7),
221 ndlp->nlp_DID);
222 return;
223 }
224
225 if (ndlp->nlp_type & NLP_FABRIC) {
226 /* We will clean up these Nodes in linkup */
227 put_node = rdata->pnode != NULL;
228 put_rport = ndlp->rport != NULL;
229 rdata->pnode = NULL;
230 ndlp->rport = NULL;
231 if (put_node)
232 lpfc_nlp_put(ndlp);
233 if (put_rport)
234 put_device(&rport->dev);
235 return;
236 }
237
238 if (ndlp->nlp_sid != NLP_NO_SID) {
239 warn_on = 1;
240 /* flush the target */
241 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
242 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
243 }
244
245 if (warn_on) {
246 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
247 "0203 Devloss timeout on "
248 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
249 "NPort x%06x Data: x%x x%x x%x\n",
250 *name, *(name+1), *(name+2), *(name+3),
251 *(name+4), *(name+5), *(name+6), *(name+7),
252 ndlp->nlp_DID, ndlp->nlp_flag,
253 ndlp->nlp_state, ndlp->nlp_rpi);
254 } else {
255 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
256 "0204 Devloss timeout on "
257 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
258 "NPort x%06x Data: x%x x%x x%x\n",
259 *name, *(name+1), *(name+2), *(name+3),
260 *(name+4), *(name+5), *(name+6), *(name+7),
261 ndlp->nlp_DID, ndlp->nlp_flag,
262 ndlp->nlp_state, ndlp->nlp_rpi);
263 }
264
265 put_node = rdata->pnode != NULL;
266 put_rport = ndlp->rport != NULL;
267 rdata->pnode = NULL;
268 ndlp->rport = NULL;
269 if (put_node)
270 lpfc_nlp_put(ndlp);
271 if (put_rport)
272 put_device(&rport->dev);
273
274 if (!(vport->load_flag & FC_UNLOADING) &&
275 !(ndlp->nlp_flag & NLP_DELAY_TMO) &&
276 !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
277 (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE))
278 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
279
280 lpfc_unregister_unused_fcf(phba);
281 }
282
283 /**
284 * lpfc_alloc_fast_evt - Allocates data structure for posting event
285 * @phba: Pointer to hba context object.
286 *
287 * This function is called from the functions which need to post
288 * events from interrupt context. This function allocates data
289 * structure required for posting event. It also keeps track of
290 * number of events pending and prevent event storm when there are
291 * too many events.
292 **/
293 struct lpfc_fast_path_event *
294 lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
295 struct lpfc_fast_path_event *ret;
296
297 /* If there are lot of fast event do not exhaust memory due to this */
298 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
299 return NULL;
300
301 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
302 GFP_ATOMIC);
303 if (ret) {
304 atomic_inc(&phba->fast_event_count);
305 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
306 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
307 }
308 return ret;
309 }
310
311 /**
312 * lpfc_free_fast_evt - Frees event data structure
313 * @phba: Pointer to hba context object.
314 * @evt: Event object which need to be freed.
315 *
316 * This function frees the data structure required for posting
317 * events.
318 **/
319 void
320 lpfc_free_fast_evt(struct lpfc_hba *phba,
321 struct lpfc_fast_path_event *evt) {
322
323 atomic_dec(&phba->fast_event_count);
324 kfree(evt);
325 }
326
327 /**
328 * lpfc_send_fastpath_evt - Posts events generated from fast path
329 * @phba: Pointer to hba context object.
330 * @evtp: Event data structure.
331 *
332 * This function is called from worker thread, when the interrupt
333 * context need to post an event. This function posts the event
334 * to fc transport netlink interface.
335 **/
336 static void
337 lpfc_send_fastpath_evt(struct lpfc_hba *phba,
338 struct lpfc_work_evt *evtp)
339 {
340 unsigned long evt_category, evt_sub_category;
341 struct lpfc_fast_path_event *fast_evt_data;
342 char *evt_data;
343 uint32_t evt_data_size;
344 struct Scsi_Host *shost;
345
346 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
347 work_evt);
348
349 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
350 evt_sub_category = (unsigned long) fast_evt_data->un.
351 fabric_evt.subcategory;
352 shost = lpfc_shost_from_vport(fast_evt_data->vport);
353 if (evt_category == FC_REG_FABRIC_EVENT) {
354 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
355 evt_data = (char *) &fast_evt_data->un.read_check_error;
356 evt_data_size = sizeof(fast_evt_data->un.
357 read_check_error);
358 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
359 (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
360 evt_data = (char *) &fast_evt_data->un.fabric_evt;
361 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
362 } else {
363 lpfc_free_fast_evt(phba, fast_evt_data);
364 return;
365 }
366 } else if (evt_category == FC_REG_SCSI_EVENT) {
367 switch (evt_sub_category) {
368 case LPFC_EVENT_QFULL:
369 case LPFC_EVENT_DEVBSY:
370 evt_data = (char *) &fast_evt_data->un.scsi_evt;
371 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
372 break;
373 case LPFC_EVENT_CHECK_COND:
374 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
375 evt_data_size = sizeof(fast_evt_data->un.
376 check_cond_evt);
377 break;
378 case LPFC_EVENT_VARQUEDEPTH:
379 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
380 evt_data_size = sizeof(fast_evt_data->un.
381 queue_depth_evt);
382 break;
383 default:
384 lpfc_free_fast_evt(phba, fast_evt_data);
385 return;
386 }
387 } else {
388 lpfc_free_fast_evt(phba, fast_evt_data);
389 return;
390 }
391
392 fc_host_post_vendor_event(shost,
393 fc_get_event_number(),
394 evt_data_size,
395 evt_data,
396 LPFC_NL_VENDOR_ID);
397
398 lpfc_free_fast_evt(phba, fast_evt_data);
399 return;
400 }
401
402 static void
403 lpfc_work_list_done(struct lpfc_hba *phba)
404 {
405 struct lpfc_work_evt *evtp = NULL;
406 struct lpfc_nodelist *ndlp;
407 int free_evt;
408
409 spin_lock_irq(&phba->hbalock);
410 while (!list_empty(&phba->work_list)) {
411 list_remove_head((&phba->work_list), evtp, typeof(*evtp),
412 evt_listp);
413 spin_unlock_irq(&phba->hbalock);
414 free_evt = 1;
415 switch (evtp->evt) {
416 case LPFC_EVT_ELS_RETRY:
417 ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
418 lpfc_els_retry_delay_handler(ndlp);
419 free_evt = 0; /* evt is part of ndlp */
420 /* decrement the node reference count held
421 * for this queued work
422 */
423 lpfc_nlp_put(ndlp);
424 break;
425 case LPFC_EVT_DEV_LOSS:
426 ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
427 lpfc_dev_loss_tmo_handler(ndlp);
428 free_evt = 0;
429 /* decrement the node reference count held for
430 * this queued work
431 */
432 lpfc_nlp_put(ndlp);
433 break;
434 case LPFC_EVT_ONLINE:
435 if (phba->link_state < LPFC_LINK_DOWN)
436 *(int *) (evtp->evt_arg1) = lpfc_online(phba);
437 else
438 *(int *) (evtp->evt_arg1) = 0;
439 complete((struct completion *)(evtp->evt_arg2));
440 break;
441 case LPFC_EVT_OFFLINE_PREP:
442 if (phba->link_state >= LPFC_LINK_DOWN)
443 lpfc_offline_prep(phba);
444 *(int *)(evtp->evt_arg1) = 0;
445 complete((struct completion *)(evtp->evt_arg2));
446 break;
447 case LPFC_EVT_OFFLINE:
448 lpfc_offline(phba);
449 lpfc_sli_brdrestart(phba);
450 *(int *)(evtp->evt_arg1) =
451 lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
452 lpfc_unblock_mgmt_io(phba);
453 complete((struct completion *)(evtp->evt_arg2));
454 break;
455 case LPFC_EVT_WARM_START:
456 lpfc_offline(phba);
457 lpfc_reset_barrier(phba);
458 lpfc_sli_brdreset(phba);
459 lpfc_hba_down_post(phba);
460 *(int *)(evtp->evt_arg1) =
461 lpfc_sli_brdready(phba, HS_MBRDY);
462 lpfc_unblock_mgmt_io(phba);
463 complete((struct completion *)(evtp->evt_arg2));
464 break;
465 case LPFC_EVT_KILL:
466 lpfc_offline(phba);
467 *(int *)(evtp->evt_arg1)
468 = (phba->pport->stopped)
469 ? 0 : lpfc_sli_brdkill(phba);
470 lpfc_unblock_mgmt_io(phba);
471 complete((struct completion *)(evtp->evt_arg2));
472 break;
473 case LPFC_EVT_FASTPATH_MGMT_EVT:
474 lpfc_send_fastpath_evt(phba, evtp);
475 free_evt = 0;
476 break;
477 }
478 if (free_evt)
479 kfree(evtp);
480 spin_lock_irq(&phba->hbalock);
481 }
482 spin_unlock_irq(&phba->hbalock);
483
484 }
485
486 static void
487 lpfc_work_done(struct lpfc_hba *phba)
488 {
489 struct lpfc_sli_ring *pring;
490 uint32_t ha_copy, status, control, work_port_events;
491 struct lpfc_vport **vports;
492 struct lpfc_vport *vport;
493 int i;
494
495 spin_lock_irq(&phba->hbalock);
496 ha_copy = phba->work_ha;
497 phba->work_ha = 0;
498 spin_unlock_irq(&phba->hbalock);
499
500 /* First, try to post the next mailbox command to SLI4 device */
501 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
502 lpfc_sli4_post_async_mbox(phba);
503
504 if (ha_copy & HA_ERATT)
505 /* Handle the error attention event */
506 lpfc_handle_eratt(phba);
507
508 if (ha_copy & HA_MBATT)
509 lpfc_sli_handle_mb_event(phba);
510
511 if (ha_copy & HA_LATT)
512 lpfc_handle_latt(phba);
513
514 /* Process SLI4 events */
515 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
516 if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
517 lpfc_sli4_fcp_xri_abort_event_proc(phba);
518 if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
519 lpfc_sli4_els_xri_abort_event_proc(phba);
520 if (phba->hba_flag & ASYNC_EVENT)
521 lpfc_sli4_async_event_proc(phba);
522 if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
523 spin_lock_irq(&phba->hbalock);
524 phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
525 spin_unlock_irq(&phba->hbalock);
526 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
527 }
528 }
529
530 vports = lpfc_create_vport_work_array(phba);
531 if (vports != NULL)
532 for (i = 0; i <= phba->max_vports; i++) {
533 /*
534 * We could have no vports in array if unloading, so if
535 * this happens then just use the pport
536 */
537 if (vports[i] == NULL && i == 0)
538 vport = phba->pport;
539 else
540 vport = vports[i];
541 if (vport == NULL)
542 break;
543 spin_lock_irq(&vport->work_port_lock);
544 work_port_events = vport->work_port_events;
545 vport->work_port_events &= ~work_port_events;
546 spin_unlock_irq(&vport->work_port_lock);
547 if (work_port_events & WORKER_DISC_TMO)
548 lpfc_disc_timeout_handler(vport);
549 if (work_port_events & WORKER_ELS_TMO)
550 lpfc_els_timeout_handler(vport);
551 if (work_port_events & WORKER_HB_TMO)
552 lpfc_hb_timeout_handler(phba);
553 if (work_port_events & WORKER_MBOX_TMO)
554 lpfc_mbox_timeout_handler(phba);
555 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
556 lpfc_unblock_fabric_iocbs(phba);
557 if (work_port_events & WORKER_FDMI_TMO)
558 lpfc_fdmi_timeout_handler(vport);
559 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
560 lpfc_ramp_down_queue_handler(phba);
561 if (work_port_events & WORKER_RAMP_UP_QUEUE)
562 lpfc_ramp_up_queue_handler(phba);
563 }
564 lpfc_destroy_vport_work_array(phba, vports);
565
566 pring = &phba->sli.ring[LPFC_ELS_RING];
567 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
568 status >>= (4*LPFC_ELS_RING);
569 if ((status & HA_RXMASK) ||
570 (pring->flag & LPFC_DEFERRED_RING_EVENT) ||
571 (phba->hba_flag & HBA_SP_QUEUE_EVT)) {
572 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
573 pring->flag |= LPFC_DEFERRED_RING_EVENT;
574 /* Set the lpfc data pending flag */
575 set_bit(LPFC_DATA_READY, &phba->data_flags);
576 } else {
577 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
578 lpfc_sli_handle_slow_ring_event(phba, pring,
579 (status &
580 HA_RXMASK));
581 }
582 /*
583 * Turn on Ring interrupts
584 */
585 if (phba->sli_rev <= LPFC_SLI_REV3) {
586 spin_lock_irq(&phba->hbalock);
587 control = readl(phba->HCregaddr);
588 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
589 lpfc_debugfs_slow_ring_trc(phba,
590 "WRK Enable ring: cntl:x%x hacopy:x%x",
591 control, ha_copy, 0);
592
593 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
594 writel(control, phba->HCregaddr);
595 readl(phba->HCregaddr); /* flush */
596 } else {
597 lpfc_debugfs_slow_ring_trc(phba,
598 "WRK Ring ok: cntl:x%x hacopy:x%x",
599 control, ha_copy, 0);
600 }
601 spin_unlock_irq(&phba->hbalock);
602 }
603 }
604 lpfc_work_list_done(phba);
605 }
606
607 int
608 lpfc_do_work(void *p)
609 {
610 struct lpfc_hba *phba = p;
611 int rc;
612
613 set_user_nice(current, -20);
614 phba->data_flags = 0;
615
616 while (!kthread_should_stop()) {
617 /* wait and check worker queue activities */
618 rc = wait_event_interruptible(phba->work_waitq,
619 (test_and_clear_bit(LPFC_DATA_READY,
620 &phba->data_flags)
621 || kthread_should_stop()));
622 /* Signal wakeup shall terminate the worker thread */
623 if (rc) {
624 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
625 "0433 Wakeup on signal: rc=x%x\n", rc);
626 break;
627 }
628
629 /* Attend pending lpfc data processing */
630 lpfc_work_done(phba);
631 }
632 phba->worker_thread = NULL;
633 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
634 "0432 Worker thread stopped.\n");
635 return 0;
636 }
637
638 /*
639 * This is only called to handle FC worker events. Since this a rare
640 * occurance, we allocate a struct lpfc_work_evt structure here instead of
641 * embedding it in the IOCB.
642 */
643 int
644 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
645 uint32_t evt)
646 {
647 struct lpfc_work_evt *evtp;
648 unsigned long flags;
649
650 /*
651 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
652 * be queued to worker thread for processing
653 */
654 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
655 if (!evtp)
656 return 0;
657
658 evtp->evt_arg1 = arg1;
659 evtp->evt_arg2 = arg2;
660 evtp->evt = evt;
661
662 spin_lock_irqsave(&phba->hbalock, flags);
663 list_add_tail(&evtp->evt_listp, &phba->work_list);
664 spin_unlock_irqrestore(&phba->hbalock, flags);
665
666 lpfc_worker_wake_up(phba);
667
668 return 1;
669 }
670
671 void
672 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
673 {
674 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
675 struct lpfc_hba *phba = vport->phba;
676 struct lpfc_nodelist *ndlp, *next_ndlp;
677 int rc;
678
679 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
680 if (!NLP_CHK_NODE_ACT(ndlp))
681 continue;
682 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
683 continue;
684 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
685 ((vport->port_type == LPFC_NPIV_PORT) &&
686 (ndlp->nlp_DID == NameServer_DID)))
687 lpfc_unreg_rpi(vport, ndlp);
688
689 /* Leave Fabric nodes alone on link down */
690 if ((phba->sli_rev < LPFC_SLI_REV4) &&
691 (!remove && ndlp->nlp_type & NLP_FABRIC))
692 continue;
693 rc = lpfc_disc_state_machine(vport, ndlp, NULL,
694 remove
695 ? NLP_EVT_DEVICE_RM
696 : NLP_EVT_DEVICE_RECOVERY);
697 }
698 if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
699 lpfc_mbx_unreg_vpi(vport);
700 spin_lock_irq(shost->host_lock);
701 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
702 spin_unlock_irq(shost->host_lock);
703 }
704 }
705
706 void
707 lpfc_port_link_failure(struct lpfc_vport *vport)
708 {
709 /* Cleanup any outstanding received buffers */
710 lpfc_cleanup_rcv_buffers(vport);
711
712 /* Cleanup any outstanding RSCN activity */
713 lpfc_els_flush_rscn(vport);
714
715 /* Cleanup any outstanding ELS commands */
716 lpfc_els_flush_cmd(vport);
717
718 lpfc_cleanup_rpis(vport, 0);
719
720 /* Turn off discovery timer if its running */
721 lpfc_can_disctmo(vport);
722 }
723
724 void
725 lpfc_linkdown_port(struct lpfc_vport *vport)
726 {
727 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
728
729 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
730
731 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
732 "Link Down: state:x%x rtry:x%x flg:x%x",
733 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
734
735 lpfc_port_link_failure(vport);
736
737 }
738
739 int
740 lpfc_linkdown(struct lpfc_hba *phba)
741 {
742 struct lpfc_vport *vport = phba->pport;
743 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
744 struct lpfc_vport **vports;
745 LPFC_MBOXQ_t *mb;
746 int i;
747
748 if (phba->link_state == LPFC_LINK_DOWN)
749 return 0;
750 spin_lock_irq(&phba->hbalock);
751 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_DISCOVERED);
752 if (phba->link_state > LPFC_LINK_DOWN) {
753 phba->link_state = LPFC_LINK_DOWN;
754 phba->pport->fc_flag &= ~FC_LBIT;
755 }
756 spin_unlock_irq(&phba->hbalock);
757 vports = lpfc_create_vport_work_array(phba);
758 if (vports != NULL)
759 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
760 /* Issue a LINK DOWN event to all nodes */
761 lpfc_linkdown_port(vports[i]);
762 }
763 lpfc_destroy_vport_work_array(phba, vports);
764 /* Clean up any firmware default rpi's */
765 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
766 if (mb) {
767 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
768 mb->vport = vport;
769 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
770 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
771 == MBX_NOT_FINISHED) {
772 mempool_free(mb, phba->mbox_mem_pool);
773 }
774 }
775
776 /* Setup myDID for link up if we are in pt2pt mode */
777 if (phba->pport->fc_flag & FC_PT2PT) {
778 phba->pport->fc_myDID = 0;
779 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
780 if (mb) {
781 lpfc_config_link(phba, mb);
782 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
783 mb->vport = vport;
784 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
785 == MBX_NOT_FINISHED) {
786 mempool_free(mb, phba->mbox_mem_pool);
787 }
788 }
789 spin_lock_irq(shost->host_lock);
790 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
791 spin_unlock_irq(shost->host_lock);
792 }
793
794 return 0;
795 }
796
797 static void
798 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
799 {
800 struct lpfc_nodelist *ndlp;
801
802 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
803 if (!NLP_CHK_NODE_ACT(ndlp))
804 continue;
805 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
806 continue;
807 if (ndlp->nlp_type & NLP_FABRIC) {
808 /* On Linkup its safe to clean up the ndlp
809 * from Fabric connections.
810 */
811 if (ndlp->nlp_DID != Fabric_DID)
812 lpfc_unreg_rpi(vport, ndlp);
813 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
814 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
815 /* Fail outstanding IO now since device is
816 * marked for PLOGI.
817 */
818 lpfc_unreg_rpi(vport, ndlp);
819 }
820 }
821 }
822
823 static void
824 lpfc_linkup_port(struct lpfc_vport *vport)
825 {
826 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
827 struct lpfc_hba *phba = vport->phba;
828
829 if ((vport->load_flag & FC_UNLOADING) != 0)
830 return;
831
832 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
833 "Link Up: top:x%x speed:x%x flg:x%x",
834 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
835
836 /* If NPIV is not enabled, only bring the physical port up */
837 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
838 (vport != phba->pport))
839 return;
840
841 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
842
843 spin_lock_irq(shost->host_lock);
844 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
845 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
846 vport->fc_flag |= FC_NDISC_ACTIVE;
847 vport->fc_ns_retry = 0;
848 spin_unlock_irq(shost->host_lock);
849
850 if (vport->fc_flag & FC_LBIT)
851 lpfc_linkup_cleanup_nodes(vport);
852
853 }
854
855 static int
856 lpfc_linkup(struct lpfc_hba *phba)
857 {
858 struct lpfc_vport **vports;
859 int i;
860
861 phba->link_state = LPFC_LINK_UP;
862
863 /* Unblock fabric iocbs if they are blocked */
864 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
865 del_timer_sync(&phba->fabric_block_timer);
866
867 vports = lpfc_create_vport_work_array(phba);
868 if (vports != NULL)
869 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
870 lpfc_linkup_port(vports[i]);
871 lpfc_destroy_vport_work_array(phba, vports);
872 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
873 (phba->sli_rev < LPFC_SLI_REV4))
874 lpfc_issue_clear_la(phba, phba->pport);
875
876 return 0;
877 }
878
879 /*
880 * This routine handles processing a CLEAR_LA mailbox
881 * command upon completion. It is setup in the LPFC_MBOXQ
882 * as the completion routine when the command is
883 * handed off to the SLI layer.
884 */
885 static void
886 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
887 {
888 struct lpfc_vport *vport = pmb->vport;
889 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
890 struct lpfc_sli *psli = &phba->sli;
891 MAILBOX_t *mb = &pmb->u.mb;
892 uint32_t control;
893
894 /* Since we don't do discovery right now, turn these off here */
895 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
896 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
897 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
898
899 /* Check for error */
900 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
901 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
902 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
903 "0320 CLEAR_LA mbxStatus error x%x hba "
904 "state x%x\n",
905 mb->mbxStatus, vport->port_state);
906 phba->link_state = LPFC_HBA_ERROR;
907 goto out;
908 }
909
910 if (vport->port_type == LPFC_PHYSICAL_PORT)
911 phba->link_state = LPFC_HBA_READY;
912
913 spin_lock_irq(&phba->hbalock);
914 psli->sli_flag |= LPFC_PROCESS_LA;
915 control = readl(phba->HCregaddr);
916 control |= HC_LAINT_ENA;
917 writel(control, phba->HCregaddr);
918 readl(phba->HCregaddr); /* flush */
919 spin_unlock_irq(&phba->hbalock);
920 mempool_free(pmb, phba->mbox_mem_pool);
921 return;
922
923 out:
924 /* Device Discovery completes */
925 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
926 "0225 Device Discovery completes\n");
927 mempool_free(pmb, phba->mbox_mem_pool);
928
929 spin_lock_irq(shost->host_lock);
930 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
931 spin_unlock_irq(shost->host_lock);
932
933 lpfc_can_disctmo(vport);
934
935 /* turn on Link Attention interrupts */
936
937 spin_lock_irq(&phba->hbalock);
938 psli->sli_flag |= LPFC_PROCESS_LA;
939 control = readl(phba->HCregaddr);
940 control |= HC_LAINT_ENA;
941 writel(control, phba->HCregaddr);
942 readl(phba->HCregaddr); /* flush */
943 spin_unlock_irq(&phba->hbalock);
944
945 return;
946 }
947
948
949 static void
950 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
951 {
952 struct lpfc_vport *vport = pmb->vport;
953
954 if (pmb->u.mb.mbxStatus)
955 goto out;
956
957 mempool_free(pmb, phba->mbox_mem_pool);
958
959 if (phba->fc_topology == TOPOLOGY_LOOP &&
960 vport->fc_flag & FC_PUBLIC_LOOP &&
961 !(vport->fc_flag & FC_LBIT)) {
962 /* Need to wait for FAN - use discovery timer
963 * for timeout. port_state is identically
964 * LPFC_LOCAL_CFG_LINK while waiting for FAN
965 */
966 lpfc_set_disctmo(vport);
967 return;
968 }
969
970 /* Start discovery by sending a FLOGI. port_state is identically
971 * LPFC_FLOGI while waiting for FLOGI cmpl
972 */
973 if (vport->port_state != LPFC_FLOGI) {
974 lpfc_initial_flogi(vport);
975 }
976 return;
977
978 out:
979 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
980 "0306 CONFIG_LINK mbxStatus error x%x "
981 "HBA state x%x\n",
982 pmb->u.mb.mbxStatus, vport->port_state);
983 mempool_free(pmb, phba->mbox_mem_pool);
984
985 lpfc_linkdown(phba);
986
987 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
988 "0200 CONFIG_LINK bad hba state x%x\n",
989 vport->port_state);
990
991 lpfc_issue_clear_la(phba, vport);
992 return;
993 }
994
995 static void
996 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
997 {
998 struct lpfc_vport *vport = mboxq->vport;
999 unsigned long flags;
1000
1001 if (mboxq->u.mb.mbxStatus) {
1002 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1003 "2017 REG_FCFI mbxStatus error x%x "
1004 "HBA state x%x\n",
1005 mboxq->u.mb.mbxStatus, vport->port_state);
1006 mempool_free(mboxq, phba->mbox_mem_pool);
1007 return;
1008 }
1009
1010 /* Start FCoE discovery by sending a FLOGI. */
1011 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1012 /* Set the FCFI registered flag */
1013 spin_lock_irqsave(&phba->hbalock, flags);
1014 phba->fcf.fcf_flag |= FCF_REGISTERED;
1015 spin_unlock_irqrestore(&phba->hbalock, flags);
1016 /* If there is a pending FCoE event, restart FCF table scan. */
1017 if (lpfc_check_pending_fcoe_event(phba, 1)) {
1018 mempool_free(mboxq, phba->mbox_mem_pool);
1019 return;
1020 }
1021 spin_lock_irqsave(&phba->hbalock, flags);
1022 phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE);
1023 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1024 spin_unlock_irqrestore(&phba->hbalock, flags);
1025 if (vport->port_state != LPFC_FLOGI)
1026 lpfc_initial_flogi(vport);
1027
1028 mempool_free(mboxq, phba->mbox_mem_pool);
1029 return;
1030 }
1031
1032 /**
1033 * lpfc_fab_name_match - Check if the fcf fabric name match.
1034 * @fab_name: pointer to fabric name.
1035 * @new_fcf_record: pointer to fcf record.
1036 *
1037 * This routine compare the fcf record's fabric name with provided
1038 * fabric name. If the fabric name are identical this function
1039 * returns 1 else return 0.
1040 **/
1041 static uint32_t
1042 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1043 {
1044 if ((fab_name[0] ==
1045 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) &&
1046 (fab_name[1] ==
1047 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) &&
1048 (fab_name[2] ==
1049 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) &&
1050 (fab_name[3] ==
1051 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) &&
1052 (fab_name[4] ==
1053 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) &&
1054 (fab_name[5] ==
1055 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) &&
1056 (fab_name[6] ==
1057 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) &&
1058 (fab_name[7] ==
1059 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)))
1060 return 1;
1061 else
1062 return 0;
1063 }
1064
1065 /**
1066 * lpfc_sw_name_match - Check if the fcf switch name match.
1067 * @fab_name: pointer to fabric name.
1068 * @new_fcf_record: pointer to fcf record.
1069 *
1070 * This routine compare the fcf record's switch name with provided
1071 * switch name. If the switch name are identical this function
1072 * returns 1 else return 0.
1073 **/
1074 static uint32_t
1075 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1076 {
1077 if ((sw_name[0] ==
1078 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) &&
1079 (sw_name[1] ==
1080 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) &&
1081 (sw_name[2] ==
1082 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) &&
1083 (sw_name[3] ==
1084 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) &&
1085 (sw_name[4] ==
1086 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) &&
1087 (sw_name[5] ==
1088 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) &&
1089 (sw_name[6] ==
1090 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) &&
1091 (sw_name[7] ==
1092 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)))
1093 return 1;
1094 else
1095 return 0;
1096 }
1097
1098 /**
1099 * lpfc_mac_addr_match - Check if the fcf mac address match.
1100 * @phba: pointer to lpfc hba data structure.
1101 * @new_fcf_record: pointer to fcf record.
1102 *
1103 * This routine compare the fcf record's mac address with HBA's
1104 * FCF mac address. If the mac addresses are identical this function
1105 * returns 1 else return 0.
1106 **/
1107 static uint32_t
1108 lpfc_mac_addr_match(struct lpfc_hba *phba, struct fcf_record *new_fcf_record)
1109 {
1110 if ((phba->fcf.mac_addr[0] ==
1111 bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) &&
1112 (phba->fcf.mac_addr[1] ==
1113 bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) &&
1114 (phba->fcf.mac_addr[2] ==
1115 bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) &&
1116 (phba->fcf.mac_addr[3] ==
1117 bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) &&
1118 (phba->fcf.mac_addr[4] ==
1119 bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) &&
1120 (phba->fcf.mac_addr[5] ==
1121 bf_get(lpfc_fcf_record_mac_5, new_fcf_record)))
1122 return 1;
1123 else
1124 return 0;
1125 }
1126
1127 /**
1128 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1129 * @phba: pointer to lpfc hba data structure.
1130 * @new_fcf_record: pointer to fcf record.
1131 *
1132 * This routine copies the FCF information from the FCF
1133 * record to lpfc_hba data structure.
1134 **/
1135 static void
1136 lpfc_copy_fcf_record(struct lpfc_hba *phba, struct fcf_record *new_fcf_record)
1137 {
1138 phba->fcf.fabric_name[0] =
1139 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
1140 phba->fcf.fabric_name[1] =
1141 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
1142 phba->fcf.fabric_name[2] =
1143 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
1144 phba->fcf.fabric_name[3] =
1145 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
1146 phba->fcf.fabric_name[4] =
1147 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
1148 phba->fcf.fabric_name[5] =
1149 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
1150 phba->fcf.fabric_name[6] =
1151 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
1152 phba->fcf.fabric_name[7] =
1153 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
1154 phba->fcf.mac_addr[0] =
1155 bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1156 phba->fcf.mac_addr[1] =
1157 bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1158 phba->fcf.mac_addr[2] =
1159 bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1160 phba->fcf.mac_addr[3] =
1161 bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1162 phba->fcf.mac_addr[4] =
1163 bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1164 phba->fcf.mac_addr[5] =
1165 bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1166 phba->fcf.fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1167 phba->fcf.priority = new_fcf_record->fip_priority;
1168 phba->fcf.switch_name[0] =
1169 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
1170 phba->fcf.switch_name[1] =
1171 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
1172 phba->fcf.switch_name[2] =
1173 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
1174 phba->fcf.switch_name[3] =
1175 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
1176 phba->fcf.switch_name[4] =
1177 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
1178 phba->fcf.switch_name[5] =
1179 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
1180 phba->fcf.switch_name[6] =
1181 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
1182 phba->fcf.switch_name[7] =
1183 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
1184 }
1185
1186 /**
1187 * lpfc_register_fcf - Register the FCF with hba.
1188 * @phba: pointer to lpfc hba data structure.
1189 *
1190 * This routine issues a register fcfi mailbox command to register
1191 * the fcf with HBA.
1192 **/
1193 static void
1194 lpfc_register_fcf(struct lpfc_hba *phba)
1195 {
1196 LPFC_MBOXQ_t *fcf_mbxq;
1197 int rc;
1198 unsigned long flags;
1199
1200 spin_lock_irqsave(&phba->hbalock, flags);
1201
1202 /* If the FCF is not availabe do nothing. */
1203 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
1204 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1205 spin_unlock_irqrestore(&phba->hbalock, flags);
1206 return;
1207 }
1208
1209 /* The FCF is already registered, start discovery */
1210 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
1211 phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE);
1212 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1213 spin_unlock_irqrestore(&phba->hbalock, flags);
1214 if (phba->pport->port_state != LPFC_FLOGI)
1215 lpfc_initial_flogi(phba->pport);
1216 return;
1217 }
1218 spin_unlock_irqrestore(&phba->hbalock, flags);
1219
1220 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool,
1221 GFP_KERNEL);
1222 if (!fcf_mbxq) {
1223 spin_lock_irqsave(&phba->hbalock, flags);
1224 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1225 spin_unlock_irqrestore(&phba->hbalock, flags);
1226 return;
1227 }
1228
1229 lpfc_reg_fcfi(phba, fcf_mbxq);
1230 fcf_mbxq->vport = phba->pport;
1231 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1232 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
1233 if (rc == MBX_NOT_FINISHED) {
1234 spin_lock_irqsave(&phba->hbalock, flags);
1235 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1236 spin_unlock_irqrestore(&phba->hbalock, flags);
1237 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
1238 }
1239
1240 return;
1241 }
1242
1243 /**
1244 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1245 * @phba: pointer to lpfc hba data structure.
1246 * @new_fcf_record: pointer to fcf record.
1247 * @boot_flag: Indicates if this record used by boot bios.
1248 * @addr_mode: The address mode to be used by this FCF
1249 *
1250 * This routine compare the fcf record with connect list obtained from the
1251 * config region to decide if this FCF can be used for SAN discovery. It returns
1252 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1253 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1254 * is used by boot bios and addr_mode will indicate the addressing mode to be
1255 * used for this FCF when the function returns.
1256 * If the FCF record need to be used with a particular vlan id, the vlan is
1257 * set in the vlan_id on return of the function. If not VLAN tagging need to
1258 * be used with the FCF vlan_id will be set to 0xFFFF;
1259 **/
1260 static int
1261 lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1262 struct fcf_record *new_fcf_record,
1263 uint32_t *boot_flag, uint32_t *addr_mode,
1264 uint16_t *vlan_id)
1265 {
1266 struct lpfc_fcf_conn_entry *conn_entry;
1267 int i, j, fcf_vlan_id = 0;
1268
1269 /* Find the lowest VLAN id in the FCF record */
1270 for (i = 0; i < 512; i++) {
1271 if (new_fcf_record->vlan_bitmap[i]) {
1272 fcf_vlan_id = i * 8;
1273 j = 0;
1274 while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
1275 j++;
1276 fcf_vlan_id++;
1277 }
1278 break;
1279 }
1280 }
1281
1282 /* If FCF not available return 0 */
1283 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1284 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record))
1285 return 0;
1286
1287 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
1288 *boot_flag = 0;
1289 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1290 new_fcf_record);
1291 if (phba->valid_vlan)
1292 *vlan_id = phba->vlan_id;
1293 else
1294 *vlan_id = 0xFFFF;
1295 return 1;
1296 }
1297
1298 /*
1299 * If there are no FCF connection table entry, driver connect to all
1300 * FCFs.
1301 */
1302 if (list_empty(&phba->fcf_conn_rec_list)) {
1303 *boot_flag = 0;
1304 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1305 new_fcf_record);
1306
1307 /*
1308 * When there are no FCF connect entries, use driver's default
1309 * addressing mode - FPMA.
1310 */
1311 if (*addr_mode & LPFC_FCF_FPMA)
1312 *addr_mode = LPFC_FCF_FPMA;
1313
1314 /* If FCF record report a vlan id use that vlan id */
1315 if (fcf_vlan_id)
1316 *vlan_id = fcf_vlan_id;
1317 else
1318 *vlan_id = 0xFFFF;
1319 return 1;
1320 }
1321
1322 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, list) {
1323 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1324 continue;
1325
1326 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1327 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
1328 new_fcf_record))
1329 continue;
1330 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1331 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1332 new_fcf_record))
1333 continue;
1334 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1335 /*
1336 * If the vlan bit map does not have the bit set for the
1337 * vlan id to be used, then it is not a match.
1338 */
1339 if (!(new_fcf_record->vlan_bitmap
1340 [conn_entry->conn_rec.vlan_tag / 8] &
1341 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1342 continue;
1343 }
1344
1345 /*
1346 * If connection record does not support any addressing mode,
1347 * skip the FCF record.
1348 */
1349 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1350 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1351 continue;
1352
1353 /*
1354 * Check if the connection record specifies a required
1355 * addressing mode.
1356 */
1357 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1358 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1359
1360 /*
1361 * If SPMA required but FCF not support this continue.
1362 */
1363 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1364 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1365 new_fcf_record) & LPFC_FCF_SPMA))
1366 continue;
1367
1368 /*
1369 * If FPMA required but FCF not support this continue.
1370 */
1371 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1372 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1373 new_fcf_record) & LPFC_FCF_FPMA))
1374 continue;
1375 }
1376
1377 /*
1378 * This fcf record matches filtering criteria.
1379 */
1380 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1381 *boot_flag = 1;
1382 else
1383 *boot_flag = 0;
1384
1385 /*
1386 * If user did not specify any addressing mode, or if the
1387 * prefered addressing mode specified by user is not supported
1388 * by FCF, allow fabric to pick the addressing mode.
1389 */
1390 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1391 new_fcf_record);
1392 /*
1393 * If the user specified a required address mode, assign that
1394 * address mode
1395 */
1396 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1397 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1398 *addr_mode = (conn_entry->conn_rec.flags &
1399 FCFCNCT_AM_SPMA) ?
1400 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1401 /*
1402 * If the user specified a prefered address mode, use the
1403 * addr mode only if FCF support the addr_mode.
1404 */
1405 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1406 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1407 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1408 (*addr_mode & LPFC_FCF_SPMA))
1409 *addr_mode = LPFC_FCF_SPMA;
1410 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1411 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1412 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1413 (*addr_mode & LPFC_FCF_FPMA))
1414 *addr_mode = LPFC_FCF_FPMA;
1415
1416 /* If matching connect list has a vlan id, use it */
1417 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1418 *vlan_id = conn_entry->conn_rec.vlan_tag;
1419 /*
1420 * If no vlan id is specified in connect list, use the vlan id
1421 * in the FCF record
1422 */
1423 else if (fcf_vlan_id)
1424 *vlan_id = fcf_vlan_id;
1425 else
1426 *vlan_id = 0xFFFF;
1427
1428 return 1;
1429 }
1430
1431 return 0;
1432 }
1433
1434 /**
1435 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1436 * @phba: pointer to lpfc hba data structure.
1437 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1438 *
1439 * This function check if there is any fcoe event pending while driver
1440 * scan FCF entries. If there is any pending event, it will restart the
1441 * FCF saning and return 1 else return 0.
1442 */
1443 int
1444 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1445 {
1446 LPFC_MBOXQ_t *mbox;
1447 int rc;
1448 /*
1449 * If the Link is up and no FCoE events while in the
1450 * FCF discovery, no need to restart FCF discovery.
1451 */
1452 if ((phba->link_state >= LPFC_LINK_UP) &&
1453 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
1454 return 0;
1455
1456 spin_lock_irq(&phba->hbalock);
1457 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1458 spin_unlock_irq(&phba->hbalock);
1459
1460 if (phba->link_state >= LPFC_LINK_UP)
1461 lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
1462 else {
1463 /*
1464 * Do not continue FCF discovery and clear FCF_DISC_INPROGRESS
1465 * flag
1466 */
1467 spin_lock_irq(&phba->hbalock);
1468 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1469 spin_unlock_irq(&phba->hbalock);
1470 }
1471
1472 if (unreg_fcf) {
1473 spin_lock_irq(&phba->hbalock);
1474 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1475 spin_unlock_irq(&phba->hbalock);
1476 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1477 if (!mbox) {
1478 lpfc_printf_log(phba, KERN_ERR,
1479 LOG_DISCOVERY|LOG_MBOX,
1480 "2610 UNREG_FCFI mbox allocation failed\n");
1481 return 1;
1482 }
1483 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
1484 mbox->vport = phba->pport;
1485 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
1486 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
1487 if (rc == MBX_NOT_FINISHED) {
1488 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
1489 "2611 UNREG_FCFI issue mbox failed\n");
1490 mempool_free(mbox, phba->mbox_mem_pool);
1491 }
1492 }
1493
1494 return 1;
1495 }
1496
1497 /**
1498 * lpfc_mbx_cmpl_read_fcf_record - Completion handler for read_fcf mbox.
1499 * @phba: pointer to lpfc hba data structure.
1500 * @mboxq: pointer to mailbox object.
1501 *
1502 * This function iterate through all the fcf records available in
1503 * HBA and choose the optimal FCF record for discovery. After finding
1504 * the FCF for discovery it register the FCF record and kick start
1505 * discovery.
1506 * If FCF_IN_USE flag is set in currently used FCF, the routine try to
1507 * use a FCF record which match fabric name and mac address of the
1508 * currently used FCF record.
1509 * If the driver support only one FCF, it will try to use the FCF record
1510 * used by BOOT_BIOS.
1511 */
1512 void
1513 lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1514 {
1515 void *virt_addr;
1516 dma_addr_t phys_addr;
1517 uint8_t *bytep;
1518 struct lpfc_mbx_sge sge;
1519 struct lpfc_mbx_read_fcf_tbl *read_fcf;
1520 uint32_t shdr_status, shdr_add_status;
1521 union lpfc_sli4_cfg_shdr *shdr;
1522 struct fcf_record *new_fcf_record;
1523 int rc;
1524 uint32_t boot_flag, addr_mode;
1525 uint32_t next_fcf_index;
1526 unsigned long flags;
1527 uint16_t vlan_id;
1528
1529 /* If there is pending FCoE event restart FCF table scan */
1530 if (lpfc_check_pending_fcoe_event(phba, 0)) {
1531 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1532 return;
1533 }
1534
1535 /* Get the first SGE entry from the non-embedded DMA memory. This
1536 * routine only uses a single SGE.
1537 */
1538 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1539 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
1540 if (unlikely(!mboxq->sge_array)) {
1541 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1542 "2524 Failed to get the non-embedded SGE "
1543 "virtual address\n");
1544 goto out;
1545 }
1546 virt_addr = mboxq->sge_array->addr[0];
1547
1548 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
1549 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
1550 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
1551 &shdr->response);
1552 /*
1553 * The FCF Record was read and there is no reason for the driver
1554 * to maintain the FCF record data or memory. Instead, just need
1555 * to book keeping the FCFIs can be used.
1556 */
1557 if (shdr_status || shdr_add_status) {
1558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1559 "2521 READ_FCF_RECORD mailbox failed "
1560 "with status x%x add_status x%x, mbx\n",
1561 shdr_status, shdr_add_status);
1562 goto out;
1563 }
1564 /* Interpreting the returned information of FCF records */
1565 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1566 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1567 sizeof(struct lpfc_mbx_read_fcf_tbl));
1568 next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
1569
1570 new_fcf_record = (struct fcf_record *)(virt_addr +
1571 sizeof(struct lpfc_mbx_read_fcf_tbl));
1572 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
1573 sizeof(struct fcf_record));
1574 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
1575
1576 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record,
1577 &boot_flag, &addr_mode,
1578 &vlan_id);
1579 /*
1580 * If the fcf record does not match with connect list entries
1581 * read the next entry.
1582 */
1583 if (!rc)
1584 goto read_next_fcf;
1585 /*
1586 * If this is not the first FCF discovery of the HBA, use last
1587 * FCF record for the discovery.
1588 */
1589 spin_lock_irqsave(&phba->hbalock, flags);
1590 if (phba->fcf.fcf_flag & FCF_IN_USE) {
1591 if (lpfc_fab_name_match(phba->fcf.fabric_name,
1592 new_fcf_record) &&
1593 lpfc_sw_name_match(phba->fcf.switch_name,
1594 new_fcf_record) &&
1595 lpfc_mac_addr_match(phba, new_fcf_record)) {
1596 phba->fcf.fcf_flag |= FCF_AVAILABLE;
1597 spin_unlock_irqrestore(&phba->hbalock, flags);
1598 goto out;
1599 }
1600 spin_unlock_irqrestore(&phba->hbalock, flags);
1601 goto read_next_fcf;
1602 }
1603 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
1604 /*
1605 * If the current FCF record does not have boot flag
1606 * set and new fcf record has boot flag set, use the
1607 * new fcf record.
1608 */
1609 if (boot_flag && !(phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) {
1610 /* Use this FCF record */
1611 lpfc_copy_fcf_record(phba, new_fcf_record);
1612 phba->fcf.addr_mode = addr_mode;
1613 phba->fcf.fcf_flag |= FCF_BOOT_ENABLE;
1614 if (vlan_id != 0xFFFF) {
1615 phba->fcf.fcf_flag |= FCF_VALID_VLAN;
1616 phba->fcf.vlan_id = vlan_id;
1617 }
1618 spin_unlock_irqrestore(&phba->hbalock, flags);
1619 goto read_next_fcf;
1620 }
1621 /*
1622 * If the current FCF record has boot flag set and the
1623 * new FCF record does not have boot flag, read the next
1624 * FCF record.
1625 */
1626 if (!boot_flag && (phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) {
1627 spin_unlock_irqrestore(&phba->hbalock, flags);
1628 goto read_next_fcf;
1629 }
1630 /*
1631 * If there is a record with lower priority value for
1632 * the current FCF, use that record.
1633 */
1634 if (lpfc_fab_name_match(phba->fcf.fabric_name,
1635 new_fcf_record) &&
1636 (new_fcf_record->fip_priority < phba->fcf.priority)) {
1637 /* Use this FCF record */
1638 lpfc_copy_fcf_record(phba, new_fcf_record);
1639 phba->fcf.addr_mode = addr_mode;
1640 if (vlan_id != 0xFFFF) {
1641 phba->fcf.fcf_flag |= FCF_VALID_VLAN;
1642 phba->fcf.vlan_id = vlan_id;
1643 }
1644 spin_unlock_irqrestore(&phba->hbalock, flags);
1645 goto read_next_fcf;
1646 }
1647 spin_unlock_irqrestore(&phba->hbalock, flags);
1648 goto read_next_fcf;
1649 }
1650 /*
1651 * This is the first available FCF record, use this
1652 * record.
1653 */
1654 lpfc_copy_fcf_record(phba, new_fcf_record);
1655 phba->fcf.addr_mode = addr_mode;
1656 if (boot_flag)
1657 phba->fcf.fcf_flag |= FCF_BOOT_ENABLE;
1658 phba->fcf.fcf_flag |= FCF_AVAILABLE;
1659 if (vlan_id != 0xFFFF) {
1660 phba->fcf.fcf_flag |= FCF_VALID_VLAN;
1661 phba->fcf.vlan_id = vlan_id;
1662 }
1663 spin_unlock_irqrestore(&phba->hbalock, flags);
1664 goto read_next_fcf;
1665
1666 read_next_fcf:
1667 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1668 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0)
1669 lpfc_register_fcf(phba);
1670 else
1671 lpfc_sli4_read_fcf_record(phba, next_fcf_index);
1672 return;
1673
1674 out:
1675 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1676 lpfc_register_fcf(phba);
1677
1678 return;
1679 }
1680
1681 /**
1682 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
1683 * @phba: pointer to lpfc hba data structure.
1684 * @mboxq: pointer to mailbox data structure.
1685 *
1686 * This function handles completion of init vpi mailbox command.
1687 */
1688 static void
1689 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1690 {
1691 struct lpfc_vport *vport = mboxq->vport;
1692 if (mboxq->u.mb.mbxStatus) {
1693 lpfc_printf_vlog(vport, KERN_ERR,
1694 LOG_MBOX,
1695 "2609 Init VPI mailbox failed 0x%x\n",
1696 mboxq->u.mb.mbxStatus);
1697 mempool_free(mboxq, phba->mbox_mem_pool);
1698 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1699 return;
1700 }
1701 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
1702
1703 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
1704 lpfc_initial_fdisc(vport);
1705 else {
1706 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
1707 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1708 "2606 No NPIV Fabric support\n");
1709 }
1710 return;
1711 }
1712
1713 /**
1714 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
1715 * @phba: pointer to lpfc hba data structure.
1716 *
1717 * This function loops through the list of vports on the @phba and issues an
1718 * FDISC if possible.
1719 */
1720 void
1721 lpfc_start_fdiscs(struct lpfc_hba *phba)
1722 {
1723 struct lpfc_vport **vports;
1724 int i;
1725 LPFC_MBOXQ_t *mboxq;
1726 int rc;
1727
1728 vports = lpfc_create_vport_work_array(phba);
1729 if (vports != NULL) {
1730 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1731 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
1732 continue;
1733 /* There are no vpi for this vport */
1734 if (vports[i]->vpi > phba->max_vpi) {
1735 lpfc_vport_set_state(vports[i],
1736 FC_VPORT_FAILED);
1737 continue;
1738 }
1739 if (phba->fc_topology == TOPOLOGY_LOOP) {
1740 lpfc_vport_set_state(vports[i],
1741 FC_VPORT_LINKDOWN);
1742 continue;
1743 }
1744 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
1745 mboxq = mempool_alloc(phba->mbox_mem_pool,
1746 GFP_KERNEL);
1747 if (!mboxq) {
1748 lpfc_printf_vlog(vports[i], KERN_ERR,
1749 LOG_MBOX, "2607 Failed to allocate "
1750 "init_vpi mailbox\n");
1751 continue;
1752 }
1753 lpfc_init_vpi(phba, mboxq, vports[i]->vpi);
1754 mboxq->vport = vports[i];
1755 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
1756 rc = lpfc_sli_issue_mbox(phba, mboxq,
1757 MBX_NOWAIT);
1758 if (rc == MBX_NOT_FINISHED) {
1759 lpfc_printf_vlog(vports[i], KERN_ERR,
1760 LOG_MBOX, "2608 Failed to issue "
1761 "init_vpi mailbox\n");
1762 mempool_free(mboxq,
1763 phba->mbox_mem_pool);
1764 }
1765 continue;
1766 }
1767 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
1768 lpfc_initial_fdisc(vports[i]);
1769 else {
1770 lpfc_vport_set_state(vports[i],
1771 FC_VPORT_NO_FABRIC_SUPP);
1772 lpfc_printf_vlog(vports[i], KERN_ERR,
1773 LOG_ELS,
1774 "0259 No NPIV "
1775 "Fabric support\n");
1776 }
1777 }
1778 }
1779 lpfc_destroy_vport_work_array(phba, vports);
1780 }
1781
1782 void
1783 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1784 {
1785 struct lpfc_dmabuf *dmabuf = mboxq->context1;
1786 struct lpfc_vport *vport = mboxq->vport;
1787
1788 if (mboxq->u.mb.mbxStatus) {
1789 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1790 "2018 REG_VFI mbxStatus error x%x "
1791 "HBA state x%x\n",
1792 mboxq->u.mb.mbxStatus, vport->port_state);
1793 if (phba->fc_topology == TOPOLOGY_LOOP) {
1794 /* FLOGI failed, use loop map to make discovery list */
1795 lpfc_disc_list_loopmap(vport);
1796 /* Start discovery */
1797 lpfc_disc_start(vport);
1798 goto fail_free_mem;
1799 }
1800 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1801 goto fail_free_mem;
1802 }
1803 /* The VPI is implicitly registered when the VFI is registered */
1804 vport->vpi_state |= LPFC_VPI_REGISTERED;
1805
1806 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
1807 lpfc_start_fdiscs(phba);
1808 lpfc_do_scr_ns_plogi(phba, vport);
1809 }
1810
1811 fail_free_mem:
1812 mempool_free(mboxq, phba->mbox_mem_pool);
1813 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
1814 kfree(dmabuf);
1815 return;
1816 }
1817
1818 static void
1819 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1820 {
1821 MAILBOX_t *mb = &pmb->u.mb;
1822 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
1823 struct lpfc_vport *vport = pmb->vport;
1824
1825
1826 /* Check for error */
1827 if (mb->mbxStatus) {
1828 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
1829 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1830 "0319 READ_SPARAM mbxStatus error x%x "
1831 "hba state x%x>\n",
1832 mb->mbxStatus, vport->port_state);
1833 lpfc_linkdown(phba);
1834 goto out;
1835 }
1836
1837 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
1838 sizeof (struct serv_parm));
1839 if (phba->cfg_soft_wwnn)
1840 u64_to_wwn(phba->cfg_soft_wwnn,
1841 vport->fc_sparam.nodeName.u.wwn);
1842 if (phba->cfg_soft_wwpn)
1843 u64_to_wwn(phba->cfg_soft_wwpn,
1844 vport->fc_sparam.portName.u.wwn);
1845 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
1846 sizeof(vport->fc_nodename));
1847 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
1848 sizeof(vport->fc_portname));
1849 if (vport->port_type == LPFC_PHYSICAL_PORT) {
1850 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
1851 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
1852 }
1853
1854 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1855 kfree(mp);
1856 mempool_free(pmb, phba->mbox_mem_pool);
1857 return;
1858
1859 out:
1860 pmb->context1 = NULL;
1861 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1862 kfree(mp);
1863 lpfc_issue_clear_la(phba, vport);
1864 mempool_free(pmb, phba->mbox_mem_pool);
1865 return;
1866 }
1867
1868 static void
1869 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
1870 {
1871 struct lpfc_vport *vport = phba->pport;
1872 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
1873 int i;
1874 struct lpfc_dmabuf *mp;
1875 int rc;
1876 struct fcf_record *fcf_record;
1877
1878 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1879
1880 spin_lock_irq(&phba->hbalock);
1881 switch (la->UlnkSpeed) {
1882 case LA_1GHZ_LINK:
1883 phba->fc_linkspeed = LA_1GHZ_LINK;
1884 break;
1885 case LA_2GHZ_LINK:
1886 phba->fc_linkspeed = LA_2GHZ_LINK;
1887 break;
1888 case LA_4GHZ_LINK:
1889 phba->fc_linkspeed = LA_4GHZ_LINK;
1890 break;
1891 case LA_8GHZ_LINK:
1892 phba->fc_linkspeed = LA_8GHZ_LINK;
1893 break;
1894 case LA_10GHZ_LINK:
1895 phba->fc_linkspeed = LA_10GHZ_LINK;
1896 break;
1897 default:
1898 phba->fc_linkspeed = LA_UNKNW_LINK;
1899 break;
1900 }
1901
1902 phba->fc_topology = la->topology;
1903 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
1904
1905 if (phba->fc_topology == TOPOLOGY_LOOP) {
1906 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
1907
1908 /* if npiv is enabled and this adapter supports npiv log
1909 * a message that npiv is not supported in this topology
1910 */
1911 if (phba->cfg_enable_npiv && phba->max_vpi)
1912 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1913 "1309 Link Up Event npiv not supported in loop "
1914 "topology\n");
1915 /* Get Loop Map information */
1916 if (la->il)
1917 vport->fc_flag |= FC_LBIT;
1918
1919 vport->fc_myDID = la->granted_AL_PA;
1920 i = la->un.lilpBde64.tus.f.bdeSize;
1921
1922 if (i == 0) {
1923 phba->alpa_map[0] = 0;
1924 } else {
1925 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
1926 int numalpa, j, k;
1927 union {
1928 uint8_t pamap[16];
1929 struct {
1930 uint32_t wd1;
1931 uint32_t wd2;
1932 uint32_t wd3;
1933 uint32_t wd4;
1934 } pa;
1935 } un;
1936 numalpa = phba->alpa_map[0];
1937 j = 0;
1938 while (j < numalpa) {
1939 memset(un.pamap, 0, 16);
1940 for (k = 1; j < numalpa; k++) {
1941 un.pamap[k - 1] =
1942 phba->alpa_map[j + 1];
1943 j++;
1944 if (k == 16)
1945 break;
1946 }
1947 /* Link Up Event ALPA map */
1948 lpfc_printf_log(phba,
1949 KERN_WARNING,
1950 LOG_LINK_EVENT,
1951 "1304 Link Up Event "
1952 "ALPA map Data: x%x "
1953 "x%x x%x x%x\n",
1954 un.pa.wd1, un.pa.wd2,
1955 un.pa.wd3, un.pa.wd4);
1956 }
1957 }
1958 }
1959 } else {
1960 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
1961 if (phba->max_vpi && phba->cfg_enable_npiv &&
1962 (phba->sli_rev == 3))
1963 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
1964 }
1965 vport->fc_myDID = phba->fc_pref_DID;
1966 vport->fc_flag |= FC_LBIT;
1967 }
1968 spin_unlock_irq(&phba->hbalock);
1969
1970 lpfc_linkup(phba);
1971 if (sparam_mbox) {
1972 lpfc_read_sparam(phba, sparam_mbox, 0);
1973 sparam_mbox->vport = vport;
1974 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
1975 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
1976 if (rc == MBX_NOT_FINISHED) {
1977 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
1978 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1979 kfree(mp);
1980 mempool_free(sparam_mbox, phba->mbox_mem_pool);
1981 goto out;
1982 }
1983 }
1984
1985 if (!(phba->hba_flag & HBA_FCOE_SUPPORT)) {
1986 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1987 if (!cfglink_mbox)
1988 goto out;
1989 vport->port_state = LPFC_LOCAL_CFG_LINK;
1990 lpfc_config_link(phba, cfglink_mbox);
1991 cfglink_mbox->vport = vport;
1992 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
1993 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
1994 if (rc == MBX_NOT_FINISHED) {
1995 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
1996 goto out;
1997 }
1998 } else {
1999 vport->port_state = LPFC_VPORT_UNKNOWN;
2000 /*
2001 * Add the driver's default FCF record at FCF index 0 now. This
2002 * is phase 1 implementation that support FCF index 0 and driver
2003 * defaults.
2004 */
2005 if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
2006 fcf_record = kzalloc(sizeof(struct fcf_record),
2007 GFP_KERNEL);
2008 if (unlikely(!fcf_record)) {
2009 lpfc_printf_log(phba, KERN_ERR,
2010 LOG_MBOX | LOG_SLI,
2011 "2554 Could not allocate memmory for "
2012 "fcf record\n");
2013 rc = -ENODEV;
2014 goto out;
2015 }
2016
2017 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
2018 LPFC_FCOE_FCF_DEF_INDEX);
2019 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
2020 if (unlikely(rc)) {
2021 lpfc_printf_log(phba, KERN_ERR,
2022 LOG_MBOX | LOG_SLI,
2023 "2013 Could not manually add FCF "
2024 "record 0, status %d\n", rc);
2025 rc = -ENODEV;
2026 kfree(fcf_record);
2027 goto out;
2028 }
2029 kfree(fcf_record);
2030 }
2031 /*
2032 * The driver is expected to do FIP/FCF. Call the port
2033 * and get the FCF Table.
2034 */
2035 spin_lock_irq(&phba->hbalock);
2036 if (phba->hba_flag & FCF_DISC_INPROGRESS) {
2037 spin_unlock_irq(&phba->hbalock);
2038 return;
2039 }
2040 spin_unlock_irq(&phba->hbalock);
2041 rc = lpfc_sli4_read_fcf_record(phba,
2042 LPFC_FCOE_FCF_GET_FIRST);
2043 if (rc)
2044 goto out;
2045 }
2046
2047 return;
2048 out:
2049 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2050 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2051 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
2052 vport->port_state, sparam_mbox, cfglink_mbox);
2053 lpfc_issue_clear_la(phba, vport);
2054 return;
2055 }
2056
2057 static void
2058 lpfc_enable_la(struct lpfc_hba *phba)
2059 {
2060 uint32_t control;
2061 struct lpfc_sli *psli = &phba->sli;
2062 spin_lock_irq(&phba->hbalock);
2063 psli->sli_flag |= LPFC_PROCESS_LA;
2064 if (phba->sli_rev <= LPFC_SLI_REV3) {
2065 control = readl(phba->HCregaddr);
2066 control |= HC_LAINT_ENA;
2067 writel(control, phba->HCregaddr);
2068 readl(phba->HCregaddr); /* flush */
2069 }
2070 spin_unlock_irq(&phba->hbalock);
2071 }
2072
2073 static void
2074 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
2075 {
2076 lpfc_linkdown(phba);
2077 lpfc_enable_la(phba);
2078 lpfc_unregister_unused_fcf(phba);
2079 /* turn on Link Attention interrupts - no CLEAR_LA needed */
2080 }
2081
2082
2083 /*
2084 * This routine handles processing a READ_LA mailbox
2085 * command upon completion. It is setup in the LPFC_MBOXQ
2086 * as the completion routine when the command is
2087 * handed off to the SLI layer.
2088 */
2089 void
2090 lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2091 {
2092 struct lpfc_vport *vport = pmb->vport;
2093 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2094 READ_LA_VAR *la;
2095 MAILBOX_t *mb = &pmb->u.mb;
2096 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2097
2098 /* Unblock ELS traffic */
2099 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2100 /* Check for error */
2101 if (mb->mbxStatus) {
2102 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
2103 "1307 READ_LA mbox error x%x state x%x\n",
2104 mb->mbxStatus, vport->port_state);
2105 lpfc_mbx_issue_link_down(phba);
2106 phba->link_state = LPFC_HBA_ERROR;
2107 goto lpfc_mbx_cmpl_read_la_free_mbuf;
2108 }
2109
2110 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
2111
2112 memcpy(&phba->alpa_map[0], mp->virt, 128);
2113
2114 spin_lock_irq(shost->host_lock);
2115 if (la->pb)
2116 vport->fc_flag |= FC_BYPASSED_MODE;
2117 else
2118 vport->fc_flag &= ~FC_BYPASSED_MODE;
2119 spin_unlock_irq(shost->host_lock);
2120
2121 if ((phba->fc_eventTag < la->eventTag) ||
2122 (phba->fc_eventTag == la->eventTag)) {
2123 phba->fc_stat.LinkMultiEvent++;
2124 if (la->attType == AT_LINK_UP)
2125 if (phba->fc_eventTag != 0)
2126 lpfc_linkdown(phba);
2127 }
2128
2129 phba->fc_eventTag = la->eventTag;
2130 if (la->mm)
2131 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
2132 else
2133 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
2134
2135 phba->link_events++;
2136 if (la->attType == AT_LINK_UP && (!la->mm)) {
2137 phba->fc_stat.LinkUp++;
2138 if (phba->link_flag & LS_LOOPBACK_MODE) {
2139 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2140 "1306 Link Up Event in loop back mode "
2141 "x%x received Data: x%x x%x x%x x%x\n",
2142 la->eventTag, phba->fc_eventTag,
2143 la->granted_AL_PA, la->UlnkSpeed,
2144 phba->alpa_map[0]);
2145 } else {
2146 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2147 "1303 Link Up Event x%x received "
2148 "Data: x%x x%x x%x x%x x%x x%x %d\n",
2149 la->eventTag, phba->fc_eventTag,
2150 la->granted_AL_PA, la->UlnkSpeed,
2151 phba->alpa_map[0],
2152 la->mm, la->fa,
2153 phba->wait_4_mlo_maint_flg);
2154 }
2155 lpfc_mbx_process_link_up(phba, la);
2156 } else if (la->attType == AT_LINK_DOWN) {
2157 phba->fc_stat.LinkDown++;
2158 if (phba->link_flag & LS_LOOPBACK_MODE) {
2159 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2160 "1308 Link Down Event in loop back mode "
2161 "x%x received "
2162 "Data: x%x x%x x%x\n",
2163 la->eventTag, phba->fc_eventTag,
2164 phba->pport->port_state, vport->fc_flag);
2165 }
2166 else {
2167 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2168 "1305 Link Down Event x%x received "
2169 "Data: x%x x%x x%x x%x x%x\n",
2170 la->eventTag, phba->fc_eventTag,
2171 phba->pport->port_state, vport->fc_flag,
2172 la->mm, la->fa);
2173 }
2174 lpfc_mbx_issue_link_down(phba);
2175 }
2176 if (la->mm && la->attType == AT_LINK_UP) {
2177 if (phba->link_state != LPFC_LINK_DOWN) {
2178 phba->fc_stat.LinkDown++;
2179 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2180 "1312 Link Down Event x%x received "
2181 "Data: x%x x%x x%x\n",
2182 la->eventTag, phba->fc_eventTag,
2183 phba->pport->port_state, vport->fc_flag);
2184 lpfc_mbx_issue_link_down(phba);
2185 } else
2186 lpfc_enable_la(phba);
2187
2188 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2189 "1310 Menlo Maint Mode Link up Event x%x rcvd "
2190 "Data: x%x x%x x%x\n",
2191 la->eventTag, phba->fc_eventTag,
2192 phba->pport->port_state, vport->fc_flag);
2193 /*
2194 * The cmnd that triggered this will be waiting for this
2195 * signal.
2196 */
2197 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
2198 if (phba->wait_4_mlo_maint_flg) {
2199 phba->wait_4_mlo_maint_flg = 0;
2200 wake_up_interruptible(&phba->wait_4_mlo_m_q);
2201 }
2202 }
2203
2204 if (la->fa) {
2205 if (la->mm)
2206 lpfc_issue_clear_la(phba, vport);
2207 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
2208 "1311 fa %d\n", la->fa);
2209 }
2210
2211 lpfc_mbx_cmpl_read_la_free_mbuf:
2212 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2213 kfree(mp);
2214 mempool_free(pmb, phba->mbox_mem_pool);
2215 return;
2216 }
2217
2218 /*
2219 * This routine handles processing a REG_LOGIN mailbox
2220 * command upon completion. It is setup in the LPFC_MBOXQ
2221 * as the completion routine when the command is
2222 * handed off to the SLI layer.
2223 */
2224 void
2225 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2226 {
2227 struct lpfc_vport *vport = pmb->vport;
2228 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2229 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2230
2231 pmb->context1 = NULL;
2232
2233 /* Good status, call state machine */
2234 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
2235 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2236 kfree(mp);
2237 mempool_free(pmb, phba->mbox_mem_pool);
2238 /* decrement the node reference count held for this callback
2239 * function.
2240 */
2241 lpfc_nlp_put(ndlp);
2242
2243 return;
2244 }
2245
2246 static void
2247 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2248 {
2249 MAILBOX_t *mb = &pmb->u.mb;
2250 struct lpfc_vport *vport = pmb->vport;
2251 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2252
2253 switch (mb->mbxStatus) {
2254 case 0x0011:
2255 case 0x0020:
2256 case 0x9700:
2257 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2258 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
2259 mb->mbxStatus);
2260 break;
2261 }
2262 vport->vpi_state &= ~LPFC_VPI_REGISTERED;
2263 vport->unreg_vpi_cmpl = VPORT_OK;
2264 mempool_free(pmb, phba->mbox_mem_pool);
2265 /*
2266 * This shost reference might have been taken at the beginning of
2267 * lpfc_vport_delete()
2268 */
2269 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
2270 scsi_host_put(shost);
2271 }
2272
2273 int
2274 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
2275 {
2276 struct lpfc_hba *phba = vport->phba;
2277 LPFC_MBOXQ_t *mbox;
2278 int rc;
2279
2280 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2281 if (!mbox)
2282 return 1;
2283
2284 lpfc_unreg_vpi(phba, vport->vpi, mbox);
2285 mbox->vport = vport;
2286 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
2287 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2288 if (rc == MBX_NOT_FINISHED) {
2289 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
2290 "1800 Could not issue unreg_vpi\n");
2291 mempool_free(mbox, phba->mbox_mem_pool);
2292 vport->unreg_vpi_cmpl = VPORT_ERROR;
2293 return rc;
2294 }
2295 return 0;
2296 }
2297
2298 static void
2299 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2300 {
2301 struct lpfc_vport *vport = pmb->vport;
2302 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2303 MAILBOX_t *mb = &pmb->u.mb;
2304
2305 switch (mb->mbxStatus) {
2306 case 0x0011:
2307 case 0x9601:
2308 case 0x9602:
2309 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2310 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
2311 mb->mbxStatus);
2312 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2313 spin_lock_irq(shost->host_lock);
2314 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2315 spin_unlock_irq(shost->host_lock);
2316 vport->fc_myDID = 0;
2317 goto out;
2318 }
2319
2320 vport->vpi_state |= LPFC_VPI_REGISTERED;
2321 vport->num_disc_nodes = 0;
2322 /* go thru NPR list and issue ELS PLOGIs */
2323 if (vport->fc_npr_cnt)
2324 lpfc_els_disc_plogi(vport);
2325
2326 if (!vport->num_disc_nodes) {
2327 spin_lock_irq(shost->host_lock);
2328 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2329 spin_unlock_irq(shost->host_lock);
2330 lpfc_can_disctmo(vport);
2331 }
2332 vport->port_state = LPFC_VPORT_READY;
2333
2334 out:
2335 mempool_free(pmb, phba->mbox_mem_pool);
2336 return;
2337 }
2338
2339 /**
2340 * lpfc_create_static_vport - Read HBA config region to create static vports.
2341 * @phba: pointer to lpfc hba data structure.
2342 *
2343 * This routine issue a DUMP mailbox command for config region 22 to get
2344 * the list of static vports to be created. The function create vports
2345 * based on the information returned from the HBA.
2346 **/
2347 void
2348 lpfc_create_static_vport(struct lpfc_hba *phba)
2349 {
2350 LPFC_MBOXQ_t *pmb = NULL;
2351 MAILBOX_t *mb;
2352 struct static_vport_info *vport_info;
2353 int rc = 0, i;
2354 struct fc_vport_identifiers vport_id;
2355 struct fc_vport *new_fc_vport;
2356 struct Scsi_Host *shost;
2357 struct lpfc_vport *vport;
2358 uint16_t offset = 0;
2359 uint8_t *vport_buff;
2360 struct lpfc_dmabuf *mp;
2361 uint32_t byte_count = 0;
2362
2363 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2364 if (!pmb) {
2365 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2366 "0542 lpfc_create_static_vport failed to"
2367 " allocate mailbox memory\n");
2368 return;
2369 }
2370
2371 mb = &pmb->u.mb;
2372
2373 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
2374 if (!vport_info) {
2375 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2376 "0543 lpfc_create_static_vport failed to"
2377 " allocate vport_info\n");
2378 mempool_free(pmb, phba->mbox_mem_pool);
2379 return;
2380 }
2381
2382 vport_buff = (uint8_t *) vport_info;
2383 do {
2384 if (lpfc_dump_static_vport(phba, pmb, offset))
2385 goto out;
2386
2387 pmb->vport = phba->pport;
2388 rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO);
2389
2390 if ((rc != MBX_SUCCESS) || mb->mbxStatus) {
2391 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2392 "0544 lpfc_create_static_vport failed to"
2393 " issue dump mailbox command ret 0x%x "
2394 "status 0x%x\n",
2395 rc, mb->mbxStatus);
2396 goto out;
2397 }
2398
2399 if (phba->sli_rev == LPFC_SLI_REV4) {
2400 byte_count = pmb->u.mqe.un.mb_words[5];
2401 mp = (struct lpfc_dmabuf *) pmb->context2;
2402 if (byte_count > sizeof(struct static_vport_info) -
2403 offset)
2404 byte_count = sizeof(struct static_vport_info)
2405 - offset;
2406 memcpy(vport_buff + offset, mp->virt, byte_count);
2407 offset += byte_count;
2408 } else {
2409 if (mb->un.varDmp.word_cnt >
2410 sizeof(struct static_vport_info) - offset)
2411 mb->un.varDmp.word_cnt =
2412 sizeof(struct static_vport_info)
2413 - offset;
2414 byte_count = mb->un.varDmp.word_cnt;
2415 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
2416 vport_buff + offset,
2417 byte_count);
2418
2419 offset += byte_count;
2420 }
2421
2422 } while (byte_count &&
2423 offset < sizeof(struct static_vport_info));
2424
2425
2426 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
2427 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
2428 != VPORT_INFO_REV)) {
2429 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2430 "0545 lpfc_create_static_vport bad"
2431 " information header 0x%x 0x%x\n",
2432 le32_to_cpu(vport_info->signature),
2433 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
2434
2435 goto out;
2436 }
2437
2438 shost = lpfc_shost_from_vport(phba->pport);
2439
2440 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
2441 memset(&vport_id, 0, sizeof(vport_id));
2442 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
2443 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
2444 if (!vport_id.port_name || !vport_id.node_name)
2445 continue;
2446
2447 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
2448 vport_id.vport_type = FC_PORTTYPE_NPIV;
2449 vport_id.disable = false;
2450 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
2451
2452 if (!new_fc_vport) {
2453 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2454 "0546 lpfc_create_static_vport failed to"
2455 " create vport\n");
2456 continue;
2457 }
2458
2459 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
2460 vport->vport_flag |= STATIC_VPORT;
2461 }
2462
2463 out:
2464 kfree(vport_info);
2465 if (rc != MBX_TIMEOUT) {
2466 if (pmb->context2) {
2467 mp = (struct lpfc_dmabuf *) pmb->context2;
2468 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2469 kfree(mp);
2470 }
2471 mempool_free(pmb, phba->mbox_mem_pool);
2472 }
2473
2474 return;
2475 }
2476
2477 /*
2478 * This routine handles processing a Fabric REG_LOGIN mailbox
2479 * command upon completion. It is setup in the LPFC_MBOXQ
2480 * as the completion routine when the command is
2481 * handed off to the SLI layer.
2482 */
2483 void
2484 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2485 {
2486 struct lpfc_vport *vport = pmb->vport;
2487 MAILBOX_t *mb = &pmb->u.mb;
2488 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2489 struct lpfc_nodelist *ndlp;
2490
2491 ndlp = (struct lpfc_nodelist *) pmb->context2;
2492 pmb->context1 = NULL;
2493 pmb->context2 = NULL;
2494 if (mb->mbxStatus) {
2495 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2496 "0258 Register Fabric login error: 0x%x\n",
2497 mb->mbxStatus);
2498 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2499 kfree(mp);
2500 mempool_free(pmb, phba->mbox_mem_pool);
2501
2502 if (phba->fc_topology == TOPOLOGY_LOOP) {
2503 /* FLOGI failed, use loop map to make discovery list */
2504 lpfc_disc_list_loopmap(vport);
2505
2506 /* Start discovery */
2507 lpfc_disc_start(vport);
2508 /* Decrement the reference count to ndlp after the
2509 * reference to the ndlp are done.
2510 */
2511 lpfc_nlp_put(ndlp);
2512 return;
2513 }
2514
2515 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2516 /* Decrement the reference count to ndlp after the reference
2517 * to the ndlp are done.
2518 */
2519 lpfc_nlp_put(ndlp);
2520 return;
2521 }
2522
2523 ndlp->nlp_rpi = mb->un.varWords[0];
2524 ndlp->nlp_flag |= NLP_RPI_VALID;
2525 ndlp->nlp_type |= NLP_FABRIC;
2526 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2527
2528 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
2529 lpfc_start_fdiscs(phba);
2530 lpfc_do_scr_ns_plogi(phba, vport);
2531 }
2532
2533 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2534 kfree(mp);
2535 mempool_free(pmb, phba->mbox_mem_pool);
2536
2537 /* Drop the reference count from the mbox at the end after
2538 * all the current reference to the ndlp have been done.
2539 */
2540 lpfc_nlp_put(ndlp);
2541 return;
2542 }
2543
2544 /*
2545 * This routine handles processing a NameServer REG_LOGIN mailbox
2546 * command upon completion. It is setup in the LPFC_MBOXQ
2547 * as the completion routine when the command is
2548 * handed off to the SLI layer.
2549 */
2550 void
2551 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2552 {
2553 MAILBOX_t *mb = &pmb->u.mb;
2554 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2555 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2556 struct lpfc_vport *vport = pmb->vport;
2557
2558 if (mb->mbxStatus) {
2559 out:
2560 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2561 "0260 Register NameServer error: 0x%x\n",
2562 mb->mbxStatus);
2563 /* decrement the node reference count held for this
2564 * callback function.
2565 */
2566 lpfc_nlp_put(ndlp);
2567 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2568 kfree(mp);
2569 mempool_free(pmb, phba->mbox_mem_pool);
2570
2571 /* If no other thread is using the ndlp, free it */
2572 lpfc_nlp_not_used(ndlp);
2573
2574 if (phba->fc_topology == TOPOLOGY_LOOP) {
2575 /*
2576 * RegLogin failed, use loop map to make discovery
2577 * list
2578 */
2579 lpfc_disc_list_loopmap(vport);
2580
2581 /* Start discovery */
2582 lpfc_disc_start(vport);
2583 return;
2584 }
2585 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2586 return;
2587 }
2588
2589 pmb->context1 = NULL;
2590
2591 ndlp->nlp_rpi = mb->un.varWords[0];
2592 ndlp->nlp_flag |= NLP_RPI_VALID;
2593 ndlp->nlp_type |= NLP_FABRIC;
2594 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2595
2596 if (vport->port_state < LPFC_VPORT_READY) {
2597 /* Link up discovery requires Fabric registration. */
2598 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
2599 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
2600 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
2601 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
2602 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
2603
2604 /* Issue SCR just before NameServer GID_FT Query */
2605 lpfc_issue_els_scr(vport, SCR_DID, 0);
2606 }
2607
2608 vport->fc_ns_retry = 0;
2609 /* Good status, issue CT Request to NameServer */
2610 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
2611 /* Cannot issue NameServer Query, so finish up discovery */
2612 goto out;
2613 }
2614
2615 /* decrement the node reference count held for this
2616 * callback function.
2617 */
2618 lpfc_nlp_put(ndlp);
2619 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2620 kfree(mp);
2621 mempool_free(pmb, phba->mbox_mem_pool);
2622
2623 return;
2624 }
2625
2626 static void
2627 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2628 {
2629 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2630 struct fc_rport *rport;
2631 struct lpfc_rport_data *rdata;
2632 struct fc_rport_identifiers rport_ids;
2633 struct lpfc_hba *phba = vport->phba;
2634
2635 /* Remote port has reappeared. Re-register w/ FC transport */
2636 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
2637 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
2638 rport_ids.port_id = ndlp->nlp_DID;
2639 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2640
2641 /*
2642 * We leave our node pointer in rport->dd_data when we unregister a
2643 * FCP target port. But fc_remote_port_add zeros the space to which
2644 * rport->dd_data points. So, if we're reusing a previously
2645 * registered port, drop the reference that we took the last time we
2646 * registered the port.
2647 */
2648 if (ndlp->rport && ndlp->rport->dd_data &&
2649 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
2650 lpfc_nlp_put(ndlp);
2651
2652 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
2653 "rport add: did:x%x flg:x%x type x%x",
2654 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
2655
2656 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
2657 if (!rport || !get_device(&rport->dev)) {
2658 dev_printk(KERN_WARNING, &phba->pcidev->dev,
2659 "Warning: fc_remote_port_add failed\n");
2660 return;
2661 }
2662
2663 /* initialize static port data */
2664 rport->maxframe_size = ndlp->nlp_maxframe;
2665 rport->supported_classes = ndlp->nlp_class_sup;
2666 rdata = rport->dd_data;
2667 rdata->pnode = lpfc_nlp_get(ndlp);
2668
2669 if (ndlp->nlp_type & NLP_FCP_TARGET)
2670 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2671 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
2672 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2673
2674
2675 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
2676 fc_remote_port_rolechg(rport, rport_ids.roles);
2677
2678 if ((rport->scsi_target_id != -1) &&
2679 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
2680 ndlp->nlp_sid = rport->scsi_target_id;
2681 }
2682 return;
2683 }
2684
2685 static void
2686 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
2687 {
2688 struct fc_rport *rport = ndlp->rport;
2689
2690 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
2691 "rport delete: did:x%x flg:x%x type x%x",
2692 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
2693
2694 fc_remote_port_delete(rport);
2695
2696 return;
2697 }
2698
2699 static void
2700 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
2701 {
2702 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2703
2704 spin_lock_irq(shost->host_lock);
2705 switch (state) {
2706 case NLP_STE_UNUSED_NODE:
2707 vport->fc_unused_cnt += count;
2708 break;
2709 case NLP_STE_PLOGI_ISSUE:
2710 vport->fc_plogi_cnt += count;
2711 break;
2712 case NLP_STE_ADISC_ISSUE:
2713 vport->fc_adisc_cnt += count;
2714 break;
2715 case NLP_STE_REG_LOGIN_ISSUE:
2716 vport->fc_reglogin_cnt += count;
2717 break;
2718 case NLP_STE_PRLI_ISSUE:
2719 vport->fc_prli_cnt += count;
2720 break;
2721 case NLP_STE_UNMAPPED_NODE:
2722 vport->fc_unmap_cnt += count;
2723 break;
2724 case NLP_STE_MAPPED_NODE:
2725 vport->fc_map_cnt += count;
2726 break;
2727 case NLP_STE_NPR_NODE:
2728 vport->fc_npr_cnt += count;
2729 break;
2730 }
2731 spin_unlock_irq(shost->host_lock);
2732 }
2733
2734 static void
2735 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2736 int old_state, int new_state)
2737 {
2738 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2739
2740 if (new_state == NLP_STE_UNMAPPED_NODE) {
2741 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
2742 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
2743 ndlp->nlp_type |= NLP_FC_NODE;
2744 }
2745 if (new_state == NLP_STE_MAPPED_NODE)
2746 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
2747 if (new_state == NLP_STE_NPR_NODE)
2748 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
2749
2750 /* Transport interface */
2751 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
2752 old_state == NLP_STE_UNMAPPED_NODE)) {
2753 vport->phba->nport_event_cnt++;
2754 lpfc_unregister_remote_port(ndlp);
2755 }
2756
2757 if (new_state == NLP_STE_MAPPED_NODE ||
2758 new_state == NLP_STE_UNMAPPED_NODE) {
2759 vport->phba->nport_event_cnt++;
2760 /*
2761 * Tell the fc transport about the port, if we haven't
2762 * already. If we have, and it's a scsi entity, be
2763 * sure to unblock any attached scsi devices
2764 */
2765 lpfc_register_remote_port(vport, ndlp);
2766 }
2767 if ((new_state == NLP_STE_MAPPED_NODE) &&
2768 (vport->stat_data_enabled)) {
2769 /*
2770 * A new target is discovered, if there is no buffer for
2771 * statistical data collection allocate buffer.
2772 */
2773 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
2774 sizeof(struct lpfc_scsicmd_bkt),
2775 GFP_KERNEL);
2776
2777 if (!ndlp->lat_data)
2778 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
2779 "0286 lpfc_nlp_state_cleanup failed to "
2780 "allocate statistical data buffer DID "
2781 "0x%x\n", ndlp->nlp_DID);
2782 }
2783 /*
2784 * if we added to Mapped list, but the remote port
2785 * registration failed or assigned a target id outside
2786 * our presentable range - move the node to the
2787 * Unmapped List
2788 */
2789 if (new_state == NLP_STE_MAPPED_NODE &&
2790 (!ndlp->rport ||
2791 ndlp->rport->scsi_target_id == -1 ||
2792 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
2793 spin_lock_irq(shost->host_lock);
2794 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
2795 spin_unlock_irq(shost->host_lock);
2796 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2797 }
2798 }
2799
2800 static char *
2801 lpfc_nlp_state_name(char *buffer, size_t size, int state)
2802 {
2803 static char *states[] = {
2804 [NLP_STE_UNUSED_NODE] = "UNUSED",
2805 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
2806 [NLP_STE_ADISC_ISSUE] = "ADISC",
2807 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
2808 [NLP_STE_PRLI_ISSUE] = "PRLI",
2809 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
2810 [NLP_STE_MAPPED_NODE] = "MAPPED",
2811 [NLP_STE_NPR_NODE] = "NPR",
2812 };
2813
2814 if (state < NLP_STE_MAX_STATE && states[state])
2815 strlcpy(buffer, states[state], size);
2816 else
2817 snprintf(buffer, size, "unknown (%d)", state);
2818 return buffer;
2819 }
2820
2821 void
2822 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2823 int state)
2824 {
2825 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2826 int old_state = ndlp->nlp_state;
2827 char name1[16], name2[16];
2828
2829 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2830 "0904 NPort state transition x%06x, %s -> %s\n",
2831 ndlp->nlp_DID,
2832 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
2833 lpfc_nlp_state_name(name2, sizeof(name2), state));
2834
2835 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2836 "node statechg did:x%x old:%d ste:%d",
2837 ndlp->nlp_DID, old_state, state);
2838
2839 if (old_state == NLP_STE_NPR_NODE &&
2840 state != NLP_STE_NPR_NODE)
2841 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2842 if (old_state == NLP_STE_UNMAPPED_NODE) {
2843 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
2844 ndlp->nlp_type &= ~NLP_FC_NODE;
2845 }
2846
2847 if (list_empty(&ndlp->nlp_listp)) {
2848 spin_lock_irq(shost->host_lock);
2849 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
2850 spin_unlock_irq(shost->host_lock);
2851 } else if (old_state)
2852 lpfc_nlp_counters(vport, old_state, -1);
2853
2854 ndlp->nlp_state = state;
2855 lpfc_nlp_counters(vport, state, 1);
2856 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
2857 }
2858
2859 void
2860 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2861 {
2862 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2863
2864 if (list_empty(&ndlp->nlp_listp)) {
2865 spin_lock_irq(shost->host_lock);
2866 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
2867 spin_unlock_irq(shost->host_lock);
2868 }
2869 }
2870
2871 void
2872 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2873 {
2874 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2875
2876 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2877 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2878 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
2879 spin_lock_irq(shost->host_lock);
2880 list_del_init(&ndlp->nlp_listp);
2881 spin_unlock_irq(shost->host_lock);
2882 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
2883 NLP_STE_UNUSED_NODE);
2884 }
2885
2886 static void
2887 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2888 {
2889 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2890 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2891 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
2892 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
2893 NLP_STE_UNUSED_NODE);
2894 }
2895 /**
2896 * lpfc_initialize_node - Initialize all fields of node object
2897 * @vport: Pointer to Virtual Port object.
2898 * @ndlp: Pointer to FC node object.
2899 * @did: FC_ID of the node.
2900 *
2901 * This function is always called when node object need to be initialized.
2902 * It initializes all the fields of the node object. Although the reference
2903 * to phba from @ndlp can be obtained indirectly through it's reference to
2904 * @vport, a direct reference to phba is taken here by @ndlp. This is due
2905 * to the life-span of the @ndlp might go beyond the existence of @vport as
2906 * the final release of ndlp is determined by its reference count. And, the
2907 * operation on @ndlp needs the reference to phba.
2908 **/
2909 static inline void
2910 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2911 uint32_t did)
2912 {
2913 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2914 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
2915 init_timer(&ndlp->nlp_delayfunc);
2916 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2917 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2918 ndlp->nlp_DID = did;
2919 ndlp->vport = vport;
2920 ndlp->phba = vport->phba;
2921 ndlp->nlp_sid = NLP_NO_SID;
2922 kref_init(&ndlp->kref);
2923 NLP_INT_NODE_ACT(ndlp);
2924 atomic_set(&ndlp->cmd_pending, 0);
2925 ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH;
2926 }
2927
2928 struct lpfc_nodelist *
2929 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2930 int state)
2931 {
2932 struct lpfc_hba *phba = vport->phba;
2933 uint32_t did;
2934 unsigned long flags;
2935
2936 if (!ndlp)
2937 return NULL;
2938
2939 spin_lock_irqsave(&phba->ndlp_lock, flags);
2940 /* The ndlp should not be in memory free mode */
2941 if (NLP_CHK_FREE_REQ(ndlp)) {
2942 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2943 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2944 "0277 lpfc_enable_node: ndlp:x%p "
2945 "usgmap:x%x refcnt:%d\n",
2946 (void *)ndlp, ndlp->nlp_usg_map,
2947 atomic_read(&ndlp->kref.refcount));
2948 return NULL;
2949 }
2950 /* The ndlp should not already be in active mode */
2951 if (NLP_CHK_NODE_ACT(ndlp)) {
2952 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2953 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2954 "0278 lpfc_enable_node: ndlp:x%p "
2955 "usgmap:x%x refcnt:%d\n",
2956 (void *)ndlp, ndlp->nlp_usg_map,
2957 atomic_read(&ndlp->kref.refcount));
2958 return NULL;
2959 }
2960
2961 /* Keep the original DID */
2962 did = ndlp->nlp_DID;
2963
2964 /* re-initialize ndlp except of ndlp linked list pointer */
2965 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
2966 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
2967 lpfc_initialize_node(vport, ndlp, did);
2968
2969 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2970
2971 if (state != NLP_STE_UNUSED_NODE)
2972 lpfc_nlp_set_state(vport, ndlp, state);
2973
2974 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2975 "node enable: did:x%x",
2976 ndlp->nlp_DID, 0, 0);
2977 return ndlp;
2978 }
2979
2980 void
2981 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2982 {
2983 /*
2984 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
2985 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
2986 * the ndlp from the vport. The ndlp marked as UNUSED on the list
2987 * until ALL other outstanding threads have completed. We check
2988 * that the ndlp not already in the UNUSED state before we proceed.
2989 */
2990 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2991 return;
2992 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
2993 lpfc_nlp_put(ndlp);
2994 return;
2995 }
2996
2997 /*
2998 * Start / ReStart rescue timer for Discovery / RSCN handling
2999 */
3000 void
3001 lpfc_set_disctmo(struct lpfc_vport *vport)
3002 {
3003 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3004 struct lpfc_hba *phba = vport->phba;
3005 uint32_t tmo;
3006
3007 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
3008 /* For FAN, timeout should be greater than edtov */
3009 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
3010 } else {
3011 /* Normal discovery timeout should be > than ELS/CT timeout
3012 * FC spec states we need 3 * ratov for CT requests
3013 */
3014 tmo = ((phba->fc_ratov * 3) + 3);
3015 }
3016
3017
3018 if (!timer_pending(&vport->fc_disctmo)) {
3019 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3020 "set disc timer: tmo:x%x state:x%x flg:x%x",
3021 tmo, vport->port_state, vport->fc_flag);
3022 }
3023
3024 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
3025 spin_lock_irq(shost->host_lock);
3026 vport->fc_flag |= FC_DISC_TMO;
3027 spin_unlock_irq(shost->host_lock);
3028
3029 /* Start Discovery Timer state <hba_state> */
3030 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3031 "0247 Start Discovery Timer state x%x "
3032 "Data: x%x x%lx x%x x%x\n",
3033 vport->port_state, tmo,
3034 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
3035 vport->fc_adisc_cnt);
3036
3037 return;
3038 }
3039
3040 /*
3041 * Cancel rescue timer for Discovery / RSCN handling
3042 */
3043 int
3044 lpfc_can_disctmo(struct lpfc_vport *vport)
3045 {
3046 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3047 unsigned long iflags;
3048
3049 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3050 "can disc timer: state:x%x rtry:x%x flg:x%x",
3051 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
3052
3053 /* Turn off discovery timer if its running */
3054 if (vport->fc_flag & FC_DISC_TMO) {
3055 spin_lock_irqsave(shost->host_lock, iflags);
3056 vport->fc_flag &= ~FC_DISC_TMO;
3057 spin_unlock_irqrestore(shost->host_lock, iflags);
3058 del_timer_sync(&vport->fc_disctmo);
3059 spin_lock_irqsave(&vport->work_port_lock, iflags);
3060 vport->work_port_events &= ~WORKER_DISC_TMO;
3061 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
3062 }
3063
3064 /* Cancel Discovery Timer state <hba_state> */
3065 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3066 "0248 Cancel Discovery Timer state x%x "
3067 "Data: x%x x%x x%x\n",
3068 vport->port_state, vport->fc_flag,
3069 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
3070 return 0;
3071 }
3072
3073 /*
3074 * Check specified ring for outstanding IOCB on the SLI queue
3075 * Return true if iocb matches the specified nport
3076 */
3077 int
3078 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
3079 struct lpfc_sli_ring *pring,
3080 struct lpfc_iocbq *iocb,
3081 struct lpfc_nodelist *ndlp)
3082 {
3083 struct lpfc_sli *psli = &phba->sli;
3084 IOCB_t *icmd = &iocb->iocb;
3085 struct lpfc_vport *vport = ndlp->vport;
3086
3087 if (iocb->vport != vport)
3088 return 0;
3089
3090 if (pring->ringno == LPFC_ELS_RING) {
3091 switch (icmd->ulpCommand) {
3092 case CMD_GEN_REQUEST64_CR:
3093 if (iocb->context_un.ndlp == ndlp)
3094 return 1;
3095 case CMD_ELS_REQUEST64_CR:
3096 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
3097 return 1;
3098 case CMD_XMIT_ELS_RSP64_CX:
3099 if (iocb->context1 == (uint8_t *) ndlp)
3100 return 1;
3101 }
3102 } else if (pring->ringno == psli->extra_ring) {
3103
3104 } else if (pring->ringno == psli->fcp_ring) {
3105 /* Skip match check if waiting to relogin to FCP target */
3106 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
3107 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
3108 return 0;
3109 }
3110 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
3111 return 1;
3112 }
3113 } else if (pring->ringno == psli->next_ring) {
3114
3115 }
3116 return 0;
3117 }
3118
3119 /*
3120 * Free resources / clean up outstanding I/Os
3121 * associated with nlp_rpi in the LPFC_NODELIST entry.
3122 */
3123 static int
3124 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
3125 {
3126 LIST_HEAD(completions);
3127 struct lpfc_sli *psli;
3128 struct lpfc_sli_ring *pring;
3129 struct lpfc_iocbq *iocb, *next_iocb;
3130 uint32_t i;
3131
3132 lpfc_fabric_abort_nport(ndlp);
3133
3134 /*
3135 * Everything that matches on txcmplq will be returned
3136 * by firmware with a no rpi error.
3137 */
3138 psli = &phba->sli;
3139 if (ndlp->nlp_flag & NLP_RPI_VALID) {
3140 /* Now process each ring */
3141 for (i = 0; i < psli->num_rings; i++) {
3142 pring = &psli->ring[i];
3143
3144 spin_lock_irq(&phba->hbalock);
3145 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
3146 list) {
3147 /*
3148 * Check to see if iocb matches the nport we are
3149 * looking for
3150 */
3151 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
3152 ndlp))) {
3153 /* It matches, so deque and call compl
3154 with an error */
3155 list_move_tail(&iocb->list,
3156 &completions);
3157 pring->txq_cnt--;
3158 }
3159 }
3160 spin_unlock_irq(&phba->hbalock);
3161 }
3162 }
3163
3164 /* Cancel all the IOCBs from the completions list */
3165 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3166 IOERR_SLI_ABORTED);
3167
3168 return 0;
3169 }
3170
3171 /*
3172 * Free rpi associated with LPFC_NODELIST entry.
3173 * This routine is called from lpfc_freenode(), when we are removing
3174 * a LPFC_NODELIST entry. It is also called if the driver initiates a
3175 * LOGO that completes successfully, and we are waiting to PLOGI back
3176 * to the remote NPort. In addition, it is called after we receive
3177 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
3178 * we are waiting to PLOGI back to the remote NPort.
3179 */
3180 int
3181 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3182 {
3183 struct lpfc_hba *phba = vport->phba;
3184 LPFC_MBOXQ_t *mbox;
3185 int rc;
3186
3187 if (ndlp->nlp_flag & NLP_RPI_VALID) {
3188 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3189 if (mbox) {
3190 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
3191 mbox->vport = vport;
3192 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3193 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3194 if (rc == MBX_NOT_FINISHED)
3195 mempool_free(mbox, phba->mbox_mem_pool);
3196 }
3197 lpfc_no_rpi(phba, ndlp);
3198 ndlp->nlp_rpi = 0;
3199 ndlp->nlp_flag &= ~NLP_RPI_VALID;
3200 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3201 return 1;
3202 }
3203 return 0;
3204 }
3205
3206 void
3207 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
3208 {
3209 struct lpfc_hba *phba = vport->phba;
3210 LPFC_MBOXQ_t *mbox;
3211 int rc;
3212
3213 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3214 if (mbox) {
3215 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
3216 mbox->vport = vport;
3217 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3218 mbox->context1 = NULL;
3219 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
3220 if (rc != MBX_TIMEOUT)
3221 mempool_free(mbox, phba->mbox_mem_pool);
3222
3223 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
3224 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3225 "1836 Could not issue "
3226 "unreg_login(all_rpis) status %d\n", rc);
3227 }
3228 }
3229
3230 void
3231 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
3232 {
3233 struct lpfc_hba *phba = vport->phba;
3234 LPFC_MBOXQ_t *mbox;
3235 int rc;
3236
3237 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3238 if (mbox) {
3239 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
3240 mbox->vport = vport;
3241 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3242 mbox->context1 = NULL;
3243 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
3244 if (rc != MBX_TIMEOUT)
3245 mempool_free(mbox, phba->mbox_mem_pool);
3246
3247 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
3248 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3249 "1815 Could not issue "
3250 "unreg_did (default rpis) status %d\n",
3251 rc);
3252 }
3253 }
3254
3255 /*
3256 * Free resources associated with LPFC_NODELIST entry
3257 * so it can be freed.
3258 */
3259 static int
3260 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3261 {
3262 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3263 struct lpfc_hba *phba = vport->phba;
3264 LPFC_MBOXQ_t *mb, *nextmb;
3265 struct lpfc_dmabuf *mp;
3266
3267 /* Cleanup node for NPort <nlp_DID> */
3268 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3269 "0900 Cleanup node for NPort x%x "
3270 "Data: x%x x%x x%x\n",
3271 ndlp->nlp_DID, ndlp->nlp_flag,
3272 ndlp->nlp_state, ndlp->nlp_rpi);
3273 if (NLP_CHK_FREE_REQ(ndlp)) {
3274 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3275 "0280 lpfc_cleanup_node: ndlp:x%p "
3276 "usgmap:x%x refcnt:%d\n",
3277 (void *)ndlp, ndlp->nlp_usg_map,
3278 atomic_read(&ndlp->kref.refcount));
3279 lpfc_dequeue_node(vport, ndlp);
3280 } else {
3281 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3282 "0281 lpfc_cleanup_node: ndlp:x%p "
3283 "usgmap:x%x refcnt:%d\n",
3284 (void *)ndlp, ndlp->nlp_usg_map,
3285 atomic_read(&ndlp->kref.refcount));
3286 lpfc_disable_node(vport, ndlp);
3287 }
3288
3289 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
3290 if ((mb = phba->sli.mbox_active)) {
3291 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
3292 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
3293 mb->context2 = NULL;
3294 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3295 }
3296 }
3297
3298 spin_lock_irq(&phba->hbalock);
3299 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
3300 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
3301 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
3302 mp = (struct lpfc_dmabuf *) (mb->context1);
3303 if (mp) {
3304 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
3305 kfree(mp);
3306 }
3307 list_del(&mb->list);
3308 mempool_free(mb, phba->mbox_mem_pool);
3309 /* We shall not invoke the lpfc_nlp_put to decrement
3310 * the ndlp reference count as we are in the process
3311 * of lpfc_nlp_release.
3312 */
3313 }
3314 }
3315 spin_unlock_irq(&phba->hbalock);
3316
3317 lpfc_els_abort(phba, ndlp);
3318
3319 spin_lock_irq(shost->host_lock);
3320 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
3321 spin_unlock_irq(shost->host_lock);
3322
3323 ndlp->nlp_last_elscmd = 0;
3324 del_timer_sync(&ndlp->nlp_delayfunc);
3325
3326 list_del_init(&ndlp->els_retry_evt.evt_listp);
3327 list_del_init(&ndlp->dev_loss_evt.evt_listp);
3328
3329 lpfc_unreg_rpi(vport, ndlp);
3330
3331 return 0;
3332 }
3333
3334 /*
3335 * Check to see if we can free the nlp back to the freelist.
3336 * If we are in the middle of using the nlp in the discovery state
3337 * machine, defer the free till we reach the end of the state machine.
3338 */
3339 static void
3340 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3341 {
3342 struct lpfc_hba *phba = vport->phba;
3343 struct lpfc_rport_data *rdata;
3344 LPFC_MBOXQ_t *mbox;
3345 int rc;
3346
3347 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3348 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
3349 !(ndlp->nlp_flag & NLP_RPI_VALID)) {
3350 /* For this case we need to cleanup the default rpi
3351 * allocated by the firmware.
3352 */
3353 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
3354 != NULL) {
3355 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
3356 (uint8_t *) &vport->fc_sparam, mbox, 0);
3357 if (rc) {
3358 mempool_free(mbox, phba->mbox_mem_pool);
3359 }
3360 else {
3361 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
3362 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
3363 mbox->vport = vport;
3364 mbox->context2 = NULL;
3365 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3366 if (rc == MBX_NOT_FINISHED) {
3367 mempool_free(mbox, phba->mbox_mem_pool);
3368 }
3369 }
3370 }
3371 }
3372 lpfc_cleanup_node(vport, ndlp);
3373
3374 /*
3375 * We can get here with a non-NULL ndlp->rport because when we
3376 * unregister a rport we don't break the rport/node linkage. So if we
3377 * do, make sure we don't leaving any dangling pointers behind.
3378 */
3379 if (ndlp->rport) {
3380 rdata = ndlp->rport->dd_data;
3381 rdata->pnode = NULL;
3382 ndlp->rport = NULL;
3383 }
3384 }
3385
3386 static int
3387 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3388 uint32_t did)
3389 {
3390 D_ID mydid, ndlpdid, matchdid;
3391
3392 if (did == Bcast_DID)
3393 return 0;
3394
3395 /* First check for Direct match */
3396 if (ndlp->nlp_DID == did)
3397 return 1;
3398
3399 /* Next check for area/domain identically equals 0 match */
3400 mydid.un.word = vport->fc_myDID;
3401 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
3402 return 0;
3403 }
3404
3405 matchdid.un.word = did;
3406 ndlpdid.un.word = ndlp->nlp_DID;
3407 if (matchdid.un.b.id == ndlpdid.un.b.id) {
3408 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
3409 (mydid.un.b.area == matchdid.un.b.area)) {
3410 if ((ndlpdid.un.b.domain == 0) &&
3411 (ndlpdid.un.b.area == 0)) {
3412 if (ndlpdid.un.b.id)
3413 return 1;
3414 }
3415 return 0;
3416 }
3417
3418 matchdid.un.word = ndlp->nlp_DID;
3419 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
3420 (mydid.un.b.area == ndlpdid.un.b.area)) {
3421 if ((matchdid.un.b.domain == 0) &&
3422 (matchdid.un.b.area == 0)) {
3423 if (matchdid.un.b.id)
3424 return 1;
3425 }
3426 }
3427 }
3428 return 0;
3429 }
3430
3431 /* Search for a nodelist entry */
3432 static struct lpfc_nodelist *
3433 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
3434 {
3435 struct lpfc_nodelist *ndlp;
3436 uint32_t data1;
3437
3438 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
3439 if (lpfc_matchdid(vport, ndlp, did)) {
3440 data1 = (((uint32_t) ndlp->nlp_state << 24) |
3441 ((uint32_t) ndlp->nlp_xri << 16) |
3442 ((uint32_t) ndlp->nlp_type << 8) |
3443 ((uint32_t) ndlp->nlp_rpi & 0xff));
3444 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3445 "0929 FIND node DID "
3446 "Data: x%p x%x x%x x%x\n",
3447 ndlp, ndlp->nlp_DID,
3448 ndlp->nlp_flag, data1);
3449 return ndlp;
3450 }
3451 }
3452
3453 /* FIND node did <did> NOT FOUND */
3454 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3455 "0932 FIND node did x%x NOT FOUND.\n", did);
3456 return NULL;
3457 }
3458
3459 struct lpfc_nodelist *
3460 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
3461 {
3462 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3463 struct lpfc_nodelist *ndlp;
3464
3465 spin_lock_irq(shost->host_lock);
3466 ndlp = __lpfc_findnode_did(vport, did);
3467 spin_unlock_irq(shost->host_lock);
3468 return ndlp;
3469 }
3470
3471 struct lpfc_nodelist *
3472 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
3473 {
3474 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3475 struct lpfc_nodelist *ndlp;
3476
3477 ndlp = lpfc_findnode_did(vport, did);
3478 if (!ndlp) {
3479 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
3480 lpfc_rscn_payload_check(vport, did) == 0)
3481 return NULL;
3482 ndlp = (struct lpfc_nodelist *)
3483 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
3484 if (!ndlp)
3485 return NULL;
3486 lpfc_nlp_init(vport, ndlp, did);
3487 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
3488 spin_lock_irq(shost->host_lock);
3489 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3490 spin_unlock_irq(shost->host_lock);
3491 return ndlp;
3492 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3493 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
3494 if (!ndlp)
3495 return NULL;
3496 spin_lock_irq(shost->host_lock);
3497 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3498 spin_unlock_irq(shost->host_lock);
3499 return ndlp;
3500 }
3501
3502 if ((vport->fc_flag & FC_RSCN_MODE) &&
3503 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
3504 if (lpfc_rscn_payload_check(vport, did)) {
3505 /* If we've already recieved a PLOGI from this NPort
3506 * we don't need to try to discover it again.
3507 */
3508 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
3509 return NULL;
3510
3511 /* Since this node is marked for discovery,
3512 * delay timeout is not needed.
3513 */
3514 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3515 spin_lock_irq(shost->host_lock);
3516 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3517 spin_unlock_irq(shost->host_lock);
3518 } else
3519 ndlp = NULL;
3520 } else {
3521 /* If we've already recieved a PLOGI from this NPort,
3522 * or we are already in the process of discovery on it,
3523 * we don't need to try to discover it again.
3524 */
3525 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
3526 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
3527 ndlp->nlp_flag & NLP_RCV_PLOGI)
3528 return NULL;
3529 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
3530 spin_lock_irq(shost->host_lock);
3531 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3532 spin_unlock_irq(shost->host_lock);
3533 }
3534 return ndlp;
3535 }
3536
3537 /* Build a list of nodes to discover based on the loopmap */
3538 void
3539 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
3540 {
3541 struct lpfc_hba *phba = vport->phba;
3542 int j;
3543 uint32_t alpa, index;
3544
3545 if (!lpfc_is_link_up(phba))
3546 return;
3547
3548 if (phba->fc_topology != TOPOLOGY_LOOP)
3549 return;
3550
3551 /* Check for loop map present or not */
3552 if (phba->alpa_map[0]) {
3553 for (j = 1; j <= phba->alpa_map[0]; j++) {
3554 alpa = phba->alpa_map[j];
3555 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
3556 continue;
3557 lpfc_setup_disc_node(vport, alpa);
3558 }
3559 } else {
3560 /* No alpamap, so try all alpa's */
3561 for (j = 0; j < FC_MAXLOOP; j++) {
3562 /* If cfg_scan_down is set, start from highest
3563 * ALPA (0xef) to lowest (0x1).
3564 */
3565 if (vport->cfg_scan_down)
3566 index = j;
3567 else
3568 index = FC_MAXLOOP - j - 1;
3569 alpa = lpfcAlpaArray[index];
3570 if ((vport->fc_myDID & 0xff) == alpa)
3571 continue;
3572 lpfc_setup_disc_node(vport, alpa);
3573 }
3574 }
3575 return;
3576 }
3577
3578 void
3579 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
3580 {
3581 LPFC_MBOXQ_t *mbox;
3582 struct lpfc_sli *psli = &phba->sli;
3583 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
3584 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
3585 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
3586 int rc;
3587
3588 /*
3589 * if it's not a physical port or if we already send
3590 * clear_la then don't send it.
3591 */
3592 if ((phba->link_state >= LPFC_CLEAR_LA) ||
3593 (vport->port_type != LPFC_PHYSICAL_PORT) ||
3594 (phba->sli_rev == LPFC_SLI_REV4))
3595 return;
3596
3597 /* Link up discovery */
3598 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
3599 phba->link_state = LPFC_CLEAR_LA;
3600 lpfc_clear_la(phba, mbox);
3601 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
3602 mbox->vport = vport;
3603 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3604 if (rc == MBX_NOT_FINISHED) {
3605 mempool_free(mbox, phba->mbox_mem_pool);
3606 lpfc_disc_flush_list(vport);
3607 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
3608 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
3609 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
3610 phba->link_state = LPFC_HBA_ERROR;
3611 }
3612 }
3613 }
3614
3615 /* Reg_vpi to tell firmware to resume normal operations */
3616 void
3617 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
3618 {
3619 LPFC_MBOXQ_t *regvpimbox;
3620
3621 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3622 if (regvpimbox) {
3623 lpfc_reg_vpi(vport, regvpimbox);
3624 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
3625 regvpimbox->vport = vport;
3626 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
3627 == MBX_NOT_FINISHED) {
3628 mempool_free(regvpimbox, phba->mbox_mem_pool);
3629 }
3630 }
3631 }
3632
3633 /* Start Link up / RSCN discovery on NPR nodes */
3634 void
3635 lpfc_disc_start(struct lpfc_vport *vport)
3636 {
3637 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3638 struct lpfc_hba *phba = vport->phba;
3639 uint32_t num_sent;
3640 uint32_t clear_la_pending;
3641 int did_changed;
3642
3643 if (!lpfc_is_link_up(phba))
3644 return;
3645
3646 if (phba->link_state == LPFC_CLEAR_LA)
3647 clear_la_pending = 1;
3648 else
3649 clear_la_pending = 0;
3650
3651 if (vport->port_state < LPFC_VPORT_READY)
3652 vport->port_state = LPFC_DISC_AUTH;
3653
3654 lpfc_set_disctmo(vport);
3655
3656 if (vport->fc_prevDID == vport->fc_myDID)
3657 did_changed = 0;
3658 else
3659 did_changed = 1;
3660
3661 vport->fc_prevDID = vport->fc_myDID;
3662 vport->num_disc_nodes = 0;
3663
3664 /* Start Discovery state <hba_state> */
3665 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3666 "0202 Start Discovery hba state x%x "
3667 "Data: x%x x%x x%x\n",
3668 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
3669 vport->fc_adisc_cnt);
3670
3671 /* First do ADISCs - if any */
3672 num_sent = lpfc_els_disc_adisc(vport);
3673
3674 if (num_sent)
3675 return;
3676
3677 /*
3678 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
3679 * continue discovery.
3680 */
3681 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3682 !(vport->fc_flag & FC_PT2PT) &&
3683 !(vport->fc_flag & FC_RSCN_MODE) &&
3684 (phba->sli_rev < LPFC_SLI_REV4)) {
3685 lpfc_issue_reg_vpi(phba, vport);
3686 return;
3687 }
3688
3689 /*
3690 * For SLI2, we need to set port_state to READY and continue
3691 * discovery.
3692 */
3693 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
3694 /* If we get here, there is nothing to ADISC */
3695 if (vport->port_type == LPFC_PHYSICAL_PORT)
3696 lpfc_issue_clear_la(phba, vport);
3697
3698 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
3699 vport->num_disc_nodes = 0;
3700 /* go thru NPR nodes and issue ELS PLOGIs */
3701 if (vport->fc_npr_cnt)
3702 lpfc_els_disc_plogi(vport);
3703
3704 if (!vport->num_disc_nodes) {
3705 spin_lock_irq(shost->host_lock);
3706 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3707 spin_unlock_irq(shost->host_lock);
3708 lpfc_can_disctmo(vport);
3709 }
3710 }
3711 vport->port_state = LPFC_VPORT_READY;
3712 } else {
3713 /* Next do PLOGIs - if any */
3714 num_sent = lpfc_els_disc_plogi(vport);
3715
3716 if (num_sent)
3717 return;
3718
3719 if (vport->fc_flag & FC_RSCN_MODE) {
3720 /* Check to see if more RSCNs came in while we
3721 * were processing this one.
3722 */
3723 if ((vport->fc_rscn_id_cnt == 0) &&
3724 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
3725 spin_lock_irq(shost->host_lock);
3726 vport->fc_flag &= ~FC_RSCN_MODE;
3727 spin_unlock_irq(shost->host_lock);
3728 lpfc_can_disctmo(vport);
3729 } else
3730 lpfc_els_handle_rscn(vport);
3731 }
3732 }
3733 return;
3734 }
3735
3736 /*
3737 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
3738 * ring the match the sppecified nodelist.
3739 */
3740 static void
3741 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
3742 {
3743 LIST_HEAD(completions);
3744 struct lpfc_sli *psli;
3745 IOCB_t *icmd;
3746 struct lpfc_iocbq *iocb, *next_iocb;
3747 struct lpfc_sli_ring *pring;
3748
3749 psli = &phba->sli;
3750 pring = &psli->ring[LPFC_ELS_RING];
3751
3752 /* Error matching iocb on txq or txcmplq
3753 * First check the txq.
3754 */
3755 spin_lock_irq(&phba->hbalock);
3756 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
3757 if (iocb->context1 != ndlp) {
3758 continue;
3759 }
3760 icmd = &iocb->iocb;
3761 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
3762 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
3763
3764 list_move_tail(&iocb->list, &completions);
3765 pring->txq_cnt--;
3766 }
3767 }
3768
3769 /* Next check the txcmplq */
3770 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
3771 if (iocb->context1 != ndlp) {
3772 continue;
3773 }
3774 icmd = &iocb->iocb;
3775 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
3776 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
3777 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3778 }
3779 }
3780 spin_unlock_irq(&phba->hbalock);
3781
3782 /* Cancel all the IOCBs from the completions list */
3783 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3784 IOERR_SLI_ABORTED);
3785 }
3786
3787 static void
3788 lpfc_disc_flush_list(struct lpfc_vport *vport)
3789 {
3790 struct lpfc_nodelist *ndlp, *next_ndlp;
3791 struct lpfc_hba *phba = vport->phba;
3792
3793 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
3794 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
3795 nlp_listp) {
3796 if (!NLP_CHK_NODE_ACT(ndlp))
3797 continue;
3798 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
3799 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
3800 lpfc_free_tx(phba, ndlp);
3801 }
3802 }
3803 }
3804 }
3805
3806 void
3807 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
3808 {
3809 lpfc_els_flush_rscn(vport);
3810 lpfc_els_flush_cmd(vport);
3811 lpfc_disc_flush_list(vport);
3812 }
3813
3814 /*****************************************************************************/
3815 /*
3816 * NAME: lpfc_disc_timeout
3817 *
3818 * FUNCTION: Fibre Channel driver discovery timeout routine.
3819 *
3820 * EXECUTION ENVIRONMENT: interrupt only
3821 *
3822 * CALLED FROM:
3823 * Timer function
3824 *
3825 * RETURNS:
3826 * none
3827 */
3828 /*****************************************************************************/
3829 void
3830 lpfc_disc_timeout(unsigned long ptr)
3831 {
3832 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
3833 struct lpfc_hba *phba = vport->phba;
3834 uint32_t tmo_posted;
3835 unsigned long flags = 0;
3836
3837 if (unlikely(!phba))
3838 return;
3839
3840 spin_lock_irqsave(&vport->work_port_lock, flags);
3841 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
3842 if (!tmo_posted)
3843 vport->work_port_events |= WORKER_DISC_TMO;
3844 spin_unlock_irqrestore(&vport->work_port_lock, flags);
3845
3846 if (!tmo_posted)
3847 lpfc_worker_wake_up(phba);
3848 return;
3849 }
3850
3851 static void
3852 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
3853 {
3854 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3855 struct lpfc_hba *phba = vport->phba;
3856 struct lpfc_sli *psli = &phba->sli;
3857 struct lpfc_nodelist *ndlp, *next_ndlp;
3858 LPFC_MBOXQ_t *initlinkmbox;
3859 int rc, clrlaerr = 0;
3860
3861 if (!(vport->fc_flag & FC_DISC_TMO))
3862 return;
3863
3864 spin_lock_irq(shost->host_lock);
3865 vport->fc_flag &= ~FC_DISC_TMO;
3866 spin_unlock_irq(shost->host_lock);
3867
3868 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3869 "disc timeout: state:x%x rtry:x%x flg:x%x",
3870 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
3871
3872 switch (vport->port_state) {
3873
3874 case LPFC_LOCAL_CFG_LINK:
3875 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
3876 * FAN
3877 */
3878 /* FAN timeout */
3879 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
3880 "0221 FAN timeout\n");
3881 /* Start discovery by sending FLOGI, clean up old rpis */
3882 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
3883 nlp_listp) {
3884 if (!NLP_CHK_NODE_ACT(ndlp))
3885 continue;
3886 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
3887 continue;
3888 if (ndlp->nlp_type & NLP_FABRIC) {
3889 /* Clean up the ndlp on Fabric connections */
3890 lpfc_drop_node(vport, ndlp);
3891
3892 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
3893 /* Fail outstanding IO now since device
3894 * is marked for PLOGI.
3895 */
3896 lpfc_unreg_rpi(vport, ndlp);
3897 }
3898 }
3899 if (vport->port_state != LPFC_FLOGI) {
3900 lpfc_initial_flogi(vport);
3901 return;
3902 }
3903 break;
3904
3905 case LPFC_FDISC:
3906 case LPFC_FLOGI:
3907 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
3908 /* Initial FLOGI timeout */
3909 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3910 "0222 Initial %s timeout\n",
3911 vport->vpi ? "FDISC" : "FLOGI");
3912
3913 /* Assume no Fabric and go on with discovery.
3914 * Check for outstanding ELS FLOGI to abort.
3915 */
3916
3917 /* FLOGI failed, so just use loop map to make discovery list */
3918 lpfc_disc_list_loopmap(vport);
3919
3920 /* Start discovery */
3921 lpfc_disc_start(vport);
3922 break;
3923
3924 case LPFC_FABRIC_CFG_LINK:
3925 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
3926 NameServer login */
3927 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3928 "0223 Timeout while waiting for "
3929 "NameServer login\n");
3930 /* Next look for NameServer ndlp */
3931 ndlp = lpfc_findnode_did(vport, NameServer_DID);
3932 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
3933 lpfc_els_abort(phba, ndlp);
3934
3935 /* ReStart discovery */
3936 goto restart_disc;
3937
3938 case LPFC_NS_QRY:
3939 /* Check for wait for NameServer Rsp timeout */
3940 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3941 "0224 NameServer Query timeout "
3942 "Data: x%x x%x\n",
3943 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
3944
3945 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
3946 /* Try it one more time */
3947 vport->fc_ns_retry++;
3948 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
3949 vport->fc_ns_retry, 0);
3950 if (rc == 0)
3951 break;
3952 }
3953 vport->fc_ns_retry = 0;
3954
3955 restart_disc:
3956 /*
3957 * Discovery is over.
3958 * set port_state to PORT_READY if SLI2.
3959 * cmpl_reg_vpi will set port_state to READY for SLI3.
3960 */
3961 if (phba->sli_rev < LPFC_SLI_REV4) {
3962 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3963 lpfc_issue_reg_vpi(phba, vport);
3964 else { /* NPIV Not enabled */
3965 lpfc_issue_clear_la(phba, vport);
3966 vport->port_state = LPFC_VPORT_READY;
3967 }
3968 }
3969
3970 /* Setup and issue mailbox INITIALIZE LINK command */
3971 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3972 if (!initlinkmbox) {
3973 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3974 "0206 Device Discovery "
3975 "completion error\n");
3976 phba->link_state = LPFC_HBA_ERROR;
3977 break;
3978 }
3979
3980 lpfc_linkdown(phba);
3981 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
3982 phba->cfg_link_speed);
3983 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
3984 initlinkmbox->vport = vport;
3985 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3986 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
3987 lpfc_set_loopback_flag(phba);
3988 if (rc == MBX_NOT_FINISHED)
3989 mempool_free(initlinkmbox, phba->mbox_mem_pool);
3990
3991 break;
3992
3993 case LPFC_DISC_AUTH:
3994 /* Node Authentication timeout */
3995 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3996 "0227 Node Authentication timeout\n");
3997 lpfc_disc_flush_list(vport);
3998
3999 /*
4000 * set port_state to PORT_READY if SLI2.
4001 * cmpl_reg_vpi will set port_state to READY for SLI3.
4002 */
4003 if (phba->sli_rev < LPFC_SLI_REV4) {
4004 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
4005 lpfc_issue_reg_vpi(phba, vport);
4006 else { /* NPIV Not enabled */
4007 lpfc_issue_clear_la(phba, vport);
4008 vport->port_state = LPFC_VPORT_READY;
4009 }
4010 }
4011 break;
4012
4013 case LPFC_VPORT_READY:
4014 if (vport->fc_flag & FC_RSCN_MODE) {
4015 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4016 "0231 RSCN timeout Data: x%x "
4017 "x%x\n",
4018 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
4019
4020 /* Cleanup any outstanding ELS commands */
4021 lpfc_els_flush_cmd(vport);
4022
4023 lpfc_els_flush_rscn(vport);
4024 lpfc_disc_flush_list(vport);
4025 }
4026 break;
4027
4028 default:
4029 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4030 "0273 Unexpected discovery timeout, "
4031 "vport State x%x\n", vport->port_state);
4032 break;
4033 }
4034
4035 switch (phba->link_state) {
4036 case LPFC_CLEAR_LA:
4037 /* CLEAR LA timeout */
4038 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4039 "0228 CLEAR LA timeout\n");
4040 clrlaerr = 1;
4041 break;
4042
4043 case LPFC_LINK_UP:
4044 lpfc_issue_clear_la(phba, vport);
4045 /* Drop thru */
4046 case LPFC_LINK_UNKNOWN:
4047 case LPFC_WARM_START:
4048 case LPFC_INIT_START:
4049 case LPFC_INIT_MBX_CMDS:
4050 case LPFC_LINK_DOWN:
4051 case LPFC_HBA_ERROR:
4052 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4053 "0230 Unexpected timeout, hba link "
4054 "state x%x\n", phba->link_state);
4055 clrlaerr = 1;
4056 break;
4057
4058 case LPFC_HBA_READY:
4059 break;
4060 }
4061
4062 if (clrlaerr) {
4063 lpfc_disc_flush_list(vport);
4064 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4065 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4066 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4067 vport->port_state = LPFC_VPORT_READY;
4068 }
4069
4070 return;
4071 }
4072
4073 /*
4074 * This routine handles processing a NameServer REG_LOGIN mailbox
4075 * command upon completion. It is setup in the LPFC_MBOXQ
4076 * as the completion routine when the command is
4077 * handed off to the SLI layer.
4078 */
4079 void
4080 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4081 {
4082 MAILBOX_t *mb = &pmb->u.mb;
4083 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
4084 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
4085 struct lpfc_vport *vport = pmb->vport;
4086
4087 pmb->context1 = NULL;
4088
4089 ndlp->nlp_rpi = mb->un.varWords[0];
4090 ndlp->nlp_flag |= NLP_RPI_VALID;
4091 ndlp->nlp_type |= NLP_FABRIC;
4092 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4093
4094 /*
4095 * Start issuing Fabric-Device Management Interface (FDMI) command to
4096 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
4097 * fdmi-on=2 (supporting RPA/hostnmae)
4098 */
4099
4100 if (vport->cfg_fdmi_on == 1)
4101 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
4102 else
4103 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
4104
4105 /* decrement the node reference count held for this callback
4106 * function.
4107 */
4108 lpfc_nlp_put(ndlp);
4109 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4110 kfree(mp);
4111 mempool_free(pmb, phba->mbox_mem_pool);
4112
4113 return;
4114 }
4115
4116 static int
4117 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
4118 {
4119 uint16_t *rpi = param;
4120
4121 return ndlp->nlp_rpi == *rpi;
4122 }
4123
4124 static int
4125 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
4126 {
4127 return memcmp(&ndlp->nlp_portname, param,
4128 sizeof(ndlp->nlp_portname)) == 0;
4129 }
4130
4131 static struct lpfc_nodelist *
4132 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
4133 {
4134 struct lpfc_nodelist *ndlp;
4135
4136 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4137 if (filter(ndlp, param))
4138 return ndlp;
4139 }
4140 return NULL;
4141 }
4142
4143 /*
4144 * This routine looks up the ndlp lists for the given RPI. If rpi found it
4145 * returns the node list element pointer else return NULL.
4146 */
4147 struct lpfc_nodelist *
4148 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
4149 {
4150 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
4151 }
4152
4153 /*
4154 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
4155 * returns the node element list pointer else return NULL.
4156 */
4157 struct lpfc_nodelist *
4158 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
4159 {
4160 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4161 struct lpfc_nodelist *ndlp;
4162
4163 spin_lock_irq(shost->host_lock);
4164 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
4165 spin_unlock_irq(shost->host_lock);
4166 return ndlp;
4167 }
4168
4169 void
4170 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4171 uint32_t did)
4172 {
4173 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
4174
4175 lpfc_initialize_node(vport, ndlp, did);
4176 INIT_LIST_HEAD(&ndlp->nlp_listp);
4177
4178 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4179 "node init: did:x%x",
4180 ndlp->nlp_DID, 0, 0);
4181
4182 return;
4183 }
4184
4185 /* This routine releases all resources associated with a specifc NPort's ndlp
4186 * and mempool_free's the nodelist.
4187 */
4188 static void
4189 lpfc_nlp_release(struct kref *kref)
4190 {
4191 struct lpfc_hba *phba;
4192 unsigned long flags;
4193 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
4194 kref);
4195
4196 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4197 "node release: did:x%x flg:x%x type:x%x",
4198 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4199
4200 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4201 "0279 lpfc_nlp_release: ndlp:x%p "
4202 "usgmap:x%x refcnt:%d\n",
4203 (void *)ndlp, ndlp->nlp_usg_map,
4204 atomic_read(&ndlp->kref.refcount));
4205
4206 /* remove ndlp from action. */
4207 lpfc_nlp_remove(ndlp->vport, ndlp);
4208
4209 /* clear the ndlp active flag for all release cases */
4210 phba = ndlp->phba;
4211 spin_lock_irqsave(&phba->ndlp_lock, flags);
4212 NLP_CLR_NODE_ACT(ndlp);
4213 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4214
4215 /* free ndlp memory for final ndlp release */
4216 if (NLP_CHK_FREE_REQ(ndlp)) {
4217 kfree(ndlp->lat_data);
4218 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
4219 }
4220 }
4221
4222 /* This routine bumps the reference count for a ndlp structure to ensure
4223 * that one discovery thread won't free a ndlp while another discovery thread
4224 * is using it.
4225 */
4226 struct lpfc_nodelist *
4227 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
4228 {
4229 struct lpfc_hba *phba;
4230 unsigned long flags;
4231
4232 if (ndlp) {
4233 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4234 "node get: did:x%x flg:x%x refcnt:x%x",
4235 ndlp->nlp_DID, ndlp->nlp_flag,
4236 atomic_read(&ndlp->kref.refcount));
4237 /* The check of ndlp usage to prevent incrementing the
4238 * ndlp reference count that is in the process of being
4239 * released.
4240 */
4241 phba = ndlp->phba;
4242 spin_lock_irqsave(&phba->ndlp_lock, flags);
4243 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
4244 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4245 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4246 "0276 lpfc_nlp_get: ndlp:x%p "
4247 "usgmap:x%x refcnt:%d\n",
4248 (void *)ndlp, ndlp->nlp_usg_map,
4249 atomic_read(&ndlp->kref.refcount));
4250 return NULL;
4251 } else
4252 kref_get(&ndlp->kref);
4253 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4254 }
4255 return ndlp;
4256 }
4257
4258 /* This routine decrements the reference count for a ndlp structure. If the
4259 * count goes to 0, this indicates the the associated nodelist should be
4260 * freed. Returning 1 indicates the ndlp resource has been released; on the
4261 * other hand, returning 0 indicates the ndlp resource has not been released
4262 * yet.
4263 */
4264 int
4265 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
4266 {
4267 struct lpfc_hba *phba;
4268 unsigned long flags;
4269
4270 if (!ndlp)
4271 return 1;
4272
4273 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4274 "node put: did:x%x flg:x%x refcnt:x%x",
4275 ndlp->nlp_DID, ndlp->nlp_flag,
4276 atomic_read(&ndlp->kref.refcount));
4277 phba = ndlp->phba;
4278 spin_lock_irqsave(&phba->ndlp_lock, flags);
4279 /* Check the ndlp memory free acknowledge flag to avoid the
4280 * possible race condition that kref_put got invoked again
4281 * after previous one has done ndlp memory free.
4282 */
4283 if (NLP_CHK_FREE_ACK(ndlp)) {
4284 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4285 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4286 "0274 lpfc_nlp_put: ndlp:x%p "
4287 "usgmap:x%x refcnt:%d\n",
4288 (void *)ndlp, ndlp->nlp_usg_map,
4289 atomic_read(&ndlp->kref.refcount));
4290 return 1;
4291 }
4292 /* Check the ndlp inactivate log flag to avoid the possible
4293 * race condition that kref_put got invoked again after ndlp
4294 * is already in inactivating state.
4295 */
4296 if (NLP_CHK_IACT_REQ(ndlp)) {
4297 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4298 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4299 "0275 lpfc_nlp_put: ndlp:x%p "
4300 "usgmap:x%x refcnt:%d\n",
4301 (void *)ndlp, ndlp->nlp_usg_map,
4302 atomic_read(&ndlp->kref.refcount));
4303 return 1;
4304 }
4305 /* For last put, mark the ndlp usage flags to make sure no
4306 * other kref_get and kref_put on the same ndlp shall get
4307 * in between the process when the final kref_put has been
4308 * invoked on this ndlp.
4309 */
4310 if (atomic_read(&ndlp->kref.refcount) == 1) {
4311 /* Indicate ndlp is put to inactive state. */
4312 NLP_SET_IACT_REQ(ndlp);
4313 /* Acknowledge ndlp memory free has been seen. */
4314 if (NLP_CHK_FREE_REQ(ndlp))
4315 NLP_SET_FREE_ACK(ndlp);
4316 }
4317 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4318 /* Note, the kref_put returns 1 when decrementing a reference
4319 * count that was 1, it invokes the release callback function,
4320 * but it still left the reference count as 1 (not actually
4321 * performs the last decrementation). Otherwise, it actually
4322 * decrements the reference count and returns 0.
4323 */
4324 return kref_put(&ndlp->kref, lpfc_nlp_release);
4325 }
4326
4327 /* This routine free's the specified nodelist if it is not in use
4328 * by any other discovery thread. This routine returns 1 if the
4329 * ndlp has been freed. A return value of 0 indicates the ndlp is
4330 * not yet been released.
4331 */
4332 int
4333 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
4334 {
4335 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4336 "node not used: did:x%x flg:x%x refcnt:x%x",
4337 ndlp->nlp_DID, ndlp->nlp_flag,
4338 atomic_read(&ndlp->kref.refcount));
4339 if (atomic_read(&ndlp->kref.refcount) == 1)
4340 if (lpfc_nlp_put(ndlp))
4341 return 1;
4342 return 0;
4343 }
4344
4345 /**
4346 * lpfc_fcf_inuse - Check if FCF can be unregistered.
4347 * @phba: Pointer to hba context object.
4348 *
4349 * This function iterate through all FC nodes associated
4350 * will all vports to check if there is any node with
4351 * fc_rports associated with it. If there is an fc_rport
4352 * associated with the node, then the node is either in
4353 * discovered state or its devloss_timer is pending.
4354 */
4355 static int
4356 lpfc_fcf_inuse(struct lpfc_hba *phba)
4357 {
4358 struct lpfc_vport **vports;
4359 int i, ret = 0;
4360 struct lpfc_nodelist *ndlp;
4361 struct Scsi_Host *shost;
4362
4363 vports = lpfc_create_vport_work_array(phba);
4364
4365 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4366 shost = lpfc_shost_from_vport(vports[i]);
4367 spin_lock_irq(shost->host_lock);
4368 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
4369 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
4370 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
4371 ret = 1;
4372 spin_unlock_irq(shost->host_lock);
4373 goto out;
4374 } else {
4375 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
4376 "2624 RPI %x DID %x flg %x still "
4377 "logged in\n",
4378 ndlp->nlp_rpi, ndlp->nlp_DID,
4379 ndlp->nlp_flag);
4380 if (ndlp->nlp_flag & NLP_RPI_VALID)
4381 ret = 1;
4382 }
4383 }
4384 spin_unlock_irq(shost->host_lock);
4385 }
4386 out:
4387 lpfc_destroy_vport_work_array(phba, vports);
4388 return ret;
4389 }
4390
4391 /**
4392 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
4393 * @phba: Pointer to hba context object.
4394 * @mboxq: Pointer to mailbox object.
4395 *
4396 * This function frees memory associated with the mailbox command.
4397 */
4398 static void
4399 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
4400 {
4401 struct lpfc_vport *vport = mboxq->vport;
4402
4403 if (mboxq->u.mb.mbxStatus) {
4404 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4405 "2555 UNREG_VFI mbxStatus error x%x "
4406 "HBA state x%x\n",
4407 mboxq->u.mb.mbxStatus, vport->port_state);
4408 }
4409 mempool_free(mboxq, phba->mbox_mem_pool);
4410 return;
4411 }
4412
4413 /**
4414 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
4415 * @phba: Pointer to hba context object.
4416 * @mboxq: Pointer to mailbox object.
4417 *
4418 * This function frees memory associated with the mailbox command.
4419 */
4420 static void
4421 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
4422 {
4423 struct lpfc_vport *vport = mboxq->vport;
4424
4425 if (mboxq->u.mb.mbxStatus) {
4426 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4427 "2550 UNREG_FCFI mbxStatus error x%x "
4428 "HBA state x%x\n",
4429 mboxq->u.mb.mbxStatus, vport->port_state);
4430 }
4431 mempool_free(mboxq, phba->mbox_mem_pool);
4432 return;
4433 }
4434
4435 /**
4436 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
4437 * @phba: Pointer to hba context object.
4438 *
4439 * This function check if there are any connected remote port for the FCF and
4440 * if all the devices are disconnected, this function unregister FCFI.
4441 * This function also tries to use another FCF for discovery.
4442 */
4443 void
4444 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
4445 {
4446 LPFC_MBOXQ_t *mbox;
4447 int rc;
4448 struct lpfc_vport **vports;
4449 int i;
4450
4451 spin_lock_irq(&phba->hbalock);
4452 /*
4453 * If HBA is not running in FIP mode or
4454 * If HBA does not support FCoE or
4455 * If FCF is not registered.
4456 * do nothing.
4457 */
4458 if (!(phba->hba_flag & HBA_FCOE_SUPPORT) ||
4459 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
4460 (!(phba->hba_flag & HBA_FIP_SUPPORT))) {
4461 spin_unlock_irq(&phba->hbalock);
4462 return;
4463 }
4464 spin_unlock_irq(&phba->hbalock);
4465
4466 if (lpfc_fcf_inuse(phba))
4467 return;
4468
4469 /* At this point, all discovery is aborted */
4470 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4471
4472 /* Unregister VPIs */
4473 vports = lpfc_create_vport_work_array(phba);
4474 if (vports &&
4475 (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
4476 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4477 lpfc_mbx_unreg_vpi(vports[i]);
4478 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
4479 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
4480 }
4481 lpfc_destroy_vport_work_array(phba, vports);
4482
4483 /* Unregister VFI */
4484 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4485 if (!mbox) {
4486 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4487 "2556 UNREG_VFI mbox allocation failed"
4488 "HBA state x%x\n",
4489 phba->pport->port_state);
4490 return;
4491 }
4492
4493 lpfc_unreg_vfi(mbox, phba->pport);
4494 mbox->vport = phba->pport;
4495 mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl;
4496
4497 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4498 if (rc == MBX_NOT_FINISHED) {
4499 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4500 "2557 UNREG_VFI issue mbox failed rc x%x "
4501 "HBA state x%x\n",
4502 rc, phba->pport->port_state);
4503 mempool_free(mbox, phba->mbox_mem_pool);
4504 return;
4505 }
4506
4507 /* Unregister FCF */
4508 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4509 if (!mbox) {
4510 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4511 "2551 UNREG_FCFI mbox allocation failed"
4512 "HBA state x%x\n",
4513 phba->pport->port_state);
4514 return;
4515 }
4516
4517 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
4518 mbox->vport = phba->pport;
4519 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
4520 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4521
4522 if (rc == MBX_NOT_FINISHED) {
4523 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4524 "2552 UNREG_FCFI issue mbox failed rc x%x "
4525 "HBA state x%x\n",
4526 rc, phba->pport->port_state);
4527 mempool_free(mbox, phba->mbox_mem_pool);
4528 return;
4529 }
4530
4531 spin_lock_irq(&phba->hbalock);
4532 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_REGISTERED |
4533 FCF_DISCOVERED | FCF_BOOT_ENABLE | FCF_IN_USE |
4534 FCF_VALID_VLAN);
4535 spin_unlock_irq(&phba->hbalock);
4536
4537 /*
4538 * If driver is not unloading, check if there is any other
4539 * FCF record that can be used for discovery.
4540 */
4541 if ((phba->pport->load_flag & FC_UNLOADING) ||
4542 (phba->link_state < LPFC_LINK_UP))
4543 return;
4544
4545 rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
4546
4547 if (rc)
4548 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4549 "2553 lpfc_unregister_unused_fcf failed to read FCF"
4550 " record HBA state x%x\n",
4551 phba->pport->port_state);
4552 }
4553
4554 /**
4555 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
4556 * @phba: Pointer to hba context object.
4557 * @buff: Buffer containing the FCF connection table as in the config
4558 * region.
4559 * This function create driver data structure for the FCF connection
4560 * record table read from config region 23.
4561 */
4562 static void
4563 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
4564 uint8_t *buff)
4565 {
4566 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4567 struct lpfc_fcf_conn_hdr *conn_hdr;
4568 struct lpfc_fcf_conn_rec *conn_rec;
4569 uint32_t record_count;
4570 int i;
4571
4572 /* Free the current connect table */
4573 list_for_each_entry_safe(conn_entry, next_conn_entry,
4574 &phba->fcf_conn_rec_list, list) {
4575 list_del_init(&conn_entry->list);
4576 kfree(conn_entry);
4577 }
4578
4579 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
4580 record_count = conn_hdr->length * sizeof(uint32_t)/
4581 sizeof(struct lpfc_fcf_conn_rec);
4582
4583 conn_rec = (struct lpfc_fcf_conn_rec *)
4584 (buff + sizeof(struct lpfc_fcf_conn_hdr));
4585
4586 for (i = 0; i < record_count; i++) {
4587 if (!(conn_rec[i].flags & FCFCNCT_VALID))
4588 continue;
4589 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
4590 GFP_KERNEL);
4591 if (!conn_entry) {
4592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4593 "2566 Failed to allocate connection"
4594 " table entry\n");
4595 return;
4596 }
4597
4598 memcpy(&conn_entry->conn_rec, &conn_rec[i],
4599 sizeof(struct lpfc_fcf_conn_rec));
4600 conn_entry->conn_rec.vlan_tag =
4601 le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF;
4602 conn_entry->conn_rec.flags =
4603 le16_to_cpu(conn_entry->conn_rec.flags);
4604 list_add_tail(&conn_entry->list,
4605 &phba->fcf_conn_rec_list);
4606 }
4607 }
4608
4609 /**
4610 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
4611 * @phba: Pointer to hba context object.
4612 * @buff: Buffer containing the FCoE parameter data structure.
4613 *
4614 * This function update driver data structure with config
4615 * parameters read from config region 23.
4616 */
4617 static void
4618 lpfc_read_fcoe_param(struct lpfc_hba *phba,
4619 uint8_t *buff)
4620 {
4621 struct lpfc_fip_param_hdr *fcoe_param_hdr;
4622 struct lpfc_fcoe_params *fcoe_param;
4623
4624 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
4625 buff;
4626 fcoe_param = (struct lpfc_fcoe_params *)
4627 (buff + sizeof(struct lpfc_fip_param_hdr));
4628
4629 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
4630 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
4631 return;
4632
4633 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
4634 phba->valid_vlan = 1;
4635 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
4636 0xFFF;
4637 }
4638
4639 phba->fc_map[0] = fcoe_param->fc_map[0];
4640 phba->fc_map[1] = fcoe_param->fc_map[1];
4641 phba->fc_map[2] = fcoe_param->fc_map[2];
4642 return;
4643 }
4644
4645 /**
4646 * lpfc_get_rec_conf23 - Get a record type in config region data.
4647 * @buff: Buffer containing config region 23 data.
4648 * @size: Size of the data buffer.
4649 * @rec_type: Record type to be searched.
4650 *
4651 * This function searches config region data to find the begining
4652 * of the record specified by record_type. If record found, this
4653 * function return pointer to the record else return NULL.
4654 */
4655 static uint8_t *
4656 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
4657 {
4658 uint32_t offset = 0, rec_length;
4659
4660 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
4661 (size < sizeof(uint32_t)))
4662 return NULL;
4663
4664 rec_length = buff[offset + 1];
4665
4666 /*
4667 * One TLV record has one word header and number of data words
4668 * specified in the rec_length field of the record header.
4669 */
4670 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
4671 <= size) {
4672 if (buff[offset] == rec_type)
4673 return &buff[offset];
4674
4675 if (buff[offset] == LPFC_REGION23_LAST_REC)
4676 return NULL;
4677
4678 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
4679 rec_length = buff[offset + 1];
4680 }
4681 return NULL;
4682 }
4683
4684 /**
4685 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
4686 * @phba: Pointer to lpfc_hba data structure.
4687 * @buff: Buffer containing config region 23 data.
4688 * @size: Size of the data buffer.
4689 *
4690 * This fuction parse the FCoE config parameters in config region 23 and
4691 * populate driver data structure with the parameters.
4692 */
4693 void
4694 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
4695 uint8_t *buff,
4696 uint32_t size)
4697 {
4698 uint32_t offset = 0, rec_length;
4699 uint8_t *rec_ptr;
4700
4701 /*
4702 * If data size is less than 2 words signature and version cannot be
4703 * verified.
4704 */
4705 if (size < 2*sizeof(uint32_t))
4706 return;
4707
4708 /* Check the region signature first */
4709 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
4710 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4711 "2567 Config region 23 has bad signature\n");
4712 return;
4713 }
4714
4715 offset += 4;
4716
4717 /* Check the data structure version */
4718 if (buff[offset] != LPFC_REGION23_VERSION) {
4719 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4720 "2568 Config region 23 has bad version\n");
4721 return;
4722 }
4723 offset += 4;
4724
4725 rec_length = buff[offset + 1];
4726
4727 /* Read FCoE param record */
4728 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
4729 size - offset, FCOE_PARAM_TYPE);
4730 if (rec_ptr)
4731 lpfc_read_fcoe_param(phba, rec_ptr);
4732
4733 /* Read FCF connection table */
4734 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
4735 size - offset, FCOE_CONN_TBL_TYPE);
4736 if (rec_ptr)
4737 lpfc_read_fcf_conn_tbl(phba, rec_ptr);
4738
4739 }
Linux kernel - Deliverables
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