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[SCSI] lpfc 8.3.7: Fix NPIV operation errors
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
blob401167de4ff096d33186af30564eabb0468efa95
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->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2264 vport->unreg_vpi_cmpl = VPORT_OK;
2265 mempool_free(pmb, phba->mbox_mem_pool);
2266 /*
2267 * This shost reference might have been taken at the beginning of
2268 * lpfc_vport_delete()
2269 */
2270 if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
2271 scsi_host_put(shost);
2272 }
2273
2274 int
2275 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
2276 {
2277 struct lpfc_hba *phba = vport->phba;
2278 LPFC_MBOXQ_t *mbox;
2279 int rc;
2280
2281 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2282 if (!mbox)
2283 return 1;
2284
2285 lpfc_unreg_vpi(phba, vport->vpi, mbox);
2286 mbox->vport = vport;
2287 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
2288 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2289 if (rc == MBX_NOT_FINISHED) {
2290 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
2291 "1800 Could not issue unreg_vpi\n");
2292 mempool_free(mbox, phba->mbox_mem_pool);
2293 vport->unreg_vpi_cmpl = VPORT_ERROR;
2294 return rc;
2295 }
2296 return 0;
2297 }
2298
2299 static void
2300 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2301 {
2302 struct lpfc_vport *vport = pmb->vport;
2303 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2304 MAILBOX_t *mb = &pmb->u.mb;
2305
2306 switch (mb->mbxStatus) {
2307 case 0x0011:
2308 case 0x9601:
2309 case 0x9602:
2310 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2311 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
2312 mb->mbxStatus);
2313 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2314 spin_lock_irq(shost->host_lock);
2315 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2316 spin_unlock_irq(shost->host_lock);
2317 vport->fc_myDID = 0;
2318 goto out;
2319 }
2320
2321 vport->vpi_state |= LPFC_VPI_REGISTERED;
2322 vport->num_disc_nodes = 0;
2323 /* go thru NPR list and issue ELS PLOGIs */
2324 if (vport->fc_npr_cnt)
2325 lpfc_els_disc_plogi(vport);
2326
2327 if (!vport->num_disc_nodes) {
2328 spin_lock_irq(shost->host_lock);
2329 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2330 spin_unlock_irq(shost->host_lock);
2331 lpfc_can_disctmo(vport);
2332 }
2333 vport->port_state = LPFC_VPORT_READY;
2334
2335 out:
2336 mempool_free(pmb, phba->mbox_mem_pool);
2337 return;
2338 }
2339
2340 /**
2341 * lpfc_create_static_vport - Read HBA config region to create static vports.
2342 * @phba: pointer to lpfc hba data structure.
2343 *
2344 * This routine issue a DUMP mailbox command for config region 22 to get
2345 * the list of static vports to be created. The function create vports
2346 * based on the information returned from the HBA.
2347 **/
2348 void
2349 lpfc_create_static_vport(struct lpfc_hba *phba)
2350 {
2351 LPFC_MBOXQ_t *pmb = NULL;
2352 MAILBOX_t *mb;
2353 struct static_vport_info *vport_info;
2354 int rc = 0, i;
2355 struct fc_vport_identifiers vport_id;
2356 struct fc_vport *new_fc_vport;
2357 struct Scsi_Host *shost;
2358 struct lpfc_vport *vport;
2359 uint16_t offset = 0;
2360 uint8_t *vport_buff;
2361 struct lpfc_dmabuf *mp;
2362 uint32_t byte_count = 0;
2363
2364 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2365 if (!pmb) {
2366 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2367 "0542 lpfc_create_static_vport failed to"
2368 " allocate mailbox memory\n");
2369 return;
2370 }
2371
2372 mb = &pmb->u.mb;
2373
2374 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
2375 if (!vport_info) {
2376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2377 "0543 lpfc_create_static_vport failed to"
2378 " allocate vport_info\n");
2379 mempool_free(pmb, phba->mbox_mem_pool);
2380 return;
2381 }
2382
2383 vport_buff = (uint8_t *) vport_info;
2384 do {
2385 if (lpfc_dump_static_vport(phba, pmb, offset))
2386 goto out;
2387
2388 pmb->vport = phba->pport;
2389 rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO);
2390
2391 if ((rc != MBX_SUCCESS) || mb->mbxStatus) {
2392 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2393 "0544 lpfc_create_static_vport failed to"
2394 " issue dump mailbox command ret 0x%x "
2395 "status 0x%x\n",
2396 rc, mb->mbxStatus);
2397 goto out;
2398 }
2399
2400 if (phba->sli_rev == LPFC_SLI_REV4) {
2401 byte_count = pmb->u.mqe.un.mb_words[5];
2402 mp = (struct lpfc_dmabuf *) pmb->context2;
2403 if (byte_count > sizeof(struct static_vport_info) -
2404 offset)
2405 byte_count = sizeof(struct static_vport_info)
2406 - offset;
2407 memcpy(vport_buff + offset, mp->virt, byte_count);
2408 offset += byte_count;
2409 } else {
2410 if (mb->un.varDmp.word_cnt >
2411 sizeof(struct static_vport_info) - offset)
2412 mb->un.varDmp.word_cnt =
2413 sizeof(struct static_vport_info)
2414 - offset;
2415 byte_count = mb->un.varDmp.word_cnt;
2416 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
2417 vport_buff + offset,
2418 byte_count);
2419
2420 offset += byte_count;
2421 }
2422
2423 } while (byte_count &&
2424 offset < sizeof(struct static_vport_info));
2425
2426
2427 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
2428 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
2429 != VPORT_INFO_REV)) {
2430 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2431 "0545 lpfc_create_static_vport bad"
2432 " information header 0x%x 0x%x\n",
2433 le32_to_cpu(vport_info->signature),
2434 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
2435
2436 goto out;
2437 }
2438
2439 shost = lpfc_shost_from_vport(phba->pport);
2440
2441 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
2442 memset(&vport_id, 0, sizeof(vport_id));
2443 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
2444 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
2445 if (!vport_id.port_name || !vport_id.node_name)
2446 continue;
2447
2448 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
2449 vport_id.vport_type = FC_PORTTYPE_NPIV;
2450 vport_id.disable = false;
2451 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
2452
2453 if (!new_fc_vport) {
2454 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2455 "0546 lpfc_create_static_vport failed to"
2456 " create vport\n");
2457 continue;
2458 }
2459
2460 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
2461 vport->vport_flag |= STATIC_VPORT;
2462 }
2463
2464 out:
2465 kfree(vport_info);
2466 if (rc != MBX_TIMEOUT) {
2467 if (pmb->context2) {
2468 mp = (struct lpfc_dmabuf *) pmb->context2;
2469 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2470 kfree(mp);
2471 }
2472 mempool_free(pmb, phba->mbox_mem_pool);
2473 }
2474
2475 return;
2476 }
2477
2478 /*
2479 * This routine handles processing a Fabric REG_LOGIN mailbox
2480 * command upon completion. It is setup in the LPFC_MBOXQ
2481 * as the completion routine when the command is
2482 * handed off to the SLI layer.
2483 */
2484 void
2485 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2486 {
2487 struct lpfc_vport *vport = pmb->vport;
2488 MAILBOX_t *mb = &pmb->u.mb;
2489 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2490 struct lpfc_nodelist *ndlp;
2491
2492 ndlp = (struct lpfc_nodelist *) pmb->context2;
2493 pmb->context1 = NULL;
2494 pmb->context2 = NULL;
2495 if (mb->mbxStatus) {
2496 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2497 "0258 Register Fabric login error: 0x%x\n",
2498 mb->mbxStatus);
2499 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2500 kfree(mp);
2501 mempool_free(pmb, phba->mbox_mem_pool);
2502
2503 if (phba->fc_topology == TOPOLOGY_LOOP) {
2504 /* FLOGI failed, use loop map to make discovery list */
2505 lpfc_disc_list_loopmap(vport);
2506
2507 /* Start discovery */
2508 lpfc_disc_start(vport);
2509 /* Decrement the reference count to ndlp after the
2510 * reference to the ndlp are done.
2511 */
2512 lpfc_nlp_put(ndlp);
2513 return;
2514 }
2515
2516 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2517 /* Decrement the reference count to ndlp after the reference
2518 * to the ndlp are done.
2519 */
2520 lpfc_nlp_put(ndlp);
2521 return;
2522 }
2523
2524 ndlp->nlp_rpi = mb->un.varWords[0];
2525 ndlp->nlp_flag |= NLP_RPI_VALID;
2526 ndlp->nlp_type |= NLP_FABRIC;
2527 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2528
2529 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
2530 lpfc_start_fdiscs(phba);
2531 lpfc_do_scr_ns_plogi(phba, vport);
2532 }
2533
2534 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2535 kfree(mp);
2536 mempool_free(pmb, phba->mbox_mem_pool);
2537
2538 /* Drop the reference count from the mbox at the end after
2539 * all the current reference to the ndlp have been done.
2540 */
2541 lpfc_nlp_put(ndlp);
2542 return;
2543 }
2544
2545 /*
2546 * This routine handles processing a NameServer REG_LOGIN mailbox
2547 * command upon completion. It is setup in the LPFC_MBOXQ
2548 * as the completion routine when the command is
2549 * handed off to the SLI layer.
2550 */
2551 void
2552 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2553 {
2554 MAILBOX_t *mb = &pmb->u.mb;
2555 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2556 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2557 struct lpfc_vport *vport = pmb->vport;
2558
2559 if (mb->mbxStatus) {
2560 out:
2561 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2562 "0260 Register NameServer error: 0x%x\n",
2563 mb->mbxStatus);
2564 /* decrement the node reference count held for this
2565 * callback function.
2566 */
2567 lpfc_nlp_put(ndlp);
2568 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2569 kfree(mp);
2570 mempool_free(pmb, phba->mbox_mem_pool);
2571
2572 /* If no other thread is using the ndlp, free it */
2573 lpfc_nlp_not_used(ndlp);
2574
2575 if (phba->fc_topology == TOPOLOGY_LOOP) {
2576 /*
2577 * RegLogin failed, use loop map to make discovery
2578 * list
2579 */
2580 lpfc_disc_list_loopmap(vport);
2581
2582 /* Start discovery */
2583 lpfc_disc_start(vport);
2584 return;
2585 }
2586 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2587 return;
2588 }
2589
2590 pmb->context1 = NULL;
2591
2592 ndlp->nlp_rpi = mb->un.varWords[0];
2593 ndlp->nlp_flag |= NLP_RPI_VALID;
2594 ndlp->nlp_type |= NLP_FABRIC;
2595 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2596
2597 if (vport->port_state < LPFC_VPORT_READY) {
2598 /* Link up discovery requires Fabric registration. */
2599 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
2600 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
2601 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
2602 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
2603 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
2604
2605 /* Issue SCR just before NameServer GID_FT Query */
2606 lpfc_issue_els_scr(vport, SCR_DID, 0);
2607 }
2608
2609 vport->fc_ns_retry = 0;
2610 /* Good status, issue CT Request to NameServer */
2611 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
2612 /* Cannot issue NameServer Query, so finish up discovery */
2613 goto out;
2614 }
2615
2616 /* decrement the node reference count held for this
2617 * callback function.
2618 */
2619 lpfc_nlp_put(ndlp);
2620 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2621 kfree(mp);
2622 mempool_free(pmb, phba->mbox_mem_pool);
2623
2624 return;
2625 }
2626
2627 static void
2628 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2629 {
2630 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2631 struct fc_rport *rport;
2632 struct lpfc_rport_data *rdata;
2633 struct fc_rport_identifiers rport_ids;
2634 struct lpfc_hba *phba = vport->phba;
2635
2636 /* Remote port has reappeared. Re-register w/ FC transport */
2637 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
2638 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
2639 rport_ids.port_id = ndlp->nlp_DID;
2640 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2641
2642 /*
2643 * We leave our node pointer in rport->dd_data when we unregister a
2644 * FCP target port. But fc_remote_port_add zeros the space to which
2645 * rport->dd_data points. So, if we're reusing a previously
2646 * registered port, drop the reference that we took the last time we
2647 * registered the port.
2648 */
2649 if (ndlp->rport && ndlp->rport->dd_data &&
2650 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
2651 lpfc_nlp_put(ndlp);
2652
2653 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
2654 "rport add: did:x%x flg:x%x type x%x",
2655 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
2656
2657 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
2658 if (!rport || !get_device(&rport->dev)) {
2659 dev_printk(KERN_WARNING, &phba->pcidev->dev,
2660 "Warning: fc_remote_port_add failed\n");
2661 return;
2662 }
2663
2664 /* initialize static port data */
2665 rport->maxframe_size = ndlp->nlp_maxframe;
2666 rport->supported_classes = ndlp->nlp_class_sup;
2667 rdata = rport->dd_data;
2668 rdata->pnode = lpfc_nlp_get(ndlp);
2669
2670 if (ndlp->nlp_type & NLP_FCP_TARGET)
2671 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2672 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
2673 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2674
2675
2676 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
2677 fc_remote_port_rolechg(rport, rport_ids.roles);
2678
2679 if ((rport->scsi_target_id != -1) &&
2680 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
2681 ndlp->nlp_sid = rport->scsi_target_id;
2682 }
2683 return;
2684 }
2685
2686 static void
2687 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
2688 {
2689 struct fc_rport *rport = ndlp->rport;
2690
2691 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
2692 "rport delete: did:x%x flg:x%x type x%x",
2693 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
2694
2695 fc_remote_port_delete(rport);
2696
2697 return;
2698 }
2699
2700 static void
2701 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
2702 {
2703 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2704
2705 spin_lock_irq(shost->host_lock);
2706 switch (state) {
2707 case NLP_STE_UNUSED_NODE:
2708 vport->fc_unused_cnt += count;
2709 break;
2710 case NLP_STE_PLOGI_ISSUE:
2711 vport->fc_plogi_cnt += count;
2712 break;
2713 case NLP_STE_ADISC_ISSUE:
2714 vport->fc_adisc_cnt += count;
2715 break;
2716 case NLP_STE_REG_LOGIN_ISSUE:
2717 vport->fc_reglogin_cnt += count;
2718 break;
2719 case NLP_STE_PRLI_ISSUE:
2720 vport->fc_prli_cnt += count;
2721 break;
2722 case NLP_STE_UNMAPPED_NODE:
2723 vport->fc_unmap_cnt += count;
2724 break;
2725 case NLP_STE_MAPPED_NODE:
2726 vport->fc_map_cnt += count;
2727 break;
2728 case NLP_STE_NPR_NODE:
2729 vport->fc_npr_cnt += count;
2730 break;
2731 }
2732 spin_unlock_irq(shost->host_lock);
2733 }
2734
2735 static void
2736 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2737 int old_state, int new_state)
2738 {
2739 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2740
2741 if (new_state == NLP_STE_UNMAPPED_NODE) {
2742 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
2743 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
2744 ndlp->nlp_type |= NLP_FC_NODE;
2745 }
2746 if (new_state == NLP_STE_MAPPED_NODE)
2747 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
2748 if (new_state == NLP_STE_NPR_NODE)
2749 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
2750
2751 /* Transport interface */
2752 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
2753 old_state == NLP_STE_UNMAPPED_NODE)) {
2754 vport->phba->nport_event_cnt++;
2755 lpfc_unregister_remote_port(ndlp);
2756 }
2757
2758 if (new_state == NLP_STE_MAPPED_NODE ||
2759 new_state == NLP_STE_UNMAPPED_NODE) {
2760 vport->phba->nport_event_cnt++;
2761 /*
2762 * Tell the fc transport about the port, if we haven't
2763 * already. If we have, and it's a scsi entity, be
2764 * sure to unblock any attached scsi devices
2765 */
2766 lpfc_register_remote_port(vport, ndlp);
2767 }
2768 if ((new_state == NLP_STE_MAPPED_NODE) &&
2769 (vport->stat_data_enabled)) {
2770 /*
2771 * A new target is discovered, if there is no buffer for
2772 * statistical data collection allocate buffer.
2773 */
2774 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
2775 sizeof(struct lpfc_scsicmd_bkt),
2776 GFP_KERNEL);
2777
2778 if (!ndlp->lat_data)
2779 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
2780 "0286 lpfc_nlp_state_cleanup failed to "
2781 "allocate statistical data buffer DID "
2782 "0x%x\n", ndlp->nlp_DID);
2783 }
2784 /*
2785 * if we added to Mapped list, but the remote port
2786 * registration failed or assigned a target id outside
2787 * our presentable range - move the node to the
2788 * Unmapped List
2789 */
2790 if (new_state == NLP_STE_MAPPED_NODE &&
2791 (!ndlp->rport ||
2792 ndlp->rport->scsi_target_id == -1 ||
2793 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
2794 spin_lock_irq(shost->host_lock);
2795 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
2796 spin_unlock_irq(shost->host_lock);
2797 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2798 }
2799 }
2800
2801 static char *
2802 lpfc_nlp_state_name(char *buffer, size_t size, int state)
2803 {
2804 static char *states[] = {
2805 [NLP_STE_UNUSED_NODE] = "UNUSED",
2806 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
2807 [NLP_STE_ADISC_ISSUE] = "ADISC",
2808 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
2809 [NLP_STE_PRLI_ISSUE] = "PRLI",
2810 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
2811 [NLP_STE_MAPPED_NODE] = "MAPPED",
2812 [NLP_STE_NPR_NODE] = "NPR",
2813 };
2814
2815 if (state < NLP_STE_MAX_STATE && states[state])
2816 strlcpy(buffer, states[state], size);
2817 else
2818 snprintf(buffer, size, "unknown (%d)", state);
2819 return buffer;
2820 }
2821
2822 void
2823 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2824 int state)
2825 {
2826 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2827 int old_state = ndlp->nlp_state;
2828 char name1[16], name2[16];
2829
2830 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2831 "0904 NPort state transition x%06x, %s -> %s\n",
2832 ndlp->nlp_DID,
2833 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
2834 lpfc_nlp_state_name(name2, sizeof(name2), state));
2835
2836 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2837 "node statechg did:x%x old:%d ste:%d",
2838 ndlp->nlp_DID, old_state, state);
2839
2840 if (old_state == NLP_STE_NPR_NODE &&
2841 state != NLP_STE_NPR_NODE)
2842 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2843 if (old_state == NLP_STE_UNMAPPED_NODE) {
2844 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
2845 ndlp->nlp_type &= ~NLP_FC_NODE;
2846 }
2847
2848 if (list_empty(&ndlp->nlp_listp)) {
2849 spin_lock_irq(shost->host_lock);
2850 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
2851 spin_unlock_irq(shost->host_lock);
2852 } else if (old_state)
2853 lpfc_nlp_counters(vport, old_state, -1);
2854
2855 ndlp->nlp_state = state;
2856 lpfc_nlp_counters(vport, state, 1);
2857 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
2858 }
2859
2860 void
2861 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2862 {
2863 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2864
2865 if (list_empty(&ndlp->nlp_listp)) {
2866 spin_lock_irq(shost->host_lock);
2867 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
2868 spin_unlock_irq(shost->host_lock);
2869 }
2870 }
2871
2872 void
2873 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2874 {
2875 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2876
2877 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2878 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2879 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
2880 spin_lock_irq(shost->host_lock);
2881 list_del_init(&ndlp->nlp_listp);
2882 spin_unlock_irq(shost->host_lock);
2883 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
2884 NLP_STE_UNUSED_NODE);
2885 }
2886
2887 static void
2888 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2889 {
2890 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2891 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2892 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
2893 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
2894 NLP_STE_UNUSED_NODE);
2895 }
2896 /**
2897 * lpfc_initialize_node - Initialize all fields of node object
2898 * @vport: Pointer to Virtual Port object.
2899 * @ndlp: Pointer to FC node object.
2900 * @did: FC_ID of the node.
2901 *
2902 * This function is always called when node object need to be initialized.
2903 * It initializes all the fields of the node object. Although the reference
2904 * to phba from @ndlp can be obtained indirectly through it's reference to
2905 * @vport, a direct reference to phba is taken here by @ndlp. This is due
2906 * to the life-span of the @ndlp might go beyond the existence of @vport as
2907 * the final release of ndlp is determined by its reference count. And, the
2908 * operation on @ndlp needs the reference to phba.
2909 **/
2910 static inline void
2911 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2912 uint32_t did)
2913 {
2914 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2915 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
2916 init_timer(&ndlp->nlp_delayfunc);
2917 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2918 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2919 ndlp->nlp_DID = did;
2920 ndlp->vport = vport;
2921 ndlp->phba = vport->phba;
2922 ndlp->nlp_sid = NLP_NO_SID;
2923 kref_init(&ndlp->kref);
2924 NLP_INT_NODE_ACT(ndlp);
2925 atomic_set(&ndlp->cmd_pending, 0);
2926 ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH;
2927 }
2928
2929 struct lpfc_nodelist *
2930 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2931 int state)
2932 {
2933 struct lpfc_hba *phba = vport->phba;
2934 uint32_t did;
2935 unsigned long flags;
2936
2937 if (!ndlp)
2938 return NULL;
2939
2940 spin_lock_irqsave(&phba->ndlp_lock, flags);
2941 /* The ndlp should not be in memory free mode */
2942 if (NLP_CHK_FREE_REQ(ndlp)) {
2943 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2944 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2945 "0277 lpfc_enable_node: ndlp:x%p "
2946 "usgmap:x%x refcnt:%d\n",
2947 (void *)ndlp, ndlp->nlp_usg_map,
2948 atomic_read(&ndlp->kref.refcount));
2949 return NULL;
2950 }
2951 /* The ndlp should not already be in active mode */
2952 if (NLP_CHK_NODE_ACT(ndlp)) {
2953 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2954 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2955 "0278 lpfc_enable_node: ndlp:x%p "
2956 "usgmap:x%x refcnt:%d\n",
2957 (void *)ndlp, ndlp->nlp_usg_map,
2958 atomic_read(&ndlp->kref.refcount));
2959 return NULL;
2960 }
2961
2962 /* Keep the original DID */
2963 did = ndlp->nlp_DID;
2964
2965 /* re-initialize ndlp except of ndlp linked list pointer */
2966 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
2967 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
2968 lpfc_initialize_node(vport, ndlp, did);
2969
2970 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2971
2972 if (state != NLP_STE_UNUSED_NODE)
2973 lpfc_nlp_set_state(vport, ndlp, state);
2974
2975 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2976 "node enable: did:x%x",
2977 ndlp->nlp_DID, 0, 0);
2978 return ndlp;
2979 }
2980
2981 void
2982 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2983 {
2984 /*
2985 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
2986 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
2987 * the ndlp from the vport. The ndlp marked as UNUSED on the list
2988 * until ALL other outstanding threads have completed. We check
2989 * that the ndlp not already in the UNUSED state before we proceed.
2990 */
2991 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2992 return;
2993 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
2994 lpfc_nlp_put(ndlp);
2995 return;
2996 }
2997
2998 /*
2999 * Start / ReStart rescue timer for Discovery / RSCN handling
3000 */
3001 void
3002 lpfc_set_disctmo(struct lpfc_vport *vport)
3003 {
3004 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3005 struct lpfc_hba *phba = vport->phba;
3006 uint32_t tmo;
3007
3008 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
3009 /* For FAN, timeout should be greater than edtov */
3010 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
3011 } else {
3012 /* Normal discovery timeout should be > than ELS/CT timeout
3013 * FC spec states we need 3 * ratov for CT requests
3014 */
3015 tmo = ((phba->fc_ratov * 3) + 3);
3016 }
3017
3018
3019 if (!timer_pending(&vport->fc_disctmo)) {
3020 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3021 "set disc timer: tmo:x%x state:x%x flg:x%x",
3022 tmo, vport->port_state, vport->fc_flag);
3023 }
3024
3025 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
3026 spin_lock_irq(shost->host_lock);
3027 vport->fc_flag |= FC_DISC_TMO;
3028 spin_unlock_irq(shost->host_lock);
3029
3030 /* Start Discovery Timer state <hba_state> */
3031 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3032 "0247 Start Discovery Timer state x%x "
3033 "Data: x%x x%lx x%x x%x\n",
3034 vport->port_state, tmo,
3035 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
3036 vport->fc_adisc_cnt);
3037
3038 return;
3039 }
3040
3041 /*
3042 * Cancel rescue timer for Discovery / RSCN handling
3043 */
3044 int
3045 lpfc_can_disctmo(struct lpfc_vport *vport)
3046 {
3047 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3048 unsigned long iflags;
3049
3050 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3051 "can disc timer: state:x%x rtry:x%x flg:x%x",
3052 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
3053
3054 /* Turn off discovery timer if its running */
3055 if (vport->fc_flag & FC_DISC_TMO) {
3056 spin_lock_irqsave(shost->host_lock, iflags);
3057 vport->fc_flag &= ~FC_DISC_TMO;
3058 spin_unlock_irqrestore(shost->host_lock, iflags);
3059 del_timer_sync(&vport->fc_disctmo);
3060 spin_lock_irqsave(&vport->work_port_lock, iflags);
3061 vport->work_port_events &= ~WORKER_DISC_TMO;
3062 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
3063 }
3064
3065 /* Cancel Discovery Timer state <hba_state> */
3066 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3067 "0248 Cancel Discovery Timer state x%x "
3068 "Data: x%x x%x x%x\n",
3069 vport->port_state, vport->fc_flag,
3070 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
3071 return 0;
3072 }
3073
3074 /*
3075 * Check specified ring for outstanding IOCB on the SLI queue
3076 * Return true if iocb matches the specified nport
3077 */
3078 int
3079 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
3080 struct lpfc_sli_ring *pring,
3081 struct lpfc_iocbq *iocb,
3082 struct lpfc_nodelist *ndlp)
3083 {
3084 struct lpfc_sli *psli = &phba->sli;
3085 IOCB_t *icmd = &iocb->iocb;
3086 struct lpfc_vport *vport = ndlp->vport;
3087
3088 if (iocb->vport != vport)
3089 return 0;
3090
3091 if (pring->ringno == LPFC_ELS_RING) {
3092 switch (icmd->ulpCommand) {
3093 case CMD_GEN_REQUEST64_CR:
3094 if (iocb->context_un.ndlp == ndlp)
3095 return 1;
3096 case CMD_ELS_REQUEST64_CR:
3097 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
3098 return 1;
3099 case CMD_XMIT_ELS_RSP64_CX:
3100 if (iocb->context1 == (uint8_t *) ndlp)
3101 return 1;
3102 }
3103 } else if (pring->ringno == psli->extra_ring) {
3104
3105 } else if (pring->ringno == psli->fcp_ring) {
3106 /* Skip match check if waiting to relogin to FCP target */
3107 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
3108 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
3109 return 0;
3110 }
3111 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
3112 return 1;
3113 }
3114 } else if (pring->ringno == psli->next_ring) {
3115
3116 }
3117 return 0;
3118 }
3119
3120 /*
3121 * Free resources / clean up outstanding I/Os
3122 * associated with nlp_rpi in the LPFC_NODELIST entry.
3123 */
3124 static int
3125 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
3126 {
3127 LIST_HEAD(completions);
3128 struct lpfc_sli *psli;
3129 struct lpfc_sli_ring *pring;
3130 struct lpfc_iocbq *iocb, *next_iocb;
3131 uint32_t i;
3132
3133 lpfc_fabric_abort_nport(ndlp);
3134
3135 /*
3136 * Everything that matches on txcmplq will be returned
3137 * by firmware with a no rpi error.
3138 */
3139 psli = &phba->sli;
3140 if (ndlp->nlp_flag & NLP_RPI_VALID) {
3141 /* Now process each ring */
3142 for (i = 0; i < psli->num_rings; i++) {
3143 pring = &psli->ring[i];
3144
3145 spin_lock_irq(&phba->hbalock);
3146 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
3147 list) {
3148 /*
3149 * Check to see if iocb matches the nport we are
3150 * looking for
3151 */
3152 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
3153 ndlp))) {
3154 /* It matches, so deque and call compl
3155 with an error */
3156 list_move_tail(&iocb->list,
3157 &completions);
3158 pring->txq_cnt--;
3159 }
3160 }
3161 spin_unlock_irq(&phba->hbalock);
3162 }
3163 }
3164
3165 /* Cancel all the IOCBs from the completions list */
3166 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3167 IOERR_SLI_ABORTED);
3168
3169 return 0;
3170 }
3171
3172 /*
3173 * Free rpi associated with LPFC_NODELIST entry.
3174 * This routine is called from lpfc_freenode(), when we are removing
3175 * a LPFC_NODELIST entry. It is also called if the driver initiates a
3176 * LOGO that completes successfully, and we are waiting to PLOGI back
3177 * to the remote NPort. In addition, it is called after we receive
3178 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
3179 * we are waiting to PLOGI back to the remote NPort.
3180 */
3181 int
3182 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3183 {
3184 struct lpfc_hba *phba = vport->phba;
3185 LPFC_MBOXQ_t *mbox;
3186 int rc;
3187
3188 if (ndlp->nlp_flag & NLP_RPI_VALID) {
3189 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3190 if (mbox) {
3191 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
3192 mbox->vport = vport;
3193 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3194 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3195 if (rc == MBX_NOT_FINISHED)
3196 mempool_free(mbox, phba->mbox_mem_pool);
3197 }
3198 lpfc_no_rpi(phba, ndlp);
3199 ndlp->nlp_rpi = 0;
3200 ndlp->nlp_flag &= ~NLP_RPI_VALID;
3201 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3202 return 1;
3203 }
3204 return 0;
3205 }
3206
3207 void
3208 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
3209 {
3210 struct lpfc_hba *phba = vport->phba;
3211 LPFC_MBOXQ_t *mbox;
3212 int rc;
3213
3214 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3215 if (mbox) {
3216 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
3217 mbox->vport = vport;
3218 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3219 mbox->context1 = NULL;
3220 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
3221 if (rc != MBX_TIMEOUT)
3222 mempool_free(mbox, phba->mbox_mem_pool);
3223
3224 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
3225 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3226 "1836 Could not issue "
3227 "unreg_login(all_rpis) status %d\n", rc);
3228 }
3229 }
3230
3231 void
3232 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
3233 {
3234 struct lpfc_hba *phba = vport->phba;
3235 LPFC_MBOXQ_t *mbox;
3236 int rc;
3237
3238 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3239 if (mbox) {
3240 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
3241 mbox->vport = vport;
3242 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3243 mbox->context1 = NULL;
3244 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
3245 if (rc != MBX_TIMEOUT)
3246 mempool_free(mbox, phba->mbox_mem_pool);
3247
3248 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
3249 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3250 "1815 Could not issue "
3251 "unreg_did (default rpis) status %d\n",
3252 rc);
3253 }
3254 }
3255
3256 /*
3257 * Free resources associated with LPFC_NODELIST entry
3258 * so it can be freed.
3259 */
3260 static int
3261 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3262 {
3263 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3264 struct lpfc_hba *phba = vport->phba;
3265 LPFC_MBOXQ_t *mb, *nextmb;
3266 struct lpfc_dmabuf *mp;
3267
3268 /* Cleanup node for NPort <nlp_DID> */
3269 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3270 "0900 Cleanup node for NPort x%x "
3271 "Data: x%x x%x x%x\n",
3272 ndlp->nlp_DID, ndlp->nlp_flag,
3273 ndlp->nlp_state, ndlp->nlp_rpi);
3274 if (NLP_CHK_FREE_REQ(ndlp)) {
3275 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3276 "0280 lpfc_cleanup_node: ndlp:x%p "
3277 "usgmap:x%x refcnt:%d\n",
3278 (void *)ndlp, ndlp->nlp_usg_map,
3279 atomic_read(&ndlp->kref.refcount));
3280 lpfc_dequeue_node(vport, ndlp);
3281 } else {
3282 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3283 "0281 lpfc_cleanup_node: ndlp:x%p "
3284 "usgmap:x%x refcnt:%d\n",
3285 (void *)ndlp, ndlp->nlp_usg_map,
3286 atomic_read(&ndlp->kref.refcount));
3287 lpfc_disable_node(vport, ndlp);
3288 }
3289
3290 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
3291 if ((mb = phba->sli.mbox_active)) {
3292 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
3293 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
3294 mb->context2 = NULL;
3295 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3296 }
3297 }
3298
3299 spin_lock_irq(&phba->hbalock);
3300 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
3301 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
3302 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
3303 mp = (struct lpfc_dmabuf *) (mb->context1);
3304 if (mp) {
3305 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
3306 kfree(mp);
3307 }
3308 list_del(&mb->list);
3309 mempool_free(mb, phba->mbox_mem_pool);
3310 /* We shall not invoke the lpfc_nlp_put to decrement
3311 * the ndlp reference count as we are in the process
3312 * of lpfc_nlp_release.
3313 */
3314 }
3315 }
3316 spin_unlock_irq(&phba->hbalock);
3317
3318 lpfc_els_abort(phba, ndlp);
3319
3320 spin_lock_irq(shost->host_lock);
3321 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
3322 spin_unlock_irq(shost->host_lock);
3323
3324 ndlp->nlp_last_elscmd = 0;
3325 del_timer_sync(&ndlp->nlp_delayfunc);
3326
3327 list_del_init(&ndlp->els_retry_evt.evt_listp);
3328 list_del_init(&ndlp->dev_loss_evt.evt_listp);
3329
3330 lpfc_unreg_rpi(vport, ndlp);
3331
3332 return 0;
3333 }
3334
3335 /*
3336 * Check to see if we can free the nlp back to the freelist.
3337 * If we are in the middle of using the nlp in the discovery state
3338 * machine, defer the free till we reach the end of the state machine.
3339 */
3340 static void
3341 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3342 {
3343 struct lpfc_hba *phba = vport->phba;
3344 struct lpfc_rport_data *rdata;
3345 LPFC_MBOXQ_t *mbox;
3346 int rc;
3347
3348 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3349 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
3350 !(ndlp->nlp_flag & NLP_RPI_VALID)) {
3351 /* For this case we need to cleanup the default rpi
3352 * allocated by the firmware.
3353 */
3354 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
3355 != NULL) {
3356 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
3357 (uint8_t *) &vport->fc_sparam, mbox, 0);
3358 if (rc) {
3359 mempool_free(mbox, phba->mbox_mem_pool);
3360 }
3361 else {
3362 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
3363 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
3364 mbox->vport = vport;
3365 mbox->context2 = NULL;
3366 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3367 if (rc == MBX_NOT_FINISHED) {
3368 mempool_free(mbox, phba->mbox_mem_pool);
3369 }
3370 }
3371 }
3372 }
3373 lpfc_cleanup_node(vport, ndlp);
3374
3375 /*
3376 * We can get here with a non-NULL ndlp->rport because when we
3377 * unregister a rport we don't break the rport/node linkage. So if we
3378 * do, make sure we don't leaving any dangling pointers behind.
3379 */
3380 if (ndlp->rport) {
3381 rdata = ndlp->rport->dd_data;
3382 rdata->pnode = NULL;
3383 ndlp->rport = NULL;
3384 }
3385 }
3386
3387 static int
3388 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3389 uint32_t did)
3390 {
3391 D_ID mydid, ndlpdid, matchdid;
3392
3393 if (did == Bcast_DID)
3394 return 0;
3395
3396 /* First check for Direct match */
3397 if (ndlp->nlp_DID == did)
3398 return 1;
3399
3400 /* Next check for area/domain identically equals 0 match */
3401 mydid.un.word = vport->fc_myDID;
3402 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
3403 return 0;
3404 }
3405
3406 matchdid.un.word = did;
3407 ndlpdid.un.word = ndlp->nlp_DID;
3408 if (matchdid.un.b.id == ndlpdid.un.b.id) {
3409 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
3410 (mydid.un.b.area == matchdid.un.b.area)) {
3411 if ((ndlpdid.un.b.domain == 0) &&
3412 (ndlpdid.un.b.area == 0)) {
3413 if (ndlpdid.un.b.id)
3414 return 1;
3415 }
3416 return 0;
3417 }
3418
3419 matchdid.un.word = ndlp->nlp_DID;
3420 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
3421 (mydid.un.b.area == ndlpdid.un.b.area)) {
3422 if ((matchdid.un.b.domain == 0) &&
3423 (matchdid.un.b.area == 0)) {
3424 if (matchdid.un.b.id)
3425 return 1;
3426 }
3427 }
3428 }
3429 return 0;
3430 }
3431
3432 /* Search for a nodelist entry */
3433 static struct lpfc_nodelist *
3434 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
3435 {
3436 struct lpfc_nodelist *ndlp;
3437 uint32_t data1;
3438
3439 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
3440 if (lpfc_matchdid(vport, ndlp, did)) {
3441 data1 = (((uint32_t) ndlp->nlp_state << 24) |
3442 ((uint32_t) ndlp->nlp_xri << 16) |
3443 ((uint32_t) ndlp->nlp_type << 8) |
3444 ((uint32_t) ndlp->nlp_rpi & 0xff));
3445 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3446 "0929 FIND node DID "
3447 "Data: x%p x%x x%x x%x\n",
3448 ndlp, ndlp->nlp_DID,
3449 ndlp->nlp_flag, data1);
3450 return ndlp;
3451 }
3452 }
3453
3454 /* FIND node did <did> NOT FOUND */
3455 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3456 "0932 FIND node did x%x NOT FOUND.\n", did);
3457 return NULL;
3458 }
3459
3460 struct lpfc_nodelist *
3461 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
3462 {
3463 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3464 struct lpfc_nodelist *ndlp;
3465
3466 spin_lock_irq(shost->host_lock);
3467 ndlp = __lpfc_findnode_did(vport, did);
3468 spin_unlock_irq(shost->host_lock);
3469 return ndlp;
3470 }
3471
3472 struct lpfc_nodelist *
3473 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
3474 {
3475 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3476 struct lpfc_nodelist *ndlp;
3477
3478 ndlp = lpfc_findnode_did(vport, did);
3479 if (!ndlp) {
3480 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
3481 lpfc_rscn_payload_check(vport, did) == 0)
3482 return NULL;
3483 ndlp = (struct lpfc_nodelist *)
3484 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
3485 if (!ndlp)
3486 return NULL;
3487 lpfc_nlp_init(vport, ndlp, did);
3488 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
3489 spin_lock_irq(shost->host_lock);
3490 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3491 spin_unlock_irq(shost->host_lock);
3492 return ndlp;
3493 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3494 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
3495 if (!ndlp)
3496 return NULL;
3497 spin_lock_irq(shost->host_lock);
3498 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3499 spin_unlock_irq(shost->host_lock);
3500 return ndlp;
3501 }
3502
3503 if ((vport->fc_flag & FC_RSCN_MODE) &&
3504 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
3505 if (lpfc_rscn_payload_check(vport, did)) {
3506 /* If we've already recieved a PLOGI from this NPort
3507 * we don't need to try to discover it again.
3508 */
3509 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
3510 return NULL;
3511
3512 /* Since this node is marked for discovery,
3513 * delay timeout is not needed.
3514 */
3515 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3516 spin_lock_irq(shost->host_lock);
3517 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3518 spin_unlock_irq(shost->host_lock);
3519 } else
3520 ndlp = NULL;
3521 } else {
3522 /* If we've already recieved a PLOGI from this NPort,
3523 * or we are already in the process of discovery on it,
3524 * we don't need to try to discover it again.
3525 */
3526 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
3527 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
3528 ndlp->nlp_flag & NLP_RCV_PLOGI)
3529 return NULL;
3530 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
3531 spin_lock_irq(shost->host_lock);
3532 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3533 spin_unlock_irq(shost->host_lock);
3534 }
3535 return ndlp;
3536 }
3537
3538 /* Build a list of nodes to discover based on the loopmap */
3539 void
3540 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
3541 {
3542 struct lpfc_hba *phba = vport->phba;
3543 int j;
3544 uint32_t alpa, index;
3545
3546 if (!lpfc_is_link_up(phba))
3547 return;
3548
3549 if (phba->fc_topology != TOPOLOGY_LOOP)
3550 return;
3551
3552 /* Check for loop map present or not */
3553 if (phba->alpa_map[0]) {
3554 for (j = 1; j <= phba->alpa_map[0]; j++) {
3555 alpa = phba->alpa_map[j];
3556 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
3557 continue;
3558 lpfc_setup_disc_node(vport, alpa);
3559 }
3560 } else {
3561 /* No alpamap, so try all alpa's */
3562 for (j = 0; j < FC_MAXLOOP; j++) {
3563 /* If cfg_scan_down is set, start from highest
3564 * ALPA (0xef) to lowest (0x1).
3565 */
3566 if (vport->cfg_scan_down)
3567 index = j;
3568 else
3569 index = FC_MAXLOOP - j - 1;
3570 alpa = lpfcAlpaArray[index];
3571 if ((vport->fc_myDID & 0xff) == alpa)
3572 continue;
3573 lpfc_setup_disc_node(vport, alpa);
3574 }
3575 }
3576 return;
3577 }
3578
3579 void
3580 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
3581 {
3582 LPFC_MBOXQ_t *mbox;
3583 struct lpfc_sli *psli = &phba->sli;
3584 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
3585 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
3586 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
3587 int rc;
3588
3589 /*
3590 * if it's not a physical port or if we already send
3591 * clear_la then don't send it.
3592 */
3593 if ((phba->link_state >= LPFC_CLEAR_LA) ||
3594 (vport->port_type != LPFC_PHYSICAL_PORT) ||
3595 (phba->sli_rev == LPFC_SLI_REV4))
3596 return;
3597
3598 /* Link up discovery */
3599 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
3600 phba->link_state = LPFC_CLEAR_LA;
3601 lpfc_clear_la(phba, mbox);
3602 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
3603 mbox->vport = vport;
3604 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3605 if (rc == MBX_NOT_FINISHED) {
3606 mempool_free(mbox, phba->mbox_mem_pool);
3607 lpfc_disc_flush_list(vport);
3608 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
3609 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
3610 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
3611 phba->link_state = LPFC_HBA_ERROR;
3612 }
3613 }
3614 }
3615
3616 /* Reg_vpi to tell firmware to resume normal operations */
3617 void
3618 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
3619 {
3620 LPFC_MBOXQ_t *regvpimbox;
3621
3622 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3623 if (regvpimbox) {
3624 lpfc_reg_vpi(vport, regvpimbox);
3625 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
3626 regvpimbox->vport = vport;
3627 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
3628 == MBX_NOT_FINISHED) {
3629 mempool_free(regvpimbox, phba->mbox_mem_pool);
3630 }
3631 }
3632 }
3633
3634 /* Start Link up / RSCN discovery on NPR nodes */
3635 void
3636 lpfc_disc_start(struct lpfc_vport *vport)
3637 {
3638 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3639 struct lpfc_hba *phba = vport->phba;
3640 uint32_t num_sent;
3641 uint32_t clear_la_pending;
3642 int did_changed;
3643
3644 if (!lpfc_is_link_up(phba))
3645 return;
3646
3647 if (phba->link_state == LPFC_CLEAR_LA)
3648 clear_la_pending = 1;
3649 else
3650 clear_la_pending = 0;
3651
3652 if (vport->port_state < LPFC_VPORT_READY)
3653 vport->port_state = LPFC_DISC_AUTH;
3654
3655 lpfc_set_disctmo(vport);
3656
3657 if (vport->fc_prevDID == vport->fc_myDID)
3658 did_changed = 0;
3659 else
3660 did_changed = 1;
3661
3662 vport->fc_prevDID = vport->fc_myDID;
3663 vport->num_disc_nodes = 0;
3664
3665 /* Start Discovery state <hba_state> */
3666 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3667 "0202 Start Discovery hba state x%x "
3668 "Data: x%x x%x x%x\n",
3669 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
3670 vport->fc_adisc_cnt);
3671
3672 /* First do ADISCs - if any */
3673 num_sent = lpfc_els_disc_adisc(vport);
3674
3675 if (num_sent)
3676 return;
3677
3678 /*
3679 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
3680 * continue discovery.
3681 */
3682 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3683 !(vport->fc_flag & FC_PT2PT) &&
3684 !(vport->fc_flag & FC_RSCN_MODE) &&
3685 (phba->sli_rev < LPFC_SLI_REV4)) {
3686 lpfc_issue_reg_vpi(phba, vport);
3687 return;
3688 }
3689
3690 /*
3691 * For SLI2, we need to set port_state to READY and continue
3692 * discovery.
3693 */
3694 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
3695 /* If we get here, there is nothing to ADISC */
3696 if (vport->port_type == LPFC_PHYSICAL_PORT)
3697 lpfc_issue_clear_la(phba, vport);
3698
3699 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
3700 vport->num_disc_nodes = 0;
3701 /* go thru NPR nodes and issue ELS PLOGIs */
3702 if (vport->fc_npr_cnt)
3703 lpfc_els_disc_plogi(vport);
3704
3705 if (!vport->num_disc_nodes) {
3706 spin_lock_irq(shost->host_lock);
3707 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3708 spin_unlock_irq(shost->host_lock);
3709 lpfc_can_disctmo(vport);
3710 }
3711 }
3712 vport->port_state = LPFC_VPORT_READY;
3713 } else {
3714 /* Next do PLOGIs - if any */
3715 num_sent = lpfc_els_disc_plogi(vport);
3716
3717 if (num_sent)
3718 return;
3719
3720 if (vport->fc_flag & FC_RSCN_MODE) {
3721 /* Check to see if more RSCNs came in while we
3722 * were processing this one.
3723 */
3724 if ((vport->fc_rscn_id_cnt == 0) &&
3725 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
3726 spin_lock_irq(shost->host_lock);
3727 vport->fc_flag &= ~FC_RSCN_MODE;
3728 spin_unlock_irq(shost->host_lock);
3729 lpfc_can_disctmo(vport);
3730 } else
3731 lpfc_els_handle_rscn(vport);
3732 }
3733 }
3734 return;
3735 }
3736
3737 /*
3738 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
3739 * ring the match the sppecified nodelist.
3740 */
3741 static void
3742 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
3743 {
3744 LIST_HEAD(completions);
3745 struct lpfc_sli *psli;
3746 IOCB_t *icmd;
3747 struct lpfc_iocbq *iocb, *next_iocb;
3748 struct lpfc_sli_ring *pring;
3749
3750 psli = &phba->sli;
3751 pring = &psli->ring[LPFC_ELS_RING];
3752
3753 /* Error matching iocb on txq or txcmplq
3754 * First check the txq.
3755 */
3756 spin_lock_irq(&phba->hbalock);
3757 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
3758 if (iocb->context1 != ndlp) {
3759 continue;
3760 }
3761 icmd = &iocb->iocb;
3762 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
3763 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
3764
3765 list_move_tail(&iocb->list, &completions);
3766 pring->txq_cnt--;
3767 }
3768 }
3769
3770 /* Next check the txcmplq */
3771 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
3772 if (iocb->context1 != ndlp) {
3773 continue;
3774 }
3775 icmd = &iocb->iocb;
3776 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
3777 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
3778 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3779 }
3780 }
3781 spin_unlock_irq(&phba->hbalock);
3782
3783 /* Cancel all the IOCBs from the completions list */
3784 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3785 IOERR_SLI_ABORTED);
3786 }
3787
3788 static void
3789 lpfc_disc_flush_list(struct lpfc_vport *vport)
3790 {
3791 struct lpfc_nodelist *ndlp, *next_ndlp;
3792 struct lpfc_hba *phba = vport->phba;
3793
3794 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
3795 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
3796 nlp_listp) {
3797 if (!NLP_CHK_NODE_ACT(ndlp))
3798 continue;
3799 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
3800 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
3801 lpfc_free_tx(phba, ndlp);
3802 }
3803 }
3804 }
3805 }
3806
3807 void
3808 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
3809 {
3810 lpfc_els_flush_rscn(vport);
3811 lpfc_els_flush_cmd(vport);
3812 lpfc_disc_flush_list(vport);
3813 }
3814
3815 /*****************************************************************************/
3816 /*
3817 * NAME: lpfc_disc_timeout
3818 *
3819 * FUNCTION: Fibre Channel driver discovery timeout routine.
3820 *
3821 * EXECUTION ENVIRONMENT: interrupt only
3822 *
3823 * CALLED FROM:
3824 * Timer function
3825 *
3826 * RETURNS:
3827 * none
3828 */
3829 /*****************************************************************************/
3830 void
3831 lpfc_disc_timeout(unsigned long ptr)
3832 {
3833 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
3834 struct lpfc_hba *phba = vport->phba;
3835 uint32_t tmo_posted;
3836 unsigned long flags = 0;
3837
3838 if (unlikely(!phba))
3839 return;
3840
3841 spin_lock_irqsave(&vport->work_port_lock, flags);
3842 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
3843 if (!tmo_posted)
3844 vport->work_port_events |= WORKER_DISC_TMO;
3845 spin_unlock_irqrestore(&vport->work_port_lock, flags);
3846
3847 if (!tmo_posted)
3848 lpfc_worker_wake_up(phba);
3849 return;
3850 }
3851
3852 static void
3853 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
3854 {
3855 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3856 struct lpfc_hba *phba = vport->phba;
3857 struct lpfc_sli *psli = &phba->sli;
3858 struct lpfc_nodelist *ndlp, *next_ndlp;
3859 LPFC_MBOXQ_t *initlinkmbox;
3860 int rc, clrlaerr = 0;
3861
3862 if (!(vport->fc_flag & FC_DISC_TMO))
3863 return;
3864
3865 spin_lock_irq(shost->host_lock);
3866 vport->fc_flag &= ~FC_DISC_TMO;
3867 spin_unlock_irq(shost->host_lock);
3868
3869 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3870 "disc timeout: state:x%x rtry:x%x flg:x%x",
3871 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
3872
3873 switch (vport->port_state) {
3874
3875 case LPFC_LOCAL_CFG_LINK:
3876 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
3877 * FAN
3878 */
3879 /* FAN timeout */
3880 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
3881 "0221 FAN timeout\n");
3882 /* Start discovery by sending FLOGI, clean up old rpis */
3883 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
3884 nlp_listp) {
3885 if (!NLP_CHK_NODE_ACT(ndlp))
3886 continue;
3887 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
3888 continue;
3889 if (ndlp->nlp_type & NLP_FABRIC) {
3890 /* Clean up the ndlp on Fabric connections */
3891 lpfc_drop_node(vport, ndlp);
3892
3893 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
3894 /* Fail outstanding IO now since device
3895 * is marked for PLOGI.
3896 */
3897 lpfc_unreg_rpi(vport, ndlp);
3898 }
3899 }
3900 if (vport->port_state != LPFC_FLOGI) {
3901 lpfc_initial_flogi(vport);
3902 return;
3903 }
3904 break;
3905
3906 case LPFC_FDISC:
3907 case LPFC_FLOGI:
3908 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
3909 /* Initial FLOGI timeout */
3910 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3911 "0222 Initial %s timeout\n",
3912 vport->vpi ? "FDISC" : "FLOGI");
3913
3914 /* Assume no Fabric and go on with discovery.
3915 * Check for outstanding ELS FLOGI to abort.
3916 */
3917
3918 /* FLOGI failed, so just use loop map to make discovery list */
3919 lpfc_disc_list_loopmap(vport);
3920
3921 /* Start discovery */
3922 lpfc_disc_start(vport);
3923 break;
3924
3925 case LPFC_FABRIC_CFG_LINK:
3926 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
3927 NameServer login */
3928 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3929 "0223 Timeout while waiting for "
3930 "NameServer login\n");
3931 /* Next look for NameServer ndlp */
3932 ndlp = lpfc_findnode_did(vport, NameServer_DID);
3933 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
3934 lpfc_els_abort(phba, ndlp);
3935
3936 /* ReStart discovery */
3937 goto restart_disc;
3938
3939 case LPFC_NS_QRY:
3940 /* Check for wait for NameServer Rsp timeout */
3941 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3942 "0224 NameServer Query timeout "
3943 "Data: x%x x%x\n",
3944 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
3945
3946 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
3947 /* Try it one more time */
3948 vport->fc_ns_retry++;
3949 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
3950 vport->fc_ns_retry, 0);
3951 if (rc == 0)
3952 break;
3953 }
3954 vport->fc_ns_retry = 0;
3955
3956 restart_disc:
3957 /*
3958 * Discovery is over.
3959 * set port_state to PORT_READY if SLI2.
3960 * cmpl_reg_vpi will set port_state to READY for SLI3.
3961 */
3962 if (phba->sli_rev < LPFC_SLI_REV4) {
3963 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3964 lpfc_issue_reg_vpi(phba, vport);
3965 else { /* NPIV Not enabled */
3966 lpfc_issue_clear_la(phba, vport);
3967 vport->port_state = LPFC_VPORT_READY;
3968 }
3969 }
3970
3971 /* Setup and issue mailbox INITIALIZE LINK command */
3972 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3973 if (!initlinkmbox) {
3974 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3975 "0206 Device Discovery "
3976 "completion error\n");
3977 phba->link_state = LPFC_HBA_ERROR;
3978 break;
3979 }
3980
3981 lpfc_linkdown(phba);
3982 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
3983 phba->cfg_link_speed);
3984 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
3985 initlinkmbox->vport = vport;
3986 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3987 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
3988 lpfc_set_loopback_flag(phba);
3989 if (rc == MBX_NOT_FINISHED)
3990 mempool_free(initlinkmbox, phba->mbox_mem_pool);
3991
3992 break;
3993
3994 case LPFC_DISC_AUTH:
3995 /* Node Authentication timeout */
3996 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3997 "0227 Node Authentication timeout\n");
3998 lpfc_disc_flush_list(vport);
3999
4000 /*
4001 * set port_state to PORT_READY if SLI2.
4002 * cmpl_reg_vpi will set port_state to READY for SLI3.
4003 */
4004 if (phba->sli_rev < LPFC_SLI_REV4) {
4005 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
4006 lpfc_issue_reg_vpi(phba, vport);
4007 else { /* NPIV Not enabled */
4008 lpfc_issue_clear_la(phba, vport);
4009 vport->port_state = LPFC_VPORT_READY;
4010 }
4011 }
4012 break;
4013
4014 case LPFC_VPORT_READY:
4015 if (vport->fc_flag & FC_RSCN_MODE) {
4016 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4017 "0231 RSCN timeout Data: x%x "
4018 "x%x\n",
4019 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
4020
4021 /* Cleanup any outstanding ELS commands */
4022 lpfc_els_flush_cmd(vport);
4023
4024 lpfc_els_flush_rscn(vport);
4025 lpfc_disc_flush_list(vport);
4026 }
4027 break;
4028
4029 default:
4030 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4031 "0273 Unexpected discovery timeout, "
4032 "vport State x%x\n", vport->port_state);
4033 break;
4034 }
4035
4036 switch (phba->link_state) {
4037 case LPFC_CLEAR_LA:
4038 /* CLEAR LA timeout */
4039 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4040 "0228 CLEAR LA timeout\n");
4041 clrlaerr = 1;
4042 break;
4043
4044 case LPFC_LINK_UP:
4045 lpfc_issue_clear_la(phba, vport);
4046 /* Drop thru */
4047 case LPFC_LINK_UNKNOWN:
4048 case LPFC_WARM_START:
4049 case LPFC_INIT_START:
4050 case LPFC_INIT_MBX_CMDS:
4051 case LPFC_LINK_DOWN:
4052 case LPFC_HBA_ERROR:
4053 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4054 "0230 Unexpected timeout, hba link "
4055 "state x%x\n", phba->link_state);
4056 clrlaerr = 1;
4057 break;
4058
4059 case LPFC_HBA_READY:
4060 break;
4061 }
4062
4063 if (clrlaerr) {
4064 lpfc_disc_flush_list(vport);
4065 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4066 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4067 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4068 vport->port_state = LPFC_VPORT_READY;
4069 }
4070
4071 return;
4072 }
4073
4074 /*
4075 * This routine handles processing a NameServer REG_LOGIN mailbox
4076 * command upon completion. It is setup in the LPFC_MBOXQ
4077 * as the completion routine when the command is
4078 * handed off to the SLI layer.
4079 */
4080 void
4081 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4082 {
4083 MAILBOX_t *mb = &pmb->u.mb;
4084 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
4085 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
4086 struct lpfc_vport *vport = pmb->vport;
4087
4088 pmb->context1 = NULL;
4089
4090 ndlp->nlp_rpi = mb->un.varWords[0];
4091 ndlp->nlp_flag |= NLP_RPI_VALID;
4092 ndlp->nlp_type |= NLP_FABRIC;
4093 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4094
4095 /*
4096 * Start issuing Fabric-Device Management Interface (FDMI) command to
4097 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
4098 * fdmi-on=2 (supporting RPA/hostnmae)
4099 */
4100
4101 if (vport->cfg_fdmi_on == 1)
4102 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
4103 else
4104 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
4105
4106 /* decrement the node reference count held for this callback
4107 * function.
4108 */
4109 lpfc_nlp_put(ndlp);
4110 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4111 kfree(mp);
4112 mempool_free(pmb, phba->mbox_mem_pool);
4113
4114 return;
4115 }
4116
4117 static int
4118 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
4119 {
4120 uint16_t *rpi = param;
4121
4122 return ndlp->nlp_rpi == *rpi;
4123 }
4124
4125 static int
4126 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
4127 {
4128 return memcmp(&ndlp->nlp_portname, param,
4129 sizeof(ndlp->nlp_portname)) == 0;
4130 }
4131
4132 static struct lpfc_nodelist *
4133 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
4134 {
4135 struct lpfc_nodelist *ndlp;
4136
4137 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4138 if (filter(ndlp, param))
4139 return ndlp;
4140 }
4141 return NULL;
4142 }
4143
4144 /*
4145 * This routine looks up the ndlp lists for the given RPI. If rpi found it
4146 * returns the node list element pointer else return NULL.
4147 */
4148 struct lpfc_nodelist *
4149 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
4150 {
4151 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
4152 }
4153
4154 /*
4155 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
4156 * returns the node element list pointer else return NULL.
4157 */
4158 struct lpfc_nodelist *
4159 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
4160 {
4161 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4162 struct lpfc_nodelist *ndlp;
4163
4164 spin_lock_irq(shost->host_lock);
4165 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
4166 spin_unlock_irq(shost->host_lock);
4167 return ndlp;
4168 }
4169
4170 void
4171 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4172 uint32_t did)
4173 {
4174 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
4175
4176 lpfc_initialize_node(vport, ndlp, did);
4177 INIT_LIST_HEAD(&ndlp->nlp_listp);
4178
4179 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4180 "node init: did:x%x",
4181 ndlp->nlp_DID, 0, 0);
4182
4183 return;
4184 }
4185
4186 /* This routine releases all resources associated with a specifc NPort's ndlp
4187 * and mempool_free's the nodelist.
4188 */
4189 static void
4190 lpfc_nlp_release(struct kref *kref)
4191 {
4192 struct lpfc_hba *phba;
4193 unsigned long flags;
4194 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
4195 kref);
4196
4197 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4198 "node release: did:x%x flg:x%x type:x%x",
4199 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4200
4201 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4202 "0279 lpfc_nlp_release: ndlp:x%p "
4203 "usgmap:x%x refcnt:%d\n",
4204 (void *)ndlp, ndlp->nlp_usg_map,
4205 atomic_read(&ndlp->kref.refcount));
4206
4207 /* remove ndlp from action. */
4208 lpfc_nlp_remove(ndlp->vport, ndlp);
4209
4210 /* clear the ndlp active flag for all release cases */
4211 phba = ndlp->phba;
4212 spin_lock_irqsave(&phba->ndlp_lock, flags);
4213 NLP_CLR_NODE_ACT(ndlp);
4214 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4215
4216 /* free ndlp memory for final ndlp release */
4217 if (NLP_CHK_FREE_REQ(ndlp)) {
4218 kfree(ndlp->lat_data);
4219 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
4220 }
4221 }
4222
4223 /* This routine bumps the reference count for a ndlp structure to ensure
4224 * that one discovery thread won't free a ndlp while another discovery thread
4225 * is using it.
4226 */
4227 struct lpfc_nodelist *
4228 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
4229 {
4230 struct lpfc_hba *phba;
4231 unsigned long flags;
4232
4233 if (ndlp) {
4234 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4235 "node get: did:x%x flg:x%x refcnt:x%x",
4236 ndlp->nlp_DID, ndlp->nlp_flag,
4237 atomic_read(&ndlp->kref.refcount));
4238 /* The check of ndlp usage to prevent incrementing the
4239 * ndlp reference count that is in the process of being
4240 * released.
4241 */
4242 phba = ndlp->phba;
4243 spin_lock_irqsave(&phba->ndlp_lock, flags);
4244 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
4245 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4246 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4247 "0276 lpfc_nlp_get: ndlp:x%p "
4248 "usgmap:x%x refcnt:%d\n",
4249 (void *)ndlp, ndlp->nlp_usg_map,
4250 atomic_read(&ndlp->kref.refcount));
4251 return NULL;
4252 } else
4253 kref_get(&ndlp->kref);
4254 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4255 }
4256 return ndlp;
4257 }
4258
4259 /* This routine decrements the reference count for a ndlp structure. If the
4260 * count goes to 0, this indicates the the associated nodelist should be
4261 * freed. Returning 1 indicates the ndlp resource has been released; on the
4262 * other hand, returning 0 indicates the ndlp resource has not been released
4263 * yet.
4264 */
4265 int
4266 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
4267 {
4268 struct lpfc_hba *phba;
4269 unsigned long flags;
4270
4271 if (!ndlp)
4272 return 1;
4273
4274 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4275 "node put: did:x%x flg:x%x refcnt:x%x",
4276 ndlp->nlp_DID, ndlp->nlp_flag,
4277 atomic_read(&ndlp->kref.refcount));
4278 phba = ndlp->phba;
4279 spin_lock_irqsave(&phba->ndlp_lock, flags);
4280 /* Check the ndlp memory free acknowledge flag to avoid the
4281 * possible race condition that kref_put got invoked again
4282 * after previous one has done ndlp memory free.
4283 */
4284 if (NLP_CHK_FREE_ACK(ndlp)) {
4285 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4286 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4287 "0274 lpfc_nlp_put: ndlp:x%p "
4288 "usgmap:x%x refcnt:%d\n",
4289 (void *)ndlp, ndlp->nlp_usg_map,
4290 atomic_read(&ndlp->kref.refcount));
4291 return 1;
4292 }
4293 /* Check the ndlp inactivate log flag to avoid the possible
4294 * race condition that kref_put got invoked again after ndlp
4295 * is already in inactivating state.
4296 */
4297 if (NLP_CHK_IACT_REQ(ndlp)) {
4298 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4299 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4300 "0275 lpfc_nlp_put: ndlp:x%p "
4301 "usgmap:x%x refcnt:%d\n",
4302 (void *)ndlp, ndlp->nlp_usg_map,
4303 atomic_read(&ndlp->kref.refcount));
4304 return 1;
4305 }
4306 /* For last put, mark the ndlp usage flags to make sure no
4307 * other kref_get and kref_put on the same ndlp shall get
4308 * in between the process when the final kref_put has been
4309 * invoked on this ndlp.
4310 */
4311 if (atomic_read(&ndlp->kref.refcount) == 1) {
4312 /* Indicate ndlp is put to inactive state. */
4313 NLP_SET_IACT_REQ(ndlp);
4314 /* Acknowledge ndlp memory free has been seen. */
4315 if (NLP_CHK_FREE_REQ(ndlp))
4316 NLP_SET_FREE_ACK(ndlp);
4317 }
4318 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4319 /* Note, the kref_put returns 1 when decrementing a reference
4320 * count that was 1, it invokes the release callback function,
4321 * but it still left the reference count as 1 (not actually
4322 * performs the last decrementation). Otherwise, it actually
4323 * decrements the reference count and returns 0.
4324 */
4325 return kref_put(&ndlp->kref, lpfc_nlp_release);
4326 }
4327
4328 /* This routine free's the specified nodelist if it is not in use
4329 * by any other discovery thread. This routine returns 1 if the
4330 * ndlp has been freed. A return value of 0 indicates the ndlp is
4331 * not yet been released.
4332 */
4333 int
4334 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
4335 {
4336 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4337 "node not used: did:x%x flg:x%x refcnt:x%x",
4338 ndlp->nlp_DID, ndlp->nlp_flag,
4339 atomic_read(&ndlp->kref.refcount));
4340 if (atomic_read(&ndlp->kref.refcount) == 1)
4341 if (lpfc_nlp_put(ndlp))
4342 return 1;
4343 return 0;
4344 }
4345
4346 /**
4347 * lpfc_fcf_inuse - Check if FCF can be unregistered.
4348 * @phba: Pointer to hba context object.
4349 *
4350 * This function iterate through all FC nodes associated
4351 * will all vports to check if there is any node with
4352 * fc_rports associated with it. If there is an fc_rport
4353 * associated with the node, then the node is either in
4354 * discovered state or its devloss_timer is pending.
4355 */
4356 static int
4357 lpfc_fcf_inuse(struct lpfc_hba *phba)
4358 {
4359 struct lpfc_vport **vports;
4360 int i, ret = 0;
4361 struct lpfc_nodelist *ndlp;
4362 struct Scsi_Host *shost;
4363
4364 vports = lpfc_create_vport_work_array(phba);
4365
4366 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4367 shost = lpfc_shost_from_vport(vports[i]);
4368 spin_lock_irq(shost->host_lock);
4369 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
4370 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
4371 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
4372 ret = 1;
4373 spin_unlock_irq(shost->host_lock);
4374 goto out;
4375 } else {
4376 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
4377 "2624 RPI %x DID %x flg %x still "
4378 "logged in\n",
4379 ndlp->nlp_rpi, ndlp->nlp_DID,
4380 ndlp->nlp_flag);
4381 if (ndlp->nlp_flag & NLP_RPI_VALID)
4382 ret = 1;
4383 }
4384 }
4385 spin_unlock_irq(shost->host_lock);
4386 }
4387 out:
4388 lpfc_destroy_vport_work_array(phba, vports);
4389 return ret;
4390 }
4391
4392 /**
4393 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
4394 * @phba: Pointer to hba context object.
4395 * @mboxq: Pointer to mailbox object.
4396 *
4397 * This function frees memory associated with the mailbox command.
4398 */
4399 static void
4400 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
4401 {
4402 struct lpfc_vport *vport = mboxq->vport;
4403
4404 if (mboxq->u.mb.mbxStatus) {
4405 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4406 "2555 UNREG_VFI mbxStatus error x%x "
4407 "HBA state x%x\n",
4408 mboxq->u.mb.mbxStatus, vport->port_state);
4409 }
4410 mempool_free(mboxq, phba->mbox_mem_pool);
4411 return;
4412 }
4413
4414 /**
4415 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
4416 * @phba: Pointer to hba context object.
4417 * @mboxq: Pointer to mailbox object.
4418 *
4419 * This function frees memory associated with the mailbox command.
4420 */
4421 static void
4422 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
4423 {
4424 struct lpfc_vport *vport = mboxq->vport;
4425
4426 if (mboxq->u.mb.mbxStatus) {
4427 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4428 "2550 UNREG_FCFI mbxStatus error x%x "
4429 "HBA state x%x\n",
4430 mboxq->u.mb.mbxStatus, vport->port_state);
4431 }
4432 mempool_free(mboxq, phba->mbox_mem_pool);
4433 return;
4434 }
4435
4436 /**
4437 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
4438 * @phba: Pointer to hba context object.
4439 *
4440 * This function check if there are any connected remote port for the FCF and
4441 * if all the devices are disconnected, this function unregister FCFI.
4442 * This function also tries to use another FCF for discovery.
4443 */
4444 void
4445 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
4446 {
4447 LPFC_MBOXQ_t *mbox;
4448 int rc;
4449 struct lpfc_vport **vports;
4450 int i;
4451
4452 spin_lock_irq(&phba->hbalock);
4453 /*
4454 * If HBA is not running in FIP mode or
4455 * If HBA does not support FCoE or
4456 * If FCF is not registered.
4457 * do nothing.
4458 */
4459 if (!(phba->hba_flag & HBA_FCOE_SUPPORT) ||
4460 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
4461 (!(phba->hba_flag & HBA_FIP_SUPPORT))) {
4462 spin_unlock_irq(&phba->hbalock);
4463 return;
4464 }
4465 spin_unlock_irq(&phba->hbalock);
4466
4467 if (lpfc_fcf_inuse(phba))
4468 return;
4469
4470 /* At this point, all discovery is aborted */
4471 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4472
4473 /* Unregister VPIs */
4474 vports = lpfc_create_vport_work_array(phba);
4475 if (vports &&
4476 (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
4477 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4478 lpfc_mbx_unreg_vpi(vports[i]);
4479 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
4480 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
4481 }
4482 lpfc_destroy_vport_work_array(phba, vports);
4483
4484 /* Unregister VFI */
4485 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4486 if (!mbox) {
4487 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4488 "2556 UNREG_VFI mbox allocation failed"
4489 "HBA state x%x\n",
4490 phba->pport->port_state);
4491 return;
4492 }
4493
4494 lpfc_unreg_vfi(mbox, phba->pport);
4495 mbox->vport = phba->pport;
4496 mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl;
4497
4498 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4499 if (rc == MBX_NOT_FINISHED) {
4500 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4501 "2557 UNREG_VFI issue mbox failed rc x%x "
4502 "HBA state x%x\n",
4503 rc, phba->pport->port_state);
4504 mempool_free(mbox, phba->mbox_mem_pool);
4505 return;
4506 }
4507
4508 /* Unregister FCF */
4509 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4510 if (!mbox) {
4511 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4512 "2551 UNREG_FCFI mbox allocation failed"
4513 "HBA state x%x\n",
4514 phba->pport->port_state);
4515 return;
4516 }
4517
4518 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
4519 mbox->vport = phba->pport;
4520 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
4521 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4522
4523 if (rc == MBX_NOT_FINISHED) {
4524 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4525 "2552 UNREG_FCFI issue mbox failed rc x%x "
4526 "HBA state x%x\n",
4527 rc, phba->pport->port_state);
4528 mempool_free(mbox, phba->mbox_mem_pool);
4529 return;
4530 }
4531
4532 spin_lock_irq(&phba->hbalock);
4533 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_REGISTERED |
4534 FCF_DISCOVERED | FCF_BOOT_ENABLE | FCF_IN_USE |
4535 FCF_VALID_VLAN);
4536 spin_unlock_irq(&phba->hbalock);
4537
4538 /*
4539 * If driver is not unloading, check if there is any other
4540 * FCF record that can be used for discovery.
4541 */
4542 if ((phba->pport->load_flag & FC_UNLOADING) ||
4543 (phba->link_state < LPFC_LINK_UP))
4544 return;
4545
4546 rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
4547
4548 if (rc)
4549 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4550 "2553 lpfc_unregister_unused_fcf failed to read FCF"
4551 " record HBA state x%x\n",
4552 phba->pport->port_state);
4553 }
4554
4555 /**
4556 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
4557 * @phba: Pointer to hba context object.
4558 * @buff: Buffer containing the FCF connection table as in the config
4559 * region.
4560 * This function create driver data structure for the FCF connection
4561 * record table read from config region 23.
4562 */
4563 static void
4564 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
4565 uint8_t *buff)
4566 {
4567 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4568 struct lpfc_fcf_conn_hdr *conn_hdr;
4569 struct lpfc_fcf_conn_rec *conn_rec;
4570 uint32_t record_count;
4571 int i;
4572
4573 /* Free the current connect table */
4574 list_for_each_entry_safe(conn_entry, next_conn_entry,
4575 &phba->fcf_conn_rec_list, list) {
4576 list_del_init(&conn_entry->list);
4577 kfree(conn_entry);
4578 }
4579
4580 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
4581 record_count = conn_hdr->length * sizeof(uint32_t)/
4582 sizeof(struct lpfc_fcf_conn_rec);
4583
4584 conn_rec = (struct lpfc_fcf_conn_rec *)
4585 (buff + sizeof(struct lpfc_fcf_conn_hdr));
4586
4587 for (i = 0; i < record_count; i++) {
4588 if (!(conn_rec[i].flags & FCFCNCT_VALID))
4589 continue;
4590 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
4591 GFP_KERNEL);
4592 if (!conn_entry) {
4593 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4594 "2566 Failed to allocate connection"
4595 " table entry\n");
4596 return;
4597 }
4598
4599 memcpy(&conn_entry->conn_rec, &conn_rec[i],
4600 sizeof(struct lpfc_fcf_conn_rec));
4601 conn_entry->conn_rec.vlan_tag =
4602 le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF;
4603 conn_entry->conn_rec.flags =
4604 le16_to_cpu(conn_entry->conn_rec.flags);
4605 list_add_tail(&conn_entry->list,
4606 &phba->fcf_conn_rec_list);
4607 }
4608 }
4609
4610 /**
4611 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
4612 * @phba: Pointer to hba context object.
4613 * @buff: Buffer containing the FCoE parameter data structure.
4614 *
4615 * This function update driver data structure with config
4616 * parameters read from config region 23.
4617 */
4618 static void
4619 lpfc_read_fcoe_param(struct lpfc_hba *phba,
4620 uint8_t *buff)
4621 {
4622 struct lpfc_fip_param_hdr *fcoe_param_hdr;
4623 struct lpfc_fcoe_params *fcoe_param;
4624
4625 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
4626 buff;
4627 fcoe_param = (struct lpfc_fcoe_params *)
4628 (buff + sizeof(struct lpfc_fip_param_hdr));
4629
4630 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
4631 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
4632 return;
4633
4634 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
4635 phba->valid_vlan = 1;
4636 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
4637 0xFFF;
4638 }
4639
4640 phba->fc_map[0] = fcoe_param->fc_map[0];
4641 phba->fc_map[1] = fcoe_param->fc_map[1];
4642 phba->fc_map[2] = fcoe_param->fc_map[2];
4643 return;
4644 }
4645
4646 /**
4647 * lpfc_get_rec_conf23 - Get a record type in config region data.
4648 * @buff: Buffer containing config region 23 data.
4649 * @size: Size of the data buffer.
4650 * @rec_type: Record type to be searched.
4651 *
4652 * This function searches config region data to find the begining
4653 * of the record specified by record_type. If record found, this
4654 * function return pointer to the record else return NULL.
4655 */
4656 static uint8_t *
4657 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
4658 {
4659 uint32_t offset = 0, rec_length;
4660
4661 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
4662 (size < sizeof(uint32_t)))
4663 return NULL;
4664
4665 rec_length = buff[offset + 1];
4666
4667 /*
4668 * One TLV record has one word header and number of data words
4669 * specified in the rec_length field of the record header.
4670 */
4671 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
4672 <= size) {
4673 if (buff[offset] == rec_type)
4674 return &buff[offset];
4675
4676 if (buff[offset] == LPFC_REGION23_LAST_REC)
4677 return NULL;
4678
4679 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
4680 rec_length = buff[offset + 1];
4681 }
4682 return NULL;
4683 }
4684
4685 /**
4686 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
4687 * @phba: Pointer to lpfc_hba data structure.
4688 * @buff: Buffer containing config region 23 data.
4689 * @size: Size of the data buffer.
4690 *
4691 * This fuction parse the FCoE config parameters in config region 23 and
4692 * populate driver data structure with the parameters.
4693 */
4694 void
4695 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
4696 uint8_t *buff,
4697 uint32_t size)
4698 {
4699 uint32_t offset = 0, rec_length;
4700 uint8_t *rec_ptr;
4701
4702 /*
4703 * If data size is less than 2 words signature and version cannot be
4704 * verified.
4705 */
4706 if (size < 2*sizeof(uint32_t))
4707 return;
4708
4709 /* Check the region signature first */
4710 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
4711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4712 "2567 Config region 23 has bad signature\n");
4713 return;
4714 }
4715
4716 offset += 4;
4717
4718 /* Check the data structure version */
4719 if (buff[offset] != LPFC_REGION23_VERSION) {
4720 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4721 "2568 Config region 23 has bad version\n");
4722 return;
4723 }
4724 offset += 4;
4725
4726 rec_length = buff[offset + 1];
4727
4728 /* Read FCoE param record */
4729 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
4730 size - offset, FCOE_PARAM_TYPE);
4731 if (rec_ptr)
4732 lpfc_read_fcoe_param(phba, rec_ptr);
4733
4734 /* Read FCF connection table */
4735 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
4736 size - offset, FCOE_CONN_TBL_TYPE);
4737 if (rec_ptr)
4738 lpfc_read_fcf_conn_tbl(phba, rec_ptr);
4739
4740 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree