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thinkpad-acpi: explain errors from acpi_install_notify_handler
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / lpfc / lpfc_hbadisc.c
blobe6a47e25b218ff3b44ca3b57deb534907dd8c21f
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 if (phba->hba_flag & HBA_RECEIVE_BUFFER)
529 lpfc_sli4_handle_received_buffer(phba);
530 }
531
532 vports = lpfc_create_vport_work_array(phba);
533 if (vports != NULL)
534 for (i = 0; i <= phba->max_vports; i++) {
535 /*
536 * We could have no vports in array if unloading, so if
537 * this happens then just use the pport
538 */
539 if (vports[i] == NULL && i == 0)
540 vport = phba->pport;
541 else
542 vport = vports[i];
543 if (vport == NULL)
544 break;
545 spin_lock_irq(&vport->work_port_lock);
546 work_port_events = vport->work_port_events;
547 vport->work_port_events &= ~work_port_events;
548 spin_unlock_irq(&vport->work_port_lock);
549 if (work_port_events & WORKER_DISC_TMO)
550 lpfc_disc_timeout_handler(vport);
551 if (work_port_events & WORKER_ELS_TMO)
552 lpfc_els_timeout_handler(vport);
553 if (work_port_events & WORKER_HB_TMO)
554 lpfc_hb_timeout_handler(phba);
555 if (work_port_events & WORKER_MBOX_TMO)
556 lpfc_mbox_timeout_handler(phba);
557 if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
558 lpfc_unblock_fabric_iocbs(phba);
559 if (work_port_events & WORKER_FDMI_TMO)
560 lpfc_fdmi_timeout_handler(vport);
561 if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
562 lpfc_ramp_down_queue_handler(phba);
563 if (work_port_events & WORKER_RAMP_UP_QUEUE)
564 lpfc_ramp_up_queue_handler(phba);
565 }
566 lpfc_destroy_vport_work_array(phba, vports);
567
568 pring = &phba->sli.ring[LPFC_ELS_RING];
569 status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
570 status >>= (4*LPFC_ELS_RING);
571 if ((status & HA_RXMASK)
572 || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
573 if (pring->flag & LPFC_STOP_IOCB_EVENT) {
574 pring->flag |= LPFC_DEFERRED_RING_EVENT;
575 /* Set the lpfc data pending flag */
576 set_bit(LPFC_DATA_READY, &phba->data_flags);
577 } else {
578 pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
579 lpfc_sli_handle_slow_ring_event(phba, pring,
580 (status &
581 HA_RXMASK));
582 }
583 /*
584 * Turn on Ring interrupts
585 */
586 if (phba->sli_rev <= LPFC_SLI_REV3) {
587 spin_lock_irq(&phba->hbalock);
588 control = readl(phba->HCregaddr);
589 if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
590 lpfc_debugfs_slow_ring_trc(phba,
591 "WRK Enable ring: cntl:x%x hacopy:x%x",
592 control, ha_copy, 0);
593
594 control |= (HC_R0INT_ENA << LPFC_ELS_RING);
595 writel(control, phba->HCregaddr);
596 readl(phba->HCregaddr); /* flush */
597 } else {
598 lpfc_debugfs_slow_ring_trc(phba,
599 "WRK Ring ok: cntl:x%x hacopy:x%x",
600 control, ha_copy, 0);
601 }
602 spin_unlock_irq(&phba->hbalock);
603 }
604 }
605 lpfc_work_list_done(phba);
606 }
607
608 int
609 lpfc_do_work(void *p)
610 {
611 struct lpfc_hba *phba = p;
612 int rc;
613
614 set_user_nice(current, -20);
615 phba->data_flags = 0;
616
617 while (!kthread_should_stop()) {
618 /* wait and check worker queue activities */
619 rc = wait_event_interruptible(phba->work_waitq,
620 (test_and_clear_bit(LPFC_DATA_READY,
621 &phba->data_flags)
622 || kthread_should_stop()));
623 /* Signal wakeup shall terminate the worker thread */
624 if (rc) {
625 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
626 "0433 Wakeup on signal: rc=x%x\n", rc);
627 break;
628 }
629
630 /* Attend pending lpfc data processing */
631 lpfc_work_done(phba);
632 }
633 phba->worker_thread = NULL;
634 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
635 "0432 Worker thread stopped.\n");
636 return 0;
637 }
638
639 /*
640 * This is only called to handle FC worker events. Since this a rare
641 * occurance, we allocate a struct lpfc_work_evt structure here instead of
642 * embedding it in the IOCB.
643 */
644 int
645 lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
646 uint32_t evt)
647 {
648 struct lpfc_work_evt *evtp;
649 unsigned long flags;
650
651 /*
652 * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
653 * be queued to worker thread for processing
654 */
655 evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
656 if (!evtp)
657 return 0;
658
659 evtp->evt_arg1 = arg1;
660 evtp->evt_arg2 = arg2;
661 evtp->evt = evt;
662
663 spin_lock_irqsave(&phba->hbalock, flags);
664 list_add_tail(&evtp->evt_listp, &phba->work_list);
665 spin_unlock_irqrestore(&phba->hbalock, flags);
666
667 lpfc_worker_wake_up(phba);
668
669 return 1;
670 }
671
672 void
673 lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
674 {
675 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
676 struct lpfc_hba *phba = vport->phba;
677 struct lpfc_nodelist *ndlp, *next_ndlp;
678 int rc;
679
680 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
681 if (!NLP_CHK_NODE_ACT(ndlp))
682 continue;
683 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
684 continue;
685 if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
686 ((vport->port_type == LPFC_NPIV_PORT) &&
687 (ndlp->nlp_DID == NameServer_DID)))
688 lpfc_unreg_rpi(vport, ndlp);
689
690 /* Leave Fabric nodes alone on link down */
691 if (!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 RSCN activity */
710 lpfc_els_flush_rscn(vport);
711
712 /* Cleanup any outstanding ELS commands */
713 lpfc_els_flush_cmd(vport);
714
715 lpfc_cleanup_rpis(vport, 0);
716
717 /* Turn off discovery timer if its running */
718 lpfc_can_disctmo(vport);
719 }
720
721 void
722 lpfc_linkdown_port(struct lpfc_vport *vport)
723 {
724 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
725
726 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
727
728 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
729 "Link Down: state:x%x rtry:x%x flg:x%x",
730 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
731
732 lpfc_port_link_failure(vport);
733
734 }
735
736 int
737 lpfc_linkdown(struct lpfc_hba *phba)
738 {
739 struct lpfc_vport *vport = phba->pport;
740 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
741 struct lpfc_vport **vports;
742 LPFC_MBOXQ_t *mb;
743 int i;
744
745 if (phba->link_state == LPFC_LINK_DOWN)
746 return 0;
747 spin_lock_irq(&phba->hbalock);
748 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_DISCOVERED);
749 if (phba->link_state > LPFC_LINK_DOWN) {
750 phba->link_state = LPFC_LINK_DOWN;
751 phba->pport->fc_flag &= ~FC_LBIT;
752 }
753 spin_unlock_irq(&phba->hbalock);
754 vports = lpfc_create_vport_work_array(phba);
755 if (vports != NULL)
756 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
757 /* Issue a LINK DOWN event to all nodes */
758 lpfc_linkdown_port(vports[i]);
759 }
760 lpfc_destroy_vport_work_array(phba, vports);
761 /* Clean up any firmware default rpi's */
762 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
763 if (mb) {
764 lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
765 mb->vport = vport;
766 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
767 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
768 == MBX_NOT_FINISHED) {
769 mempool_free(mb, phba->mbox_mem_pool);
770 }
771 }
772
773 /* Setup myDID for link up if we are in pt2pt mode */
774 if (phba->pport->fc_flag & FC_PT2PT) {
775 phba->pport->fc_myDID = 0;
776 mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
777 if (mb) {
778 lpfc_config_link(phba, mb);
779 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
780 mb->vport = vport;
781 if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
782 == MBX_NOT_FINISHED) {
783 mempool_free(mb, phba->mbox_mem_pool);
784 }
785 }
786 spin_lock_irq(shost->host_lock);
787 phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
788 spin_unlock_irq(shost->host_lock);
789 }
790
791 return 0;
792 }
793
794 static void
795 lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
796 {
797 struct lpfc_nodelist *ndlp;
798
799 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
800 if (!NLP_CHK_NODE_ACT(ndlp))
801 continue;
802 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
803 continue;
804 if (ndlp->nlp_type & NLP_FABRIC) {
805 /* On Linkup its safe to clean up the ndlp
806 * from Fabric connections.
807 */
808 if (ndlp->nlp_DID != Fabric_DID)
809 lpfc_unreg_rpi(vport, ndlp);
810 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
811 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
812 /* Fail outstanding IO now since device is
813 * marked for PLOGI.
814 */
815 lpfc_unreg_rpi(vport, ndlp);
816 }
817 }
818 }
819
820 static void
821 lpfc_linkup_port(struct lpfc_vport *vport)
822 {
823 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
824 struct lpfc_hba *phba = vport->phba;
825
826 if ((vport->load_flag & FC_UNLOADING) != 0)
827 return;
828
829 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
830 "Link Up: top:x%x speed:x%x flg:x%x",
831 phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
832
833 /* If NPIV is not enabled, only bring the physical port up */
834 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
835 (vport != phba->pport))
836 return;
837
838 fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
839
840 spin_lock_irq(shost->host_lock);
841 vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
842 FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
843 vport->fc_flag |= FC_NDISC_ACTIVE;
844 vport->fc_ns_retry = 0;
845 spin_unlock_irq(shost->host_lock);
846
847 if (vport->fc_flag & FC_LBIT)
848 lpfc_linkup_cleanup_nodes(vport);
849
850 }
851
852 static int
853 lpfc_linkup(struct lpfc_hba *phba)
854 {
855 struct lpfc_vport **vports;
856 int i;
857
858 phba->link_state = LPFC_LINK_UP;
859
860 /* Unblock fabric iocbs if they are blocked */
861 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
862 del_timer_sync(&phba->fabric_block_timer);
863
864 vports = lpfc_create_vport_work_array(phba);
865 if (vports != NULL)
866 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
867 lpfc_linkup_port(vports[i]);
868 lpfc_destroy_vport_work_array(phba, vports);
869 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
870 (phba->sli_rev < LPFC_SLI_REV4))
871 lpfc_issue_clear_la(phba, phba->pport);
872
873 return 0;
874 }
875
876 /*
877 * This routine handles processing a CLEAR_LA mailbox
878 * command upon completion. It is setup in the LPFC_MBOXQ
879 * as the completion routine when the command is
880 * handed off to the SLI layer.
881 */
882 static void
883 lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
884 {
885 struct lpfc_vport *vport = pmb->vport;
886 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
887 struct lpfc_sli *psli = &phba->sli;
888 MAILBOX_t *mb = &pmb->u.mb;
889 uint32_t control;
890
891 /* Since we don't do discovery right now, turn these off here */
892 psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
893 psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
894 psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
895
896 /* Check for error */
897 if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
898 /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
899 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
900 "0320 CLEAR_LA mbxStatus error x%x hba "
901 "state x%x\n",
902 mb->mbxStatus, vport->port_state);
903 phba->link_state = LPFC_HBA_ERROR;
904 goto out;
905 }
906
907 if (vport->port_type == LPFC_PHYSICAL_PORT)
908 phba->link_state = LPFC_HBA_READY;
909
910 spin_lock_irq(&phba->hbalock);
911 psli->sli_flag |= LPFC_PROCESS_LA;
912 control = readl(phba->HCregaddr);
913 control |= HC_LAINT_ENA;
914 writel(control, phba->HCregaddr);
915 readl(phba->HCregaddr); /* flush */
916 spin_unlock_irq(&phba->hbalock);
917 mempool_free(pmb, phba->mbox_mem_pool);
918 return;
919
920 out:
921 /* Device Discovery completes */
922 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
923 "0225 Device Discovery completes\n");
924 mempool_free(pmb, phba->mbox_mem_pool);
925
926 spin_lock_irq(shost->host_lock);
927 vport->fc_flag &= ~FC_ABORT_DISCOVERY;
928 spin_unlock_irq(shost->host_lock);
929
930 lpfc_can_disctmo(vport);
931
932 /* turn on Link Attention interrupts */
933
934 spin_lock_irq(&phba->hbalock);
935 psli->sli_flag |= LPFC_PROCESS_LA;
936 control = readl(phba->HCregaddr);
937 control |= HC_LAINT_ENA;
938 writel(control, phba->HCregaddr);
939 readl(phba->HCregaddr); /* flush */
940 spin_unlock_irq(&phba->hbalock);
941
942 return;
943 }
944
945
946 static void
947 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
948 {
949 struct lpfc_vport *vport = pmb->vport;
950
951 if (pmb->u.mb.mbxStatus)
952 goto out;
953
954 mempool_free(pmb, phba->mbox_mem_pool);
955
956 if (phba->fc_topology == TOPOLOGY_LOOP &&
957 vport->fc_flag & FC_PUBLIC_LOOP &&
958 !(vport->fc_flag & FC_LBIT)) {
959 /* Need to wait for FAN - use discovery timer
960 * for timeout. port_state is identically
961 * LPFC_LOCAL_CFG_LINK while waiting for FAN
962 */
963 lpfc_set_disctmo(vport);
964 return;
965 }
966
967 /* Start discovery by sending a FLOGI. port_state is identically
968 * LPFC_FLOGI while waiting for FLOGI cmpl
969 */
970 if (vport->port_state != LPFC_FLOGI) {
971 lpfc_initial_flogi(vport);
972 }
973 return;
974
975 out:
976 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
977 "0306 CONFIG_LINK mbxStatus error x%x "
978 "HBA state x%x\n",
979 pmb->u.mb.mbxStatus, vport->port_state);
980 mempool_free(pmb, phba->mbox_mem_pool);
981
982 lpfc_linkdown(phba);
983
984 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
985 "0200 CONFIG_LINK bad hba state x%x\n",
986 vport->port_state);
987
988 lpfc_issue_clear_la(phba, vport);
989 return;
990 }
991
992 static void
993 lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
994 {
995 struct lpfc_vport *vport = mboxq->vport;
996 unsigned long flags;
997
998 if (mboxq->u.mb.mbxStatus) {
999 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1000 "2017 REG_FCFI mbxStatus error x%x "
1001 "HBA state x%x\n",
1002 mboxq->u.mb.mbxStatus, vport->port_state);
1003 mempool_free(mboxq, phba->mbox_mem_pool);
1004 return;
1005 }
1006
1007 /* Start FCoE discovery by sending a FLOGI. */
1008 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
1009 /* Set the FCFI registered flag */
1010 spin_lock_irqsave(&phba->hbalock, flags);
1011 phba->fcf.fcf_flag |= FCF_REGISTERED;
1012 spin_unlock_irqrestore(&phba->hbalock, flags);
1013 /* If there is a pending FCoE event, restart FCF table scan. */
1014 if (lpfc_check_pending_fcoe_event(phba, 1)) {
1015 mempool_free(mboxq, phba->mbox_mem_pool);
1016 return;
1017 }
1018 if (vport->port_state != LPFC_FLOGI) {
1019 spin_lock_irqsave(&phba->hbalock, flags);
1020 phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE);
1021 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1022 spin_unlock_irqrestore(&phba->hbalock, flags);
1023 lpfc_initial_flogi(vport);
1024 }
1025
1026 mempool_free(mboxq, phba->mbox_mem_pool);
1027 return;
1028 }
1029
1030 /**
1031 * lpfc_fab_name_match - Check if the fcf fabric name match.
1032 * @fab_name: pointer to fabric name.
1033 * @new_fcf_record: pointer to fcf record.
1034 *
1035 * This routine compare the fcf record's fabric name with provided
1036 * fabric name. If the fabric name are identical this function
1037 * returns 1 else return 0.
1038 **/
1039 static uint32_t
1040 lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
1041 {
1042 if ((fab_name[0] ==
1043 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) &&
1044 (fab_name[1] ==
1045 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) &&
1046 (fab_name[2] ==
1047 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) &&
1048 (fab_name[3] ==
1049 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) &&
1050 (fab_name[4] ==
1051 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) &&
1052 (fab_name[5] ==
1053 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) &&
1054 (fab_name[6] ==
1055 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) &&
1056 (fab_name[7] ==
1057 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)))
1058 return 1;
1059 else
1060 return 0;
1061 }
1062
1063 /**
1064 * lpfc_sw_name_match - Check if the fcf switch name match.
1065 * @fab_name: pointer to fabric name.
1066 * @new_fcf_record: pointer to fcf record.
1067 *
1068 * This routine compare the fcf record's switch name with provided
1069 * switch name. If the switch name are identical this function
1070 * returns 1 else return 0.
1071 **/
1072 static uint32_t
1073 lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
1074 {
1075 if ((sw_name[0] ==
1076 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) &&
1077 (sw_name[1] ==
1078 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) &&
1079 (sw_name[2] ==
1080 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) &&
1081 (sw_name[3] ==
1082 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) &&
1083 (sw_name[4] ==
1084 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) &&
1085 (sw_name[5] ==
1086 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) &&
1087 (sw_name[6] ==
1088 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) &&
1089 (sw_name[7] ==
1090 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)))
1091 return 1;
1092 else
1093 return 0;
1094 }
1095
1096 /**
1097 * lpfc_mac_addr_match - Check if the fcf mac address match.
1098 * @phba: pointer to lpfc hba data structure.
1099 * @new_fcf_record: pointer to fcf record.
1100 *
1101 * This routine compare the fcf record's mac address with HBA's
1102 * FCF mac address. If the mac addresses are identical this function
1103 * returns 1 else return 0.
1104 **/
1105 static uint32_t
1106 lpfc_mac_addr_match(struct lpfc_hba *phba, struct fcf_record *new_fcf_record)
1107 {
1108 if ((phba->fcf.mac_addr[0] ==
1109 bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) &&
1110 (phba->fcf.mac_addr[1] ==
1111 bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) &&
1112 (phba->fcf.mac_addr[2] ==
1113 bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) &&
1114 (phba->fcf.mac_addr[3] ==
1115 bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) &&
1116 (phba->fcf.mac_addr[4] ==
1117 bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) &&
1118 (phba->fcf.mac_addr[5] ==
1119 bf_get(lpfc_fcf_record_mac_5, new_fcf_record)))
1120 return 1;
1121 else
1122 return 0;
1123 }
1124
1125 /**
1126 * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
1127 * @phba: pointer to lpfc hba data structure.
1128 * @new_fcf_record: pointer to fcf record.
1129 *
1130 * This routine copies the FCF information from the FCF
1131 * record to lpfc_hba data structure.
1132 **/
1133 static void
1134 lpfc_copy_fcf_record(struct lpfc_hba *phba, struct fcf_record *new_fcf_record)
1135 {
1136 phba->fcf.fabric_name[0] =
1137 bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
1138 phba->fcf.fabric_name[1] =
1139 bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
1140 phba->fcf.fabric_name[2] =
1141 bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
1142 phba->fcf.fabric_name[3] =
1143 bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
1144 phba->fcf.fabric_name[4] =
1145 bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
1146 phba->fcf.fabric_name[5] =
1147 bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
1148 phba->fcf.fabric_name[6] =
1149 bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
1150 phba->fcf.fabric_name[7] =
1151 bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
1152 phba->fcf.mac_addr[0] =
1153 bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
1154 phba->fcf.mac_addr[1] =
1155 bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
1156 phba->fcf.mac_addr[2] =
1157 bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
1158 phba->fcf.mac_addr[3] =
1159 bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
1160 phba->fcf.mac_addr[4] =
1161 bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
1162 phba->fcf.mac_addr[5] =
1163 bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
1164 phba->fcf.fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
1165 phba->fcf.priority = new_fcf_record->fip_priority;
1166 phba->fcf.switch_name[0] =
1167 bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
1168 phba->fcf.switch_name[1] =
1169 bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
1170 phba->fcf.switch_name[2] =
1171 bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
1172 phba->fcf.switch_name[3] =
1173 bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
1174 phba->fcf.switch_name[4] =
1175 bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
1176 phba->fcf.switch_name[5] =
1177 bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
1178 phba->fcf.switch_name[6] =
1179 bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
1180 phba->fcf.switch_name[7] =
1181 bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
1182 }
1183
1184 /**
1185 * lpfc_register_fcf - Register the FCF with hba.
1186 * @phba: pointer to lpfc hba data structure.
1187 *
1188 * This routine issues a register fcfi mailbox command to register
1189 * the fcf with HBA.
1190 **/
1191 static void
1192 lpfc_register_fcf(struct lpfc_hba *phba)
1193 {
1194 LPFC_MBOXQ_t *fcf_mbxq;
1195 int rc;
1196 unsigned long flags;
1197
1198 spin_lock_irqsave(&phba->hbalock, flags);
1199
1200 /* If the FCF is not availabe do nothing. */
1201 if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
1202 spin_unlock_irqrestore(&phba->hbalock, flags);
1203 return;
1204 }
1205
1206 /* The FCF is already registered, start discovery */
1207 if (phba->fcf.fcf_flag & FCF_REGISTERED) {
1208 phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE);
1209 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
1210 spin_unlock_irqrestore(&phba->hbalock, flags);
1211 if (phba->pport->port_state != LPFC_FLOGI)
1212 lpfc_initial_flogi(phba->pport);
1213 return;
1214 }
1215 spin_unlock_irqrestore(&phba->hbalock, flags);
1216
1217 fcf_mbxq = mempool_alloc(phba->mbox_mem_pool,
1218 GFP_KERNEL);
1219 if (!fcf_mbxq)
1220 return;
1221
1222 lpfc_reg_fcfi(phba, fcf_mbxq);
1223 fcf_mbxq->vport = phba->pport;
1224 fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
1225 rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
1226 if (rc == MBX_NOT_FINISHED)
1227 mempool_free(fcf_mbxq, phba->mbox_mem_pool);
1228
1229 return;
1230 }
1231
1232 /**
1233 * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
1234 * @phba: pointer to lpfc hba data structure.
1235 * @new_fcf_record: pointer to fcf record.
1236 * @boot_flag: Indicates if this record used by boot bios.
1237 * @addr_mode: The address mode to be used by this FCF
1238 *
1239 * This routine compare the fcf record with connect list obtained from the
1240 * config region to decide if this FCF can be used for SAN discovery. It returns
1241 * 1 if this record can be used for SAN discovery else return zero. If this FCF
1242 * record can be used for SAN discovery, the boot_flag will indicate if this FCF
1243 * is used by boot bios and addr_mode will indicate the addressing mode to be
1244 * used for this FCF when the function returns.
1245 * If the FCF record need to be used with a particular vlan id, the vlan is
1246 * set in the vlan_id on return of the function. If not VLAN tagging need to
1247 * be used with the FCF vlan_id will be set to 0xFFFF;
1248 **/
1249 static int
1250 lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
1251 struct fcf_record *new_fcf_record,
1252 uint32_t *boot_flag, uint32_t *addr_mode,
1253 uint16_t *vlan_id)
1254 {
1255 struct lpfc_fcf_conn_entry *conn_entry;
1256
1257 /* If FCF not available return 0 */
1258 if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
1259 !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record))
1260 return 0;
1261
1262 if (!phba->cfg_enable_fip) {
1263 *boot_flag = 0;
1264 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1265 new_fcf_record);
1266 if (phba->valid_vlan)
1267 *vlan_id = phba->vlan_id;
1268 else
1269 *vlan_id = 0xFFFF;
1270 return 1;
1271 }
1272
1273 /*
1274 * If there are no FCF connection table entry, driver connect to all
1275 * FCFs.
1276 */
1277 if (list_empty(&phba->fcf_conn_rec_list)) {
1278 *boot_flag = 0;
1279 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1280 new_fcf_record);
1281
1282 /*
1283 * When there are no FCF connect entries, use driver's default
1284 * addressing mode - FPMA.
1285 */
1286 if (*addr_mode & LPFC_FCF_FPMA)
1287 *addr_mode = LPFC_FCF_FPMA;
1288
1289 *vlan_id = 0xFFFF;
1290 return 1;
1291 }
1292
1293 list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, list) {
1294 if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
1295 continue;
1296
1297 if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
1298 !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
1299 new_fcf_record))
1300 continue;
1301 if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
1302 !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
1303 new_fcf_record))
1304 continue;
1305 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
1306 /*
1307 * If the vlan bit map does not have the bit set for the
1308 * vlan id to be used, then it is not a match.
1309 */
1310 if (!(new_fcf_record->vlan_bitmap
1311 [conn_entry->conn_rec.vlan_tag / 8] &
1312 (1 << (conn_entry->conn_rec.vlan_tag % 8))))
1313 continue;
1314 }
1315
1316 /*
1317 * If connection record does not support any addressing mode,
1318 * skip the FCF record.
1319 */
1320 if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
1321 & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
1322 continue;
1323
1324 /*
1325 * Check if the connection record specifies a required
1326 * addressing mode.
1327 */
1328 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1329 !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
1330
1331 /*
1332 * If SPMA required but FCF not support this continue.
1333 */
1334 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1335 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1336 new_fcf_record) & LPFC_FCF_SPMA))
1337 continue;
1338
1339 /*
1340 * If FPMA required but FCF not support this continue.
1341 */
1342 if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1343 !(bf_get(lpfc_fcf_record_mac_addr_prov,
1344 new_fcf_record) & LPFC_FCF_FPMA))
1345 continue;
1346 }
1347
1348 /*
1349 * This fcf record matches filtering criteria.
1350 */
1351 if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
1352 *boot_flag = 1;
1353 else
1354 *boot_flag = 0;
1355
1356 /*
1357 * If user did not specify any addressing mode, or if the
1358 * prefered addressing mode specified by user is not supported
1359 * by FCF, allow fabric to pick the addressing mode.
1360 */
1361 *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
1362 new_fcf_record);
1363 /*
1364 * If the user specified a required address mode, assign that
1365 * address mode
1366 */
1367 if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1368 (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
1369 *addr_mode = (conn_entry->conn_rec.flags &
1370 FCFCNCT_AM_SPMA) ?
1371 LPFC_FCF_SPMA : LPFC_FCF_FPMA;
1372 /*
1373 * If the user specified a prefered address mode, use the
1374 * addr mode only if FCF support the addr_mode.
1375 */
1376 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1377 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1378 (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1379 (*addr_mode & LPFC_FCF_SPMA))
1380 *addr_mode = LPFC_FCF_SPMA;
1381 else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
1382 (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
1383 !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
1384 (*addr_mode & LPFC_FCF_FPMA))
1385 *addr_mode = LPFC_FCF_FPMA;
1386
1387 if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
1388 *vlan_id = conn_entry->conn_rec.vlan_tag;
1389 else
1390 *vlan_id = 0xFFFF;
1391
1392 return 1;
1393 }
1394
1395 return 0;
1396 }
1397
1398 /**
1399 * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
1400 * @phba: pointer to lpfc hba data structure.
1401 * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
1402 *
1403 * This function check if there is any fcoe event pending while driver
1404 * scan FCF entries. If there is any pending event, it will restart the
1405 * FCF saning and return 1 else return 0.
1406 */
1407 int
1408 lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
1409 {
1410 LPFC_MBOXQ_t *mbox;
1411 int rc;
1412 /*
1413 * If the Link is up and no FCoE events while in the
1414 * FCF discovery, no need to restart FCF discovery.
1415 */
1416 if ((phba->link_state >= LPFC_LINK_UP) &&
1417 (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
1418 return 0;
1419
1420 spin_lock_irq(&phba->hbalock);
1421 phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
1422 spin_unlock_irq(&phba->hbalock);
1423
1424 if (phba->link_state >= LPFC_LINK_UP)
1425 lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
1426
1427 if (unreg_fcf) {
1428 spin_lock_irq(&phba->hbalock);
1429 phba->fcf.fcf_flag &= ~FCF_REGISTERED;
1430 spin_unlock_irq(&phba->hbalock);
1431 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1432 if (!mbox) {
1433 lpfc_printf_log(phba, KERN_ERR,
1434 LOG_DISCOVERY|LOG_MBOX,
1435 "2610 UNREG_FCFI mbox allocation failed\n");
1436 return 1;
1437 }
1438 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
1439 mbox->vport = phba->pport;
1440 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
1441 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
1442 if (rc == MBX_NOT_FINISHED) {
1443 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
1444 "2611 UNREG_FCFI issue mbox failed\n");
1445 mempool_free(mbox, phba->mbox_mem_pool);
1446 }
1447 }
1448
1449 return 1;
1450 }
1451
1452 /**
1453 * lpfc_mbx_cmpl_read_fcf_record - Completion handler for read_fcf mbox.
1454 * @phba: pointer to lpfc hba data structure.
1455 * @mboxq: pointer to mailbox object.
1456 *
1457 * This function iterate through all the fcf records available in
1458 * HBA and choose the optimal FCF record for discovery. After finding
1459 * the FCF for discovery it register the FCF record and kick start
1460 * discovery.
1461 * If FCF_IN_USE flag is set in currently used FCF, the routine try to
1462 * use a FCF record which match fabric name and mac address of the
1463 * currently used FCF record.
1464 * If the driver support only one FCF, it will try to use the FCF record
1465 * used by BOOT_BIOS.
1466 */
1467 void
1468 lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1469 {
1470 void *virt_addr;
1471 dma_addr_t phys_addr;
1472 uint8_t *bytep;
1473 struct lpfc_mbx_sge sge;
1474 struct lpfc_mbx_read_fcf_tbl *read_fcf;
1475 uint32_t shdr_status, shdr_add_status;
1476 union lpfc_sli4_cfg_shdr *shdr;
1477 struct fcf_record *new_fcf_record;
1478 int rc;
1479 uint32_t boot_flag, addr_mode;
1480 uint32_t next_fcf_index;
1481 unsigned long flags;
1482 uint16_t vlan_id;
1483
1484 /* If there is pending FCoE event restart FCF table scan */
1485 if (lpfc_check_pending_fcoe_event(phba, 0)) {
1486 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1487 return;
1488 }
1489
1490 /* Get the first SGE entry from the non-embedded DMA memory. This
1491 * routine only uses a single SGE.
1492 */
1493 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
1494 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
1495 if (unlikely(!mboxq->sge_array)) {
1496 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1497 "2524 Failed to get the non-embedded SGE "
1498 "virtual address\n");
1499 goto out;
1500 }
1501 virt_addr = mboxq->sge_array->addr[0];
1502
1503 shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
1504 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
1505 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
1506 &shdr->response);
1507 /*
1508 * The FCF Record was read and there is no reason for the driver
1509 * to maintain the FCF record data or memory. Instead, just need
1510 * to book keeping the FCFIs can be used.
1511 */
1512 if (shdr_status || shdr_add_status) {
1513 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1514 "2521 READ_FCF_RECORD mailbox failed "
1515 "with status x%x add_status x%x, mbx\n",
1516 shdr_status, shdr_add_status);
1517 goto out;
1518 }
1519 /* Interpreting the returned information of FCF records */
1520 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
1521 lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
1522 sizeof(struct lpfc_mbx_read_fcf_tbl));
1523 next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
1524
1525 new_fcf_record = (struct fcf_record *)(virt_addr +
1526 sizeof(struct lpfc_mbx_read_fcf_tbl));
1527 lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
1528 sizeof(struct fcf_record));
1529 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
1530
1531 rc = lpfc_match_fcf_conn_list(phba, new_fcf_record,
1532 &boot_flag, &addr_mode,
1533 &vlan_id);
1534 /*
1535 * If the fcf record does not match with connect list entries
1536 * read the next entry.
1537 */
1538 if (!rc)
1539 goto read_next_fcf;
1540 /*
1541 * If this is not the first FCF discovery of the HBA, use last
1542 * FCF record for the discovery.
1543 */
1544 spin_lock_irqsave(&phba->hbalock, flags);
1545 if (phba->fcf.fcf_flag & FCF_IN_USE) {
1546 if (lpfc_fab_name_match(phba->fcf.fabric_name,
1547 new_fcf_record) &&
1548 lpfc_sw_name_match(phba->fcf.switch_name,
1549 new_fcf_record) &&
1550 lpfc_mac_addr_match(phba, new_fcf_record)) {
1551 phba->fcf.fcf_flag |= FCF_AVAILABLE;
1552 spin_unlock_irqrestore(&phba->hbalock, flags);
1553 goto out;
1554 }
1555 spin_unlock_irqrestore(&phba->hbalock, flags);
1556 goto read_next_fcf;
1557 }
1558 if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
1559 /*
1560 * If the current FCF record does not have boot flag
1561 * set and new fcf record has boot flag set, use the
1562 * new fcf record.
1563 */
1564 if (boot_flag && !(phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) {
1565 /* Use this FCF record */
1566 lpfc_copy_fcf_record(phba, new_fcf_record);
1567 phba->fcf.addr_mode = addr_mode;
1568 phba->fcf.fcf_flag |= FCF_BOOT_ENABLE;
1569 if (vlan_id != 0xFFFF) {
1570 phba->fcf.fcf_flag |= FCF_VALID_VLAN;
1571 phba->fcf.vlan_id = vlan_id;
1572 }
1573 spin_unlock_irqrestore(&phba->hbalock, flags);
1574 goto read_next_fcf;
1575 }
1576 /*
1577 * If the current FCF record has boot flag set and the
1578 * new FCF record does not have boot flag, read the next
1579 * FCF record.
1580 */
1581 if (!boot_flag && (phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) {
1582 spin_unlock_irqrestore(&phba->hbalock, flags);
1583 goto read_next_fcf;
1584 }
1585 /*
1586 * If there is a record with lower priority value for
1587 * the current FCF, use that record.
1588 */
1589 if (lpfc_fab_name_match(phba->fcf.fabric_name,
1590 new_fcf_record) &&
1591 (new_fcf_record->fip_priority < phba->fcf.priority)) {
1592 /* Use this FCF record */
1593 lpfc_copy_fcf_record(phba, new_fcf_record);
1594 phba->fcf.addr_mode = addr_mode;
1595 if (vlan_id != 0xFFFF) {
1596 phba->fcf.fcf_flag |= FCF_VALID_VLAN;
1597 phba->fcf.vlan_id = vlan_id;
1598 }
1599 spin_unlock_irqrestore(&phba->hbalock, flags);
1600 goto read_next_fcf;
1601 }
1602 spin_unlock_irqrestore(&phba->hbalock, flags);
1603 goto read_next_fcf;
1604 }
1605 /*
1606 * This is the first available FCF record, use this
1607 * record.
1608 */
1609 lpfc_copy_fcf_record(phba, new_fcf_record);
1610 phba->fcf.addr_mode = addr_mode;
1611 if (boot_flag)
1612 phba->fcf.fcf_flag |= FCF_BOOT_ENABLE;
1613 phba->fcf.fcf_flag |= FCF_AVAILABLE;
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 read_next_fcf:
1622 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1623 if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0)
1624 lpfc_register_fcf(phba);
1625 else
1626 lpfc_sli4_read_fcf_record(phba, next_fcf_index);
1627 return;
1628
1629 out:
1630 lpfc_sli4_mbox_cmd_free(phba, mboxq);
1631 lpfc_register_fcf(phba);
1632
1633 return;
1634 }
1635
1636 /**
1637 * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
1638 * @phba: pointer to lpfc hba data structure.
1639 * @mboxq: pointer to mailbox data structure.
1640 *
1641 * This function handles completion of init vpi mailbox command.
1642 */
1643 static void
1644 lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1645 {
1646 struct lpfc_vport *vport = mboxq->vport;
1647 if (mboxq->u.mb.mbxStatus) {
1648 lpfc_printf_vlog(vport, KERN_ERR,
1649 LOG_MBOX,
1650 "2609 Init VPI mailbox failed 0x%x\n",
1651 mboxq->u.mb.mbxStatus);
1652 mempool_free(mboxq, phba->mbox_mem_pool);
1653 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1654 return;
1655 }
1656 vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
1657
1658 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
1659 lpfc_initial_fdisc(vport);
1660 else {
1661 lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
1662 lpfc_printf_vlog(vport, KERN_ERR,
1663 LOG_ELS,
1664 "2606 No NPIV Fabric support\n");
1665 }
1666 return;
1667 }
1668
1669 /**
1670 * lpfc_start_fdiscs - send fdiscs for each vports on this port.
1671 * @phba: pointer to lpfc hba data structure.
1672 *
1673 * This function loops through the list of vports on the @phba and issues an
1674 * FDISC if possible.
1675 */
1676 void
1677 lpfc_start_fdiscs(struct lpfc_hba *phba)
1678 {
1679 struct lpfc_vport **vports;
1680 int i;
1681 LPFC_MBOXQ_t *mboxq;
1682 int rc;
1683
1684 vports = lpfc_create_vport_work_array(phba);
1685 if (vports != NULL) {
1686 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1687 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
1688 continue;
1689 /* There are no vpi for this vport */
1690 if (vports[i]->vpi > phba->max_vpi) {
1691 lpfc_vport_set_state(vports[i],
1692 FC_VPORT_FAILED);
1693 continue;
1694 }
1695 if (phba->fc_topology == TOPOLOGY_LOOP) {
1696 lpfc_vport_set_state(vports[i],
1697 FC_VPORT_LINKDOWN);
1698 continue;
1699 }
1700 if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
1701 mboxq = mempool_alloc(phba->mbox_mem_pool,
1702 GFP_KERNEL);
1703 if (!mboxq) {
1704 lpfc_printf_vlog(vports[i], KERN_ERR,
1705 LOG_MBOX, "2607 Failed to allocate "
1706 "init_vpi mailbox\n");
1707 continue;
1708 }
1709 lpfc_init_vpi(phba, mboxq, vports[i]->vpi);
1710 mboxq->vport = vports[i];
1711 mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
1712 rc = lpfc_sli_issue_mbox(phba, mboxq,
1713 MBX_NOWAIT);
1714 if (rc == MBX_NOT_FINISHED) {
1715 lpfc_printf_vlog(vports[i], KERN_ERR,
1716 LOG_MBOX, "2608 Failed to issue "
1717 "init_vpi mailbox\n");
1718 mempool_free(mboxq,
1719 phba->mbox_mem_pool);
1720 }
1721 continue;
1722 }
1723 if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
1724 lpfc_initial_fdisc(vports[i]);
1725 else {
1726 lpfc_vport_set_state(vports[i],
1727 FC_VPORT_NO_FABRIC_SUPP);
1728 lpfc_printf_vlog(vports[i], KERN_ERR,
1729 LOG_ELS,
1730 "0259 No NPIV "
1731 "Fabric support\n");
1732 }
1733 }
1734 }
1735 lpfc_destroy_vport_work_array(phba, vports);
1736 }
1737
1738 void
1739 lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1740 {
1741 struct lpfc_dmabuf *dmabuf = mboxq->context1;
1742 struct lpfc_vport *vport = mboxq->vport;
1743
1744 if (mboxq->u.mb.mbxStatus) {
1745 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1746 "2018 REG_VFI mbxStatus error x%x "
1747 "HBA state x%x\n",
1748 mboxq->u.mb.mbxStatus, vport->port_state);
1749 if (phba->fc_topology == TOPOLOGY_LOOP) {
1750 /* FLOGI failed, use loop map to make discovery list */
1751 lpfc_disc_list_loopmap(vport);
1752 /* Start discovery */
1753 lpfc_disc_start(vport);
1754 goto fail_free_mem;
1755 }
1756 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
1757 goto fail_free_mem;
1758 }
1759 /* Mark the vport has registered with its VFI */
1760 vport->vfi_state |= LPFC_VFI_REGISTERED;
1761
1762 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
1763 lpfc_start_fdiscs(phba);
1764 lpfc_do_scr_ns_plogi(phba, vport);
1765 }
1766
1767 fail_free_mem:
1768 mempool_free(mboxq, phba->mbox_mem_pool);
1769 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
1770 kfree(dmabuf);
1771 return;
1772 }
1773
1774 static void
1775 lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1776 {
1777 MAILBOX_t *mb = &pmb->u.mb;
1778 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
1779 struct lpfc_vport *vport = pmb->vport;
1780
1781
1782 /* Check for error */
1783 if (mb->mbxStatus) {
1784 /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
1785 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
1786 "0319 READ_SPARAM mbxStatus error x%x "
1787 "hba state x%x>\n",
1788 mb->mbxStatus, vport->port_state);
1789 lpfc_linkdown(phba);
1790 goto out;
1791 }
1792
1793 memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
1794 sizeof (struct serv_parm));
1795 if (phba->cfg_soft_wwnn)
1796 u64_to_wwn(phba->cfg_soft_wwnn,
1797 vport->fc_sparam.nodeName.u.wwn);
1798 if (phba->cfg_soft_wwpn)
1799 u64_to_wwn(phba->cfg_soft_wwpn,
1800 vport->fc_sparam.portName.u.wwn);
1801 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
1802 sizeof(vport->fc_nodename));
1803 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
1804 sizeof(vport->fc_portname));
1805 if (vport->port_type == LPFC_PHYSICAL_PORT) {
1806 memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
1807 memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
1808 }
1809
1810 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1811 kfree(mp);
1812 mempool_free(pmb, phba->mbox_mem_pool);
1813 return;
1814
1815 out:
1816 pmb->context1 = NULL;
1817 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1818 kfree(mp);
1819 lpfc_issue_clear_la(phba, vport);
1820 mempool_free(pmb, phba->mbox_mem_pool);
1821 return;
1822 }
1823
1824 static void
1825 lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
1826 {
1827 struct lpfc_vport *vport = phba->pport;
1828 LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
1829 int i;
1830 struct lpfc_dmabuf *mp;
1831 int rc;
1832 struct fcf_record *fcf_record;
1833
1834 sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1835
1836 spin_lock_irq(&phba->hbalock);
1837 switch (la->UlnkSpeed) {
1838 case LA_1GHZ_LINK:
1839 phba->fc_linkspeed = LA_1GHZ_LINK;
1840 break;
1841 case LA_2GHZ_LINK:
1842 phba->fc_linkspeed = LA_2GHZ_LINK;
1843 break;
1844 case LA_4GHZ_LINK:
1845 phba->fc_linkspeed = LA_4GHZ_LINK;
1846 break;
1847 case LA_8GHZ_LINK:
1848 phba->fc_linkspeed = LA_8GHZ_LINK;
1849 break;
1850 case LA_10GHZ_LINK:
1851 phba->fc_linkspeed = LA_10GHZ_LINK;
1852 break;
1853 default:
1854 phba->fc_linkspeed = LA_UNKNW_LINK;
1855 break;
1856 }
1857
1858 phba->fc_topology = la->topology;
1859 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
1860
1861 if (phba->fc_topology == TOPOLOGY_LOOP) {
1862 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
1863
1864 if (phba->cfg_enable_npiv)
1865 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1866 "1309 Link Up Event npiv not supported in loop "
1867 "topology\n");
1868 /* Get Loop Map information */
1869 if (la->il)
1870 vport->fc_flag |= FC_LBIT;
1871
1872 vport->fc_myDID = la->granted_AL_PA;
1873 i = la->un.lilpBde64.tus.f.bdeSize;
1874
1875 if (i == 0) {
1876 phba->alpa_map[0] = 0;
1877 } else {
1878 if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
1879 int numalpa, j, k;
1880 union {
1881 uint8_t pamap[16];
1882 struct {
1883 uint32_t wd1;
1884 uint32_t wd2;
1885 uint32_t wd3;
1886 uint32_t wd4;
1887 } pa;
1888 } un;
1889 numalpa = phba->alpa_map[0];
1890 j = 0;
1891 while (j < numalpa) {
1892 memset(un.pamap, 0, 16);
1893 for (k = 1; j < numalpa; k++) {
1894 un.pamap[k - 1] =
1895 phba->alpa_map[j + 1];
1896 j++;
1897 if (k == 16)
1898 break;
1899 }
1900 /* Link Up Event ALPA map */
1901 lpfc_printf_log(phba,
1902 KERN_WARNING,
1903 LOG_LINK_EVENT,
1904 "1304 Link Up Event "
1905 "ALPA map Data: x%x "
1906 "x%x x%x x%x\n",
1907 un.pa.wd1, un.pa.wd2,
1908 un.pa.wd3, un.pa.wd4);
1909 }
1910 }
1911 }
1912 } else {
1913 if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
1914 if (phba->max_vpi && phba->cfg_enable_npiv &&
1915 (phba->sli_rev == 3))
1916 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
1917 }
1918 vport->fc_myDID = phba->fc_pref_DID;
1919 vport->fc_flag |= FC_LBIT;
1920 }
1921 spin_unlock_irq(&phba->hbalock);
1922
1923 lpfc_linkup(phba);
1924 if (sparam_mbox) {
1925 lpfc_read_sparam(phba, sparam_mbox, 0);
1926 sparam_mbox->vport = vport;
1927 sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
1928 rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
1929 if (rc == MBX_NOT_FINISHED) {
1930 mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
1931 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1932 kfree(mp);
1933 mempool_free(sparam_mbox, phba->mbox_mem_pool);
1934 goto out;
1935 }
1936 }
1937
1938 if (!(phba->hba_flag & HBA_FCOE_SUPPORT)) {
1939 cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1940 if (!cfglink_mbox)
1941 goto out;
1942 vport->port_state = LPFC_LOCAL_CFG_LINK;
1943 lpfc_config_link(phba, cfglink_mbox);
1944 cfglink_mbox->vport = vport;
1945 cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
1946 rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
1947 if (rc == MBX_NOT_FINISHED) {
1948 mempool_free(cfglink_mbox, phba->mbox_mem_pool);
1949 goto out;
1950 }
1951 } else {
1952 vport->port_state = LPFC_VPORT_UNKNOWN;
1953 /*
1954 * Add the driver's default FCF record at FCF index 0 now. This
1955 * is phase 1 implementation that support FCF index 0 and driver
1956 * defaults.
1957 */
1958 if (phba->cfg_enable_fip == 0) {
1959 fcf_record = kzalloc(sizeof(struct fcf_record),
1960 GFP_KERNEL);
1961 if (unlikely(!fcf_record)) {
1962 lpfc_printf_log(phba, KERN_ERR,
1963 LOG_MBOX | LOG_SLI,
1964 "2554 Could not allocate memmory for "
1965 "fcf record\n");
1966 rc = -ENODEV;
1967 goto out;
1968 }
1969
1970 lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
1971 LPFC_FCOE_FCF_DEF_INDEX);
1972 rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
1973 if (unlikely(rc)) {
1974 lpfc_printf_log(phba, KERN_ERR,
1975 LOG_MBOX | LOG_SLI,
1976 "2013 Could not manually add FCF "
1977 "record 0, status %d\n", rc);
1978 rc = -ENODEV;
1979 kfree(fcf_record);
1980 goto out;
1981 }
1982 kfree(fcf_record);
1983 }
1984 /*
1985 * The driver is expected to do FIP/FCF. Call the port
1986 * and get the FCF Table.
1987 */
1988 spin_lock_irq(&phba->hbalock);
1989 if (phba->hba_flag & FCF_DISC_INPROGRESS) {
1990 spin_unlock_irq(&phba->hbalock);
1991 return;
1992 }
1993 spin_unlock_irq(&phba->hbalock);
1994 rc = lpfc_sli4_read_fcf_record(phba,
1995 LPFC_FCOE_FCF_GET_FIRST);
1996 if (rc)
1997 goto out;
1998 }
1999
2000 return;
2001 out:
2002 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2003 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2004 "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
2005 vport->port_state, sparam_mbox, cfglink_mbox);
2006 lpfc_issue_clear_la(phba, vport);
2007 return;
2008 }
2009
2010 static void
2011 lpfc_enable_la(struct lpfc_hba *phba)
2012 {
2013 uint32_t control;
2014 struct lpfc_sli *psli = &phba->sli;
2015 spin_lock_irq(&phba->hbalock);
2016 psli->sli_flag |= LPFC_PROCESS_LA;
2017 if (phba->sli_rev <= LPFC_SLI_REV3) {
2018 control = readl(phba->HCregaddr);
2019 control |= HC_LAINT_ENA;
2020 writel(control, phba->HCregaddr);
2021 readl(phba->HCregaddr); /* flush */
2022 }
2023 spin_unlock_irq(&phba->hbalock);
2024 }
2025
2026 static void
2027 lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
2028 {
2029 lpfc_linkdown(phba);
2030 lpfc_enable_la(phba);
2031 lpfc_unregister_unused_fcf(phba);
2032 /* turn on Link Attention interrupts - no CLEAR_LA needed */
2033 }
2034
2035
2036 /*
2037 * This routine handles processing a READ_LA mailbox
2038 * command upon completion. It is setup in the LPFC_MBOXQ
2039 * as the completion routine when the command is
2040 * handed off to the SLI layer.
2041 */
2042 void
2043 lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2044 {
2045 struct lpfc_vport *vport = pmb->vport;
2046 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2047 READ_LA_VAR *la;
2048 MAILBOX_t *mb = &pmb->u.mb;
2049 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2050
2051 /* Unblock ELS traffic */
2052 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2053 /* Check for error */
2054 if (mb->mbxStatus) {
2055 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
2056 "1307 READ_LA mbox error x%x state x%x\n",
2057 mb->mbxStatus, vport->port_state);
2058 lpfc_mbx_issue_link_down(phba);
2059 phba->link_state = LPFC_HBA_ERROR;
2060 goto lpfc_mbx_cmpl_read_la_free_mbuf;
2061 }
2062
2063 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
2064
2065 memcpy(&phba->alpa_map[0], mp->virt, 128);
2066
2067 spin_lock_irq(shost->host_lock);
2068 if (la->pb)
2069 vport->fc_flag |= FC_BYPASSED_MODE;
2070 else
2071 vport->fc_flag &= ~FC_BYPASSED_MODE;
2072 spin_unlock_irq(shost->host_lock);
2073
2074 if ((phba->fc_eventTag < la->eventTag) ||
2075 (phba->fc_eventTag == la->eventTag)) {
2076 phba->fc_stat.LinkMultiEvent++;
2077 if (la->attType == AT_LINK_UP)
2078 if (phba->fc_eventTag != 0)
2079 lpfc_linkdown(phba);
2080 }
2081
2082 phba->fc_eventTag = la->eventTag;
2083 if (la->mm)
2084 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
2085 else
2086 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
2087
2088 if (la->attType == AT_LINK_UP && (!la->mm)) {
2089 phba->fc_stat.LinkUp++;
2090 if (phba->link_flag & LS_LOOPBACK_MODE) {
2091 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2092 "1306 Link Up Event in loop back mode "
2093 "x%x received Data: x%x x%x x%x x%x\n",
2094 la->eventTag, phba->fc_eventTag,
2095 la->granted_AL_PA, la->UlnkSpeed,
2096 phba->alpa_map[0]);
2097 } else {
2098 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2099 "1303 Link Up Event x%x received "
2100 "Data: x%x x%x x%x x%x x%x x%x %d\n",
2101 la->eventTag, phba->fc_eventTag,
2102 la->granted_AL_PA, la->UlnkSpeed,
2103 phba->alpa_map[0],
2104 la->mm, la->fa,
2105 phba->wait_4_mlo_maint_flg);
2106 }
2107 lpfc_mbx_process_link_up(phba, la);
2108 } else if (la->attType == AT_LINK_DOWN) {
2109 phba->fc_stat.LinkDown++;
2110 if (phba->link_flag & LS_LOOPBACK_MODE) {
2111 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2112 "1308 Link Down Event in loop back mode "
2113 "x%x received "
2114 "Data: x%x x%x x%x\n",
2115 la->eventTag, phba->fc_eventTag,
2116 phba->pport->port_state, vport->fc_flag);
2117 }
2118 else {
2119 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2120 "1305 Link Down Event x%x received "
2121 "Data: x%x x%x x%x x%x x%x\n",
2122 la->eventTag, phba->fc_eventTag,
2123 phba->pport->port_state, vport->fc_flag,
2124 la->mm, la->fa);
2125 }
2126 lpfc_mbx_issue_link_down(phba);
2127 }
2128 if (la->mm && la->attType == AT_LINK_UP) {
2129 if (phba->link_state != LPFC_LINK_DOWN) {
2130 phba->fc_stat.LinkDown++;
2131 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2132 "1312 Link Down Event x%x received "
2133 "Data: x%x x%x x%x\n",
2134 la->eventTag, phba->fc_eventTag,
2135 phba->pport->port_state, vport->fc_flag);
2136 lpfc_mbx_issue_link_down(phba);
2137 } else
2138 lpfc_enable_la(phba);
2139
2140 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
2141 "1310 Menlo Maint Mode Link up Event x%x rcvd "
2142 "Data: x%x x%x x%x\n",
2143 la->eventTag, phba->fc_eventTag,
2144 phba->pport->port_state, vport->fc_flag);
2145 /*
2146 * The cmnd that triggered this will be waiting for this
2147 * signal.
2148 */
2149 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
2150 if (phba->wait_4_mlo_maint_flg) {
2151 phba->wait_4_mlo_maint_flg = 0;
2152 wake_up_interruptible(&phba->wait_4_mlo_m_q);
2153 }
2154 }
2155
2156 if (la->fa) {
2157 if (la->mm)
2158 lpfc_issue_clear_la(phba, vport);
2159 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
2160 "1311 fa %d\n", la->fa);
2161 }
2162
2163 lpfc_mbx_cmpl_read_la_free_mbuf:
2164 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2165 kfree(mp);
2166 mempool_free(pmb, phba->mbox_mem_pool);
2167 return;
2168 }
2169
2170 /*
2171 * This routine handles processing a REG_LOGIN mailbox
2172 * command upon completion. It is setup in the LPFC_MBOXQ
2173 * as the completion routine when the command is
2174 * handed off to the SLI layer.
2175 */
2176 void
2177 lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2178 {
2179 struct lpfc_vport *vport = pmb->vport;
2180 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2181 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2182
2183 pmb->context1 = NULL;
2184
2185 /* Good status, call state machine */
2186 lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
2187 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2188 kfree(mp);
2189 mempool_free(pmb, phba->mbox_mem_pool);
2190 /* decrement the node reference count held for this callback
2191 * function.
2192 */
2193 lpfc_nlp_put(ndlp);
2194
2195 return;
2196 }
2197
2198 static void
2199 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2200 {
2201 MAILBOX_t *mb = &pmb->u.mb;
2202 struct lpfc_vport *vport = pmb->vport;
2203 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2204
2205 switch (mb->mbxStatus) {
2206 case 0x0011:
2207 case 0x0020:
2208 case 0x9700:
2209 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2210 "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
2211 mb->mbxStatus);
2212 break;
2213 }
2214 vport->unreg_vpi_cmpl = VPORT_OK;
2215 mempool_free(pmb, phba->mbox_mem_pool);
2216 /*
2217 * This shost reference might have been taken at the beginning of
2218 * lpfc_vport_delete()
2219 */
2220 if (vport->load_flag & FC_UNLOADING)
2221 scsi_host_put(shost);
2222 }
2223
2224 int
2225 lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
2226 {
2227 struct lpfc_hba *phba = vport->phba;
2228 LPFC_MBOXQ_t *mbox;
2229 int rc;
2230
2231 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2232 if (!mbox)
2233 return 1;
2234
2235 lpfc_unreg_vpi(phba, vport->vpi, mbox);
2236 mbox->vport = vport;
2237 mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
2238 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2239 if (rc == MBX_NOT_FINISHED) {
2240 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
2241 "1800 Could not issue unreg_vpi\n");
2242 mempool_free(mbox, phba->mbox_mem_pool);
2243 vport->unreg_vpi_cmpl = VPORT_ERROR;
2244 return rc;
2245 }
2246 return 0;
2247 }
2248
2249 static void
2250 lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2251 {
2252 struct lpfc_vport *vport = pmb->vport;
2253 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2254 MAILBOX_t *mb = &pmb->u.mb;
2255
2256 switch (mb->mbxStatus) {
2257 case 0x0011:
2258 case 0x9601:
2259 case 0x9602:
2260 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2261 "0912 cmpl_reg_vpi, mb status = 0x%x\n",
2262 mb->mbxStatus);
2263 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2264 spin_lock_irq(shost->host_lock);
2265 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2266 spin_unlock_irq(shost->host_lock);
2267 vport->fc_myDID = 0;
2268 goto out;
2269 }
2270
2271 vport->num_disc_nodes = 0;
2272 /* go thru NPR list and issue ELS PLOGIs */
2273 if (vport->fc_npr_cnt)
2274 lpfc_els_disc_plogi(vport);
2275
2276 if (!vport->num_disc_nodes) {
2277 spin_lock_irq(shost->host_lock);
2278 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2279 spin_unlock_irq(shost->host_lock);
2280 lpfc_can_disctmo(vport);
2281 }
2282 vport->port_state = LPFC_VPORT_READY;
2283
2284 out:
2285 mempool_free(pmb, phba->mbox_mem_pool);
2286 return;
2287 }
2288
2289 /**
2290 * lpfc_create_static_vport - Read HBA config region to create static vports.
2291 * @phba: pointer to lpfc hba data structure.
2292 *
2293 * This routine issue a DUMP mailbox command for config region 22 to get
2294 * the list of static vports to be created. The function create vports
2295 * based on the information returned from the HBA.
2296 **/
2297 void
2298 lpfc_create_static_vport(struct lpfc_hba *phba)
2299 {
2300 LPFC_MBOXQ_t *pmb = NULL;
2301 MAILBOX_t *mb;
2302 struct static_vport_info *vport_info;
2303 int rc = 0, i;
2304 struct fc_vport_identifiers vport_id;
2305 struct fc_vport *new_fc_vport;
2306 struct Scsi_Host *shost;
2307 struct lpfc_vport *vport;
2308 uint16_t offset = 0;
2309 uint8_t *vport_buff;
2310 struct lpfc_dmabuf *mp;
2311 uint32_t byte_count = 0;
2312
2313 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2314 if (!pmb) {
2315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2316 "0542 lpfc_create_static_vport failed to"
2317 " allocate mailbox memory\n");
2318 return;
2319 }
2320
2321 mb = &pmb->u.mb;
2322
2323 vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
2324 if (!vport_info) {
2325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2326 "0543 lpfc_create_static_vport failed to"
2327 " allocate vport_info\n");
2328 mempool_free(pmb, phba->mbox_mem_pool);
2329 return;
2330 }
2331
2332 vport_buff = (uint8_t *) vport_info;
2333 do {
2334 if (lpfc_dump_static_vport(phba, pmb, offset))
2335 goto out;
2336
2337 pmb->vport = phba->pport;
2338 rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO);
2339
2340 if ((rc != MBX_SUCCESS) || mb->mbxStatus) {
2341 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2342 "0544 lpfc_create_static_vport failed to"
2343 " issue dump mailbox command ret 0x%x "
2344 "status 0x%x\n",
2345 rc, mb->mbxStatus);
2346 goto out;
2347 }
2348
2349 if (phba->sli_rev == LPFC_SLI_REV4) {
2350 byte_count = pmb->u.mqe.un.mb_words[5];
2351 mp = (struct lpfc_dmabuf *) pmb->context2;
2352 if (byte_count > sizeof(struct static_vport_info) -
2353 offset)
2354 byte_count = sizeof(struct static_vport_info)
2355 - offset;
2356 memcpy(vport_buff + offset, mp->virt, byte_count);
2357 offset += byte_count;
2358 } else {
2359 if (mb->un.varDmp.word_cnt >
2360 sizeof(struct static_vport_info) - offset)
2361 mb->un.varDmp.word_cnt =
2362 sizeof(struct static_vport_info)
2363 - offset;
2364 byte_count = mb->un.varDmp.word_cnt;
2365 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
2366 vport_buff + offset,
2367 byte_count);
2368
2369 offset += byte_count;
2370 }
2371
2372 } while (byte_count &&
2373 offset < sizeof(struct static_vport_info));
2374
2375
2376 if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
2377 ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
2378 != VPORT_INFO_REV)) {
2379 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2380 "0545 lpfc_create_static_vport bad"
2381 " information header 0x%x 0x%x\n",
2382 le32_to_cpu(vport_info->signature),
2383 le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
2384
2385 goto out;
2386 }
2387
2388 shost = lpfc_shost_from_vport(phba->pport);
2389
2390 for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
2391 memset(&vport_id, 0, sizeof(vport_id));
2392 vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
2393 vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
2394 if (!vport_id.port_name || !vport_id.node_name)
2395 continue;
2396
2397 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
2398 vport_id.vport_type = FC_PORTTYPE_NPIV;
2399 vport_id.disable = false;
2400 new_fc_vport = fc_vport_create(shost, 0, &vport_id);
2401
2402 if (!new_fc_vport) {
2403 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2404 "0546 lpfc_create_static_vport failed to"
2405 " create vport\n");
2406 continue;
2407 }
2408
2409 vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
2410 vport->vport_flag |= STATIC_VPORT;
2411 }
2412
2413 out:
2414 kfree(vport_info);
2415 if (rc != MBX_TIMEOUT) {
2416 if (pmb->context2) {
2417 mp = (struct lpfc_dmabuf *) pmb->context2;
2418 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2419 kfree(mp);
2420 }
2421 mempool_free(pmb, phba->mbox_mem_pool);
2422 }
2423
2424 return;
2425 }
2426
2427 /*
2428 * This routine handles processing a Fabric REG_LOGIN mailbox
2429 * command upon completion. It is setup in the LPFC_MBOXQ
2430 * as the completion routine when the command is
2431 * handed off to the SLI layer.
2432 */
2433 void
2434 lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2435 {
2436 struct lpfc_vport *vport = pmb->vport;
2437 MAILBOX_t *mb = &pmb->u.mb;
2438 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2439 struct lpfc_nodelist *ndlp;
2440
2441 ndlp = (struct lpfc_nodelist *) pmb->context2;
2442 pmb->context1 = NULL;
2443 pmb->context2 = NULL;
2444 if (mb->mbxStatus) {
2445 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
2446 "0258 Register Fabric login error: 0x%x\n",
2447 mb->mbxStatus);
2448 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2449 kfree(mp);
2450 mempool_free(pmb, phba->mbox_mem_pool);
2451
2452 if (phba->fc_topology == TOPOLOGY_LOOP) {
2453 /* FLOGI failed, use loop map to make discovery list */
2454 lpfc_disc_list_loopmap(vport);
2455
2456 /* Start discovery */
2457 lpfc_disc_start(vport);
2458 /* Decrement the reference count to ndlp after the
2459 * reference to the ndlp are done.
2460 */
2461 lpfc_nlp_put(ndlp);
2462 return;
2463 }
2464
2465 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2466 /* Decrement the reference count to ndlp after the reference
2467 * to the ndlp are done.
2468 */
2469 lpfc_nlp_put(ndlp);
2470 return;
2471 }
2472
2473 ndlp->nlp_rpi = mb->un.varWords[0];
2474 ndlp->nlp_flag |= NLP_RPI_VALID;
2475 ndlp->nlp_type |= NLP_FABRIC;
2476 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2477
2478 if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
2479 lpfc_start_fdiscs(phba);
2480 lpfc_do_scr_ns_plogi(phba, vport);
2481 }
2482
2483 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2484 kfree(mp);
2485 mempool_free(pmb, phba->mbox_mem_pool);
2486
2487 /* Drop the reference count from the mbox at the end after
2488 * all the current reference to the ndlp have been done.
2489 */
2490 lpfc_nlp_put(ndlp);
2491 return;
2492 }
2493
2494 /*
2495 * This routine handles processing a NameServer REG_LOGIN mailbox
2496 * command upon completion. It is setup in the LPFC_MBOXQ
2497 * as the completion routine when the command is
2498 * handed off to the SLI layer.
2499 */
2500 void
2501 lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2502 {
2503 MAILBOX_t *mb = &pmb->u.mb;
2504 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
2505 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
2506 struct lpfc_vport *vport = pmb->vport;
2507
2508 if (mb->mbxStatus) {
2509 out:
2510 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2511 "0260 Register NameServer error: 0x%x\n",
2512 mb->mbxStatus);
2513 /* decrement the node reference count held for this
2514 * callback function.
2515 */
2516 lpfc_nlp_put(ndlp);
2517 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2518 kfree(mp);
2519 mempool_free(pmb, phba->mbox_mem_pool);
2520
2521 /* If no other thread is using the ndlp, free it */
2522 lpfc_nlp_not_used(ndlp);
2523
2524 if (phba->fc_topology == TOPOLOGY_LOOP) {
2525 /*
2526 * RegLogin failed, use loop map to make discovery
2527 * list
2528 */
2529 lpfc_disc_list_loopmap(vport);
2530
2531 /* Start discovery */
2532 lpfc_disc_start(vport);
2533 return;
2534 }
2535 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
2536 return;
2537 }
2538
2539 pmb->context1 = NULL;
2540
2541 ndlp->nlp_rpi = mb->un.varWords[0];
2542 ndlp->nlp_flag |= NLP_RPI_VALID;
2543 ndlp->nlp_type |= NLP_FABRIC;
2544 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2545
2546 if (vport->port_state < LPFC_VPORT_READY) {
2547 /* Link up discovery requires Fabric registration. */
2548 lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
2549 lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
2550 lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
2551 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
2552 lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
2553
2554 /* Issue SCR just before NameServer GID_FT Query */
2555 lpfc_issue_els_scr(vport, SCR_DID, 0);
2556 }
2557
2558 vport->fc_ns_retry = 0;
2559 /* Good status, issue CT Request to NameServer */
2560 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
2561 /* Cannot issue NameServer Query, so finish up discovery */
2562 goto out;
2563 }
2564
2565 /* decrement the node reference count held for this
2566 * callback function.
2567 */
2568 lpfc_nlp_put(ndlp);
2569 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2570 kfree(mp);
2571 mempool_free(pmb, phba->mbox_mem_pool);
2572
2573 return;
2574 }
2575
2576 static void
2577 lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2578 {
2579 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2580 struct fc_rport *rport;
2581 struct lpfc_rport_data *rdata;
2582 struct fc_rport_identifiers rport_ids;
2583 struct lpfc_hba *phba = vport->phba;
2584
2585 /* Remote port has reappeared. Re-register w/ FC transport */
2586 rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
2587 rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
2588 rport_ids.port_id = ndlp->nlp_DID;
2589 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2590
2591 /*
2592 * We leave our node pointer in rport->dd_data when we unregister a
2593 * FCP target port. But fc_remote_port_add zeros the space to which
2594 * rport->dd_data points. So, if we're reusing a previously
2595 * registered port, drop the reference that we took the last time we
2596 * registered the port.
2597 */
2598 if (ndlp->rport && ndlp->rport->dd_data &&
2599 ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
2600 lpfc_nlp_put(ndlp);
2601
2602 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
2603 "rport add: did:x%x flg:x%x type x%x",
2604 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
2605
2606 ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
2607 if (!rport || !get_device(&rport->dev)) {
2608 dev_printk(KERN_WARNING, &phba->pcidev->dev,
2609 "Warning: fc_remote_port_add failed\n");
2610 return;
2611 }
2612
2613 /* initialize static port data */
2614 rport->maxframe_size = ndlp->nlp_maxframe;
2615 rport->supported_classes = ndlp->nlp_class_sup;
2616 rdata = rport->dd_data;
2617 rdata->pnode = lpfc_nlp_get(ndlp);
2618
2619 if (ndlp->nlp_type & NLP_FCP_TARGET)
2620 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2621 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
2622 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2623
2624
2625 if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
2626 fc_remote_port_rolechg(rport, rport_ids.roles);
2627
2628 if ((rport->scsi_target_id != -1) &&
2629 (rport->scsi_target_id < LPFC_MAX_TARGET)) {
2630 ndlp->nlp_sid = rport->scsi_target_id;
2631 }
2632 return;
2633 }
2634
2635 static void
2636 lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
2637 {
2638 struct fc_rport *rport = ndlp->rport;
2639
2640 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
2641 "rport delete: did:x%x flg:x%x type x%x",
2642 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
2643
2644 fc_remote_port_delete(rport);
2645
2646 return;
2647 }
2648
2649 static void
2650 lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
2651 {
2652 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2653
2654 spin_lock_irq(shost->host_lock);
2655 switch (state) {
2656 case NLP_STE_UNUSED_NODE:
2657 vport->fc_unused_cnt += count;
2658 break;
2659 case NLP_STE_PLOGI_ISSUE:
2660 vport->fc_plogi_cnt += count;
2661 break;
2662 case NLP_STE_ADISC_ISSUE:
2663 vport->fc_adisc_cnt += count;
2664 break;
2665 case NLP_STE_REG_LOGIN_ISSUE:
2666 vport->fc_reglogin_cnt += count;
2667 break;
2668 case NLP_STE_PRLI_ISSUE:
2669 vport->fc_prli_cnt += count;
2670 break;
2671 case NLP_STE_UNMAPPED_NODE:
2672 vport->fc_unmap_cnt += count;
2673 break;
2674 case NLP_STE_MAPPED_NODE:
2675 vport->fc_map_cnt += count;
2676 break;
2677 case NLP_STE_NPR_NODE:
2678 vport->fc_npr_cnt += count;
2679 break;
2680 }
2681 spin_unlock_irq(shost->host_lock);
2682 }
2683
2684 static void
2685 lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2686 int old_state, int new_state)
2687 {
2688 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2689
2690 if (new_state == NLP_STE_UNMAPPED_NODE) {
2691 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
2692 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
2693 ndlp->nlp_type |= NLP_FC_NODE;
2694 }
2695 if (new_state == NLP_STE_MAPPED_NODE)
2696 ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
2697 if (new_state == NLP_STE_NPR_NODE)
2698 ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
2699
2700 /* Transport interface */
2701 if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
2702 old_state == NLP_STE_UNMAPPED_NODE)) {
2703 vport->phba->nport_event_cnt++;
2704 lpfc_unregister_remote_port(ndlp);
2705 }
2706
2707 if (new_state == NLP_STE_MAPPED_NODE ||
2708 new_state == NLP_STE_UNMAPPED_NODE) {
2709 vport->phba->nport_event_cnt++;
2710 /*
2711 * Tell the fc transport about the port, if we haven't
2712 * already. If we have, and it's a scsi entity, be
2713 * sure to unblock any attached scsi devices
2714 */
2715 lpfc_register_remote_port(vport, ndlp);
2716 }
2717 if ((new_state == NLP_STE_MAPPED_NODE) &&
2718 (vport->stat_data_enabled)) {
2719 /*
2720 * A new target is discovered, if there is no buffer for
2721 * statistical data collection allocate buffer.
2722 */
2723 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
2724 sizeof(struct lpfc_scsicmd_bkt),
2725 GFP_KERNEL);
2726
2727 if (!ndlp->lat_data)
2728 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
2729 "0286 lpfc_nlp_state_cleanup failed to "
2730 "allocate statistical data buffer DID "
2731 "0x%x\n", ndlp->nlp_DID);
2732 }
2733 /*
2734 * if we added to Mapped list, but the remote port
2735 * registration failed or assigned a target id outside
2736 * our presentable range - move the node to the
2737 * Unmapped List
2738 */
2739 if (new_state == NLP_STE_MAPPED_NODE &&
2740 (!ndlp->rport ||
2741 ndlp->rport->scsi_target_id == -1 ||
2742 ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
2743 spin_lock_irq(shost->host_lock);
2744 ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
2745 spin_unlock_irq(shost->host_lock);
2746 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2747 }
2748 }
2749
2750 static char *
2751 lpfc_nlp_state_name(char *buffer, size_t size, int state)
2752 {
2753 static char *states[] = {
2754 [NLP_STE_UNUSED_NODE] = "UNUSED",
2755 [NLP_STE_PLOGI_ISSUE] = "PLOGI",
2756 [NLP_STE_ADISC_ISSUE] = "ADISC",
2757 [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
2758 [NLP_STE_PRLI_ISSUE] = "PRLI",
2759 [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
2760 [NLP_STE_MAPPED_NODE] = "MAPPED",
2761 [NLP_STE_NPR_NODE] = "NPR",
2762 };
2763
2764 if (state < NLP_STE_MAX_STATE && states[state])
2765 strlcpy(buffer, states[state], size);
2766 else
2767 snprintf(buffer, size, "unknown (%d)", state);
2768 return buffer;
2769 }
2770
2771 void
2772 lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2773 int state)
2774 {
2775 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2776 int old_state = ndlp->nlp_state;
2777 char name1[16], name2[16];
2778
2779 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
2780 "0904 NPort state transition x%06x, %s -> %s\n",
2781 ndlp->nlp_DID,
2782 lpfc_nlp_state_name(name1, sizeof(name1), old_state),
2783 lpfc_nlp_state_name(name2, sizeof(name2), state));
2784
2785 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2786 "node statechg did:x%x old:%d ste:%d",
2787 ndlp->nlp_DID, old_state, state);
2788
2789 if (old_state == NLP_STE_NPR_NODE &&
2790 state != NLP_STE_NPR_NODE)
2791 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2792 if (old_state == NLP_STE_UNMAPPED_NODE) {
2793 ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
2794 ndlp->nlp_type &= ~NLP_FC_NODE;
2795 }
2796
2797 if (list_empty(&ndlp->nlp_listp)) {
2798 spin_lock_irq(shost->host_lock);
2799 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
2800 spin_unlock_irq(shost->host_lock);
2801 } else if (old_state)
2802 lpfc_nlp_counters(vport, old_state, -1);
2803
2804 ndlp->nlp_state = state;
2805 lpfc_nlp_counters(vport, state, 1);
2806 lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
2807 }
2808
2809 void
2810 lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2811 {
2812 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2813
2814 if (list_empty(&ndlp->nlp_listp)) {
2815 spin_lock_irq(shost->host_lock);
2816 list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
2817 spin_unlock_irq(shost->host_lock);
2818 }
2819 }
2820
2821 void
2822 lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2823 {
2824 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2825
2826 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2827 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2828 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
2829 spin_lock_irq(shost->host_lock);
2830 list_del_init(&ndlp->nlp_listp);
2831 spin_unlock_irq(shost->host_lock);
2832 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
2833 NLP_STE_UNUSED_NODE);
2834 }
2835
2836 static void
2837 lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2838 {
2839 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2840 if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
2841 lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
2842 lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
2843 NLP_STE_UNUSED_NODE);
2844 }
2845 /**
2846 * lpfc_initialize_node - Initialize all fields of node object
2847 * @vport: Pointer to Virtual Port object.
2848 * @ndlp: Pointer to FC node object.
2849 * @did: FC_ID of the node.
2850 *
2851 * This function is always called when node object need to be initialized.
2852 * It initializes all the fields of the node object. Although the reference
2853 * to phba from @ndlp can be obtained indirectly through it's reference to
2854 * @vport, a direct reference to phba is taken here by @ndlp. This is due
2855 * to the life-span of the @ndlp might go beyond the existence of @vport as
2856 * the final release of ndlp is determined by its reference count. And, the
2857 * operation on @ndlp needs the reference to phba.
2858 **/
2859 static inline void
2860 lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2861 uint32_t did)
2862 {
2863 INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
2864 INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
2865 init_timer(&ndlp->nlp_delayfunc);
2866 ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
2867 ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
2868 ndlp->nlp_DID = did;
2869 ndlp->vport = vport;
2870 ndlp->phba = vport->phba;
2871 ndlp->nlp_sid = NLP_NO_SID;
2872 kref_init(&ndlp->kref);
2873 NLP_INT_NODE_ACT(ndlp);
2874 atomic_set(&ndlp->cmd_pending, 0);
2875 ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH;
2876 }
2877
2878 struct lpfc_nodelist *
2879 lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2880 int state)
2881 {
2882 struct lpfc_hba *phba = vport->phba;
2883 uint32_t did;
2884 unsigned long flags;
2885
2886 if (!ndlp)
2887 return NULL;
2888
2889 spin_lock_irqsave(&phba->ndlp_lock, flags);
2890 /* The ndlp should not be in memory free mode */
2891 if (NLP_CHK_FREE_REQ(ndlp)) {
2892 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2893 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2894 "0277 lpfc_enable_node: ndlp:x%p "
2895 "usgmap:x%x refcnt:%d\n",
2896 (void *)ndlp, ndlp->nlp_usg_map,
2897 atomic_read(&ndlp->kref.refcount));
2898 return NULL;
2899 }
2900 /* The ndlp should not already be in active mode */
2901 if (NLP_CHK_NODE_ACT(ndlp)) {
2902 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2903 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
2904 "0278 lpfc_enable_node: ndlp:x%p "
2905 "usgmap:x%x refcnt:%d\n",
2906 (void *)ndlp, ndlp->nlp_usg_map,
2907 atomic_read(&ndlp->kref.refcount));
2908 return NULL;
2909 }
2910
2911 /* Keep the original DID */
2912 did = ndlp->nlp_DID;
2913
2914 /* re-initialize ndlp except of ndlp linked list pointer */
2915 memset((((char *)ndlp) + sizeof (struct list_head)), 0,
2916 sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
2917 lpfc_initialize_node(vport, ndlp, did);
2918
2919 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2920
2921 if (state != NLP_STE_UNUSED_NODE)
2922 lpfc_nlp_set_state(vport, ndlp, state);
2923
2924 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2925 "node enable: did:x%x",
2926 ndlp->nlp_DID, 0, 0);
2927 return ndlp;
2928 }
2929
2930 void
2931 lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2932 {
2933 /*
2934 * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
2935 * be used if we wish to issue the "last" lpfc_nlp_put() to remove
2936 * the ndlp from the vport. The ndlp marked as UNUSED on the list
2937 * until ALL other outstanding threads have completed. We check
2938 * that the ndlp not already in the UNUSED state before we proceed.
2939 */
2940 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2941 return;
2942 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
2943 lpfc_nlp_put(ndlp);
2944 return;
2945 }
2946
2947 /*
2948 * Start / ReStart rescue timer for Discovery / RSCN handling
2949 */
2950 void
2951 lpfc_set_disctmo(struct lpfc_vport *vport)
2952 {
2953 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2954 struct lpfc_hba *phba = vport->phba;
2955 uint32_t tmo;
2956
2957 if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
2958 /* For FAN, timeout should be greater than edtov */
2959 tmo = (((phba->fc_edtov + 999) / 1000) + 1);
2960 } else {
2961 /* Normal discovery timeout should be > than ELS/CT timeout
2962 * FC spec states we need 3 * ratov for CT requests
2963 */
2964 tmo = ((phba->fc_ratov * 3) + 3);
2965 }
2966
2967
2968 if (!timer_pending(&vport->fc_disctmo)) {
2969 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2970 "set disc timer: tmo:x%x state:x%x flg:x%x",
2971 tmo, vport->port_state, vport->fc_flag);
2972 }
2973
2974 mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
2975 spin_lock_irq(shost->host_lock);
2976 vport->fc_flag |= FC_DISC_TMO;
2977 spin_unlock_irq(shost->host_lock);
2978
2979 /* Start Discovery Timer state <hba_state> */
2980 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2981 "0247 Start Discovery Timer state x%x "
2982 "Data: x%x x%lx x%x x%x\n",
2983 vport->port_state, tmo,
2984 (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
2985 vport->fc_adisc_cnt);
2986
2987 return;
2988 }
2989
2990 /*
2991 * Cancel rescue timer for Discovery / RSCN handling
2992 */
2993 int
2994 lpfc_can_disctmo(struct lpfc_vport *vport)
2995 {
2996 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2997 unsigned long iflags;
2998
2999 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3000 "can disc timer: state:x%x rtry:x%x flg:x%x",
3001 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
3002
3003 /* Turn off discovery timer if its running */
3004 if (vport->fc_flag & FC_DISC_TMO) {
3005 spin_lock_irqsave(shost->host_lock, iflags);
3006 vport->fc_flag &= ~FC_DISC_TMO;
3007 spin_unlock_irqrestore(shost->host_lock, iflags);
3008 del_timer_sync(&vport->fc_disctmo);
3009 spin_lock_irqsave(&vport->work_port_lock, iflags);
3010 vport->work_port_events &= ~WORKER_DISC_TMO;
3011 spin_unlock_irqrestore(&vport->work_port_lock, iflags);
3012 }
3013
3014 /* Cancel Discovery Timer state <hba_state> */
3015 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3016 "0248 Cancel Discovery Timer state x%x "
3017 "Data: x%x x%x x%x\n",
3018 vport->port_state, vport->fc_flag,
3019 vport->fc_plogi_cnt, vport->fc_adisc_cnt);
3020 return 0;
3021 }
3022
3023 /*
3024 * Check specified ring for outstanding IOCB on the SLI queue
3025 * Return true if iocb matches the specified nport
3026 */
3027 int
3028 lpfc_check_sli_ndlp(struct lpfc_hba *phba,
3029 struct lpfc_sli_ring *pring,
3030 struct lpfc_iocbq *iocb,
3031 struct lpfc_nodelist *ndlp)
3032 {
3033 struct lpfc_sli *psli = &phba->sli;
3034 IOCB_t *icmd = &iocb->iocb;
3035 struct lpfc_vport *vport = ndlp->vport;
3036
3037 if (iocb->vport != vport)
3038 return 0;
3039
3040 if (pring->ringno == LPFC_ELS_RING) {
3041 switch (icmd->ulpCommand) {
3042 case CMD_GEN_REQUEST64_CR:
3043 if (iocb->context_un.ndlp == ndlp)
3044 return 1;
3045 case CMD_ELS_REQUEST64_CR:
3046 if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
3047 return 1;
3048 case CMD_XMIT_ELS_RSP64_CX:
3049 if (iocb->context1 == (uint8_t *) ndlp)
3050 return 1;
3051 }
3052 } else if (pring->ringno == psli->extra_ring) {
3053
3054 } else if (pring->ringno == psli->fcp_ring) {
3055 /* Skip match check if waiting to relogin to FCP target */
3056 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
3057 (ndlp->nlp_flag & NLP_DELAY_TMO)) {
3058 return 0;
3059 }
3060 if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
3061 return 1;
3062 }
3063 } else if (pring->ringno == psli->next_ring) {
3064
3065 }
3066 return 0;
3067 }
3068
3069 /*
3070 * Free resources / clean up outstanding I/Os
3071 * associated with nlp_rpi in the LPFC_NODELIST entry.
3072 */
3073 static int
3074 lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
3075 {
3076 LIST_HEAD(completions);
3077 struct lpfc_sli *psli;
3078 struct lpfc_sli_ring *pring;
3079 struct lpfc_iocbq *iocb, *next_iocb;
3080 uint32_t rpi, i;
3081
3082 lpfc_fabric_abort_nport(ndlp);
3083
3084 /*
3085 * Everything that matches on txcmplq will be returned
3086 * by firmware with a no rpi error.
3087 */
3088 psli = &phba->sli;
3089 rpi = ndlp->nlp_rpi;
3090 if (ndlp->nlp_flag & NLP_RPI_VALID) {
3091 /* Now process each ring */
3092 for (i = 0; i < psli->num_rings; i++) {
3093 pring = &psli->ring[i];
3094
3095 spin_lock_irq(&phba->hbalock);
3096 list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
3097 list) {
3098 /*
3099 * Check to see if iocb matches the nport we are
3100 * looking for
3101 */
3102 if ((lpfc_check_sli_ndlp(phba, pring, iocb,
3103 ndlp))) {
3104 /* It matches, so deque and call compl
3105 with an error */
3106 list_move_tail(&iocb->list,
3107 &completions);
3108 pring->txq_cnt--;
3109 }
3110 }
3111 spin_unlock_irq(&phba->hbalock);
3112 }
3113 }
3114
3115 /* Cancel all the IOCBs from the completions list */
3116 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3117 IOERR_SLI_ABORTED);
3118
3119 return 0;
3120 }
3121
3122 /*
3123 * Free rpi associated with LPFC_NODELIST entry.
3124 * This routine is called from lpfc_freenode(), when we are removing
3125 * a LPFC_NODELIST entry. It is also called if the driver initiates a
3126 * LOGO that completes successfully, and we are waiting to PLOGI back
3127 * to the remote NPort. In addition, it is called after we receive
3128 * and unsolicated ELS cmd, send back a rsp, the rsp completes and
3129 * we are waiting to PLOGI back to the remote NPort.
3130 */
3131 int
3132 lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3133 {
3134 struct lpfc_hba *phba = vport->phba;
3135 LPFC_MBOXQ_t *mbox;
3136 int rc;
3137
3138 if (ndlp->nlp_flag & NLP_RPI_VALID) {
3139 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3140 if (mbox) {
3141 lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
3142 mbox->vport = vport;
3143 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3144 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3145 if (rc == MBX_NOT_FINISHED)
3146 mempool_free(mbox, phba->mbox_mem_pool);
3147 }
3148 lpfc_no_rpi(phba, ndlp);
3149 ndlp->nlp_rpi = 0;
3150 ndlp->nlp_flag &= ~NLP_RPI_VALID;
3151 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3152 return 1;
3153 }
3154 return 0;
3155 }
3156
3157 void
3158 lpfc_unreg_all_rpis(struct lpfc_vport *vport)
3159 {
3160 struct lpfc_hba *phba = vport->phba;
3161 LPFC_MBOXQ_t *mbox;
3162 int rc;
3163
3164 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3165 if (mbox) {
3166 lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
3167 mbox->vport = vport;
3168 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3169 mbox->context1 = NULL;
3170 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
3171 if (rc != MBX_TIMEOUT)
3172 mempool_free(mbox, phba->mbox_mem_pool);
3173
3174 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
3175 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3176 "1836 Could not issue "
3177 "unreg_login(all_rpis) status %d\n", rc);
3178 }
3179 }
3180
3181 void
3182 lpfc_unreg_default_rpis(struct lpfc_vport *vport)
3183 {
3184 struct lpfc_hba *phba = vport->phba;
3185 LPFC_MBOXQ_t *mbox;
3186 int rc;
3187
3188 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3189 if (mbox) {
3190 lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
3191 mbox->vport = vport;
3192 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3193 mbox->context1 = NULL;
3194 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
3195 if (rc != MBX_TIMEOUT)
3196 mempool_free(mbox, phba->mbox_mem_pool);
3197
3198 if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
3199 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
3200 "1815 Could not issue "
3201 "unreg_did (default rpis) status %d\n",
3202 rc);
3203 }
3204 }
3205
3206 /*
3207 * Free resources associated with LPFC_NODELIST entry
3208 * so it can be freed.
3209 */
3210 static int
3211 lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3212 {
3213 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3214 struct lpfc_hba *phba = vport->phba;
3215 LPFC_MBOXQ_t *mb, *nextmb;
3216 struct lpfc_dmabuf *mp;
3217
3218 /* Cleanup node for NPort <nlp_DID> */
3219 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3220 "0900 Cleanup node for NPort x%x "
3221 "Data: x%x x%x x%x\n",
3222 ndlp->nlp_DID, ndlp->nlp_flag,
3223 ndlp->nlp_state, ndlp->nlp_rpi);
3224 if (NLP_CHK_FREE_REQ(ndlp)) {
3225 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3226 "0280 lpfc_cleanup_node: ndlp:x%p "
3227 "usgmap:x%x refcnt:%d\n",
3228 (void *)ndlp, ndlp->nlp_usg_map,
3229 atomic_read(&ndlp->kref.refcount));
3230 lpfc_dequeue_node(vport, ndlp);
3231 } else {
3232 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
3233 "0281 lpfc_cleanup_node: ndlp:x%p "
3234 "usgmap:x%x refcnt:%d\n",
3235 (void *)ndlp, ndlp->nlp_usg_map,
3236 atomic_read(&ndlp->kref.refcount));
3237 lpfc_disable_node(vport, ndlp);
3238 }
3239
3240 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
3241 if ((mb = phba->sli.mbox_active)) {
3242 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
3243 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
3244 mb->context2 = NULL;
3245 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3246 }
3247 }
3248
3249 spin_lock_irq(&phba->hbalock);
3250 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
3251 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
3252 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
3253 mp = (struct lpfc_dmabuf *) (mb->context1);
3254 if (mp) {
3255 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
3256 kfree(mp);
3257 }
3258 list_del(&mb->list);
3259 mempool_free(mb, phba->mbox_mem_pool);
3260 /* We shall not invoke the lpfc_nlp_put to decrement
3261 * the ndlp reference count as we are in the process
3262 * of lpfc_nlp_release.
3263 */
3264 }
3265 }
3266 spin_unlock_irq(&phba->hbalock);
3267
3268 lpfc_els_abort(phba, ndlp);
3269
3270 spin_lock_irq(shost->host_lock);
3271 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
3272 spin_unlock_irq(shost->host_lock);
3273
3274 ndlp->nlp_last_elscmd = 0;
3275 del_timer_sync(&ndlp->nlp_delayfunc);
3276
3277 list_del_init(&ndlp->els_retry_evt.evt_listp);
3278 list_del_init(&ndlp->dev_loss_evt.evt_listp);
3279
3280 lpfc_unreg_rpi(vport, ndlp);
3281
3282 return 0;
3283 }
3284
3285 /*
3286 * Check to see if we can free the nlp back to the freelist.
3287 * If we are in the middle of using the nlp in the discovery state
3288 * machine, defer the free till we reach the end of the state machine.
3289 */
3290 static void
3291 lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
3292 {
3293 struct lpfc_hba *phba = vport->phba;
3294 struct lpfc_rport_data *rdata;
3295 LPFC_MBOXQ_t *mbox;
3296 int rc;
3297
3298 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3299 if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
3300 !(ndlp->nlp_flag & NLP_RPI_VALID)) {
3301 /* For this case we need to cleanup the default rpi
3302 * allocated by the firmware.
3303 */
3304 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
3305 != NULL) {
3306 rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
3307 (uint8_t *) &vport->fc_sparam, mbox, 0);
3308 if (rc) {
3309 mempool_free(mbox, phba->mbox_mem_pool);
3310 }
3311 else {
3312 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
3313 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
3314 mbox->vport = vport;
3315 mbox->context2 = NULL;
3316 rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3317 if (rc == MBX_NOT_FINISHED) {
3318 mempool_free(mbox, phba->mbox_mem_pool);
3319 }
3320 }
3321 }
3322 }
3323 lpfc_cleanup_node(vport, ndlp);
3324
3325 /*
3326 * We can get here with a non-NULL ndlp->rport because when we
3327 * unregister a rport we don't break the rport/node linkage. So if we
3328 * do, make sure we don't leaving any dangling pointers behind.
3329 */
3330 if (ndlp->rport) {
3331 rdata = ndlp->rport->dd_data;
3332 rdata->pnode = NULL;
3333 ndlp->rport = NULL;
3334 }
3335 }
3336
3337 static int
3338 lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
3339 uint32_t did)
3340 {
3341 D_ID mydid, ndlpdid, matchdid;
3342
3343 if (did == Bcast_DID)
3344 return 0;
3345
3346 /* First check for Direct match */
3347 if (ndlp->nlp_DID == did)
3348 return 1;
3349
3350 /* Next check for area/domain identically equals 0 match */
3351 mydid.un.word = vport->fc_myDID;
3352 if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
3353 return 0;
3354 }
3355
3356 matchdid.un.word = did;
3357 ndlpdid.un.word = ndlp->nlp_DID;
3358 if (matchdid.un.b.id == ndlpdid.un.b.id) {
3359 if ((mydid.un.b.domain == matchdid.un.b.domain) &&
3360 (mydid.un.b.area == matchdid.un.b.area)) {
3361 if ((ndlpdid.un.b.domain == 0) &&
3362 (ndlpdid.un.b.area == 0)) {
3363 if (ndlpdid.un.b.id)
3364 return 1;
3365 }
3366 return 0;
3367 }
3368
3369 matchdid.un.word = ndlp->nlp_DID;
3370 if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
3371 (mydid.un.b.area == ndlpdid.un.b.area)) {
3372 if ((matchdid.un.b.domain == 0) &&
3373 (matchdid.un.b.area == 0)) {
3374 if (matchdid.un.b.id)
3375 return 1;
3376 }
3377 }
3378 }
3379 return 0;
3380 }
3381
3382 /* Search for a nodelist entry */
3383 static struct lpfc_nodelist *
3384 __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
3385 {
3386 struct lpfc_nodelist *ndlp;
3387 uint32_t data1;
3388
3389 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
3390 if (lpfc_matchdid(vport, ndlp, did)) {
3391 data1 = (((uint32_t) ndlp->nlp_state << 24) |
3392 ((uint32_t) ndlp->nlp_xri << 16) |
3393 ((uint32_t) ndlp->nlp_type << 8) |
3394 ((uint32_t) ndlp->nlp_rpi & 0xff));
3395 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3396 "0929 FIND node DID "
3397 "Data: x%p x%x x%x x%x\n",
3398 ndlp, ndlp->nlp_DID,
3399 ndlp->nlp_flag, data1);
3400 return ndlp;
3401 }
3402 }
3403
3404 /* FIND node did <did> NOT FOUND */
3405 lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
3406 "0932 FIND node did x%x NOT FOUND.\n", did);
3407 return NULL;
3408 }
3409
3410 struct lpfc_nodelist *
3411 lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
3412 {
3413 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3414 struct lpfc_nodelist *ndlp;
3415
3416 spin_lock_irq(shost->host_lock);
3417 ndlp = __lpfc_findnode_did(vport, did);
3418 spin_unlock_irq(shost->host_lock);
3419 return ndlp;
3420 }
3421
3422 struct lpfc_nodelist *
3423 lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
3424 {
3425 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3426 struct lpfc_nodelist *ndlp;
3427
3428 ndlp = lpfc_findnode_did(vport, did);
3429 if (!ndlp) {
3430 if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
3431 lpfc_rscn_payload_check(vport, did) == 0)
3432 return NULL;
3433 ndlp = (struct lpfc_nodelist *)
3434 mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
3435 if (!ndlp)
3436 return NULL;
3437 lpfc_nlp_init(vport, ndlp, did);
3438 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
3439 spin_lock_irq(shost->host_lock);
3440 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3441 spin_unlock_irq(shost->host_lock);
3442 return ndlp;
3443 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3444 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
3445 if (!ndlp)
3446 return NULL;
3447 spin_lock_irq(shost->host_lock);
3448 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3449 spin_unlock_irq(shost->host_lock);
3450 return ndlp;
3451 }
3452
3453 if ((vport->fc_flag & FC_RSCN_MODE) &&
3454 !(vport->fc_flag & FC_NDISC_ACTIVE)) {
3455 if (lpfc_rscn_payload_check(vport, did)) {
3456 /* If we've already recieved a PLOGI from this NPort
3457 * we don't need to try to discover it again.
3458 */
3459 if (ndlp->nlp_flag & NLP_RCV_PLOGI)
3460 return NULL;
3461
3462 /* Since this node is marked for discovery,
3463 * delay timeout is not needed.
3464 */
3465 lpfc_cancel_retry_delay_tmo(vport, ndlp);
3466 spin_lock_irq(shost->host_lock);
3467 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3468 spin_unlock_irq(shost->host_lock);
3469 } else
3470 ndlp = NULL;
3471 } else {
3472 /* If we've already recieved a PLOGI from this NPort,
3473 * or we are already in the process of discovery on it,
3474 * we don't need to try to discover it again.
3475 */
3476 if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
3477 ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
3478 ndlp->nlp_flag & NLP_RCV_PLOGI)
3479 return NULL;
3480 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
3481 spin_lock_irq(shost->host_lock);
3482 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
3483 spin_unlock_irq(shost->host_lock);
3484 }
3485 return ndlp;
3486 }
3487
3488 /* Build a list of nodes to discover based on the loopmap */
3489 void
3490 lpfc_disc_list_loopmap(struct lpfc_vport *vport)
3491 {
3492 struct lpfc_hba *phba = vport->phba;
3493 int j;
3494 uint32_t alpa, index;
3495
3496 if (!lpfc_is_link_up(phba))
3497 return;
3498
3499 if (phba->fc_topology != TOPOLOGY_LOOP)
3500 return;
3501
3502 /* Check for loop map present or not */
3503 if (phba->alpa_map[0]) {
3504 for (j = 1; j <= phba->alpa_map[0]; j++) {
3505 alpa = phba->alpa_map[j];
3506 if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
3507 continue;
3508 lpfc_setup_disc_node(vport, alpa);
3509 }
3510 } else {
3511 /* No alpamap, so try all alpa's */
3512 for (j = 0; j < FC_MAXLOOP; j++) {
3513 /* If cfg_scan_down is set, start from highest
3514 * ALPA (0xef) to lowest (0x1).
3515 */
3516 if (vport->cfg_scan_down)
3517 index = j;
3518 else
3519 index = FC_MAXLOOP - j - 1;
3520 alpa = lpfcAlpaArray[index];
3521 if ((vport->fc_myDID & 0xff) == alpa)
3522 continue;
3523 lpfc_setup_disc_node(vport, alpa);
3524 }
3525 }
3526 return;
3527 }
3528
3529 void
3530 lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
3531 {
3532 LPFC_MBOXQ_t *mbox;
3533 struct lpfc_sli *psli = &phba->sli;
3534 struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
3535 struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
3536 struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
3537 int rc;
3538
3539 /*
3540 * if it's not a physical port or if we already send
3541 * clear_la then don't send it.
3542 */
3543 if ((phba->link_state >= LPFC_CLEAR_LA) ||
3544 (vport->port_type != LPFC_PHYSICAL_PORT) ||
3545 (phba->sli_rev == LPFC_SLI_REV4))
3546 return;
3547
3548 /* Link up discovery */
3549 if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
3550 phba->link_state = LPFC_CLEAR_LA;
3551 lpfc_clear_la(phba, mbox);
3552 mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
3553 mbox->vport = vport;
3554 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
3555 if (rc == MBX_NOT_FINISHED) {
3556 mempool_free(mbox, phba->mbox_mem_pool);
3557 lpfc_disc_flush_list(vport);
3558 extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
3559 fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
3560 next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
3561 phba->link_state = LPFC_HBA_ERROR;
3562 }
3563 }
3564 }
3565
3566 /* Reg_vpi to tell firmware to resume normal operations */
3567 void
3568 lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
3569 {
3570 LPFC_MBOXQ_t *regvpimbox;
3571
3572 regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3573 if (regvpimbox) {
3574 lpfc_reg_vpi(vport, regvpimbox);
3575 regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
3576 regvpimbox->vport = vport;
3577 if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
3578 == MBX_NOT_FINISHED) {
3579 mempool_free(regvpimbox, phba->mbox_mem_pool);
3580 }
3581 }
3582 }
3583
3584 /* Start Link up / RSCN discovery on NPR nodes */
3585 void
3586 lpfc_disc_start(struct lpfc_vport *vport)
3587 {
3588 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3589 struct lpfc_hba *phba = vport->phba;
3590 uint32_t num_sent;
3591 uint32_t clear_la_pending;
3592 int did_changed;
3593
3594 if (!lpfc_is_link_up(phba))
3595 return;
3596
3597 if (phba->link_state == LPFC_CLEAR_LA)
3598 clear_la_pending = 1;
3599 else
3600 clear_la_pending = 0;
3601
3602 if (vport->port_state < LPFC_VPORT_READY)
3603 vport->port_state = LPFC_DISC_AUTH;
3604
3605 lpfc_set_disctmo(vport);
3606
3607 if (vport->fc_prevDID == vport->fc_myDID)
3608 did_changed = 0;
3609 else
3610 did_changed = 1;
3611
3612 vport->fc_prevDID = vport->fc_myDID;
3613 vport->num_disc_nodes = 0;
3614
3615 /* Start Discovery state <hba_state> */
3616 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3617 "0202 Start Discovery hba state x%x "
3618 "Data: x%x x%x x%x\n",
3619 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
3620 vport->fc_adisc_cnt);
3621
3622 /* First do ADISCs - if any */
3623 num_sent = lpfc_els_disc_adisc(vport);
3624
3625 if (num_sent)
3626 return;
3627
3628 /*
3629 * For SLI3, cmpl_reg_vpi will set port_state to READY, and
3630 * continue discovery.
3631 */
3632 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3633 !(vport->fc_flag & FC_PT2PT) &&
3634 !(vport->fc_flag & FC_RSCN_MODE) &&
3635 (phba->sli_rev < LPFC_SLI_REV4)) {
3636 lpfc_issue_reg_vpi(phba, vport);
3637 return;
3638 }
3639
3640 /*
3641 * For SLI2, we need to set port_state to READY and continue
3642 * discovery.
3643 */
3644 if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
3645 /* If we get here, there is nothing to ADISC */
3646 if (vport->port_type == LPFC_PHYSICAL_PORT)
3647 lpfc_issue_clear_la(phba, vport);
3648
3649 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
3650 vport->num_disc_nodes = 0;
3651 /* go thru NPR nodes and issue ELS PLOGIs */
3652 if (vport->fc_npr_cnt)
3653 lpfc_els_disc_plogi(vport);
3654
3655 if (!vport->num_disc_nodes) {
3656 spin_lock_irq(shost->host_lock);
3657 vport->fc_flag &= ~FC_NDISC_ACTIVE;
3658 spin_unlock_irq(shost->host_lock);
3659 lpfc_can_disctmo(vport);
3660 }
3661 }
3662 vport->port_state = LPFC_VPORT_READY;
3663 } else {
3664 /* Next do PLOGIs - if any */
3665 num_sent = lpfc_els_disc_plogi(vport);
3666
3667 if (num_sent)
3668 return;
3669
3670 if (vport->fc_flag & FC_RSCN_MODE) {
3671 /* Check to see if more RSCNs came in while we
3672 * were processing this one.
3673 */
3674 if ((vport->fc_rscn_id_cnt == 0) &&
3675 (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
3676 spin_lock_irq(shost->host_lock);
3677 vport->fc_flag &= ~FC_RSCN_MODE;
3678 spin_unlock_irq(shost->host_lock);
3679 lpfc_can_disctmo(vport);
3680 } else
3681 lpfc_els_handle_rscn(vport);
3682 }
3683 }
3684 return;
3685 }
3686
3687 /*
3688 * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
3689 * ring the match the sppecified nodelist.
3690 */
3691 static void
3692 lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
3693 {
3694 LIST_HEAD(completions);
3695 struct lpfc_sli *psli;
3696 IOCB_t *icmd;
3697 struct lpfc_iocbq *iocb, *next_iocb;
3698 struct lpfc_sli_ring *pring;
3699
3700 psli = &phba->sli;
3701 pring = &psli->ring[LPFC_ELS_RING];
3702
3703 /* Error matching iocb on txq or txcmplq
3704 * First check the txq.
3705 */
3706 spin_lock_irq(&phba->hbalock);
3707 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
3708 if (iocb->context1 != ndlp) {
3709 continue;
3710 }
3711 icmd = &iocb->iocb;
3712 if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
3713 (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
3714
3715 list_move_tail(&iocb->list, &completions);
3716 pring->txq_cnt--;
3717 }
3718 }
3719
3720 /* Next check the txcmplq */
3721 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
3722 if (iocb->context1 != ndlp) {
3723 continue;
3724 }
3725 icmd = &iocb->iocb;
3726 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
3727 icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
3728 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3729 }
3730 }
3731 spin_unlock_irq(&phba->hbalock);
3732
3733 /* Cancel all the IOCBs from the completions list */
3734 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3735 IOERR_SLI_ABORTED);
3736 }
3737
3738 static void
3739 lpfc_disc_flush_list(struct lpfc_vport *vport)
3740 {
3741 struct lpfc_nodelist *ndlp, *next_ndlp;
3742 struct lpfc_hba *phba = vport->phba;
3743
3744 if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
3745 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
3746 nlp_listp) {
3747 if (!NLP_CHK_NODE_ACT(ndlp))
3748 continue;
3749 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
3750 ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
3751 lpfc_free_tx(phba, ndlp);
3752 }
3753 }
3754 }
3755 }
3756
3757 void
3758 lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
3759 {
3760 lpfc_els_flush_rscn(vport);
3761 lpfc_els_flush_cmd(vport);
3762 lpfc_disc_flush_list(vport);
3763 }
3764
3765 /*****************************************************************************/
3766 /*
3767 * NAME: lpfc_disc_timeout
3768 *
3769 * FUNCTION: Fibre Channel driver discovery timeout routine.
3770 *
3771 * EXECUTION ENVIRONMENT: interrupt only
3772 *
3773 * CALLED FROM:
3774 * Timer function
3775 *
3776 * RETURNS:
3777 * none
3778 */
3779 /*****************************************************************************/
3780 void
3781 lpfc_disc_timeout(unsigned long ptr)
3782 {
3783 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
3784 struct lpfc_hba *phba = vport->phba;
3785 uint32_t tmo_posted;
3786 unsigned long flags = 0;
3787
3788 if (unlikely(!phba))
3789 return;
3790
3791 spin_lock_irqsave(&vport->work_port_lock, flags);
3792 tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
3793 if (!tmo_posted)
3794 vport->work_port_events |= WORKER_DISC_TMO;
3795 spin_unlock_irqrestore(&vport->work_port_lock, flags);
3796
3797 if (!tmo_posted)
3798 lpfc_worker_wake_up(phba);
3799 return;
3800 }
3801
3802 static void
3803 lpfc_disc_timeout_handler(struct lpfc_vport *vport)
3804 {
3805 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3806 struct lpfc_hba *phba = vport->phba;
3807 struct lpfc_sli *psli = &phba->sli;
3808 struct lpfc_nodelist *ndlp, *next_ndlp;
3809 LPFC_MBOXQ_t *initlinkmbox;
3810 int rc, clrlaerr = 0;
3811
3812 if (!(vport->fc_flag & FC_DISC_TMO))
3813 return;
3814
3815 spin_lock_irq(shost->host_lock);
3816 vport->fc_flag &= ~FC_DISC_TMO;
3817 spin_unlock_irq(shost->host_lock);
3818
3819 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3820 "disc timeout: state:x%x rtry:x%x flg:x%x",
3821 vport->port_state, vport->fc_ns_retry, vport->fc_flag);
3822
3823 switch (vport->port_state) {
3824
3825 case LPFC_LOCAL_CFG_LINK:
3826 /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
3827 * FAN
3828 */
3829 /* FAN timeout */
3830 lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
3831 "0221 FAN timeout\n");
3832 /* Start discovery by sending FLOGI, clean up old rpis */
3833 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
3834 nlp_listp) {
3835 if (!NLP_CHK_NODE_ACT(ndlp))
3836 continue;
3837 if (ndlp->nlp_state != NLP_STE_NPR_NODE)
3838 continue;
3839 if (ndlp->nlp_type & NLP_FABRIC) {
3840 /* Clean up the ndlp on Fabric connections */
3841 lpfc_drop_node(vport, ndlp);
3842
3843 } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
3844 /* Fail outstanding IO now since device
3845 * is marked for PLOGI.
3846 */
3847 lpfc_unreg_rpi(vport, ndlp);
3848 }
3849 }
3850 if (vport->port_state != LPFC_FLOGI) {
3851 lpfc_initial_flogi(vport);
3852 return;
3853 }
3854 break;
3855
3856 case LPFC_FDISC:
3857 case LPFC_FLOGI:
3858 /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
3859 /* Initial FLOGI timeout */
3860 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3861 "0222 Initial %s timeout\n",
3862 vport->vpi ? "FDISC" : "FLOGI");
3863
3864 /* Assume no Fabric and go on with discovery.
3865 * Check for outstanding ELS FLOGI to abort.
3866 */
3867
3868 /* FLOGI failed, so just use loop map to make discovery list */
3869 lpfc_disc_list_loopmap(vport);
3870
3871 /* Start discovery */
3872 lpfc_disc_start(vport);
3873 break;
3874
3875 case LPFC_FABRIC_CFG_LINK:
3876 /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
3877 NameServer login */
3878 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3879 "0223 Timeout while waiting for "
3880 "NameServer login\n");
3881 /* Next look for NameServer ndlp */
3882 ndlp = lpfc_findnode_did(vport, NameServer_DID);
3883 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
3884 lpfc_els_abort(phba, ndlp);
3885
3886 /* ReStart discovery */
3887 goto restart_disc;
3888
3889 case LPFC_NS_QRY:
3890 /* Check for wait for NameServer Rsp timeout */
3891 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3892 "0224 NameServer Query timeout "
3893 "Data: x%x x%x\n",
3894 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
3895
3896 if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
3897 /* Try it one more time */
3898 vport->fc_ns_retry++;
3899 rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
3900 vport->fc_ns_retry, 0);
3901 if (rc == 0)
3902 break;
3903 }
3904 vport->fc_ns_retry = 0;
3905
3906 restart_disc:
3907 /*
3908 * Discovery is over.
3909 * set port_state to PORT_READY if SLI2.
3910 * cmpl_reg_vpi will set port_state to READY for SLI3.
3911 */
3912 if (phba->sli_rev < LPFC_SLI_REV4) {
3913 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3914 lpfc_issue_reg_vpi(phba, vport);
3915 else { /* NPIV Not enabled */
3916 lpfc_issue_clear_la(phba, vport);
3917 vport->port_state = LPFC_VPORT_READY;
3918 }
3919 }
3920
3921 /* Setup and issue mailbox INITIALIZE LINK command */
3922 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3923 if (!initlinkmbox) {
3924 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3925 "0206 Device Discovery "
3926 "completion error\n");
3927 phba->link_state = LPFC_HBA_ERROR;
3928 break;
3929 }
3930
3931 lpfc_linkdown(phba);
3932 lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
3933 phba->cfg_link_speed);
3934 initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
3935 initlinkmbox->vport = vport;
3936 initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3937 rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
3938 lpfc_set_loopback_flag(phba);
3939 if (rc == MBX_NOT_FINISHED)
3940 mempool_free(initlinkmbox, phba->mbox_mem_pool);
3941
3942 break;
3943
3944 case LPFC_DISC_AUTH:
3945 /* Node Authentication timeout */
3946 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3947 "0227 Node Authentication timeout\n");
3948 lpfc_disc_flush_list(vport);
3949
3950 /*
3951 * set port_state to PORT_READY if SLI2.
3952 * cmpl_reg_vpi will set port_state to READY for SLI3.
3953 */
3954 if (phba->sli_rev < LPFC_SLI_REV4) {
3955 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3956 lpfc_issue_reg_vpi(phba, vport);
3957 else { /* NPIV Not enabled */
3958 lpfc_issue_clear_la(phba, vport);
3959 vport->port_state = LPFC_VPORT_READY;
3960 }
3961 }
3962 break;
3963
3964 case LPFC_VPORT_READY:
3965 if (vport->fc_flag & FC_RSCN_MODE) {
3966 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3967 "0231 RSCN timeout Data: x%x "
3968 "x%x\n",
3969 vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
3970
3971 /* Cleanup any outstanding ELS commands */
3972 lpfc_els_flush_cmd(vport);
3973
3974 lpfc_els_flush_rscn(vport);
3975 lpfc_disc_flush_list(vport);
3976 }
3977 break;
3978
3979 default:
3980 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3981 "0273 Unexpected discovery timeout, "
3982 "vport State x%x\n", vport->port_state);
3983 break;
3984 }
3985
3986 switch (phba->link_state) {
3987 case LPFC_CLEAR_LA:
3988 /* CLEAR LA timeout */
3989 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
3990 "0228 CLEAR LA timeout\n");
3991 clrlaerr = 1;
3992 break;
3993
3994 case LPFC_LINK_UP:
3995 lpfc_issue_clear_la(phba, vport);
3996 /* Drop thru */
3997 case LPFC_LINK_UNKNOWN:
3998 case LPFC_WARM_START:
3999 case LPFC_INIT_START:
4000 case LPFC_INIT_MBX_CMDS:
4001 case LPFC_LINK_DOWN:
4002 case LPFC_HBA_ERROR:
4003 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
4004 "0230 Unexpected timeout, hba link "
4005 "state x%x\n", phba->link_state);
4006 clrlaerr = 1;
4007 break;
4008
4009 case LPFC_HBA_READY:
4010 break;
4011 }
4012
4013 if (clrlaerr) {
4014 lpfc_disc_flush_list(vport);
4015 psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4016 psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4017 psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
4018 vport->port_state = LPFC_VPORT_READY;
4019 }
4020
4021 return;
4022 }
4023
4024 /*
4025 * This routine handles processing a NameServer REG_LOGIN mailbox
4026 * command upon completion. It is setup in the LPFC_MBOXQ
4027 * as the completion routine when the command is
4028 * handed off to the SLI layer.
4029 */
4030 void
4031 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4032 {
4033 MAILBOX_t *mb = &pmb->u.mb;
4034 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
4035 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
4036 struct lpfc_vport *vport = pmb->vport;
4037
4038 pmb->context1 = NULL;
4039
4040 ndlp->nlp_rpi = mb->un.varWords[0];
4041 ndlp->nlp_flag |= NLP_RPI_VALID;
4042 ndlp->nlp_type |= NLP_FABRIC;
4043 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
4044
4045 /*
4046 * Start issuing Fabric-Device Management Interface (FDMI) command to
4047 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
4048 * fdmi-on=2 (supporting RPA/hostnmae)
4049 */
4050
4051 if (vport->cfg_fdmi_on == 1)
4052 lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
4053 else
4054 mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
4055
4056 /* decrement the node reference count held for this callback
4057 * function.
4058 */
4059 lpfc_nlp_put(ndlp);
4060 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4061 kfree(mp);
4062 mempool_free(pmb, phba->mbox_mem_pool);
4063
4064 return;
4065 }
4066
4067 static int
4068 lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
4069 {
4070 uint16_t *rpi = param;
4071
4072 return ndlp->nlp_rpi == *rpi;
4073 }
4074
4075 static int
4076 lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
4077 {
4078 return memcmp(&ndlp->nlp_portname, param,
4079 sizeof(ndlp->nlp_portname)) == 0;
4080 }
4081
4082 static struct lpfc_nodelist *
4083 __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
4084 {
4085 struct lpfc_nodelist *ndlp;
4086
4087 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4088 if (filter(ndlp, param))
4089 return ndlp;
4090 }
4091 return NULL;
4092 }
4093
4094 /*
4095 * This routine looks up the ndlp lists for the given RPI. If rpi found it
4096 * returns the node list element pointer else return NULL.
4097 */
4098 struct lpfc_nodelist *
4099 __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
4100 {
4101 return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
4102 }
4103
4104 /*
4105 * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
4106 * returns the node element list pointer else return NULL.
4107 */
4108 struct lpfc_nodelist *
4109 lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
4110 {
4111 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4112 struct lpfc_nodelist *ndlp;
4113
4114 spin_lock_irq(shost->host_lock);
4115 ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
4116 spin_unlock_irq(shost->host_lock);
4117 return ndlp;
4118 }
4119
4120 void
4121 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4122 uint32_t did)
4123 {
4124 memset(ndlp, 0, sizeof (struct lpfc_nodelist));
4125
4126 lpfc_initialize_node(vport, ndlp, did);
4127 INIT_LIST_HEAD(&ndlp->nlp_listp);
4128
4129 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
4130 "node init: did:x%x",
4131 ndlp->nlp_DID, 0, 0);
4132
4133 return;
4134 }
4135
4136 /* This routine releases all resources associated with a specifc NPort's ndlp
4137 * and mempool_free's the nodelist.
4138 */
4139 static void
4140 lpfc_nlp_release(struct kref *kref)
4141 {
4142 struct lpfc_hba *phba;
4143 unsigned long flags;
4144 struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
4145 kref);
4146
4147 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4148 "node release: did:x%x flg:x%x type:x%x",
4149 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
4150
4151 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
4152 "0279 lpfc_nlp_release: ndlp:x%p "
4153 "usgmap:x%x refcnt:%d\n",
4154 (void *)ndlp, ndlp->nlp_usg_map,
4155 atomic_read(&ndlp->kref.refcount));
4156
4157 /* remove ndlp from action. */
4158 lpfc_nlp_remove(ndlp->vport, ndlp);
4159
4160 /* clear the ndlp active flag for all release cases */
4161 phba = ndlp->phba;
4162 spin_lock_irqsave(&phba->ndlp_lock, flags);
4163 NLP_CLR_NODE_ACT(ndlp);
4164 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4165
4166 /* free ndlp memory for final ndlp release */
4167 if (NLP_CHK_FREE_REQ(ndlp)) {
4168 kfree(ndlp->lat_data);
4169 mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
4170 }
4171 }
4172
4173 /* This routine bumps the reference count for a ndlp structure to ensure
4174 * that one discovery thread won't free a ndlp while another discovery thread
4175 * is using it.
4176 */
4177 struct lpfc_nodelist *
4178 lpfc_nlp_get(struct lpfc_nodelist *ndlp)
4179 {
4180 struct lpfc_hba *phba;
4181 unsigned long flags;
4182
4183 if (ndlp) {
4184 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4185 "node get: did:x%x flg:x%x refcnt:x%x",
4186 ndlp->nlp_DID, ndlp->nlp_flag,
4187 atomic_read(&ndlp->kref.refcount));
4188 /* The check of ndlp usage to prevent incrementing the
4189 * ndlp reference count that is in the process of being
4190 * released.
4191 */
4192 phba = ndlp->phba;
4193 spin_lock_irqsave(&phba->ndlp_lock, flags);
4194 if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
4195 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4196 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4197 "0276 lpfc_nlp_get: ndlp:x%p "
4198 "usgmap:x%x refcnt:%d\n",
4199 (void *)ndlp, ndlp->nlp_usg_map,
4200 atomic_read(&ndlp->kref.refcount));
4201 return NULL;
4202 } else
4203 kref_get(&ndlp->kref);
4204 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4205 }
4206 return ndlp;
4207 }
4208
4209 /* This routine decrements the reference count for a ndlp structure. If the
4210 * count goes to 0, this indicates the the associated nodelist should be
4211 * freed. Returning 1 indicates the ndlp resource has been released; on the
4212 * other hand, returning 0 indicates the ndlp resource has not been released
4213 * yet.
4214 */
4215 int
4216 lpfc_nlp_put(struct lpfc_nodelist *ndlp)
4217 {
4218 struct lpfc_hba *phba;
4219 unsigned long flags;
4220
4221 if (!ndlp)
4222 return 1;
4223
4224 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4225 "node put: did:x%x flg:x%x refcnt:x%x",
4226 ndlp->nlp_DID, ndlp->nlp_flag,
4227 atomic_read(&ndlp->kref.refcount));
4228 phba = ndlp->phba;
4229 spin_lock_irqsave(&phba->ndlp_lock, flags);
4230 /* Check the ndlp memory free acknowledge flag to avoid the
4231 * possible race condition that kref_put got invoked again
4232 * after previous one has done ndlp memory free.
4233 */
4234 if (NLP_CHK_FREE_ACK(ndlp)) {
4235 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4236 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4237 "0274 lpfc_nlp_put: ndlp:x%p "
4238 "usgmap:x%x refcnt:%d\n",
4239 (void *)ndlp, ndlp->nlp_usg_map,
4240 atomic_read(&ndlp->kref.refcount));
4241 return 1;
4242 }
4243 /* Check the ndlp inactivate log flag to avoid the possible
4244 * race condition that kref_put got invoked again after ndlp
4245 * is already in inactivating state.
4246 */
4247 if (NLP_CHK_IACT_REQ(ndlp)) {
4248 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4249 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
4250 "0275 lpfc_nlp_put: ndlp:x%p "
4251 "usgmap:x%x refcnt:%d\n",
4252 (void *)ndlp, ndlp->nlp_usg_map,
4253 atomic_read(&ndlp->kref.refcount));
4254 return 1;
4255 }
4256 /* For last put, mark the ndlp usage flags to make sure no
4257 * other kref_get and kref_put on the same ndlp shall get
4258 * in between the process when the final kref_put has been
4259 * invoked on this ndlp.
4260 */
4261 if (atomic_read(&ndlp->kref.refcount) == 1) {
4262 /* Indicate ndlp is put to inactive state. */
4263 NLP_SET_IACT_REQ(ndlp);
4264 /* Acknowledge ndlp memory free has been seen. */
4265 if (NLP_CHK_FREE_REQ(ndlp))
4266 NLP_SET_FREE_ACK(ndlp);
4267 }
4268 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
4269 /* Note, the kref_put returns 1 when decrementing a reference
4270 * count that was 1, it invokes the release callback function,
4271 * but it still left the reference count as 1 (not actually
4272 * performs the last decrementation). Otherwise, it actually
4273 * decrements the reference count and returns 0.
4274 */
4275 return kref_put(&ndlp->kref, lpfc_nlp_release);
4276 }
4277
4278 /* This routine free's the specified nodelist if it is not in use
4279 * by any other discovery thread. This routine returns 1 if the
4280 * ndlp has been freed. A return value of 0 indicates the ndlp is
4281 * not yet been released.
4282 */
4283 int
4284 lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
4285 {
4286 lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
4287 "node not used: did:x%x flg:x%x refcnt:x%x",
4288 ndlp->nlp_DID, ndlp->nlp_flag,
4289 atomic_read(&ndlp->kref.refcount));
4290 if (atomic_read(&ndlp->kref.refcount) == 1)
4291 if (lpfc_nlp_put(ndlp))
4292 return 1;
4293 return 0;
4294 }
4295
4296 /**
4297 * lpfc_fcf_inuse - Check if FCF can be unregistered.
4298 * @phba: Pointer to hba context object.
4299 *
4300 * This function iterate through all FC nodes associated
4301 * will all vports to check if there is any node with
4302 * fc_rports associated with it. If there is an fc_rport
4303 * associated with the node, then the node is either in
4304 * discovered state or its devloss_timer is pending.
4305 */
4306 static int
4307 lpfc_fcf_inuse(struct lpfc_hba *phba)
4308 {
4309 struct lpfc_vport **vports;
4310 int i, ret = 0;
4311 struct lpfc_nodelist *ndlp;
4312 struct Scsi_Host *shost;
4313
4314 vports = lpfc_create_vport_work_array(phba);
4315
4316 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4317 shost = lpfc_shost_from_vport(vports[i]);
4318 spin_lock_irq(shost->host_lock);
4319 list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
4320 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
4321 (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
4322 ret = 1;
4323 spin_unlock_irq(shost->host_lock);
4324 goto out;
4325 }
4326 }
4327 spin_unlock_irq(shost->host_lock);
4328 }
4329 out:
4330 lpfc_destroy_vport_work_array(phba, vports);
4331 return ret;
4332 }
4333
4334 /**
4335 * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
4336 * @phba: Pointer to hba context object.
4337 * @mboxq: Pointer to mailbox object.
4338 *
4339 * This function frees memory associated with the mailbox command.
4340 */
4341 static void
4342 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
4343 {
4344 struct lpfc_vport *vport = mboxq->vport;
4345
4346 if (mboxq->u.mb.mbxStatus) {
4347 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4348 "2555 UNREG_VFI mbxStatus error x%x "
4349 "HBA state x%x\n",
4350 mboxq->u.mb.mbxStatus, vport->port_state);
4351 }
4352 mempool_free(mboxq, phba->mbox_mem_pool);
4353 return;
4354 }
4355
4356 /**
4357 * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
4358 * @phba: Pointer to hba context object.
4359 * @mboxq: Pointer to mailbox object.
4360 *
4361 * This function frees memory associated with the mailbox command.
4362 */
4363 static void
4364 lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
4365 {
4366 struct lpfc_vport *vport = mboxq->vport;
4367
4368 if (mboxq->u.mb.mbxStatus) {
4369 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4370 "2550 UNREG_FCFI mbxStatus error x%x "
4371 "HBA state x%x\n",
4372 mboxq->u.mb.mbxStatus, vport->port_state);
4373 }
4374 mempool_free(mboxq, phba->mbox_mem_pool);
4375 return;
4376 }
4377
4378 /**
4379 * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
4380 * @phba: Pointer to hba context object.
4381 *
4382 * This function check if there are any connected remote port for the FCF and
4383 * if all the devices are disconnected, this function unregister FCFI.
4384 * This function also tries to use another FCF for discovery.
4385 */
4386 void
4387 lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
4388 {
4389 LPFC_MBOXQ_t *mbox;
4390 int rc;
4391 struct lpfc_vport **vports;
4392 int i;
4393
4394 spin_lock_irq(&phba->hbalock);
4395 /*
4396 * If HBA is not running in FIP mode or
4397 * If HBA does not support FCoE or
4398 * If FCF is not registered.
4399 * do nothing.
4400 */
4401 if (!(phba->hba_flag & HBA_FCOE_SUPPORT) ||
4402 !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
4403 (phba->cfg_enable_fip == 0)) {
4404 spin_unlock_irq(&phba->hbalock);
4405 return;
4406 }
4407 spin_unlock_irq(&phba->hbalock);
4408
4409 if (lpfc_fcf_inuse(phba))
4410 return;
4411
4412
4413 /* Unregister VPIs */
4414 vports = lpfc_create_vport_work_array(phba);
4415 if (vports &&
4416 (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
4417 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4418 lpfc_mbx_unreg_vpi(vports[i]);
4419 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4420 vports[i]->vfi_state &= ~LPFC_VFI_REGISTERED;
4421 }
4422 lpfc_destroy_vport_work_array(phba, vports);
4423
4424 /* Unregister VFI */
4425 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4426 if (!mbox) {
4427 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4428 "2556 UNREG_VFI mbox allocation failed"
4429 "HBA state x%x\n",
4430 phba->pport->port_state);
4431 return;
4432 }
4433
4434 lpfc_unreg_vfi(mbox, phba->pport->vfi);
4435 mbox->vport = phba->pport;
4436 mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl;
4437
4438 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4439 if (rc == MBX_NOT_FINISHED) {
4440 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4441 "2557 UNREG_VFI issue mbox failed rc x%x "
4442 "HBA state x%x\n",
4443 rc, phba->pport->port_state);
4444 mempool_free(mbox, phba->mbox_mem_pool);
4445 return;
4446 }
4447
4448 /* Unregister FCF */
4449 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4450 if (!mbox) {
4451 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4452 "2551 UNREG_FCFI mbox allocation failed"
4453 "HBA state x%x\n",
4454 phba->pport->port_state);
4455 return;
4456 }
4457
4458 lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
4459 mbox->vport = phba->pport;
4460 mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
4461 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4462
4463 if (rc == MBX_NOT_FINISHED) {
4464 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4465 "2552 UNREG_FCFI issue mbox failed rc x%x "
4466 "HBA state x%x\n",
4467 rc, phba->pport->port_state);
4468 mempool_free(mbox, phba->mbox_mem_pool);
4469 return;
4470 }
4471
4472 spin_lock_irq(&phba->hbalock);
4473 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_REGISTERED |
4474 FCF_DISCOVERED | FCF_BOOT_ENABLE | FCF_IN_USE |
4475 FCF_VALID_VLAN);
4476 spin_unlock_irq(&phba->hbalock);
4477
4478 /*
4479 * If driver is not unloading, check if there is any other
4480 * FCF record that can be used for discovery.
4481 */
4482 if ((phba->pport->load_flag & FC_UNLOADING) ||
4483 (phba->link_state < LPFC_LINK_UP))
4484 return;
4485
4486 rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
4487
4488 if (rc)
4489 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
4490 "2553 lpfc_unregister_unused_fcf failed to read FCF"
4491 " record HBA state x%x\n",
4492 phba->pport->port_state);
4493 }
4494
4495 /**
4496 * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
4497 * @phba: Pointer to hba context object.
4498 * @buff: Buffer containing the FCF connection table as in the config
4499 * region.
4500 * This function create driver data structure for the FCF connection
4501 * record table read from config region 23.
4502 */
4503 static void
4504 lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
4505 uint8_t *buff)
4506 {
4507 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4508 struct lpfc_fcf_conn_hdr *conn_hdr;
4509 struct lpfc_fcf_conn_rec *conn_rec;
4510 uint32_t record_count;
4511 int i;
4512
4513 /* Free the current connect table */
4514 list_for_each_entry_safe(conn_entry, next_conn_entry,
4515 &phba->fcf_conn_rec_list, list)
4516 kfree(conn_entry);
4517
4518 conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
4519 record_count = conn_hdr->length * sizeof(uint32_t)/
4520 sizeof(struct lpfc_fcf_conn_rec);
4521
4522 conn_rec = (struct lpfc_fcf_conn_rec *)
4523 (buff + sizeof(struct lpfc_fcf_conn_hdr));
4524
4525 for (i = 0; i < record_count; i++) {
4526 if (!(conn_rec[i].flags & FCFCNCT_VALID))
4527 continue;
4528 conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
4529 GFP_KERNEL);
4530 if (!conn_entry) {
4531 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4532 "2566 Failed to allocate connection"
4533 " table entry\n");
4534 return;
4535 }
4536
4537 memcpy(&conn_entry->conn_rec, &conn_rec[i],
4538 sizeof(struct lpfc_fcf_conn_rec));
4539 conn_entry->conn_rec.vlan_tag =
4540 le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF;
4541 conn_entry->conn_rec.flags =
4542 le16_to_cpu(conn_entry->conn_rec.flags);
4543 list_add_tail(&conn_entry->list,
4544 &phba->fcf_conn_rec_list);
4545 }
4546 }
4547
4548 /**
4549 * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
4550 * @phba: Pointer to hba context object.
4551 * @buff: Buffer containing the FCoE parameter data structure.
4552 *
4553 * This function update driver data structure with config
4554 * parameters read from config region 23.
4555 */
4556 static void
4557 lpfc_read_fcoe_param(struct lpfc_hba *phba,
4558 uint8_t *buff)
4559 {
4560 struct lpfc_fip_param_hdr *fcoe_param_hdr;
4561 struct lpfc_fcoe_params *fcoe_param;
4562
4563 fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
4564 buff;
4565 fcoe_param = (struct lpfc_fcoe_params *)
4566 (buff + sizeof(struct lpfc_fip_param_hdr));
4567
4568 if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
4569 (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
4570 return;
4571
4572 if (bf_get(lpfc_fip_param_hdr_fipp_mode, fcoe_param_hdr) ==
4573 FIPP_MODE_ON)
4574 phba->cfg_enable_fip = 1;
4575
4576 if (bf_get(lpfc_fip_param_hdr_fipp_mode, fcoe_param_hdr) ==
4577 FIPP_MODE_OFF)
4578 phba->cfg_enable_fip = 0;
4579
4580 if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
4581 phba->valid_vlan = 1;
4582 phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
4583 0xFFF;
4584 }
4585
4586 phba->fc_map[0] = fcoe_param->fc_map[0];
4587 phba->fc_map[1] = fcoe_param->fc_map[1];
4588 phba->fc_map[2] = fcoe_param->fc_map[2];
4589 return;
4590 }
4591
4592 /**
4593 * lpfc_get_rec_conf23 - Get a record type in config region data.
4594 * @buff: Buffer containing config region 23 data.
4595 * @size: Size of the data buffer.
4596 * @rec_type: Record type to be searched.
4597 *
4598 * This function searches config region data to find the begining
4599 * of the record specified by record_type. If record found, this
4600 * function return pointer to the record else return NULL.
4601 */
4602 static uint8_t *
4603 lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
4604 {
4605 uint32_t offset = 0, rec_length;
4606
4607 if ((buff[0] == LPFC_REGION23_LAST_REC) ||
4608 (size < sizeof(uint32_t)))
4609 return NULL;
4610
4611 rec_length = buff[offset + 1];
4612
4613 /*
4614 * One TLV record has one word header and number of data words
4615 * specified in the rec_length field of the record header.
4616 */
4617 while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
4618 <= size) {
4619 if (buff[offset] == rec_type)
4620 return &buff[offset];
4621
4622 if (buff[offset] == LPFC_REGION23_LAST_REC)
4623 return NULL;
4624
4625 offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
4626 rec_length = buff[offset + 1];
4627 }
4628 return NULL;
4629 }
4630
4631 /**
4632 * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
4633 * @phba: Pointer to lpfc_hba data structure.
4634 * @buff: Buffer containing config region 23 data.
4635 * @size: Size of the data buffer.
4636 *
4637 * This fuction parse the FCoE config parameters in config region 23 and
4638 * populate driver data structure with the parameters.
4639 */
4640 void
4641 lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
4642 uint8_t *buff,
4643 uint32_t size)
4644 {
4645 uint32_t offset = 0, rec_length;
4646 uint8_t *rec_ptr;
4647
4648 /*
4649 * If data size is less than 2 words signature and version cannot be
4650 * verified.
4651 */
4652 if (size < 2*sizeof(uint32_t))
4653 return;
4654
4655 /* Check the region signature first */
4656 if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
4657 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4658 "2567 Config region 23 has bad signature\n");
4659 return;
4660 }
4661
4662 offset += 4;
4663
4664 /* Check the data structure version */
4665 if (buff[offset] != LPFC_REGION23_VERSION) {
4666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4667 "2568 Config region 23 has bad version\n");
4668 return;
4669 }
4670 offset += 4;
4671
4672 rec_length = buff[offset + 1];
4673
4674 /* Read FCoE param record */
4675 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
4676 size - offset, FCOE_PARAM_TYPE);
4677 if (rec_ptr)
4678 lpfc_read_fcoe_param(phba, rec_ptr);
4679
4680 /* Read FCF connection table */
4681 rec_ptr = lpfc_get_rec_conf23(&buff[offset],
4682 size - offset, FCOE_CONN_TBL_TYPE);
4683 if (rec_ptr)
4684 lpfc_read_fcf_conn_tbl(phba, rec_ptr);
4685
4686 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree