dea3101e |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * |
3 | * Enterprise Fibre Channel Host Bus Adapters. * |
4 | * Refer to the README file included with this package for * |
5 | * driver version and adapter support. * |
6 | * Copyright (C) 2004 Emulex Corporation. * |
7 | * www.emulex.com * |
8 | * * |
9 | * This program is free software; you can redistribute it and/or * |
10 | * modify it under the terms of the GNU General Public License * |
11 | * as published by the Free Software Foundation; either version 2 * |
12 | * of the License, or (at your option) any later version. * |
13 | * * |
14 | * This program is distributed in the hope that it will be useful, * |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
17 | * GNU General Public License for more details, a copy of which * |
18 | * can be found in the file COPYING included with this package. * |
19 | *******************************************************************/ |
20 | |
21 | /* |
22 | * $Id: lpfc_hbadisc.c 1.266 2005/04/13 11:59:06EDT sf_support Exp $ |
23 | */ |
24 | |
25 | #include <linux/blkdev.h> |
26 | #include <linux/pci.h> |
27 | #include <linux/kthread.h> |
28 | #include <linux/interrupt.h> |
29 | |
30 | #include <scsi/scsi_device.h> |
31 | #include <scsi/scsi_host.h> |
32 | #include <scsi/scsi_transport_fc.h> |
33 | |
34 | #include "lpfc_hw.h" |
35 | #include "lpfc_disc.h" |
36 | #include "lpfc_sli.h" |
37 | #include "lpfc_scsi.h" |
38 | #include "lpfc.h" |
39 | #include "lpfc_logmsg.h" |
40 | #include "lpfc_crtn.h" |
41 | |
42 | /* AlpaArray for assignment of scsid for scan-down and bind_method */ |
43 | static uint8_t lpfcAlpaArray[] = { |
44 | 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, |
45 | 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, |
46 | 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, |
47 | 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, |
48 | 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, |
49 | 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, |
50 | 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, |
51 | 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, |
52 | 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, |
53 | 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, |
54 | 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, |
55 | 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, |
56 | 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 |
57 | }; |
58 | |
59 | static void lpfc_disc_timeout_handler(struct lpfc_hba *); |
60 | |
61 | static void |
62 | lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) |
63 | { |
64 | if (!(ndlp->nlp_type & NLP_FABRIC)) { |
65 | /* Nodev timeout on NPort <nlp_DID> */ |
66 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, |
67 | "%d:0203 Nodev timeout on NPort x%x " |
68 | "Data: x%x x%x x%x\n", |
69 | phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag, |
70 | ndlp->nlp_state, ndlp->nlp_rpi); |
71 | } |
72 | |
73 | spin_lock_irq(phba->host->host_lock); |
74 | if (!(ndlp->nlp_flag & NLP_NODEV_TMO)) { |
75 | spin_unlock_irq(phba->host->host_lock); |
76 | return; |
77 | } |
78 | |
79 | ndlp->nlp_flag &= ~NLP_NODEV_TMO; |
80 | |
81 | if (ndlp->nlp_sid != NLP_NO_SID) { |
82 | /* flush the target */ |
83 | lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring], |
84 | ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT); |
85 | } |
86 | spin_unlock_irq(phba->host->host_lock); |
87 | |
88 | lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM); |
89 | return; |
90 | } |
91 | |
92 | static void |
93 | lpfc_work_list_done(struct lpfc_hba * phba) |
94 | { |
95 | struct lpfc_work_evt *evtp = NULL; |
96 | struct lpfc_nodelist *ndlp; |
97 | int free_evt; |
98 | |
99 | spin_lock_irq(phba->host->host_lock); |
100 | while(!list_empty(&phba->work_list)) { |
101 | list_remove_head((&phba->work_list), evtp, typeof(*evtp), |
102 | evt_listp); |
103 | spin_unlock_irq(phba->host->host_lock); |
104 | free_evt = 1; |
105 | switch(evtp->evt) { |
106 | case LPFC_EVT_NODEV_TMO: |
107 | ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); |
108 | lpfc_process_nodev_timeout(phba, ndlp); |
109 | free_evt = 0; |
110 | break; |
111 | case LPFC_EVT_ELS_RETRY: |
112 | ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); |
113 | lpfc_els_retry_delay_handler(ndlp); |
114 | free_evt = 0; |
115 | break; |
116 | case LPFC_EVT_ONLINE: |
117 | *(int *)(evtp->evt_arg1) = lpfc_online(phba); |
118 | complete((struct completion *)(evtp->evt_arg2)); |
119 | break; |
120 | case LPFC_EVT_OFFLINE: |
121 | *(int *)(evtp->evt_arg1) = lpfc_offline(phba); |
122 | complete((struct completion *)(evtp->evt_arg2)); |
123 | break; |
124 | } |
125 | if (free_evt) |
126 | kfree(evtp); |
127 | spin_lock_irq(phba->host->host_lock); |
128 | } |
129 | spin_unlock_irq(phba->host->host_lock); |
130 | |
131 | } |
132 | |
133 | static void |
134 | lpfc_work_done(struct lpfc_hba * phba) |
135 | { |
136 | struct lpfc_sli_ring *pring; |
137 | int i; |
138 | uint32_t ha_copy; |
139 | uint32_t control; |
140 | uint32_t work_hba_events; |
141 | |
142 | spin_lock_irq(phba->host->host_lock); |
143 | ha_copy = phba->work_ha; |
144 | phba->work_ha = 0; |
145 | work_hba_events=phba->work_hba_events; |
146 | spin_unlock_irq(phba->host->host_lock); |
147 | |
148 | if(ha_copy & HA_ERATT) |
149 | lpfc_handle_eratt(phba); |
150 | |
151 | if(ha_copy & HA_MBATT) |
152 | lpfc_sli_handle_mb_event(phba); |
153 | |
154 | if(ha_copy & HA_LATT) |
155 | lpfc_handle_latt(phba); |
156 | |
157 | if (work_hba_events & WORKER_DISC_TMO) |
158 | lpfc_disc_timeout_handler(phba); |
159 | |
160 | if (work_hba_events & WORKER_ELS_TMO) |
161 | lpfc_els_timeout_handler(phba); |
162 | |
163 | if (work_hba_events & WORKER_MBOX_TMO) |
164 | lpfc_mbox_timeout_handler(phba); |
165 | |
166 | if (work_hba_events & WORKER_FDMI_TMO) |
167 | lpfc_fdmi_tmo_handler(phba); |
168 | |
169 | spin_lock_irq(phba->host->host_lock); |
170 | phba->work_hba_events &= ~work_hba_events; |
171 | spin_unlock_irq(phba->host->host_lock); |
172 | |
173 | for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) { |
174 | pring = &phba->sli.ring[i]; |
175 | if ((ha_copy & HA_RXATT) |
176 | || (pring->flag & LPFC_DEFERRED_RING_EVENT)) { |
177 | if (pring->flag & LPFC_STOP_IOCB_MASK) { |
178 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
179 | } else { |
180 | lpfc_sli_handle_slow_ring_event(phba, pring, |
181 | (ha_copy & |
182 | HA_RXMASK)); |
183 | pring->flag &= ~LPFC_DEFERRED_RING_EVENT; |
184 | } |
185 | /* |
186 | * Turn on Ring interrupts |
187 | */ |
188 | spin_lock_irq(phba->host->host_lock); |
189 | control = readl(phba->HCregaddr); |
190 | control |= (HC_R0INT_ENA << i); |
191 | writel(control, phba->HCregaddr); |
192 | readl(phba->HCregaddr); /* flush */ |
193 | spin_unlock_irq(phba->host->host_lock); |
194 | } |
195 | } |
196 | |
197 | lpfc_work_list_done (phba); |
198 | |
199 | } |
200 | |
201 | static int |
202 | check_work_wait_done(struct lpfc_hba *phba) { |
203 | |
204 | spin_lock_irq(phba->host->host_lock); |
205 | if (phba->work_ha || |
206 | phba->work_hba_events || |
207 | (!list_empty(&phba->work_list)) || |
208 | kthread_should_stop()) { |
209 | spin_unlock_irq(phba->host->host_lock); |
210 | return 1; |
211 | } else { |
212 | spin_unlock_irq(phba->host->host_lock); |
213 | return 0; |
214 | } |
215 | } |
216 | |
217 | int |
218 | lpfc_do_work(void *p) |
219 | { |
220 | struct lpfc_hba *phba = p; |
221 | int rc; |
222 | DECLARE_WAIT_QUEUE_HEAD(work_waitq); |
223 | |
224 | set_user_nice(current, -20); |
225 | phba->work_wait = &work_waitq; |
226 | |
227 | while (1) { |
228 | |
229 | rc = wait_event_interruptible(work_waitq, |
230 | check_work_wait_done(phba)); |
231 | BUG_ON(rc); |
232 | |
233 | if (kthread_should_stop()) |
234 | break; |
235 | |
236 | lpfc_work_done(phba); |
237 | |
238 | } |
239 | phba->work_wait = NULL; |
240 | return 0; |
241 | } |
242 | |
243 | /* |
244 | * This is only called to handle FC worker events. Since this a rare |
245 | * occurance, we allocate a struct lpfc_work_evt structure here instead of |
246 | * embedding it in the IOCB. |
247 | */ |
248 | int |
249 | lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2, |
250 | uint32_t evt) |
251 | { |
252 | struct lpfc_work_evt *evtp; |
253 | |
254 | /* |
255 | * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will |
256 | * be queued to worker thread for processing |
257 | */ |
258 | evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL); |
259 | if (!evtp) |
260 | return 0; |
261 | |
262 | evtp->evt_arg1 = arg1; |
263 | evtp->evt_arg2 = arg2; |
264 | evtp->evt = evt; |
265 | |
266 | list_add_tail(&evtp->evt_listp, &phba->work_list); |
267 | spin_lock_irq(phba->host->host_lock); |
268 | if (phba->work_wait) |
269 | wake_up(phba->work_wait); |
270 | spin_unlock_irq(phba->host->host_lock); |
271 | |
272 | return 1; |
273 | } |
274 | |
275 | int |
276 | lpfc_linkdown(struct lpfc_hba * phba) |
277 | { |
278 | struct lpfc_sli *psli; |
279 | struct lpfc_nodelist *ndlp, *next_ndlp; |
280 | struct list_head *listp; |
281 | struct list_head *node_list[7]; |
282 | LPFC_MBOXQ_t *mb; |
283 | int rc, i; |
284 | |
285 | psli = &phba->sli; |
286 | |
287 | spin_lock_irq(phba->host->host_lock); |
288 | phba->hba_state = LPFC_LINK_DOWN; |
289 | spin_unlock_irq(phba->host->host_lock); |
290 | |
291 | /* Clean up any firmware default rpi's */ |
292 | if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { |
293 | lpfc_unreg_did(phba, 0xffffffff, mb); |
294 | mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl; |
295 | if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB)) |
296 | == MBX_NOT_FINISHED) { |
297 | mempool_free( mb, phba->mbox_mem_pool); |
298 | } |
299 | } |
300 | |
301 | /* Cleanup any outstanding RSCN activity */ |
302 | lpfc_els_flush_rscn(phba); |
303 | |
304 | /* Cleanup any outstanding ELS commands */ |
305 | lpfc_els_flush_cmd(phba); |
306 | |
307 | /* Issue a LINK DOWN event to all nodes */ |
308 | node_list[0] = &phba->fc_npr_list; /* MUST do this list first */ |
309 | node_list[1] = &phba->fc_nlpmap_list; |
310 | node_list[2] = &phba->fc_nlpunmap_list; |
311 | node_list[3] = &phba->fc_prli_list; |
312 | node_list[4] = &phba->fc_reglogin_list; |
313 | node_list[5] = &phba->fc_adisc_list; |
314 | node_list[6] = &phba->fc_plogi_list; |
315 | for (i = 0; i < 7; i++) { |
316 | listp = node_list[i]; |
317 | if (list_empty(listp)) |
318 | continue; |
319 | |
320 | list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) { |
321 | /* Fabric nodes are not handled thru state machine for |
322 | link down */ |
323 | if (ndlp->nlp_type & NLP_FABRIC) { |
324 | /* Remove ALL Fabric nodes except Fabric_DID */ |
325 | if (ndlp->nlp_DID != Fabric_DID) { |
326 | /* Take it off current list and free */ |
327 | lpfc_nlp_list(phba, ndlp, |
328 | NLP_NO_LIST); |
329 | } |
330 | } |
331 | else { |
332 | |
333 | rc = lpfc_disc_state_machine(phba, ndlp, NULL, |
334 | NLP_EVT_DEVICE_RECOVERY); |
335 | |
336 | /* Check config parameter use-adisc or FCP-2 */ |
337 | if ((rc != NLP_STE_FREED_NODE) && |
338 | (phba->cfg_use_adisc == 0) && |
339 | !(ndlp->nlp_fcp_info & |
340 | NLP_FCP_2_DEVICE)) { |
341 | /* We know we will have to relogin, so |
342 | * unreglogin the rpi right now to fail |
343 | * any outstanding I/Os quickly. |
344 | */ |
345 | lpfc_unreg_rpi(phba, ndlp); |
346 | } |
347 | } |
348 | } |
349 | } |
350 | |
351 | /* free any ndlp's on unused list */ |
352 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list, |
353 | nlp_listp) { |
354 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
355 | } |
356 | |
357 | /* Setup myDID for link up if we are in pt2pt mode */ |
358 | if (phba->fc_flag & FC_PT2PT) { |
359 | phba->fc_myDID = 0; |
360 | if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { |
361 | lpfc_config_link(phba, mb); |
362 | mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl; |
363 | if (lpfc_sli_issue_mbox |
364 | (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB)) |
365 | == MBX_NOT_FINISHED) { |
366 | mempool_free( mb, phba->mbox_mem_pool); |
367 | } |
368 | } |
369 | spin_lock_irq(phba->host->host_lock); |
370 | phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); |
371 | spin_unlock_irq(phba->host->host_lock); |
372 | } |
373 | spin_lock_irq(phba->host->host_lock); |
374 | phba->fc_flag &= ~FC_LBIT; |
375 | spin_unlock_irq(phba->host->host_lock); |
376 | |
377 | /* Turn off discovery timer if its running */ |
378 | lpfc_can_disctmo(phba); |
379 | |
380 | /* Must process IOCBs on all rings to handle ABORTed I/Os */ |
381 | return (0); |
382 | } |
383 | |
384 | static int |
385 | lpfc_linkup(struct lpfc_hba * phba) |
386 | { |
387 | struct lpfc_nodelist *ndlp, *next_ndlp; |
388 | |
389 | spin_lock_irq(phba->host->host_lock); |
390 | phba->hba_state = LPFC_LINK_UP; |
391 | phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | |
392 | FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); |
393 | phba->fc_flag |= FC_NDISC_ACTIVE; |
394 | phba->fc_ns_retry = 0; |
395 | spin_unlock_irq(phba->host->host_lock); |
396 | |
397 | |
398 | /* |
399 | * Clean up old Fabric NLP_FABRIC logins. |
400 | */ |
401 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list, |
402 | nlp_listp) { |
403 | if (ndlp->nlp_DID == Fabric_DID) { |
404 | /* Take it off current list and free */ |
405 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
406 | } |
407 | } |
408 | |
409 | /* free any ndlp's on unused list */ |
410 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list, |
411 | nlp_listp) { |
412 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
413 | } |
414 | |
415 | return 0; |
416 | } |
417 | |
418 | /* |
419 | * This routine handles processing a CLEAR_LA mailbox |
420 | * command upon completion. It is setup in the LPFC_MBOXQ |
421 | * as the completion routine when the command is |
422 | * handed off to the SLI layer. |
423 | */ |
424 | void |
425 | lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
426 | { |
427 | struct lpfc_sli *psli; |
428 | MAILBOX_t *mb; |
429 | uint32_t control; |
430 | |
431 | psli = &phba->sli; |
432 | mb = &pmb->mb; |
433 | /* Since we don't do discovery right now, turn these off here */ |
434 | psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT; |
435 | psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT; |
436 | psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT; |
437 | |
438 | /* Check for error */ |
439 | if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { |
440 | /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ |
441 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, |
442 | "%d:0320 CLEAR_LA mbxStatus error x%x hba " |
443 | "state x%x\n", |
444 | phba->brd_no, mb->mbxStatus, phba->hba_state); |
445 | |
446 | phba->hba_state = LPFC_HBA_ERROR; |
447 | goto out; |
448 | } |
449 | |
450 | if (phba->fc_flag & FC_ABORT_DISCOVERY) |
451 | goto out; |
452 | |
453 | phba->num_disc_nodes = 0; |
454 | /* go thru NPR list and issue ELS PLOGIs */ |
455 | if (phba->fc_npr_cnt) { |
456 | lpfc_els_disc_plogi(phba); |
457 | } |
458 | |
459 | if(!phba->num_disc_nodes) { |
460 | spin_lock_irq(phba->host->host_lock); |
461 | phba->fc_flag &= ~FC_NDISC_ACTIVE; |
462 | spin_unlock_irq(phba->host->host_lock); |
463 | } |
464 | |
465 | phba->hba_state = LPFC_HBA_READY; |
466 | |
467 | out: |
468 | /* Device Discovery completes */ |
469 | lpfc_printf_log(phba, |
470 | KERN_INFO, |
471 | LOG_DISCOVERY, |
472 | "%d:0225 Device Discovery completes\n", |
473 | phba->brd_no); |
474 | |
475 | mempool_free( pmb, phba->mbox_mem_pool); |
476 | |
477 | spin_lock_irq(phba->host->host_lock); |
478 | phba->fc_flag &= ~FC_ABORT_DISCOVERY; |
479 | if (phba->fc_flag & FC_ESTABLISH_LINK) { |
480 | phba->fc_flag &= ~FC_ESTABLISH_LINK; |
481 | } |
482 | spin_unlock_irq(phba->host->host_lock); |
483 | |
484 | del_timer_sync(&phba->fc_estabtmo); |
485 | |
486 | lpfc_can_disctmo(phba); |
487 | |
488 | /* turn on Link Attention interrupts */ |
489 | spin_lock_irq(phba->host->host_lock); |
490 | psli->sli_flag |= LPFC_PROCESS_LA; |
491 | control = readl(phba->HCregaddr); |
492 | control |= HC_LAINT_ENA; |
493 | writel(control, phba->HCregaddr); |
494 | readl(phba->HCregaddr); /* flush */ |
495 | spin_unlock_irq(phba->host->host_lock); |
496 | |
497 | return; |
498 | } |
499 | |
500 | static void |
501 | lpfc_mbx_cmpl_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
502 | { |
503 | struct lpfc_sli *psli; |
504 | MAILBOX_t *mb; |
505 | |
506 | psli = &phba->sli; |
507 | mb = &pmb->mb; |
508 | /* Check for error */ |
509 | if (mb->mbxStatus) { |
510 | /* CONFIG_LINK mbox error <mbxStatus> state <hba_state> */ |
511 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, |
512 | "%d:0306 CONFIG_LINK mbxStatus error x%x " |
513 | "HBA state x%x\n", |
514 | phba->brd_no, mb->mbxStatus, phba->hba_state); |
515 | |
516 | lpfc_linkdown(phba); |
517 | phba->hba_state = LPFC_HBA_ERROR; |
518 | goto out; |
519 | } |
520 | |
521 | if (phba->hba_state == LPFC_LOCAL_CFG_LINK) { |
522 | if (phba->fc_topology == TOPOLOGY_LOOP) { |
523 | /* If we are public loop and L bit was set */ |
524 | if ((phba->fc_flag & FC_PUBLIC_LOOP) && |
525 | !(phba->fc_flag & FC_LBIT)) { |
526 | /* Need to wait for FAN - use discovery timer |
527 | * for timeout. hba_state is identically |
528 | * LPFC_LOCAL_CFG_LINK while waiting for FAN |
529 | */ |
530 | lpfc_set_disctmo(phba); |
531 | mempool_free( pmb, phba->mbox_mem_pool); |
532 | return; |
533 | } |
534 | } |
535 | |
536 | /* Start discovery by sending a FLOGI hba_state is identically |
537 | * LPFC_FLOGI while waiting for FLOGI cmpl |
538 | */ |
539 | phba->hba_state = LPFC_FLOGI; |
540 | lpfc_set_disctmo(phba); |
541 | lpfc_initial_flogi(phba); |
542 | mempool_free( pmb, phba->mbox_mem_pool); |
543 | return; |
544 | } |
545 | if (phba->hba_state == LPFC_FABRIC_CFG_LINK) { |
546 | mempool_free( pmb, phba->mbox_mem_pool); |
547 | return; |
548 | } |
549 | |
550 | out: |
551 | /* CONFIG_LINK bad hba state <hba_state> */ |
552 | lpfc_printf_log(phba, |
553 | KERN_ERR, |
554 | LOG_DISCOVERY, |
555 | "%d:0200 CONFIG_LINK bad hba state x%x\n", |
556 | phba->brd_no, phba->hba_state); |
557 | |
558 | if (phba->hba_state != LPFC_CLEAR_LA) { |
559 | lpfc_clear_la(phba, pmb); |
560 | pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la; |
561 | if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB)) |
562 | == MBX_NOT_FINISHED) { |
563 | mempool_free( pmb, phba->mbox_mem_pool); |
564 | lpfc_disc_flush_list(phba); |
565 | psli->ring[(psli->ip_ring)].flag &= |
566 | ~LPFC_STOP_IOCB_EVENT; |
567 | psli->ring[(psli->fcp_ring)].flag &= |
568 | ~LPFC_STOP_IOCB_EVENT; |
569 | psli->ring[(psli->next_ring)].flag &= |
570 | ~LPFC_STOP_IOCB_EVENT; |
571 | phba->hba_state = LPFC_HBA_READY; |
572 | } |
573 | } else { |
574 | mempool_free( pmb, phba->mbox_mem_pool); |
575 | } |
576 | return; |
577 | } |
578 | |
579 | static void |
580 | lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
581 | { |
582 | struct lpfc_sli *psli = &phba->sli; |
583 | MAILBOX_t *mb = &pmb->mb; |
584 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; |
585 | |
586 | |
587 | /* Check for error */ |
588 | if (mb->mbxStatus) { |
589 | /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ |
590 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, |
591 | "%d:0319 READ_SPARAM mbxStatus error x%x " |
592 | "hba state x%x>\n", |
593 | phba->brd_no, mb->mbxStatus, phba->hba_state); |
594 | |
595 | lpfc_linkdown(phba); |
596 | phba->hba_state = LPFC_HBA_ERROR; |
597 | goto out; |
598 | } |
599 | |
600 | memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt, |
601 | sizeof (struct serv_parm)); |
602 | memcpy((uint8_t *) & phba->fc_nodename, |
603 | (uint8_t *) & phba->fc_sparam.nodeName, |
604 | sizeof (struct lpfc_name)); |
605 | memcpy((uint8_t *) & phba->fc_portname, |
606 | (uint8_t *) & phba->fc_sparam.portName, |
607 | sizeof (struct lpfc_name)); |
608 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
609 | kfree(mp); |
610 | mempool_free( pmb, phba->mbox_mem_pool); |
611 | return; |
612 | |
613 | out: |
614 | pmb->context1 = NULL; |
615 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
616 | kfree(mp); |
617 | if (phba->hba_state != LPFC_CLEAR_LA) { |
618 | lpfc_clear_la(phba, pmb); |
619 | pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la; |
620 | if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB)) |
621 | == MBX_NOT_FINISHED) { |
622 | mempool_free( pmb, phba->mbox_mem_pool); |
623 | lpfc_disc_flush_list(phba); |
624 | psli->ring[(psli->ip_ring)].flag &= |
625 | ~LPFC_STOP_IOCB_EVENT; |
626 | psli->ring[(psli->fcp_ring)].flag &= |
627 | ~LPFC_STOP_IOCB_EVENT; |
628 | psli->ring[(psli->next_ring)].flag &= |
629 | ~LPFC_STOP_IOCB_EVENT; |
630 | phba->hba_state = LPFC_HBA_READY; |
631 | } |
632 | } else { |
633 | mempool_free( pmb, phba->mbox_mem_pool); |
634 | } |
635 | return; |
636 | } |
637 | |
638 | static void |
639 | lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la) |
640 | { |
641 | int i; |
642 | LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox; |
643 | sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
644 | cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
645 | |
646 | spin_lock_irq(phba->host->host_lock); |
647 | switch(la->UlnkSpeed) { |
648 | case LA_1GHZ_LINK: |
649 | phba->fc_linkspeed = LA_1GHZ_LINK; |
650 | break; |
651 | case LA_2GHZ_LINK: |
652 | phba->fc_linkspeed = LA_2GHZ_LINK; |
653 | break; |
654 | case LA_4GHZ_LINK: |
655 | phba->fc_linkspeed = LA_4GHZ_LINK; |
656 | break; |
657 | default: |
658 | phba->fc_linkspeed = LA_UNKNW_LINK; |
659 | break; |
660 | } |
661 | |
662 | phba->fc_topology = la->topology; |
663 | |
664 | if (phba->fc_topology == TOPOLOGY_LOOP) { |
665 | /* Get Loop Map information */ |
666 | |
667 | if (la->il) |
668 | phba->fc_flag |= FC_LBIT; |
669 | |
670 | phba->fc_myDID = la->granted_AL_PA; |
671 | i = la->un.lilpBde64.tus.f.bdeSize; |
672 | |
673 | if (i == 0) { |
674 | phba->alpa_map[0] = 0; |
675 | } else { |
676 | if (phba->cfg_log_verbose & LOG_LINK_EVENT) { |
677 | int numalpa, j, k; |
678 | union { |
679 | uint8_t pamap[16]; |
680 | struct { |
681 | uint32_t wd1; |
682 | uint32_t wd2; |
683 | uint32_t wd3; |
684 | uint32_t wd4; |
685 | } pa; |
686 | } un; |
687 | numalpa = phba->alpa_map[0]; |
688 | j = 0; |
689 | while (j < numalpa) { |
690 | memset(un.pamap, 0, 16); |
691 | for (k = 1; j < numalpa; k++) { |
692 | un.pamap[k - 1] = |
693 | phba->alpa_map[j + 1]; |
694 | j++; |
695 | if (k == 16) |
696 | break; |
697 | } |
698 | /* Link Up Event ALPA map */ |
699 | lpfc_printf_log(phba, |
700 | KERN_WARNING, |
701 | LOG_LINK_EVENT, |
702 | "%d:1304 Link Up Event " |
703 | "ALPA map Data: x%x " |
704 | "x%x x%x x%x\n", |
705 | phba->brd_no, |
706 | un.pa.wd1, un.pa.wd2, |
707 | un.pa.wd3, un.pa.wd4); |
708 | } |
709 | } |
710 | } |
711 | } else { |
712 | phba->fc_myDID = phba->fc_pref_DID; |
713 | phba->fc_flag |= FC_LBIT; |
714 | } |
715 | spin_unlock_irq(phba->host->host_lock); |
716 | |
717 | lpfc_linkup(phba); |
718 | if (sparam_mbox) { |
719 | lpfc_read_sparam(phba, sparam_mbox); |
720 | sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; |
721 | lpfc_sli_issue_mbox(phba, sparam_mbox, |
722 | (MBX_NOWAIT | MBX_STOP_IOCB)); |
723 | } |
724 | |
725 | if (cfglink_mbox) { |
726 | phba->hba_state = LPFC_LOCAL_CFG_LINK; |
727 | lpfc_config_link(phba, cfglink_mbox); |
728 | cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_config_link; |
729 | lpfc_sli_issue_mbox(phba, cfglink_mbox, |
730 | (MBX_NOWAIT | MBX_STOP_IOCB)); |
731 | } |
732 | } |
733 | |
734 | static void |
735 | lpfc_mbx_issue_link_down(struct lpfc_hba *phba) { |
736 | uint32_t control; |
737 | struct lpfc_sli *psli = &phba->sli; |
738 | |
739 | lpfc_linkdown(phba); |
740 | |
741 | /* turn on Link Attention interrupts - no CLEAR_LA needed */ |
742 | spin_lock_irq(phba->host->host_lock); |
743 | psli->sli_flag |= LPFC_PROCESS_LA; |
744 | control = readl(phba->HCregaddr); |
745 | control |= HC_LAINT_ENA; |
746 | writel(control, phba->HCregaddr); |
747 | readl(phba->HCregaddr); /* flush */ |
748 | spin_unlock_irq(phba->host->host_lock); |
749 | } |
750 | |
751 | /* |
752 | * This routine handles processing a READ_LA mailbox |
753 | * command upon completion. It is setup in the LPFC_MBOXQ |
754 | * as the completion routine when the command is |
755 | * handed off to the SLI layer. |
756 | */ |
757 | void |
758 | lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
759 | { |
760 | READ_LA_VAR *la; |
761 | MAILBOX_t *mb = &pmb->mb; |
762 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); |
763 | |
764 | /* Check for error */ |
765 | if (mb->mbxStatus) { |
766 | lpfc_printf_log(phba, |
767 | KERN_INFO, |
768 | LOG_LINK_EVENT, |
769 | "%d:1307 READ_LA mbox error x%x state x%x\n", |
770 | phba->brd_no, |
771 | mb->mbxStatus, phba->hba_state); |
772 | lpfc_mbx_issue_link_down(phba); |
773 | phba->hba_state = LPFC_HBA_ERROR; |
774 | goto lpfc_mbx_cmpl_read_la_free_mbuf; |
775 | } |
776 | |
777 | la = (READ_LA_VAR *) & pmb->mb.un.varReadLA; |
778 | |
779 | memcpy(&phba->alpa_map[0], mp->virt, 128); |
780 | |
781 | if (((phba->fc_eventTag + 1) < la->eventTag) || |
782 | (phba->fc_eventTag == la->eventTag)) { |
783 | phba->fc_stat.LinkMultiEvent++; |
784 | if (la->attType == AT_LINK_UP) { |
785 | if (phba->fc_eventTag != 0) |
786 | lpfc_linkdown(phba); |
787 | } |
788 | } |
789 | |
790 | phba->fc_eventTag = la->eventTag; |
791 | |
792 | if (la->attType == AT_LINK_UP) { |
793 | phba->fc_stat.LinkUp++; |
794 | lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, |
795 | "%d:1303 Link Up Event x%x received " |
796 | "Data: x%x x%x x%x x%x\n", |
797 | phba->brd_no, la->eventTag, phba->fc_eventTag, |
798 | la->granted_AL_PA, la->UlnkSpeed, |
799 | phba->alpa_map[0]); |
800 | lpfc_mbx_process_link_up(phba, la); |
801 | } else { |
802 | phba->fc_stat.LinkDown++; |
803 | lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, |
804 | "%d:1305 Link Down Event x%x received " |
805 | "Data: x%x x%x x%x\n", |
806 | phba->brd_no, la->eventTag, phba->fc_eventTag, |
807 | phba->hba_state, phba->fc_flag); |
808 | lpfc_mbx_issue_link_down(phba); |
809 | } |
810 | |
811 | lpfc_mbx_cmpl_read_la_free_mbuf: |
812 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
813 | kfree(mp); |
814 | mempool_free(pmb, phba->mbox_mem_pool); |
815 | return; |
816 | } |
817 | |
818 | /* |
819 | * This routine handles processing a REG_LOGIN mailbox |
820 | * command upon completion. It is setup in the LPFC_MBOXQ |
821 | * as the completion routine when the command is |
822 | * handed off to the SLI layer. |
823 | */ |
824 | void |
825 | lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
826 | { |
827 | struct lpfc_sli *psli; |
828 | MAILBOX_t *mb; |
829 | struct lpfc_dmabuf *mp; |
830 | struct lpfc_nodelist *ndlp; |
831 | |
832 | psli = &phba->sli; |
833 | mb = &pmb->mb; |
834 | |
835 | ndlp = (struct lpfc_nodelist *) pmb->context2; |
836 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
837 | |
838 | pmb->context1 = NULL; |
839 | |
840 | /* Good status, call state machine */ |
841 | lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); |
842 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
843 | kfree(mp); |
844 | mempool_free( pmb, phba->mbox_mem_pool); |
845 | |
846 | return; |
847 | } |
848 | |
849 | /* |
850 | * This routine handles processing a Fabric REG_LOGIN mailbox |
851 | * command upon completion. It is setup in the LPFC_MBOXQ |
852 | * as the completion routine when the command is |
853 | * handed off to the SLI layer. |
854 | */ |
855 | void |
856 | lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
857 | { |
858 | struct lpfc_sli *psli; |
859 | MAILBOX_t *mb; |
860 | struct lpfc_dmabuf *mp; |
861 | struct lpfc_nodelist *ndlp; |
862 | struct lpfc_nodelist *ndlp_fdmi; |
863 | |
864 | |
865 | psli = &phba->sli; |
866 | mb = &pmb->mb; |
867 | |
868 | ndlp = (struct lpfc_nodelist *) pmb->context2; |
869 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
870 | |
871 | if (mb->mbxStatus) { |
872 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
873 | kfree(mp); |
874 | mempool_free( pmb, phba->mbox_mem_pool); |
875 | mempool_free( ndlp, phba->nlp_mem_pool); |
876 | |
877 | /* FLOGI failed, so just use loop map to make discovery list */ |
878 | lpfc_disc_list_loopmap(phba); |
879 | |
880 | /* Start discovery */ |
881 | lpfc_disc_start(phba); |
882 | return; |
883 | } |
884 | |
885 | pmb->context1 = NULL; |
886 | |
887 | if (ndlp->nlp_rpi != 0) |
888 | lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi); |
889 | ndlp->nlp_rpi = mb->un.varWords[0]; |
890 | lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi); |
891 | ndlp->nlp_type |= NLP_FABRIC; |
892 | ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; |
893 | lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); |
894 | |
895 | if (phba->hba_state == LPFC_FABRIC_CFG_LINK) { |
896 | /* This NPort has been assigned an NPort_ID by the fabric as a |
897 | * result of the completed fabric login. Issue a State Change |
898 | * Registration (SCR) ELS request to the fabric controller |
899 | * (SCR_DID) so that this NPort gets RSCN events from the |
900 | * fabric. |
901 | */ |
902 | lpfc_issue_els_scr(phba, SCR_DID, 0); |
903 | |
904 | /* Allocate a new node instance. If the pool is empty, just |
905 | * start the discovery process and skip the Nameserver login |
906 | * process. This is attempted again later on. Otherwise, issue |
907 | * a Port Login (PLOGI) to the NameServer |
908 | */ |
909 | if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL)) |
910 | == 0) { |
911 | lpfc_disc_start(phba); |
912 | } else { |
913 | lpfc_nlp_init(phba, ndlp, NameServer_DID); |
914 | ndlp->nlp_type |= NLP_FABRIC; |
915 | ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; |
916 | lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); |
917 | lpfc_issue_els_plogi(phba, ndlp, 0); |
918 | if (phba->cfg_fdmi_on) { |
919 | if ((ndlp_fdmi = mempool_alloc( |
920 | phba->nlp_mem_pool, |
921 | GFP_KERNEL))) { |
922 | lpfc_nlp_init(phba, ndlp_fdmi, |
923 | FDMI_DID); |
924 | ndlp_fdmi->nlp_type |= NLP_FABRIC; |
925 | ndlp_fdmi->nlp_state = |
926 | NLP_STE_PLOGI_ISSUE; |
927 | lpfc_issue_els_plogi(phba, ndlp_fdmi, |
928 | 0); |
929 | } |
930 | } |
931 | } |
932 | } |
933 | |
934 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
935 | kfree(mp); |
936 | mempool_free( pmb, phba->mbox_mem_pool); |
937 | |
938 | return; |
939 | } |
940 | |
941 | /* |
942 | * This routine handles processing a NameServer REG_LOGIN mailbox |
943 | * command upon completion. It is setup in the LPFC_MBOXQ |
944 | * as the completion routine when the command is |
945 | * handed off to the SLI layer. |
946 | */ |
947 | void |
948 | lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
949 | { |
950 | struct lpfc_sli *psli; |
951 | MAILBOX_t *mb; |
952 | struct lpfc_dmabuf *mp; |
953 | struct lpfc_nodelist *ndlp; |
954 | |
955 | psli = &phba->sli; |
956 | mb = &pmb->mb; |
957 | |
958 | ndlp = (struct lpfc_nodelist *) pmb->context2; |
959 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
960 | |
961 | if (mb->mbxStatus) { |
962 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
963 | kfree(mp); |
964 | mempool_free( pmb, phba->mbox_mem_pool); |
965 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
966 | |
967 | /* RegLogin failed, so just use loop map to make discovery |
968 | list */ |
969 | lpfc_disc_list_loopmap(phba); |
970 | |
971 | /* Start discovery */ |
972 | lpfc_disc_start(phba); |
973 | return; |
974 | } |
975 | |
976 | pmb->context1 = NULL; |
977 | |
978 | if (ndlp->nlp_rpi != 0) |
979 | lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi); |
980 | ndlp->nlp_rpi = mb->un.varWords[0]; |
981 | lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi); |
982 | ndlp->nlp_type |= NLP_FABRIC; |
983 | ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; |
984 | lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); |
985 | |
986 | if (phba->hba_state < LPFC_HBA_READY) { |
987 | /* Link up discovery requires Fabrib registration. */ |
988 | lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID); |
989 | lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN); |
990 | lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID); |
991 | } |
992 | |
993 | phba->fc_ns_retry = 0; |
994 | /* Good status, issue CT Request to NameServer */ |
995 | if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) { |
996 | /* Cannot issue NameServer Query, so finish up discovery */ |
997 | lpfc_disc_start(phba); |
998 | } |
999 | |
1000 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
1001 | kfree(mp); |
1002 | mempool_free( pmb, phba->mbox_mem_pool); |
1003 | |
1004 | return; |
1005 | } |
1006 | |
1007 | static void |
1008 | lpfc_register_remote_port(struct lpfc_hba * phba, |
1009 | struct lpfc_nodelist * ndlp) |
1010 | { |
1011 | struct fc_rport *rport; |
1012 | struct lpfc_rport_data *rdata; |
1013 | struct fc_rport_identifiers rport_ids; |
1014 | uint64_t wwn; |
1015 | |
1016 | /* Remote port has reappeared. Re-register w/ FC transport */ |
1017 | memcpy(&wwn, &ndlp->nlp_nodename, sizeof(uint64_t)); |
1018 | rport_ids.node_name = be64_to_cpu(wwn); |
1019 | memcpy(&wwn, &ndlp->nlp_portname, sizeof(uint64_t)); |
1020 | rport_ids.port_name = be64_to_cpu(wwn); |
1021 | rport_ids.port_id = ndlp->nlp_DID; |
1022 | rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; |
1023 | if (ndlp->nlp_type & NLP_FCP_TARGET) |
1024 | rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; |
1025 | if (ndlp->nlp_type & NLP_FCP_INITIATOR) |
1026 | rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; |
1027 | |
1028 | ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids); |
1029 | if (!rport) { |
1030 | dev_printk(KERN_WARNING, &phba->pcidev->dev, |
1031 | "Warning: fc_remote_port_add failed\n"); |
1032 | return; |
1033 | } |
1034 | |
1035 | /* initialize static port data */ |
1036 | rport->maxframe_size = ndlp->nlp_maxframe; |
1037 | rport->supported_classes = ndlp->nlp_class_sup; |
1038 | if ((rport->scsi_target_id != -1) && |
1039 | (rport->scsi_target_id < MAX_FCP_TARGET)) { |
1040 | ndlp->nlp_sid = rport->scsi_target_id; |
1041 | } |
1042 | rdata = rport->dd_data; |
1043 | rdata->pnode = ndlp; |
1044 | |
1045 | return; |
1046 | } |
1047 | |
1048 | int |
1049 | lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list) |
1050 | { |
1051 | enum { none, unmapped, mapped } rport_add = none, rport_del = none; |
1052 | struct lpfc_sli *psli; |
1053 | |
1054 | psli = &phba->sli; |
1055 | /* Sanity check to ensure we are not moving to / from the same list */ |
1056 | if ((nlp->nlp_flag & NLP_LIST_MASK) == list) { |
1057 | if (list != NLP_NO_LIST) |
1058 | return(0); |
1059 | } |
1060 | |
1061 | switch(nlp->nlp_flag & NLP_LIST_MASK) { |
1062 | case NLP_NO_LIST: /* Not on any list */ |
1063 | break; |
1064 | case NLP_UNUSED_LIST: |
1065 | phba->fc_unused_cnt--; |
1066 | list_del(&nlp->nlp_listp); |
1067 | break; |
1068 | case NLP_PLOGI_LIST: |
1069 | phba->fc_plogi_cnt--; |
1070 | list_del(&nlp->nlp_listp); |
1071 | break; |
1072 | case NLP_ADISC_LIST: |
1073 | phba->fc_adisc_cnt--; |
1074 | list_del(&nlp->nlp_listp); |
1075 | break; |
1076 | case NLP_REGLOGIN_LIST: |
1077 | phba->fc_reglogin_cnt--; |
1078 | list_del(&nlp->nlp_listp); |
1079 | break; |
1080 | case NLP_PRLI_LIST: |
1081 | phba->fc_prli_cnt--; |
1082 | list_del(&nlp->nlp_listp); |
1083 | break; |
1084 | case NLP_UNMAPPED_LIST: |
1085 | phba->fc_unmap_cnt--; |
1086 | list_del(&nlp->nlp_listp); |
1087 | spin_lock_irq(phba->host->host_lock); |
1088 | nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; |
1089 | nlp->nlp_type &= ~NLP_FC_NODE; |
1090 | spin_unlock_irq(phba->host->host_lock); |
1091 | phba->nport_event_cnt++; |
1092 | if (nlp->rport) |
1093 | rport_del = unmapped; |
1094 | break; |
1095 | case NLP_MAPPED_LIST: |
1096 | phba->fc_map_cnt--; |
1097 | list_del(&nlp->nlp_listp); |
1098 | phba->nport_event_cnt++; |
1099 | if (nlp->rport) |
1100 | rport_del = mapped; |
1101 | break; |
1102 | case NLP_NPR_LIST: |
1103 | phba->fc_npr_cnt--; |
1104 | list_del(&nlp->nlp_listp); |
1105 | /* Stop delay tmo if taking node off NPR list */ |
1106 | if ((nlp->nlp_flag & NLP_DELAY_TMO) && |
1107 | (list != NLP_NPR_LIST)) { |
1108 | spin_lock_irq(phba->host->host_lock); |
1109 | nlp->nlp_flag &= ~NLP_DELAY_TMO; |
1110 | spin_unlock_irq(phba->host->host_lock); |
1111 | del_timer_sync(&nlp->nlp_delayfunc); |
1112 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) |
1113 | list_del_init(&nlp->els_retry_evt.evt_listp); |
1114 | } |
1115 | break; |
1116 | } |
1117 | |
1118 | spin_lock_irq(phba->host->host_lock); |
1119 | nlp->nlp_flag &= ~NLP_LIST_MASK; |
1120 | spin_unlock_irq(phba->host->host_lock); |
1121 | |
1122 | /* Add NPort <did> to <num> list */ |
1123 | lpfc_printf_log(phba, |
1124 | KERN_INFO, |
1125 | LOG_NODE, |
1126 | "%d:0904 Add NPort x%x to %d list Data: x%x\n", |
1127 | phba->brd_no, |
1128 | nlp->nlp_DID, list, nlp->nlp_flag); |
1129 | |
1130 | switch(list) { |
1131 | case NLP_NO_LIST: /* No list, just remove it */ |
1132 | lpfc_nlp_remove(phba, nlp); |
1133 | break; |
1134 | case NLP_UNUSED_LIST: |
1135 | spin_lock_irq(phba->host->host_lock); |
1136 | nlp->nlp_flag |= list; |
1137 | spin_unlock_irq(phba->host->host_lock); |
1138 | /* Put it at the end of the unused list */ |
1139 | list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list); |
1140 | phba->fc_unused_cnt++; |
1141 | break; |
1142 | case NLP_PLOGI_LIST: |
1143 | spin_lock_irq(phba->host->host_lock); |
1144 | nlp->nlp_flag |= list; |
1145 | spin_unlock_irq(phba->host->host_lock); |
1146 | /* Put it at the end of the plogi list */ |
1147 | list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list); |
1148 | phba->fc_plogi_cnt++; |
1149 | break; |
1150 | case NLP_ADISC_LIST: |
1151 | spin_lock_irq(phba->host->host_lock); |
1152 | nlp->nlp_flag |= list; |
1153 | spin_unlock_irq(phba->host->host_lock); |
1154 | /* Put it at the end of the adisc list */ |
1155 | list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list); |
1156 | phba->fc_adisc_cnt++; |
1157 | break; |
1158 | case NLP_REGLOGIN_LIST: |
1159 | spin_lock_irq(phba->host->host_lock); |
1160 | nlp->nlp_flag |= list; |
1161 | spin_unlock_irq(phba->host->host_lock); |
1162 | /* Put it at the end of the reglogin list */ |
1163 | list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list); |
1164 | phba->fc_reglogin_cnt++; |
1165 | break; |
1166 | case NLP_PRLI_LIST: |
1167 | spin_lock_irq(phba->host->host_lock); |
1168 | nlp->nlp_flag |= list; |
1169 | spin_unlock_irq(phba->host->host_lock); |
1170 | /* Put it at the end of the prli list */ |
1171 | list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list); |
1172 | phba->fc_prli_cnt++; |
1173 | break; |
1174 | case NLP_UNMAPPED_LIST: |
1175 | rport_add = unmapped; |
1176 | /* ensure all vestiges of "mapped" significance are gone */ |
1177 | nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); |
1178 | spin_lock_irq(phba->host->host_lock); |
1179 | nlp->nlp_flag |= list; |
1180 | spin_unlock_irq(phba->host->host_lock); |
1181 | /* Put it at the end of the unmap list */ |
1182 | list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list); |
1183 | phba->fc_unmap_cnt++; |
1184 | phba->nport_event_cnt++; |
1185 | /* stop nodev tmo if running */ |
1186 | if (nlp->nlp_flag & NLP_NODEV_TMO) { |
1187 | spin_lock_irq(phba->host->host_lock); |
1188 | nlp->nlp_flag &= ~NLP_NODEV_TMO; |
1189 | spin_unlock_irq(phba->host->host_lock); |
1190 | del_timer_sync(&nlp->nlp_tmofunc); |
1191 | if (!list_empty(&nlp->nodev_timeout_evt.evt_listp)) |
1192 | list_del_init(&nlp->nodev_timeout_evt. |
1193 | evt_listp); |
1194 | |
1195 | } |
1196 | nlp->nlp_type |= NLP_FC_NODE; |
1197 | break; |
1198 | case NLP_MAPPED_LIST: |
1199 | rport_add = mapped; |
1200 | spin_lock_irq(phba->host->host_lock); |
1201 | nlp->nlp_flag |= list; |
1202 | spin_unlock_irq(phba->host->host_lock); |
1203 | /* Put it at the end of the map list */ |
1204 | list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list); |
1205 | phba->fc_map_cnt++; |
1206 | phba->nport_event_cnt++; |
1207 | /* stop nodev tmo if running */ |
1208 | if (nlp->nlp_flag & NLP_NODEV_TMO) { |
1209 | nlp->nlp_flag &= ~NLP_NODEV_TMO; |
1210 | del_timer_sync(&nlp->nlp_tmofunc); |
1211 | if (!list_empty(&nlp->nodev_timeout_evt.evt_listp)) |
1212 | list_del_init(&nlp->nodev_timeout_evt. |
1213 | evt_listp); |
1214 | |
1215 | } |
1216 | break; |
1217 | case NLP_NPR_LIST: |
1218 | spin_lock_irq(phba->host->host_lock); |
1219 | nlp->nlp_flag |= list; |
1220 | spin_unlock_irq(phba->host->host_lock); |
1221 | /* Put it at the end of the npr list */ |
1222 | list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list); |
1223 | phba->fc_npr_cnt++; |
1224 | |
1225 | /* |
1226 | * Sanity check for Fabric entity. |
1227 | * Set nodev_tmo for NPR state, for Fabric use 1 sec. |
1228 | */ |
1229 | if (nlp->nlp_type & NLP_FABRIC) { |
1230 | mod_timer(&nlp->nlp_tmofunc, jiffies + HZ); |
1231 | } |
1232 | else { |
1233 | mod_timer(&nlp->nlp_tmofunc, |
1234 | jiffies + HZ * phba->cfg_nodev_tmo); |
1235 | } |
1236 | spin_lock_irq(phba->host->host_lock); |
1237 | nlp->nlp_flag |= NLP_NODEV_TMO; |
1238 | nlp->nlp_flag &= ~NLP_RCV_PLOGI; |
1239 | spin_unlock_irq(phba->host->host_lock); |
1240 | break; |
1241 | case NLP_JUST_DQ: |
1242 | break; |
1243 | } |
1244 | |
1245 | /* |
1246 | * We make all the calls into the transport after we have |
1247 | * moved the node between lists. This so that we don't |
1248 | * release the lock while in-between lists. |
1249 | */ |
1250 | |
1251 | /* Don't upcall midlayer if we're unloading */ |
1252 | if (!(phba->fc_flag & FC_UNLOADING)) { |
1253 | /* |
1254 | * We revalidate the rport pointer as the "add" function |
1255 | * may have removed the remote port. |
1256 | */ |
1257 | if ((rport_del != none) && nlp->rport) |
1258 | fc_remote_port_block(nlp->rport); |
1259 | |
1260 | if (rport_add != none) { |
1261 | /* |
1262 | * Tell the fc transport about the port, if we haven't |
1263 | * already. If we have, and it's a scsi entity, be |
1264 | * sure to unblock any attached scsi devices |
1265 | */ |
1266 | if (!nlp->rport) |
1267 | lpfc_register_remote_port(phba, nlp); |
1268 | else |
1269 | fc_remote_port_unblock(nlp->rport); |
1270 | |
1271 | /* |
1272 | * if we added to Mapped list, but the remote port |
1273 | * registration failed or assigned a target id outside |
1274 | * our presentable range - move the node to the |
1275 | * Unmapped List |
1276 | */ |
1277 | if ((rport_add == mapped) && |
1278 | ((!nlp->rport) || |
1279 | (nlp->rport->scsi_target_id == -1) || |
1280 | (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) { |
1281 | nlp->nlp_state = NLP_STE_UNMAPPED_NODE; |
1282 | spin_lock_irq(phba->host->host_lock); |
1283 | nlp->nlp_flag |= NLP_TGT_NO_SCSIID; |
1284 | spin_unlock_irq(phba->host->host_lock); |
1285 | lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST); |
1286 | } |
1287 | } |
1288 | } |
1289 | return (0); |
1290 | } |
1291 | |
1292 | /* |
1293 | * Start / ReStart rescue timer for Discovery / RSCN handling |
1294 | */ |
1295 | void |
1296 | lpfc_set_disctmo(struct lpfc_hba * phba) |
1297 | { |
1298 | uint32_t tmo; |
1299 | |
1300 | tmo = ((phba->fc_ratov * 2) + 1); |
1301 | |
1302 | mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo); |
1303 | spin_lock_irq(phba->host->host_lock); |
1304 | phba->fc_flag |= FC_DISC_TMO; |
1305 | spin_unlock_irq(phba->host->host_lock); |
1306 | |
1307 | /* Start Discovery Timer state <hba_state> */ |
1308 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, |
1309 | "%d:0247 Start Discovery Timer state x%x " |
1310 | "Data: x%x x%lx x%x x%x\n", |
1311 | phba->brd_no, |
1312 | phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo, |
1313 | phba->fc_plogi_cnt, phba->fc_adisc_cnt); |
1314 | |
1315 | return; |
1316 | } |
1317 | |
1318 | /* |
1319 | * Cancel rescue timer for Discovery / RSCN handling |
1320 | */ |
1321 | int |
1322 | lpfc_can_disctmo(struct lpfc_hba * phba) |
1323 | { |
1324 | /* Turn off discovery timer if its running */ |
1325 | if (phba->fc_flag & FC_DISC_TMO) { |
1326 | spin_lock_irq(phba->host->host_lock); |
1327 | phba->fc_flag &= ~FC_DISC_TMO; |
1328 | spin_unlock_irq(phba->host->host_lock); |
1329 | del_timer_sync(&phba->fc_disctmo); |
1330 | phba->work_hba_events &= ~WORKER_DISC_TMO; |
1331 | } |
1332 | |
1333 | /* Cancel Discovery Timer state <hba_state> */ |
1334 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, |
1335 | "%d:0248 Cancel Discovery Timer state x%x " |
1336 | "Data: x%x x%x x%x\n", |
1337 | phba->brd_no, phba->hba_state, phba->fc_flag, |
1338 | phba->fc_plogi_cnt, phba->fc_adisc_cnt); |
1339 | |
1340 | return (0); |
1341 | } |
1342 | |
1343 | /* |
1344 | * Check specified ring for outstanding IOCB on the SLI queue |
1345 | * Return true if iocb matches the specified nport |
1346 | */ |
1347 | int |
1348 | lpfc_check_sli_ndlp(struct lpfc_hba * phba, |
1349 | struct lpfc_sli_ring * pring, |
1350 | struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp) |
1351 | { |
1352 | struct lpfc_sli *psli; |
1353 | IOCB_t *icmd; |
1354 | |
1355 | psli = &phba->sli; |
1356 | icmd = &iocb->iocb; |
1357 | if (pring->ringno == LPFC_ELS_RING) { |
1358 | switch (icmd->ulpCommand) { |
1359 | case CMD_GEN_REQUEST64_CR: |
1360 | if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) |
1361 | return (1); |
1362 | case CMD_ELS_REQUEST64_CR: |
1363 | case CMD_XMIT_ELS_RSP64_CX: |
1364 | if (iocb->context1 == (uint8_t *) ndlp) |
1365 | return (1); |
1366 | } |
1367 | } else if (pring->ringno == psli->ip_ring) { |
1368 | |
1369 | } else if (pring->ringno == psli->fcp_ring) { |
1370 | /* Skip match check if waiting to relogin to FCP target */ |
1371 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
1372 | (ndlp->nlp_flag & NLP_DELAY_TMO)) { |
1373 | return (0); |
1374 | } |
1375 | if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { |
1376 | return (1); |
1377 | } |
1378 | } else if (pring->ringno == psli->next_ring) { |
1379 | |
1380 | } |
1381 | return (0); |
1382 | } |
1383 | |
1384 | /* |
1385 | * Free resources / clean up outstanding I/Os |
1386 | * associated with nlp_rpi in the LPFC_NODELIST entry. |
1387 | */ |
1388 | static int |
1389 | lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) |
1390 | { |
1391 | struct lpfc_sli *psli; |
1392 | struct lpfc_sli_ring *pring; |
1393 | struct lpfc_iocbq *iocb, *next_iocb; |
1394 | IOCB_t *icmd; |
1395 | uint32_t rpi, i; |
1396 | |
1397 | /* |
1398 | * Everything that matches on txcmplq will be returned |
1399 | * by firmware with a no rpi error. |
1400 | */ |
1401 | psli = &phba->sli; |
1402 | rpi = ndlp->nlp_rpi; |
1403 | if (rpi) { |
1404 | /* Now process each ring */ |
1405 | for (i = 0; i < psli->num_rings; i++) { |
1406 | pring = &psli->ring[i]; |
1407 | |
1408 | spin_lock_irq(phba->host->host_lock); |
1409 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, |
1410 | list) { |
1411 | /* |
1412 | * Check to see if iocb matches the nport we are |
1413 | * looking for |
1414 | */ |
1415 | if ((lpfc_check_sli_ndlp |
1416 | (phba, pring, iocb, ndlp))) { |
1417 | /* It matches, so deque and call compl |
1418 | with an error */ |
1419 | list_del(&iocb->list); |
1420 | pring->txq_cnt--; |
1421 | if (iocb->iocb_cmpl) { |
1422 | icmd = &iocb->iocb; |
1423 | icmd->ulpStatus = |
1424 | IOSTAT_LOCAL_REJECT; |
1425 | icmd->un.ulpWord[4] = |
1426 | IOERR_SLI_ABORTED; |
1427 | spin_unlock_irq(phba->host-> |
1428 | host_lock); |
1429 | (iocb->iocb_cmpl) (phba, |
1430 | iocb, iocb); |
1431 | spin_lock_irq(phba->host-> |
1432 | host_lock); |
1433 | } else { |
1434 | list_add_tail(&iocb->list, |
1435 | &phba->lpfc_iocb_list); |
1436 | } |
1437 | } |
1438 | } |
1439 | spin_unlock_irq(phba->host->host_lock); |
1440 | |
1441 | } |
1442 | } |
1443 | return (0); |
1444 | } |
1445 | |
1446 | /* |
1447 | * Free rpi associated with LPFC_NODELIST entry. |
1448 | * This routine is called from lpfc_freenode(), when we are removing |
1449 | * a LPFC_NODELIST entry. It is also called if the driver initiates a |
1450 | * LOGO that completes successfully, and we are waiting to PLOGI back |
1451 | * to the remote NPort. In addition, it is called after we receive |
1452 | * and unsolicated ELS cmd, send back a rsp, the rsp completes and |
1453 | * we are waiting to PLOGI back to the remote NPort. |
1454 | */ |
1455 | int |
1456 | lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) |
1457 | { |
1458 | LPFC_MBOXQ_t *mbox; |
1459 | int rc; |
1460 | |
1461 | if (ndlp->nlp_rpi) { |
1462 | if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { |
1463 | lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox); |
1464 | mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl; |
1465 | rc = lpfc_sli_issue_mbox |
1466 | (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)); |
1467 | if (rc == MBX_NOT_FINISHED) |
1468 | mempool_free( mbox, phba->mbox_mem_pool); |
1469 | } |
1470 | lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi); |
1471 | lpfc_no_rpi(phba, ndlp); |
1472 | ndlp->nlp_rpi = 0; |
1473 | return 1; |
1474 | } |
1475 | return 0; |
1476 | } |
1477 | |
1478 | /* |
1479 | * Free resources associated with LPFC_NODELIST entry |
1480 | * so it can be freed. |
1481 | */ |
1482 | static int |
1483 | lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) |
1484 | { |
1485 | LPFC_MBOXQ_t *mb; |
1486 | LPFC_MBOXQ_t *nextmb; |
1487 | struct lpfc_dmabuf *mp; |
1488 | struct fc_rport *rport; |
1489 | |
1490 | /* Cleanup node for NPort <nlp_DID> */ |
1491 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, |
1492 | "%d:0900 Cleanup node for NPort x%x " |
1493 | "Data: x%x x%x x%x\n", |
1494 | phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag, |
1495 | ndlp->nlp_state, ndlp->nlp_rpi); |
1496 | |
1497 | lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ); |
1498 | |
1499 | /* |
1500 | * if unloading the driver - just leave the remote port in place. |
1501 | * The driver unload will force the attached devices to detach |
1502 | * and flush cache's w/o generating flush errors. |
1503 | */ |
1504 | if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) { |
1505 | rport = ndlp->rport; |
1506 | ndlp->rport = NULL; |
1507 | fc_remote_port_unblock(rport); |
1508 | fc_remote_port_delete(rport); |
1509 | ndlp->nlp_sid = NLP_NO_SID; |
1510 | } |
1511 | |
1512 | /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ |
1513 | if ((mb = phba->sli.mbox_active)) { |
1514 | if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) && |
1515 | (ndlp == (struct lpfc_nodelist *) mb->context2)) { |
1516 | mb->context2 = NULL; |
1517 | mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
1518 | } |
1519 | } |
1520 | list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { |
1521 | if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) && |
1522 | (ndlp == (struct lpfc_nodelist *) mb->context2)) { |
1523 | mp = (struct lpfc_dmabuf *) (mb->context1); |
1524 | if (mp) { |
1525 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
1526 | kfree(mp); |
1527 | } |
1528 | list_del(&mb->list); |
1529 | mempool_free(mb, phba->mbox_mem_pool); |
1530 | } |
1531 | } |
1532 | |
1533 | lpfc_els_abort(phba,ndlp,0); |
1534 | spin_lock_irq(phba->host->host_lock); |
1535 | ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO); |
1536 | spin_unlock_irq(phba->host->host_lock); |
1537 | del_timer_sync(&ndlp->nlp_tmofunc); |
1538 | |
1539 | del_timer_sync(&ndlp->nlp_delayfunc); |
1540 | |
1541 | if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp)) |
1542 | list_del_init(&ndlp->nodev_timeout_evt.evt_listp); |
1543 | if (!list_empty(&ndlp->els_retry_evt.evt_listp)) |
1544 | list_del_init(&ndlp->els_retry_evt.evt_listp); |
1545 | |
1546 | lpfc_unreg_rpi(phba, ndlp); |
1547 | |
1548 | return (0); |
1549 | } |
1550 | |
1551 | /* |
1552 | * Check to see if we can free the nlp back to the freelist. |
1553 | * If we are in the middle of using the nlp in the discovery state |
1554 | * machine, defer the free till we reach the end of the state machine. |
1555 | */ |
1556 | int |
1557 | lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) |
1558 | { |
1559 | if (ndlp->nlp_flag & NLP_NODEV_TMO) { |
1560 | spin_lock_irq(phba->host->host_lock); |
1561 | ndlp->nlp_flag &= ~NLP_NODEV_TMO; |
1562 | spin_unlock_irq(phba->host->host_lock); |
1563 | del_timer_sync(&ndlp->nlp_tmofunc); |
1564 | if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp)) |
1565 | list_del_init(&ndlp->nodev_timeout_evt.evt_listp); |
1566 | |
1567 | } |
1568 | |
1569 | |
1570 | if (ndlp->nlp_flag & NLP_DELAY_TMO) { |
1571 | spin_lock_irq(phba->host->host_lock); |
1572 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; |
1573 | spin_unlock_irq(phba->host->host_lock); |
1574 | del_timer_sync(&ndlp->nlp_delayfunc); |
1575 | if (!list_empty(&ndlp->els_retry_evt.evt_listp)) |
1576 | list_del_init(&ndlp->els_retry_evt.evt_listp); |
1577 | } |
1578 | |
1579 | if (ndlp->nlp_disc_refcnt) { |
1580 | spin_lock_irq(phba->host->host_lock); |
1581 | ndlp->nlp_flag |= NLP_DELAY_REMOVE; |
1582 | spin_unlock_irq(phba->host->host_lock); |
1583 | } |
1584 | else { |
1585 | lpfc_freenode(phba, ndlp); |
1586 | mempool_free( ndlp, phba->nlp_mem_pool); |
1587 | } |
1588 | return(0); |
1589 | } |
1590 | |
1591 | static int |
1592 | lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did) |
1593 | { |
1594 | D_ID mydid; |
1595 | D_ID ndlpdid; |
1596 | D_ID matchdid; |
1597 | |
1598 | if (did == Bcast_DID) |
1599 | return (0); |
1600 | |
1601 | if (ndlp->nlp_DID == 0) { |
1602 | return (0); |
1603 | } |
1604 | |
1605 | /* First check for Direct match */ |
1606 | if (ndlp->nlp_DID == did) |
1607 | return (1); |
1608 | |
1609 | /* Next check for area/domain identically equals 0 match */ |
1610 | mydid.un.word = phba->fc_myDID; |
1611 | if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { |
1612 | return (0); |
1613 | } |
1614 | |
1615 | matchdid.un.word = did; |
1616 | ndlpdid.un.word = ndlp->nlp_DID; |
1617 | if (matchdid.un.b.id == ndlpdid.un.b.id) { |
1618 | if ((mydid.un.b.domain == matchdid.un.b.domain) && |
1619 | (mydid.un.b.area == matchdid.un.b.area)) { |
1620 | if ((ndlpdid.un.b.domain == 0) && |
1621 | (ndlpdid.un.b.area == 0)) { |
1622 | if (ndlpdid.un.b.id) |
1623 | return (1); |
1624 | } |
1625 | return (0); |
1626 | } |
1627 | |
1628 | matchdid.un.word = ndlp->nlp_DID; |
1629 | if ((mydid.un.b.domain == ndlpdid.un.b.domain) && |
1630 | (mydid.un.b.area == ndlpdid.un.b.area)) { |
1631 | if ((matchdid.un.b.domain == 0) && |
1632 | (matchdid.un.b.area == 0)) { |
1633 | if (matchdid.un.b.id) |
1634 | return (1); |
1635 | } |
1636 | } |
1637 | } |
1638 | return (0); |
1639 | } |
1640 | |
1641 | /* Search for a nodelist entry on a specific list */ |
1642 | struct lpfc_nodelist * |
1643 | lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did) |
1644 | { |
1645 | struct lpfc_nodelist *ndlp, *next_ndlp; |
1646 | uint32_t data1; |
1647 | |
1648 | if (order & NLP_SEARCH_UNMAPPED) { |
1649 | list_for_each_entry_safe(ndlp, next_ndlp, |
1650 | &phba->fc_nlpunmap_list, nlp_listp) { |
1651 | if (lpfc_matchdid(phba, ndlp, did)) { |
1652 | data1 = (((uint32_t) ndlp->nlp_state << 24) | |
1653 | ((uint32_t) ndlp->nlp_xri << 16) | |
1654 | ((uint32_t) ndlp->nlp_type << 8) | |
1655 | ((uint32_t) ndlp->nlp_rpi & 0xff)); |
1656 | /* FIND node DID unmapped */ |
1657 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, |
1658 | "%d:0929 FIND node DID unmapped" |
1659 | " Data: x%p x%x x%x x%x\n", |
1660 | phba->brd_no, |
1661 | ndlp, ndlp->nlp_DID, |
1662 | ndlp->nlp_flag, data1); |
1663 | return (ndlp); |
1664 | } |
1665 | } |
1666 | } |
1667 | |
1668 | if (order & NLP_SEARCH_MAPPED) { |
1669 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list, |
1670 | nlp_listp) { |
1671 | if (lpfc_matchdid(phba, ndlp, did)) { |
1672 | |
1673 | data1 = (((uint32_t) ndlp->nlp_state << 24) | |
1674 | ((uint32_t) ndlp->nlp_xri << 16) | |
1675 | ((uint32_t) ndlp->nlp_type << 8) | |
1676 | ((uint32_t) ndlp->nlp_rpi & 0xff)); |
1677 | /* FIND node DID mapped */ |
1678 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, |
1679 | "%d:0930 FIND node DID mapped " |
1680 | "Data: x%p x%x x%x x%x\n", |
1681 | phba->brd_no, |
1682 | ndlp, ndlp->nlp_DID, |
1683 | ndlp->nlp_flag, data1); |
1684 | return (ndlp); |
1685 | } |
1686 | } |
1687 | } |
1688 | |
1689 | if (order & NLP_SEARCH_PLOGI) { |
1690 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list, |
1691 | nlp_listp) { |
1692 | if (lpfc_matchdid(phba, ndlp, did)) { |
1693 | |
1694 | data1 = (((uint32_t) ndlp->nlp_state << 24) | |
1695 | ((uint32_t) ndlp->nlp_xri << 16) | |
1696 | ((uint32_t) ndlp->nlp_type << 8) | |
1697 | ((uint32_t) ndlp->nlp_rpi & 0xff)); |
1698 | /* LOG change to PLOGI */ |
1699 | /* FIND node DID plogi */ |
1700 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, |
1701 | "%d:0908 FIND node DID plogi " |
1702 | "Data: x%p x%x x%x x%x\n", |
1703 | phba->brd_no, |
1704 | ndlp, ndlp->nlp_DID, |
1705 | ndlp->nlp_flag, data1); |
1706 | return (ndlp); |
1707 | } |
1708 | } |
1709 | } |
1710 | |
1711 | if (order & NLP_SEARCH_ADISC) { |
1712 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list, |
1713 | nlp_listp) { |
1714 | if (lpfc_matchdid(phba, ndlp, did)) { |
1715 | |
1716 | data1 = (((uint32_t) ndlp->nlp_state << 24) | |
1717 | ((uint32_t) ndlp->nlp_xri << 16) | |
1718 | ((uint32_t) ndlp->nlp_type << 8) | |
1719 | ((uint32_t) ndlp->nlp_rpi & 0xff)); |
1720 | /* LOG change to ADISC */ |
1721 | /* FIND node DID adisc */ |
1722 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, |
1723 | "%d:0931 FIND node DID adisc " |
1724 | "Data: x%p x%x x%x x%x\n", |
1725 | phba->brd_no, |
1726 | ndlp, ndlp->nlp_DID, |
1727 | ndlp->nlp_flag, data1); |
1728 | return (ndlp); |
1729 | } |
1730 | } |
1731 | } |
1732 | |
1733 | if (order & NLP_SEARCH_REGLOGIN) { |
1734 | list_for_each_entry_safe(ndlp, next_ndlp, |
1735 | &phba->fc_reglogin_list, nlp_listp) { |
1736 | if (lpfc_matchdid(phba, ndlp, did)) { |
1737 | |
1738 | data1 = (((uint32_t) ndlp->nlp_state << 24) | |
1739 | ((uint32_t) ndlp->nlp_xri << 16) | |
1740 | ((uint32_t) ndlp->nlp_type << 8) | |
1741 | ((uint32_t) ndlp->nlp_rpi & 0xff)); |
1742 | /* LOG change to REGLOGIN */ |
1743 | /* FIND node DID reglogin */ |
1744 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, |
1745 | "%d:0931 FIND node DID reglogin" |
1746 | " Data: x%p x%x x%x x%x\n", |
1747 | phba->brd_no, |
1748 | ndlp, ndlp->nlp_DID, |
1749 | ndlp->nlp_flag, data1); |
1750 | return (ndlp); |
1751 | } |
1752 | } |
1753 | } |
1754 | |
1755 | if (order & NLP_SEARCH_PRLI) { |
1756 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list, |
1757 | nlp_listp) { |
1758 | if (lpfc_matchdid(phba, ndlp, did)) { |
1759 | |
1760 | data1 = (((uint32_t) ndlp->nlp_state << 24) | |
1761 | ((uint32_t) ndlp->nlp_xri << 16) | |
1762 | ((uint32_t) ndlp->nlp_type << 8) | |
1763 | ((uint32_t) ndlp->nlp_rpi & 0xff)); |
1764 | /* LOG change to PRLI */ |
1765 | /* FIND node DID prli */ |
1766 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, |
1767 | "%d:0931 FIND node DID prli " |
1768 | "Data: x%p x%x x%x x%x\n", |
1769 | phba->brd_no, |
1770 | ndlp, ndlp->nlp_DID, |
1771 | ndlp->nlp_flag, data1); |
1772 | return (ndlp); |
1773 | } |
1774 | } |
1775 | } |
1776 | |
1777 | if (order & NLP_SEARCH_NPR) { |
1778 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list, |
1779 | nlp_listp) { |
1780 | if (lpfc_matchdid(phba, ndlp, did)) { |
1781 | |
1782 | data1 = (((uint32_t) ndlp->nlp_state << 24) | |
1783 | ((uint32_t) ndlp->nlp_xri << 16) | |
1784 | ((uint32_t) ndlp->nlp_type << 8) | |
1785 | ((uint32_t) ndlp->nlp_rpi & 0xff)); |
1786 | /* LOG change to NPR */ |
1787 | /* FIND node DID npr */ |
1788 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, |
1789 | "%d:0931 FIND node DID npr " |
1790 | "Data: x%p x%x x%x x%x\n", |
1791 | phba->brd_no, |
1792 | ndlp, ndlp->nlp_DID, |
1793 | ndlp->nlp_flag, data1); |
1794 | return (ndlp); |
1795 | } |
1796 | } |
1797 | } |
1798 | |
1799 | if (order & NLP_SEARCH_UNUSED) { |
1800 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list, |
1801 | nlp_listp) { |
1802 | if (lpfc_matchdid(phba, ndlp, did)) { |
1803 | |
1804 | data1 = (((uint32_t) ndlp->nlp_state << 24) | |
1805 | ((uint32_t) ndlp->nlp_xri << 16) | |
1806 | ((uint32_t) ndlp->nlp_type << 8) | |
1807 | ((uint32_t) ndlp->nlp_rpi & 0xff)); |
1808 | /* LOG change to UNUSED */ |
1809 | /* FIND node DID unused */ |
1810 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, |
1811 | "%d:0931 FIND node DID unused " |
1812 | "Data: x%p x%x x%x x%x\n", |
1813 | phba->brd_no, |
1814 | ndlp, ndlp->nlp_DID, |
1815 | ndlp->nlp_flag, data1); |
1816 | return (ndlp); |
1817 | } |
1818 | } |
1819 | } |
1820 | |
1821 | /* FIND node did <did> NOT FOUND */ |
1822 | lpfc_printf_log(phba, |
1823 | KERN_INFO, |
1824 | LOG_NODE, |
1825 | "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n", |
1826 | phba->brd_no, did, order); |
1827 | |
1828 | /* no match found */ |
1829 | return NULL; |
1830 | } |
1831 | |
1832 | struct lpfc_nodelist * |
1833 | lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did) |
1834 | { |
1835 | struct lpfc_nodelist *ndlp; |
1836 | uint32_t flg; |
1837 | |
1838 | if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did)) == 0) { |
1839 | if ((phba->hba_state == LPFC_HBA_READY) && |
1840 | ((lpfc_rscn_payload_check(phba, did) == 0))) |
1841 | return NULL; |
1842 | ndlp = (struct lpfc_nodelist *) |
1843 | mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
1844 | if (!ndlp) |
1845 | return NULL; |
1846 | lpfc_nlp_init(phba, ndlp, did); |
1847 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
1848 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
1849 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
1850 | return ndlp; |
1851 | } |
1852 | if ((phba->hba_state == LPFC_HBA_READY) && |
1853 | (phba->fc_flag & FC_RSCN_MODE)) { |
1854 | if (lpfc_rscn_payload_check(phba, did)) { |
1855 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
1856 | } |
1857 | else { |
1858 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
1859 | ndlp = NULL; |
1860 | } |
1861 | } |
1862 | else { |
1863 | flg = ndlp->nlp_flag & NLP_LIST_MASK; |
1864 | if ((flg == NLP_ADISC_LIST) || |
1865 | (flg == NLP_PLOGI_LIST)) { |
1866 | return NULL; |
1867 | } |
1868 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
1869 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
1870 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
1871 | } |
1872 | return ndlp; |
1873 | } |
1874 | |
1875 | /* Build a list of nodes to discover based on the loopmap */ |
1876 | void |
1877 | lpfc_disc_list_loopmap(struct lpfc_hba * phba) |
1878 | { |
1879 | int j; |
1880 | uint32_t alpa, index; |
1881 | |
1882 | if (phba->hba_state <= LPFC_LINK_DOWN) { |
1883 | return; |
1884 | } |
1885 | if (phba->fc_topology != TOPOLOGY_LOOP) { |
1886 | return; |
1887 | } |
1888 | |
1889 | /* Check for loop map present or not */ |
1890 | if (phba->alpa_map[0]) { |
1891 | for (j = 1; j <= phba->alpa_map[0]; j++) { |
1892 | alpa = phba->alpa_map[j]; |
1893 | |
1894 | if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) { |
1895 | continue; |
1896 | } |
1897 | lpfc_setup_disc_node(phba, alpa); |
1898 | } |
1899 | } else { |
1900 | /* No alpamap, so try all alpa's */ |
1901 | for (j = 0; j < FC_MAXLOOP; j++) { |
1902 | /* If cfg_scan_down is set, start from highest |
1903 | * ALPA (0xef) to lowest (0x1). |
1904 | */ |
1905 | if (phba->cfg_scan_down) |
1906 | index = j; |
1907 | else |
1908 | index = FC_MAXLOOP - j - 1; |
1909 | alpa = lpfcAlpaArray[index]; |
1910 | if ((phba->fc_myDID & 0xff) == alpa) { |
1911 | continue; |
1912 | } |
1913 | |
1914 | lpfc_setup_disc_node(phba, alpa); |
1915 | } |
1916 | } |
1917 | return; |
1918 | } |
1919 | |
1920 | /* Start Link up / RSCN discovery on NPR list */ |
1921 | void |
1922 | lpfc_disc_start(struct lpfc_hba * phba) |
1923 | { |
1924 | struct lpfc_sli *psli; |
1925 | LPFC_MBOXQ_t *mbox; |
1926 | struct lpfc_nodelist *ndlp, *next_ndlp; |
1927 | uint32_t did_changed, num_sent; |
1928 | uint32_t clear_la_pending; |
1929 | int rc; |
1930 | |
1931 | psli = &phba->sli; |
1932 | |
1933 | if (phba->hba_state <= LPFC_LINK_DOWN) { |
1934 | return; |
1935 | } |
1936 | if (phba->hba_state == LPFC_CLEAR_LA) |
1937 | clear_la_pending = 1; |
1938 | else |
1939 | clear_la_pending = 0; |
1940 | |
1941 | if (phba->hba_state < LPFC_HBA_READY) { |
1942 | phba->hba_state = LPFC_DISC_AUTH; |
1943 | } |
1944 | lpfc_set_disctmo(phba); |
1945 | |
1946 | if (phba->fc_prevDID == phba->fc_myDID) { |
1947 | did_changed = 0; |
1948 | } else { |
1949 | did_changed = 1; |
1950 | } |
1951 | phba->fc_prevDID = phba->fc_myDID; |
1952 | phba->num_disc_nodes = 0; |
1953 | |
1954 | /* Start Discovery state <hba_state> */ |
1955 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, |
1956 | "%d:0202 Start Discovery hba state x%x " |
1957 | "Data: x%x x%x x%x\n", |
1958 | phba->brd_no, phba->hba_state, phba->fc_flag, |
1959 | phba->fc_plogi_cnt, phba->fc_adisc_cnt); |
1960 | |
1961 | /* If our did changed, we MUST do PLOGI */ |
1962 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list, |
1963 | nlp_listp) { |
1964 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { |
1965 | if (did_changed) { |
1966 | spin_lock_irq(phba->host->host_lock); |
1967 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
1968 | spin_unlock_irq(phba->host->host_lock); |
1969 | } |
1970 | } |
1971 | } |
1972 | |
1973 | /* First do ADISCs - if any */ |
1974 | num_sent = lpfc_els_disc_adisc(phba); |
1975 | |
1976 | if (num_sent) |
1977 | return; |
1978 | |
1979 | if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) { |
1980 | /* If we get here, there is nothing to ADISC */ |
1981 | if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { |
1982 | phba->hba_state = LPFC_CLEAR_LA; |
1983 | lpfc_clear_la(phba, mbox); |
1984 | mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; |
1985 | rc = lpfc_sli_issue_mbox(phba, mbox, |
1986 | (MBX_NOWAIT | MBX_STOP_IOCB)); |
1987 | if (rc == MBX_NOT_FINISHED) { |
1988 | mempool_free( mbox, phba->mbox_mem_pool); |
1989 | lpfc_disc_flush_list(phba); |
1990 | psli->ring[(psli->ip_ring)].flag &= |
1991 | ~LPFC_STOP_IOCB_EVENT; |
1992 | psli->ring[(psli->fcp_ring)].flag &= |
1993 | ~LPFC_STOP_IOCB_EVENT; |
1994 | psli->ring[(psli->next_ring)].flag &= |
1995 | ~LPFC_STOP_IOCB_EVENT; |
1996 | phba->hba_state = LPFC_HBA_READY; |
1997 | } |
1998 | } |
1999 | } else { |
2000 | /* Next do PLOGIs - if any */ |
2001 | num_sent = lpfc_els_disc_plogi(phba); |
2002 | |
2003 | if (num_sent) |
2004 | return; |
2005 | |
2006 | if (phba->fc_flag & FC_RSCN_MODE) { |
2007 | /* Check to see if more RSCNs came in while we |
2008 | * were processing this one. |
2009 | */ |
2010 | if ((phba->fc_rscn_id_cnt == 0) && |
2011 | (!(phba->fc_flag & FC_RSCN_DISCOVERY))) { |
2012 | spin_lock_irq(phba->host->host_lock); |
2013 | phba->fc_flag &= ~FC_RSCN_MODE; |
2014 | spin_unlock_irq(phba->host->host_lock); |
2015 | } |
2016 | else |
2017 | lpfc_els_handle_rscn(phba); |
2018 | } |
2019 | } |
2020 | return; |
2021 | } |
2022 | |
2023 | /* |
2024 | * Ignore completion for all IOCBs on tx and txcmpl queue for ELS |
2025 | * ring the match the sppecified nodelist. |
2026 | */ |
2027 | static void |
2028 | lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) |
2029 | { |
2030 | struct lpfc_sli *psli; |
2031 | IOCB_t *icmd; |
2032 | struct lpfc_iocbq *iocb, *next_iocb; |
2033 | struct lpfc_sli_ring *pring; |
2034 | struct lpfc_dmabuf *mp; |
2035 | |
2036 | psli = &phba->sli; |
2037 | pring = &psli->ring[LPFC_ELS_RING]; |
2038 | |
2039 | /* Error matching iocb on txq or txcmplq |
2040 | * First check the txq. |
2041 | */ |
2042 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
2043 | if (iocb->context1 != ndlp) { |
2044 | continue; |
2045 | } |
2046 | icmd = &iocb->iocb; |
2047 | if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || |
2048 | (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { |
2049 | |
2050 | list_del(&iocb->list); |
2051 | pring->txq_cnt--; |
2052 | lpfc_els_free_iocb(phba, iocb); |
2053 | } |
2054 | } |
2055 | |
2056 | /* Next check the txcmplq */ |
2057 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
2058 | if (iocb->context1 != ndlp) { |
2059 | continue; |
2060 | } |
2061 | icmd = &iocb->iocb; |
2062 | if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || |
2063 | (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { |
2064 | |
2065 | iocb->iocb_cmpl = NULL; |
2066 | /* context2 = cmd, context2->next = rsp, context3 = |
2067 | bpl */ |
2068 | if (iocb->context2) { |
2069 | /* Free the response IOCB before handling the |
2070 | command. */ |
2071 | |
2072 | mp = (struct lpfc_dmabuf *) (iocb->context2); |
2073 | mp = list_get_first(&mp->list, |
2074 | struct lpfc_dmabuf, |
2075 | list); |
2076 | if (mp) { |
2077 | /* Delay before releasing rsp buffer to |
2078 | * give UNREG mbox a chance to take |
2079 | * effect. |
2080 | */ |
2081 | list_add(&mp->list, |
2082 | &phba->freebufList); |
2083 | } |
2084 | lpfc_mbuf_free(phba, |
2085 | ((struct lpfc_dmabuf *) |
2086 | iocb->context2)->virt, |
2087 | ((struct lpfc_dmabuf *) |
2088 | iocb->context2)->phys); |
2089 | kfree(iocb->context2); |
2090 | } |
2091 | |
2092 | if (iocb->context3) { |
2093 | lpfc_mbuf_free(phba, |
2094 | ((struct lpfc_dmabuf *) |
2095 | iocb->context3)->virt, |
2096 | ((struct lpfc_dmabuf *) |
2097 | iocb->context3)->phys); |
2098 | kfree(iocb->context3); |
2099 | } |
2100 | } |
2101 | } |
2102 | |
2103 | return; |
2104 | } |
2105 | |
2106 | void |
2107 | lpfc_disc_flush_list(struct lpfc_hba * phba) |
2108 | { |
2109 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2110 | |
2111 | if (phba->fc_plogi_cnt) { |
2112 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list, |
2113 | nlp_listp) { |
2114 | lpfc_free_tx(phba, ndlp); |
2115 | lpfc_nlp_remove(phba, ndlp); |
2116 | } |
2117 | } |
2118 | if (phba->fc_adisc_cnt) { |
2119 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list, |
2120 | nlp_listp) { |
2121 | lpfc_free_tx(phba, ndlp); |
2122 | lpfc_nlp_remove(phba, ndlp); |
2123 | } |
2124 | } |
2125 | return; |
2126 | } |
2127 | |
2128 | /*****************************************************************************/ |
2129 | /* |
2130 | * NAME: lpfc_disc_timeout |
2131 | * |
2132 | * FUNCTION: Fibre Channel driver discovery timeout routine. |
2133 | * |
2134 | * EXECUTION ENVIRONMENT: interrupt only |
2135 | * |
2136 | * CALLED FROM: |
2137 | * Timer function |
2138 | * |
2139 | * RETURNS: |
2140 | * none |
2141 | */ |
2142 | /*****************************************************************************/ |
2143 | void |
2144 | lpfc_disc_timeout(unsigned long ptr) |
2145 | { |
2146 | struct lpfc_hba *phba = (struct lpfc_hba *)ptr; |
2147 | unsigned long flags = 0; |
2148 | |
2149 | if (unlikely(!phba)) |
2150 | return; |
2151 | |
2152 | spin_lock_irqsave(phba->host->host_lock, flags); |
2153 | if (!(phba->work_hba_events & WORKER_DISC_TMO)) { |
2154 | phba->work_hba_events |= WORKER_DISC_TMO; |
2155 | if (phba->work_wait) |
2156 | wake_up(phba->work_wait); |
2157 | } |
2158 | spin_unlock_irqrestore(phba->host->host_lock, flags); |
2159 | return; |
2160 | } |
2161 | |
2162 | static void |
2163 | lpfc_disc_timeout_handler(struct lpfc_hba *phba) |
2164 | { |
2165 | struct lpfc_sli *psli; |
2166 | struct lpfc_nodelist *ndlp; |
2167 | LPFC_MBOXQ_t *clearlambox, *initlinkmbox; |
2168 | int rc, clrlaerr = 0; |
2169 | |
2170 | if (unlikely(!phba)) |
2171 | return; |
2172 | |
2173 | if (!(phba->fc_flag & FC_DISC_TMO)) |
2174 | return; |
2175 | |
2176 | psli = &phba->sli; |
2177 | |
2178 | spin_lock_irq(phba->host->host_lock); |
2179 | phba->fc_flag &= ~FC_DISC_TMO; |
2180 | spin_unlock_irq(phba->host->host_lock); |
2181 | |
2182 | switch (phba->hba_state) { |
2183 | |
2184 | case LPFC_LOCAL_CFG_LINK: |
2185 | /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */ |
2186 | /* FAN timeout */ |
2187 | lpfc_printf_log(phba, |
2188 | KERN_WARNING, |
2189 | LOG_DISCOVERY, |
2190 | "%d:0221 FAN timeout\n", |
2191 | phba->brd_no); |
2192 | |
2193 | /* Forget about FAN, Start discovery by sending a FLOGI |
2194 | * hba_state is identically LPFC_FLOGI while waiting for FLOGI |
2195 | * cmpl |
2196 | */ |
2197 | phba->hba_state = LPFC_FLOGI; |
2198 | lpfc_set_disctmo(phba); |
2199 | lpfc_initial_flogi(phba); |
2200 | break; |
2201 | |
2202 | case LPFC_FLOGI: |
2203 | /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ |
2204 | /* Initial FLOGI timeout */ |
2205 | lpfc_printf_log(phba, |
2206 | KERN_ERR, |
2207 | LOG_DISCOVERY, |
2208 | "%d:0222 Initial FLOGI timeout\n", |
2209 | phba->brd_no); |
2210 | |
2211 | /* Assume no Fabric and go on with discovery. |
2212 | * Check for outstanding ELS FLOGI to abort. |
2213 | */ |
2214 | |
2215 | /* FLOGI failed, so just use loop map to make discovery list */ |
2216 | lpfc_disc_list_loopmap(phba); |
2217 | |
2218 | /* Start discovery */ |
2219 | lpfc_disc_start(phba); |
2220 | break; |
2221 | |
2222 | case LPFC_FABRIC_CFG_LINK: |
2223 | /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for |
2224 | NameServer login */ |
2225 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, |
2226 | "%d:0223 Timeout while waiting for NameServer " |
2227 | "login\n", phba->brd_no); |
2228 | |
2229 | /* Next look for NameServer ndlp */ |
2230 | ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID); |
2231 | if (ndlp) |
2232 | lpfc_nlp_remove(phba, ndlp); |
2233 | /* Start discovery */ |
2234 | lpfc_disc_start(phba); |
2235 | break; |
2236 | |
2237 | case LPFC_NS_QRY: |
2238 | /* Check for wait for NameServer Rsp timeout */ |
2239 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, |
2240 | "%d:0224 NameServer Query timeout " |
2241 | "Data: x%x x%x\n", |
2242 | phba->brd_no, |
2243 | phba->fc_ns_retry, LPFC_MAX_NS_RETRY); |
2244 | |
2245 | ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED, |
2246 | NameServer_DID); |
2247 | if (ndlp) { |
2248 | if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) { |
2249 | /* Try it one more time */ |
2250 | rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT); |
2251 | if (rc == 0) |
2252 | break; |
2253 | } |
2254 | phba->fc_ns_retry = 0; |
2255 | } |
2256 | |
2257 | /* Nothing to authenticate, so CLEAR_LA right now */ |
2258 | clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
2259 | if (!clearlambox) { |
2260 | clrlaerr = 1; |
2261 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, |
2262 | "%d:0226 Device Discovery " |
2263 | "completion error\n", |
2264 | phba->brd_no); |
2265 | phba->hba_state = LPFC_HBA_ERROR; |
2266 | break; |
2267 | } |
2268 | |
2269 | phba->hba_state = LPFC_CLEAR_LA; |
2270 | lpfc_clear_la(phba, clearlambox); |
2271 | clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; |
2272 | rc = lpfc_sli_issue_mbox(phba, clearlambox, |
2273 | (MBX_NOWAIT | MBX_STOP_IOCB)); |
2274 | if (rc == MBX_NOT_FINISHED) { |
2275 | mempool_free(clearlambox, phba->mbox_mem_pool); |
2276 | clrlaerr = 1; |
2277 | break; |
2278 | } |
2279 | |
2280 | /* Setup and issue mailbox INITIALIZE LINK command */ |
2281 | initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
2282 | if (!initlinkmbox) { |
2283 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, |
2284 | "%d:0226 Device Discovery " |
2285 | "completion error\n", |
2286 | phba->brd_no); |
2287 | phba->hba_state = LPFC_HBA_ERROR; |
2288 | break; |
2289 | } |
2290 | |
2291 | lpfc_linkdown(phba); |
2292 | lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, |
2293 | phba->cfg_link_speed); |
2294 | initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0; |
2295 | rc = lpfc_sli_issue_mbox(phba, initlinkmbox, |
2296 | (MBX_NOWAIT | MBX_STOP_IOCB)); |
2297 | if (rc == MBX_NOT_FINISHED) |
2298 | mempool_free(initlinkmbox, phba->mbox_mem_pool); |
2299 | |
2300 | break; |
2301 | |
2302 | case LPFC_DISC_AUTH: |
2303 | /* Node Authentication timeout */ |
2304 | lpfc_printf_log(phba, |
2305 | KERN_ERR, |
2306 | LOG_DISCOVERY, |
2307 | "%d:0227 Node Authentication timeout\n", |
2308 | phba->brd_no); |
2309 | lpfc_disc_flush_list(phba); |
2310 | clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
2311 | if (!clearlambox) { |
2312 | clrlaerr = 1; |
2313 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, |
2314 | "%d:0226 Device Discovery " |
2315 | "completion error\n", |
2316 | phba->brd_no); |
2317 | phba->hba_state = LPFC_HBA_ERROR; |
2318 | break; |
2319 | } |
2320 | phba->hba_state = LPFC_CLEAR_LA; |
2321 | lpfc_clear_la(phba, clearlambox); |
2322 | clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; |
2323 | rc = lpfc_sli_issue_mbox(phba, clearlambox, |
2324 | (MBX_NOWAIT | MBX_STOP_IOCB)); |
2325 | if (rc == MBX_NOT_FINISHED) { |
2326 | mempool_free(clearlambox, phba->mbox_mem_pool); |
2327 | clrlaerr = 1; |
2328 | } |
2329 | break; |
2330 | |
2331 | case LPFC_CLEAR_LA: |
2332 | /* CLEAR LA timeout */ |
2333 | lpfc_printf_log(phba, |
2334 | KERN_ERR, |
2335 | LOG_DISCOVERY, |
2336 | "%d:0228 CLEAR LA timeout\n", |
2337 | phba->brd_no); |
2338 | clrlaerr = 1; |
2339 | break; |
2340 | |
2341 | case LPFC_HBA_READY: |
2342 | if (phba->fc_flag & FC_RSCN_MODE) { |
2343 | lpfc_printf_log(phba, |
2344 | KERN_ERR, |
2345 | LOG_DISCOVERY, |
2346 | "%d:0231 RSCN timeout Data: x%x x%x\n", |
2347 | phba->brd_no, |
2348 | phba->fc_ns_retry, LPFC_MAX_NS_RETRY); |
2349 | |
2350 | /* Cleanup any outstanding ELS commands */ |
2351 | lpfc_els_flush_cmd(phba); |
2352 | |
2353 | lpfc_els_flush_rscn(phba); |
2354 | lpfc_disc_flush_list(phba); |
2355 | } |
2356 | break; |
2357 | } |
2358 | |
2359 | if (clrlaerr) { |
2360 | lpfc_disc_flush_list(phba); |
2361 | psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; |
2362 | psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; |
2363 | psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; |
2364 | phba->hba_state = LPFC_HBA_READY; |
2365 | } |
2366 | |
2367 | return; |
2368 | } |
2369 | |
2370 | static void |
2371 | lpfc_nodev_timeout(unsigned long ptr) |
2372 | { |
2373 | struct lpfc_hba *phba; |
2374 | struct lpfc_nodelist *ndlp; |
2375 | unsigned long iflag; |
2376 | struct lpfc_work_evt *evtp; |
2377 | |
2378 | ndlp = (struct lpfc_nodelist *)ptr; |
2379 | phba = ndlp->nlp_phba; |
2380 | evtp = &ndlp->nodev_timeout_evt; |
2381 | spin_lock_irqsave(phba->host->host_lock, iflag); |
2382 | |
2383 | if (!list_empty(&evtp->evt_listp)) { |
2384 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
2385 | return; |
2386 | } |
2387 | evtp->evt_arg1 = ndlp; |
2388 | evtp->evt = LPFC_EVT_NODEV_TMO; |
2389 | list_add_tail(&evtp->evt_listp, &phba->work_list); |
2390 | if (phba->work_wait) |
2391 | wake_up(phba->work_wait); |
2392 | |
2393 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
2394 | return; |
2395 | } |
2396 | |
2397 | |
2398 | /* |
2399 | * This routine handles processing a NameServer REG_LOGIN mailbox |
2400 | * command upon completion. It is setup in the LPFC_MBOXQ |
2401 | * as the completion routine when the command is |
2402 | * handed off to the SLI layer. |
2403 | */ |
2404 | void |
2405 | lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
2406 | { |
2407 | struct lpfc_sli *psli; |
2408 | MAILBOX_t *mb; |
2409 | struct lpfc_dmabuf *mp; |
2410 | struct lpfc_nodelist *ndlp; |
2411 | |
2412 | psli = &phba->sli; |
2413 | mb = &pmb->mb; |
2414 | |
2415 | ndlp = (struct lpfc_nodelist *) pmb->context2; |
2416 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
2417 | |
2418 | pmb->context1 = NULL; |
2419 | |
2420 | if (ndlp->nlp_rpi != 0) |
2421 | lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi); |
2422 | ndlp->nlp_rpi = mb->un.varWords[0]; |
2423 | lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi); |
2424 | ndlp->nlp_type |= NLP_FABRIC; |
2425 | ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; |
2426 | lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); |
2427 | |
2428 | /* Start issuing Fabric-Device Management Interface (FDMI) |
2429 | * command to 0xfffffa (FDMI well known port) |
2430 | */ |
2431 | if (phba->cfg_fdmi_on == 1) { |
2432 | lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA); |
2433 | } else { |
2434 | /* |
2435 | * Delay issuing FDMI command if fdmi-on=2 |
2436 | * (supporting RPA/hostnmae) |
2437 | */ |
2438 | mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60); |
2439 | } |
2440 | |
2441 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
2442 | kfree(mp); |
2443 | mempool_free( pmb, phba->mbox_mem_pool); |
2444 | |
2445 | return; |
2446 | } |
2447 | |
2448 | /* |
2449 | * This routine looks up the ndlp hash |
2450 | * table for the given RPI. If rpi found |
2451 | * it return the node list pointer |
2452 | * else return 0. |
2453 | */ |
2454 | struct lpfc_nodelist * |
2455 | lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi) |
2456 | { |
2457 | struct lpfc_nodelist *ret; |
2458 | |
2459 | ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)]; |
2460 | while ((ret != 0) && (ret->nlp_rpi != rpi)) { |
2461 | ret = ret->nlp_rpi_hash_next; |
2462 | } |
2463 | return ret; |
2464 | } |
2465 | |
2466 | /* |
2467 | * This routine looks up the ndlp hash table for the |
2468 | * given RPI. If rpi found it return the node list |
2469 | * pointer else return 0 after deleting the entry |
2470 | * from hash table. |
2471 | */ |
2472 | struct lpfc_nodelist * |
2473 | lpfc_findnode_remove_rpi(struct lpfc_hba * phba, uint16_t rpi) |
2474 | { |
2475 | struct lpfc_nodelist *ret, *temp;; |
2476 | |
2477 | ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)]; |
2478 | if (ret == 0) |
2479 | return NULL; |
2480 | |
2481 | if (ret->nlp_rpi == rpi) { |
2482 | phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)] = |
2483 | ret->nlp_rpi_hash_next; |
2484 | ret->nlp_rpi_hash_next = NULL; |
2485 | return ret; |
2486 | } |
2487 | |
2488 | while ((ret->nlp_rpi_hash_next != 0) && |
2489 | (ret->nlp_rpi_hash_next->nlp_rpi != rpi)) { |
2490 | ret = ret->nlp_rpi_hash_next; |
2491 | } |
2492 | |
2493 | if (ret->nlp_rpi_hash_next != 0) { |
2494 | temp = ret->nlp_rpi_hash_next; |
2495 | ret->nlp_rpi_hash_next = temp->nlp_rpi_hash_next; |
2496 | temp->nlp_rpi_hash_next = NULL; |
2497 | return temp; |
2498 | } else { |
2499 | return NULL; |
2500 | } |
2501 | } |
2502 | |
2503 | /* |
2504 | * This routine adds the node list entry to the |
2505 | * ndlp hash table. |
2506 | */ |
2507 | void |
2508 | lpfc_addnode_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, |
2509 | uint16_t rpi) |
2510 | { |
2511 | |
2512 | uint32_t index; |
2513 | |
2514 | index = LPFC_RPI_HASH_FUNC(rpi); |
2515 | ndlp->nlp_rpi_hash_next = phba->fc_nlplookup[index]; |
2516 | phba->fc_nlplookup[index] = ndlp; |
2517 | return; |
2518 | } |
2519 | |
2520 | void |
2521 | lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, |
2522 | uint32_t did) |
2523 | { |
2524 | memset(ndlp, 0, sizeof (struct lpfc_nodelist)); |
2525 | INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp); |
2526 | INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); |
2527 | init_timer(&ndlp->nlp_tmofunc); |
2528 | ndlp->nlp_tmofunc.function = lpfc_nodev_timeout; |
2529 | ndlp->nlp_tmofunc.data = (unsigned long)ndlp; |
2530 | init_timer(&ndlp->nlp_delayfunc); |
2531 | ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; |
2532 | ndlp->nlp_delayfunc.data = (unsigned long)ndlp; |
2533 | ndlp->nlp_DID = did; |
2534 | ndlp->nlp_phba = phba; |
2535 | ndlp->nlp_sid = NLP_NO_SID; |
2536 | return; |
2537 | } |