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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 JSEC |
3 | * Fibre Channel Host Bus Adapters. * |
4 | * Copyright (C) 2004-2005 Emulex. All rights reserved. * | |
5 | * EMULEX and SLI are trademarks of Emulex. * | |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e JB |
8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e JB |
20 | *******************************************************************/ |
21 | ||
dea3101e JB |
22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/kthread.h> | |
25 | #include <linux/interrupt.h> | |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e JB |
28 | #include <scsi/scsi_device.h> |
29 | #include <scsi/scsi_host.h> | |
30 | #include <scsi/scsi_transport_fc.h> | |
31 | ||
32 | #include "lpfc_hw.h" | |
33 | #include "lpfc_disc.h" | |
34 | #include "lpfc_sli.h" | |
35 | #include "lpfc_scsi.h" | |
36 | #include "lpfc.h" | |
37 | #include "lpfc_logmsg.h" | |
38 | #include "lpfc_crtn.h" | |
39 | ||
40 | /* AlpaArray for assignment of scsid for scan-down and bind_method */ | |
41 | static uint8_t lpfcAlpaArray[] = { | |
42 | 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, | |
43 | 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, | |
44 | 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, | |
45 | 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, | |
46 | 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, | |
47 | 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, | |
48 | 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, | |
49 | 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, | |
50 | 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, | |
51 | 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, | |
52 | 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, | |
53 | 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, | |
54 | 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 | |
55 | }; | |
56 | ||
57 | static void lpfc_disc_timeout_handler(struct lpfc_hba *); | |
58 | ||
59 | static void | |
60 | lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) | |
61 | { | |
6e8215e4 | 62 | int warn_on = 0; |
dea3101e JB |
63 | |
64 | spin_lock_irq(phba->host->host_lock); | |
65 | if (!(ndlp->nlp_flag & NLP_NODEV_TMO)) { | |
66 | spin_unlock_irq(phba->host->host_lock); | |
67 | return; | |
68 | } | |
69 | ||
70 | ndlp->nlp_flag &= ~NLP_NODEV_TMO; | |
71 | ||
72 | if (ndlp->nlp_sid != NLP_NO_SID) { | |
6e8215e4 | 73 | warn_on = 1; |
dea3101e JB |
74 | /* flush the target */ |
75 | lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring], | |
76 | ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT); | |
77 | } | |
78 | spin_unlock_irq(phba->host->host_lock); | |
79 | ||
6e8215e4 JSEC |
80 | if (warn_on) { |
81 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, | |
82 | "%d:0203 Nodev timeout on NPort x%x " | |
83 | "Data: x%x x%x x%x\n", | |
84 | phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag, | |
85 | ndlp->nlp_state, ndlp->nlp_rpi); | |
86 | } else { | |
87 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
88 | "%d:0204 Nodev timeout on NPort x%x " | |
89 | "Data: x%x x%x x%x\n", | |
90 | phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag, | |
91 | ndlp->nlp_state, ndlp->nlp_rpi); | |
92 | } | |
93 | ||
dea3101e JB |
94 | lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM); |
95 | return; | |
96 | } | |
97 | ||
98 | static void | |
99 | lpfc_work_list_done(struct lpfc_hba * phba) | |
100 | { | |
101 | struct lpfc_work_evt *evtp = NULL; | |
102 | struct lpfc_nodelist *ndlp; | |
103 | int free_evt; | |
104 | ||
105 | spin_lock_irq(phba->host->host_lock); | |
106 | while(!list_empty(&phba->work_list)) { | |
107 | list_remove_head((&phba->work_list), evtp, typeof(*evtp), | |
108 | evt_listp); | |
109 | spin_unlock_irq(phba->host->host_lock); | |
110 | free_evt = 1; | |
111 | switch(evtp->evt) { | |
112 | case LPFC_EVT_NODEV_TMO: | |
113 | ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); | |
114 | lpfc_process_nodev_timeout(phba, ndlp); | |
115 | free_evt = 0; | |
116 | break; | |
117 | case LPFC_EVT_ELS_RETRY: | |
118 | ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); | |
119 | lpfc_els_retry_delay_handler(ndlp); | |
120 | free_evt = 0; | |
121 | break; | |
122 | case LPFC_EVT_ONLINE: | |
123 | *(int *)(evtp->evt_arg1) = lpfc_online(phba); | |
124 | complete((struct completion *)(evtp->evt_arg2)); | |
125 | break; | |
126 | case LPFC_EVT_OFFLINE: | |
127 | *(int *)(evtp->evt_arg1) = lpfc_offline(phba); | |
128 | complete((struct completion *)(evtp->evt_arg2)); | |
129 | break; | |
130 | } | |
131 | if (free_evt) | |
132 | kfree(evtp); | |
133 | spin_lock_irq(phba->host->host_lock); | |
134 | } | |
135 | spin_unlock_irq(phba->host->host_lock); | |
136 | ||
137 | } | |
138 | ||
139 | static void | |
140 | lpfc_work_done(struct lpfc_hba * phba) | |
141 | { | |
142 | struct lpfc_sli_ring *pring; | |
143 | int i; | |
144 | uint32_t ha_copy; | |
145 | uint32_t control; | |
146 | uint32_t work_hba_events; | |
147 | ||
148 | spin_lock_irq(phba->host->host_lock); | |
149 | ha_copy = phba->work_ha; | |
150 | phba->work_ha = 0; | |
151 | work_hba_events=phba->work_hba_events; | |
152 | spin_unlock_irq(phba->host->host_lock); | |
153 | ||
154 | if(ha_copy & HA_ERATT) | |
155 | lpfc_handle_eratt(phba); | |
156 | ||
157 | if(ha_copy & HA_MBATT) | |
158 | lpfc_sli_handle_mb_event(phba); | |
159 | ||
160 | if(ha_copy & HA_LATT) | |
161 | lpfc_handle_latt(phba); | |
162 | ||
163 | if (work_hba_events & WORKER_DISC_TMO) | |
164 | lpfc_disc_timeout_handler(phba); | |
165 | ||
166 | if (work_hba_events & WORKER_ELS_TMO) | |
167 | lpfc_els_timeout_handler(phba); | |
168 | ||
169 | if (work_hba_events & WORKER_MBOX_TMO) | |
170 | lpfc_mbox_timeout_handler(phba); | |
171 | ||
172 | if (work_hba_events & WORKER_FDMI_TMO) | |
173 | lpfc_fdmi_tmo_handler(phba); | |
174 | ||
175 | spin_lock_irq(phba->host->host_lock); | |
176 | phba->work_hba_events &= ~work_hba_events; | |
177 | spin_unlock_irq(phba->host->host_lock); | |
178 | ||
179 | for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) { | |
180 | pring = &phba->sli.ring[i]; | |
181 | if ((ha_copy & HA_RXATT) | |
182 | || (pring->flag & LPFC_DEFERRED_RING_EVENT)) { | |
183 | if (pring->flag & LPFC_STOP_IOCB_MASK) { | |
184 | pring->flag |= LPFC_DEFERRED_RING_EVENT; | |
185 | } else { | |
186 | lpfc_sli_handle_slow_ring_event(phba, pring, | |
187 | (ha_copy & | |
188 | HA_RXMASK)); | |
189 | pring->flag &= ~LPFC_DEFERRED_RING_EVENT; | |
190 | } | |
191 | /* | |
192 | * Turn on Ring interrupts | |
193 | */ | |
194 | spin_lock_irq(phba->host->host_lock); | |
195 | control = readl(phba->HCregaddr); | |
196 | control |= (HC_R0INT_ENA << i); | |
197 | writel(control, phba->HCregaddr); | |
198 | readl(phba->HCregaddr); /* flush */ | |
199 | spin_unlock_irq(phba->host->host_lock); | |
200 | } | |
201 | } | |
202 | ||
203 | lpfc_work_list_done (phba); | |
204 | ||
205 | } | |
206 | ||
207 | static int | |
208 | check_work_wait_done(struct lpfc_hba *phba) { | |
209 | ||
210 | spin_lock_irq(phba->host->host_lock); | |
211 | if (phba->work_ha || | |
212 | phba->work_hba_events || | |
213 | (!list_empty(&phba->work_list)) || | |
214 | kthread_should_stop()) { | |
215 | spin_unlock_irq(phba->host->host_lock); | |
216 | return 1; | |
217 | } else { | |
218 | spin_unlock_irq(phba->host->host_lock); | |
219 | return 0; | |
220 | } | |
221 | } | |
222 | ||
223 | int | |
224 | lpfc_do_work(void *p) | |
225 | { | |
226 | struct lpfc_hba *phba = p; | |
227 | int rc; | |
228 | DECLARE_WAIT_QUEUE_HEAD(work_waitq); | |
229 | ||
230 | set_user_nice(current, -20); | |
231 | phba->work_wait = &work_waitq; | |
232 | ||
233 | while (1) { | |
234 | ||
235 | rc = wait_event_interruptible(work_waitq, | |
236 | check_work_wait_done(phba)); | |
237 | BUG_ON(rc); | |
238 | ||
239 | if (kthread_should_stop()) | |
240 | break; | |
241 | ||
242 | lpfc_work_done(phba); | |
243 | ||
244 | } | |
245 | phba->work_wait = NULL; | |
246 | return 0; | |
247 | } | |
248 | ||
249 | /* | |
250 | * This is only called to handle FC worker events. Since this a rare | |
251 | * occurance, we allocate a struct lpfc_work_evt structure here instead of | |
252 | * embedding it in the IOCB. | |
253 | */ | |
254 | int | |
255 | lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2, | |
256 | uint32_t evt) | |
257 | { | |
258 | struct lpfc_work_evt *evtp; | |
259 | ||
260 | /* | |
261 | * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will | |
262 | * be queued to worker thread for processing | |
263 | */ | |
264 | evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL); | |
265 | if (!evtp) | |
266 | return 0; | |
267 | ||
268 | evtp->evt_arg1 = arg1; | |
269 | evtp->evt_arg2 = arg2; | |
270 | evtp->evt = evt; | |
271 | ||
272 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
273 | spin_lock_irq(phba->host->host_lock); | |
274 | if (phba->work_wait) | |
275 | wake_up(phba->work_wait); | |
276 | spin_unlock_irq(phba->host->host_lock); | |
277 | ||
278 | return 1; | |
279 | } | |
280 | ||
281 | int | |
282 | lpfc_linkdown(struct lpfc_hba * phba) | |
283 | { | |
284 | struct lpfc_sli *psli; | |
285 | struct lpfc_nodelist *ndlp, *next_ndlp; | |
286 | struct list_head *listp; | |
287 | struct list_head *node_list[7]; | |
288 | LPFC_MBOXQ_t *mb; | |
289 | int rc, i; | |
290 | ||
291 | psli = &phba->sli; | |
292 | ||
293 | spin_lock_irq(phba->host->host_lock); | |
294 | phba->hba_state = LPFC_LINK_DOWN; | |
295 | spin_unlock_irq(phba->host->host_lock); | |
296 | ||
297 | /* Clean up any firmware default rpi's */ | |
298 | if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { | |
299 | lpfc_unreg_did(phba, 0xffffffff, mb); | |
300 | mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl; | |
301 | if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB)) | |
302 | == MBX_NOT_FINISHED) { | |
303 | mempool_free( mb, phba->mbox_mem_pool); | |
304 | } | |
305 | } | |
306 | ||
307 | /* Cleanup any outstanding RSCN activity */ | |
308 | lpfc_els_flush_rscn(phba); | |
309 | ||
310 | /* Cleanup any outstanding ELS commands */ | |
311 | lpfc_els_flush_cmd(phba); | |
312 | ||
313 | /* Issue a LINK DOWN event to all nodes */ | |
314 | node_list[0] = &phba->fc_npr_list; /* MUST do this list first */ | |
315 | node_list[1] = &phba->fc_nlpmap_list; | |
316 | node_list[2] = &phba->fc_nlpunmap_list; | |
317 | node_list[3] = &phba->fc_prli_list; | |
318 | node_list[4] = &phba->fc_reglogin_list; | |
319 | node_list[5] = &phba->fc_adisc_list; | |
320 | node_list[6] = &phba->fc_plogi_list; | |
321 | for (i = 0; i < 7; i++) { | |
322 | listp = node_list[i]; | |
323 | if (list_empty(listp)) | |
324 | continue; | |
325 | ||
326 | list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) { | |
327 | /* Fabric nodes are not handled thru state machine for | |
328 | link down */ | |
329 | if (ndlp->nlp_type & NLP_FABRIC) { | |
330 | /* Remove ALL Fabric nodes except Fabric_DID */ | |
331 | if (ndlp->nlp_DID != Fabric_DID) { | |
332 | /* Take it off current list and free */ | |
333 | lpfc_nlp_list(phba, ndlp, | |
334 | NLP_NO_LIST); | |
335 | } | |
336 | } | |
337 | else { | |
338 | ||
339 | rc = lpfc_disc_state_machine(phba, ndlp, NULL, | |
340 | NLP_EVT_DEVICE_RECOVERY); | |
341 | ||
342 | /* Check config parameter use-adisc or FCP-2 */ | |
343 | if ((rc != NLP_STE_FREED_NODE) && | |
344 | (phba->cfg_use_adisc == 0) && | |
345 | !(ndlp->nlp_fcp_info & | |
346 | NLP_FCP_2_DEVICE)) { | |
347 | /* We know we will have to relogin, so | |
348 | * unreglogin the rpi right now to fail | |
349 | * any outstanding I/Os quickly. | |
350 | */ | |
351 | lpfc_unreg_rpi(phba, ndlp); | |
352 | } | |
353 | } | |
354 | } | |
355 | } | |
356 | ||
357 | /* free any ndlp's on unused list */ | |
358 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list, | |
359 | nlp_listp) { | |
360 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); | |
361 | } | |
362 | ||
363 | /* Setup myDID for link up if we are in pt2pt mode */ | |
364 | if (phba->fc_flag & FC_PT2PT) { | |
365 | phba->fc_myDID = 0; | |
366 | if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { | |
367 | lpfc_config_link(phba, mb); | |
368 | mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl; | |
369 | if (lpfc_sli_issue_mbox | |
370 | (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB)) | |
371 | == MBX_NOT_FINISHED) { | |
372 | mempool_free( mb, phba->mbox_mem_pool); | |
373 | } | |
374 | } | |
375 | spin_lock_irq(phba->host->host_lock); | |
376 | phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); | |
377 | spin_unlock_irq(phba->host->host_lock); | |
378 | } | |
379 | spin_lock_irq(phba->host->host_lock); | |
380 | phba->fc_flag &= ~FC_LBIT; | |
381 | spin_unlock_irq(phba->host->host_lock); | |
382 | ||
383 | /* Turn off discovery timer if its running */ | |
384 | lpfc_can_disctmo(phba); | |
385 | ||
386 | /* Must process IOCBs on all rings to handle ABORTed I/Os */ | |
387 | return (0); | |
388 | } | |
389 | ||
390 | static int | |
391 | lpfc_linkup(struct lpfc_hba * phba) | |
392 | { | |
393 | struct lpfc_nodelist *ndlp, *next_ndlp; | |
394 | ||
395 | spin_lock_irq(phba->host->host_lock); | |
396 | phba->hba_state = LPFC_LINK_UP; | |
397 | phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | | |
398 | FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); | |
399 | phba->fc_flag |= FC_NDISC_ACTIVE; | |
400 | phba->fc_ns_retry = 0; | |
401 | spin_unlock_irq(phba->host->host_lock); | |
402 | ||
403 | ||
404 | /* | |
405 | * Clean up old Fabric NLP_FABRIC logins. | |
406 | */ | |
407 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list, | |
408 | nlp_listp) { | |
409 | if (ndlp->nlp_DID == Fabric_DID) { | |
410 | /* Take it off current list and free */ | |
411 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); | |
412 | } | |
413 | } | |
414 | ||
415 | /* free any ndlp's on unused list */ | |
416 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list, | |
417 | nlp_listp) { | |
418 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); | |
419 | } | |
420 | ||
421 | return 0; | |
422 | } | |
423 | ||
424 | /* | |
425 | * This routine handles processing a CLEAR_LA mailbox | |
426 | * command upon completion. It is setup in the LPFC_MBOXQ | |
427 | * as the completion routine when the command is | |
428 | * handed off to the SLI layer. | |
429 | */ | |
430 | void | |
431 | lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) | |
432 | { | |
433 | struct lpfc_sli *psli; | |
434 | MAILBOX_t *mb; | |
435 | uint32_t control; | |
436 | ||
437 | psli = &phba->sli; | |
438 | mb = &pmb->mb; | |
439 | /* Since we don't do discovery right now, turn these off here */ | |
440 | psli->ring[psli->ip_ring].flag &= ~LPFC_STOP_IOCB_EVENT; | |
441 | psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT; | |
442 | psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT; | |
443 | ||
444 | /* Check for error */ | |
445 | if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { | |
446 | /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ | |
447 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
448 | "%d:0320 CLEAR_LA mbxStatus error x%x hba " | |
449 | "state x%x\n", | |
450 | phba->brd_no, mb->mbxStatus, phba->hba_state); | |
451 | ||
452 | phba->hba_state = LPFC_HBA_ERROR; | |
453 | goto out; | |
454 | } | |
455 | ||
456 | if (phba->fc_flag & FC_ABORT_DISCOVERY) | |
457 | goto out; | |
458 | ||
459 | phba->num_disc_nodes = 0; | |
460 | /* go thru NPR list and issue ELS PLOGIs */ | |
461 | if (phba->fc_npr_cnt) { | |
462 | lpfc_els_disc_plogi(phba); | |
463 | } | |
464 | ||
465 | if(!phba->num_disc_nodes) { | |
466 | spin_lock_irq(phba->host->host_lock); | |
467 | phba->fc_flag &= ~FC_NDISC_ACTIVE; | |
468 | spin_unlock_irq(phba->host->host_lock); | |
469 | } | |
470 | ||
471 | phba->hba_state = LPFC_HBA_READY; | |
472 | ||
473 | out: | |
474 | /* Device Discovery completes */ | |
475 | lpfc_printf_log(phba, | |
476 | KERN_INFO, | |
477 | LOG_DISCOVERY, | |
478 | "%d:0225 Device Discovery completes\n", | |
479 | phba->brd_no); | |
480 | ||
481 | mempool_free( pmb, phba->mbox_mem_pool); | |
482 | ||
483 | spin_lock_irq(phba->host->host_lock); | |
484 | phba->fc_flag &= ~FC_ABORT_DISCOVERY; | |
485 | if (phba->fc_flag & FC_ESTABLISH_LINK) { | |
486 | phba->fc_flag &= ~FC_ESTABLISH_LINK; | |
487 | } | |
488 | spin_unlock_irq(phba->host->host_lock); | |
489 | ||
490 | del_timer_sync(&phba->fc_estabtmo); | |
491 | ||
492 | lpfc_can_disctmo(phba); | |
493 | ||
494 | /* turn on Link Attention interrupts */ | |
495 | spin_lock_irq(phba->host->host_lock); | |
496 | psli->sli_flag |= LPFC_PROCESS_LA; | |
497 | control = readl(phba->HCregaddr); | |
498 | control |= HC_LAINT_ENA; | |
499 | writel(control, phba->HCregaddr); | |
500 | readl(phba->HCregaddr); /* flush */ | |
501 | spin_unlock_irq(phba->host->host_lock); | |
502 | ||
503 | return; | |
504 | } | |
505 | ||
506 | static void | |
507 | lpfc_mbx_cmpl_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) | |
508 | { | |
509 | struct lpfc_sli *psli; | |
510 | MAILBOX_t *mb; | |
511 | ||
512 | psli = &phba->sli; | |
513 | mb = &pmb->mb; | |
514 | /* Check for error */ | |
515 | if (mb->mbxStatus) { | |
516 | /* CONFIG_LINK mbox error <mbxStatus> state <hba_state> */ | |
517 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
518 | "%d:0306 CONFIG_LINK mbxStatus error x%x " | |
519 | "HBA state x%x\n", | |
520 | phba->brd_no, mb->mbxStatus, phba->hba_state); | |
521 | ||
522 | lpfc_linkdown(phba); | |
523 | phba->hba_state = LPFC_HBA_ERROR; | |
524 | goto out; | |
525 | } | |
526 | ||
527 | if (phba->hba_state == LPFC_LOCAL_CFG_LINK) { | |
528 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
529 | /* If we are public loop and L bit was set */ | |
530 | if ((phba->fc_flag & FC_PUBLIC_LOOP) && | |
531 | !(phba->fc_flag & FC_LBIT)) { | |
532 | /* Need to wait for FAN - use discovery timer | |
533 | * for timeout. hba_state is identically | |
534 | * LPFC_LOCAL_CFG_LINK while waiting for FAN | |
535 | */ | |
536 | lpfc_set_disctmo(phba); | |
537 | mempool_free( pmb, phba->mbox_mem_pool); | |
538 | return; | |
539 | } | |
540 | } | |
541 | ||
542 | /* Start discovery by sending a FLOGI hba_state is identically | |
543 | * LPFC_FLOGI while waiting for FLOGI cmpl | |
544 | */ | |
545 | phba->hba_state = LPFC_FLOGI; | |
546 | lpfc_set_disctmo(phba); | |
547 | lpfc_initial_flogi(phba); | |
548 | mempool_free( pmb, phba->mbox_mem_pool); | |
549 | return; | |
550 | } | |
551 | if (phba->hba_state == LPFC_FABRIC_CFG_LINK) { | |
552 | mempool_free( pmb, phba->mbox_mem_pool); | |
553 | return; | |
554 | } | |
555 | ||
556 | out: | |
557 | /* CONFIG_LINK bad hba state <hba_state> */ | |
558 | lpfc_printf_log(phba, | |
559 | KERN_ERR, | |
560 | LOG_DISCOVERY, | |
561 | "%d:0200 CONFIG_LINK bad hba state x%x\n", | |
562 | phba->brd_no, phba->hba_state); | |
563 | ||
564 | if (phba->hba_state != LPFC_CLEAR_LA) { | |
565 | lpfc_clear_la(phba, pmb); | |
566 | pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la; | |
567 | if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB)) | |
568 | == MBX_NOT_FINISHED) { | |
569 | mempool_free( pmb, phba->mbox_mem_pool); | |
570 | lpfc_disc_flush_list(phba); | |
571 | psli->ring[(psli->ip_ring)].flag &= | |
572 | ~LPFC_STOP_IOCB_EVENT; | |
573 | psli->ring[(psli->fcp_ring)].flag &= | |
574 | ~LPFC_STOP_IOCB_EVENT; | |
575 | psli->ring[(psli->next_ring)].flag &= | |
576 | ~LPFC_STOP_IOCB_EVENT; | |
577 | phba->hba_state = LPFC_HBA_READY; | |
578 | } | |
579 | } else { | |
580 | mempool_free( pmb, phba->mbox_mem_pool); | |
581 | } | |
582 | return; | |
583 | } | |
584 | ||
585 | static void | |
586 | lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) | |
587 | { | |
588 | struct lpfc_sli *psli = &phba->sli; | |
589 | MAILBOX_t *mb = &pmb->mb; | |
590 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; | |
591 | ||
592 | ||
593 | /* Check for error */ | |
594 | if (mb->mbxStatus) { | |
595 | /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ | |
596 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
597 | "%d:0319 READ_SPARAM mbxStatus error x%x " | |
598 | "hba state x%x>\n", | |
599 | phba->brd_no, mb->mbxStatus, phba->hba_state); | |
600 | ||
601 | lpfc_linkdown(phba); | |
602 | phba->hba_state = LPFC_HBA_ERROR; | |
603 | goto out; | |
604 | } | |
605 | ||
606 | memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt, | |
607 | sizeof (struct serv_parm)); | |
608 | memcpy((uint8_t *) & phba->fc_nodename, | |
609 | (uint8_t *) & phba->fc_sparam.nodeName, | |
610 | sizeof (struct lpfc_name)); | |
611 | memcpy((uint8_t *) & phba->fc_portname, | |
612 | (uint8_t *) & phba->fc_sparam.portName, | |
613 | sizeof (struct lpfc_name)); | |
614 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
615 | kfree(mp); | |
616 | mempool_free( pmb, phba->mbox_mem_pool); | |
617 | return; | |
618 | ||
619 | out: | |
620 | pmb->context1 = NULL; | |
621 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
622 | kfree(mp); | |
623 | if (phba->hba_state != LPFC_CLEAR_LA) { | |
624 | lpfc_clear_la(phba, pmb); | |
625 | pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la; | |
626 | if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB)) | |
627 | == MBX_NOT_FINISHED) { | |
628 | mempool_free( pmb, phba->mbox_mem_pool); | |
629 | lpfc_disc_flush_list(phba); | |
630 | psli->ring[(psli->ip_ring)].flag &= | |
631 | ~LPFC_STOP_IOCB_EVENT; | |
632 | psli->ring[(psli->fcp_ring)].flag &= | |
633 | ~LPFC_STOP_IOCB_EVENT; | |
634 | psli->ring[(psli->next_ring)].flag &= | |
635 | ~LPFC_STOP_IOCB_EVENT; | |
636 | phba->hba_state = LPFC_HBA_READY; | |
637 | } | |
638 | } else { | |
639 | mempool_free( pmb, phba->mbox_mem_pool); | |
640 | } | |
641 | return; | |
642 | } | |
643 | ||
644 | static void | |
645 | lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la) | |
646 | { | |
647 | int i; | |
648 | LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox; | |
649 | sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
650 | cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
651 | ||
652 | spin_lock_irq(phba->host->host_lock); | |
653 | switch(la->UlnkSpeed) { | |
654 | case LA_1GHZ_LINK: | |
655 | phba->fc_linkspeed = LA_1GHZ_LINK; | |
656 | break; | |
657 | case LA_2GHZ_LINK: | |
658 | phba->fc_linkspeed = LA_2GHZ_LINK; | |
659 | break; | |
660 | case LA_4GHZ_LINK: | |
661 | phba->fc_linkspeed = LA_4GHZ_LINK; | |
662 | break; | |
663 | default: | |
664 | phba->fc_linkspeed = LA_UNKNW_LINK; | |
665 | break; | |
666 | } | |
667 | ||
668 | phba->fc_topology = la->topology; | |
669 | ||
670 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
671 | /* Get Loop Map information */ | |
672 | ||
673 | if (la->il) | |
674 | phba->fc_flag |= FC_LBIT; | |
675 | ||
676 | phba->fc_myDID = la->granted_AL_PA; | |
677 | i = la->un.lilpBde64.tus.f.bdeSize; | |
678 | ||
679 | if (i == 0) { | |
680 | phba->alpa_map[0] = 0; | |
681 | } else { | |
682 | if (phba->cfg_log_verbose & LOG_LINK_EVENT) { | |
683 | int numalpa, j, k; | |
684 | union { | |
685 | uint8_t pamap[16]; | |
686 | struct { | |
687 | uint32_t wd1; | |
688 | uint32_t wd2; | |
689 | uint32_t wd3; | |
690 | uint32_t wd4; | |
691 | } pa; | |
692 | } un; | |
693 | numalpa = phba->alpa_map[0]; | |
694 | j = 0; | |
695 | while (j < numalpa) { | |
696 | memset(un.pamap, 0, 16); | |
697 | for (k = 1; j < numalpa; k++) { | |
698 | un.pamap[k - 1] = | |
699 | phba->alpa_map[j + 1]; | |
700 | j++; | |
701 | if (k == 16) | |
702 | break; | |
703 | } | |
704 | /* Link Up Event ALPA map */ | |
705 | lpfc_printf_log(phba, | |
706 | KERN_WARNING, | |
707 | LOG_LINK_EVENT, | |
708 | "%d:1304 Link Up Event " | |
709 | "ALPA map Data: x%x " | |
710 | "x%x x%x x%x\n", | |
711 | phba->brd_no, | |
712 | un.pa.wd1, un.pa.wd2, | |
713 | un.pa.wd3, un.pa.wd4); | |
714 | } | |
715 | } | |
716 | } | |
717 | } else { | |
718 | phba->fc_myDID = phba->fc_pref_DID; | |
719 | phba->fc_flag |= FC_LBIT; | |
720 | } | |
721 | spin_unlock_irq(phba->host->host_lock); | |
722 | ||
723 | lpfc_linkup(phba); | |
724 | if (sparam_mbox) { | |
725 | lpfc_read_sparam(phba, sparam_mbox); | |
726 | sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; | |
727 | lpfc_sli_issue_mbox(phba, sparam_mbox, | |
728 | (MBX_NOWAIT | MBX_STOP_IOCB)); | |
729 | } | |
730 | ||
731 | if (cfglink_mbox) { | |
732 | phba->hba_state = LPFC_LOCAL_CFG_LINK; | |
733 | lpfc_config_link(phba, cfglink_mbox); | |
734 | cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_config_link; | |
735 | lpfc_sli_issue_mbox(phba, cfglink_mbox, | |
736 | (MBX_NOWAIT | MBX_STOP_IOCB)); | |
737 | } | |
738 | } | |
739 | ||
740 | static void | |
741 | lpfc_mbx_issue_link_down(struct lpfc_hba *phba) { | |
742 | uint32_t control; | |
743 | struct lpfc_sli *psli = &phba->sli; | |
744 | ||
745 | lpfc_linkdown(phba); | |
746 | ||
747 | /* turn on Link Attention interrupts - no CLEAR_LA needed */ | |
748 | spin_lock_irq(phba->host->host_lock); | |
749 | psli->sli_flag |= LPFC_PROCESS_LA; | |
750 | control = readl(phba->HCregaddr); | |
751 | control |= HC_LAINT_ENA; | |
752 | writel(control, phba->HCregaddr); | |
753 | readl(phba->HCregaddr); /* flush */ | |
754 | spin_unlock_irq(phba->host->host_lock); | |
755 | } | |
756 | ||
757 | /* | |
758 | * This routine handles processing a READ_LA mailbox | |
759 | * command upon completion. It is setup in the LPFC_MBOXQ | |
760 | * as the completion routine when the command is | |
761 | * handed off to the SLI layer. | |
762 | */ | |
763 | void | |
764 | lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) | |
765 | { | |
766 | READ_LA_VAR *la; | |
767 | MAILBOX_t *mb = &pmb->mb; | |
768 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); | |
769 | ||
770 | /* Check for error */ | |
771 | if (mb->mbxStatus) { | |
772 | lpfc_printf_log(phba, | |
773 | KERN_INFO, | |
774 | LOG_LINK_EVENT, | |
775 | "%d:1307 READ_LA mbox error x%x state x%x\n", | |
776 | phba->brd_no, | |
777 | mb->mbxStatus, phba->hba_state); | |
778 | lpfc_mbx_issue_link_down(phba); | |
779 | phba->hba_state = LPFC_HBA_ERROR; | |
780 | goto lpfc_mbx_cmpl_read_la_free_mbuf; | |
781 | } | |
782 | ||
783 | la = (READ_LA_VAR *) & pmb->mb.un.varReadLA; | |
784 | ||
785 | memcpy(&phba->alpa_map[0], mp->virt, 128); | |
786 | ||
787 | if (((phba->fc_eventTag + 1) < la->eventTag) || | |
788 | (phba->fc_eventTag == la->eventTag)) { | |
789 | phba->fc_stat.LinkMultiEvent++; | |
790 | if (la->attType == AT_LINK_UP) { | |
791 | if (phba->fc_eventTag != 0) | |
792 | lpfc_linkdown(phba); | |
793 | } | |
794 | } | |
795 | ||
796 | phba->fc_eventTag = la->eventTag; | |
797 | ||
798 | if (la->attType == AT_LINK_UP) { | |
799 | phba->fc_stat.LinkUp++; | |
800 | lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, | |
801 | "%d:1303 Link Up Event x%x received " | |
802 | "Data: x%x x%x x%x x%x\n", | |
803 | phba->brd_no, la->eventTag, phba->fc_eventTag, | |
804 | la->granted_AL_PA, la->UlnkSpeed, | |
805 | phba->alpa_map[0]); | |
806 | lpfc_mbx_process_link_up(phba, la); | |
807 | } else { | |
808 | phba->fc_stat.LinkDown++; | |
809 | lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, | |
810 | "%d:1305 Link Down Event x%x received " | |
811 | "Data: x%x x%x x%x\n", | |
812 | phba->brd_no, la->eventTag, phba->fc_eventTag, | |
813 | phba->hba_state, phba->fc_flag); | |
814 | lpfc_mbx_issue_link_down(phba); | |
815 | } | |
816 | ||
817 | lpfc_mbx_cmpl_read_la_free_mbuf: | |
818 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
819 | kfree(mp); | |
820 | mempool_free(pmb, phba->mbox_mem_pool); | |
821 | return; | |
822 | } | |
823 | ||
824 | /* | |
825 | * This routine handles processing a REG_LOGIN mailbox | |
826 | * command upon completion. It is setup in the LPFC_MBOXQ | |
827 | * as the completion routine when the command is | |
828 | * handed off to the SLI layer. | |
829 | */ | |
830 | void | |
831 | lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) | |
832 | { | |
833 | struct lpfc_sli *psli; | |
834 | MAILBOX_t *mb; | |
835 | struct lpfc_dmabuf *mp; | |
836 | struct lpfc_nodelist *ndlp; | |
837 | ||
838 | psli = &phba->sli; | |
839 | mb = &pmb->mb; | |
840 | ||
841 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
842 | mp = (struct lpfc_dmabuf *) (pmb->context1); | |
843 | ||
844 | pmb->context1 = NULL; | |
845 | ||
846 | /* Good status, call state machine */ | |
847 | lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); | |
848 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
849 | kfree(mp); | |
850 | mempool_free( pmb, phba->mbox_mem_pool); | |
851 | ||
852 | return; | |
853 | } | |
854 | ||
855 | /* | |
856 | * This routine handles processing a Fabric REG_LOGIN mailbox | |
857 | * command upon completion. It is setup in the LPFC_MBOXQ | |
858 | * as the completion routine when the command is | |
859 | * handed off to the SLI layer. | |
860 | */ | |
861 | void | |
862 | lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) | |
863 | { | |
864 | struct lpfc_sli *psli; | |
865 | MAILBOX_t *mb; | |
866 | struct lpfc_dmabuf *mp; | |
867 | struct lpfc_nodelist *ndlp; | |
868 | struct lpfc_nodelist *ndlp_fdmi; | |
869 | ||
870 | ||
871 | psli = &phba->sli; | |
872 | mb = &pmb->mb; | |
873 | ||
874 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
875 | mp = (struct lpfc_dmabuf *) (pmb->context1); | |
876 | ||
877 | if (mb->mbxStatus) { | |
878 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
879 | kfree(mp); | |
880 | mempool_free( pmb, phba->mbox_mem_pool); | |
881 | mempool_free( ndlp, phba->nlp_mem_pool); | |
882 | ||
883 | /* FLOGI failed, so just use loop map to make discovery list */ | |
884 | lpfc_disc_list_loopmap(phba); | |
885 | ||
886 | /* Start discovery */ | |
887 | lpfc_disc_start(phba); | |
888 | return; | |
889 | } | |
890 | ||
891 | pmb->context1 = NULL; | |
892 | ||
893 | if (ndlp->nlp_rpi != 0) | |
894 | lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi); | |
895 | ndlp->nlp_rpi = mb->un.varWords[0]; | |
896 | lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi); | |
897 | ndlp->nlp_type |= NLP_FABRIC; | |
898 | ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; | |
899 | lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); | |
900 | ||
901 | if (phba->hba_state == LPFC_FABRIC_CFG_LINK) { | |
902 | /* This NPort has been assigned an NPort_ID by the fabric as a | |
903 | * result of the completed fabric login. Issue a State Change | |
904 | * Registration (SCR) ELS request to the fabric controller | |
905 | * (SCR_DID) so that this NPort gets RSCN events from the | |
906 | * fabric. | |
907 | */ | |
908 | lpfc_issue_els_scr(phba, SCR_DID, 0); | |
909 | ||
910 | /* Allocate a new node instance. If the pool is empty, just | |
911 | * start the discovery process and skip the Nameserver login | |
912 | * process. This is attempted again later on. Otherwise, issue | |
913 | * a Port Login (PLOGI) to the NameServer | |
914 | */ | |
915 | if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL)) | |
916 | == 0) { | |
917 | lpfc_disc_start(phba); | |
918 | } else { | |
919 | lpfc_nlp_init(phba, ndlp, NameServer_DID); | |
920 | ndlp->nlp_type |= NLP_FABRIC; | |
921 | ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; | |
922 | lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); | |
923 | lpfc_issue_els_plogi(phba, ndlp, 0); | |
924 | if (phba->cfg_fdmi_on) { | |
925 | if ((ndlp_fdmi = mempool_alloc( | |
926 | phba->nlp_mem_pool, | |
927 | GFP_KERNEL))) { | |
928 | lpfc_nlp_init(phba, ndlp_fdmi, | |
929 | FDMI_DID); | |
930 | ndlp_fdmi->nlp_type |= NLP_FABRIC; | |
931 | ndlp_fdmi->nlp_state = | |
932 | NLP_STE_PLOGI_ISSUE; | |
933 | lpfc_issue_els_plogi(phba, ndlp_fdmi, | |
934 | 0); | |
935 | } | |
936 | } | |
937 | } | |
938 | } | |
939 | ||
940 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
941 | kfree(mp); | |
942 | mempool_free( pmb, phba->mbox_mem_pool); | |
943 | ||
944 | return; | |
945 | } | |
946 | ||
947 | /* | |
948 | * This routine handles processing a NameServer REG_LOGIN mailbox | |
949 | * command upon completion. It is setup in the LPFC_MBOXQ | |
950 | * as the completion routine when the command is | |
951 | * handed off to the SLI layer. | |
952 | */ | |
953 | void | |
954 | lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) | |
955 | { | |
956 | struct lpfc_sli *psli; | |
957 | MAILBOX_t *mb; | |
958 | struct lpfc_dmabuf *mp; | |
959 | struct lpfc_nodelist *ndlp; | |
960 | ||
961 | psli = &phba->sli; | |
962 | mb = &pmb->mb; | |
963 | ||
964 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
965 | mp = (struct lpfc_dmabuf *) (pmb->context1); | |
966 | ||
967 | if (mb->mbxStatus) { | |
968 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
969 | kfree(mp); | |
970 | mempool_free( pmb, phba->mbox_mem_pool); | |
971 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); | |
972 | ||
973 | /* RegLogin failed, so just use loop map to make discovery | |
974 | list */ | |
975 | lpfc_disc_list_loopmap(phba); | |
976 | ||
977 | /* Start discovery */ | |
978 | lpfc_disc_start(phba); | |
979 | return; | |
980 | } | |
981 | ||
982 | pmb->context1 = NULL; | |
983 | ||
984 | if (ndlp->nlp_rpi != 0) | |
985 | lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi); | |
986 | ndlp->nlp_rpi = mb->un.varWords[0]; | |
987 | lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi); | |
988 | ndlp->nlp_type |= NLP_FABRIC; | |
989 | ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; | |
990 | lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); | |
991 | ||
992 | if (phba->hba_state < LPFC_HBA_READY) { | |
993 | /* Link up discovery requires Fabrib registration. */ | |
994 | lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID); | |
995 | lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN); | |
996 | lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID); | |
997 | } | |
998 | ||
999 | phba->fc_ns_retry = 0; | |
1000 | /* Good status, issue CT Request to NameServer */ | |
1001 | if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) { | |
1002 | /* Cannot issue NameServer Query, so finish up discovery */ | |
1003 | lpfc_disc_start(phba); | |
1004 | } | |
1005 | ||
1006 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1007 | kfree(mp); | |
1008 | mempool_free( pmb, phba->mbox_mem_pool); | |
1009 | ||
1010 | return; | |
1011 | } | |
1012 | ||
1013 | static void | |
1014 | lpfc_register_remote_port(struct lpfc_hba * phba, | |
1015 | struct lpfc_nodelist * ndlp) | |
1016 | { | |
1017 | struct fc_rport *rport; | |
1018 | struct lpfc_rport_data *rdata; | |
1019 | struct fc_rport_identifiers rport_ids; | |
dea3101e JB |
1020 | |
1021 | /* Remote port has reappeared. Re-register w/ FC transport */ | |
68ce1eb5 AM |
1022 | rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); |
1023 | rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); | |
dea3101e JB |
1024 | rport_ids.port_id = ndlp->nlp_DID; |
1025 | rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; | |
1026 | if (ndlp->nlp_type & NLP_FCP_TARGET) | |
1027 | rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; | |
1028 | if (ndlp->nlp_type & NLP_FCP_INITIATOR) | |
1029 | rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; | |
1030 | ||
19a7b4ae | 1031 | scsi_block_requests(phba->host); |
dea3101e JB |
1032 | ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids); |
1033 | if (!rport) { | |
1034 | dev_printk(KERN_WARNING, &phba->pcidev->dev, | |
1035 | "Warning: fc_remote_port_add failed\n"); | |
1036 | return; | |
1037 | } | |
1038 | ||
1039 | /* initialize static port data */ | |
1040 | rport->maxframe_size = ndlp->nlp_maxframe; | |
1041 | rport->supported_classes = ndlp->nlp_class_sup; | |
1042 | if ((rport->scsi_target_id != -1) && | |
1043 | (rport->scsi_target_id < MAX_FCP_TARGET)) { | |
1044 | ndlp->nlp_sid = rport->scsi_target_id; | |
1045 | } | |
1046 | rdata = rport->dd_data; | |
1047 | rdata->pnode = ndlp; | |
19a7b4ae JSEC |
1048 | scsi_unblock_requests(phba->host); |
1049 | ||
1050 | return; | |
1051 | } | |
1052 | ||
1053 | static void | |
1054 | lpfc_unregister_remote_port(struct lpfc_hba * phba, | |
1055 | struct lpfc_nodelist * ndlp) | |
1056 | { | |
1057 | struct fc_rport *rport = ndlp->rport; | |
1058 | struct lpfc_rport_data *rdata = rport->dd_data; | |
1059 | ||
1060 | ndlp->rport = NULL; | |
1061 | rdata->pnode = NULL; | |
1062 | scsi_block_requests(phba->host); | |
1063 | fc_remote_port_delete(rport); | |
1064 | scsi_unblock_requests(phba->host); | |
dea3101e JB |
1065 | |
1066 | return; | |
1067 | } | |
1068 | ||
1069 | int | |
1070 | lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list) | |
1071 | { | |
1072 | enum { none, unmapped, mapped } rport_add = none, rport_del = none; | |
1073 | struct lpfc_sli *psli; | |
1074 | ||
1075 | psli = &phba->sli; | |
1076 | /* Sanity check to ensure we are not moving to / from the same list */ | |
1077 | if ((nlp->nlp_flag & NLP_LIST_MASK) == list) { | |
1078 | if (list != NLP_NO_LIST) | |
1079 | return(0); | |
1080 | } | |
1081 | ||
1082 | switch(nlp->nlp_flag & NLP_LIST_MASK) { | |
1083 | case NLP_NO_LIST: /* Not on any list */ | |
1084 | break; | |
1085 | case NLP_UNUSED_LIST: | |
1086 | phba->fc_unused_cnt--; | |
1087 | list_del(&nlp->nlp_listp); | |
1088 | break; | |
1089 | case NLP_PLOGI_LIST: | |
1090 | phba->fc_plogi_cnt--; | |
1091 | list_del(&nlp->nlp_listp); | |
1092 | break; | |
1093 | case NLP_ADISC_LIST: | |
1094 | phba->fc_adisc_cnt--; | |
1095 | list_del(&nlp->nlp_listp); | |
1096 | break; | |
1097 | case NLP_REGLOGIN_LIST: | |
1098 | phba->fc_reglogin_cnt--; | |
1099 | list_del(&nlp->nlp_listp); | |
1100 | break; | |
1101 | case NLP_PRLI_LIST: | |
1102 | phba->fc_prli_cnt--; | |
1103 | list_del(&nlp->nlp_listp); | |
1104 | break; | |
1105 | case NLP_UNMAPPED_LIST: | |
1106 | phba->fc_unmap_cnt--; | |
1107 | list_del(&nlp->nlp_listp); | |
1108 | spin_lock_irq(phba->host->host_lock); | |
1109 | nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; | |
1110 | nlp->nlp_type &= ~NLP_FC_NODE; | |
1111 | spin_unlock_irq(phba->host->host_lock); | |
1112 | phba->nport_event_cnt++; | |
1113 | if (nlp->rport) | |
1114 | rport_del = unmapped; | |
1115 | break; | |
1116 | case NLP_MAPPED_LIST: | |
1117 | phba->fc_map_cnt--; | |
1118 | list_del(&nlp->nlp_listp); | |
1119 | phba->nport_event_cnt++; | |
1120 | if (nlp->rport) | |
1121 | rport_del = mapped; | |
1122 | break; | |
1123 | case NLP_NPR_LIST: | |
1124 | phba->fc_npr_cnt--; | |
1125 | list_del(&nlp->nlp_listp); | |
1126 | /* Stop delay tmo if taking node off NPR list */ | |
1127 | if ((nlp->nlp_flag & NLP_DELAY_TMO) && | |
1128 | (list != NLP_NPR_LIST)) { | |
1129 | spin_lock_irq(phba->host->host_lock); | |
1130 | nlp->nlp_flag &= ~NLP_DELAY_TMO; | |
1131 | spin_unlock_irq(phba->host->host_lock); | |
1132 | del_timer_sync(&nlp->nlp_delayfunc); | |
1133 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) | |
1134 | list_del_init(&nlp->els_retry_evt.evt_listp); | |
1135 | } | |
1136 | break; | |
1137 | } | |
1138 | ||
1139 | spin_lock_irq(phba->host->host_lock); | |
1140 | nlp->nlp_flag &= ~NLP_LIST_MASK; | |
1141 | spin_unlock_irq(phba->host->host_lock); | |
1142 | ||
1143 | /* Add NPort <did> to <num> list */ | |
1144 | lpfc_printf_log(phba, | |
1145 | KERN_INFO, | |
1146 | LOG_NODE, | |
1147 | "%d:0904 Add NPort x%x to %d list Data: x%x\n", | |
1148 | phba->brd_no, | |
1149 | nlp->nlp_DID, list, nlp->nlp_flag); | |
1150 | ||
1151 | switch(list) { | |
1152 | case NLP_NO_LIST: /* No list, just remove it */ | |
1153 | lpfc_nlp_remove(phba, nlp); | |
8cbdc5ff JSEC |
1154 | /* as node removed - stop further transport calls */ |
1155 | rport_del = none; | |
dea3101e JB |
1156 | break; |
1157 | case NLP_UNUSED_LIST: | |
1158 | spin_lock_irq(phba->host->host_lock); | |
1159 | nlp->nlp_flag |= list; | |
1160 | spin_unlock_irq(phba->host->host_lock); | |
1161 | /* Put it at the end of the unused list */ | |
1162 | list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list); | |
1163 | phba->fc_unused_cnt++; | |
1164 | break; | |
1165 | case NLP_PLOGI_LIST: | |
1166 | spin_lock_irq(phba->host->host_lock); | |
1167 | nlp->nlp_flag |= list; | |
1168 | spin_unlock_irq(phba->host->host_lock); | |
1169 | /* Put it at the end of the plogi list */ | |
1170 | list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list); | |
1171 | phba->fc_plogi_cnt++; | |
1172 | break; | |
1173 | case NLP_ADISC_LIST: | |
1174 | spin_lock_irq(phba->host->host_lock); | |
1175 | nlp->nlp_flag |= list; | |
1176 | spin_unlock_irq(phba->host->host_lock); | |
1177 | /* Put it at the end of the adisc list */ | |
1178 | list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list); | |
1179 | phba->fc_adisc_cnt++; | |
1180 | break; | |
1181 | case NLP_REGLOGIN_LIST: | |
1182 | spin_lock_irq(phba->host->host_lock); | |
1183 | nlp->nlp_flag |= list; | |
1184 | spin_unlock_irq(phba->host->host_lock); | |
1185 | /* Put it at the end of the reglogin list */ | |
1186 | list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list); | |
1187 | phba->fc_reglogin_cnt++; | |
1188 | break; | |
1189 | case NLP_PRLI_LIST: | |
1190 | spin_lock_irq(phba->host->host_lock); | |
1191 | nlp->nlp_flag |= list; | |
1192 | spin_unlock_irq(phba->host->host_lock); | |
1193 | /* Put it at the end of the prli list */ | |
1194 | list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list); | |
1195 | phba->fc_prli_cnt++; | |
1196 | break; | |
1197 | case NLP_UNMAPPED_LIST: | |
1198 | rport_add = unmapped; | |
1199 | /* ensure all vestiges of "mapped" significance are gone */ | |
1200 | nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); | |
1201 | spin_lock_irq(phba->host->host_lock); | |
1202 | nlp->nlp_flag |= list; | |
1203 | spin_unlock_irq(phba->host->host_lock); | |
1204 | /* Put it at the end of the unmap list */ | |
1205 | list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list); | |
1206 | phba->fc_unmap_cnt++; | |
1207 | phba->nport_event_cnt++; | |
1208 | /* stop nodev tmo if running */ | |
1209 | if (nlp->nlp_flag & NLP_NODEV_TMO) { | |
1210 | spin_lock_irq(phba->host->host_lock); | |
1211 | nlp->nlp_flag &= ~NLP_NODEV_TMO; | |
1212 | spin_unlock_irq(phba->host->host_lock); | |
1213 | del_timer_sync(&nlp->nlp_tmofunc); | |
1214 | if (!list_empty(&nlp->nodev_timeout_evt.evt_listp)) | |
1215 | list_del_init(&nlp->nodev_timeout_evt. | |
1216 | evt_listp); | |
1217 | ||
1218 | } | |
1219 | nlp->nlp_type |= NLP_FC_NODE; | |
1220 | break; | |
1221 | case NLP_MAPPED_LIST: | |
1222 | rport_add = mapped; | |
1223 | spin_lock_irq(phba->host->host_lock); | |
1224 | nlp->nlp_flag |= list; | |
1225 | spin_unlock_irq(phba->host->host_lock); | |
1226 | /* Put it at the end of the map list */ | |
1227 | list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list); | |
1228 | phba->fc_map_cnt++; | |
1229 | phba->nport_event_cnt++; | |
1230 | /* stop nodev tmo if running */ | |
1231 | if (nlp->nlp_flag & NLP_NODEV_TMO) { | |
1232 | nlp->nlp_flag &= ~NLP_NODEV_TMO; | |
1233 | del_timer_sync(&nlp->nlp_tmofunc); | |
1234 | if (!list_empty(&nlp->nodev_timeout_evt.evt_listp)) | |
1235 | list_del_init(&nlp->nodev_timeout_evt. | |
1236 | evt_listp); | |
1237 | ||
1238 | } | |
1239 | break; | |
1240 | case NLP_NPR_LIST: | |
1241 | spin_lock_irq(phba->host->host_lock); | |
1242 | nlp->nlp_flag |= list; | |
1243 | spin_unlock_irq(phba->host->host_lock); | |
1244 | /* Put it at the end of the npr list */ | |
1245 | list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list); | |
1246 | phba->fc_npr_cnt++; | |
1247 | ||
1248 | /* | |
1249 | * Sanity check for Fabric entity. | |
1250 | * Set nodev_tmo for NPR state, for Fabric use 1 sec. | |
1251 | */ | |
1252 | if (nlp->nlp_type & NLP_FABRIC) { | |
1253 | mod_timer(&nlp->nlp_tmofunc, jiffies + HZ); | |
1254 | } | |
1255 | else { | |
1256 | mod_timer(&nlp->nlp_tmofunc, | |
1257 | jiffies + HZ * phba->cfg_nodev_tmo); | |
1258 | } | |
1259 | spin_lock_irq(phba->host->host_lock); | |
1260 | nlp->nlp_flag |= NLP_NODEV_TMO; | |
1261 | nlp->nlp_flag &= ~NLP_RCV_PLOGI; | |
1262 | spin_unlock_irq(phba->host->host_lock); | |
1263 | break; | |
1264 | case NLP_JUST_DQ: | |
1265 | break; | |
1266 | } | |
1267 | ||
1268 | /* | |
1269 | * We make all the calls into the transport after we have | |
1270 | * moved the node between lists. This so that we don't | |
1271 | * release the lock while in-between lists. | |
1272 | */ | |
1273 | ||
1274 | /* Don't upcall midlayer if we're unloading */ | |
1275 | if (!(phba->fc_flag & FC_UNLOADING)) { | |
1276 | /* | |
1277 | * We revalidate the rport pointer as the "add" function | |
1278 | * may have removed the remote port. | |
1279 | */ | |
1280 | if ((rport_del != none) && nlp->rport) | |
19a7b4ae | 1281 | lpfc_unregister_remote_port(phba, nlp); |
dea3101e JB |
1282 | |
1283 | if (rport_add != none) { | |
1284 | /* | |
1285 | * Tell the fc transport about the port, if we haven't | |
1286 | * already. If we have, and it's a scsi entity, be | |
1287 | * sure to unblock any attached scsi devices | |
1288 | */ | |
1289 | if (!nlp->rport) | |
1290 | lpfc_register_remote_port(phba, nlp); | |
dea3101e JB |
1291 | |
1292 | /* | |
1293 | * if we added to Mapped list, but the remote port | |
1294 | * registration failed or assigned a target id outside | |
1295 | * our presentable range - move the node to the | |
1296 | * Unmapped List | |
1297 | */ | |
1298 | if ((rport_add == mapped) && | |
1299 | ((!nlp->rport) || | |
1300 | (nlp->rport->scsi_target_id == -1) || | |
1301 | (nlp->rport->scsi_target_id >= MAX_FCP_TARGET))) { | |
1302 | nlp->nlp_state = NLP_STE_UNMAPPED_NODE; | |
1303 | spin_lock_irq(phba->host->host_lock); | |
1304 | nlp->nlp_flag |= NLP_TGT_NO_SCSIID; | |
1305 | spin_unlock_irq(phba->host->host_lock); | |
1306 | lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST); | |
1307 | } | |
1308 | } | |
1309 | } | |
1310 | return (0); | |
1311 | } | |
1312 | ||
1313 | /* | |
1314 | * Start / ReStart rescue timer for Discovery / RSCN handling | |
1315 | */ | |
1316 | void | |
1317 | lpfc_set_disctmo(struct lpfc_hba * phba) | |
1318 | { | |
1319 | uint32_t tmo; | |
1320 | ||
1321 | tmo = ((phba->fc_ratov * 2) + 1); | |
1322 | ||
1323 | mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo); | |
1324 | spin_lock_irq(phba->host->host_lock); | |
1325 | phba->fc_flag |= FC_DISC_TMO; | |
1326 | spin_unlock_irq(phba->host->host_lock); | |
1327 | ||
1328 | /* Start Discovery Timer state <hba_state> */ | |
1329 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
1330 | "%d:0247 Start Discovery Timer state x%x " | |
1331 | "Data: x%x x%lx x%x x%x\n", | |
1332 | phba->brd_no, | |
1333 | phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo, | |
1334 | phba->fc_plogi_cnt, phba->fc_adisc_cnt); | |
1335 | ||
1336 | return; | |
1337 | } | |
1338 | ||
1339 | /* | |
1340 | * Cancel rescue timer for Discovery / RSCN handling | |
1341 | */ | |
1342 | int | |
1343 | lpfc_can_disctmo(struct lpfc_hba * phba) | |
1344 | { | |
1345 | /* Turn off discovery timer if its running */ | |
1346 | if (phba->fc_flag & FC_DISC_TMO) { | |
1347 | spin_lock_irq(phba->host->host_lock); | |
1348 | phba->fc_flag &= ~FC_DISC_TMO; | |
1349 | spin_unlock_irq(phba->host->host_lock); | |
1350 | del_timer_sync(&phba->fc_disctmo); | |
1351 | phba->work_hba_events &= ~WORKER_DISC_TMO; | |
1352 | } | |
1353 | ||
1354 | /* Cancel Discovery Timer state <hba_state> */ | |
1355 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
1356 | "%d:0248 Cancel Discovery Timer state x%x " | |
1357 | "Data: x%x x%x x%x\n", | |
1358 | phba->brd_no, phba->hba_state, phba->fc_flag, | |
1359 | phba->fc_plogi_cnt, phba->fc_adisc_cnt); | |
1360 | ||
1361 | return (0); | |
1362 | } | |
1363 | ||
1364 | /* | |
1365 | * Check specified ring for outstanding IOCB on the SLI queue | |
1366 | * Return true if iocb matches the specified nport | |
1367 | */ | |
1368 | int | |
1369 | lpfc_check_sli_ndlp(struct lpfc_hba * phba, | |
1370 | struct lpfc_sli_ring * pring, | |
1371 | struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp) | |
1372 | { | |
1373 | struct lpfc_sli *psli; | |
1374 | IOCB_t *icmd; | |
1375 | ||
1376 | psli = &phba->sli; | |
1377 | icmd = &iocb->iocb; | |
1378 | if (pring->ringno == LPFC_ELS_RING) { | |
1379 | switch (icmd->ulpCommand) { | |
1380 | case CMD_GEN_REQUEST64_CR: | |
1381 | if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) | |
1382 | return (1); | |
1383 | case CMD_ELS_REQUEST64_CR: | |
1384 | case CMD_XMIT_ELS_RSP64_CX: | |
1385 | if (iocb->context1 == (uint8_t *) ndlp) | |
1386 | return (1); | |
1387 | } | |
1388 | } else if (pring->ringno == psli->ip_ring) { | |
1389 | ||
1390 | } else if (pring->ringno == psli->fcp_ring) { | |
1391 | /* Skip match check if waiting to relogin to FCP target */ | |
1392 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && | |
1393 | (ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
1394 | return (0); | |
1395 | } | |
1396 | if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) { | |
1397 | return (1); | |
1398 | } | |
1399 | } else if (pring->ringno == psli->next_ring) { | |
1400 | ||
1401 | } | |
1402 | return (0); | |
1403 | } | |
1404 | ||
1405 | /* | |
1406 | * Free resources / clean up outstanding I/Os | |
1407 | * associated with nlp_rpi in the LPFC_NODELIST entry. | |
1408 | */ | |
1409 | static int | |
1410 | lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) | |
1411 | { | |
1412 | struct lpfc_sli *psli; | |
1413 | struct lpfc_sli_ring *pring; | |
1414 | struct lpfc_iocbq *iocb, *next_iocb; | |
1415 | IOCB_t *icmd; | |
1416 | uint32_t rpi, i; | |
1417 | ||
1418 | /* | |
1419 | * Everything that matches on txcmplq will be returned | |
1420 | * by firmware with a no rpi error. | |
1421 | */ | |
1422 | psli = &phba->sli; | |
1423 | rpi = ndlp->nlp_rpi; | |
1424 | if (rpi) { | |
1425 | /* Now process each ring */ | |
1426 | for (i = 0; i < psli->num_rings; i++) { | |
1427 | pring = &psli->ring[i]; | |
1428 | ||
1429 | spin_lock_irq(phba->host->host_lock); | |
1430 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, | |
1431 | list) { | |
1432 | /* | |
1433 | * Check to see if iocb matches the nport we are | |
1434 | * looking for | |
1435 | */ | |
1436 | if ((lpfc_check_sli_ndlp | |
1437 | (phba, pring, iocb, ndlp))) { | |
1438 | /* It matches, so deque and call compl | |
1439 | with an error */ | |
1440 | list_del(&iocb->list); | |
1441 | pring->txq_cnt--; | |
1442 | if (iocb->iocb_cmpl) { | |
1443 | icmd = &iocb->iocb; | |
1444 | icmd->ulpStatus = | |
1445 | IOSTAT_LOCAL_REJECT; | |
1446 | icmd->un.ulpWord[4] = | |
1447 | IOERR_SLI_ABORTED; | |
1448 | spin_unlock_irq(phba->host-> | |
1449 | host_lock); | |
1450 | (iocb->iocb_cmpl) (phba, | |
1451 | iocb, iocb); | |
1452 | spin_lock_irq(phba->host-> | |
1453 | host_lock); | |
1454 | } else { | |
1455 | list_add_tail(&iocb->list, | |
1456 | &phba->lpfc_iocb_list); | |
1457 | } | |
1458 | } | |
1459 | } | |
1460 | spin_unlock_irq(phba->host->host_lock); | |
1461 | ||
1462 | } | |
1463 | } | |
1464 | return (0); | |
1465 | } | |
1466 | ||
1467 | /* | |
1468 | * Free rpi associated with LPFC_NODELIST entry. | |
1469 | * This routine is called from lpfc_freenode(), when we are removing | |
1470 | * a LPFC_NODELIST entry. It is also called if the driver initiates a | |
1471 | * LOGO that completes successfully, and we are waiting to PLOGI back | |
1472 | * to the remote NPort. In addition, it is called after we receive | |
1473 | * and unsolicated ELS cmd, send back a rsp, the rsp completes and | |
1474 | * we are waiting to PLOGI back to the remote NPort. | |
1475 | */ | |
1476 | int | |
1477 | lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) | |
1478 | { | |
1479 | LPFC_MBOXQ_t *mbox; | |
1480 | int rc; | |
1481 | ||
1482 | if (ndlp->nlp_rpi) { | |
1483 | if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { | |
1484 | lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox); | |
1485 | mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl; | |
1486 | rc = lpfc_sli_issue_mbox | |
1487 | (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)); | |
1488 | if (rc == MBX_NOT_FINISHED) | |
1489 | mempool_free( mbox, phba->mbox_mem_pool); | |
1490 | } | |
1491 | lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi); | |
1492 | lpfc_no_rpi(phba, ndlp); | |
1493 | ndlp->nlp_rpi = 0; | |
1494 | return 1; | |
1495 | } | |
1496 | return 0; | |
1497 | } | |
1498 | ||
1499 | /* | |
1500 | * Free resources associated with LPFC_NODELIST entry | |
1501 | * so it can be freed. | |
1502 | */ | |
1503 | static int | |
1504 | lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) | |
1505 | { | |
1506 | LPFC_MBOXQ_t *mb; | |
1507 | LPFC_MBOXQ_t *nextmb; | |
1508 | struct lpfc_dmabuf *mp; | |
dea3101e JB |
1509 | |
1510 | /* Cleanup node for NPort <nlp_DID> */ | |
1511 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, | |
1512 | "%d:0900 Cleanup node for NPort x%x " | |
1513 | "Data: x%x x%x x%x\n", | |
1514 | phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag, | |
1515 | ndlp->nlp_state, ndlp->nlp_rpi); | |
1516 | ||
1517 | lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ); | |
1518 | ||
1519 | /* | |
1520 | * if unloading the driver - just leave the remote port in place. | |
1521 | * The driver unload will force the attached devices to detach | |
1522 | * and flush cache's w/o generating flush errors. | |
1523 | */ | |
1524 | if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) { | |
19a7b4ae | 1525 | lpfc_unregister_remote_port(phba, ndlp); |
dea3101e JB |
1526 | ndlp->nlp_sid = NLP_NO_SID; |
1527 | } | |
1528 | ||
1529 | /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ | |
1530 | if ((mb = phba->sli.mbox_active)) { | |
1531 | if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) && | |
1532 | (ndlp == (struct lpfc_nodelist *) mb->context2)) { | |
1533 | mb->context2 = NULL; | |
1534 | mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
1535 | } | |
1536 | } | |
1537 | list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { | |
1538 | if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) && | |
1539 | (ndlp == (struct lpfc_nodelist *) mb->context2)) { | |
1540 | mp = (struct lpfc_dmabuf *) (mb->context1); | |
1541 | if (mp) { | |
1542 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1543 | kfree(mp); | |
1544 | } | |
1545 | list_del(&mb->list); | |
1546 | mempool_free(mb, phba->mbox_mem_pool); | |
1547 | } | |
1548 | } | |
1549 | ||
1550 | lpfc_els_abort(phba,ndlp,0); | |
1551 | spin_lock_irq(phba->host->host_lock); | |
1552 | ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO); | |
1553 | spin_unlock_irq(phba->host->host_lock); | |
1554 | del_timer_sync(&ndlp->nlp_tmofunc); | |
1555 | ||
1556 | del_timer_sync(&ndlp->nlp_delayfunc); | |
1557 | ||
1558 | if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp)) | |
1559 | list_del_init(&ndlp->nodev_timeout_evt.evt_listp); | |
1560 | if (!list_empty(&ndlp->els_retry_evt.evt_listp)) | |
1561 | list_del_init(&ndlp->els_retry_evt.evt_listp); | |
1562 | ||
1563 | lpfc_unreg_rpi(phba, ndlp); | |
1564 | ||
1565 | return (0); | |
1566 | } | |
1567 | ||
1568 | /* | |
1569 | * Check to see if we can free the nlp back to the freelist. | |
1570 | * If we are in the middle of using the nlp in the discovery state | |
1571 | * machine, defer the free till we reach the end of the state machine. | |
1572 | */ | |
1573 | int | |
1574 | lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) | |
1575 | { | |
1576 | if (ndlp->nlp_flag & NLP_NODEV_TMO) { | |
1577 | spin_lock_irq(phba->host->host_lock); | |
1578 | ndlp->nlp_flag &= ~NLP_NODEV_TMO; | |
1579 | spin_unlock_irq(phba->host->host_lock); | |
1580 | del_timer_sync(&ndlp->nlp_tmofunc); | |
1581 | if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp)) | |
1582 | list_del_init(&ndlp->nodev_timeout_evt.evt_listp); | |
1583 | ||
1584 | } | |
1585 | ||
1586 | ||
1587 | if (ndlp->nlp_flag & NLP_DELAY_TMO) { | |
1588 | spin_lock_irq(phba->host->host_lock); | |
1589 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
1590 | spin_unlock_irq(phba->host->host_lock); | |
1591 | del_timer_sync(&ndlp->nlp_delayfunc); | |
1592 | if (!list_empty(&ndlp->els_retry_evt.evt_listp)) | |
1593 | list_del_init(&ndlp->els_retry_evt.evt_listp); | |
1594 | } | |
1595 | ||
1596 | if (ndlp->nlp_disc_refcnt) { | |
1597 | spin_lock_irq(phba->host->host_lock); | |
1598 | ndlp->nlp_flag |= NLP_DELAY_REMOVE; | |
1599 | spin_unlock_irq(phba->host->host_lock); | |
1600 | } | |
1601 | else { | |
1602 | lpfc_freenode(phba, ndlp); | |
1603 | mempool_free( ndlp, phba->nlp_mem_pool); | |
1604 | } | |
1605 | return(0); | |
1606 | } | |
1607 | ||
1608 | static int | |
1609 | lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did) | |
1610 | { | |
1611 | D_ID mydid; | |
1612 | D_ID ndlpdid; | |
1613 | D_ID matchdid; | |
1614 | ||
1615 | if (did == Bcast_DID) | |
1616 | return (0); | |
1617 | ||
1618 | if (ndlp->nlp_DID == 0) { | |
1619 | return (0); | |
1620 | } | |
1621 | ||
1622 | /* First check for Direct match */ | |
1623 | if (ndlp->nlp_DID == did) | |
1624 | return (1); | |
1625 | ||
1626 | /* Next check for area/domain identically equals 0 match */ | |
1627 | mydid.un.word = phba->fc_myDID; | |
1628 | if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { | |
1629 | return (0); | |
1630 | } | |
1631 | ||
1632 | matchdid.un.word = did; | |
1633 | ndlpdid.un.word = ndlp->nlp_DID; | |
1634 | if (matchdid.un.b.id == ndlpdid.un.b.id) { | |
1635 | if ((mydid.un.b.domain == matchdid.un.b.domain) && | |
1636 | (mydid.un.b.area == matchdid.un.b.area)) { | |
1637 | if ((ndlpdid.un.b.domain == 0) && | |
1638 | (ndlpdid.un.b.area == 0)) { | |
1639 | if (ndlpdid.un.b.id) | |
1640 | return (1); | |
1641 | } | |
1642 | return (0); | |
1643 | } | |
1644 | ||
1645 | matchdid.un.word = ndlp->nlp_DID; | |
1646 | if ((mydid.un.b.domain == ndlpdid.un.b.domain) && | |
1647 | (mydid.un.b.area == ndlpdid.un.b.area)) { | |
1648 | if ((matchdid.un.b.domain == 0) && | |
1649 | (matchdid.un.b.area == 0)) { | |
1650 | if (matchdid.un.b.id) | |
1651 | return (1); | |
1652 | } | |
1653 | } | |
1654 | } | |
1655 | return (0); | |
1656 | } | |
1657 | ||
1658 | /* Search for a nodelist entry on a specific list */ | |
1659 | struct lpfc_nodelist * | |
1660 | lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did) | |
1661 | { | |
1662 | struct lpfc_nodelist *ndlp, *next_ndlp; | |
1663 | uint32_t data1; | |
1664 | ||
1665 | if (order & NLP_SEARCH_UNMAPPED) { | |
1666 | list_for_each_entry_safe(ndlp, next_ndlp, | |
1667 | &phba->fc_nlpunmap_list, nlp_listp) { | |
1668 | if (lpfc_matchdid(phba, ndlp, did)) { | |
1669 | data1 = (((uint32_t) ndlp->nlp_state << 24) | | |
1670 | ((uint32_t) ndlp->nlp_xri << 16) | | |
1671 | ((uint32_t) ndlp->nlp_type << 8) | | |
1672 | ((uint32_t) ndlp->nlp_rpi & 0xff)); | |
1673 | /* FIND node DID unmapped */ | |
1674 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, | |
1675 | "%d:0929 FIND node DID unmapped" | |
1676 | " Data: x%p x%x x%x x%x\n", | |
1677 | phba->brd_no, | |
1678 | ndlp, ndlp->nlp_DID, | |
1679 | ndlp->nlp_flag, data1); | |
1680 | return (ndlp); | |
1681 | } | |
1682 | } | |
1683 | } | |
1684 | ||
1685 | if (order & NLP_SEARCH_MAPPED) { | |
1686 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list, | |
1687 | nlp_listp) { | |
1688 | if (lpfc_matchdid(phba, ndlp, did)) { | |
1689 | ||
1690 | data1 = (((uint32_t) ndlp->nlp_state << 24) | | |
1691 | ((uint32_t) ndlp->nlp_xri << 16) | | |
1692 | ((uint32_t) ndlp->nlp_type << 8) | | |
1693 | ((uint32_t) ndlp->nlp_rpi & 0xff)); | |
1694 | /* FIND node DID mapped */ | |
1695 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, | |
1696 | "%d:0930 FIND node DID mapped " | |
1697 | "Data: x%p x%x x%x x%x\n", | |
1698 | phba->brd_no, | |
1699 | ndlp, ndlp->nlp_DID, | |
1700 | ndlp->nlp_flag, data1); | |
1701 | return (ndlp); | |
1702 | } | |
1703 | } | |
1704 | } | |
1705 | ||
1706 | if (order & NLP_SEARCH_PLOGI) { | |
1707 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list, | |
1708 | nlp_listp) { | |
1709 | if (lpfc_matchdid(phba, ndlp, did)) { | |
1710 | ||
1711 | data1 = (((uint32_t) ndlp->nlp_state << 24) | | |
1712 | ((uint32_t) ndlp->nlp_xri << 16) | | |
1713 | ((uint32_t) ndlp->nlp_type << 8) | | |
1714 | ((uint32_t) ndlp->nlp_rpi & 0xff)); | |
1715 | /* LOG change to PLOGI */ | |
1716 | /* FIND node DID plogi */ | |
1717 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, | |
1718 | "%d:0908 FIND node DID plogi " | |
1719 | "Data: x%p x%x x%x x%x\n", | |
1720 | phba->brd_no, | |
1721 | ndlp, ndlp->nlp_DID, | |
1722 | ndlp->nlp_flag, data1); | |
1723 | return (ndlp); | |
1724 | } | |
1725 | } | |
1726 | } | |
1727 | ||
1728 | if (order & NLP_SEARCH_ADISC) { | |
1729 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list, | |
1730 | nlp_listp) { | |
1731 | if (lpfc_matchdid(phba, ndlp, did)) { | |
1732 | ||
1733 | data1 = (((uint32_t) ndlp->nlp_state << 24) | | |
1734 | ((uint32_t) ndlp->nlp_xri << 16) | | |
1735 | ((uint32_t) ndlp->nlp_type << 8) | | |
1736 | ((uint32_t) ndlp->nlp_rpi & 0xff)); | |
1737 | /* LOG change to ADISC */ | |
1738 | /* FIND node DID adisc */ | |
1739 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, | |
1740 | "%d:0931 FIND node DID adisc " | |
1741 | "Data: x%p x%x x%x x%x\n", | |
1742 | phba->brd_no, | |
1743 | ndlp, ndlp->nlp_DID, | |
1744 | ndlp->nlp_flag, data1); | |
1745 | return (ndlp); | |
1746 | } | |
1747 | } | |
1748 | } | |
1749 | ||
1750 | if (order & NLP_SEARCH_REGLOGIN) { | |
1751 | list_for_each_entry_safe(ndlp, next_ndlp, | |
1752 | &phba->fc_reglogin_list, nlp_listp) { | |
1753 | if (lpfc_matchdid(phba, ndlp, did)) { | |
1754 | ||
1755 | data1 = (((uint32_t) ndlp->nlp_state << 24) | | |
1756 | ((uint32_t) ndlp->nlp_xri << 16) | | |
1757 | ((uint32_t) ndlp->nlp_type << 8) | | |
1758 | ((uint32_t) ndlp->nlp_rpi & 0xff)); | |
1759 | /* LOG change to REGLOGIN */ | |
1760 | /* FIND node DID reglogin */ | |
1761 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, | |
1762 | "%d:0931 FIND node DID reglogin" | |
1763 | " Data: x%p x%x x%x x%x\n", | |
1764 | phba->brd_no, | |
1765 | ndlp, ndlp->nlp_DID, | |
1766 | ndlp->nlp_flag, data1); | |
1767 | return (ndlp); | |
1768 | } | |
1769 | } | |
1770 | } | |
1771 | ||
1772 | if (order & NLP_SEARCH_PRLI) { | |
1773 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list, | |
1774 | nlp_listp) { | |
1775 | if (lpfc_matchdid(phba, ndlp, did)) { | |
1776 | ||
1777 | data1 = (((uint32_t) ndlp->nlp_state << 24) | | |
1778 | ((uint32_t) ndlp->nlp_xri << 16) | | |
1779 | ((uint32_t) ndlp->nlp_type << 8) | | |
1780 | ((uint32_t) ndlp->nlp_rpi & 0xff)); | |
1781 | /* LOG change to PRLI */ | |
1782 | /* FIND node DID prli */ | |
1783 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, | |
1784 | "%d:0931 FIND node DID prli " | |
1785 | "Data: x%p x%x x%x x%x\n", | |
1786 | phba->brd_no, | |
1787 | ndlp, ndlp->nlp_DID, | |
1788 | ndlp->nlp_flag, data1); | |
1789 | return (ndlp); | |
1790 | } | |
1791 | } | |
1792 | } | |
1793 | ||
1794 | if (order & NLP_SEARCH_NPR) { | |
1795 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list, | |
1796 | nlp_listp) { | |
1797 | if (lpfc_matchdid(phba, ndlp, did)) { | |
1798 | ||
1799 | data1 = (((uint32_t) ndlp->nlp_state << 24) | | |
1800 | ((uint32_t) ndlp->nlp_xri << 16) | | |
1801 | ((uint32_t) ndlp->nlp_type << 8) | | |
1802 | ((uint32_t) ndlp->nlp_rpi & 0xff)); | |
1803 | /* LOG change to NPR */ | |
1804 | /* FIND node DID npr */ | |
1805 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, | |
1806 | "%d:0931 FIND node DID npr " | |
1807 | "Data: x%p x%x x%x x%x\n", | |
1808 | phba->brd_no, | |
1809 | ndlp, ndlp->nlp_DID, | |
1810 | ndlp->nlp_flag, data1); | |
1811 | return (ndlp); | |
1812 | } | |
1813 | } | |
1814 | } | |
1815 | ||
1816 | if (order & NLP_SEARCH_UNUSED) { | |
1817 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list, | |
1818 | nlp_listp) { | |
1819 | if (lpfc_matchdid(phba, ndlp, did)) { | |
1820 | ||
1821 | data1 = (((uint32_t) ndlp->nlp_state << 24) | | |
1822 | ((uint32_t) ndlp->nlp_xri << 16) | | |
1823 | ((uint32_t) ndlp->nlp_type << 8) | | |
1824 | ((uint32_t) ndlp->nlp_rpi & 0xff)); | |
1825 | /* LOG change to UNUSED */ | |
1826 | /* FIND node DID unused */ | |
1827 | lpfc_printf_log(phba, KERN_INFO, LOG_NODE, | |
1828 | "%d:0931 FIND node DID unused " | |
1829 | "Data: x%p x%x x%x x%x\n", | |
1830 | phba->brd_no, | |
1831 | ndlp, ndlp->nlp_DID, | |
1832 | ndlp->nlp_flag, data1); | |
1833 | return (ndlp); | |
1834 | } | |
1835 | } | |
1836 | } | |
1837 | ||
1838 | /* FIND node did <did> NOT FOUND */ | |
1839 | lpfc_printf_log(phba, | |
1840 | KERN_INFO, | |
1841 | LOG_NODE, | |
1842 | "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n", | |
1843 | phba->brd_no, did, order); | |
1844 | ||
1845 | /* no match found */ | |
1846 | return NULL; | |
1847 | } | |
1848 | ||
1849 | struct lpfc_nodelist * | |
1850 | lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did) | |
1851 | { | |
1852 | struct lpfc_nodelist *ndlp; | |
1853 | uint32_t flg; | |
1854 | ||
1855 | if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did)) == 0) { | |
1856 | if ((phba->hba_state == LPFC_HBA_READY) && | |
1857 | ((lpfc_rscn_payload_check(phba, did) == 0))) | |
1858 | return NULL; | |
1859 | ndlp = (struct lpfc_nodelist *) | |
1860 | mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
1861 | if (!ndlp) | |
1862 | return NULL; | |
1863 | lpfc_nlp_init(phba, ndlp, did); | |
1864 | ndlp->nlp_state = NLP_STE_NPR_NODE; | |
1865 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); | |
1866 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1867 | return ndlp; | |
1868 | } | |
1869 | if ((phba->hba_state == LPFC_HBA_READY) && | |
1870 | (phba->fc_flag & FC_RSCN_MODE)) { | |
1871 | if (lpfc_rscn_payload_check(phba, did)) { | |
1872 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1873 | } | |
1874 | else { | |
1875 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1876 | ndlp = NULL; | |
1877 | } | |
1878 | } | |
1879 | else { | |
1880 | flg = ndlp->nlp_flag & NLP_LIST_MASK; | |
1881 | if ((flg == NLP_ADISC_LIST) || | |
1882 | (flg == NLP_PLOGI_LIST)) { | |
1883 | return NULL; | |
1884 | } | |
1885 | ndlp->nlp_state = NLP_STE_NPR_NODE; | |
1886 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); | |
1887 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1888 | } | |
1889 | return ndlp; | |
1890 | } | |
1891 | ||
1892 | /* Build a list of nodes to discover based on the loopmap */ | |
1893 | void | |
1894 | lpfc_disc_list_loopmap(struct lpfc_hba * phba) | |
1895 | { | |
1896 | int j; | |
1897 | uint32_t alpa, index; | |
1898 | ||
1899 | if (phba->hba_state <= LPFC_LINK_DOWN) { | |
1900 | return; | |
1901 | } | |
1902 | if (phba->fc_topology != TOPOLOGY_LOOP) { | |
1903 | return; | |
1904 | } | |
1905 | ||
1906 | /* Check for loop map present or not */ | |
1907 | if (phba->alpa_map[0]) { | |
1908 | for (j = 1; j <= phba->alpa_map[0]; j++) { | |
1909 | alpa = phba->alpa_map[j]; | |
1910 | ||
1911 | if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) { | |
1912 | continue; | |
1913 | } | |
1914 | lpfc_setup_disc_node(phba, alpa); | |
1915 | } | |
1916 | } else { | |
1917 | /* No alpamap, so try all alpa's */ | |
1918 | for (j = 0; j < FC_MAXLOOP; j++) { | |
1919 | /* If cfg_scan_down is set, start from highest | |
1920 | * ALPA (0xef) to lowest (0x1). | |
1921 | */ | |
1922 | if (phba->cfg_scan_down) | |
1923 | index = j; | |
1924 | else | |
1925 | index = FC_MAXLOOP - j - 1; | |
1926 | alpa = lpfcAlpaArray[index]; | |
1927 | if ((phba->fc_myDID & 0xff) == alpa) { | |
1928 | continue; | |
1929 | } | |
1930 | ||
1931 | lpfc_setup_disc_node(phba, alpa); | |
1932 | } | |
1933 | } | |
1934 | return; | |
1935 | } | |
1936 | ||
1937 | /* Start Link up / RSCN discovery on NPR list */ | |
1938 | void | |
1939 | lpfc_disc_start(struct lpfc_hba * phba) | |
1940 | { | |
1941 | struct lpfc_sli *psli; | |
1942 | LPFC_MBOXQ_t *mbox; | |
1943 | struct lpfc_nodelist *ndlp, *next_ndlp; | |
1944 | uint32_t did_changed, num_sent; | |
1945 | uint32_t clear_la_pending; | |
1946 | int rc; | |
1947 | ||
1948 | psli = &phba->sli; | |
1949 | ||
1950 | if (phba->hba_state <= LPFC_LINK_DOWN) { | |
1951 | return; | |
1952 | } | |
1953 | if (phba->hba_state == LPFC_CLEAR_LA) | |
1954 | clear_la_pending = 1; | |
1955 | else | |
1956 | clear_la_pending = 0; | |
1957 | ||
1958 | if (phba->hba_state < LPFC_HBA_READY) { | |
1959 | phba->hba_state = LPFC_DISC_AUTH; | |
1960 | } | |
1961 | lpfc_set_disctmo(phba); | |
1962 | ||
1963 | if (phba->fc_prevDID == phba->fc_myDID) { | |
1964 | did_changed = 0; | |
1965 | } else { | |
1966 | did_changed = 1; | |
1967 | } | |
1968 | phba->fc_prevDID = phba->fc_myDID; | |
1969 | phba->num_disc_nodes = 0; | |
1970 | ||
1971 | /* Start Discovery state <hba_state> */ | |
1972 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
1973 | "%d:0202 Start Discovery hba state x%x " | |
1974 | "Data: x%x x%x x%x\n", | |
1975 | phba->brd_no, phba->hba_state, phba->fc_flag, | |
1976 | phba->fc_plogi_cnt, phba->fc_adisc_cnt); | |
1977 | ||
1978 | /* If our did changed, we MUST do PLOGI */ | |
1979 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list, | |
1980 | nlp_listp) { | |
1981 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { | |
1982 | if (did_changed) { | |
1983 | spin_lock_irq(phba->host->host_lock); | |
1984 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; | |
1985 | spin_unlock_irq(phba->host->host_lock); | |
1986 | } | |
1987 | } | |
1988 | } | |
1989 | ||
1990 | /* First do ADISCs - if any */ | |
1991 | num_sent = lpfc_els_disc_adisc(phba); | |
1992 | ||
1993 | if (num_sent) | |
1994 | return; | |
1995 | ||
1996 | if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) { | |
1997 | /* If we get here, there is nothing to ADISC */ | |
1998 | if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { | |
1999 | phba->hba_state = LPFC_CLEAR_LA; | |
2000 | lpfc_clear_la(phba, mbox); | |
2001 | mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; | |
2002 | rc = lpfc_sli_issue_mbox(phba, mbox, | |
2003 | (MBX_NOWAIT | MBX_STOP_IOCB)); | |
2004 | if (rc == MBX_NOT_FINISHED) { | |
2005 | mempool_free( mbox, phba->mbox_mem_pool); | |
2006 | lpfc_disc_flush_list(phba); | |
2007 | psli->ring[(psli->ip_ring)].flag &= | |
2008 | ~LPFC_STOP_IOCB_EVENT; | |
2009 | psli->ring[(psli->fcp_ring)].flag &= | |
2010 | ~LPFC_STOP_IOCB_EVENT; | |
2011 | psli->ring[(psli->next_ring)].flag &= | |
2012 | ~LPFC_STOP_IOCB_EVENT; | |
2013 | phba->hba_state = LPFC_HBA_READY; | |
2014 | } | |
2015 | } | |
2016 | } else { | |
2017 | /* Next do PLOGIs - if any */ | |
2018 | num_sent = lpfc_els_disc_plogi(phba); | |
2019 | ||
2020 | if (num_sent) | |
2021 | return; | |
2022 | ||
2023 | if (phba->fc_flag & FC_RSCN_MODE) { | |
2024 | /* Check to see if more RSCNs came in while we | |
2025 | * were processing this one. | |
2026 | */ | |
2027 | if ((phba->fc_rscn_id_cnt == 0) && | |
2028 | (!(phba->fc_flag & FC_RSCN_DISCOVERY))) { | |
2029 | spin_lock_irq(phba->host->host_lock); | |
2030 | phba->fc_flag &= ~FC_RSCN_MODE; | |
2031 | spin_unlock_irq(phba->host->host_lock); | |
2032 | } | |
2033 | else | |
2034 | lpfc_els_handle_rscn(phba); | |
2035 | } | |
2036 | } | |
2037 | return; | |
2038 | } | |
2039 | ||
2040 | /* | |
2041 | * Ignore completion for all IOCBs on tx and txcmpl queue for ELS | |
2042 | * ring the match the sppecified nodelist. | |
2043 | */ | |
2044 | static void | |
2045 | lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) | |
2046 | { | |
2047 | struct lpfc_sli *psli; | |
2048 | IOCB_t *icmd; | |
2049 | struct lpfc_iocbq *iocb, *next_iocb; | |
2050 | struct lpfc_sli_ring *pring; | |
2051 | struct lpfc_dmabuf *mp; | |
2052 | ||
2053 | psli = &phba->sli; | |
2054 | pring = &psli->ring[LPFC_ELS_RING]; | |
2055 | ||
2056 | /* Error matching iocb on txq or txcmplq | |
2057 | * First check the txq. | |
2058 | */ | |
2059 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { | |
2060 | if (iocb->context1 != ndlp) { | |
2061 | continue; | |
2062 | } | |
2063 | icmd = &iocb->iocb; | |
2064 | if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || | |
2065 | (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { | |
2066 | ||
2067 | list_del(&iocb->list); | |
2068 | pring->txq_cnt--; | |
2069 | lpfc_els_free_iocb(phba, iocb); | |
2070 | } | |
2071 | } | |
2072 | ||
2073 | /* Next check the txcmplq */ | |
2074 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { | |
2075 | if (iocb->context1 != ndlp) { | |
2076 | continue; | |
2077 | } | |
2078 | icmd = &iocb->iocb; | |
2079 | if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) || | |
2080 | (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { | |
2081 | ||
2082 | iocb->iocb_cmpl = NULL; | |
2083 | /* context2 = cmd, context2->next = rsp, context3 = | |
2084 | bpl */ | |
2085 | if (iocb->context2) { | |
2086 | /* Free the response IOCB before handling the | |
2087 | command. */ | |
2088 | ||
2089 | mp = (struct lpfc_dmabuf *) (iocb->context2); | |
2090 | mp = list_get_first(&mp->list, | |
2091 | struct lpfc_dmabuf, | |
2092 | list); | |
2093 | if (mp) { | |
2094 | /* Delay before releasing rsp buffer to | |
2095 | * give UNREG mbox a chance to take | |
2096 | * effect. | |
2097 | */ | |
2098 | list_add(&mp->list, | |
2099 | &phba->freebufList); | |
2100 | } | |
2101 | lpfc_mbuf_free(phba, | |
2102 | ((struct lpfc_dmabuf *) | |
2103 | iocb->context2)->virt, | |
2104 | ((struct lpfc_dmabuf *) | |
2105 | iocb->context2)->phys); | |
2106 | kfree(iocb->context2); | |
2107 | } | |
2108 | ||
2109 | if (iocb->context3) { | |
2110 | lpfc_mbuf_free(phba, | |
2111 | ((struct lpfc_dmabuf *) | |
2112 | iocb->context3)->virt, | |
2113 | ((struct lpfc_dmabuf *) | |
2114 | iocb->context3)->phys); | |
2115 | kfree(iocb->context3); | |
2116 | } | |
2117 | } | |
2118 | } | |
2119 | ||
2120 | return; | |
2121 | } | |
2122 | ||
2123 | void | |
2124 | lpfc_disc_flush_list(struct lpfc_hba * phba) | |
2125 | { | |
2126 | struct lpfc_nodelist *ndlp, *next_ndlp; | |
2127 | ||
2128 | if (phba->fc_plogi_cnt) { | |
2129 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list, | |
2130 | nlp_listp) { | |
2131 | lpfc_free_tx(phba, ndlp); | |
2132 | lpfc_nlp_remove(phba, ndlp); | |
2133 | } | |
2134 | } | |
2135 | if (phba->fc_adisc_cnt) { | |
2136 | list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list, | |
2137 | nlp_listp) { | |
2138 | lpfc_free_tx(phba, ndlp); | |
2139 | lpfc_nlp_remove(phba, ndlp); | |
2140 | } | |
2141 | } | |
2142 | return; | |
2143 | } | |
2144 | ||
2145 | /*****************************************************************************/ | |
2146 | /* | |
2147 | * NAME: lpfc_disc_timeout | |
2148 | * | |
2149 | * FUNCTION: Fibre Channel driver discovery timeout routine. | |
2150 | * | |
2151 | * EXECUTION ENVIRONMENT: interrupt only | |
2152 | * | |
2153 | * CALLED FROM: | |
2154 | * Timer function | |
2155 | * | |
2156 | * RETURNS: | |
2157 | * none | |
2158 | */ | |
2159 | /*****************************************************************************/ | |
2160 | void | |
2161 | lpfc_disc_timeout(unsigned long ptr) | |
2162 | { | |
2163 | struct lpfc_hba *phba = (struct lpfc_hba *)ptr; | |
2164 | unsigned long flags = 0; | |
2165 | ||
2166 | if (unlikely(!phba)) | |
2167 | return; | |
2168 | ||
2169 | spin_lock_irqsave(phba->host->host_lock, flags); | |
2170 | if (!(phba->work_hba_events & WORKER_DISC_TMO)) { | |
2171 | phba->work_hba_events |= WORKER_DISC_TMO; | |
2172 | if (phba->work_wait) | |
2173 | wake_up(phba->work_wait); | |
2174 | } | |
2175 | spin_unlock_irqrestore(phba->host->host_lock, flags); | |
2176 | return; | |
2177 | } | |
2178 | ||
2179 | static void | |
2180 | lpfc_disc_timeout_handler(struct lpfc_hba *phba) | |
2181 | { | |
2182 | struct lpfc_sli *psli; | |
2183 | struct lpfc_nodelist *ndlp; | |
2184 | LPFC_MBOXQ_t *clearlambox, *initlinkmbox; | |
2185 | int rc, clrlaerr = 0; | |
2186 | ||
2187 | if (unlikely(!phba)) | |
2188 | return; | |
2189 | ||
2190 | if (!(phba->fc_flag & FC_DISC_TMO)) | |
2191 | return; | |
2192 | ||
2193 | psli = &phba->sli; | |
2194 | ||
2195 | spin_lock_irq(phba->host->host_lock); | |
2196 | phba->fc_flag &= ~FC_DISC_TMO; | |
2197 | spin_unlock_irq(phba->host->host_lock); | |
2198 | ||
2199 | switch (phba->hba_state) { | |
2200 | ||
2201 | case LPFC_LOCAL_CFG_LINK: | |
2202 | /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */ | |
2203 | /* FAN timeout */ | |
2204 | lpfc_printf_log(phba, | |
2205 | KERN_WARNING, | |
2206 | LOG_DISCOVERY, | |
2207 | "%d:0221 FAN timeout\n", | |
2208 | phba->brd_no); | |
2209 | ||
2210 | /* Forget about FAN, Start discovery by sending a FLOGI | |
2211 | * hba_state is identically LPFC_FLOGI while waiting for FLOGI | |
2212 | * cmpl | |
2213 | */ | |
2214 | phba->hba_state = LPFC_FLOGI; | |
2215 | lpfc_set_disctmo(phba); | |
2216 | lpfc_initial_flogi(phba); | |
2217 | break; | |
2218 | ||
2219 | case LPFC_FLOGI: | |
2220 | /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ | |
2221 | /* Initial FLOGI timeout */ | |
2222 | lpfc_printf_log(phba, | |
2223 | KERN_ERR, | |
2224 | LOG_DISCOVERY, | |
2225 | "%d:0222 Initial FLOGI timeout\n", | |
2226 | phba->brd_no); | |
2227 | ||
2228 | /* Assume no Fabric and go on with discovery. | |
2229 | * Check for outstanding ELS FLOGI to abort. | |
2230 | */ | |
2231 | ||
2232 | /* FLOGI failed, so just use loop map to make discovery list */ | |
2233 | lpfc_disc_list_loopmap(phba); | |
2234 | ||
2235 | /* Start discovery */ | |
2236 | lpfc_disc_start(phba); | |
2237 | break; | |
2238 | ||
2239 | case LPFC_FABRIC_CFG_LINK: | |
2240 | /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for | |
2241 | NameServer login */ | |
2242 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, | |
2243 | "%d:0223 Timeout while waiting for NameServer " | |
2244 | "login\n", phba->brd_no); | |
2245 | ||
2246 | /* Next look for NameServer ndlp */ | |
2247 | ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID); | |
2248 | if (ndlp) | |
2249 | lpfc_nlp_remove(phba, ndlp); | |
2250 | /* Start discovery */ | |
2251 | lpfc_disc_start(phba); | |
2252 | break; | |
2253 | ||
2254 | case LPFC_NS_QRY: | |
2255 | /* Check for wait for NameServer Rsp timeout */ | |
2256 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, | |
2257 | "%d:0224 NameServer Query timeout " | |
2258 | "Data: x%x x%x\n", | |
2259 | phba->brd_no, | |
2260 | phba->fc_ns_retry, LPFC_MAX_NS_RETRY); | |
2261 | ||
2262 | ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED, | |
2263 | NameServer_DID); | |
2264 | if (ndlp) { | |
2265 | if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) { | |
2266 | /* Try it one more time */ | |
2267 | rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT); | |
2268 | if (rc == 0) | |
2269 | break; | |
2270 | } | |
2271 | phba->fc_ns_retry = 0; | |
2272 | } | |
2273 | ||
2274 | /* Nothing to authenticate, so CLEAR_LA right now */ | |
2275 | clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2276 | if (!clearlambox) { | |
2277 | clrlaerr = 1; | |
2278 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, | |
2279 | "%d:0226 Device Discovery " | |
2280 | "completion error\n", | |
2281 | phba->brd_no); | |
2282 | phba->hba_state = LPFC_HBA_ERROR; | |
2283 | break; | |
2284 | } | |
2285 | ||
2286 | phba->hba_state = LPFC_CLEAR_LA; | |
2287 | lpfc_clear_la(phba, clearlambox); | |
2288 | clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; | |
2289 | rc = lpfc_sli_issue_mbox(phba, clearlambox, | |
2290 | (MBX_NOWAIT | MBX_STOP_IOCB)); | |
2291 | if (rc == MBX_NOT_FINISHED) { | |
2292 | mempool_free(clearlambox, phba->mbox_mem_pool); | |
2293 | clrlaerr = 1; | |
2294 | break; | |
2295 | } | |
2296 | ||
2297 | /* Setup and issue mailbox INITIALIZE LINK command */ | |
2298 | initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2299 | if (!initlinkmbox) { | |
2300 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, | |
2301 | "%d:0226 Device Discovery " | |
2302 | "completion error\n", | |
2303 | phba->brd_no); | |
2304 | phba->hba_state = LPFC_HBA_ERROR; | |
2305 | break; | |
2306 | } | |
2307 | ||
2308 | lpfc_linkdown(phba); | |
2309 | lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, | |
2310 | phba->cfg_link_speed); | |
2311 | initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0; | |
2312 | rc = lpfc_sli_issue_mbox(phba, initlinkmbox, | |
2313 | (MBX_NOWAIT | MBX_STOP_IOCB)); | |
2314 | if (rc == MBX_NOT_FINISHED) | |
2315 | mempool_free(initlinkmbox, phba->mbox_mem_pool); | |
2316 | ||
2317 | break; | |
2318 | ||
2319 | case LPFC_DISC_AUTH: | |
2320 | /* Node Authentication timeout */ | |
2321 | lpfc_printf_log(phba, | |
2322 | KERN_ERR, | |
2323 | LOG_DISCOVERY, | |
2324 | "%d:0227 Node Authentication timeout\n", | |
2325 | phba->brd_no); | |
2326 | lpfc_disc_flush_list(phba); | |
2327 | clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
2328 | if (!clearlambox) { | |
2329 | clrlaerr = 1; | |
2330 | lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, | |
2331 | "%d:0226 Device Discovery " | |
2332 | "completion error\n", | |
2333 | phba->brd_no); | |
2334 | phba->hba_state = LPFC_HBA_ERROR; | |
2335 | break; | |
2336 | } | |
2337 | phba->hba_state = LPFC_CLEAR_LA; | |
2338 | lpfc_clear_la(phba, clearlambox); | |
2339 | clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; | |
2340 | rc = lpfc_sli_issue_mbox(phba, clearlambox, | |
2341 | (MBX_NOWAIT | MBX_STOP_IOCB)); | |
2342 | if (rc == MBX_NOT_FINISHED) { | |
2343 | mempool_free(clearlambox, phba->mbox_mem_pool); | |
2344 | clrlaerr = 1; | |
2345 | } | |
2346 | break; | |
2347 | ||
2348 | case LPFC_CLEAR_LA: | |
2349 | /* CLEAR LA timeout */ | |
2350 | lpfc_printf_log(phba, | |
2351 | KERN_ERR, | |
2352 | LOG_DISCOVERY, | |
2353 | "%d:0228 CLEAR LA timeout\n", | |
2354 | phba->brd_no); | |
2355 | clrlaerr = 1; | |
2356 | break; | |
2357 | ||
2358 | case LPFC_HBA_READY: | |
2359 | if (phba->fc_flag & FC_RSCN_MODE) { | |
2360 | lpfc_printf_log(phba, | |
2361 | KERN_ERR, | |
2362 | LOG_DISCOVERY, | |
2363 | "%d:0231 RSCN timeout Data: x%x x%x\n", | |
2364 | phba->brd_no, | |
2365 | phba->fc_ns_retry, LPFC_MAX_NS_RETRY); | |
2366 | ||
2367 | /* Cleanup any outstanding ELS commands */ | |
2368 | lpfc_els_flush_cmd(phba); | |
2369 | ||
2370 | lpfc_els_flush_rscn(phba); | |
2371 | lpfc_disc_flush_list(phba); | |
2372 | } | |
2373 | break; | |
2374 | } | |
2375 | ||
2376 | if (clrlaerr) { | |
2377 | lpfc_disc_flush_list(phba); | |
2378 | psli->ring[(psli->ip_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; | |
2379 | psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; | |
2380 | psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT; | |
2381 | phba->hba_state = LPFC_HBA_READY; | |
2382 | } | |
2383 | ||
2384 | return; | |
2385 | } | |
2386 | ||
2387 | static void | |
2388 | lpfc_nodev_timeout(unsigned long ptr) | |
2389 | { | |
2390 | struct lpfc_hba *phba; | |
2391 | struct lpfc_nodelist *ndlp; | |
2392 | unsigned long iflag; | |
2393 | struct lpfc_work_evt *evtp; | |
2394 | ||
2395 | ndlp = (struct lpfc_nodelist *)ptr; | |
2396 | phba = ndlp->nlp_phba; | |
2397 | evtp = &ndlp->nodev_timeout_evt; | |
2398 | spin_lock_irqsave(phba->host->host_lock, iflag); | |
2399 | ||
2400 | if (!list_empty(&evtp->evt_listp)) { | |
2401 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
2402 | return; | |
2403 | } | |
2404 | evtp->evt_arg1 = ndlp; | |
2405 | evtp->evt = LPFC_EVT_NODEV_TMO; | |
2406 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
2407 | if (phba->work_wait) | |
2408 | wake_up(phba->work_wait); | |
2409 | ||
2410 | spin_unlock_irqrestore(phba->host->host_lock, iflag); | |
2411 | return; | |
2412 | } | |
2413 | ||
2414 | ||
2415 | /* | |
2416 | * This routine handles processing a NameServer REG_LOGIN mailbox | |
2417 | * command upon completion. It is setup in the LPFC_MBOXQ | |
2418 | * as the completion routine when the command is | |
2419 | * handed off to the SLI layer. | |
2420 | */ | |
2421 | void | |
2422 | lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) | |
2423 | { | |
2424 | struct lpfc_sli *psli; | |
2425 | MAILBOX_t *mb; | |
2426 | struct lpfc_dmabuf *mp; | |
2427 | struct lpfc_nodelist *ndlp; | |
2428 | ||
2429 | psli = &phba->sli; | |
2430 | mb = &pmb->mb; | |
2431 | ||
2432 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
2433 | mp = (struct lpfc_dmabuf *) (pmb->context1); | |
2434 | ||
2435 | pmb->context1 = NULL; | |
2436 | ||
2437 | if (ndlp->nlp_rpi != 0) | |
2438 | lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi); | |
2439 | ndlp->nlp_rpi = mb->un.varWords[0]; | |
2440 | lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi); | |
2441 | ndlp->nlp_type |= NLP_FABRIC; | |
2442 | ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; | |
2443 | lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); | |
2444 | ||
2445 | /* Start issuing Fabric-Device Management Interface (FDMI) | |
2446 | * command to 0xfffffa (FDMI well known port) | |
2447 | */ | |
2448 | if (phba->cfg_fdmi_on == 1) { | |
2449 | lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA); | |
2450 | } else { | |
2451 | /* | |
2452 | * Delay issuing FDMI command if fdmi-on=2 | |
2453 | * (supporting RPA/hostnmae) | |
2454 | */ | |
2455 | mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60); | |
2456 | } | |
2457 | ||
2458 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
2459 | kfree(mp); | |
2460 | mempool_free( pmb, phba->mbox_mem_pool); | |
2461 | ||
2462 | return; | |
2463 | } | |
2464 | ||
2465 | /* | |
2466 | * This routine looks up the ndlp hash | |
2467 | * table for the given RPI. If rpi found | |
2468 | * it return the node list pointer | |
2469 | * else return 0. | |
2470 | */ | |
2471 | struct lpfc_nodelist * | |
2472 | lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi) | |
2473 | { | |
2474 | struct lpfc_nodelist *ret; | |
2475 | ||
2476 | ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)]; | |
2477 | while ((ret != 0) && (ret->nlp_rpi != rpi)) { | |
2478 | ret = ret->nlp_rpi_hash_next; | |
2479 | } | |
2480 | return ret; | |
2481 | } | |
2482 | ||
2483 | /* | |
2484 | * This routine looks up the ndlp hash table for the | |
2485 | * given RPI. If rpi found it return the node list | |
2486 | * pointer else return 0 after deleting the entry | |
2487 | * from hash table. | |
2488 | */ | |
2489 | struct lpfc_nodelist * | |
2490 | lpfc_findnode_remove_rpi(struct lpfc_hba * phba, uint16_t rpi) | |
2491 | { | |
2492 | struct lpfc_nodelist *ret, *temp;; | |
2493 | ||
2494 | ret = phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)]; | |
2495 | if (ret == 0) | |
2496 | return NULL; | |
2497 | ||
2498 | if (ret->nlp_rpi == rpi) { | |
2499 | phba->fc_nlplookup[LPFC_RPI_HASH_FUNC(rpi)] = | |
2500 | ret->nlp_rpi_hash_next; | |
2501 | ret->nlp_rpi_hash_next = NULL; | |
2502 | return ret; | |
2503 | } | |
2504 | ||
2505 | while ((ret->nlp_rpi_hash_next != 0) && | |
2506 | (ret->nlp_rpi_hash_next->nlp_rpi != rpi)) { | |
2507 | ret = ret->nlp_rpi_hash_next; | |
2508 | } | |
2509 | ||
2510 | if (ret->nlp_rpi_hash_next != 0) { | |
2511 | temp = ret->nlp_rpi_hash_next; | |
2512 | ret->nlp_rpi_hash_next = temp->nlp_rpi_hash_next; | |
2513 | temp->nlp_rpi_hash_next = NULL; | |
2514 | return temp; | |
2515 | } else { | |
2516 | return NULL; | |
2517 | } | |
2518 | } | |
2519 | ||
2520 | /* | |
2521 | * This routine adds the node list entry to the | |
2522 | * ndlp hash table. | |
2523 | */ | |
2524 | void | |
2525 | lpfc_addnode_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, | |
2526 | uint16_t rpi) | |
2527 | { | |
2528 | ||
2529 | uint32_t index; | |
2530 | ||
2531 | index = LPFC_RPI_HASH_FUNC(rpi); | |
2532 | ndlp->nlp_rpi_hash_next = phba->fc_nlplookup[index]; | |
2533 | phba->fc_nlplookup[index] = ndlp; | |
2534 | return; | |
2535 | } | |
2536 | ||
2537 | void | |
2538 | lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, | |
2539 | uint32_t did) | |
2540 | { | |
2541 | memset(ndlp, 0, sizeof (struct lpfc_nodelist)); | |
2542 | INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp); | |
2543 | INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); | |
2544 | init_timer(&ndlp->nlp_tmofunc); | |
2545 | ndlp->nlp_tmofunc.function = lpfc_nodev_timeout; | |
2546 | ndlp->nlp_tmofunc.data = (unsigned long)ndlp; | |
2547 | init_timer(&ndlp->nlp_delayfunc); | |
2548 | ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; | |
2549 | ndlp->nlp_delayfunc.data = (unsigned long)ndlp; | |
2550 | ndlp->nlp_DID = did; | |
2551 | ndlp->nlp_phba = phba; | |
2552 | ndlp->nlp_sid = NLP_NO_SID; | |
2553 | return; | |
2554 | } |