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_nportdisc.c 1.179 2005/04/13 11:59:13EDT sf_support Exp $ |
23 | */ |
24 | |
25 | #include <linux/blkdev.h> |
26 | #include <linux/pci.h> |
27 | #include <linux/interrupt.h> |
28 | |
29 | #include <scsi/scsi_device.h> |
30 | #include <scsi/scsi_host.h> |
31 | #include <scsi/scsi_transport_fc.h> |
32 | |
33 | #include "lpfc_hw.h" |
34 | #include "lpfc_sli.h" |
35 | #include "lpfc_disc.h" |
36 | #include "lpfc_scsi.h" |
37 | #include "lpfc.h" |
38 | #include "lpfc_logmsg.h" |
39 | #include "lpfc_crtn.h" |
40 | |
41 | |
42 | /* Called to verify a rcv'ed ADISC was intended for us. */ |
43 | static int |
44 | lpfc_check_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, |
45 | struct lpfc_name * nn, struct lpfc_name * pn) |
46 | { |
47 | /* Compare the ADISC rsp WWNN / WWPN matches our internal node |
48 | * table entry for that node. |
49 | */ |
50 | if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)) != 0) |
51 | return (0); |
52 | |
53 | if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)) != 0) |
54 | return (0); |
55 | |
56 | /* we match, return success */ |
57 | return (1); |
58 | } |
59 | |
60 | |
61 | int |
62 | lpfc_check_sparm(struct lpfc_hba * phba, |
63 | struct lpfc_nodelist * ndlp, struct serv_parm * sp, |
64 | uint32_t class) |
65 | { |
66 | volatile struct serv_parm *hsp = &phba->fc_sparam; |
67 | /* First check for supported version */ |
68 | |
69 | /* Next check for class validity */ |
70 | if (sp->cls1.classValid) { |
71 | |
72 | if (sp->cls1.rcvDataSizeMsb > hsp->cls1.rcvDataSizeMsb) |
73 | sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb; |
74 | if (sp->cls1.rcvDataSizeLsb > hsp->cls1.rcvDataSizeLsb) |
75 | sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb; |
76 | } else if (class == CLASS1) { |
77 | return (0); |
78 | } |
79 | |
80 | if (sp->cls2.classValid) { |
81 | |
82 | if (sp->cls2.rcvDataSizeMsb > hsp->cls2.rcvDataSizeMsb) |
83 | sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb; |
84 | if (sp->cls2.rcvDataSizeLsb > hsp->cls2.rcvDataSizeLsb) |
85 | sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb; |
86 | } else if (class == CLASS2) { |
87 | return (0); |
88 | } |
89 | |
90 | if (sp->cls3.classValid) { |
91 | |
92 | if (sp->cls3.rcvDataSizeMsb > hsp->cls3.rcvDataSizeMsb) |
93 | sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb; |
94 | if (sp->cls3.rcvDataSizeLsb > hsp->cls3.rcvDataSizeLsb) |
95 | sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb; |
96 | } else if (class == CLASS3) { |
97 | return (0); |
98 | } |
99 | |
100 | if (sp->cmn.bbRcvSizeMsb > hsp->cmn.bbRcvSizeMsb) |
101 | sp->cmn.bbRcvSizeMsb = hsp->cmn.bbRcvSizeMsb; |
102 | if (sp->cmn.bbRcvSizeLsb > hsp->cmn.bbRcvSizeLsb) |
103 | sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; |
104 | |
105 | /* If check is good, copy wwpn wwnn into ndlp */ |
106 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); |
107 | memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); |
108 | return (1); |
109 | } |
110 | |
111 | static void * |
112 | lpfc_check_elscmpl_iocb(struct lpfc_hba * phba, |
113 | struct lpfc_iocbq *cmdiocb, |
114 | struct lpfc_iocbq *rspiocb) |
115 | { |
116 | struct lpfc_dmabuf *pcmd, *prsp; |
117 | uint32_t *lp; |
118 | void *ptr = NULL; |
119 | IOCB_t *irsp; |
120 | |
121 | irsp = &rspiocb->iocb; |
122 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
123 | |
124 | /* For lpfc_els_abort, context2 could be zero'ed to delay |
125 | * freeing associated memory till after ABTS completes. |
126 | */ |
127 | if (pcmd) { |
128 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, |
129 | list); |
130 | if (prsp) { |
131 | lp = (uint32_t *) prsp->virt; |
132 | ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); |
133 | } |
134 | } |
135 | else { |
136 | /* Force ulpStatus error since we are returning NULL ptr */ |
137 | if (!(irsp->ulpStatus)) { |
138 | irsp->ulpStatus = IOSTAT_LOCAL_REJECT; |
139 | irsp->un.ulpWord[4] = IOERR_SLI_ABORTED; |
140 | } |
141 | ptr = NULL; |
142 | } |
143 | return (ptr); |
144 | } |
145 | |
146 | |
147 | /* |
148 | * Free resources / clean up outstanding I/Os |
149 | * associated with a LPFC_NODELIST entry. This |
150 | * routine effectively results in a "software abort". |
151 | */ |
152 | int |
153 | lpfc_els_abort(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, |
154 | int send_abts) |
155 | { |
156 | struct lpfc_sli *psli; |
157 | struct lpfc_sli_ring *pring; |
158 | struct lpfc_iocbq *iocb, *next_iocb; |
159 | IOCB_t *icmd; |
160 | int found = 0; |
161 | |
162 | /* Abort outstanding I/O on NPort <nlp_DID> */ |
163 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, |
164 | "%d:0201 Abort outstanding I/O on NPort x%x " |
165 | "Data: x%x x%x x%x\n", |
166 | phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag, |
167 | ndlp->nlp_state, ndlp->nlp_rpi); |
168 | |
169 | psli = &phba->sli; |
170 | pring = &psli->ring[LPFC_ELS_RING]; |
171 | |
172 | /* First check the txq */ |
173 | do { |
174 | found = 0; |
175 | spin_lock_irq(phba->host->host_lock); |
176 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
177 | /* Check to see if iocb matches the nport we are looking |
178 | for */ |
179 | if ((lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))) { |
180 | found = 1; |
181 | /* It matches, so deque and call compl with an |
182 | error */ |
183 | list_del(&iocb->list); |
184 | pring->txq_cnt--; |
185 | if (iocb->iocb_cmpl) { |
186 | icmd = &iocb->iocb; |
187 | icmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
188 | icmd->un.ulpWord[4] = IOERR_SLI_ABORTED; |
189 | spin_unlock_irq(phba->host->host_lock); |
190 | (iocb->iocb_cmpl) (phba, iocb, iocb); |
191 | spin_lock_irq(phba->host->host_lock); |
192 | } else { |
193 | list_add_tail(&iocb->list, |
194 | &phba->lpfc_iocb_list); |
195 | } |
196 | break; |
197 | } |
198 | } |
199 | spin_unlock_irq(phba->host->host_lock); |
200 | } while (found); |
201 | |
202 | /* Everything on txcmplq will be returned by firmware |
203 | * with a no rpi / linkdown / abort error. For ring 0, |
204 | * ELS discovery, we want to get rid of it right here. |
205 | */ |
206 | /* Next check the txcmplq */ |
207 | do { |
208 | found = 0; |
209 | spin_lock_irq(phba->host->host_lock); |
210 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, |
211 | list) { |
212 | /* Check to see if iocb matches the nport we are looking |
213 | for */ |
214 | if ((lpfc_check_sli_ndlp (phba, pring, iocb, ndlp))) { |
215 | found = 1; |
216 | /* It matches, so deque and call compl with an |
217 | error */ |
218 | list_del(&iocb->list); |
219 | pring->txcmplq_cnt--; |
220 | |
221 | icmd = &iocb->iocb; |
222 | /* If the driver is completing an ELS |
223 | * command early, flush it out of the firmware. |
224 | */ |
225 | if (send_abts && |
226 | (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) && |
227 | (icmd->un.elsreq64.bdl.ulpIoTag32)) { |
228 | lpfc_sli_issue_abort_iotag32(phba, |
229 | pring, iocb); |
230 | } |
231 | if (iocb->iocb_cmpl) { |
232 | icmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
233 | icmd->un.ulpWord[4] = IOERR_SLI_ABORTED; |
234 | spin_unlock_irq(phba->host->host_lock); |
235 | (iocb->iocb_cmpl) (phba, iocb, iocb); |
236 | spin_lock_irq(phba->host->host_lock); |
237 | } else { |
238 | list_add_tail(&iocb->list, |
239 | &phba->lpfc_iocb_list); |
240 | } |
241 | break; |
242 | } |
243 | } |
244 | spin_unlock_irq(phba->host->host_lock); |
245 | } while(found); |
246 | |
247 | /* If we are delaying issuing an ELS command, cancel it */ |
248 | if (ndlp->nlp_flag & NLP_DELAY_TMO) { |
249 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; |
250 | del_timer_sync(&ndlp->nlp_delayfunc); |
251 | if (!list_empty(&ndlp->els_retry_evt.evt_listp)) |
252 | list_del_init(&ndlp->els_retry_evt.evt_listp); |
253 | } |
254 | return (0); |
255 | } |
256 | |
257 | static int |
258 | lpfc_rcv_plogi(struct lpfc_hba * phba, |
259 | struct lpfc_nodelist * ndlp, |
260 | struct lpfc_iocbq *cmdiocb) |
261 | { |
262 | struct lpfc_dmabuf *pcmd; |
263 | uint32_t *lp; |
264 | IOCB_t *icmd; |
265 | struct serv_parm *sp; |
266 | LPFC_MBOXQ_t *mbox; |
267 | struct ls_rjt stat; |
268 | int rc; |
269 | |
270 | memset(&stat, 0, sizeof (struct ls_rjt)); |
271 | if (phba->hba_state <= LPFC_FLOGI) { |
272 | /* Before responding to PLOGI, check for pt2pt mode. |
273 | * If we are pt2pt, with an outstanding FLOGI, abort |
274 | * the FLOGI and resend it first. |
275 | */ |
276 | if (phba->fc_flag & FC_PT2PT) { |
277 | lpfc_els_abort_flogi(phba); |
278 | if (!(phba->fc_flag & FC_PT2PT_PLOGI)) { |
279 | /* If the other side is supposed to initiate |
280 | * the PLOGI anyway, just ACC it now and |
281 | * move on with discovery. |
282 | */ |
283 | phba->fc_edtov = FF_DEF_EDTOV; |
284 | phba->fc_ratov = FF_DEF_RATOV; |
285 | /* Start discovery - this should just do |
286 | CLEAR_LA */ |
287 | lpfc_disc_start(phba); |
288 | } |
289 | else { |
290 | lpfc_initial_flogi(phba); |
291 | } |
292 | } |
293 | else { |
294 | stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; |
295 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
296 | lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, |
297 | ndlp); |
298 | return 0; |
299 | } |
300 | } |
301 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
302 | lp = (uint32_t *) pcmd->virt; |
303 | sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); |
304 | if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3) == 0)) { |
305 | /* Reject this request because invalid parameters */ |
306 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; |
307 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; |
308 | lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp); |
309 | return (0); |
310 | } |
311 | icmd = &cmdiocb->iocb; |
312 | |
313 | /* PLOGI chkparm OK */ |
314 | lpfc_printf_log(phba, |
315 | KERN_INFO, |
316 | LOG_ELS, |
317 | "%d:0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", |
318 | phba->brd_no, |
319 | ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, |
320 | ndlp->nlp_rpi); |
321 | |
322 | if ((phba->cfg_fcp_class == 2) && |
323 | (sp->cls2.classValid)) { |
324 | ndlp->nlp_fcp_info |= CLASS2; |
325 | } else { |
326 | ndlp->nlp_fcp_info |= CLASS3; |
327 | } |
328 | ndlp->nlp_class_sup = 0; |
329 | if (sp->cls1.classValid) |
330 | ndlp->nlp_class_sup |= FC_COS_CLASS1; |
331 | if (sp->cls2.classValid) |
332 | ndlp->nlp_class_sup |= FC_COS_CLASS2; |
333 | if (sp->cls3.classValid) |
334 | ndlp->nlp_class_sup |= FC_COS_CLASS3; |
335 | if (sp->cls4.classValid) |
336 | ndlp->nlp_class_sup |= FC_COS_CLASS4; |
337 | ndlp->nlp_maxframe = |
338 | ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; |
339 | |
340 | /* no need to reg_login if we are already in one of these states */ |
341 | switch(ndlp->nlp_state) { |
342 | case NLP_STE_NPR_NODE: |
343 | if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) |
344 | break; |
345 | case NLP_STE_REG_LOGIN_ISSUE: |
346 | case NLP_STE_PRLI_ISSUE: |
347 | case NLP_STE_UNMAPPED_NODE: |
348 | case NLP_STE_MAPPED_NODE: |
349 | lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, 0); |
350 | return (1); |
351 | } |
352 | |
353 | if ((phba->fc_flag & FC_PT2PT) |
354 | && !(phba->fc_flag & FC_PT2PT_PLOGI)) { |
355 | /* rcv'ed PLOGI decides what our NPortId will be */ |
356 | phba->fc_myDID = icmd->un.rcvels.parmRo; |
357 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
358 | if (mbox == NULL) |
359 | goto out; |
360 | lpfc_config_link(phba, mbox); |
361 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
362 | rc = lpfc_sli_issue_mbox |
363 | (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)); |
364 | if (rc == MBX_NOT_FINISHED) { |
365 | mempool_free( mbox, phba->mbox_mem_pool); |
366 | goto out; |
367 | } |
368 | |
369 | lpfc_can_disctmo(phba); |
370 | } |
371 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
372 | if (mbox == NULL) |
373 | goto out; |
374 | |
375 | if (lpfc_reg_login(phba, icmd->un.rcvels.remoteID, |
376 | (uint8_t *) sp, mbox, 0)) { |
377 | mempool_free( mbox, phba->mbox_mem_pool); |
378 | goto out; |
379 | } |
380 | |
381 | /* ACC PLOGI rsp command needs to execute first, |
382 | * queue this mbox command to be processed later. |
383 | */ |
384 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; |
385 | mbox->context2 = ndlp; |
386 | ndlp->nlp_flag |= NLP_ACC_REGLOGIN; |
387 | |
388 | /* If there is an outstanding PLOGI issued, abort it before |
389 | * sending ACC rsp to PLOGI recieved. |
390 | */ |
391 | if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { |
392 | /* software abort outstanding PLOGI */ |
393 | lpfc_els_abort(phba, ndlp, 1); |
394 | } |
395 | ndlp->nlp_flag |= NLP_RCV_PLOGI; |
396 | lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0); |
397 | return (1); |
398 | |
399 | out: |
400 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; |
401 | stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; |
402 | lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp); |
403 | return (0); |
404 | } |
405 | |
406 | static int |
407 | lpfc_rcv_padisc(struct lpfc_hba * phba, |
408 | struct lpfc_nodelist * ndlp, |
409 | struct lpfc_iocbq *cmdiocb) |
410 | { |
411 | struct lpfc_dmabuf *pcmd; |
412 | struct serv_parm *sp; |
413 | struct lpfc_name *pnn, *ppn; |
414 | struct ls_rjt stat; |
415 | ADISC *ap; |
416 | IOCB_t *icmd; |
417 | uint32_t *lp; |
418 | uint32_t cmd; |
419 | |
420 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
421 | lp = (uint32_t *) pcmd->virt; |
422 | |
423 | cmd = *lp++; |
424 | if (cmd == ELS_CMD_ADISC) { |
425 | ap = (ADISC *) lp; |
426 | pnn = (struct lpfc_name *) & ap->nodeName; |
427 | ppn = (struct lpfc_name *) & ap->portName; |
428 | } else { |
429 | sp = (struct serv_parm *) lp; |
430 | pnn = (struct lpfc_name *) & sp->nodeName; |
431 | ppn = (struct lpfc_name *) & sp->portName; |
432 | } |
433 | |
434 | icmd = &cmdiocb->iocb; |
435 | if ((icmd->ulpStatus == 0) && |
436 | (lpfc_check_adisc(phba, ndlp, pnn, ppn))) { |
437 | if (cmd == ELS_CMD_ADISC) { |
438 | lpfc_els_rsp_adisc_acc(phba, cmdiocb, ndlp); |
439 | } |
440 | else { |
441 | lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, |
442 | NULL, 0); |
443 | } |
444 | return (1); |
445 | } |
446 | /* Reject this request because invalid parameters */ |
447 | stat.un.b.lsRjtRsvd0 = 0; |
448 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; |
449 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; |
450 | stat.un.b.vendorUnique = 0; |
451 | lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp); |
452 | |
453 | ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI; |
454 | /* 1 sec timeout */ |
455 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); |
456 | |
457 | spin_lock_irq(phba->host->host_lock); |
458 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
459 | spin_unlock_irq(phba->host->host_lock); |
460 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
461 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
462 | return (0); |
463 | } |
464 | |
465 | static int |
466 | lpfc_rcv_logo(struct lpfc_hba * phba, |
467 | struct lpfc_nodelist * ndlp, |
468 | struct lpfc_iocbq *cmdiocb) |
469 | { |
470 | /* Put ndlp on NPR list with 1 sec timeout for plogi, ACC logo */ |
471 | /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary |
472 | * PLOGIs during LOGO storms from a device. |
473 | */ |
474 | ndlp->nlp_flag |= NLP_LOGO_ACC; |
475 | lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); |
476 | |
477 | if (!(ndlp->nlp_type & NLP_FABRIC)) { |
478 | /* Only try to re-login if this is NOT a Fabric Node */ |
479 | ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI; |
480 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1); |
481 | spin_lock_irq(phba->host->host_lock); |
482 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
483 | spin_unlock_irq(phba->host->host_lock); |
484 | } |
485 | |
486 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
487 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
488 | |
489 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
490 | /* The driver has to wait until the ACC completes before it continues |
491 | * processing the LOGO. The action will resume in |
492 | * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an |
493 | * unreg_login, the driver waits so the ACC does not get aborted. |
494 | */ |
495 | return (0); |
496 | } |
497 | |
498 | static void |
499 | lpfc_rcv_prli(struct lpfc_hba * phba, |
500 | struct lpfc_nodelist * ndlp, |
501 | struct lpfc_iocbq *cmdiocb) |
502 | { |
503 | struct lpfc_dmabuf *pcmd; |
504 | uint32_t *lp; |
505 | PRLI *npr; |
506 | struct fc_rport *rport = ndlp->rport; |
507 | u32 roles; |
508 | |
509 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
510 | lp = (uint32_t *) pcmd->virt; |
511 | npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); |
512 | |
513 | ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); |
514 | ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; |
515 | if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) && |
516 | (npr->prliType == PRLI_FCP_TYPE)) { |
517 | if (npr->initiatorFunc) |
518 | ndlp->nlp_type |= NLP_FCP_INITIATOR; |
519 | if (npr->targetFunc) |
520 | ndlp->nlp_type |= NLP_FCP_TARGET; |
521 | if (npr->Retry) |
522 | ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; |
523 | } |
524 | if (rport) { |
525 | /* We need to update the rport role values */ |
526 | roles = FC_RPORT_ROLE_UNKNOWN; |
527 | if (ndlp->nlp_type & NLP_FCP_INITIATOR) |
528 | roles |= FC_RPORT_ROLE_FCP_INITIATOR; |
529 | if (ndlp->nlp_type & NLP_FCP_TARGET) |
530 | roles |= FC_RPORT_ROLE_FCP_TARGET; |
531 | fc_remote_port_rolechg(rport, roles); |
532 | } |
533 | } |
534 | |
535 | static uint32_t |
536 | lpfc_disc_set_adisc(struct lpfc_hba * phba, |
537 | struct lpfc_nodelist * ndlp) |
538 | { |
539 | /* Check config parameter use-adisc or FCP-2 */ |
540 | if ((phba->cfg_use_adisc == 0) && |
541 | !(phba->fc_flag & FC_RSCN_MODE)) { |
542 | if (!(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) |
543 | return (0); |
544 | } |
545 | spin_lock_irq(phba->host->host_lock); |
546 | ndlp->nlp_flag |= NLP_NPR_ADISC; |
547 | spin_unlock_irq(phba->host->host_lock); |
548 | return (1); |
549 | } |
550 | |
551 | static uint32_t |
552 | lpfc_disc_noop(struct lpfc_hba * phba, |
553 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
554 | { |
555 | /* This routine does nothing, just return the current state */ |
556 | return (ndlp->nlp_state); |
557 | } |
558 | |
559 | static uint32_t |
560 | lpfc_disc_illegal(struct lpfc_hba * phba, |
561 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
562 | { |
563 | lpfc_printf_log(phba, |
564 | KERN_ERR, |
565 | LOG_DISCOVERY, |
566 | "%d:0253 Illegal State Transition: node x%x event x%x, " |
567 | "state x%x Data: x%x x%x\n", |
568 | phba->brd_no, |
569 | ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, |
570 | ndlp->nlp_flag); |
571 | return (ndlp->nlp_state); |
572 | } |
573 | |
574 | /* Start of Discovery State Machine routines */ |
575 | |
576 | static uint32_t |
577 | lpfc_rcv_plogi_unused_node(struct lpfc_hba * phba, |
578 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
579 | { |
580 | struct lpfc_iocbq *cmdiocb; |
581 | |
582 | cmdiocb = (struct lpfc_iocbq *) arg; |
583 | |
584 | if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) { |
585 | ndlp->nlp_state = NLP_STE_UNUSED_NODE; |
586 | lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST); |
587 | return (ndlp->nlp_state); |
588 | } |
589 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
590 | return (NLP_STE_FREED_NODE); |
591 | } |
592 | |
593 | static uint32_t |
594 | lpfc_rcv_els_unused_node(struct lpfc_hba * phba, |
595 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
596 | { |
597 | lpfc_issue_els_logo(phba, ndlp, 0); |
598 | lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST); |
599 | return (ndlp->nlp_state); |
600 | } |
601 | |
602 | static uint32_t |
603 | lpfc_rcv_logo_unused_node(struct lpfc_hba * phba, |
604 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
605 | { |
606 | struct lpfc_iocbq *cmdiocb; |
607 | |
608 | cmdiocb = (struct lpfc_iocbq *) arg; |
609 | |
610 | spin_lock_irq(phba->host->host_lock); |
611 | ndlp->nlp_flag |= NLP_LOGO_ACC; |
612 | spin_unlock_irq(phba->host->host_lock); |
613 | lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); |
614 | lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST); |
615 | |
616 | return (ndlp->nlp_state); |
617 | } |
618 | |
619 | static uint32_t |
620 | lpfc_cmpl_logo_unused_node(struct lpfc_hba * phba, |
621 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
622 | { |
623 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
624 | return (NLP_STE_FREED_NODE); |
625 | } |
626 | |
627 | static uint32_t |
628 | lpfc_device_rm_unused_node(struct lpfc_hba * phba, |
629 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
630 | { |
631 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
632 | return (NLP_STE_FREED_NODE); |
633 | } |
634 | |
635 | static uint32_t |
636 | lpfc_rcv_plogi_plogi_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, |
637 | void *arg, uint32_t evt) |
638 | { |
639 | struct lpfc_iocbq *cmdiocb = arg; |
640 | struct lpfc_dmabuf *pcmd; |
641 | struct serv_parm *sp; |
642 | uint32_t *lp; |
643 | struct ls_rjt stat; |
644 | int port_cmp; |
645 | |
646 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
647 | lp = (uint32_t *) pcmd->virt; |
648 | sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); |
649 | |
650 | memset(&stat, 0, sizeof (struct ls_rjt)); |
651 | |
652 | /* For a PLOGI, we only accept if our portname is less |
653 | * than the remote portname. |
654 | */ |
655 | phba->fc_stat.elsLogiCol++; |
656 | port_cmp = memcmp(&phba->fc_portname, &sp->portName, |
657 | sizeof (struct lpfc_name)); |
658 | |
659 | if (port_cmp >= 0) { |
660 | /* Reject this request because the remote node will accept |
661 | ours */ |
662 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; |
663 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; |
664 | lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp); |
665 | } |
666 | else { |
667 | lpfc_rcv_plogi(phba, ndlp, cmdiocb); |
668 | } /* if our portname was less */ |
669 | |
670 | return (ndlp->nlp_state); |
671 | } |
672 | |
673 | static uint32_t |
674 | lpfc_rcv_els_plogi_issue(struct lpfc_hba * phba, |
675 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
676 | { |
677 | struct lpfc_iocbq *cmdiocb; |
678 | |
679 | cmdiocb = (struct lpfc_iocbq *) arg; |
680 | |
681 | /* software abort outstanding PLOGI */ |
682 | lpfc_els_abort(phba, ndlp, 1); |
683 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1); |
684 | spin_lock_irq(phba->host->host_lock); |
685 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
686 | spin_unlock_irq(phba->host->host_lock); |
687 | |
688 | if (evt == NLP_EVT_RCV_LOGO) { |
689 | lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); |
690 | } |
691 | else { |
692 | lpfc_issue_els_logo(phba, ndlp, 0); |
693 | } |
694 | |
695 | /* Put ndlp in npr list set plogi timer for 1 sec */ |
696 | ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI; |
697 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
698 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
699 | |
700 | return (ndlp->nlp_state); |
701 | } |
702 | |
703 | static uint32_t |
704 | lpfc_cmpl_plogi_plogi_issue(struct lpfc_hba * phba, |
705 | struct lpfc_nodelist * ndlp, void *arg, |
706 | uint32_t evt) |
707 | { |
708 | struct lpfc_iocbq *cmdiocb, *rspiocb; |
709 | struct lpfc_dmabuf *pcmd, *prsp; |
710 | uint32_t *lp; |
711 | IOCB_t *irsp; |
712 | struct serv_parm *sp; |
713 | LPFC_MBOXQ_t *mbox; |
714 | |
715 | cmdiocb = (struct lpfc_iocbq *) arg; |
716 | rspiocb = cmdiocb->context_un.rsp_iocb; |
717 | |
718 | if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { |
719 | return (ndlp->nlp_state); |
720 | } |
721 | |
722 | irsp = &rspiocb->iocb; |
723 | |
724 | if (irsp->ulpStatus) |
725 | goto out; |
726 | |
727 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
728 | |
729 | prsp = list_get_first(&pcmd->list, |
730 | struct lpfc_dmabuf, |
731 | list); |
732 | lp = (uint32_t *) prsp->virt; |
733 | |
734 | sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); |
735 | if (!lpfc_check_sparm(phba, ndlp, sp, CLASS3)) |
736 | goto out; |
737 | |
738 | /* PLOGI chkparm OK */ |
739 | lpfc_printf_log(phba, |
740 | KERN_INFO, |
741 | LOG_ELS, |
742 | "%d:0121 PLOGI chkparm OK " |
743 | "Data: x%x x%x x%x x%x\n", |
744 | phba->brd_no, |
745 | ndlp->nlp_DID, ndlp->nlp_state, |
746 | ndlp->nlp_flag, ndlp->nlp_rpi); |
747 | |
748 | if ((phba->cfg_fcp_class == 2) && |
749 | (sp->cls2.classValid)) { |
750 | ndlp->nlp_fcp_info |= CLASS2; |
751 | } else { |
752 | ndlp->nlp_fcp_info |= CLASS3; |
753 | } |
754 | ndlp->nlp_class_sup = 0; |
755 | if (sp->cls1.classValid) |
756 | ndlp->nlp_class_sup |= FC_COS_CLASS1; |
757 | if (sp->cls2.classValid) |
758 | ndlp->nlp_class_sup |= FC_COS_CLASS2; |
759 | if (sp->cls3.classValid) |
760 | ndlp->nlp_class_sup |= FC_COS_CLASS3; |
761 | if (sp->cls4.classValid) |
762 | ndlp->nlp_class_sup |= FC_COS_CLASS4; |
763 | ndlp->nlp_maxframe = |
764 | ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | |
765 | sp->cmn.bbRcvSizeLsb; |
766 | |
767 | if (!(mbox = mempool_alloc(phba->mbox_mem_pool, |
768 | GFP_KERNEL))) |
769 | goto out; |
770 | |
771 | lpfc_unreg_rpi(phba, ndlp); |
772 | if (lpfc_reg_login |
773 | (phba, irsp->un.elsreq64.remoteID, |
774 | (uint8_t *) sp, mbox, 0) == 0) { |
775 | /* set_slim mailbox command needs to |
776 | * execute first, queue this command to |
777 | * be processed later. |
778 | */ |
779 | switch(ndlp->nlp_DID) { |
780 | case NameServer_DID: |
781 | mbox->mbox_cmpl = |
782 | lpfc_mbx_cmpl_ns_reg_login; |
783 | break; |
784 | case FDMI_DID: |
785 | mbox->mbox_cmpl = |
786 | lpfc_mbx_cmpl_fdmi_reg_login; |
787 | break; |
788 | default: |
789 | mbox->mbox_cmpl = |
790 | lpfc_mbx_cmpl_reg_login; |
791 | } |
792 | mbox->context2 = ndlp; |
793 | if (lpfc_sli_issue_mbox(phba, mbox, |
794 | (MBX_NOWAIT | MBX_STOP_IOCB)) |
795 | != MBX_NOT_FINISHED) { |
796 | ndlp->nlp_state = |
797 | NLP_STE_REG_LOGIN_ISSUE; |
798 | lpfc_nlp_list(phba, ndlp, |
799 | NLP_REGLOGIN_LIST); |
800 | return (ndlp->nlp_state); |
801 | } |
802 | mempool_free(mbox, phba->mbox_mem_pool); |
803 | } else { |
804 | mempool_free(mbox, phba->mbox_mem_pool); |
805 | } |
806 | |
807 | |
808 | out: |
809 | /* Free this node since the driver cannot login or has the wrong |
810 | sparm */ |
811 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
812 | return (NLP_STE_FREED_NODE); |
813 | } |
814 | |
815 | static uint32_t |
816 | lpfc_device_rm_plogi_issue(struct lpfc_hba * phba, |
817 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
818 | { |
819 | /* software abort outstanding PLOGI */ |
820 | lpfc_els_abort(phba, ndlp, 1); |
821 | |
822 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
823 | return (NLP_STE_FREED_NODE); |
824 | } |
825 | |
826 | static uint32_t |
827 | lpfc_device_recov_plogi_issue(struct lpfc_hba * phba, |
828 | struct lpfc_nodelist * ndlp, void *arg, |
829 | uint32_t evt) |
830 | { |
831 | /* software abort outstanding PLOGI */ |
832 | lpfc_els_abort(phba, ndlp, 1); |
833 | |
834 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
835 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
836 | spin_lock_irq(phba->host->host_lock); |
837 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
838 | spin_unlock_irq(phba->host->host_lock); |
839 | |
840 | return (ndlp->nlp_state); |
841 | } |
842 | |
843 | static uint32_t |
844 | lpfc_rcv_plogi_adisc_issue(struct lpfc_hba * phba, |
845 | struct lpfc_nodelist * ndlp, void *arg, |
846 | uint32_t evt) |
847 | { |
848 | struct lpfc_iocbq *cmdiocb; |
849 | |
850 | /* software abort outstanding ADISC */ |
851 | lpfc_els_abort(phba, ndlp, 1); |
852 | |
853 | cmdiocb = (struct lpfc_iocbq *) arg; |
854 | |
855 | if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) { |
856 | return (ndlp->nlp_state); |
857 | } |
858 | ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; |
859 | lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); |
860 | lpfc_issue_els_plogi(phba, ndlp, 0); |
861 | |
862 | return (ndlp->nlp_state); |
863 | } |
864 | |
865 | static uint32_t |
866 | lpfc_rcv_prli_adisc_issue(struct lpfc_hba * phba, |
867 | struct lpfc_nodelist * ndlp, void *arg, |
868 | uint32_t evt) |
869 | { |
870 | struct lpfc_iocbq *cmdiocb; |
871 | |
872 | cmdiocb = (struct lpfc_iocbq *) arg; |
873 | |
874 | lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp); |
875 | return (ndlp->nlp_state); |
876 | } |
877 | |
878 | static uint32_t |
879 | lpfc_rcv_logo_adisc_issue(struct lpfc_hba * phba, |
880 | struct lpfc_nodelist * ndlp, void *arg, |
881 | uint32_t evt) |
882 | { |
883 | struct lpfc_iocbq *cmdiocb; |
884 | |
885 | cmdiocb = (struct lpfc_iocbq *) arg; |
886 | |
887 | /* software abort outstanding ADISC */ |
888 | lpfc_els_abort(phba, ndlp, 0); |
889 | |
890 | lpfc_rcv_logo(phba, ndlp, cmdiocb); |
891 | return (ndlp->nlp_state); |
892 | } |
893 | |
894 | static uint32_t |
895 | lpfc_rcv_padisc_adisc_issue(struct lpfc_hba * phba, |
896 | struct lpfc_nodelist * ndlp, void *arg, |
897 | uint32_t evt) |
898 | { |
899 | struct lpfc_iocbq *cmdiocb; |
900 | |
901 | cmdiocb = (struct lpfc_iocbq *) arg; |
902 | |
903 | lpfc_rcv_padisc(phba, ndlp, cmdiocb); |
904 | return (ndlp->nlp_state); |
905 | } |
906 | |
907 | static uint32_t |
908 | lpfc_rcv_prlo_adisc_issue(struct lpfc_hba * phba, |
909 | struct lpfc_nodelist * ndlp, void *arg, |
910 | uint32_t evt) |
911 | { |
912 | struct lpfc_iocbq *cmdiocb; |
913 | |
914 | cmdiocb = (struct lpfc_iocbq *) arg; |
915 | |
916 | /* Treat like rcv logo */ |
917 | lpfc_rcv_logo(phba, ndlp, cmdiocb); |
918 | return (ndlp->nlp_state); |
919 | } |
920 | |
921 | static uint32_t |
922 | lpfc_cmpl_adisc_adisc_issue(struct lpfc_hba * phba, |
923 | struct lpfc_nodelist * ndlp, void *arg, |
924 | uint32_t evt) |
925 | { |
926 | struct lpfc_iocbq *cmdiocb, *rspiocb; |
927 | IOCB_t *irsp; |
928 | ADISC *ap; |
929 | |
930 | cmdiocb = (struct lpfc_iocbq *) arg; |
931 | rspiocb = cmdiocb->context_un.rsp_iocb; |
932 | |
933 | ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); |
934 | irsp = &rspiocb->iocb; |
935 | |
936 | if ((irsp->ulpStatus) || |
937 | (!lpfc_check_adisc(phba, ndlp, &ap->nodeName, &ap->portName))) { |
938 | ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI; |
939 | /* 1 sec timeout */ |
940 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); |
941 | spin_lock_irq(phba->host->host_lock); |
942 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
943 | spin_unlock_irq(phba->host->host_lock); |
944 | |
945 | memset(&ndlp->nlp_nodename, 0, sizeof (struct lpfc_name)); |
946 | memset(&ndlp->nlp_portname, 0, sizeof (struct lpfc_name)); |
947 | |
948 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
949 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
950 | lpfc_unreg_rpi(phba, ndlp); |
951 | return (ndlp->nlp_state); |
952 | } |
953 | ndlp->nlp_state = NLP_STE_MAPPED_NODE; |
954 | lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST); |
955 | return (ndlp->nlp_state); |
956 | } |
957 | |
958 | static uint32_t |
959 | lpfc_device_rm_adisc_issue(struct lpfc_hba * phba, |
960 | struct lpfc_nodelist * ndlp, void *arg, |
961 | uint32_t evt) |
962 | { |
963 | /* software abort outstanding ADISC */ |
964 | lpfc_els_abort(phba, ndlp, 1); |
965 | |
966 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
967 | return (NLP_STE_FREED_NODE); |
968 | } |
969 | |
970 | static uint32_t |
971 | lpfc_device_recov_adisc_issue(struct lpfc_hba * phba, |
972 | struct lpfc_nodelist * ndlp, void *arg, |
973 | uint32_t evt) |
974 | { |
975 | /* software abort outstanding ADISC */ |
976 | lpfc_els_abort(phba, ndlp, 1); |
977 | |
978 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
979 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
980 | spin_lock_irq(phba->host->host_lock); |
981 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
982 | spin_unlock_irq(phba->host->host_lock); |
983 | |
984 | lpfc_disc_set_adisc(phba, ndlp); |
985 | return (ndlp->nlp_state); |
986 | } |
987 | |
988 | static uint32_t |
989 | lpfc_rcv_plogi_reglogin_issue(struct lpfc_hba * phba, |
990 | struct lpfc_nodelist * ndlp, void *arg, |
991 | uint32_t evt) |
992 | { |
993 | struct lpfc_iocbq *cmdiocb; |
994 | |
995 | cmdiocb = (struct lpfc_iocbq *) arg; |
996 | |
997 | lpfc_rcv_plogi(phba, ndlp, cmdiocb); |
998 | return (ndlp->nlp_state); |
999 | } |
1000 | |
1001 | static uint32_t |
1002 | lpfc_rcv_prli_reglogin_issue(struct lpfc_hba * phba, |
1003 | struct lpfc_nodelist * ndlp, void *arg, |
1004 | uint32_t evt) |
1005 | { |
1006 | struct lpfc_iocbq *cmdiocb; |
1007 | |
1008 | cmdiocb = (struct lpfc_iocbq *) arg; |
1009 | |
1010 | lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp); |
1011 | return (ndlp->nlp_state); |
1012 | } |
1013 | |
1014 | static uint32_t |
1015 | lpfc_rcv_logo_reglogin_issue(struct lpfc_hba * phba, |
1016 | struct lpfc_nodelist * ndlp, void *arg, |
1017 | uint32_t evt) |
1018 | { |
1019 | struct lpfc_iocbq *cmdiocb; |
1020 | |
1021 | cmdiocb = (struct lpfc_iocbq *) arg; |
1022 | |
1023 | lpfc_rcv_logo(phba, ndlp, cmdiocb); |
1024 | return (ndlp->nlp_state); |
1025 | } |
1026 | |
1027 | static uint32_t |
1028 | lpfc_rcv_padisc_reglogin_issue(struct lpfc_hba * phba, |
1029 | struct lpfc_nodelist * ndlp, void *arg, |
1030 | uint32_t evt) |
1031 | { |
1032 | struct lpfc_iocbq *cmdiocb; |
1033 | |
1034 | cmdiocb = (struct lpfc_iocbq *) arg; |
1035 | |
1036 | lpfc_rcv_padisc(phba, ndlp, cmdiocb); |
1037 | return (ndlp->nlp_state); |
1038 | } |
1039 | |
1040 | static uint32_t |
1041 | lpfc_rcv_prlo_reglogin_issue(struct lpfc_hba * phba, |
1042 | struct lpfc_nodelist * ndlp, void *arg, |
1043 | uint32_t evt) |
1044 | { |
1045 | struct lpfc_iocbq *cmdiocb; |
1046 | |
1047 | cmdiocb = (struct lpfc_iocbq *) arg; |
1048 | lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); |
1049 | return (ndlp->nlp_state); |
1050 | } |
1051 | |
1052 | static uint32_t |
1053 | lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_hba * phba, |
1054 | struct lpfc_nodelist * ndlp, |
1055 | void *arg, uint32_t evt) |
1056 | { |
1057 | LPFC_MBOXQ_t *pmb; |
1058 | MAILBOX_t *mb; |
1059 | uint32_t did; |
1060 | |
1061 | pmb = (LPFC_MBOXQ_t *) arg; |
1062 | mb = &pmb->mb; |
1063 | did = mb->un.varWords[1]; |
1064 | if (mb->mbxStatus) { |
1065 | /* RegLogin failed */ |
1066 | lpfc_printf_log(phba, |
1067 | KERN_ERR, |
1068 | LOG_DISCOVERY, |
1069 | "%d:0246 RegLogin failed Data: x%x x%x x%x\n", |
1070 | phba->brd_no, |
1071 | did, mb->mbxStatus, phba->hba_state); |
1072 | |
1073 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1); |
1074 | spin_lock_irq(phba->host->host_lock); |
1075 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
1076 | spin_unlock_irq(phba->host->host_lock); |
1077 | |
1078 | lpfc_issue_els_logo(phba, ndlp, 0); |
1079 | /* Put ndlp in npr list set plogi timer for 1 sec */ |
1080 | ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI; |
1081 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
1082 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
1083 | return (ndlp->nlp_state); |
1084 | } |
1085 | |
1086 | if (ndlp->nlp_rpi != 0) |
1087 | lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi); |
1088 | |
1089 | ndlp->nlp_rpi = mb->un.varWords[0]; |
1090 | lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi); |
1091 | |
1092 | /* Only if we are not a fabric nport do we issue PRLI */ |
1093 | if (!(ndlp->nlp_type & NLP_FABRIC)) { |
1094 | ndlp->nlp_state = NLP_STE_PRLI_ISSUE; |
1095 | lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST); |
1096 | lpfc_issue_els_prli(phba, ndlp, 0); |
1097 | } else { |
1098 | ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; |
1099 | lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); |
1100 | } |
1101 | return (ndlp->nlp_state); |
1102 | } |
1103 | |
1104 | static uint32_t |
1105 | lpfc_device_rm_reglogin_issue(struct lpfc_hba * phba, |
1106 | struct lpfc_nodelist * ndlp, void *arg, |
1107 | uint32_t evt) |
1108 | { |
1109 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
1110 | return (NLP_STE_FREED_NODE); |
1111 | } |
1112 | |
1113 | static uint32_t |
1114 | lpfc_device_recov_reglogin_issue(struct lpfc_hba * phba, |
1115 | struct lpfc_nodelist * ndlp, void *arg, |
1116 | uint32_t evt) |
1117 | { |
1118 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
1119 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
1120 | spin_lock_irq(phba->host->host_lock); |
1121 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
1122 | spin_unlock_irq(phba->host->host_lock); |
1123 | return (ndlp->nlp_state); |
1124 | } |
1125 | |
1126 | static uint32_t |
1127 | lpfc_rcv_plogi_prli_issue(struct lpfc_hba * phba, |
1128 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1129 | { |
1130 | struct lpfc_iocbq *cmdiocb; |
1131 | |
1132 | cmdiocb = (struct lpfc_iocbq *) arg; |
1133 | |
1134 | lpfc_rcv_plogi(phba, ndlp, cmdiocb); |
1135 | return (ndlp->nlp_state); |
1136 | } |
1137 | |
1138 | static uint32_t |
1139 | lpfc_rcv_prli_prli_issue(struct lpfc_hba * phba, |
1140 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1141 | { |
1142 | struct lpfc_iocbq *cmdiocb; |
1143 | |
1144 | cmdiocb = (struct lpfc_iocbq *) arg; |
1145 | |
1146 | lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp); |
1147 | return (ndlp->nlp_state); |
1148 | } |
1149 | |
1150 | static uint32_t |
1151 | lpfc_rcv_logo_prli_issue(struct lpfc_hba * phba, |
1152 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1153 | { |
1154 | struct lpfc_iocbq *cmdiocb; |
1155 | |
1156 | cmdiocb = (struct lpfc_iocbq *) arg; |
1157 | |
1158 | /* Software abort outstanding PRLI before sending acc */ |
1159 | lpfc_els_abort(phba, ndlp, 1); |
1160 | |
1161 | lpfc_rcv_logo(phba, ndlp, cmdiocb); |
1162 | return (ndlp->nlp_state); |
1163 | } |
1164 | |
1165 | static uint32_t |
1166 | lpfc_rcv_padisc_prli_issue(struct lpfc_hba * phba, |
1167 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1168 | { |
1169 | struct lpfc_iocbq *cmdiocb; |
1170 | |
1171 | cmdiocb = (struct lpfc_iocbq *) arg; |
1172 | |
1173 | lpfc_rcv_padisc(phba, ndlp, cmdiocb); |
1174 | return (ndlp->nlp_state); |
1175 | } |
1176 | |
1177 | /* This routine is envoked when we rcv a PRLO request from a nport |
1178 | * we are logged into. We should send back a PRLO rsp setting the |
1179 | * appropriate bits. |
1180 | * NEXT STATE = PRLI_ISSUE |
1181 | */ |
1182 | static uint32_t |
1183 | lpfc_rcv_prlo_prli_issue(struct lpfc_hba * phba, |
1184 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1185 | { |
1186 | struct lpfc_iocbq *cmdiocb; |
1187 | |
1188 | cmdiocb = (struct lpfc_iocbq *) arg; |
1189 | lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); |
1190 | return (ndlp->nlp_state); |
1191 | } |
1192 | |
1193 | static uint32_t |
1194 | lpfc_cmpl_prli_prli_issue(struct lpfc_hba * phba, |
1195 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1196 | { |
1197 | struct lpfc_iocbq *cmdiocb, *rspiocb; |
1198 | IOCB_t *irsp; |
1199 | PRLI *npr; |
1200 | |
1201 | cmdiocb = (struct lpfc_iocbq *) arg; |
1202 | rspiocb = cmdiocb->context_un.rsp_iocb; |
1203 | npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); |
1204 | |
1205 | irsp = &rspiocb->iocb; |
1206 | if (irsp->ulpStatus) { |
1207 | ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; |
1208 | lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); |
1209 | return (ndlp->nlp_state); |
1210 | } |
1211 | |
1212 | /* Check out PRLI rsp */ |
1213 | ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); |
1214 | ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; |
1215 | if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) && |
1216 | (npr->prliType == PRLI_FCP_TYPE)) { |
1217 | if (npr->initiatorFunc) |
1218 | ndlp->nlp_type |= NLP_FCP_INITIATOR; |
1219 | if (npr->targetFunc) |
1220 | ndlp->nlp_type |= NLP_FCP_TARGET; |
1221 | if (npr->Retry) |
1222 | ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; |
1223 | } |
1224 | |
1225 | ndlp->nlp_state = NLP_STE_MAPPED_NODE; |
1226 | lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST); |
1227 | return (ndlp->nlp_state); |
1228 | } |
1229 | |
1230 | /*! lpfc_device_rm_prli_issue |
1231 | * |
1232 | * \pre |
1233 | * \post |
1234 | * \param phba |
1235 | * \param ndlp |
1236 | * \param arg |
1237 | * \param evt |
1238 | * \return uint32_t |
1239 | * |
1240 | * \b Description: |
1241 | * This routine is envoked when we a request to remove a nport we are in the |
1242 | * process of PRLIing. We should software abort outstanding prli, unreg |
1243 | * login, send a logout. We will change node state to UNUSED_NODE, put it |
1244 | * on plogi list so it can be freed when LOGO completes. |
1245 | * |
1246 | */ |
1247 | static uint32_t |
1248 | lpfc_device_rm_prli_issue(struct lpfc_hba * phba, |
1249 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1250 | { |
1251 | /* software abort outstanding PRLI */ |
1252 | lpfc_els_abort(phba, ndlp, 1); |
1253 | |
1254 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
1255 | return (NLP_STE_FREED_NODE); |
1256 | } |
1257 | |
1258 | |
1259 | /*! lpfc_device_recov_prli_issue |
1260 | * |
1261 | * \pre |
1262 | * \post |
1263 | * \param phba |
1264 | * \param ndlp |
1265 | * \param arg |
1266 | * \param evt |
1267 | * \return uint32_t |
1268 | * |
1269 | * \b Description: |
1270 | * The routine is envoked when the state of a device is unknown, like |
1271 | * during a link down. We should remove the nodelist entry from the |
1272 | * unmapped list, issue a UNREG_LOGIN, do a software abort of the |
1273 | * outstanding PRLI command, then free the node entry. |
1274 | */ |
1275 | static uint32_t |
1276 | lpfc_device_recov_prli_issue(struct lpfc_hba * phba, |
1277 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1278 | { |
1279 | /* software abort outstanding PRLI */ |
1280 | lpfc_els_abort(phba, ndlp, 1); |
1281 | |
1282 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
1283 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
1284 | spin_lock_irq(phba->host->host_lock); |
1285 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
1286 | spin_unlock_irq(phba->host->host_lock); |
1287 | return (ndlp->nlp_state); |
1288 | } |
1289 | |
1290 | static uint32_t |
1291 | lpfc_rcv_plogi_unmap_node(struct lpfc_hba * phba, |
1292 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1293 | { |
1294 | struct lpfc_iocbq *cmdiocb; |
1295 | |
1296 | cmdiocb = (struct lpfc_iocbq *) arg; |
1297 | |
1298 | lpfc_rcv_plogi(phba, ndlp, cmdiocb); |
1299 | return (ndlp->nlp_state); |
1300 | } |
1301 | |
1302 | static uint32_t |
1303 | lpfc_rcv_prli_unmap_node(struct lpfc_hba * phba, |
1304 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1305 | { |
1306 | struct lpfc_iocbq *cmdiocb; |
1307 | |
1308 | cmdiocb = (struct lpfc_iocbq *) arg; |
1309 | |
1310 | lpfc_rcv_prli(phba, ndlp, cmdiocb); |
1311 | lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp); |
1312 | return (ndlp->nlp_state); |
1313 | } |
1314 | |
1315 | static uint32_t |
1316 | lpfc_rcv_logo_unmap_node(struct lpfc_hba * phba, |
1317 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1318 | { |
1319 | struct lpfc_iocbq *cmdiocb; |
1320 | |
1321 | cmdiocb = (struct lpfc_iocbq *) arg; |
1322 | |
1323 | lpfc_rcv_logo(phba, ndlp, cmdiocb); |
1324 | return (ndlp->nlp_state); |
1325 | } |
1326 | |
1327 | static uint32_t |
1328 | lpfc_rcv_padisc_unmap_node(struct lpfc_hba * phba, |
1329 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1330 | { |
1331 | struct lpfc_iocbq *cmdiocb; |
1332 | |
1333 | cmdiocb = (struct lpfc_iocbq *) arg; |
1334 | |
1335 | lpfc_rcv_padisc(phba, ndlp, cmdiocb); |
1336 | return (ndlp->nlp_state); |
1337 | } |
1338 | |
1339 | static uint32_t |
1340 | lpfc_rcv_prlo_unmap_node(struct lpfc_hba * phba, |
1341 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1342 | { |
1343 | struct lpfc_iocbq *cmdiocb; |
1344 | |
1345 | cmdiocb = (struct lpfc_iocbq *) arg; |
1346 | |
1347 | /* Treat like rcv logo */ |
1348 | lpfc_rcv_logo(phba, ndlp, cmdiocb); |
1349 | return (ndlp->nlp_state); |
1350 | } |
1351 | |
1352 | static uint32_t |
1353 | lpfc_device_recov_unmap_node(struct lpfc_hba * phba, |
1354 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1355 | { |
1356 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
1357 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
1358 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
1359 | lpfc_disc_set_adisc(phba, ndlp); |
1360 | |
1361 | return (ndlp->nlp_state); |
1362 | } |
1363 | |
1364 | static uint32_t |
1365 | lpfc_rcv_plogi_mapped_node(struct lpfc_hba * phba, |
1366 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1367 | { |
1368 | struct lpfc_iocbq *cmdiocb; |
1369 | |
1370 | cmdiocb = (struct lpfc_iocbq *) arg; |
1371 | |
1372 | lpfc_rcv_plogi(phba, ndlp, cmdiocb); |
1373 | return (ndlp->nlp_state); |
1374 | } |
1375 | |
1376 | static uint32_t |
1377 | lpfc_rcv_prli_mapped_node(struct lpfc_hba * phba, |
1378 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1379 | { |
1380 | struct lpfc_iocbq *cmdiocb; |
1381 | |
1382 | cmdiocb = (struct lpfc_iocbq *) arg; |
1383 | |
1384 | lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp); |
1385 | return (ndlp->nlp_state); |
1386 | } |
1387 | |
1388 | static uint32_t |
1389 | lpfc_rcv_logo_mapped_node(struct lpfc_hba * phba, |
1390 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1391 | { |
1392 | struct lpfc_iocbq *cmdiocb; |
1393 | |
1394 | cmdiocb = (struct lpfc_iocbq *) arg; |
1395 | |
1396 | lpfc_rcv_logo(phba, ndlp, cmdiocb); |
1397 | return (ndlp->nlp_state); |
1398 | } |
1399 | |
1400 | static uint32_t |
1401 | lpfc_rcv_padisc_mapped_node(struct lpfc_hba * phba, |
1402 | struct lpfc_nodelist * ndlp, void *arg, |
1403 | uint32_t evt) |
1404 | { |
1405 | struct lpfc_iocbq *cmdiocb; |
1406 | |
1407 | cmdiocb = (struct lpfc_iocbq *) arg; |
1408 | |
1409 | lpfc_rcv_padisc(phba, ndlp, cmdiocb); |
1410 | return (ndlp->nlp_state); |
1411 | } |
1412 | |
1413 | static uint32_t |
1414 | lpfc_rcv_prlo_mapped_node(struct lpfc_hba * phba, |
1415 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1416 | { |
1417 | struct lpfc_iocbq *cmdiocb; |
1418 | |
1419 | cmdiocb = (struct lpfc_iocbq *) arg; |
1420 | |
1421 | /* flush the target */ |
1422 | spin_lock_irq(phba->host->host_lock); |
1423 | lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring], |
1424 | ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT); |
1425 | spin_unlock_irq(phba->host->host_lock); |
1426 | |
1427 | /* Treat like rcv logo */ |
1428 | lpfc_rcv_logo(phba, ndlp, cmdiocb); |
1429 | return (ndlp->nlp_state); |
1430 | } |
1431 | |
1432 | static uint32_t |
1433 | lpfc_device_recov_mapped_node(struct lpfc_hba * phba, |
1434 | struct lpfc_nodelist * ndlp, void *arg, |
1435 | uint32_t evt) |
1436 | { |
1437 | ndlp->nlp_state = NLP_STE_NPR_NODE; |
1438 | lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); |
1439 | spin_lock_irq(phba->host->host_lock); |
1440 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
1441 | spin_unlock_irq(phba->host->host_lock); |
1442 | lpfc_disc_set_adisc(phba, ndlp); |
1443 | return (ndlp->nlp_state); |
1444 | } |
1445 | |
1446 | static uint32_t |
1447 | lpfc_rcv_plogi_npr_node(struct lpfc_hba * phba, |
1448 | struct lpfc_nodelist * ndlp, void *arg, |
1449 | uint32_t evt) |
1450 | { |
1451 | struct lpfc_iocbq *cmdiocb; |
1452 | |
1453 | cmdiocb = (struct lpfc_iocbq *) arg; |
1454 | |
1455 | /* Ignore PLOGI if we have an outstanding LOGO */ |
1456 | if (ndlp->nlp_flag & NLP_LOGO_SND) { |
1457 | return (ndlp->nlp_state); |
1458 | } |
1459 | |
1460 | if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) { |
1461 | spin_lock_irq(phba->host->host_lock); |
1462 | ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); |
1463 | spin_unlock_irq(phba->host->host_lock); |
1464 | return (ndlp->nlp_state); |
1465 | } |
1466 | |
1467 | /* send PLOGI immediately, move to PLOGI issue state */ |
1468 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { |
1469 | ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; |
1470 | lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); |
1471 | lpfc_issue_els_plogi(phba, ndlp, 0); |
1472 | } |
1473 | return (ndlp->nlp_state); |
1474 | } |
1475 | |
1476 | static uint32_t |
1477 | lpfc_rcv_prli_npr_node(struct lpfc_hba * phba, |
1478 | struct lpfc_nodelist * ndlp, void *arg, |
1479 | uint32_t evt) |
1480 | { |
1481 | struct lpfc_iocbq *cmdiocb; |
1482 | struct ls_rjt stat; |
1483 | |
1484 | cmdiocb = (struct lpfc_iocbq *) arg; |
1485 | |
1486 | memset(&stat, 0, sizeof (struct ls_rjt)); |
1487 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; |
1488 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
1489 | lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp); |
1490 | |
1491 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { |
1492 | if (ndlp->nlp_flag & NLP_NPR_ADISC) { |
1493 | ndlp->nlp_state = NLP_STE_ADISC_ISSUE; |
1494 | lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST); |
1495 | lpfc_issue_els_adisc(phba, ndlp, 0); |
1496 | } else { |
1497 | ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; |
1498 | lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); |
1499 | lpfc_issue_els_plogi(phba, ndlp, 0); |
1500 | } |
1501 | } |
1502 | return (ndlp->nlp_state); |
1503 | } |
1504 | |
1505 | static uint32_t |
1506 | lpfc_rcv_logo_npr_node(struct lpfc_hba * phba, |
1507 | struct lpfc_nodelist * ndlp, void *arg, |
1508 | uint32_t evt) |
1509 | { |
1510 | struct lpfc_iocbq *cmdiocb; |
1511 | |
1512 | cmdiocb = (struct lpfc_iocbq *) arg; |
1513 | |
1514 | lpfc_rcv_logo(phba, ndlp, cmdiocb); |
1515 | return (ndlp->nlp_state); |
1516 | } |
1517 | |
1518 | static uint32_t |
1519 | lpfc_rcv_padisc_npr_node(struct lpfc_hba * phba, |
1520 | struct lpfc_nodelist * ndlp, void *arg, |
1521 | uint32_t evt) |
1522 | { |
1523 | struct lpfc_iocbq *cmdiocb; |
1524 | |
1525 | cmdiocb = (struct lpfc_iocbq *) arg; |
1526 | |
1527 | lpfc_rcv_padisc(phba, ndlp, cmdiocb); |
1528 | |
1529 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { |
1530 | if (ndlp->nlp_flag & NLP_NPR_ADISC) { |
1531 | ndlp->nlp_state = NLP_STE_ADISC_ISSUE; |
1532 | lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST); |
1533 | lpfc_issue_els_adisc(phba, ndlp, 0); |
1534 | } else { |
1535 | ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; |
1536 | lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); |
1537 | lpfc_issue_els_plogi(phba, ndlp, 0); |
1538 | } |
1539 | } |
1540 | return (ndlp->nlp_state); |
1541 | } |
1542 | |
1543 | static uint32_t |
1544 | lpfc_rcv_prlo_npr_node(struct lpfc_hba * phba, |
1545 | struct lpfc_nodelist * ndlp, void *arg, |
1546 | uint32_t evt) |
1547 | { |
1548 | struct lpfc_iocbq *cmdiocb; |
1549 | |
1550 | cmdiocb = (struct lpfc_iocbq *) arg; |
1551 | |
1552 | lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); |
1553 | |
1554 | if (ndlp->nlp_flag & NLP_DELAY_TMO) { |
1555 | if (ndlp->nlp_last_elscmd == (unsigned long)ELS_CMD_PLOGI) { |
1556 | return (ndlp->nlp_state); |
1557 | } else { |
1558 | spin_lock_irq(phba->host->host_lock); |
1559 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; |
1560 | spin_unlock_irq(phba->host->host_lock); |
1561 | del_timer_sync(&ndlp->nlp_delayfunc); |
1562 | if (!list_empty(&ndlp->els_retry_evt.evt_listp)) |
1563 | list_del_init(&ndlp->els_retry_evt.evt_listp); |
1564 | } |
1565 | } |
1566 | |
1567 | ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; |
1568 | lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); |
1569 | lpfc_issue_els_plogi(phba, ndlp, 0); |
1570 | return (ndlp->nlp_state); |
1571 | } |
1572 | |
1573 | static uint32_t |
1574 | lpfc_cmpl_logo_npr_node(struct lpfc_hba * phba, |
1575 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1576 | { |
1577 | lpfc_unreg_rpi(phba, ndlp); |
1578 | /* This routine does nothing, just return the current state */ |
1579 | return (ndlp->nlp_state); |
1580 | } |
1581 | |
1582 | static uint32_t |
1583 | lpfc_cmpl_reglogin_npr_node(struct lpfc_hba * phba, |
1584 | struct lpfc_nodelist * ndlp, void *arg, |
1585 | uint32_t evt) |
1586 | { |
1587 | LPFC_MBOXQ_t *pmb; |
1588 | MAILBOX_t *mb; |
1589 | |
1590 | pmb = (LPFC_MBOXQ_t *) arg; |
1591 | mb = &pmb->mb; |
1592 | |
1593 | /* save rpi */ |
1594 | if (ndlp->nlp_rpi != 0) |
1595 | lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi); |
1596 | |
1597 | ndlp->nlp_rpi = mb->un.varWords[0]; |
1598 | lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi); |
1599 | |
1600 | return (ndlp->nlp_state); |
1601 | } |
1602 | |
1603 | static uint32_t |
1604 | lpfc_device_rm_npr_node(struct lpfc_hba * phba, |
1605 | struct lpfc_nodelist * ndlp, void *arg, |
1606 | uint32_t evt) |
1607 | { |
1608 | lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); |
1609 | return (NLP_STE_FREED_NODE); |
1610 | } |
1611 | |
1612 | static uint32_t |
1613 | lpfc_device_recov_npr_node(struct lpfc_hba * phba, |
1614 | struct lpfc_nodelist * ndlp, void *arg, |
1615 | uint32_t evt) |
1616 | { |
1617 | spin_lock_irq(phba->host->host_lock); |
1618 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
1619 | spin_unlock_irq(phba->host->host_lock); |
1620 | return (ndlp->nlp_state); |
1621 | } |
1622 | |
1623 | |
1624 | /* This next section defines the NPort Discovery State Machine */ |
1625 | |
1626 | /* There are 4 different double linked lists nodelist entries can reside on. |
1627 | * The plogi list and adisc list are used when Link Up discovery or RSCN |
1628 | * processing is needed. Each list holds the nodes that we will send PLOGI |
1629 | * or ADISC on. These lists will keep track of what nodes will be effected |
1630 | * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). |
1631 | * The unmapped_list will contain all nodes that we have successfully logged |
1632 | * into at the Fibre Channel level. The mapped_list will contain all nodes |
1633 | * that are mapped FCP targets. |
1634 | */ |
1635 | /* |
1636 | * The bind list is a list of undiscovered (potentially non-existent) nodes |
1637 | * that we have saved binding information on. This information is used when |
1638 | * nodes transition from the unmapped to the mapped list. |
1639 | */ |
1640 | /* For UNUSED_NODE state, the node has just been allocated . |
1641 | * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on |
1642 | * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list |
1643 | * and put on the unmapped list. For ADISC processing, the node is taken off |
1644 | * the ADISC list and placed on either the mapped or unmapped list (depending |
1645 | * on its previous state). Once on the unmapped list, a PRLI is issued and the |
1646 | * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is |
1647 | * changed to UNMAPPED_NODE. If the completion indicates a mapped |
1648 | * node, the node is taken off the unmapped list. The binding list is checked |
1649 | * for a valid binding, or a binding is automatically assigned. If binding |
1650 | * assignment is unsuccessful, the node is left on the unmapped list. If |
1651 | * binding assignment is successful, the associated binding list entry (if |
1652 | * any) is removed, and the node is placed on the mapped list. |
1653 | */ |
1654 | /* |
1655 | * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped |
1656 | * lists will receive a DEVICE_RECOVERY event. If the linkdown or nodev timers |
1657 | * expire, all effected nodes will receive a DEVICE_RM event. |
1658 | */ |
1659 | /* |
1660 | * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists |
1661 | * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap |
1662 | * check, additional nodes may be added or removed (via DEVICE_RM) to / from |
1663 | * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, |
1664 | * we will first process the ADISC list. 32 entries are processed initially and |
1665 | * ADISC is initited for each one. Completions / Events for each node are |
1666 | * funnelled thru the state machine. As each node finishes ADISC processing, it |
1667 | * starts ADISC for any nodes waiting for ADISC processing. If no nodes are |
1668 | * waiting, and the ADISC list count is identically 0, then we are done. For |
1669 | * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we |
1670 | * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI |
1671 | * list. 32 entries are processed initially and PLOGI is initited for each one. |
1672 | * Completions / Events for each node are funnelled thru the state machine. As |
1673 | * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting |
1674 | * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is |
1675 | * indentically 0, then we are done. We have now completed discovery / RSCN |
1676 | * handling. Upon completion, ALL nodes should be on either the mapped or |
1677 | * unmapped lists. |
1678 | */ |
1679 | |
1680 | static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) |
1681 | (struct lpfc_hba *, struct lpfc_nodelist *, void *, uint32_t) = { |
1682 | /* Action routine Event Current State */ |
1683 | lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ |
1684 | lpfc_rcv_els_unused_node, /* RCV_PRLI */ |
1685 | lpfc_rcv_logo_unused_node, /* RCV_LOGO */ |
1686 | lpfc_rcv_els_unused_node, /* RCV_ADISC */ |
1687 | lpfc_rcv_els_unused_node, /* RCV_PDISC */ |
1688 | lpfc_rcv_els_unused_node, /* RCV_PRLO */ |
1689 | lpfc_disc_illegal, /* CMPL_PLOGI */ |
1690 | lpfc_disc_illegal, /* CMPL_PRLI */ |
1691 | lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ |
1692 | lpfc_disc_illegal, /* CMPL_ADISC */ |
1693 | lpfc_disc_illegal, /* CMPL_REG_LOGIN */ |
1694 | lpfc_device_rm_unused_node, /* DEVICE_RM */ |
1695 | lpfc_disc_illegal, /* DEVICE_RECOVERY */ |
1696 | |
1697 | lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ |
1698 | lpfc_rcv_els_plogi_issue, /* RCV_PRLI */ |
1699 | lpfc_rcv_els_plogi_issue, /* RCV_LOGO */ |
1700 | lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ |
1701 | lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ |
1702 | lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ |
1703 | lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ |
1704 | lpfc_disc_illegal, /* CMPL_PRLI */ |
1705 | lpfc_disc_illegal, /* CMPL_LOGO */ |
1706 | lpfc_disc_illegal, /* CMPL_ADISC */ |
1707 | lpfc_disc_illegal, /* CMPL_REG_LOGIN */ |
1708 | lpfc_device_rm_plogi_issue, /* DEVICE_RM */ |
1709 | lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ |
1710 | |
1711 | lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ |
1712 | lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ |
1713 | lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ |
1714 | lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ |
1715 | lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ |
1716 | lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ |
1717 | lpfc_disc_illegal, /* CMPL_PLOGI */ |
1718 | lpfc_disc_illegal, /* CMPL_PRLI */ |
1719 | lpfc_disc_illegal, /* CMPL_LOGO */ |
1720 | lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ |
1721 | lpfc_disc_illegal, /* CMPL_REG_LOGIN */ |
1722 | lpfc_device_rm_adisc_issue, /* DEVICE_RM */ |
1723 | lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ |
1724 | |
1725 | lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ |
1726 | lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ |
1727 | lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ |
1728 | lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ |
1729 | lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ |
1730 | lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ |
1731 | lpfc_disc_illegal, /* CMPL_PLOGI */ |
1732 | lpfc_disc_illegal, /* CMPL_PRLI */ |
1733 | lpfc_disc_illegal, /* CMPL_LOGO */ |
1734 | lpfc_disc_illegal, /* CMPL_ADISC */ |
1735 | lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ |
1736 | lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ |
1737 | lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ |
1738 | |
1739 | lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ |
1740 | lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ |
1741 | lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ |
1742 | lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ |
1743 | lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ |
1744 | lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ |
1745 | lpfc_disc_illegal, /* CMPL_PLOGI */ |
1746 | lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ |
1747 | lpfc_disc_illegal, /* CMPL_LOGO */ |
1748 | lpfc_disc_illegal, /* CMPL_ADISC */ |
1749 | lpfc_disc_illegal, /* CMPL_REG_LOGIN */ |
1750 | lpfc_device_rm_prli_issue, /* DEVICE_RM */ |
1751 | lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ |
1752 | |
1753 | lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ |
1754 | lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ |
1755 | lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ |
1756 | lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ |
1757 | lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ |
1758 | lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ |
1759 | lpfc_disc_illegal, /* CMPL_PLOGI */ |
1760 | lpfc_disc_illegal, /* CMPL_PRLI */ |
1761 | lpfc_disc_illegal, /* CMPL_LOGO */ |
1762 | lpfc_disc_illegal, /* CMPL_ADISC */ |
1763 | lpfc_disc_illegal, /* CMPL_REG_LOGIN */ |
1764 | lpfc_disc_illegal, /* DEVICE_RM */ |
1765 | lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ |
1766 | |
1767 | lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ |
1768 | lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ |
1769 | lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ |
1770 | lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ |
1771 | lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ |
1772 | lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ |
1773 | lpfc_disc_illegal, /* CMPL_PLOGI */ |
1774 | lpfc_disc_illegal, /* CMPL_PRLI */ |
1775 | lpfc_disc_illegal, /* CMPL_LOGO */ |
1776 | lpfc_disc_illegal, /* CMPL_ADISC */ |
1777 | lpfc_disc_illegal, /* CMPL_REG_LOGIN */ |
1778 | lpfc_disc_illegal, /* DEVICE_RM */ |
1779 | lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ |
1780 | |
1781 | lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ |
1782 | lpfc_rcv_prli_npr_node, /* RCV_PRLI */ |
1783 | lpfc_rcv_logo_npr_node, /* RCV_LOGO */ |
1784 | lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ |
1785 | lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ |
1786 | lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ |
1787 | lpfc_disc_noop, /* CMPL_PLOGI */ |
1788 | lpfc_disc_noop, /* CMPL_PRLI */ |
1789 | lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ |
1790 | lpfc_disc_noop, /* CMPL_ADISC */ |
1791 | lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ |
1792 | lpfc_device_rm_npr_node, /* DEVICE_RM */ |
1793 | lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ |
1794 | }; |
1795 | |
1796 | int |
1797 | lpfc_disc_state_machine(struct lpfc_hba * phba, |
1798 | struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) |
1799 | { |
1800 | uint32_t cur_state, rc; |
1801 | uint32_t(*func) (struct lpfc_hba *, struct lpfc_nodelist *, void *, |
1802 | uint32_t); |
1803 | |
1804 | ndlp->nlp_disc_refcnt++; |
1805 | cur_state = ndlp->nlp_state; |
1806 | |
1807 | /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ |
1808 | lpfc_printf_log(phba, |
1809 | KERN_INFO, |
1810 | LOG_DISCOVERY, |
1811 | "%d:0211 DSM in event x%x on NPort x%x in state %d " |
1812 | "Data: x%x\n", |
1813 | phba->brd_no, |
1814 | evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag); |
1815 | |
1816 | func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; |
1817 | rc = (func) (phba, ndlp, arg, evt); |
1818 | |
1819 | /* DSM out state <rc> on NPort <nlp_DID> */ |
1820 | lpfc_printf_log(phba, |
1821 | KERN_INFO, |
1822 | LOG_DISCOVERY, |
1823 | "%d:0212 DSM out state %d on NPort x%x Data: x%x\n", |
1824 | phba->brd_no, |
1825 | rc, ndlp->nlp_DID, ndlp->nlp_flag); |
1826 | |
1827 | ndlp->nlp_disc_refcnt--; |
1828 | |
1829 | /* Check to see if ndlp removal is deferred */ |
1830 | if ((ndlp->nlp_disc_refcnt == 0) |
1831 | && (ndlp->nlp_flag & NLP_DELAY_REMOVE)) { |
1832 | spin_lock_irq(phba->host->host_lock); |
1833 | ndlp->nlp_flag &= ~NLP_DELAY_REMOVE; |
1834 | spin_unlock_irq(phba->host->host_lock); |
1835 | lpfc_nlp_remove(phba, ndlp); |
1836 | return (NLP_STE_FREED_NODE); |
1837 | } |
1838 | if (rc == NLP_STE_FREED_NODE) |
1839 | return (NLP_STE_FREED_NODE); |
1840 | ndlp->nlp_state = rc; |
1841 | return (rc); |
1842 | } |