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[SCSI] lpfc: Remove $Id$ keyword strings.
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
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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
dea3101e 21#include <linux/blkdev.h>
22#include <linux/pci.h>
23#include <linux/interrupt.h>
24
25#include <scsi/scsi_device.h>
26#include <scsi/scsi_host.h>
27#include <scsi/scsi_transport_fc.h>
28
29#include "lpfc_hw.h"
30#include "lpfc_sli.h"
31#include "lpfc_disc.h"
32#include "lpfc_scsi.h"
33#include "lpfc.h"
34#include "lpfc_logmsg.h"
35#include "lpfc_crtn.h"
36
37
38/* Called to verify a rcv'ed ADISC was intended for us. */
39static int
40lpfc_check_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
41 struct lpfc_name * nn, struct lpfc_name * pn)
42{
43 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
44 * table entry for that node.
45 */
46 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)) != 0)
47 return (0);
48
49 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)) != 0)
50 return (0);
51
52 /* we match, return success */
53 return (1);
54}
55
56
57int
58lpfc_check_sparm(struct lpfc_hba * phba,
59 struct lpfc_nodelist * ndlp, struct serv_parm * sp,
60 uint32_t class)
61{
62 volatile struct serv_parm *hsp = &phba->fc_sparam;
63 /* First check for supported version */
64
65 /* Next check for class validity */
66 if (sp->cls1.classValid) {
67
68 if (sp->cls1.rcvDataSizeMsb > hsp->cls1.rcvDataSizeMsb)
69 sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb;
70 if (sp->cls1.rcvDataSizeLsb > hsp->cls1.rcvDataSizeLsb)
71 sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb;
72 } else if (class == CLASS1) {
73 return (0);
74 }
75
76 if (sp->cls2.classValid) {
77
78 if (sp->cls2.rcvDataSizeMsb > hsp->cls2.rcvDataSizeMsb)
79 sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb;
80 if (sp->cls2.rcvDataSizeLsb > hsp->cls2.rcvDataSizeLsb)
81 sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb;
82 } else if (class == CLASS2) {
83 return (0);
84 }
85
86 if (sp->cls3.classValid) {
87
88 if (sp->cls3.rcvDataSizeMsb > hsp->cls3.rcvDataSizeMsb)
89 sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb;
90 if (sp->cls3.rcvDataSizeLsb > hsp->cls3.rcvDataSizeLsb)
91 sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb;
92 } else if (class == CLASS3) {
93 return (0);
94 }
95
96 if (sp->cmn.bbRcvSizeMsb > hsp->cmn.bbRcvSizeMsb)
97 sp->cmn.bbRcvSizeMsb = hsp->cmn.bbRcvSizeMsb;
98 if (sp->cmn.bbRcvSizeLsb > hsp->cmn.bbRcvSizeLsb)
99 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
100
101 /* If check is good, copy wwpn wwnn into ndlp */
102 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
103 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
104 return (1);
105}
106
107static void *
108lpfc_check_elscmpl_iocb(struct lpfc_hba * phba,
109 struct lpfc_iocbq *cmdiocb,
110 struct lpfc_iocbq *rspiocb)
111{
112 struct lpfc_dmabuf *pcmd, *prsp;
113 uint32_t *lp;
114 void *ptr = NULL;
115 IOCB_t *irsp;
116
117 irsp = &rspiocb->iocb;
118 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
119
120 /* For lpfc_els_abort, context2 could be zero'ed to delay
121 * freeing associated memory till after ABTS completes.
122 */
123 if (pcmd) {
124 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
125 list);
126 if (prsp) {
127 lp = (uint32_t *) prsp->virt;
128 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
129 }
130 }
131 else {
132 /* Force ulpStatus error since we are returning NULL ptr */
133 if (!(irsp->ulpStatus)) {
134 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
135 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
136 }
137 ptr = NULL;
138 }
139 return (ptr);
140}
141
142
143/*
144 * Free resources / clean up outstanding I/Os
145 * associated with a LPFC_NODELIST entry. This
146 * routine effectively results in a "software abort".
147 */
148int
149lpfc_els_abort(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
150 int send_abts)
151{
152 struct lpfc_sli *psli;
153 struct lpfc_sli_ring *pring;
154 struct lpfc_iocbq *iocb, *next_iocb;
155 IOCB_t *icmd;
156 int found = 0;
157
158 /* Abort outstanding I/O on NPort <nlp_DID> */
159 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
160 "%d:0201 Abort outstanding I/O on NPort x%x "
161 "Data: x%x x%x x%x\n",
162 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
163 ndlp->nlp_state, ndlp->nlp_rpi);
164
165 psli = &phba->sli;
166 pring = &psli->ring[LPFC_ELS_RING];
167
168 /* First check the txq */
169 do {
170 found = 0;
171 spin_lock_irq(phba->host->host_lock);
172 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
173 /* Check to see if iocb matches the nport we are looking
174 for */
175 if ((lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))) {
176 found = 1;
177 /* It matches, so deque and call compl with an
178 error */
179 list_del(&iocb->list);
180 pring->txq_cnt--;
181 if (iocb->iocb_cmpl) {
182 icmd = &iocb->iocb;
183 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
184 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
185 spin_unlock_irq(phba->host->host_lock);
186 (iocb->iocb_cmpl) (phba, iocb, iocb);
187 spin_lock_irq(phba->host->host_lock);
188 } else {
189 list_add_tail(&iocb->list,
190 &phba->lpfc_iocb_list);
191 }
192 break;
193 }
194 }
195 spin_unlock_irq(phba->host->host_lock);
196 } while (found);
197
198 /* Everything on txcmplq will be returned by firmware
199 * with a no rpi / linkdown / abort error. For ring 0,
200 * ELS discovery, we want to get rid of it right here.
201 */
202 /* Next check the txcmplq */
203 do {
204 found = 0;
205 spin_lock_irq(phba->host->host_lock);
206 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
207 list) {
208 /* Check to see if iocb matches the nport we are looking
209 for */
210 if ((lpfc_check_sli_ndlp (phba, pring, iocb, ndlp))) {
211 found = 1;
212 /* It matches, so deque and call compl with an
213 error */
214 list_del(&iocb->list);
215 pring->txcmplq_cnt--;
216
217 icmd = &iocb->iocb;
218 /* If the driver is completing an ELS
219 * command early, flush it out of the firmware.
220 */
221 if (send_abts &&
222 (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) &&
223 (icmd->un.elsreq64.bdl.ulpIoTag32)) {
224 lpfc_sli_issue_abort_iotag32(phba,
225 pring, iocb);
226 }
227 if (iocb->iocb_cmpl) {
228 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
229 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
230 spin_unlock_irq(phba->host->host_lock);
231 (iocb->iocb_cmpl) (phba, iocb, iocb);
232 spin_lock_irq(phba->host->host_lock);
233 } else {
234 list_add_tail(&iocb->list,
235 &phba->lpfc_iocb_list);
236 }
237 break;
238 }
239 }
240 spin_unlock_irq(phba->host->host_lock);
241 } while(found);
242
243 /* If we are delaying issuing an ELS command, cancel it */
244 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
245 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
246 del_timer_sync(&ndlp->nlp_delayfunc);
247 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
248 list_del_init(&ndlp->els_retry_evt.evt_listp);
249 }
250 return (0);
251}
252
253static int
254lpfc_rcv_plogi(struct lpfc_hba * phba,
255 struct lpfc_nodelist * ndlp,
256 struct lpfc_iocbq *cmdiocb)
257{
258 struct lpfc_dmabuf *pcmd;
259 uint32_t *lp;
260 IOCB_t *icmd;
261 struct serv_parm *sp;
262 LPFC_MBOXQ_t *mbox;
263 struct ls_rjt stat;
264 int rc;
265
266 memset(&stat, 0, sizeof (struct ls_rjt));
267 if (phba->hba_state <= LPFC_FLOGI) {
268 /* Before responding to PLOGI, check for pt2pt mode.
269 * If we are pt2pt, with an outstanding FLOGI, abort
270 * the FLOGI and resend it first.
271 */
272 if (phba->fc_flag & FC_PT2PT) {
273 lpfc_els_abort_flogi(phba);
274 if (!(phba->fc_flag & FC_PT2PT_PLOGI)) {
275 /* If the other side is supposed to initiate
276 * the PLOGI anyway, just ACC it now and
277 * move on with discovery.
278 */
279 phba->fc_edtov = FF_DEF_EDTOV;
280 phba->fc_ratov = FF_DEF_RATOV;
281 /* Start discovery - this should just do
282 CLEAR_LA */
283 lpfc_disc_start(phba);
284 }
285 else {
286 lpfc_initial_flogi(phba);
287 }
288 }
289 else {
290 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
291 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
292 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb,
293 ndlp);
294 return 0;
295 }
296 }
297 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
298 lp = (uint32_t *) pcmd->virt;
299 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
300 if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3) == 0)) {
301 /* Reject this request because invalid parameters */
302 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
303 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
304 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
305 return (0);
306 }
307 icmd = &cmdiocb->iocb;
308
309 /* PLOGI chkparm OK */
310 lpfc_printf_log(phba,
311 KERN_INFO,
312 LOG_ELS,
313 "%d:0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
314 phba->brd_no,
315 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
316 ndlp->nlp_rpi);
317
318 if ((phba->cfg_fcp_class == 2) &&
319 (sp->cls2.classValid)) {
320 ndlp->nlp_fcp_info |= CLASS2;
321 } else {
322 ndlp->nlp_fcp_info |= CLASS3;
323 }
324 ndlp->nlp_class_sup = 0;
325 if (sp->cls1.classValid)
326 ndlp->nlp_class_sup |= FC_COS_CLASS1;
327 if (sp->cls2.classValid)
328 ndlp->nlp_class_sup |= FC_COS_CLASS2;
329 if (sp->cls3.classValid)
330 ndlp->nlp_class_sup |= FC_COS_CLASS3;
331 if (sp->cls4.classValid)
332 ndlp->nlp_class_sup |= FC_COS_CLASS4;
333 ndlp->nlp_maxframe =
334 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
335
336 /* no need to reg_login if we are already in one of these states */
337 switch(ndlp->nlp_state) {
338 case NLP_STE_NPR_NODE:
339 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
340 break;
341 case NLP_STE_REG_LOGIN_ISSUE:
342 case NLP_STE_PRLI_ISSUE:
343 case NLP_STE_UNMAPPED_NODE:
344 case NLP_STE_MAPPED_NODE:
345 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, 0);
346 return (1);
347 }
348
349 if ((phba->fc_flag & FC_PT2PT)
350 && !(phba->fc_flag & FC_PT2PT_PLOGI)) {
351 /* rcv'ed PLOGI decides what our NPortId will be */
352 phba->fc_myDID = icmd->un.rcvels.parmRo;
353 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
354 if (mbox == NULL)
355 goto out;
356 lpfc_config_link(phba, mbox);
357 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
358 rc = lpfc_sli_issue_mbox
359 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
360 if (rc == MBX_NOT_FINISHED) {
361 mempool_free( mbox, phba->mbox_mem_pool);
362 goto out;
363 }
364
365 lpfc_can_disctmo(phba);
366 }
367 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
368 if (mbox == NULL)
369 goto out;
370
371 if (lpfc_reg_login(phba, icmd->un.rcvels.remoteID,
372 (uint8_t *) sp, mbox, 0)) {
373 mempool_free( mbox, phba->mbox_mem_pool);
374 goto out;
375 }
376
377 /* ACC PLOGI rsp command needs to execute first,
378 * queue this mbox command to be processed later.
379 */
380 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
381 mbox->context2 = ndlp;
382 ndlp->nlp_flag |= NLP_ACC_REGLOGIN;
383
384 /* If there is an outstanding PLOGI issued, abort it before
385 * sending ACC rsp to PLOGI recieved.
386 */
387 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
388 /* software abort outstanding PLOGI */
389 lpfc_els_abort(phba, ndlp, 1);
390 }
391 ndlp->nlp_flag |= NLP_RCV_PLOGI;
392 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0);
393 return (1);
394
395out:
396 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
397 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
398 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
399 return (0);
400}
401
402static int
403lpfc_rcv_padisc(struct lpfc_hba * phba,
404 struct lpfc_nodelist * ndlp,
405 struct lpfc_iocbq *cmdiocb)
406{
407 struct lpfc_dmabuf *pcmd;
408 struct serv_parm *sp;
409 struct lpfc_name *pnn, *ppn;
410 struct ls_rjt stat;
411 ADISC *ap;
412 IOCB_t *icmd;
413 uint32_t *lp;
414 uint32_t cmd;
415
416 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
417 lp = (uint32_t *) pcmd->virt;
418
419 cmd = *lp++;
420 if (cmd == ELS_CMD_ADISC) {
421 ap = (ADISC *) lp;
422 pnn = (struct lpfc_name *) & ap->nodeName;
423 ppn = (struct lpfc_name *) & ap->portName;
424 } else {
425 sp = (struct serv_parm *) lp;
426 pnn = (struct lpfc_name *) & sp->nodeName;
427 ppn = (struct lpfc_name *) & sp->portName;
428 }
429
430 icmd = &cmdiocb->iocb;
431 if ((icmd->ulpStatus == 0) &&
432 (lpfc_check_adisc(phba, ndlp, pnn, ppn))) {
433 if (cmd == ELS_CMD_ADISC) {
434 lpfc_els_rsp_adisc_acc(phba, cmdiocb, ndlp);
435 }
436 else {
437 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp,
438 NULL, 0);
439 }
440 return (1);
441 }
442 /* Reject this request because invalid parameters */
443 stat.un.b.lsRjtRsvd0 = 0;
444 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
445 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
446 stat.un.b.vendorUnique = 0;
447 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
448
449 ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
450 /* 1 sec timeout */
451 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
452
453 spin_lock_irq(phba->host->host_lock);
454 ndlp->nlp_flag |= NLP_DELAY_TMO;
455 spin_unlock_irq(phba->host->host_lock);
456 ndlp->nlp_state = NLP_STE_NPR_NODE;
457 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
458 return (0);
459}
460
461static int
462lpfc_rcv_logo(struct lpfc_hba * phba,
463 struct lpfc_nodelist * ndlp,
464 struct lpfc_iocbq *cmdiocb)
465{
466 /* Put ndlp on NPR list with 1 sec timeout for plogi, ACC logo */
467 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
468 * PLOGIs during LOGO storms from a device.
469 */
470 ndlp->nlp_flag |= NLP_LOGO_ACC;
471 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
472
473 if (!(ndlp->nlp_type & NLP_FABRIC)) {
474 /* Only try to re-login if this is NOT a Fabric Node */
475 ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
476 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
477 spin_lock_irq(phba->host->host_lock);
478 ndlp->nlp_flag |= NLP_DELAY_TMO;
479 spin_unlock_irq(phba->host->host_lock);
480 }
481
482 ndlp->nlp_state = NLP_STE_NPR_NODE;
483 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
484
485 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
486 /* The driver has to wait until the ACC completes before it continues
487 * processing the LOGO. The action will resume in
488 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
489 * unreg_login, the driver waits so the ACC does not get aborted.
490 */
491 return (0);
492}
493
494static void
495lpfc_rcv_prli(struct lpfc_hba * phba,
496 struct lpfc_nodelist * ndlp,
497 struct lpfc_iocbq *cmdiocb)
498{
499 struct lpfc_dmabuf *pcmd;
500 uint32_t *lp;
501 PRLI *npr;
502 struct fc_rport *rport = ndlp->rport;
503 u32 roles;
504
505 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
506 lp = (uint32_t *) pcmd->virt;
507 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
508
509 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
510 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
511 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
512 (npr->prliType == PRLI_FCP_TYPE)) {
513 if (npr->initiatorFunc)
514 ndlp->nlp_type |= NLP_FCP_INITIATOR;
515 if (npr->targetFunc)
516 ndlp->nlp_type |= NLP_FCP_TARGET;
517 if (npr->Retry)
518 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
519 }
520 if (rport) {
521 /* We need to update the rport role values */
522 roles = FC_RPORT_ROLE_UNKNOWN;
523 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
524 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
525 if (ndlp->nlp_type & NLP_FCP_TARGET)
526 roles |= FC_RPORT_ROLE_FCP_TARGET;
527 fc_remote_port_rolechg(rport, roles);
528 }
529}
530
531static uint32_t
532lpfc_disc_set_adisc(struct lpfc_hba * phba,
533 struct lpfc_nodelist * ndlp)
534{
535 /* Check config parameter use-adisc or FCP-2 */
536 if ((phba->cfg_use_adisc == 0) &&
537 !(phba->fc_flag & FC_RSCN_MODE)) {
538 if (!(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE))
539 return (0);
540 }
541 spin_lock_irq(phba->host->host_lock);
542 ndlp->nlp_flag |= NLP_NPR_ADISC;
543 spin_unlock_irq(phba->host->host_lock);
544 return (1);
545}
546
547static uint32_t
548lpfc_disc_noop(struct lpfc_hba * phba,
549 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
550{
551 /* This routine does nothing, just return the current state */
552 return (ndlp->nlp_state);
553}
554
555static uint32_t
556lpfc_disc_illegal(struct lpfc_hba * phba,
557 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
558{
559 lpfc_printf_log(phba,
560 KERN_ERR,
561 LOG_DISCOVERY,
562 "%d:0253 Illegal State Transition: node x%x event x%x, "
563 "state x%x Data: x%x x%x\n",
564 phba->brd_no,
565 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
566 ndlp->nlp_flag);
567 return (ndlp->nlp_state);
568}
569
570/* Start of Discovery State Machine routines */
571
572static uint32_t
573lpfc_rcv_plogi_unused_node(struct lpfc_hba * phba,
574 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
575{
576 struct lpfc_iocbq *cmdiocb;
577
578 cmdiocb = (struct lpfc_iocbq *) arg;
579
580 if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
581 ndlp->nlp_state = NLP_STE_UNUSED_NODE;
582 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
583 return (ndlp->nlp_state);
584 }
585 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
586 return (NLP_STE_FREED_NODE);
587}
588
589static uint32_t
590lpfc_rcv_els_unused_node(struct lpfc_hba * phba,
591 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
592{
593 lpfc_issue_els_logo(phba, ndlp, 0);
594 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
595 return (ndlp->nlp_state);
596}
597
598static uint32_t
599lpfc_rcv_logo_unused_node(struct lpfc_hba * phba,
600 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
601{
602 struct lpfc_iocbq *cmdiocb;
603
604 cmdiocb = (struct lpfc_iocbq *) arg;
605
606 spin_lock_irq(phba->host->host_lock);
607 ndlp->nlp_flag |= NLP_LOGO_ACC;
608 spin_unlock_irq(phba->host->host_lock);
609 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
610 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
611
612 return (ndlp->nlp_state);
613}
614
615static uint32_t
616lpfc_cmpl_logo_unused_node(struct lpfc_hba * phba,
617 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
618{
619 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
620 return (NLP_STE_FREED_NODE);
621}
622
623static uint32_t
624lpfc_device_rm_unused_node(struct lpfc_hba * phba,
625 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
626{
627 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
628 return (NLP_STE_FREED_NODE);
629}
630
631static uint32_t
632lpfc_rcv_plogi_plogi_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
633 void *arg, uint32_t evt)
634{
635 struct lpfc_iocbq *cmdiocb = arg;
636 struct lpfc_dmabuf *pcmd;
637 struct serv_parm *sp;
638 uint32_t *lp;
639 struct ls_rjt stat;
640 int port_cmp;
641
642 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
643 lp = (uint32_t *) pcmd->virt;
644 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
645
646 memset(&stat, 0, sizeof (struct ls_rjt));
647
648 /* For a PLOGI, we only accept if our portname is less
649 * than the remote portname.
650 */
651 phba->fc_stat.elsLogiCol++;
652 port_cmp = memcmp(&phba->fc_portname, &sp->portName,
653 sizeof (struct lpfc_name));
654
655 if (port_cmp >= 0) {
656 /* Reject this request because the remote node will accept
657 ours */
658 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
659 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
660 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
661 }
662 else {
663 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
664 } /* if our portname was less */
665
666 return (ndlp->nlp_state);
667}
668
669static uint32_t
670lpfc_rcv_els_plogi_issue(struct lpfc_hba * phba,
671 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
672{
673 struct lpfc_iocbq *cmdiocb;
674
675 cmdiocb = (struct lpfc_iocbq *) arg;
676
677 /* software abort outstanding PLOGI */
678 lpfc_els_abort(phba, ndlp, 1);
679 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
680 spin_lock_irq(phba->host->host_lock);
681 ndlp->nlp_flag |= NLP_DELAY_TMO;
682 spin_unlock_irq(phba->host->host_lock);
683
684 if (evt == NLP_EVT_RCV_LOGO) {
685 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
686 }
687 else {
688 lpfc_issue_els_logo(phba, ndlp, 0);
689 }
690
691 /* Put ndlp in npr list set plogi timer for 1 sec */
692 ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
693 ndlp->nlp_state = NLP_STE_NPR_NODE;
694 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
695
696 return (ndlp->nlp_state);
697}
698
699static uint32_t
700lpfc_cmpl_plogi_plogi_issue(struct lpfc_hba * phba,
701 struct lpfc_nodelist * ndlp, void *arg,
702 uint32_t evt)
703{
704 struct lpfc_iocbq *cmdiocb, *rspiocb;
705 struct lpfc_dmabuf *pcmd, *prsp;
706 uint32_t *lp;
707 IOCB_t *irsp;
708 struct serv_parm *sp;
709 LPFC_MBOXQ_t *mbox;
710
711 cmdiocb = (struct lpfc_iocbq *) arg;
712 rspiocb = cmdiocb->context_un.rsp_iocb;
713
714 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
715 return (ndlp->nlp_state);
716 }
717
718 irsp = &rspiocb->iocb;
719
720 if (irsp->ulpStatus)
721 goto out;
722
723 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
724
725 prsp = list_get_first(&pcmd->list,
726 struct lpfc_dmabuf,
727 list);
728 lp = (uint32_t *) prsp->virt;
729
730 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
731 if (!lpfc_check_sparm(phba, ndlp, sp, CLASS3))
732 goto out;
733
734 /* PLOGI chkparm OK */
735 lpfc_printf_log(phba,
736 KERN_INFO,
737 LOG_ELS,
738 "%d:0121 PLOGI chkparm OK "
739 "Data: x%x x%x x%x x%x\n",
740 phba->brd_no,
741 ndlp->nlp_DID, ndlp->nlp_state,
742 ndlp->nlp_flag, ndlp->nlp_rpi);
743
744 if ((phba->cfg_fcp_class == 2) &&
745 (sp->cls2.classValid)) {
746 ndlp->nlp_fcp_info |= CLASS2;
747 } else {
748 ndlp->nlp_fcp_info |= CLASS3;
749 }
750 ndlp->nlp_class_sup = 0;
751 if (sp->cls1.classValid)
752 ndlp->nlp_class_sup |= FC_COS_CLASS1;
753 if (sp->cls2.classValid)
754 ndlp->nlp_class_sup |= FC_COS_CLASS2;
755 if (sp->cls3.classValid)
756 ndlp->nlp_class_sup |= FC_COS_CLASS3;
757 if (sp->cls4.classValid)
758 ndlp->nlp_class_sup |= FC_COS_CLASS4;
759 ndlp->nlp_maxframe =
760 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
761 sp->cmn.bbRcvSizeLsb;
762
763 if (!(mbox = mempool_alloc(phba->mbox_mem_pool,
764 GFP_KERNEL)))
765 goto out;
766
767 lpfc_unreg_rpi(phba, ndlp);
768 if (lpfc_reg_login
769 (phba, irsp->un.elsreq64.remoteID,
770 (uint8_t *) sp, mbox, 0) == 0) {
771 /* set_slim mailbox command needs to
772 * execute first, queue this command to
773 * be processed later.
774 */
775 switch(ndlp->nlp_DID) {
776 case NameServer_DID:
777 mbox->mbox_cmpl =
778 lpfc_mbx_cmpl_ns_reg_login;
779 break;
780 case FDMI_DID:
781 mbox->mbox_cmpl =
782 lpfc_mbx_cmpl_fdmi_reg_login;
783 break;
784 default:
785 mbox->mbox_cmpl =
786 lpfc_mbx_cmpl_reg_login;
787 }
788 mbox->context2 = ndlp;
789 if (lpfc_sli_issue_mbox(phba, mbox,
790 (MBX_NOWAIT | MBX_STOP_IOCB))
791 != MBX_NOT_FINISHED) {
792 ndlp->nlp_state =
793 NLP_STE_REG_LOGIN_ISSUE;
794 lpfc_nlp_list(phba, ndlp,
795 NLP_REGLOGIN_LIST);
796 return (ndlp->nlp_state);
797 }
798 mempool_free(mbox, phba->mbox_mem_pool);
799 } else {
800 mempool_free(mbox, phba->mbox_mem_pool);
801 }
802
803
804 out:
805 /* Free this node since the driver cannot login or has the wrong
806 sparm */
807 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
808 return (NLP_STE_FREED_NODE);
809}
810
811static uint32_t
812lpfc_device_rm_plogi_issue(struct lpfc_hba * phba,
813 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
814{
815 /* software abort outstanding PLOGI */
816 lpfc_els_abort(phba, ndlp, 1);
817
818 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
819 return (NLP_STE_FREED_NODE);
820}
821
822static uint32_t
823lpfc_device_recov_plogi_issue(struct lpfc_hba * phba,
824 struct lpfc_nodelist * ndlp, void *arg,
825 uint32_t evt)
826{
827 /* software abort outstanding PLOGI */
828 lpfc_els_abort(phba, ndlp, 1);
829
830 ndlp->nlp_state = NLP_STE_NPR_NODE;
831 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
832 spin_lock_irq(phba->host->host_lock);
833 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
834 spin_unlock_irq(phba->host->host_lock);
835
836 return (ndlp->nlp_state);
837}
838
839static uint32_t
840lpfc_rcv_plogi_adisc_issue(struct lpfc_hba * phba,
841 struct lpfc_nodelist * ndlp, void *arg,
842 uint32_t evt)
843{
844 struct lpfc_iocbq *cmdiocb;
845
846 /* software abort outstanding ADISC */
847 lpfc_els_abort(phba, ndlp, 1);
848
849 cmdiocb = (struct lpfc_iocbq *) arg;
850
851 if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
852 return (ndlp->nlp_state);
853 }
854 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
855 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
856 lpfc_issue_els_plogi(phba, ndlp, 0);
857
858 return (ndlp->nlp_state);
859}
860
861static uint32_t
862lpfc_rcv_prli_adisc_issue(struct lpfc_hba * phba,
863 struct lpfc_nodelist * ndlp, void *arg,
864 uint32_t evt)
865{
866 struct lpfc_iocbq *cmdiocb;
867
868 cmdiocb = (struct lpfc_iocbq *) arg;
869
870 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
871 return (ndlp->nlp_state);
872}
873
874static uint32_t
875lpfc_rcv_logo_adisc_issue(struct lpfc_hba * phba,
876 struct lpfc_nodelist * ndlp, void *arg,
877 uint32_t evt)
878{
879 struct lpfc_iocbq *cmdiocb;
880
881 cmdiocb = (struct lpfc_iocbq *) arg;
882
883 /* software abort outstanding ADISC */
884 lpfc_els_abort(phba, ndlp, 0);
885
886 lpfc_rcv_logo(phba, ndlp, cmdiocb);
887 return (ndlp->nlp_state);
888}
889
890static uint32_t
891lpfc_rcv_padisc_adisc_issue(struct lpfc_hba * phba,
892 struct lpfc_nodelist * ndlp, void *arg,
893 uint32_t evt)
894{
895 struct lpfc_iocbq *cmdiocb;
896
897 cmdiocb = (struct lpfc_iocbq *) arg;
898
899 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
900 return (ndlp->nlp_state);
901}
902
903static uint32_t
904lpfc_rcv_prlo_adisc_issue(struct lpfc_hba * phba,
905 struct lpfc_nodelist * ndlp, void *arg,
906 uint32_t evt)
907{
908 struct lpfc_iocbq *cmdiocb;
909
910 cmdiocb = (struct lpfc_iocbq *) arg;
911
912 /* Treat like rcv logo */
913 lpfc_rcv_logo(phba, ndlp, cmdiocb);
914 return (ndlp->nlp_state);
915}
916
917static uint32_t
918lpfc_cmpl_adisc_adisc_issue(struct lpfc_hba * phba,
919 struct lpfc_nodelist * ndlp, void *arg,
920 uint32_t evt)
921{
922 struct lpfc_iocbq *cmdiocb, *rspiocb;
923 IOCB_t *irsp;
924 ADISC *ap;
925
926 cmdiocb = (struct lpfc_iocbq *) arg;
927 rspiocb = cmdiocb->context_un.rsp_iocb;
928
929 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
930 irsp = &rspiocb->iocb;
931
932 if ((irsp->ulpStatus) ||
933 (!lpfc_check_adisc(phba, ndlp, &ap->nodeName, &ap->portName))) {
934 ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
935 /* 1 sec timeout */
936 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
937 spin_lock_irq(phba->host->host_lock);
938 ndlp->nlp_flag |= NLP_DELAY_TMO;
939 spin_unlock_irq(phba->host->host_lock);
940
941 memset(&ndlp->nlp_nodename, 0, sizeof (struct lpfc_name));
942 memset(&ndlp->nlp_portname, 0, sizeof (struct lpfc_name));
943
944 ndlp->nlp_state = NLP_STE_NPR_NODE;
945 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
946 lpfc_unreg_rpi(phba, ndlp);
947 return (ndlp->nlp_state);
948 }
2501322e
JSEC		 949 if (ndlp->nlp_type & NLP_FCP_TARGET) {
950 ndlp->nlp_state = NLP_STE_MAPPED_NODE;
951 lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
952 } else {
953 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
954 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
955 }
dea3101e 956 return (ndlp->nlp_state);
957}
958
959static uint32_t
960lpfc_device_rm_adisc_issue(struct lpfc_hba * phba,
961 struct lpfc_nodelist * ndlp, void *arg,
962 uint32_t evt)
963{
964 /* software abort outstanding ADISC */
965 lpfc_els_abort(phba, ndlp, 1);
966
967 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
968 return (NLP_STE_FREED_NODE);
969}
970
971static uint32_t
972lpfc_device_recov_adisc_issue(struct lpfc_hba * phba,
973 struct lpfc_nodelist * ndlp, void *arg,
974 uint32_t evt)
975{
976 /* software abort outstanding ADISC */
977 lpfc_els_abort(phba, ndlp, 1);
978
979 ndlp->nlp_state = NLP_STE_NPR_NODE;
980 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
981 spin_lock_irq(phba->host->host_lock);
982 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
983 spin_unlock_irq(phba->host->host_lock);
984
985 lpfc_disc_set_adisc(phba, ndlp);
986 return (ndlp->nlp_state);
987}
988
989static uint32_t
990lpfc_rcv_plogi_reglogin_issue(struct lpfc_hba * phba,
991 struct lpfc_nodelist * ndlp, void *arg,
992 uint32_t evt)
993{
994 struct lpfc_iocbq *cmdiocb;
995
996 cmdiocb = (struct lpfc_iocbq *) arg;
997
998 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
999 return (ndlp->nlp_state);
1000}
1001
1002static uint32_t
1003lpfc_rcv_prli_reglogin_issue(struct lpfc_hba * phba,
1004 struct lpfc_nodelist * ndlp, void *arg,
1005 uint32_t evt)
1006{
1007 struct lpfc_iocbq *cmdiocb;
1008
1009 cmdiocb = (struct lpfc_iocbq *) arg;
1010
1011 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
1012 return (ndlp->nlp_state);
1013}
1014
1015static uint32_t
1016lpfc_rcv_logo_reglogin_issue(struct lpfc_hba * phba,
1017 struct lpfc_nodelist * ndlp, void *arg,
1018 uint32_t evt)
1019{
1020 struct lpfc_iocbq *cmdiocb;
1021
1022 cmdiocb = (struct lpfc_iocbq *) arg;
1023
1024 lpfc_rcv_logo(phba, ndlp, cmdiocb);
1025 return (ndlp->nlp_state);
1026}
1027
1028static uint32_t
1029lpfc_rcv_padisc_reglogin_issue(struct lpfc_hba * phba,
1030 struct lpfc_nodelist * ndlp, void *arg,
1031 uint32_t evt)
1032{
1033 struct lpfc_iocbq *cmdiocb;
1034
1035 cmdiocb = (struct lpfc_iocbq *) arg;
1036
1037 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
1038 return (ndlp->nlp_state);
1039}
1040
1041static uint32_t
1042lpfc_rcv_prlo_reglogin_issue(struct lpfc_hba * phba,
1043 struct lpfc_nodelist * ndlp, void *arg,
1044 uint32_t evt)
1045{
1046 struct lpfc_iocbq *cmdiocb;
1047
1048 cmdiocb = (struct lpfc_iocbq *) arg;
1049 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
1050 return (ndlp->nlp_state);
1051}
1052
1053static uint32_t
1054lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_hba * phba,
1055 struct lpfc_nodelist * ndlp,
1056 void *arg, uint32_t evt)
1057{
1058 LPFC_MBOXQ_t *pmb;
1059 MAILBOX_t *mb;
1060 uint32_t did;
1061
1062 pmb = (LPFC_MBOXQ_t *) arg;
1063 mb = &pmb->mb;
1064 did = mb->un.varWords[1];
1065 if (mb->mbxStatus) {
1066 /* RegLogin failed */
1067 lpfc_printf_log(phba,
1068 KERN_ERR,
1069 LOG_DISCOVERY,
1070 "%d:0246 RegLogin failed Data: x%x x%x x%x\n",
1071 phba->brd_no,
1072 did, mb->mbxStatus, phba->hba_state);
1073
1074 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1075 spin_lock_irq(phba->host->host_lock);
1076 ndlp->nlp_flag |= NLP_DELAY_TMO;
1077 spin_unlock_irq(phba->host->host_lock);
1078
1079 lpfc_issue_els_logo(phba, ndlp, 0);
1080 /* Put ndlp in npr list set plogi timer for 1 sec */
1081 ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
1082 ndlp->nlp_state = NLP_STE_NPR_NODE;
1083 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1084 return (ndlp->nlp_state);
1085 }
1086
1087 if (ndlp->nlp_rpi != 0)
1088 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
1089
1090 ndlp->nlp_rpi = mb->un.varWords[0];
1091 lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
1092
1093 /* Only if we are not a fabric nport do we issue PRLI */
1094 if (!(ndlp->nlp_type & NLP_FABRIC)) {
1095 ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
1096 lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
1097 lpfc_issue_els_prli(phba, ndlp, 0);
1098 } else {
1099 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1100 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1101 }
1102 return (ndlp->nlp_state);
1103}
1104
1105static uint32_t
1106lpfc_device_rm_reglogin_issue(struct lpfc_hba * phba,
1107 struct lpfc_nodelist * ndlp, void *arg,
1108 uint32_t evt)
1109{
1110 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1111 return (NLP_STE_FREED_NODE);
1112}
1113
1114static uint32_t
1115lpfc_device_recov_reglogin_issue(struct lpfc_hba * phba,
1116 struct lpfc_nodelist * ndlp, void *arg,
1117 uint32_t evt)
1118{
1119 ndlp->nlp_state = NLP_STE_NPR_NODE;
1120 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1121 spin_lock_irq(phba->host->host_lock);
1122 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1123 spin_unlock_irq(phba->host->host_lock);
1124 return (ndlp->nlp_state);
1125}
1126
1127static uint32_t
1128lpfc_rcv_plogi_prli_issue(struct lpfc_hba * phba,
1129 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1130{
1131 struct lpfc_iocbq *cmdiocb;
1132
1133 cmdiocb = (struct lpfc_iocbq *) arg;
1134
1135 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
1136 return (ndlp->nlp_state);
1137}
1138
1139static uint32_t
1140lpfc_rcv_prli_prli_issue(struct lpfc_hba * phba,
1141 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1142{
1143 struct lpfc_iocbq *cmdiocb;
1144
1145 cmdiocb = (struct lpfc_iocbq *) arg;
1146
1147 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
1148 return (ndlp->nlp_state);
1149}
1150
1151static uint32_t
1152lpfc_rcv_logo_prli_issue(struct lpfc_hba * phba,
1153 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1154{
1155 struct lpfc_iocbq *cmdiocb;
1156
1157 cmdiocb = (struct lpfc_iocbq *) arg;
1158
1159 /* Software abort outstanding PRLI before sending acc */
1160 lpfc_els_abort(phba, ndlp, 1);
1161
1162 lpfc_rcv_logo(phba, ndlp, cmdiocb);
1163 return (ndlp->nlp_state);
1164}
1165
1166static uint32_t
1167lpfc_rcv_padisc_prli_issue(struct lpfc_hba * phba,
1168 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1169{
1170 struct lpfc_iocbq *cmdiocb;
1171
1172 cmdiocb = (struct lpfc_iocbq *) arg;
1173
1174 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
1175 return (ndlp->nlp_state);
1176}
1177
1178/* This routine is envoked when we rcv a PRLO request from a nport
1179 * we are logged into. We should send back a PRLO rsp setting the
1180 * appropriate bits.
1181 * NEXT STATE = PRLI_ISSUE
1182 */
1183static uint32_t
1184lpfc_rcv_prlo_prli_issue(struct lpfc_hba * phba,
1185 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1186{
1187 struct lpfc_iocbq *cmdiocb;
1188
1189 cmdiocb = (struct lpfc_iocbq *) arg;
1190 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
1191 return (ndlp->nlp_state);
1192}
1193
1194static uint32_t
1195lpfc_cmpl_prli_prli_issue(struct lpfc_hba * phba,
1196 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1197{
1198 struct lpfc_iocbq *cmdiocb, *rspiocb;
1199 IOCB_t *irsp;
1200 PRLI *npr;
1201
1202 cmdiocb = (struct lpfc_iocbq *) arg;
1203 rspiocb = cmdiocb->context_un.rsp_iocb;
1204 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1205
1206 irsp = &rspiocb->iocb;
1207 if (irsp->ulpStatus) {
1208 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1209 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1210 return (ndlp->nlp_state);
1211 }
1212
1213 /* Check out PRLI rsp */
1214 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1215 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1216 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1217 (npr->prliType == PRLI_FCP_TYPE)) {
1218 if (npr->initiatorFunc)
1219 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1220 if (npr->targetFunc)
1221 ndlp->nlp_type |= NLP_FCP_TARGET;
1222 if (npr->Retry)
1223 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1224 }
1225
1226 ndlp->nlp_state = NLP_STE_MAPPED_NODE;
1227 lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
1228 return (ndlp->nlp_state);
1229}
1230
1231/*! lpfc_device_rm_prli_issue
1232 *
1233 * \pre
1234 * \post
1235 * \param phba
1236 * \param ndlp
1237 * \param arg
1238 * \param evt
1239 * \return uint32_t
1240 *
1241 * \b Description:
1242 * This routine is envoked when we a request to remove a nport we are in the
1243 * process of PRLIing. We should software abort outstanding prli, unreg
1244 * login, send a logout. We will change node state to UNUSED_NODE, put it
1245 * on plogi list so it can be freed when LOGO completes.
1246 *
1247 */
1248static uint32_t
1249lpfc_device_rm_prli_issue(struct lpfc_hba * phba,
1250 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1251{
1252 /* software abort outstanding PRLI */
1253 lpfc_els_abort(phba, ndlp, 1);
1254
1255 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1256 return (NLP_STE_FREED_NODE);
1257}
1258
1259
1260/*! lpfc_device_recov_prli_issue
1261 *
1262 * \pre
1263 * \post
1264 * \param phba
1265 * \param ndlp
1266 * \param arg
1267 * \param evt
1268 * \return uint32_t
1269 *
1270 * \b Description:
1271 * The routine is envoked when the state of a device is unknown, like
1272 * during a link down. We should remove the nodelist entry from the
1273 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1274 * outstanding PRLI command, then free the node entry.
1275 */
1276static uint32_t
1277lpfc_device_recov_prli_issue(struct lpfc_hba * phba,
1278 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1279{
1280 /* software abort outstanding PRLI */
1281 lpfc_els_abort(phba, ndlp, 1);
1282
1283 ndlp->nlp_state = NLP_STE_NPR_NODE;
1284 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1285 spin_lock_irq(phba->host->host_lock);
1286 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1287 spin_unlock_irq(phba->host->host_lock);
1288 return (ndlp->nlp_state);
1289}
1290
1291static uint32_t
1292lpfc_rcv_plogi_unmap_node(struct lpfc_hba * phba,
1293 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1294{
1295 struct lpfc_iocbq *cmdiocb;
1296
1297 cmdiocb = (struct lpfc_iocbq *) arg;
1298
1299 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
1300 return (ndlp->nlp_state);
1301}
1302
1303static uint32_t
1304lpfc_rcv_prli_unmap_node(struct lpfc_hba * phba,
1305 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1306{
1307 struct lpfc_iocbq *cmdiocb;
1308
1309 cmdiocb = (struct lpfc_iocbq *) arg;
1310
1311 lpfc_rcv_prli(phba, ndlp, cmdiocb);
1312 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
1313 return (ndlp->nlp_state);
1314}
1315
1316static uint32_t
1317lpfc_rcv_logo_unmap_node(struct lpfc_hba * phba,
1318 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1319{
1320 struct lpfc_iocbq *cmdiocb;
1321
1322 cmdiocb = (struct lpfc_iocbq *) arg;
1323
1324 lpfc_rcv_logo(phba, ndlp, cmdiocb);
1325 return (ndlp->nlp_state);
1326}
1327
1328static uint32_t
1329lpfc_rcv_padisc_unmap_node(struct lpfc_hba * phba,
1330 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1331{
1332 struct lpfc_iocbq *cmdiocb;
1333
1334 cmdiocb = (struct lpfc_iocbq *) arg;
1335
1336 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
1337 return (ndlp->nlp_state);
1338}
1339
1340static uint32_t
1341lpfc_rcv_prlo_unmap_node(struct lpfc_hba * phba,
1342 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1343{
1344 struct lpfc_iocbq *cmdiocb;
1345
1346 cmdiocb = (struct lpfc_iocbq *) arg;
1347
1348 /* Treat like rcv logo */
1349 lpfc_rcv_logo(phba, ndlp, cmdiocb);
1350 return (ndlp->nlp_state);
1351}
1352
1353static uint32_t
1354lpfc_device_recov_unmap_node(struct lpfc_hba * phba,
1355 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1356{
1357 ndlp->nlp_state = NLP_STE_NPR_NODE;
1358 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1359 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1360 lpfc_disc_set_adisc(phba, ndlp);
1361
1362 return (ndlp->nlp_state);
1363}
1364
1365static uint32_t
1366lpfc_rcv_plogi_mapped_node(struct lpfc_hba * phba,
1367 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1368{
1369 struct lpfc_iocbq *cmdiocb;
1370
1371 cmdiocb = (struct lpfc_iocbq *) arg;
1372
1373 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
1374 return (ndlp->nlp_state);
1375}
1376
1377static uint32_t
1378lpfc_rcv_prli_mapped_node(struct lpfc_hba * phba,
1379 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1380{
1381 struct lpfc_iocbq *cmdiocb;
1382
1383 cmdiocb = (struct lpfc_iocbq *) arg;
1384
1385 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
1386 return (ndlp->nlp_state);
1387}
1388
1389static uint32_t
1390lpfc_rcv_logo_mapped_node(struct lpfc_hba * phba,
1391 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1392{
1393 struct lpfc_iocbq *cmdiocb;
1394
1395 cmdiocb = (struct lpfc_iocbq *) arg;
1396
1397 lpfc_rcv_logo(phba, ndlp, cmdiocb);
1398 return (ndlp->nlp_state);
1399}
1400
1401static uint32_t
1402lpfc_rcv_padisc_mapped_node(struct lpfc_hba * phba,
1403 struct lpfc_nodelist * ndlp, void *arg,
1404 uint32_t evt)
1405{
1406 struct lpfc_iocbq *cmdiocb;
1407
1408 cmdiocb = (struct lpfc_iocbq *) arg;
1409
1410 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
1411 return (ndlp->nlp_state);
1412}
1413
1414static uint32_t
1415lpfc_rcv_prlo_mapped_node(struct lpfc_hba * phba,
1416 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1417{
1418 struct lpfc_iocbq *cmdiocb;
1419
1420 cmdiocb = (struct lpfc_iocbq *) arg;
1421
1422 /* flush the target */
1423 spin_lock_irq(phba->host->host_lock);
1424 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
1425 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
1426 spin_unlock_irq(phba->host->host_lock);
1427
1428 /* Treat like rcv logo */
1429 lpfc_rcv_logo(phba, ndlp, cmdiocb);
1430 return (ndlp->nlp_state);
1431}
1432
1433static uint32_t
1434lpfc_device_recov_mapped_node(struct lpfc_hba * phba,
1435 struct lpfc_nodelist * ndlp, void *arg,
1436 uint32_t evt)
1437{
1438 ndlp->nlp_state = NLP_STE_NPR_NODE;
1439 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1440 spin_lock_irq(phba->host->host_lock);
1441 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1442 spin_unlock_irq(phba->host->host_lock);
1443 lpfc_disc_set_adisc(phba, ndlp);
1444 return (ndlp->nlp_state);
1445}
1446
1447static uint32_t
1448lpfc_rcv_plogi_npr_node(struct lpfc_hba * phba,
1449 struct lpfc_nodelist * ndlp, void *arg,
1450 uint32_t evt)
1451{
1452 struct lpfc_iocbq *cmdiocb;
1453
1454 cmdiocb = (struct lpfc_iocbq *) arg;
1455
1456 /* Ignore PLOGI if we have an outstanding LOGO */
1457 if (ndlp->nlp_flag & NLP_LOGO_SND) {
1458 return (ndlp->nlp_state);
1459 }
1460
1461 if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
1462 spin_lock_irq(phba->host->host_lock);
1463 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
1464 spin_unlock_irq(phba->host->host_lock);
1465 return (ndlp->nlp_state);
1466 }
1467
1468 /* send PLOGI immediately, move to PLOGI issue state */
1469 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1470 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1471 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1472 lpfc_issue_els_plogi(phba, ndlp, 0);
1473 }
1474 return (ndlp->nlp_state);
1475}
1476
1477static uint32_t
1478lpfc_rcv_prli_npr_node(struct lpfc_hba * phba,
1479 struct lpfc_nodelist * ndlp, void *arg,
1480 uint32_t evt)
1481{
1482 struct lpfc_iocbq *cmdiocb;
1483 struct ls_rjt stat;
1484
1485 cmdiocb = (struct lpfc_iocbq *) arg;
1486
1487 memset(&stat, 0, sizeof (struct ls_rjt));
1488 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1489 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1490 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
1491
1492 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1493 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1494 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1495 lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1496 lpfc_issue_els_adisc(phba, ndlp, 0);
1497 } else {
1498 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1499 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1500 lpfc_issue_els_plogi(phba, ndlp, 0);
1501 }
1502 }
1503 return (ndlp->nlp_state);
1504}
1505
1506static uint32_t
1507lpfc_rcv_logo_npr_node(struct lpfc_hba * phba,
1508 struct lpfc_nodelist * ndlp, void *arg,
1509 uint32_t evt)
1510{
1511 struct lpfc_iocbq *cmdiocb;
1512
1513 cmdiocb = (struct lpfc_iocbq *) arg;
1514
1515 lpfc_rcv_logo(phba, ndlp, cmdiocb);
1516 return (ndlp->nlp_state);
1517}
1518
1519static uint32_t
1520lpfc_rcv_padisc_npr_node(struct lpfc_hba * phba,
1521 struct lpfc_nodelist * ndlp, void *arg,
1522 uint32_t evt)
1523{
1524 struct lpfc_iocbq *cmdiocb;
1525
1526 cmdiocb = (struct lpfc_iocbq *) arg;
1527
1528 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
1529
1530 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1531 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1532 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1533 lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1534 lpfc_issue_els_adisc(phba, ndlp, 0);
1535 } else {
1536 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1537 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1538 lpfc_issue_els_plogi(phba, ndlp, 0);
1539 }
1540 }
1541 return (ndlp->nlp_state);
1542}
1543
1544static uint32_t
1545lpfc_rcv_prlo_npr_node(struct lpfc_hba * phba,
1546 struct lpfc_nodelist * ndlp, void *arg,
1547 uint32_t evt)
1548{
1549 struct lpfc_iocbq *cmdiocb;
1550
1551 cmdiocb = (struct lpfc_iocbq *) arg;
1552
1553 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
1554
1555 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1556 if (ndlp->nlp_last_elscmd == (unsigned long)ELS_CMD_PLOGI) {
1557 return (ndlp->nlp_state);
1558 } else {
1559 spin_lock_irq(phba->host->host_lock);
1560 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1561 spin_unlock_irq(phba->host->host_lock);
1562 del_timer_sync(&ndlp->nlp_delayfunc);
1563 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1564 list_del_init(&ndlp->els_retry_evt.evt_listp);
1565 }
1566 }
1567
1568 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1569 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1570 lpfc_issue_els_plogi(phba, ndlp, 0);
1571 return (ndlp->nlp_state);
1572}
1573
1574static uint32_t
1575lpfc_cmpl_logo_npr_node(struct lpfc_hba * phba,
1576 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1577{
1578 lpfc_unreg_rpi(phba, ndlp);
1579 /* This routine does nothing, just return the current state */
1580 return (ndlp->nlp_state);
1581}
1582
1583static uint32_t
1584lpfc_cmpl_reglogin_npr_node(struct lpfc_hba * phba,
1585 struct lpfc_nodelist * ndlp, void *arg,
1586 uint32_t evt)
1587{
1588 LPFC_MBOXQ_t *pmb;
1589 MAILBOX_t *mb;
1590
1591 pmb = (LPFC_MBOXQ_t *) arg;
1592 mb = &pmb->mb;
1593
1594 /* save rpi */
1595 if (ndlp->nlp_rpi != 0)
1596 lpfc_findnode_remove_rpi(phba, ndlp->nlp_rpi);
1597
1598 ndlp->nlp_rpi = mb->un.varWords[0];
1599 lpfc_addnode_rpi(phba, ndlp, ndlp->nlp_rpi);
1600
1601 return (ndlp->nlp_state);
1602}
1603
1604static uint32_t
1605lpfc_device_rm_npr_node(struct lpfc_hba * phba,
1606 struct lpfc_nodelist * ndlp, void *arg,
1607 uint32_t evt)
1608{
1609 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1610 return (NLP_STE_FREED_NODE);
1611}
1612
1613static uint32_t
1614lpfc_device_recov_npr_node(struct lpfc_hba * phba,
1615 struct lpfc_nodelist * ndlp, void *arg,
1616 uint32_t evt)
1617{
1618 spin_lock_irq(phba->host->host_lock);
1619 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1620 spin_unlock_irq(phba->host->host_lock);
1621 return (ndlp->nlp_state);
1622}
1623
1624
1625/* This next section defines the NPort Discovery State Machine */
1626
1627/* There are 4 different double linked lists nodelist entries can reside on.
1628 * The plogi list and adisc list are used when Link Up discovery or RSCN
1629 * processing is needed. Each list holds the nodes that we will send PLOGI
1630 * or ADISC on. These lists will keep track of what nodes will be effected
1631 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1632 * The unmapped_list will contain all nodes that we have successfully logged
1633 * into at the Fibre Channel level. The mapped_list will contain all nodes
1634 * that are mapped FCP targets.
1635 */
1636/*
1637 * The bind list is a list of undiscovered (potentially non-existent) nodes
1638 * that we have saved binding information on. This information is used when
1639 * nodes transition from the unmapped to the mapped list.
1640 */
1641/* For UNUSED_NODE state, the node has just been allocated .
1642 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1643 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1644 * and put on the unmapped list. For ADISC processing, the node is taken off
1645 * the ADISC list and placed on either the mapped or unmapped list (depending
1646 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1647 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1648 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1649 * node, the node is taken off the unmapped list. The binding list is checked
1650 * for a valid binding, or a binding is automatically assigned. If binding
1651 * assignment is unsuccessful, the node is left on the unmapped list. If
1652 * binding assignment is successful, the associated binding list entry (if
1653 * any) is removed, and the node is placed on the mapped list.
1654 */
1655/*
1656 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
1657 * lists will receive a DEVICE_RECOVERY event. If the linkdown or nodev timers
1658 * expire, all effected nodes will receive a DEVICE_RM event.
1659 */
1660/*
1661 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
1662 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
1663 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
1664 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
1665 * we will first process the ADISC list. 32 entries are processed initially and
1666 * ADISC is initited for each one. Completions / Events for each node are
1667 * funnelled thru the state machine. As each node finishes ADISC processing, it
1668 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
1669 * waiting, and the ADISC list count is identically 0, then we are done. For
1670 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
1671 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
1672 * list. 32 entries are processed initially and PLOGI is initited for each one.
1673 * Completions / Events for each node are funnelled thru the state machine. As
1674 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
1675 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
1676 * indentically 0, then we are done. We have now completed discovery / RSCN
1677 * handling. Upon completion, ALL nodes should be on either the mapped or
1678 * unmapped lists.
1679 */
1680
1681static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
1682 (struct lpfc_hba *, struct lpfc_nodelist *, void *, uint32_t) = {
1683 /* Action routine Event Current State */
1684 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
1685 lpfc_rcv_els_unused_node, /* RCV_PRLI */
1686 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
1687 lpfc_rcv_els_unused_node, /* RCV_ADISC */
1688 lpfc_rcv_els_unused_node, /* RCV_PDISC */
1689 lpfc_rcv_els_unused_node, /* RCV_PRLO */
1690 lpfc_disc_illegal, /* CMPL_PLOGI */
1691 lpfc_disc_illegal, /* CMPL_PRLI */
1692 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
1693 lpfc_disc_illegal, /* CMPL_ADISC */
1694 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1695 lpfc_device_rm_unused_node, /* DEVICE_RM */
1696 lpfc_disc_illegal, /* DEVICE_RECOVERY */
1697
1698 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
1699 lpfc_rcv_els_plogi_issue, /* RCV_PRLI */
1700 lpfc_rcv_els_plogi_issue, /* RCV_LOGO */
1701 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
1702 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
1703 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
1704 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
1705 lpfc_disc_illegal, /* CMPL_PRLI */
1706 lpfc_disc_illegal, /* CMPL_LOGO */
1707 lpfc_disc_illegal, /* CMPL_ADISC */
1708 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1709 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
1710 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
1711
1712 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
1713 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
1714 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
1715 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
1716 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
1717 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
1718 lpfc_disc_illegal, /* CMPL_PLOGI */
1719 lpfc_disc_illegal, /* CMPL_PRLI */
1720 lpfc_disc_illegal, /* CMPL_LOGO */
1721 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
1722 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1723 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
1724 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
1725
1726 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
1727 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
1728 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
1729 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
1730 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
1731 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
1732 lpfc_disc_illegal, /* CMPL_PLOGI */
1733 lpfc_disc_illegal, /* CMPL_PRLI */
1734 lpfc_disc_illegal, /* CMPL_LOGO */
1735 lpfc_disc_illegal, /* CMPL_ADISC */
1736 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
1737 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
1738 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
1739
1740 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
1741 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
1742 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
1743 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
1744 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
1745 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
1746 lpfc_disc_illegal, /* CMPL_PLOGI */
1747 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
1748 lpfc_disc_illegal, /* CMPL_LOGO */
1749 lpfc_disc_illegal, /* CMPL_ADISC */
1750 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1751 lpfc_device_rm_prli_issue, /* DEVICE_RM */
1752 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
1753
1754 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
1755 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
1756 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
1757 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
1758 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
1759 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
1760 lpfc_disc_illegal, /* CMPL_PLOGI */
1761 lpfc_disc_illegal, /* CMPL_PRLI */
1762 lpfc_disc_illegal, /* CMPL_LOGO */
1763 lpfc_disc_illegal, /* CMPL_ADISC */
1764 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1765 lpfc_disc_illegal, /* DEVICE_RM */
1766 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
1767
1768 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
1769 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
1770 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
1771 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
1772 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
1773 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
1774 lpfc_disc_illegal, /* CMPL_PLOGI */
1775 lpfc_disc_illegal, /* CMPL_PRLI */
1776 lpfc_disc_illegal, /* CMPL_LOGO */
1777 lpfc_disc_illegal, /* CMPL_ADISC */
1778 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1779 lpfc_disc_illegal, /* DEVICE_RM */
1780 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
1781
1782 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
1783 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
1784 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
1785 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
1786 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
1787 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
1788 lpfc_disc_noop, /* CMPL_PLOGI */
1789 lpfc_disc_noop, /* CMPL_PRLI */
1790 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
1791 lpfc_disc_noop, /* CMPL_ADISC */
1792 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
1793 lpfc_device_rm_npr_node, /* DEVICE_RM */
1794 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
1795};
1796
1797int
1798lpfc_disc_state_machine(struct lpfc_hba * phba,
1799 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1800{
1801 uint32_t cur_state, rc;
1802 uint32_t(*func) (struct lpfc_hba *, struct lpfc_nodelist *, void *,
1803 uint32_t);
1804
1805 ndlp->nlp_disc_refcnt++;
1806 cur_state = ndlp->nlp_state;
1807
1808 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
1809 lpfc_printf_log(phba,
1810 KERN_INFO,
1811 LOG_DISCOVERY,
1812 "%d:0211 DSM in event x%x on NPort x%x in state %d "
1813 "Data: x%x\n",
1814 phba->brd_no,
1815 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
1816
1817 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
1818 rc = (func) (phba, ndlp, arg, evt);
1819
1820 /* DSM out state <rc> on NPort <nlp_DID> */
1821 lpfc_printf_log(phba,
1822 KERN_INFO,
1823 LOG_DISCOVERY,
1824 "%d:0212 DSM out state %d on NPort x%x Data: x%x\n",
1825 phba->brd_no,
1826 rc, ndlp->nlp_DID, ndlp->nlp_flag);
1827
1828 ndlp->nlp_disc_refcnt--;
1829
1830 /* Check to see if ndlp removal is deferred */
1831 if ((ndlp->nlp_disc_refcnt == 0)
1832 && (ndlp->nlp_flag & NLP_DELAY_REMOVE)) {
1833 spin_lock_irq(phba->host->host_lock);
1834 ndlp->nlp_flag &= ~NLP_DELAY_REMOVE;
1835 spin_unlock_irq(phba->host->host_lock);
1836 lpfc_nlp_remove(phba, ndlp);
1837 return (NLP_STE_FREED_NODE);
1838 }
1839 if (rc == NLP_STE_FREED_NODE)
1840 return (NLP_STE_FREED_NODE);
1841 ndlp->nlp_state = rc;
1842 return (rc);
1843}
Linux kernel - Deliverables
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