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[SCSI] lpfc 8.1.2: Make lpfc_els_rsp_rps_acc and lpfc_els_rsp_rpl_acc static
[linux-block.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
CommitLineData
dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173
JSEC		 3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2005 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
23#include <linux/pci.h>
24#include <linux/interrupt.h>
25
91886523 26#include <scsi/scsi.h>
dea3101e 27#include <scsi/scsi_device.h>
28#include <scsi/scsi_host.h>
29#include <scsi/scsi_transport_fc.h>
30
31#include "lpfc_hw.h"
32#include "lpfc_sli.h"
33#include "lpfc_disc.h"
34#include "lpfc_scsi.h"
35#include "lpfc.h"
36#include "lpfc_logmsg.h"
37#include "lpfc_crtn.h"
38
39
40/* Called to verify a rcv'ed ADISC was intended for us. */
41static int
42lpfc_check_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
43 struct lpfc_name * nn, struct lpfc_name * pn)
44{
45 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
46 * table entry for that node.
47 */
48 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)) != 0)
c9f8735b 49 return 0;
dea3101e 50
51 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)) != 0)
c9f8735b 52 return 0;
dea3101e 53
54 /* we match, return success */
c9f8735b 55 return 1;
dea3101e 56}
57
dea3101e 58int
59lpfc_check_sparm(struct lpfc_hba * phba,
60 struct lpfc_nodelist * ndlp, struct serv_parm * sp,
61 uint32_t class)
62{
63 volatile struct serv_parm *hsp = &phba->fc_sparam;
2fb70f79
JSEC		 64 uint16_t hsp_value, ssp_value = 0;
65
66 /*
67 * The receive data field size and buffer-to-buffer receive data field
68 * size entries are 16 bits but are represented as two 8-bit fields in
69 * the driver data structure to account for rsvd bits and other control
70 * bits. Reconstruct and compare the fields as a 16-bit values before
71 * correcting the byte values.
72 */
dea3101e 73 if (sp->cls1.classValid) {
2fb70f79
JSEC		 74 hsp_value = (hsp->cls1.rcvDataSizeMsb << 8) |
75 hsp->cls1.rcvDataSizeLsb;
76 ssp_value = (sp->cls1.rcvDataSizeMsb << 8) |
77 sp->cls1.rcvDataSizeLsb;
78 if (ssp_value > hsp_value) {
dea3101e 79 sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb;
2fb70f79
JSEC		 80 sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb;
81 }
dea3101e 82 } else if (class == CLASS1) {
2fb70f79 83 return 0;
dea3101e 84 }
85
86 if (sp->cls2.classValid) {
2fb70f79
JSEC		 87 hsp_value = (hsp->cls2.rcvDataSizeMsb << 8) |
88 hsp->cls2.rcvDataSizeLsb;
89 ssp_value = (sp->cls2.rcvDataSizeMsb << 8) |
90 sp->cls2.rcvDataSizeLsb;
91 if (ssp_value > hsp_value) {
dea3101e 92 sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb;
2fb70f79
JSEC		 93 sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb;
94 }
dea3101e 95 } else if (class == CLASS2) {
2fb70f79 96 return 0;
dea3101e 97 }
98
99 if (sp->cls3.classValid) {
2fb70f79
JSEC		 100 hsp_value = (hsp->cls3.rcvDataSizeMsb << 8) |
101 hsp->cls3.rcvDataSizeLsb;
102 ssp_value = (sp->cls3.rcvDataSizeMsb << 8) |
103 sp->cls3.rcvDataSizeLsb;
104 if (ssp_value > hsp_value) {
dea3101e 105 sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb;
2fb70f79
JSEC		 106 sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb;
107 }
dea3101e 108 } else if (class == CLASS3) {
2fb70f79 109 return 0;
dea3101e 110 }
111
2fb70f79
JSEC		 112 /*
113 * Preserve the upper four bits of the MSB from the PLOGI response.
114 * These bits contain the Buffer-to-Buffer State Change Number
115 * from the target and need to be passed to the FW.
116 */
117 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
118 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
119 if (ssp_value > hsp_value) {
dea3101e 120 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
2fb70f79
JSEC		 121 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
122 (hsp->cmn.bbRcvSizeMsb & 0x0F);
123 }
dea3101e 124
dea3101e 125 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
126 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
2fb70f79 127 return 1;
dea3101e 128}
129
130static void *
131lpfc_check_elscmpl_iocb(struct lpfc_hba * phba,
132 struct lpfc_iocbq *cmdiocb,
133 struct lpfc_iocbq *rspiocb)
134{
135 struct lpfc_dmabuf *pcmd, *prsp;
136 uint32_t *lp;
137 void *ptr = NULL;
138 IOCB_t *irsp;
139
140 irsp = &rspiocb->iocb;
141 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
142
143 /* For lpfc_els_abort, context2 could be zero'ed to delay
144 * freeing associated memory till after ABTS completes.
145 */
146 if (pcmd) {
147 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
148 list);
149 if (prsp) {
150 lp = (uint32_t *) prsp->virt;
151 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
152 }
153 }
154 else {
155 /* Force ulpStatus error since we are returning NULL ptr */
156 if (!(irsp->ulpStatus)) {
157 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
158 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
159 }
160 ptr = NULL;
161 }
c9f8735b 162 return ptr;
dea3101e 163}
164
165
166/*
167 * Free resources / clean up outstanding I/Os
168 * associated with a LPFC_NODELIST entry. This
169 * routine effectively results in a "software abort".
170 */
171int
172lpfc_els_abort(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
173 int send_abts)
174{
175 struct lpfc_sli *psli;
176 struct lpfc_sli_ring *pring;
177 struct lpfc_iocbq *iocb, *next_iocb;
178 IOCB_t *icmd;
179 int found = 0;
180
181 /* Abort outstanding I/O on NPort <nlp_DID> */
182 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
183 "%d:0201 Abort outstanding I/O on NPort x%x "
184 "Data: x%x x%x x%x\n",
185 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
186 ndlp->nlp_state, ndlp->nlp_rpi);
187
188 psli = &phba->sli;
189 pring = &psli->ring[LPFC_ELS_RING];
190
191 /* First check the txq */
192 do {
193 found = 0;
194 spin_lock_irq(phba->host->host_lock);
195 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
196 /* Check to see if iocb matches the nport we are looking
197 for */
198 if ((lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))) {
199 found = 1;
200 /* It matches, so deque and call compl with an
201 error */
202 list_del(&iocb->list);
203 pring->txq_cnt--;
204 if (iocb->iocb_cmpl) {
205 icmd = &iocb->iocb;
206 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
207 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
208 spin_unlock_irq(phba->host->host_lock);
209 (iocb->iocb_cmpl) (phba, iocb, iocb);
210 spin_lock_irq(phba->host->host_lock);
604a3e30
JB		 211 } else
212 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 213 break;
214 }
215 }
216 spin_unlock_irq(phba->host->host_lock);
217 } while (found);
218
219 /* Everything on txcmplq will be returned by firmware
220 * with a no rpi / linkdown / abort error. For ring 0,
221 * ELS discovery, we want to get rid of it right here.
222 */
223 /* Next check the txcmplq */
224 do {
225 found = 0;
226 spin_lock_irq(phba->host->host_lock);
227 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
228 list) {
229 /* Check to see if iocb matches the nport we are looking
230 for */
231 if ((lpfc_check_sli_ndlp (phba, pring, iocb, ndlp))) {
232 found = 1;
233 /* It matches, so deque and call compl with an
234 error */
235 list_del(&iocb->list);
236 pring->txcmplq_cnt--;
237
238 icmd = &iocb->iocb;
239 /* If the driver is completing an ELS
240 * command early, flush it out of the firmware.
241 */
242 if (send_abts &&
243 (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) &&
244 (icmd->un.elsreq64.bdl.ulpIoTag32)) {
245 lpfc_sli_issue_abort_iotag32(phba,
246 pring, iocb);
247 }
248 if (iocb->iocb_cmpl) {
249 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
250 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
251 spin_unlock_irq(phba->host->host_lock);
252 (iocb->iocb_cmpl) (phba, iocb, iocb);
253 spin_lock_irq(phba->host->host_lock);
604a3e30
JB		 254 } else
255 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 256 break;
257 }
258 }
259 spin_unlock_irq(phba->host->host_lock);
260 } while(found);
261
262 /* If we are delaying issuing an ELS command, cancel it */
263 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
264 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
5024ab17 265 ndlp->nlp_last_elscmd = 0;
dea3101e 266 del_timer_sync(&ndlp->nlp_delayfunc);
267 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
268 list_del_init(&ndlp->els_retry_evt.evt_listp);
269 }
c9f8735b 270 return 0;
dea3101e 271}
272
273static int
274lpfc_rcv_plogi(struct lpfc_hba * phba,
275 struct lpfc_nodelist * ndlp,
276 struct lpfc_iocbq *cmdiocb)
277{
278 struct lpfc_dmabuf *pcmd;
279 uint32_t *lp;
280 IOCB_t *icmd;
281 struct serv_parm *sp;
282 LPFC_MBOXQ_t *mbox;
283 struct ls_rjt stat;
284 int rc;
285
286 memset(&stat, 0, sizeof (struct ls_rjt));
287 if (phba->hba_state <= LPFC_FLOGI) {
288 /* Before responding to PLOGI, check for pt2pt mode.
289 * If we are pt2pt, with an outstanding FLOGI, abort
290 * the FLOGI and resend it first.
291 */
292 if (phba->fc_flag & FC_PT2PT) {
293 lpfc_els_abort_flogi(phba);
294 if (!(phba->fc_flag & FC_PT2PT_PLOGI)) {
295 /* If the other side is supposed to initiate
296 * the PLOGI anyway, just ACC it now and
297 * move on with discovery.
298 */
299 phba->fc_edtov = FF_DEF_EDTOV;
300 phba->fc_ratov = FF_DEF_RATOV;
301 /* Start discovery - this should just do
302 CLEAR_LA */
303 lpfc_disc_start(phba);
304 }
305 else {
306 lpfc_initial_flogi(phba);
307 }
308 }
309 else {
310 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
311 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
312 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb,
313 ndlp);
314 return 0;
315 }
316 }
317 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
318 lp = (uint32_t *) pcmd->virt;
319 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
320 if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3) == 0)) {
321 /* Reject this request because invalid parameters */
322 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
323 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
324 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
c9f8735b 325 return 0;
dea3101e 326 }
327 icmd = &cmdiocb->iocb;
328
329 /* PLOGI chkparm OK */
330 lpfc_printf_log(phba,
331 KERN_INFO,
332 LOG_ELS,
333 "%d:0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
334 phba->brd_no,
335 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
336 ndlp->nlp_rpi);
337
338 if ((phba->cfg_fcp_class == 2) &&
339 (sp->cls2.classValid)) {
340 ndlp->nlp_fcp_info |= CLASS2;
341 } else {
342 ndlp->nlp_fcp_info |= CLASS3;
343 }
344 ndlp->nlp_class_sup = 0;
345 if (sp->cls1.classValid)
346 ndlp->nlp_class_sup |= FC_COS_CLASS1;
347 if (sp->cls2.classValid)
348 ndlp->nlp_class_sup |= FC_COS_CLASS2;
349 if (sp->cls3.classValid)
350 ndlp->nlp_class_sup |= FC_COS_CLASS3;
351 if (sp->cls4.classValid)
352 ndlp->nlp_class_sup |= FC_COS_CLASS4;
353 ndlp->nlp_maxframe =
354 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
355
356 /* no need to reg_login if we are already in one of these states */
357 switch(ndlp->nlp_state) {
358 case NLP_STE_NPR_NODE:
359 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
360 break;
361 case NLP_STE_REG_LOGIN_ISSUE:
362 case NLP_STE_PRLI_ISSUE:
363 case NLP_STE_UNMAPPED_NODE:
364 case NLP_STE_MAPPED_NODE:
365 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, 0);
c9f8735b 366 return 1;
dea3101e 367 }
368
369 if ((phba->fc_flag & FC_PT2PT)
370 && !(phba->fc_flag & FC_PT2PT_PLOGI)) {
371 /* rcv'ed PLOGI decides what our NPortId will be */
372 phba->fc_myDID = icmd->un.rcvels.parmRo;
373 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
374 if (mbox == NULL)
375 goto out;
376 lpfc_config_link(phba, mbox);
377 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
378 rc = lpfc_sli_issue_mbox
379 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
380 if (rc == MBX_NOT_FINISHED) {
381 mempool_free( mbox, phba->mbox_mem_pool);
382 goto out;
383 }
384
385 lpfc_can_disctmo(phba);
386 }
387 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
388 if (mbox == NULL)
389 goto out;
390
391 if (lpfc_reg_login(phba, icmd->un.rcvels.remoteID,
392 (uint8_t *) sp, mbox, 0)) {
393 mempool_free( mbox, phba->mbox_mem_pool);
394 goto out;
395 }
396
397 /* ACC PLOGI rsp command needs to execute first,
398 * queue this mbox command to be processed later.
399 */
400 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
401 mbox->context2 = ndlp;
5024ab17 402 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
dea3101e 403
dea3101e 404 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0);
c9f8735b 405 return 1;
dea3101e 406
407out:
408 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
409 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
410 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
c9f8735b 411 return 0;
dea3101e 412}
413
414static int
415lpfc_rcv_padisc(struct lpfc_hba * phba,
416 struct lpfc_nodelist * ndlp,
417 struct lpfc_iocbq *cmdiocb)
418{
419 struct lpfc_dmabuf *pcmd;
420 struct serv_parm *sp;
421 struct lpfc_name *pnn, *ppn;
422 struct ls_rjt stat;
423 ADISC *ap;
424 IOCB_t *icmd;
425 uint32_t *lp;
426 uint32_t cmd;
427
428 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
429 lp = (uint32_t *) pcmd->virt;
430
431 cmd = *lp++;
432 if (cmd == ELS_CMD_ADISC) {
433 ap = (ADISC *) lp;
434 pnn = (struct lpfc_name *) & ap->nodeName;
435 ppn = (struct lpfc_name *) & ap->portName;
436 } else {
437 sp = (struct serv_parm *) lp;
438 pnn = (struct lpfc_name *) & sp->nodeName;
439 ppn = (struct lpfc_name *) & sp->portName;
440 }
441
442 icmd = &cmdiocb->iocb;
443 if ((icmd->ulpStatus == 0) &&
444 (lpfc_check_adisc(phba, ndlp, pnn, ppn))) {
445 if (cmd == ELS_CMD_ADISC) {
446 lpfc_els_rsp_adisc_acc(phba, cmdiocb, ndlp);
447 }
448 else {
449 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp,
450 NULL, 0);
451 }
c9f8735b 452 return 1;
dea3101e 453 }
454 /* Reject this request because invalid parameters */
455 stat.un.b.lsRjtRsvd0 = 0;
456 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
457 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
458 stat.un.b.vendorUnique = 0;
459 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
460
dea3101e 461 /* 1 sec timeout */
462 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
463
464 spin_lock_irq(phba->host->host_lock);
465 ndlp->nlp_flag |= NLP_DELAY_TMO;
466 spin_unlock_irq(phba->host->host_lock);
5024ab17
JW		 467 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
468 ndlp->nlp_prev_state = ndlp->nlp_state;
dea3101e 469 ndlp->nlp_state = NLP_STE_NPR_NODE;
470 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
c9f8735b 471 return 0;
dea3101e 472}
473
474static int
475lpfc_rcv_logo(struct lpfc_hba * phba,
476 struct lpfc_nodelist * ndlp,
477 struct lpfc_iocbq *cmdiocb)
478{
479 /* Put ndlp on NPR list with 1 sec timeout for plogi, ACC logo */
480 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
481 * PLOGIs during LOGO storms from a device.
482 */
483 ndlp->nlp_flag |= NLP_LOGO_ACC;
484 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
485
c9f8735b
JW		 486 if (!(ndlp->nlp_type & NLP_FABRIC) ||
487 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
dea3101e 488 /* Only try to re-login if this is NOT a Fabric Node */
dea3101e 489 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
490 spin_lock_irq(phba->host->host_lock);
491 ndlp->nlp_flag |= NLP_DELAY_TMO;
492 spin_unlock_irq(phba->host->host_lock);
dea3101e 493
5024ab17
JW		 494 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
495 ndlp->nlp_prev_state = ndlp->nlp_state;
c9f8735b
JW		 496 ndlp->nlp_state = NLP_STE_NPR_NODE;
497 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
498 } else {
5024ab17 499 ndlp->nlp_prev_state = ndlp->nlp_state;
c9f8735b
JW		 500 ndlp->nlp_state = NLP_STE_UNUSED_NODE;
501 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
502 }
dea3101e 503
c9f8735b 504 spin_lock_irq(phba->host->host_lock);
dea3101e 505 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
c9f8735b 506 spin_unlock_irq(phba->host->host_lock);
dea3101e 507 /* The driver has to wait until the ACC completes before it continues
508 * processing the LOGO. The action will resume in
509 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
510 * unreg_login, the driver waits so the ACC does not get aborted.
511 */
c9f8735b 512 return 0;
dea3101e 513}
514
515static void
516lpfc_rcv_prli(struct lpfc_hba * phba,
517 struct lpfc_nodelist * ndlp,
518 struct lpfc_iocbq *cmdiocb)
519{
520 struct lpfc_dmabuf *pcmd;
521 uint32_t *lp;
522 PRLI *npr;
523 struct fc_rport *rport = ndlp->rport;
524 u32 roles;
525
526 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
527 lp = (uint32_t *) pcmd->virt;
528 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
529
530 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
531 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
532 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
533 (npr->prliType == PRLI_FCP_TYPE)) {
534 if (npr->initiatorFunc)
535 ndlp->nlp_type |= NLP_FCP_INITIATOR;
536 if (npr->targetFunc)
537 ndlp->nlp_type |= NLP_FCP_TARGET;
538 if (npr->Retry)
539 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
540 }
541 if (rport) {
542 /* We need to update the rport role values */
543 roles = FC_RPORT_ROLE_UNKNOWN;
544 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
545 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
546 if (ndlp->nlp_type & NLP_FCP_TARGET)
547 roles |= FC_RPORT_ROLE_FCP_TARGET;
548 fc_remote_port_rolechg(rport, roles);
549 }
550}
551
552static uint32_t
553lpfc_disc_set_adisc(struct lpfc_hba * phba,
554 struct lpfc_nodelist * ndlp)
555{
556 /* Check config parameter use-adisc or FCP-2 */
557 if ((phba->cfg_use_adisc == 0) &&
558 !(phba->fc_flag & FC_RSCN_MODE)) {
559 if (!(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE))
c9f8735b 560 return 0;
dea3101e 561 }
562 spin_lock_irq(phba->host->host_lock);
563 ndlp->nlp_flag |= NLP_NPR_ADISC;
564 spin_unlock_irq(phba->host->host_lock);
c9f8735b 565 return 1;
dea3101e 566}
567
568static uint32_t
569lpfc_disc_illegal(struct lpfc_hba * phba,
570 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
571{
572 lpfc_printf_log(phba,
573 KERN_ERR,
574 LOG_DISCOVERY,
575 "%d:0253 Illegal State Transition: node x%x event x%x, "
576 "state x%x Data: x%x x%x\n",
577 phba->brd_no,
578 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
579 ndlp->nlp_flag);
c9f8735b 580 return ndlp->nlp_state;
dea3101e 581}
582
583/* Start of Discovery State Machine routines */
584
585static uint32_t
586lpfc_rcv_plogi_unused_node(struct lpfc_hba * phba,
587 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
588{
589 struct lpfc_iocbq *cmdiocb;
590
591 cmdiocb = (struct lpfc_iocbq *) arg;
592
593 if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
5024ab17 594 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
dea3101e 595 ndlp->nlp_state = NLP_STE_UNUSED_NODE;
596 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
c9f8735b 597 return ndlp->nlp_state;
dea3101e 598 }
599 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 600 return NLP_STE_FREED_NODE;
dea3101e 601}
602
603static uint32_t
604lpfc_rcv_els_unused_node(struct lpfc_hba * phba,
605 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
606{
607 lpfc_issue_els_logo(phba, ndlp, 0);
608 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
c9f8735b 609 return ndlp->nlp_state;
dea3101e 610}
611
612static uint32_t
613lpfc_rcv_logo_unused_node(struct lpfc_hba * phba,
614 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
615{
616 struct lpfc_iocbq *cmdiocb;
617
618 cmdiocb = (struct lpfc_iocbq *) arg;
619
620 spin_lock_irq(phba->host->host_lock);
621 ndlp->nlp_flag |= NLP_LOGO_ACC;
622 spin_unlock_irq(phba->host->host_lock);
623 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
624 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
625
c9f8735b 626 return ndlp->nlp_state;
dea3101e 627}
628
629static uint32_t
630lpfc_cmpl_logo_unused_node(struct lpfc_hba * phba,
631 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
632{
633 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 634 return NLP_STE_FREED_NODE;
dea3101e 635}
636
637static uint32_t
638lpfc_device_rm_unused_node(struct lpfc_hba * phba,
639 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
640{
641 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 642 return NLP_STE_FREED_NODE;
dea3101e 643}
644
645static uint32_t
646lpfc_rcv_plogi_plogi_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
647 void *arg, uint32_t evt)
648{
649 struct lpfc_iocbq *cmdiocb = arg;
650 struct lpfc_dmabuf *pcmd;
651 struct serv_parm *sp;
652 uint32_t *lp;
653 struct ls_rjt stat;
654 int port_cmp;
655
656 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
657 lp = (uint32_t *) pcmd->virt;
658 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
659
660 memset(&stat, 0, sizeof (struct ls_rjt));
661
662 /* For a PLOGI, we only accept if our portname is less
663 * than the remote portname.
664 */
665 phba->fc_stat.elsLogiCol++;
666 port_cmp = memcmp(&phba->fc_portname, &sp->portName,
667 sizeof (struct lpfc_name));
668
669 if (port_cmp >= 0) {
670 /* Reject this request because the remote node will accept
671 ours */
672 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
673 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
674 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
675 }
676 else {
677 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
678 } /* if our portname was less */
679
c9f8735b
JW		 680 return ndlp->nlp_state;
681}
682
683static uint32_t
684lpfc_rcv_logo_plogi_issue(struct lpfc_hba * phba,
685 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
686{
687 struct lpfc_iocbq *cmdiocb;
688
689 cmdiocb = (struct lpfc_iocbq *) arg;
690
691 /* software abort outstanding PLOGI */
692 lpfc_els_abort(phba, ndlp, 1);
693
694 lpfc_rcv_logo(phba, ndlp, cmdiocb);
695 return ndlp->nlp_state;
dea3101e 696}
697
698static uint32_t
699lpfc_rcv_els_plogi_issue(struct lpfc_hba * phba,
700 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
701{
702 struct lpfc_iocbq *cmdiocb;
703
704 cmdiocb = (struct lpfc_iocbq *) arg;
705
706 /* software abort outstanding PLOGI */
707 lpfc_els_abort(phba, ndlp, 1);
dea3101e 708
709 if (evt == NLP_EVT_RCV_LOGO) {
710 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
711 }
712 else {
713 lpfc_issue_els_logo(phba, ndlp, 0);
714 }
715
716 /* Put ndlp in npr list set plogi timer for 1 sec */
5024ab17
JW		 717 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
718 spin_lock_irq(phba->host->host_lock);
719 ndlp->nlp_flag |= NLP_DELAY_TMO;
720 spin_unlock_irq(phba->host->host_lock);
721 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
722 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
dea3101e 723 ndlp->nlp_state = NLP_STE_NPR_NODE;
724 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
725
c9f8735b 726 return ndlp->nlp_state;
dea3101e 727}
728
729static uint32_t
730lpfc_cmpl_plogi_plogi_issue(struct lpfc_hba * phba,
731 struct lpfc_nodelist * ndlp, void *arg,
732 uint32_t evt)
733{
734 struct lpfc_iocbq *cmdiocb, *rspiocb;
735 struct lpfc_dmabuf *pcmd, *prsp;
736 uint32_t *lp;
737 IOCB_t *irsp;
738 struct serv_parm *sp;
739 LPFC_MBOXQ_t *mbox;
740
741 cmdiocb = (struct lpfc_iocbq *) arg;
742 rspiocb = cmdiocb->context_un.rsp_iocb;
743
744 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
5024ab17 745 /* Recovery from PLOGI collision logic */
c9f8735b 746 return ndlp->nlp_state;
dea3101e 747 }
748
749 irsp = &rspiocb->iocb;
750
751 if (irsp->ulpStatus)
752 goto out;
753
754 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
755
756 prsp = list_get_first(&pcmd->list,
757 struct lpfc_dmabuf,
758 list);
759 lp = (uint32_t *) prsp->virt;
760
761 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
762 if (!lpfc_check_sparm(phba, ndlp, sp, CLASS3))
763 goto out;
764
765 /* PLOGI chkparm OK */
766 lpfc_printf_log(phba,
767 KERN_INFO,
768 LOG_ELS,
769 "%d:0121 PLOGI chkparm OK "
770 "Data: x%x x%x x%x x%x\n",
771 phba->brd_no,
772 ndlp->nlp_DID, ndlp->nlp_state,
773 ndlp->nlp_flag, ndlp->nlp_rpi);
774
775 if ((phba->cfg_fcp_class == 2) &&
776 (sp->cls2.classValid)) {
777 ndlp->nlp_fcp_info |= CLASS2;
778 } else {
779 ndlp->nlp_fcp_info |= CLASS3;
780 }
781 ndlp->nlp_class_sup = 0;
782 if (sp->cls1.classValid)
783 ndlp->nlp_class_sup |= FC_COS_CLASS1;
784 if (sp->cls2.classValid)
785 ndlp->nlp_class_sup |= FC_COS_CLASS2;
786 if (sp->cls3.classValid)
787 ndlp->nlp_class_sup |= FC_COS_CLASS3;
788 if (sp->cls4.classValid)
789 ndlp->nlp_class_sup |= FC_COS_CLASS4;
790 ndlp->nlp_maxframe =
791 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
792 sp->cmn.bbRcvSizeLsb;
793
794 if (!(mbox = mempool_alloc(phba->mbox_mem_pool,
795 GFP_KERNEL)))
796 goto out;
797
798 lpfc_unreg_rpi(phba, ndlp);
799 if (lpfc_reg_login
800 (phba, irsp->un.elsreq64.remoteID,
801 (uint8_t *) sp, mbox, 0) == 0) {
802 /* set_slim mailbox command needs to
803 * execute first, queue this command to
804 * be processed later.
805 */
806 switch(ndlp->nlp_DID) {
807 case NameServer_DID:
808 mbox->mbox_cmpl =
809 lpfc_mbx_cmpl_ns_reg_login;
810 break;
811 case FDMI_DID:
812 mbox->mbox_cmpl =
813 lpfc_mbx_cmpl_fdmi_reg_login;
814 break;
815 default:
816 mbox->mbox_cmpl =
817 lpfc_mbx_cmpl_reg_login;
818 }
819 mbox->context2 = ndlp;
820 if (lpfc_sli_issue_mbox(phba, mbox,
821 (MBX_NOWAIT | MBX_STOP_IOCB))
822 != MBX_NOT_FINISHED) {
823 ndlp->nlp_state =
824 NLP_STE_REG_LOGIN_ISSUE;
825 lpfc_nlp_list(phba, ndlp,
826 NLP_REGLOGIN_LIST);
c9f8735b 827 return ndlp->nlp_state;
dea3101e 828 }
829 mempool_free(mbox, phba->mbox_mem_pool);
830 } else {
831 mempool_free(mbox, phba->mbox_mem_pool);
832 }
833
834
835 out:
836 /* Free this node since the driver cannot login or has the wrong
837 sparm */
838 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 839 return NLP_STE_FREED_NODE;
dea3101e 840}
841
842static uint32_t
843lpfc_device_rm_plogi_issue(struct lpfc_hba * phba,
844 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
845{
846 /* software abort outstanding PLOGI */
847 lpfc_els_abort(phba, ndlp, 1);
848
849 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 850 return NLP_STE_FREED_NODE;
dea3101e 851}
852
853static uint32_t
854lpfc_device_recov_plogi_issue(struct lpfc_hba * phba,
855 struct lpfc_nodelist * ndlp, void *arg,
856 uint32_t evt)
857{
858 /* software abort outstanding PLOGI */
859 lpfc_els_abort(phba, ndlp, 1);
860
5024ab17 861 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
dea3101e 862 ndlp->nlp_state = NLP_STE_NPR_NODE;
863 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
864 spin_lock_irq(phba->host->host_lock);
865 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
866 spin_unlock_irq(phba->host->host_lock);
867
c9f8735b 868 return ndlp->nlp_state;
dea3101e 869}
870
871static uint32_t
872lpfc_rcv_plogi_adisc_issue(struct lpfc_hba * phba,
873 struct lpfc_nodelist * ndlp, void *arg,
874 uint32_t evt)
875{
876 struct lpfc_iocbq *cmdiocb;
877
878 /* software abort outstanding ADISC */
879 lpfc_els_abort(phba, ndlp, 1);
880
881 cmdiocb = (struct lpfc_iocbq *) arg;
882
883 if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
c9f8735b 884 return ndlp->nlp_state;
dea3101e 885 }
5024ab17 886 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
dea3101e 887 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
888 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
889 lpfc_issue_els_plogi(phba, ndlp, 0);
890
c9f8735b 891 return ndlp->nlp_state;
dea3101e 892}
893
894static uint32_t
895lpfc_rcv_prli_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_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 904 return ndlp->nlp_state;
dea3101e 905}
906
907static uint32_t
908lpfc_rcv_logo_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 /* software abort outstanding ADISC */
917 lpfc_els_abort(phba, ndlp, 0);
918
919 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 920 return ndlp->nlp_state;
dea3101e 921}
922
923static uint32_t
924lpfc_rcv_padisc_adisc_issue(struct lpfc_hba * phba,
925 struct lpfc_nodelist * ndlp, void *arg,
926 uint32_t evt)
927{
928 struct lpfc_iocbq *cmdiocb;
929
930 cmdiocb = (struct lpfc_iocbq *) arg;
931
932 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 933 return ndlp->nlp_state;
dea3101e 934}
935
936static uint32_t
937lpfc_rcv_prlo_adisc_issue(struct lpfc_hba * phba,
938 struct lpfc_nodelist * ndlp, void *arg,
939 uint32_t evt)
940{
941 struct lpfc_iocbq *cmdiocb;
942
943 cmdiocb = (struct lpfc_iocbq *) arg;
944
945 /* Treat like rcv logo */
946 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 947 return ndlp->nlp_state;
dea3101e 948}
949
950static uint32_t
951lpfc_cmpl_adisc_adisc_issue(struct lpfc_hba * phba,
952 struct lpfc_nodelist * ndlp, void *arg,
953 uint32_t evt)
954{
955 struct lpfc_iocbq *cmdiocb, *rspiocb;
956 IOCB_t *irsp;
957 ADISC *ap;
958
959 cmdiocb = (struct lpfc_iocbq *) arg;
960 rspiocb = cmdiocb->context_un.rsp_iocb;
961
962 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
963 irsp = &rspiocb->iocb;
964
965 if ((irsp->ulpStatus) ||
966 (!lpfc_check_adisc(phba, ndlp, &ap->nodeName, &ap->portName))) {
dea3101e 967 /* 1 sec timeout */
968 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
969 spin_lock_irq(phba->host->host_lock);
970 ndlp->nlp_flag |= NLP_DELAY_TMO;
971 spin_unlock_irq(phba->host->host_lock);
5024ab17 972 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 973
974 memset(&ndlp->nlp_nodename, 0, sizeof (struct lpfc_name));
975 memset(&ndlp->nlp_portname, 0, sizeof (struct lpfc_name));
976
5024ab17 977 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
dea3101e 978 ndlp->nlp_state = NLP_STE_NPR_NODE;
979 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
980 lpfc_unreg_rpi(phba, ndlp);
c9f8735b 981 return ndlp->nlp_state;
dea3101e 982 }
5024ab17 983
2501322e 984 if (ndlp->nlp_type & NLP_FCP_TARGET) {
5024ab17 985 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2501322e
JSEC		 986 ndlp->nlp_state = NLP_STE_MAPPED_NODE;
987 lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
988 } else {
5024ab17 989 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2501322e
JSEC		 990 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
991 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
992 }
c9f8735b 993 return ndlp->nlp_state;
dea3101e 994}
995
996static uint32_t
997lpfc_device_rm_adisc_issue(struct lpfc_hba * phba,
998 struct lpfc_nodelist * ndlp, void *arg,
999 uint32_t evt)
1000{
1001 /* software abort outstanding ADISC */
1002 lpfc_els_abort(phba, ndlp, 1);
1003
1004 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 1005 return NLP_STE_FREED_NODE;
dea3101e 1006}
1007
1008static uint32_t
1009lpfc_device_recov_adisc_issue(struct lpfc_hba * phba,
1010 struct lpfc_nodelist * ndlp, void *arg,
1011 uint32_t evt)
1012{
1013 /* software abort outstanding ADISC */
1014 lpfc_els_abort(phba, ndlp, 1);
1015
5024ab17 1016 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
dea3101e 1017 ndlp->nlp_state = NLP_STE_NPR_NODE;
1018 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1019 spin_lock_irq(phba->host->host_lock);
1020 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
c9f8735b 1021 ndlp->nlp_flag |= NLP_NPR_ADISC;
dea3101e 1022 spin_unlock_irq(phba->host->host_lock);
1023
c9f8735b 1024 return ndlp->nlp_state;
dea3101e 1025}
1026
1027static uint32_t
1028lpfc_rcv_plogi_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_plogi(phba, ndlp, cmdiocb);
c9f8735b 1037 return ndlp->nlp_state;
dea3101e 1038}
1039
1040static uint32_t
1041lpfc_rcv_prli_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
1049 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 1050 return ndlp->nlp_state;
dea3101e 1051}
1052
1053static uint32_t
1054lpfc_rcv_logo_reglogin_issue(struct lpfc_hba * phba,
1055 struct lpfc_nodelist * ndlp, void *arg,
1056 uint32_t evt)
1057{
1058 struct lpfc_iocbq *cmdiocb;
1059
1060 cmdiocb = (struct lpfc_iocbq *) arg;
1061
1062 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1063 return ndlp->nlp_state;
dea3101e 1064}
1065
1066static uint32_t
1067lpfc_rcv_padisc_reglogin_issue(struct lpfc_hba * phba,
1068 struct lpfc_nodelist * ndlp, void *arg,
1069 uint32_t evt)
1070{
1071 struct lpfc_iocbq *cmdiocb;
1072
1073 cmdiocb = (struct lpfc_iocbq *) arg;
1074
1075 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 1076 return ndlp->nlp_state;
dea3101e 1077}
1078
1079static uint32_t
1080lpfc_rcv_prlo_reglogin_issue(struct lpfc_hba * phba,
1081 struct lpfc_nodelist * ndlp, void *arg,
1082 uint32_t evt)
1083{
1084 struct lpfc_iocbq *cmdiocb;
1085
1086 cmdiocb = (struct lpfc_iocbq *) arg;
1087 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
c9f8735b 1088 return ndlp->nlp_state;
dea3101e 1089}
1090
1091static uint32_t
1092lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_hba * phba,
1093 struct lpfc_nodelist * ndlp,
1094 void *arg, uint32_t evt)
1095{
1096 LPFC_MBOXQ_t *pmb;
1097 MAILBOX_t *mb;
1098 uint32_t did;
1099
1100 pmb = (LPFC_MBOXQ_t *) arg;
1101 mb = &pmb->mb;
1102 did = mb->un.varWords[1];
1103 if (mb->mbxStatus) {
1104 /* RegLogin failed */
1105 lpfc_printf_log(phba,
1106 KERN_ERR,
1107 LOG_DISCOVERY,
1108 "%d:0246 RegLogin failed Data: x%x x%x x%x\n",
1109 phba->brd_no,
1110 did, mb->mbxStatus, phba->hba_state);
1111
5024ab17 1112 /* Put ndlp in npr list set plogi timer for 1 sec */
dea3101e 1113 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1114 spin_lock_irq(phba->host->host_lock);
1115 ndlp->nlp_flag |= NLP_DELAY_TMO;
1116 spin_unlock_irq(phba->host->host_lock);
5024ab17 1117 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1118
1119 lpfc_issue_els_logo(phba, ndlp, 0);
5024ab17 1120 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
dea3101e 1121 ndlp->nlp_state = NLP_STE_NPR_NODE;
1122 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
c9f8735b 1123 return ndlp->nlp_state;
dea3101e 1124 }
1125
dea3101e 1126 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1127
1128 /* Only if we are not a fabric nport do we issue PRLI */
1129 if (!(ndlp->nlp_type & NLP_FABRIC)) {
5024ab17 1130 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
dea3101e 1131 ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
1132 lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
1133 lpfc_issue_els_prli(phba, ndlp, 0);
1134 } else {
5024ab17 1135 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
dea3101e 1136 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1137 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1138 }
c9f8735b 1139 return ndlp->nlp_state;
dea3101e 1140}
1141
1142static uint32_t
1143lpfc_device_rm_reglogin_issue(struct lpfc_hba * phba,
1144 struct lpfc_nodelist * ndlp, void *arg,
1145 uint32_t evt)
1146{
1147 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 1148 return NLP_STE_FREED_NODE;
dea3101e 1149}
1150
1151static uint32_t
1152lpfc_device_recov_reglogin_issue(struct lpfc_hba * phba,
1153 struct lpfc_nodelist * ndlp, void *arg,
1154 uint32_t evt)
1155{
5024ab17 1156 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
dea3101e 1157 ndlp->nlp_state = NLP_STE_NPR_NODE;
1158 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1159 spin_lock_irq(phba->host->host_lock);
1160 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1161 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1162 return ndlp->nlp_state;
dea3101e 1163}
1164
1165static uint32_t
1166lpfc_rcv_plogi_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_plogi(phba, ndlp, cmdiocb);
c9f8735b 1174 return ndlp->nlp_state;
dea3101e 1175}
1176
1177static uint32_t
1178lpfc_rcv_prli_prli_issue(struct lpfc_hba * phba,
1179 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1180{
1181 struct lpfc_iocbq *cmdiocb;
1182
1183 cmdiocb = (struct lpfc_iocbq *) arg;
1184
1185 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 1186 return ndlp->nlp_state;
dea3101e 1187}
1188
1189static uint32_t
1190lpfc_rcv_logo_prli_issue(struct lpfc_hba * phba,
1191 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1192{
1193 struct lpfc_iocbq *cmdiocb;
1194
1195 cmdiocb = (struct lpfc_iocbq *) arg;
1196
1197 /* Software abort outstanding PRLI before sending acc */
1198 lpfc_els_abort(phba, ndlp, 1);
1199
1200 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1201 return ndlp->nlp_state;
dea3101e 1202}
1203
1204static uint32_t
1205lpfc_rcv_padisc_prli_issue(struct lpfc_hba * phba,
1206 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1207{
1208 struct lpfc_iocbq *cmdiocb;
1209
1210 cmdiocb = (struct lpfc_iocbq *) arg;
1211
1212 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 1213 return ndlp->nlp_state;
dea3101e 1214}
1215
1216/* This routine is envoked when we rcv a PRLO request from a nport
1217 * we are logged into. We should send back a PRLO rsp setting the
1218 * appropriate bits.
1219 * NEXT STATE = PRLI_ISSUE
1220 */
1221static uint32_t
1222lpfc_rcv_prlo_prli_issue(struct lpfc_hba * phba,
1223 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1224{
1225 struct lpfc_iocbq *cmdiocb;
1226
1227 cmdiocb = (struct lpfc_iocbq *) arg;
1228 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
c9f8735b 1229 return ndlp->nlp_state;
dea3101e 1230}
1231
1232static uint32_t
1233lpfc_cmpl_prli_prli_issue(struct lpfc_hba * phba,
1234 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1235{
1236 struct lpfc_iocbq *cmdiocb, *rspiocb;
1237 IOCB_t *irsp;
1238 PRLI *npr;
1239
1240 cmdiocb = (struct lpfc_iocbq *) arg;
1241 rspiocb = cmdiocb->context_un.rsp_iocb;
1242 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1243
1244 irsp = &rspiocb->iocb;
1245 if (irsp->ulpStatus) {
5024ab17 1246 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
dea3101e 1247 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1248 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
c9f8735b 1249 return ndlp->nlp_state;
dea3101e 1250 }
1251
1252 /* Check out PRLI rsp */
1253 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1254 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1255 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1256 (npr->prliType == PRLI_FCP_TYPE)) {
1257 if (npr->initiatorFunc)
1258 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1259 if (npr->targetFunc)
1260 ndlp->nlp_type |= NLP_FCP_TARGET;
1261 if (npr->Retry)
1262 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1263 }
1264
5024ab17 1265 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
dea3101e 1266 ndlp->nlp_state = NLP_STE_MAPPED_NODE;
1267 lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
c9f8735b 1268 return ndlp->nlp_state;
dea3101e 1269}
1270
1271/*! lpfc_device_rm_prli_issue
1272 *
1273 * \pre
1274 * \post
1275 * \param phba
1276 * \param ndlp
1277 * \param arg
1278 * \param evt
1279 * \return uint32_t
1280 *
1281 * \b Description:
1282 * This routine is envoked when we a request to remove a nport we are in the
1283 * process of PRLIing. We should software abort outstanding prli, unreg
1284 * login, send a logout. We will change node state to UNUSED_NODE, put it
1285 * on plogi list so it can be freed when LOGO completes.
1286 *
1287 */
1288static uint32_t
1289lpfc_device_rm_prli_issue(struct lpfc_hba * phba,
1290 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1291{
1292 /* software abort outstanding PRLI */
1293 lpfc_els_abort(phba, ndlp, 1);
1294
1295 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 1296 return NLP_STE_FREED_NODE;
dea3101e 1297}
1298
1299
1300/*! lpfc_device_recov_prli_issue
1301 *
1302 * \pre
1303 * \post
1304 * \param phba
1305 * \param ndlp
1306 * \param arg
1307 * \param evt
1308 * \return uint32_t
1309 *
1310 * \b Description:
1311 * The routine is envoked when the state of a device is unknown, like
1312 * during a link down. We should remove the nodelist entry from the
1313 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1314 * outstanding PRLI command, then free the node entry.
1315 */
1316static uint32_t
1317lpfc_device_recov_prli_issue(struct lpfc_hba * phba,
1318 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1319{
1320 /* software abort outstanding PRLI */
1321 lpfc_els_abort(phba, ndlp, 1);
1322
5024ab17 1323 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
dea3101e 1324 ndlp->nlp_state = NLP_STE_NPR_NODE;
1325 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1326 spin_lock_irq(phba->host->host_lock);
1327 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1328 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1329 return ndlp->nlp_state;
dea3101e 1330}
1331
1332static uint32_t
1333lpfc_rcv_plogi_unmap_node(struct lpfc_hba * phba,
1334 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1335{
1336 struct lpfc_iocbq *cmdiocb;
1337
1338 cmdiocb = (struct lpfc_iocbq *) arg;
1339
1340 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
c9f8735b 1341 return ndlp->nlp_state;
dea3101e 1342}
1343
1344static uint32_t
1345lpfc_rcv_prli_unmap_node(struct lpfc_hba * phba,
1346 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1347{
1348 struct lpfc_iocbq *cmdiocb;
1349
1350 cmdiocb = (struct lpfc_iocbq *) arg;
1351
1352 lpfc_rcv_prli(phba, ndlp, cmdiocb);
1353 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 1354 return ndlp->nlp_state;
dea3101e 1355}
1356
1357static uint32_t
1358lpfc_rcv_logo_unmap_node(struct lpfc_hba * phba,
1359 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1360{
1361 struct lpfc_iocbq *cmdiocb;
1362
1363 cmdiocb = (struct lpfc_iocbq *) arg;
1364
1365 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1366 return ndlp->nlp_state;
dea3101e 1367}
1368
1369static uint32_t
1370lpfc_rcv_padisc_unmap_node(struct lpfc_hba * phba,
1371 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1372{
1373 struct lpfc_iocbq *cmdiocb;
1374
1375 cmdiocb = (struct lpfc_iocbq *) arg;
1376
1377 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 1378 return ndlp->nlp_state;
dea3101e 1379}
1380
1381static uint32_t
1382lpfc_rcv_prlo_unmap_node(struct lpfc_hba * phba,
1383 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1384{
1385 struct lpfc_iocbq *cmdiocb;
1386
1387 cmdiocb = (struct lpfc_iocbq *) arg;
1388
c9f8735b
JW		 1389 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
1390 return ndlp->nlp_state;
dea3101e 1391}
1392
1393static uint32_t
1394lpfc_device_recov_unmap_node(struct lpfc_hba * phba,
1395 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1396{
5024ab17 1397 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
dea3101e 1398 ndlp->nlp_state = NLP_STE_NPR_NODE;
1399 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1400 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1401 lpfc_disc_set_adisc(phba, ndlp);
1402
c9f8735b 1403 return ndlp->nlp_state;
dea3101e 1404}
1405
1406static uint32_t
1407lpfc_rcv_plogi_mapped_node(struct lpfc_hba * phba,
1408 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1409{
1410 struct lpfc_iocbq *cmdiocb;
1411
1412 cmdiocb = (struct lpfc_iocbq *) arg;
1413
1414 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
c9f8735b 1415 return ndlp->nlp_state;
dea3101e 1416}
1417
1418static uint32_t
1419lpfc_rcv_prli_mapped_node(struct lpfc_hba * phba,
1420 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1421{
1422 struct lpfc_iocbq *cmdiocb;
1423
1424 cmdiocb = (struct lpfc_iocbq *) arg;
1425
1426 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 1427 return ndlp->nlp_state;
dea3101e 1428}
1429
1430static uint32_t
1431lpfc_rcv_logo_mapped_node(struct lpfc_hba * phba,
1432 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1433{
1434 struct lpfc_iocbq *cmdiocb;
1435
1436 cmdiocb = (struct lpfc_iocbq *) arg;
1437
1438 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1439 return ndlp->nlp_state;
dea3101e 1440}
1441
1442static uint32_t
1443lpfc_rcv_padisc_mapped_node(struct lpfc_hba * phba,
1444 struct lpfc_nodelist * ndlp, void *arg,
1445 uint32_t evt)
1446{
1447 struct lpfc_iocbq *cmdiocb;
1448
1449 cmdiocb = (struct lpfc_iocbq *) arg;
1450
1451 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 1452 return ndlp->nlp_state;
dea3101e 1453}
1454
1455static uint32_t
1456lpfc_rcv_prlo_mapped_node(struct lpfc_hba * phba,
1457 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1458{
1459 struct lpfc_iocbq *cmdiocb;
1460
1461 cmdiocb = (struct lpfc_iocbq *) arg;
1462
1463 /* flush the target */
1464 spin_lock_irq(phba->host->host_lock);
1465 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
1466 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
1467 spin_unlock_irq(phba->host->host_lock);
1468
1469 /* Treat like rcv logo */
1470 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1471 return ndlp->nlp_state;
dea3101e 1472}
1473
1474static uint32_t
1475lpfc_device_recov_mapped_node(struct lpfc_hba * phba,
1476 struct lpfc_nodelist * ndlp, void *arg,
1477 uint32_t evt)
1478{
5024ab17 1479 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
dea3101e 1480 ndlp->nlp_state = NLP_STE_NPR_NODE;
1481 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1482 spin_lock_irq(phba->host->host_lock);
1483 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1484 spin_unlock_irq(phba->host->host_lock);
1485 lpfc_disc_set_adisc(phba, ndlp);
c9f8735b 1486 return ndlp->nlp_state;
dea3101e 1487}
1488
1489static uint32_t
1490lpfc_rcv_plogi_npr_node(struct lpfc_hba * phba,
1491 struct lpfc_nodelist * ndlp, void *arg,
1492 uint32_t evt)
1493{
1494 struct lpfc_iocbq *cmdiocb;
1495
1496 cmdiocb = (struct lpfc_iocbq *) arg;
1497
1498 /* Ignore PLOGI if we have an outstanding LOGO */
1499 if (ndlp->nlp_flag & NLP_LOGO_SND) {
c9f8735b 1500 return ndlp->nlp_state;
dea3101e 1501 }
1502
1503 if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
1504 spin_lock_irq(phba->host->host_lock);
1505 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
1506 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1507 return ndlp->nlp_state;
dea3101e 1508 }
1509
1510 /* send PLOGI immediately, move to PLOGI issue state */
1511 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
5024ab17 1512 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
dea3101e 1513 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1514 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1515 lpfc_issue_els_plogi(phba, ndlp, 0);
1516 }
c9f8735b 1517 return ndlp->nlp_state;
dea3101e 1518}
1519
1520static uint32_t
1521lpfc_rcv_prli_npr_node(struct lpfc_hba * phba,
1522 struct lpfc_nodelist * ndlp, void *arg,
1523 uint32_t evt)
1524{
1525 struct lpfc_iocbq *cmdiocb;
1526 struct ls_rjt stat;
1527
1528 cmdiocb = (struct lpfc_iocbq *) arg;
1529
1530 memset(&stat, 0, sizeof (struct ls_rjt));
1531 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1532 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1533 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
1534
1535 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1536 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
c9f8735b
JW		 1537 spin_lock_irq(phba->host->host_lock);
1538 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1539 spin_unlock_irq(phba->host->host_lock);
5024ab17 1540 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
dea3101e 1541 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1542 lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1543 lpfc_issue_els_adisc(phba, ndlp, 0);
1544 } else {
5024ab17 1545 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
dea3101e 1546 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1547 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1548 lpfc_issue_els_plogi(phba, ndlp, 0);
1549 }
1550 }
c9f8735b 1551 return ndlp->nlp_state;
dea3101e 1552}
1553
1554static uint32_t
1555lpfc_rcv_logo_npr_node(struct lpfc_hba * phba,
1556 struct lpfc_nodelist * ndlp, void *arg,
1557 uint32_t evt)
1558{
1559 struct lpfc_iocbq *cmdiocb;
1560
1561 cmdiocb = (struct lpfc_iocbq *) arg;
1562
1563 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1564 return ndlp->nlp_state;
dea3101e 1565}
1566
1567static uint32_t
1568lpfc_rcv_padisc_npr_node(struct lpfc_hba * phba,
1569 struct lpfc_nodelist * ndlp, void *arg,
1570 uint32_t evt)
1571{
1572 struct lpfc_iocbq *cmdiocb;
1573
1574 cmdiocb = (struct lpfc_iocbq *) arg;
1575
1576 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
1577
1578 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1579 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
5024ab17 1580 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
dea3101e 1581 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1582 lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1583 lpfc_issue_els_adisc(phba, ndlp, 0);
1584 } else {
5024ab17 1585 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
dea3101e 1586 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1587 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1588 lpfc_issue_els_plogi(phba, ndlp, 0);
1589 }
1590 }
c9f8735b 1591 return ndlp->nlp_state;
dea3101e 1592}
1593
1594static uint32_t
1595lpfc_rcv_prlo_npr_node(struct lpfc_hba * phba,
1596 struct lpfc_nodelist * ndlp, void *arg,
1597 uint32_t evt)
1598{
1599 struct lpfc_iocbq *cmdiocb;
1600
1601 cmdiocb = (struct lpfc_iocbq *) arg;
1602
c9f8735b
JW		 1603 spin_lock_irq(phba->host->host_lock);
1604 ndlp->nlp_flag |= NLP_LOGO_ACC;
1605 spin_unlock_irq(phba->host->host_lock);
1606
dea3101e 1607 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
1608
c9f8735b
JW		 1609 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1610 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1611 spin_lock_irq(phba->host->host_lock);
1612 ndlp->nlp_flag |= NLP_DELAY_TMO;
1613 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1614 spin_unlock_irq(phba->host->host_lock);
5024ab17 1615 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b
JW		 1616 } else {
1617 spin_lock_irq(phba->host->host_lock);
1618 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1619 spin_unlock_irq(phba->host->host_lock);
dea3101e 1620 }
c9f8735b
JW		 1621 return ndlp->nlp_state;
1622}
dea3101e 1623
c9f8735b
JW		 1624static uint32_t
1625lpfc_cmpl_plogi_npr_node(struct lpfc_hba * phba,
1626 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1627{
1628 struct lpfc_iocbq *cmdiocb, *rspiocb;
1629
1630 cmdiocb = (struct lpfc_iocbq *) arg;
1631 rspiocb = cmdiocb->context_un.rsp_iocb;
1632 return ndlp->nlp_state;
1633}
1634
1635static uint32_t
1636lpfc_cmpl_prli_npr_node(struct lpfc_hba * phba,
1637 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1638{
1639 struct lpfc_iocbq *cmdiocb, *rspiocb;
1640
1641 cmdiocb = (struct lpfc_iocbq *) arg;
1642 rspiocb = cmdiocb->context_un.rsp_iocb;
1643 return ndlp->nlp_state;
dea3101e 1644}
1645
1646static uint32_t
1647lpfc_cmpl_logo_npr_node(struct lpfc_hba * phba,
1648 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1649{
1650 lpfc_unreg_rpi(phba, ndlp);
1651 /* This routine does nothing, just return the current state */
c9f8735b
JW		 1652 return ndlp->nlp_state;
1653}
1654
1655static uint32_t
1656lpfc_cmpl_adisc_npr_node(struct lpfc_hba * phba,
1657 struct lpfc_nodelist * ndlp, void *arg,
1658 uint32_t evt)
1659{
1660 struct lpfc_iocbq *cmdiocb, *rspiocb;
1661
1662 cmdiocb = (struct lpfc_iocbq *) arg;
1663 rspiocb = cmdiocb->context_un.rsp_iocb;
1664 return ndlp->nlp_state;
dea3101e 1665}
1666
1667static uint32_t
1668lpfc_cmpl_reglogin_npr_node(struct lpfc_hba * phba,
1669 struct lpfc_nodelist * ndlp, void *arg,
1670 uint32_t evt)
1671{
1672 LPFC_MBOXQ_t *pmb;
1673 MAILBOX_t *mb;
1674
1675 pmb = (LPFC_MBOXQ_t *) arg;
1676 mb = &pmb->mb;
1677
c9f8735b
JW		 1678 if (!mb->mbxStatus)
1679 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1680
c9f8735b 1681 return ndlp->nlp_state;
dea3101e 1682}
1683
1684static uint32_t
1685lpfc_device_rm_npr_node(struct lpfc_hba * phba,
1686 struct lpfc_nodelist * ndlp, void *arg,
1687 uint32_t evt)
1688{
1689 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 1690 return NLP_STE_FREED_NODE;
dea3101e 1691}
1692
1693static uint32_t
1694lpfc_device_recov_npr_node(struct lpfc_hba * phba,
1695 struct lpfc_nodelist * ndlp, void *arg,
1696 uint32_t evt)
1697{
1698 spin_lock_irq(phba->host->host_lock);
1699 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
6ad42535
JW		 1700 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1701 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1702 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1703 list_del_init(&ndlp->els_retry_evt.evt_listp);
1704 spin_unlock_irq(phba->host->host_lock);
5024ab17 1705 ndlp->nlp_last_elscmd = 0;
6ad42535 1706 del_timer_sync(&ndlp->nlp_delayfunc);
c9f8735b 1707 return ndlp->nlp_state;
6ad42535 1708 }
dea3101e 1709 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1710 return ndlp->nlp_state;
dea3101e 1711}
1712
1713
1714/* This next section defines the NPort Discovery State Machine */
1715
1716/* There are 4 different double linked lists nodelist entries can reside on.
1717 * The plogi list and adisc list are used when Link Up discovery or RSCN
1718 * processing is needed. Each list holds the nodes that we will send PLOGI
1719 * or ADISC on. These lists will keep track of what nodes will be effected
1720 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1721 * The unmapped_list will contain all nodes that we have successfully logged
1722 * into at the Fibre Channel level. The mapped_list will contain all nodes
1723 * that are mapped FCP targets.
1724 */
1725/*
1726 * The bind list is a list of undiscovered (potentially non-existent) nodes
1727 * that we have saved binding information on. This information is used when
1728 * nodes transition from the unmapped to the mapped list.
1729 */
1730/* For UNUSED_NODE state, the node has just been allocated .
1731 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1732 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1733 * and put on the unmapped list. For ADISC processing, the node is taken off
1734 * the ADISC list and placed on either the mapped or unmapped list (depending
1735 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1736 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1737 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1738 * node, the node is taken off the unmapped list. The binding list is checked
1739 * for a valid binding, or a binding is automatically assigned. If binding
1740 * assignment is unsuccessful, the node is left on the unmapped list. If
1741 * binding assignment is successful, the associated binding list entry (if
1742 * any) is removed, and the node is placed on the mapped list.
1743 */
1744/*
1745 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
1746 * lists will receive a DEVICE_RECOVERY event. If the linkdown or nodev timers
1747 * expire, all effected nodes will receive a DEVICE_RM event.
1748 */
1749/*
1750 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
1751 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
1752 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
1753 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
1754 * we will first process the ADISC list. 32 entries are processed initially and
1755 * ADISC is initited for each one. Completions / Events for each node are
1756 * funnelled thru the state machine. As each node finishes ADISC processing, it
1757 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
1758 * waiting, and the ADISC list count is identically 0, then we are done. For
1759 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
1760 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
1761 * list. 32 entries are processed initially and PLOGI is initited for each one.
1762 * Completions / Events for each node are funnelled thru the state machine. As
1763 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
1764 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
1765 * indentically 0, then we are done. We have now completed discovery / RSCN
1766 * handling. Upon completion, ALL nodes should be on either the mapped or
1767 * unmapped lists.
1768 */
1769
1770static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
1771 (struct lpfc_hba *, struct lpfc_nodelist *, void *, uint32_t) = {
1772 /* Action routine Event Current State */
1773 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
1774 lpfc_rcv_els_unused_node, /* RCV_PRLI */
1775 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
1776 lpfc_rcv_els_unused_node, /* RCV_ADISC */
1777 lpfc_rcv_els_unused_node, /* RCV_PDISC */
1778 lpfc_rcv_els_unused_node, /* RCV_PRLO */
1779 lpfc_disc_illegal, /* CMPL_PLOGI */
1780 lpfc_disc_illegal, /* CMPL_PRLI */
1781 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
1782 lpfc_disc_illegal, /* CMPL_ADISC */
1783 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1784 lpfc_device_rm_unused_node, /* DEVICE_RM */
1785 lpfc_disc_illegal, /* DEVICE_RECOVERY */
1786
1787 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
1788 lpfc_rcv_els_plogi_issue, /* RCV_PRLI */
c9f8735b 1789 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
dea3101e 1790 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
1791 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
1792 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
1793 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
1794 lpfc_disc_illegal, /* CMPL_PRLI */
1795 lpfc_disc_illegal, /* CMPL_LOGO */
1796 lpfc_disc_illegal, /* CMPL_ADISC */
1797 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1798 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
1799 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
1800
1801 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
1802 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
1803 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
1804 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
1805 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
1806 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
1807 lpfc_disc_illegal, /* CMPL_PLOGI */
1808 lpfc_disc_illegal, /* CMPL_PRLI */
1809 lpfc_disc_illegal, /* CMPL_LOGO */
1810 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
1811 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1812 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
1813 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
1814
1815 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
1816 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
1817 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
1818 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
1819 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
1820 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
1821 lpfc_disc_illegal, /* CMPL_PLOGI */
1822 lpfc_disc_illegal, /* CMPL_PRLI */
1823 lpfc_disc_illegal, /* CMPL_LOGO */
1824 lpfc_disc_illegal, /* CMPL_ADISC */
1825 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
1826 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
1827 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
1828
1829 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
1830 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
1831 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
1832 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
1833 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
1834 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
1835 lpfc_disc_illegal, /* CMPL_PLOGI */
1836 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
1837 lpfc_disc_illegal, /* CMPL_LOGO */
1838 lpfc_disc_illegal, /* CMPL_ADISC */
1839 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1840 lpfc_device_rm_prli_issue, /* DEVICE_RM */
1841 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
1842
1843 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
1844 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
1845 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
1846 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
1847 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
1848 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
1849 lpfc_disc_illegal, /* CMPL_PLOGI */
1850 lpfc_disc_illegal, /* CMPL_PRLI */
1851 lpfc_disc_illegal, /* CMPL_LOGO */
1852 lpfc_disc_illegal, /* CMPL_ADISC */
1853 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1854 lpfc_disc_illegal, /* DEVICE_RM */
1855 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
1856
1857 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
1858 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
1859 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
1860 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
1861 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
1862 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
1863 lpfc_disc_illegal, /* CMPL_PLOGI */
1864 lpfc_disc_illegal, /* CMPL_PRLI */
1865 lpfc_disc_illegal, /* CMPL_LOGO */
1866 lpfc_disc_illegal, /* CMPL_ADISC */
1867 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1868 lpfc_disc_illegal, /* DEVICE_RM */
1869 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
1870
1871 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
1872 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
1873 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
1874 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
1875 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
1876 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
c9f8735b
JW		 1877 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
1878 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
dea3101e 1879 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
c9f8735b 1880 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
dea3101e 1881 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
1882 lpfc_device_rm_npr_node, /* DEVICE_RM */
1883 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
1884};
1885
1886int
1887lpfc_disc_state_machine(struct lpfc_hba * phba,
1888 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1889{
1890 uint32_t cur_state, rc;
1891 uint32_t(*func) (struct lpfc_hba *, struct lpfc_nodelist *, void *,
1892 uint32_t);
1893
1894 ndlp->nlp_disc_refcnt++;
1895 cur_state = ndlp->nlp_state;
1896
1897 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
1898 lpfc_printf_log(phba,
1899 KERN_INFO,
1900 LOG_DISCOVERY,
1901 "%d:0211 DSM in event x%x on NPort x%x in state %d "
1902 "Data: x%x\n",
1903 phba->brd_no,
1904 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
1905
1906 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
1907 rc = (func) (phba, ndlp, arg, evt);
1908
1909 /* DSM out state <rc> on NPort <nlp_DID> */
1910 lpfc_printf_log(phba,
1911 KERN_INFO,
1912 LOG_DISCOVERY,
1913 "%d:0212 DSM out state %d on NPort x%x Data: x%x\n",
1914 phba->brd_no,
1915 rc, ndlp->nlp_DID, ndlp->nlp_flag);
1916
1917 ndlp->nlp_disc_refcnt--;
1918
1919 /* Check to see if ndlp removal is deferred */
1920 if ((ndlp->nlp_disc_refcnt == 0)
1921 && (ndlp->nlp_flag & NLP_DELAY_REMOVE)) {
1922 spin_lock_irq(phba->host->host_lock);
1923 ndlp->nlp_flag &= ~NLP_DELAY_REMOVE;
1924 spin_unlock_irq(phba->host->host_lock);
1925 lpfc_nlp_remove(phba, ndlp);
c9f8735b 1926 return NLP_STE_FREED_NODE;
dea3101e 1927 }
1928 if (rc == NLP_STE_FREED_NODE)
c9f8735b 1929 return NLP_STE_FREED_NODE;
c9f8735b 1930 return rc;
dea3101e 1931}
Linux 6.x block layer and io_uring tree(s)