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[SCSI] lpfc 8.1.2: Add ERROR and WARM_START modes for diagnostic purposes.
[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
CommitLineData
dea3101e
JB		 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173
JSEC		 3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2005 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e
JB		 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e
JB		 20 *******************************************************************/
21
dea3101e
JB		 22#include <linux/blkdev.h>
23#include <linux/pci.h>
24#include <linux/interrupt.h>
25
91886523 26#include <scsi/scsi.h>
dea3101e
JB		 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
JB		 50
51 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)) != 0)
c9f8735b 52 return 0;
dea3101e
JB		 53
54 /* we match, return success */
c9f8735b 55 return 1;
dea3101e
JB		 56}
57
dea3101e
JB		 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
JB		 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
JB		 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
JB		 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
JB		 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
JB		 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
JB		 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
JB		 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
JB		 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;
265 del_timer_sync(&ndlp->nlp_delayfunc);
266 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
267 list_del_init(&ndlp->els_retry_evt.evt_listp);
268 }
c9f8735b 269 return 0;
dea3101e
JB		 270}
271
272static int
273lpfc_rcv_plogi(struct lpfc_hba * phba,
274 struct lpfc_nodelist * ndlp,
275 struct lpfc_iocbq *cmdiocb)
276{
277 struct lpfc_dmabuf *pcmd;
278 uint32_t *lp;
279 IOCB_t *icmd;
280 struct serv_parm *sp;
281 LPFC_MBOXQ_t *mbox;
282 struct ls_rjt stat;
283 int rc;
284
285 memset(&stat, 0, sizeof (struct ls_rjt));
286 if (phba->hba_state <= LPFC_FLOGI) {
287 /* Before responding to PLOGI, check for pt2pt mode.
288 * If we are pt2pt, with an outstanding FLOGI, abort
289 * the FLOGI and resend it first.
290 */
291 if (phba->fc_flag & FC_PT2PT) {
292 lpfc_els_abort_flogi(phba);
293 if (!(phba->fc_flag & FC_PT2PT_PLOGI)) {
294 /* If the other side is supposed to initiate
295 * the PLOGI anyway, just ACC it now and
296 * move on with discovery.
297 */
298 phba->fc_edtov = FF_DEF_EDTOV;
299 phba->fc_ratov = FF_DEF_RATOV;
300 /* Start discovery - this should just do
301 CLEAR_LA */
302 lpfc_disc_start(phba);
303 }
304 else {
305 lpfc_initial_flogi(phba);
306 }
307 }
308 else {
309 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
310 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
311 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb,
312 ndlp);
313 return 0;
314 }
315 }
316 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
317 lp = (uint32_t *) pcmd->virt;
318 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
319 if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3) == 0)) {
320 /* Reject this request because invalid parameters */
321 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
322 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
323 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
c9f8735b 324 return 0;
dea3101e
JB		 325 }
326 icmd = &cmdiocb->iocb;
327
328 /* PLOGI chkparm OK */
329 lpfc_printf_log(phba,
330 KERN_INFO,
331 LOG_ELS,
332 "%d:0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
333 phba->brd_no,
334 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
335 ndlp->nlp_rpi);
336
337 if ((phba->cfg_fcp_class == 2) &&
338 (sp->cls2.classValid)) {
339 ndlp->nlp_fcp_info |= CLASS2;
340 } else {
341 ndlp->nlp_fcp_info |= CLASS3;
342 }
343 ndlp->nlp_class_sup = 0;
344 if (sp->cls1.classValid)
345 ndlp->nlp_class_sup |= FC_COS_CLASS1;
346 if (sp->cls2.classValid)
347 ndlp->nlp_class_sup |= FC_COS_CLASS2;
348 if (sp->cls3.classValid)
349 ndlp->nlp_class_sup |= FC_COS_CLASS3;
350 if (sp->cls4.classValid)
351 ndlp->nlp_class_sup |= FC_COS_CLASS4;
352 ndlp->nlp_maxframe =
353 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
354
355 /* no need to reg_login if we are already in one of these states */
356 switch(ndlp->nlp_state) {
357 case NLP_STE_NPR_NODE:
358 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
359 break;
360 case NLP_STE_REG_LOGIN_ISSUE:
361 case NLP_STE_PRLI_ISSUE:
362 case NLP_STE_UNMAPPED_NODE:
363 case NLP_STE_MAPPED_NODE:
364 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, 0);
c9f8735b 365 return 1;
dea3101e
JB		 366 }
367
368 if ((phba->fc_flag & FC_PT2PT)
369 && !(phba->fc_flag & FC_PT2PT_PLOGI)) {
370 /* rcv'ed PLOGI decides what our NPortId will be */
371 phba->fc_myDID = icmd->un.rcvels.parmRo;
372 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
373 if (mbox == NULL)
374 goto out;
375 lpfc_config_link(phba, mbox);
376 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
377 rc = lpfc_sli_issue_mbox
378 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
379 if (rc == MBX_NOT_FINISHED) {
380 mempool_free( mbox, phba->mbox_mem_pool);
381 goto out;
382 }
383
384 lpfc_can_disctmo(phba);
385 }
386 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
387 if (mbox == NULL)
388 goto out;
389
390 if (lpfc_reg_login(phba, icmd->un.rcvels.remoteID,
391 (uint8_t *) sp, mbox, 0)) {
392 mempool_free( mbox, phba->mbox_mem_pool);
393 goto out;
394 }
395
396 /* ACC PLOGI rsp command needs to execute first,
397 * queue this mbox command to be processed later.
398 */
399 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
400 mbox->context2 = ndlp;
401 ndlp->nlp_flag |= NLP_ACC_REGLOGIN;
402
403 /* If there is an outstanding PLOGI issued, abort it before
404 * sending ACC rsp to PLOGI recieved.
405 */
406 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
407 /* software abort outstanding PLOGI */
408 lpfc_els_abort(phba, ndlp, 1);
409 }
410 ndlp->nlp_flag |= NLP_RCV_PLOGI;
411 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0);
c9f8735b 412 return 1;
dea3101e
JB		 413
414out:
415 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
416 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
417 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
c9f8735b 418 return 0;
dea3101e
JB		 419}
420
421static int
422lpfc_rcv_padisc(struct lpfc_hba * phba,
423 struct lpfc_nodelist * ndlp,
424 struct lpfc_iocbq *cmdiocb)
425{
426 struct lpfc_dmabuf *pcmd;
427 struct serv_parm *sp;
428 struct lpfc_name *pnn, *ppn;
429 struct ls_rjt stat;
430 ADISC *ap;
431 IOCB_t *icmd;
432 uint32_t *lp;
433 uint32_t cmd;
434
435 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
436 lp = (uint32_t *) pcmd->virt;
437
438 cmd = *lp++;
439 if (cmd == ELS_CMD_ADISC) {
440 ap = (ADISC *) lp;
441 pnn = (struct lpfc_name *) & ap->nodeName;
442 ppn = (struct lpfc_name *) & ap->portName;
443 } else {
444 sp = (struct serv_parm *) lp;
445 pnn = (struct lpfc_name *) & sp->nodeName;
446 ppn = (struct lpfc_name *) & sp->portName;
447 }
448
449 icmd = &cmdiocb->iocb;
450 if ((icmd->ulpStatus == 0) &&
451 (lpfc_check_adisc(phba, ndlp, pnn, ppn))) {
452 if (cmd == ELS_CMD_ADISC) {
453 lpfc_els_rsp_adisc_acc(phba, cmdiocb, ndlp);
454 }
455 else {
456 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp,
457 NULL, 0);
458 }
c9f8735b 459 return 1;
dea3101e
JB		 460 }
461 /* Reject this request because invalid parameters */
462 stat.un.b.lsRjtRsvd0 = 0;
463 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
464 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
465 stat.un.b.vendorUnique = 0;
466 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
467
468 ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
469 /* 1 sec timeout */
470 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
471
472 spin_lock_irq(phba->host->host_lock);
473 ndlp->nlp_flag |= NLP_DELAY_TMO;
474 spin_unlock_irq(phba->host->host_lock);
475 ndlp->nlp_state = NLP_STE_NPR_NODE;
476 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
c9f8735b 477 return 0;
dea3101e
JB		 478}
479
480static int
481lpfc_rcv_logo(struct lpfc_hba * phba,
482 struct lpfc_nodelist * ndlp,
483 struct lpfc_iocbq *cmdiocb)
484{
485 /* Put ndlp on NPR list with 1 sec timeout for plogi, ACC logo */
486 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
487 * PLOGIs during LOGO storms from a device.
488 */
489 ndlp->nlp_flag |= NLP_LOGO_ACC;
490 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
491
c9f8735b
JW		 492 if (!(ndlp->nlp_type & NLP_FABRIC) ||
493 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
dea3101e
JB		 494 /* Only try to re-login if this is NOT a Fabric Node */
495 ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
496 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
497 spin_lock_irq(phba->host->host_lock);
498 ndlp->nlp_flag |= NLP_DELAY_TMO;
499 spin_unlock_irq(phba->host->host_lock);
dea3101e 500
c9f8735b
JW		 501 ndlp->nlp_state = NLP_STE_NPR_NODE;
502 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
503 } else {
504 ndlp->nlp_state = NLP_STE_UNUSED_NODE;
505 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
506 }
dea3101e 507
c9f8735b 508 spin_lock_irq(phba->host->host_lock);
dea3101e 509 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
c9f8735b 510 spin_unlock_irq(phba->host->host_lock);
dea3101e
JB		 511 /* The driver has to wait until the ACC completes before it continues
512 * processing the LOGO. The action will resume in
513 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
514 * unreg_login, the driver waits so the ACC does not get aborted.
515 */
c9f8735b 516 return 0;
dea3101e
JB		 517}
518
519static void
520lpfc_rcv_prli(struct lpfc_hba * phba,
521 struct lpfc_nodelist * ndlp,
522 struct lpfc_iocbq *cmdiocb)
523{
524 struct lpfc_dmabuf *pcmd;
525 uint32_t *lp;
526 PRLI *npr;
527 struct fc_rport *rport = ndlp->rport;
528 u32 roles;
529
530 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
531 lp = (uint32_t *) pcmd->virt;
532 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
533
534 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
535 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
536 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
537 (npr->prliType == PRLI_FCP_TYPE)) {
538 if (npr->initiatorFunc)
539 ndlp->nlp_type |= NLP_FCP_INITIATOR;
540 if (npr->targetFunc)
541 ndlp->nlp_type |= NLP_FCP_TARGET;
542 if (npr->Retry)
543 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
544 }
545 if (rport) {
546 /* We need to update the rport role values */
547 roles = FC_RPORT_ROLE_UNKNOWN;
548 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
549 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
550 if (ndlp->nlp_type & NLP_FCP_TARGET)
551 roles |= FC_RPORT_ROLE_FCP_TARGET;
552 fc_remote_port_rolechg(rport, roles);
553 }
554}
555
556static uint32_t
557lpfc_disc_set_adisc(struct lpfc_hba * phba,
558 struct lpfc_nodelist * ndlp)
559{
560 /* Check config parameter use-adisc or FCP-2 */
561 if ((phba->cfg_use_adisc == 0) &&
562 !(phba->fc_flag & FC_RSCN_MODE)) {
563 if (!(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE))
c9f8735b 564 return 0;
dea3101e
JB		 565 }
566 spin_lock_irq(phba->host->host_lock);
567 ndlp->nlp_flag |= NLP_NPR_ADISC;
568 spin_unlock_irq(phba->host->host_lock);
c9f8735b 569 return 1;
dea3101e
JB		 570}
571
572static uint32_t
573lpfc_disc_illegal(struct lpfc_hba * phba,
574 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
575{
576 lpfc_printf_log(phba,
577 KERN_ERR,
578 LOG_DISCOVERY,
579 "%d:0253 Illegal State Transition: node x%x event x%x, "
580 "state x%x Data: x%x x%x\n",
581 phba->brd_no,
582 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
583 ndlp->nlp_flag);
c9f8735b 584 return ndlp->nlp_state;
dea3101e
JB		 585}
586
587/* Start of Discovery State Machine routines */
588
589static uint32_t
590lpfc_rcv_plogi_unused_node(struct lpfc_hba * phba,
591 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
592{
593 struct lpfc_iocbq *cmdiocb;
594
595 cmdiocb = (struct lpfc_iocbq *) arg;
596
597 if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
598 ndlp->nlp_state = NLP_STE_UNUSED_NODE;
599 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
c9f8735b 600 return ndlp->nlp_state;
dea3101e
JB		 601 }
602 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 603 return NLP_STE_FREED_NODE;
dea3101e
JB		 604}
605
606static uint32_t
607lpfc_rcv_els_unused_node(struct lpfc_hba * phba,
608 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
609{
610 lpfc_issue_els_logo(phba, ndlp, 0);
611 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
c9f8735b 612 return ndlp->nlp_state;
dea3101e
JB		 613}
614
615static uint32_t
616lpfc_rcv_logo_unused_node(struct lpfc_hba * phba,
617 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
618{
619 struct lpfc_iocbq *cmdiocb;
620
621 cmdiocb = (struct lpfc_iocbq *) arg;
622
623 spin_lock_irq(phba->host->host_lock);
624 ndlp->nlp_flag |= NLP_LOGO_ACC;
625 spin_unlock_irq(phba->host->host_lock);
626 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
627 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
628
c9f8735b 629 return ndlp->nlp_state;
dea3101e
JB		 630}
631
632static uint32_t
633lpfc_cmpl_logo_unused_node(struct lpfc_hba * phba,
634 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
635{
636 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 637 return NLP_STE_FREED_NODE;
dea3101e
JB		 638}
639
640static uint32_t
641lpfc_device_rm_unused_node(struct lpfc_hba * phba,
642 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
643{
644 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 645 return NLP_STE_FREED_NODE;
dea3101e
JB		 646}
647
648static uint32_t
649lpfc_rcv_plogi_plogi_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
650 void *arg, uint32_t evt)
651{
652 struct lpfc_iocbq *cmdiocb = arg;
653 struct lpfc_dmabuf *pcmd;
654 struct serv_parm *sp;
655 uint32_t *lp;
656 struct ls_rjt stat;
657 int port_cmp;
658
659 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
660 lp = (uint32_t *) pcmd->virt;
661 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
662
663 memset(&stat, 0, sizeof (struct ls_rjt));
664
665 /* For a PLOGI, we only accept if our portname is less
666 * than the remote portname.
667 */
668 phba->fc_stat.elsLogiCol++;
669 port_cmp = memcmp(&phba->fc_portname, &sp->portName,
670 sizeof (struct lpfc_name));
671
672 if (port_cmp >= 0) {
673 /* Reject this request because the remote node will accept
674 ours */
675 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
676 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
677 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
678 }
679 else {
680 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
681 } /* if our portname was less */
682
c9f8735b
JW		 683 return ndlp->nlp_state;
684}
685
686static uint32_t
687lpfc_rcv_logo_plogi_issue(struct lpfc_hba * phba,
688 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
689{
690 struct lpfc_iocbq *cmdiocb;
691
692 cmdiocb = (struct lpfc_iocbq *) arg;
693
694 /* software abort outstanding PLOGI */
695 lpfc_els_abort(phba, ndlp, 1);
696
697 lpfc_rcv_logo(phba, ndlp, cmdiocb);
698 return ndlp->nlp_state;
dea3101e
JB		 699}
700
701static uint32_t
702lpfc_rcv_els_plogi_issue(struct lpfc_hba * phba,
703 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
704{
705 struct lpfc_iocbq *cmdiocb;
706
707 cmdiocb = (struct lpfc_iocbq *) arg;
708
709 /* software abort outstanding PLOGI */
710 lpfc_els_abort(phba, ndlp, 1);
711 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
712 spin_lock_irq(phba->host->host_lock);
713 ndlp->nlp_flag |= NLP_DELAY_TMO;
714 spin_unlock_irq(phba->host->host_lock);
715
716 if (evt == NLP_EVT_RCV_LOGO) {
717 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
718 }
719 else {
720 lpfc_issue_els_logo(phba, ndlp, 0);
721 }
722
723 /* Put ndlp in npr list set plogi timer for 1 sec */
724 ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
725 ndlp->nlp_state = NLP_STE_NPR_NODE;
726 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
727
c9f8735b 728 return ndlp->nlp_state;
dea3101e
JB		 729}
730
731static uint32_t
732lpfc_cmpl_plogi_plogi_issue(struct lpfc_hba * phba,
733 struct lpfc_nodelist * ndlp, void *arg,
734 uint32_t evt)
735{
736 struct lpfc_iocbq *cmdiocb, *rspiocb;
737 struct lpfc_dmabuf *pcmd, *prsp;
738 uint32_t *lp;
739 IOCB_t *irsp;
740 struct serv_parm *sp;
741 LPFC_MBOXQ_t *mbox;
742
743 cmdiocb = (struct lpfc_iocbq *) arg;
744 rspiocb = cmdiocb->context_un.rsp_iocb;
745
746 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
c9f8735b 747 return ndlp->nlp_state;
dea3101e
JB		 748 }
749
750 irsp = &rspiocb->iocb;
751
752 if (irsp->ulpStatus)
753 goto out;
754
755 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
756
757 prsp = list_get_first(&pcmd->list,
758 struct lpfc_dmabuf,
759 list);
760 lp = (uint32_t *) prsp->virt;
761
762 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
763 if (!lpfc_check_sparm(phba, ndlp, sp, CLASS3))
764 goto out;
765
766 /* PLOGI chkparm OK */
767 lpfc_printf_log(phba,
768 KERN_INFO,
769 LOG_ELS,
770 "%d:0121 PLOGI chkparm OK "
771 "Data: x%x x%x x%x x%x\n",
772 phba->brd_no,
773 ndlp->nlp_DID, ndlp->nlp_state,
774 ndlp->nlp_flag, ndlp->nlp_rpi);
775
776 if ((phba->cfg_fcp_class == 2) &&
777 (sp->cls2.classValid)) {
778 ndlp->nlp_fcp_info |= CLASS2;
779 } else {
780 ndlp->nlp_fcp_info |= CLASS3;
781 }
782 ndlp->nlp_class_sup = 0;
783 if (sp->cls1.classValid)
784 ndlp->nlp_class_sup |= FC_COS_CLASS1;
785 if (sp->cls2.classValid)
786 ndlp->nlp_class_sup |= FC_COS_CLASS2;
787 if (sp->cls3.classValid)
788 ndlp->nlp_class_sup |= FC_COS_CLASS3;
789 if (sp->cls4.classValid)
790 ndlp->nlp_class_sup |= FC_COS_CLASS4;
791 ndlp->nlp_maxframe =
792 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
793 sp->cmn.bbRcvSizeLsb;
794
795 if (!(mbox = mempool_alloc(phba->mbox_mem_pool,
796 GFP_KERNEL)))
797 goto out;
798
799 lpfc_unreg_rpi(phba, ndlp);
800 if (lpfc_reg_login
801 (phba, irsp->un.elsreq64.remoteID,
802 (uint8_t *) sp, mbox, 0) == 0) {
803 /* set_slim mailbox command needs to
804 * execute first, queue this command to
805 * be processed later.
806 */
807 switch(ndlp->nlp_DID) {
808 case NameServer_DID:
809 mbox->mbox_cmpl =
810 lpfc_mbx_cmpl_ns_reg_login;
811 break;
812 case FDMI_DID:
813 mbox->mbox_cmpl =
814 lpfc_mbx_cmpl_fdmi_reg_login;
815 break;
816 default:
817 mbox->mbox_cmpl =
818 lpfc_mbx_cmpl_reg_login;
819 }
820 mbox->context2 = ndlp;
821 if (lpfc_sli_issue_mbox(phba, mbox,
822 (MBX_NOWAIT | MBX_STOP_IOCB))
823 != MBX_NOT_FINISHED) {
824 ndlp->nlp_state =
825 NLP_STE_REG_LOGIN_ISSUE;
826 lpfc_nlp_list(phba, ndlp,
827 NLP_REGLOGIN_LIST);
c9f8735b 828 return ndlp->nlp_state;
dea3101e
JB		 829 }
830 mempool_free(mbox, phba->mbox_mem_pool);
831 } else {
832 mempool_free(mbox, phba->mbox_mem_pool);
833 }
834
835
836 out:
837 /* Free this node since the driver cannot login or has the wrong
838 sparm */
839 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 840 return NLP_STE_FREED_NODE;
dea3101e
JB		 841}
842
843static uint32_t
844lpfc_device_rm_plogi_issue(struct lpfc_hba * phba,
845 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
846{
847 /* software abort outstanding PLOGI */
848 lpfc_els_abort(phba, ndlp, 1);
849
850 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 851 return NLP_STE_FREED_NODE;
dea3101e
JB		 852}
853
854static uint32_t
855lpfc_device_recov_plogi_issue(struct lpfc_hba * phba,
856 struct lpfc_nodelist * ndlp, void *arg,
857 uint32_t evt)
858{
859 /* software abort outstanding PLOGI */
860 lpfc_els_abort(phba, ndlp, 1);
861
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
JB		 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
JB		 885 }
886 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
887 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
888 lpfc_issue_els_plogi(phba, ndlp, 0);
889
c9f8735b 890 return ndlp->nlp_state;
dea3101e
JB		 891}
892
893static uint32_t
894lpfc_rcv_prli_adisc_issue(struct lpfc_hba * phba,
895 struct lpfc_nodelist * ndlp, void *arg,
896 uint32_t evt)
897{
898 struct lpfc_iocbq *cmdiocb;
899
900 cmdiocb = (struct lpfc_iocbq *) arg;
901
902 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 903 return ndlp->nlp_state;
dea3101e
JB		 904}
905
906static uint32_t
907lpfc_rcv_logo_adisc_issue(struct lpfc_hba * phba,
908 struct lpfc_nodelist * ndlp, void *arg,
909 uint32_t evt)
910{
911 struct lpfc_iocbq *cmdiocb;
912
913 cmdiocb = (struct lpfc_iocbq *) arg;
914
915 /* software abort outstanding ADISC */
916 lpfc_els_abort(phba, ndlp, 0);
917
918 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 919 return ndlp->nlp_state;
dea3101e
JB		 920}
921
922static uint32_t
923lpfc_rcv_padisc_adisc_issue(struct lpfc_hba * phba,
924 struct lpfc_nodelist * ndlp, void *arg,
925 uint32_t evt)
926{
927 struct lpfc_iocbq *cmdiocb;
928
929 cmdiocb = (struct lpfc_iocbq *) arg;
930
931 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 932 return ndlp->nlp_state;
dea3101e
JB		 933}
934
935static uint32_t
936lpfc_rcv_prlo_adisc_issue(struct lpfc_hba * phba,
937 struct lpfc_nodelist * ndlp, void *arg,
938 uint32_t evt)
939{
940 struct lpfc_iocbq *cmdiocb;
941
942 cmdiocb = (struct lpfc_iocbq *) arg;
943
944 /* Treat like rcv logo */
945 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 946 return ndlp->nlp_state;
dea3101e
JB		 947}
948
949static uint32_t
950lpfc_cmpl_adisc_adisc_issue(struct lpfc_hba * phba,
951 struct lpfc_nodelist * ndlp, void *arg,
952 uint32_t evt)
953{
954 struct lpfc_iocbq *cmdiocb, *rspiocb;
955 IOCB_t *irsp;
956 ADISC *ap;
957
958 cmdiocb = (struct lpfc_iocbq *) arg;
959 rspiocb = cmdiocb->context_un.rsp_iocb;
960
961 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
962 irsp = &rspiocb->iocb;
963
964 if ((irsp->ulpStatus) ||
965 (!lpfc_check_adisc(phba, ndlp, &ap->nodeName, &ap->portName))) {
966 ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
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);
972
973 memset(&ndlp->nlp_nodename, 0, sizeof (struct lpfc_name));
974 memset(&ndlp->nlp_portname, 0, sizeof (struct lpfc_name));
975
976 ndlp->nlp_state = NLP_STE_NPR_NODE;
977 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
978 lpfc_unreg_rpi(phba, ndlp);
c9f8735b 979 return ndlp->nlp_state;
dea3101e 980 }
2501322e
JSEC		 981 if (ndlp->nlp_type & NLP_FCP_TARGET) {
982 ndlp->nlp_state = NLP_STE_MAPPED_NODE;
983 lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
984 } else {
985 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
986 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
987 }
c9f8735b 988 return ndlp->nlp_state;
dea3101e
JB		 989}
990
991static uint32_t
992lpfc_device_rm_adisc_issue(struct lpfc_hba * phba,
993 struct lpfc_nodelist * ndlp, void *arg,
994 uint32_t evt)
995{
996 /* software abort outstanding ADISC */
997 lpfc_els_abort(phba, ndlp, 1);
998
999 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 1000 return NLP_STE_FREED_NODE;
dea3101e
JB		 1001}
1002
1003static uint32_t
1004lpfc_device_recov_adisc_issue(struct lpfc_hba * phba,
1005 struct lpfc_nodelist * ndlp, void *arg,
1006 uint32_t evt)
1007{
1008 /* software abort outstanding ADISC */
1009 lpfc_els_abort(phba, ndlp, 1);
1010
1011 ndlp->nlp_state = NLP_STE_NPR_NODE;
1012 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1013 spin_lock_irq(phba->host->host_lock);
1014 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
c9f8735b 1015 ndlp->nlp_flag |= NLP_NPR_ADISC;
dea3101e
JB		 1016 spin_unlock_irq(phba->host->host_lock);
1017
c9f8735b 1018 return ndlp->nlp_state;
dea3101e
JB		 1019}
1020
1021static uint32_t
1022lpfc_rcv_plogi_reglogin_issue(struct lpfc_hba * phba,
1023 struct lpfc_nodelist * ndlp, void *arg,
1024 uint32_t evt)
1025{
1026 struct lpfc_iocbq *cmdiocb;
1027
1028 cmdiocb = (struct lpfc_iocbq *) arg;
1029
1030 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
c9f8735b 1031 return ndlp->nlp_state;
dea3101e
JB		 1032}
1033
1034static uint32_t
1035lpfc_rcv_prli_reglogin_issue(struct lpfc_hba * phba,
1036 struct lpfc_nodelist * ndlp, void *arg,
1037 uint32_t evt)
1038{
1039 struct lpfc_iocbq *cmdiocb;
1040
1041 cmdiocb = (struct lpfc_iocbq *) arg;
1042
1043 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 1044 return ndlp->nlp_state;
dea3101e
JB		 1045}
1046
1047static uint32_t
1048lpfc_rcv_logo_reglogin_issue(struct lpfc_hba * phba,
1049 struct lpfc_nodelist * ndlp, void *arg,
1050 uint32_t evt)
1051{
1052 struct lpfc_iocbq *cmdiocb;
1053
1054 cmdiocb = (struct lpfc_iocbq *) arg;
1055
1056 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1057 return ndlp->nlp_state;
dea3101e
JB		 1058}
1059
1060static uint32_t
1061lpfc_rcv_padisc_reglogin_issue(struct lpfc_hba * phba,
1062 struct lpfc_nodelist * ndlp, void *arg,
1063 uint32_t evt)
1064{
1065 struct lpfc_iocbq *cmdiocb;
1066
1067 cmdiocb = (struct lpfc_iocbq *) arg;
1068
1069 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 1070 return ndlp->nlp_state;
dea3101e
JB		 1071}
1072
1073static uint32_t
1074lpfc_rcv_prlo_reglogin_issue(struct lpfc_hba * phba,
1075 struct lpfc_nodelist * ndlp, void *arg,
1076 uint32_t evt)
1077{
1078 struct lpfc_iocbq *cmdiocb;
1079
1080 cmdiocb = (struct lpfc_iocbq *) arg;
1081 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
c9f8735b 1082 return ndlp->nlp_state;
dea3101e
JB		 1083}
1084
1085static uint32_t
1086lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_hba * phba,
1087 struct lpfc_nodelist * ndlp,
1088 void *arg, uint32_t evt)
1089{
1090 LPFC_MBOXQ_t *pmb;
1091 MAILBOX_t *mb;
1092 uint32_t did;
1093
1094 pmb = (LPFC_MBOXQ_t *) arg;
1095 mb = &pmb->mb;
1096 did = mb->un.varWords[1];
1097 if (mb->mbxStatus) {
1098 /* RegLogin failed */
1099 lpfc_printf_log(phba,
1100 KERN_ERR,
1101 LOG_DISCOVERY,
1102 "%d:0246 RegLogin failed Data: x%x x%x x%x\n",
1103 phba->brd_no,
1104 did, mb->mbxStatus, phba->hba_state);
1105
1106 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1107 spin_lock_irq(phba->host->host_lock);
1108 ndlp->nlp_flag |= NLP_DELAY_TMO;
1109 spin_unlock_irq(phba->host->host_lock);
1110
1111 lpfc_issue_els_logo(phba, ndlp, 0);
1112 /* Put ndlp in npr list set plogi timer for 1 sec */
1113 ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI;
1114 ndlp->nlp_state = NLP_STE_NPR_NODE;
1115 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
c9f8735b 1116 return ndlp->nlp_state;
dea3101e
JB		 1117 }
1118
dea3101e 1119 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e
JB		 1120
1121 /* Only if we are not a fabric nport do we issue PRLI */
1122 if (!(ndlp->nlp_type & NLP_FABRIC)) {
1123 ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
1124 lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
1125 lpfc_issue_els_prli(phba, ndlp, 0);
1126 } else {
1127 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1128 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1129 }
c9f8735b 1130 return ndlp->nlp_state;
dea3101e
JB		 1131}
1132
1133static uint32_t
1134lpfc_device_rm_reglogin_issue(struct lpfc_hba * phba,
1135 struct lpfc_nodelist * ndlp, void *arg,
1136 uint32_t evt)
1137{
1138 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 1139 return NLP_STE_FREED_NODE;
dea3101e
JB		 1140}
1141
1142static uint32_t
1143lpfc_device_recov_reglogin_issue(struct lpfc_hba * phba,
1144 struct lpfc_nodelist * ndlp, void *arg,
1145 uint32_t evt)
1146{
1147 ndlp->nlp_state = NLP_STE_NPR_NODE;
1148 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1149 spin_lock_irq(phba->host->host_lock);
1150 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1151 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1152 return ndlp->nlp_state;
dea3101e
JB		 1153}
1154
1155static uint32_t
1156lpfc_rcv_plogi_prli_issue(struct lpfc_hba * phba,
1157 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1158{
1159 struct lpfc_iocbq *cmdiocb;
1160
1161 cmdiocb = (struct lpfc_iocbq *) arg;
1162
1163 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
c9f8735b 1164 return ndlp->nlp_state;
dea3101e
JB		 1165}
1166
1167static uint32_t
1168lpfc_rcv_prli_prli_issue(struct lpfc_hba * phba,
1169 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1170{
1171 struct lpfc_iocbq *cmdiocb;
1172
1173 cmdiocb = (struct lpfc_iocbq *) arg;
1174
1175 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 1176 return ndlp->nlp_state;
dea3101e
JB		 1177}
1178
1179static uint32_t
1180lpfc_rcv_logo_prli_issue(struct lpfc_hba * phba,
1181 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1182{
1183 struct lpfc_iocbq *cmdiocb;
1184
1185 cmdiocb = (struct lpfc_iocbq *) arg;
1186
1187 /* Software abort outstanding PRLI before sending acc */
1188 lpfc_els_abort(phba, ndlp, 1);
1189
1190 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1191 return ndlp->nlp_state;
dea3101e
JB		 1192}
1193
1194static uint32_t
1195lpfc_rcv_padisc_prli_issue(struct lpfc_hba * phba,
1196 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1197{
1198 struct lpfc_iocbq *cmdiocb;
1199
1200 cmdiocb = (struct lpfc_iocbq *) arg;
1201
1202 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 1203 return ndlp->nlp_state;
dea3101e
JB		 1204}
1205
1206/* This routine is envoked when we rcv a PRLO request from a nport
1207 * we are logged into. We should send back a PRLO rsp setting the
1208 * appropriate bits.
1209 * NEXT STATE = PRLI_ISSUE
1210 */
1211static uint32_t
1212lpfc_rcv_prlo_prli_issue(struct lpfc_hba * phba,
1213 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1214{
1215 struct lpfc_iocbq *cmdiocb;
1216
1217 cmdiocb = (struct lpfc_iocbq *) arg;
1218 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
c9f8735b 1219 return ndlp->nlp_state;
dea3101e
JB		 1220}
1221
1222static uint32_t
1223lpfc_cmpl_prli_prli_issue(struct lpfc_hba * phba,
1224 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1225{
1226 struct lpfc_iocbq *cmdiocb, *rspiocb;
1227 IOCB_t *irsp;
1228 PRLI *npr;
1229
1230 cmdiocb = (struct lpfc_iocbq *) arg;
1231 rspiocb = cmdiocb->context_un.rsp_iocb;
1232 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1233
1234 irsp = &rspiocb->iocb;
1235 if (irsp->ulpStatus) {
1236 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1237 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
c9f8735b 1238 return ndlp->nlp_state;
dea3101e
JB		 1239 }
1240
1241 /* Check out PRLI rsp */
1242 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1243 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1244 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1245 (npr->prliType == PRLI_FCP_TYPE)) {
1246 if (npr->initiatorFunc)
1247 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1248 if (npr->targetFunc)
1249 ndlp->nlp_type |= NLP_FCP_TARGET;
1250 if (npr->Retry)
1251 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1252 }
1253
1254 ndlp->nlp_state = NLP_STE_MAPPED_NODE;
1255 lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
c9f8735b 1256 return ndlp->nlp_state;
dea3101e
JB		 1257}
1258
1259/*! lpfc_device_rm_prli_issue
1260 *
1261 * \pre
1262 * \post
1263 * \param phba
1264 * \param ndlp
1265 * \param arg
1266 * \param evt
1267 * \return uint32_t
1268 *
1269 * \b Description:
1270 * This routine is envoked when we a request to remove a nport we are in the
1271 * process of PRLIing. We should software abort outstanding prli, unreg
1272 * login, send a logout. We will change node state to UNUSED_NODE, put it
1273 * on plogi list so it can be freed when LOGO completes.
1274 *
1275 */
1276static uint32_t
1277lpfc_device_rm_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 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 1284 return NLP_STE_FREED_NODE;
dea3101e
JB		 1285}
1286
1287
1288/*! lpfc_device_recov_prli_issue
1289 *
1290 * \pre
1291 * \post
1292 * \param phba
1293 * \param ndlp
1294 * \param arg
1295 * \param evt
1296 * \return uint32_t
1297 *
1298 * \b Description:
1299 * The routine is envoked when the state of a device is unknown, like
1300 * during a link down. We should remove the nodelist entry from the
1301 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1302 * outstanding PRLI command, then free the node entry.
1303 */
1304static uint32_t
1305lpfc_device_recov_prli_issue(struct lpfc_hba * phba,
1306 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1307{
1308 /* software abort outstanding PRLI */
1309 lpfc_els_abort(phba, ndlp, 1);
1310
1311 ndlp->nlp_state = NLP_STE_NPR_NODE;
1312 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1313 spin_lock_irq(phba->host->host_lock);
1314 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1315 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1316 return ndlp->nlp_state;
dea3101e
JB		 1317}
1318
1319static uint32_t
1320lpfc_rcv_plogi_unmap_node(struct lpfc_hba * phba,
1321 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1322{
1323 struct lpfc_iocbq *cmdiocb;
1324
1325 cmdiocb = (struct lpfc_iocbq *) arg;
1326
1327 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
c9f8735b 1328 return ndlp->nlp_state;
dea3101e
JB		 1329}
1330
1331static uint32_t
1332lpfc_rcv_prli_unmap_node(struct lpfc_hba * phba,
1333 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1334{
1335 struct lpfc_iocbq *cmdiocb;
1336
1337 cmdiocb = (struct lpfc_iocbq *) arg;
1338
1339 lpfc_rcv_prli(phba, ndlp, cmdiocb);
1340 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 1341 return ndlp->nlp_state;
dea3101e
JB		 1342}
1343
1344static uint32_t
1345lpfc_rcv_logo_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_logo(phba, ndlp, cmdiocb);
c9f8735b 1353 return ndlp->nlp_state;
dea3101e
JB		 1354}
1355
1356static uint32_t
1357lpfc_rcv_padisc_unmap_node(struct lpfc_hba * phba,
1358 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1359{
1360 struct lpfc_iocbq *cmdiocb;
1361
1362 cmdiocb = (struct lpfc_iocbq *) arg;
1363
1364 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 1365 return ndlp->nlp_state;
dea3101e
JB		 1366}
1367
1368static uint32_t
1369lpfc_rcv_prlo_unmap_node(struct lpfc_hba * phba,
1370 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1371{
1372 struct lpfc_iocbq *cmdiocb;
1373
1374 cmdiocb = (struct lpfc_iocbq *) arg;
1375
c9f8735b
JW		 1376 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
1377 return ndlp->nlp_state;
dea3101e
JB		 1378}
1379
1380static uint32_t
1381lpfc_device_recov_unmap_node(struct lpfc_hba * phba,
1382 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1383{
1384 ndlp->nlp_state = NLP_STE_NPR_NODE;
1385 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1386 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1387 lpfc_disc_set_adisc(phba, ndlp);
1388
c9f8735b 1389 return ndlp->nlp_state;
dea3101e
JB		 1390}
1391
1392static uint32_t
1393lpfc_rcv_plogi_mapped_node(struct lpfc_hba * phba,
1394 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1395{
1396 struct lpfc_iocbq *cmdiocb;
1397
1398 cmdiocb = (struct lpfc_iocbq *) arg;
1399
1400 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
c9f8735b 1401 return ndlp->nlp_state;
dea3101e
JB		 1402}
1403
1404static uint32_t
1405lpfc_rcv_prli_mapped_node(struct lpfc_hba * phba,
1406 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1407{
1408 struct lpfc_iocbq *cmdiocb;
1409
1410 cmdiocb = (struct lpfc_iocbq *) arg;
1411
1412 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 1413 return ndlp->nlp_state;
dea3101e
JB		 1414}
1415
1416static uint32_t
1417lpfc_rcv_logo_mapped_node(struct lpfc_hba * phba,
1418 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1419{
1420 struct lpfc_iocbq *cmdiocb;
1421
1422 cmdiocb = (struct lpfc_iocbq *) arg;
1423
1424 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1425 return ndlp->nlp_state;
dea3101e
JB		 1426}
1427
1428static uint32_t
1429lpfc_rcv_padisc_mapped_node(struct lpfc_hba * phba,
1430 struct lpfc_nodelist * ndlp, void *arg,
1431 uint32_t evt)
1432{
1433 struct lpfc_iocbq *cmdiocb;
1434
1435 cmdiocb = (struct lpfc_iocbq *) arg;
1436
1437 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 1438 return ndlp->nlp_state;
dea3101e
JB		 1439}
1440
1441static uint32_t
1442lpfc_rcv_prlo_mapped_node(struct lpfc_hba * phba,
1443 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1444{
1445 struct lpfc_iocbq *cmdiocb;
1446
1447 cmdiocb = (struct lpfc_iocbq *) arg;
1448
1449 /* flush the target */
1450 spin_lock_irq(phba->host->host_lock);
1451 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
1452 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
1453 spin_unlock_irq(phba->host->host_lock);
1454
1455 /* Treat like rcv logo */
1456 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1457 return ndlp->nlp_state;
dea3101e
JB		 1458}
1459
1460static uint32_t
1461lpfc_device_recov_mapped_node(struct lpfc_hba * phba,
1462 struct lpfc_nodelist * ndlp, void *arg,
1463 uint32_t evt)
1464{
1465 ndlp->nlp_state = NLP_STE_NPR_NODE;
1466 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1467 spin_lock_irq(phba->host->host_lock);
1468 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1469 spin_unlock_irq(phba->host->host_lock);
1470 lpfc_disc_set_adisc(phba, ndlp);
c9f8735b 1471 return ndlp->nlp_state;
dea3101e
JB		 1472}
1473
1474static uint32_t
1475lpfc_rcv_plogi_npr_node(struct lpfc_hba * phba,
1476 struct lpfc_nodelist * ndlp, void *arg,
1477 uint32_t evt)
1478{
1479 struct lpfc_iocbq *cmdiocb;
1480
1481 cmdiocb = (struct lpfc_iocbq *) arg;
1482
1483 /* Ignore PLOGI if we have an outstanding LOGO */
1484 if (ndlp->nlp_flag & NLP_LOGO_SND) {
c9f8735b 1485 return ndlp->nlp_state;
dea3101e
JB		 1486 }
1487
1488 if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
1489 spin_lock_irq(phba->host->host_lock);
1490 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
1491 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1492 return ndlp->nlp_state;
dea3101e
JB		 1493 }
1494
1495 /* send PLOGI immediately, move to PLOGI issue state */
1496 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1497 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1498 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1499 lpfc_issue_els_plogi(phba, ndlp, 0);
1500 }
c9f8735b 1501 return ndlp->nlp_state;
dea3101e
JB		 1502}
1503
1504static uint32_t
1505lpfc_rcv_prli_npr_node(struct lpfc_hba * phba,
1506 struct lpfc_nodelist * ndlp, void *arg,
1507 uint32_t evt)
1508{
1509 struct lpfc_iocbq *cmdiocb;
1510 struct ls_rjt stat;
1511
1512 cmdiocb = (struct lpfc_iocbq *) arg;
1513
1514 memset(&stat, 0, sizeof (struct ls_rjt));
1515 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1516 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1517 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
1518
1519 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1520 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
c9f8735b
JW		 1521 spin_lock_irq(phba->host->host_lock);
1522 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1523 spin_unlock_irq(phba->host->host_lock);
dea3101e
JB		 1524 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1525 lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1526 lpfc_issue_els_adisc(phba, ndlp, 0);
1527 } else {
1528 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1529 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1530 lpfc_issue_els_plogi(phba, ndlp, 0);
1531 }
1532 }
c9f8735b 1533 return ndlp->nlp_state;
dea3101e
JB		 1534}
1535
1536static uint32_t
1537lpfc_rcv_logo_npr_node(struct lpfc_hba * phba,
1538 struct lpfc_nodelist * ndlp, void *arg,
1539 uint32_t evt)
1540{
1541 struct lpfc_iocbq *cmdiocb;
1542
1543 cmdiocb = (struct lpfc_iocbq *) arg;
1544
1545 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1546 return ndlp->nlp_state;
dea3101e
JB		 1547}
1548
1549static uint32_t
1550lpfc_rcv_padisc_npr_node(struct lpfc_hba * phba,
1551 struct lpfc_nodelist * ndlp, void *arg,
1552 uint32_t evt)
1553{
1554 struct lpfc_iocbq *cmdiocb;
1555
1556 cmdiocb = (struct lpfc_iocbq *) arg;
1557
1558 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
1559
1560 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1561 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
1562 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1563 lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1564 lpfc_issue_els_adisc(phba, ndlp, 0);
1565 } else {
1566 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1567 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1568 lpfc_issue_els_plogi(phba, ndlp, 0);
1569 }
1570 }
c9f8735b 1571 return ndlp->nlp_state;
dea3101e
JB		 1572}
1573
1574static uint32_t
1575lpfc_rcv_prlo_npr_node(struct lpfc_hba * phba,
1576 struct lpfc_nodelist * ndlp, void *arg,
1577 uint32_t evt)
1578{
1579 struct lpfc_iocbq *cmdiocb;
1580
1581 cmdiocb = (struct lpfc_iocbq *) arg;
1582
c9f8735b
JW		 1583 spin_lock_irq(phba->host->host_lock);
1584 ndlp->nlp_flag |= NLP_LOGO_ACC;
1585 spin_unlock_irq(phba->host->host_lock);
1586
dea3101e
JB		 1587 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
1588
c9f8735b
JW		 1589 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1590 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1591 spin_lock_irq(phba->host->host_lock);
1592 ndlp->nlp_flag |= NLP_DELAY_TMO;
1593 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1594 spin_unlock_irq(phba->host->host_lock);
1595 } else {
1596 spin_lock_irq(phba->host->host_lock);
1597 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1598 spin_unlock_irq(phba->host->host_lock);
dea3101e 1599 }
c9f8735b
JW		 1600 return ndlp->nlp_state;
1601}
dea3101e 1602
c9f8735b
JW		 1603static uint32_t
1604lpfc_cmpl_plogi_npr_node(struct lpfc_hba * phba,
1605 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1606{
1607 struct lpfc_iocbq *cmdiocb, *rspiocb;
1608
1609 cmdiocb = (struct lpfc_iocbq *) arg;
1610 rspiocb = cmdiocb->context_un.rsp_iocb;
1611 return ndlp->nlp_state;
1612}
1613
1614static uint32_t
1615lpfc_cmpl_prli_npr_node(struct lpfc_hba * phba,
1616 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1617{
1618 struct lpfc_iocbq *cmdiocb, *rspiocb;
1619
1620 cmdiocb = (struct lpfc_iocbq *) arg;
1621 rspiocb = cmdiocb->context_un.rsp_iocb;
1622 return ndlp->nlp_state;
dea3101e
JB		 1623}
1624
1625static uint32_t
1626lpfc_cmpl_logo_npr_node(struct lpfc_hba * phba,
1627 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1628{
1629 lpfc_unreg_rpi(phba, ndlp);
1630 /* This routine does nothing, just return the current state */
c9f8735b
JW		 1631 return ndlp->nlp_state;
1632}
1633
1634static uint32_t
1635lpfc_cmpl_adisc_npr_node(struct lpfc_hba * phba,
1636 struct lpfc_nodelist * ndlp, void *arg,
1637 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
JB		 1644}
1645
1646static uint32_t
1647lpfc_cmpl_reglogin_npr_node(struct lpfc_hba * phba,
1648 struct lpfc_nodelist * ndlp, void *arg,
1649 uint32_t evt)
1650{
1651 LPFC_MBOXQ_t *pmb;
1652 MAILBOX_t *mb;
1653
1654 pmb = (LPFC_MBOXQ_t *) arg;
1655 mb = &pmb->mb;
1656
c9f8735b
JW		 1657 if (!mb->mbxStatus)
1658 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1659
c9f8735b 1660 return ndlp->nlp_state;
dea3101e
JB		 1661}
1662
1663static uint32_t
1664lpfc_device_rm_npr_node(struct lpfc_hba * phba,
1665 struct lpfc_nodelist * ndlp, void *arg,
1666 uint32_t evt)
1667{
1668 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 1669 return NLP_STE_FREED_NODE;
dea3101e
JB		 1670}
1671
1672static uint32_t
1673lpfc_device_recov_npr_node(struct lpfc_hba * phba,
1674 struct lpfc_nodelist * ndlp, void *arg,
1675 uint32_t evt)
1676{
1677 spin_lock_irq(phba->host->host_lock);
1678 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
6ad42535
JW		 1679 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
1680 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
1681 if (!list_empty(&ndlp->els_retry_evt.evt_listp))
1682 list_del_init(&ndlp->els_retry_evt.evt_listp);
1683 spin_unlock_irq(phba->host->host_lock);
1684 del_timer_sync(&ndlp->nlp_delayfunc);
c9f8735b 1685 return ndlp->nlp_state;
6ad42535 1686 }
dea3101e 1687 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1688 return ndlp->nlp_state;
dea3101e
JB		 1689}
1690
1691
1692/* This next section defines the NPort Discovery State Machine */
1693
1694/* There are 4 different double linked lists nodelist entries can reside on.
1695 * The plogi list and adisc list are used when Link Up discovery or RSCN
1696 * processing is needed. Each list holds the nodes that we will send PLOGI
1697 * or ADISC on. These lists will keep track of what nodes will be effected
1698 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1699 * The unmapped_list will contain all nodes that we have successfully logged
1700 * into at the Fibre Channel level. The mapped_list will contain all nodes
1701 * that are mapped FCP targets.
1702 */
1703/*
1704 * The bind list is a list of undiscovered (potentially non-existent) nodes
1705 * that we have saved binding information on. This information is used when
1706 * nodes transition from the unmapped to the mapped list.
1707 */
1708/* For UNUSED_NODE state, the node has just been allocated .
1709 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1710 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1711 * and put on the unmapped list. For ADISC processing, the node is taken off
1712 * the ADISC list and placed on either the mapped or unmapped list (depending
1713 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1714 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1715 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1716 * node, the node is taken off the unmapped list. The binding list is checked
1717 * for a valid binding, or a binding is automatically assigned. If binding
1718 * assignment is unsuccessful, the node is left on the unmapped list. If
1719 * binding assignment is successful, the associated binding list entry (if
1720 * any) is removed, and the node is placed on the mapped list.
1721 */
1722/*
1723 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
1724 * lists will receive a DEVICE_RECOVERY event. If the linkdown or nodev timers
1725 * expire, all effected nodes will receive a DEVICE_RM event.
1726 */
1727/*
1728 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
1729 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
1730 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
1731 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
1732 * we will first process the ADISC list. 32 entries are processed initially and
1733 * ADISC is initited for each one. Completions / Events for each node are
1734 * funnelled thru the state machine. As each node finishes ADISC processing, it
1735 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
1736 * waiting, and the ADISC list count is identically 0, then we are done. For
1737 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
1738 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
1739 * list. 32 entries are processed initially and PLOGI is initited for each one.
1740 * Completions / Events for each node are funnelled thru the state machine. As
1741 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
1742 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
1743 * indentically 0, then we are done. We have now completed discovery / RSCN
1744 * handling. Upon completion, ALL nodes should be on either the mapped or
1745 * unmapped lists.
1746 */
1747
1748static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
1749 (struct lpfc_hba *, struct lpfc_nodelist *, void *, uint32_t) = {
1750 /* Action routine Event Current State */
1751 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
1752 lpfc_rcv_els_unused_node, /* RCV_PRLI */
1753 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
1754 lpfc_rcv_els_unused_node, /* RCV_ADISC */
1755 lpfc_rcv_els_unused_node, /* RCV_PDISC */
1756 lpfc_rcv_els_unused_node, /* RCV_PRLO */
1757 lpfc_disc_illegal, /* CMPL_PLOGI */
1758 lpfc_disc_illegal, /* CMPL_PRLI */
1759 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
1760 lpfc_disc_illegal, /* CMPL_ADISC */
1761 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1762 lpfc_device_rm_unused_node, /* DEVICE_RM */
1763 lpfc_disc_illegal, /* DEVICE_RECOVERY */
1764
1765 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
1766 lpfc_rcv_els_plogi_issue, /* RCV_PRLI */
c9f8735b 1767 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
dea3101e
JB		 1768 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
1769 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
1770 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
1771 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
1772 lpfc_disc_illegal, /* CMPL_PRLI */
1773 lpfc_disc_illegal, /* CMPL_LOGO */
1774 lpfc_disc_illegal, /* CMPL_ADISC */
1775 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1776 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
1777 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
1778
1779 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
1780 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
1781 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
1782 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
1783 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
1784 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
1785 lpfc_disc_illegal, /* CMPL_PLOGI */
1786 lpfc_disc_illegal, /* CMPL_PRLI */
1787 lpfc_disc_illegal, /* CMPL_LOGO */
1788 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
1789 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1790 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
1791 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
1792
1793 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
1794 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
1795 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
1796 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
1797 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
1798 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
1799 lpfc_disc_illegal, /* CMPL_PLOGI */
1800 lpfc_disc_illegal, /* CMPL_PRLI */
1801 lpfc_disc_illegal, /* CMPL_LOGO */
1802 lpfc_disc_illegal, /* CMPL_ADISC */
1803 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
1804 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
1805 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
1806
1807 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
1808 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
1809 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
1810 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
1811 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
1812 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
1813 lpfc_disc_illegal, /* CMPL_PLOGI */
1814 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
1815 lpfc_disc_illegal, /* CMPL_LOGO */
1816 lpfc_disc_illegal, /* CMPL_ADISC */
1817 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1818 lpfc_device_rm_prli_issue, /* DEVICE_RM */
1819 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
1820
1821 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
1822 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
1823 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
1824 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
1825 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
1826 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
1827 lpfc_disc_illegal, /* CMPL_PLOGI */
1828 lpfc_disc_illegal, /* CMPL_PRLI */
1829 lpfc_disc_illegal, /* CMPL_LOGO */
1830 lpfc_disc_illegal, /* CMPL_ADISC */
1831 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1832 lpfc_disc_illegal, /* DEVICE_RM */
1833 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
1834
1835 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
1836 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
1837 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
1838 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
1839 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
1840 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
1841 lpfc_disc_illegal, /* CMPL_PLOGI */
1842 lpfc_disc_illegal, /* CMPL_PRLI */
1843 lpfc_disc_illegal, /* CMPL_LOGO */
1844 lpfc_disc_illegal, /* CMPL_ADISC */
1845 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1846 lpfc_disc_illegal, /* DEVICE_RM */
1847 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
1848
1849 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
1850 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
1851 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
1852 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
1853 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
1854 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
c9f8735b
JW		 1855 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
1856 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
dea3101e 1857 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
c9f8735b 1858 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
dea3101e
JB		 1859 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
1860 lpfc_device_rm_npr_node, /* DEVICE_RM */
1861 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
1862};
1863
1864int
1865lpfc_disc_state_machine(struct lpfc_hba * phba,
1866 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1867{
1868 uint32_t cur_state, rc;
1869 uint32_t(*func) (struct lpfc_hba *, struct lpfc_nodelist *, void *,
1870 uint32_t);
1871
1872 ndlp->nlp_disc_refcnt++;
1873 cur_state = ndlp->nlp_state;
1874
1875 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
1876 lpfc_printf_log(phba,
1877 KERN_INFO,
1878 LOG_DISCOVERY,
1879 "%d:0211 DSM in event x%x on NPort x%x in state %d "
1880 "Data: x%x\n",
1881 phba->brd_no,
1882 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
1883
1884 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
1885 rc = (func) (phba, ndlp, arg, evt);
1886
1887 /* DSM out state <rc> on NPort <nlp_DID> */
1888 lpfc_printf_log(phba,
1889 KERN_INFO,
1890 LOG_DISCOVERY,
1891 "%d:0212 DSM out state %d on NPort x%x Data: x%x\n",
1892 phba->brd_no,
1893 rc, ndlp->nlp_DID, ndlp->nlp_flag);
1894
1895 ndlp->nlp_disc_refcnt--;
1896
1897 /* Check to see if ndlp removal is deferred */
1898 if ((ndlp->nlp_disc_refcnt == 0)
1899 && (ndlp->nlp_flag & NLP_DELAY_REMOVE)) {
1900 spin_lock_irq(phba->host->host_lock);
1901 ndlp->nlp_flag &= ~NLP_DELAY_REMOVE;
1902 spin_unlock_irq(phba->host->host_lock);
1903 lpfc_nlp_remove(phba, ndlp);
c9f8735b 1904 return NLP_STE_FREED_NODE;
dea3101e
JB		 1905 }
1906 if (rc == NLP_STE_FREED_NODE)
c9f8735b 1907 return NLP_STE_FREED_NODE;
dea3101e 1908 ndlp->nlp_state = rc;
c9f8735b 1909 return rc;
dea3101e 1910}
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