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[SCSI] megaraid/megaraid_mm.c: fix a NULL pointer dereference
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
CommitLineData
dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
2fe165b6 4 * Copyright (C) 2004-2006 Emulex. All rights reserved. *
c44ce173 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 }
2fe165b6 153 } else {
dea3101e 154 /* Force ulpStatus error since we are returning NULL ptr */
155 if (!(irsp->ulpStatus)) {
156 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
157 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
158 }
159 ptr = NULL;
160 }
c9f8735b 161 return ptr;
dea3101e 162}
163
164
165/*
166 * Free resources / clean up outstanding I/Os
167 * associated with a LPFC_NODELIST entry. This
168 * routine effectively results in a "software abort".
169 */
170int
171lpfc_els_abort(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
172 int send_abts)
173{
174 struct lpfc_sli *psli;
175 struct lpfc_sli_ring *pring;
176 struct lpfc_iocbq *iocb, *next_iocb;
177 IOCB_t *icmd;
178 int found = 0;
179
180 /* Abort outstanding I/O on NPort <nlp_DID> */
181 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
182 "%d:0201 Abort outstanding I/O on NPort x%x "
183 "Data: x%x x%x x%x\n",
184 phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
185 ndlp->nlp_state, ndlp->nlp_rpi);
186
187 psli = &phba->sli;
188 pring = &psli->ring[LPFC_ELS_RING];
189
190 /* First check the txq */
191 do {
192 found = 0;
193 spin_lock_irq(phba->host->host_lock);
194 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
195 /* Check to see if iocb matches the nport we are looking
196 for */
197 if ((lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))) {
198 found = 1;
199 /* It matches, so deque and call compl with an
200 error */
201 list_del(&iocb->list);
202 pring->txq_cnt--;
203 if (iocb->iocb_cmpl) {
204 icmd = &iocb->iocb;
205 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
206 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
207 spin_unlock_irq(phba->host->host_lock);
208 (iocb->iocb_cmpl) (phba, iocb, iocb);
209 spin_lock_irq(phba->host->host_lock);
604a3e30
JB		 210 } else
211 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 212 break;
213 }
214 }
215 spin_unlock_irq(phba->host->host_lock);
216 } while (found);
217
218 /* Everything on txcmplq will be returned by firmware
219 * with a no rpi / linkdown / abort error. For ring 0,
220 * ELS discovery, we want to get rid of it right here.
221 */
222 /* Next check the txcmplq */
223 do {
224 found = 0;
225 spin_lock_irq(phba->host->host_lock);
226 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
227 list) {
228 /* Check to see if iocb matches the nport we are looking
229 for */
230 if ((lpfc_check_sli_ndlp (phba, pring, iocb, ndlp))) {
231 found = 1;
232 /* It matches, so deque and call compl with an
233 error */
234 list_del(&iocb->list);
235 pring->txcmplq_cnt--;
236
237 icmd = &iocb->iocb;
238 /* If the driver is completing an ELS
239 * command early, flush it out of the firmware.
240 */
241 if (send_abts &&
242 (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) &&
243 (icmd->un.elsreq64.bdl.ulpIoTag32)) {
244 lpfc_sli_issue_abort_iotag32(phba,
245 pring, iocb);
246 }
247 if (iocb->iocb_cmpl) {
248 icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
249 icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
250 spin_unlock_irq(phba->host->host_lock);
251 (iocb->iocb_cmpl) (phba, iocb, iocb);
252 spin_lock_irq(phba->host->host_lock);
604a3e30
JB		 253 } else
254 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 255 break;
256 }
257 }
258 spin_unlock_irq(phba->host->host_lock);
259 } while(found);
260
261 /* If we are delaying issuing an ELS command, cancel it */
fdcebe28
JS		 262 if (ndlp->nlp_flag & NLP_DELAY_TMO)
263 lpfc_cancel_retry_delay_tmo(phba, ndlp);
c9f8735b 264 return 0;
dea3101e 265}
266
267static int
268lpfc_rcv_plogi(struct lpfc_hba * phba,
269 struct lpfc_nodelist * ndlp,
270 struct lpfc_iocbq *cmdiocb)
271{
272 struct lpfc_dmabuf *pcmd;
273 uint32_t *lp;
274 IOCB_t *icmd;
275 struct serv_parm *sp;
276 LPFC_MBOXQ_t *mbox;
277 struct ls_rjt stat;
278 int rc;
279
280 memset(&stat, 0, sizeof (struct ls_rjt));
281 if (phba->hba_state <= LPFC_FLOGI) {
282 /* Before responding to PLOGI, check for pt2pt mode.
283 * If we are pt2pt, with an outstanding FLOGI, abort
284 * the FLOGI and resend it first.
285 */
286 if (phba->fc_flag & FC_PT2PT) {
287 lpfc_els_abort_flogi(phba);
288 if (!(phba->fc_flag & FC_PT2PT_PLOGI)) {
289 /* If the other side is supposed to initiate
290 * the PLOGI anyway, just ACC it now and
291 * move on with discovery.
292 */
293 phba->fc_edtov = FF_DEF_EDTOV;
294 phba->fc_ratov = FF_DEF_RATOV;
295 /* Start discovery - this should just do
296 CLEAR_LA */
297 lpfc_disc_start(phba);
2fe165b6 298 } else {
dea3101e 299 lpfc_initial_flogi(phba);
300 }
2fe165b6 301 } else {
dea3101e 302 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
303 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
304 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb,
305 ndlp);
306 return 0;
307 }
308 }
309 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
310 lp = (uint32_t *) pcmd->virt;
311 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
312 if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3) == 0)) {
313 /* Reject this request because invalid parameters */
314 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
315 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
316 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
c9f8735b 317 return 0;
dea3101e 318 }
319 icmd = &cmdiocb->iocb;
320
321 /* PLOGI chkparm OK */
322 lpfc_printf_log(phba,
323 KERN_INFO,
324 LOG_ELS,
325 "%d:0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
326 phba->brd_no,
327 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
328 ndlp->nlp_rpi);
329
330 if ((phba->cfg_fcp_class == 2) &&
331 (sp->cls2.classValid)) {
332 ndlp->nlp_fcp_info |= CLASS2;
333 } else {
334 ndlp->nlp_fcp_info |= CLASS3;
335 }
336 ndlp->nlp_class_sup = 0;
337 if (sp->cls1.classValid)
338 ndlp->nlp_class_sup |= FC_COS_CLASS1;
339 if (sp->cls2.classValid)
340 ndlp->nlp_class_sup |= FC_COS_CLASS2;
341 if (sp->cls3.classValid)
342 ndlp->nlp_class_sup |= FC_COS_CLASS3;
343 if (sp->cls4.classValid)
344 ndlp->nlp_class_sup |= FC_COS_CLASS4;
345 ndlp->nlp_maxframe =
346 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
347
348 /* no need to reg_login if we are already in one of these states */
2fe165b6 349 switch (ndlp->nlp_state) {
dea3101e 350 case NLP_STE_NPR_NODE:
351 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
352 break;
353 case NLP_STE_REG_LOGIN_ISSUE:
354 case NLP_STE_PRLI_ISSUE:
355 case NLP_STE_UNMAPPED_NODE:
356 case NLP_STE_MAPPED_NODE:
357 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, 0);
c9f8735b 358 return 1;
dea3101e 359 }
360
361 if ((phba->fc_flag & FC_PT2PT)
362 && !(phba->fc_flag & FC_PT2PT_PLOGI)) {
363 /* rcv'ed PLOGI decides what our NPortId will be */
364 phba->fc_myDID = icmd->un.rcvels.parmRo;
365 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
366 if (mbox == NULL)
367 goto out;
368 lpfc_config_link(phba, mbox);
369 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
370 rc = lpfc_sli_issue_mbox
371 (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
372 if (rc == MBX_NOT_FINISHED) {
373 mempool_free( mbox, phba->mbox_mem_pool);
374 goto out;
375 }
376
377 lpfc_can_disctmo(phba);
378 }
379 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
380 if (mbox == NULL)
381 goto out;
382
383 if (lpfc_reg_login(phba, icmd->un.rcvels.remoteID,
384 (uint8_t *) sp, mbox, 0)) {
385 mempool_free( mbox, phba->mbox_mem_pool);
386 goto out;
387 }
388
389 /* ACC PLOGI rsp command needs to execute first,
390 * queue this mbox command to be processed later.
391 */
392 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
393 mbox->context2 = ndlp;
5024ab17 394 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
dea3101e 395
dea3101e 396 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0);
c9f8735b 397 return 1;
dea3101e 398
399out:
400 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
401 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
402 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
c9f8735b 403 return 0;
dea3101e 404}
405
406static int
407lpfc_rcv_padisc(struct lpfc_hba * phba,
408 struct lpfc_nodelist * ndlp,
409 struct lpfc_iocbq *cmdiocb)
410{
411 struct lpfc_dmabuf *pcmd;
412 struct serv_parm *sp;
413 struct lpfc_name *pnn, *ppn;
414 struct ls_rjt stat;
415 ADISC *ap;
416 IOCB_t *icmd;
417 uint32_t *lp;
418 uint32_t cmd;
419
420 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
421 lp = (uint32_t *) pcmd->virt;
422
423 cmd = *lp++;
424 if (cmd == ELS_CMD_ADISC) {
425 ap = (ADISC *) lp;
426 pnn = (struct lpfc_name *) & ap->nodeName;
427 ppn = (struct lpfc_name *) & ap->portName;
428 } else {
429 sp = (struct serv_parm *) lp;
430 pnn = (struct lpfc_name *) & sp->nodeName;
431 ppn = (struct lpfc_name *) & sp->portName;
432 }
433
434 icmd = &cmdiocb->iocb;
435 if ((icmd->ulpStatus == 0) &&
436 (lpfc_check_adisc(phba, ndlp, pnn, ppn))) {
437 if (cmd == ELS_CMD_ADISC) {
438 lpfc_els_rsp_adisc_acc(phba, cmdiocb, ndlp);
2fe165b6 439 } else {
dea3101e 440 lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp,
441 NULL, 0);
442 }
c9f8735b 443 return 1;
dea3101e 444 }
445 /* Reject this request because invalid parameters */
446 stat.un.b.lsRjtRsvd0 = 0;
447 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
448 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
449 stat.un.b.vendorUnique = 0;
450 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
451
dea3101e 452 /* 1 sec timeout */
453 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
454
455 spin_lock_irq(phba->host->host_lock);
456 ndlp->nlp_flag |= NLP_DELAY_TMO;
457 spin_unlock_irq(phba->host->host_lock);
5024ab17
JW		 458 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
459 ndlp->nlp_prev_state = ndlp->nlp_state;
dea3101e 460 ndlp->nlp_state = NLP_STE_NPR_NODE;
461 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
c9f8735b 462 return 0;
dea3101e 463}
464
465static int
466lpfc_rcv_logo(struct lpfc_hba * phba,
467 struct lpfc_nodelist * ndlp,
468 struct lpfc_iocbq *cmdiocb)
469{
470 /* Put ndlp on NPR list with 1 sec timeout for plogi, ACC logo */
471 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
472 * PLOGIs during LOGO storms from a device.
473 */
474 ndlp->nlp_flag |= NLP_LOGO_ACC;
475 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
476
c9f8735b
JW		 477 if (!(ndlp->nlp_type & NLP_FABRIC) ||
478 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
dea3101e 479 /* Only try to re-login if this is NOT a Fabric Node */
dea3101e 480 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
481 spin_lock_irq(phba->host->host_lock);
482 ndlp->nlp_flag |= NLP_DELAY_TMO;
483 spin_unlock_irq(phba->host->host_lock);
dea3101e 484
5024ab17
JW		 485 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
486 ndlp->nlp_prev_state = ndlp->nlp_state;
c9f8735b
JW		 487 ndlp->nlp_state = NLP_STE_NPR_NODE;
488 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
489 } else {
5024ab17 490 ndlp->nlp_prev_state = ndlp->nlp_state;
c9f8735b
JW		 491 ndlp->nlp_state = NLP_STE_UNUSED_NODE;
492 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
493 }
dea3101e 494
c9f8735b 495 spin_lock_irq(phba->host->host_lock);
dea3101e 496 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
c9f8735b 497 spin_unlock_irq(phba->host->host_lock);
dea3101e 498 /* The driver has to wait until the ACC completes before it continues
499 * processing the LOGO. The action will resume in
500 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
501 * unreg_login, the driver waits so the ACC does not get aborted.
502 */
c9f8735b 503 return 0;
dea3101e 504}
505
506static void
507lpfc_rcv_prli(struct lpfc_hba * phba,
508 struct lpfc_nodelist * ndlp,
509 struct lpfc_iocbq *cmdiocb)
510{
511 struct lpfc_dmabuf *pcmd;
512 uint32_t *lp;
513 PRLI *npr;
514 struct fc_rport *rport = ndlp->rport;
515 u32 roles;
516
517 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
518 lp = (uint32_t *) pcmd->virt;
519 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
520
521 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
522 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
523 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
524 (npr->prliType == PRLI_FCP_TYPE)) {
525 if (npr->initiatorFunc)
526 ndlp->nlp_type |= NLP_FCP_INITIATOR;
527 if (npr->targetFunc)
528 ndlp->nlp_type |= NLP_FCP_TARGET;
529 if (npr->Retry)
530 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
531 }
532 if (rport) {
533 /* We need to update the rport role values */
534 roles = FC_RPORT_ROLE_UNKNOWN;
535 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
536 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
537 if (ndlp->nlp_type & NLP_FCP_TARGET)
538 roles |= FC_RPORT_ROLE_FCP_TARGET;
539 fc_remote_port_rolechg(rport, roles);
540 }
541}
542
543static uint32_t
544lpfc_disc_set_adisc(struct lpfc_hba * phba,
545 struct lpfc_nodelist * ndlp)
546{
547 /* Check config parameter use-adisc or FCP-2 */
548 if ((phba->cfg_use_adisc == 0) &&
549 !(phba->fc_flag & FC_RSCN_MODE)) {
550 if (!(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE))
c9f8735b 551 return 0;
dea3101e 552 }
553 spin_lock_irq(phba->host->host_lock);
554 ndlp->nlp_flag |= NLP_NPR_ADISC;
555 spin_unlock_irq(phba->host->host_lock);
c9f8735b 556 return 1;
dea3101e 557}
558
559static uint32_t
560lpfc_disc_illegal(struct lpfc_hba * phba,
561 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
562{
563 lpfc_printf_log(phba,
564 KERN_ERR,
565 LOG_DISCOVERY,
566 "%d:0253 Illegal State Transition: node x%x event x%x, "
567 "state x%x Data: x%x x%x\n",
568 phba->brd_no,
569 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
570 ndlp->nlp_flag);
c9f8735b 571 return ndlp->nlp_state;
dea3101e 572}
573
574/* Start of Discovery State Machine routines */
575
576static uint32_t
577lpfc_rcv_plogi_unused_node(struct lpfc_hba * phba,
578 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
579{
580 struct lpfc_iocbq *cmdiocb;
581
582 cmdiocb = (struct lpfc_iocbq *) arg;
583
584 if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
5024ab17 585 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
dea3101e 586 ndlp->nlp_state = NLP_STE_UNUSED_NODE;
587 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
c9f8735b 588 return ndlp->nlp_state;
dea3101e 589 }
590 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 591 return NLP_STE_FREED_NODE;
dea3101e 592}
593
594static uint32_t
595lpfc_rcv_els_unused_node(struct lpfc_hba * phba,
596 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
597{
598 lpfc_issue_els_logo(phba, ndlp, 0);
599 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
c9f8735b 600 return ndlp->nlp_state;
dea3101e 601}
602
603static uint32_t
604lpfc_rcv_logo_unused_node(struct lpfc_hba * phba,
605 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
606{
607 struct lpfc_iocbq *cmdiocb;
608
609 cmdiocb = (struct lpfc_iocbq *) arg;
610
611 spin_lock_irq(phba->host->host_lock);
612 ndlp->nlp_flag |= NLP_LOGO_ACC;
613 spin_unlock_irq(phba->host->host_lock);
614 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
615 lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST);
616
c9f8735b 617 return ndlp->nlp_state;
dea3101e 618}
619
620static uint32_t
621lpfc_cmpl_logo_unused_node(struct lpfc_hba * phba,
622 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
623{
624 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 625 return NLP_STE_FREED_NODE;
dea3101e 626}
627
628static uint32_t
629lpfc_device_rm_unused_node(struct lpfc_hba * phba,
630 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
631{
632 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 633 return NLP_STE_FREED_NODE;
dea3101e 634}
635
636static uint32_t
637lpfc_rcv_plogi_plogi_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
638 void *arg, uint32_t evt)
639{
640 struct lpfc_iocbq *cmdiocb = arg;
641 struct lpfc_dmabuf *pcmd;
642 struct serv_parm *sp;
643 uint32_t *lp;
644 struct ls_rjt stat;
645 int port_cmp;
646
647 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
648 lp = (uint32_t *) pcmd->virt;
649 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
650
651 memset(&stat, 0, sizeof (struct ls_rjt));
652
653 /* For a PLOGI, we only accept if our portname is less
654 * than the remote portname.
655 */
656 phba->fc_stat.elsLogiCol++;
657 port_cmp = memcmp(&phba->fc_portname, &sp->portName,
658 sizeof (struct lpfc_name));
659
660 if (port_cmp >= 0) {
661 /* Reject this request because the remote node will accept
662 ours */
663 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
664 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
665 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
2fe165b6 666 } else {
dea3101e 667 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
668 } /* if our portname was less */
669
c9f8735b
JW		 670 return ndlp->nlp_state;
671}
672
673static uint32_t
674lpfc_rcv_logo_plogi_issue(struct lpfc_hba * phba,
675 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
676{
677 struct lpfc_iocbq *cmdiocb;
678
679 cmdiocb = (struct lpfc_iocbq *) arg;
680
681 /* software abort outstanding PLOGI */
682 lpfc_els_abort(phba, ndlp, 1);
683
684 lpfc_rcv_logo(phba, ndlp, cmdiocb);
685 return ndlp->nlp_state;
dea3101e 686}
687
688static uint32_t
689lpfc_rcv_els_plogi_issue(struct lpfc_hba * phba,
690 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
691{
692 struct lpfc_iocbq *cmdiocb;
693
694 cmdiocb = (struct lpfc_iocbq *) arg;
695
696 /* software abort outstanding PLOGI */
697 lpfc_els_abort(phba, ndlp, 1);
dea3101e 698
699 if (evt == NLP_EVT_RCV_LOGO) {
700 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
2fe165b6 701 } else {
dea3101e 702 lpfc_issue_els_logo(phba, ndlp, 0);
703 }
704
705 /* Put ndlp in npr list set plogi timer for 1 sec */
5024ab17
JW		 706 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
707 spin_lock_irq(phba->host->host_lock);
708 ndlp->nlp_flag |= NLP_DELAY_TMO;
709 spin_unlock_irq(phba->host->host_lock);
710 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
711 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
dea3101e 712 ndlp->nlp_state = NLP_STE_NPR_NODE;
713 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
714
c9f8735b 715 return ndlp->nlp_state;
dea3101e 716}
717
718static uint32_t
719lpfc_cmpl_plogi_plogi_issue(struct lpfc_hba * phba,
720 struct lpfc_nodelist * ndlp, void *arg,
721 uint32_t evt)
722{
723 struct lpfc_iocbq *cmdiocb, *rspiocb;
724 struct lpfc_dmabuf *pcmd, *prsp;
725 uint32_t *lp;
726 IOCB_t *irsp;
727 struct serv_parm *sp;
728 LPFC_MBOXQ_t *mbox;
729
730 cmdiocb = (struct lpfc_iocbq *) arg;
731 rspiocb = cmdiocb->context_un.rsp_iocb;
732
733 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
5024ab17 734 /* Recovery from PLOGI collision logic */
c9f8735b 735 return ndlp->nlp_state;
dea3101e 736 }
737
738 irsp = &rspiocb->iocb;
739
740 if (irsp->ulpStatus)
741 goto out;
742
743 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
744
745 prsp = list_get_first(&pcmd->list,
746 struct lpfc_dmabuf,
747 list);
748 lp = (uint32_t *) prsp->virt;
749
750 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
751 if (!lpfc_check_sparm(phba, ndlp, sp, CLASS3))
752 goto out;
753
754 /* PLOGI chkparm OK */
755 lpfc_printf_log(phba,
756 KERN_INFO,
757 LOG_ELS,
758 "%d:0121 PLOGI chkparm OK "
759 "Data: x%x x%x x%x x%x\n",
760 phba->brd_no,
761 ndlp->nlp_DID, ndlp->nlp_state,
762 ndlp->nlp_flag, ndlp->nlp_rpi);
763
764 if ((phba->cfg_fcp_class == 2) &&
765 (sp->cls2.classValid)) {
766 ndlp->nlp_fcp_info |= CLASS2;
767 } else {
768 ndlp->nlp_fcp_info |= CLASS3;
769 }
770 ndlp->nlp_class_sup = 0;
771 if (sp->cls1.classValid)
772 ndlp->nlp_class_sup |= FC_COS_CLASS1;
773 if (sp->cls2.classValid)
774 ndlp->nlp_class_sup |= FC_COS_CLASS2;
775 if (sp->cls3.classValid)
776 ndlp->nlp_class_sup |= FC_COS_CLASS3;
777 if (sp->cls4.classValid)
778 ndlp->nlp_class_sup |= FC_COS_CLASS4;
779 ndlp->nlp_maxframe =
780 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
781 sp->cmn.bbRcvSizeLsb;
782
783 if (!(mbox = mempool_alloc(phba->mbox_mem_pool,
784 GFP_KERNEL)))
785 goto out;
786
787 lpfc_unreg_rpi(phba, ndlp);
788 if (lpfc_reg_login
789 (phba, irsp->un.elsreq64.remoteID,
790 (uint8_t *) sp, mbox, 0) == 0) {
791 /* set_slim mailbox command needs to
792 * execute first, queue this command to
793 * be processed later.
794 */
2fe165b6 795 switch (ndlp->nlp_DID) {
dea3101e 796 case NameServer_DID:
797 mbox->mbox_cmpl =
798 lpfc_mbx_cmpl_ns_reg_login;
799 break;
800 case FDMI_DID:
801 mbox->mbox_cmpl =
802 lpfc_mbx_cmpl_fdmi_reg_login;
803 break;
804 default:
805 mbox->mbox_cmpl =
806 lpfc_mbx_cmpl_reg_login;
807 }
808 mbox->context2 = ndlp;
809 if (lpfc_sli_issue_mbox(phba, mbox,
810 (MBX_NOWAIT | MBX_STOP_IOCB))
811 != MBX_NOT_FINISHED) {
812 ndlp->nlp_state =
813 NLP_STE_REG_LOGIN_ISSUE;
814 lpfc_nlp_list(phba, ndlp,
815 NLP_REGLOGIN_LIST);
c9f8735b 816 return ndlp->nlp_state;
dea3101e 817 }
818 mempool_free(mbox, phba->mbox_mem_pool);
819 } else {
820 mempool_free(mbox, phba->mbox_mem_pool);
821 }
822
823
824 out:
825 /* Free this node since the driver cannot login or has the wrong
826 sparm */
827 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 828 return NLP_STE_FREED_NODE;
dea3101e 829}
830
831static uint32_t
832lpfc_device_rm_plogi_issue(struct lpfc_hba * phba,
833 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
834{
835 /* software abort outstanding PLOGI */
836 lpfc_els_abort(phba, ndlp, 1);
837
838 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 839 return NLP_STE_FREED_NODE;
dea3101e 840}
841
842static uint32_t
843lpfc_device_recov_plogi_issue(struct lpfc_hba * phba,
844 struct lpfc_nodelist * ndlp, void *arg,
845 uint32_t evt)
846{
847 /* software abort outstanding PLOGI */
848 lpfc_els_abort(phba, ndlp, 1);
849
5024ab17 850 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
dea3101e 851 ndlp->nlp_state = NLP_STE_NPR_NODE;
852 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
853 spin_lock_irq(phba->host->host_lock);
854 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
855 spin_unlock_irq(phba->host->host_lock);
856
c9f8735b 857 return ndlp->nlp_state;
dea3101e 858}
859
860static uint32_t
861lpfc_rcv_plogi_adisc_issue(struct lpfc_hba * phba,
862 struct lpfc_nodelist * ndlp, void *arg,
863 uint32_t evt)
864{
865 struct lpfc_iocbq *cmdiocb;
866
867 /* software abort outstanding ADISC */
868 lpfc_els_abort(phba, ndlp, 1);
869
870 cmdiocb = (struct lpfc_iocbq *) arg;
871
872 if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
c9f8735b 873 return ndlp->nlp_state;
dea3101e 874 }
5024ab17 875 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
dea3101e 876 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
877 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
488d1469 878 lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
dea3101e 879
c9f8735b 880 return ndlp->nlp_state;
dea3101e 881}
882
883static uint32_t
884lpfc_rcv_prli_adisc_issue(struct lpfc_hba * phba,
885 struct lpfc_nodelist * ndlp, void *arg,
886 uint32_t evt)
887{
888 struct lpfc_iocbq *cmdiocb;
889
890 cmdiocb = (struct lpfc_iocbq *) arg;
891
892 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 893 return ndlp->nlp_state;
dea3101e 894}
895
896static uint32_t
897lpfc_rcv_logo_adisc_issue(struct lpfc_hba * phba,
898 struct lpfc_nodelist * ndlp, void *arg,
899 uint32_t evt)
900{
901 struct lpfc_iocbq *cmdiocb;
902
903 cmdiocb = (struct lpfc_iocbq *) arg;
904
905 /* software abort outstanding ADISC */
906 lpfc_els_abort(phba, ndlp, 0);
907
908 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 909 return ndlp->nlp_state;
dea3101e 910}
911
912static uint32_t
913lpfc_rcv_padisc_adisc_issue(struct lpfc_hba * phba,
914 struct lpfc_nodelist * ndlp, void *arg,
915 uint32_t evt)
916{
917 struct lpfc_iocbq *cmdiocb;
918
919 cmdiocb = (struct lpfc_iocbq *) arg;
920
921 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 922 return ndlp->nlp_state;
dea3101e 923}
924
925static uint32_t
926lpfc_rcv_prlo_adisc_issue(struct lpfc_hba * phba,
927 struct lpfc_nodelist * ndlp, void *arg,
928 uint32_t evt)
929{
930 struct lpfc_iocbq *cmdiocb;
931
932 cmdiocb = (struct lpfc_iocbq *) arg;
933
934 /* Treat like rcv logo */
935 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 936 return ndlp->nlp_state;
dea3101e 937}
938
939static uint32_t
940lpfc_cmpl_adisc_adisc_issue(struct lpfc_hba * phba,
941 struct lpfc_nodelist * ndlp, void *arg,
942 uint32_t evt)
943{
944 struct lpfc_iocbq *cmdiocb, *rspiocb;
945 IOCB_t *irsp;
946 ADISC *ap;
947
948 cmdiocb = (struct lpfc_iocbq *) arg;
949 rspiocb = cmdiocb->context_un.rsp_iocb;
950
951 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
952 irsp = &rspiocb->iocb;
953
954 if ((irsp->ulpStatus) ||
955 (!lpfc_check_adisc(phba, ndlp, &ap->nodeName, &ap->portName))) {
dea3101e 956 /* 1 sec timeout */
957 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
958 spin_lock_irq(phba->host->host_lock);
959 ndlp->nlp_flag |= NLP_DELAY_TMO;
960 spin_unlock_irq(phba->host->host_lock);
5024ab17 961 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 962
963 memset(&ndlp->nlp_nodename, 0, sizeof (struct lpfc_name));
964 memset(&ndlp->nlp_portname, 0, sizeof (struct lpfc_name));
965
5024ab17 966 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
dea3101e 967 ndlp->nlp_state = NLP_STE_NPR_NODE;
968 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
969 lpfc_unreg_rpi(phba, ndlp);
c9f8735b 970 return ndlp->nlp_state;
dea3101e 971 }
5024ab17 972
2501322e 973 if (ndlp->nlp_type & NLP_FCP_TARGET) {
5024ab17 974 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2501322e
JSEC		 975 ndlp->nlp_state = NLP_STE_MAPPED_NODE;
976 lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
977 } else {
5024ab17 978 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2501322e
JSEC		 979 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
980 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
981 }
c9f8735b 982 return ndlp->nlp_state;
dea3101e 983}
984
985static uint32_t
986lpfc_device_rm_adisc_issue(struct lpfc_hba * phba,
987 struct lpfc_nodelist * ndlp, void *arg,
988 uint32_t evt)
989{
990 /* software abort outstanding ADISC */
991 lpfc_els_abort(phba, ndlp, 1);
992
993 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 994 return NLP_STE_FREED_NODE;
dea3101e 995}
996
997static uint32_t
998lpfc_device_recov_adisc_issue(struct lpfc_hba * phba,
999 struct lpfc_nodelist * ndlp, void *arg,
1000 uint32_t evt)
1001{
1002 /* software abort outstanding ADISC */
1003 lpfc_els_abort(phba, ndlp, 1);
1004
5024ab17 1005 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
dea3101e 1006 ndlp->nlp_state = NLP_STE_NPR_NODE;
1007 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1008 spin_lock_irq(phba->host->host_lock);
1009 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
c9f8735b 1010 ndlp->nlp_flag |= NLP_NPR_ADISC;
dea3101e 1011 spin_unlock_irq(phba->host->host_lock);
1012
c9f8735b 1013 return ndlp->nlp_state;
dea3101e 1014}
1015
1016static uint32_t
1017lpfc_rcv_plogi_reglogin_issue(struct lpfc_hba * phba,
1018 struct lpfc_nodelist * ndlp, void *arg,
1019 uint32_t evt)
1020{
1021 struct lpfc_iocbq *cmdiocb;
1022
1023 cmdiocb = (struct lpfc_iocbq *) arg;
1024
1025 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
c9f8735b 1026 return ndlp->nlp_state;
dea3101e 1027}
1028
1029static uint32_t
1030lpfc_rcv_prli_reglogin_issue(struct lpfc_hba * phba,
1031 struct lpfc_nodelist * ndlp, void *arg,
1032 uint32_t evt)
1033{
1034 struct lpfc_iocbq *cmdiocb;
1035
1036 cmdiocb = (struct lpfc_iocbq *) arg;
1037
1038 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 1039 return ndlp->nlp_state;
dea3101e 1040}
1041
1042static uint32_t
1043lpfc_rcv_logo_reglogin_issue(struct lpfc_hba * phba,
1044 struct lpfc_nodelist * ndlp, void *arg,
1045 uint32_t evt)
1046{
1047 struct lpfc_iocbq *cmdiocb;
1048
1049 cmdiocb = (struct lpfc_iocbq *) arg;
1050
1051 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1052 return ndlp->nlp_state;
dea3101e 1053}
1054
1055static uint32_t
1056lpfc_rcv_padisc_reglogin_issue(struct lpfc_hba * phba,
1057 struct lpfc_nodelist * ndlp, void *arg,
1058 uint32_t evt)
1059{
1060 struct lpfc_iocbq *cmdiocb;
1061
1062 cmdiocb = (struct lpfc_iocbq *) arg;
1063
1064 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 1065 return ndlp->nlp_state;
dea3101e 1066}
1067
1068static uint32_t
1069lpfc_rcv_prlo_reglogin_issue(struct lpfc_hba * phba,
1070 struct lpfc_nodelist * ndlp, void *arg,
1071 uint32_t evt)
1072{
1073 struct lpfc_iocbq *cmdiocb;
1074
1075 cmdiocb = (struct lpfc_iocbq *) arg;
1076 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
c9f8735b 1077 return ndlp->nlp_state;
dea3101e 1078}
1079
1080static uint32_t
1081lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_hba * phba,
1082 struct lpfc_nodelist * ndlp,
1083 void *arg, uint32_t evt)
1084{
1085 LPFC_MBOXQ_t *pmb;
1086 MAILBOX_t *mb;
1087 uint32_t did;
1088
1089 pmb = (LPFC_MBOXQ_t *) arg;
1090 mb = &pmb->mb;
1091 did = mb->un.varWords[1];
1092 if (mb->mbxStatus) {
1093 /* RegLogin failed */
1094 lpfc_printf_log(phba,
1095 KERN_ERR,
1096 LOG_DISCOVERY,
1097 "%d:0246 RegLogin failed Data: x%x x%x x%x\n",
1098 phba->brd_no,
1099 did, mb->mbxStatus, phba->hba_state);
1100
5024ab17 1101 /* Put ndlp in npr list set plogi timer for 1 sec */
dea3101e 1102 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1103 spin_lock_irq(phba->host->host_lock);
1104 ndlp->nlp_flag |= NLP_DELAY_TMO;
1105 spin_unlock_irq(phba->host->host_lock);
5024ab17 1106 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1107
1108 lpfc_issue_els_logo(phba, ndlp, 0);
5024ab17 1109 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
dea3101e 1110 ndlp->nlp_state = NLP_STE_NPR_NODE;
1111 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
c9f8735b 1112 return ndlp->nlp_state;
dea3101e 1113 }
1114
dea3101e 1115 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1116
1117 /* Only if we are not a fabric nport do we issue PRLI */
1118 if (!(ndlp->nlp_type & NLP_FABRIC)) {
5024ab17 1119 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
dea3101e 1120 ndlp->nlp_state = NLP_STE_PRLI_ISSUE;
1121 lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST);
1122 lpfc_issue_els_prli(phba, ndlp, 0);
1123 } else {
5024ab17 1124 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
dea3101e 1125 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1126 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
1127 }
c9f8735b 1128 return ndlp->nlp_state;
dea3101e 1129}
1130
1131static uint32_t
1132lpfc_device_rm_reglogin_issue(struct lpfc_hba * phba,
1133 struct lpfc_nodelist * ndlp, void *arg,
1134 uint32_t evt)
1135{
1136 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 1137 return NLP_STE_FREED_NODE;
dea3101e 1138}
1139
1140static uint32_t
1141lpfc_device_recov_reglogin_issue(struct lpfc_hba * phba,
1142 struct lpfc_nodelist * ndlp, void *arg,
1143 uint32_t evt)
1144{
5024ab17 1145 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
dea3101e 1146 ndlp->nlp_state = NLP_STE_NPR_NODE;
1147 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1148 spin_lock_irq(phba->host->host_lock);
1149 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1150 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1151 return ndlp->nlp_state;
dea3101e 1152}
1153
1154static uint32_t
1155lpfc_rcv_plogi_prli_issue(struct lpfc_hba * phba,
1156 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1157{
1158 struct lpfc_iocbq *cmdiocb;
1159
1160 cmdiocb = (struct lpfc_iocbq *) arg;
1161
1162 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
c9f8735b 1163 return ndlp->nlp_state;
dea3101e 1164}
1165
1166static uint32_t
1167lpfc_rcv_prli_prli_issue(struct lpfc_hba * phba,
1168 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1169{
1170 struct lpfc_iocbq *cmdiocb;
1171
1172 cmdiocb = (struct lpfc_iocbq *) arg;
1173
1174 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 1175 return ndlp->nlp_state;
dea3101e 1176}
1177
1178static uint32_t
1179lpfc_rcv_logo_prli_issue(struct lpfc_hba * phba,
1180 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1181{
1182 struct lpfc_iocbq *cmdiocb;
1183
1184 cmdiocb = (struct lpfc_iocbq *) arg;
1185
1186 /* Software abort outstanding PRLI before sending acc */
1187 lpfc_els_abort(phba, ndlp, 1);
1188
1189 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1190 return ndlp->nlp_state;
dea3101e 1191}
1192
1193static uint32_t
1194lpfc_rcv_padisc_prli_issue(struct lpfc_hba * phba,
1195 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1196{
1197 struct lpfc_iocbq *cmdiocb;
1198
1199 cmdiocb = (struct lpfc_iocbq *) arg;
1200
1201 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 1202 return ndlp->nlp_state;
dea3101e 1203}
1204
1205/* This routine is envoked when we rcv a PRLO request from a nport
1206 * we are logged into. We should send back a PRLO rsp setting the
1207 * appropriate bits.
1208 * NEXT STATE = PRLI_ISSUE
1209 */
1210static uint32_t
1211lpfc_rcv_prlo_prli_issue(struct lpfc_hba * phba,
1212 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1213{
1214 struct lpfc_iocbq *cmdiocb;
1215
1216 cmdiocb = (struct lpfc_iocbq *) arg;
1217 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
c9f8735b 1218 return ndlp->nlp_state;
dea3101e 1219}
1220
1221static uint32_t
1222lpfc_cmpl_prli_prli_issue(struct lpfc_hba * phba,
1223 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1224{
1225 struct lpfc_iocbq *cmdiocb, *rspiocb;
1226 IOCB_t *irsp;
1227 PRLI *npr;
1228
1229 cmdiocb = (struct lpfc_iocbq *) arg;
1230 rspiocb = cmdiocb->context_un.rsp_iocb;
1231 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1232
1233 irsp = &rspiocb->iocb;
1234 if (irsp->ulpStatus) {
5024ab17 1235 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
dea3101e 1236 ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
1237 lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
c9f8735b 1238 return ndlp->nlp_state;
dea3101e 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
5024ab17 1254 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
dea3101e 1255 ndlp->nlp_state = NLP_STE_MAPPED_NODE;
1256 lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST);
c9f8735b 1257 return ndlp->nlp_state;
dea3101e 1258}
1259
1260/*! lpfc_device_rm_prli_issue
1261 *
1262 * \pre
1263 * \post
1264 * \param phba
1265 * \param ndlp
1266 * \param arg
1267 * \param evt
1268 * \return uint32_t
1269 *
1270 * \b Description:
1271 * This routine is envoked when we a request to remove a nport we are in the
1272 * process of PRLIing. We should software abort outstanding prli, unreg
1273 * login, send a logout. We will change node state to UNUSED_NODE, put it
1274 * on plogi list so it can be freed when LOGO completes.
1275 *
1276 */
1277static uint32_t
1278lpfc_device_rm_prli_issue(struct lpfc_hba * phba,
1279 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1280{
1281 /* software abort outstanding PRLI */
1282 lpfc_els_abort(phba, ndlp, 1);
1283
1284 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 1285 return NLP_STE_FREED_NODE;
dea3101e 1286}
1287
1288
1289/*! lpfc_device_recov_prli_issue
1290 *
1291 * \pre
1292 * \post
1293 * \param phba
1294 * \param ndlp
1295 * \param arg
1296 * \param evt
1297 * \return uint32_t
1298 *
1299 * \b Description:
1300 * The routine is envoked when the state of a device is unknown, like
1301 * during a link down. We should remove the nodelist entry from the
1302 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1303 * outstanding PRLI command, then free the node entry.
1304 */
1305static uint32_t
1306lpfc_device_recov_prli_issue(struct lpfc_hba * phba,
1307 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1308{
1309 /* software abort outstanding PRLI */
1310 lpfc_els_abort(phba, ndlp, 1);
1311
5024ab17 1312 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
dea3101e 1313 ndlp->nlp_state = NLP_STE_NPR_NODE;
1314 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1315 spin_lock_irq(phba->host->host_lock);
1316 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1317 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1318 return ndlp->nlp_state;
dea3101e 1319}
1320
1321static uint32_t
1322lpfc_rcv_plogi_unmap_node(struct lpfc_hba * phba,
1323 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1324{
1325 struct lpfc_iocbq *cmdiocb;
1326
1327 cmdiocb = (struct lpfc_iocbq *) arg;
1328
1329 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
c9f8735b 1330 return ndlp->nlp_state;
dea3101e 1331}
1332
1333static uint32_t
1334lpfc_rcv_prli_unmap_node(struct lpfc_hba * phba,
1335 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1336{
1337 struct lpfc_iocbq *cmdiocb;
1338
1339 cmdiocb = (struct lpfc_iocbq *) arg;
1340
1341 lpfc_rcv_prli(phba, ndlp, cmdiocb);
1342 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 1343 return ndlp->nlp_state;
dea3101e 1344}
1345
1346static uint32_t
1347lpfc_rcv_logo_unmap_node(struct lpfc_hba * phba,
1348 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1349{
1350 struct lpfc_iocbq *cmdiocb;
1351
1352 cmdiocb = (struct lpfc_iocbq *) arg;
1353
1354 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1355 return ndlp->nlp_state;
dea3101e 1356}
1357
1358static uint32_t
1359lpfc_rcv_padisc_unmap_node(struct lpfc_hba * phba,
1360 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1361{
1362 struct lpfc_iocbq *cmdiocb;
1363
1364 cmdiocb = (struct lpfc_iocbq *) arg;
1365
1366 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 1367 return ndlp->nlp_state;
dea3101e 1368}
1369
1370static uint32_t
1371lpfc_rcv_prlo_unmap_node(struct lpfc_hba * phba,
1372 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1373{
1374 struct lpfc_iocbq *cmdiocb;
1375
1376 cmdiocb = (struct lpfc_iocbq *) arg;
1377
c9f8735b
JW		 1378 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
1379 return ndlp->nlp_state;
dea3101e 1380}
1381
1382static uint32_t
1383lpfc_device_recov_unmap_node(struct lpfc_hba * phba,
1384 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1385{
5024ab17 1386 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
dea3101e 1387 ndlp->nlp_state = NLP_STE_NPR_NODE;
1388 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1389 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1390 lpfc_disc_set_adisc(phba, ndlp);
1391
c9f8735b 1392 return ndlp->nlp_state;
dea3101e 1393}
1394
1395static uint32_t
1396lpfc_rcv_plogi_mapped_node(struct lpfc_hba * phba,
1397 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1398{
1399 struct lpfc_iocbq *cmdiocb;
1400
1401 cmdiocb = (struct lpfc_iocbq *) arg;
1402
1403 lpfc_rcv_plogi(phba, ndlp, cmdiocb);
c9f8735b 1404 return ndlp->nlp_state;
dea3101e 1405}
1406
1407static uint32_t
1408lpfc_rcv_prli_mapped_node(struct lpfc_hba * phba,
1409 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1410{
1411 struct lpfc_iocbq *cmdiocb;
1412
1413 cmdiocb = (struct lpfc_iocbq *) arg;
1414
1415 lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp);
c9f8735b 1416 return ndlp->nlp_state;
dea3101e 1417}
1418
1419static uint32_t
1420lpfc_rcv_logo_mapped_node(struct lpfc_hba * phba,
1421 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1422{
1423 struct lpfc_iocbq *cmdiocb;
1424
1425 cmdiocb = (struct lpfc_iocbq *) arg;
1426
1427 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1428 return ndlp->nlp_state;
dea3101e 1429}
1430
1431static uint32_t
1432lpfc_rcv_padisc_mapped_node(struct lpfc_hba * phba,
1433 struct lpfc_nodelist * ndlp, void *arg,
1434 uint32_t evt)
1435{
1436 struct lpfc_iocbq *cmdiocb;
1437
1438 cmdiocb = (struct lpfc_iocbq *) arg;
1439
1440 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
c9f8735b 1441 return ndlp->nlp_state;
dea3101e 1442}
1443
1444static uint32_t
1445lpfc_rcv_prlo_mapped_node(struct lpfc_hba * phba,
1446 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1447{
1448 struct lpfc_iocbq *cmdiocb;
1449
1450 cmdiocb = (struct lpfc_iocbq *) arg;
1451
1452 /* flush the target */
1453 spin_lock_irq(phba->host->host_lock);
1454 lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
1455 ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
1456 spin_unlock_irq(phba->host->host_lock);
1457
1458 /* Treat like rcv logo */
1459 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1460 return ndlp->nlp_state;
dea3101e 1461}
1462
1463static uint32_t
1464lpfc_device_recov_mapped_node(struct lpfc_hba * phba,
1465 struct lpfc_nodelist * ndlp, void *arg,
1466 uint32_t evt)
1467{
5024ab17 1468 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
dea3101e 1469 ndlp->nlp_state = NLP_STE_NPR_NODE;
1470 lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
1471 spin_lock_irq(phba->host->host_lock);
1472 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1473 spin_unlock_irq(phba->host->host_lock);
1474 lpfc_disc_set_adisc(phba, ndlp);
c9f8735b 1475 return ndlp->nlp_state;
dea3101e 1476}
1477
1478static uint32_t
1479lpfc_rcv_plogi_npr_node(struct lpfc_hba * phba,
1480 struct lpfc_nodelist * ndlp, void *arg,
1481 uint32_t evt)
1482{
1483 struct lpfc_iocbq *cmdiocb;
1484
1485 cmdiocb = (struct lpfc_iocbq *) arg;
1486
1487 /* Ignore PLOGI if we have an outstanding LOGO */
1488 if (ndlp->nlp_flag & NLP_LOGO_SND) {
c9f8735b 1489 return ndlp->nlp_state;
dea3101e 1490 }
1491
1492 if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) {
1493 spin_lock_irq(phba->host->host_lock);
fdcebe28 1494 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
dea3101e 1495 spin_unlock_irq(phba->host->host_lock);
c9f8735b 1496 return ndlp->nlp_state;
dea3101e 1497 }
1498
1499 /* send PLOGI immediately, move to PLOGI issue state */
1500 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
488d1469
JS		 1501 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1502 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1503 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
1504 lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
dea3101e 1505 }
488d1469 1506
c9f8735b 1507 return ndlp->nlp_state;
dea3101e 1508}
1509
1510static uint32_t
1511lpfc_rcv_prli_npr_node(struct lpfc_hba * phba,
1512 struct lpfc_nodelist * ndlp, void *arg,
1513 uint32_t evt)
1514{
1515 struct lpfc_iocbq *cmdiocb;
1516 struct ls_rjt stat;
1517
1518 cmdiocb = (struct lpfc_iocbq *) arg;
1519
1520 memset(&stat, 0, sizeof (struct ls_rjt));
1521 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1522 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1523 lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
1524
1525 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1526 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
c9f8735b
JW		 1527 spin_lock_irq(phba->host->host_lock);
1528 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1529 spin_unlock_irq(phba->host->host_lock);
5024ab17 1530 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
dea3101e 1531 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1532 lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1533 lpfc_issue_els_adisc(phba, ndlp, 0);
1534 } else {
5024ab17 1535 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
dea3101e 1536 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1537 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
488d1469 1538 lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
dea3101e 1539 }
488d1469 1540
dea3101e 1541 }
c9f8735b 1542 return ndlp->nlp_state;
dea3101e 1543}
1544
1545static uint32_t
1546lpfc_rcv_logo_npr_node(struct lpfc_hba * phba,
1547 struct lpfc_nodelist * ndlp, void *arg,
1548 uint32_t evt)
1549{
1550 struct lpfc_iocbq *cmdiocb;
1551
1552 cmdiocb = (struct lpfc_iocbq *) arg;
1553
1554 lpfc_rcv_logo(phba, ndlp, cmdiocb);
c9f8735b 1555 return ndlp->nlp_state;
dea3101e 1556}
1557
1558static uint32_t
1559lpfc_rcv_padisc_npr_node(struct lpfc_hba * phba,
1560 struct lpfc_nodelist * ndlp, void *arg,
1561 uint32_t evt)
1562{
1563 struct lpfc_iocbq *cmdiocb;
1564
1565 cmdiocb = (struct lpfc_iocbq *) arg;
1566
1567 lpfc_rcv_padisc(phba, ndlp, cmdiocb);
1568
1569 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1570 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
5024ab17 1571 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
dea3101e 1572 ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
1573 lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST);
1574 lpfc_issue_els_adisc(phba, ndlp, 0);
1575 } else {
5024ab17 1576 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
dea3101e 1577 ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
1578 lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
488d1469 1579 lpfc_issue_els_plogi(phba, ndlp->nlp_DID, 0);
dea3101e 1580 }
1581 }
c9f8735b 1582 return ndlp->nlp_state;
dea3101e 1583}
1584
1585static uint32_t
1586lpfc_rcv_prlo_npr_node(struct lpfc_hba * phba,
1587 struct lpfc_nodelist * ndlp, void *arg,
1588 uint32_t evt)
1589{
1590 struct lpfc_iocbq *cmdiocb;
1591
1592 cmdiocb = (struct lpfc_iocbq *) arg;
1593
c9f8735b
JW		 1594 spin_lock_irq(phba->host->host_lock);
1595 ndlp->nlp_flag |= NLP_LOGO_ACC;
1596 spin_unlock_irq(phba->host->host_lock);
1597
dea3101e 1598 lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
1599
c9f8735b
JW		 1600 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1601 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
1602 spin_lock_irq(phba->host->host_lock);
1603 ndlp->nlp_flag |= NLP_DELAY_TMO;
1604 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1605 spin_unlock_irq(phba->host->host_lock);
5024ab17 1606 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b
JW		 1607 } else {
1608 spin_lock_irq(phba->host->host_lock);
1609 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1610 spin_unlock_irq(phba->host->host_lock);
dea3101e 1611 }
c9f8735b
JW		 1612 return ndlp->nlp_state;
1613}
dea3101e 1614
c9f8735b
JW		 1615static uint32_t
1616lpfc_cmpl_plogi_npr_node(struct lpfc_hba * phba,
1617 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1618{
1619 struct lpfc_iocbq *cmdiocb, *rspiocb;
1620
1621 cmdiocb = (struct lpfc_iocbq *) arg;
1622 rspiocb = cmdiocb->context_un.rsp_iocb;
1623 return ndlp->nlp_state;
1624}
1625
1626static uint32_t
1627lpfc_cmpl_prli_npr_node(struct lpfc_hba * phba,
1628 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1629{
1630 struct lpfc_iocbq *cmdiocb, *rspiocb;
1631
1632 cmdiocb = (struct lpfc_iocbq *) arg;
1633 rspiocb = cmdiocb->context_un.rsp_iocb;
1634 return ndlp->nlp_state;
dea3101e 1635}
1636
1637static uint32_t
1638lpfc_cmpl_logo_npr_node(struct lpfc_hba * phba,
1639 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1640{
1641 lpfc_unreg_rpi(phba, ndlp);
1642 /* This routine does nothing, just return the current state */
c9f8735b
JW		 1643 return ndlp->nlp_state;
1644}
1645
1646static uint32_t
1647lpfc_cmpl_adisc_npr_node(struct lpfc_hba * phba,
1648 struct lpfc_nodelist * ndlp, void *arg,
1649 uint32_t evt)
1650{
1651 struct lpfc_iocbq *cmdiocb, *rspiocb;
1652
1653 cmdiocb = (struct lpfc_iocbq *) arg;
1654 rspiocb = cmdiocb->context_un.rsp_iocb;
1655 return ndlp->nlp_state;
dea3101e 1656}
1657
1658static uint32_t
1659lpfc_cmpl_reglogin_npr_node(struct lpfc_hba * phba,
1660 struct lpfc_nodelist * ndlp, void *arg,
1661 uint32_t evt)
1662{
1663 LPFC_MBOXQ_t *pmb;
1664 MAILBOX_t *mb;
1665
1666 pmb = (LPFC_MBOXQ_t *) arg;
1667 mb = &pmb->mb;
1668
c9f8735b
JW		 1669 if (!mb->mbxStatus)
1670 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1671
c9f8735b 1672 return ndlp->nlp_state;
dea3101e 1673}
1674
1675static uint32_t
1676lpfc_device_rm_npr_node(struct lpfc_hba * phba,
1677 struct lpfc_nodelist * ndlp, void *arg,
1678 uint32_t evt)
1679{
1680 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
c9f8735b 1681 return NLP_STE_FREED_NODE;
dea3101e 1682}
1683
1684static uint32_t
1685lpfc_device_recov_npr_node(struct lpfc_hba * phba,
1686 struct lpfc_nodelist * ndlp, void *arg,
1687 uint32_t evt)
1688{
1689 spin_lock_irq(phba->host->host_lock);
1690 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
fdcebe28 1691 spin_unlock_irq(phba->host->host_lock);
6ad42535 1692 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
fdcebe28 1693 lpfc_cancel_retry_delay_tmo(phba, ndlp);
6ad42535 1694 }
c9f8735b 1695 return ndlp->nlp_state;
dea3101e 1696}
1697
1698
1699/* This next section defines the NPort Discovery State Machine */
1700
1701/* There are 4 different double linked lists nodelist entries can reside on.
1702 * The plogi list and adisc list are used when Link Up discovery or RSCN
1703 * processing is needed. Each list holds the nodes that we will send PLOGI
1704 * or ADISC on. These lists will keep track of what nodes will be effected
1705 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1706 * The unmapped_list will contain all nodes that we have successfully logged
1707 * into at the Fibre Channel level. The mapped_list will contain all nodes
1708 * that are mapped FCP targets.
1709 */
1710/*
1711 * The bind list is a list of undiscovered (potentially non-existent) nodes
1712 * that we have saved binding information on. This information is used when
1713 * nodes transition from the unmapped to the mapped list.
1714 */
1715/* For UNUSED_NODE state, the node has just been allocated .
1716 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1717 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1718 * and put on the unmapped list. For ADISC processing, the node is taken off
1719 * the ADISC list and placed on either the mapped or unmapped list (depending
1720 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1721 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1722 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1723 * node, the node is taken off the unmapped list. The binding list is checked
1724 * for a valid binding, or a binding is automatically assigned. If binding
1725 * assignment is unsuccessful, the node is left on the unmapped list. If
1726 * binding assignment is successful, the associated binding list entry (if
1727 * any) is removed, and the node is placed on the mapped list.
1728 */
1729/*
1730 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
1731 * lists will receive a DEVICE_RECOVERY event. If the linkdown or nodev timers
1732 * expire, all effected nodes will receive a DEVICE_RM event.
1733 */
1734/*
1735 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
1736 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
1737 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
1738 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
1739 * we will first process the ADISC list. 32 entries are processed initially and
1740 * ADISC is initited for each one. Completions / Events for each node are
1741 * funnelled thru the state machine. As each node finishes ADISC processing, it
1742 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
1743 * waiting, and the ADISC list count is identically 0, then we are done. For
1744 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
1745 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
1746 * list. 32 entries are processed initially and PLOGI is initited for each one.
1747 * Completions / Events for each node are funnelled thru the state machine. As
1748 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
1749 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
1750 * indentically 0, then we are done. We have now completed discovery / RSCN
1751 * handling. Upon completion, ALL nodes should be on either the mapped or
1752 * unmapped lists.
1753 */
1754
1755static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
1756 (struct lpfc_hba *, struct lpfc_nodelist *, void *, uint32_t) = {
1757 /* Action routine Event Current State */
1758 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
1759 lpfc_rcv_els_unused_node, /* RCV_PRLI */
1760 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
1761 lpfc_rcv_els_unused_node, /* RCV_ADISC */
1762 lpfc_rcv_els_unused_node, /* RCV_PDISC */
1763 lpfc_rcv_els_unused_node, /* RCV_PRLO */
1764 lpfc_disc_illegal, /* CMPL_PLOGI */
1765 lpfc_disc_illegal, /* CMPL_PRLI */
1766 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
1767 lpfc_disc_illegal, /* CMPL_ADISC */
1768 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1769 lpfc_device_rm_unused_node, /* DEVICE_RM */
1770 lpfc_disc_illegal, /* DEVICE_RECOVERY */
1771
1772 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
1773 lpfc_rcv_els_plogi_issue, /* RCV_PRLI */
c9f8735b 1774 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
dea3101e 1775 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
1776 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
1777 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
1778 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
1779 lpfc_disc_illegal, /* CMPL_PRLI */
1780 lpfc_disc_illegal, /* CMPL_LOGO */
1781 lpfc_disc_illegal, /* CMPL_ADISC */
1782 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1783 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
1784 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
1785
1786 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
1787 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
1788 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
1789 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
1790 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
1791 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
1792 lpfc_disc_illegal, /* CMPL_PLOGI */
1793 lpfc_disc_illegal, /* CMPL_PRLI */
1794 lpfc_disc_illegal, /* CMPL_LOGO */
1795 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
1796 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1797 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
1798 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
1799
1800 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
1801 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
1802 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
1803 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
1804 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
1805 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
1806 lpfc_disc_illegal, /* CMPL_PLOGI */
1807 lpfc_disc_illegal, /* CMPL_PRLI */
1808 lpfc_disc_illegal, /* CMPL_LOGO */
1809 lpfc_disc_illegal, /* CMPL_ADISC */
1810 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
1811 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
1812 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
1813
1814 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
1815 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
1816 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
1817 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
1818 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
1819 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
1820 lpfc_disc_illegal, /* CMPL_PLOGI */
1821 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
1822 lpfc_disc_illegal, /* CMPL_LOGO */
1823 lpfc_disc_illegal, /* CMPL_ADISC */
1824 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1825 lpfc_device_rm_prli_issue, /* DEVICE_RM */
1826 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
1827
1828 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
1829 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
1830 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
1831 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
1832 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
1833 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
1834 lpfc_disc_illegal, /* CMPL_PLOGI */
1835 lpfc_disc_illegal, /* CMPL_PRLI */
1836 lpfc_disc_illegal, /* CMPL_LOGO */
1837 lpfc_disc_illegal, /* CMPL_ADISC */
1838 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1839 lpfc_disc_illegal, /* DEVICE_RM */
1840 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
1841
1842 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
1843 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
1844 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
1845 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
1846 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
1847 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
1848 lpfc_disc_illegal, /* CMPL_PLOGI */
1849 lpfc_disc_illegal, /* CMPL_PRLI */
1850 lpfc_disc_illegal, /* CMPL_LOGO */
1851 lpfc_disc_illegal, /* CMPL_ADISC */
1852 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
1853 lpfc_disc_illegal, /* DEVICE_RM */
1854 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
1855
1856 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
1857 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
1858 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
1859 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
1860 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
1861 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
c9f8735b
JW		 1862 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
1863 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
dea3101e 1864 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
c9f8735b 1865 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
dea3101e 1866 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
1867 lpfc_device_rm_npr_node, /* DEVICE_RM */
1868 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
1869};
1870
1871int
1872lpfc_disc_state_machine(struct lpfc_hba * phba,
1873 struct lpfc_nodelist * ndlp, void *arg, uint32_t evt)
1874{
1875 uint32_t cur_state, rc;
1876 uint32_t(*func) (struct lpfc_hba *, struct lpfc_nodelist *, void *,
1877 uint32_t);
1878
1879 ndlp->nlp_disc_refcnt++;
1880 cur_state = ndlp->nlp_state;
1881
1882 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
1883 lpfc_printf_log(phba,
1884 KERN_INFO,
1885 LOG_DISCOVERY,
1886 "%d:0211 DSM in event x%x on NPort x%x in state %d "
1887 "Data: x%x\n",
1888 phba->brd_no,
1889 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
1890
1891 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
1892 rc = (func) (phba, ndlp, arg, evt);
1893
1894 /* DSM out state <rc> on NPort <nlp_DID> */
1895 lpfc_printf_log(phba,
1896 KERN_INFO,
1897 LOG_DISCOVERY,
1898 "%d:0212 DSM out state %d on NPort x%x Data: x%x\n",
1899 phba->brd_no,
1900 rc, ndlp->nlp_DID, ndlp->nlp_flag);
1901
1902 ndlp->nlp_disc_refcnt--;
1903
1904 /* Check to see if ndlp removal is deferred */
1905 if ((ndlp->nlp_disc_refcnt == 0)
1906 && (ndlp->nlp_flag & NLP_DELAY_REMOVE)) {
1907 spin_lock_irq(phba->host->host_lock);
1908 ndlp->nlp_flag &= ~NLP_DELAY_REMOVE;
1909 spin_unlock_irq(phba->host->host_lock);
1910 lpfc_nlp_remove(phba, ndlp);
c9f8735b 1911 return NLP_STE_FREED_NODE;
dea3101e 1912 }
1913 if (rc == NLP_STE_FREED_NODE)
c9f8735b 1914 return NLP_STE_FREED_NODE;
c9f8735b 1915 return rc;
dea3101e 1916}
Linux kernel - Deliverables
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