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[SCSI] lpfc 8.3.39: Remove driver dependency on HZ
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
CommitLineData
92d7f7b0 1 /*******************************************************************
dea3101e 2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
d4379acd 4 * Copyright (C) 2004-2012 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>
5a0e3ad6 24#include <linux/slab.h>
dea3101e 25#include <linux/interrupt.h>
26
91886523 27#include <scsi/scsi.h>
dea3101e 28#include <scsi/scsi_device.h>
29#include <scsi/scsi_host.h>
30#include <scsi/scsi_transport_fc.h>
31
da0436e9 32#include "lpfc_hw4.h"
dea3101e 33#include "lpfc_hw.h"
34#include "lpfc_sli.h"
da0436e9 35#include "lpfc_sli4.h"
ea2151b4 36#include "lpfc_nl.h"
dea3101e 37#include "lpfc_disc.h"
38#include "lpfc_scsi.h"
39#include "lpfc.h"
40#include "lpfc_logmsg.h"
41#include "lpfc_crtn.h"
92d7f7b0 42#include "lpfc_vport.h"
858c9f6c 43#include "lpfc_debugfs.h"
dea3101e 44
45
46/* Called to verify a rcv'ed ADISC was intended for us. */
47static int
2e0fef85
JS		 48lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
49 struct lpfc_name *nn, struct lpfc_name *pn)
dea3101e 50{
6b5151fd
JS		 51 /* First, we MUST have a RPI registered */
52 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
53 return 0;
54
dea3101e 55 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
56 * table entry for that node.
57 */
2e0fef85 58 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)))
c9f8735b 59 return 0;
dea3101e 60
2e0fef85 61 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)))
c9f8735b 62 return 0;
dea3101e 63
64 /* we match, return success */
c9f8735b 65 return 1;
dea3101e 66}
67
dea3101e 68int
2e0fef85 69lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
341af102 70 struct serv_parm *sp, uint32_t class, int flogi)
dea3101e 71{
2e0fef85 72 volatile struct serv_parm *hsp = &vport->fc_sparam;
2fb70f79
JSEC		 73 uint16_t hsp_value, ssp_value = 0;
74
75 /*
76 * The receive data field size and buffer-to-buffer receive data field
77 * size entries are 16 bits but are represented as two 8-bit fields in
78 * the driver data structure to account for rsvd bits and other control
79 * bits. Reconstruct and compare the fields as a 16-bit values before
80 * correcting the byte values.
81 */
dea3101e 82 if (sp->cls1.classValid) {
341af102
JS		 83 if (!flogi) {
84 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) |
85 hsp->cls1.rcvDataSizeLsb);
86 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) |
87 sp->cls1.rcvDataSizeLsb);
88 if (!ssp_value)
89 goto bad_service_param;
90 if (ssp_value > hsp_value) {
91 sp->cls1.rcvDataSizeLsb =
92 hsp->cls1.rcvDataSizeLsb;
93 sp->cls1.rcvDataSizeMsb =
94 hsp->cls1.rcvDataSizeMsb;
95 }
2fb70f79 96 }
341af102 97 } else if (class == CLASS1)
92d7f7b0 98 goto bad_service_param;
dea3101e 99 if (sp->cls2.classValid) {
341af102
JS		 100 if (!flogi) {
101 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) |
102 hsp->cls2.rcvDataSizeLsb);
103 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) |
104 sp->cls2.rcvDataSizeLsb);
105 if (!ssp_value)
106 goto bad_service_param;
107 if (ssp_value > hsp_value) {
108 sp->cls2.rcvDataSizeLsb =
109 hsp->cls2.rcvDataSizeLsb;
110 sp->cls2.rcvDataSizeMsb =
111 hsp->cls2.rcvDataSizeMsb;
112 }
2fb70f79 113 }
341af102 114 } else if (class == CLASS2)
92d7f7b0 115 goto bad_service_param;
dea3101e 116 if (sp->cls3.classValid) {
341af102
JS		 117 if (!flogi) {
118 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) |
119 hsp->cls3.rcvDataSizeLsb);
120 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) |
121 sp->cls3.rcvDataSizeLsb);
122 if (!ssp_value)
123 goto bad_service_param;
124 if (ssp_value > hsp_value) {
125 sp->cls3.rcvDataSizeLsb =
126 hsp->cls3.rcvDataSizeLsb;
127 sp->cls3.rcvDataSizeMsb =
128 hsp->cls3.rcvDataSizeMsb;
129 }
2fb70f79 130 }
341af102 131 } else if (class == CLASS3)
92d7f7b0 132 goto bad_service_param;
dea3101e 133
2fb70f79
JSEC		 134 /*
135 * Preserve the upper four bits of the MSB from the PLOGI response.
136 * These bits contain the Buffer-to-Buffer State Change Number
137 * from the target and need to be passed to the FW.
138 */
139 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
140 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
141 if (ssp_value > hsp_value) {
dea3101e 142 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
2fb70f79
JSEC		 143 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
144 (hsp->cmn.bbRcvSizeMsb & 0x0F);
145 }
dea3101e 146
dea3101e 147 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
148 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
2fb70f79 149 return 1;
92d7f7b0 150bad_service_param:
e8b62011
JS		 151 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
152 "0207 Device %x "
153 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
154 "invalid service parameters. Ignoring device.\n",
155 ndlp->nlp_DID,
156 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
157 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
158 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
159 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
92d7f7b0 160 return 0;
dea3101e 161}
162
163static void *
2e0fef85 164lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
92d7f7b0 165 struct lpfc_iocbq *rspiocb)
dea3101e 166{
167 struct lpfc_dmabuf *pcmd, *prsp;
168 uint32_t *lp;
169 void *ptr = NULL;
170 IOCB_t *irsp;
171
172 irsp = &rspiocb->iocb;
173 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
174
175 /* For lpfc_els_abort, context2 could be zero'ed to delay
176 * freeing associated memory till after ABTS completes.
177 */
178 if (pcmd) {
179 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
180 list);
181 if (prsp) {
182 lp = (uint32_t *) prsp->virt;
183 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
184 }
2fe165b6 185 } else {
dea3101e 186 /* Force ulpStatus error since we are returning NULL ptr */
187 if (!(irsp->ulpStatus)) {
188 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
189 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
190 }
191 ptr = NULL;
192 }
c9f8735b 193 return ptr;
dea3101e 194}
195
196
2a9bf3d0 197
dea3101e 198/*
199 * Free resources / clean up outstanding I/Os
200 * associated with a LPFC_NODELIST entry. This
201 * routine effectively results in a "software abort".
202 */
203int
2e0fef85 204lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 205{
2534ba75 206 LIST_HEAD(completions);
2a9bf3d0
JS		 207 LIST_HEAD(txcmplq_completions);
208 LIST_HEAD(abort_list);
2e0fef85
JS		 209 struct lpfc_sli *psli = &phba->sli;
210 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
dea3101e 211 struct lpfc_iocbq *iocb, *next_iocb;
dea3101e 212
213 /* Abort outstanding I/O on NPort <nlp_DID> */
e8b62011 214 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
2a9bf3d0 215 "2819 Abort outstanding I/O on NPort x%x "
e8b62011
JS		 216 "Data: x%x x%x x%x\n",
217 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
218 ndlp->nlp_rpi);
92d7f7b0
JS		 219
220 lpfc_fabric_abort_nport(ndlp);
dea3101e 221
dea3101e 222 /* First check the txq */
2e0fef85 223 spin_lock_irq(&phba->hbalock);
2534ba75 224 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
858c9f6c 225 /* Check to see if iocb matches the nport we are looking for */
2534ba75 226 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
858c9f6c 227 /* It matches, so deque and call compl with anp error */
2534ba75 228 list_move_tail(&iocb->list, &completions);
dea3101e 229 }
2534ba75 230 }
dea3101e 231
dea3101e 232 /* Next check the txcmplq */
2a9bf3d0
JS		 233 list_splice_init(&pring->txcmplq, &txcmplq_completions);
234 spin_unlock_irq(&phba->hbalock);
235
236 list_for_each_entry_safe(iocb, next_iocb, &txcmplq_completions, list) {
858c9f6c 237 /* Check to see if iocb matches the nport we are looking for */
2a9bf3d0
JS		 238 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
239 list_add_tail(&iocb->dlist, &abort_list);
07951076 240 }
2a9bf3d0
JS		 241 spin_lock_irq(&phba->hbalock);
242 list_splice(&txcmplq_completions, &pring->txcmplq);
2e0fef85 243 spin_unlock_irq(&phba->hbalock);
dea3101e 244
2a9bf3d0
JS		 245 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) {
246 spin_lock_irq(&phba->hbalock);
247 list_del_init(&iocb->dlist);
248 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
249 spin_unlock_irq(&phba->hbalock);
250 }
251
a257bf90
JS		 252 /* Cancel all the IOCBs from the completions list */
253 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
254 IOERR_SLI_ABORTED);
2534ba75 255
0d2b6b83 256 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
c9f8735b 257 return 0;
dea3101e 258}
259
260static int
2e0fef85 261lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
92d7f7b0 262 struct lpfc_iocbq *cmdiocb)
dea3101e 263{
2e0fef85
JS		 264 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
265 struct lpfc_hba *phba = vport->phba;
dea3101e 266 struct lpfc_dmabuf *pcmd;
267 uint32_t *lp;
268 IOCB_t *icmd;
269 struct serv_parm *sp;
270 LPFC_MBOXQ_t *mbox;
271 struct ls_rjt stat;
272 int rc;
273
274 memset(&stat, 0, sizeof (struct ls_rjt));
695a814e 275 if (vport->port_state <= LPFC_FDISC) {
dea3101e 276 /* Before responding to PLOGI, check for pt2pt mode.
277 * If we are pt2pt, with an outstanding FLOGI, abort
278 * the FLOGI and resend it first.
279 */
2e0fef85 280 if (vport->fc_flag & FC_PT2PT) {
92d7f7b0 281 lpfc_els_abort_flogi(phba);
2e0fef85 282 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
dea3101e 283 /* If the other side is supposed to initiate
284 * the PLOGI anyway, just ACC it now and
285 * move on with discovery.
286 */
287 phba->fc_edtov = FF_DEF_EDTOV;
288 phba->fc_ratov = FF_DEF_RATOV;
289 /* Start discovery - this should just do
290 CLEAR_LA */
2e0fef85 291 lpfc_disc_start(vport);
ed957684 292 } else
2e0fef85 293 lpfc_initial_flogi(vport);
2fe165b6 294 } else {
dea3101e 295 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
296 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2e0fef85 297 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
858c9f6c 298 ndlp, NULL);
dea3101e 299 return 0;
300 }
301 }
302 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
303 lp = (uint32_t *) pcmd->virt;
304 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
a8adb832
JS		 305 if (wwn_to_u64(sp->portName.u.wwn) == 0) {
306 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
307 "0140 PLOGI Reject: invalid nname\n");
308 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
309 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
310 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
311 NULL);
312 return 0;
313 }
314 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
315 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
316 "0141 PLOGI Reject: invalid pname\n");
317 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
318 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
319 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
320 NULL);
321 return 0;
322 }
341af102 323 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) {
dea3101e 324 /* Reject this request because invalid parameters */
325 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
326 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
858c9f6c
JS		 327 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
328 NULL);
c9f8735b 329 return 0;
dea3101e 330 }
331 icmd = &cmdiocb->iocb;
332
333 /* PLOGI chkparm OK */
e8b62011
JS		 334 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
335 "0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
336 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
337 ndlp->nlp_rpi);
dea3101e 338
3de2a653 339 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
dea3101e 340 ndlp->nlp_fcp_info |= CLASS2;
ed957684 341 else
dea3101e 342 ndlp->nlp_fcp_info |= CLASS3;
2e0fef85 343
dea3101e 344 ndlp->nlp_class_sup = 0;
345 if (sp->cls1.classValid)
346 ndlp->nlp_class_sup |= FC_COS_CLASS1;
347 if (sp->cls2.classValid)
348 ndlp->nlp_class_sup |= FC_COS_CLASS2;
349 if (sp->cls3.classValid)
350 ndlp->nlp_class_sup |= FC_COS_CLASS3;
351 if (sp->cls4.classValid)
352 ndlp->nlp_class_sup |= FC_COS_CLASS4;
353 ndlp->nlp_maxframe =
354 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
355
0558056c 356 /* no need to reg_login if we are already in one of these states */
2fe165b6 357 switch (ndlp->nlp_state) {
dea3101e 358 case NLP_STE_NPR_NODE:
359 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
360 break;
361 case NLP_STE_REG_LOGIN_ISSUE:
362 case NLP_STE_PRLI_ISSUE:
363 case NLP_STE_UNMAPPED_NODE:
364 case NLP_STE_MAPPED_NODE:
0558056c
JS		 365 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
366 return 1;
dea3101e 367 }
368
939723a4 369 /* Check for Nport to NPort pt2pt protocol */
92d7f7b0
JS		 370 if ((vport->fc_flag & FC_PT2PT) &&
371 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
939723a4 372
dea3101e 373 /* rcv'ed PLOGI decides what our NPortId will be */
2e0fef85 374 vport->fc_myDID = icmd->un.rcvels.parmRo;
dea3101e 375 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
376 if (mbox == NULL)
377 goto out;
378 lpfc_config_link(phba, mbox);
379 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
ed957684 380 mbox->vport = vport;
0b727fea 381 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
dea3101e 382 if (rc == MBX_NOT_FINISHED) {
92d7f7b0 383 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 384 goto out;
385 }
939723a4
JS		 386 /*
387 * For SLI4, the VFI/VPI are registered AFTER the
388 * Nport with the higher WWPN sends us a PLOGI with
389 * our assigned NPortId.
390 */
391 if (phba->sli_rev == LPFC_SLI_REV4)
392 lpfc_issue_reg_vfi(vport);
dea3101e 393
2e0fef85 394 lpfc_can_disctmo(vport);
dea3101e 395 }
396 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2e0fef85 397 if (!mbox)
dea3101e 398 goto out;
399
6b5151fd
JS		 400 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */
401 if (phba->sli_rev == LPFC_SLI_REV4)
402 lpfc_unreg_rpi(vport, ndlp);
403
6fb120a7 404 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID,
4042629e 405 (uint8_t *) sp, mbox, ndlp->nlp_rpi);
2e0fef85
JS		 406 if (rc) {
407 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 408 goto out;
409 }
410
411 /* ACC PLOGI rsp command needs to execute first,
412 * queue this mbox command to be processed later.
413 */
414 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
329f9bc7
JS		 415 /*
416 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
417 * command issued in lpfc_cmpl_els_acc().
418 */
2e0fef85
JS		 419 mbox->vport = vport;
420 spin_lock_irq(shost->host_lock);
5024ab17 421 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
2e0fef85 422 spin_unlock_irq(shost->host_lock);
dea3101e 423
33ccf8d1
JS		 424 /*
425 * If there is an outstanding PLOGI issued, abort it before
426 * sending ACC rsp for received PLOGI. If pending plogi
427 * is not canceled here, the plogi will be rejected by
428 * remote port and will be retried. On a configuration with
429 * single discovery thread, this will cause a huge delay in
430 * discovery. Also this will cause multiple state machines
431 * running in parallel for this node.
432 */
433 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
434 /* software abort outstanding PLOGI */
07951076 435 lpfc_els_abort(phba, ndlp);
33ccf8d1
JS		 436 }
437
858c9f6c 438 if ((vport->port_type == LPFC_NPIV_PORT &&
3de2a653 439 vport->cfg_restrict_login)) {
858c9f6c
JS		 440
441 /* In order to preserve RPIs, we want to cleanup
442 * the default RPI the firmware created to rcv
443 * this ELS request. The only way to do this is
444 * to register, then unregister the RPI.
445 */
446 spin_lock_irq(shost->host_lock);
447 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
448 spin_unlock_irq(shost->host_lock);
449 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
450 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
0a8a86fa 451 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
858c9f6c 452 ndlp, mbox);
0a8a86fa
JS		 453 if (rc)
454 mempool_free(mbox, phba->mbox_mem_pool);
858c9f6c
JS		 455 return 1;
456 }
0a8a86fa
JS		 457 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox);
458 if (rc)
459 mempool_free(mbox, phba->mbox_mem_pool);
c9f8735b 460 return 1;
dea3101e 461out:
462 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
463 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
858c9f6c 464 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
c9f8735b 465 return 0;
dea3101e 466}
467
6b5151fd
JS		 468/**
469 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine
470 * @phba: pointer to lpfc hba data structure.
471 * @mboxq: pointer to mailbox object
472 *
473 * This routine is invoked to issue a completion to a rcv'ed
474 * ADISC or PDISC after the paused RPI has been resumed.
475 **/
476static void
477lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
478{
479 struct lpfc_vport *vport;
480 struct lpfc_iocbq *elsiocb;
481 struct lpfc_nodelist *ndlp;
482 uint32_t cmd;
483
484 elsiocb = (struct lpfc_iocbq *)mboxq->context1;
485 ndlp = (struct lpfc_nodelist *) mboxq->context2;
486 vport = mboxq->vport;
487 cmd = elsiocb->drvrTimeout;
488
489 if (cmd == ELS_CMD_ADISC) {
490 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp);
491 } else {
492 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb,
493 ndlp, NULL);
494 }
495 kfree(elsiocb);
72859909 496 mempool_free(mboxq, phba->mbox_mem_pool);
6b5151fd
JS		 497}
498
dea3101e 499static int
2e0fef85 500lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e 501 struct lpfc_iocbq *cmdiocb)
502{
2e0fef85 503 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6b5151fd 504 struct lpfc_iocbq *elsiocb;
dea3101e 505 struct lpfc_dmabuf *pcmd;
2e0fef85
JS		 506 struct serv_parm *sp;
507 struct lpfc_name *pnn, *ppn;
dea3101e 508 struct ls_rjt stat;
509 ADISC *ap;
510 IOCB_t *icmd;
511 uint32_t *lp;
512 uint32_t cmd;
513
514 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
515 lp = (uint32_t *) pcmd->virt;
516
517 cmd = *lp++;
518 if (cmd == ELS_CMD_ADISC) {
519 ap = (ADISC *) lp;
520 pnn = (struct lpfc_name *) & ap->nodeName;
521 ppn = (struct lpfc_name *) & ap->portName;
522 } else {
523 sp = (struct serv_parm *) lp;
524 pnn = (struct lpfc_name *) & sp->nodeName;
525 ppn = (struct lpfc_name *) & sp->portName;
526 }
527
528 icmd = &cmdiocb->iocb;
2e0fef85 529 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
6b5151fd
JS		 530
531 /*
532 * As soon as we send ACC, the remote NPort can
533 * start sending us data. Thus, for SLI4 we must
534 * resume the RPI before the ACC goes out.
535 */
536 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
537 elsiocb = kmalloc(sizeof(struct lpfc_iocbq),
538 GFP_KERNEL);
539 if (elsiocb) {
540
541 /* Save info from cmd IOCB used in rsp */
542 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb,
543 sizeof(struct lpfc_iocbq));
544
545 /* Save the ELS cmd */
546 elsiocb->drvrTimeout = cmd;
547
548 lpfc_sli4_resume_rpi(ndlp,
549 lpfc_mbx_cmpl_resume_rpi, elsiocb);
550 goto out;
551 }
552 }
553
dea3101e 554 if (cmd == ELS_CMD_ADISC) {
2e0fef85 555 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
2fe165b6 556 } else {
6b5151fd
JS		 557 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
558 ndlp, NULL);
dea3101e 559 }
6b5151fd
JS		 560out:
561 /* If we are authenticated, move to the proper state */
562 if (ndlp->nlp_type & NLP_FCP_TARGET)
563 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
564 else
565 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
566
c9f8735b 567 return 1;
dea3101e 568 }
569 /* Reject this request because invalid parameters */
570 stat.un.b.lsRjtRsvd0 = 0;
571 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
572 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
573 stat.un.b.vendorUnique = 0;
858c9f6c 574 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
dea3101e 575
dea3101e 576 /* 1 sec timeout */
256ec0d0 577 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
dea3101e 578
2e0fef85 579 spin_lock_irq(shost->host_lock);
dea3101e 580 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 581 spin_unlock_irq(shost->host_lock);
5024ab17
JW		 582 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
583 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85 584 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
c9f8735b 585 return 0;
dea3101e 586}
587
588static int
2e0fef85
JS		 589lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
590 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
dea3101e 591{
2e0fef85 592 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4b40c59e
JS		 593 struct lpfc_hba *phba = vport->phba;
594 struct lpfc_vport **vports;
595 int i, active_vlink_present = 0 ;
2e0fef85
JS		 596
597 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
dea3101e 598 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
599 * PLOGIs during LOGO storms from a device.
600 */
2e0fef85 601 spin_lock_irq(shost->host_lock);
dea3101e 602 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 603 spin_unlock_irq(shost->host_lock);
82d9a2a2 604 if (els_cmd == ELS_CMD_PRLO)
51ef4c26 605 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
82d9a2a2 606 else
51ef4c26 607 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
4b40c59e
JS		 608 if (ndlp->nlp_DID == Fabric_DID) {
609 if (vport->port_state <= LPFC_FDISC)
610 goto out;
6fb120a7 611 lpfc_linkdown_port(vport);
6fb120a7 612 spin_lock_irq(shost->host_lock);
4b40c59e 613 vport->fc_flag |= FC_VPORT_LOGO_RCVD;
6fb120a7 614 spin_unlock_irq(shost->host_lock);
4b40c59e
JS		 615 vports = lpfc_create_vport_work_array(phba);
616 if (vports) {
617 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
618 i++) {
619 if ((!(vports[i]->fc_flag &
620 FC_VPORT_LOGO_RCVD)) &&
621 (vports[i]->port_state > LPFC_FDISC)) {
622 active_vlink_present = 1;
623 break;
624 }
625 }
626 lpfc_destroy_vport_work_array(phba, vports);
627 }
dea3101e 628
4b40c59e
JS		 629 if (active_vlink_present) {
630 /*
631 * If there are other active VLinks present,
632 * re-instantiate the Vlink using FDISC.
633 */
256ec0d0
JS		 634 mod_timer(&ndlp->nlp_delayfunc,
635 jiffies + msecs_to_jiffies(1000));
4b40c59e
JS		 636 spin_lock_irq(shost->host_lock);
637 ndlp->nlp_flag |= NLP_DELAY_TMO;
638 spin_unlock_irq(shost->host_lock);
639 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
640 vport->port_state = LPFC_FDISC;
641 } else {
642 spin_lock_irq(shost->host_lock);
643 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG;
644 spin_unlock_irq(shost->host_lock);
645 lpfc_retry_pport_discovery(phba);
646 }
6fb120a7
JS		 647 } else if ((!(ndlp->nlp_type & NLP_FABRIC) &&
648 ((ndlp->nlp_type & NLP_FCP_TARGET) ||
649 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
650 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
dea3101e 651 /* Only try to re-login if this is NOT a Fabric Node */
256ec0d0
JS		 652 mod_timer(&ndlp->nlp_delayfunc,
653 jiffies + msecs_to_jiffies(1000 * 1));
2e0fef85 654 spin_lock_irq(shost->host_lock);
dea3101e 655 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 656 spin_unlock_irq(shost->host_lock);
dea3101e 657
5024ab17 658 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b 659 }
4b40c59e 660out:
87af33fe
JS		 661 ndlp->nlp_prev_state = ndlp->nlp_state;
662 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 663
2e0fef85 664 spin_lock_irq(shost->host_lock);
dea3101e 665 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 666 spin_unlock_irq(shost->host_lock);
dea3101e 667 /* The driver has to wait until the ACC completes before it continues
668 * processing the LOGO. The action will resume in
669 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
670 * unreg_login, the driver waits so the ACC does not get aborted.
671 */
c9f8735b 672 return 0;
dea3101e 673}
674
675static void
2e0fef85
JS		 676lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
677 struct lpfc_iocbq *cmdiocb)
dea3101e 678{
679 struct lpfc_dmabuf *pcmd;
680 uint32_t *lp;
681 PRLI *npr;
682 struct fc_rport *rport = ndlp->rport;
683 u32 roles;
684
685 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
686 lp = (uint32_t *) pcmd->virt;
687 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
688
689 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
690 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
92d7f7b0 691 if (npr->prliType == PRLI_FCP_TYPE) {
dea3101e 692 if (npr->initiatorFunc)
693 ndlp->nlp_type |= NLP_FCP_INITIATOR;
694 if (npr->targetFunc)
695 ndlp->nlp_type |= NLP_FCP_TARGET;
696 if (npr->Retry)
697 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
698 }
699 if (rport) {
700 /* We need to update the rport role values */
701 roles = FC_RPORT_ROLE_UNKNOWN;
702 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
703 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
704 if (ndlp->nlp_type & NLP_FCP_TARGET)
705 roles |= FC_RPORT_ROLE_FCP_TARGET;
858c9f6c
JS		 706
707 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
708 "rport rolechg: role:x%x did:x%x flg:x%x",
709 roles, ndlp->nlp_DID, ndlp->nlp_flag);
710
dea3101e 711 fc_remote_port_rolechg(rport, roles);
712 }
713}
714
715static uint32_t
2e0fef85 716lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 717{
2e0fef85 718 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 719
4042629e 720 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
51ef4c26
JS		 721 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
722 return 0;
723 }
724
1b32f6aa
JS		 725 if (!(vport->fc_flag & FC_PT2PT)) {
726 /* Check config parameter use-adisc or FCP-2 */
727 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
ffc95493
JS		 728 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) &&
729 (ndlp->nlp_type & NLP_FCP_TARGET))) {
1b32f6aa
JS		 730 spin_lock_irq(shost->host_lock);
731 ndlp->nlp_flag |= NLP_NPR_ADISC;
732 spin_unlock_irq(shost->host_lock);
733 return 1;
734 }
92d7f7b0
JS		 735 }
736 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
737 lpfc_unreg_rpi(vport, ndlp);
738 return 0;
dea3101e 739}
6d368e53 740
78730cfe 741/**
25985edc 742 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd.
78730cfe
JS		 743 * @phba : Pointer to lpfc_hba structure.
744 * @vport: Pointer to lpfc_vport structure.
745 * @rpi : rpi to be release.
746 *
747 * This function will send a unreg_login mailbox command to the firmware
748 * to release a rpi.
749 **/
750void
751lpfc_release_rpi(struct lpfc_hba *phba,
752 struct lpfc_vport *vport,
753 uint16_t rpi)
754{
755 LPFC_MBOXQ_t *pmb;
756 int rc;
757
758 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
759 GFP_KERNEL);
760 if (!pmb)
761 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
762 "2796 mailbox memory allocation failed \n");
763 else {
764 lpfc_unreg_login(phba, vport->vpi, rpi, pmb);
765 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
766 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
767 if (rc == MBX_NOT_FINISHED)
768 mempool_free(pmb, phba->mbox_mem_pool);
769 }
770}
dea3101e 771
772static uint32_t
2e0fef85
JS		 773lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
774 void *arg, uint32_t evt)
dea3101e 775{
78730cfe
JS		 776 struct lpfc_hba *phba;
777 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
778 MAILBOX_t *mb;
779 uint16_t rpi;
780
781 phba = vport->phba;
782 /* Release the RPI if reglogin completing */
783 if (!(phba->pport->load_flag & FC_UNLOADING) &&
784 (evt == NLP_EVT_CMPL_REG_LOGIN) &&
785 (!pmb->u.mb.mbxStatus)) {
786 mb = &pmb->u.mb;
787 rpi = pmb->u.mb.un.varWords[0];
788 lpfc_release_rpi(phba, vport, rpi);
789 }
e8b62011 790 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
e47c9093 791 "0271 Illegal State Transition: node x%x "
e8b62011
JS		 792 "event x%x, state x%x Data: x%x x%x\n",
793 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
794 ndlp->nlp_flag);
c9f8735b 795 return ndlp->nlp_state;
dea3101e 796}
797
87af33fe
JS		 798static uint32_t
799lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
800 void *arg, uint32_t evt)
801{
802 /* This transition is only legal if we previously
803 * rcv'ed a PLOGI. Since we don't want 2 discovery threads
804 * working on the same NPortID, do nothing for this thread
805 * to stop it.
806 */
807 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
808 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
e47c9093 809 "0272 Illegal State Transition: node x%x "
87af33fe
JS		 810 "event x%x, state x%x Data: x%x x%x\n",
811 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
812 ndlp->nlp_flag);
813 }
814 return ndlp->nlp_state;
815}
816
dea3101e 817/* Start of Discovery State Machine routines */
818
819static uint32_t
2e0fef85
JS		 820lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
821 void *arg, uint32_t evt)
dea3101e 822{
823 struct lpfc_iocbq *cmdiocb;
824
825 cmdiocb = (struct lpfc_iocbq *) arg;
826
2e0fef85 827 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
c9f8735b 828 return ndlp->nlp_state;
dea3101e 829 }
c9f8735b 830 return NLP_STE_FREED_NODE;
dea3101e 831}
832
833static uint32_t
2e0fef85
JS		 834lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
835 void *arg, uint32_t evt)
dea3101e 836{
2e0fef85 837 lpfc_issue_els_logo(vport, ndlp, 0);
c9f8735b 838 return ndlp->nlp_state;
dea3101e 839}
840
841static uint32_t
2e0fef85
JS		 842lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
843 void *arg, uint32_t evt)
dea3101e 844{
2e0fef85
JS		 845 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
846 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 847
2e0fef85 848 spin_lock_irq(shost->host_lock);
dea3101e 849 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 850 spin_unlock_irq(shost->host_lock);
51ef4c26 851 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 852
c9f8735b 853 return ndlp->nlp_state;
dea3101e 854}
855
856static uint32_t
2e0fef85
JS		 857lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
858 void *arg, uint32_t evt)
dea3101e 859{
c9f8735b 860 return NLP_STE_FREED_NODE;
dea3101e 861}
862
863static uint32_t
2e0fef85
JS		 864lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
865 void *arg, uint32_t evt)
dea3101e 866{
c9f8735b 867 return NLP_STE_FREED_NODE;
dea3101e 868}
869
df9e1b59
JS		 870static uint32_t
871lpfc_device_recov_unused_node(struct lpfc_vport *vport,
872 struct lpfc_nodelist *ndlp,
873 void *arg, uint32_t evt)
874{
875 return ndlp->nlp_state;
876}
877
dea3101e 878static uint32_t
2e0fef85 879lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e 880 void *arg, uint32_t evt)
881{
0d2b6b83 882 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 883 struct lpfc_hba *phba = vport->phba;
dea3101e 884 struct lpfc_iocbq *cmdiocb = arg;
2e0fef85
JS		 885 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
886 uint32_t *lp = (uint32_t *) pcmd->virt;
887 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
dea3101e 888 struct ls_rjt stat;
889 int port_cmp;
890
dea3101e 891 memset(&stat, 0, sizeof (struct ls_rjt));
892
893 /* For a PLOGI, we only accept if our portname is less
894 * than the remote portname.
895 */
896 phba->fc_stat.elsLogiCol++;
2e0fef85 897 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
92d7f7b0 898 sizeof(struct lpfc_name));
dea3101e 899
900 if (port_cmp >= 0) {
901 /* Reject this request because the remote node will accept
902 ours */
903 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
904 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
858c9f6c
JS		 905 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
906 NULL);
2fe165b6 907 } else {
0d2b6b83
JS		 908 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) &&
909 (ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
910 (vport->num_disc_nodes)) {
911 spin_lock_irq(shost->host_lock);
912 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
913 spin_unlock_irq(shost->host_lock);
914 /* Check if there are more PLOGIs to be sent */
915 lpfc_more_plogi(vport);
916 if (vport->num_disc_nodes == 0) {
917 spin_lock_irq(shost->host_lock);
918 vport->fc_flag &= ~FC_NDISC_ACTIVE;
919 spin_unlock_irq(shost->host_lock);
920 lpfc_can_disctmo(vport);
921 lpfc_end_rscn(vport);
922 }
923 }
2e0fef85 924 } /* If our portname was less */
dea3101e 925
c9f8735b
JW		 926 return ndlp->nlp_state;
927}
928
92d7f7b0
JS		 929static uint32_t
930lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
931 void *arg, uint32_t evt)
932{
933 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
934 struct ls_rjt stat;
935
936 memset(&stat, 0, sizeof (struct ls_rjt));
937 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
938 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
858c9f6c 939 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
92d7f7b0
JS		 940 return ndlp->nlp_state;
941}
942
c9f8735b 943static uint32_t
2e0fef85
JS		 944lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
945 void *arg, uint32_t evt)
c9f8735b 946{
2e0fef85 947 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
c9f8735b 948
92d7f7b0 949 /* software abort outstanding PLOGI */
2e0fef85 950 lpfc_els_abort(vport->phba, ndlp);
c9f8735b 951
2e0fef85 952 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 953 return ndlp->nlp_state;
dea3101e 954}
955
956static uint32_t
2e0fef85
JS		 957lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
958 void *arg, uint32_t evt)
dea3101e 959{
2e0fef85
JS		 960 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
961 struct lpfc_hba *phba = vport->phba;
962 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 963
964 /* software abort outstanding PLOGI */
07951076 965 lpfc_els_abort(phba, ndlp);
dea3101e 966
967 if (evt == NLP_EVT_RCV_LOGO) {
51ef4c26 968 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2fe165b6 969 } else {
2e0fef85 970 lpfc_issue_els_logo(vport, ndlp, 0);
dea3101e 971 }
972
2e0fef85 973 /* Put ndlp in npr state set plogi timer for 1 sec */
256ec0d0 974 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1));
2e0fef85 975 spin_lock_irq(shost->host_lock);
5024ab17 976 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 977 spin_unlock_irq(shost->host_lock);
5024ab17
JW		 978 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
979 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
2e0fef85 980 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 981
c9f8735b 982 return ndlp->nlp_state;
dea3101e 983}
984
985static uint32_t
2e0fef85
JS		 986lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
987 struct lpfc_nodelist *ndlp,
988 void *arg,
dea3101e 989 uint32_t evt)
990{
2e0fef85 991 struct lpfc_hba *phba = vport->phba;
0ff10d46 992 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 993 struct lpfc_iocbq *cmdiocb, *rspiocb;
14691150 994 struct lpfc_dmabuf *pcmd, *prsp, *mp;
dea3101e 995 uint32_t *lp;
996 IOCB_t *irsp;
997 struct serv_parm *sp;
998 LPFC_MBOXQ_t *mbox;
999
1000 cmdiocb = (struct lpfc_iocbq *) arg;
1001 rspiocb = cmdiocb->context_un.rsp_iocb;
1002
1003 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
5024ab17 1004 /* Recovery from PLOGI collision logic */
c9f8735b 1005 return ndlp->nlp_state;
dea3101e 1006 }
1007
1008 irsp = &rspiocb->iocb;
1009
1010 if (irsp->ulpStatus)
1011 goto out;
1012
1013 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
1014
2e0fef85 1015 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
dea3101e 1016
2e0fef85 1017 lp = (uint32_t *) prsp->virt;
dea3101e 1018 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
58da1ffb
JS		 1019
1020 /* Some switches have FDMI servers returning 0 for WWN */
1021 if ((ndlp->nlp_DID != FDMI_DID) &&
1022 (wwn_to_u64(sp->portName.u.wwn) == 0 ||
1023 wwn_to_u64(sp->nodeName.u.wwn) == 0)) {
a8adb832
JS		 1024 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1025 "0142 PLOGI RSP: Invalid WWN.\n");
1026 goto out;
1027 }
341af102 1028 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0))
dea3101e 1029 goto out;
dea3101e 1030 /* PLOGI chkparm OK */
e8b62011
JS		 1031 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1032 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
1033 ndlp->nlp_DID, ndlp->nlp_state,
1034 ndlp->nlp_flag, ndlp->nlp_rpi);
3de2a653 1035 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
dea3101e 1036 ndlp->nlp_fcp_info |= CLASS2;
2e0fef85 1037 else
dea3101e 1038 ndlp->nlp_fcp_info |= CLASS3;
2e0fef85 1039
dea3101e 1040 ndlp->nlp_class_sup = 0;
1041 if (sp->cls1.classValid)
1042 ndlp->nlp_class_sup |= FC_COS_CLASS1;
1043 if (sp->cls2.classValid)
1044 ndlp->nlp_class_sup |= FC_COS_CLASS2;
1045 if (sp->cls3.classValid)
1046 ndlp->nlp_class_sup |= FC_COS_CLASS3;
1047 if (sp->cls4.classValid)
1048 ndlp->nlp_class_sup |= FC_COS_CLASS4;
1049 ndlp->nlp_maxframe =
2e0fef85 1050 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
dea3101e 1051
2e0fef85 1052 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
92d7f7b0 1053 if (!mbox) {
e8b62011
JS		 1054 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1055 "0133 PLOGI: no memory for reg_login "
92d7f7b0 1056 "Data: x%x x%x x%x x%x\n",
92d7f7b0
JS		 1057 ndlp->nlp_DID, ndlp->nlp_state,
1058 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e 1059 goto out;
92d7f7b0 1060 }
dea3101e 1061
2e0fef85
JS		 1062 lpfc_unreg_rpi(vport, ndlp);
1063
6fb120a7 1064 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID,
4042629e 1065 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) {
2fe165b6 1066 switch (ndlp->nlp_DID) {
dea3101e 1067 case NameServer_DID:
de0c5b32 1068 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
dea3101e 1069 break;
1070 case FDMI_DID:
de0c5b32 1071 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
dea3101e 1072 break;
1073 default:
ffc95493 1074 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
de0c5b32 1075 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
dea3101e 1076 }
329f9bc7 1077 mbox->context2 = lpfc_nlp_get(ndlp);
2e0fef85 1078 mbox->vport = vport;
0b727fea 1079 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
dea3101e 1080 != MBX_NOT_FINISHED) {
2e0fef85
JS		 1081 lpfc_nlp_set_state(vport, ndlp,
1082 NLP_STE_REG_LOGIN_ISSUE);
c9f8735b 1083 return ndlp->nlp_state;
dea3101e 1084 }
ffc95493
JS		 1085 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
1086 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
fa4066b6
JS		 1087 /* decrement node reference count to the failed mbox
1088 * command
1089 */
329f9bc7 1090 lpfc_nlp_put(ndlp);
92d7f7b0 1091 mp = (struct lpfc_dmabuf *) mbox->context1;
14691150
JS		 1092 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1093 kfree(mp);
dea3101e 1094 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 1095
e8b62011
JS		 1096 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1097 "0134 PLOGI: cannot issue reg_login "
1098 "Data: x%x x%x x%x x%x\n",
1099 ndlp->nlp_DID, ndlp->nlp_state,
1100 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e 1101 } else {
1102 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 1103
e8b62011
JS		 1104 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1105 "0135 PLOGI: cannot format reg_login "
1106 "Data: x%x x%x x%x x%x\n",
1107 ndlp->nlp_DID, ndlp->nlp_state,
1108 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e 1109 }
1110
1111
92d7f7b0
JS		 1112out:
1113 if (ndlp->nlp_DID == NameServer_DID) {
1114 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1115 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1116 "0261 Cannot Register NameServer login\n");
92d7f7b0
JS		 1117 }
1118
8b455cf3
JS		 1119 /*
1120 ** In case the node reference counter does not go to zero, ensure that
1121 ** the stale state for the node is not processed.
1122 */
1123
1124 ndlp->nlp_prev_state = ndlp->nlp_state;
1125 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
0ff10d46 1126 spin_lock_irq(shost->host_lock);
a8adb832 1127 ndlp->nlp_flag |= NLP_DEFER_RM;
0ff10d46 1128 spin_unlock_irq(shost->host_lock);
c9f8735b 1129 return NLP_STE_FREED_NODE;
dea3101e 1130}
1131
0ff10d46
JS		 1132static uint32_t
1133lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1134 void *arg, uint32_t evt)
1135{
1136 return ndlp->nlp_state;
1137}
1138
1139static uint32_t
1140lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
1141 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
1142{
78730cfe
JS		 1143 struct lpfc_hba *phba;
1144 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1145 MAILBOX_t *mb = &pmb->u.mb;
1146 uint16_t rpi;
1147
1148 phba = vport->phba;
1149 /* Release the RPI */
1150 if (!(phba->pport->load_flag & FC_UNLOADING) &&
1151 !mb->mbxStatus) {
1152 rpi = pmb->u.mb.un.varWords[0];
1153 lpfc_release_rpi(phba, vport, rpi);
1154 }
0ff10d46
JS		 1155 return ndlp->nlp_state;
1156}
1157
dea3101e 1158static uint32_t
2e0fef85
JS		 1159lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1160 void *arg, uint32_t evt)
dea3101e 1161{
2e0fef85
JS		 1162 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1163
1164 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1165 spin_lock_irq(shost->host_lock);
a0f9b48d 1166 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1167 spin_unlock_irq(shost->host_lock);
a0f9b48d 1168 return ndlp->nlp_state;
2e0fef85 1169 } else {
a0f9b48d 1170 /* software abort outstanding PLOGI */
2e0fef85 1171 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1172
2e0fef85 1173 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1174 return NLP_STE_FREED_NODE;
1175 }
dea3101e 1176}
1177
1178static uint32_t
2e0fef85
JS		 1179lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
1180 struct lpfc_nodelist *ndlp,
1181 void *arg,
1182 uint32_t evt)
dea3101e 1183{
2e0fef85
JS		 1184 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1185 struct lpfc_hba *phba = vport->phba;
1186
92d7f7b0
JS		 1187 /* Don't do anything that will mess up processing of the
1188 * previous RSCN.
1189 */
1190 if (vport->fc_flag & FC_RSCN_DEFERRED)
1191 return ndlp->nlp_state;
1192
dea3101e 1193 /* software abort outstanding PLOGI */
07951076 1194 lpfc_els_abort(phba, ndlp);
dea3101e 1195
5024ab17 1196 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
2e0fef85 1197 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
92d7f7b0 1198 spin_lock_irq(shost->host_lock);
a0f9b48d 1199 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1200 spin_unlock_irq(shost->host_lock);
dea3101e 1201
c9f8735b 1202 return ndlp->nlp_state;
dea3101e 1203}
1204
1205static uint32_t
2e0fef85
JS		 1206lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1207 void *arg, uint32_t evt)
dea3101e 1208{
0d2b6b83 1209 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 1210 struct lpfc_hba *phba = vport->phba;
dea3101e 1211 struct lpfc_iocbq *cmdiocb;
1212
1213 /* software abort outstanding ADISC */
07951076 1214 lpfc_els_abort(phba, ndlp);
dea3101e 1215
1216 cmdiocb = (struct lpfc_iocbq *) arg;
1217
0d2b6b83
JS		 1218 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1219 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1220 spin_lock_irq(shost->host_lock);
1221 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1222 spin_unlock_irq(shost->host_lock);
90160e01 1223 if (vport->num_disc_nodes)
0d2b6b83 1224 lpfc_more_adisc(vport);
0d2b6b83
JS		 1225 }
1226 return ndlp->nlp_state;
1227 }
5024ab17 1228 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1229 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1230 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
dea3101e 1231
c9f8735b 1232 return ndlp->nlp_state;
dea3101e 1233}
1234
1235static uint32_t
2e0fef85
JS		 1236lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1237 void *arg, uint32_t evt)
dea3101e 1238{
2e0fef85 1239 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1240
2e0fef85 1241 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1242 return ndlp->nlp_state;
dea3101e 1243}
1244
1245static uint32_t
2e0fef85
JS		 1246lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1247 void *arg, uint32_t evt)
dea3101e 1248{
2e0fef85 1249 struct lpfc_hba *phba = vport->phba;
dea3101e 1250 struct lpfc_iocbq *cmdiocb;
1251
1252 cmdiocb = (struct lpfc_iocbq *) arg;
1253
1254 /* software abort outstanding ADISC */
07951076 1255 lpfc_els_abort(phba, ndlp);
dea3101e 1256
2e0fef85 1257 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1258 return ndlp->nlp_state;
dea3101e 1259}
1260
1261static uint32_t
2e0fef85
JS		 1262lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
1263 struct lpfc_nodelist *ndlp,
1264 void *arg, uint32_t evt)
dea3101e 1265{
1266 struct lpfc_iocbq *cmdiocb;
1267
1268 cmdiocb = (struct lpfc_iocbq *) arg;
1269
2e0fef85 1270 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1271 return ndlp->nlp_state;
dea3101e 1272}
1273
1274static uint32_t
2e0fef85
JS		 1275lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1276 void *arg, uint32_t evt)
dea3101e 1277{
1278 struct lpfc_iocbq *cmdiocb;
1279
1280 cmdiocb = (struct lpfc_iocbq *) arg;
1281
1282 /* Treat like rcv logo */
2e0fef85 1283 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
c9f8735b 1284 return ndlp->nlp_state;
dea3101e 1285}
1286
1287static uint32_t
2e0fef85
JS		 1288lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1289 struct lpfc_nodelist *ndlp,
1290 void *arg, uint32_t evt)
dea3101e 1291{
2e0fef85
JS		 1292 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1293 struct lpfc_hba *phba = vport->phba;
dea3101e 1294 struct lpfc_iocbq *cmdiocb, *rspiocb;
1295 IOCB_t *irsp;
1296 ADISC *ap;
6fb120a7 1297 int rc;
dea3101e 1298
1299 cmdiocb = (struct lpfc_iocbq *) arg;
1300 rspiocb = cmdiocb->context_un.rsp_iocb;
1301
1302 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1303 irsp = &rspiocb->iocb;
1304
1305 if ((irsp->ulpStatus) ||
92d7f7b0 1306 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
dea3101e 1307 /* 1 sec timeout */
256ec0d0
JS		 1308 mod_timer(&ndlp->nlp_delayfunc,
1309 jiffies + msecs_to_jiffies(1000));
2e0fef85 1310 spin_lock_irq(shost->host_lock);
dea3101e 1311 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1312 spin_unlock_irq(shost->host_lock);
5024ab17 1313 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1314
2e0fef85
JS		 1315 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1316 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
dea3101e 1317
5024ab17 1318 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1319 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1320 lpfc_unreg_rpi(vport, ndlp);
c9f8735b 1321 return ndlp->nlp_state;
dea3101e 1322 }
5024ab17 1323
6fb120a7 1324 if (phba->sli_rev == LPFC_SLI_REV4) {
6b5151fd 1325 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL);
6fb120a7
JS		 1326 if (rc) {
1327 /* Stay in state and retry. */
1328 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1329 return ndlp->nlp_state;
1330 }
1331 }
1332
2501322e 1333 if (ndlp->nlp_type & NLP_FCP_TARGET) {
5024ab17 1334 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85 1335 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
2501322e 1336 } else {
5024ab17 1337 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85 1338 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2501322e 1339 }
6fb120a7 1340
c9f8735b 1341 return ndlp->nlp_state;
dea3101e 1342}
1343
1344static uint32_t
2e0fef85
JS		 1345lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1346 void *arg, uint32_t evt)
dea3101e 1347{
2e0fef85
JS		 1348 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1349
1350 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1351 spin_lock_irq(shost->host_lock);
a0f9b48d 1352 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1353 spin_unlock_irq(shost->host_lock);
a0f9b48d 1354 return ndlp->nlp_state;
2e0fef85 1355 } else {
a0f9b48d 1356 /* software abort outstanding ADISC */
2e0fef85 1357 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1358
2e0fef85 1359 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1360 return NLP_STE_FREED_NODE;
1361 }
dea3101e 1362}
1363
1364static uint32_t
2e0fef85
JS		 1365lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1366 struct lpfc_nodelist *ndlp,
1367 void *arg,
1368 uint32_t evt)
dea3101e 1369{
2e0fef85
JS		 1370 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1371 struct lpfc_hba *phba = vport->phba;
1372
92d7f7b0
JS		 1373 /* Don't do anything that will mess up processing of the
1374 * previous RSCN.
1375 */
1376 if (vport->fc_flag & FC_RSCN_DEFERRED)
1377 return ndlp->nlp_state;
1378
dea3101e 1379 /* software abort outstanding ADISC */
07951076 1380 lpfc_els_abort(phba, ndlp);
dea3101e 1381
5024ab17 1382 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1383 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1384 spin_lock_irq(shost->host_lock);
a0f9b48d 1385 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1386 spin_unlock_irq(shost->host_lock);
92d7f7b0 1387 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1388 return ndlp->nlp_state;
dea3101e 1389}
1390
1391static uint32_t
2e0fef85
JS		 1392lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1393 struct lpfc_nodelist *ndlp,
1394 void *arg,
dea3101e 1395 uint32_t evt)
1396{
2e0fef85 1397 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1398
2e0fef85 1399 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1400 return ndlp->nlp_state;
dea3101e 1401}
1402
1403static uint32_t
2e0fef85
JS		 1404lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1405 struct lpfc_nodelist *ndlp,
1406 void *arg,
dea3101e 1407 uint32_t evt)
1408{
2e0fef85 1409 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1410
2e0fef85 1411 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1412 return ndlp->nlp_state;
dea3101e 1413}
1414
1415static uint32_t
2e0fef85
JS		 1416lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1417 struct lpfc_nodelist *ndlp,
1418 void *arg,
dea3101e 1419 uint32_t evt)
1420{
2e0fef85
JS		 1421 struct lpfc_hba *phba = vport->phba;
1422 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
7054a606
JS		 1423 LPFC_MBOXQ_t *mb;
1424 LPFC_MBOXQ_t *nextmb;
1425 struct lpfc_dmabuf *mp;
dea3101e 1426
1427 cmdiocb = (struct lpfc_iocbq *) arg;
1428
7054a606
JS		 1429 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1430 if ((mb = phba->sli.mbox_active)) {
04c68496 1431 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
7054a606 1432 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
92d7f7b0 1433 lpfc_nlp_put(ndlp);
7054a606
JS		 1434 mb->context2 = NULL;
1435 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1436 }
1437 }
1438
2e0fef85 1439 spin_lock_irq(&phba->hbalock);
7054a606 1440 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
04c68496 1441 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
7054a606
JS		 1442 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1443 mp = (struct lpfc_dmabuf *) (mb->context1);
1444 if (mp) {
98c9ea5c 1445 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
7054a606
JS		 1446 kfree(mp);
1447 }
92d7f7b0 1448 lpfc_nlp_put(ndlp);
7054a606 1449 list_del(&mb->list);
5ffc266e 1450 phba->sli.mboxq_cnt--;
7054a606
JS		 1451 mempool_free(mb, phba->mbox_mem_pool);
1452 }
1453 }
2e0fef85 1454 spin_unlock_irq(&phba->hbalock);
7054a606 1455
2e0fef85 1456 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1457 return ndlp->nlp_state;
dea3101e 1458}
1459
1460static uint32_t
2e0fef85
JS		 1461lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1462 struct lpfc_nodelist *ndlp,
1463 void *arg,
dea3101e 1464 uint32_t evt)
1465{
2e0fef85 1466 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1467
2e0fef85 1468 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1469 return ndlp->nlp_state;
dea3101e 1470}
1471
1472static uint32_t
2e0fef85
JS		 1473lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1474 struct lpfc_nodelist *ndlp,
1475 void *arg,
dea3101e 1476 uint32_t evt)
1477{
1478 struct lpfc_iocbq *cmdiocb;
1479
1480 cmdiocb = (struct lpfc_iocbq *) arg;
51ef4c26 1481 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1482 return ndlp->nlp_state;
dea3101e 1483}
1484
1485static uint32_t
2e0fef85
JS		 1486lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1487 struct lpfc_nodelist *ndlp,
1488 void *arg,
1489 uint32_t evt)
dea3101e 1490{
2e0fef85 1491 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 1492 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
04c68496 1493 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85 1494 uint32_t did = mb->un.varWords[1];
dea3101e 1495
dea3101e 1496 if (mb->mbxStatus) {
1497 /* RegLogin failed */
e8b62011 1498 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
6d368e53
JS		 1499 "0246 RegLogin failed Data: x%x x%x x%x x%x "
1500 "x%x\n",
1501 did, mb->mbxStatus, vport->port_state,
1502 mb->un.varRegLogin.vpi,
1503 mb->un.varRegLogin.rpi);
d0e56dad
JS		 1504 /*
1505 * If RegLogin failed due to lack of HBA resources do not
1506 * retry discovery.
1507 */
1508 if (mb->mbxStatus == MBXERR_RPI_FULL) {
87af33fe
JS		 1509 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1510 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
d0e56dad
JS		 1511 return ndlp->nlp_state;
1512 }
1513
2e0fef85 1514 /* Put ndlp in npr state set plogi timer for 1 sec */
256ec0d0
JS		 1515 mod_timer(&ndlp->nlp_delayfunc,
1516 jiffies + msecs_to_jiffies(1000 * 1));
2e0fef85 1517 spin_lock_irq(shost->host_lock);
dea3101e 1518 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1519 spin_unlock_irq(shost->host_lock);
5024ab17 1520 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1521
2e0fef85 1522 lpfc_issue_els_logo(vport, ndlp, 0);
5024ab17 1523 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85 1524 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
c9f8735b 1525 return ndlp->nlp_state;
dea3101e 1526 }
1527
6d368e53
JS		 1528 /* SLI4 ports have preallocated logical rpis. */
1529 if (vport->phba->sli_rev < LPFC_SLI_REV4)
1530 ndlp->nlp_rpi = mb->un.varWords[0];
1531
4042629e 1532 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
dea3101e 1533
1534 /* Only if we are not a fabric nport do we issue PRLI */
1535 if (!(ndlp->nlp_type & NLP_FABRIC)) {
5024ab17 1536 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85
JS		 1537 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1538 lpfc_issue_els_prli(vport, ndlp, 0);
dea3101e 1539 } else {
5024ab17 1540 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85 1541 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1542 }
c9f8735b 1543 return ndlp->nlp_state;
dea3101e 1544}
1545
1546static uint32_t
2e0fef85
JS		 1547lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1548 struct lpfc_nodelist *ndlp,
1549 void *arg,
dea3101e 1550 uint32_t evt)
1551{
2e0fef85
JS		 1552 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1553
1554 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1555 spin_lock_irq(shost->host_lock);
a0f9b48d 1556 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1557 spin_unlock_irq(shost->host_lock);
a0f9b48d 1558 return ndlp->nlp_state;
2e0fef85
JS		 1559 } else {
1560 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1561 return NLP_STE_FREED_NODE;
1562 }
dea3101e 1563}
1564
1565static uint32_t
2e0fef85
JS		 1566lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1567 struct lpfc_nodelist *ndlp,
1568 void *arg,
1569 uint32_t evt)
dea3101e 1570{
2e0fef85
JS		 1571 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1572
92d7f7b0
JS		 1573 /* Don't do anything that will mess up processing of the
1574 * previous RSCN.
1575 */
1576 if (vport->fc_flag & FC_RSCN_DEFERRED)
1577 return ndlp->nlp_state;
1578
5024ab17 1579 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85
JS		 1580 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1581 spin_lock_irq(shost->host_lock);
ffc95493 1582 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL;
a0f9b48d 1583 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1584 spin_unlock_irq(shost->host_lock);
92d7f7b0 1585 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1586 return ndlp->nlp_state;
dea3101e 1587}
1588
1589static uint32_t
2e0fef85
JS		 1590lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1591 void *arg, uint32_t evt)
dea3101e 1592{
1593 struct lpfc_iocbq *cmdiocb;
1594
1595 cmdiocb = (struct lpfc_iocbq *) arg;
1596
2e0fef85 1597 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1598 return ndlp->nlp_state;
dea3101e 1599}
1600
1601static uint32_t
2e0fef85
JS		 1602lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1603 void *arg, uint32_t evt)
dea3101e 1604{
2e0fef85 1605 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1606
2e0fef85 1607 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1608 return ndlp->nlp_state;
dea3101e 1609}
1610
1611static uint32_t
2e0fef85
JS		 1612lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1613 void *arg, uint32_t evt)
dea3101e 1614{
2e0fef85 1615 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1616
1617 /* Software abort outstanding PRLI before sending acc */
2e0fef85 1618 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1619
2e0fef85 1620 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1621 return ndlp->nlp_state;
dea3101e 1622}
1623
1624static uint32_t
2e0fef85
JS		 1625lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1626 void *arg, uint32_t evt)
dea3101e 1627{
2e0fef85 1628 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1629
2e0fef85 1630 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1631 return ndlp->nlp_state;
dea3101e 1632}
1633
1634/* This routine is envoked when we rcv a PRLO request from a nport
1635 * we are logged into. We should send back a PRLO rsp setting the
1636 * appropriate bits.
1637 * NEXT STATE = PRLI_ISSUE
1638 */
1639static uint32_t
2e0fef85
JS		 1640lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1641 void *arg, uint32_t evt)
dea3101e 1642{
2e0fef85 1643 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1644
51ef4c26 1645 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1646 return ndlp->nlp_state;
dea3101e 1647}
1648
1649static uint32_t
2e0fef85
JS		 1650lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1651 void *arg, uint32_t evt)
dea3101e 1652{
92d7f7b0 1653 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 1654 struct lpfc_iocbq *cmdiocb, *rspiocb;
2e0fef85 1655 struct lpfc_hba *phba = vport->phba;
dea3101e 1656 IOCB_t *irsp;
1657 PRLI *npr;
1658
1659 cmdiocb = (struct lpfc_iocbq *) arg;
1660 rspiocb = cmdiocb->context_un.rsp_iocb;
1661 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1662
1663 irsp = &rspiocb->iocb;
1664 if (irsp->ulpStatus) {
858c9f6c 1665 if ((vport->port_type == LPFC_NPIV_PORT) &&
3de2a653 1666 vport->cfg_restrict_login) {
858c9f6c
JS		 1667 goto out;
1668 }
5024ab17 1669 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2e0fef85 1670 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
c9f8735b 1671 return ndlp->nlp_state;
dea3101e 1672 }
1673
1674 /* Check out PRLI rsp */
1675 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1676 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1677 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1678 (npr->prliType == PRLI_FCP_TYPE)) {
1679 if (npr->initiatorFunc)
1680 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1681 if (npr->targetFunc)
1682 ndlp->nlp_type |= NLP_FCP_TARGET;
1683 if (npr->Retry)
1684 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1685 }
92d7f7b0
JS		 1686 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1687 (vport->port_type == LPFC_NPIV_PORT) &&
3de2a653 1688 vport->cfg_restrict_login) {
858c9f6c 1689out:
92d7f7b0
JS		 1690 spin_lock_irq(shost->host_lock);
1691 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1692 spin_unlock_irq(shost->host_lock);
1693 lpfc_issue_els_logo(vport, ndlp, 0);
1694
1695 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
87af33fe 1696 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
92d7f7b0
JS		 1697 return ndlp->nlp_state;
1698 }
dea3101e 1699
5024ab17 1700 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
92d7f7b0
JS		 1701 if (ndlp->nlp_type & NLP_FCP_TARGET)
1702 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1703 else
1704 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
c9f8735b 1705 return ndlp->nlp_state;
dea3101e 1706}
1707
1708/*! lpfc_device_rm_prli_issue
92d7f7b0
JS		 1709 *
1710 * \pre
1711 * \post
1712 * \param phba
1713 * \param ndlp
1714 * \param arg
1715 * \param evt
1716 * \return uint32_t
1717 *
1718 * \b Description:
1719 * This routine is envoked when we a request to remove a nport we are in the
1720 * process of PRLIing. We should software abort outstanding prli, unreg
1721 * login, send a logout. We will change node state to UNUSED_NODE, put it
1722 * on plogi list so it can be freed when LOGO completes.
1723 *
1724 */
1725
dea3101e 1726static uint32_t
2e0fef85
JS		 1727lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1728 void *arg, uint32_t evt)
dea3101e 1729{
2e0fef85
JS		 1730 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1731
1732 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1733 spin_lock_irq(shost->host_lock);
a0f9b48d 1734 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1735 spin_unlock_irq(shost->host_lock);
a0f9b48d 1736 return ndlp->nlp_state;
2e0fef85 1737 } else {
a0f9b48d 1738 /* software abort outstanding PLOGI */
2e0fef85 1739 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1740
2e0fef85 1741 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1742 return NLP_STE_FREED_NODE;
1743 }
dea3101e 1744}
1745
1746
1747/*! lpfc_device_recov_prli_issue
92d7f7b0
JS		 1748 *
1749 * \pre
1750 * \post
1751 * \param phba
1752 * \param ndlp
1753 * \param arg
1754 * \param evt
1755 * \return uint32_t
1756 *
1757 * \b Description:
1758 * The routine is envoked when the state of a device is unknown, like
1759 * during a link down. We should remove the nodelist entry from the
1760 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1761 * outstanding PRLI command, then free the node entry.
1762 */
dea3101e 1763static uint32_t
2e0fef85
JS		 1764lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1765 struct lpfc_nodelist *ndlp,
1766 void *arg,
1767 uint32_t evt)
dea3101e 1768{
2e0fef85
JS		 1769 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1770 struct lpfc_hba *phba = vport->phba;
1771
92d7f7b0
JS		 1772 /* Don't do anything that will mess up processing of the
1773 * previous RSCN.
1774 */
1775 if (vport->fc_flag & FC_RSCN_DEFERRED)
1776 return ndlp->nlp_state;
1777
dea3101e 1778 /* software abort outstanding PRLI */
07951076 1779 lpfc_els_abort(phba, ndlp);
dea3101e 1780
5024ab17 1781 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2e0fef85
JS		 1782 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1783 spin_lock_irq(shost->host_lock);
a0f9b48d 1784 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1785 spin_unlock_irq(shost->host_lock);
92d7f7b0 1786 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1787 return ndlp->nlp_state;
dea3101e 1788}
1789
086a345f
JS		 1790static uint32_t
1791lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1792 void *arg, uint32_t evt)
1793{
1794 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1795 struct ls_rjt stat;
1796
1797 memset(&stat, 0, sizeof(struct ls_rjt));
1798 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1799 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1800 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1801 return ndlp->nlp_state;
1802}
1803
1804static uint32_t
1805lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1806 void *arg, uint32_t evt)
1807{
1808 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1809 struct ls_rjt stat;
1810
1811 memset(&stat, 0, sizeof(struct ls_rjt));
1812 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1813 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1814 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1815 return ndlp->nlp_state;
1816}
1817
1818static uint32_t
1819lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1820 void *arg, uint32_t evt)
1821{
1822 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1823 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1824
1825 spin_lock_irq(shost->host_lock);
1826 ndlp->nlp_flag &= NLP_LOGO_ACC;
1827 spin_unlock_irq(shost->host_lock);
1828 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1829 return ndlp->nlp_state;
1830}
1831
1832static uint32_t
1833lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1834 void *arg, uint32_t evt)
1835{
1836 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1837 struct ls_rjt stat;
1838
1839 memset(&stat, 0, sizeof(struct ls_rjt));
1840 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1841 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1842 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1843 return ndlp->nlp_state;
1844}
1845
1846static uint32_t
1847lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1848 void *arg, uint32_t evt)
1849{
1850 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1851 struct ls_rjt stat;
1852
1853 memset(&stat, 0, sizeof(struct ls_rjt));
1854 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1855 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1856 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1857 return ndlp->nlp_state;
1858}
1859
1860static uint32_t
1861lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1862 void *arg, uint32_t evt)
1863{
1864 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1865
1866 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE;
1867 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1868 spin_lock_irq(shost->host_lock);
1869 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1870 spin_unlock_irq(shost->host_lock);
1871 lpfc_disc_set_adisc(vport, ndlp);
1872 return ndlp->nlp_state;
1873}
1874
1875static uint32_t
1876lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1877 void *arg, uint32_t evt)
1878{
1879 /*
1880 * Take no action. If a LOGO is outstanding, then possibly DevLoss has
1881 * timed out and is calling for Device Remove. In this case, the LOGO
1882 * must be allowed to complete in state LOGO_ISSUE so that the rpi
1883 * and other NLP flags are correctly cleaned up.
1884 */
1885 return ndlp->nlp_state;
1886}
1887
1888static uint32_t
1889lpfc_device_recov_logo_issue(struct lpfc_vport *vport,
1890 struct lpfc_nodelist *ndlp,
1891 void *arg, uint32_t evt)
1892{
1893 /*
1894 * Device Recovery events have no meaning for a node with a LOGO
1895 * outstanding. The LOGO has to complete first and handle the
1896 * node from that point.
1897 */
1898 return ndlp->nlp_state;
1899}
1900
dea3101e 1901static uint32_t
2e0fef85
JS		 1902lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1903 void *arg, uint32_t evt)
dea3101e 1904{
2e0fef85 1905 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1906
2e0fef85 1907 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1908 return ndlp->nlp_state;
dea3101e 1909}
1910
1911static uint32_t
2e0fef85
JS		 1912lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1913 void *arg, uint32_t evt)
dea3101e 1914{
2e0fef85 1915 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1916
2e0fef85
JS		 1917 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1918 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1919 return ndlp->nlp_state;
dea3101e 1920}
1921
1922static uint32_t
2e0fef85
JS		 1923lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1924 void *arg, uint32_t evt)
dea3101e 1925{
2e0fef85 1926 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1927
2e0fef85 1928 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1929 return ndlp->nlp_state;
dea3101e 1930}
1931
1932static uint32_t
2e0fef85
JS		 1933lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1934 void *arg, uint32_t evt)
dea3101e 1935{
2e0fef85 1936 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1937
2e0fef85 1938 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1939 return ndlp->nlp_state;
dea3101e 1940}
1941
1942static uint32_t
2e0fef85
JS		 1943lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1944 void *arg, uint32_t evt)
dea3101e 1945{
2e0fef85 1946 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1947
51ef4c26 1948 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1949 return ndlp->nlp_state;
dea3101e 1950}
1951
1952static uint32_t
2e0fef85
JS		 1953lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
1954 struct lpfc_nodelist *ndlp,
1955 void *arg,
1956 uint32_t evt)
dea3101e 1957{
2e0fef85
JS		 1958 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1959
5024ab17 1960 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
2e0fef85
JS		 1961 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1962 spin_lock_irq(shost->host_lock);
a0f9b48d 1963 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85
JS		 1964 spin_unlock_irq(shost->host_lock);
1965 lpfc_disc_set_adisc(vport, ndlp);
dea3101e 1966
c9f8735b 1967 return ndlp->nlp_state;
dea3101e 1968}
1969
1970static uint32_t
2e0fef85
JS		 1971lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1972 void *arg, uint32_t evt)
dea3101e 1973{
2e0fef85 1974 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1975
2e0fef85 1976 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1977 return ndlp->nlp_state;
dea3101e 1978}
1979
1980static uint32_t
2e0fef85
JS		 1981lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1982 void *arg, uint32_t evt)
dea3101e 1983{
2e0fef85 1984 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1985
2e0fef85 1986 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1987 return ndlp->nlp_state;
dea3101e 1988}
1989
1990static uint32_t
2e0fef85
JS		 1991lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1992 void *arg, uint32_t evt)
dea3101e 1993{
2e0fef85 1994 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1995
2e0fef85 1996 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1997 return ndlp->nlp_state;
dea3101e 1998}
1999
2000static uint32_t
2e0fef85
JS		 2001lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
2002 struct lpfc_nodelist *ndlp,
2003 void *arg, uint32_t evt)
dea3101e 2004{
2e0fef85 2005 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2006
2e0fef85 2007 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 2008 return ndlp->nlp_state;
dea3101e 2009}
2010
2011static uint32_t
2e0fef85
JS		 2012lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2013 void *arg, uint32_t evt)
dea3101e 2014{
2e0fef85
JS		 2015 struct lpfc_hba *phba = vport->phba;
2016 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2017
2018 /* flush the target */
51ef4c26
JS		 2019 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
2020 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
dea3101e 2021
2022 /* Treat like rcv logo */
2e0fef85 2023 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
c9f8735b 2024 return ndlp->nlp_state;
dea3101e 2025}
2026
2027static uint32_t
2e0fef85
JS		 2028lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
2029 struct lpfc_nodelist *ndlp,
2030 void *arg,
2031 uint32_t evt)
dea3101e 2032{
2e0fef85
JS		 2033 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2034
5024ab17 2035 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
2e0fef85
JS		 2036 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2037 spin_lock_irq(shost->host_lock);
a0f9b48d 2038 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85
JS		 2039 spin_unlock_irq(shost->host_lock);
2040 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 2041 return ndlp->nlp_state;
dea3101e 2042}
2043
2044static uint32_t
2e0fef85
JS		 2045lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2046 void *arg, uint32_t evt)
dea3101e 2047{
2e0fef85
JS		 2048 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2049 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2050
2051 /* Ignore PLOGI if we have an outstanding LOGO */
0d2b6b83 2052 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
c9f8735b 2053 return ndlp->nlp_state;
2e0fef85 2054 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
0d2b6b83 2055 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2e0fef85 2056 spin_lock_irq(shost->host_lock);
0d2b6b83 2057 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
2e0fef85 2058 spin_unlock_irq(shost->host_lock);
0d2b6b83
JS		 2059 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
2060 /* send PLOGI immediately, move to PLOGI issue state */
2061 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2062 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2063 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2064 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2065 }
dea3101e 2066 }
c9f8735b 2067 return ndlp->nlp_state;
dea3101e 2068}
2069
2070static uint32_t
2e0fef85
JS		 2071lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2072 void *arg, uint32_t evt)
dea3101e 2073{
2e0fef85
JS		 2074 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2075 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2076 struct ls_rjt stat;
dea3101e 2077
2078 memset(&stat, 0, sizeof (struct ls_rjt));
2079 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2080 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
858c9f6c 2081 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
dea3101e 2082
2083 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2084 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2e0fef85 2085 spin_lock_irq(shost->host_lock);
c9f8735b 2086 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 2087 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 2088 spin_unlock_irq(shost->host_lock);
2089 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2090 lpfc_issue_els_adisc(vport, ndlp, 0);
dea3101e 2091 } else {
5024ab17 2092 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 2093 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2094 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e 2095 }
2096 }
c9f8735b 2097 return ndlp->nlp_state;
dea3101e 2098}
2099
2100static uint32_t
2e0fef85
JS		 2101lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2102 void *arg, uint32_t evt)
dea3101e 2103{
2e0fef85 2104 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2105
2e0fef85 2106 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 2107 return ndlp->nlp_state;
dea3101e 2108}
2109
2110static uint32_t
2e0fef85
JS		 2111lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2112 void *arg, uint32_t evt)
dea3101e 2113{
2e0fef85 2114 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2115
2e0fef85 2116 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
33ccf8d1
JS		 2117 /*
2118 * Do not start discovery if discovery is about to start
2119 * or discovery in progress for this node. Starting discovery
2120 * here will affect the counting of discovery threads.
2121 */
2fb9bd8b 2122 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
92d7f7b0 2123 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
dea3101e 2124 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
92d7f7b0 2125 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 2126 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 2127 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2128 lpfc_issue_els_adisc(vport, ndlp, 0);
dea3101e 2129 } else {
5024ab17 2130 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 2131 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2132 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e 2133 }
2134 }
c9f8735b 2135 return ndlp->nlp_state;
dea3101e 2136}
2137
2138static uint32_t
2e0fef85
JS		 2139lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2140 void *arg, uint32_t evt)
dea3101e 2141{
2e0fef85
JS		 2142 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2143 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2144
2e0fef85 2145 spin_lock_irq(shost->host_lock);
c9f8735b 2146 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 2147 spin_unlock_irq(shost->host_lock);
c9f8735b 2148
51ef4c26 2149 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 2150
2e0fef85 2151 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
256ec0d0
JS		 2152 mod_timer(&ndlp->nlp_delayfunc,
2153 jiffies + msecs_to_jiffies(1000 * 1));
2e0fef85 2154 spin_lock_irq(shost->host_lock);
c9f8735b
JW		 2155 ndlp->nlp_flag |= NLP_DELAY_TMO;
2156 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 2157 spin_unlock_irq(shost->host_lock);
5024ab17 2158 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b 2159 } else {
2e0fef85 2160 spin_lock_irq(shost->host_lock);
c9f8735b 2161 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 2162 spin_unlock_irq(shost->host_lock);
dea3101e 2163 }
c9f8735b
JW		 2164 return ndlp->nlp_state;
2165}
dea3101e 2166
c9f8735b 2167static uint32_t
2e0fef85
JS		 2168lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2169 void *arg, uint32_t evt)
c9f8735b
JW		 2170{
2171 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 2172 IOCB_t *irsp;
8b455cf3 2173 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
c9f8735b
JW		 2174
2175 cmdiocb = (struct lpfc_iocbq *) arg;
2176 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 2177
2178 irsp = &rspiocb->iocb;
2179 if (irsp->ulpStatus) {
8b455cf3 2180 spin_lock_irq(shost->host_lock);
a8adb832 2181 ndlp->nlp_flag |= NLP_DEFER_RM;
8b455cf3 2182 spin_unlock_irq(shost->host_lock);
a0f9b48d
JS		 2183 return NLP_STE_FREED_NODE;
2184 }
c9f8735b
JW		 2185 return ndlp->nlp_state;
2186}
2187
2188static uint32_t
2e0fef85
JS		 2189lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2190 void *arg, uint32_t evt)
c9f8735b
JW		 2191{
2192 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 2193 IOCB_t *irsp;
c9f8735b
JW		 2194
2195 cmdiocb = (struct lpfc_iocbq *) arg;
2196 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 2197
2198 irsp = &rspiocb->iocb;
2199 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2e0fef85 2200 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 2201 return NLP_STE_FREED_NODE;
2202 }
c9f8735b 2203 return ndlp->nlp_state;
dea3101e 2204}
2205
2206static uint32_t
2e0fef85
JS		 2207lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2208 void *arg, uint32_t evt)
dea3101e 2209{
d7c255b2 2210 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
086a345f
JS		 2211
2212 /* For the fabric port just clear the fc flags. */
d7c255b2
JS		 2213 if (ndlp->nlp_DID == Fabric_DID) {
2214 spin_lock_irq(shost->host_lock);
2215 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2216 spin_unlock_irq(shost->host_lock);
2217 }
2e0fef85 2218 lpfc_unreg_rpi(vport, ndlp);
c9f8735b
JW		 2219 return ndlp->nlp_state;
2220}
2221
2222static uint32_t
2e0fef85
JS		 2223lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2224 void *arg, uint32_t evt)
c9f8735b
JW		 2225{
2226 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 2227 IOCB_t *irsp;
c9f8735b
JW		 2228
2229 cmdiocb = (struct lpfc_iocbq *) arg;
2230 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 2231
2232 irsp = &rspiocb->iocb;
2233 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2e0fef85 2234 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 2235 return NLP_STE_FREED_NODE;
2236 }
c9f8735b 2237 return ndlp->nlp_state;
dea3101e 2238}
2239
2240static uint32_t
2e0fef85
JS		 2241lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
2242 struct lpfc_nodelist *ndlp,
2243 void *arg, uint32_t evt)
dea3101e 2244{
2e0fef85 2245 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
04c68496 2246 MAILBOX_t *mb = &pmb->u.mb;
dea3101e 2247
04c68496 2248 if (!mb->mbxStatus) {
6d368e53
JS		 2249 /* SLI4 ports have preallocated logical rpis. */
2250 if (vport->phba->sli_rev < LPFC_SLI_REV4)
2251 ndlp->nlp_rpi = mb->un.varWords[0];
4042629e 2252 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
04c68496 2253 } else {
a0f9b48d 2254 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
2e0fef85 2255 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 2256 return NLP_STE_FREED_NODE;
2257 }
2258 }
c9f8735b 2259 return ndlp->nlp_state;
dea3101e 2260}
2261
2262static uint32_t
2e0fef85
JS		 2263lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2264 void *arg, uint32_t evt)
dea3101e 2265{
2e0fef85
JS		 2266 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2267
a0f9b48d 2268 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2e0fef85 2269 spin_lock_irq(shost->host_lock);
a0f9b48d 2270 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 2271 spin_unlock_irq(shost->host_lock);
a0f9b48d
JS		 2272 return ndlp->nlp_state;
2273 }
2e0fef85 2274 lpfc_drop_node(vport, ndlp);
c9f8735b 2275 return NLP_STE_FREED_NODE;
dea3101e 2276}
2277
2278static uint32_t
2e0fef85
JS		 2279lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2280 void *arg, uint32_t evt)
dea3101e 2281{
2e0fef85
JS		 2282 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2283
92d7f7b0
JS		 2284 /* Don't do anything that will mess up processing of the
2285 * previous RSCN.
2286 */
2287 if (vport->fc_flag & FC_RSCN_DEFERRED)
2288 return ndlp->nlp_state;
2289
eaf15d5b 2290 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2e0fef85 2291 spin_lock_irq(shost->host_lock);
a0f9b48d 2292 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 2293 spin_unlock_irq(shost->host_lock);
c9f8735b 2294 return ndlp->nlp_state;
dea3101e 2295}
2296
2297
2298/* This next section defines the NPort Discovery State Machine */
2299
2300/* There are 4 different double linked lists nodelist entries can reside on.
2301 * The plogi list and adisc list are used when Link Up discovery or RSCN
2302 * processing is needed. Each list holds the nodes that we will send PLOGI
2303 * or ADISC on. These lists will keep track of what nodes will be effected
2304 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
2305 * The unmapped_list will contain all nodes that we have successfully logged
2306 * into at the Fibre Channel level. The mapped_list will contain all nodes
2307 * that are mapped FCP targets.
2308 */
2309/*
2310 * The bind list is a list of undiscovered (potentially non-existent) nodes
2311 * that we have saved binding information on. This information is used when
2312 * nodes transition from the unmapped to the mapped list.
2313 */
2314/* For UNUSED_NODE state, the node has just been allocated .
2315 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
2316 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
2317 * and put on the unmapped list. For ADISC processing, the node is taken off
2318 * the ADISC list and placed on either the mapped or unmapped list (depending
2319 * on its previous state). Once on the unmapped list, a PRLI is issued and the
2320 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
2321 * changed to UNMAPPED_NODE. If the completion indicates a mapped
2322 * node, the node is taken off the unmapped list. The binding list is checked
2323 * for a valid binding, or a binding is automatically assigned. If binding
2324 * assignment is unsuccessful, the node is left on the unmapped list. If
2325 * binding assignment is successful, the associated binding list entry (if
2326 * any) is removed, and the node is placed on the mapped list.
2327 */
2328/*
2329 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
c01f3208 2330 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
dea3101e 2331 * expire, all effected nodes will receive a DEVICE_RM event.
2332 */
2333/*
2334 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
2335 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
2336 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
2337 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
2338 * we will first process the ADISC list. 32 entries are processed initially and
2339 * ADISC is initited for each one. Completions / Events for each node are
2340 * funnelled thru the state machine. As each node finishes ADISC processing, it
2341 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
2342 * waiting, and the ADISC list count is identically 0, then we are done. For
2343 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
2344 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
2345 * list. 32 entries are processed initially and PLOGI is initited for each one.
2346 * Completions / Events for each node are funnelled thru the state machine. As
2347 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
2348 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
2349 * indentically 0, then we are done. We have now completed discovery / RSCN
2350 * handling. Upon completion, ALL nodes should be on either the mapped or
2351 * unmapped lists.
2352 */
2353
2354static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
2e0fef85 2355 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
dea3101e 2356 /* Action routine Event Current State */
2357 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2358 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2359 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2360 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2361 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2362 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2363 lpfc_disc_illegal, /* CMPL_PLOGI */
2364 lpfc_disc_illegal, /* CMPL_PRLI */
2365 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2366 lpfc_disc_illegal, /* CMPL_ADISC */
2367 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2368 lpfc_device_rm_unused_node, /* DEVICE_RM */
df9e1b59 2369 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */
dea3101e 2370
2371 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
92d7f7b0 2372 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
c9f8735b 2373 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
dea3101e 2374 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2375 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2376 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2377 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2378 lpfc_disc_illegal, /* CMPL_PRLI */
0ff10d46 2379 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
dea3101e 2380 lpfc_disc_illegal, /* CMPL_ADISC */
0ff10d46 2381 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
dea3101e 2382 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2383 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2384
2385 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
2386 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
2387 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
2388 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
2389 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
2390 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
2391 lpfc_disc_illegal, /* CMPL_PLOGI */
2392 lpfc_disc_illegal, /* CMPL_PRLI */
2393 lpfc_disc_illegal, /* CMPL_LOGO */
2394 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
2395 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2396 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
2397 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
2398
2399 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
2400 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
2401 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
2402 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
2403 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
2404 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
87af33fe 2405 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
dea3101e 2406 lpfc_disc_illegal, /* CMPL_PRLI */
2407 lpfc_disc_illegal, /* CMPL_LOGO */
2408 lpfc_disc_illegal, /* CMPL_ADISC */
2409 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
2410 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
2411 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
2412
2413 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
2414 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
2415 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
2416 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
2417 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
2418 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
87af33fe 2419 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
dea3101e 2420 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
2421 lpfc_disc_illegal, /* CMPL_LOGO */
2422 lpfc_disc_illegal, /* CMPL_ADISC */
2423 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2424 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2425 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2426
086a345f
JS		 2427 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */
2428 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */
2429 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */
2430 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */
2431 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */
2432 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */
2433 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2434 lpfc_disc_illegal, /* CMPL_PRLI */
2435 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */
2436 lpfc_disc_illegal, /* CMPL_ADISC */
2437 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2438 lpfc_device_rm_logo_issue, /* DEVICE_RM */
2439 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */
2440
dea3101e 2441 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2442 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2443 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2444 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2445 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2446 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
2447 lpfc_disc_illegal, /* CMPL_PLOGI */
2448 lpfc_disc_illegal, /* CMPL_PRLI */
2449 lpfc_disc_illegal, /* CMPL_LOGO */
2450 lpfc_disc_illegal, /* CMPL_ADISC */
2451 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2452 lpfc_disc_illegal, /* DEVICE_RM */
2453 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2454
2455 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2456 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2457 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2458 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2459 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2460 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2461 lpfc_disc_illegal, /* CMPL_PLOGI */
2462 lpfc_disc_illegal, /* CMPL_PRLI */
2463 lpfc_disc_illegal, /* CMPL_LOGO */
2464 lpfc_disc_illegal, /* CMPL_ADISC */
2465 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2466 lpfc_disc_illegal, /* DEVICE_RM */
2467 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2468
2469 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2470 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2471 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2472 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2473 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2474 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
c9f8735b
JW		 2475 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2476 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
dea3101e 2477 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
c9f8735b 2478 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
dea3101e 2479 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2480 lpfc_device_rm_npr_node, /* DEVICE_RM */
2481 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2482};
2483
2484int
2e0fef85
JS		 2485lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2486 void *arg, uint32_t evt)
dea3101e 2487{
2488 uint32_t cur_state, rc;
2e0fef85 2489 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
dea3101e 2490 uint32_t);
e47c9093
JS		 2491 uint32_t got_ndlp = 0;
2492
2493 if (lpfc_nlp_get(ndlp))
2494 got_ndlp = 1;
dea3101e 2495
dea3101e 2496 cur_state = ndlp->nlp_state;
2497
2498 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
e8b62011
JS		 2499 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2500 "0211 DSM in event x%x on NPort x%x in "
2501 "state %d Data: x%x\n",
2502 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
dea3101e 2503
858c9f6c
JS		 2504 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2505 "DSM in: evt:%d ste:%d did:x%x",
2506 evt, cur_state, ndlp->nlp_DID);
2507
dea3101e 2508 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2e0fef85 2509 rc = (func) (vport, ndlp, arg, evt);
dea3101e 2510
2511 /* DSM out state <rc> on NPort <nlp_DID> */
e47c9093
JS		 2512 if (got_ndlp) {
2513 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
e8b62011
JS		 2514 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2515 rc, ndlp->nlp_DID, ndlp->nlp_flag);
dea3101e 2516
e47c9093
JS		 2517 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2518 "DSM out: ste:%d did:x%x flg:x%x",
2519 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2520 /* Decrement the ndlp reference count held for this function */
2521 lpfc_nlp_put(ndlp);
2522 } else {
2523 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
d7c255b2 2524 "0213 DSM out state %d on NPort free\n", rc);
858c9f6c 2525
e47c9093
JS		 2526 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2527 "DSM out: ste:%d did:x%x flg:x%x",
2528 rc, 0, 0);
2529 }
dea3101e 2530
c9f8735b 2531 return rc;
dea3101e 2532}
Linux kernel - Deliverables
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