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scsi: lpfc: fix oops/BUG in lpfc_sli_ringtxcmpl_put()
[mirror_ubuntu-zesty-kernel.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. *
50611577 4 * Copyright (C) 2004-2016 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
JB		 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e
JB		 20 *******************************************************************/
21
dea3101e
JB		 22#include <linux/blkdev.h>
23#include <linux/pci.h>
5a0e3ad6 24#include <linux/slab.h>
dea3101e
JB		 25#include <linux/interrupt.h>
26
91886523 27#include <scsi/scsi.h>
dea3101e
JB		 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
JB		 33#include "lpfc_hw.h"
34#include "lpfc_sli.h"
da0436e9 35#include "lpfc_sli4.h"
ea2151b4 36#include "lpfc_nl.h"
dea3101e
JB		 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
JB		 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
JB		 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
JB		 63
64 /* we match, return success */
c9f8735b 65 return 1;
dea3101e
JB		 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
JB		 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
JB		 161}
162
163static void *
2e0fef85 164lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
92d7f7b0 165 struct lpfc_iocbq *rspiocb)
dea3101e
JB		 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
JB		 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
JB		 194}
195
196
2a9bf3d0 197
dea3101e
JB		 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{
2a9bf3d0 206 LIST_HEAD(abort_list);
2e0fef85
JS		 207 struct lpfc_sli *psli = &phba->sli;
208 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
dea3101e 209 struct lpfc_iocbq *iocb, *next_iocb;
dea3101e
JB		 210
211 /* Abort outstanding I/O on NPort <nlp_DID> */
e8b62011 212 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
2a9bf3d0 213 "2819 Abort outstanding I/O on NPort x%x "
e8b62011
JS		 214 "Data: x%x x%x x%x\n",
215 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
216 ndlp->nlp_rpi);
0976e1a6 217 /* Clean up all fabric IOs first.*/
92d7f7b0 218 lpfc_fabric_abort_nport(ndlp);
dea3101e 219
0976e1a6
JS		 220 /*
221 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list
222 * of all ELS IOs that need an ABTS. The IOs need to stay on the
223 * txcmplq so that the abort operation completes them successfully.
224 */
2e0fef85 225 spin_lock_irq(&phba->hbalock);
0976e1a6
JS		 226 if (phba->sli_rev == LPFC_SLI_REV4)
227 spin_lock(&pring->ring_lock);
228 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
229 /* Add to abort_list on on NDLP match. */
2a9bf3d0
JS		 230 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
231 list_add_tail(&iocb->dlist, &abort_list);
07951076 232 }
0976e1a6
JS		 233 if (phba->sli_rev == LPFC_SLI_REV4)
234 spin_unlock(&pring->ring_lock);
2e0fef85 235 spin_unlock_irq(&phba->hbalock);
dea3101e 236
0976e1a6 237 /* Abort the targeted IOs and remove them from the abort list. */
2a9bf3d0
JS		 238 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) {
239 spin_lock_irq(&phba->hbalock);
240 list_del_init(&iocb->dlist);
241 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
242 spin_unlock_irq(&phba->hbalock);
243 }
244
0976e1a6
JS		 245 INIT_LIST_HEAD(&abort_list);
246
247 /* Now process the txq */
248 spin_lock_irq(&phba->hbalock);
249 if (phba->sli_rev == LPFC_SLI_REV4)
250 spin_lock(&pring->ring_lock);
251
252 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
253 /* Check to see if iocb matches the nport we are looking for */
254 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
255 list_del_init(&iocb->list);
256 list_add_tail(&iocb->list, &abort_list);
257 }
258 }
259
260 if (phba->sli_rev == LPFC_SLI_REV4)
261 spin_unlock(&pring->ring_lock);
262 spin_unlock_irq(&phba->hbalock);
263
a257bf90 264 /* Cancel all the IOCBs from the completions list */
0976e1a6
JS		 265 lpfc_sli_cancel_iocbs(phba, &abort_list,
266 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
2534ba75 267
0d2b6b83 268 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
c9f8735b 269 return 0;
dea3101e
JB		 270}
271
272static int
2e0fef85 273lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
92d7f7b0 274 struct lpfc_iocbq *cmdiocb)
dea3101e 275{
2e0fef85
JS		 276 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
277 struct lpfc_hba *phba = vport->phba;
dea3101e 278 struct lpfc_dmabuf *pcmd;
ed4afe74 279 uint64_t nlp_portwwn = 0;
dea3101e
JB		 280 uint32_t *lp;
281 IOCB_t *icmd;
282 struct serv_parm *sp;
d6de08cc 283 uint32_t ed_tov;
dea3101e
JB		 284 LPFC_MBOXQ_t *mbox;
285 struct ls_rjt stat;
286 int rc;
287
288 memset(&stat, 0, sizeof (struct ls_rjt));
dea3101e
JB		 289 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
290 lp = (uint32_t *) pcmd->virt;
291 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
a8adb832
JS		 292 if (wwn_to_u64(sp->portName.u.wwn) == 0) {
293 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
294 "0140 PLOGI Reject: invalid nname\n");
295 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
296 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
297 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
298 NULL);
299 return 0;
300 }
301 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
302 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
303 "0141 PLOGI Reject: invalid pname\n");
304 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
305 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
306 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
307 NULL);
308 return 0;
309 }
ed4afe74
JS		 310
311 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn);
341af102 312 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) {
dea3101e
JB		 313 /* Reject this request because invalid parameters */
314 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
315 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
858c9f6c
JS		 316 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
317 NULL);
c9f8735b 318 return 0;
dea3101e
JB		 319 }
320 icmd = &cmdiocb->iocb;
321
322 /* PLOGI chkparm OK */
e8b62011 323 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
e74c03c8
JS		 324 "0114 PLOGI chkparm OK Data: x%x x%x x%x "
325 "x%x x%x x%x\n",
e8b62011 326 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
e74c03c8
JS		 327 ndlp->nlp_rpi, vport->port_state,
328 vport->fc_flag);
dea3101e 329
3de2a653 330 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
dea3101e 331 ndlp->nlp_fcp_info |= CLASS2;
ed957684 332 else
dea3101e 333 ndlp->nlp_fcp_info |= CLASS3;
2e0fef85 334
dea3101e
JB		 335 ndlp->nlp_class_sup = 0;
336 if (sp->cls1.classValid)
337 ndlp->nlp_class_sup |= FC_COS_CLASS1;
338 if (sp->cls2.classValid)
339 ndlp->nlp_class_sup |= FC_COS_CLASS2;
340 if (sp->cls3.classValid)
341 ndlp->nlp_class_sup |= FC_COS_CLASS3;
342 if (sp->cls4.classValid)
343 ndlp->nlp_class_sup |= FC_COS_CLASS4;
344 ndlp->nlp_maxframe =
345 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
346
ed4afe74 347 /* if already logged in, do implicit logout */
2fe165b6 348 switch (ndlp->nlp_state) {
dea3101e
JB		 349 case NLP_STE_NPR_NODE:
350 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
351 break;
352 case NLP_STE_REG_LOGIN_ISSUE:
353 case NLP_STE_PRLI_ISSUE:
354 case NLP_STE_UNMAPPED_NODE:
355 case NLP_STE_MAPPED_NODE:
ed4afe74
JS		 356 /* lpfc_plogi_confirm_nport skips fabric did, handle it here */
357 if (!(ndlp->nlp_type & NLP_FABRIC)) {
358 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
359 ndlp, NULL);
360 return 1;
361 }
362 if (nlp_portwwn != 0 &&
363 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn))
364 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
365 "0143 PLOGI recv'd from DID: x%x "
366 "WWPN changed: old %llx new %llx\n",
367 ndlp->nlp_DID,
368 (unsigned long long)nlp_portwwn,
369 (unsigned long long)
370 wwn_to_u64(sp->portName.u.wwn));
371
372 ndlp->nlp_prev_state = ndlp->nlp_state;
373 /* rport needs to be unregistered first */
374 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
375 break;
dea3101e
JB		 376 }
377
939723a4 378 /* Check for Nport to NPort pt2pt protocol */
92d7f7b0
JS		 379 if ((vport->fc_flag & FC_PT2PT) &&
380 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
dea3101e 381 /* rcv'ed PLOGI decides what our NPortId will be */
2e0fef85 382 vport->fc_myDID = icmd->un.rcvels.parmRo;
d6de08cc
JS		 383
384 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
385 if (sp->cmn.edtovResolution) {
386 /* E_D_TOV ticks are in nanoseconds */
387 ed_tov = (phba->fc_edtov + 999999) / 1000000;
dea3101e 388 }
d6de08cc 389
939723a4 390 /*
d6de08cc
JS		 391 * For pt-to-pt, use the larger EDTOV
392 * RATOV = 2 * EDTOV
939723a4 393 */
d6de08cc
JS		 394 if (ed_tov > phba->fc_edtov)
395 phba->fc_edtov = ed_tov;
396 phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
397
398 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
399
400 /* Issue config_link / reg_vfi to account for updated TOV's */
401
939723a4
JS		 402 if (phba->sli_rev == LPFC_SLI_REV4)
403 lpfc_issue_reg_vfi(vport);
d6de08cc
JS		 404 else {
405 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
406 if (mbox == NULL)
407 goto out;
408 lpfc_config_link(phba, mbox);
409 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
410 mbox->vport = vport;
411 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
412 if (rc == MBX_NOT_FINISHED) {
413 mempool_free(mbox, phba->mbox_mem_pool);
414 goto out;
415 }
416 }
dea3101e 417
2e0fef85 418 lpfc_can_disctmo(vport);
dea3101e 419 }
d6de08cc 420
dea3101e 421 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2e0fef85 422 if (!mbox)
dea3101e
JB		 423 goto out;
424
6b5151fd
JS		 425 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */
426 if (phba->sli_rev == LPFC_SLI_REV4)
427 lpfc_unreg_rpi(vport, ndlp);
428
6fb120a7 429 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID,
4042629e 430 (uint8_t *) sp, mbox, ndlp->nlp_rpi);
2e0fef85
JS		 431 if (rc) {
432 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e
JB		 433 goto out;
434 }
435
436 /* ACC PLOGI rsp command needs to execute first,
437 * queue this mbox command to be processed later.
438 */
439 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
329f9bc7
JS		 440 /*
441 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
442 * command issued in lpfc_cmpl_els_acc().
443 */
2e0fef85
JS		 444 mbox->vport = vport;
445 spin_lock_irq(shost->host_lock);
5024ab17 446 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
2e0fef85 447 spin_unlock_irq(shost->host_lock);
dea3101e 448
33ccf8d1
JS		 449 /*
450 * If there is an outstanding PLOGI issued, abort it before
451 * sending ACC rsp for received PLOGI. If pending plogi
452 * is not canceled here, the plogi will be rejected by
453 * remote port and will be retried. On a configuration with
454 * single discovery thread, this will cause a huge delay in
455 * discovery. Also this will cause multiple state machines
456 * running in parallel for this node.
457 */
458 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
459 /* software abort outstanding PLOGI */
07951076 460 lpfc_els_abort(phba, ndlp);
33ccf8d1
JS		 461 }
462
858c9f6c 463 if ((vport->port_type == LPFC_NPIV_PORT &&
3de2a653 464 vport->cfg_restrict_login)) {
858c9f6c
JS		 465
466 /* In order to preserve RPIs, we want to cleanup
467 * the default RPI the firmware created to rcv
468 * this ELS request. The only way to do this is
469 * to register, then unregister the RPI.
470 */
471 spin_lock_irq(shost->host_lock);
472 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
473 spin_unlock_irq(shost->host_lock);
474 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
475 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
0a8a86fa 476 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
858c9f6c 477 ndlp, mbox);
0a8a86fa
JS		 478 if (rc)
479 mempool_free(mbox, phba->mbox_mem_pool);
858c9f6c
JS		 480 return 1;
481 }
0a8a86fa
JS		 482 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox);
483 if (rc)
484 mempool_free(mbox, phba->mbox_mem_pool);
c9f8735b 485 return 1;
dea3101e
JB		 486out:
487 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
488 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
858c9f6c 489 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
c9f8735b 490 return 0;
dea3101e
JB		 491}
492
6b5151fd
JS		 493/**
494 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine
495 * @phba: pointer to lpfc hba data structure.
496 * @mboxq: pointer to mailbox object
497 *
498 * This routine is invoked to issue a completion to a rcv'ed
499 * ADISC or PDISC after the paused RPI has been resumed.
500 **/
501static void
502lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
503{
504 struct lpfc_vport *vport;
505 struct lpfc_iocbq *elsiocb;
506 struct lpfc_nodelist *ndlp;
507 uint32_t cmd;
508
509 elsiocb = (struct lpfc_iocbq *)mboxq->context1;
510 ndlp = (struct lpfc_nodelist *) mboxq->context2;
511 vport = mboxq->vport;
512 cmd = elsiocb->drvrTimeout;
513
514 if (cmd == ELS_CMD_ADISC) {
515 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp);
516 } else {
517 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb,
518 ndlp, NULL);
519 }
520 kfree(elsiocb);
72859909 521 mempool_free(mboxq, phba->mbox_mem_pool);
6b5151fd
JS		 522}
523
dea3101e 524static int
2e0fef85 525lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e
JB		 526 struct lpfc_iocbq *cmdiocb)
527{
2e0fef85 528 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6b5151fd 529 struct lpfc_iocbq *elsiocb;
dea3101e 530 struct lpfc_dmabuf *pcmd;
2e0fef85
JS		 531 struct serv_parm *sp;
532 struct lpfc_name *pnn, *ppn;
dea3101e
JB		 533 struct ls_rjt stat;
534 ADISC *ap;
535 IOCB_t *icmd;
536 uint32_t *lp;
537 uint32_t cmd;
538
539 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
540 lp = (uint32_t *) pcmd->virt;
541
542 cmd = *lp++;
543 if (cmd == ELS_CMD_ADISC) {
544 ap = (ADISC *) lp;
545 pnn = (struct lpfc_name *) & ap->nodeName;
546 ppn = (struct lpfc_name *) & ap->portName;
547 } else {
548 sp = (struct serv_parm *) lp;
549 pnn = (struct lpfc_name *) & sp->nodeName;
550 ppn = (struct lpfc_name *) & sp->portName;
551 }
552
553 icmd = &cmdiocb->iocb;
2e0fef85 554 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
6b5151fd
JS		 555
556 /*
557 * As soon as we send ACC, the remote NPort can
558 * start sending us data. Thus, for SLI4 we must
559 * resume the RPI before the ACC goes out.
560 */
561 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
562 elsiocb = kmalloc(sizeof(struct lpfc_iocbq),
563 GFP_KERNEL);
564 if (elsiocb) {
565
566 /* Save info from cmd IOCB used in rsp */
567 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb,
568 sizeof(struct lpfc_iocbq));
569
570 /* Save the ELS cmd */
571 elsiocb->drvrTimeout = cmd;
572
573 lpfc_sli4_resume_rpi(ndlp,
574 lpfc_mbx_cmpl_resume_rpi, elsiocb);
575 goto out;
576 }
577 }
578
dea3101e 579 if (cmd == ELS_CMD_ADISC) {
2e0fef85 580 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
2fe165b6 581 } else {
6b5151fd
JS		 582 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
583 ndlp, NULL);
dea3101e 584 }
6b5151fd
JS		 585out:
586 /* If we are authenticated, move to the proper state */
587 if (ndlp->nlp_type & NLP_FCP_TARGET)
588 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
589 else
590 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
591
c9f8735b 592 return 1;
dea3101e
JB		 593 }
594 /* Reject this request because invalid parameters */
595 stat.un.b.lsRjtRsvd0 = 0;
596 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
597 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
598 stat.un.b.vendorUnique = 0;
858c9f6c 599 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
dea3101e 600
dea3101e 601 /* 1 sec timeout */
256ec0d0 602 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
dea3101e 603
2e0fef85 604 spin_lock_irq(shost->host_lock);
dea3101e 605 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 606 spin_unlock_irq(shost->host_lock);
5024ab17
JW		 607 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
608 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85 609 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
c9f8735b 610 return 0;
dea3101e
JB		 611}
612
613static int
2e0fef85
JS		 614lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
615 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
dea3101e 616{
2e0fef85 617 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4b40c59e
JS		 618 struct lpfc_hba *phba = vport->phba;
619 struct lpfc_vport **vports;
620 int i, active_vlink_present = 0 ;
2e0fef85
JS		 621
622 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
dea3101e
JB		 623 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
624 * PLOGIs during LOGO storms from a device.
625 */
2e0fef85 626 spin_lock_irq(shost->host_lock);
dea3101e 627 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 628 spin_unlock_irq(shost->host_lock);
82d9a2a2 629 if (els_cmd == ELS_CMD_PRLO)
51ef4c26 630 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
82d9a2a2 631 else
51ef4c26 632 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
4b40c59e
JS		 633 if (ndlp->nlp_DID == Fabric_DID) {
634 if (vport->port_state <= LPFC_FDISC)
635 goto out;
6fb120a7 636 lpfc_linkdown_port(vport);
6fb120a7 637 spin_lock_irq(shost->host_lock);
4b40c59e 638 vport->fc_flag |= FC_VPORT_LOGO_RCVD;
6fb120a7 639 spin_unlock_irq(shost->host_lock);
4b40c59e
JS		 640 vports = lpfc_create_vport_work_array(phba);
641 if (vports) {
642 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
643 i++) {
644 if ((!(vports[i]->fc_flag &
645 FC_VPORT_LOGO_RCVD)) &&
646 (vports[i]->port_state > LPFC_FDISC)) {
647 active_vlink_present = 1;
648 break;
649 }
650 }
651 lpfc_destroy_vport_work_array(phba, vports);
652 }
dea3101e 653
cc82355a
JS		 654 /*
655 * Don't re-instantiate if vport is marked for deletion.
656 * If we are here first then vport_delete is going to wait
657 * for discovery to complete.
658 */
659 if (!(vport->load_flag & FC_UNLOADING) &&
660 active_vlink_present) {
4b40c59e
JS		 661 /*
662 * If there are other active VLinks present,
663 * re-instantiate the Vlink using FDISC.
664 */
256ec0d0
JS		 665 mod_timer(&ndlp->nlp_delayfunc,
666 jiffies + msecs_to_jiffies(1000));
4b40c59e
JS		 667 spin_lock_irq(shost->host_lock);
668 ndlp->nlp_flag |= NLP_DELAY_TMO;
669 spin_unlock_irq(shost->host_lock);
670 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
671 vport->port_state = LPFC_FDISC;
672 } else {
673 spin_lock_irq(shost->host_lock);
674 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG;
675 spin_unlock_irq(shost->host_lock);
676 lpfc_retry_pport_discovery(phba);
677 }
6fb120a7
JS		 678 } else if ((!(ndlp->nlp_type & NLP_FABRIC) &&
679 ((ndlp->nlp_type & NLP_FCP_TARGET) ||
680 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
681 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
dea3101e 682 /* Only try to re-login if this is NOT a Fabric Node */
256ec0d0
JS		 683 mod_timer(&ndlp->nlp_delayfunc,
684 jiffies + msecs_to_jiffies(1000 * 1));
2e0fef85 685 spin_lock_irq(shost->host_lock);
dea3101e 686 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 687 spin_unlock_irq(shost->host_lock);
dea3101e 688
5024ab17 689 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b 690 }
4b40c59e 691out:
87af33fe
JS		 692 ndlp->nlp_prev_state = ndlp->nlp_state;
693 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 694
2e0fef85 695 spin_lock_irq(shost->host_lock);
dea3101e 696 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 697 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 698 /* The driver has to wait until the ACC completes before it continues
699 * processing the LOGO. The action will resume in
700 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
701 * unreg_login, the driver waits so the ACC does not get aborted.
702 */
c9f8735b 703 return 0;
dea3101e
JB		 704}
705
706static void
2e0fef85
JS		 707lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
708 struct lpfc_iocbq *cmdiocb)
dea3101e
JB		 709{
710 struct lpfc_dmabuf *pcmd;
711 uint32_t *lp;
712 PRLI *npr;
713 struct fc_rport *rport = ndlp->rport;
714 u32 roles;
715
716 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
717 lp = (uint32_t *) pcmd->virt;
718 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
719
720 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
721 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
3cb01c57 722 ndlp->nlp_flag &= ~NLP_FIRSTBURST;
92d7f7b0 723 if (npr->prliType == PRLI_FCP_TYPE) {
dea3101e
JB		 724 if (npr->initiatorFunc)
725 ndlp->nlp_type |= NLP_FCP_INITIATOR;
3cb01c57 726 if (npr->targetFunc) {
dea3101e 727 ndlp->nlp_type |= NLP_FCP_TARGET;
3cb01c57
JS		 728 if (npr->writeXferRdyDis)
729 ndlp->nlp_flag |= NLP_FIRSTBURST;
730 }
dea3101e
JB		 731 if (npr->Retry)
732 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
733 }
734 if (rport) {
735 /* We need to update the rport role values */
736 roles = FC_RPORT_ROLE_UNKNOWN;
737 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
738 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
739 if (ndlp->nlp_type & NLP_FCP_TARGET)
740 roles |= FC_RPORT_ROLE_FCP_TARGET;
858c9f6c
JS		 741
742 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
743 "rport rolechg: role:x%x did:x%x flg:x%x",
744 roles, ndlp->nlp_DID, ndlp->nlp_flag);
745
dea3101e
JB		 746 fc_remote_port_rolechg(rport, roles);
747 }
748}
749
750static uint32_t
2e0fef85 751lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 752{
2e0fef85 753 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 754
4042629e 755 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
51ef4c26
JS		 756 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
757 return 0;
758 }
759
1b32f6aa
JS		 760 if (!(vport->fc_flag & FC_PT2PT)) {
761 /* Check config parameter use-adisc or FCP-2 */
762 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
ffc95493
JS		 763 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) &&
764 (ndlp->nlp_type & NLP_FCP_TARGET))) {
1b32f6aa
JS		 765 spin_lock_irq(shost->host_lock);
766 ndlp->nlp_flag |= NLP_NPR_ADISC;
767 spin_unlock_irq(shost->host_lock);
768 return 1;
769 }
92d7f7b0
JS		 770 }
771 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
772 lpfc_unreg_rpi(vport, ndlp);
773 return 0;
dea3101e 774}
6d368e53 775
78730cfe 776/**
25985edc 777 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd.
78730cfe
JS		 778 * @phba : Pointer to lpfc_hba structure.
779 * @vport: Pointer to lpfc_vport structure.
780 * @rpi : rpi to be release.
781 *
782 * This function will send a unreg_login mailbox command to the firmware
783 * to release a rpi.
784 **/
785void
786lpfc_release_rpi(struct lpfc_hba *phba,
787 struct lpfc_vport *vport,
788 uint16_t rpi)
789{
790 LPFC_MBOXQ_t *pmb;
791 int rc;
792
793 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
794 GFP_KERNEL);
795 if (!pmb)
796 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
797 "2796 mailbox memory allocation failed \n");
798 else {
799 lpfc_unreg_login(phba, vport->vpi, rpi, pmb);
800 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
801 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
802 if (rc == MBX_NOT_FINISHED)
803 mempool_free(pmb, phba->mbox_mem_pool);
804 }
805}
dea3101e
JB		 806
807static uint32_t
2e0fef85
JS		 808lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
809 void *arg, uint32_t evt)
dea3101e 810{
78730cfe
JS		 811 struct lpfc_hba *phba;
812 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
78730cfe
JS		 813 uint16_t rpi;
814
815 phba = vport->phba;
816 /* Release the RPI if reglogin completing */
817 if (!(phba->pport->load_flag & FC_UNLOADING) &&
818 (evt == NLP_EVT_CMPL_REG_LOGIN) &&
819 (!pmb->u.mb.mbxStatus)) {
78730cfe
JS		 820 rpi = pmb->u.mb.un.varWords[0];
821 lpfc_release_rpi(phba, vport, rpi);
822 }
e8b62011 823 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
e47c9093 824 "0271 Illegal State Transition: node x%x "
e8b62011
JS		 825 "event x%x, state x%x Data: x%x x%x\n",
826 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
827 ndlp->nlp_flag);
c9f8735b 828 return ndlp->nlp_state;
dea3101e
JB		 829}
830
87af33fe
JS		 831static uint32_t
832lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
833 void *arg, uint32_t evt)
834{
835 /* This transition is only legal if we previously
836 * rcv'ed a PLOGI. Since we don't want 2 discovery threads
837 * working on the same NPortID, do nothing for this thread
838 * to stop it.
839 */
840 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
841 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
e47c9093 842 "0272 Illegal State Transition: node x%x "
87af33fe
JS		 843 "event x%x, state x%x Data: x%x x%x\n",
844 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
845 ndlp->nlp_flag);
846 }
847 return ndlp->nlp_state;
848}
849
dea3101e
JB		 850/* Start of Discovery State Machine routines */
851
852static uint32_t
2e0fef85
JS		 853lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
854 void *arg, uint32_t evt)
dea3101e
JB		 855{
856 struct lpfc_iocbq *cmdiocb;
857
858 cmdiocb = (struct lpfc_iocbq *) arg;
859
2e0fef85 860 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
c9f8735b 861 return ndlp->nlp_state;
dea3101e 862 }
c9f8735b 863 return NLP_STE_FREED_NODE;
dea3101e
JB		 864}
865
866static uint32_t
2e0fef85
JS		 867lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
868 void *arg, uint32_t evt)
dea3101e 869{
2e0fef85 870 lpfc_issue_els_logo(vport, ndlp, 0);
c9f8735b 871 return ndlp->nlp_state;
dea3101e
JB		 872}
873
874static uint32_t
2e0fef85
JS		 875lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
876 void *arg, uint32_t evt)
dea3101e 877{
2e0fef85
JS		 878 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
879 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 880
2e0fef85 881 spin_lock_irq(shost->host_lock);
dea3101e 882 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 883 spin_unlock_irq(shost->host_lock);
51ef4c26 884 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 885
c9f8735b 886 return ndlp->nlp_state;
dea3101e
JB		 887}
888
889static uint32_t
2e0fef85
JS		 890lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
891 void *arg, uint32_t evt)
dea3101e 892{
c9f8735b 893 return NLP_STE_FREED_NODE;
dea3101e
JB		 894}
895
896static uint32_t
2e0fef85
JS		 897lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
898 void *arg, uint32_t evt)
dea3101e 899{
c9f8735b 900 return NLP_STE_FREED_NODE;
dea3101e
JB		 901}
902
df9e1b59
JS		 903static uint32_t
904lpfc_device_recov_unused_node(struct lpfc_vport *vport,
905 struct lpfc_nodelist *ndlp,
906 void *arg, uint32_t evt)
907{
908 return ndlp->nlp_state;
909}
910
dea3101e 911static uint32_t
2e0fef85 912lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e
JB		 913 void *arg, uint32_t evt)
914{
0d2b6b83 915 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 916 struct lpfc_hba *phba = vport->phba;
dea3101e 917 struct lpfc_iocbq *cmdiocb = arg;
2e0fef85
JS		 918 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
919 uint32_t *lp = (uint32_t *) pcmd->virt;
920 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
dea3101e
JB		 921 struct ls_rjt stat;
922 int port_cmp;
923
dea3101e
JB		 924 memset(&stat, 0, sizeof (struct ls_rjt));
925
926 /* For a PLOGI, we only accept if our portname is less
927 * than the remote portname.
928 */
929 phba->fc_stat.elsLogiCol++;
2e0fef85 930 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
92d7f7b0 931 sizeof(struct lpfc_name));
dea3101e
JB		 932
933 if (port_cmp >= 0) {
934 /* Reject this request because the remote node will accept
935 ours */
936 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
937 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
858c9f6c
JS		 938 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
939 NULL);
2fe165b6 940 } else {
0d2b6b83
JS		 941 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) &&
942 (ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
943 (vport->num_disc_nodes)) {
944 spin_lock_irq(shost->host_lock);
945 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
946 spin_unlock_irq(shost->host_lock);
947 /* Check if there are more PLOGIs to be sent */
948 lpfc_more_plogi(vport);
949 if (vport->num_disc_nodes == 0) {
950 spin_lock_irq(shost->host_lock);
951 vport->fc_flag &= ~FC_NDISC_ACTIVE;
952 spin_unlock_irq(shost->host_lock);
953 lpfc_can_disctmo(vport);
954 lpfc_end_rscn(vport);
955 }
956 }
2e0fef85 957 } /* If our portname was less */
dea3101e 958
c9f8735b
JW		 959 return ndlp->nlp_state;
960}
961
92d7f7b0
JS		 962static uint32_t
963lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
964 void *arg, uint32_t evt)
965{
966 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
967 struct ls_rjt stat;
968
969 memset(&stat, 0, sizeof (struct ls_rjt));
970 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
971 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
858c9f6c 972 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
92d7f7b0
JS		 973 return ndlp->nlp_state;
974}
975
c9f8735b 976static uint32_t
2e0fef85
JS		 977lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
978 void *arg, uint32_t evt)
c9f8735b 979{
2e0fef85 980 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
c9f8735b 981
92d7f7b0 982 /* software abort outstanding PLOGI */
2e0fef85 983 lpfc_els_abort(vport->phba, ndlp);
c9f8735b 984
2e0fef85 985 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 986 return ndlp->nlp_state;
dea3101e
JB		 987}
988
989static uint32_t
2e0fef85
JS		 990lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
991 void *arg, uint32_t evt)
dea3101e 992{
2e0fef85
JS		 993 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
994 struct lpfc_hba *phba = vport->phba;
995 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e
JB		 996
997 /* software abort outstanding PLOGI */
07951076 998 lpfc_els_abort(phba, ndlp);
dea3101e
JB		 999
1000 if (evt == NLP_EVT_RCV_LOGO) {
51ef4c26 1001 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2fe165b6 1002 } else {
2e0fef85 1003 lpfc_issue_els_logo(vport, ndlp, 0);
dea3101e
JB		 1004 }
1005
2e0fef85 1006 /* Put ndlp in npr state set plogi timer for 1 sec */
256ec0d0 1007 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1));
2e0fef85 1008 spin_lock_irq(shost->host_lock);
5024ab17 1009 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1010 spin_unlock_irq(shost->host_lock);
5024ab17
JW		 1011 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1012 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
2e0fef85 1013 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 1014
c9f8735b 1015 return ndlp->nlp_state;
dea3101e
JB		 1016}
1017
1018static uint32_t
2e0fef85
JS		 1019lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
1020 struct lpfc_nodelist *ndlp,
1021 void *arg,
dea3101e
JB		 1022 uint32_t evt)
1023{
2e0fef85 1024 struct lpfc_hba *phba = vport->phba;
0ff10d46 1025 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 1026 struct lpfc_iocbq *cmdiocb, *rspiocb;
14691150 1027 struct lpfc_dmabuf *pcmd, *prsp, *mp;
dea3101e
JB		 1028 uint32_t *lp;
1029 IOCB_t *irsp;
1030 struct serv_parm *sp;
d6de08cc 1031 uint32_t ed_tov;
dea3101e 1032 LPFC_MBOXQ_t *mbox;
d6de08cc 1033 int rc;
dea3101e
JB		 1034
1035 cmdiocb = (struct lpfc_iocbq *) arg;
1036 rspiocb = cmdiocb->context_un.rsp_iocb;
1037
1038 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
5024ab17 1039 /* Recovery from PLOGI collision logic */
c9f8735b 1040 return ndlp->nlp_state;
dea3101e
JB		 1041 }
1042
1043 irsp = &rspiocb->iocb;
1044
1045 if (irsp->ulpStatus)
1046 goto out;
1047
1048 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
1049
2e0fef85 1050 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
a2fc4aef
JS		 1051 if (!prsp)
1052 goto out;
dea3101e 1053
2e0fef85 1054 lp = (uint32_t *) prsp->virt;
dea3101e 1055 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
58da1ffb
JS		 1056
1057 /* Some switches have FDMI servers returning 0 for WWN */
1058 if ((ndlp->nlp_DID != FDMI_DID) &&
1059 (wwn_to_u64(sp->portName.u.wwn) == 0 ||
1060 wwn_to_u64(sp->nodeName.u.wwn) == 0)) {
a8adb832
JS		 1061 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1062 "0142 PLOGI RSP: Invalid WWN.\n");
1063 goto out;
1064 }
341af102 1065 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0))
dea3101e 1066 goto out;
dea3101e 1067 /* PLOGI chkparm OK */
e8b62011
JS		 1068 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1069 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
1070 ndlp->nlp_DID, ndlp->nlp_state,
1071 ndlp->nlp_flag, ndlp->nlp_rpi);
3de2a653 1072 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
dea3101e 1073 ndlp->nlp_fcp_info |= CLASS2;
2e0fef85 1074 else
dea3101e 1075 ndlp->nlp_fcp_info |= CLASS3;
2e0fef85 1076
dea3101e
JB		 1077 ndlp->nlp_class_sup = 0;
1078 if (sp->cls1.classValid)
1079 ndlp->nlp_class_sup |= FC_COS_CLASS1;
1080 if (sp->cls2.classValid)
1081 ndlp->nlp_class_sup |= FC_COS_CLASS2;
1082 if (sp->cls3.classValid)
1083 ndlp->nlp_class_sup |= FC_COS_CLASS3;
1084 if (sp->cls4.classValid)
1085 ndlp->nlp_class_sup |= FC_COS_CLASS4;
1086 ndlp->nlp_maxframe =
2e0fef85 1087 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
dea3101e 1088
d6de08cc
JS		 1089 if ((vport->fc_flag & FC_PT2PT) &&
1090 (vport->fc_flag & FC_PT2PT_PLOGI)) {
1091 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
1092 if (sp->cmn.edtovResolution) {
1093 /* E_D_TOV ticks are in nanoseconds */
1094 ed_tov = (phba->fc_edtov + 999999) / 1000000;
1095 }
1096
1097 /*
1098 * Use the larger EDTOV
1099 * RATOV = 2 * EDTOV for pt-to-pt
1100 */
1101 if (ed_tov > phba->fc_edtov)
1102 phba->fc_edtov = ed_tov;
1103 phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
1104
1105 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
1106
1107 /* Issue config_link / reg_vfi to account for updated TOV's */
1108 if (phba->sli_rev == LPFC_SLI_REV4) {
1109 lpfc_issue_reg_vfi(vport);
1110 } else {
01c73bbc
JS		 1111 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1112 if (!mbox) {
1113 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1114 "0133 PLOGI: no memory "
1115 "for config_link "
1116 "Data: x%x x%x x%x x%x\n",
1117 ndlp->nlp_DID, ndlp->nlp_state,
1118 ndlp->nlp_flag, ndlp->nlp_rpi);
1119 goto out;
1120 }
1121
d6de08cc
JS		 1122 lpfc_config_link(phba, mbox);
1123
1124 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1125 mbox->vport = vport;
1126 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
1127 if (rc == MBX_NOT_FINISHED) {
1128 mempool_free(mbox, phba->mbox_mem_pool);
1129 goto out;
1130 }
1131 }
92d7f7b0 1132 }
dea3101e 1133
2e0fef85
JS		 1134 lpfc_unreg_rpi(vport, ndlp);
1135
01c73bbc
JS		 1136 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1137 if (!mbox) {
1138 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1139 "0018 PLOGI: no memory for reg_login "
1140 "Data: x%x x%x x%x x%x\n",
1141 ndlp->nlp_DID, ndlp->nlp_state,
1142 ndlp->nlp_flag, ndlp->nlp_rpi);
1143 goto out;
1144 }
1145
6fb120a7 1146 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID,
4042629e 1147 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) {
2fe165b6 1148 switch (ndlp->nlp_DID) {
dea3101e 1149 case NameServer_DID:
de0c5b32 1150 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
dea3101e
JB		 1151 break;
1152 case FDMI_DID:
de0c5b32 1153 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
dea3101e
JB		 1154 break;
1155 default:
ffc95493 1156 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
de0c5b32 1157 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
dea3101e 1158 }
329f9bc7 1159 mbox->context2 = lpfc_nlp_get(ndlp);
2e0fef85 1160 mbox->vport = vport;
0b727fea 1161 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
dea3101e 1162 != MBX_NOT_FINISHED) {
2e0fef85
JS		 1163 lpfc_nlp_set_state(vport, ndlp,
1164 NLP_STE_REG_LOGIN_ISSUE);
c9f8735b 1165 return ndlp->nlp_state;
dea3101e 1166 }
ffc95493
JS		 1167 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
1168 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
fa4066b6
JS		 1169 /* decrement node reference count to the failed mbox
1170 * command
1171 */
329f9bc7 1172 lpfc_nlp_put(ndlp);
92d7f7b0 1173 mp = (struct lpfc_dmabuf *) mbox->context1;
14691150
JS		 1174 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1175 kfree(mp);
dea3101e 1176 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 1177
e8b62011
JS		 1178 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1179 "0134 PLOGI: cannot issue reg_login "
1180 "Data: x%x x%x x%x x%x\n",
1181 ndlp->nlp_DID, ndlp->nlp_state,
1182 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e
JB		 1183 } else {
1184 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 1185
e8b62011
JS		 1186 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1187 "0135 PLOGI: cannot format reg_login "
1188 "Data: x%x x%x x%x x%x\n",
1189 ndlp->nlp_DID, ndlp->nlp_state,
1190 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e
JB		 1191 }
1192
1193
92d7f7b0
JS		 1194out:
1195 if (ndlp->nlp_DID == NameServer_DID) {
1196 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1197 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1198 "0261 Cannot Register NameServer login\n");
92d7f7b0
JS		 1199 }
1200
8b455cf3
JS		 1201 /*
1202 ** In case the node reference counter does not go to zero, ensure that
1203 ** the stale state for the node is not processed.
1204 */
1205
1206 ndlp->nlp_prev_state = ndlp->nlp_state;
1207 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
0ff10d46 1208 spin_lock_irq(shost->host_lock);
a8adb832 1209 ndlp->nlp_flag |= NLP_DEFER_RM;
0ff10d46 1210 spin_unlock_irq(shost->host_lock);
c9f8735b 1211 return NLP_STE_FREED_NODE;
dea3101e
JB		 1212}
1213
0ff10d46
JS		 1214static uint32_t
1215lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1216 void *arg, uint32_t evt)
1217{
1218 return ndlp->nlp_state;
1219}
1220
1221static uint32_t
1222lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
1223 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
1224{
78730cfe
JS		 1225 struct lpfc_hba *phba;
1226 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1227 MAILBOX_t *mb = &pmb->u.mb;
1228 uint16_t rpi;
1229
1230 phba = vport->phba;
1231 /* Release the RPI */
1232 if (!(phba->pport->load_flag & FC_UNLOADING) &&
1233 !mb->mbxStatus) {
1234 rpi = pmb->u.mb.un.varWords[0];
1235 lpfc_release_rpi(phba, vport, rpi);
1236 }
0ff10d46
JS		 1237 return ndlp->nlp_state;
1238}
1239
dea3101e 1240static uint32_t
2e0fef85
JS		 1241lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1242 void *arg, uint32_t evt)
dea3101e 1243{
2e0fef85
JS		 1244 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1245
1246 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1247 spin_lock_irq(shost->host_lock);
a0f9b48d 1248 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1249 spin_unlock_irq(shost->host_lock);
a0f9b48d 1250 return ndlp->nlp_state;
2e0fef85 1251 } else {
a0f9b48d 1252 /* software abort outstanding PLOGI */
2e0fef85 1253 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1254
2e0fef85 1255 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1256 return NLP_STE_FREED_NODE;
1257 }
dea3101e
JB		 1258}
1259
1260static uint32_t
2e0fef85
JS		 1261lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
1262 struct lpfc_nodelist *ndlp,
1263 void *arg,
1264 uint32_t evt)
dea3101e 1265{
2e0fef85
JS		 1266 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1267 struct lpfc_hba *phba = vport->phba;
1268
92d7f7b0
JS		 1269 /* Don't do anything that will mess up processing of the
1270 * previous RSCN.
1271 */
1272 if (vport->fc_flag & FC_RSCN_DEFERRED)
1273 return ndlp->nlp_state;
1274
dea3101e 1275 /* software abort outstanding PLOGI */
07951076 1276 lpfc_els_abort(phba, ndlp);
dea3101e 1277
5024ab17 1278 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
2e0fef85 1279 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
92d7f7b0 1280 spin_lock_irq(shost->host_lock);
a0f9b48d 1281 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1282 spin_unlock_irq(shost->host_lock);
dea3101e 1283
c9f8735b 1284 return ndlp->nlp_state;
dea3101e
JB		 1285}
1286
1287static uint32_t
2e0fef85
JS		 1288lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1289 void *arg, uint32_t evt)
dea3101e 1290{
0d2b6b83 1291 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 1292 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1293 struct lpfc_iocbq *cmdiocb;
1294
1295 /* software abort outstanding ADISC */
07951076 1296 lpfc_els_abort(phba, ndlp);
dea3101e
JB		 1297
1298 cmdiocb = (struct lpfc_iocbq *) arg;
1299
0d2b6b83
JS		 1300 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1301 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1302 spin_lock_irq(shost->host_lock);
1303 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1304 spin_unlock_irq(shost->host_lock);
90160e01 1305 if (vport->num_disc_nodes)
0d2b6b83 1306 lpfc_more_adisc(vport);
0d2b6b83
JS		 1307 }
1308 return ndlp->nlp_state;
1309 }
5024ab17 1310 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1311 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1312 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
dea3101e 1313
c9f8735b 1314 return ndlp->nlp_state;
dea3101e
JB		 1315}
1316
1317static uint32_t
2e0fef85
JS		 1318lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1319 void *arg, uint32_t evt)
dea3101e 1320{
2e0fef85 1321 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1322
2e0fef85 1323 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1324 return ndlp->nlp_state;
dea3101e
JB		 1325}
1326
1327static uint32_t
2e0fef85
JS		 1328lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1329 void *arg, uint32_t evt)
dea3101e 1330{
2e0fef85 1331 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1332 struct lpfc_iocbq *cmdiocb;
1333
1334 cmdiocb = (struct lpfc_iocbq *) arg;
1335
1336 /* software abort outstanding ADISC */
07951076 1337 lpfc_els_abort(phba, ndlp);
dea3101e 1338
2e0fef85 1339 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1340 return ndlp->nlp_state;
dea3101e
JB		 1341}
1342
1343static uint32_t
2e0fef85
JS		 1344lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
1345 struct lpfc_nodelist *ndlp,
1346 void *arg, uint32_t evt)
dea3101e
JB		 1347{
1348 struct lpfc_iocbq *cmdiocb;
1349
1350 cmdiocb = (struct lpfc_iocbq *) arg;
1351
2e0fef85 1352 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1353 return ndlp->nlp_state;
dea3101e
JB		 1354}
1355
1356static uint32_t
2e0fef85
JS		 1357lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1358 void *arg, uint32_t evt)
dea3101e
JB		 1359{
1360 struct lpfc_iocbq *cmdiocb;
1361
1362 cmdiocb = (struct lpfc_iocbq *) arg;
1363
1364 /* Treat like rcv logo */
2e0fef85 1365 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
c9f8735b 1366 return ndlp->nlp_state;
dea3101e
JB		 1367}
1368
1369static uint32_t
2e0fef85
JS		 1370lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1371 struct lpfc_nodelist *ndlp,
1372 void *arg, uint32_t evt)
dea3101e 1373{
2e0fef85
JS		 1374 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1375 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1376 struct lpfc_iocbq *cmdiocb, *rspiocb;
1377 IOCB_t *irsp;
1378 ADISC *ap;
6fb120a7 1379 int rc;
dea3101e
JB		 1380
1381 cmdiocb = (struct lpfc_iocbq *) arg;
1382 rspiocb = cmdiocb->context_un.rsp_iocb;
1383
1384 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1385 irsp = &rspiocb->iocb;
1386
1387 if ((irsp->ulpStatus) ||
92d7f7b0 1388 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
dea3101e 1389 /* 1 sec timeout */
256ec0d0
JS		 1390 mod_timer(&ndlp->nlp_delayfunc,
1391 jiffies + msecs_to_jiffies(1000));
2e0fef85 1392 spin_lock_irq(shost->host_lock);
dea3101e 1393 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1394 spin_unlock_irq(shost->host_lock);
5024ab17 1395 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1396
2e0fef85
JS		 1397 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1398 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
dea3101e 1399
5024ab17 1400 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1401 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1402 lpfc_unreg_rpi(vport, ndlp);
c9f8735b 1403 return ndlp->nlp_state;
dea3101e 1404 }
5024ab17 1405
6fb120a7 1406 if (phba->sli_rev == LPFC_SLI_REV4) {
6b5151fd 1407 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL);
6fb120a7
JS		 1408 if (rc) {
1409 /* Stay in state and retry. */
1410 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1411 return ndlp->nlp_state;
1412 }
1413 }
1414
2501322e 1415 if (ndlp->nlp_type & NLP_FCP_TARGET) {
5024ab17 1416 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85 1417 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
2501322e 1418 } else {
5024ab17 1419 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85 1420 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2501322e 1421 }
6fb120a7 1422
c9f8735b 1423 return ndlp->nlp_state;
dea3101e
JB		 1424}
1425
1426static uint32_t
2e0fef85
JS		 1427lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1428 void *arg, uint32_t evt)
dea3101e 1429{
2e0fef85
JS		 1430 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1431
1432 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1433 spin_lock_irq(shost->host_lock);
a0f9b48d 1434 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1435 spin_unlock_irq(shost->host_lock);
a0f9b48d 1436 return ndlp->nlp_state;
2e0fef85 1437 } else {
a0f9b48d 1438 /* software abort outstanding ADISC */
2e0fef85 1439 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1440
2e0fef85 1441 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1442 return NLP_STE_FREED_NODE;
1443 }
dea3101e
JB		 1444}
1445
1446static uint32_t
2e0fef85
JS		 1447lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1448 struct lpfc_nodelist *ndlp,
1449 void *arg,
1450 uint32_t evt)
dea3101e 1451{
2e0fef85
JS		 1452 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1453 struct lpfc_hba *phba = vport->phba;
1454
92d7f7b0
JS		 1455 /* Don't do anything that will mess up processing of the
1456 * previous RSCN.
1457 */
1458 if (vport->fc_flag & FC_RSCN_DEFERRED)
1459 return ndlp->nlp_state;
1460
dea3101e 1461 /* software abort outstanding ADISC */
07951076 1462 lpfc_els_abort(phba, ndlp);
dea3101e 1463
5024ab17 1464 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1465 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1466 spin_lock_irq(shost->host_lock);
a0f9b48d 1467 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1468 spin_unlock_irq(shost->host_lock);
92d7f7b0 1469 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1470 return ndlp->nlp_state;
dea3101e
JB		 1471}
1472
1473static uint32_t
2e0fef85
JS		 1474lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1475 struct lpfc_nodelist *ndlp,
1476 void *arg,
dea3101e
JB		 1477 uint32_t evt)
1478{
2e0fef85 1479 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1480
2e0fef85 1481 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1482 return ndlp->nlp_state;
dea3101e
JB		 1483}
1484
1485static uint32_t
2e0fef85
JS		 1486lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1487 struct lpfc_nodelist *ndlp,
1488 void *arg,
dea3101e
JB		 1489 uint32_t evt)
1490{
2e0fef85 1491 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1492
2e0fef85 1493 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1494 return ndlp->nlp_state;
dea3101e
JB		 1495}
1496
1497static uint32_t
2e0fef85
JS		 1498lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1499 struct lpfc_nodelist *ndlp,
1500 void *arg,
dea3101e
JB		 1501 uint32_t evt)
1502{
2e0fef85
JS		 1503 struct lpfc_hba *phba = vport->phba;
1504 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
7054a606
JS		 1505 LPFC_MBOXQ_t *mb;
1506 LPFC_MBOXQ_t *nextmb;
1507 struct lpfc_dmabuf *mp;
dea3101e
JB		 1508
1509 cmdiocb = (struct lpfc_iocbq *) arg;
1510
7054a606
JS		 1511 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1512 if ((mb = phba->sli.mbox_active)) {
04c68496 1513 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
7054a606 1514 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
de96e9c5 1515 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
92d7f7b0 1516 lpfc_nlp_put(ndlp);
7054a606
JS		 1517 mb->context2 = NULL;
1518 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1519 }
1520 }
1521
2e0fef85 1522 spin_lock_irq(&phba->hbalock);
7054a606 1523 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
04c68496 1524 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
7054a606
JS		 1525 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1526 mp = (struct lpfc_dmabuf *) (mb->context1);
1527 if (mp) {
98c9ea5c 1528 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
7054a606
JS		 1529 kfree(mp);
1530 }
de96e9c5 1531 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
92d7f7b0 1532 lpfc_nlp_put(ndlp);
7054a606 1533 list_del(&mb->list);
5ffc266e 1534 phba->sli.mboxq_cnt--;
7054a606
JS		 1535 mempool_free(mb, phba->mbox_mem_pool);
1536 }
1537 }
2e0fef85 1538 spin_unlock_irq(&phba->hbalock);
7054a606 1539
2e0fef85 1540 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1541 return ndlp->nlp_state;
dea3101e
JB		 1542}
1543
1544static uint32_t
2e0fef85
JS		 1545lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1546 struct lpfc_nodelist *ndlp,
1547 void *arg,
dea3101e
JB		 1548 uint32_t evt)
1549{
2e0fef85 1550 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1551
2e0fef85 1552 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1553 return ndlp->nlp_state;
dea3101e
JB		 1554}
1555
1556static uint32_t
2e0fef85
JS		 1557lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1558 struct lpfc_nodelist *ndlp,
1559 void *arg,
dea3101e
JB		 1560 uint32_t evt)
1561{
1562 struct lpfc_iocbq *cmdiocb;
1563
1564 cmdiocb = (struct lpfc_iocbq *) arg;
51ef4c26 1565 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1566 return ndlp->nlp_state;
dea3101e
JB		 1567}
1568
1569static uint32_t
2e0fef85
JS		 1570lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1571 struct lpfc_nodelist *ndlp,
1572 void *arg,
1573 uint32_t evt)
dea3101e 1574{
2e0fef85 1575 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 1576 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
04c68496 1577 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85 1578 uint32_t did = mb->un.varWords[1];
dea3101e 1579
dea3101e
JB		 1580 if (mb->mbxStatus) {
1581 /* RegLogin failed */
e8b62011 1582 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
6d368e53
JS		 1583 "0246 RegLogin failed Data: x%x x%x x%x x%x "
1584 "x%x\n",
1585 did, mb->mbxStatus, vport->port_state,
1586 mb->un.varRegLogin.vpi,
1587 mb->un.varRegLogin.rpi);
d0e56dad
JS		 1588 /*
1589 * If RegLogin failed due to lack of HBA resources do not
1590 * retry discovery.
1591 */
1592 if (mb->mbxStatus == MBXERR_RPI_FULL) {
87af33fe
JS		 1593 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1594 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
d0e56dad
JS		 1595 return ndlp->nlp_state;
1596 }
1597
2e0fef85 1598 /* Put ndlp in npr state set plogi timer for 1 sec */
256ec0d0
JS		 1599 mod_timer(&ndlp->nlp_delayfunc,
1600 jiffies + msecs_to_jiffies(1000 * 1));
2e0fef85 1601 spin_lock_irq(shost->host_lock);
dea3101e 1602 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1603 spin_unlock_irq(shost->host_lock);
5024ab17 1604 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1605
2e0fef85 1606 lpfc_issue_els_logo(vport, ndlp, 0);
5024ab17 1607 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85 1608 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
c9f8735b 1609 return ndlp->nlp_state;
dea3101e
JB		 1610 }
1611
6d368e53
JS		 1612 /* SLI4 ports have preallocated logical rpis. */
1613 if (vport->phba->sli_rev < LPFC_SLI_REV4)
1614 ndlp->nlp_rpi = mb->un.varWords[0];
1615
4042629e 1616 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
dea3101e
JB		 1617
1618 /* Only if we are not a fabric nport do we issue PRLI */
1619 if (!(ndlp->nlp_type & NLP_FABRIC)) {
5024ab17 1620 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85
JS		 1621 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1622 lpfc_issue_els_prli(vport, ndlp, 0);
dea3101e 1623 } else {
5024ab17 1624 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85 1625 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1626 }
c9f8735b 1627 return ndlp->nlp_state;
dea3101e
JB		 1628}
1629
1630static uint32_t
2e0fef85
JS		 1631lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1632 struct lpfc_nodelist *ndlp,
1633 void *arg,
dea3101e
JB		 1634 uint32_t evt)
1635{
2e0fef85
JS		 1636 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1637
1638 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1639 spin_lock_irq(shost->host_lock);
a0f9b48d 1640 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1641 spin_unlock_irq(shost->host_lock);
a0f9b48d 1642 return ndlp->nlp_state;
2e0fef85
JS		 1643 } else {
1644 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1645 return NLP_STE_FREED_NODE;
1646 }
dea3101e
JB		 1647}
1648
1649static uint32_t
2e0fef85
JS		 1650lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1651 struct lpfc_nodelist *ndlp,
1652 void *arg,
1653 uint32_t evt)
dea3101e 1654{
2e0fef85
JS		 1655 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1656
92d7f7b0
JS		 1657 /* Don't do anything that will mess up processing of the
1658 * previous RSCN.
1659 */
1660 if (vport->fc_flag & FC_RSCN_DEFERRED)
1661 return ndlp->nlp_state;
1662
5024ab17 1663 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85
JS		 1664 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1665 spin_lock_irq(shost->host_lock);
ffc95493 1666 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL;
a0f9b48d 1667 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1668 spin_unlock_irq(shost->host_lock);
92d7f7b0 1669 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1670 return ndlp->nlp_state;
dea3101e
JB		 1671}
1672
1673static uint32_t
2e0fef85
JS		 1674lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1675 void *arg, uint32_t evt)
dea3101e
JB		 1676{
1677 struct lpfc_iocbq *cmdiocb;
1678
1679 cmdiocb = (struct lpfc_iocbq *) arg;
1680
2e0fef85 1681 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1682 return ndlp->nlp_state;
dea3101e
JB		 1683}
1684
1685static uint32_t
2e0fef85
JS		 1686lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1687 void *arg, uint32_t evt)
dea3101e 1688{
2e0fef85 1689 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1690
2e0fef85 1691 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1692 return ndlp->nlp_state;
dea3101e
JB		 1693}
1694
1695static uint32_t
2e0fef85
JS		 1696lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1697 void *arg, uint32_t evt)
dea3101e 1698{
2e0fef85 1699 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e
JB		 1700
1701 /* Software abort outstanding PRLI before sending acc */
2e0fef85 1702 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1703
2e0fef85 1704 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1705 return ndlp->nlp_state;
dea3101e
JB		 1706}
1707
1708static uint32_t
2e0fef85
JS		 1709lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1710 void *arg, uint32_t evt)
dea3101e 1711{
2e0fef85 1712 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1713
2e0fef85 1714 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1715 return ndlp->nlp_state;
dea3101e
JB		 1716}
1717
1718/* This routine is envoked when we rcv a PRLO request from a nport
1719 * we are logged into. We should send back a PRLO rsp setting the
1720 * appropriate bits.
1721 * NEXT STATE = PRLI_ISSUE
1722 */
1723static uint32_t
2e0fef85
JS		 1724lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1725 void *arg, uint32_t evt)
dea3101e 1726{
2e0fef85 1727 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1728
51ef4c26 1729 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1730 return ndlp->nlp_state;
dea3101e
JB		 1731}
1732
1733static uint32_t
2e0fef85
JS		 1734lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1735 void *arg, uint32_t evt)
dea3101e 1736{
92d7f7b0 1737 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 1738 struct lpfc_iocbq *cmdiocb, *rspiocb;
2e0fef85 1739 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1740 IOCB_t *irsp;
1741 PRLI *npr;
1742
1743 cmdiocb = (struct lpfc_iocbq *) arg;
1744 rspiocb = cmdiocb->context_un.rsp_iocb;
1745 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1746
1747 irsp = &rspiocb->iocb;
1748 if (irsp->ulpStatus) {
858c9f6c 1749 if ((vport->port_type == LPFC_NPIV_PORT) &&
3de2a653 1750 vport->cfg_restrict_login) {
858c9f6c
JS		 1751 goto out;
1752 }
5024ab17 1753 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2e0fef85 1754 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
c9f8735b 1755 return ndlp->nlp_state;
dea3101e
JB		 1756 }
1757
1758 /* Check out PRLI rsp */
1759 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1760 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
3cb01c57 1761 ndlp->nlp_flag &= ~NLP_FIRSTBURST;
dea3101e
JB		 1762 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1763 (npr->prliType == PRLI_FCP_TYPE)) {
1764 if (npr->initiatorFunc)
1765 ndlp->nlp_type |= NLP_FCP_INITIATOR;
3cb01c57 1766 if (npr->targetFunc) {
dea3101e 1767 ndlp->nlp_type |= NLP_FCP_TARGET;
3cb01c57
JS		 1768 if (npr->writeXferRdyDis)
1769 ndlp->nlp_flag |= NLP_FIRSTBURST;
1770 }
dea3101e
JB		 1771 if (npr->Retry)
1772 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1773 }
92d7f7b0
JS		 1774 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1775 (vport->port_type == LPFC_NPIV_PORT) &&
3de2a653 1776 vport->cfg_restrict_login) {
858c9f6c 1777out:
92d7f7b0
JS		 1778 spin_lock_irq(shost->host_lock);
1779 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1780 spin_unlock_irq(shost->host_lock);
1781 lpfc_issue_els_logo(vport, ndlp, 0);
1782
1783 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
87af33fe 1784 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
92d7f7b0
JS		 1785 return ndlp->nlp_state;
1786 }
dea3101e 1787
5024ab17 1788 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
92d7f7b0
JS		 1789 if (ndlp->nlp_type & NLP_FCP_TARGET)
1790 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1791 else
1792 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
c9f8735b 1793 return ndlp->nlp_state;
dea3101e
JB		 1794}
1795
1796/*! lpfc_device_rm_prli_issue
92d7f7b0
JS		 1797 *
1798 * \pre
1799 * \post
1800 * \param phba
1801 * \param ndlp
1802 * \param arg
1803 * \param evt
1804 * \return uint32_t
1805 *
1806 * \b Description:
1807 * This routine is envoked when we a request to remove a nport we are in the
1808 * process of PRLIing. We should software abort outstanding prli, unreg
1809 * login, send a logout. We will change node state to UNUSED_NODE, put it
1810 * on plogi list so it can be freed when LOGO completes.
1811 *
1812 */
1813
dea3101e 1814static uint32_t
2e0fef85
JS		 1815lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1816 void *arg, uint32_t evt)
dea3101e 1817{
2e0fef85
JS		 1818 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1819
1820 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1821 spin_lock_irq(shost->host_lock);
a0f9b48d 1822 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1823 spin_unlock_irq(shost->host_lock);
a0f9b48d 1824 return ndlp->nlp_state;
2e0fef85 1825 } else {
a0f9b48d 1826 /* software abort outstanding PLOGI */
2e0fef85 1827 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1828
2e0fef85 1829 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1830 return NLP_STE_FREED_NODE;
1831 }
dea3101e
JB		 1832}
1833
1834
1835/*! lpfc_device_recov_prli_issue
92d7f7b0
JS		 1836 *
1837 * \pre
1838 * \post
1839 * \param phba
1840 * \param ndlp
1841 * \param arg
1842 * \param evt
1843 * \return uint32_t
1844 *
1845 * \b Description:
1846 * The routine is envoked when the state of a device is unknown, like
1847 * during a link down. We should remove the nodelist entry from the
1848 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1849 * outstanding PRLI command, then free the node entry.
1850 */
dea3101e 1851static uint32_t
2e0fef85
JS		 1852lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1853 struct lpfc_nodelist *ndlp,
1854 void *arg,
1855 uint32_t evt)
dea3101e 1856{
2e0fef85
JS		 1857 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1858 struct lpfc_hba *phba = vport->phba;
1859
92d7f7b0
JS		 1860 /* Don't do anything that will mess up processing of the
1861 * previous RSCN.
1862 */
1863 if (vport->fc_flag & FC_RSCN_DEFERRED)
1864 return ndlp->nlp_state;
1865
dea3101e 1866 /* software abort outstanding PRLI */
07951076 1867 lpfc_els_abort(phba, ndlp);
dea3101e 1868
5024ab17 1869 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2e0fef85
JS		 1870 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1871 spin_lock_irq(shost->host_lock);
a0f9b48d 1872 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1873 spin_unlock_irq(shost->host_lock);
92d7f7b0 1874 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1875 return ndlp->nlp_state;
dea3101e
JB		 1876}
1877
086a345f
JS		 1878static uint32_t
1879lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1880 void *arg, uint32_t evt)
1881{
1882 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1883 struct ls_rjt stat;
1884
1885 memset(&stat, 0, sizeof(struct ls_rjt));
1886 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1887 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1888 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1889 return ndlp->nlp_state;
1890}
1891
1892static uint32_t
1893lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1894 void *arg, uint32_t evt)
1895{
1896 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1897 struct ls_rjt stat;
1898
1899 memset(&stat, 0, sizeof(struct ls_rjt));
1900 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1901 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1902 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1903 return ndlp->nlp_state;
1904}
1905
1906static uint32_t
1907lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1908 void *arg, uint32_t evt)
1909{
1910 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1911 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1912
1913 spin_lock_irq(shost->host_lock);
7c5e518c 1914 ndlp->nlp_flag |= NLP_LOGO_ACC;
086a345f
JS		 1915 spin_unlock_irq(shost->host_lock);
1916 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
1917 return ndlp->nlp_state;
1918}
1919
1920static uint32_t
1921lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1922 void *arg, uint32_t evt)
1923{
1924 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1925 struct ls_rjt stat;
1926
1927 memset(&stat, 0, sizeof(struct ls_rjt));
1928 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1929 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1930 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1931 return ndlp->nlp_state;
1932}
1933
1934static uint32_t
1935lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1936 void *arg, uint32_t evt)
1937{
1938 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
1939 struct ls_rjt stat;
1940
1941 memset(&stat, 0, sizeof(struct ls_rjt));
1942 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1943 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
1944 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
1945 return ndlp->nlp_state;
1946}
1947
1948static uint32_t
1949lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1950 void *arg, uint32_t evt)
1951{
1952 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1953
1954 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE;
1955 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1956 spin_lock_irq(shost->host_lock);
1957 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
1958 spin_unlock_irq(shost->host_lock);
1959 lpfc_disc_set_adisc(vport, ndlp);
1960 return ndlp->nlp_state;
1961}
1962
1963static uint32_t
1964lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1965 void *arg, uint32_t evt)
1966{
1967 /*
1968 * Take no action. If a LOGO is outstanding, then possibly DevLoss has
1969 * timed out and is calling for Device Remove. In this case, the LOGO
1970 * must be allowed to complete in state LOGO_ISSUE so that the rpi
1971 * and other NLP flags are correctly cleaned up.
1972 */
1973 return ndlp->nlp_state;
1974}
1975
1976static uint32_t
1977lpfc_device_recov_logo_issue(struct lpfc_vport *vport,
1978 struct lpfc_nodelist *ndlp,
1979 void *arg, uint32_t evt)
1980{
1981 /*
1982 * Device Recovery events have no meaning for a node with a LOGO
1983 * outstanding. The LOGO has to complete first and handle the
1984 * node from that point.
1985 */
1986 return ndlp->nlp_state;
1987}
1988
dea3101e 1989static uint32_t
2e0fef85
JS		 1990lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1991 void *arg, uint32_t evt)
dea3101e 1992{
2e0fef85 1993 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1994
2e0fef85 1995 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1996 return ndlp->nlp_state;
dea3101e
JB		 1997}
1998
1999static uint32_t
2e0fef85
JS		 2000lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2001 void *arg, uint32_t evt)
dea3101e 2002{
2e0fef85 2003 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2004
2e0fef85
JS		 2005 lpfc_rcv_prli(vport, ndlp, cmdiocb);
2006 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 2007 return ndlp->nlp_state;
dea3101e
JB		 2008}
2009
2010static uint32_t
2e0fef85
JS		 2011lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2012 void *arg, uint32_t evt)
dea3101e 2013{
2e0fef85 2014 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2015
2e0fef85 2016 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 2017 return ndlp->nlp_state;
dea3101e
JB		 2018}
2019
2020static uint32_t
2e0fef85
JS		 2021lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2022 void *arg, uint32_t evt)
dea3101e 2023{
2e0fef85 2024 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2025
2e0fef85 2026 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 2027 return ndlp->nlp_state;
dea3101e
JB		 2028}
2029
2030static uint32_t
2e0fef85
JS		 2031lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2032 void *arg, uint32_t evt)
dea3101e 2033{
2e0fef85 2034 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2035
51ef4c26 2036 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 2037 return ndlp->nlp_state;
dea3101e
JB		 2038}
2039
2040static uint32_t
2e0fef85
JS		 2041lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
2042 struct lpfc_nodelist *ndlp,
2043 void *arg,
2044 uint32_t evt)
dea3101e 2045{
2e0fef85
JS		 2046 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2047
5024ab17 2048 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
2e0fef85
JS		 2049 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2050 spin_lock_irq(shost->host_lock);
a0f9b48d 2051 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85
JS		 2052 spin_unlock_irq(shost->host_lock);
2053 lpfc_disc_set_adisc(vport, ndlp);
dea3101e 2054
c9f8735b 2055 return ndlp->nlp_state;
dea3101e
JB		 2056}
2057
2058static uint32_t
2e0fef85
JS		 2059lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2060 void *arg, uint32_t evt)
dea3101e 2061{
2e0fef85 2062 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2063
2e0fef85 2064 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 2065 return ndlp->nlp_state;
dea3101e
JB		 2066}
2067
2068static uint32_t
2e0fef85
JS		 2069lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2070 void *arg, uint32_t evt)
dea3101e 2071{
2e0fef85 2072 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2073
2e0fef85 2074 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 2075 return ndlp->nlp_state;
dea3101e
JB		 2076}
2077
2078static uint32_t
2e0fef85
JS		 2079lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2080 void *arg, uint32_t evt)
dea3101e 2081{
2e0fef85 2082 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2083
2e0fef85 2084 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 2085 return ndlp->nlp_state;
dea3101e
JB		 2086}
2087
2088static uint32_t
2e0fef85
JS		 2089lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
2090 struct lpfc_nodelist *ndlp,
2091 void *arg, uint32_t evt)
dea3101e 2092{
2e0fef85 2093 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2094
2e0fef85 2095 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 2096 return ndlp->nlp_state;
dea3101e
JB		 2097}
2098
2099static uint32_t
2e0fef85
JS		 2100lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2101 void *arg, uint32_t evt)
dea3101e 2102{
2e0fef85
JS		 2103 struct lpfc_hba *phba = vport->phba;
2104 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e
JB		 2105
2106 /* flush the target */
51ef4c26
JS		 2107 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
2108 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
dea3101e
JB		 2109
2110 /* Treat like rcv logo */
2e0fef85 2111 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
c9f8735b 2112 return ndlp->nlp_state;
dea3101e
JB		 2113}
2114
2115static uint32_t
2e0fef85
JS		 2116lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
2117 struct lpfc_nodelist *ndlp,
2118 void *arg,
2119 uint32_t evt)
dea3101e 2120{
2e0fef85
JS		 2121 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2122
5024ab17 2123 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
2e0fef85
JS		 2124 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2125 spin_lock_irq(shost->host_lock);
a0f9b48d 2126 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85
JS		 2127 spin_unlock_irq(shost->host_lock);
2128 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 2129 return ndlp->nlp_state;
dea3101e
JB		 2130}
2131
2132static uint32_t
2e0fef85
JS		 2133lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2134 void *arg, uint32_t evt)
dea3101e 2135{
2e0fef85
JS		 2136 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2137 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e
JB		 2138
2139 /* Ignore PLOGI if we have an outstanding LOGO */
0d2b6b83 2140 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
c9f8735b 2141 return ndlp->nlp_state;
2e0fef85 2142 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
0d2b6b83 2143 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2e0fef85 2144 spin_lock_irq(shost->host_lock);
0d2b6b83 2145 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
2e0fef85 2146 spin_unlock_irq(shost->host_lock);
0d2b6b83
JS		 2147 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
2148 /* send PLOGI immediately, move to PLOGI issue state */
2149 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2150 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2151 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2152 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2153 }
dea3101e 2154 }
c9f8735b 2155 return ndlp->nlp_state;
dea3101e
JB		 2156}
2157
2158static uint32_t
2e0fef85
JS		 2159lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2160 void *arg, uint32_t evt)
dea3101e 2161{
2e0fef85
JS		 2162 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2163 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2164 struct ls_rjt stat;
dea3101e
JB		 2165
2166 memset(&stat, 0, sizeof (struct ls_rjt));
2167 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2168 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
858c9f6c 2169 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
dea3101e
JB		 2170
2171 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2172 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2e0fef85 2173 spin_lock_irq(shost->host_lock);
c9f8735b 2174 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 2175 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 2176 spin_unlock_irq(shost->host_lock);
2177 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2178 lpfc_issue_els_adisc(vport, ndlp, 0);
dea3101e 2179 } else {
5024ab17 2180 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 2181 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2182 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e
JB		 2183 }
2184 }
c9f8735b 2185 return ndlp->nlp_state;
dea3101e
JB		 2186}
2187
2188static uint32_t
2e0fef85
JS		 2189lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2190 void *arg, uint32_t evt)
dea3101e 2191{
2e0fef85 2192 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2193
2e0fef85 2194 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 2195 return ndlp->nlp_state;
dea3101e
JB		 2196}
2197
2198static uint32_t
2e0fef85
JS		 2199lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2200 void *arg, uint32_t evt)
dea3101e 2201{
2e0fef85 2202 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2203
2e0fef85 2204 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
33ccf8d1
JS		 2205 /*
2206 * Do not start discovery if discovery is about to start
2207 * or discovery in progress for this node. Starting discovery
2208 * here will affect the counting of discovery threads.
2209 */
2fb9bd8b 2210 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
92d7f7b0 2211 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
dea3101e 2212 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
92d7f7b0 2213 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 2214 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 2215 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2216 lpfc_issue_els_adisc(vport, ndlp, 0);
dea3101e 2217 } else {
5024ab17 2218 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 2219 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2220 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e
JB		 2221 }
2222 }
c9f8735b 2223 return ndlp->nlp_state;
dea3101e
JB		 2224}
2225
2226static uint32_t
2e0fef85
JS		 2227lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2228 void *arg, uint32_t evt)
dea3101e 2229{
2e0fef85
JS		 2230 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2231 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2232
2e0fef85 2233 spin_lock_irq(shost->host_lock);
c9f8735b 2234 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 2235 spin_unlock_irq(shost->host_lock);
c9f8735b 2236
51ef4c26 2237 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 2238
2e0fef85 2239 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
256ec0d0
JS		 2240 mod_timer(&ndlp->nlp_delayfunc,
2241 jiffies + msecs_to_jiffies(1000 * 1));
2e0fef85 2242 spin_lock_irq(shost->host_lock);
c9f8735b
JW		 2243 ndlp->nlp_flag |= NLP_DELAY_TMO;
2244 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 2245 spin_unlock_irq(shost->host_lock);
5024ab17 2246 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b 2247 } else {
2e0fef85 2248 spin_lock_irq(shost->host_lock);
c9f8735b 2249 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 2250 spin_unlock_irq(shost->host_lock);
dea3101e 2251 }
c9f8735b
JW		 2252 return ndlp->nlp_state;
2253}
dea3101e 2254
c9f8735b 2255static uint32_t
2e0fef85
JS		 2256lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2257 void *arg, uint32_t evt)
c9f8735b
JW		 2258{
2259 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 2260 IOCB_t *irsp;
8b455cf3 2261 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
c9f8735b
JW		 2262
2263 cmdiocb = (struct lpfc_iocbq *) arg;
2264 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 2265
2266 irsp = &rspiocb->iocb;
2267 if (irsp->ulpStatus) {
8b455cf3 2268 spin_lock_irq(shost->host_lock);
a8adb832 2269 ndlp->nlp_flag |= NLP_DEFER_RM;
8b455cf3 2270 spin_unlock_irq(shost->host_lock);
a0f9b48d
JS		 2271 return NLP_STE_FREED_NODE;
2272 }
c9f8735b
JW		 2273 return ndlp->nlp_state;
2274}
2275
2276static uint32_t
2e0fef85
JS		 2277lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2278 void *arg, uint32_t evt)
c9f8735b
JW		 2279{
2280 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 2281 IOCB_t *irsp;
c9f8735b
JW		 2282
2283 cmdiocb = (struct lpfc_iocbq *) arg;
2284 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 2285
2286 irsp = &rspiocb->iocb;
2287 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2e0fef85 2288 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 2289 return NLP_STE_FREED_NODE;
2290 }
c9f8735b 2291 return ndlp->nlp_state;
dea3101e
JB		 2292}
2293
2294static uint32_t
2e0fef85
JS		 2295lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2296 void *arg, uint32_t evt)
dea3101e 2297{
d7c255b2 2298 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
086a345f
JS		 2299
2300 /* For the fabric port just clear the fc flags. */
d7c255b2
JS		 2301 if (ndlp->nlp_DID == Fabric_DID) {
2302 spin_lock_irq(shost->host_lock);
2303 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2304 spin_unlock_irq(shost->host_lock);
2305 }
2e0fef85 2306 lpfc_unreg_rpi(vport, ndlp);
c9f8735b
JW		 2307 return ndlp->nlp_state;
2308}
2309
2310static uint32_t
2e0fef85
JS		 2311lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2312 void *arg, uint32_t evt)
c9f8735b
JW		 2313{
2314 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 2315 IOCB_t *irsp;
c9f8735b
JW		 2316
2317 cmdiocb = (struct lpfc_iocbq *) arg;
2318 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 2319
2320 irsp = &rspiocb->iocb;
2321 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2e0fef85 2322 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 2323 return NLP_STE_FREED_NODE;
2324 }
c9f8735b 2325 return ndlp->nlp_state;
dea3101e
JB		 2326}
2327
2328static uint32_t
2e0fef85
JS		 2329lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
2330 struct lpfc_nodelist *ndlp,
2331 void *arg, uint32_t evt)
dea3101e 2332{
2e0fef85 2333 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
04c68496 2334 MAILBOX_t *mb = &pmb->u.mb;
dea3101e 2335
04c68496 2336 if (!mb->mbxStatus) {
6d368e53
JS		 2337 /* SLI4 ports have preallocated logical rpis. */
2338 if (vport->phba->sli_rev < LPFC_SLI_REV4)
2339 ndlp->nlp_rpi = mb->un.varWords[0];
4042629e 2340 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
4b7789b7
JS		 2341 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
2342 lpfc_unreg_rpi(vport, ndlp);
2343 }
04c68496 2344 } else {
a0f9b48d 2345 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
2e0fef85 2346 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 2347 return NLP_STE_FREED_NODE;
2348 }
2349 }
c9f8735b 2350 return ndlp->nlp_state;
dea3101e
JB		 2351}
2352
2353static uint32_t
2e0fef85
JS		 2354lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2355 void *arg, uint32_t evt)
dea3101e 2356{
2e0fef85
JS		 2357 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2358
a0f9b48d 2359 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2e0fef85 2360 spin_lock_irq(shost->host_lock);
a0f9b48d 2361 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 2362 spin_unlock_irq(shost->host_lock);
a0f9b48d
JS		 2363 return ndlp->nlp_state;
2364 }
2e0fef85 2365 lpfc_drop_node(vport, ndlp);
c9f8735b 2366 return NLP_STE_FREED_NODE;
dea3101e
JB		 2367}
2368
2369static uint32_t
2e0fef85
JS		 2370lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2371 void *arg, uint32_t evt)
dea3101e 2372{
2e0fef85
JS		 2373 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2374
92d7f7b0
JS		 2375 /* Don't do anything that will mess up processing of the
2376 * previous RSCN.
2377 */
2378 if (vport->fc_flag & FC_RSCN_DEFERRED)
2379 return ndlp->nlp_state;
2380
eaf15d5b 2381 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2e0fef85 2382 spin_lock_irq(shost->host_lock);
a0f9b48d 2383 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 2384 spin_unlock_irq(shost->host_lock);
c9f8735b 2385 return ndlp->nlp_state;
dea3101e
JB		 2386}
2387
2388
2389/* This next section defines the NPort Discovery State Machine */
2390
2391/* There are 4 different double linked lists nodelist entries can reside on.
2392 * The plogi list and adisc list are used when Link Up discovery or RSCN
2393 * processing is needed. Each list holds the nodes that we will send PLOGI
2394 * or ADISC on. These lists will keep track of what nodes will be effected
2395 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
2396 * The unmapped_list will contain all nodes that we have successfully logged
2397 * into at the Fibre Channel level. The mapped_list will contain all nodes
2398 * that are mapped FCP targets.
2399 */
2400/*
2401 * The bind list is a list of undiscovered (potentially non-existent) nodes
2402 * that we have saved binding information on. This information is used when
2403 * nodes transition from the unmapped to the mapped list.
2404 */
2405/* For UNUSED_NODE state, the node has just been allocated .
2406 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
2407 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
2408 * and put on the unmapped list. For ADISC processing, the node is taken off
2409 * the ADISC list and placed on either the mapped or unmapped list (depending
2410 * on its previous state). Once on the unmapped list, a PRLI is issued and the
2411 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
2412 * changed to UNMAPPED_NODE. If the completion indicates a mapped
2413 * node, the node is taken off the unmapped list. The binding list is checked
2414 * for a valid binding, or a binding is automatically assigned. If binding
2415 * assignment is unsuccessful, the node is left on the unmapped list. If
2416 * binding assignment is successful, the associated binding list entry (if
2417 * any) is removed, and the node is placed on the mapped list.
2418 */
2419/*
2420 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
c01f3208 2421 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
dea3101e
JB		 2422 * expire, all effected nodes will receive a DEVICE_RM event.
2423 */
2424/*
2425 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
2426 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
2427 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
2428 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
2429 * we will first process the ADISC list. 32 entries are processed initially and
2430 * ADISC is initited for each one. Completions / Events for each node are
2431 * funnelled thru the state machine. As each node finishes ADISC processing, it
2432 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
2433 * waiting, and the ADISC list count is identically 0, then we are done. For
2434 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
2435 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
2436 * list. 32 entries are processed initially and PLOGI is initited for each one.
2437 * Completions / Events for each node are funnelled thru the state machine. As
2438 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
2439 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
2440 * indentically 0, then we are done. We have now completed discovery / RSCN
2441 * handling. Upon completion, ALL nodes should be on either the mapped or
2442 * unmapped lists.
2443 */
2444
2445static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
2e0fef85 2446 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
dea3101e
JB		 2447 /* Action routine Event Current State */
2448 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2449 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2450 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2451 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2452 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2453 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2454 lpfc_disc_illegal, /* CMPL_PLOGI */
2455 lpfc_disc_illegal, /* CMPL_PRLI */
2456 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2457 lpfc_disc_illegal, /* CMPL_ADISC */
2458 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2459 lpfc_device_rm_unused_node, /* DEVICE_RM */
df9e1b59 2460 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */
dea3101e
JB		 2461
2462 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
92d7f7b0 2463 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
c9f8735b 2464 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
dea3101e
JB		 2465 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2466 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2467 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2468 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2469 lpfc_disc_illegal, /* CMPL_PRLI */
0ff10d46 2470 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
dea3101e 2471 lpfc_disc_illegal, /* CMPL_ADISC */
0ff10d46 2472 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
dea3101e
JB		 2473 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2474 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2475
2476 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
2477 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
2478 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
2479 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
2480 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
2481 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
2482 lpfc_disc_illegal, /* CMPL_PLOGI */
2483 lpfc_disc_illegal, /* CMPL_PRLI */
2484 lpfc_disc_illegal, /* CMPL_LOGO */
2485 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
2486 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2487 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
2488 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
2489
2490 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
2491 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
2492 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
2493 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
2494 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
2495 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
87af33fe 2496 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
dea3101e
JB		 2497 lpfc_disc_illegal, /* CMPL_PRLI */
2498 lpfc_disc_illegal, /* CMPL_LOGO */
2499 lpfc_disc_illegal, /* CMPL_ADISC */
2500 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
2501 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
2502 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
2503
2504 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
2505 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
2506 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
2507 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
2508 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
2509 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
87af33fe 2510 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
dea3101e
JB		 2511 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
2512 lpfc_disc_illegal, /* CMPL_LOGO */
2513 lpfc_disc_illegal, /* CMPL_ADISC */
2514 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2515 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2516 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2517
086a345f
JS		 2518 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */
2519 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */
2520 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */
2521 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */
2522 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */
2523 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */
2524 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2525 lpfc_disc_illegal, /* CMPL_PRLI */
2526 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */
2527 lpfc_disc_illegal, /* CMPL_ADISC */
2528 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2529 lpfc_device_rm_logo_issue, /* DEVICE_RM */
2530 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */
2531
dea3101e
JB		 2532 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2533 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2534 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2535 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2536 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2537 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
2538 lpfc_disc_illegal, /* CMPL_PLOGI */
2539 lpfc_disc_illegal, /* CMPL_PRLI */
2540 lpfc_disc_illegal, /* CMPL_LOGO */
2541 lpfc_disc_illegal, /* CMPL_ADISC */
2542 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2543 lpfc_disc_illegal, /* DEVICE_RM */
2544 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2545
2546 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2547 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2548 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2549 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2550 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2551 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2552 lpfc_disc_illegal, /* CMPL_PLOGI */
2553 lpfc_disc_illegal, /* CMPL_PRLI */
2554 lpfc_disc_illegal, /* CMPL_LOGO */
2555 lpfc_disc_illegal, /* CMPL_ADISC */
2556 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2557 lpfc_disc_illegal, /* DEVICE_RM */
2558 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2559
2560 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2561 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2562 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2563 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2564 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2565 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
c9f8735b
JW		 2566 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2567 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
dea3101e 2568 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
c9f8735b 2569 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
dea3101e
JB		 2570 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2571 lpfc_device_rm_npr_node, /* DEVICE_RM */
2572 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2573};
2574
2575int
2e0fef85
JS		 2576lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2577 void *arg, uint32_t evt)
dea3101e
JB		 2578{
2579 uint32_t cur_state, rc;
2e0fef85 2580 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
dea3101e 2581 uint32_t);
e47c9093
JS		 2582 uint32_t got_ndlp = 0;
2583
2584 if (lpfc_nlp_get(ndlp))
2585 got_ndlp = 1;
dea3101e 2586
dea3101e
JB		 2587 cur_state = ndlp->nlp_state;
2588
2589 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
e8b62011
JS		 2590 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2591 "0211 DSM in event x%x on NPort x%x in "
2592 "state %d Data: x%x\n",
2593 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
dea3101e 2594
858c9f6c
JS		 2595 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2596 "DSM in: evt:%d ste:%d did:x%x",
2597 evt, cur_state, ndlp->nlp_DID);
2598
dea3101e 2599 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2e0fef85 2600 rc = (func) (vport, ndlp, arg, evt);
dea3101e
JB		 2601
2602 /* DSM out state <rc> on NPort <nlp_DID> */
e47c9093
JS		 2603 if (got_ndlp) {
2604 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
e8b62011
JS		 2605 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2606 rc, ndlp->nlp_DID, ndlp->nlp_flag);
dea3101e 2607
e47c9093
JS		 2608 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2609 "DSM out: ste:%d did:x%x flg:x%x",
2610 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2611 /* Decrement the ndlp reference count held for this function */
2612 lpfc_nlp_put(ndlp);
2613 } else {
2614 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
d7c255b2 2615 "0213 DSM out state %d on NPort free\n", rc);
858c9f6c 2616
e47c9093
JS		 2617 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2618 "DSM out: ste:%d did:x%x flg:x%x",
2619 rc, 0, 0);
2620 }
dea3101e 2621
c9f8735b 2622 return rc;
dea3101e 2623}
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