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Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into...
[mirror_ubuntu-artful-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. *
d080abe0
JS		 4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
50611577 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
c44ce173 7 * EMULEX and SLI are trademarks of Emulex. *
d080abe0 8 * www.broadcom.com *
c44ce173 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e
JB		 10 * *
11 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
dea3101e
JB		 22 *******************************************************************/
23
dea3101e
JB		 24#include <linux/blkdev.h>
25#include <linux/pci.h>
5a0e3ad6 26#include <linux/slab.h>
dea3101e
JB		 27#include <linux/interrupt.h>
28
91886523 29#include <scsi/scsi.h>
dea3101e
JB		 30#include <scsi/scsi_device.h>
31#include <scsi/scsi_host.h>
32#include <scsi/scsi_transport_fc.h>
a0f2d3ef
JS		 33#include <scsi/fc/fc_fs.h>
34
35#include <linux/nvme-fc-driver.h>
dea3101e 36
da0436e9 37#include "lpfc_hw4.h"
dea3101e
JB		 38#include "lpfc_hw.h"
39#include "lpfc_sli.h"
da0436e9 40#include "lpfc_sli4.h"
ea2151b4 41#include "lpfc_nl.h"
dea3101e 42#include "lpfc_disc.h"
dea3101e 43#include "lpfc.h"
a0f2d3ef
JS		 44#include "lpfc_scsi.h"
45#include "lpfc_nvme.h"
dea3101e
JB		 46#include "lpfc_logmsg.h"
47#include "lpfc_crtn.h"
92d7f7b0 48#include "lpfc_vport.h"
858c9f6c 49#include "lpfc_debugfs.h"
dea3101e
JB		 50
51
52/* Called to verify a rcv'ed ADISC was intended for us. */
53static int
2e0fef85
JS		 54lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
55 struct lpfc_name *nn, struct lpfc_name *pn)
dea3101e 56{
6b5151fd
JS		 57 /* First, we MUST have a RPI registered */
58 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
59 return 0;
60
dea3101e
JB		 61 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
62 * table entry for that node.
63 */
2e0fef85 64 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)))
c9f8735b 65 return 0;
dea3101e 66
2e0fef85 67 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)))
c9f8735b 68 return 0;
dea3101e
JB		 69
70 /* we match, return success */
c9f8735b 71 return 1;
dea3101e
JB		 72}
73
dea3101e 74int
2e0fef85 75lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
341af102 76 struct serv_parm *sp, uint32_t class, int flogi)
dea3101e 77{
2e0fef85 78 volatile struct serv_parm *hsp = &vport->fc_sparam;
2fb70f79
JSEC		 79 uint16_t hsp_value, ssp_value = 0;
80
81 /*
82 * The receive data field size and buffer-to-buffer receive data field
83 * size entries are 16 bits but are represented as two 8-bit fields in
84 * the driver data structure to account for rsvd bits and other control
85 * bits. Reconstruct and compare the fields as a 16-bit values before
86 * correcting the byte values.
87 */
dea3101e 88 if (sp->cls1.classValid) {
341af102
JS		 89 if (!flogi) {
90 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) |
91 hsp->cls1.rcvDataSizeLsb);
92 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) |
93 sp->cls1.rcvDataSizeLsb);
94 if (!ssp_value)
95 goto bad_service_param;
96 if (ssp_value > hsp_value) {
97 sp->cls1.rcvDataSizeLsb =
98 hsp->cls1.rcvDataSizeLsb;
99 sp->cls1.rcvDataSizeMsb =
100 hsp->cls1.rcvDataSizeMsb;
101 }
2fb70f79 102 }
341af102 103 } else if (class == CLASS1)
92d7f7b0 104 goto bad_service_param;
dea3101e 105 if (sp->cls2.classValid) {
341af102
JS		 106 if (!flogi) {
107 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) |
108 hsp->cls2.rcvDataSizeLsb);
109 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) |
110 sp->cls2.rcvDataSizeLsb);
111 if (!ssp_value)
112 goto bad_service_param;
113 if (ssp_value > hsp_value) {
114 sp->cls2.rcvDataSizeLsb =
115 hsp->cls2.rcvDataSizeLsb;
116 sp->cls2.rcvDataSizeMsb =
117 hsp->cls2.rcvDataSizeMsb;
118 }
2fb70f79 119 }
341af102 120 } else if (class == CLASS2)
92d7f7b0 121 goto bad_service_param;
dea3101e 122 if (sp->cls3.classValid) {
341af102
JS		 123 if (!flogi) {
124 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) |
125 hsp->cls3.rcvDataSizeLsb);
126 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) |
127 sp->cls3.rcvDataSizeLsb);
128 if (!ssp_value)
129 goto bad_service_param;
130 if (ssp_value > hsp_value) {
131 sp->cls3.rcvDataSizeLsb =
132 hsp->cls3.rcvDataSizeLsb;
133 sp->cls3.rcvDataSizeMsb =
134 hsp->cls3.rcvDataSizeMsb;
135 }
2fb70f79 136 }
341af102 137 } else if (class == CLASS3)
92d7f7b0 138 goto bad_service_param;
dea3101e 139
2fb70f79
JSEC		 140 /*
141 * Preserve the upper four bits of the MSB from the PLOGI response.
142 * These bits contain the Buffer-to-Buffer State Change Number
143 * from the target and need to be passed to the FW.
144 */
145 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
146 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
147 if (ssp_value > hsp_value) {
dea3101e 148 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
2fb70f79
JSEC		 149 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
150 (hsp->cmn.bbRcvSizeMsb & 0x0F);
151 }
dea3101e 152
dea3101e
JB		 153 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
154 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
2fb70f79 155 return 1;
92d7f7b0 156bad_service_param:
e8b62011
JS		 157 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
158 "0207 Device %x "
159 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
160 "invalid service parameters. Ignoring device.\n",
161 ndlp->nlp_DID,
162 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
163 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
164 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
165 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
92d7f7b0 166 return 0;
dea3101e
JB		 167}
168
169static void *
2e0fef85 170lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
92d7f7b0 171 struct lpfc_iocbq *rspiocb)
dea3101e
JB		 172{
173 struct lpfc_dmabuf *pcmd, *prsp;
174 uint32_t *lp;
175 void *ptr = NULL;
176 IOCB_t *irsp;
177
178 irsp = &rspiocb->iocb;
179 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
180
181 /* For lpfc_els_abort, context2 could be zero'ed to delay
182 * freeing associated memory till after ABTS completes.
183 */
184 if (pcmd) {
185 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
186 list);
187 if (prsp) {
188 lp = (uint32_t *) prsp->virt;
189 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
190 }
2fe165b6 191 } else {
dea3101e
JB		 192 /* Force ulpStatus error since we are returning NULL ptr */
193 if (!(irsp->ulpStatus)) {
194 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
195 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
196 }
197 ptr = NULL;
198 }
c9f8735b 199 return ptr;
dea3101e
JB		 200}
201
202
2a9bf3d0 203
dea3101e
JB		 204/*
205 * Free resources / clean up outstanding I/Os
206 * associated with a LPFC_NODELIST entry. This
207 * routine effectively results in a "software abort".
208 */
209int
2e0fef85 210lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 211{
2a9bf3d0 212 LIST_HEAD(abort_list);
895427bd 213 struct lpfc_sli_ring *pring;
dea3101e 214 struct lpfc_iocbq *iocb, *next_iocb;
dea3101e 215
895427bd
JS		 216 pring = lpfc_phba_elsring(phba);
217
dea3101e 218 /* Abort outstanding I/O on NPort <nlp_DID> */
e8b62011 219 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
2a9bf3d0 220 "2819 Abort outstanding I/O on NPort x%x "
e8b62011
JS		 221 "Data: x%x x%x x%x\n",
222 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
223 ndlp->nlp_rpi);
0976e1a6 224 /* Clean up all fabric IOs first.*/
92d7f7b0 225 lpfc_fabric_abort_nport(ndlp);
dea3101e 226
0976e1a6
JS		 227 /*
228 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list
229 * of all ELS IOs that need an ABTS. The IOs need to stay on the
230 * txcmplq so that the abort operation completes them successfully.
231 */
2e0fef85 232 spin_lock_irq(&phba->hbalock);
0976e1a6
JS		 233 if (phba->sli_rev == LPFC_SLI_REV4)
234 spin_lock(&pring->ring_lock);
235 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
236 /* Add to abort_list on on NDLP match. */
2a9bf3d0
JS		 237 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
238 list_add_tail(&iocb->dlist, &abort_list);
07951076 239 }
0976e1a6
JS		 240 if (phba->sli_rev == LPFC_SLI_REV4)
241 spin_unlock(&pring->ring_lock);
2e0fef85 242 spin_unlock_irq(&phba->hbalock);
dea3101e 243
0976e1a6 244 /* Abort the targeted IOs and remove them from the abort list. */
2a9bf3d0
JS		 245 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) {
246 spin_lock_irq(&phba->hbalock);
247 list_del_init(&iocb->dlist);
248 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
249 spin_unlock_irq(&phba->hbalock);
250 }
251
0976e1a6
JS		 252 INIT_LIST_HEAD(&abort_list);
253
254 /* Now process the txq */
255 spin_lock_irq(&phba->hbalock);
256 if (phba->sli_rev == LPFC_SLI_REV4)
257 spin_lock(&pring->ring_lock);
258
259 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
260 /* Check to see if iocb matches the nport we are looking for */
261 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
262 list_del_init(&iocb->list);
263 list_add_tail(&iocb->list, &abort_list);
264 }
265 }
266
267 if (phba->sli_rev == LPFC_SLI_REV4)
268 spin_unlock(&pring->ring_lock);
269 spin_unlock_irq(&phba->hbalock);
270
a257bf90 271 /* Cancel all the IOCBs from the completions list */
0976e1a6
JS		 272 lpfc_sli_cancel_iocbs(phba, &abort_list,
273 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
2534ba75 274
0d2b6b83 275 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
c9f8735b 276 return 0;
dea3101e
JB		 277}
278
279static int
2e0fef85 280lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
92d7f7b0 281 struct lpfc_iocbq *cmdiocb)
dea3101e 282{
2e0fef85
JS		 283 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
284 struct lpfc_hba *phba = vport->phba;
dea3101e 285 struct lpfc_dmabuf *pcmd;
ed4afe74 286 uint64_t nlp_portwwn = 0;
dea3101e
JB		 287 uint32_t *lp;
288 IOCB_t *icmd;
289 struct serv_parm *sp;
d6de08cc 290 uint32_t ed_tov;
dea3101e
JB		 291 LPFC_MBOXQ_t *mbox;
292 struct ls_rjt stat;
8c258641 293 uint32_t vid, flag;
dea3101e
JB		 294 int rc;
295
296 memset(&stat, 0, sizeof (struct ls_rjt));
dea3101e
JB		 297 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
298 lp = (uint32_t *) pcmd->virt;
299 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
a8adb832
JS		 300 if (wwn_to_u64(sp->portName.u.wwn) == 0) {
301 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
302 "0140 PLOGI Reject: invalid nname\n");
303 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
304 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
305 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
306 NULL);
307 return 0;
308 }
309 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
310 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
311 "0141 PLOGI Reject: invalid pname\n");
312 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
313 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
314 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
315 NULL);
316 return 0;
317 }
ed4afe74
JS		 318
319 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn);
341af102 320 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) {
dea3101e
JB		 321 /* Reject this request because invalid parameters */
322 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
323 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
858c9f6c
JS		 324 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
325 NULL);
c9f8735b 326 return 0;
dea3101e
JB		 327 }
328 icmd = &cmdiocb->iocb;
329
330 /* PLOGI chkparm OK */
e8b62011 331 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
e74c03c8
JS		 332 "0114 PLOGI chkparm OK Data: x%x x%x x%x "
333 "x%x x%x x%x\n",
e8b62011 334 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
e74c03c8
JS		 335 ndlp->nlp_rpi, vport->port_state,
336 vport->fc_flag);
dea3101e 337
3de2a653 338 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
dea3101e 339 ndlp->nlp_fcp_info |= CLASS2;
ed957684 340 else
dea3101e 341 ndlp->nlp_fcp_info |= CLASS3;
2e0fef85 342
dea3101e
JB		 343 ndlp->nlp_class_sup = 0;
344 if (sp->cls1.classValid)
345 ndlp->nlp_class_sup |= FC_COS_CLASS1;
346 if (sp->cls2.classValid)
347 ndlp->nlp_class_sup |= FC_COS_CLASS2;
348 if (sp->cls3.classValid)
349 ndlp->nlp_class_sup |= FC_COS_CLASS3;
350 if (sp->cls4.classValid)
351 ndlp->nlp_class_sup |= FC_COS_CLASS4;
352 ndlp->nlp_maxframe =
353 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
354
ed4afe74 355 /* if already logged in, do implicit logout */
2fe165b6 356 switch (ndlp->nlp_state) {
dea3101e
JB		 357 case NLP_STE_NPR_NODE:
358 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
359 break;
360 case NLP_STE_REG_LOGIN_ISSUE:
361 case NLP_STE_PRLI_ISSUE:
362 case NLP_STE_UNMAPPED_NODE:
363 case NLP_STE_MAPPED_NODE:
ed4afe74
JS		 364 /* lpfc_plogi_confirm_nport skips fabric did, handle it here */
365 if (!(ndlp->nlp_type & NLP_FABRIC)) {
366 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
367 ndlp, NULL);
368 return 1;
369 }
370 if (nlp_portwwn != 0 &&
371 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn))
372 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
373 "0143 PLOGI recv'd from DID: x%x "
374 "WWPN changed: old %llx new %llx\n",
375 ndlp->nlp_DID,
376 (unsigned long long)nlp_portwwn,
377 (unsigned long long)
378 wwn_to_u64(sp->portName.u.wwn));
379
380 ndlp->nlp_prev_state = ndlp->nlp_state;
381 /* rport needs to be unregistered first */
382 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
383 break;
dea3101e
JB		 384 }
385
939723a4 386 /* Check for Nport to NPort pt2pt protocol */
92d7f7b0
JS		 387 if ((vport->fc_flag & FC_PT2PT) &&
388 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
dea3101e 389 /* rcv'ed PLOGI decides what our NPortId will be */
2e0fef85 390 vport->fc_myDID = icmd->un.rcvels.parmRo;
d6de08cc
JS		 391
392 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
393 if (sp->cmn.edtovResolution) {
394 /* E_D_TOV ticks are in nanoseconds */
395 ed_tov = (phba->fc_edtov + 999999) / 1000000;
dea3101e 396 }
d6de08cc 397
939723a4 398 /*
d6de08cc
JS		 399 * For pt-to-pt, use the larger EDTOV
400 * RATOV = 2 * EDTOV
939723a4 401 */
d6de08cc
JS		 402 if (ed_tov > phba->fc_edtov)
403 phba->fc_edtov = ed_tov;
404 phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
405
406 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
407
408 /* Issue config_link / reg_vfi to account for updated TOV's */
409
939723a4
JS		 410 if (phba->sli_rev == LPFC_SLI_REV4)
411 lpfc_issue_reg_vfi(vport);
d6de08cc
JS		 412 else {
413 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
414 if (mbox == NULL)
415 goto out;
416 lpfc_config_link(phba, mbox);
417 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
418 mbox->vport = vport;
419 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
420 if (rc == MBX_NOT_FINISHED) {
421 mempool_free(mbox, phba->mbox_mem_pool);
422 goto out;
423 }
424 }
dea3101e 425
2e0fef85 426 lpfc_can_disctmo(vport);
dea3101e 427 }
d6de08cc 428
8c258641
JS		 429 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP;
430 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) &&
431 sp->cmn.valid_vendor_ver_level) {
432 vid = be32_to_cpu(sp->un.vv.vid);
433 flag = be32_to_cpu(sp->un.vv.flags);
434 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP))
435 ndlp->nlp_flag |= NLP_SUPPRESS_RSP;
436 }
437
dea3101e 438 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2e0fef85 439 if (!mbox)
dea3101e
JB		 440 goto out;
441
6b5151fd
JS		 442 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */
443 if (phba->sli_rev == LPFC_SLI_REV4)
444 lpfc_unreg_rpi(vport, ndlp);
445
6fb120a7 446 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID,
4042629e 447 (uint8_t *) sp, mbox, ndlp->nlp_rpi);
2e0fef85
JS		 448 if (rc) {
449 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e
JB		 450 goto out;
451 }
452
453 /* ACC PLOGI rsp command needs to execute first,
454 * queue this mbox command to be processed later.
455 */
456 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
329f9bc7
JS		 457 /*
458 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
459 * command issued in lpfc_cmpl_els_acc().
460 */
2e0fef85
JS		 461 mbox->vport = vport;
462 spin_lock_irq(shost->host_lock);
5024ab17 463 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
2e0fef85 464 spin_unlock_irq(shost->host_lock);
dea3101e 465
33ccf8d1
JS		 466 /*
467 * If there is an outstanding PLOGI issued, abort it before
468 * sending ACC rsp for received PLOGI. If pending plogi
469 * is not canceled here, the plogi will be rejected by
470 * remote port and will be retried. On a configuration with
471 * single discovery thread, this will cause a huge delay in
472 * discovery. Also this will cause multiple state machines
473 * running in parallel for this node.
474 */
475 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
476 /* software abort outstanding PLOGI */
07951076 477 lpfc_els_abort(phba, ndlp);
33ccf8d1
JS		 478 }
479
858c9f6c 480 if ((vport->port_type == LPFC_NPIV_PORT &&
3de2a653 481 vport->cfg_restrict_login)) {
858c9f6c
JS		 482
483 /* In order to preserve RPIs, we want to cleanup
484 * the default RPI the firmware created to rcv
485 * this ELS request. The only way to do this is
486 * to register, then unregister the RPI.
487 */
488 spin_lock_irq(shost->host_lock);
489 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
490 spin_unlock_irq(shost->host_lock);
491 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
492 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
0a8a86fa 493 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
858c9f6c 494 ndlp, mbox);
0a8a86fa
JS		 495 if (rc)
496 mempool_free(mbox, phba->mbox_mem_pool);
858c9f6c
JS		 497 return 1;
498 }
0a8a86fa
JS		 499 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox);
500 if (rc)
501 mempool_free(mbox, phba->mbox_mem_pool);
c9f8735b 502 return 1;
dea3101e
JB		 503out:
504 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
505 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
858c9f6c 506 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
c9f8735b 507 return 0;
dea3101e
JB		 508}
509
6b5151fd
JS		 510/**
511 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine
512 * @phba: pointer to lpfc hba data structure.
513 * @mboxq: pointer to mailbox object
514 *
515 * This routine is invoked to issue a completion to a rcv'ed
516 * ADISC or PDISC after the paused RPI has been resumed.
517 **/
518static void
519lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
520{
521 struct lpfc_vport *vport;
522 struct lpfc_iocbq *elsiocb;
523 struct lpfc_nodelist *ndlp;
524 uint32_t cmd;
525
526 elsiocb = (struct lpfc_iocbq *)mboxq->context1;
527 ndlp = (struct lpfc_nodelist *) mboxq->context2;
528 vport = mboxq->vport;
529 cmd = elsiocb->drvrTimeout;
530
531 if (cmd == ELS_CMD_ADISC) {
532 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp);
533 } else {
534 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb,
535 ndlp, NULL);
536 }
537 kfree(elsiocb);
72859909 538 mempool_free(mboxq, phba->mbox_mem_pool);
6b5151fd
JS		 539}
540
dea3101e 541static int
2e0fef85 542lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e
JB		 543 struct lpfc_iocbq *cmdiocb)
544{
2e0fef85 545 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6b5151fd 546 struct lpfc_iocbq *elsiocb;
dea3101e 547 struct lpfc_dmabuf *pcmd;
2e0fef85
JS		 548 struct serv_parm *sp;
549 struct lpfc_name *pnn, *ppn;
dea3101e
JB		 550 struct ls_rjt stat;
551 ADISC *ap;
552 IOCB_t *icmd;
553 uint32_t *lp;
554 uint32_t cmd;
555
556 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
557 lp = (uint32_t *) pcmd->virt;
558
559 cmd = *lp++;
560 if (cmd == ELS_CMD_ADISC) {
561 ap = (ADISC *) lp;
562 pnn = (struct lpfc_name *) & ap->nodeName;
563 ppn = (struct lpfc_name *) & ap->portName;
564 } else {
565 sp = (struct serv_parm *) lp;
566 pnn = (struct lpfc_name *) & sp->nodeName;
567 ppn = (struct lpfc_name *) & sp->portName;
568 }
569
570 icmd = &cmdiocb->iocb;
2e0fef85 571 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
6b5151fd
JS		 572
573 /*
574 * As soon as we send ACC, the remote NPort can
575 * start sending us data. Thus, for SLI4 we must
576 * resume the RPI before the ACC goes out.
577 */
578 if (vport->phba->sli_rev == LPFC_SLI_REV4) {
579 elsiocb = kmalloc(sizeof(struct lpfc_iocbq),
580 GFP_KERNEL);
581 if (elsiocb) {
582
583 /* Save info from cmd IOCB used in rsp */
584 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb,
585 sizeof(struct lpfc_iocbq));
586
587 /* Save the ELS cmd */
588 elsiocb->drvrTimeout = cmd;
589
590 lpfc_sli4_resume_rpi(ndlp,
591 lpfc_mbx_cmpl_resume_rpi, elsiocb);
592 goto out;
593 }
594 }
595
dea3101e 596 if (cmd == ELS_CMD_ADISC) {
2e0fef85 597 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
2fe165b6 598 } else {
6b5151fd
JS		 599 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
600 ndlp, NULL);
dea3101e 601 }
6b5151fd
JS		 602out:
603 /* If we are authenticated, move to the proper state */
604 if (ndlp->nlp_type & NLP_FCP_TARGET)
605 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
606 else
607 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
608
c9f8735b 609 return 1;
dea3101e
JB		 610 }
611 /* Reject this request because invalid parameters */
612 stat.un.b.lsRjtRsvd0 = 0;
613 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
614 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
615 stat.un.b.vendorUnique = 0;
858c9f6c 616 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
dea3101e 617
dea3101e 618 /* 1 sec timeout */
256ec0d0 619 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
dea3101e 620
2e0fef85 621 spin_lock_irq(shost->host_lock);
dea3101e 622 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 623 spin_unlock_irq(shost->host_lock);
5024ab17
JW		 624 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
625 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85 626 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
c9f8735b 627 return 0;
dea3101e
JB		 628}
629
630static int
2e0fef85
JS		 631lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
632 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
dea3101e 633{
2e0fef85 634 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4b40c59e
JS		 635 struct lpfc_hba *phba = vport->phba;
636 struct lpfc_vport **vports;
637 int i, active_vlink_present = 0 ;
2e0fef85
JS		 638
639 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
dea3101e
JB		 640 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
641 * PLOGIs during LOGO storms from a device.
642 */
2e0fef85 643 spin_lock_irq(shost->host_lock);
dea3101e 644 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 645 spin_unlock_irq(shost->host_lock);
82d9a2a2 646 if (els_cmd == ELS_CMD_PRLO)
51ef4c26 647 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
82d9a2a2 648 else
51ef4c26 649 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
4b40c59e
JS		 650 if (ndlp->nlp_DID == Fabric_DID) {
651 if (vport->port_state <= LPFC_FDISC)
652 goto out;
6fb120a7 653 lpfc_linkdown_port(vport);
6fb120a7 654 spin_lock_irq(shost->host_lock);
4b40c59e 655 vport->fc_flag |= FC_VPORT_LOGO_RCVD;
6fb120a7 656 spin_unlock_irq(shost->host_lock);
4b40c59e
JS		 657 vports = lpfc_create_vport_work_array(phba);
658 if (vports) {
659 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
660 i++) {
661 if ((!(vports[i]->fc_flag &
662 FC_VPORT_LOGO_RCVD)) &&
663 (vports[i]->port_state > LPFC_FDISC)) {
664 active_vlink_present = 1;
665 break;
666 }
667 }
668 lpfc_destroy_vport_work_array(phba, vports);
669 }
dea3101e 670
cc82355a
JS		 671 /*
672 * Don't re-instantiate if vport is marked for deletion.
673 * If we are here first then vport_delete is going to wait
674 * for discovery to complete.
675 */
676 if (!(vport->load_flag & FC_UNLOADING) &&
677 active_vlink_present) {
4b40c59e
JS		 678 /*
679 * If there are other active VLinks present,
680 * re-instantiate the Vlink using FDISC.
681 */
256ec0d0
JS		 682 mod_timer(&ndlp->nlp_delayfunc,
683 jiffies + msecs_to_jiffies(1000));
4b40c59e
JS		 684 spin_lock_irq(shost->host_lock);
685 ndlp->nlp_flag |= NLP_DELAY_TMO;
686 spin_unlock_irq(shost->host_lock);
687 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
688 vport->port_state = LPFC_FDISC;
689 } else {
690 spin_lock_irq(shost->host_lock);
691 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG;
692 spin_unlock_irq(shost->host_lock);
693 lpfc_retry_pport_discovery(phba);
694 }
6fb120a7
JS		 695 } else if ((!(ndlp->nlp_type & NLP_FABRIC) &&
696 ((ndlp->nlp_type & NLP_FCP_TARGET) ||
697 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
698 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
dea3101e 699 /* Only try to re-login if this is NOT a Fabric Node */
256ec0d0
JS		 700 mod_timer(&ndlp->nlp_delayfunc,
701 jiffies + msecs_to_jiffies(1000 * 1));
2e0fef85 702 spin_lock_irq(shost->host_lock);
dea3101e 703 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 704 spin_unlock_irq(shost->host_lock);
dea3101e 705
5024ab17 706 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b 707 }
4b40c59e 708out:
87af33fe
JS		 709 ndlp->nlp_prev_state = ndlp->nlp_state;
710 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 711
2e0fef85 712 spin_lock_irq(shost->host_lock);
dea3101e 713 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 714 spin_unlock_irq(shost->host_lock);
dea3101e
JB		 715 /* The driver has to wait until the ACC completes before it continues
716 * processing the LOGO. The action will resume in
717 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
718 * unreg_login, the driver waits so the ACC does not get aborted.
719 */
c9f8735b 720 return 0;
dea3101e
JB		 721}
722
723static void
2e0fef85
JS		 724lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
725 struct lpfc_iocbq *cmdiocb)
dea3101e 726{
a0f2d3ef 727 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 728 struct lpfc_dmabuf *pcmd;
729 uint32_t *lp;
730 PRLI *npr;
731 struct fc_rport *rport = ndlp->rport;
732 u32 roles;
733
734 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
735 lp = (uint32_t *) pcmd->virt;
736 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
737
738 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
739 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
3cb01c57 740 ndlp->nlp_flag &= ~NLP_FIRSTBURST;
a0f2d3ef
JS		 741 if ((npr->prliType == PRLI_FCP_TYPE) ||
742 (npr->prliType == PRLI_NVME_TYPE)) {
743 if (npr->initiatorFunc) {
744 if (npr->prliType == PRLI_FCP_TYPE)
745 ndlp->nlp_type |= NLP_FCP_INITIATOR;
746 if (npr->prliType == PRLI_NVME_TYPE)
747 ndlp->nlp_type |= NLP_NVME_INITIATOR;
748 }
3cb01c57 749 if (npr->targetFunc) {
a0f2d3ef
JS		 750 if (npr->prliType == PRLI_FCP_TYPE)
751 ndlp->nlp_type |= NLP_FCP_TARGET;
752 if (npr->prliType == PRLI_NVME_TYPE)
753 ndlp->nlp_type |= NLP_NVME_TARGET;
3cb01c57
JS		 754 if (npr->writeXferRdyDis)
755 ndlp->nlp_flag |= NLP_FIRSTBURST;
756 }
dea3101e
JB		 757 if (npr->Retry)
758 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
8c258641
JS		 759
760 /* If this driver is in nvme target mode, set the ndlp's fc4
761 * type to NVME provided the PRLI response claims NVME FC4
762 * type. Target mode does not issue gft_id so doesn't get
763 * the fc4 type set until now.
764 */
765 if ((phba->nvmet_support) && (npr->prliType == PRLI_NVME_TYPE))
766 ndlp->nlp_fc4_type |= NLP_FC4_NVME;
dea3101e
JB		 767 }
768 if (rport) {
769 /* We need to update the rport role values */
770 roles = FC_RPORT_ROLE_UNKNOWN;
771 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
772 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
773 if (ndlp->nlp_type & NLP_FCP_TARGET)
774 roles |= FC_RPORT_ROLE_FCP_TARGET;
858c9f6c
JS		 775
776 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
777 "rport rolechg: role:x%x did:x%x flg:x%x",
778 roles, ndlp->nlp_DID, ndlp->nlp_flag);
779
a0f2d3ef
JS		 780 if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
781 fc_remote_port_rolechg(rport, roles);
dea3101e
JB		 782 }
783}
784
785static uint32_t
2e0fef85 786lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 787{
2e0fef85 788 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 789
4042629e 790 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
51ef4c26
JS		 791 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
792 return 0;
793 }
794
1b32f6aa
JS		 795 if (!(vport->fc_flag & FC_PT2PT)) {
796 /* Check config parameter use-adisc or FCP-2 */
797 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
ffc95493
JS		 798 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) &&
799 (ndlp->nlp_type & NLP_FCP_TARGET))) {
1b32f6aa
JS		 800 spin_lock_irq(shost->host_lock);
801 ndlp->nlp_flag |= NLP_NPR_ADISC;
802 spin_unlock_irq(shost->host_lock);
803 return 1;
804 }
92d7f7b0
JS		 805 }
806 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
807 lpfc_unreg_rpi(vport, ndlp);
808 return 0;
dea3101e 809}
6d368e53 810
78730cfe 811/**
25985edc 812 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd.
78730cfe
JS		 813 * @phba : Pointer to lpfc_hba structure.
814 * @vport: Pointer to lpfc_vport structure.
815 * @rpi : rpi to be release.
816 *
817 * This function will send a unreg_login mailbox command to the firmware
818 * to release a rpi.
819 **/
820void
821lpfc_release_rpi(struct lpfc_hba *phba,
822 struct lpfc_vport *vport,
823 uint16_t rpi)
824{
825 LPFC_MBOXQ_t *pmb;
826 int rc;
827
828 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
829 GFP_KERNEL);
830 if (!pmb)
831 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
832 "2796 mailbox memory allocation failed \n");
833 else {
834 lpfc_unreg_login(phba, vport->vpi, rpi, pmb);
835 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
836 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
837 if (rc == MBX_NOT_FINISHED)
838 mempool_free(pmb, phba->mbox_mem_pool);
839 }
840}
dea3101e
JB		 841
842static uint32_t
2e0fef85
JS		 843lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
844 void *arg, uint32_t evt)
dea3101e 845{
78730cfe
JS		 846 struct lpfc_hba *phba;
847 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
78730cfe
JS		 848 uint16_t rpi;
849
850 phba = vport->phba;
851 /* Release the RPI if reglogin completing */
852 if (!(phba->pport->load_flag & FC_UNLOADING) &&
853 (evt == NLP_EVT_CMPL_REG_LOGIN) &&
854 (!pmb->u.mb.mbxStatus)) {
78730cfe
JS		 855 rpi = pmb->u.mb.un.varWords[0];
856 lpfc_release_rpi(phba, vport, rpi);
857 }
e8b62011 858 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
e47c9093 859 "0271 Illegal State Transition: node x%x "
e8b62011
JS		 860 "event x%x, state x%x Data: x%x x%x\n",
861 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
862 ndlp->nlp_flag);
c9f8735b 863 return ndlp->nlp_state;
dea3101e
JB		 864}
865
87af33fe
JS		 866static uint32_t
867lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
868 void *arg, uint32_t evt)
869{
870 /* This transition is only legal if we previously
871 * rcv'ed a PLOGI. Since we don't want 2 discovery threads
872 * working on the same NPortID, do nothing for this thread
873 * to stop it.
874 */
875 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
876 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
e47c9093 877 "0272 Illegal State Transition: node x%x "
87af33fe
JS		 878 "event x%x, state x%x Data: x%x x%x\n",
879 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
880 ndlp->nlp_flag);
881 }
882 return ndlp->nlp_state;
883}
884
dea3101e
JB		 885/* Start of Discovery State Machine routines */
886
887static uint32_t
2e0fef85
JS		 888lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
889 void *arg, uint32_t evt)
dea3101e
JB		 890{
891 struct lpfc_iocbq *cmdiocb;
892
893 cmdiocb = (struct lpfc_iocbq *) arg;
894
2e0fef85 895 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
c9f8735b 896 return ndlp->nlp_state;
dea3101e 897 }
c9f8735b 898 return NLP_STE_FREED_NODE;
dea3101e
JB		 899}
900
901static uint32_t
2e0fef85
JS		 902lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
903 void *arg, uint32_t evt)
dea3101e 904{
2e0fef85 905 lpfc_issue_els_logo(vport, ndlp, 0);
c9f8735b 906 return ndlp->nlp_state;
dea3101e
JB		 907}
908
909static uint32_t
2e0fef85
JS		 910lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
911 void *arg, uint32_t evt)
dea3101e 912{
2e0fef85
JS		 913 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
914 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 915
2e0fef85 916 spin_lock_irq(shost->host_lock);
dea3101e 917 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 918 spin_unlock_irq(shost->host_lock);
51ef4c26 919 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 920
c9f8735b 921 return ndlp->nlp_state;
dea3101e
JB		 922}
923
924static uint32_t
2e0fef85
JS		 925lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
926 void *arg, uint32_t evt)
dea3101e 927{
c9f8735b 928 return NLP_STE_FREED_NODE;
dea3101e
JB		 929}
930
931static uint32_t
2e0fef85
JS		 932lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
933 void *arg, uint32_t evt)
dea3101e 934{
c9f8735b 935 return NLP_STE_FREED_NODE;
dea3101e
JB		 936}
937
df9e1b59
JS		 938static uint32_t
939lpfc_device_recov_unused_node(struct lpfc_vport *vport,
940 struct lpfc_nodelist *ndlp,
941 void *arg, uint32_t evt)
942{
943 return ndlp->nlp_state;
944}
945
dea3101e 946static uint32_t
2e0fef85 947lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e
JB		 948 void *arg, uint32_t evt)
949{
0d2b6b83 950 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 951 struct lpfc_hba *phba = vport->phba;
dea3101e 952 struct lpfc_iocbq *cmdiocb = arg;
2e0fef85
JS		 953 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
954 uint32_t *lp = (uint32_t *) pcmd->virt;
955 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
dea3101e
JB		 956 struct ls_rjt stat;
957 int port_cmp;
958
dea3101e
JB		 959 memset(&stat, 0, sizeof (struct ls_rjt));
960
961 /* For a PLOGI, we only accept if our portname is less
962 * than the remote portname.
963 */
964 phba->fc_stat.elsLogiCol++;
2e0fef85 965 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
92d7f7b0 966 sizeof(struct lpfc_name));
dea3101e
JB		 967
968 if (port_cmp >= 0) {
969 /* Reject this request because the remote node will accept
970 ours */
971 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
972 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
858c9f6c
JS		 973 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
974 NULL);
2fe165b6 975 } else {
0d2b6b83
JS		 976 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) &&
977 (ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
978 (vport->num_disc_nodes)) {
979 spin_lock_irq(shost->host_lock);
980 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
981 spin_unlock_irq(shost->host_lock);
982 /* Check if there are more PLOGIs to be sent */
983 lpfc_more_plogi(vport);
984 if (vport->num_disc_nodes == 0) {
985 spin_lock_irq(shost->host_lock);
986 vport->fc_flag &= ~FC_NDISC_ACTIVE;
987 spin_unlock_irq(shost->host_lock);
988 lpfc_can_disctmo(vport);
989 lpfc_end_rscn(vport);
990 }
991 }
2e0fef85 992 } /* If our portname was less */
dea3101e 993
c9f8735b
JW		 994 return ndlp->nlp_state;
995}
996
92d7f7b0
JS		 997static uint32_t
998lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
999 void *arg, uint32_t evt)
1000{
1001 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1002 struct ls_rjt stat;
1003
1004 memset(&stat, 0, sizeof (struct ls_rjt));
1005 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
1006 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
858c9f6c 1007 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
92d7f7b0
JS		 1008 return ndlp->nlp_state;
1009}
1010
c9f8735b 1011static uint32_t
2e0fef85
JS		 1012lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1013 void *arg, uint32_t evt)
c9f8735b 1014{
2e0fef85 1015 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
c9f8735b 1016
92d7f7b0 1017 /* software abort outstanding PLOGI */
2e0fef85 1018 lpfc_els_abort(vport->phba, ndlp);
c9f8735b 1019
2e0fef85 1020 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1021 return ndlp->nlp_state;
dea3101e
JB		 1022}
1023
1024static uint32_t
2e0fef85
JS		 1025lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1026 void *arg, uint32_t evt)
dea3101e 1027{
2e0fef85
JS		 1028 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1029 struct lpfc_hba *phba = vport->phba;
1030 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e
JB		 1031
1032 /* software abort outstanding PLOGI */
07951076 1033 lpfc_els_abort(phba, ndlp);
dea3101e
JB		 1034
1035 if (evt == NLP_EVT_RCV_LOGO) {
51ef4c26 1036 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2fe165b6 1037 } else {
2e0fef85 1038 lpfc_issue_els_logo(vport, ndlp, 0);
dea3101e
JB		 1039 }
1040
2e0fef85 1041 /* Put ndlp in npr state set plogi timer for 1 sec */
256ec0d0 1042 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1));
2e0fef85 1043 spin_lock_irq(shost->host_lock);
5024ab17 1044 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1045 spin_unlock_irq(shost->host_lock);
5024ab17
JW		 1046 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
1047 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
2e0fef85 1048 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 1049
c9f8735b 1050 return ndlp->nlp_state;
dea3101e
JB		 1051}
1052
1053static uint32_t
2e0fef85
JS		 1054lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
1055 struct lpfc_nodelist *ndlp,
1056 void *arg,
dea3101e
JB		 1057 uint32_t evt)
1058{
2e0fef85 1059 struct lpfc_hba *phba = vport->phba;
0ff10d46 1060 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 1061 struct lpfc_iocbq *cmdiocb, *rspiocb;
14691150 1062 struct lpfc_dmabuf *pcmd, *prsp, *mp;
dea3101e 1063 uint32_t *lp;
8c258641 1064 uint32_t vid, flag;
dea3101e
JB		 1065 IOCB_t *irsp;
1066 struct serv_parm *sp;
d6de08cc 1067 uint32_t ed_tov;
dea3101e 1068 LPFC_MBOXQ_t *mbox;
d6de08cc 1069 int rc;
dea3101e
JB		 1070
1071 cmdiocb = (struct lpfc_iocbq *) arg;
1072 rspiocb = cmdiocb->context_un.rsp_iocb;
1073
1074 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
5024ab17 1075 /* Recovery from PLOGI collision logic */
c9f8735b 1076 return ndlp->nlp_state;
dea3101e
JB		 1077 }
1078
1079 irsp = &rspiocb->iocb;
1080
1081 if (irsp->ulpStatus)
1082 goto out;
1083
1084 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
1085
2e0fef85 1086 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
a2fc4aef
JS		 1087 if (!prsp)
1088 goto out;
dea3101e 1089
2e0fef85 1090 lp = (uint32_t *) prsp->virt;
dea3101e 1091 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
58da1ffb
JS		 1092
1093 /* Some switches have FDMI servers returning 0 for WWN */
1094 if ((ndlp->nlp_DID != FDMI_DID) &&
1095 (wwn_to_u64(sp->portName.u.wwn) == 0 ||
1096 wwn_to_u64(sp->nodeName.u.wwn) == 0)) {
a8adb832
JS		 1097 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1098 "0142 PLOGI RSP: Invalid WWN.\n");
1099 goto out;
1100 }
341af102 1101 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0))
dea3101e 1102 goto out;
dea3101e 1103 /* PLOGI chkparm OK */
e8b62011
JS		 1104 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1105 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
1106 ndlp->nlp_DID, ndlp->nlp_state,
1107 ndlp->nlp_flag, ndlp->nlp_rpi);
3de2a653 1108 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
dea3101e 1109 ndlp->nlp_fcp_info |= CLASS2;
2e0fef85 1110 else
dea3101e 1111 ndlp->nlp_fcp_info |= CLASS3;
2e0fef85 1112
dea3101e
JB		 1113 ndlp->nlp_class_sup = 0;
1114 if (sp->cls1.classValid)
1115 ndlp->nlp_class_sup |= FC_COS_CLASS1;
1116 if (sp->cls2.classValid)
1117 ndlp->nlp_class_sup |= FC_COS_CLASS2;
1118 if (sp->cls3.classValid)
1119 ndlp->nlp_class_sup |= FC_COS_CLASS3;
1120 if (sp->cls4.classValid)
1121 ndlp->nlp_class_sup |= FC_COS_CLASS4;
1122 ndlp->nlp_maxframe =
2e0fef85 1123 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
dea3101e 1124
d6de08cc
JS		 1125 if ((vport->fc_flag & FC_PT2PT) &&
1126 (vport->fc_flag & FC_PT2PT_PLOGI)) {
1127 ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
1128 if (sp->cmn.edtovResolution) {
1129 /* E_D_TOV ticks are in nanoseconds */
1130 ed_tov = (phba->fc_edtov + 999999) / 1000000;
1131 }
1132
8c258641
JS		 1133 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP;
1134 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) &&
1135 sp->cmn.valid_vendor_ver_level) {
1136 vid = be32_to_cpu(sp->un.vv.vid);
1137 flag = be32_to_cpu(sp->un.vv.flags);
1138 if ((vid == LPFC_VV_EMLX_ID) &&
1139 (flag & LPFC_VV_SUPPRESS_RSP))
1140 ndlp->nlp_flag |= NLP_SUPPRESS_RSP;
1141 }
1142
d6de08cc
JS		 1143 /*
1144 * Use the larger EDTOV
1145 * RATOV = 2 * EDTOV for pt-to-pt
1146 */
1147 if (ed_tov > phba->fc_edtov)
1148 phba->fc_edtov = ed_tov;
1149 phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
1150
1151 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
1152
1153 /* Issue config_link / reg_vfi to account for updated TOV's */
1154 if (phba->sli_rev == LPFC_SLI_REV4) {
1155 lpfc_issue_reg_vfi(vport);
1156 } else {
01c73bbc
JS		 1157 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1158 if (!mbox) {
1159 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1160 "0133 PLOGI: no memory "
1161 "for config_link "
1162 "Data: x%x x%x x%x x%x\n",
1163 ndlp->nlp_DID, ndlp->nlp_state,
1164 ndlp->nlp_flag, ndlp->nlp_rpi);
1165 goto out;
1166 }
1167
d6de08cc
JS		 1168 lpfc_config_link(phba, mbox);
1169
1170 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1171 mbox->vport = vport;
1172 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
1173 if (rc == MBX_NOT_FINISHED) {
1174 mempool_free(mbox, phba->mbox_mem_pool);
1175 goto out;
1176 }
1177 }
92d7f7b0 1178 }
dea3101e 1179
2e0fef85
JS		 1180 lpfc_unreg_rpi(vport, ndlp);
1181
01c73bbc
JS		 1182 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1183 if (!mbox) {
1184 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1185 "0018 PLOGI: no memory for reg_login "
1186 "Data: x%x x%x x%x x%x\n",
1187 ndlp->nlp_DID, ndlp->nlp_state,
1188 ndlp->nlp_flag, ndlp->nlp_rpi);
1189 goto out;
1190 }
1191
6fb120a7 1192 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID,
4042629e 1193 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) {
2fe165b6 1194 switch (ndlp->nlp_DID) {
dea3101e 1195 case NameServer_DID:
de0c5b32 1196 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
dea3101e
JB		 1197 break;
1198 case FDMI_DID:
de0c5b32 1199 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
dea3101e
JB		 1200 break;
1201 default:
ffc95493 1202 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
de0c5b32 1203 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
dea3101e 1204 }
329f9bc7 1205 mbox->context2 = lpfc_nlp_get(ndlp);
2e0fef85 1206 mbox->vport = vport;
0b727fea 1207 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
dea3101e 1208 != MBX_NOT_FINISHED) {
2e0fef85
JS		 1209 lpfc_nlp_set_state(vport, ndlp,
1210 NLP_STE_REG_LOGIN_ISSUE);
c9f8735b 1211 return ndlp->nlp_state;
dea3101e 1212 }
ffc95493
JS		 1213 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
1214 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
fa4066b6
JS		 1215 /* decrement node reference count to the failed mbox
1216 * command
1217 */
329f9bc7 1218 lpfc_nlp_put(ndlp);
92d7f7b0 1219 mp = (struct lpfc_dmabuf *) mbox->context1;
14691150
JS		 1220 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1221 kfree(mp);
dea3101e 1222 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 1223
e8b62011
JS		 1224 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1225 "0134 PLOGI: cannot issue reg_login "
1226 "Data: x%x x%x x%x x%x\n",
1227 ndlp->nlp_DID, ndlp->nlp_state,
1228 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e
JB		 1229 } else {
1230 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 1231
e8b62011
JS		 1232 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1233 "0135 PLOGI: cannot format reg_login "
1234 "Data: x%x x%x x%x x%x\n",
1235 ndlp->nlp_DID, ndlp->nlp_state,
1236 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e
JB		 1237 }
1238
1239
92d7f7b0
JS		 1240out:
1241 if (ndlp->nlp_DID == NameServer_DID) {
1242 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 1243 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1244 "0261 Cannot Register NameServer login\n");
92d7f7b0
JS		 1245 }
1246
8b455cf3
JS		 1247 /*
1248 ** In case the node reference counter does not go to zero, ensure that
1249 ** the stale state for the node is not processed.
1250 */
1251
1252 ndlp->nlp_prev_state = ndlp->nlp_state;
1253 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
0ff10d46 1254 spin_lock_irq(shost->host_lock);
a8adb832 1255 ndlp->nlp_flag |= NLP_DEFER_RM;
0ff10d46 1256 spin_unlock_irq(shost->host_lock);
c9f8735b 1257 return NLP_STE_FREED_NODE;
dea3101e
JB		 1258}
1259
0ff10d46
JS		 1260static uint32_t
1261lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1262 void *arg, uint32_t evt)
1263{
1264 return ndlp->nlp_state;
1265}
1266
1267static uint32_t
1268lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
1269 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
1270{
78730cfe
JS		 1271 struct lpfc_hba *phba;
1272 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1273 MAILBOX_t *mb = &pmb->u.mb;
1274 uint16_t rpi;
1275
1276 phba = vport->phba;
1277 /* Release the RPI */
1278 if (!(phba->pport->load_flag & FC_UNLOADING) &&
1279 !mb->mbxStatus) {
1280 rpi = pmb->u.mb.un.varWords[0];
1281 lpfc_release_rpi(phba, vport, rpi);
1282 }
0ff10d46
JS		 1283 return ndlp->nlp_state;
1284}
1285
dea3101e 1286static uint32_t
2e0fef85
JS		 1287lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1288 void *arg, uint32_t evt)
dea3101e 1289{
2e0fef85
JS		 1290 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1291
1292 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1293 spin_lock_irq(shost->host_lock);
a0f9b48d 1294 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1295 spin_unlock_irq(shost->host_lock);
a0f9b48d 1296 return ndlp->nlp_state;
2e0fef85 1297 } else {
a0f9b48d 1298 /* software abort outstanding PLOGI */
2e0fef85 1299 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1300
2e0fef85 1301 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1302 return NLP_STE_FREED_NODE;
1303 }
dea3101e
JB		 1304}
1305
1306static uint32_t
2e0fef85
JS		 1307lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
1308 struct lpfc_nodelist *ndlp,
1309 void *arg,
1310 uint32_t evt)
dea3101e 1311{
2e0fef85
JS		 1312 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1313 struct lpfc_hba *phba = vport->phba;
1314
92d7f7b0
JS		 1315 /* Don't do anything that will mess up processing of the
1316 * previous RSCN.
1317 */
1318 if (vport->fc_flag & FC_RSCN_DEFERRED)
1319 return ndlp->nlp_state;
1320
dea3101e 1321 /* software abort outstanding PLOGI */
07951076 1322 lpfc_els_abort(phba, ndlp);
dea3101e 1323
5024ab17 1324 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
2e0fef85 1325 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
92d7f7b0 1326 spin_lock_irq(shost->host_lock);
a0f9b48d 1327 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1328 spin_unlock_irq(shost->host_lock);
dea3101e 1329
c9f8735b 1330 return ndlp->nlp_state;
dea3101e
JB		 1331}
1332
1333static uint32_t
2e0fef85
JS		 1334lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1335 void *arg, uint32_t evt)
dea3101e 1336{
0d2b6b83 1337 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 1338 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1339 struct lpfc_iocbq *cmdiocb;
1340
1341 /* software abort outstanding ADISC */
07951076 1342 lpfc_els_abort(phba, ndlp);
dea3101e
JB		 1343
1344 cmdiocb = (struct lpfc_iocbq *) arg;
1345
0d2b6b83
JS		 1346 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1347 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1348 spin_lock_irq(shost->host_lock);
1349 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1350 spin_unlock_irq(shost->host_lock);
90160e01 1351 if (vport->num_disc_nodes)
0d2b6b83 1352 lpfc_more_adisc(vport);
0d2b6b83
JS		 1353 }
1354 return ndlp->nlp_state;
1355 }
5024ab17 1356 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1357 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1358 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
dea3101e 1359
c9f8735b 1360 return ndlp->nlp_state;
dea3101e
JB		 1361}
1362
1363static uint32_t
2e0fef85
JS		 1364lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1365 void *arg, uint32_t evt)
dea3101e 1366{
2e0fef85 1367 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1368
2e0fef85 1369 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1370 return ndlp->nlp_state;
dea3101e
JB		 1371}
1372
1373static uint32_t
2e0fef85
JS		 1374lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1375 void *arg, uint32_t evt)
dea3101e 1376{
2e0fef85 1377 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1378 struct lpfc_iocbq *cmdiocb;
1379
1380 cmdiocb = (struct lpfc_iocbq *) arg;
1381
1382 /* software abort outstanding ADISC */
07951076 1383 lpfc_els_abort(phba, ndlp);
dea3101e 1384
2e0fef85 1385 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1386 return ndlp->nlp_state;
dea3101e
JB		 1387}
1388
1389static uint32_t
2e0fef85
JS		 1390lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
1391 struct lpfc_nodelist *ndlp,
1392 void *arg, uint32_t evt)
dea3101e
JB		 1393{
1394 struct lpfc_iocbq *cmdiocb;
1395
1396 cmdiocb = (struct lpfc_iocbq *) arg;
1397
2e0fef85 1398 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1399 return ndlp->nlp_state;
dea3101e
JB		 1400}
1401
1402static uint32_t
2e0fef85
JS		 1403lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1404 void *arg, uint32_t evt)
dea3101e
JB		 1405{
1406 struct lpfc_iocbq *cmdiocb;
1407
1408 cmdiocb = (struct lpfc_iocbq *) arg;
1409
1410 /* Treat like rcv logo */
2e0fef85 1411 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
c9f8735b 1412 return ndlp->nlp_state;
dea3101e
JB		 1413}
1414
1415static uint32_t
2e0fef85
JS		 1416lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1417 struct lpfc_nodelist *ndlp,
1418 void *arg, uint32_t evt)
dea3101e 1419{
2e0fef85
JS		 1420 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1421 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1422 struct lpfc_iocbq *cmdiocb, *rspiocb;
1423 IOCB_t *irsp;
1424 ADISC *ap;
6fb120a7 1425 int rc;
dea3101e
JB		 1426
1427 cmdiocb = (struct lpfc_iocbq *) arg;
1428 rspiocb = cmdiocb->context_un.rsp_iocb;
1429
1430 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1431 irsp = &rspiocb->iocb;
1432
1433 if ((irsp->ulpStatus) ||
92d7f7b0 1434 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
dea3101e 1435 /* 1 sec timeout */
256ec0d0
JS		 1436 mod_timer(&ndlp->nlp_delayfunc,
1437 jiffies + msecs_to_jiffies(1000));
2e0fef85 1438 spin_lock_irq(shost->host_lock);
dea3101e 1439 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1440 spin_unlock_irq(shost->host_lock);
5024ab17 1441 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1442
2e0fef85
JS		 1443 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1444 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
dea3101e 1445
5024ab17 1446 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1447 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1448 lpfc_unreg_rpi(vport, ndlp);
c9f8735b 1449 return ndlp->nlp_state;
dea3101e 1450 }
5024ab17 1451
6fb120a7 1452 if (phba->sli_rev == LPFC_SLI_REV4) {
6b5151fd 1453 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL);
6fb120a7
JS		 1454 if (rc) {
1455 /* Stay in state and retry. */
1456 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
1457 return ndlp->nlp_state;
1458 }
1459 }
1460
2501322e 1461 if (ndlp->nlp_type & NLP_FCP_TARGET) {
5024ab17 1462 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85 1463 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
2501322e 1464 } else {
5024ab17 1465 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85 1466 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2501322e 1467 }
6fb120a7 1468
c9f8735b 1469 return ndlp->nlp_state;
dea3101e
JB		 1470}
1471
1472static uint32_t
2e0fef85
JS		 1473lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1474 void *arg, uint32_t evt)
dea3101e 1475{
2e0fef85
JS		 1476 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1477
1478 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1479 spin_lock_irq(shost->host_lock);
a0f9b48d 1480 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1481 spin_unlock_irq(shost->host_lock);
a0f9b48d 1482 return ndlp->nlp_state;
2e0fef85 1483 } else {
a0f9b48d 1484 /* software abort outstanding ADISC */
2e0fef85 1485 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1486
2e0fef85 1487 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1488 return NLP_STE_FREED_NODE;
1489 }
dea3101e
JB		 1490}
1491
1492static uint32_t
2e0fef85
JS		 1493lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1494 struct lpfc_nodelist *ndlp,
1495 void *arg,
1496 uint32_t evt)
dea3101e 1497{
2e0fef85
JS		 1498 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1499 struct lpfc_hba *phba = vport->phba;
1500
92d7f7b0
JS		 1501 /* Don't do anything that will mess up processing of the
1502 * previous RSCN.
1503 */
1504 if (vport->fc_flag & FC_RSCN_DEFERRED)
1505 return ndlp->nlp_state;
1506
dea3101e 1507 /* software abort outstanding ADISC */
07951076 1508 lpfc_els_abort(phba, ndlp);
dea3101e 1509
5024ab17 1510 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1511 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1512 spin_lock_irq(shost->host_lock);
a0f9b48d 1513 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1514 spin_unlock_irq(shost->host_lock);
92d7f7b0 1515 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1516 return ndlp->nlp_state;
dea3101e
JB		 1517}
1518
1519static uint32_t
2e0fef85
JS		 1520lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1521 struct lpfc_nodelist *ndlp,
1522 void *arg,
dea3101e
JB		 1523 uint32_t evt)
1524{
2e0fef85 1525 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1526
2e0fef85 1527 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1528 return ndlp->nlp_state;
dea3101e
JB		 1529}
1530
1531static uint32_t
2e0fef85
JS		 1532lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1533 struct lpfc_nodelist *ndlp,
1534 void *arg,
dea3101e
JB		 1535 uint32_t evt)
1536{
2e0fef85 1537 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
8c258641 1538 struct ls_rjt stat;
dea3101e 1539
8c258641
JS		 1540 if (vport->phba->nvmet_support) {
1541 /* NVME Target mode. Handle and respond to the PRLI and
1542 * transition to UNMAPPED provided the RPI has completed
1543 * registration.
1544 */
1545 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
1546 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1547 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1548 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1549 } else {
1550 /* RPI registration has not completed. Reject the PRLI
1551 * to prevent an illegal state transition when the
1552 * rpi registration does complete.
1553 */
1554 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC,
1555 "6115 NVMET ndlp rpi %d state "
1556 "unknown, state x%x flags x%08x\n",
1557 ndlp->nlp_rpi, ndlp->nlp_state,
1558 ndlp->nlp_flag);
1559 memset(&stat, 0, sizeof(struct ls_rjt));
1560 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1561 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
1562 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
1563 ndlp, NULL);
1564 }
1565 } else {
1566 /* Initiator mode. */
1567 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
1568 }
a0f2d3ef 1569
c9f8735b 1570 return ndlp->nlp_state;
dea3101e
JB		 1571}
1572
1573static uint32_t
2e0fef85
JS		 1574lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1575 struct lpfc_nodelist *ndlp,
1576 void *arg,
dea3101e
JB		 1577 uint32_t evt)
1578{
2e0fef85
JS		 1579 struct lpfc_hba *phba = vport->phba;
1580 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
7054a606
JS		 1581 LPFC_MBOXQ_t *mb;
1582 LPFC_MBOXQ_t *nextmb;
1583 struct lpfc_dmabuf *mp;
dea3101e
JB		 1584
1585 cmdiocb = (struct lpfc_iocbq *) arg;
1586
7054a606
JS		 1587 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1588 if ((mb = phba->sli.mbox_active)) {
04c68496 1589 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
7054a606 1590 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
de96e9c5 1591 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
92d7f7b0 1592 lpfc_nlp_put(ndlp);
7054a606
JS		 1593 mb->context2 = NULL;
1594 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1595 }
1596 }
1597
2e0fef85 1598 spin_lock_irq(&phba->hbalock);
7054a606 1599 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
04c68496 1600 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
7054a606
JS		 1601 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1602 mp = (struct lpfc_dmabuf *) (mb->context1);
1603 if (mp) {
98c9ea5c 1604 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
7054a606
JS		 1605 kfree(mp);
1606 }
de96e9c5 1607 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
92d7f7b0 1608 lpfc_nlp_put(ndlp);
7054a606 1609 list_del(&mb->list);
5ffc266e 1610 phba->sli.mboxq_cnt--;
7054a606
JS		 1611 mempool_free(mb, phba->mbox_mem_pool);
1612 }
1613 }
2e0fef85 1614 spin_unlock_irq(&phba->hbalock);
7054a606 1615
2e0fef85 1616 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1617 return ndlp->nlp_state;
dea3101e
JB		 1618}
1619
1620static uint32_t
2e0fef85
JS		 1621lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1622 struct lpfc_nodelist *ndlp,
1623 void *arg,
dea3101e
JB		 1624 uint32_t evt)
1625{
2e0fef85 1626 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1627
2e0fef85 1628 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1629 return ndlp->nlp_state;
dea3101e
JB		 1630}
1631
1632static uint32_t
2e0fef85
JS		 1633lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1634 struct lpfc_nodelist *ndlp,
1635 void *arg,
dea3101e
JB		 1636 uint32_t evt)
1637{
1638 struct lpfc_iocbq *cmdiocb;
1639
1640 cmdiocb = (struct lpfc_iocbq *) arg;
51ef4c26 1641 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1642 return ndlp->nlp_state;
dea3101e
JB		 1643}
1644
1645static uint32_t
2e0fef85
JS		 1646lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1647 struct lpfc_nodelist *ndlp,
1648 void *arg,
1649 uint32_t evt)
dea3101e 1650{
2e0fef85 1651 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
a0f2d3ef 1652 struct lpfc_hba *phba = vport->phba;
2e0fef85 1653 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
04c68496 1654 MAILBOX_t *mb = &pmb->u.mb;
2e0fef85 1655 uint32_t did = mb->un.varWords[1];
a0f2d3ef 1656 int rc = 0;
dea3101e 1657
dea3101e
JB		 1658 if (mb->mbxStatus) {
1659 /* RegLogin failed */
e8b62011 1660 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
6d368e53
JS		 1661 "0246 RegLogin failed Data: x%x x%x x%x x%x "
1662 "x%x\n",
1663 did, mb->mbxStatus, vport->port_state,
1664 mb->un.varRegLogin.vpi,
1665 mb->un.varRegLogin.rpi);
d0e56dad
JS		 1666 /*
1667 * If RegLogin failed due to lack of HBA resources do not
1668 * retry discovery.
1669 */
1670 if (mb->mbxStatus == MBXERR_RPI_FULL) {
87af33fe
JS		 1671 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1672 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
d0e56dad
JS		 1673 return ndlp->nlp_state;
1674 }
1675
2e0fef85 1676 /* Put ndlp in npr state set plogi timer for 1 sec */
256ec0d0
JS		 1677 mod_timer(&ndlp->nlp_delayfunc,
1678 jiffies + msecs_to_jiffies(1000 * 1));
2e0fef85 1679 spin_lock_irq(shost->host_lock);
dea3101e 1680 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1681 spin_unlock_irq(shost->host_lock);
5024ab17 1682 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1683
2e0fef85 1684 lpfc_issue_els_logo(vport, ndlp, 0);
5024ab17 1685 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85 1686 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
c9f8735b 1687 return ndlp->nlp_state;
dea3101e
JB		 1688 }
1689
6d368e53 1690 /* SLI4 ports have preallocated logical rpis. */
a0f2d3ef 1691 if (phba->sli_rev < LPFC_SLI_REV4)
6d368e53
JS		 1692 ndlp->nlp_rpi = mb->un.varWords[0];
1693
4042629e 1694 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
dea3101e
JB		 1695
1696 /* Only if we are not a fabric nport do we issue PRLI */
a0f2d3ef
JS		 1697 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1698 "3066 RegLogin Complete on x%x x%x x%x\n",
1699 did, ndlp->nlp_type, ndlp->nlp_fc4_type);
1700 if (!(ndlp->nlp_type & NLP_FABRIC) &&
1701 (phba->nvmet_support == 0)) {
1702 /* The driver supports FCP and NVME concurrently. If the
1703 * ndlp's nlp_fc4_type is still zero, the driver doesn't
1704 * know what PRLI to send yet. Figure that out now and
1705 * call PRLI depending on the outcome.
1706 */
1707 if (vport->fc_flag & FC_PT2PT) {
1708 /* If we are pt2pt, there is no Fabric to determine
1709 * the FC4 type of the remote nport. So if NVME
1710 * is configured try it.
1711 */
1712 ndlp->nlp_fc4_type |= NLP_FC4_FCP;
1713 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
1714 (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
1715 ndlp->nlp_fc4_type |= NLP_FC4_NVME;
1716 /* We need to update the localport also */
01649561 1717 lpfc_nvme_update_localport(vport);
a0f2d3ef
JS		 1718 }
1719
1720 } else if (ndlp->nlp_fc4_type == 0) {
1721 rc = lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID,
1722 0, ndlp->nlp_DID);
1723 return ndlp->nlp_state;
1724 }
1725
5024ab17 1726 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85
JS		 1727 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1728 lpfc_issue_els_prli(vport, ndlp, 0);
dea3101e 1729 } else {
8c258641
JS		 1730 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support)
1731 phba->targetport->port_id = vport->fc_myDID;
1732
1733 /* Only Fabric ports should transition. NVME target
1734 * must complete PRLI.
1735 */
a0f2d3ef
JS		 1736 if (ndlp->nlp_type & NLP_FABRIC) {
1737 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1738 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1739 }
dea3101e 1740 }
c9f8735b 1741 return ndlp->nlp_state;
dea3101e
JB		 1742}
1743
1744static uint32_t
2e0fef85
JS		 1745lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1746 struct lpfc_nodelist *ndlp,
1747 void *arg,
dea3101e
JB		 1748 uint32_t evt)
1749{
2e0fef85
JS		 1750 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1751
1752 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1753 spin_lock_irq(shost->host_lock);
a0f9b48d 1754 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1755 spin_unlock_irq(shost->host_lock);
a0f9b48d 1756 return ndlp->nlp_state;
2e0fef85
JS		 1757 } else {
1758 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1759 return NLP_STE_FREED_NODE;
1760 }
dea3101e
JB		 1761}
1762
1763static uint32_t
2e0fef85
JS		 1764lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1765 struct lpfc_nodelist *ndlp,
1766 void *arg,
1767 uint32_t evt)
dea3101e 1768{
2e0fef85
JS		 1769 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1770
92d7f7b0
JS		 1771 /* Don't do anything that will mess up processing of the
1772 * previous RSCN.
1773 */
1774 if (vport->fc_flag & FC_RSCN_DEFERRED)
1775 return ndlp->nlp_state;
1776
5024ab17 1777 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85
JS		 1778 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1779 spin_lock_irq(shost->host_lock);
a0f2d3ef 1780
8c258641
JS		 1781 /* If we are a target we won't immediately transition into PRLI,
1782 * so if REG_LOGIN already completed we don't need to ignore it.
1783 */
1784 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) ||
1785 !vport->phba->nvmet_support)
1786 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL;
1787
a0f9b48d 1788 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1789 spin_unlock_irq(shost->host_lock);
92d7f7b0 1790 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1791 return ndlp->nlp_state;
dea3101e
JB		 1792}
1793
1794static uint32_t
2e0fef85
JS		 1795lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1796 void *arg, uint32_t evt)
dea3101e
JB		 1797{
1798 struct lpfc_iocbq *cmdiocb;
1799
1800 cmdiocb = (struct lpfc_iocbq *) arg;
1801
2e0fef85 1802 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1803 return ndlp->nlp_state;
dea3101e
JB		 1804}
1805
1806static uint32_t
2e0fef85
JS		 1807lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1808 void *arg, uint32_t evt)
dea3101e 1809{
2e0fef85 1810 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1811
2e0fef85 1812 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1813 return ndlp->nlp_state;
dea3101e
JB		 1814}
1815
1816static uint32_t
2e0fef85
JS		 1817lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1818 void *arg, uint32_t evt)
dea3101e 1819{
2e0fef85 1820 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e
JB		 1821
1822 /* Software abort outstanding PRLI before sending acc */
2e0fef85 1823 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1824
2e0fef85 1825 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1826 return ndlp->nlp_state;
dea3101e
JB		 1827}
1828
1829static uint32_t
2e0fef85
JS		 1830lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1831 void *arg, uint32_t evt)
dea3101e 1832{
2e0fef85 1833 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1834
2e0fef85 1835 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1836 return ndlp->nlp_state;
dea3101e
JB		 1837}
1838
1839/* This routine is envoked when we rcv a PRLO request from a nport
1840 * we are logged into. We should send back a PRLO rsp setting the
1841 * appropriate bits.
1842 * NEXT STATE = PRLI_ISSUE
1843 */
1844static uint32_t
2e0fef85
JS		 1845lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1846 void *arg, uint32_t evt)
dea3101e 1847{
2e0fef85 1848 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1849
51ef4c26 1850 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1851 return ndlp->nlp_state;
dea3101e
JB		 1852}
1853
1854static uint32_t
2e0fef85
JS		 1855lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1856 void *arg, uint32_t evt)
dea3101e 1857{
92d7f7b0 1858 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 1859 struct lpfc_iocbq *cmdiocb, *rspiocb;
2e0fef85 1860 struct lpfc_hba *phba = vport->phba;
dea3101e
JB		 1861 IOCB_t *irsp;
1862 PRLI *npr;
a0f2d3ef
JS		 1863 struct lpfc_nvme_prli *nvpr;
1864 void *temp_ptr;
dea3101e
JB		 1865
1866 cmdiocb = (struct lpfc_iocbq *) arg;
1867 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f2d3ef
JS		 1868
1869 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp
1870 * format is different so NULL the two PRLI types so that the
1871 * driver correctly gets the correct context.
1872 */
1873 npr = NULL;
1874 nvpr = NULL;
1875 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1876 if (cmdiocb->iocb_flag & LPFC_PRLI_FCP_REQ)
1877 npr = (PRLI *) temp_ptr;
1878 else if (cmdiocb->iocb_flag & LPFC_PRLI_NVME_REQ)
1879 nvpr = (struct lpfc_nvme_prli *) temp_ptr;
dea3101e
JB		 1880
1881 irsp = &rspiocb->iocb;
1882 if (irsp->ulpStatus) {
858c9f6c 1883 if ((vport->port_type == LPFC_NPIV_PORT) &&
3de2a653 1884 vport->cfg_restrict_login) {
858c9f6c
JS		 1885 goto out;
1886 }
a0f2d3ef
JS		 1887
1888 /* The LS Req had some error. Don't let this be a
1889 * target.
1890 */
1891 if ((ndlp->fc4_prli_sent == 1) &&
1892 (ndlp->nlp_state == NLP_STE_PRLI_ISSUE) &&
1893 (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_FCP_INITIATOR)))
1894 /* The FCP PRLI completed successfully but
1895 * the NVME PRLI failed. Since they are sent in
1896 * succession, allow the FCP to complete.
1897 */
1898 goto out_err;
1899
5024ab17 1900 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
a0f2d3ef 1901 ndlp->nlp_type |= NLP_FCP_INITIATOR;
2e0fef85 1902 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
c9f8735b 1903 return ndlp->nlp_state;
dea3101e
JB		 1904 }
1905
1906 /* Check out PRLI rsp */
1907 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1908 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
a0f2d3ef
JS		 1909
1910 /* NVME or FCP first burst must be negotiated for each PRLI. */
3cb01c57 1911 ndlp->nlp_flag &= ~NLP_FIRSTBURST;
a0f2d3ef
JS		 1912 ndlp->nvme_fb_size = 0;
1913 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
dea3101e 1914 (npr->prliType == PRLI_FCP_TYPE)) {
a0f2d3ef
JS		 1915 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
1916 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n",
1917 npr->initiatorFunc,
1918 npr->targetFunc);
dea3101e
JB		 1919 if (npr->initiatorFunc)
1920 ndlp->nlp_type |= NLP_FCP_INITIATOR;
3cb01c57 1921 if (npr->targetFunc) {
dea3101e 1922 ndlp->nlp_type |= NLP_FCP_TARGET;
3cb01c57
JS		 1923 if (npr->writeXferRdyDis)
1924 ndlp->nlp_flag |= NLP_FIRSTBURST;
1925 }
dea3101e
JB		 1926 if (npr->Retry)
1927 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
a0f2d3ef
JS		 1928
1929 /* PRLI completed. Decrement count. */
1930 ndlp->fc4_prli_sent--;
1931 } else if (nvpr &&
1932 (bf_get_be32(prli_acc_rsp_code, nvpr) ==
1933 PRLI_REQ_EXECUTED) &&
1934 (bf_get_be32(prli_type_code, nvpr) ==
1935 PRLI_NVME_TYPE)) {
1936
1937 /* Complete setting up the remote ndlp personality. */
1938 if (bf_get_be32(prli_init, nvpr))
1939 ndlp->nlp_type |= NLP_NVME_INITIATOR;
1940
1941 /* Target driver cannot solicit NVME FB. */
1942 if (bf_get_be32(prli_tgt, nvpr)) {
1943 ndlp->nlp_type |= NLP_NVME_TARGET;
1944 if ((bf_get_be32(prli_fba, nvpr) == 1) &&
1945 (bf_get_be32(prli_fb_sz, nvpr) > 0) &&
1946 (phba->cfg_nvme_enable_fb) &&
1947 (!phba->nvmet_support)) {
1948 /* Both sides support FB. The target's first
1949 * burst size is a 512 byte encoded value.
1950 */
1951 ndlp->nlp_flag |= NLP_FIRSTBURST;
1952 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz,
1953 nvpr);
1954 }
1955 }
1956
1957 if (bf_get_be32(prli_recov, nvpr))
1958 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1959
1960 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
1961 "6029 NVME PRLI Cmpl w1 x%08x "
1962 "w4 x%08x w5 x%08x flag x%x, "
1963 "fcp_info x%x nlp_type x%x\n",
1964 be32_to_cpu(nvpr->word1),
1965 be32_to_cpu(nvpr->word4),
1966 be32_to_cpu(nvpr->word5),
1967 ndlp->nlp_flag, ndlp->nlp_fcp_info,
1968 ndlp->nlp_type);
1969 /* PRLI completed. Decrement count. */
1970 ndlp->fc4_prli_sent--;
dea3101e 1971 }
92d7f7b0
JS		 1972 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1973 (vport->port_type == LPFC_NPIV_PORT) &&
3de2a653 1974 vport->cfg_restrict_login) {
858c9f6c 1975out:
92d7f7b0
JS		 1976 spin_lock_irq(shost->host_lock);
1977 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1978 spin_unlock_irq(shost->host_lock);
1979 lpfc_issue_els_logo(vport, ndlp, 0);
1980
1981 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
87af33fe 1982 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
92d7f7b0
JS		 1983 return ndlp->nlp_state;
1984 }
dea3101e 1985
a0f2d3ef
JS		 1986out_err:
1987 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs
1988 * are complete.
1989 */
1990 if (ndlp->fc4_prli_sent == 0) {
1991 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
1992 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET))
1993 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1994 else
1995 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
1996 } else
1997 lpfc_printf_vlog(vport,
1998 KERN_INFO, LOG_ELS,
1999 "3067 PRLI's still outstanding "
2000 "on x%06x - count %d, Pend Node Mode "
2001 "transition...\n",
2002 ndlp->nlp_DID, ndlp->fc4_prli_sent);
2003
c9f8735b 2004 return ndlp->nlp_state;
dea3101e
JB		 2005}
2006
2007/*! lpfc_device_rm_prli_issue
92d7f7b0
JS		 2008 *
2009 * \pre
2010 * \post
2011 * \param phba
2012 * \param ndlp
2013 * \param arg
2014 * \param evt
2015 * \return uint32_t
2016 *
2017 * \b Description:
2018 * This routine is envoked when we a request to remove a nport we are in the
2019 * process of PRLIing. We should software abort outstanding prli, unreg
2020 * login, send a logout. We will change node state to UNUSED_NODE, put it
2021 * on plogi list so it can be freed when LOGO completes.
2022 *
2023 */
2024
dea3101e 2025static uint32_t
2e0fef85
JS		 2026lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2027 void *arg, uint32_t evt)
dea3101e 2028{
2e0fef85
JS		 2029 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2030
2031 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2032 spin_lock_irq(shost->host_lock);
a0f9b48d 2033 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 2034 spin_unlock_irq(shost->host_lock);
a0f9b48d 2035 return ndlp->nlp_state;
2e0fef85 2036 } else {
a0f9b48d 2037 /* software abort outstanding PLOGI */
2e0fef85 2038 lpfc_els_abort(vport->phba, ndlp);
dea3101e 2039
2e0fef85 2040 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 2041 return NLP_STE_FREED_NODE;
2042 }
dea3101e
JB		 2043}
2044
2045
2046/*! lpfc_device_recov_prli_issue
92d7f7b0
JS		 2047 *
2048 * \pre
2049 * \post
2050 * \param phba
2051 * \param ndlp
2052 * \param arg
2053 * \param evt
2054 * \return uint32_t
2055 *
2056 * \b Description:
2057 * The routine is envoked when the state of a device is unknown, like
2058 * during a link down. We should remove the nodelist entry from the
2059 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
2060 * outstanding PRLI command, then free the node entry.
2061 */
dea3101e 2062static uint32_t
2e0fef85
JS		 2063lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
2064 struct lpfc_nodelist *ndlp,
2065 void *arg,
2066 uint32_t evt)
dea3101e 2067{
2e0fef85
JS		 2068 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2069 struct lpfc_hba *phba = vport->phba;
2070
92d7f7b0
JS		 2071 /* Don't do anything that will mess up processing of the
2072 * previous RSCN.
2073 */
2074 if (vport->fc_flag & FC_RSCN_DEFERRED)
2075 return ndlp->nlp_state;
2076
dea3101e 2077 /* software abort outstanding PRLI */
07951076 2078 lpfc_els_abort(phba, ndlp);
dea3101e 2079
5024ab17 2080 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2e0fef85
JS		 2081 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2082 spin_lock_irq(shost->host_lock);
a0f9b48d 2083 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 2084 spin_unlock_irq(shost->host_lock);
92d7f7b0 2085 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 2086 return ndlp->nlp_state;
dea3101e
JB		 2087}
2088
086a345f
JS		 2089static uint32_t
2090lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2091 void *arg, uint32_t evt)
2092{
2093 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2094 struct ls_rjt stat;
2095
2096 memset(&stat, 0, sizeof(struct ls_rjt));
2097 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2098 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2099 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2100 return ndlp->nlp_state;
2101}
2102
2103static uint32_t
2104lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2105 void *arg, uint32_t evt)
2106{
2107 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2108 struct ls_rjt stat;
2109
2110 memset(&stat, 0, sizeof(struct ls_rjt));
2111 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2112 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2113 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2114 return ndlp->nlp_state;
2115}
2116
2117static uint32_t
2118lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2119 void *arg, uint32_t evt)
2120{
2121 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2122 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2123
2124 spin_lock_irq(shost->host_lock);
7c5e518c 2125 ndlp->nlp_flag |= NLP_LOGO_ACC;
086a345f
JS		 2126 spin_unlock_irq(shost->host_lock);
2127 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2128 return ndlp->nlp_state;
2129}
2130
2131static uint32_t
2132lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2133 void *arg, uint32_t evt)
2134{
2135 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2136 struct ls_rjt stat;
2137
2138 memset(&stat, 0, sizeof(struct ls_rjt));
2139 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2140 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2141 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2142 return ndlp->nlp_state;
2143}
2144
2145static uint32_t
2146lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2147 void *arg, uint32_t evt)
2148{
2149 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
2150 struct ls_rjt stat;
2151
2152 memset(&stat, 0, sizeof(struct ls_rjt));
2153 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2154 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2155 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
2156 return ndlp->nlp_state;
2157}
2158
2159static uint32_t
2160lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2161 void *arg, uint32_t evt)
2162{
2163 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2164
2165 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE;
2166 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2167 spin_lock_irq(shost->host_lock);
2168 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2169 spin_unlock_irq(shost->host_lock);
2170 lpfc_disc_set_adisc(vport, ndlp);
2171 return ndlp->nlp_state;
2172}
2173
2174static uint32_t
2175lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2176 void *arg, uint32_t evt)
2177{
2178 /*
2179 * Take no action. If a LOGO is outstanding, then possibly DevLoss has
2180 * timed out and is calling for Device Remove. In this case, the LOGO
2181 * must be allowed to complete in state LOGO_ISSUE so that the rpi
2182 * and other NLP flags are correctly cleaned up.
2183 */
2184 return ndlp->nlp_state;
2185}
2186
2187static uint32_t
2188lpfc_device_recov_logo_issue(struct lpfc_vport *vport,
2189 struct lpfc_nodelist *ndlp,
2190 void *arg, uint32_t evt)
2191{
2192 /*
2193 * Device Recovery events have no meaning for a node with a LOGO
2194 * outstanding. The LOGO has to complete first and handle the
2195 * node from that point.
2196 */
2197 return ndlp->nlp_state;
2198}
2199
dea3101e 2200static uint32_t
2e0fef85
JS		 2201lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2202 void *arg, uint32_t evt)
dea3101e 2203{
2e0fef85 2204 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2205
2e0fef85 2206 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 2207 return ndlp->nlp_state;
dea3101e
JB		 2208}
2209
2210static uint32_t
2e0fef85
JS		 2211lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2212 void *arg, uint32_t evt)
dea3101e 2213{
2e0fef85 2214 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2215
2e0fef85
JS		 2216 lpfc_rcv_prli(vport, ndlp, cmdiocb);
2217 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 2218 return ndlp->nlp_state;
dea3101e
JB		 2219}
2220
2221static uint32_t
2e0fef85
JS		 2222lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2223 void *arg, uint32_t evt)
dea3101e 2224{
2e0fef85 2225 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2226
2e0fef85 2227 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 2228 return ndlp->nlp_state;
dea3101e
JB		 2229}
2230
2231static uint32_t
2e0fef85
JS		 2232lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2233 void *arg, uint32_t evt)
dea3101e 2234{
2e0fef85 2235 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2236
2e0fef85 2237 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 2238 return ndlp->nlp_state;
dea3101e
JB		 2239}
2240
2241static uint32_t
2e0fef85
JS		 2242lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2243 void *arg, uint32_t evt)
dea3101e 2244{
2e0fef85 2245 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2246
51ef4c26 2247 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 2248 return ndlp->nlp_state;
dea3101e
JB		 2249}
2250
2251static uint32_t
2e0fef85
JS		 2252lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
2253 struct lpfc_nodelist *ndlp,
2254 void *arg,
2255 uint32_t evt)
dea3101e 2256{
2e0fef85
JS		 2257 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2258
5024ab17 2259 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
2e0fef85
JS		 2260 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2261 spin_lock_irq(shost->host_lock);
a0f9b48d 2262 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85
JS		 2263 spin_unlock_irq(shost->host_lock);
2264 lpfc_disc_set_adisc(vport, ndlp);
dea3101e 2265
c9f8735b 2266 return ndlp->nlp_state;
dea3101e
JB		 2267}
2268
2269static uint32_t
2e0fef85
JS		 2270lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2271 void *arg, uint32_t evt)
dea3101e 2272{
2e0fef85 2273 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2274
2e0fef85 2275 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 2276 return ndlp->nlp_state;
dea3101e
JB		 2277}
2278
2279static uint32_t
2e0fef85
JS		 2280lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2281 void *arg, uint32_t evt)
dea3101e 2282{
2e0fef85 2283 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2284
2e0fef85 2285 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 2286 return ndlp->nlp_state;
dea3101e
JB		 2287}
2288
2289static uint32_t
2e0fef85
JS		 2290lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2291 void *arg, uint32_t evt)
dea3101e 2292{
2e0fef85 2293 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2294
2e0fef85 2295 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 2296 return ndlp->nlp_state;
dea3101e
JB		 2297}
2298
2299static uint32_t
2e0fef85
JS		 2300lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
2301 struct lpfc_nodelist *ndlp,
2302 void *arg, uint32_t evt)
dea3101e 2303{
2e0fef85 2304 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2305
2e0fef85 2306 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 2307 return ndlp->nlp_state;
dea3101e
JB		 2308}
2309
2310static uint32_t
2e0fef85
JS		 2311lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2312 void *arg, uint32_t evt)
dea3101e 2313{
2e0fef85
JS		 2314 struct lpfc_hba *phba = vport->phba;
2315 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e
JB		 2316
2317 /* flush the target */
895427bd 2318 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING],
51ef4c26 2319 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
dea3101e
JB		 2320
2321 /* Treat like rcv logo */
2e0fef85 2322 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
c9f8735b 2323 return ndlp->nlp_state;
dea3101e
JB		 2324}
2325
2326static uint32_t
2e0fef85
JS		 2327lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
2328 struct lpfc_nodelist *ndlp,
2329 void *arg,
2330 uint32_t evt)
dea3101e 2331{
2e0fef85
JS		 2332 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2333
5024ab17 2334 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
2e0fef85
JS		 2335 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
2336 spin_lock_irq(shost->host_lock);
a0f9b48d 2337 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85
JS		 2338 spin_unlock_irq(shost->host_lock);
2339 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 2340 return ndlp->nlp_state;
dea3101e
JB		 2341}
2342
2343static uint32_t
2e0fef85
JS		 2344lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2345 void *arg, uint32_t evt)
dea3101e 2346{
2e0fef85
JS		 2347 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2348 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e
JB		 2349
2350 /* Ignore PLOGI if we have an outstanding LOGO */
0d2b6b83 2351 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
c9f8735b 2352 return ndlp->nlp_state;
2e0fef85 2353 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
0d2b6b83 2354 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2e0fef85 2355 spin_lock_irq(shost->host_lock);
0d2b6b83 2356 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
2e0fef85 2357 spin_unlock_irq(shost->host_lock);
0d2b6b83
JS		 2358 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
2359 /* send PLOGI immediately, move to PLOGI issue state */
2360 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2361 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2362 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2363 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2364 }
dea3101e 2365 }
c9f8735b 2366 return ndlp->nlp_state;
dea3101e
JB		 2367}
2368
2369static uint32_t
2e0fef85
JS		 2370lpfc_rcv_prli_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 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
2375 struct ls_rjt stat;
dea3101e
JB		 2376
2377 memset(&stat, 0, sizeof (struct ls_rjt));
2378 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
2379 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
858c9f6c 2380 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
dea3101e
JB		 2381
2382 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
2383 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2e0fef85 2384 spin_lock_irq(shost->host_lock);
c9f8735b 2385 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 2386 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 2387 spin_unlock_irq(shost->host_lock);
2388 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2389 lpfc_issue_els_adisc(vport, ndlp, 0);
dea3101e 2390 } else {
5024ab17 2391 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 2392 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2393 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e
JB		 2394 }
2395 }
c9f8735b 2396 return ndlp->nlp_state;
dea3101e
JB		 2397}
2398
2399static uint32_t
2e0fef85
JS		 2400lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2401 void *arg, uint32_t evt)
dea3101e 2402{
2e0fef85 2403 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2404
2e0fef85 2405 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 2406 return ndlp->nlp_state;
dea3101e
JB		 2407}
2408
2409static uint32_t
2e0fef85
JS		 2410lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2411 void *arg, uint32_t evt)
dea3101e 2412{
2e0fef85 2413 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2414
2e0fef85 2415 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
33ccf8d1
JS		 2416 /*
2417 * Do not start discovery if discovery is about to start
2418 * or discovery in progress for this node. Starting discovery
2419 * here will affect the counting of discovery threads.
2420 */
2fb9bd8b 2421 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
92d7f7b0 2422 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
dea3101e 2423 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
92d7f7b0 2424 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 2425 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 2426 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
2427 lpfc_issue_els_adisc(vport, ndlp, 0);
dea3101e 2428 } else {
5024ab17 2429 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 2430 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
2431 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e
JB		 2432 }
2433 }
c9f8735b 2434 return ndlp->nlp_state;
dea3101e
JB		 2435}
2436
2437static uint32_t
2e0fef85
JS		 2438lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2439 void *arg, uint32_t evt)
dea3101e 2440{
2e0fef85
JS		 2441 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2442 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 2443
2e0fef85 2444 spin_lock_irq(shost->host_lock);
c9f8735b 2445 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 2446 spin_unlock_irq(shost->host_lock);
c9f8735b 2447
51ef4c26 2448 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 2449
2e0fef85 2450 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
256ec0d0
JS		 2451 mod_timer(&ndlp->nlp_delayfunc,
2452 jiffies + msecs_to_jiffies(1000 * 1));
2e0fef85 2453 spin_lock_irq(shost->host_lock);
c9f8735b
JW		 2454 ndlp->nlp_flag |= NLP_DELAY_TMO;
2455 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 2456 spin_unlock_irq(shost->host_lock);
5024ab17 2457 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b 2458 } else {
2e0fef85 2459 spin_lock_irq(shost->host_lock);
c9f8735b 2460 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 2461 spin_unlock_irq(shost->host_lock);
dea3101e 2462 }
c9f8735b
JW		 2463 return ndlp->nlp_state;
2464}
dea3101e 2465
c9f8735b 2466static uint32_t
2e0fef85
JS		 2467lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2468 void *arg, uint32_t evt)
c9f8735b
JW		 2469{
2470 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 2471 IOCB_t *irsp;
8b455cf3 2472 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
c9f8735b
JW		 2473
2474 cmdiocb = (struct lpfc_iocbq *) arg;
2475 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 2476
2477 irsp = &rspiocb->iocb;
2478 if (irsp->ulpStatus) {
8b455cf3 2479 spin_lock_irq(shost->host_lock);
a8adb832 2480 ndlp->nlp_flag |= NLP_DEFER_RM;
8b455cf3 2481 spin_unlock_irq(shost->host_lock);
a0f9b48d
JS		 2482 return NLP_STE_FREED_NODE;
2483 }
c9f8735b
JW		 2484 return ndlp->nlp_state;
2485}
2486
2487static uint32_t
2e0fef85
JS		 2488lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2489 void *arg, uint32_t evt)
c9f8735b
JW		 2490{
2491 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 2492 IOCB_t *irsp;
c9f8735b
JW		 2493
2494 cmdiocb = (struct lpfc_iocbq *) arg;
2495 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 2496
2497 irsp = &rspiocb->iocb;
2498 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2e0fef85 2499 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 2500 return NLP_STE_FREED_NODE;
2501 }
c9f8735b 2502 return ndlp->nlp_state;
dea3101e
JB		 2503}
2504
2505static uint32_t
2e0fef85
JS		 2506lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2507 void *arg, uint32_t evt)
dea3101e 2508{
d7c255b2 2509 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
086a345f
JS		 2510
2511 /* For the fabric port just clear the fc flags. */
d7c255b2
JS		 2512 if (ndlp->nlp_DID == Fabric_DID) {
2513 spin_lock_irq(shost->host_lock);
2514 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
2515 spin_unlock_irq(shost->host_lock);
2516 }
2e0fef85 2517 lpfc_unreg_rpi(vport, ndlp);
c9f8735b
JW		 2518 return ndlp->nlp_state;
2519}
2520
2521static uint32_t
2e0fef85
JS		 2522lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2523 void *arg, uint32_t evt)
c9f8735b
JW		 2524{
2525 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 2526 IOCB_t *irsp;
c9f8735b
JW		 2527
2528 cmdiocb = (struct lpfc_iocbq *) arg;
2529 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 2530
2531 irsp = &rspiocb->iocb;
2532 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2e0fef85 2533 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 2534 return NLP_STE_FREED_NODE;
2535 }
c9f8735b 2536 return ndlp->nlp_state;
dea3101e
JB		 2537}
2538
2539static uint32_t
2e0fef85
JS		 2540lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
2541 struct lpfc_nodelist *ndlp,
2542 void *arg, uint32_t evt)
dea3101e 2543{
2e0fef85 2544 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
04c68496 2545 MAILBOX_t *mb = &pmb->u.mb;
dea3101e 2546
04c68496 2547 if (!mb->mbxStatus) {
6d368e53
JS		 2548 /* SLI4 ports have preallocated logical rpis. */
2549 if (vport->phba->sli_rev < LPFC_SLI_REV4)
2550 ndlp->nlp_rpi = mb->un.varWords[0];
4042629e 2551 ndlp->nlp_flag |= NLP_RPI_REGISTERED;
4b7789b7
JS		 2552 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
2553 lpfc_unreg_rpi(vport, ndlp);
2554 }
04c68496 2555 } else {
a0f9b48d 2556 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
2e0fef85 2557 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 2558 return NLP_STE_FREED_NODE;
2559 }
2560 }
c9f8735b 2561 return ndlp->nlp_state;
dea3101e
JB		 2562}
2563
2564static uint32_t
2e0fef85
JS		 2565lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2566 void *arg, uint32_t evt)
dea3101e 2567{
2e0fef85
JS		 2568 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2569
a0f9b48d 2570 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2e0fef85 2571 spin_lock_irq(shost->host_lock);
a0f9b48d 2572 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 2573 spin_unlock_irq(shost->host_lock);
a0f9b48d
JS		 2574 return ndlp->nlp_state;
2575 }
2e0fef85 2576 lpfc_drop_node(vport, ndlp);
c9f8735b 2577 return NLP_STE_FREED_NODE;
dea3101e
JB		 2578}
2579
2580static uint32_t
2e0fef85
JS		 2581lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2582 void *arg, uint32_t evt)
dea3101e 2583{
2e0fef85
JS		 2584 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2585
92d7f7b0
JS		 2586 /* Don't do anything that will mess up processing of the
2587 * previous RSCN.
2588 */
2589 if (vport->fc_flag & FC_RSCN_DEFERRED)
2590 return ndlp->nlp_state;
2591
eaf15d5b 2592 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2e0fef85 2593 spin_lock_irq(shost->host_lock);
a0f9b48d 2594 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 2595 spin_unlock_irq(shost->host_lock);
c9f8735b 2596 return ndlp->nlp_state;
dea3101e
JB		 2597}
2598
2599
2600/* This next section defines the NPort Discovery State Machine */
2601
2602/* There are 4 different double linked lists nodelist entries can reside on.
2603 * The plogi list and adisc list are used when Link Up discovery or RSCN
2604 * processing is needed. Each list holds the nodes that we will send PLOGI
2605 * or ADISC on. These lists will keep track of what nodes will be effected
2606 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
2607 * The unmapped_list will contain all nodes that we have successfully logged
2608 * into at the Fibre Channel level. The mapped_list will contain all nodes
2609 * that are mapped FCP targets.
2610 */
2611/*
2612 * The bind list is a list of undiscovered (potentially non-existent) nodes
2613 * that we have saved binding information on. This information is used when
2614 * nodes transition from the unmapped to the mapped list.
2615 */
2616/* For UNUSED_NODE state, the node has just been allocated .
2617 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
2618 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
2619 * and put on the unmapped list. For ADISC processing, the node is taken off
2620 * the ADISC list and placed on either the mapped or unmapped list (depending
2621 * on its previous state). Once on the unmapped list, a PRLI is issued and the
2622 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
2623 * changed to UNMAPPED_NODE. If the completion indicates a mapped
2624 * node, the node is taken off the unmapped list. The binding list is checked
2625 * for a valid binding, or a binding is automatically assigned. If binding
2626 * assignment is unsuccessful, the node is left on the unmapped list. If
2627 * binding assignment is successful, the associated binding list entry (if
2628 * any) is removed, and the node is placed on the mapped list.
2629 */
2630/*
2631 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
c01f3208 2632 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
dea3101e
JB		 2633 * expire, all effected nodes will receive a DEVICE_RM event.
2634 */
2635/*
2636 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
2637 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
2638 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
2639 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
2640 * we will first process the ADISC list. 32 entries are processed initially and
2641 * ADISC is initited for each one. Completions / Events for each node are
2642 * funnelled thru the state machine. As each node finishes ADISC processing, it
2643 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
2644 * waiting, and the ADISC list count is identically 0, then we are done. For
2645 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
2646 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
2647 * list. 32 entries are processed initially and PLOGI is initited for each one.
2648 * Completions / Events for each node are funnelled thru the state machine. As
2649 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
2650 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
2651 * indentically 0, then we are done. We have now completed discovery / RSCN
2652 * handling. Upon completion, ALL nodes should be on either the mapped or
2653 * unmapped lists.
2654 */
2655
2656static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
2e0fef85 2657 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
dea3101e
JB		 2658 /* Action routine Event Current State */
2659 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2660 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2661 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2662 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2663 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2664 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2665 lpfc_disc_illegal, /* CMPL_PLOGI */
2666 lpfc_disc_illegal, /* CMPL_PRLI */
2667 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2668 lpfc_disc_illegal, /* CMPL_ADISC */
2669 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2670 lpfc_device_rm_unused_node, /* DEVICE_RM */
df9e1b59 2671 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */
dea3101e
JB		 2672
2673 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
92d7f7b0 2674 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
c9f8735b 2675 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
dea3101e
JB		 2676 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2677 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2678 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2679 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2680 lpfc_disc_illegal, /* CMPL_PRLI */
0ff10d46 2681 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
dea3101e 2682 lpfc_disc_illegal, /* CMPL_ADISC */
0ff10d46 2683 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
dea3101e
JB		 2684 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2685 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2686
2687 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
2688 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
2689 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
2690 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
2691 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
2692 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
2693 lpfc_disc_illegal, /* CMPL_PLOGI */
2694 lpfc_disc_illegal, /* CMPL_PRLI */
2695 lpfc_disc_illegal, /* CMPL_LOGO */
2696 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
2697 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2698 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
2699 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
2700
2701 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
2702 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
2703 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
2704 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
2705 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
2706 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
87af33fe 2707 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
dea3101e
JB		 2708 lpfc_disc_illegal, /* CMPL_PRLI */
2709 lpfc_disc_illegal, /* CMPL_LOGO */
2710 lpfc_disc_illegal, /* CMPL_ADISC */
2711 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
2712 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
2713 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
2714
2715 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
2716 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
2717 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
2718 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
2719 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
2720 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
87af33fe 2721 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
dea3101e
JB		 2722 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
2723 lpfc_disc_illegal, /* CMPL_LOGO */
2724 lpfc_disc_illegal, /* CMPL_ADISC */
2725 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2726 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2727 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2728
086a345f
JS		 2729 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */
2730 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */
2731 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */
2732 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */
2733 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */
2734 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */
2735 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
2736 lpfc_disc_illegal, /* CMPL_PRLI */
2737 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */
2738 lpfc_disc_illegal, /* CMPL_ADISC */
2739 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2740 lpfc_device_rm_logo_issue, /* DEVICE_RM */
2741 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */
2742
dea3101e
JB		 2743 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2744 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2745 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2746 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2747 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2748 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
2749 lpfc_disc_illegal, /* CMPL_PLOGI */
2750 lpfc_disc_illegal, /* CMPL_PRLI */
2751 lpfc_disc_illegal, /* CMPL_LOGO */
2752 lpfc_disc_illegal, /* CMPL_ADISC */
2753 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2754 lpfc_disc_illegal, /* DEVICE_RM */
2755 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2756
2757 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2758 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2759 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2760 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2761 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2762 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2763 lpfc_disc_illegal, /* CMPL_PLOGI */
2764 lpfc_disc_illegal, /* CMPL_PRLI */
2765 lpfc_disc_illegal, /* CMPL_LOGO */
2766 lpfc_disc_illegal, /* CMPL_ADISC */
2767 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2768 lpfc_disc_illegal, /* DEVICE_RM */
2769 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2770
2771 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2772 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2773 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2774 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2775 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2776 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
c9f8735b
JW		 2777 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2778 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
dea3101e 2779 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
c9f8735b 2780 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
dea3101e
JB		 2781 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2782 lpfc_device_rm_npr_node, /* DEVICE_RM */
2783 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2784};
2785
2786int
2e0fef85
JS		 2787lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2788 void *arg, uint32_t evt)
dea3101e
JB		 2789{
2790 uint32_t cur_state, rc;
2e0fef85 2791 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
dea3101e 2792 uint32_t);
e47c9093
JS		 2793 uint32_t got_ndlp = 0;
2794
2795 if (lpfc_nlp_get(ndlp))
2796 got_ndlp = 1;
dea3101e 2797
dea3101e
JB		 2798 cur_state = ndlp->nlp_state;
2799
2800 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
e8b62011
JS		 2801 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2802 "0211 DSM in event x%x on NPort x%x in "
2803 "state %d Data: x%x\n",
2804 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
dea3101e 2805
858c9f6c
JS		 2806 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2807 "DSM in: evt:%d ste:%d did:x%x",
2808 evt, cur_state, ndlp->nlp_DID);
2809
dea3101e 2810 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2e0fef85 2811 rc = (func) (vport, ndlp, arg, evt);
dea3101e
JB		 2812
2813 /* DSM out state <rc> on NPort <nlp_DID> */
e47c9093
JS		 2814 if (got_ndlp) {
2815 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
e8b62011
JS		 2816 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2817 rc, ndlp->nlp_DID, ndlp->nlp_flag);
dea3101e 2818
e47c9093
JS		 2819 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2820 "DSM out: ste:%d did:x%x flg:x%x",
2821 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2822 /* Decrement the ndlp reference count held for this function */
2823 lpfc_nlp_put(ndlp);
2824 } else {
2825 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
d7c255b2 2826 "0213 DSM out state %d on NPort free\n", rc);
858c9f6c 2827
e47c9093
JS		 2828 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2829 "DSM out: ste:%d did:x%x flg:x%x",
2830 rc, 0, 0);
2831 }
dea3101e 2832
c9f8735b 2833 return rc;
dea3101e 2834}
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