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[SCSI] lpfc 8.2.5 : Correct ndlp referencing issues
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_nportdisc.c
CommitLineData
92d7f7b0 1 /*******************************************************************
dea3101e 2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
e47c9093 4 * Copyright (C) 2004-2008 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
23#include <linux/pci.h>
24#include <linux/interrupt.h>
25
91886523 26#include <scsi/scsi.h>
dea3101e 27#include <scsi/scsi_device.h>
28#include <scsi/scsi_host.h>
29#include <scsi/scsi_transport_fc.h>
30
31#include "lpfc_hw.h"
32#include "lpfc_sli.h"
33#include "lpfc_disc.h"
34#include "lpfc_scsi.h"
35#include "lpfc.h"
36#include "lpfc_logmsg.h"
37#include "lpfc_crtn.h"
92d7f7b0 38#include "lpfc_vport.h"
858c9f6c 39#include "lpfc_debugfs.h"
dea3101e 40
41
42/* Called to verify a rcv'ed ADISC was intended for us. */
43static int
2e0fef85
JS		 44lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
45 struct lpfc_name *nn, struct lpfc_name *pn)
dea3101e 46{
47 /* Compare the ADISC rsp WWNN / WWPN matches our internal node
48 * table entry for that node.
49 */
2e0fef85 50 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)))
c9f8735b 51 return 0;
dea3101e 52
2e0fef85 53 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)))
c9f8735b 54 return 0;
dea3101e 55
56 /* we match, return success */
c9f8735b 57 return 1;
dea3101e 58}
59
dea3101e 60int
2e0fef85
JS		 61lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
62 struct serv_parm * sp, uint32_t class)
dea3101e 63{
2e0fef85 64 volatile struct serv_parm *hsp = &vport->fc_sparam;
2fb70f79
JSEC		 65 uint16_t hsp_value, ssp_value = 0;
66
67 /*
68 * The receive data field size and buffer-to-buffer receive data field
69 * size entries are 16 bits but are represented as two 8-bit fields in
70 * the driver data structure to account for rsvd bits and other control
71 * bits. Reconstruct and compare the fields as a 16-bit values before
72 * correcting the byte values.
73 */
dea3101e 74 if (sp->cls1.classValid) {
2fb70f79
JSEC		 75 hsp_value = (hsp->cls1.rcvDataSizeMsb << 8) |
76 hsp->cls1.rcvDataSizeLsb;
77 ssp_value = (sp->cls1.rcvDataSizeMsb << 8) |
78 sp->cls1.rcvDataSizeLsb;
92d7f7b0
JS		 79 if (!ssp_value)
80 goto bad_service_param;
2fb70f79 81 if (ssp_value > hsp_value) {
dea3101e 82 sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb;
2fb70f79
JSEC		 83 sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb;
84 }
dea3101e 85 } else if (class == CLASS1) {
92d7f7b0 86 goto bad_service_param;
dea3101e 87 }
88
89 if (sp->cls2.classValid) {
2fb70f79
JSEC		 90 hsp_value = (hsp->cls2.rcvDataSizeMsb << 8) |
91 hsp->cls2.rcvDataSizeLsb;
92 ssp_value = (sp->cls2.rcvDataSizeMsb << 8) |
93 sp->cls2.rcvDataSizeLsb;
92d7f7b0
JS		 94 if (!ssp_value)
95 goto bad_service_param;
2fb70f79 96 if (ssp_value > hsp_value) {
dea3101e 97 sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb;
2fb70f79
JSEC		 98 sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb;
99 }
dea3101e 100 } else if (class == CLASS2) {
92d7f7b0 101 goto bad_service_param;
dea3101e 102 }
103
104 if (sp->cls3.classValid) {
2fb70f79
JSEC		 105 hsp_value = (hsp->cls3.rcvDataSizeMsb << 8) |
106 hsp->cls3.rcvDataSizeLsb;
107 ssp_value = (sp->cls3.rcvDataSizeMsb << 8) |
108 sp->cls3.rcvDataSizeLsb;
92d7f7b0
JS		 109 if (!ssp_value)
110 goto bad_service_param;
2fb70f79 111 if (ssp_value > hsp_value) {
dea3101e 112 sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb;
2fb70f79
JSEC		 113 sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb;
114 }
dea3101e 115 } else if (class == CLASS3) {
92d7f7b0 116 goto bad_service_param;
dea3101e 117 }
118
2fb70f79
JSEC		 119 /*
120 * Preserve the upper four bits of the MSB from the PLOGI response.
121 * These bits contain the Buffer-to-Buffer State Change Number
122 * from the target and need to be passed to the FW.
123 */
124 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
125 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
126 if (ssp_value > hsp_value) {
dea3101e 127 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
2fb70f79
JSEC		 128 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
129 (hsp->cmn.bbRcvSizeMsb & 0x0F);
130 }
dea3101e 131
dea3101e 132 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
133 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
2fb70f79 134 return 1;
92d7f7b0 135bad_service_param:
e8b62011
JS		 136 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
137 "0207 Device %x "
138 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
139 "invalid service parameters. Ignoring device.\n",
140 ndlp->nlp_DID,
141 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
142 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
143 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
144 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
92d7f7b0 145 return 0;
dea3101e 146}
147
148static void *
2e0fef85 149lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
92d7f7b0 150 struct lpfc_iocbq *rspiocb)
dea3101e 151{
152 struct lpfc_dmabuf *pcmd, *prsp;
153 uint32_t *lp;
154 void *ptr = NULL;
155 IOCB_t *irsp;
156
157 irsp = &rspiocb->iocb;
158 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
159
160 /* For lpfc_els_abort, context2 could be zero'ed to delay
161 * freeing associated memory till after ABTS completes.
162 */
163 if (pcmd) {
164 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
165 list);
166 if (prsp) {
167 lp = (uint32_t *) prsp->virt;
168 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
169 }
2fe165b6 170 } else {
dea3101e 171 /* Force ulpStatus error since we are returning NULL ptr */
172 if (!(irsp->ulpStatus)) {
173 irsp->ulpStatus = IOSTAT_LOCAL_REJECT;
174 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED;
175 }
176 ptr = NULL;
177 }
c9f8735b 178 return ptr;
dea3101e 179}
180
181
182/*
183 * Free resources / clean up outstanding I/Os
184 * associated with a LPFC_NODELIST entry. This
185 * routine effectively results in a "software abort".
186 */
187int
2e0fef85 188lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
dea3101e 189{
2534ba75 190 LIST_HEAD(completions);
2e0fef85
JS		 191 struct lpfc_sli *psli = &phba->sli;
192 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING];
dea3101e 193 struct lpfc_iocbq *iocb, *next_iocb;
2534ba75 194 IOCB_t *cmd;
dea3101e 195
196 /* Abort outstanding I/O on NPort <nlp_DID> */
e8b62011
JS		 197 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
198 "0205 Abort outstanding I/O on NPort x%x "
199 "Data: x%x x%x x%x\n",
200 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
201 ndlp->nlp_rpi);
92d7f7b0
JS		 202
203 lpfc_fabric_abort_nport(ndlp);
dea3101e 204
dea3101e 205 /* First check the txq */
2e0fef85 206 spin_lock_irq(&phba->hbalock);
2534ba75 207 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
858c9f6c 208 /* Check to see if iocb matches the nport we are looking for */
2534ba75 209 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
858c9f6c 210 /* It matches, so deque and call compl with anp error */
2534ba75
JS		 211 list_move_tail(&iocb->list, &completions);
212 pring->txq_cnt--;
dea3101e 213 }
2534ba75 214 }
dea3101e 215
dea3101e 216 /* Next check the txcmplq */
07951076 217 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
858c9f6c 218 /* Check to see if iocb matches the nport we are looking for */
92d7f7b0 219 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
07951076 220 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
92d7f7b0 221 }
07951076 222 }
2e0fef85 223 spin_unlock_irq(&phba->hbalock);
dea3101e 224
2534ba75
JS		 225 while (!list_empty(&completions)) {
226 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
227 cmd = &iocb->iocb;
92d7f7b0 228 list_del_init(&iocb->list);
2534ba75 229
2e0fef85
JS		 230 if (!iocb->iocb_cmpl)
231 lpfc_sli_release_iocbq(phba, iocb);
232 else {
2534ba75
JS		 233 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
234 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
235 (iocb->iocb_cmpl) (phba, iocb, iocb);
2e0fef85 236 }
2534ba75
JS		 237 }
238
dea3101e 239 /* If we are delaying issuing an ELS command, cancel it */
fdcebe28 240 if (ndlp->nlp_flag & NLP_DELAY_TMO)
2e0fef85 241 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
c9f8735b 242 return 0;
dea3101e 243}
244
245static int
2e0fef85 246lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
92d7f7b0 247 struct lpfc_iocbq *cmdiocb)
dea3101e 248{
2e0fef85
JS		 249 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
250 struct lpfc_hba *phba = vport->phba;
dea3101e 251 struct lpfc_dmabuf *pcmd;
e47c9093 252 struct lpfc_work_evt *evtp;
dea3101e 253 uint32_t *lp;
254 IOCB_t *icmd;
255 struct serv_parm *sp;
256 LPFC_MBOXQ_t *mbox;
257 struct ls_rjt stat;
258 int rc;
259
260 memset(&stat, 0, sizeof (struct ls_rjt));
2e0fef85 261 if (vport->port_state <= LPFC_FLOGI) {
dea3101e 262 /* Before responding to PLOGI, check for pt2pt mode.
263 * If we are pt2pt, with an outstanding FLOGI, abort
264 * the FLOGI and resend it first.
265 */
2e0fef85 266 if (vport->fc_flag & FC_PT2PT) {
92d7f7b0 267 lpfc_els_abort_flogi(phba);
2e0fef85 268 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
dea3101e 269 /* If the other side is supposed to initiate
270 * the PLOGI anyway, just ACC it now and
271 * move on with discovery.
272 */
273 phba->fc_edtov = FF_DEF_EDTOV;
274 phba->fc_ratov = FF_DEF_RATOV;
275 /* Start discovery - this should just do
276 CLEAR_LA */
2e0fef85 277 lpfc_disc_start(vport);
ed957684 278 } else
2e0fef85 279 lpfc_initial_flogi(vport);
2fe165b6 280 } else {
dea3101e 281 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
282 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2e0fef85 283 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
858c9f6c 284 ndlp, NULL);
dea3101e 285 return 0;
286 }
287 }
288 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
289 lp = (uint32_t *) pcmd->virt;
290 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
a8adb832
JS		 291 if (wwn_to_u64(sp->portName.u.wwn) == 0) {
292 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
293 "0140 PLOGI Reject: invalid nname\n");
294 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
295 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
296 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
297 NULL);
298 return 0;
299 }
300 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
301 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
302 "0141 PLOGI Reject: invalid pname\n");
303 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
304 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
305 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
306 NULL);
307 return 0;
308 }
2e0fef85 309 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3) == 0)) {
dea3101e 310 /* Reject this request because invalid parameters */
311 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
312 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
858c9f6c
JS		 313 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
314 NULL);
c9f8735b 315 return 0;
dea3101e 316 }
317 icmd = &cmdiocb->iocb;
318
319 /* PLOGI chkparm OK */
e8b62011
JS		 320 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
321 "0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
322 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
323 ndlp->nlp_rpi);
dea3101e 324
3de2a653 325 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
dea3101e 326 ndlp->nlp_fcp_info |= CLASS2;
ed957684 327 else
dea3101e 328 ndlp->nlp_fcp_info |= CLASS3;
2e0fef85 329
dea3101e 330 ndlp->nlp_class_sup = 0;
331 if (sp->cls1.classValid)
332 ndlp->nlp_class_sup |= FC_COS_CLASS1;
333 if (sp->cls2.classValid)
334 ndlp->nlp_class_sup |= FC_COS_CLASS2;
335 if (sp->cls3.classValid)
336 ndlp->nlp_class_sup |= FC_COS_CLASS3;
337 if (sp->cls4.classValid)
338 ndlp->nlp_class_sup |= FC_COS_CLASS4;
339 ndlp->nlp_maxframe =
340 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
341
342 /* no need to reg_login if we are already in one of these states */
2fe165b6 343 switch (ndlp->nlp_state) {
dea3101e 344 case NLP_STE_NPR_NODE:
345 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
346 break;
347 case NLP_STE_REG_LOGIN_ISSUE:
348 case NLP_STE_PRLI_ISSUE:
349 case NLP_STE_UNMAPPED_NODE:
350 case NLP_STE_MAPPED_NODE:
51ef4c26 351 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
c9f8735b 352 return 1;
dea3101e 353 }
354
92d7f7b0
JS		 355 if ((vport->fc_flag & FC_PT2PT) &&
356 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
dea3101e 357 /* rcv'ed PLOGI decides what our NPortId will be */
2e0fef85 358 vport->fc_myDID = icmd->un.rcvels.parmRo;
dea3101e 359 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
360 if (mbox == NULL)
361 goto out;
362 lpfc_config_link(phba, mbox);
363 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
ed957684 364 mbox->vport = vport;
0b727fea 365 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
dea3101e 366 if (rc == MBX_NOT_FINISHED) {
92d7f7b0 367 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 368 goto out;
369 }
370
2e0fef85 371 lpfc_can_disctmo(vport);
dea3101e 372 }
373 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2e0fef85 374 if (!mbox)
dea3101e 375 goto out;
376
92d7f7b0
JS		 377 rc = lpfc_reg_login(phba, vport->vpi, icmd->un.rcvels.remoteID,
378 (uint8_t *) sp, mbox, 0);
2e0fef85
JS		 379 if (rc) {
380 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 381 goto out;
382 }
383
384 /* ACC PLOGI rsp command needs to execute first,
385 * queue this mbox command to be processed later.
386 */
387 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
329f9bc7
JS		 388 /*
389 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
390 * command issued in lpfc_cmpl_els_acc().
391 */
2e0fef85
JS		 392 mbox->vport = vport;
393 spin_lock_irq(shost->host_lock);
5024ab17 394 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
2e0fef85 395 spin_unlock_irq(shost->host_lock);
dea3101e 396
33ccf8d1
JS		 397 /*
398 * If there is an outstanding PLOGI issued, abort it before
399 * sending ACC rsp for received PLOGI. If pending plogi
400 * is not canceled here, the plogi will be rejected by
401 * remote port and will be retried. On a configuration with
402 * single discovery thread, this will cause a huge delay in
403 * discovery. Also this will cause multiple state machines
404 * running in parallel for this node.
405 */
406 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
407 /* software abort outstanding PLOGI */
07951076 408 lpfc_els_abort(phba, ndlp);
33ccf8d1
JS		 409 }
410
858c9f6c 411 if ((vport->port_type == LPFC_NPIV_PORT &&
3de2a653 412 vport->cfg_restrict_login)) {
858c9f6c
JS		 413
414 /* In order to preserve RPIs, we want to cleanup
415 * the default RPI the firmware created to rcv
416 * this ELS request. The only way to do this is
417 * to register, then unregister the RPI.
418 */
419 spin_lock_irq(shost->host_lock);
420 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
421 spin_unlock_irq(shost->host_lock);
422 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
423 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
424 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
425 ndlp, mbox);
426 return 1;
427 }
87af33fe
JS		 428
429 /* If the remote NPort logs into us, before we can initiate
430 * discovery to them, cleanup the NPort from discovery accordingly.
431 */
432 if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
433 spin_lock_irq(shost->host_lock);
434 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
435 spin_unlock_irq(shost->host_lock);
436 del_timer_sync(&ndlp->nlp_delayfunc);
437 ndlp->nlp_last_elscmd = 0;
438
e47c9093 439 if (!list_empty(&ndlp->els_retry_evt.evt_listp)) {
87af33fe 440 list_del_init(&ndlp->els_retry_evt.evt_listp);
e47c9093
JS		 441 /* Decrement ndlp reference count held for the
442 * delayed retry
443 */
444 evtp = &ndlp->els_retry_evt;
445 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
446 }
87af33fe
JS		 447
448 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
449 spin_lock_irq(shost->host_lock);
450 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
451 spin_unlock_irq(shost->host_lock);
0ff10d46
JS		 452
453 if ((ndlp->nlp_flag & NLP_ADISC_SND) &&
454 (vport->num_disc_nodes)) {
455 /* Check to see if there are more
456 * ADISCs to be sent
457 */
458 lpfc_more_adisc(vport);
459
460 if ((vport->num_disc_nodes == 0) &&
461 (vport->fc_npr_cnt))
462 lpfc_els_disc_plogi(vport);
463
464 if (vport->num_disc_nodes == 0) {
465 spin_lock_irq(shost->host_lock);
466 vport->fc_flag &= ~FC_NDISC_ACTIVE;
467 spin_unlock_irq(shost->host_lock);
468 lpfc_can_disctmo(vport);
469 lpfc_end_rscn(vport);
470 }
471 }
472 else if (vport->num_disc_nodes) {
87af33fe
JS		 473 /* Check to see if there are more
474 * PLOGIs to be sent
475 */
476 lpfc_more_plogi(vport);
477
478 if (vport->num_disc_nodes == 0) {
479 spin_lock_irq(shost->host_lock);
480 vport->fc_flag &= ~FC_NDISC_ACTIVE;
481 spin_unlock_irq(shost->host_lock);
482 lpfc_can_disctmo(vport);
483 lpfc_end_rscn(vport);
484 }
485 }
486 }
487 }
488
51ef4c26 489 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox);
c9f8735b 490 return 1;
dea3101e 491
492out:
493 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
494 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
858c9f6c 495 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
c9f8735b 496 return 0;
dea3101e 497}
498
499static int
2e0fef85 500lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e 501 struct lpfc_iocbq *cmdiocb)
502{
2e0fef85 503 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 504 struct lpfc_dmabuf *pcmd;
2e0fef85
JS		 505 struct serv_parm *sp;
506 struct lpfc_name *pnn, *ppn;
dea3101e 507 struct ls_rjt stat;
508 ADISC *ap;
509 IOCB_t *icmd;
510 uint32_t *lp;
511 uint32_t cmd;
512
513 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
514 lp = (uint32_t *) pcmd->virt;
515
516 cmd = *lp++;
517 if (cmd == ELS_CMD_ADISC) {
518 ap = (ADISC *) lp;
519 pnn = (struct lpfc_name *) & ap->nodeName;
520 ppn = (struct lpfc_name *) & ap->portName;
521 } else {
522 sp = (struct serv_parm *) lp;
523 pnn = (struct lpfc_name *) & sp->nodeName;
524 ppn = (struct lpfc_name *) & sp->portName;
525 }
526
527 icmd = &cmdiocb->iocb;
2e0fef85 528 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
dea3101e 529 if (cmd == ELS_CMD_ADISC) {
2e0fef85 530 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
2fe165b6 531 } else {
2e0fef85 532 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp,
51ef4c26 533 NULL);
dea3101e 534 }
c9f8735b 535 return 1;
dea3101e 536 }
537 /* Reject this request because invalid parameters */
538 stat.un.b.lsRjtRsvd0 = 0;
539 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
540 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
541 stat.un.b.vendorUnique = 0;
858c9f6c 542 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
dea3101e 543
dea3101e 544 /* 1 sec timeout */
545 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
546
2e0fef85 547 spin_lock_irq(shost->host_lock);
dea3101e 548 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 549 spin_unlock_irq(shost->host_lock);
5024ab17
JW		 550 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
551 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85 552 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
c9f8735b 553 return 0;
dea3101e 554}
555
556static int
2e0fef85
JS		 557lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
558 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
dea3101e 559{
2e0fef85
JS		 560 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
561
562 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
dea3101e 563 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
564 * PLOGIs during LOGO storms from a device.
565 */
2e0fef85 566 spin_lock_irq(shost->host_lock);
dea3101e 567 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 568 spin_unlock_irq(shost->host_lock);
82d9a2a2 569 if (els_cmd == ELS_CMD_PRLO)
51ef4c26 570 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
82d9a2a2 571 else
51ef4c26 572 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 573
c9f8735b 574 if (!(ndlp->nlp_type & NLP_FABRIC) ||
92d7f7b0 575 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
dea3101e 576 /* Only try to re-login if this is NOT a Fabric Node */
dea3101e 577 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2e0fef85 578 spin_lock_irq(shost->host_lock);
dea3101e 579 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 580 spin_unlock_irq(shost->host_lock);
dea3101e 581
5024ab17 582 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b 583 }
87af33fe
JS		 584 ndlp->nlp_prev_state = ndlp->nlp_state;
585 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 586
2e0fef85 587 spin_lock_irq(shost->host_lock);
dea3101e 588 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 589 spin_unlock_irq(shost->host_lock);
dea3101e 590 /* The driver has to wait until the ACC completes before it continues
591 * processing the LOGO. The action will resume in
592 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
593 * unreg_login, the driver waits so the ACC does not get aborted.
594 */
c9f8735b 595 return 0;
dea3101e 596}
597
598static void
2e0fef85
JS		 599lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
600 struct lpfc_iocbq *cmdiocb)
dea3101e 601{
602 struct lpfc_dmabuf *pcmd;
603 uint32_t *lp;
604 PRLI *npr;
605 struct fc_rport *rport = ndlp->rport;
606 u32 roles;
607
608 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
609 lp = (uint32_t *) pcmd->virt;
610 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
611
612 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
613 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
92d7f7b0 614 if (npr->prliType == PRLI_FCP_TYPE) {
dea3101e 615 if (npr->initiatorFunc)
616 ndlp->nlp_type |= NLP_FCP_INITIATOR;
617 if (npr->targetFunc)
618 ndlp->nlp_type |= NLP_FCP_TARGET;
619 if (npr->Retry)
620 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
621 }
622 if (rport) {
623 /* We need to update the rport role values */
624 roles = FC_RPORT_ROLE_UNKNOWN;
625 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
626 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
627 if (ndlp->nlp_type & NLP_FCP_TARGET)
628 roles |= FC_RPORT_ROLE_FCP_TARGET;
858c9f6c
JS		 629
630 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
631 "rport rolechg: role:x%x did:x%x flg:x%x",
632 roles, ndlp->nlp_DID, ndlp->nlp_flag);
633
dea3101e 634 fc_remote_port_rolechg(rport, roles);
635 }
636}
637
638static uint32_t
2e0fef85 639lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 640{
2e0fef85 641 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 642
51ef4c26
JS		 643 if (!ndlp->nlp_rpi) {
644 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
645 return 0;
646 }
647
dea3101e 648 /* Check config parameter use-adisc or FCP-2 */
3de2a653 649 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
92d7f7b0
JS		 650 ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) {
651 spin_lock_irq(shost->host_lock);
652 ndlp->nlp_flag |= NLP_NPR_ADISC;
653 spin_unlock_irq(shost->host_lock);
654 return 1;
655 }
656 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
657 lpfc_unreg_rpi(vport, ndlp);
658 return 0;
dea3101e 659}
660
661static uint32_t
2e0fef85
JS		 662lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
663 void *arg, uint32_t evt)
dea3101e 664{
e8b62011 665 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
e47c9093 666 "0271 Illegal State Transition: node x%x "
e8b62011
JS		 667 "event x%x, state x%x Data: x%x x%x\n",
668 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
669 ndlp->nlp_flag);
c9f8735b 670 return ndlp->nlp_state;
dea3101e 671}
672
87af33fe
JS		 673static uint32_t
674lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
675 void *arg, uint32_t evt)
676{
677 /* This transition is only legal if we previously
678 * rcv'ed a PLOGI. Since we don't want 2 discovery threads
679 * working on the same NPortID, do nothing for this thread
680 * to stop it.
681 */
682 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
683 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
e47c9093 684 "0272 Illegal State Transition: node x%x "
87af33fe
JS		 685 "event x%x, state x%x Data: x%x x%x\n",
686 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
687 ndlp->nlp_flag);
688 }
689 return ndlp->nlp_state;
690}
691
dea3101e 692/* Start of Discovery State Machine routines */
693
694static uint32_t
2e0fef85
JS		 695lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
696 void *arg, uint32_t evt)
dea3101e 697{
698 struct lpfc_iocbq *cmdiocb;
699
700 cmdiocb = (struct lpfc_iocbq *) arg;
701
2e0fef85 702 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
c9f8735b 703 return ndlp->nlp_state;
dea3101e 704 }
c9f8735b 705 return NLP_STE_FREED_NODE;
dea3101e 706}
707
708static uint32_t
2e0fef85
JS		 709lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
710 void *arg, uint32_t evt)
dea3101e 711{
2e0fef85 712 lpfc_issue_els_logo(vport, ndlp, 0);
c9f8735b 713 return ndlp->nlp_state;
dea3101e 714}
715
716static uint32_t
2e0fef85
JS		 717lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
718 void *arg, uint32_t evt)
dea3101e 719{
2e0fef85
JS		 720 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
721 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 722
2e0fef85 723 spin_lock_irq(shost->host_lock);
dea3101e 724 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 725 spin_unlock_irq(shost->host_lock);
51ef4c26 726 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 727
c9f8735b 728 return ndlp->nlp_state;
dea3101e 729}
730
731static uint32_t
2e0fef85
JS		 732lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
733 void *arg, uint32_t evt)
dea3101e 734{
c9f8735b 735 return NLP_STE_FREED_NODE;
dea3101e 736}
737
738static uint32_t
2e0fef85
JS		 739lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
740 void *arg, uint32_t evt)
dea3101e 741{
c9f8735b 742 return NLP_STE_FREED_NODE;
dea3101e 743}
744
745static uint32_t
2e0fef85 746lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e 747 void *arg, uint32_t evt)
748{
2e0fef85 749 struct lpfc_hba *phba = vport->phba;
dea3101e 750 struct lpfc_iocbq *cmdiocb = arg;
2e0fef85
JS		 751 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
752 uint32_t *lp = (uint32_t *) pcmd->virt;
753 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
dea3101e 754 struct ls_rjt stat;
755 int port_cmp;
756
dea3101e 757 memset(&stat, 0, sizeof (struct ls_rjt));
758
759 /* For a PLOGI, we only accept if our portname is less
760 * than the remote portname.
761 */
762 phba->fc_stat.elsLogiCol++;
2e0fef85 763 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
92d7f7b0 764 sizeof(struct lpfc_name));
dea3101e 765
766 if (port_cmp >= 0) {
767 /* Reject this request because the remote node will accept
768 ours */
769 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
770 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
858c9f6c
JS		 771 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
772 NULL);
2fe165b6 773 } else {
2e0fef85
JS		 774 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
775 } /* If our portname was less */
dea3101e 776
c9f8735b
JW		 777 return ndlp->nlp_state;
778}
779
92d7f7b0
JS		 780static uint32_t
781lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
782 void *arg, uint32_t evt)
783{
784 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
785 struct ls_rjt stat;
786
787 memset(&stat, 0, sizeof (struct ls_rjt));
788 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
789 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
858c9f6c 790 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
92d7f7b0
JS		 791 return ndlp->nlp_state;
792}
793
c9f8735b 794static uint32_t
2e0fef85
JS		 795lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
796 void *arg, uint32_t evt)
c9f8735b 797{
2e0fef85 798 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
c9f8735b 799
92d7f7b0 800 /* software abort outstanding PLOGI */
2e0fef85 801 lpfc_els_abort(vport->phba, ndlp);
c9f8735b 802
2e0fef85 803 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 804 return ndlp->nlp_state;
dea3101e 805}
806
807static uint32_t
2e0fef85
JS		 808lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
809 void *arg, uint32_t evt)
dea3101e 810{
2e0fef85
JS		 811 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
812 struct lpfc_hba *phba = vport->phba;
813 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 814
815 /* software abort outstanding PLOGI */
07951076 816 lpfc_els_abort(phba, ndlp);
dea3101e 817
818 if (evt == NLP_EVT_RCV_LOGO) {
51ef4c26 819 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2fe165b6 820 } else {
2e0fef85 821 lpfc_issue_els_logo(vport, ndlp, 0);
dea3101e 822 }
823
2e0fef85 824 /* Put ndlp in npr state set plogi timer for 1 sec */
5024ab17 825 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2e0fef85 826 spin_lock_irq(shost->host_lock);
5024ab17 827 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 828 spin_unlock_irq(shost->host_lock);
5024ab17
JW		 829 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
830 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
2e0fef85 831 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 832
c9f8735b 833 return ndlp->nlp_state;
dea3101e 834}
835
836static uint32_t
2e0fef85
JS		 837lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
838 struct lpfc_nodelist *ndlp,
839 void *arg,
dea3101e 840 uint32_t evt)
841{
2e0fef85 842 struct lpfc_hba *phba = vport->phba;
0ff10d46 843 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 844 struct lpfc_iocbq *cmdiocb, *rspiocb;
14691150 845 struct lpfc_dmabuf *pcmd, *prsp, *mp;
dea3101e 846 uint32_t *lp;
847 IOCB_t *irsp;
848 struct serv_parm *sp;
849 LPFC_MBOXQ_t *mbox;
850
851 cmdiocb = (struct lpfc_iocbq *) arg;
852 rspiocb = cmdiocb->context_un.rsp_iocb;
853
854 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
5024ab17 855 /* Recovery from PLOGI collision logic */
c9f8735b 856 return ndlp->nlp_state;
dea3101e 857 }
858
859 irsp = &rspiocb->iocb;
860
861 if (irsp->ulpStatus)
862 goto out;
863
864 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
865
2e0fef85 866 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
dea3101e 867
2e0fef85 868 lp = (uint32_t *) prsp->virt;
dea3101e 869 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
a8adb832
JS		 870 if (wwn_to_u64(sp->portName.u.wwn) == 0 ||
871 wwn_to_u64(sp->nodeName.u.wwn) == 0) {
872 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
873 "0142 PLOGI RSP: Invalid WWN.\n");
874 goto out;
875 }
2e0fef85 876 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3))
dea3101e 877 goto out;
dea3101e 878 /* PLOGI chkparm OK */
e8b62011
JS		 879 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
880 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
881 ndlp->nlp_DID, ndlp->nlp_state,
882 ndlp->nlp_flag, ndlp->nlp_rpi);
3de2a653 883 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
dea3101e 884 ndlp->nlp_fcp_info |= CLASS2;
2e0fef85 885 else
dea3101e 886 ndlp->nlp_fcp_info |= CLASS3;
2e0fef85 887
dea3101e 888 ndlp->nlp_class_sup = 0;
889 if (sp->cls1.classValid)
890 ndlp->nlp_class_sup |= FC_COS_CLASS1;
891 if (sp->cls2.classValid)
892 ndlp->nlp_class_sup |= FC_COS_CLASS2;
893 if (sp->cls3.classValid)
894 ndlp->nlp_class_sup |= FC_COS_CLASS3;
895 if (sp->cls4.classValid)
896 ndlp->nlp_class_sup |= FC_COS_CLASS4;
897 ndlp->nlp_maxframe =
2e0fef85 898 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
dea3101e 899
2e0fef85 900 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
92d7f7b0 901 if (!mbox) {
e8b62011
JS		 902 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
903 "0133 PLOGI: no memory for reg_login "
92d7f7b0 904 "Data: x%x x%x x%x x%x\n",
92d7f7b0
JS		 905 ndlp->nlp_DID, ndlp->nlp_state,
906 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e 907 goto out;
92d7f7b0 908 }
dea3101e 909
2e0fef85
JS		 910 lpfc_unreg_rpi(vport, ndlp);
911
92d7f7b0
JS		 912 if (lpfc_reg_login(phba, vport->vpi, irsp->un.elsreq64.remoteID,
913 (uint8_t *) sp, mbox, 0) == 0) {
2fe165b6 914 switch (ndlp->nlp_DID) {
dea3101e 915 case NameServer_DID:
de0c5b32 916 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
dea3101e 917 break;
918 case FDMI_DID:
de0c5b32 919 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
dea3101e 920 break;
921 default:
de0c5b32 922 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
dea3101e 923 }
329f9bc7 924 mbox->context2 = lpfc_nlp_get(ndlp);
2e0fef85 925 mbox->vport = vport;
0b727fea 926 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
dea3101e 927 != MBX_NOT_FINISHED) {
2e0fef85
JS		 928 lpfc_nlp_set_state(vport, ndlp,
929 NLP_STE_REG_LOGIN_ISSUE);
c9f8735b 930 return ndlp->nlp_state;
dea3101e 931 }
fa4066b6
JS		 932 /* decrement node reference count to the failed mbox
933 * command
934 */
329f9bc7 935 lpfc_nlp_put(ndlp);
92d7f7b0 936 mp = (struct lpfc_dmabuf *) mbox->context1;
14691150
JS		 937 lpfc_mbuf_free(phba, mp->virt, mp->phys);
938 kfree(mp);
dea3101e 939 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 940
e8b62011
JS		 941 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
942 "0134 PLOGI: cannot issue reg_login "
943 "Data: x%x x%x x%x x%x\n",
944 ndlp->nlp_DID, ndlp->nlp_state,
945 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e 946 } else {
947 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 948
e8b62011
JS		 949 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
950 "0135 PLOGI: cannot format reg_login "
951 "Data: x%x x%x x%x x%x\n",
952 ndlp->nlp_DID, ndlp->nlp_state,
953 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e 954 }
955
956
92d7f7b0
JS		 957out:
958 if (ndlp->nlp_DID == NameServer_DID) {
959 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 960 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
961 "0261 Cannot Register NameServer login\n");
92d7f7b0
JS		 962 }
963
0ff10d46 964 spin_lock_irq(shost->host_lock);
a8adb832 965 ndlp->nlp_flag |= NLP_DEFER_RM;
0ff10d46 966 spin_unlock_irq(shost->host_lock);
c9f8735b 967 return NLP_STE_FREED_NODE;
dea3101e 968}
969
0ff10d46
JS		 970static uint32_t
971lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
972 void *arg, uint32_t evt)
973{
974 return ndlp->nlp_state;
975}
976
977static uint32_t
978lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
979 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
980{
981 return ndlp->nlp_state;
982}
983
dea3101e 984static uint32_t
2e0fef85
JS		 985lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
986 void *arg, uint32_t evt)
dea3101e 987{
2e0fef85
JS		 988 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
989
990 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
991 spin_lock_irq(shost->host_lock);
a0f9b48d 992 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 993 spin_unlock_irq(shost->host_lock);
a0f9b48d 994 return ndlp->nlp_state;
2e0fef85 995 } else {
a0f9b48d 996 /* software abort outstanding PLOGI */
2e0fef85 997 lpfc_els_abort(vport->phba, ndlp);
dea3101e 998
2e0fef85 999 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1000 return NLP_STE_FREED_NODE;
1001 }
dea3101e 1002}
1003
1004static uint32_t
2e0fef85
JS		 1005lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
1006 struct lpfc_nodelist *ndlp,
1007 void *arg,
1008 uint32_t evt)
dea3101e 1009{
2e0fef85
JS		 1010 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1011 struct lpfc_hba *phba = vport->phba;
1012
92d7f7b0
JS		 1013 /* Don't do anything that will mess up processing of the
1014 * previous RSCN.
1015 */
1016 if (vport->fc_flag & FC_RSCN_DEFERRED)
1017 return ndlp->nlp_state;
1018
dea3101e 1019 /* software abort outstanding PLOGI */
07951076 1020 lpfc_els_abort(phba, ndlp);
dea3101e 1021
5024ab17 1022 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
2e0fef85 1023 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
92d7f7b0 1024 spin_lock_irq(shost->host_lock);
a0f9b48d 1025 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1026 spin_unlock_irq(shost->host_lock);
dea3101e 1027
c9f8735b 1028 return ndlp->nlp_state;
dea3101e 1029}
1030
1031static uint32_t
2e0fef85
JS		 1032lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1033 void *arg, uint32_t evt)
dea3101e 1034{
2e0fef85 1035 struct lpfc_hba *phba = vport->phba;
dea3101e 1036 struct lpfc_iocbq *cmdiocb;
1037
1038 /* software abort outstanding ADISC */
07951076 1039 lpfc_els_abort(phba, ndlp);
dea3101e 1040
1041 cmdiocb = (struct lpfc_iocbq *) arg;
1042
2e0fef85 1043 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb))
c9f8735b 1044 return ndlp->nlp_state;
2e0fef85 1045
5024ab17 1046 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1047 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1048 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
dea3101e 1049
c9f8735b 1050 return ndlp->nlp_state;
dea3101e 1051}
1052
1053static uint32_t
2e0fef85
JS		 1054lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1055 void *arg, uint32_t evt)
dea3101e 1056{
2e0fef85 1057 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1058
2e0fef85 1059 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1060 return ndlp->nlp_state;
dea3101e 1061}
1062
1063static uint32_t
2e0fef85
JS		 1064lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1065 void *arg, uint32_t evt)
dea3101e 1066{
2e0fef85 1067 struct lpfc_hba *phba = vport->phba;
dea3101e 1068 struct lpfc_iocbq *cmdiocb;
1069
1070 cmdiocb = (struct lpfc_iocbq *) arg;
1071
1072 /* software abort outstanding ADISC */
07951076 1073 lpfc_els_abort(phba, ndlp);
dea3101e 1074
2e0fef85 1075 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1076 return ndlp->nlp_state;
dea3101e 1077}
1078
1079static uint32_t
2e0fef85
JS		 1080lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
1081 struct lpfc_nodelist *ndlp,
1082 void *arg, uint32_t evt)
dea3101e 1083{
1084 struct lpfc_iocbq *cmdiocb;
1085
1086 cmdiocb = (struct lpfc_iocbq *) arg;
1087
2e0fef85 1088 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1089 return ndlp->nlp_state;
dea3101e 1090}
1091
1092static uint32_t
2e0fef85
JS		 1093lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1094 void *arg, uint32_t evt)
dea3101e 1095{
1096 struct lpfc_iocbq *cmdiocb;
1097
1098 cmdiocb = (struct lpfc_iocbq *) arg;
1099
1100 /* Treat like rcv logo */
2e0fef85 1101 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
c9f8735b 1102 return ndlp->nlp_state;
dea3101e 1103}
1104
1105static uint32_t
2e0fef85
JS		 1106lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1107 struct lpfc_nodelist *ndlp,
1108 void *arg, uint32_t evt)
dea3101e 1109{
2e0fef85
JS		 1110 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1111 struct lpfc_hba *phba = vport->phba;
dea3101e 1112 struct lpfc_iocbq *cmdiocb, *rspiocb;
1113 IOCB_t *irsp;
1114 ADISC *ap;
1115
1116 cmdiocb = (struct lpfc_iocbq *) arg;
1117 rspiocb = cmdiocb->context_un.rsp_iocb;
1118
1119 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1120 irsp = &rspiocb->iocb;
1121
1122 if ((irsp->ulpStatus) ||
92d7f7b0 1123 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
dea3101e 1124 /* 1 sec timeout */
1125 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
2e0fef85 1126 spin_lock_irq(shost->host_lock);
dea3101e 1127 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1128 spin_unlock_irq(shost->host_lock);
5024ab17 1129 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1130
2e0fef85
JS		 1131 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1132 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
dea3101e 1133
5024ab17 1134 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1135 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1136 lpfc_unreg_rpi(vport, ndlp);
c9f8735b 1137 return ndlp->nlp_state;
dea3101e 1138 }
5024ab17 1139
2501322e 1140 if (ndlp->nlp_type & NLP_FCP_TARGET) {
5024ab17 1141 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85 1142 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
2501322e 1143 } else {
5024ab17 1144 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85 1145 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2501322e 1146 }
c9f8735b 1147 return ndlp->nlp_state;
dea3101e 1148}
1149
1150static uint32_t
2e0fef85
JS		 1151lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1152 void *arg, uint32_t evt)
dea3101e 1153{
2e0fef85
JS		 1154 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1155
1156 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1157 spin_lock_irq(shost->host_lock);
a0f9b48d 1158 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1159 spin_unlock_irq(shost->host_lock);
a0f9b48d 1160 return ndlp->nlp_state;
2e0fef85 1161 } else {
a0f9b48d 1162 /* software abort outstanding ADISC */
2e0fef85 1163 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1164
2e0fef85 1165 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1166 return NLP_STE_FREED_NODE;
1167 }
dea3101e 1168}
1169
1170static uint32_t
2e0fef85
JS		 1171lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1172 struct lpfc_nodelist *ndlp,
1173 void *arg,
1174 uint32_t evt)
dea3101e 1175{
2e0fef85
JS		 1176 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1177 struct lpfc_hba *phba = vport->phba;
1178
92d7f7b0
JS		 1179 /* Don't do anything that will mess up processing of the
1180 * previous RSCN.
1181 */
1182 if (vport->fc_flag & FC_RSCN_DEFERRED)
1183 return ndlp->nlp_state;
1184
dea3101e 1185 /* software abort outstanding ADISC */
07951076 1186 lpfc_els_abort(phba, ndlp);
dea3101e 1187
5024ab17 1188 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1189 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1190 spin_lock_irq(shost->host_lock);
a0f9b48d 1191 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1192 spin_unlock_irq(shost->host_lock);
92d7f7b0 1193 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1194 return ndlp->nlp_state;
dea3101e 1195}
1196
1197static uint32_t
2e0fef85
JS		 1198lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1199 struct lpfc_nodelist *ndlp,
1200 void *arg,
dea3101e 1201 uint32_t evt)
1202{
2e0fef85 1203 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1204
2e0fef85 1205 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1206 return ndlp->nlp_state;
dea3101e 1207}
1208
1209static uint32_t
2e0fef85
JS		 1210lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1211 struct lpfc_nodelist *ndlp,
1212 void *arg,
dea3101e 1213 uint32_t evt)
1214{
2e0fef85 1215 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1216
2e0fef85 1217 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1218 return ndlp->nlp_state;
dea3101e 1219}
1220
1221static uint32_t
2e0fef85
JS		 1222lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1223 struct lpfc_nodelist *ndlp,
1224 void *arg,
dea3101e 1225 uint32_t evt)
1226{
2e0fef85
JS		 1227 struct lpfc_hba *phba = vport->phba;
1228 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
7054a606
JS		 1229 LPFC_MBOXQ_t *mb;
1230 LPFC_MBOXQ_t *nextmb;
1231 struct lpfc_dmabuf *mp;
dea3101e 1232
1233 cmdiocb = (struct lpfc_iocbq *) arg;
1234
7054a606
JS		 1235 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1236 if ((mb = phba->sli.mbox_active)) {
1237 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1238 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
92d7f7b0 1239 lpfc_nlp_put(ndlp);
7054a606
JS		 1240 mb->context2 = NULL;
1241 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1242 }
1243 }
1244
2e0fef85 1245 spin_lock_irq(&phba->hbalock);
7054a606
JS		 1246 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1247 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1248 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1249 mp = (struct lpfc_dmabuf *) (mb->context1);
1250 if (mp) {
98c9ea5c 1251 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
7054a606
JS		 1252 kfree(mp);
1253 }
92d7f7b0 1254 lpfc_nlp_put(ndlp);
7054a606
JS		 1255 list_del(&mb->list);
1256 mempool_free(mb, phba->mbox_mem_pool);
1257 }
1258 }
2e0fef85 1259 spin_unlock_irq(&phba->hbalock);
7054a606 1260
2e0fef85 1261 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1262 return ndlp->nlp_state;
dea3101e 1263}
1264
1265static uint32_t
2e0fef85
JS		 1266lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1267 struct lpfc_nodelist *ndlp,
1268 void *arg,
dea3101e 1269 uint32_t evt)
1270{
2e0fef85 1271 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1272
2e0fef85 1273 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1274 return ndlp->nlp_state;
dea3101e 1275}
1276
1277static uint32_t
2e0fef85
JS		 1278lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1279 struct lpfc_nodelist *ndlp,
1280 void *arg,
dea3101e 1281 uint32_t evt)
1282{
1283 struct lpfc_iocbq *cmdiocb;
1284
1285 cmdiocb = (struct lpfc_iocbq *) arg;
51ef4c26 1286 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1287 return ndlp->nlp_state;
dea3101e 1288}
1289
1290static uint32_t
2e0fef85
JS		 1291lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1292 struct lpfc_nodelist *ndlp,
1293 void *arg,
1294 uint32_t evt)
dea3101e 1295{
2e0fef85 1296 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85
JS		 1297 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1298 MAILBOX_t *mb = &pmb->mb;
1299 uint32_t did = mb->un.varWords[1];
dea3101e 1300
dea3101e 1301 if (mb->mbxStatus) {
1302 /* RegLogin failed */
e8b62011
JS		 1303 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1304 "0246 RegLogin failed Data: x%x x%x x%x\n",
2e0fef85 1305 did, mb->mbxStatus, vport->port_state);
d0e56dad
JS		 1306 /*
1307 * If RegLogin failed due to lack of HBA resources do not
1308 * retry discovery.
1309 */
1310 if (mb->mbxStatus == MBXERR_RPI_FULL) {
87af33fe
JS		 1311 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1312 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
d0e56dad
JS		 1313 return ndlp->nlp_state;
1314 }
1315
2e0fef85 1316 /* Put ndlp in npr state set plogi timer for 1 sec */
dea3101e 1317 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2e0fef85 1318 spin_lock_irq(shost->host_lock);
dea3101e 1319 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1320 spin_unlock_irq(shost->host_lock);
5024ab17 1321 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1322
2e0fef85 1323 lpfc_issue_els_logo(vport, ndlp, 0);
5024ab17 1324 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85 1325 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
c9f8735b 1326 return ndlp->nlp_state;
dea3101e 1327 }
1328
dea3101e 1329 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1330
1331 /* Only if we are not a fabric nport do we issue PRLI */
1332 if (!(ndlp->nlp_type & NLP_FABRIC)) {
5024ab17 1333 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85
JS		 1334 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1335 lpfc_issue_els_prli(vport, ndlp, 0);
dea3101e 1336 } else {
5024ab17 1337 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85 1338 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1339 }
c9f8735b 1340 return ndlp->nlp_state;
dea3101e 1341}
1342
1343static uint32_t
2e0fef85
JS		 1344lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1345 struct lpfc_nodelist *ndlp,
1346 void *arg,
dea3101e 1347 uint32_t evt)
1348{
2e0fef85
JS		 1349 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1350
1351 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1352 spin_lock_irq(shost->host_lock);
a0f9b48d 1353 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1354 spin_unlock_irq(shost->host_lock);
a0f9b48d 1355 return ndlp->nlp_state;
2e0fef85
JS		 1356 } else {
1357 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1358 return NLP_STE_FREED_NODE;
1359 }
dea3101e 1360}
1361
1362static uint32_t
2e0fef85
JS		 1363lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1364 struct lpfc_nodelist *ndlp,
1365 void *arg,
1366 uint32_t evt)
dea3101e 1367{
2e0fef85
JS		 1368 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1369
92d7f7b0
JS		 1370 /* Don't do anything that will mess up processing of the
1371 * previous RSCN.
1372 */
1373 if (vport->fc_flag & FC_RSCN_DEFERRED)
1374 return ndlp->nlp_state;
1375
5024ab17 1376 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85
JS		 1377 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1378 spin_lock_irq(shost->host_lock);
a0f9b48d 1379 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1380 spin_unlock_irq(shost->host_lock);
92d7f7b0 1381 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1382 return ndlp->nlp_state;
dea3101e 1383}
1384
1385static uint32_t
2e0fef85
JS		 1386lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1387 void *arg, uint32_t evt)
dea3101e 1388{
1389 struct lpfc_iocbq *cmdiocb;
1390
1391 cmdiocb = (struct lpfc_iocbq *) arg;
1392
2e0fef85 1393 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1394 return ndlp->nlp_state;
dea3101e 1395}
1396
1397static uint32_t
2e0fef85
JS		 1398lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1399 void *arg, uint32_t evt)
dea3101e 1400{
2e0fef85 1401 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1402
2e0fef85 1403 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1404 return ndlp->nlp_state;
dea3101e 1405}
1406
1407static uint32_t
2e0fef85
JS		 1408lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1409 void *arg, uint32_t evt)
dea3101e 1410{
2e0fef85 1411 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1412
1413 /* Software abort outstanding PRLI before sending acc */
2e0fef85 1414 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1415
2e0fef85 1416 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1417 return ndlp->nlp_state;
dea3101e 1418}
1419
1420static uint32_t
2e0fef85
JS		 1421lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1422 void *arg, uint32_t evt)
dea3101e 1423{
2e0fef85 1424 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1425
2e0fef85 1426 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1427 return ndlp->nlp_state;
dea3101e 1428}
1429
1430/* This routine is envoked when we rcv a PRLO request from a nport
1431 * we are logged into. We should send back a PRLO rsp setting the
1432 * appropriate bits.
1433 * NEXT STATE = PRLI_ISSUE
1434 */
1435static uint32_t
2e0fef85
JS		 1436lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1437 void *arg, uint32_t evt)
dea3101e 1438{
2e0fef85 1439 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1440
51ef4c26 1441 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1442 return ndlp->nlp_state;
dea3101e 1443}
1444
1445static uint32_t
2e0fef85
JS		 1446lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1447 void *arg, uint32_t evt)
dea3101e 1448{
92d7f7b0 1449 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 1450 struct lpfc_iocbq *cmdiocb, *rspiocb;
2e0fef85 1451 struct lpfc_hba *phba = vport->phba;
dea3101e 1452 IOCB_t *irsp;
1453 PRLI *npr;
1454
1455 cmdiocb = (struct lpfc_iocbq *) arg;
1456 rspiocb = cmdiocb->context_un.rsp_iocb;
1457 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1458
1459 irsp = &rspiocb->iocb;
1460 if (irsp->ulpStatus) {
858c9f6c 1461 if ((vport->port_type == LPFC_NPIV_PORT) &&
3de2a653 1462 vport->cfg_restrict_login) {
858c9f6c
JS		 1463 goto out;
1464 }
5024ab17 1465 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2e0fef85 1466 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
c9f8735b 1467 return ndlp->nlp_state;
dea3101e 1468 }
1469
1470 /* Check out PRLI rsp */
1471 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1472 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1473 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1474 (npr->prliType == PRLI_FCP_TYPE)) {
1475 if (npr->initiatorFunc)
1476 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1477 if (npr->targetFunc)
1478 ndlp->nlp_type |= NLP_FCP_TARGET;
1479 if (npr->Retry)
1480 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1481 }
92d7f7b0
JS		 1482 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1483 (vport->port_type == LPFC_NPIV_PORT) &&
3de2a653 1484 vport->cfg_restrict_login) {
858c9f6c 1485out:
92d7f7b0
JS		 1486 spin_lock_irq(shost->host_lock);
1487 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1488 spin_unlock_irq(shost->host_lock);
1489 lpfc_issue_els_logo(vport, ndlp, 0);
1490
1491 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
87af33fe 1492 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
92d7f7b0
JS		 1493 return ndlp->nlp_state;
1494 }
dea3101e 1495
5024ab17 1496 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
92d7f7b0
JS		 1497 if (ndlp->nlp_type & NLP_FCP_TARGET)
1498 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1499 else
1500 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
c9f8735b 1501 return ndlp->nlp_state;
dea3101e 1502}
1503
1504/*! lpfc_device_rm_prli_issue
92d7f7b0
JS		 1505 *
1506 * \pre
1507 * \post
1508 * \param phba
1509 * \param ndlp
1510 * \param arg
1511 * \param evt
1512 * \return uint32_t
1513 *
1514 * \b Description:
1515 * This routine is envoked when we a request to remove a nport we are in the
1516 * process of PRLIing. We should software abort outstanding prli, unreg
1517 * login, send a logout. We will change node state to UNUSED_NODE, put it
1518 * on plogi list so it can be freed when LOGO completes.
1519 *
1520 */
1521
dea3101e 1522static uint32_t
2e0fef85
JS		 1523lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1524 void *arg, uint32_t evt)
dea3101e 1525{
2e0fef85
JS		 1526 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1527
1528 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1529 spin_lock_irq(shost->host_lock);
a0f9b48d 1530 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1531 spin_unlock_irq(shost->host_lock);
a0f9b48d 1532 return ndlp->nlp_state;
2e0fef85 1533 } else {
a0f9b48d 1534 /* software abort outstanding PLOGI */
2e0fef85 1535 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1536
2e0fef85 1537 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1538 return NLP_STE_FREED_NODE;
1539 }
dea3101e 1540}
1541
1542
1543/*! lpfc_device_recov_prli_issue
92d7f7b0
JS		 1544 *
1545 * \pre
1546 * \post
1547 * \param phba
1548 * \param ndlp
1549 * \param arg
1550 * \param evt
1551 * \return uint32_t
1552 *
1553 * \b Description:
1554 * The routine is envoked when the state of a device is unknown, like
1555 * during a link down. We should remove the nodelist entry from the
1556 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1557 * outstanding PRLI command, then free the node entry.
1558 */
dea3101e 1559static uint32_t
2e0fef85
JS		 1560lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1561 struct lpfc_nodelist *ndlp,
1562 void *arg,
1563 uint32_t evt)
dea3101e 1564{
2e0fef85
JS		 1565 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1566 struct lpfc_hba *phba = vport->phba;
1567
92d7f7b0
JS		 1568 /* Don't do anything that will mess up processing of the
1569 * previous RSCN.
1570 */
1571 if (vport->fc_flag & FC_RSCN_DEFERRED)
1572 return ndlp->nlp_state;
1573
dea3101e 1574 /* software abort outstanding PRLI */
07951076 1575 lpfc_els_abort(phba, ndlp);
dea3101e 1576
5024ab17 1577 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2e0fef85
JS		 1578 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1579 spin_lock_irq(shost->host_lock);
a0f9b48d 1580 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1581 spin_unlock_irq(shost->host_lock);
92d7f7b0 1582 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1583 return ndlp->nlp_state;
dea3101e 1584}
1585
1586static uint32_t
2e0fef85
JS		 1587lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1588 void *arg, uint32_t evt)
dea3101e 1589{
2e0fef85 1590 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1591
2e0fef85 1592 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1593 return ndlp->nlp_state;
dea3101e 1594}
1595
1596static uint32_t
2e0fef85
JS		 1597lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1598 void *arg, uint32_t evt)
dea3101e 1599{
2e0fef85 1600 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1601
2e0fef85
JS		 1602 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1603 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1604 return ndlp->nlp_state;
dea3101e 1605}
1606
1607static uint32_t
2e0fef85
JS		 1608lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1609 void *arg, uint32_t evt)
dea3101e 1610{
2e0fef85 1611 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1612
2e0fef85 1613 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1614 return ndlp->nlp_state;
dea3101e 1615}
1616
1617static uint32_t
2e0fef85
JS		 1618lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1619 void *arg, uint32_t evt)
dea3101e 1620{
2e0fef85 1621 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1622
2e0fef85 1623 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1624 return ndlp->nlp_state;
dea3101e 1625}
1626
1627static uint32_t
2e0fef85
JS		 1628lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1629 void *arg, uint32_t evt)
dea3101e 1630{
2e0fef85 1631 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1632
51ef4c26 1633 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1634 return ndlp->nlp_state;
dea3101e 1635}
1636
1637static uint32_t
2e0fef85
JS		 1638lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
1639 struct lpfc_nodelist *ndlp,
1640 void *arg,
1641 uint32_t evt)
dea3101e 1642{
2e0fef85
JS		 1643 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1644
5024ab17 1645 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
2e0fef85
JS		 1646 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1647 spin_lock_irq(shost->host_lock);
a0f9b48d 1648 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85
JS		 1649 spin_unlock_irq(shost->host_lock);
1650 lpfc_disc_set_adisc(vport, ndlp);
dea3101e 1651
c9f8735b 1652 return ndlp->nlp_state;
dea3101e 1653}
1654
1655static uint32_t
2e0fef85
JS		 1656lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1657 void *arg, uint32_t evt)
dea3101e 1658{
2e0fef85 1659 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1660
2e0fef85 1661 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1662 return ndlp->nlp_state;
dea3101e 1663}
1664
1665static uint32_t
2e0fef85
JS		 1666lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1667 void *arg, uint32_t evt)
dea3101e 1668{
2e0fef85 1669 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1670
2e0fef85 1671 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1672 return ndlp->nlp_state;
dea3101e 1673}
1674
1675static uint32_t
2e0fef85
JS		 1676lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1677 void *arg, uint32_t evt)
dea3101e 1678{
2e0fef85 1679 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1680
2e0fef85 1681 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1682 return ndlp->nlp_state;
dea3101e 1683}
1684
1685static uint32_t
2e0fef85
JS		 1686lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
1687 struct lpfc_nodelist *ndlp,
1688 void *arg, uint32_t evt)
dea3101e 1689{
2e0fef85 1690 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1691
2e0fef85 1692 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1693 return ndlp->nlp_state;
dea3101e 1694}
1695
1696static uint32_t
2e0fef85
JS		 1697lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1698 void *arg, uint32_t evt)
dea3101e 1699{
2e0fef85
JS		 1700 struct lpfc_hba *phba = vport->phba;
1701 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1702
1703 /* flush the target */
51ef4c26
JS		 1704 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
1705 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
dea3101e 1706
1707 /* Treat like rcv logo */
2e0fef85 1708 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
c9f8735b 1709 return ndlp->nlp_state;
dea3101e 1710}
1711
1712static uint32_t
2e0fef85
JS		 1713lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
1714 struct lpfc_nodelist *ndlp,
1715 void *arg,
1716 uint32_t evt)
dea3101e 1717{
2e0fef85
JS		 1718 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1719
5024ab17 1720 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
2e0fef85
JS		 1721 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1722 spin_lock_irq(shost->host_lock);
a0f9b48d 1723 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85
JS		 1724 spin_unlock_irq(shost->host_lock);
1725 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1726 return ndlp->nlp_state;
dea3101e 1727}
1728
1729static uint32_t
2e0fef85
JS		 1730lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1731 void *arg, uint32_t evt)
dea3101e 1732{
2e0fef85
JS		 1733 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1734 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1735
1736 /* Ignore PLOGI if we have an outstanding LOGO */
858c9f6c 1737 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) {
c9f8735b 1738 return ndlp->nlp_state;
dea3101e 1739 }
1740
2e0fef85
JS		 1741 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1742 spin_lock_irq(shost->host_lock);
fdcebe28 1743 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 1744 spin_unlock_irq(shost->host_lock);
c9f8735b 1745 return ndlp->nlp_state;
dea3101e 1746 }
1747
1748 /* send PLOGI immediately, move to PLOGI issue state */
1749 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
488d1469 1750 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1751 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1752 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e 1753 }
488d1469 1754
c9f8735b 1755 return ndlp->nlp_state;
dea3101e 1756}
1757
1758static uint32_t
2e0fef85
JS		 1759lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1760 void *arg, uint32_t evt)
dea3101e 1761{
2e0fef85
JS		 1762 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1763 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1764 struct ls_rjt stat;
dea3101e 1765
1766 memset(&stat, 0, sizeof (struct ls_rjt));
1767 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1768 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
858c9f6c 1769 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
dea3101e 1770
1771 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1772 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2e0fef85 1773 spin_lock_irq(shost->host_lock);
c9f8735b 1774 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 1775 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1776 spin_unlock_irq(shost->host_lock);
1777 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1778 lpfc_issue_els_adisc(vport, ndlp, 0);
dea3101e 1779 } else {
5024ab17 1780 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1781 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1782 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e 1783 }
1784 }
c9f8735b 1785 return ndlp->nlp_state;
dea3101e 1786}
1787
1788static uint32_t
2e0fef85
JS		 1789lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1790 void *arg, uint32_t evt)
dea3101e 1791{
2e0fef85 1792 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1793
2e0fef85 1794 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1795 return ndlp->nlp_state;
dea3101e 1796}
1797
1798static uint32_t
2e0fef85
JS		 1799lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1800 void *arg, uint32_t evt)
dea3101e 1801{
2e0fef85 1802 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1803
2e0fef85 1804 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
dea3101e 1805
33ccf8d1
JS		 1806 /*
1807 * Do not start discovery if discovery is about to start
1808 * or discovery in progress for this node. Starting discovery
1809 * here will affect the counting of discovery threads.
1810 */
2fb9bd8b 1811 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
92d7f7b0 1812 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
dea3101e 1813 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
92d7f7b0 1814 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 1815 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1816 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1817 lpfc_issue_els_adisc(vport, ndlp, 0);
dea3101e 1818 } else {
5024ab17 1819 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1820 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1821 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e 1822 }
1823 }
c9f8735b 1824 return ndlp->nlp_state;
dea3101e 1825}
1826
1827static uint32_t
2e0fef85
JS		 1828lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1829 void *arg, uint32_t evt)
dea3101e 1830{
2e0fef85
JS		 1831 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1832 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1833
2e0fef85 1834 spin_lock_irq(shost->host_lock);
c9f8735b 1835 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 1836 spin_unlock_irq(shost->host_lock);
c9f8735b 1837
51ef4c26 1838 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 1839
2e0fef85 1840 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
c9f8735b 1841 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2e0fef85 1842 spin_lock_irq(shost->host_lock);
c9f8735b
JW		 1843 ndlp->nlp_flag |= NLP_DELAY_TMO;
1844 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 1845 spin_unlock_irq(shost->host_lock);
5024ab17 1846 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b 1847 } else {
2e0fef85 1848 spin_lock_irq(shost->host_lock);
c9f8735b 1849 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 1850 spin_unlock_irq(shost->host_lock);
dea3101e 1851 }
c9f8735b
JW		 1852 return ndlp->nlp_state;
1853}
dea3101e 1854
c9f8735b 1855static uint32_t
2e0fef85
JS		 1856lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1857 void *arg, uint32_t evt)
c9f8735b
JW		 1858{
1859 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 1860 IOCB_t *irsp;
c9f8735b
JW		 1861
1862 cmdiocb = (struct lpfc_iocbq *) arg;
1863 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 1864
1865 irsp = &rspiocb->iocb;
1866 if (irsp->ulpStatus) {
a8adb832 1867 ndlp->nlp_flag |= NLP_DEFER_RM;
a0f9b48d
JS		 1868 return NLP_STE_FREED_NODE;
1869 }
c9f8735b
JW		 1870 return ndlp->nlp_state;
1871}
1872
1873static uint32_t
2e0fef85
JS		 1874lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1875 void *arg, uint32_t evt)
c9f8735b
JW		 1876{
1877 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 1878 IOCB_t *irsp;
c9f8735b
JW		 1879
1880 cmdiocb = (struct lpfc_iocbq *) arg;
1881 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 1882
1883 irsp = &rspiocb->iocb;
1884 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2e0fef85 1885 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1886 return NLP_STE_FREED_NODE;
1887 }
c9f8735b 1888 return ndlp->nlp_state;
dea3101e 1889}
1890
1891static uint32_t
2e0fef85
JS		 1892lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1893 void *arg, uint32_t evt)
dea3101e 1894{
2e0fef85 1895 lpfc_unreg_rpi(vport, ndlp);
dea3101e 1896 /* This routine does nothing, just return the current state */
c9f8735b
JW		 1897 return ndlp->nlp_state;
1898}
1899
1900static uint32_t
2e0fef85
JS		 1901lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1902 void *arg, uint32_t evt)
c9f8735b
JW		 1903{
1904 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 1905 IOCB_t *irsp;
c9f8735b
JW		 1906
1907 cmdiocb = (struct lpfc_iocbq *) arg;
1908 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 1909
1910 irsp = &rspiocb->iocb;
1911 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2e0fef85 1912 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1913 return NLP_STE_FREED_NODE;
1914 }
c9f8735b 1915 return ndlp->nlp_state;
dea3101e 1916}
1917
1918static uint32_t
2e0fef85
JS		 1919lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
1920 struct lpfc_nodelist *ndlp,
1921 void *arg, uint32_t evt)
dea3101e 1922{
2e0fef85
JS		 1923 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1924 MAILBOX_t *mb = &pmb->mb;
dea3101e 1925
c9f8735b
JW		 1926 if (!mb->mbxStatus)
1927 ndlp->nlp_rpi = mb->un.varWords[0];
a0f9b48d
JS		 1928 else {
1929 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
2e0fef85 1930 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1931 return NLP_STE_FREED_NODE;
1932 }
1933 }
c9f8735b 1934 return ndlp->nlp_state;
dea3101e 1935}
1936
1937static uint32_t
2e0fef85
JS		 1938lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1939 void *arg, uint32_t evt)
dea3101e 1940{
2e0fef85
JS		 1941 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1942
a0f9b48d 1943 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2e0fef85 1944 spin_lock_irq(shost->host_lock);
a0f9b48d 1945 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1946 spin_unlock_irq(shost->host_lock);
a0f9b48d
JS		 1947 return ndlp->nlp_state;
1948 }
2e0fef85 1949 lpfc_drop_node(vport, ndlp);
c9f8735b 1950 return NLP_STE_FREED_NODE;
dea3101e 1951}
1952
1953static uint32_t
2e0fef85
JS		 1954lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1955 void *arg, uint32_t evt)
dea3101e 1956{
2e0fef85
JS		 1957 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1958
92d7f7b0
JS		 1959 /* Don't do anything that will mess up processing of the
1960 * previous RSCN.
1961 */
1962 if (vport->fc_flag & FC_RSCN_DEFERRED)
1963 return ndlp->nlp_state;
1964
2e0fef85 1965 spin_lock_irq(shost->host_lock);
a0f9b48d 1966 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1967 spin_unlock_irq(shost->host_lock);
6ad42535 1968 if (ndlp->nlp_flag & NLP_DELAY_TMO) {
2e0fef85 1969 lpfc_cancel_retry_delay_tmo(vport, ndlp);
6ad42535 1970 }
c9f8735b 1971 return ndlp->nlp_state;
dea3101e 1972}
1973
1974
1975/* This next section defines the NPort Discovery State Machine */
1976
1977/* There are 4 different double linked lists nodelist entries can reside on.
1978 * The plogi list and adisc list are used when Link Up discovery or RSCN
1979 * processing is needed. Each list holds the nodes that we will send PLOGI
1980 * or ADISC on. These lists will keep track of what nodes will be effected
1981 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1982 * The unmapped_list will contain all nodes that we have successfully logged
1983 * into at the Fibre Channel level. The mapped_list will contain all nodes
1984 * that are mapped FCP targets.
1985 */
1986/*
1987 * The bind list is a list of undiscovered (potentially non-existent) nodes
1988 * that we have saved binding information on. This information is used when
1989 * nodes transition from the unmapped to the mapped list.
1990 */
1991/* For UNUSED_NODE state, the node has just been allocated .
1992 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1993 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1994 * and put on the unmapped list. For ADISC processing, the node is taken off
1995 * the ADISC list and placed on either the mapped or unmapped list (depending
1996 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1997 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1998 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1999 * node, the node is taken off the unmapped list. The binding list is checked
2000 * for a valid binding, or a binding is automatically assigned. If binding
2001 * assignment is unsuccessful, the node is left on the unmapped list. If
2002 * binding assignment is successful, the associated binding list entry (if
2003 * any) is removed, and the node is placed on the mapped list.
2004 */
2005/*
2006 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
c01f3208 2007 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
dea3101e 2008 * expire, all effected nodes will receive a DEVICE_RM event.
2009 */
2010/*
2011 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
2012 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
2013 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
2014 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
2015 * we will first process the ADISC list. 32 entries are processed initially and
2016 * ADISC is initited for each one. Completions / Events for each node are
2017 * funnelled thru the state machine. As each node finishes ADISC processing, it
2018 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
2019 * waiting, and the ADISC list count is identically 0, then we are done. For
2020 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
2021 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
2022 * list. 32 entries are processed initially and PLOGI is initited for each one.
2023 * Completions / Events for each node are funnelled thru the state machine. As
2024 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
2025 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
2026 * indentically 0, then we are done. We have now completed discovery / RSCN
2027 * handling. Upon completion, ALL nodes should be on either the mapped or
2028 * unmapped lists.
2029 */
2030
2031static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
2e0fef85 2032 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
dea3101e 2033 /* Action routine Event Current State */
2034 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2035 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2036 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2037 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2038 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2039 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2040 lpfc_disc_illegal, /* CMPL_PLOGI */
2041 lpfc_disc_illegal, /* CMPL_PRLI */
2042 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2043 lpfc_disc_illegal, /* CMPL_ADISC */
2044 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2045 lpfc_device_rm_unused_node, /* DEVICE_RM */
2046 lpfc_disc_illegal, /* DEVICE_RECOVERY */
2047
2048 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
92d7f7b0 2049 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
c9f8735b 2050 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
dea3101e 2051 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2052 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2053 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2054 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2055 lpfc_disc_illegal, /* CMPL_PRLI */
0ff10d46 2056 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
dea3101e 2057 lpfc_disc_illegal, /* CMPL_ADISC */
0ff10d46 2058 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
dea3101e 2059 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2060 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2061
2062 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
2063 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
2064 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
2065 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
2066 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
2067 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
2068 lpfc_disc_illegal, /* CMPL_PLOGI */
2069 lpfc_disc_illegal, /* CMPL_PRLI */
2070 lpfc_disc_illegal, /* CMPL_LOGO */
2071 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
2072 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2073 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
2074 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
2075
2076 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
2077 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
2078 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
2079 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
2080 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
2081 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
87af33fe 2082 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
dea3101e 2083 lpfc_disc_illegal, /* CMPL_PRLI */
2084 lpfc_disc_illegal, /* CMPL_LOGO */
2085 lpfc_disc_illegal, /* CMPL_ADISC */
2086 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
2087 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
2088 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
2089
2090 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
2091 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
2092 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
2093 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
2094 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
2095 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
87af33fe 2096 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
dea3101e 2097 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
2098 lpfc_disc_illegal, /* CMPL_LOGO */
2099 lpfc_disc_illegal, /* CMPL_ADISC */
2100 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2101 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2102 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2103
2104 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2105 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2106 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2107 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2108 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2109 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
2110 lpfc_disc_illegal, /* CMPL_PLOGI */
2111 lpfc_disc_illegal, /* CMPL_PRLI */
2112 lpfc_disc_illegal, /* CMPL_LOGO */
2113 lpfc_disc_illegal, /* CMPL_ADISC */
2114 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2115 lpfc_disc_illegal, /* DEVICE_RM */
2116 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2117
2118 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2119 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2120 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2121 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2122 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2123 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2124 lpfc_disc_illegal, /* CMPL_PLOGI */
2125 lpfc_disc_illegal, /* CMPL_PRLI */
2126 lpfc_disc_illegal, /* CMPL_LOGO */
2127 lpfc_disc_illegal, /* CMPL_ADISC */
2128 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2129 lpfc_disc_illegal, /* DEVICE_RM */
2130 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2131
2132 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2133 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2134 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2135 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2136 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2137 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
c9f8735b
JW		 2138 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2139 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
dea3101e 2140 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
c9f8735b 2141 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
dea3101e 2142 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2143 lpfc_device_rm_npr_node, /* DEVICE_RM */
2144 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2145};
2146
2147int
2e0fef85
JS		 2148lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2149 void *arg, uint32_t evt)
dea3101e 2150{
2151 uint32_t cur_state, rc;
2e0fef85 2152 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
dea3101e 2153 uint32_t);
e47c9093
JS		 2154 uint32_t got_ndlp = 0;
2155
2156 if (lpfc_nlp_get(ndlp))
2157 got_ndlp = 1;
dea3101e 2158
dea3101e 2159 cur_state = ndlp->nlp_state;
2160
2161 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
e8b62011
JS		 2162 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2163 "0211 DSM in event x%x on NPort x%x in "
2164 "state %d Data: x%x\n",
2165 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
dea3101e 2166
858c9f6c
JS		 2167 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2168 "DSM in: evt:%d ste:%d did:x%x",
2169 evt, cur_state, ndlp->nlp_DID);
2170
dea3101e 2171 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2e0fef85 2172 rc = (func) (vport, ndlp, arg, evt);
dea3101e 2173
2174 /* DSM out state <rc> on NPort <nlp_DID> */
e47c9093
JS		 2175 if (got_ndlp) {
2176 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
e8b62011
JS		 2177 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2178 rc, ndlp->nlp_DID, ndlp->nlp_flag);
dea3101e 2179
e47c9093
JS		 2180 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2181 "DSM out: ste:%d did:x%x flg:x%x",
2182 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2183 /* Decrement the ndlp reference count held for this function */
2184 lpfc_nlp_put(ndlp);
2185 } else {
2186 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2187 "0212 DSM out state %d on NPort free\n", rc);
858c9f6c 2188
e47c9093
JS		 2189 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2190 "DSM out: ste:%d did:x%x flg:x%x",
2191 rc, 0, 0);
2192 }
dea3101e 2193
c9f8735b 2194 return rc;
dea3101e 2195}
Linux kernel - Deliverables
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