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[SCSI] lpfc 8.2.8 : Add kernel-doc function headers
[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 237 }
0d2b6b83 238 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
c9f8735b 239 return 0;
dea3101e 240}
241
242static int
2e0fef85 243lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
92d7f7b0 244 struct lpfc_iocbq *cmdiocb)
dea3101e 245{
2e0fef85
JS		 246 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
247 struct lpfc_hba *phba = vport->phba;
dea3101e 248 struct lpfc_dmabuf *pcmd;
249 uint32_t *lp;
250 IOCB_t *icmd;
251 struct serv_parm *sp;
252 LPFC_MBOXQ_t *mbox;
253 struct ls_rjt stat;
254 int rc;
255
256 memset(&stat, 0, sizeof (struct ls_rjt));
2e0fef85 257 if (vport->port_state <= LPFC_FLOGI) {
dea3101e 258 /* Before responding to PLOGI, check for pt2pt mode.
259 * If we are pt2pt, with an outstanding FLOGI, abort
260 * the FLOGI and resend it first.
261 */
2e0fef85 262 if (vport->fc_flag & FC_PT2PT) {
92d7f7b0 263 lpfc_els_abort_flogi(phba);
2e0fef85 264 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
dea3101e 265 /* If the other side is supposed to initiate
266 * the PLOGI anyway, just ACC it now and
267 * move on with discovery.
268 */
269 phba->fc_edtov = FF_DEF_EDTOV;
270 phba->fc_ratov = FF_DEF_RATOV;
271 /* Start discovery - this should just do
272 CLEAR_LA */
2e0fef85 273 lpfc_disc_start(vport);
ed957684 274 } else
2e0fef85 275 lpfc_initial_flogi(vport);
2fe165b6 276 } else {
dea3101e 277 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
278 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
2e0fef85 279 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
858c9f6c 280 ndlp, NULL);
dea3101e 281 return 0;
282 }
283 }
284 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
285 lp = (uint32_t *) pcmd->virt;
286 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
a8adb832
JS		 287 if (wwn_to_u64(sp->portName.u.wwn) == 0) {
288 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
289 "0140 PLOGI Reject: invalid nname\n");
290 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
291 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
292 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
293 NULL);
294 return 0;
295 }
296 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
297 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
298 "0141 PLOGI Reject: invalid pname\n");
299 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
300 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
301 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
302 NULL);
303 return 0;
304 }
2e0fef85 305 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3) == 0)) {
dea3101e 306 /* Reject this request because invalid parameters */
307 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
308 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
858c9f6c
JS		 309 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
310 NULL);
c9f8735b 311 return 0;
dea3101e 312 }
313 icmd = &cmdiocb->iocb;
314
315 /* PLOGI chkparm OK */
e8b62011
JS		 316 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
317 "0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
318 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
319 ndlp->nlp_rpi);
dea3101e 320
3de2a653 321 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
dea3101e 322 ndlp->nlp_fcp_info |= CLASS2;
ed957684 323 else
dea3101e 324 ndlp->nlp_fcp_info |= CLASS3;
2e0fef85 325
dea3101e 326 ndlp->nlp_class_sup = 0;
327 if (sp->cls1.classValid)
328 ndlp->nlp_class_sup |= FC_COS_CLASS1;
329 if (sp->cls2.classValid)
330 ndlp->nlp_class_sup |= FC_COS_CLASS2;
331 if (sp->cls3.classValid)
332 ndlp->nlp_class_sup |= FC_COS_CLASS3;
333 if (sp->cls4.classValid)
334 ndlp->nlp_class_sup |= FC_COS_CLASS4;
335 ndlp->nlp_maxframe =
336 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
337
338 /* no need to reg_login if we are already in one of these states */
2fe165b6 339 switch (ndlp->nlp_state) {
dea3101e 340 case NLP_STE_NPR_NODE:
341 if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
342 break;
343 case NLP_STE_REG_LOGIN_ISSUE:
344 case NLP_STE_PRLI_ISSUE:
345 case NLP_STE_UNMAPPED_NODE:
346 case NLP_STE_MAPPED_NODE:
51ef4c26 347 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
c9f8735b 348 return 1;
dea3101e 349 }
350
92d7f7b0
JS		 351 if ((vport->fc_flag & FC_PT2PT) &&
352 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
dea3101e 353 /* rcv'ed PLOGI decides what our NPortId will be */
2e0fef85 354 vport->fc_myDID = icmd->un.rcvels.parmRo;
dea3101e 355 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
356 if (mbox == NULL)
357 goto out;
358 lpfc_config_link(phba, mbox);
359 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
ed957684 360 mbox->vport = vport;
0b727fea 361 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
dea3101e 362 if (rc == MBX_NOT_FINISHED) {
92d7f7b0 363 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 364 goto out;
365 }
366
2e0fef85 367 lpfc_can_disctmo(vport);
dea3101e 368 }
369 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2e0fef85 370 if (!mbox)
dea3101e 371 goto out;
372
92d7f7b0
JS		 373 rc = lpfc_reg_login(phba, vport->vpi, icmd->un.rcvels.remoteID,
374 (uint8_t *) sp, mbox, 0);
2e0fef85
JS		 375 if (rc) {
376 mempool_free(mbox, phba->mbox_mem_pool);
dea3101e 377 goto out;
378 }
379
380 /* ACC PLOGI rsp command needs to execute first,
381 * queue this mbox command to be processed later.
382 */
383 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
329f9bc7
JS		 384 /*
385 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox
386 * command issued in lpfc_cmpl_els_acc().
387 */
2e0fef85
JS		 388 mbox->vport = vport;
389 spin_lock_irq(shost->host_lock);
5024ab17 390 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
2e0fef85 391 spin_unlock_irq(shost->host_lock);
dea3101e 392
33ccf8d1
JS		 393 /*
394 * If there is an outstanding PLOGI issued, abort it before
395 * sending ACC rsp for received PLOGI. If pending plogi
396 * is not canceled here, the plogi will be rejected by
397 * remote port and will be retried. On a configuration with
398 * single discovery thread, this will cause a huge delay in
399 * discovery. Also this will cause multiple state machines
400 * running in parallel for this node.
401 */
402 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
403 /* software abort outstanding PLOGI */
07951076 404 lpfc_els_abort(phba, ndlp);
33ccf8d1
JS		 405 }
406
858c9f6c 407 if ((vport->port_type == LPFC_NPIV_PORT &&
3de2a653 408 vport->cfg_restrict_login)) {
858c9f6c
JS		 409
410 /* In order to preserve RPIs, we want to cleanup
411 * the default RPI the firmware created to rcv
412 * this ELS request. The only way to do this is
413 * to register, then unregister the RPI.
414 */
415 spin_lock_irq(shost->host_lock);
416 ndlp->nlp_flag |= NLP_RM_DFLT_RPI;
417 spin_unlock_irq(shost->host_lock);
418 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
419 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
420 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
421 ndlp, mbox);
422 return 1;
423 }
51ef4c26 424 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox);
c9f8735b 425 return 1;
dea3101e 426out:
427 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
428 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
858c9f6c 429 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
c9f8735b 430 return 0;
dea3101e 431}
432
433static int
2e0fef85 434lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e 435 struct lpfc_iocbq *cmdiocb)
436{
2e0fef85 437 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 438 struct lpfc_dmabuf *pcmd;
2e0fef85
JS		 439 struct serv_parm *sp;
440 struct lpfc_name *pnn, *ppn;
dea3101e 441 struct ls_rjt stat;
442 ADISC *ap;
443 IOCB_t *icmd;
444 uint32_t *lp;
445 uint32_t cmd;
446
447 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
448 lp = (uint32_t *) pcmd->virt;
449
450 cmd = *lp++;
451 if (cmd == ELS_CMD_ADISC) {
452 ap = (ADISC *) lp;
453 pnn = (struct lpfc_name *) & ap->nodeName;
454 ppn = (struct lpfc_name *) & ap->portName;
455 } else {
456 sp = (struct serv_parm *) lp;
457 pnn = (struct lpfc_name *) & sp->nodeName;
458 ppn = (struct lpfc_name *) & sp->portName;
459 }
460
461 icmd = &cmdiocb->iocb;
2e0fef85 462 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
dea3101e 463 if (cmd == ELS_CMD_ADISC) {
2e0fef85 464 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
2fe165b6 465 } else {
2e0fef85 466 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp,
51ef4c26 467 NULL);
dea3101e 468 }
c9f8735b 469 return 1;
dea3101e 470 }
471 /* Reject this request because invalid parameters */
472 stat.un.b.lsRjtRsvd0 = 0;
473 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
474 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
475 stat.un.b.vendorUnique = 0;
858c9f6c 476 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
dea3101e 477
dea3101e 478 /* 1 sec timeout */
479 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
480
2e0fef85 481 spin_lock_irq(shost->host_lock);
dea3101e 482 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 483 spin_unlock_irq(shost->host_lock);
5024ab17
JW		 484 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
485 ndlp->nlp_prev_state = ndlp->nlp_state;
2e0fef85 486 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
c9f8735b 487 return 0;
dea3101e 488}
489
490static int
2e0fef85
JS		 491lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
492 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
dea3101e 493{
2e0fef85
JS		 494 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
495
496 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
dea3101e 497 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
498 * PLOGIs during LOGO storms from a device.
499 */
2e0fef85 500 spin_lock_irq(shost->host_lock);
dea3101e 501 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 502 spin_unlock_irq(shost->host_lock);
82d9a2a2 503 if (els_cmd == ELS_CMD_PRLO)
51ef4c26 504 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
82d9a2a2 505 else
51ef4c26 506 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 507
0d2b6b83
JS		 508 if ((!(ndlp->nlp_type & NLP_FABRIC) &&
509 ((ndlp->nlp_type & NLP_FCP_TARGET) ||
510 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
92d7f7b0 511 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
dea3101e 512 /* Only try to re-login if this is NOT a Fabric Node */
dea3101e 513 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2e0fef85 514 spin_lock_irq(shost->host_lock);
dea3101e 515 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 516 spin_unlock_irq(shost->host_lock);
dea3101e 517
5024ab17 518 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b 519 }
87af33fe
JS		 520 ndlp->nlp_prev_state = ndlp->nlp_state;
521 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 522
2e0fef85 523 spin_lock_irq(shost->host_lock);
dea3101e 524 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 525 spin_unlock_irq(shost->host_lock);
dea3101e 526 /* The driver has to wait until the ACC completes before it continues
527 * processing the LOGO. The action will resume in
528 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
529 * unreg_login, the driver waits so the ACC does not get aborted.
530 */
c9f8735b 531 return 0;
dea3101e 532}
533
534static void
2e0fef85
JS		 535lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
536 struct lpfc_iocbq *cmdiocb)
dea3101e 537{
538 struct lpfc_dmabuf *pcmd;
539 uint32_t *lp;
540 PRLI *npr;
541 struct fc_rport *rport = ndlp->rport;
542 u32 roles;
543
544 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
545 lp = (uint32_t *) pcmd->virt;
546 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
547
548 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
549 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
92d7f7b0 550 if (npr->prliType == PRLI_FCP_TYPE) {
dea3101e 551 if (npr->initiatorFunc)
552 ndlp->nlp_type |= NLP_FCP_INITIATOR;
553 if (npr->targetFunc)
554 ndlp->nlp_type |= NLP_FCP_TARGET;
555 if (npr->Retry)
556 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
557 }
558 if (rport) {
559 /* We need to update the rport role values */
560 roles = FC_RPORT_ROLE_UNKNOWN;
561 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
562 roles |= FC_RPORT_ROLE_FCP_INITIATOR;
563 if (ndlp->nlp_type & NLP_FCP_TARGET)
564 roles |= FC_RPORT_ROLE_FCP_TARGET;
858c9f6c
JS		 565
566 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
567 "rport rolechg: role:x%x did:x%x flg:x%x",
568 roles, ndlp->nlp_DID, ndlp->nlp_flag);
569
dea3101e 570 fc_remote_port_rolechg(rport, roles);
571 }
572}
573
574static uint32_t
2e0fef85 575lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
dea3101e 576{
2e0fef85 577 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 578
51ef4c26
JS		 579 if (!ndlp->nlp_rpi) {
580 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
581 return 0;
582 }
583
1b32f6aa
JS		 584 if (!(vport->fc_flag & FC_PT2PT)) {
585 /* Check config parameter use-adisc or FCP-2 */
586 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) ||
587 ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) {
588 spin_lock_irq(shost->host_lock);
589 ndlp->nlp_flag |= NLP_NPR_ADISC;
590 spin_unlock_irq(shost->host_lock);
591 return 1;
592 }
92d7f7b0
JS		 593 }
594 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
595 lpfc_unreg_rpi(vport, ndlp);
596 return 0;
dea3101e 597}
598
599static uint32_t
2e0fef85
JS		 600lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
601 void *arg, uint32_t evt)
dea3101e 602{
e8b62011 603 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
e47c9093 604 "0271 Illegal State Transition: node x%x "
e8b62011
JS		 605 "event x%x, state x%x Data: x%x x%x\n",
606 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
607 ndlp->nlp_flag);
c9f8735b 608 return ndlp->nlp_state;
dea3101e 609}
610
87af33fe
JS		 611static uint32_t
612lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
613 void *arg, uint32_t evt)
614{
615 /* This transition is only legal if we previously
616 * rcv'ed a PLOGI. Since we don't want 2 discovery threads
617 * working on the same NPortID, do nothing for this thread
618 * to stop it.
619 */
620 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
621 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
e47c9093 622 "0272 Illegal State Transition: node x%x "
87af33fe
JS		 623 "event x%x, state x%x Data: x%x x%x\n",
624 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
625 ndlp->nlp_flag);
626 }
627 return ndlp->nlp_state;
628}
629
dea3101e 630/* Start of Discovery State Machine routines */
631
632static uint32_t
2e0fef85
JS		 633lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
634 void *arg, uint32_t evt)
dea3101e 635{
636 struct lpfc_iocbq *cmdiocb;
637
638 cmdiocb = (struct lpfc_iocbq *) arg;
639
2e0fef85 640 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
c9f8735b 641 return ndlp->nlp_state;
dea3101e 642 }
c9f8735b 643 return NLP_STE_FREED_NODE;
dea3101e 644}
645
646static uint32_t
2e0fef85
JS		 647lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
648 void *arg, uint32_t evt)
dea3101e 649{
2e0fef85 650 lpfc_issue_els_logo(vport, ndlp, 0);
c9f8735b 651 return ndlp->nlp_state;
dea3101e 652}
653
654static uint32_t
2e0fef85
JS		 655lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
656 void *arg, uint32_t evt)
dea3101e 657{
2e0fef85
JS		 658 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
659 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 660
2e0fef85 661 spin_lock_irq(shost->host_lock);
dea3101e 662 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 663 spin_unlock_irq(shost->host_lock);
51ef4c26 664 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 665
c9f8735b 666 return ndlp->nlp_state;
dea3101e 667}
668
669static uint32_t
2e0fef85
JS		 670lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
671 void *arg, uint32_t evt)
dea3101e 672{
c9f8735b 673 return NLP_STE_FREED_NODE;
dea3101e 674}
675
676static uint32_t
2e0fef85
JS		 677lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
678 void *arg, uint32_t evt)
dea3101e 679{
c9f8735b 680 return NLP_STE_FREED_NODE;
dea3101e 681}
682
683static uint32_t
2e0fef85 684lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
dea3101e 685 void *arg, uint32_t evt)
686{
0d2b6b83 687 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 688 struct lpfc_hba *phba = vport->phba;
dea3101e 689 struct lpfc_iocbq *cmdiocb = arg;
2e0fef85
JS		 690 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
691 uint32_t *lp = (uint32_t *) pcmd->virt;
692 struct serv_parm *sp = (struct serv_parm *) (lp + 1);
dea3101e 693 struct ls_rjt stat;
694 int port_cmp;
695
dea3101e 696 memset(&stat, 0, sizeof (struct ls_rjt));
697
698 /* For a PLOGI, we only accept if our portname is less
699 * than the remote portname.
700 */
701 phba->fc_stat.elsLogiCol++;
2e0fef85 702 port_cmp = memcmp(&vport->fc_portname, &sp->portName,
92d7f7b0 703 sizeof(struct lpfc_name));
dea3101e 704
705 if (port_cmp >= 0) {
706 /* Reject this request because the remote node will accept
707 ours */
708 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
709 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
858c9f6c
JS		 710 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
711 NULL);
2fe165b6 712 } else {
0d2b6b83
JS		 713 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) &&
714 (ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
715 (vport->num_disc_nodes)) {
716 spin_lock_irq(shost->host_lock);
717 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
718 spin_unlock_irq(shost->host_lock);
719 /* Check if there are more PLOGIs to be sent */
720 lpfc_more_plogi(vport);
721 if (vport->num_disc_nodes == 0) {
722 spin_lock_irq(shost->host_lock);
723 vport->fc_flag &= ~FC_NDISC_ACTIVE;
724 spin_unlock_irq(shost->host_lock);
725 lpfc_can_disctmo(vport);
726 lpfc_end_rscn(vport);
727 }
728 }
2e0fef85 729 } /* If our portname was less */
dea3101e 730
c9f8735b
JW		 731 return ndlp->nlp_state;
732}
733
92d7f7b0
JS		 734static uint32_t
735lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
736 void *arg, uint32_t evt)
737{
738 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
739 struct ls_rjt stat;
740
741 memset(&stat, 0, sizeof (struct ls_rjt));
742 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
743 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
858c9f6c 744 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
92d7f7b0
JS		 745 return ndlp->nlp_state;
746}
747
c9f8735b 748static uint32_t
2e0fef85
JS		 749lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
750 void *arg, uint32_t evt)
c9f8735b 751{
2e0fef85 752 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
c9f8735b 753
92d7f7b0 754 /* software abort outstanding PLOGI */
2e0fef85 755 lpfc_els_abort(vport->phba, ndlp);
c9f8735b 756
2e0fef85 757 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 758 return ndlp->nlp_state;
dea3101e 759}
760
761static uint32_t
2e0fef85
JS		 762lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
763 void *arg, uint32_t evt)
dea3101e 764{
2e0fef85
JS		 765 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
766 struct lpfc_hba *phba = vport->phba;
767 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 768
769 /* software abort outstanding PLOGI */
07951076 770 lpfc_els_abort(phba, ndlp);
dea3101e 771
772 if (evt == NLP_EVT_RCV_LOGO) {
51ef4c26 773 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
2fe165b6 774 } else {
2e0fef85 775 lpfc_issue_els_logo(vport, ndlp, 0);
dea3101e 776 }
777
2e0fef85 778 /* Put ndlp in npr state set plogi timer for 1 sec */
5024ab17 779 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2e0fef85 780 spin_lock_irq(shost->host_lock);
5024ab17 781 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 782 spin_unlock_irq(shost->host_lock);
5024ab17
JW		 783 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
784 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
2e0fef85 785 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
dea3101e 786
c9f8735b 787 return ndlp->nlp_state;
dea3101e 788}
789
790static uint32_t
2e0fef85
JS		 791lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
792 struct lpfc_nodelist *ndlp,
793 void *arg,
dea3101e 794 uint32_t evt)
795{
2e0fef85 796 struct lpfc_hba *phba = vport->phba;
0ff10d46 797 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 798 struct lpfc_iocbq *cmdiocb, *rspiocb;
14691150 799 struct lpfc_dmabuf *pcmd, *prsp, *mp;
dea3101e 800 uint32_t *lp;
801 IOCB_t *irsp;
802 struct serv_parm *sp;
803 LPFC_MBOXQ_t *mbox;
804
805 cmdiocb = (struct lpfc_iocbq *) arg;
806 rspiocb = cmdiocb->context_un.rsp_iocb;
807
808 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
5024ab17 809 /* Recovery from PLOGI collision logic */
c9f8735b 810 return ndlp->nlp_state;
dea3101e 811 }
812
813 irsp = &rspiocb->iocb;
814
815 if (irsp->ulpStatus)
816 goto out;
817
818 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
819
2e0fef85 820 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
dea3101e 821
2e0fef85 822 lp = (uint32_t *) prsp->virt;
dea3101e 823 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
58da1ffb
JS		 824
825 /* Some switches have FDMI servers returning 0 for WWN */
826 if ((ndlp->nlp_DID != FDMI_DID) &&
827 (wwn_to_u64(sp->portName.u.wwn) == 0 ||
828 wwn_to_u64(sp->nodeName.u.wwn) == 0)) {
a8adb832
JS		 829 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
830 "0142 PLOGI RSP: Invalid WWN.\n");
831 goto out;
832 }
2e0fef85 833 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3))
dea3101e 834 goto out;
dea3101e 835 /* PLOGI chkparm OK */
e8b62011
JS		 836 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
837 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
838 ndlp->nlp_DID, ndlp->nlp_state,
839 ndlp->nlp_flag, ndlp->nlp_rpi);
3de2a653 840 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
dea3101e 841 ndlp->nlp_fcp_info |= CLASS2;
2e0fef85 842 else
dea3101e 843 ndlp->nlp_fcp_info |= CLASS3;
2e0fef85 844
dea3101e 845 ndlp->nlp_class_sup = 0;
846 if (sp->cls1.classValid)
847 ndlp->nlp_class_sup |= FC_COS_CLASS1;
848 if (sp->cls2.classValid)
849 ndlp->nlp_class_sup |= FC_COS_CLASS2;
850 if (sp->cls3.classValid)
851 ndlp->nlp_class_sup |= FC_COS_CLASS3;
852 if (sp->cls4.classValid)
853 ndlp->nlp_class_sup |= FC_COS_CLASS4;
854 ndlp->nlp_maxframe =
2e0fef85 855 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
dea3101e 856
2e0fef85 857 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
92d7f7b0 858 if (!mbox) {
e8b62011
JS		 859 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
860 "0133 PLOGI: no memory for reg_login "
92d7f7b0 861 "Data: x%x x%x x%x x%x\n",
92d7f7b0
JS		 862 ndlp->nlp_DID, ndlp->nlp_state,
863 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e 864 goto out;
92d7f7b0 865 }
dea3101e 866
2e0fef85
JS		 867 lpfc_unreg_rpi(vport, ndlp);
868
92d7f7b0
JS		 869 if (lpfc_reg_login(phba, vport->vpi, irsp->un.elsreq64.remoteID,
870 (uint8_t *) sp, mbox, 0) == 0) {
2fe165b6 871 switch (ndlp->nlp_DID) {
dea3101e 872 case NameServer_DID:
de0c5b32 873 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
dea3101e 874 break;
875 case FDMI_DID:
de0c5b32 876 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
dea3101e 877 break;
878 default:
de0c5b32 879 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
dea3101e 880 }
329f9bc7 881 mbox->context2 = lpfc_nlp_get(ndlp);
2e0fef85 882 mbox->vport = vport;
0b727fea 883 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
dea3101e 884 != MBX_NOT_FINISHED) {
2e0fef85
JS		 885 lpfc_nlp_set_state(vport, ndlp,
886 NLP_STE_REG_LOGIN_ISSUE);
c9f8735b 887 return ndlp->nlp_state;
dea3101e 888 }
fa4066b6
JS		 889 /* decrement node reference count to the failed mbox
890 * command
891 */
329f9bc7 892 lpfc_nlp_put(ndlp);
92d7f7b0 893 mp = (struct lpfc_dmabuf *) mbox->context1;
14691150
JS		 894 lpfc_mbuf_free(phba, mp->virt, mp->phys);
895 kfree(mp);
dea3101e 896 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 897
e8b62011
JS		 898 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
899 "0134 PLOGI: cannot issue reg_login "
900 "Data: x%x x%x x%x x%x\n",
901 ndlp->nlp_DID, ndlp->nlp_state,
902 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e 903 } else {
904 mempool_free(mbox, phba->mbox_mem_pool);
92d7f7b0 905
e8b62011
JS		 906 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
907 "0135 PLOGI: cannot format reg_login "
908 "Data: x%x x%x x%x x%x\n",
909 ndlp->nlp_DID, ndlp->nlp_state,
910 ndlp->nlp_flag, ndlp->nlp_rpi);
dea3101e 911 }
912
913
92d7f7b0
JS		 914out:
915 if (ndlp->nlp_DID == NameServer_DID) {
916 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
e8b62011
JS		 917 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
918 "0261 Cannot Register NameServer login\n");
92d7f7b0
JS		 919 }
920
0ff10d46 921 spin_lock_irq(shost->host_lock);
a8adb832 922 ndlp->nlp_flag |= NLP_DEFER_RM;
0ff10d46 923 spin_unlock_irq(shost->host_lock);
c9f8735b 924 return NLP_STE_FREED_NODE;
dea3101e 925}
926
0ff10d46
JS		 927static uint32_t
928lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
929 void *arg, uint32_t evt)
930{
931 return ndlp->nlp_state;
932}
933
934static uint32_t
935lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
936 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
937{
938 return ndlp->nlp_state;
939}
940
dea3101e 941static uint32_t
2e0fef85
JS		 942lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
943 void *arg, uint32_t evt)
dea3101e 944{
2e0fef85
JS		 945 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
946
947 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
948 spin_lock_irq(shost->host_lock);
a0f9b48d 949 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 950 spin_unlock_irq(shost->host_lock);
a0f9b48d 951 return ndlp->nlp_state;
2e0fef85 952 } else {
a0f9b48d 953 /* software abort outstanding PLOGI */
2e0fef85 954 lpfc_els_abort(vport->phba, ndlp);
dea3101e 955
2e0fef85 956 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 957 return NLP_STE_FREED_NODE;
958 }
dea3101e 959}
960
961static uint32_t
2e0fef85
JS		 962lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
963 struct lpfc_nodelist *ndlp,
964 void *arg,
965 uint32_t evt)
dea3101e 966{
2e0fef85
JS		 967 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
968 struct lpfc_hba *phba = vport->phba;
969
92d7f7b0
JS		 970 /* Don't do anything that will mess up processing of the
971 * previous RSCN.
972 */
973 if (vport->fc_flag & FC_RSCN_DEFERRED)
974 return ndlp->nlp_state;
975
dea3101e 976 /* software abort outstanding PLOGI */
07951076 977 lpfc_els_abort(phba, ndlp);
dea3101e 978
5024ab17 979 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
2e0fef85 980 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
92d7f7b0 981 spin_lock_irq(shost->host_lock);
a0f9b48d 982 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 983 spin_unlock_irq(shost->host_lock);
dea3101e 984
c9f8735b 985 return ndlp->nlp_state;
dea3101e 986}
987
988static uint32_t
2e0fef85
JS		 989lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
990 void *arg, uint32_t evt)
dea3101e 991{
0d2b6b83 992 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85 993 struct lpfc_hba *phba = vport->phba;
dea3101e 994 struct lpfc_iocbq *cmdiocb;
995
996 /* software abort outstanding ADISC */
07951076 997 lpfc_els_abort(phba, ndlp);
dea3101e 998
999 cmdiocb = (struct lpfc_iocbq *) arg;
1000
0d2b6b83
JS		 1001 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
1002 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1003 spin_lock_irq(shost->host_lock);
1004 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1005 spin_unlock_irq(shost->host_lock);
2e0fef85 1006
0d2b6b83
JS		 1007 if (vport->num_disc_nodes) {
1008 lpfc_more_adisc(vport);
1009 if ((vport->num_disc_nodes == 0) &&
1010 (vport->fc_npr_cnt))
1011 lpfc_els_disc_plogi(vport);
1012 if (vport->num_disc_nodes == 0) {
1013 spin_lock_irq(shost->host_lock);
1014 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1015 spin_unlock_irq(shost->host_lock);
1016 lpfc_can_disctmo(vport);
1017 lpfc_end_rscn(vport);
1018 }
1019 }
1020 }
1021 return ndlp->nlp_state;
1022 }
5024ab17 1023 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1024 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1025 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
dea3101e 1026
c9f8735b 1027 return ndlp->nlp_state;
dea3101e 1028}
1029
1030static uint32_t
2e0fef85
JS		 1031lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1032 void *arg, uint32_t evt)
dea3101e 1033{
2e0fef85 1034 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1035
2e0fef85 1036 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1037 return ndlp->nlp_state;
dea3101e 1038}
1039
1040static uint32_t
2e0fef85
JS		 1041lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1042 void *arg, uint32_t evt)
dea3101e 1043{
2e0fef85 1044 struct lpfc_hba *phba = vport->phba;
dea3101e 1045 struct lpfc_iocbq *cmdiocb;
1046
1047 cmdiocb = (struct lpfc_iocbq *) arg;
1048
1049 /* software abort outstanding ADISC */
07951076 1050 lpfc_els_abort(phba, ndlp);
dea3101e 1051
2e0fef85 1052 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1053 return ndlp->nlp_state;
dea3101e 1054}
1055
1056static uint32_t
2e0fef85
JS		 1057lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
1058 struct lpfc_nodelist *ndlp,
1059 void *arg, uint32_t evt)
dea3101e 1060{
1061 struct lpfc_iocbq *cmdiocb;
1062
1063 cmdiocb = (struct lpfc_iocbq *) arg;
1064
2e0fef85 1065 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1066 return ndlp->nlp_state;
dea3101e 1067}
1068
1069static uint32_t
2e0fef85
JS		 1070lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1071 void *arg, uint32_t evt)
dea3101e 1072{
1073 struct lpfc_iocbq *cmdiocb;
1074
1075 cmdiocb = (struct lpfc_iocbq *) arg;
1076
1077 /* Treat like rcv logo */
2e0fef85 1078 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
c9f8735b 1079 return ndlp->nlp_state;
dea3101e 1080}
1081
1082static uint32_t
2e0fef85
JS		 1083lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
1084 struct lpfc_nodelist *ndlp,
1085 void *arg, uint32_t evt)
dea3101e 1086{
2e0fef85
JS		 1087 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1088 struct lpfc_hba *phba = vport->phba;
dea3101e 1089 struct lpfc_iocbq *cmdiocb, *rspiocb;
1090 IOCB_t *irsp;
1091 ADISC *ap;
1092
1093 cmdiocb = (struct lpfc_iocbq *) arg;
1094 rspiocb = cmdiocb->context_un.rsp_iocb;
1095
1096 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1097 irsp = &rspiocb->iocb;
1098
1099 if ((irsp->ulpStatus) ||
92d7f7b0 1100 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
dea3101e 1101 /* 1 sec timeout */
1102 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
2e0fef85 1103 spin_lock_irq(shost->host_lock);
dea3101e 1104 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1105 spin_unlock_irq(shost->host_lock);
5024ab17 1106 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1107
2e0fef85
JS		 1108 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name));
1109 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name));
dea3101e 1110
5024ab17 1111 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1112 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1113 lpfc_unreg_rpi(vport, ndlp);
c9f8735b 1114 return ndlp->nlp_state;
dea3101e 1115 }
5024ab17 1116
2501322e 1117 if (ndlp->nlp_type & NLP_FCP_TARGET) {
5024ab17 1118 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85 1119 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
2501322e 1120 } else {
5024ab17 1121 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85 1122 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
2501322e 1123 }
c9f8735b 1124 return ndlp->nlp_state;
dea3101e 1125}
1126
1127static uint32_t
2e0fef85
JS		 1128lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1129 void *arg, uint32_t evt)
dea3101e 1130{
2e0fef85
JS		 1131 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1132
1133 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1134 spin_lock_irq(shost->host_lock);
a0f9b48d 1135 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1136 spin_unlock_irq(shost->host_lock);
a0f9b48d 1137 return ndlp->nlp_state;
2e0fef85 1138 } else {
a0f9b48d 1139 /* software abort outstanding ADISC */
2e0fef85 1140 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1141
2e0fef85 1142 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1143 return NLP_STE_FREED_NODE;
1144 }
dea3101e 1145}
1146
1147static uint32_t
2e0fef85
JS		 1148lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
1149 struct lpfc_nodelist *ndlp,
1150 void *arg,
1151 uint32_t evt)
dea3101e 1152{
2e0fef85
JS		 1153 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1154 struct lpfc_hba *phba = vport->phba;
1155
92d7f7b0
JS		 1156 /* Don't do anything that will mess up processing of the
1157 * previous RSCN.
1158 */
1159 if (vport->fc_flag & FC_RSCN_DEFERRED)
1160 return ndlp->nlp_state;
1161
dea3101e 1162 /* software abort outstanding ADISC */
07951076 1163 lpfc_els_abort(phba, ndlp);
dea3101e 1164
5024ab17 1165 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
2e0fef85
JS		 1166 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1167 spin_lock_irq(shost->host_lock);
a0f9b48d 1168 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1169 spin_unlock_irq(shost->host_lock);
92d7f7b0 1170 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1171 return ndlp->nlp_state;
dea3101e 1172}
1173
1174static uint32_t
2e0fef85
JS		 1175lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
1176 struct lpfc_nodelist *ndlp,
1177 void *arg,
dea3101e 1178 uint32_t evt)
1179{
2e0fef85 1180 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1181
2e0fef85 1182 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1183 return ndlp->nlp_state;
dea3101e 1184}
1185
1186static uint32_t
2e0fef85
JS		 1187lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
1188 struct lpfc_nodelist *ndlp,
1189 void *arg,
dea3101e 1190 uint32_t evt)
1191{
2e0fef85 1192 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1193
2e0fef85 1194 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1195 return ndlp->nlp_state;
dea3101e 1196}
1197
1198static uint32_t
2e0fef85
JS		 1199lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
1200 struct lpfc_nodelist *ndlp,
1201 void *arg,
dea3101e 1202 uint32_t evt)
1203{
2e0fef85
JS		 1204 struct lpfc_hba *phba = vport->phba;
1205 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
7054a606
JS		 1206 LPFC_MBOXQ_t *mb;
1207 LPFC_MBOXQ_t *nextmb;
1208 struct lpfc_dmabuf *mp;
dea3101e 1209
1210 cmdiocb = (struct lpfc_iocbq *) arg;
1211
7054a606
JS		 1212 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
1213 if ((mb = phba->sli.mbox_active)) {
1214 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1215 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
92d7f7b0 1216 lpfc_nlp_put(ndlp);
7054a606
JS		 1217 mb->context2 = NULL;
1218 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1219 }
1220 }
1221
2e0fef85 1222 spin_lock_irq(&phba->hbalock);
7054a606
JS		 1223 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
1224 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
1225 (ndlp == (struct lpfc_nodelist *) mb->context2)) {
1226 mp = (struct lpfc_dmabuf *) (mb->context1);
1227 if (mp) {
98c9ea5c 1228 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
7054a606
JS		 1229 kfree(mp);
1230 }
92d7f7b0 1231 lpfc_nlp_put(ndlp);
7054a606
JS		 1232 list_del(&mb->list);
1233 mempool_free(mb, phba->mbox_mem_pool);
1234 }
1235 }
2e0fef85 1236 spin_unlock_irq(&phba->hbalock);
7054a606 1237
2e0fef85 1238 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1239 return ndlp->nlp_state;
dea3101e 1240}
1241
1242static uint32_t
2e0fef85
JS		 1243lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
1244 struct lpfc_nodelist *ndlp,
1245 void *arg,
dea3101e 1246 uint32_t evt)
1247{
2e0fef85 1248 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1249
2e0fef85 1250 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1251 return ndlp->nlp_state;
dea3101e 1252}
1253
1254static uint32_t
2e0fef85
JS		 1255lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
1256 struct lpfc_nodelist *ndlp,
1257 void *arg,
dea3101e 1258 uint32_t evt)
1259{
1260 struct lpfc_iocbq *cmdiocb;
1261
1262 cmdiocb = (struct lpfc_iocbq *) arg;
51ef4c26 1263 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1264 return ndlp->nlp_state;
dea3101e 1265}
1266
1267static uint32_t
2e0fef85
JS		 1268lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
1269 struct lpfc_nodelist *ndlp,
1270 void *arg,
1271 uint32_t evt)
dea3101e 1272{
2e0fef85 1273 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2e0fef85
JS		 1274 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1275 MAILBOX_t *mb = &pmb->mb;
1276 uint32_t did = mb->un.varWords[1];
dea3101e 1277
dea3101e 1278 if (mb->mbxStatus) {
1279 /* RegLogin failed */
e8b62011
JS		 1280 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1281 "0246 RegLogin failed Data: x%x x%x x%x\n",
2e0fef85 1282 did, mb->mbxStatus, vport->port_state);
d0e56dad
JS		 1283 /*
1284 * If RegLogin failed due to lack of HBA resources do not
1285 * retry discovery.
1286 */
1287 if (mb->mbxStatus == MBXERR_RPI_FULL) {
87af33fe
JS		 1288 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
1289 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
d0e56dad
JS		 1290 return ndlp->nlp_state;
1291 }
1292
2e0fef85 1293 /* Put ndlp in npr state set plogi timer for 1 sec */
dea3101e 1294 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2e0fef85 1295 spin_lock_irq(shost->host_lock);
dea3101e 1296 ndlp->nlp_flag |= NLP_DELAY_TMO;
2e0fef85 1297 spin_unlock_irq(shost->host_lock);
5024ab17 1298 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
dea3101e 1299
2e0fef85 1300 lpfc_issue_els_logo(vport, ndlp, 0);
5024ab17 1301 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85 1302 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
c9f8735b 1303 return ndlp->nlp_state;
dea3101e 1304 }
1305
dea3101e 1306 ndlp->nlp_rpi = mb->un.varWords[0];
dea3101e 1307
1308 /* Only if we are not a fabric nport do we issue PRLI */
1309 if (!(ndlp->nlp_type & NLP_FABRIC)) {
5024ab17 1310 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85
JS		 1311 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
1312 lpfc_issue_els_prli(vport, ndlp, 0);
dea3101e 1313 } else {
5024ab17 1314 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85 1315 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
dea3101e 1316 }
c9f8735b 1317 return ndlp->nlp_state;
dea3101e 1318}
1319
1320static uint32_t
2e0fef85
JS		 1321lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
1322 struct lpfc_nodelist *ndlp,
1323 void *arg,
dea3101e 1324 uint32_t evt)
1325{
2e0fef85
JS		 1326 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1327
1328 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1329 spin_lock_irq(shost->host_lock);
a0f9b48d 1330 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1331 spin_unlock_irq(shost->host_lock);
a0f9b48d 1332 return ndlp->nlp_state;
2e0fef85
JS		 1333 } else {
1334 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1335 return NLP_STE_FREED_NODE;
1336 }
dea3101e 1337}
1338
1339static uint32_t
2e0fef85
JS		 1340lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
1341 struct lpfc_nodelist *ndlp,
1342 void *arg,
1343 uint32_t evt)
dea3101e 1344{
2e0fef85
JS		 1345 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1346
92d7f7b0
JS		 1347 /* Don't do anything that will mess up processing of the
1348 * previous RSCN.
1349 */
1350 if (vport->fc_flag & FC_RSCN_DEFERRED)
1351 return ndlp->nlp_state;
1352
5024ab17 1353 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
2e0fef85
JS		 1354 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1355 spin_lock_irq(shost->host_lock);
a0f9b48d 1356 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1357 spin_unlock_irq(shost->host_lock);
92d7f7b0 1358 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1359 return ndlp->nlp_state;
dea3101e 1360}
1361
1362static uint32_t
2e0fef85
JS		 1363lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1364 void *arg, uint32_t evt)
dea3101e 1365{
1366 struct lpfc_iocbq *cmdiocb;
1367
1368 cmdiocb = (struct lpfc_iocbq *) arg;
1369
2e0fef85 1370 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1371 return ndlp->nlp_state;
dea3101e 1372}
1373
1374static uint32_t
2e0fef85
JS		 1375lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1376 void *arg, uint32_t evt)
dea3101e 1377{
2e0fef85 1378 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1379
2e0fef85 1380 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1381 return ndlp->nlp_state;
dea3101e 1382}
1383
1384static uint32_t
2e0fef85
JS		 1385lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1386 void *arg, uint32_t evt)
dea3101e 1387{
2e0fef85 1388 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1389
1390 /* Software abort outstanding PRLI before sending acc */
2e0fef85 1391 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1392
2e0fef85 1393 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1394 return ndlp->nlp_state;
dea3101e 1395}
1396
1397static uint32_t
2e0fef85
JS		 1398lpfc_rcv_padisc_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_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1404 return ndlp->nlp_state;
dea3101e 1405}
1406
1407/* This routine is envoked when we rcv a PRLO request from a nport
1408 * we are logged into. We should send back a PRLO rsp setting the
1409 * appropriate bits.
1410 * NEXT STATE = PRLI_ISSUE
1411 */
1412static uint32_t
2e0fef85
JS		 1413lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1414 void *arg, uint32_t evt)
dea3101e 1415{
2e0fef85 1416 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1417
51ef4c26 1418 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1419 return ndlp->nlp_state;
dea3101e 1420}
1421
1422static uint32_t
2e0fef85
JS		 1423lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1424 void *arg, uint32_t evt)
dea3101e 1425{
92d7f7b0 1426 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 1427 struct lpfc_iocbq *cmdiocb, *rspiocb;
2e0fef85 1428 struct lpfc_hba *phba = vport->phba;
dea3101e 1429 IOCB_t *irsp;
1430 PRLI *npr;
1431
1432 cmdiocb = (struct lpfc_iocbq *) arg;
1433 rspiocb = cmdiocb->context_un.rsp_iocb;
1434 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
1435
1436 irsp = &rspiocb->iocb;
1437 if (irsp->ulpStatus) {
858c9f6c 1438 if ((vport->port_type == LPFC_NPIV_PORT) &&
3de2a653 1439 vport->cfg_restrict_login) {
858c9f6c
JS		 1440 goto out;
1441 }
5024ab17 1442 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2e0fef85 1443 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
c9f8735b 1444 return ndlp->nlp_state;
dea3101e 1445 }
1446
1447 /* Check out PRLI rsp */
1448 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
1449 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
1450 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
1451 (npr->prliType == PRLI_FCP_TYPE)) {
1452 if (npr->initiatorFunc)
1453 ndlp->nlp_type |= NLP_FCP_INITIATOR;
1454 if (npr->targetFunc)
1455 ndlp->nlp_type |= NLP_FCP_TARGET;
1456 if (npr->Retry)
1457 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
1458 }
92d7f7b0
JS		 1459 if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
1460 (vport->port_type == LPFC_NPIV_PORT) &&
3de2a653 1461 vport->cfg_restrict_login) {
858c9f6c 1462out:
92d7f7b0
JS		 1463 spin_lock_irq(shost->host_lock);
1464 ndlp->nlp_flag |= NLP_TARGET_REMOVE;
1465 spin_unlock_irq(shost->host_lock);
1466 lpfc_issue_els_logo(vport, ndlp, 0);
1467
1468 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
87af33fe 1469 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
92d7f7b0
JS		 1470 return ndlp->nlp_state;
1471 }
dea3101e 1472
5024ab17 1473 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
92d7f7b0
JS		 1474 if (ndlp->nlp_type & NLP_FCP_TARGET)
1475 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
1476 else
1477 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
c9f8735b 1478 return ndlp->nlp_state;
dea3101e 1479}
1480
1481/*! lpfc_device_rm_prli_issue
92d7f7b0
JS		 1482 *
1483 * \pre
1484 * \post
1485 * \param phba
1486 * \param ndlp
1487 * \param arg
1488 * \param evt
1489 * \return uint32_t
1490 *
1491 * \b Description:
1492 * This routine is envoked when we a request to remove a nport we are in the
1493 * process of PRLIing. We should software abort outstanding prli, unreg
1494 * login, send a logout. We will change node state to UNUSED_NODE, put it
1495 * on plogi list so it can be freed when LOGO completes.
1496 *
1497 */
1498
dea3101e 1499static uint32_t
2e0fef85
JS		 1500lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1501 void *arg, uint32_t evt)
dea3101e 1502{
2e0fef85
JS		 1503 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1504
1505 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
1506 spin_lock_irq(shost->host_lock);
a0f9b48d 1507 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1508 spin_unlock_irq(shost->host_lock);
a0f9b48d 1509 return ndlp->nlp_state;
2e0fef85 1510 } else {
a0f9b48d 1511 /* software abort outstanding PLOGI */
2e0fef85 1512 lpfc_els_abort(vport->phba, ndlp);
dea3101e 1513
2e0fef85 1514 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1515 return NLP_STE_FREED_NODE;
1516 }
dea3101e 1517}
1518
1519
1520/*! lpfc_device_recov_prli_issue
92d7f7b0
JS		 1521 *
1522 * \pre
1523 * \post
1524 * \param phba
1525 * \param ndlp
1526 * \param arg
1527 * \param evt
1528 * \return uint32_t
1529 *
1530 * \b Description:
1531 * The routine is envoked when the state of a device is unknown, like
1532 * during a link down. We should remove the nodelist entry from the
1533 * unmapped list, issue a UNREG_LOGIN, do a software abort of the
1534 * outstanding PRLI command, then free the node entry.
1535 */
dea3101e 1536static uint32_t
2e0fef85
JS		 1537lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
1538 struct lpfc_nodelist *ndlp,
1539 void *arg,
1540 uint32_t evt)
dea3101e 1541{
2e0fef85
JS		 1542 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1543 struct lpfc_hba *phba = vport->phba;
1544
92d7f7b0
JS		 1545 /* Don't do anything that will mess up processing of the
1546 * previous RSCN.
1547 */
1548 if (vport->fc_flag & FC_RSCN_DEFERRED)
1549 return ndlp->nlp_state;
1550
dea3101e 1551 /* software abort outstanding PRLI */
07951076 1552 lpfc_els_abort(phba, ndlp);
dea3101e 1553
5024ab17 1554 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
2e0fef85
JS		 1555 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1556 spin_lock_irq(shost->host_lock);
a0f9b48d 1557 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1558 spin_unlock_irq(shost->host_lock);
92d7f7b0 1559 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1560 return ndlp->nlp_state;
dea3101e 1561}
1562
1563static uint32_t
2e0fef85
JS		 1564lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1565 void *arg, uint32_t evt)
dea3101e 1566{
2e0fef85 1567 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1568
2e0fef85 1569 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1570 return ndlp->nlp_state;
dea3101e 1571}
1572
1573static uint32_t
2e0fef85
JS		 1574lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1575 void *arg, uint32_t evt)
dea3101e 1576{
2e0fef85 1577 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1578
2e0fef85
JS		 1579 lpfc_rcv_prli(vport, ndlp, cmdiocb);
1580 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1581 return ndlp->nlp_state;
dea3101e 1582}
1583
1584static uint32_t
2e0fef85
JS		 1585lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1586 void *arg, uint32_t evt)
dea3101e 1587{
2e0fef85 1588 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1589
2e0fef85 1590 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1591 return ndlp->nlp_state;
dea3101e 1592}
1593
1594static uint32_t
2e0fef85
JS		 1595lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1596 void *arg, uint32_t evt)
dea3101e 1597{
2e0fef85 1598 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1599
2e0fef85 1600 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1601 return ndlp->nlp_state;
dea3101e 1602}
1603
1604static uint32_t
2e0fef85
JS		 1605lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1606 void *arg, uint32_t evt)
dea3101e 1607{
2e0fef85 1608 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1609
51ef4c26 1610 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
c9f8735b 1611 return ndlp->nlp_state;
dea3101e 1612}
1613
1614static uint32_t
2e0fef85
JS		 1615lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
1616 struct lpfc_nodelist *ndlp,
1617 void *arg,
1618 uint32_t evt)
dea3101e 1619{
2e0fef85
JS		 1620 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1621
5024ab17 1622 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
2e0fef85
JS		 1623 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1624 spin_lock_irq(shost->host_lock);
a0f9b48d 1625 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85
JS		 1626 spin_unlock_irq(shost->host_lock);
1627 lpfc_disc_set_adisc(vport, ndlp);
dea3101e 1628
c9f8735b 1629 return ndlp->nlp_state;
dea3101e 1630}
1631
1632static uint32_t
2e0fef85
JS		 1633lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1634 void *arg, uint32_t evt)
dea3101e 1635{
2e0fef85 1636 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1637
2e0fef85 1638 lpfc_rcv_plogi(vport, ndlp, cmdiocb);
c9f8735b 1639 return ndlp->nlp_state;
dea3101e 1640}
1641
1642static uint32_t
2e0fef85
JS		 1643lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1644 void *arg, uint32_t evt)
dea3101e 1645{
2e0fef85 1646 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1647
2e0fef85 1648 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
c9f8735b 1649 return ndlp->nlp_state;
dea3101e 1650}
1651
1652static uint32_t
2e0fef85
JS		 1653lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1654 void *arg, uint32_t evt)
dea3101e 1655{
2e0fef85 1656 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1657
2e0fef85 1658 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1659 return ndlp->nlp_state;
dea3101e 1660}
1661
1662static uint32_t
2e0fef85
JS		 1663lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
1664 struct lpfc_nodelist *ndlp,
1665 void *arg, uint32_t evt)
dea3101e 1666{
2e0fef85 1667 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1668
2e0fef85 1669 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
c9f8735b 1670 return ndlp->nlp_state;
dea3101e 1671}
1672
1673static uint32_t
2e0fef85
JS		 1674lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1675 void *arg, uint32_t evt)
dea3101e 1676{
2e0fef85
JS		 1677 struct lpfc_hba *phba = vport->phba;
1678 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1679
1680 /* flush the target */
51ef4c26
JS		 1681 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
1682 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
dea3101e 1683
1684 /* Treat like rcv logo */
2e0fef85 1685 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
c9f8735b 1686 return ndlp->nlp_state;
dea3101e 1687}
1688
1689static uint32_t
2e0fef85
JS		 1690lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
1691 struct lpfc_nodelist *ndlp,
1692 void *arg,
1693 uint32_t evt)
dea3101e 1694{
2e0fef85
JS		 1695 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1696
5024ab17 1697 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
2e0fef85
JS		 1698 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
1699 spin_lock_irq(shost->host_lock);
a0f9b48d 1700 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85
JS		 1701 spin_unlock_irq(shost->host_lock);
1702 lpfc_disc_set_adisc(vport, ndlp);
c9f8735b 1703 return ndlp->nlp_state;
dea3101e 1704}
1705
1706static uint32_t
2e0fef85
JS		 1707lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1708 void *arg, uint32_t evt)
dea3101e 1709{
2e0fef85
JS		 1710 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1711 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1712
1713 /* Ignore PLOGI if we have an outstanding LOGO */
0d2b6b83 1714 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
c9f8735b 1715 return ndlp->nlp_state;
2e0fef85 1716 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
0d2b6b83 1717 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2e0fef85 1718 spin_lock_irq(shost->host_lock);
0d2b6b83 1719 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
2e0fef85 1720 spin_unlock_irq(shost->host_lock);
0d2b6b83
JS		 1721 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
1722 /* send PLOGI immediately, move to PLOGI issue state */
1723 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1724 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
1725 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1726 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
1727 }
dea3101e 1728 }
c9f8735b 1729 return ndlp->nlp_state;
dea3101e 1730}
1731
1732static uint32_t
2e0fef85
JS		 1733lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1734 void *arg, uint32_t evt)
dea3101e 1735{
2e0fef85
JS		 1736 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1737 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
1738 struct ls_rjt stat;
dea3101e 1739
1740 memset(&stat, 0, sizeof (struct ls_rjt));
1741 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
1742 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
858c9f6c 1743 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
dea3101e 1744
1745 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
1746 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
2e0fef85 1747 spin_lock_irq(shost->host_lock);
c9f8735b 1748 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 1749 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1750 spin_unlock_irq(shost->host_lock);
1751 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1752 lpfc_issue_els_adisc(vport, ndlp, 0);
dea3101e 1753 } else {
5024ab17 1754 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1755 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1756 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e 1757 }
1758 }
c9f8735b 1759 return ndlp->nlp_state;
dea3101e 1760}
1761
1762static uint32_t
2e0fef85
JS		 1763lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1764 void *arg, uint32_t evt)
dea3101e 1765{
2e0fef85 1766 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1767
2e0fef85 1768 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
c9f8735b 1769 return ndlp->nlp_state;
dea3101e 1770}
1771
1772static uint32_t
2e0fef85
JS		 1773lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1774 void *arg, uint32_t evt)
dea3101e 1775{
2e0fef85 1776 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1777
2e0fef85 1778 lpfc_rcv_padisc(vport, ndlp, cmdiocb);
33ccf8d1
JS		 1779 /*
1780 * Do not start discovery if discovery is about to start
1781 * or discovery in progress for this node. Starting discovery
1782 * here will affect the counting of discovery threads.
1783 */
2fb9bd8b 1784 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
92d7f7b0 1785 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
dea3101e 1786 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
92d7f7b0 1787 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
5024ab17 1788 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1789 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
1790 lpfc_issue_els_adisc(vport, ndlp, 0);
dea3101e 1791 } else {
5024ab17 1792 ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
2e0fef85
JS		 1793 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
1794 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
dea3101e 1795 }
1796 }
c9f8735b 1797 return ndlp->nlp_state;
dea3101e 1798}
1799
1800static uint32_t
2e0fef85
JS		 1801lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1802 void *arg, uint32_t evt)
dea3101e 1803{
2e0fef85
JS		 1804 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1805 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
dea3101e 1806
2e0fef85 1807 spin_lock_irq(shost->host_lock);
c9f8735b 1808 ndlp->nlp_flag |= NLP_LOGO_ACC;
2e0fef85 1809 spin_unlock_irq(shost->host_lock);
c9f8735b 1810
51ef4c26 1811 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
dea3101e 1812
2e0fef85 1813 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
c9f8735b 1814 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
2e0fef85 1815 spin_lock_irq(shost->host_lock);
c9f8735b
JW		 1816 ndlp->nlp_flag |= NLP_DELAY_TMO;
1817 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 1818 spin_unlock_irq(shost->host_lock);
5024ab17 1819 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
c9f8735b 1820 } else {
2e0fef85 1821 spin_lock_irq(shost->host_lock);
c9f8735b 1822 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2e0fef85 1823 spin_unlock_irq(shost->host_lock);
dea3101e 1824 }
c9f8735b
JW		 1825 return ndlp->nlp_state;
1826}
dea3101e 1827
c9f8735b 1828static uint32_t
2e0fef85
JS		 1829lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1830 void *arg, uint32_t evt)
c9f8735b
JW		 1831{
1832 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 1833 IOCB_t *irsp;
c9f8735b
JW		 1834
1835 cmdiocb = (struct lpfc_iocbq *) arg;
1836 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 1837
1838 irsp = &rspiocb->iocb;
1839 if (irsp->ulpStatus) {
a8adb832 1840 ndlp->nlp_flag |= NLP_DEFER_RM;
a0f9b48d
JS		 1841 return NLP_STE_FREED_NODE;
1842 }
c9f8735b
JW		 1843 return ndlp->nlp_state;
1844}
1845
1846static uint32_t
2e0fef85
JS		 1847lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1848 void *arg, uint32_t evt)
c9f8735b
JW		 1849{
1850 struct lpfc_iocbq *cmdiocb, *rspiocb;
a0f9b48d 1851 IOCB_t *irsp;
c9f8735b
JW		 1852
1853 cmdiocb = (struct lpfc_iocbq *) arg;
1854 rspiocb = cmdiocb->context_un.rsp_iocb;
a0f9b48d
JS		 1855
1856 irsp = &rspiocb->iocb;
1857 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
2e0fef85 1858 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1859 return NLP_STE_FREED_NODE;
1860 }
c9f8735b 1861 return ndlp->nlp_state;
dea3101e 1862}
1863
1864static uint32_t
2e0fef85
JS		 1865lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1866 void *arg, uint32_t evt)
dea3101e 1867{
2e0fef85 1868 lpfc_unreg_rpi(vport, ndlp);
dea3101e 1869 /* This routine does nothing, just return the current state */
c9f8735b
JW		 1870 return ndlp->nlp_state;
1871}
1872
1873static uint32_t
2e0fef85
JS		 1874lpfc_cmpl_adisc_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_reglogin_npr_node(struct lpfc_vport *vport,
1893 struct lpfc_nodelist *ndlp,
1894 void *arg, uint32_t evt)
dea3101e 1895{
2e0fef85
JS		 1896 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
1897 MAILBOX_t *mb = &pmb->mb;
dea3101e 1898
c9f8735b
JW		 1899 if (!mb->mbxStatus)
1900 ndlp->nlp_rpi = mb->un.varWords[0];
a0f9b48d
JS		 1901 else {
1902 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
2e0fef85 1903 lpfc_drop_node(vport, ndlp);
a0f9b48d
JS		 1904 return NLP_STE_FREED_NODE;
1905 }
1906 }
c9f8735b 1907 return ndlp->nlp_state;
dea3101e 1908}
1909
1910static uint32_t
2e0fef85
JS		 1911lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1912 void *arg, uint32_t evt)
dea3101e 1913{
2e0fef85
JS		 1914 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1915
a0f9b48d 1916 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
2e0fef85 1917 spin_lock_irq(shost->host_lock);
a0f9b48d 1918 ndlp->nlp_flag |= NLP_NODEV_REMOVE;
2e0fef85 1919 spin_unlock_irq(shost->host_lock);
a0f9b48d
JS		 1920 return ndlp->nlp_state;
1921 }
2e0fef85 1922 lpfc_drop_node(vport, ndlp);
c9f8735b 1923 return NLP_STE_FREED_NODE;
dea3101e 1924}
1925
1926static uint32_t
2e0fef85
JS		 1927lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1928 void *arg, uint32_t evt)
dea3101e 1929{
2e0fef85
JS		 1930 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1931
92d7f7b0
JS		 1932 /* Don't do anything that will mess up processing of the
1933 * previous RSCN.
1934 */
1935 if (vport->fc_flag & FC_RSCN_DEFERRED)
1936 return ndlp->nlp_state;
1937
2e0fef85 1938 spin_lock_irq(shost->host_lock);
a0f9b48d 1939 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
2e0fef85 1940 spin_unlock_irq(shost->host_lock);
0d2b6b83 1941 lpfc_cancel_retry_delay_tmo(vport, ndlp);
c9f8735b 1942 return ndlp->nlp_state;
dea3101e 1943}
1944
1945
1946/* This next section defines the NPort Discovery State Machine */
1947
1948/* There are 4 different double linked lists nodelist entries can reside on.
1949 * The plogi list and adisc list are used when Link Up discovery or RSCN
1950 * processing is needed. Each list holds the nodes that we will send PLOGI
1951 * or ADISC on. These lists will keep track of what nodes will be effected
1952 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
1953 * The unmapped_list will contain all nodes that we have successfully logged
1954 * into at the Fibre Channel level. The mapped_list will contain all nodes
1955 * that are mapped FCP targets.
1956 */
1957/*
1958 * The bind list is a list of undiscovered (potentially non-existent) nodes
1959 * that we have saved binding information on. This information is used when
1960 * nodes transition from the unmapped to the mapped list.
1961 */
1962/* For UNUSED_NODE state, the node has just been allocated .
1963 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
1964 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
1965 * and put on the unmapped list. For ADISC processing, the node is taken off
1966 * the ADISC list and placed on either the mapped or unmapped list (depending
1967 * on its previous state). Once on the unmapped list, a PRLI is issued and the
1968 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
1969 * changed to UNMAPPED_NODE. If the completion indicates a mapped
1970 * node, the node is taken off the unmapped list. The binding list is checked
1971 * for a valid binding, or a binding is automatically assigned. If binding
1972 * assignment is unsuccessful, the node is left on the unmapped list. If
1973 * binding assignment is successful, the associated binding list entry (if
1974 * any) is removed, and the node is placed on the mapped list.
1975 */
1976/*
1977 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
c01f3208 1978 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
dea3101e 1979 * expire, all effected nodes will receive a DEVICE_RM event.
1980 */
1981/*
1982 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
1983 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
1984 * check, additional nodes may be added or removed (via DEVICE_RM) to / from
1985 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
1986 * we will first process the ADISC list. 32 entries are processed initially and
1987 * ADISC is initited for each one. Completions / Events for each node are
1988 * funnelled thru the state machine. As each node finishes ADISC processing, it
1989 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are
1990 * waiting, and the ADISC list count is identically 0, then we are done. For
1991 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
1992 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
1993 * list. 32 entries are processed initially and PLOGI is initited for each one.
1994 * Completions / Events for each node are funnelled thru the state machine. As
1995 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
1996 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
1997 * indentically 0, then we are done. We have now completed discovery / RSCN
1998 * handling. Upon completion, ALL nodes should be on either the mapped or
1999 * unmapped lists.
2000 */
2001
2002static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
2e0fef85 2003 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
dea3101e 2004 /* Action routine Event Current State */
2005 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
2006 lpfc_rcv_els_unused_node, /* RCV_PRLI */
2007 lpfc_rcv_logo_unused_node, /* RCV_LOGO */
2008 lpfc_rcv_els_unused_node, /* RCV_ADISC */
2009 lpfc_rcv_els_unused_node, /* RCV_PDISC */
2010 lpfc_rcv_els_unused_node, /* RCV_PRLO */
2011 lpfc_disc_illegal, /* CMPL_PLOGI */
2012 lpfc_disc_illegal, /* CMPL_PRLI */
2013 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
2014 lpfc_disc_illegal, /* CMPL_ADISC */
2015 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2016 lpfc_device_rm_unused_node, /* DEVICE_RM */
2017 lpfc_disc_illegal, /* DEVICE_RECOVERY */
2018
2019 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
92d7f7b0 2020 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
c9f8735b 2021 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
dea3101e 2022 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
2023 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
2024 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
2025 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
2026 lpfc_disc_illegal, /* CMPL_PRLI */
0ff10d46 2027 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
dea3101e 2028 lpfc_disc_illegal, /* CMPL_ADISC */
0ff10d46 2029 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
dea3101e 2030 lpfc_device_rm_plogi_issue, /* DEVICE_RM */
2031 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
2032
2033 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
2034 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
2035 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
2036 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
2037 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
2038 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
2039 lpfc_disc_illegal, /* CMPL_PLOGI */
2040 lpfc_disc_illegal, /* CMPL_PRLI */
2041 lpfc_disc_illegal, /* CMPL_LOGO */
2042 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
2043 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2044 lpfc_device_rm_adisc_issue, /* DEVICE_RM */
2045 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
2046
2047 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
2048 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
2049 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
2050 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
2051 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
2052 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
87af33fe 2053 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
dea3101e 2054 lpfc_disc_illegal, /* CMPL_PRLI */
2055 lpfc_disc_illegal, /* CMPL_LOGO */
2056 lpfc_disc_illegal, /* CMPL_ADISC */
2057 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
2058 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
2059 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
2060
2061 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
2062 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
2063 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
2064 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
2065 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
2066 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
87af33fe 2067 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
dea3101e 2068 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
2069 lpfc_disc_illegal, /* CMPL_LOGO */
2070 lpfc_disc_illegal, /* CMPL_ADISC */
2071 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2072 lpfc_device_rm_prli_issue, /* DEVICE_RM */
2073 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
2074
2075 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
2076 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
2077 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
2078 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
2079 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
2080 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
2081 lpfc_disc_illegal, /* CMPL_PLOGI */
2082 lpfc_disc_illegal, /* CMPL_PRLI */
2083 lpfc_disc_illegal, /* CMPL_LOGO */
2084 lpfc_disc_illegal, /* CMPL_ADISC */
2085 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2086 lpfc_disc_illegal, /* DEVICE_RM */
2087 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
2088
2089 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
2090 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
2091 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
2092 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
2093 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
2094 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
2095 lpfc_disc_illegal, /* CMPL_PLOGI */
2096 lpfc_disc_illegal, /* CMPL_PRLI */
2097 lpfc_disc_illegal, /* CMPL_LOGO */
2098 lpfc_disc_illegal, /* CMPL_ADISC */
2099 lpfc_disc_illegal, /* CMPL_REG_LOGIN */
2100 lpfc_disc_illegal, /* DEVICE_RM */
2101 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
2102
2103 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
2104 lpfc_rcv_prli_npr_node, /* RCV_PRLI */
2105 lpfc_rcv_logo_npr_node, /* RCV_LOGO */
2106 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
2107 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
2108 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
c9f8735b
JW		 2109 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
2110 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
dea3101e 2111 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
c9f8735b 2112 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
dea3101e 2113 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
2114 lpfc_device_rm_npr_node, /* DEVICE_RM */
2115 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
2116};
2117
2118int
2e0fef85
JS		 2119lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2120 void *arg, uint32_t evt)
dea3101e 2121{
2122 uint32_t cur_state, rc;
2e0fef85 2123 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
dea3101e 2124 uint32_t);
e47c9093
JS		 2125 uint32_t got_ndlp = 0;
2126
2127 if (lpfc_nlp_get(ndlp))
2128 got_ndlp = 1;
dea3101e 2129
dea3101e 2130 cur_state = ndlp->nlp_state;
2131
2132 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
e8b62011
JS		 2133 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2134 "0211 DSM in event x%x on NPort x%x in "
2135 "state %d Data: x%x\n",
2136 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
dea3101e 2137
858c9f6c
JS		 2138 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2139 "DSM in: evt:%d ste:%d did:x%x",
2140 evt, cur_state, ndlp->nlp_DID);
2141
dea3101e 2142 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
2e0fef85 2143 rc = (func) (vport, ndlp, arg, evt);
dea3101e 2144
2145 /* DSM out state <rc> on NPort <nlp_DID> */
e47c9093
JS		 2146 if (got_ndlp) {
2147 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
e8b62011
JS		 2148 "0212 DSM out state %d on NPort x%x Data: x%x\n",
2149 rc, ndlp->nlp_DID, ndlp->nlp_flag);
dea3101e 2150
e47c9093
JS		 2151 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2152 "DSM out: ste:%d did:x%x flg:x%x",
2153 rc, ndlp->nlp_DID, ndlp->nlp_flag);
2154 /* Decrement the ndlp reference count held for this function */
2155 lpfc_nlp_put(ndlp);
2156 } else {
2157 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2158 "0212 DSM out state %d on NPort free\n", rc);
858c9f6c 2159
e47c9093
JS		 2160 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2161 "DSM out: ste:%d did:x%x flg:x%x",
2162 rc, 0, 0);
2163 }
dea3101e 2164
c9f8735b 2165 return rc;
dea3101e 2166}
Linux kernel - Deliverables
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