1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2015 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 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. * 20 *******************************************************************/ 21 22#include <linux/blkdev.h> 23#include <linux/pci.h> 24#include <linux/slab.h> 25#include <linux/interrupt.h> 26 27#include <scsi/scsi.h> 28#include <scsi/scsi_device.h> 29#include <scsi/scsi_host.h> 30#include <scsi/scsi_transport_fc.h> 31 32#include "lpfc_hw4.h" 33#include "lpfc_hw.h" 34#include "lpfc_sli.h" 35#include "lpfc_sli4.h" 36#include "lpfc_nl.h" 37#include "lpfc_disc.h" 38#include "lpfc_scsi.h" 39#include "lpfc.h" 40#include "lpfc_logmsg.h" 41#include "lpfc_crtn.h" 42#include "lpfc_vport.h" 43#include "lpfc_debugfs.h" 44 45 46/* Called to verify a rcv'ed ADISC was intended for us. */ 47static int 48lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 49 struct lpfc_name *nn, struct lpfc_name *pn) 50{ 51 /* First, we MUST have a RPI registered */ 52 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 53 return 0; 54 55 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 56 * table entry for that node. 57 */ 58 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 59 return 0; 60 61 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 62 return 0; 63 64 /* we match, return success */ 65 return 1; 66} 67 68int 69lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 70 struct serv_parm *sp, uint32_t class, int flogi) 71{ 72 volatile struct serv_parm *hsp = &vport->fc_sparam; 73 uint16_t hsp_value, ssp_value = 0; 74 75 /* 76 * The receive data field size and buffer-to-buffer receive data field 77 * size entries are 16 bits but are represented as two 8-bit fields in 78 * the driver data structure to account for rsvd bits and other control 79 * bits. Reconstruct and compare the fields as a 16-bit values before 80 * correcting the byte values. 81 */ 82 if (sp->cls1.classValid) { 83 if (!flogi) { 84 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 85 hsp->cls1.rcvDataSizeLsb); 86 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 87 sp->cls1.rcvDataSizeLsb); 88 if (!ssp_value) 89 goto bad_service_param; 90 if (ssp_value > hsp_value) { 91 sp->cls1.rcvDataSizeLsb = 92 hsp->cls1.rcvDataSizeLsb; 93 sp->cls1.rcvDataSizeMsb = 94 hsp->cls1.rcvDataSizeMsb; 95 } 96 } 97 } else if (class == CLASS1) 98 goto bad_service_param; 99 if (sp->cls2.classValid) { 100 if (!flogi) { 101 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 102 hsp->cls2.rcvDataSizeLsb); 103 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 104 sp->cls2.rcvDataSizeLsb); 105 if (!ssp_value) 106 goto bad_service_param; 107 if (ssp_value > hsp_value) { 108 sp->cls2.rcvDataSizeLsb = 109 hsp->cls2.rcvDataSizeLsb; 110 sp->cls2.rcvDataSizeMsb = 111 hsp->cls2.rcvDataSizeMsb; 112 } 113 } 114 } else if (class == CLASS2) 115 goto bad_service_param; 116 if (sp->cls3.classValid) { 117 if (!flogi) { 118 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 119 hsp->cls3.rcvDataSizeLsb); 120 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 121 sp->cls3.rcvDataSizeLsb); 122 if (!ssp_value) 123 goto bad_service_param; 124 if (ssp_value > hsp_value) { 125 sp->cls3.rcvDataSizeLsb = 126 hsp->cls3.rcvDataSizeLsb; 127 sp->cls3.rcvDataSizeMsb = 128 hsp->cls3.rcvDataSizeMsb; 129 } 130 } 131 } else if (class == CLASS3) 132 goto bad_service_param; 133 134 /* 135 * Preserve the upper four bits of the MSB from the PLOGI response. 136 * These bits contain the Buffer-to-Buffer State Change Number 137 * from the target and need to be passed to the FW. 138 */ 139 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 140 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 141 if (ssp_value > hsp_value) { 142 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 143 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 144 (hsp->cmn.bbRcvSizeMsb & 0x0F); 145 } 146 147 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 148 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 149 return 1; 150bad_service_param: 151 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 152 "0207 Device %x " 153 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 154 "invalid service parameters. Ignoring device.\n", 155 ndlp->nlp_DID, 156 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 157 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 158 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 159 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 160 return 0; 161} 162 163static void * 164lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 165 struct lpfc_iocbq *rspiocb) 166{ 167 struct lpfc_dmabuf *pcmd, *prsp; 168 uint32_t *lp; 169 void *ptr = NULL; 170 IOCB_t *irsp; 171 172 irsp = &rspiocb->iocb; 173 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 174 175 /* For lpfc_els_abort, context2 could be zero'ed to delay 176 * freeing associated memory till after ABTS completes. 177 */ 178 if (pcmd) { 179 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 180 list); 181 if (prsp) { 182 lp = (uint32_t *) prsp->virt; 183 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 184 } 185 } else { 186 /* Force ulpStatus error since we are returning NULL ptr */ 187 if (!(irsp->ulpStatus)) { 188 irsp->ulpStatus = IOSTAT_LOCAL_REJECT; 189 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED; 190 } 191 ptr = NULL; 192 } 193 return ptr; 194} 195 196 197 198/* 199 * Free resources / clean up outstanding I/Os 200 * associated with a LPFC_NODELIST entry. This 201 * routine effectively results in a "software abort". 202 */ 203int 204lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 205{ 206 LIST_HEAD(abort_list); 207 struct lpfc_sli *psli = &phba->sli; 208 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; 209 struct lpfc_iocbq *iocb, *next_iocb; 210 211 /* Abort outstanding I/O on NPort <nlp_DID> */ 212 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 213 "2819 Abort outstanding I/O on NPort x%x " 214 "Data: x%x x%x x%x\n", 215 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 216 ndlp->nlp_rpi); 217 /* Clean up all fabric IOs first.*/ 218 lpfc_fabric_abort_nport(ndlp); 219 220 /* 221 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 222 * of all ELS IOs that need an ABTS. The IOs need to stay on the 223 * txcmplq so that the abort operation completes them successfully. 224 */ 225 spin_lock_irq(&phba->hbalock); 226 if (phba->sli_rev == LPFC_SLI_REV4) 227 spin_lock(&pring->ring_lock); 228 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 229 /* Add to abort_list on on NDLP match. */ 230 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 231 list_add_tail(&iocb->dlist, &abort_list); 232 } 233 if (phba->sli_rev == LPFC_SLI_REV4) 234 spin_unlock(&pring->ring_lock); 235 spin_unlock_irq(&phba->hbalock); 236 237 /* Abort the targeted IOs and remove them from the abort list. */ 238 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 239 spin_lock_irq(&phba->hbalock); 240 list_del_init(&iocb->dlist); 241 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 242 spin_unlock_irq(&phba->hbalock); 243 } 244 245 INIT_LIST_HEAD(&abort_list); 246 247 /* Now process the txq */ 248 spin_lock_irq(&phba->hbalock); 249 if (phba->sli_rev == LPFC_SLI_REV4) 250 spin_lock(&pring->ring_lock); 251 252 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 253 /* Check to see if iocb matches the nport we are looking for */ 254 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 255 list_del_init(&iocb->list); 256 list_add_tail(&iocb->list, &abort_list); 257 } 258 } 259 260 if (phba->sli_rev == LPFC_SLI_REV4) 261 spin_unlock(&pring->ring_lock); 262 spin_unlock_irq(&phba->hbalock); 263 264 /* Cancel all the IOCBs from the completions list */ 265 lpfc_sli_cancel_iocbs(phba, &abort_list, 266 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 267 268 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 269 return 0; 270} 271 272static int 273lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 274 struct lpfc_iocbq *cmdiocb) 275{ 276 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 277 struct lpfc_hba *phba = vport->phba; 278 struct lpfc_dmabuf *pcmd; 279 uint64_t nlp_portwwn = 0; 280 uint32_t *lp; 281 IOCB_t *icmd; 282 struct serv_parm *sp; 283 LPFC_MBOXQ_t *mbox; 284 struct ls_rjt stat; 285 int rc; 286 287 memset(&stat, 0, sizeof (struct ls_rjt)); 288 if (vport->port_state <= LPFC_FDISC) { 289 /* Before responding to PLOGI, check for pt2pt mode. 290 * If we are pt2pt, with an outstanding FLOGI, abort 291 * the FLOGI and resend it first. 292 */ 293 if (vport->fc_flag & FC_PT2PT) { 294 lpfc_els_abort_flogi(phba); 295 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) { 296 /* If the other side is supposed to initiate 297 * the PLOGI anyway, just ACC it now and 298 * move on with discovery. 299 */ 300 phba->fc_edtov = FF_DEF_EDTOV; 301 phba->fc_ratov = FF_DEF_RATOV; 302 /* Start discovery - this should just do 303 CLEAR_LA */ 304 lpfc_disc_start(vport); 305 } else 306 lpfc_initial_flogi(vport); 307 } else { 308 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 309 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 310 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 311 ndlp, NULL); 312 return 0; 313 } 314 } 315 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 316 lp = (uint32_t *) pcmd->virt; 317 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 318 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 319 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 320 "0140 PLOGI Reject: invalid nname\n"); 321 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 322 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 323 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 324 NULL); 325 return 0; 326 } 327 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 328 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 329 "0141 PLOGI Reject: invalid pname\n"); 330 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 331 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 332 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 333 NULL); 334 return 0; 335 } 336 337 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 338 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 339 /* Reject this request because invalid parameters */ 340 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 341 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 342 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 343 NULL); 344 return 0; 345 } 346 icmd = &cmdiocb->iocb; 347 348 /* PLOGI chkparm OK */ 349 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 350 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 351 "x%x x%x x%x\n", 352 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 353 ndlp->nlp_rpi, vport->port_state, 354 vport->fc_flag); 355 356 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 357 ndlp->nlp_fcp_info |= CLASS2; 358 else 359 ndlp->nlp_fcp_info |= CLASS3; 360 361 ndlp->nlp_class_sup = 0; 362 if (sp->cls1.classValid) 363 ndlp->nlp_class_sup |= FC_COS_CLASS1; 364 if (sp->cls2.classValid) 365 ndlp->nlp_class_sup |= FC_COS_CLASS2; 366 if (sp->cls3.classValid) 367 ndlp->nlp_class_sup |= FC_COS_CLASS3; 368 if (sp->cls4.classValid) 369 ndlp->nlp_class_sup |= FC_COS_CLASS4; 370 ndlp->nlp_maxframe = 371 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 372 373 /* if already logged in, do implicit logout */ 374 switch (ndlp->nlp_state) { 375 case NLP_STE_NPR_NODE: 376 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 377 break; 378 case NLP_STE_REG_LOGIN_ISSUE: 379 case NLP_STE_PRLI_ISSUE: 380 case NLP_STE_UNMAPPED_NODE: 381 case NLP_STE_MAPPED_NODE: 382 /* lpfc_plogi_confirm_nport skips fabric did, handle it here */ 383 if (!(ndlp->nlp_type & NLP_FABRIC)) { 384 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 385 ndlp, NULL); 386 return 1; 387 } 388 if (nlp_portwwn != 0 && 389 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 390 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 391 "0143 PLOGI recv'd from DID: x%x " 392 "WWPN changed: old %llx new %llx\n", 393 ndlp->nlp_DID, 394 (unsigned long long)nlp_portwwn, 395 (unsigned long long) 396 wwn_to_u64(sp->portName.u.wwn)); 397 398 ndlp->nlp_prev_state = ndlp->nlp_state; 399 /* rport needs to be unregistered first */ 400 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 401 break; 402 } 403 404 /* Check for Nport to NPort pt2pt protocol */ 405 if ((vport->fc_flag & FC_PT2PT) && 406 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 407 408 /* rcv'ed PLOGI decides what our NPortId will be */ 409 vport->fc_myDID = icmd->un.rcvels.parmRo; 410 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 411 if (mbox == NULL) 412 goto out; 413 lpfc_config_link(phba, mbox); 414 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 415 mbox->vport = vport; 416 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 417 if (rc == MBX_NOT_FINISHED) { 418 mempool_free(mbox, phba->mbox_mem_pool); 419 goto out; 420 } 421 /* 422 * For SLI4, the VFI/VPI are registered AFTER the 423 * Nport with the higher WWPN sends us a PLOGI with 424 * our assigned NPortId. 425 */ 426 if (phba->sli_rev == LPFC_SLI_REV4) 427 lpfc_issue_reg_vfi(vport); 428 429 lpfc_can_disctmo(vport); 430 } 431 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 432 if (!mbox) 433 goto out; 434 435 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 436 if (phba->sli_rev == LPFC_SLI_REV4) 437 lpfc_unreg_rpi(vport, ndlp); 438 439 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID, 440 (uint8_t *) sp, mbox, ndlp->nlp_rpi); 441 if (rc) { 442 mempool_free(mbox, phba->mbox_mem_pool); 443 goto out; 444 } 445 446 /* ACC PLOGI rsp command needs to execute first, 447 * queue this mbox command to be processed later. 448 */ 449 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 450 /* 451 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox 452 * command issued in lpfc_cmpl_els_acc(). 453 */ 454 mbox->vport = vport; 455 spin_lock_irq(shost->host_lock); 456 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 457 spin_unlock_irq(shost->host_lock); 458 459 /* 460 * If there is an outstanding PLOGI issued, abort it before 461 * sending ACC rsp for received PLOGI. If pending plogi 462 * is not canceled here, the plogi will be rejected by 463 * remote port and will be retried. On a configuration with 464 * single discovery thread, this will cause a huge delay in 465 * discovery. Also this will cause multiple state machines 466 * running in parallel for this node. 467 */ 468 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { 469 /* software abort outstanding PLOGI */ 470 lpfc_els_abort(phba, ndlp); 471 } 472 473 if ((vport->port_type == LPFC_NPIV_PORT && 474 vport->cfg_restrict_login)) { 475 476 /* In order to preserve RPIs, we want to cleanup 477 * the default RPI the firmware created to rcv 478 * this ELS request. The only way to do this is 479 * to register, then unregister the RPI. 480 */ 481 spin_lock_irq(shost->host_lock); 482 ndlp->nlp_flag |= NLP_RM_DFLT_RPI; 483 spin_unlock_irq(shost->host_lock); 484 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 485 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 486 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 487 ndlp, mbox); 488 if (rc) 489 mempool_free(mbox, phba->mbox_mem_pool); 490 return 1; 491 } 492 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox); 493 if (rc) 494 mempool_free(mbox, phba->mbox_mem_pool); 495 return 1; 496out: 497 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 498 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 499 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 500 return 0; 501} 502 503/** 504 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 505 * @phba: pointer to lpfc hba data structure. 506 * @mboxq: pointer to mailbox object 507 * 508 * This routine is invoked to issue a completion to a rcv'ed 509 * ADISC or PDISC after the paused RPI has been resumed. 510 **/ 511static void 512lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 513{ 514 struct lpfc_vport *vport; 515 struct lpfc_iocbq *elsiocb; 516 struct lpfc_nodelist *ndlp; 517 uint32_t cmd; 518 519 elsiocb = (struct lpfc_iocbq *)mboxq->context1; 520 ndlp = (struct lpfc_nodelist *) mboxq->context2; 521 vport = mboxq->vport; 522 cmd = elsiocb->drvrTimeout; 523 524 if (cmd == ELS_CMD_ADISC) { 525 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 526 } else { 527 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 528 ndlp, NULL); 529 } 530 kfree(elsiocb); 531 mempool_free(mboxq, phba->mbox_mem_pool); 532} 533 534static int 535lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 536 struct lpfc_iocbq *cmdiocb) 537{ 538 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 539 struct lpfc_iocbq *elsiocb; 540 struct lpfc_dmabuf *pcmd; 541 struct serv_parm *sp; 542 struct lpfc_name *pnn, *ppn; 543 struct ls_rjt stat; 544 ADISC *ap; 545 IOCB_t *icmd; 546 uint32_t *lp; 547 uint32_t cmd; 548 549 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 550 lp = (uint32_t *) pcmd->virt; 551 552 cmd = *lp++; 553 if (cmd == ELS_CMD_ADISC) { 554 ap = (ADISC *) lp; 555 pnn = (struct lpfc_name *) & ap->nodeName; 556 ppn = (struct lpfc_name *) & ap->portName; 557 } else { 558 sp = (struct serv_parm *) lp; 559 pnn = (struct lpfc_name *) & sp->nodeName; 560 ppn = (struct lpfc_name *) & sp->portName; 561 } 562 563 icmd = &cmdiocb->iocb; 564 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 565 566 /* 567 * As soon as we send ACC, the remote NPort can 568 * start sending us data. Thus, for SLI4 we must 569 * resume the RPI before the ACC goes out. 570 */ 571 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 572 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 573 GFP_KERNEL); 574 if (elsiocb) { 575 576 /* Save info from cmd IOCB used in rsp */ 577 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 578 sizeof(struct lpfc_iocbq)); 579 580 /* Save the ELS cmd */ 581 elsiocb->drvrTimeout = cmd; 582 583 lpfc_sli4_resume_rpi(ndlp, 584 lpfc_mbx_cmpl_resume_rpi, elsiocb); 585 goto out; 586 } 587 } 588 589 if (cmd == ELS_CMD_ADISC) { 590 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 591 } else { 592 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 593 ndlp, NULL); 594 } 595out: 596 /* If we are authenticated, move to the proper state */ 597 if (ndlp->nlp_type & NLP_FCP_TARGET) 598 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 599 else 600 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 601 602 return 1; 603 } 604 /* Reject this request because invalid parameters */ 605 stat.un.b.lsRjtRsvd0 = 0; 606 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 607 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 608 stat.un.b.vendorUnique = 0; 609 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 610 611 /* 1 sec timeout */ 612 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 613 614 spin_lock_irq(shost->host_lock); 615 ndlp->nlp_flag |= NLP_DELAY_TMO; 616 spin_unlock_irq(shost->host_lock); 617 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 618 ndlp->nlp_prev_state = ndlp->nlp_state; 619 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 620 return 0; 621} 622 623static int 624lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 625 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 626{ 627 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 628 struct lpfc_hba *phba = vport->phba; 629 struct lpfc_vport **vports; 630 int i, active_vlink_present = 0 ; 631 632 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 633 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 634 * PLOGIs during LOGO storms from a device. 635 */ 636 spin_lock_irq(shost->host_lock); 637 ndlp->nlp_flag |= NLP_LOGO_ACC; 638 spin_unlock_irq(shost->host_lock); 639 if (els_cmd == ELS_CMD_PRLO) 640 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 641 else 642 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 643 if (ndlp->nlp_DID == Fabric_DID) { 644 if (vport->port_state <= LPFC_FDISC) 645 goto out; 646 lpfc_linkdown_port(vport); 647 spin_lock_irq(shost->host_lock); 648 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 649 spin_unlock_irq(shost->host_lock); 650 vports = lpfc_create_vport_work_array(phba); 651 if (vports) { 652 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 653 i++) { 654 if ((!(vports[i]->fc_flag & 655 FC_VPORT_LOGO_RCVD)) && 656 (vports[i]->port_state > LPFC_FDISC)) { 657 active_vlink_present = 1; 658 break; 659 } 660 } 661 lpfc_destroy_vport_work_array(phba, vports); 662 } 663 664 if (active_vlink_present) { 665 /* 666 * If there are other active VLinks present, 667 * re-instantiate the Vlink using FDISC. 668 */ 669 mod_timer(&ndlp->nlp_delayfunc, 670 jiffies + msecs_to_jiffies(1000)); 671 spin_lock_irq(shost->host_lock); 672 ndlp->nlp_flag |= NLP_DELAY_TMO; 673 spin_unlock_irq(shost->host_lock); 674 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 675 vport->port_state = LPFC_FDISC; 676 } else { 677 spin_lock_irq(shost->host_lock); 678 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 679 spin_unlock_irq(shost->host_lock); 680 lpfc_retry_pport_discovery(phba); 681 } 682 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 683 ((ndlp->nlp_type & NLP_FCP_TARGET) || 684 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || 685 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 686 /* Only try to re-login if this is NOT a Fabric Node */ 687 mod_timer(&ndlp->nlp_delayfunc, 688 jiffies + msecs_to_jiffies(1000 * 1)); 689 spin_lock_irq(shost->host_lock); 690 ndlp->nlp_flag |= NLP_DELAY_TMO; 691 spin_unlock_irq(shost->host_lock); 692 693 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 694 } 695out: 696 ndlp->nlp_prev_state = ndlp->nlp_state; 697 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 698 699 spin_lock_irq(shost->host_lock); 700 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 701 spin_unlock_irq(shost->host_lock); 702 /* The driver has to wait until the ACC completes before it continues 703 * processing the LOGO. The action will resume in 704 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 705 * unreg_login, the driver waits so the ACC does not get aborted. 706 */ 707 return 0; 708} 709 710static void 711lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 712 struct lpfc_iocbq *cmdiocb) 713{ 714 struct lpfc_dmabuf *pcmd; 715 uint32_t *lp; 716 PRLI *npr; 717 struct fc_rport *rport = ndlp->rport; 718 u32 roles; 719 720 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 721 lp = (uint32_t *) pcmd->virt; 722 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 723 724 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 725 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 726 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 727 if (npr->prliType == PRLI_FCP_TYPE) { 728 if (npr->initiatorFunc) 729 ndlp->nlp_type |= NLP_FCP_INITIATOR; 730 if (npr->targetFunc) { 731 ndlp->nlp_type |= NLP_FCP_TARGET; 732 if (npr->writeXferRdyDis) 733 ndlp->nlp_flag |= NLP_FIRSTBURST; 734 } 735 if (npr->Retry) 736 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 737 } 738 if (rport) { 739 /* We need to update the rport role values */ 740 roles = FC_RPORT_ROLE_UNKNOWN; 741 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 742 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 743 if (ndlp->nlp_type & NLP_FCP_TARGET) 744 roles |= FC_RPORT_ROLE_FCP_TARGET; 745 746 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 747 "rport rolechg: role:x%x did:x%x flg:x%x", 748 roles, ndlp->nlp_DID, ndlp->nlp_flag); 749 750 fc_remote_port_rolechg(rport, roles); 751 } 752} 753 754static uint32_t 755lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 756{ 757 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 758 759 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 760 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 761 return 0; 762 } 763 764 if (!(vport->fc_flag & FC_PT2PT)) { 765 /* Check config parameter use-adisc or FCP-2 */ 766 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) || 767 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 768 (ndlp->nlp_type & NLP_FCP_TARGET))) { 769 spin_lock_irq(shost->host_lock); 770 ndlp->nlp_flag |= NLP_NPR_ADISC; 771 spin_unlock_irq(shost->host_lock); 772 return 1; 773 } 774 } 775 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 776 lpfc_unreg_rpi(vport, ndlp); 777 return 0; 778} 779 780/** 781 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 782 * @phba : Pointer to lpfc_hba structure. 783 * @vport: Pointer to lpfc_vport structure. 784 * @rpi : rpi to be release. 785 * 786 * This function will send a unreg_login mailbox command to the firmware 787 * to release a rpi. 788 **/ 789void 790lpfc_release_rpi(struct lpfc_hba *phba, 791 struct lpfc_vport *vport, 792 uint16_t rpi) 793{ 794 LPFC_MBOXQ_t *pmb; 795 int rc; 796 797 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 798 GFP_KERNEL); 799 if (!pmb) 800 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 801 "2796 mailbox memory allocation failed \n"); 802 else { 803 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 804 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 805 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 806 if (rc == MBX_NOT_FINISHED) 807 mempool_free(pmb, phba->mbox_mem_pool); 808 } 809} 810 811static uint32_t 812lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 813 void *arg, uint32_t evt) 814{ 815 struct lpfc_hba *phba; 816 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 817 MAILBOX_t *mb; 818 uint16_t rpi; 819 820 phba = vport->phba; 821 /* Release the RPI if reglogin completing */ 822 if (!(phba->pport->load_flag & FC_UNLOADING) && 823 (evt == NLP_EVT_CMPL_REG_LOGIN) && 824 (!pmb->u.mb.mbxStatus)) { 825 mb = &pmb->u.mb; 826 rpi = pmb->u.mb.un.varWords[0]; 827 lpfc_release_rpi(phba, vport, rpi); 828 } 829 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 830 "0271 Illegal State Transition: node x%x " 831 "event x%x, state x%x Data: x%x x%x\n", 832 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 833 ndlp->nlp_flag); 834 return ndlp->nlp_state; 835} 836 837static uint32_t 838lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 839 void *arg, uint32_t evt) 840{ 841 /* This transition is only legal if we previously 842 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 843 * working on the same NPortID, do nothing for this thread 844 * to stop it. 845 */ 846 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 847 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 848 "0272 Illegal State Transition: node x%x " 849 "event x%x, state x%x Data: x%x x%x\n", 850 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 851 ndlp->nlp_flag); 852 } 853 return ndlp->nlp_state; 854} 855 856/* Start of Discovery State Machine routines */ 857 858static uint32_t 859lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 860 void *arg, uint32_t evt) 861{ 862 struct lpfc_iocbq *cmdiocb; 863 864 cmdiocb = (struct lpfc_iocbq *) arg; 865 866 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 867 return ndlp->nlp_state; 868 } 869 return NLP_STE_FREED_NODE; 870} 871 872static uint32_t 873lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 874 void *arg, uint32_t evt) 875{ 876 lpfc_issue_els_logo(vport, ndlp, 0); 877 return ndlp->nlp_state; 878} 879 880static uint32_t 881lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 882 void *arg, uint32_t evt) 883{ 884 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 885 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 886 887 spin_lock_irq(shost->host_lock); 888 ndlp->nlp_flag |= NLP_LOGO_ACC; 889 spin_unlock_irq(shost->host_lock); 890 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 891 892 return ndlp->nlp_state; 893} 894 895static uint32_t 896lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 897 void *arg, uint32_t evt) 898{ 899 return NLP_STE_FREED_NODE; 900} 901 902static uint32_t 903lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 904 void *arg, uint32_t evt) 905{ 906 return NLP_STE_FREED_NODE; 907} 908 909static uint32_t 910lpfc_device_recov_unused_node(struct lpfc_vport *vport, 911 struct lpfc_nodelist *ndlp, 912 void *arg, uint32_t evt) 913{ 914 return ndlp->nlp_state; 915} 916 917static uint32_t 918lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 919 void *arg, uint32_t evt) 920{ 921 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 922 struct lpfc_hba *phba = vport->phba; 923 struct lpfc_iocbq *cmdiocb = arg; 924 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 925 uint32_t *lp = (uint32_t *) pcmd->virt; 926 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 927 struct ls_rjt stat; 928 int port_cmp; 929 930 memset(&stat, 0, sizeof (struct ls_rjt)); 931 932 /* For a PLOGI, we only accept if our portname is less 933 * than the remote portname. 934 */ 935 phba->fc_stat.elsLogiCol++; 936 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 937 sizeof(struct lpfc_name)); 938 939 if (port_cmp >= 0) { 940 /* Reject this request because the remote node will accept 941 ours */ 942 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 943 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 944 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 945 NULL); 946 } else { 947 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 948 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 949 (vport->num_disc_nodes)) { 950 spin_lock_irq(shost->host_lock); 951 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 952 spin_unlock_irq(shost->host_lock); 953 /* Check if there are more PLOGIs to be sent */ 954 lpfc_more_plogi(vport); 955 if (vport->num_disc_nodes == 0) { 956 spin_lock_irq(shost->host_lock); 957 vport->fc_flag &= ~FC_NDISC_ACTIVE; 958 spin_unlock_irq(shost->host_lock); 959 lpfc_can_disctmo(vport); 960 lpfc_end_rscn(vport); 961 } 962 } 963 } /* If our portname was less */ 964 965 return ndlp->nlp_state; 966} 967 968static uint32_t 969lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 970 void *arg, uint32_t evt) 971{ 972 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 973 struct ls_rjt stat; 974 975 memset(&stat, 0, sizeof (struct ls_rjt)); 976 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 977 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 978 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 979 return ndlp->nlp_state; 980} 981 982static uint32_t 983lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 984 void *arg, uint32_t evt) 985{ 986 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 987 988 /* software abort outstanding PLOGI */ 989 lpfc_els_abort(vport->phba, ndlp); 990 991 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 992 return ndlp->nlp_state; 993} 994 995static uint32_t 996lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 997 void *arg, uint32_t evt) 998{ 999 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1000 struct lpfc_hba *phba = vport->phba; 1001 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1002 1003 /* software abort outstanding PLOGI */ 1004 lpfc_els_abort(phba, ndlp); 1005 1006 if (evt == NLP_EVT_RCV_LOGO) { 1007 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1008 } else { 1009 lpfc_issue_els_logo(vport, ndlp, 0); 1010 } 1011 1012 /* Put ndlp in npr state set plogi timer for 1 sec */ 1013 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1014 spin_lock_irq(shost->host_lock); 1015 ndlp->nlp_flag |= NLP_DELAY_TMO; 1016 spin_unlock_irq(shost->host_lock); 1017 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1018 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1019 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1020 1021 return ndlp->nlp_state; 1022} 1023 1024static uint32_t 1025lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1026 struct lpfc_nodelist *ndlp, 1027 void *arg, 1028 uint32_t evt) 1029{ 1030 struct lpfc_hba *phba = vport->phba; 1031 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1032 struct lpfc_iocbq *cmdiocb, *rspiocb; 1033 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1034 uint32_t *lp; 1035 IOCB_t *irsp; 1036 struct serv_parm *sp; 1037 LPFC_MBOXQ_t *mbox; 1038 1039 cmdiocb = (struct lpfc_iocbq *) arg; 1040 rspiocb = cmdiocb->context_un.rsp_iocb; 1041 1042 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1043 /* Recovery from PLOGI collision logic */ 1044 return ndlp->nlp_state; 1045 } 1046 1047 irsp = &rspiocb->iocb; 1048 1049 if (irsp->ulpStatus) 1050 goto out; 1051 1052 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1053 1054 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1055 if (!prsp) 1056 goto out; 1057 1058 lp = (uint32_t *) prsp->virt; 1059 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1060 1061 /* Some switches have FDMI servers returning 0 for WWN */ 1062 if ((ndlp->nlp_DID != FDMI_DID) && 1063 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1064 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1065 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1066 "0142 PLOGI RSP: Invalid WWN.\n"); 1067 goto out; 1068 } 1069 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1070 goto out; 1071 /* PLOGI chkparm OK */ 1072 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1073 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1074 ndlp->nlp_DID, ndlp->nlp_state, 1075 ndlp->nlp_flag, ndlp->nlp_rpi); 1076 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1077 ndlp->nlp_fcp_info |= CLASS2; 1078 else 1079 ndlp->nlp_fcp_info |= CLASS3; 1080 1081 ndlp->nlp_class_sup = 0; 1082 if (sp->cls1.classValid) 1083 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1084 if (sp->cls2.classValid) 1085 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1086 if (sp->cls3.classValid) 1087 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1088 if (sp->cls4.classValid) 1089 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1090 ndlp->nlp_maxframe = 1091 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1092 1093 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1094 if (!mbox) { 1095 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1096 "0133 PLOGI: no memory for reg_login " 1097 "Data: x%x x%x x%x x%x\n", 1098 ndlp->nlp_DID, ndlp->nlp_state, 1099 ndlp->nlp_flag, ndlp->nlp_rpi); 1100 goto out; 1101 } 1102 1103 lpfc_unreg_rpi(vport, ndlp); 1104 1105 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1106 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1107 switch (ndlp->nlp_DID) { 1108 case NameServer_DID: 1109 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1110 break; 1111 case FDMI_DID: 1112 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1113 break; 1114 default: 1115 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1116 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1117 } 1118 mbox->context2 = lpfc_nlp_get(ndlp); 1119 mbox->vport = vport; 1120 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1121 != MBX_NOT_FINISHED) { 1122 lpfc_nlp_set_state(vport, ndlp, 1123 NLP_STE_REG_LOGIN_ISSUE); 1124 return ndlp->nlp_state; 1125 } 1126 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1127 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1128 /* decrement node reference count to the failed mbox 1129 * command 1130 */ 1131 lpfc_nlp_put(ndlp); 1132 mp = (struct lpfc_dmabuf *) mbox->context1; 1133 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1134 kfree(mp); 1135 mempool_free(mbox, phba->mbox_mem_pool); 1136 1137 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1138 "0134 PLOGI: cannot issue reg_login " 1139 "Data: x%x x%x x%x x%x\n", 1140 ndlp->nlp_DID, ndlp->nlp_state, 1141 ndlp->nlp_flag, ndlp->nlp_rpi); 1142 } else { 1143 mempool_free(mbox, phba->mbox_mem_pool); 1144 1145 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1146 "0135 PLOGI: cannot format reg_login " 1147 "Data: x%x x%x x%x x%x\n", 1148 ndlp->nlp_DID, ndlp->nlp_state, 1149 ndlp->nlp_flag, ndlp->nlp_rpi); 1150 } 1151 1152 1153out: 1154 if (ndlp->nlp_DID == NameServer_DID) { 1155 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1156 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1157 "0261 Cannot Register NameServer login\n"); 1158 } 1159 1160 /* 1161 ** In case the node reference counter does not go to zero, ensure that 1162 ** the stale state for the node is not processed. 1163 */ 1164 1165 ndlp->nlp_prev_state = ndlp->nlp_state; 1166 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1167 spin_lock_irq(shost->host_lock); 1168 ndlp->nlp_flag |= NLP_DEFER_RM; 1169 spin_unlock_irq(shost->host_lock); 1170 return NLP_STE_FREED_NODE; 1171} 1172 1173static uint32_t 1174lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1175 void *arg, uint32_t evt) 1176{ 1177 return ndlp->nlp_state; 1178} 1179 1180static uint32_t 1181lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1182 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1183{ 1184 struct lpfc_hba *phba; 1185 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1186 MAILBOX_t *mb = &pmb->u.mb; 1187 uint16_t rpi; 1188 1189 phba = vport->phba; 1190 /* Release the RPI */ 1191 if (!(phba->pport->load_flag & FC_UNLOADING) && 1192 !mb->mbxStatus) { 1193 rpi = pmb->u.mb.un.varWords[0]; 1194 lpfc_release_rpi(phba, vport, rpi); 1195 } 1196 return ndlp->nlp_state; 1197} 1198 1199static uint32_t 1200lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1201 void *arg, uint32_t evt) 1202{ 1203 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1204 1205 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1206 spin_lock_irq(shost->host_lock); 1207 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1208 spin_unlock_irq(shost->host_lock); 1209 return ndlp->nlp_state; 1210 } else { 1211 /* software abort outstanding PLOGI */ 1212 lpfc_els_abort(vport->phba, ndlp); 1213 1214 lpfc_drop_node(vport, ndlp); 1215 return NLP_STE_FREED_NODE; 1216 } 1217} 1218 1219static uint32_t 1220lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1221 struct lpfc_nodelist *ndlp, 1222 void *arg, 1223 uint32_t evt) 1224{ 1225 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1226 struct lpfc_hba *phba = vport->phba; 1227 1228 /* Don't do anything that will mess up processing of the 1229 * previous RSCN. 1230 */ 1231 if (vport->fc_flag & FC_RSCN_DEFERRED) 1232 return ndlp->nlp_state; 1233 1234 /* software abort outstanding PLOGI */ 1235 lpfc_els_abort(phba, ndlp); 1236 1237 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1238 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1239 spin_lock_irq(shost->host_lock); 1240 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1241 spin_unlock_irq(shost->host_lock); 1242 1243 return ndlp->nlp_state; 1244} 1245 1246static uint32_t 1247lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1248 void *arg, uint32_t evt) 1249{ 1250 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1251 struct lpfc_hba *phba = vport->phba; 1252 struct lpfc_iocbq *cmdiocb; 1253 1254 /* software abort outstanding ADISC */ 1255 lpfc_els_abort(phba, ndlp); 1256 1257 cmdiocb = (struct lpfc_iocbq *) arg; 1258 1259 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1260 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1261 spin_lock_irq(shost->host_lock); 1262 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1263 spin_unlock_irq(shost->host_lock); 1264 if (vport->num_disc_nodes) 1265 lpfc_more_adisc(vport); 1266 } 1267 return ndlp->nlp_state; 1268 } 1269 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1270 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1271 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1272 1273 return ndlp->nlp_state; 1274} 1275 1276static uint32_t 1277lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1278 void *arg, uint32_t evt) 1279{ 1280 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1281 1282 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1283 return ndlp->nlp_state; 1284} 1285 1286static uint32_t 1287lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1288 void *arg, uint32_t evt) 1289{ 1290 struct lpfc_hba *phba = vport->phba; 1291 struct lpfc_iocbq *cmdiocb; 1292 1293 cmdiocb = (struct lpfc_iocbq *) arg; 1294 1295 /* software abort outstanding ADISC */ 1296 lpfc_els_abort(phba, ndlp); 1297 1298 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1299 return ndlp->nlp_state; 1300} 1301 1302static uint32_t 1303lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1304 struct lpfc_nodelist *ndlp, 1305 void *arg, uint32_t evt) 1306{ 1307 struct lpfc_iocbq *cmdiocb; 1308 1309 cmdiocb = (struct lpfc_iocbq *) arg; 1310 1311 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1312 return ndlp->nlp_state; 1313} 1314 1315static uint32_t 1316lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1317 void *arg, uint32_t evt) 1318{ 1319 struct lpfc_iocbq *cmdiocb; 1320 1321 cmdiocb = (struct lpfc_iocbq *) arg; 1322 1323 /* Treat like rcv logo */ 1324 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1325 return ndlp->nlp_state; 1326} 1327 1328static uint32_t 1329lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1330 struct lpfc_nodelist *ndlp, 1331 void *arg, uint32_t evt) 1332{ 1333 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1334 struct lpfc_hba *phba = vport->phba; 1335 struct lpfc_iocbq *cmdiocb, *rspiocb; 1336 IOCB_t *irsp; 1337 ADISC *ap; 1338 int rc; 1339 1340 cmdiocb = (struct lpfc_iocbq *) arg; 1341 rspiocb = cmdiocb->context_un.rsp_iocb; 1342 1343 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1344 irsp = &rspiocb->iocb; 1345 1346 if ((irsp->ulpStatus) || 1347 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1348 /* 1 sec timeout */ 1349 mod_timer(&ndlp->nlp_delayfunc, 1350 jiffies + msecs_to_jiffies(1000)); 1351 spin_lock_irq(shost->host_lock); 1352 ndlp->nlp_flag |= NLP_DELAY_TMO; 1353 spin_unlock_irq(shost->host_lock); 1354 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1355 1356 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1357 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1358 1359 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1360 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1361 lpfc_unreg_rpi(vport, ndlp); 1362 return ndlp->nlp_state; 1363 } 1364 1365 if (phba->sli_rev == LPFC_SLI_REV4) { 1366 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1367 if (rc) { 1368 /* Stay in state and retry. */ 1369 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1370 return ndlp->nlp_state; 1371 } 1372 } 1373 1374 if (ndlp->nlp_type & NLP_FCP_TARGET) { 1375 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1376 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1377 } else { 1378 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1379 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1380 } 1381 1382 return ndlp->nlp_state; 1383} 1384 1385static uint32_t 1386lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1387 void *arg, uint32_t evt) 1388{ 1389 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1390 1391 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1392 spin_lock_irq(shost->host_lock); 1393 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1394 spin_unlock_irq(shost->host_lock); 1395 return ndlp->nlp_state; 1396 } else { 1397 /* software abort outstanding ADISC */ 1398 lpfc_els_abort(vport->phba, ndlp); 1399 1400 lpfc_drop_node(vport, ndlp); 1401 return NLP_STE_FREED_NODE; 1402 } 1403} 1404 1405static uint32_t 1406lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1407 struct lpfc_nodelist *ndlp, 1408 void *arg, 1409 uint32_t evt) 1410{ 1411 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1412 struct lpfc_hba *phba = vport->phba; 1413 1414 /* Don't do anything that will mess up processing of the 1415 * previous RSCN. 1416 */ 1417 if (vport->fc_flag & FC_RSCN_DEFERRED) 1418 return ndlp->nlp_state; 1419 1420 /* software abort outstanding ADISC */ 1421 lpfc_els_abort(phba, ndlp); 1422 1423 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1424 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1425 spin_lock_irq(shost->host_lock); 1426 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1427 spin_unlock_irq(shost->host_lock); 1428 lpfc_disc_set_adisc(vport, ndlp); 1429 return ndlp->nlp_state; 1430} 1431 1432static uint32_t 1433lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1434 struct lpfc_nodelist *ndlp, 1435 void *arg, 1436 uint32_t evt) 1437{ 1438 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1439 1440 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1441 return ndlp->nlp_state; 1442} 1443 1444static uint32_t 1445lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1446 struct lpfc_nodelist *ndlp, 1447 void *arg, 1448 uint32_t evt) 1449{ 1450 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1451 1452 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1453 return ndlp->nlp_state; 1454} 1455 1456static uint32_t 1457lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1458 struct lpfc_nodelist *ndlp, 1459 void *arg, 1460 uint32_t evt) 1461{ 1462 struct lpfc_hba *phba = vport->phba; 1463 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1464 LPFC_MBOXQ_t *mb; 1465 LPFC_MBOXQ_t *nextmb; 1466 struct lpfc_dmabuf *mp; 1467 1468 cmdiocb = (struct lpfc_iocbq *) arg; 1469 1470 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1471 if ((mb = phba->sli.mbox_active)) { 1472 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1473 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1474 lpfc_nlp_put(ndlp); 1475 mb->context2 = NULL; 1476 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1477 } 1478 } 1479 1480 spin_lock_irq(&phba->hbalock); 1481 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1482 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1483 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1484 mp = (struct lpfc_dmabuf *) (mb->context1); 1485 if (mp) { 1486 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1487 kfree(mp); 1488 } 1489 lpfc_nlp_put(ndlp); 1490 list_del(&mb->list); 1491 phba->sli.mboxq_cnt--; 1492 mempool_free(mb, phba->mbox_mem_pool); 1493 } 1494 } 1495 spin_unlock_irq(&phba->hbalock); 1496 1497 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1498 return ndlp->nlp_state; 1499} 1500 1501static uint32_t 1502lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1503 struct lpfc_nodelist *ndlp, 1504 void *arg, 1505 uint32_t evt) 1506{ 1507 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1508 1509 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1510 return ndlp->nlp_state; 1511} 1512 1513static uint32_t 1514lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1515 struct lpfc_nodelist *ndlp, 1516 void *arg, 1517 uint32_t evt) 1518{ 1519 struct lpfc_iocbq *cmdiocb; 1520 1521 cmdiocb = (struct lpfc_iocbq *) arg; 1522 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1523 return ndlp->nlp_state; 1524} 1525 1526static uint32_t 1527lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1528 struct lpfc_nodelist *ndlp, 1529 void *arg, 1530 uint32_t evt) 1531{ 1532 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1533 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1534 MAILBOX_t *mb = &pmb->u.mb; 1535 uint32_t did = mb->un.varWords[1]; 1536 1537 if (mb->mbxStatus) { 1538 /* RegLogin failed */ 1539 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1540 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1541 "x%x\n", 1542 did, mb->mbxStatus, vport->port_state, 1543 mb->un.varRegLogin.vpi, 1544 mb->un.varRegLogin.rpi); 1545 /* 1546 * If RegLogin failed due to lack of HBA resources do not 1547 * retry discovery. 1548 */ 1549 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1550 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1551 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1552 return ndlp->nlp_state; 1553 } 1554 1555 /* Put ndlp in npr state set plogi timer for 1 sec */ 1556 mod_timer(&ndlp->nlp_delayfunc, 1557 jiffies + msecs_to_jiffies(1000 * 1)); 1558 spin_lock_irq(shost->host_lock); 1559 ndlp->nlp_flag |= NLP_DELAY_TMO; 1560 spin_unlock_irq(shost->host_lock); 1561 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1562 1563 lpfc_issue_els_logo(vport, ndlp, 0); 1564 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1565 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1566 return ndlp->nlp_state; 1567 } 1568 1569 /* SLI4 ports have preallocated logical rpis. */ 1570 if (vport->phba->sli_rev < LPFC_SLI_REV4) 1571 ndlp->nlp_rpi = mb->un.varWords[0]; 1572 1573 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1574 1575 /* Only if we are not a fabric nport do we issue PRLI */ 1576 if (!(ndlp->nlp_type & NLP_FABRIC)) { 1577 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1578 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1579 lpfc_issue_els_prli(vport, ndlp, 0); 1580 } else { 1581 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1582 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1583 } 1584 return ndlp->nlp_state; 1585} 1586 1587static uint32_t 1588lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 1589 struct lpfc_nodelist *ndlp, 1590 void *arg, 1591 uint32_t evt) 1592{ 1593 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1594 1595 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1596 spin_lock_irq(shost->host_lock); 1597 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1598 spin_unlock_irq(shost->host_lock); 1599 return ndlp->nlp_state; 1600 } else { 1601 lpfc_drop_node(vport, ndlp); 1602 return NLP_STE_FREED_NODE; 1603 } 1604} 1605 1606static uint32_t 1607lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 1608 struct lpfc_nodelist *ndlp, 1609 void *arg, 1610 uint32_t evt) 1611{ 1612 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1613 1614 /* Don't do anything that will mess up processing of the 1615 * previous RSCN. 1616 */ 1617 if (vport->fc_flag & FC_RSCN_DEFERRED) 1618 return ndlp->nlp_state; 1619 1620 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1621 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1622 spin_lock_irq(shost->host_lock); 1623 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 1624 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1625 spin_unlock_irq(shost->host_lock); 1626 lpfc_disc_set_adisc(vport, ndlp); 1627 return ndlp->nlp_state; 1628} 1629 1630static uint32_t 1631lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1632 void *arg, uint32_t evt) 1633{ 1634 struct lpfc_iocbq *cmdiocb; 1635 1636 cmdiocb = (struct lpfc_iocbq *) arg; 1637 1638 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1639 return ndlp->nlp_state; 1640} 1641 1642static uint32_t 1643lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1644 void *arg, uint32_t evt) 1645{ 1646 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1647 1648 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1649 return ndlp->nlp_state; 1650} 1651 1652static uint32_t 1653lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1654 void *arg, uint32_t evt) 1655{ 1656 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1657 1658 /* Software abort outstanding PRLI before sending acc */ 1659 lpfc_els_abort(vport->phba, ndlp); 1660 1661 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1662 return ndlp->nlp_state; 1663} 1664 1665static uint32_t 1666lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1667 void *arg, uint32_t evt) 1668{ 1669 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1670 1671 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1672 return ndlp->nlp_state; 1673} 1674 1675/* This routine is envoked when we rcv a PRLO request from a nport 1676 * we are logged into. We should send back a PRLO rsp setting the 1677 * appropriate bits. 1678 * NEXT STATE = PRLI_ISSUE 1679 */ 1680static uint32_t 1681lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1682 void *arg, uint32_t evt) 1683{ 1684 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1685 1686 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1687 return ndlp->nlp_state; 1688} 1689 1690static uint32_t 1691lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1692 void *arg, uint32_t evt) 1693{ 1694 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1695 struct lpfc_iocbq *cmdiocb, *rspiocb; 1696 struct lpfc_hba *phba = vport->phba; 1697 IOCB_t *irsp; 1698 PRLI *npr; 1699 1700 cmdiocb = (struct lpfc_iocbq *) arg; 1701 rspiocb = cmdiocb->context_un.rsp_iocb; 1702 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1703 1704 irsp = &rspiocb->iocb; 1705 if (irsp->ulpStatus) { 1706 if ((vport->port_type == LPFC_NPIV_PORT) && 1707 vport->cfg_restrict_login) { 1708 goto out; 1709 } 1710 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1711 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1712 return ndlp->nlp_state; 1713 } 1714 1715 /* Check out PRLI rsp */ 1716 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 1717 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 1718 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 1719 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) && 1720 (npr->prliType == PRLI_FCP_TYPE)) { 1721 if (npr->initiatorFunc) 1722 ndlp->nlp_type |= NLP_FCP_INITIATOR; 1723 if (npr->targetFunc) { 1724 ndlp->nlp_type |= NLP_FCP_TARGET; 1725 if (npr->writeXferRdyDis) 1726 ndlp->nlp_flag |= NLP_FIRSTBURST; 1727 } 1728 if (npr->Retry) 1729 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1730 } 1731 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 1732 (vport->port_type == LPFC_NPIV_PORT) && 1733 vport->cfg_restrict_login) { 1734out: 1735 spin_lock_irq(shost->host_lock); 1736 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 1737 spin_unlock_irq(shost->host_lock); 1738 lpfc_issue_els_logo(vport, ndlp, 0); 1739 1740 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1741 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1742 return ndlp->nlp_state; 1743 } 1744 1745 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1746 if (ndlp->nlp_type & NLP_FCP_TARGET) 1747 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1748 else 1749 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1750 return ndlp->nlp_state; 1751} 1752 1753/*! lpfc_device_rm_prli_issue 1754 * 1755 * \pre 1756 * \post 1757 * \param phba 1758 * \param ndlp 1759 * \param arg 1760 * \param evt 1761 * \return uint32_t 1762 * 1763 * \b Description: 1764 * This routine is envoked when we a request to remove a nport we are in the 1765 * process of PRLIing. We should software abort outstanding prli, unreg 1766 * login, send a logout. We will change node state to UNUSED_NODE, put it 1767 * on plogi list so it can be freed when LOGO completes. 1768 * 1769 */ 1770 1771static uint32_t 1772lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1773 void *arg, uint32_t evt) 1774{ 1775 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1776 1777 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1778 spin_lock_irq(shost->host_lock); 1779 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1780 spin_unlock_irq(shost->host_lock); 1781 return ndlp->nlp_state; 1782 } else { 1783 /* software abort outstanding PLOGI */ 1784 lpfc_els_abort(vport->phba, ndlp); 1785 1786 lpfc_drop_node(vport, ndlp); 1787 return NLP_STE_FREED_NODE; 1788 } 1789} 1790 1791 1792/*! lpfc_device_recov_prli_issue 1793 * 1794 * \pre 1795 * \post 1796 * \param phba 1797 * \param ndlp 1798 * \param arg 1799 * \param evt 1800 * \return uint32_t 1801 * 1802 * \b Description: 1803 * The routine is envoked when the state of a device is unknown, like 1804 * during a link down. We should remove the nodelist entry from the 1805 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 1806 * outstanding PRLI command, then free the node entry. 1807 */ 1808static uint32_t 1809lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 1810 struct lpfc_nodelist *ndlp, 1811 void *arg, 1812 uint32_t evt) 1813{ 1814 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1815 struct lpfc_hba *phba = vport->phba; 1816 1817 /* Don't do anything that will mess up processing of the 1818 * previous RSCN. 1819 */ 1820 if (vport->fc_flag & FC_RSCN_DEFERRED) 1821 return ndlp->nlp_state; 1822 1823 /* software abort outstanding PRLI */ 1824 lpfc_els_abort(phba, ndlp); 1825 1826 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1827 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1828 spin_lock_irq(shost->host_lock); 1829 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1830 spin_unlock_irq(shost->host_lock); 1831 lpfc_disc_set_adisc(vport, ndlp); 1832 return ndlp->nlp_state; 1833} 1834 1835static uint32_t 1836lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1837 void *arg, uint32_t evt) 1838{ 1839 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1840 struct ls_rjt stat; 1841 1842 memset(&stat, 0, sizeof(struct ls_rjt)); 1843 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1844 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1845 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1846 return ndlp->nlp_state; 1847} 1848 1849static uint32_t 1850lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1851 void *arg, uint32_t evt) 1852{ 1853 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1854 struct ls_rjt stat; 1855 1856 memset(&stat, 0, sizeof(struct ls_rjt)); 1857 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1858 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1859 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1860 return ndlp->nlp_state; 1861} 1862 1863static uint32_t 1864lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1865 void *arg, uint32_t evt) 1866{ 1867 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1868 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1869 1870 spin_lock_irq(shost->host_lock); 1871 ndlp->nlp_flag &= NLP_LOGO_ACC; 1872 spin_unlock_irq(shost->host_lock); 1873 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1874 return ndlp->nlp_state; 1875} 1876 1877static uint32_t 1878lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1879 void *arg, uint32_t evt) 1880{ 1881 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1882 struct ls_rjt stat; 1883 1884 memset(&stat, 0, sizeof(struct ls_rjt)); 1885 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1886 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1887 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1888 return ndlp->nlp_state; 1889} 1890 1891static uint32_t 1892lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1893 void *arg, uint32_t evt) 1894{ 1895 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1896 struct ls_rjt stat; 1897 1898 memset(&stat, 0, sizeof(struct ls_rjt)); 1899 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1900 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1901 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1902 return ndlp->nlp_state; 1903} 1904 1905static uint32_t 1906lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1907 void *arg, uint32_t evt) 1908{ 1909 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1910 1911 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 1912 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1913 spin_lock_irq(shost->host_lock); 1914 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1915 spin_unlock_irq(shost->host_lock); 1916 lpfc_disc_set_adisc(vport, ndlp); 1917 return ndlp->nlp_state; 1918} 1919 1920static uint32_t 1921lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1922 void *arg, uint32_t evt) 1923{ 1924 /* 1925 * Take no action. If a LOGO is outstanding, then possibly DevLoss has 1926 * timed out and is calling for Device Remove. In this case, the LOGO 1927 * must be allowed to complete in state LOGO_ISSUE so that the rpi 1928 * and other NLP flags are correctly cleaned up. 1929 */ 1930 return ndlp->nlp_state; 1931} 1932 1933static uint32_t 1934lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 1935 struct lpfc_nodelist *ndlp, 1936 void *arg, uint32_t evt) 1937{ 1938 /* 1939 * Device Recovery events have no meaning for a node with a LOGO 1940 * outstanding. The LOGO has to complete first and handle the 1941 * node from that point. 1942 */ 1943 return ndlp->nlp_state; 1944} 1945 1946static uint32_t 1947lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1948 void *arg, uint32_t evt) 1949{ 1950 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1951 1952 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1953 return ndlp->nlp_state; 1954} 1955 1956static uint32_t 1957lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1958 void *arg, uint32_t evt) 1959{ 1960 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1961 1962 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1963 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1964 return ndlp->nlp_state; 1965} 1966 1967static uint32_t 1968lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1969 void *arg, uint32_t evt) 1970{ 1971 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1972 1973 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1974 return ndlp->nlp_state; 1975} 1976 1977static uint32_t 1978lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1979 void *arg, uint32_t evt) 1980{ 1981 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1982 1983 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1984 return ndlp->nlp_state; 1985} 1986 1987static uint32_t 1988lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1989 void *arg, uint32_t evt) 1990{ 1991 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1992 1993 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1994 return ndlp->nlp_state; 1995} 1996 1997static uint32_t 1998lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 1999 struct lpfc_nodelist *ndlp, 2000 void *arg, 2001 uint32_t evt) 2002{ 2003 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2004 2005 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2006 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2007 spin_lock_irq(shost->host_lock); 2008 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2009 spin_unlock_irq(shost->host_lock); 2010 lpfc_disc_set_adisc(vport, ndlp); 2011 2012 return ndlp->nlp_state; 2013} 2014 2015static uint32_t 2016lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2017 void *arg, uint32_t evt) 2018{ 2019 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2020 2021 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2022 return ndlp->nlp_state; 2023} 2024 2025static uint32_t 2026lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2027 void *arg, uint32_t evt) 2028{ 2029 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2030 2031 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2032 return ndlp->nlp_state; 2033} 2034 2035static uint32_t 2036lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2037 void *arg, uint32_t evt) 2038{ 2039 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2040 2041 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2042 return ndlp->nlp_state; 2043} 2044 2045static uint32_t 2046lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2047 struct lpfc_nodelist *ndlp, 2048 void *arg, uint32_t evt) 2049{ 2050 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2051 2052 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2053 return ndlp->nlp_state; 2054} 2055 2056static uint32_t 2057lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2058 void *arg, uint32_t evt) 2059{ 2060 struct lpfc_hba *phba = vport->phba; 2061 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2062 2063 /* flush the target */ 2064 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 2065 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2066 2067 /* Treat like rcv logo */ 2068 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2069 return ndlp->nlp_state; 2070} 2071 2072static uint32_t 2073lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2074 struct lpfc_nodelist *ndlp, 2075 void *arg, 2076 uint32_t evt) 2077{ 2078 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2079 2080 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2081 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2082 spin_lock_irq(shost->host_lock); 2083 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2084 spin_unlock_irq(shost->host_lock); 2085 lpfc_disc_set_adisc(vport, ndlp); 2086 return ndlp->nlp_state; 2087} 2088 2089static uint32_t 2090lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2091 void *arg, uint32_t evt) 2092{ 2093 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2094 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2095 2096 /* Ignore PLOGI if we have an outstanding LOGO */ 2097 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2098 return ndlp->nlp_state; 2099 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2100 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2101 spin_lock_irq(shost->host_lock); 2102 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2103 spin_unlock_irq(shost->host_lock); 2104 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2105 /* send PLOGI immediately, move to PLOGI issue state */ 2106 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2107 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2108 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2109 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2110 } 2111 } 2112 return ndlp->nlp_state; 2113} 2114 2115static uint32_t 2116lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2117 void *arg, uint32_t evt) 2118{ 2119 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2120 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2121 struct ls_rjt stat; 2122 2123 memset(&stat, 0, sizeof (struct ls_rjt)); 2124 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2125 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2126 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2127 2128 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2129 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2130 spin_lock_irq(shost->host_lock); 2131 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2132 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2133 spin_unlock_irq(shost->host_lock); 2134 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2135 lpfc_issue_els_adisc(vport, ndlp, 0); 2136 } else { 2137 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2138 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2139 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2140 } 2141 } 2142 return ndlp->nlp_state; 2143} 2144 2145static uint32_t 2146lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2147 void *arg, uint32_t evt) 2148{ 2149 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2150 2151 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2152 return ndlp->nlp_state; 2153} 2154 2155static uint32_t 2156lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2157 void *arg, uint32_t evt) 2158{ 2159 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2160 2161 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2162 /* 2163 * Do not start discovery if discovery is about to start 2164 * or discovery in progress for this node. Starting discovery 2165 * here will affect the counting of discovery threads. 2166 */ 2167 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2168 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2169 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2170 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2171 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2172 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2173 lpfc_issue_els_adisc(vport, ndlp, 0); 2174 } else { 2175 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2176 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2177 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2178 } 2179 } 2180 return ndlp->nlp_state; 2181} 2182 2183static uint32_t 2184lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2185 void *arg, uint32_t evt) 2186{ 2187 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2188 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2189 2190 spin_lock_irq(shost->host_lock); 2191 ndlp->nlp_flag |= NLP_LOGO_ACC; 2192 spin_unlock_irq(shost->host_lock); 2193 2194 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2195 2196 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2197 mod_timer(&ndlp->nlp_delayfunc, 2198 jiffies + msecs_to_jiffies(1000 * 1)); 2199 spin_lock_irq(shost->host_lock); 2200 ndlp->nlp_flag |= NLP_DELAY_TMO; 2201 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2202 spin_unlock_irq(shost->host_lock); 2203 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2204 } else { 2205 spin_lock_irq(shost->host_lock); 2206 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2207 spin_unlock_irq(shost->host_lock); 2208 } 2209 return ndlp->nlp_state; 2210} 2211 2212static uint32_t 2213lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2214 void *arg, uint32_t evt) 2215{ 2216 struct lpfc_iocbq *cmdiocb, *rspiocb; 2217 IOCB_t *irsp; 2218 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2219 2220 cmdiocb = (struct lpfc_iocbq *) arg; 2221 rspiocb = cmdiocb->context_un.rsp_iocb; 2222 2223 irsp = &rspiocb->iocb; 2224 if (irsp->ulpStatus) { 2225 spin_lock_irq(shost->host_lock); 2226 ndlp->nlp_flag |= NLP_DEFER_RM; 2227 spin_unlock_irq(shost->host_lock); 2228 return NLP_STE_FREED_NODE; 2229 } 2230 return ndlp->nlp_state; 2231} 2232 2233static uint32_t 2234lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2235 void *arg, uint32_t evt) 2236{ 2237 struct lpfc_iocbq *cmdiocb, *rspiocb; 2238 IOCB_t *irsp; 2239 2240 cmdiocb = (struct lpfc_iocbq *) arg; 2241 rspiocb = cmdiocb->context_un.rsp_iocb; 2242 2243 irsp = &rspiocb->iocb; 2244 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2245 lpfc_drop_node(vport, ndlp); 2246 return NLP_STE_FREED_NODE; 2247 } 2248 return ndlp->nlp_state; 2249} 2250 2251static uint32_t 2252lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2253 void *arg, uint32_t evt) 2254{ 2255 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2256 2257 /* For the fabric port just clear the fc flags. */ 2258 if (ndlp->nlp_DID == Fabric_DID) { 2259 spin_lock_irq(shost->host_lock); 2260 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2261 spin_unlock_irq(shost->host_lock); 2262 } 2263 lpfc_unreg_rpi(vport, ndlp); 2264 return ndlp->nlp_state; 2265} 2266 2267static uint32_t 2268lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2269 void *arg, uint32_t evt) 2270{ 2271 struct lpfc_iocbq *cmdiocb, *rspiocb; 2272 IOCB_t *irsp; 2273 2274 cmdiocb = (struct lpfc_iocbq *) arg; 2275 rspiocb = cmdiocb->context_un.rsp_iocb; 2276 2277 irsp = &rspiocb->iocb; 2278 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2279 lpfc_drop_node(vport, ndlp); 2280 return NLP_STE_FREED_NODE; 2281 } 2282 return ndlp->nlp_state; 2283} 2284 2285static uint32_t 2286lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2287 struct lpfc_nodelist *ndlp, 2288 void *arg, uint32_t evt) 2289{ 2290 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2291 MAILBOX_t *mb = &pmb->u.mb; 2292 2293 if (!mb->mbxStatus) { 2294 /* SLI4 ports have preallocated logical rpis. */ 2295 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2296 ndlp->nlp_rpi = mb->un.varWords[0]; 2297 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2298 } else { 2299 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2300 lpfc_drop_node(vport, ndlp); 2301 return NLP_STE_FREED_NODE; 2302 } 2303 } 2304 return ndlp->nlp_state; 2305} 2306 2307static uint32_t 2308lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2309 void *arg, uint32_t evt) 2310{ 2311 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2312 2313 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2314 spin_lock_irq(shost->host_lock); 2315 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2316 spin_unlock_irq(shost->host_lock); 2317 return ndlp->nlp_state; 2318 } 2319 lpfc_drop_node(vport, ndlp); 2320 return NLP_STE_FREED_NODE; 2321} 2322 2323static uint32_t 2324lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2325 void *arg, uint32_t evt) 2326{ 2327 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2328 2329 /* Don't do anything that will mess up processing of the 2330 * previous RSCN. 2331 */ 2332 if (vport->fc_flag & FC_RSCN_DEFERRED) 2333 return ndlp->nlp_state; 2334 2335 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2336 spin_lock_irq(shost->host_lock); 2337 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2338 spin_unlock_irq(shost->host_lock); 2339 return ndlp->nlp_state; 2340} 2341 2342 2343/* This next section defines the NPort Discovery State Machine */ 2344 2345/* There are 4 different double linked lists nodelist entries can reside on. 2346 * The plogi list and adisc list are used when Link Up discovery or RSCN 2347 * processing is needed. Each list holds the nodes that we will send PLOGI 2348 * or ADISC on. These lists will keep track of what nodes will be effected 2349 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2350 * The unmapped_list will contain all nodes that we have successfully logged 2351 * into at the Fibre Channel level. The mapped_list will contain all nodes 2352 * that are mapped FCP targets. 2353 */ 2354/* 2355 * The bind list is a list of undiscovered (potentially non-existent) nodes 2356 * that we have saved binding information on. This information is used when 2357 * nodes transition from the unmapped to the mapped list. 2358 */ 2359/* For UNUSED_NODE state, the node has just been allocated . 2360 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2361 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2362 * and put on the unmapped list. For ADISC processing, the node is taken off 2363 * the ADISC list and placed on either the mapped or unmapped list (depending 2364 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2365 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2366 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2367 * node, the node is taken off the unmapped list. The binding list is checked 2368 * for a valid binding, or a binding is automatically assigned. If binding 2369 * assignment is unsuccessful, the node is left on the unmapped list. If 2370 * binding assignment is successful, the associated binding list entry (if 2371 * any) is removed, and the node is placed on the mapped list. 2372 */ 2373/* 2374 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2375 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2376 * expire, all effected nodes will receive a DEVICE_RM event. 2377 */ 2378/* 2379 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2380 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2381 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2382 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2383 * we will first process the ADISC list. 32 entries are processed initially and 2384 * ADISC is initited for each one. Completions / Events for each node are 2385 * funnelled thru the state machine. As each node finishes ADISC processing, it 2386 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2387 * waiting, and the ADISC list count is identically 0, then we are done. For 2388 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2389 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2390 * list. 32 entries are processed initially and PLOGI is initited for each one. 2391 * Completions / Events for each node are funnelled thru the state machine. As 2392 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2393 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2394 * indentically 0, then we are done. We have now completed discovery / RSCN 2395 * handling. Upon completion, ALL nodes should be on either the mapped or 2396 * unmapped lists. 2397 */ 2398 2399static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2400 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2401 /* Action routine Event Current State */ 2402 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2403 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2404 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2405 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2406 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2407 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2408 lpfc_disc_illegal, /* CMPL_PLOGI */ 2409 lpfc_disc_illegal, /* CMPL_PRLI */ 2410 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2411 lpfc_disc_illegal, /* CMPL_ADISC */ 2412 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2413 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2414 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2415 2416 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2417 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2418 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2419 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2420 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2421 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2422 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2423 lpfc_disc_illegal, /* CMPL_PRLI */ 2424 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2425 lpfc_disc_illegal, /* CMPL_ADISC */ 2426 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2427 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2428 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2429 2430 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2431 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2432 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2433 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2434 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2435 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2436 lpfc_disc_illegal, /* CMPL_PLOGI */ 2437 lpfc_disc_illegal, /* CMPL_PRLI */ 2438 lpfc_disc_illegal, /* CMPL_LOGO */ 2439 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2440 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2441 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2442 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2443 2444 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2445 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2446 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2447 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2448 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2449 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2450 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2451 lpfc_disc_illegal, /* CMPL_PRLI */ 2452 lpfc_disc_illegal, /* CMPL_LOGO */ 2453 lpfc_disc_illegal, /* CMPL_ADISC */ 2454 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2455 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2456 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2457 2458 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 2459 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 2460 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 2461 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 2462 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 2463 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 2464 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2465 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 2466 lpfc_disc_illegal, /* CMPL_LOGO */ 2467 lpfc_disc_illegal, /* CMPL_ADISC */ 2468 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2469 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 2470 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 2471 2472 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 2473 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 2474 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 2475 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 2476 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 2477 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 2478 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2479 lpfc_disc_illegal, /* CMPL_PRLI */ 2480 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 2481 lpfc_disc_illegal, /* CMPL_ADISC */ 2482 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2483 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 2484 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 2485 2486 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 2487 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 2488 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 2489 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 2490 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 2491 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 2492 lpfc_disc_illegal, /* CMPL_PLOGI */ 2493 lpfc_disc_illegal, /* CMPL_PRLI */ 2494 lpfc_disc_illegal, /* CMPL_LOGO */ 2495 lpfc_disc_illegal, /* CMPL_ADISC */ 2496 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2497 lpfc_disc_illegal, /* DEVICE_RM */ 2498 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 2499 2500 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 2501 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 2502 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 2503 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 2504 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 2505 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 2506 lpfc_disc_illegal, /* CMPL_PLOGI */ 2507 lpfc_disc_illegal, /* CMPL_PRLI */ 2508 lpfc_disc_illegal, /* CMPL_LOGO */ 2509 lpfc_disc_illegal, /* CMPL_ADISC */ 2510 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2511 lpfc_disc_illegal, /* DEVICE_RM */ 2512 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 2513 2514 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 2515 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 2516 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 2517 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 2518 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 2519 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 2520 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 2521 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 2522 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 2523 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 2524 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 2525 lpfc_device_rm_npr_node, /* DEVICE_RM */ 2526 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 2527}; 2528 2529int 2530lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2531 void *arg, uint32_t evt) 2532{ 2533 uint32_t cur_state, rc; 2534 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 2535 uint32_t); 2536 uint32_t got_ndlp = 0; 2537 2538 if (lpfc_nlp_get(ndlp)) 2539 got_ndlp = 1; 2540 2541 cur_state = ndlp->nlp_state; 2542 2543 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 2544 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2545 "0211 DSM in event x%x on NPort x%x in " 2546 "state %d Data: x%x\n", 2547 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag); 2548 2549 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2550 "DSM in: evt:%d ste:%d did:x%x", 2551 evt, cur_state, ndlp->nlp_DID); 2552 2553 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 2554 rc = (func) (vport, ndlp, arg, evt); 2555 2556 /* DSM out state <rc> on NPort <nlp_DID> */ 2557 if (got_ndlp) { 2558 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2559 "0212 DSM out state %d on NPort x%x Data: x%x\n", 2560 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2561 2562 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2563 "DSM out: ste:%d did:x%x flg:x%x", 2564 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2565 /* Decrement the ndlp reference count held for this function */ 2566 lpfc_nlp_put(ndlp); 2567 } else { 2568 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2569 "0213 DSM out state %d on NPort free\n", rc); 2570 2571 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2572 "DSM out: ste:%d did:x%x flg:x%x", 2573 rc, 0, 0); 2574 } 2575 2576 return rc; 2577} 2578