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