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 if (!prsp) 1035 goto out; 1036 1037 lp = (uint32_t *) prsp->virt; 1038 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1039 1040 /* Some switches have FDMI servers returning 0 for WWN */ 1041 if ((ndlp->nlp_DID != FDMI_DID) && 1042 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1043 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1044 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1045 "0142 PLOGI RSP: Invalid WWN.\n"); 1046 goto out; 1047 } 1048 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1049 goto out; 1050 /* PLOGI chkparm OK */ 1051 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1052 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1053 ndlp->nlp_DID, ndlp->nlp_state, 1054 ndlp->nlp_flag, ndlp->nlp_rpi); 1055 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1056 ndlp->nlp_fcp_info |= CLASS2; 1057 else 1058 ndlp->nlp_fcp_info |= CLASS3; 1059 1060 ndlp->nlp_class_sup = 0; 1061 if (sp->cls1.classValid) 1062 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1063 if (sp->cls2.classValid) 1064 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1065 if (sp->cls3.classValid) 1066 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1067 if (sp->cls4.classValid) 1068 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1069 ndlp->nlp_maxframe = 1070 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1071 1072 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1073 if (!mbox) { 1074 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1075 "0133 PLOGI: no memory for reg_login " 1076 "Data: x%x x%x x%x x%x\n", 1077 ndlp->nlp_DID, ndlp->nlp_state, 1078 ndlp->nlp_flag, ndlp->nlp_rpi); 1079 goto out; 1080 } 1081 1082 lpfc_unreg_rpi(vport, ndlp); 1083 1084 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1085 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1086 switch (ndlp->nlp_DID) { 1087 case NameServer_DID: 1088 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1089 break; 1090 case FDMI_DID: 1091 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1092 break; 1093 default: 1094 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1095 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1096 } 1097 mbox->context2 = lpfc_nlp_get(ndlp); 1098 mbox->vport = vport; 1099 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1100 != MBX_NOT_FINISHED) { 1101 lpfc_nlp_set_state(vport, ndlp, 1102 NLP_STE_REG_LOGIN_ISSUE); 1103 return ndlp->nlp_state; 1104 } 1105 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1106 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1107 /* decrement node reference count to the failed mbox 1108 * command 1109 */ 1110 lpfc_nlp_put(ndlp); 1111 mp = (struct lpfc_dmabuf *) mbox->context1; 1112 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1113 kfree(mp); 1114 mempool_free(mbox, phba->mbox_mem_pool); 1115 1116 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1117 "0134 PLOGI: cannot issue reg_login " 1118 "Data: x%x x%x x%x x%x\n", 1119 ndlp->nlp_DID, ndlp->nlp_state, 1120 ndlp->nlp_flag, ndlp->nlp_rpi); 1121 } else { 1122 mempool_free(mbox, phba->mbox_mem_pool); 1123 1124 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1125 "0135 PLOGI: cannot format reg_login " 1126 "Data: x%x x%x x%x x%x\n", 1127 ndlp->nlp_DID, ndlp->nlp_state, 1128 ndlp->nlp_flag, ndlp->nlp_rpi); 1129 } 1130 1131 1132 out: 1133 if (ndlp->nlp_DID == NameServer_DID) { 1134 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1135 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1136 "0261 Cannot Register NameServer login\n"); 1137 } 1138 1139 /* 1140 ** In case the node reference counter does not go to zero, ensure that 1141 ** the stale state for the node is not processed. 1142 */ 1143 1144 ndlp->nlp_prev_state = ndlp->nlp_state; 1145 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1146 spin_lock_irq(shost->host_lock); 1147 ndlp->nlp_flag |= NLP_DEFER_RM; 1148 spin_unlock_irq(shost->host_lock); 1149 return NLP_STE_FREED_NODE; 1150 } 1151 1152 static uint32_t 1153 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1154 void *arg, uint32_t evt) 1155 { 1156 return ndlp->nlp_state; 1157 } 1158 1159 static uint32_t 1160 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1161 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1162 { 1163 struct lpfc_hba *phba; 1164 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1165 MAILBOX_t *mb = &pmb->u.mb; 1166 uint16_t rpi; 1167 1168 phba = vport->phba; 1169 /* Release the RPI */ 1170 if (!(phba->pport->load_flag & FC_UNLOADING) && 1171 !mb->mbxStatus) { 1172 rpi = pmb->u.mb.un.varWords[0]; 1173 lpfc_release_rpi(phba, vport, rpi); 1174 } 1175 return ndlp->nlp_state; 1176 } 1177 1178 static uint32_t 1179 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1180 void *arg, uint32_t evt) 1181 { 1182 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1183 1184 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1185 spin_lock_irq(shost->host_lock); 1186 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1187 spin_unlock_irq(shost->host_lock); 1188 return ndlp->nlp_state; 1189 } else { 1190 /* software abort outstanding PLOGI */ 1191 lpfc_els_abort(vport->phba, ndlp); 1192 1193 lpfc_drop_node(vport, ndlp); 1194 return NLP_STE_FREED_NODE; 1195 } 1196 } 1197 1198 static uint32_t 1199 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1200 struct lpfc_nodelist *ndlp, 1201 void *arg, 1202 uint32_t evt) 1203 { 1204 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1205 struct lpfc_hba *phba = vport->phba; 1206 1207 /* Don't do anything that will mess up processing of the 1208 * previous RSCN. 1209 */ 1210 if (vport->fc_flag & FC_RSCN_DEFERRED) 1211 return ndlp->nlp_state; 1212 1213 /* software abort outstanding PLOGI */ 1214 lpfc_els_abort(phba, ndlp); 1215 1216 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1217 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1218 spin_lock_irq(shost->host_lock); 1219 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1220 spin_unlock_irq(shost->host_lock); 1221 1222 return ndlp->nlp_state; 1223 } 1224 1225 static uint32_t 1226 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1227 void *arg, uint32_t evt) 1228 { 1229 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1230 struct lpfc_hba *phba = vport->phba; 1231 struct lpfc_iocbq *cmdiocb; 1232 1233 /* software abort outstanding ADISC */ 1234 lpfc_els_abort(phba, ndlp); 1235 1236 cmdiocb = (struct lpfc_iocbq *) arg; 1237 1238 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1239 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1240 spin_lock_irq(shost->host_lock); 1241 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1242 spin_unlock_irq(shost->host_lock); 1243 if (vport->num_disc_nodes) 1244 lpfc_more_adisc(vport); 1245 } 1246 return ndlp->nlp_state; 1247 } 1248 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1249 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1250 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1251 1252 return ndlp->nlp_state; 1253 } 1254 1255 static uint32_t 1256 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1257 void *arg, uint32_t evt) 1258 { 1259 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1260 1261 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1262 return ndlp->nlp_state; 1263 } 1264 1265 static uint32_t 1266 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1267 void *arg, uint32_t evt) 1268 { 1269 struct lpfc_hba *phba = vport->phba; 1270 struct lpfc_iocbq *cmdiocb; 1271 1272 cmdiocb = (struct lpfc_iocbq *) arg; 1273 1274 /* software abort outstanding ADISC */ 1275 lpfc_els_abort(phba, ndlp); 1276 1277 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1278 return ndlp->nlp_state; 1279 } 1280 1281 static uint32_t 1282 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1283 struct lpfc_nodelist *ndlp, 1284 void *arg, uint32_t evt) 1285 { 1286 struct lpfc_iocbq *cmdiocb; 1287 1288 cmdiocb = (struct lpfc_iocbq *) arg; 1289 1290 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1291 return ndlp->nlp_state; 1292 } 1293 1294 static uint32_t 1295 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1296 void *arg, uint32_t evt) 1297 { 1298 struct lpfc_iocbq *cmdiocb; 1299 1300 cmdiocb = (struct lpfc_iocbq *) arg; 1301 1302 /* Treat like rcv logo */ 1303 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1304 return ndlp->nlp_state; 1305 } 1306 1307 static uint32_t 1308 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1309 struct lpfc_nodelist *ndlp, 1310 void *arg, uint32_t evt) 1311 { 1312 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1313 struct lpfc_hba *phba = vport->phba; 1314 struct lpfc_iocbq *cmdiocb, *rspiocb; 1315 IOCB_t *irsp; 1316 ADISC *ap; 1317 int rc; 1318 1319 cmdiocb = (struct lpfc_iocbq *) arg; 1320 rspiocb = cmdiocb->context_un.rsp_iocb; 1321 1322 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1323 irsp = &rspiocb->iocb; 1324 1325 if ((irsp->ulpStatus) || 1326 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1327 /* 1 sec timeout */ 1328 mod_timer(&ndlp->nlp_delayfunc, 1329 jiffies + msecs_to_jiffies(1000)); 1330 spin_lock_irq(shost->host_lock); 1331 ndlp->nlp_flag |= NLP_DELAY_TMO; 1332 spin_unlock_irq(shost->host_lock); 1333 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1334 1335 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1336 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1337 1338 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1339 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1340 lpfc_unreg_rpi(vport, ndlp); 1341 return ndlp->nlp_state; 1342 } 1343 1344 if (phba->sli_rev == LPFC_SLI_REV4) { 1345 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1346 if (rc) { 1347 /* Stay in state and retry. */ 1348 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1349 return ndlp->nlp_state; 1350 } 1351 } 1352 1353 if (ndlp->nlp_type & NLP_FCP_TARGET) { 1354 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1355 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1356 } else { 1357 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1358 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1359 } 1360 1361 return ndlp->nlp_state; 1362 } 1363 1364 static uint32_t 1365 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1366 void *arg, uint32_t evt) 1367 { 1368 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1369 1370 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1371 spin_lock_irq(shost->host_lock); 1372 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1373 spin_unlock_irq(shost->host_lock); 1374 return ndlp->nlp_state; 1375 } else { 1376 /* software abort outstanding ADISC */ 1377 lpfc_els_abort(vport->phba, ndlp); 1378 1379 lpfc_drop_node(vport, ndlp); 1380 return NLP_STE_FREED_NODE; 1381 } 1382 } 1383 1384 static uint32_t 1385 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1386 struct lpfc_nodelist *ndlp, 1387 void *arg, 1388 uint32_t evt) 1389 { 1390 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1391 struct lpfc_hba *phba = vport->phba; 1392 1393 /* Don't do anything that will mess up processing of the 1394 * previous RSCN. 1395 */ 1396 if (vport->fc_flag & FC_RSCN_DEFERRED) 1397 return ndlp->nlp_state; 1398 1399 /* software abort outstanding ADISC */ 1400 lpfc_els_abort(phba, ndlp); 1401 1402 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1403 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1404 spin_lock_irq(shost->host_lock); 1405 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1406 spin_unlock_irq(shost->host_lock); 1407 lpfc_disc_set_adisc(vport, ndlp); 1408 return ndlp->nlp_state; 1409 } 1410 1411 static uint32_t 1412 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1413 struct lpfc_nodelist *ndlp, 1414 void *arg, 1415 uint32_t evt) 1416 { 1417 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1418 1419 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1420 return ndlp->nlp_state; 1421 } 1422 1423 static uint32_t 1424 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1425 struct lpfc_nodelist *ndlp, 1426 void *arg, 1427 uint32_t evt) 1428 { 1429 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1430 1431 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1432 return ndlp->nlp_state; 1433 } 1434 1435 static uint32_t 1436 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1437 struct lpfc_nodelist *ndlp, 1438 void *arg, 1439 uint32_t evt) 1440 { 1441 struct lpfc_hba *phba = vport->phba; 1442 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1443 LPFC_MBOXQ_t *mb; 1444 LPFC_MBOXQ_t *nextmb; 1445 struct lpfc_dmabuf *mp; 1446 1447 cmdiocb = (struct lpfc_iocbq *) arg; 1448 1449 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1450 if ((mb = phba->sli.mbox_active)) { 1451 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1452 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1453 lpfc_nlp_put(ndlp); 1454 mb->context2 = NULL; 1455 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1456 } 1457 } 1458 1459 spin_lock_irq(&phba->hbalock); 1460 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1461 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1462 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1463 mp = (struct lpfc_dmabuf *) (mb->context1); 1464 if (mp) { 1465 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1466 kfree(mp); 1467 } 1468 lpfc_nlp_put(ndlp); 1469 list_del(&mb->list); 1470 phba->sli.mboxq_cnt--; 1471 mempool_free(mb, phba->mbox_mem_pool); 1472 } 1473 } 1474 spin_unlock_irq(&phba->hbalock); 1475 1476 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1477 return ndlp->nlp_state; 1478 } 1479 1480 static uint32_t 1481 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1482 struct lpfc_nodelist *ndlp, 1483 void *arg, 1484 uint32_t evt) 1485 { 1486 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1487 1488 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1489 return ndlp->nlp_state; 1490 } 1491 1492 static uint32_t 1493 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1494 struct lpfc_nodelist *ndlp, 1495 void *arg, 1496 uint32_t evt) 1497 { 1498 struct lpfc_iocbq *cmdiocb; 1499 1500 cmdiocb = (struct lpfc_iocbq *) arg; 1501 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1502 return ndlp->nlp_state; 1503 } 1504 1505 static uint32_t 1506 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1507 struct lpfc_nodelist *ndlp, 1508 void *arg, 1509 uint32_t evt) 1510 { 1511 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1512 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1513 MAILBOX_t *mb = &pmb->u.mb; 1514 uint32_t did = mb->un.varWords[1]; 1515 1516 if (mb->mbxStatus) { 1517 /* RegLogin failed */ 1518 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1519 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1520 "x%x\n", 1521 did, mb->mbxStatus, vport->port_state, 1522 mb->un.varRegLogin.vpi, 1523 mb->un.varRegLogin.rpi); 1524 /* 1525 * If RegLogin failed due to lack of HBA resources do not 1526 * retry discovery. 1527 */ 1528 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1529 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1530 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1531 return ndlp->nlp_state; 1532 } 1533 1534 /* Put ndlp in npr state set plogi timer for 1 sec */ 1535 mod_timer(&ndlp->nlp_delayfunc, 1536 jiffies + msecs_to_jiffies(1000 * 1)); 1537 spin_lock_irq(shost->host_lock); 1538 ndlp->nlp_flag |= NLP_DELAY_TMO; 1539 spin_unlock_irq(shost->host_lock); 1540 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1541 1542 lpfc_issue_els_logo(vport, ndlp, 0); 1543 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1544 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1545 return ndlp->nlp_state; 1546 } 1547 1548 /* SLI4 ports have preallocated logical rpis. */ 1549 if (vport->phba->sli_rev < LPFC_SLI_REV4) 1550 ndlp->nlp_rpi = mb->un.varWords[0]; 1551 1552 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1553 1554 /* Only if we are not a fabric nport do we issue PRLI */ 1555 if (!(ndlp->nlp_type & NLP_FABRIC)) { 1556 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1557 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1558 lpfc_issue_els_prli(vport, ndlp, 0); 1559 } else { 1560 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1561 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1562 } 1563 return ndlp->nlp_state; 1564 } 1565 1566 static uint32_t 1567 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 1568 struct lpfc_nodelist *ndlp, 1569 void *arg, 1570 uint32_t evt) 1571 { 1572 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1573 1574 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1575 spin_lock_irq(shost->host_lock); 1576 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1577 spin_unlock_irq(shost->host_lock); 1578 return ndlp->nlp_state; 1579 } else { 1580 lpfc_drop_node(vport, ndlp); 1581 return NLP_STE_FREED_NODE; 1582 } 1583 } 1584 1585 static uint32_t 1586 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 1587 struct lpfc_nodelist *ndlp, 1588 void *arg, 1589 uint32_t evt) 1590 { 1591 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1592 1593 /* Don't do anything that will mess up processing of the 1594 * previous RSCN. 1595 */ 1596 if (vport->fc_flag & FC_RSCN_DEFERRED) 1597 return ndlp->nlp_state; 1598 1599 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1600 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1601 spin_lock_irq(shost->host_lock); 1602 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 1603 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1604 spin_unlock_irq(shost->host_lock); 1605 lpfc_disc_set_adisc(vport, ndlp); 1606 return ndlp->nlp_state; 1607 } 1608 1609 static uint32_t 1610 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1611 void *arg, uint32_t evt) 1612 { 1613 struct lpfc_iocbq *cmdiocb; 1614 1615 cmdiocb = (struct lpfc_iocbq *) arg; 1616 1617 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1618 return ndlp->nlp_state; 1619 } 1620 1621 static uint32_t 1622 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1623 void *arg, uint32_t evt) 1624 { 1625 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1626 1627 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1628 return ndlp->nlp_state; 1629 } 1630 1631 static uint32_t 1632 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1633 void *arg, uint32_t evt) 1634 { 1635 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1636 1637 /* Software abort outstanding PRLI before sending acc */ 1638 lpfc_els_abort(vport->phba, ndlp); 1639 1640 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1641 return ndlp->nlp_state; 1642 } 1643 1644 static uint32_t 1645 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1646 void *arg, uint32_t evt) 1647 { 1648 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1649 1650 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1651 return ndlp->nlp_state; 1652 } 1653 1654 /* This routine is envoked when we rcv a PRLO request from a nport 1655 * we are logged into. We should send back a PRLO rsp setting the 1656 * appropriate bits. 1657 * NEXT STATE = PRLI_ISSUE 1658 */ 1659 static uint32_t 1660 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1661 void *arg, uint32_t evt) 1662 { 1663 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1664 1665 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1666 return ndlp->nlp_state; 1667 } 1668 1669 static uint32_t 1670 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1671 void *arg, uint32_t evt) 1672 { 1673 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1674 struct lpfc_iocbq *cmdiocb, *rspiocb; 1675 struct lpfc_hba *phba = vport->phba; 1676 IOCB_t *irsp; 1677 PRLI *npr; 1678 1679 cmdiocb = (struct lpfc_iocbq *) arg; 1680 rspiocb = cmdiocb->context_un.rsp_iocb; 1681 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1682 1683 irsp = &rspiocb->iocb; 1684 if (irsp->ulpStatus) { 1685 if ((vport->port_type == LPFC_NPIV_PORT) && 1686 vport->cfg_restrict_login) { 1687 goto out; 1688 } 1689 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1690 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1691 return ndlp->nlp_state; 1692 } 1693 1694 /* Check out PRLI rsp */ 1695 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 1696 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 1697 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 1698 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) && 1699 (npr->prliType == PRLI_FCP_TYPE)) { 1700 if (npr->initiatorFunc) 1701 ndlp->nlp_type |= NLP_FCP_INITIATOR; 1702 if (npr->targetFunc) { 1703 ndlp->nlp_type |= NLP_FCP_TARGET; 1704 if (npr->writeXferRdyDis) 1705 ndlp->nlp_flag |= NLP_FIRSTBURST; 1706 } 1707 if (npr->Retry) 1708 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1709 } 1710 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 1711 (vport->port_type == LPFC_NPIV_PORT) && 1712 vport->cfg_restrict_login) { 1713 out: 1714 spin_lock_irq(shost->host_lock); 1715 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 1716 spin_unlock_irq(shost->host_lock); 1717 lpfc_issue_els_logo(vport, ndlp, 0); 1718 1719 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1720 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1721 return ndlp->nlp_state; 1722 } 1723 1724 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1725 if (ndlp->nlp_type & NLP_FCP_TARGET) 1726 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1727 else 1728 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1729 return ndlp->nlp_state; 1730 } 1731 1732 /*! lpfc_device_rm_prli_issue 1733 * 1734 * \pre 1735 * \post 1736 * \param phba 1737 * \param ndlp 1738 * \param arg 1739 * \param evt 1740 * \return uint32_t 1741 * 1742 * \b Description: 1743 * This routine is envoked when we a request to remove a nport we are in the 1744 * process of PRLIing. We should software abort outstanding prli, unreg 1745 * login, send a logout. We will change node state to UNUSED_NODE, put it 1746 * on plogi list so it can be freed when LOGO completes. 1747 * 1748 */ 1749 1750 static uint32_t 1751 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1752 void *arg, uint32_t evt) 1753 { 1754 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1755 1756 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1757 spin_lock_irq(shost->host_lock); 1758 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1759 spin_unlock_irq(shost->host_lock); 1760 return ndlp->nlp_state; 1761 } else { 1762 /* software abort outstanding PLOGI */ 1763 lpfc_els_abort(vport->phba, ndlp); 1764 1765 lpfc_drop_node(vport, ndlp); 1766 return NLP_STE_FREED_NODE; 1767 } 1768 } 1769 1770 1771 /*! lpfc_device_recov_prli_issue 1772 * 1773 * \pre 1774 * \post 1775 * \param phba 1776 * \param ndlp 1777 * \param arg 1778 * \param evt 1779 * \return uint32_t 1780 * 1781 * \b Description: 1782 * The routine is envoked when the state of a device is unknown, like 1783 * during a link down. We should remove the nodelist entry from the 1784 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 1785 * outstanding PRLI command, then free the node entry. 1786 */ 1787 static uint32_t 1788 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 1789 struct lpfc_nodelist *ndlp, 1790 void *arg, 1791 uint32_t evt) 1792 { 1793 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1794 struct lpfc_hba *phba = vport->phba; 1795 1796 /* Don't do anything that will mess up processing of the 1797 * previous RSCN. 1798 */ 1799 if (vport->fc_flag & FC_RSCN_DEFERRED) 1800 return ndlp->nlp_state; 1801 1802 /* software abort outstanding PRLI */ 1803 lpfc_els_abort(phba, ndlp); 1804 1805 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1806 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1807 spin_lock_irq(shost->host_lock); 1808 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1809 spin_unlock_irq(shost->host_lock); 1810 lpfc_disc_set_adisc(vport, ndlp); 1811 return ndlp->nlp_state; 1812 } 1813 1814 static uint32_t 1815 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1816 void *arg, uint32_t evt) 1817 { 1818 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1819 struct ls_rjt stat; 1820 1821 memset(&stat, 0, sizeof(struct ls_rjt)); 1822 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1823 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1824 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1825 return ndlp->nlp_state; 1826 } 1827 1828 static uint32_t 1829 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1830 void *arg, uint32_t evt) 1831 { 1832 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1833 struct ls_rjt stat; 1834 1835 memset(&stat, 0, sizeof(struct ls_rjt)); 1836 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1837 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1838 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1839 return ndlp->nlp_state; 1840 } 1841 1842 static uint32_t 1843 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1844 void *arg, uint32_t evt) 1845 { 1846 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1847 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1848 1849 spin_lock_irq(shost->host_lock); 1850 ndlp->nlp_flag &= NLP_LOGO_ACC; 1851 spin_unlock_irq(shost->host_lock); 1852 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1853 return ndlp->nlp_state; 1854 } 1855 1856 static uint32_t 1857 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1858 void *arg, uint32_t evt) 1859 { 1860 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1861 struct ls_rjt stat; 1862 1863 memset(&stat, 0, sizeof(struct ls_rjt)); 1864 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1865 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1866 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1867 return ndlp->nlp_state; 1868 } 1869 1870 static uint32_t 1871 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1872 void *arg, uint32_t evt) 1873 { 1874 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1875 struct ls_rjt stat; 1876 1877 memset(&stat, 0, sizeof(struct ls_rjt)); 1878 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1879 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1880 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1881 return ndlp->nlp_state; 1882 } 1883 1884 static uint32_t 1885 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1886 void *arg, uint32_t evt) 1887 { 1888 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1889 1890 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 1891 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1892 spin_lock_irq(shost->host_lock); 1893 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1894 spin_unlock_irq(shost->host_lock); 1895 lpfc_disc_set_adisc(vport, ndlp); 1896 return ndlp->nlp_state; 1897 } 1898 1899 static uint32_t 1900 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1901 void *arg, uint32_t evt) 1902 { 1903 /* 1904 * Take no action. If a LOGO is outstanding, then possibly DevLoss has 1905 * timed out and is calling for Device Remove. In this case, the LOGO 1906 * must be allowed to complete in state LOGO_ISSUE so that the rpi 1907 * and other NLP flags are correctly cleaned up. 1908 */ 1909 return ndlp->nlp_state; 1910 } 1911 1912 static uint32_t 1913 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 1914 struct lpfc_nodelist *ndlp, 1915 void *arg, uint32_t evt) 1916 { 1917 /* 1918 * Device Recovery events have no meaning for a node with a LOGO 1919 * outstanding. The LOGO has to complete first and handle the 1920 * node from that point. 1921 */ 1922 return ndlp->nlp_state; 1923 } 1924 1925 static uint32_t 1926 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1927 void *arg, uint32_t evt) 1928 { 1929 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1930 1931 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1932 return ndlp->nlp_state; 1933 } 1934 1935 static uint32_t 1936 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1937 void *arg, uint32_t evt) 1938 { 1939 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1940 1941 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1942 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1943 return ndlp->nlp_state; 1944 } 1945 1946 static uint32_t 1947 lpfc_rcv_logo_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_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1953 return ndlp->nlp_state; 1954 } 1955 1956 static uint32_t 1957 lpfc_rcv_padisc_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_padisc(vport, ndlp, cmdiocb); 1963 return ndlp->nlp_state; 1964 } 1965 1966 static uint32_t 1967 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1968 void *arg, uint32_t evt) 1969 { 1970 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1971 1972 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1973 return ndlp->nlp_state; 1974 } 1975 1976 static uint32_t 1977 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 1978 struct lpfc_nodelist *ndlp, 1979 void *arg, 1980 uint32_t evt) 1981 { 1982 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1983 1984 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 1985 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1986 spin_lock_irq(shost->host_lock); 1987 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1988 spin_unlock_irq(shost->host_lock); 1989 lpfc_disc_set_adisc(vport, ndlp); 1990 1991 return ndlp->nlp_state; 1992 } 1993 1994 static uint32_t 1995 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1996 void *arg, uint32_t evt) 1997 { 1998 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1999 2000 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2001 return ndlp->nlp_state; 2002 } 2003 2004 static uint32_t 2005 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2006 void *arg, uint32_t evt) 2007 { 2008 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2009 2010 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2011 return ndlp->nlp_state; 2012 } 2013 2014 static uint32_t 2015 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2016 void *arg, uint32_t evt) 2017 { 2018 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2019 2020 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2021 return ndlp->nlp_state; 2022 } 2023 2024 static uint32_t 2025 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2026 struct lpfc_nodelist *ndlp, 2027 void *arg, uint32_t evt) 2028 { 2029 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2030 2031 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2032 return ndlp->nlp_state; 2033 } 2034 2035 static uint32_t 2036 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2037 void *arg, uint32_t evt) 2038 { 2039 struct lpfc_hba *phba = vport->phba; 2040 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2041 2042 /* flush the target */ 2043 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 2044 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2045 2046 /* Treat like rcv logo */ 2047 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2048 return ndlp->nlp_state; 2049 } 2050 2051 static uint32_t 2052 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2053 struct lpfc_nodelist *ndlp, 2054 void *arg, 2055 uint32_t evt) 2056 { 2057 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2058 2059 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2060 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2061 spin_lock_irq(shost->host_lock); 2062 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2063 spin_unlock_irq(shost->host_lock); 2064 lpfc_disc_set_adisc(vport, ndlp); 2065 return ndlp->nlp_state; 2066 } 2067 2068 static uint32_t 2069 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2070 void *arg, uint32_t evt) 2071 { 2072 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2073 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2074 2075 /* Ignore PLOGI if we have an outstanding LOGO */ 2076 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2077 return ndlp->nlp_state; 2078 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2079 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2080 spin_lock_irq(shost->host_lock); 2081 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2082 spin_unlock_irq(shost->host_lock); 2083 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2084 /* send PLOGI immediately, move to PLOGI issue state */ 2085 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2086 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2087 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2088 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2089 } 2090 } 2091 return ndlp->nlp_state; 2092 } 2093 2094 static uint32_t 2095 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2096 void *arg, uint32_t evt) 2097 { 2098 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2099 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2100 struct ls_rjt stat; 2101 2102 memset(&stat, 0, sizeof (struct ls_rjt)); 2103 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2104 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2105 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2106 2107 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2108 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2109 spin_lock_irq(shost->host_lock); 2110 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2111 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2112 spin_unlock_irq(shost->host_lock); 2113 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2114 lpfc_issue_els_adisc(vport, ndlp, 0); 2115 } else { 2116 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2117 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2118 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2119 } 2120 } 2121 return ndlp->nlp_state; 2122 } 2123 2124 static uint32_t 2125 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2126 void *arg, uint32_t evt) 2127 { 2128 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2129 2130 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2131 return ndlp->nlp_state; 2132 } 2133 2134 static uint32_t 2135 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2136 void *arg, uint32_t evt) 2137 { 2138 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2139 2140 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2141 /* 2142 * Do not start discovery if discovery is about to start 2143 * or discovery in progress for this node. Starting discovery 2144 * here will affect the counting of discovery threads. 2145 */ 2146 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2147 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2148 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2149 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2150 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2151 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2152 lpfc_issue_els_adisc(vport, ndlp, 0); 2153 } else { 2154 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2155 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2156 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2157 } 2158 } 2159 return ndlp->nlp_state; 2160 } 2161 2162 static uint32_t 2163 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2164 void *arg, uint32_t evt) 2165 { 2166 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2167 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2168 2169 spin_lock_irq(shost->host_lock); 2170 ndlp->nlp_flag |= NLP_LOGO_ACC; 2171 spin_unlock_irq(shost->host_lock); 2172 2173 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2174 2175 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2176 mod_timer(&ndlp->nlp_delayfunc, 2177 jiffies + msecs_to_jiffies(1000 * 1)); 2178 spin_lock_irq(shost->host_lock); 2179 ndlp->nlp_flag |= NLP_DELAY_TMO; 2180 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2181 spin_unlock_irq(shost->host_lock); 2182 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2183 } else { 2184 spin_lock_irq(shost->host_lock); 2185 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2186 spin_unlock_irq(shost->host_lock); 2187 } 2188 return ndlp->nlp_state; 2189 } 2190 2191 static uint32_t 2192 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2193 void *arg, uint32_t evt) 2194 { 2195 struct lpfc_iocbq *cmdiocb, *rspiocb; 2196 IOCB_t *irsp; 2197 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2198 2199 cmdiocb = (struct lpfc_iocbq *) arg; 2200 rspiocb = cmdiocb->context_un.rsp_iocb; 2201 2202 irsp = &rspiocb->iocb; 2203 if (irsp->ulpStatus) { 2204 spin_lock_irq(shost->host_lock); 2205 ndlp->nlp_flag |= NLP_DEFER_RM; 2206 spin_unlock_irq(shost->host_lock); 2207 return NLP_STE_FREED_NODE; 2208 } 2209 return ndlp->nlp_state; 2210 } 2211 2212 static uint32_t 2213 lpfc_cmpl_prli_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 2219 cmdiocb = (struct lpfc_iocbq *) arg; 2220 rspiocb = cmdiocb->context_un.rsp_iocb; 2221 2222 irsp = &rspiocb->iocb; 2223 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2224 lpfc_drop_node(vport, ndlp); 2225 return NLP_STE_FREED_NODE; 2226 } 2227 return ndlp->nlp_state; 2228 } 2229 2230 static uint32_t 2231 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2232 void *arg, uint32_t evt) 2233 { 2234 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2235 2236 /* For the fabric port just clear the fc flags. */ 2237 if (ndlp->nlp_DID == Fabric_DID) { 2238 spin_lock_irq(shost->host_lock); 2239 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2240 spin_unlock_irq(shost->host_lock); 2241 } 2242 lpfc_unreg_rpi(vport, ndlp); 2243 return ndlp->nlp_state; 2244 } 2245 2246 static uint32_t 2247 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2248 void *arg, uint32_t evt) 2249 { 2250 struct lpfc_iocbq *cmdiocb, *rspiocb; 2251 IOCB_t *irsp; 2252 2253 cmdiocb = (struct lpfc_iocbq *) arg; 2254 rspiocb = cmdiocb->context_un.rsp_iocb; 2255 2256 irsp = &rspiocb->iocb; 2257 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2258 lpfc_drop_node(vport, ndlp); 2259 return NLP_STE_FREED_NODE; 2260 } 2261 return ndlp->nlp_state; 2262 } 2263 2264 static uint32_t 2265 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2266 struct lpfc_nodelist *ndlp, 2267 void *arg, uint32_t evt) 2268 { 2269 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2270 MAILBOX_t *mb = &pmb->u.mb; 2271 2272 if (!mb->mbxStatus) { 2273 /* SLI4 ports have preallocated logical rpis. */ 2274 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2275 ndlp->nlp_rpi = mb->un.varWords[0]; 2276 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2277 } else { 2278 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2279 lpfc_drop_node(vport, ndlp); 2280 return NLP_STE_FREED_NODE; 2281 } 2282 } 2283 return ndlp->nlp_state; 2284 } 2285 2286 static uint32_t 2287 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2288 void *arg, uint32_t evt) 2289 { 2290 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2291 2292 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2293 spin_lock_irq(shost->host_lock); 2294 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2295 spin_unlock_irq(shost->host_lock); 2296 return ndlp->nlp_state; 2297 } 2298 lpfc_drop_node(vport, ndlp); 2299 return NLP_STE_FREED_NODE; 2300 } 2301 2302 static uint32_t 2303 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2304 void *arg, uint32_t evt) 2305 { 2306 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2307 2308 /* Don't do anything that will mess up processing of the 2309 * previous RSCN. 2310 */ 2311 if (vport->fc_flag & FC_RSCN_DEFERRED) 2312 return ndlp->nlp_state; 2313 2314 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2315 spin_lock_irq(shost->host_lock); 2316 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2317 spin_unlock_irq(shost->host_lock); 2318 return ndlp->nlp_state; 2319 } 2320 2321 2322 /* This next section defines the NPort Discovery State Machine */ 2323 2324 /* There are 4 different double linked lists nodelist entries can reside on. 2325 * The plogi list and adisc list are used when Link Up discovery or RSCN 2326 * processing is needed. Each list holds the nodes that we will send PLOGI 2327 * or ADISC on. These lists will keep track of what nodes will be effected 2328 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2329 * The unmapped_list will contain all nodes that we have successfully logged 2330 * into at the Fibre Channel level. The mapped_list will contain all nodes 2331 * that are mapped FCP targets. 2332 */ 2333 /* 2334 * The bind list is a list of undiscovered (potentially non-existent) nodes 2335 * that we have saved binding information on. This information is used when 2336 * nodes transition from the unmapped to the mapped list. 2337 */ 2338 /* For UNUSED_NODE state, the node has just been allocated . 2339 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2340 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2341 * and put on the unmapped list. For ADISC processing, the node is taken off 2342 * the ADISC list and placed on either the mapped or unmapped list (depending 2343 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2344 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2345 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2346 * node, the node is taken off the unmapped list. The binding list is checked 2347 * for a valid binding, or a binding is automatically assigned. If binding 2348 * assignment is unsuccessful, the node is left on the unmapped list. If 2349 * binding assignment is successful, the associated binding list entry (if 2350 * any) is removed, and the node is placed on the mapped list. 2351 */ 2352 /* 2353 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2354 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2355 * expire, all effected nodes will receive a DEVICE_RM event. 2356 */ 2357 /* 2358 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2359 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2360 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2361 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2362 * we will first process the ADISC list. 32 entries are processed initially and 2363 * ADISC is initited for each one. Completions / Events for each node are 2364 * funnelled thru the state machine. As each node finishes ADISC processing, it 2365 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2366 * waiting, and the ADISC list count is identically 0, then we are done. For 2367 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2368 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2369 * list. 32 entries are processed initially and PLOGI is initited for each one. 2370 * Completions / Events for each node are funnelled thru the state machine. As 2371 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2372 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2373 * indentically 0, then we are done. We have now completed discovery / RSCN 2374 * handling. Upon completion, ALL nodes should be on either the mapped or 2375 * unmapped lists. 2376 */ 2377 2378 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2379 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2380 /* Action routine Event Current State */ 2381 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2382 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2383 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2384 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2385 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2386 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2387 lpfc_disc_illegal, /* CMPL_PLOGI */ 2388 lpfc_disc_illegal, /* CMPL_PRLI */ 2389 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2390 lpfc_disc_illegal, /* CMPL_ADISC */ 2391 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2392 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2393 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2394 2395 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2396 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2397 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2398 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2399 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2400 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2401 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2402 lpfc_disc_illegal, /* CMPL_PRLI */ 2403 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2404 lpfc_disc_illegal, /* CMPL_ADISC */ 2405 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2406 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2407 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2408 2409 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2410 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2411 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2412 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2413 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2414 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2415 lpfc_disc_illegal, /* CMPL_PLOGI */ 2416 lpfc_disc_illegal, /* CMPL_PRLI */ 2417 lpfc_disc_illegal, /* CMPL_LOGO */ 2418 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2419 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2420 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2421 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2422 2423 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2424 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2425 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2426 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2427 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2428 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2429 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2430 lpfc_disc_illegal, /* CMPL_PRLI */ 2431 lpfc_disc_illegal, /* CMPL_LOGO */ 2432 lpfc_disc_illegal, /* CMPL_ADISC */ 2433 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2434 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2435 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2436 2437 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 2438 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 2439 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 2440 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 2441 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 2442 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 2443 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2444 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 2445 lpfc_disc_illegal, /* CMPL_LOGO */ 2446 lpfc_disc_illegal, /* CMPL_ADISC */ 2447 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2448 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 2449 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 2450 2451 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 2452 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 2453 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 2454 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 2455 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 2456 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 2457 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2458 lpfc_disc_illegal, /* CMPL_PRLI */ 2459 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 2460 lpfc_disc_illegal, /* CMPL_ADISC */ 2461 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2462 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 2463 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 2464 2465 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 2466 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 2467 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 2468 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 2469 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 2470 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 2471 lpfc_disc_illegal, /* CMPL_PLOGI */ 2472 lpfc_disc_illegal, /* CMPL_PRLI */ 2473 lpfc_disc_illegal, /* CMPL_LOGO */ 2474 lpfc_disc_illegal, /* CMPL_ADISC */ 2475 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2476 lpfc_disc_illegal, /* DEVICE_RM */ 2477 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 2478 2479 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 2480 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 2481 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 2482 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 2483 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 2484 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 2485 lpfc_disc_illegal, /* CMPL_PLOGI */ 2486 lpfc_disc_illegal, /* CMPL_PRLI */ 2487 lpfc_disc_illegal, /* CMPL_LOGO */ 2488 lpfc_disc_illegal, /* CMPL_ADISC */ 2489 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2490 lpfc_disc_illegal, /* DEVICE_RM */ 2491 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 2492 2493 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 2494 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 2495 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 2496 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 2497 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 2498 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 2499 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 2500 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 2501 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 2502 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 2503 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 2504 lpfc_device_rm_npr_node, /* DEVICE_RM */ 2505 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 2506 }; 2507 2508 int 2509 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2510 void *arg, uint32_t evt) 2511 { 2512 uint32_t cur_state, rc; 2513 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 2514 uint32_t); 2515 uint32_t got_ndlp = 0; 2516 2517 if (lpfc_nlp_get(ndlp)) 2518 got_ndlp = 1; 2519 2520 cur_state = ndlp->nlp_state; 2521 2522 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 2523 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2524 "0211 DSM in event x%x on NPort x%x in " 2525 "state %d Data: x%x\n", 2526 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag); 2527 2528 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2529 "DSM in: evt:%d ste:%d did:x%x", 2530 evt, cur_state, ndlp->nlp_DID); 2531 2532 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 2533 rc = (func) (vport, ndlp, arg, evt); 2534 2535 /* DSM out state <rc> on NPort <nlp_DID> */ 2536 if (got_ndlp) { 2537 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2538 "0212 DSM out state %d on NPort x%x Data: x%x\n", 2539 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2540 2541 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2542 "DSM out: ste:%d did:x%x flg:x%x", 2543 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2544 /* Decrement the ndlp reference count held for this function */ 2545 lpfc_nlp_put(ndlp); 2546 } else { 2547 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2548 "0213 DSM out state %d on NPort free\n", rc); 2549 2550 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2551 "DSM out: ste:%d did:x%x flg:x%x", 2552 rc, 0, 0); 2553 } 2554 2555 return rc; 2556 } 2557