1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2015 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22 #include <linux/blkdev.h> 23 #include <linux/pci.h> 24 #include <linux/slab.h> 25 #include <linux/interrupt.h> 26 27 #include <scsi/scsi.h> 28 #include <scsi/scsi_device.h> 29 #include <scsi/scsi_host.h> 30 #include <scsi/scsi_transport_fc.h> 31 32 #include "lpfc_hw4.h" 33 #include "lpfc_hw.h" 34 #include "lpfc_sli.h" 35 #include "lpfc_sli4.h" 36 #include "lpfc_nl.h" 37 #include "lpfc_disc.h" 38 #include "lpfc_scsi.h" 39 #include "lpfc.h" 40 #include "lpfc_logmsg.h" 41 #include "lpfc_crtn.h" 42 #include "lpfc_vport.h" 43 #include "lpfc_debugfs.h" 44 45 46 /* Called to verify a rcv'ed ADISC was intended for us. */ 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 uint64_t nlp_portwwn = 0; 280 uint32_t *lp; 281 IOCB_t *icmd; 282 struct serv_parm *sp; 283 LPFC_MBOXQ_t *mbox; 284 struct ls_rjt stat; 285 int rc; 286 287 memset(&stat, 0, sizeof (struct ls_rjt)); 288 if (vport->port_state <= LPFC_FDISC) { 289 /* Before responding to PLOGI, check for pt2pt mode. 290 * If we are pt2pt, with an outstanding FLOGI, abort 291 * the FLOGI and resend it first. 292 */ 293 if (vport->fc_flag & FC_PT2PT) { 294 lpfc_els_abort_flogi(phba); 295 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) { 296 /* If the other side is supposed to initiate 297 * the PLOGI anyway, just ACC it now and 298 * move on with discovery. 299 */ 300 phba->fc_edtov = FF_DEF_EDTOV; 301 phba->fc_ratov = FF_DEF_RATOV; 302 /* Start discovery - this should just do 303 CLEAR_LA */ 304 lpfc_disc_start(vport); 305 } else 306 lpfc_initial_flogi(vport); 307 } else { 308 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 309 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 310 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 311 ndlp, NULL); 312 return 0; 313 } 314 } 315 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 316 lp = (uint32_t *) pcmd->virt; 317 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 318 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 319 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 320 "0140 PLOGI Reject: invalid nname\n"); 321 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 322 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 323 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 324 NULL); 325 return 0; 326 } 327 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 328 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 329 "0141 PLOGI Reject: invalid pname\n"); 330 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 331 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 332 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 333 NULL); 334 return 0; 335 } 336 337 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 338 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 339 /* Reject this request because invalid parameters */ 340 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 341 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 342 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 343 NULL); 344 return 0; 345 } 346 icmd = &cmdiocb->iocb; 347 348 /* PLOGI chkparm OK */ 349 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 350 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 351 "x%x x%x x%x\n", 352 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 353 ndlp->nlp_rpi, vport->port_state, 354 vport->fc_flag); 355 356 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 357 ndlp->nlp_fcp_info |= CLASS2; 358 else 359 ndlp->nlp_fcp_info |= CLASS3; 360 361 ndlp->nlp_class_sup = 0; 362 if (sp->cls1.classValid) 363 ndlp->nlp_class_sup |= FC_COS_CLASS1; 364 if (sp->cls2.classValid) 365 ndlp->nlp_class_sup |= FC_COS_CLASS2; 366 if (sp->cls3.classValid) 367 ndlp->nlp_class_sup |= FC_COS_CLASS3; 368 if (sp->cls4.classValid) 369 ndlp->nlp_class_sup |= FC_COS_CLASS4; 370 ndlp->nlp_maxframe = 371 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 372 373 /* if already logged in, do implicit logout */ 374 switch (ndlp->nlp_state) { 375 case NLP_STE_NPR_NODE: 376 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 377 break; 378 case NLP_STE_REG_LOGIN_ISSUE: 379 case NLP_STE_PRLI_ISSUE: 380 case NLP_STE_UNMAPPED_NODE: 381 case NLP_STE_MAPPED_NODE: 382 /* lpfc_plogi_confirm_nport skips fabric did, handle it here */ 383 if (!(ndlp->nlp_type & NLP_FABRIC)) { 384 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 385 ndlp, NULL); 386 return 1; 387 } 388 if (nlp_portwwn != 0 && 389 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 390 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 391 "0143 PLOGI recv'd from DID: x%x " 392 "WWPN changed: old %llx new %llx\n", 393 ndlp->nlp_DID, 394 (unsigned long long)nlp_portwwn, 395 (unsigned long long) 396 wwn_to_u64(sp->portName.u.wwn)); 397 398 ndlp->nlp_prev_state = ndlp->nlp_state; 399 /* rport needs to be unregistered first */ 400 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 401 break; 402 } 403 404 /* Check for Nport to NPort pt2pt protocol */ 405 if ((vport->fc_flag & FC_PT2PT) && 406 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 407 408 /* rcv'ed PLOGI decides what our NPortId will be */ 409 vport->fc_myDID = icmd->un.rcvels.parmRo; 410 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 411 if (mbox == NULL) 412 goto out; 413 lpfc_config_link(phba, mbox); 414 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 415 mbox->vport = vport; 416 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 417 if (rc == MBX_NOT_FINISHED) { 418 mempool_free(mbox, phba->mbox_mem_pool); 419 goto out; 420 } 421 /* 422 * For SLI4, the VFI/VPI are registered AFTER the 423 * Nport with the higher WWPN sends us a PLOGI with 424 * our assigned NPortId. 425 */ 426 if (phba->sli_rev == LPFC_SLI_REV4) 427 lpfc_issue_reg_vfi(vport); 428 429 lpfc_can_disctmo(vport); 430 } 431 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 432 if (!mbox) 433 goto out; 434 435 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 436 if (phba->sli_rev == LPFC_SLI_REV4) 437 lpfc_unreg_rpi(vport, ndlp); 438 439 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID, 440 (uint8_t *) sp, mbox, ndlp->nlp_rpi); 441 if (rc) { 442 mempool_free(mbox, phba->mbox_mem_pool); 443 goto out; 444 } 445 446 /* ACC PLOGI rsp command needs to execute first, 447 * queue this mbox command to be processed later. 448 */ 449 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 450 /* 451 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox 452 * command issued in lpfc_cmpl_els_acc(). 453 */ 454 mbox->vport = vport; 455 spin_lock_irq(shost->host_lock); 456 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 457 spin_unlock_irq(shost->host_lock); 458 459 /* 460 * If there is an outstanding PLOGI issued, abort it before 461 * sending ACC rsp for received PLOGI. If pending plogi 462 * is not canceled here, the plogi will be rejected by 463 * remote port and will be retried. On a configuration with 464 * single discovery thread, this will cause a huge delay in 465 * discovery. Also this will cause multiple state machines 466 * running in parallel for this node. 467 */ 468 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { 469 /* software abort outstanding PLOGI */ 470 lpfc_els_abort(phba, ndlp); 471 } 472 473 if ((vport->port_type == LPFC_NPIV_PORT && 474 vport->cfg_restrict_login)) { 475 476 /* In order to preserve RPIs, we want to cleanup 477 * the default RPI the firmware created to rcv 478 * this ELS request. The only way to do this is 479 * to register, then unregister the RPI. 480 */ 481 spin_lock_irq(shost->host_lock); 482 ndlp->nlp_flag |= NLP_RM_DFLT_RPI; 483 spin_unlock_irq(shost->host_lock); 484 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 485 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 486 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 487 ndlp, mbox); 488 if (rc) 489 mempool_free(mbox, phba->mbox_mem_pool); 490 return 1; 491 } 492 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox); 493 if (rc) 494 mempool_free(mbox, phba->mbox_mem_pool); 495 return 1; 496 out: 497 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 498 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 499 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 500 return 0; 501 } 502 503 /** 504 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 505 * @phba: pointer to lpfc hba data structure. 506 * @mboxq: pointer to mailbox object 507 * 508 * This routine is invoked to issue a completion to a rcv'ed 509 * ADISC or PDISC after the paused RPI has been resumed. 510 **/ 511 static void 512 lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 513 { 514 struct lpfc_vport *vport; 515 struct lpfc_iocbq *elsiocb; 516 struct lpfc_nodelist *ndlp; 517 uint32_t cmd; 518 519 elsiocb = (struct lpfc_iocbq *)mboxq->context1; 520 ndlp = (struct lpfc_nodelist *) mboxq->context2; 521 vport = mboxq->vport; 522 cmd = elsiocb->drvrTimeout; 523 524 if (cmd == ELS_CMD_ADISC) { 525 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 526 } else { 527 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 528 ndlp, NULL); 529 } 530 kfree(elsiocb); 531 mempool_free(mboxq, phba->mbox_mem_pool); 532 } 533 534 static int 535 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 536 struct lpfc_iocbq *cmdiocb) 537 { 538 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 539 struct lpfc_iocbq *elsiocb; 540 struct lpfc_dmabuf *pcmd; 541 struct serv_parm *sp; 542 struct lpfc_name *pnn, *ppn; 543 struct ls_rjt stat; 544 ADISC *ap; 545 IOCB_t *icmd; 546 uint32_t *lp; 547 uint32_t cmd; 548 549 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 550 lp = (uint32_t *) pcmd->virt; 551 552 cmd = *lp++; 553 if (cmd == ELS_CMD_ADISC) { 554 ap = (ADISC *) lp; 555 pnn = (struct lpfc_name *) & ap->nodeName; 556 ppn = (struct lpfc_name *) & ap->portName; 557 } else { 558 sp = (struct serv_parm *) lp; 559 pnn = (struct lpfc_name *) & sp->nodeName; 560 ppn = (struct lpfc_name *) & sp->portName; 561 } 562 563 icmd = &cmdiocb->iocb; 564 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 565 566 /* 567 * As soon as we send ACC, the remote NPort can 568 * start sending us data. Thus, for SLI4 we must 569 * resume the RPI before the ACC goes out. 570 */ 571 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 572 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 573 GFP_KERNEL); 574 if (elsiocb) { 575 576 /* Save info from cmd IOCB used in rsp */ 577 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 578 sizeof(struct lpfc_iocbq)); 579 580 /* Save the ELS cmd */ 581 elsiocb->drvrTimeout = cmd; 582 583 lpfc_sli4_resume_rpi(ndlp, 584 lpfc_mbx_cmpl_resume_rpi, elsiocb); 585 goto out; 586 } 587 } 588 589 if (cmd == ELS_CMD_ADISC) { 590 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 591 } else { 592 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 593 ndlp, NULL); 594 } 595 out: 596 /* If we are authenticated, move to the proper state */ 597 if (ndlp->nlp_type & NLP_FCP_TARGET) 598 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 599 else 600 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 601 602 return 1; 603 } 604 /* Reject this request because invalid parameters */ 605 stat.un.b.lsRjtRsvd0 = 0; 606 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 607 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 608 stat.un.b.vendorUnique = 0; 609 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 610 611 /* 1 sec timeout */ 612 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 613 614 spin_lock_irq(shost->host_lock); 615 ndlp->nlp_flag |= NLP_DELAY_TMO; 616 spin_unlock_irq(shost->host_lock); 617 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 618 ndlp->nlp_prev_state = ndlp->nlp_state; 619 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 620 return 0; 621 } 622 623 static int 624 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 625 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 626 { 627 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 628 struct lpfc_hba *phba = vport->phba; 629 struct lpfc_vport **vports; 630 int i, active_vlink_present = 0 ; 631 632 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 633 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 634 * PLOGIs during LOGO storms from a device. 635 */ 636 spin_lock_irq(shost->host_lock); 637 ndlp->nlp_flag |= NLP_LOGO_ACC; 638 spin_unlock_irq(shost->host_lock); 639 if (els_cmd == ELS_CMD_PRLO) 640 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 641 else 642 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 643 if (ndlp->nlp_DID == Fabric_DID) { 644 if (vport->port_state <= LPFC_FDISC) 645 goto out; 646 lpfc_linkdown_port(vport); 647 spin_lock_irq(shost->host_lock); 648 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 649 spin_unlock_irq(shost->host_lock); 650 vports = lpfc_create_vport_work_array(phba); 651 if (vports) { 652 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 653 i++) { 654 if ((!(vports[i]->fc_flag & 655 FC_VPORT_LOGO_RCVD)) && 656 (vports[i]->port_state > LPFC_FDISC)) { 657 active_vlink_present = 1; 658 break; 659 } 660 } 661 lpfc_destroy_vport_work_array(phba, vports); 662 } 663 664 /* 665 * Don't re-instantiate if vport is marked for deletion. 666 * If we are here first then vport_delete is going to wait 667 * for discovery to complete. 668 */ 669 if (!(vport->load_flag & FC_UNLOADING) && 670 active_vlink_present) { 671 /* 672 * If there are other active VLinks present, 673 * re-instantiate the Vlink using FDISC. 674 */ 675 mod_timer(&ndlp->nlp_delayfunc, 676 jiffies + msecs_to_jiffies(1000)); 677 spin_lock_irq(shost->host_lock); 678 ndlp->nlp_flag |= NLP_DELAY_TMO; 679 spin_unlock_irq(shost->host_lock); 680 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 681 vport->port_state = LPFC_FDISC; 682 } else { 683 spin_lock_irq(shost->host_lock); 684 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 685 spin_unlock_irq(shost->host_lock); 686 lpfc_retry_pport_discovery(phba); 687 } 688 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 689 ((ndlp->nlp_type & NLP_FCP_TARGET) || 690 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || 691 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 692 /* Only try to re-login if this is NOT a Fabric Node */ 693 mod_timer(&ndlp->nlp_delayfunc, 694 jiffies + msecs_to_jiffies(1000 * 1)); 695 spin_lock_irq(shost->host_lock); 696 ndlp->nlp_flag |= NLP_DELAY_TMO; 697 spin_unlock_irq(shost->host_lock); 698 699 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 700 } 701 out: 702 ndlp->nlp_prev_state = ndlp->nlp_state; 703 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 704 705 spin_lock_irq(shost->host_lock); 706 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 707 spin_unlock_irq(shost->host_lock); 708 /* The driver has to wait until the ACC completes before it continues 709 * processing the LOGO. The action will resume in 710 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 711 * unreg_login, the driver waits so the ACC does not get aborted. 712 */ 713 return 0; 714 } 715 716 static void 717 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 718 struct lpfc_iocbq *cmdiocb) 719 { 720 struct lpfc_dmabuf *pcmd; 721 uint32_t *lp; 722 PRLI *npr; 723 struct fc_rport *rport = ndlp->rport; 724 u32 roles; 725 726 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 727 lp = (uint32_t *) pcmd->virt; 728 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 729 730 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 731 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 732 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 733 if (npr->prliType == PRLI_FCP_TYPE) { 734 if (npr->initiatorFunc) 735 ndlp->nlp_type |= NLP_FCP_INITIATOR; 736 if (npr->targetFunc) { 737 ndlp->nlp_type |= NLP_FCP_TARGET; 738 if (npr->writeXferRdyDis) 739 ndlp->nlp_flag |= NLP_FIRSTBURST; 740 } 741 if (npr->Retry) 742 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 743 } 744 if (rport) { 745 /* We need to update the rport role values */ 746 roles = FC_RPORT_ROLE_UNKNOWN; 747 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 748 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 749 if (ndlp->nlp_type & NLP_FCP_TARGET) 750 roles |= FC_RPORT_ROLE_FCP_TARGET; 751 752 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 753 "rport rolechg: role:x%x did:x%x flg:x%x", 754 roles, ndlp->nlp_DID, ndlp->nlp_flag); 755 756 fc_remote_port_rolechg(rport, roles); 757 } 758 } 759 760 static uint32_t 761 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 762 { 763 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 764 765 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 766 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 767 return 0; 768 } 769 770 if (!(vport->fc_flag & FC_PT2PT)) { 771 /* Check config parameter use-adisc or FCP-2 */ 772 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) || 773 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 774 (ndlp->nlp_type & NLP_FCP_TARGET))) { 775 spin_lock_irq(shost->host_lock); 776 ndlp->nlp_flag |= NLP_NPR_ADISC; 777 spin_unlock_irq(shost->host_lock); 778 return 1; 779 } 780 } 781 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 782 lpfc_unreg_rpi(vport, ndlp); 783 return 0; 784 } 785 786 /** 787 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 788 * @phba : Pointer to lpfc_hba structure. 789 * @vport: Pointer to lpfc_vport structure. 790 * @rpi : rpi to be release. 791 * 792 * This function will send a unreg_login mailbox command to the firmware 793 * to release a rpi. 794 **/ 795 void 796 lpfc_release_rpi(struct lpfc_hba *phba, 797 struct lpfc_vport *vport, 798 uint16_t rpi) 799 { 800 LPFC_MBOXQ_t *pmb; 801 int rc; 802 803 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 804 GFP_KERNEL); 805 if (!pmb) 806 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 807 "2796 mailbox memory allocation failed \n"); 808 else { 809 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 810 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 811 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 812 if (rc == MBX_NOT_FINISHED) 813 mempool_free(pmb, phba->mbox_mem_pool); 814 } 815 } 816 817 static uint32_t 818 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 819 void *arg, uint32_t evt) 820 { 821 struct lpfc_hba *phba; 822 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 823 MAILBOX_t *mb; 824 uint16_t rpi; 825 826 phba = vport->phba; 827 /* Release the RPI if reglogin completing */ 828 if (!(phba->pport->load_flag & FC_UNLOADING) && 829 (evt == NLP_EVT_CMPL_REG_LOGIN) && 830 (!pmb->u.mb.mbxStatus)) { 831 mb = &pmb->u.mb; 832 rpi = pmb->u.mb.un.varWords[0]; 833 lpfc_release_rpi(phba, vport, rpi); 834 } 835 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 836 "0271 Illegal State Transition: node x%x " 837 "event x%x, state x%x Data: x%x x%x\n", 838 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 839 ndlp->nlp_flag); 840 return ndlp->nlp_state; 841 } 842 843 static uint32_t 844 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 845 void *arg, uint32_t evt) 846 { 847 /* This transition is only legal if we previously 848 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 849 * working on the same NPortID, do nothing for this thread 850 * to stop it. 851 */ 852 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 853 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 854 "0272 Illegal State Transition: node x%x " 855 "event x%x, state x%x Data: x%x x%x\n", 856 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 857 ndlp->nlp_flag); 858 } 859 return ndlp->nlp_state; 860 } 861 862 /* Start of Discovery State Machine routines */ 863 864 static uint32_t 865 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 866 void *arg, uint32_t evt) 867 { 868 struct lpfc_iocbq *cmdiocb; 869 870 cmdiocb = (struct lpfc_iocbq *) arg; 871 872 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 873 return ndlp->nlp_state; 874 } 875 return NLP_STE_FREED_NODE; 876 } 877 878 static uint32_t 879 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 880 void *arg, uint32_t evt) 881 { 882 lpfc_issue_els_logo(vport, ndlp, 0); 883 return ndlp->nlp_state; 884 } 885 886 static uint32_t 887 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 888 void *arg, uint32_t evt) 889 { 890 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 891 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 892 893 spin_lock_irq(shost->host_lock); 894 ndlp->nlp_flag |= NLP_LOGO_ACC; 895 spin_unlock_irq(shost->host_lock); 896 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 897 898 return ndlp->nlp_state; 899 } 900 901 static uint32_t 902 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 903 void *arg, uint32_t evt) 904 { 905 return NLP_STE_FREED_NODE; 906 } 907 908 static uint32_t 909 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 910 void *arg, uint32_t evt) 911 { 912 return NLP_STE_FREED_NODE; 913 } 914 915 static uint32_t 916 lpfc_device_recov_unused_node(struct lpfc_vport *vport, 917 struct lpfc_nodelist *ndlp, 918 void *arg, uint32_t evt) 919 { 920 return ndlp->nlp_state; 921 } 922 923 static uint32_t 924 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 925 void *arg, uint32_t evt) 926 { 927 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 928 struct lpfc_hba *phba = vport->phba; 929 struct lpfc_iocbq *cmdiocb = arg; 930 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 931 uint32_t *lp = (uint32_t *) pcmd->virt; 932 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 933 struct ls_rjt stat; 934 int port_cmp; 935 936 memset(&stat, 0, sizeof (struct ls_rjt)); 937 938 /* For a PLOGI, we only accept if our portname is less 939 * than the remote portname. 940 */ 941 phba->fc_stat.elsLogiCol++; 942 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 943 sizeof(struct lpfc_name)); 944 945 if (port_cmp >= 0) { 946 /* Reject this request because the remote node will accept 947 ours */ 948 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 949 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 950 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 951 NULL); 952 } else { 953 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 954 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 955 (vport->num_disc_nodes)) { 956 spin_lock_irq(shost->host_lock); 957 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 958 spin_unlock_irq(shost->host_lock); 959 /* Check if there are more PLOGIs to be sent */ 960 lpfc_more_plogi(vport); 961 if (vport->num_disc_nodes == 0) { 962 spin_lock_irq(shost->host_lock); 963 vport->fc_flag &= ~FC_NDISC_ACTIVE; 964 spin_unlock_irq(shost->host_lock); 965 lpfc_can_disctmo(vport); 966 lpfc_end_rscn(vport); 967 } 968 } 969 } /* If our portname was less */ 970 971 return ndlp->nlp_state; 972 } 973 974 static uint32_t 975 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 976 void *arg, uint32_t evt) 977 { 978 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 979 struct ls_rjt stat; 980 981 memset(&stat, 0, sizeof (struct ls_rjt)); 982 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 983 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 984 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 985 return ndlp->nlp_state; 986 } 987 988 static uint32_t 989 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 990 void *arg, uint32_t evt) 991 { 992 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 993 994 /* software abort outstanding PLOGI */ 995 lpfc_els_abort(vport->phba, ndlp); 996 997 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 998 return ndlp->nlp_state; 999 } 1000 1001 static uint32_t 1002 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1003 void *arg, uint32_t evt) 1004 { 1005 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1006 struct lpfc_hba *phba = vport->phba; 1007 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1008 1009 /* software abort outstanding PLOGI */ 1010 lpfc_els_abort(phba, ndlp); 1011 1012 if (evt == NLP_EVT_RCV_LOGO) { 1013 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1014 } else { 1015 lpfc_issue_els_logo(vport, ndlp, 0); 1016 } 1017 1018 /* Put ndlp in npr state set plogi timer for 1 sec */ 1019 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1020 spin_lock_irq(shost->host_lock); 1021 ndlp->nlp_flag |= NLP_DELAY_TMO; 1022 spin_unlock_irq(shost->host_lock); 1023 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1024 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1025 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1026 1027 return ndlp->nlp_state; 1028 } 1029 1030 static uint32_t 1031 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1032 struct lpfc_nodelist *ndlp, 1033 void *arg, 1034 uint32_t evt) 1035 { 1036 struct lpfc_hba *phba = vport->phba; 1037 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1038 struct lpfc_iocbq *cmdiocb, *rspiocb; 1039 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1040 uint32_t *lp; 1041 IOCB_t *irsp; 1042 struct serv_parm *sp; 1043 LPFC_MBOXQ_t *mbox; 1044 1045 cmdiocb = (struct lpfc_iocbq *) arg; 1046 rspiocb = cmdiocb->context_un.rsp_iocb; 1047 1048 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1049 /* Recovery from PLOGI collision logic */ 1050 return ndlp->nlp_state; 1051 } 1052 1053 irsp = &rspiocb->iocb; 1054 1055 if (irsp->ulpStatus) 1056 goto out; 1057 1058 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1059 1060 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1061 if (!prsp) 1062 goto out; 1063 1064 lp = (uint32_t *) prsp->virt; 1065 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1066 1067 /* Some switches have FDMI servers returning 0 for WWN */ 1068 if ((ndlp->nlp_DID != FDMI_DID) && 1069 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1070 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1071 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1072 "0142 PLOGI RSP: Invalid WWN.\n"); 1073 goto out; 1074 } 1075 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1076 goto out; 1077 /* PLOGI chkparm OK */ 1078 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1079 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1080 ndlp->nlp_DID, ndlp->nlp_state, 1081 ndlp->nlp_flag, ndlp->nlp_rpi); 1082 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1083 ndlp->nlp_fcp_info |= CLASS2; 1084 else 1085 ndlp->nlp_fcp_info |= CLASS3; 1086 1087 ndlp->nlp_class_sup = 0; 1088 if (sp->cls1.classValid) 1089 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1090 if (sp->cls2.classValid) 1091 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1092 if (sp->cls3.classValid) 1093 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1094 if (sp->cls4.classValid) 1095 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1096 ndlp->nlp_maxframe = 1097 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1098 1099 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1100 if (!mbox) { 1101 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1102 "0133 PLOGI: no memory for reg_login " 1103 "Data: x%x x%x x%x x%x\n", 1104 ndlp->nlp_DID, ndlp->nlp_state, 1105 ndlp->nlp_flag, ndlp->nlp_rpi); 1106 goto out; 1107 } 1108 1109 lpfc_unreg_rpi(vport, ndlp); 1110 1111 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1112 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1113 switch (ndlp->nlp_DID) { 1114 case NameServer_DID: 1115 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1116 break; 1117 case FDMI_DID: 1118 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1119 break; 1120 default: 1121 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1122 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1123 } 1124 mbox->context2 = lpfc_nlp_get(ndlp); 1125 mbox->vport = vport; 1126 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1127 != MBX_NOT_FINISHED) { 1128 lpfc_nlp_set_state(vport, ndlp, 1129 NLP_STE_REG_LOGIN_ISSUE); 1130 return ndlp->nlp_state; 1131 } 1132 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1133 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1134 /* decrement node reference count to the failed mbox 1135 * command 1136 */ 1137 lpfc_nlp_put(ndlp); 1138 mp = (struct lpfc_dmabuf *) mbox->context1; 1139 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1140 kfree(mp); 1141 mempool_free(mbox, phba->mbox_mem_pool); 1142 1143 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1144 "0134 PLOGI: cannot issue reg_login " 1145 "Data: x%x x%x x%x x%x\n", 1146 ndlp->nlp_DID, ndlp->nlp_state, 1147 ndlp->nlp_flag, ndlp->nlp_rpi); 1148 } else { 1149 mempool_free(mbox, phba->mbox_mem_pool); 1150 1151 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1152 "0135 PLOGI: cannot format reg_login " 1153 "Data: x%x x%x x%x x%x\n", 1154 ndlp->nlp_DID, ndlp->nlp_state, 1155 ndlp->nlp_flag, ndlp->nlp_rpi); 1156 } 1157 1158 1159 out: 1160 if (ndlp->nlp_DID == NameServer_DID) { 1161 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1162 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1163 "0261 Cannot Register NameServer login\n"); 1164 } 1165 1166 /* 1167 ** In case the node reference counter does not go to zero, ensure that 1168 ** the stale state for the node is not processed. 1169 */ 1170 1171 ndlp->nlp_prev_state = ndlp->nlp_state; 1172 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1173 spin_lock_irq(shost->host_lock); 1174 ndlp->nlp_flag |= NLP_DEFER_RM; 1175 spin_unlock_irq(shost->host_lock); 1176 return NLP_STE_FREED_NODE; 1177 } 1178 1179 static uint32_t 1180 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1181 void *arg, uint32_t evt) 1182 { 1183 return ndlp->nlp_state; 1184 } 1185 1186 static uint32_t 1187 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1188 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1189 { 1190 struct lpfc_hba *phba; 1191 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1192 MAILBOX_t *mb = &pmb->u.mb; 1193 uint16_t rpi; 1194 1195 phba = vport->phba; 1196 /* Release the RPI */ 1197 if (!(phba->pport->load_flag & FC_UNLOADING) && 1198 !mb->mbxStatus) { 1199 rpi = pmb->u.mb.un.varWords[0]; 1200 lpfc_release_rpi(phba, vport, rpi); 1201 } 1202 return ndlp->nlp_state; 1203 } 1204 1205 static uint32_t 1206 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1207 void *arg, uint32_t evt) 1208 { 1209 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1210 1211 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1212 spin_lock_irq(shost->host_lock); 1213 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1214 spin_unlock_irq(shost->host_lock); 1215 return ndlp->nlp_state; 1216 } else { 1217 /* software abort outstanding PLOGI */ 1218 lpfc_els_abort(vport->phba, ndlp); 1219 1220 lpfc_drop_node(vport, ndlp); 1221 return NLP_STE_FREED_NODE; 1222 } 1223 } 1224 1225 static uint32_t 1226 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1227 struct lpfc_nodelist *ndlp, 1228 void *arg, 1229 uint32_t evt) 1230 { 1231 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1232 struct lpfc_hba *phba = vport->phba; 1233 1234 /* Don't do anything that will mess up processing of the 1235 * previous RSCN. 1236 */ 1237 if (vport->fc_flag & FC_RSCN_DEFERRED) 1238 return ndlp->nlp_state; 1239 1240 /* software abort outstanding PLOGI */ 1241 lpfc_els_abort(phba, ndlp); 1242 1243 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1244 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1245 spin_lock_irq(shost->host_lock); 1246 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1247 spin_unlock_irq(shost->host_lock); 1248 1249 return ndlp->nlp_state; 1250 } 1251 1252 static uint32_t 1253 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1254 void *arg, uint32_t evt) 1255 { 1256 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1257 struct lpfc_hba *phba = vport->phba; 1258 struct lpfc_iocbq *cmdiocb; 1259 1260 /* software abort outstanding ADISC */ 1261 lpfc_els_abort(phba, ndlp); 1262 1263 cmdiocb = (struct lpfc_iocbq *) arg; 1264 1265 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1266 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1267 spin_lock_irq(shost->host_lock); 1268 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1269 spin_unlock_irq(shost->host_lock); 1270 if (vport->num_disc_nodes) 1271 lpfc_more_adisc(vport); 1272 } 1273 return ndlp->nlp_state; 1274 } 1275 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1276 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1277 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1278 1279 return ndlp->nlp_state; 1280 } 1281 1282 static uint32_t 1283 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1284 void *arg, uint32_t evt) 1285 { 1286 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1287 1288 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1289 return ndlp->nlp_state; 1290 } 1291 1292 static uint32_t 1293 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1294 void *arg, uint32_t evt) 1295 { 1296 struct lpfc_hba *phba = vport->phba; 1297 struct lpfc_iocbq *cmdiocb; 1298 1299 cmdiocb = (struct lpfc_iocbq *) arg; 1300 1301 /* software abort outstanding ADISC */ 1302 lpfc_els_abort(phba, ndlp); 1303 1304 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1305 return ndlp->nlp_state; 1306 } 1307 1308 static uint32_t 1309 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1310 struct lpfc_nodelist *ndlp, 1311 void *arg, uint32_t evt) 1312 { 1313 struct lpfc_iocbq *cmdiocb; 1314 1315 cmdiocb = (struct lpfc_iocbq *) arg; 1316 1317 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1318 return ndlp->nlp_state; 1319 } 1320 1321 static uint32_t 1322 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1323 void *arg, uint32_t evt) 1324 { 1325 struct lpfc_iocbq *cmdiocb; 1326 1327 cmdiocb = (struct lpfc_iocbq *) arg; 1328 1329 /* Treat like rcv logo */ 1330 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1331 return ndlp->nlp_state; 1332 } 1333 1334 static uint32_t 1335 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1336 struct lpfc_nodelist *ndlp, 1337 void *arg, uint32_t evt) 1338 { 1339 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1340 struct lpfc_hba *phba = vport->phba; 1341 struct lpfc_iocbq *cmdiocb, *rspiocb; 1342 IOCB_t *irsp; 1343 ADISC *ap; 1344 int rc; 1345 1346 cmdiocb = (struct lpfc_iocbq *) arg; 1347 rspiocb = cmdiocb->context_un.rsp_iocb; 1348 1349 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1350 irsp = &rspiocb->iocb; 1351 1352 if ((irsp->ulpStatus) || 1353 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1354 /* 1 sec timeout */ 1355 mod_timer(&ndlp->nlp_delayfunc, 1356 jiffies + msecs_to_jiffies(1000)); 1357 spin_lock_irq(shost->host_lock); 1358 ndlp->nlp_flag |= NLP_DELAY_TMO; 1359 spin_unlock_irq(shost->host_lock); 1360 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1361 1362 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1363 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1364 1365 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1366 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1367 lpfc_unreg_rpi(vport, ndlp); 1368 return ndlp->nlp_state; 1369 } 1370 1371 if (phba->sli_rev == LPFC_SLI_REV4) { 1372 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1373 if (rc) { 1374 /* Stay in state and retry. */ 1375 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1376 return ndlp->nlp_state; 1377 } 1378 } 1379 1380 if (ndlp->nlp_type & NLP_FCP_TARGET) { 1381 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1382 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1383 } else { 1384 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1385 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1386 } 1387 1388 return ndlp->nlp_state; 1389 } 1390 1391 static uint32_t 1392 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1393 void *arg, uint32_t evt) 1394 { 1395 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1396 1397 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1398 spin_lock_irq(shost->host_lock); 1399 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1400 spin_unlock_irq(shost->host_lock); 1401 return ndlp->nlp_state; 1402 } else { 1403 /* software abort outstanding ADISC */ 1404 lpfc_els_abort(vport->phba, ndlp); 1405 1406 lpfc_drop_node(vport, ndlp); 1407 return NLP_STE_FREED_NODE; 1408 } 1409 } 1410 1411 static uint32_t 1412 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1413 struct lpfc_nodelist *ndlp, 1414 void *arg, 1415 uint32_t evt) 1416 { 1417 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1418 struct lpfc_hba *phba = vport->phba; 1419 1420 /* Don't do anything that will mess up processing of the 1421 * previous RSCN. 1422 */ 1423 if (vport->fc_flag & FC_RSCN_DEFERRED) 1424 return ndlp->nlp_state; 1425 1426 /* software abort outstanding ADISC */ 1427 lpfc_els_abort(phba, ndlp); 1428 1429 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1430 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1431 spin_lock_irq(shost->host_lock); 1432 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1433 spin_unlock_irq(shost->host_lock); 1434 lpfc_disc_set_adisc(vport, ndlp); 1435 return ndlp->nlp_state; 1436 } 1437 1438 static uint32_t 1439 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1440 struct lpfc_nodelist *ndlp, 1441 void *arg, 1442 uint32_t evt) 1443 { 1444 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1445 1446 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1447 return ndlp->nlp_state; 1448 } 1449 1450 static uint32_t 1451 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1452 struct lpfc_nodelist *ndlp, 1453 void *arg, 1454 uint32_t evt) 1455 { 1456 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1457 1458 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1459 return ndlp->nlp_state; 1460 } 1461 1462 static uint32_t 1463 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1464 struct lpfc_nodelist *ndlp, 1465 void *arg, 1466 uint32_t evt) 1467 { 1468 struct lpfc_hba *phba = vport->phba; 1469 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1470 LPFC_MBOXQ_t *mb; 1471 LPFC_MBOXQ_t *nextmb; 1472 struct lpfc_dmabuf *mp; 1473 1474 cmdiocb = (struct lpfc_iocbq *) arg; 1475 1476 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1477 if ((mb = phba->sli.mbox_active)) { 1478 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1479 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1480 lpfc_nlp_put(ndlp); 1481 mb->context2 = NULL; 1482 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1483 } 1484 } 1485 1486 spin_lock_irq(&phba->hbalock); 1487 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1488 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1489 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1490 mp = (struct lpfc_dmabuf *) (mb->context1); 1491 if (mp) { 1492 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1493 kfree(mp); 1494 } 1495 lpfc_nlp_put(ndlp); 1496 list_del(&mb->list); 1497 phba->sli.mboxq_cnt--; 1498 mempool_free(mb, phba->mbox_mem_pool); 1499 } 1500 } 1501 spin_unlock_irq(&phba->hbalock); 1502 1503 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1504 return ndlp->nlp_state; 1505 } 1506 1507 static uint32_t 1508 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1509 struct lpfc_nodelist *ndlp, 1510 void *arg, 1511 uint32_t evt) 1512 { 1513 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1514 1515 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1516 return ndlp->nlp_state; 1517 } 1518 1519 static uint32_t 1520 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1521 struct lpfc_nodelist *ndlp, 1522 void *arg, 1523 uint32_t evt) 1524 { 1525 struct lpfc_iocbq *cmdiocb; 1526 1527 cmdiocb = (struct lpfc_iocbq *) arg; 1528 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1529 return ndlp->nlp_state; 1530 } 1531 1532 static uint32_t 1533 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1534 struct lpfc_nodelist *ndlp, 1535 void *arg, 1536 uint32_t evt) 1537 { 1538 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1539 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1540 MAILBOX_t *mb = &pmb->u.mb; 1541 uint32_t did = mb->un.varWords[1]; 1542 1543 if (mb->mbxStatus) { 1544 /* RegLogin failed */ 1545 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1546 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1547 "x%x\n", 1548 did, mb->mbxStatus, vport->port_state, 1549 mb->un.varRegLogin.vpi, 1550 mb->un.varRegLogin.rpi); 1551 /* 1552 * If RegLogin failed due to lack of HBA resources do not 1553 * retry discovery. 1554 */ 1555 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1556 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1557 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1558 return ndlp->nlp_state; 1559 } 1560 1561 /* Put ndlp in npr state set plogi timer for 1 sec */ 1562 mod_timer(&ndlp->nlp_delayfunc, 1563 jiffies + msecs_to_jiffies(1000 * 1)); 1564 spin_lock_irq(shost->host_lock); 1565 ndlp->nlp_flag |= NLP_DELAY_TMO; 1566 spin_unlock_irq(shost->host_lock); 1567 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1568 1569 lpfc_issue_els_logo(vport, ndlp, 0); 1570 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1571 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1572 return ndlp->nlp_state; 1573 } 1574 1575 /* SLI4 ports have preallocated logical rpis. */ 1576 if (vport->phba->sli_rev < LPFC_SLI_REV4) 1577 ndlp->nlp_rpi = mb->un.varWords[0]; 1578 1579 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1580 1581 /* Only if we are not a fabric nport do we issue PRLI */ 1582 if (!(ndlp->nlp_type & NLP_FABRIC)) { 1583 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1584 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1585 lpfc_issue_els_prli(vport, ndlp, 0); 1586 } else { 1587 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1588 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1589 } 1590 return ndlp->nlp_state; 1591 } 1592 1593 static uint32_t 1594 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 1595 struct lpfc_nodelist *ndlp, 1596 void *arg, 1597 uint32_t evt) 1598 { 1599 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1600 1601 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1602 spin_lock_irq(shost->host_lock); 1603 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1604 spin_unlock_irq(shost->host_lock); 1605 return ndlp->nlp_state; 1606 } else { 1607 lpfc_drop_node(vport, ndlp); 1608 return NLP_STE_FREED_NODE; 1609 } 1610 } 1611 1612 static uint32_t 1613 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 1614 struct lpfc_nodelist *ndlp, 1615 void *arg, 1616 uint32_t evt) 1617 { 1618 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1619 1620 /* Don't do anything that will mess up processing of the 1621 * previous RSCN. 1622 */ 1623 if (vport->fc_flag & FC_RSCN_DEFERRED) 1624 return ndlp->nlp_state; 1625 1626 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1627 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1628 spin_lock_irq(shost->host_lock); 1629 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 1630 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1631 spin_unlock_irq(shost->host_lock); 1632 lpfc_disc_set_adisc(vport, ndlp); 1633 return ndlp->nlp_state; 1634 } 1635 1636 static uint32_t 1637 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1638 void *arg, uint32_t evt) 1639 { 1640 struct lpfc_iocbq *cmdiocb; 1641 1642 cmdiocb = (struct lpfc_iocbq *) arg; 1643 1644 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1645 return ndlp->nlp_state; 1646 } 1647 1648 static uint32_t 1649 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1650 void *arg, uint32_t evt) 1651 { 1652 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1653 1654 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1655 return ndlp->nlp_state; 1656 } 1657 1658 static uint32_t 1659 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1660 void *arg, uint32_t evt) 1661 { 1662 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1663 1664 /* Software abort outstanding PRLI before sending acc */ 1665 lpfc_els_abort(vport->phba, ndlp); 1666 1667 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1668 return ndlp->nlp_state; 1669 } 1670 1671 static uint32_t 1672 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1673 void *arg, uint32_t evt) 1674 { 1675 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1676 1677 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1678 return ndlp->nlp_state; 1679 } 1680 1681 /* This routine is envoked when we rcv a PRLO request from a nport 1682 * we are logged into. We should send back a PRLO rsp setting the 1683 * appropriate bits. 1684 * NEXT STATE = PRLI_ISSUE 1685 */ 1686 static uint32_t 1687 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1688 void *arg, uint32_t evt) 1689 { 1690 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1691 1692 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1693 return ndlp->nlp_state; 1694 } 1695 1696 static uint32_t 1697 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1698 void *arg, uint32_t evt) 1699 { 1700 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1701 struct lpfc_iocbq *cmdiocb, *rspiocb; 1702 struct lpfc_hba *phba = vport->phba; 1703 IOCB_t *irsp; 1704 PRLI *npr; 1705 1706 cmdiocb = (struct lpfc_iocbq *) arg; 1707 rspiocb = cmdiocb->context_un.rsp_iocb; 1708 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1709 1710 irsp = &rspiocb->iocb; 1711 if (irsp->ulpStatus) { 1712 if ((vport->port_type == LPFC_NPIV_PORT) && 1713 vport->cfg_restrict_login) { 1714 goto out; 1715 } 1716 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1717 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1718 return ndlp->nlp_state; 1719 } 1720 1721 /* Check out PRLI rsp */ 1722 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 1723 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 1724 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 1725 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) && 1726 (npr->prliType == PRLI_FCP_TYPE)) { 1727 if (npr->initiatorFunc) 1728 ndlp->nlp_type |= NLP_FCP_INITIATOR; 1729 if (npr->targetFunc) { 1730 ndlp->nlp_type |= NLP_FCP_TARGET; 1731 if (npr->writeXferRdyDis) 1732 ndlp->nlp_flag |= NLP_FIRSTBURST; 1733 } 1734 if (npr->Retry) 1735 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1736 } 1737 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 1738 (vport->port_type == LPFC_NPIV_PORT) && 1739 vport->cfg_restrict_login) { 1740 out: 1741 spin_lock_irq(shost->host_lock); 1742 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 1743 spin_unlock_irq(shost->host_lock); 1744 lpfc_issue_els_logo(vport, ndlp, 0); 1745 1746 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1747 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1748 return ndlp->nlp_state; 1749 } 1750 1751 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1752 if (ndlp->nlp_type & NLP_FCP_TARGET) 1753 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1754 else 1755 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1756 return ndlp->nlp_state; 1757 } 1758 1759 /*! lpfc_device_rm_prli_issue 1760 * 1761 * \pre 1762 * \post 1763 * \param phba 1764 * \param ndlp 1765 * \param arg 1766 * \param evt 1767 * \return uint32_t 1768 * 1769 * \b Description: 1770 * This routine is envoked when we a request to remove a nport we are in the 1771 * process of PRLIing. We should software abort outstanding prli, unreg 1772 * login, send a logout. We will change node state to UNUSED_NODE, put it 1773 * on plogi list so it can be freed when LOGO completes. 1774 * 1775 */ 1776 1777 static uint32_t 1778 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1779 void *arg, uint32_t evt) 1780 { 1781 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1782 1783 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1784 spin_lock_irq(shost->host_lock); 1785 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1786 spin_unlock_irq(shost->host_lock); 1787 return ndlp->nlp_state; 1788 } else { 1789 /* software abort outstanding PLOGI */ 1790 lpfc_els_abort(vport->phba, ndlp); 1791 1792 lpfc_drop_node(vport, ndlp); 1793 return NLP_STE_FREED_NODE; 1794 } 1795 } 1796 1797 1798 /*! lpfc_device_recov_prli_issue 1799 * 1800 * \pre 1801 * \post 1802 * \param phba 1803 * \param ndlp 1804 * \param arg 1805 * \param evt 1806 * \return uint32_t 1807 * 1808 * \b Description: 1809 * The routine is envoked when the state of a device is unknown, like 1810 * during a link down. We should remove the nodelist entry from the 1811 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 1812 * outstanding PRLI command, then free the node entry. 1813 */ 1814 static uint32_t 1815 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 1816 struct lpfc_nodelist *ndlp, 1817 void *arg, 1818 uint32_t evt) 1819 { 1820 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1821 struct lpfc_hba *phba = vport->phba; 1822 1823 /* Don't do anything that will mess up processing of the 1824 * previous RSCN. 1825 */ 1826 if (vport->fc_flag & FC_RSCN_DEFERRED) 1827 return ndlp->nlp_state; 1828 1829 /* software abort outstanding PRLI */ 1830 lpfc_els_abort(phba, ndlp); 1831 1832 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1833 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1834 spin_lock_irq(shost->host_lock); 1835 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1836 spin_unlock_irq(shost->host_lock); 1837 lpfc_disc_set_adisc(vport, ndlp); 1838 return ndlp->nlp_state; 1839 } 1840 1841 static uint32_t 1842 lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1843 void *arg, uint32_t evt) 1844 { 1845 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1846 struct ls_rjt stat; 1847 1848 memset(&stat, 0, sizeof(struct ls_rjt)); 1849 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1850 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1851 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1852 return ndlp->nlp_state; 1853 } 1854 1855 static uint32_t 1856 lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1857 void *arg, uint32_t evt) 1858 { 1859 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1860 struct ls_rjt stat; 1861 1862 memset(&stat, 0, sizeof(struct ls_rjt)); 1863 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1864 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1865 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1866 return ndlp->nlp_state; 1867 } 1868 1869 static uint32_t 1870 lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1871 void *arg, uint32_t evt) 1872 { 1873 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1874 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1875 1876 spin_lock_irq(shost->host_lock); 1877 ndlp->nlp_flag |= NLP_LOGO_ACC; 1878 spin_unlock_irq(shost->host_lock); 1879 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1880 return ndlp->nlp_state; 1881 } 1882 1883 static uint32_t 1884 lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1885 void *arg, uint32_t evt) 1886 { 1887 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1888 struct ls_rjt stat; 1889 1890 memset(&stat, 0, sizeof(struct ls_rjt)); 1891 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1892 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1893 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1894 return ndlp->nlp_state; 1895 } 1896 1897 static uint32_t 1898 lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1899 void *arg, uint32_t evt) 1900 { 1901 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 1902 struct ls_rjt stat; 1903 1904 memset(&stat, 0, sizeof(struct ls_rjt)); 1905 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1906 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1907 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1908 return ndlp->nlp_state; 1909 } 1910 1911 static uint32_t 1912 lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1913 void *arg, uint32_t evt) 1914 { 1915 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1916 1917 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 1918 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1919 spin_lock_irq(shost->host_lock); 1920 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1921 spin_unlock_irq(shost->host_lock); 1922 lpfc_disc_set_adisc(vport, ndlp); 1923 return ndlp->nlp_state; 1924 } 1925 1926 static uint32_t 1927 lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1928 void *arg, uint32_t evt) 1929 { 1930 /* 1931 * Take no action. If a LOGO is outstanding, then possibly DevLoss has 1932 * timed out and is calling for Device Remove. In this case, the LOGO 1933 * must be allowed to complete in state LOGO_ISSUE so that the rpi 1934 * and other NLP flags are correctly cleaned up. 1935 */ 1936 return ndlp->nlp_state; 1937 } 1938 1939 static uint32_t 1940 lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 1941 struct lpfc_nodelist *ndlp, 1942 void *arg, uint32_t evt) 1943 { 1944 /* 1945 * Device Recovery events have no meaning for a node with a LOGO 1946 * outstanding. The LOGO has to complete first and handle the 1947 * node from that point. 1948 */ 1949 return ndlp->nlp_state; 1950 } 1951 1952 static uint32_t 1953 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1954 void *arg, uint32_t evt) 1955 { 1956 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1957 1958 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1959 return ndlp->nlp_state; 1960 } 1961 1962 static uint32_t 1963 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1964 void *arg, uint32_t evt) 1965 { 1966 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1967 1968 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1969 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1970 return ndlp->nlp_state; 1971 } 1972 1973 static uint32_t 1974 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1975 void *arg, uint32_t evt) 1976 { 1977 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1978 1979 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1980 return ndlp->nlp_state; 1981 } 1982 1983 static uint32_t 1984 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1985 void *arg, uint32_t evt) 1986 { 1987 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1988 1989 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1990 return ndlp->nlp_state; 1991 } 1992 1993 static uint32_t 1994 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1995 void *arg, uint32_t evt) 1996 { 1997 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1998 1999 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2000 return ndlp->nlp_state; 2001 } 2002 2003 static uint32_t 2004 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2005 struct lpfc_nodelist *ndlp, 2006 void *arg, 2007 uint32_t evt) 2008 { 2009 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2010 2011 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2012 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2013 spin_lock_irq(shost->host_lock); 2014 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2015 spin_unlock_irq(shost->host_lock); 2016 lpfc_disc_set_adisc(vport, ndlp); 2017 2018 return ndlp->nlp_state; 2019 } 2020 2021 static uint32_t 2022 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2023 void *arg, uint32_t evt) 2024 { 2025 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2026 2027 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2028 return ndlp->nlp_state; 2029 } 2030 2031 static uint32_t 2032 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2033 void *arg, uint32_t evt) 2034 { 2035 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2036 2037 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2038 return ndlp->nlp_state; 2039 } 2040 2041 static uint32_t 2042 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2043 void *arg, uint32_t evt) 2044 { 2045 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2046 2047 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2048 return ndlp->nlp_state; 2049 } 2050 2051 static uint32_t 2052 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2053 struct lpfc_nodelist *ndlp, 2054 void *arg, uint32_t evt) 2055 { 2056 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2057 2058 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2059 return ndlp->nlp_state; 2060 } 2061 2062 static uint32_t 2063 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2064 void *arg, uint32_t evt) 2065 { 2066 struct lpfc_hba *phba = vport->phba; 2067 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2068 2069 /* flush the target */ 2070 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 2071 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2072 2073 /* Treat like rcv logo */ 2074 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2075 return ndlp->nlp_state; 2076 } 2077 2078 static uint32_t 2079 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2080 struct lpfc_nodelist *ndlp, 2081 void *arg, 2082 uint32_t evt) 2083 { 2084 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2085 2086 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2087 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2088 spin_lock_irq(shost->host_lock); 2089 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2090 spin_unlock_irq(shost->host_lock); 2091 lpfc_disc_set_adisc(vport, ndlp); 2092 return ndlp->nlp_state; 2093 } 2094 2095 static uint32_t 2096 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2097 void *arg, uint32_t evt) 2098 { 2099 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2100 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2101 2102 /* Ignore PLOGI if we have an outstanding LOGO */ 2103 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2104 return ndlp->nlp_state; 2105 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2106 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2107 spin_lock_irq(shost->host_lock); 2108 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2109 spin_unlock_irq(shost->host_lock); 2110 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2111 /* send PLOGI immediately, move to PLOGI issue state */ 2112 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2113 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2114 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2115 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2116 } 2117 } 2118 return ndlp->nlp_state; 2119 } 2120 2121 static uint32_t 2122 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2123 void *arg, uint32_t evt) 2124 { 2125 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2126 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2127 struct ls_rjt stat; 2128 2129 memset(&stat, 0, sizeof (struct ls_rjt)); 2130 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2131 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2132 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2133 2134 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2135 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2136 spin_lock_irq(shost->host_lock); 2137 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2138 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2139 spin_unlock_irq(shost->host_lock); 2140 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2141 lpfc_issue_els_adisc(vport, ndlp, 0); 2142 } else { 2143 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2144 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2145 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2146 } 2147 } 2148 return ndlp->nlp_state; 2149 } 2150 2151 static uint32_t 2152 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2153 void *arg, uint32_t evt) 2154 { 2155 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2156 2157 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2158 return ndlp->nlp_state; 2159 } 2160 2161 static uint32_t 2162 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2163 void *arg, uint32_t evt) 2164 { 2165 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2166 2167 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2168 /* 2169 * Do not start discovery if discovery is about to start 2170 * or discovery in progress for this node. Starting discovery 2171 * here will affect the counting of discovery threads. 2172 */ 2173 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2174 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2175 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2176 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2177 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2178 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2179 lpfc_issue_els_adisc(vport, ndlp, 0); 2180 } else { 2181 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2182 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2183 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2184 } 2185 } 2186 return ndlp->nlp_state; 2187 } 2188 2189 static uint32_t 2190 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2191 void *arg, uint32_t evt) 2192 { 2193 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2194 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2195 2196 spin_lock_irq(shost->host_lock); 2197 ndlp->nlp_flag |= NLP_LOGO_ACC; 2198 spin_unlock_irq(shost->host_lock); 2199 2200 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2201 2202 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2203 mod_timer(&ndlp->nlp_delayfunc, 2204 jiffies + msecs_to_jiffies(1000 * 1)); 2205 spin_lock_irq(shost->host_lock); 2206 ndlp->nlp_flag |= NLP_DELAY_TMO; 2207 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2208 spin_unlock_irq(shost->host_lock); 2209 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2210 } else { 2211 spin_lock_irq(shost->host_lock); 2212 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2213 spin_unlock_irq(shost->host_lock); 2214 } 2215 return ndlp->nlp_state; 2216 } 2217 2218 static uint32_t 2219 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2220 void *arg, uint32_t evt) 2221 { 2222 struct lpfc_iocbq *cmdiocb, *rspiocb; 2223 IOCB_t *irsp; 2224 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2225 2226 cmdiocb = (struct lpfc_iocbq *) arg; 2227 rspiocb = cmdiocb->context_un.rsp_iocb; 2228 2229 irsp = &rspiocb->iocb; 2230 if (irsp->ulpStatus) { 2231 spin_lock_irq(shost->host_lock); 2232 ndlp->nlp_flag |= NLP_DEFER_RM; 2233 spin_unlock_irq(shost->host_lock); 2234 return NLP_STE_FREED_NODE; 2235 } 2236 return ndlp->nlp_state; 2237 } 2238 2239 static uint32_t 2240 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2241 void *arg, uint32_t evt) 2242 { 2243 struct lpfc_iocbq *cmdiocb, *rspiocb; 2244 IOCB_t *irsp; 2245 2246 cmdiocb = (struct lpfc_iocbq *) arg; 2247 rspiocb = cmdiocb->context_un.rsp_iocb; 2248 2249 irsp = &rspiocb->iocb; 2250 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2251 lpfc_drop_node(vport, ndlp); 2252 return NLP_STE_FREED_NODE; 2253 } 2254 return ndlp->nlp_state; 2255 } 2256 2257 static uint32_t 2258 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2259 void *arg, uint32_t evt) 2260 { 2261 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2262 2263 /* For the fabric port just clear the fc flags. */ 2264 if (ndlp->nlp_DID == Fabric_DID) { 2265 spin_lock_irq(shost->host_lock); 2266 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2267 spin_unlock_irq(shost->host_lock); 2268 } 2269 lpfc_unreg_rpi(vport, ndlp); 2270 return ndlp->nlp_state; 2271 } 2272 2273 static uint32_t 2274 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2275 void *arg, uint32_t evt) 2276 { 2277 struct lpfc_iocbq *cmdiocb, *rspiocb; 2278 IOCB_t *irsp; 2279 2280 cmdiocb = (struct lpfc_iocbq *) arg; 2281 rspiocb = cmdiocb->context_un.rsp_iocb; 2282 2283 irsp = &rspiocb->iocb; 2284 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2285 lpfc_drop_node(vport, ndlp); 2286 return NLP_STE_FREED_NODE; 2287 } 2288 return ndlp->nlp_state; 2289 } 2290 2291 static uint32_t 2292 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2293 struct lpfc_nodelist *ndlp, 2294 void *arg, uint32_t evt) 2295 { 2296 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2297 MAILBOX_t *mb = &pmb->u.mb; 2298 2299 if (!mb->mbxStatus) { 2300 /* SLI4 ports have preallocated logical rpis. */ 2301 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2302 ndlp->nlp_rpi = mb->un.varWords[0]; 2303 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2304 } else { 2305 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2306 lpfc_drop_node(vport, ndlp); 2307 return NLP_STE_FREED_NODE; 2308 } 2309 } 2310 return ndlp->nlp_state; 2311 } 2312 2313 static uint32_t 2314 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2315 void *arg, uint32_t evt) 2316 { 2317 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2318 2319 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2320 spin_lock_irq(shost->host_lock); 2321 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2322 spin_unlock_irq(shost->host_lock); 2323 return ndlp->nlp_state; 2324 } 2325 lpfc_drop_node(vport, ndlp); 2326 return NLP_STE_FREED_NODE; 2327 } 2328 2329 static uint32_t 2330 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2331 void *arg, uint32_t evt) 2332 { 2333 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2334 2335 /* Don't do anything that will mess up processing of the 2336 * previous RSCN. 2337 */ 2338 if (vport->fc_flag & FC_RSCN_DEFERRED) 2339 return ndlp->nlp_state; 2340 2341 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2342 spin_lock_irq(shost->host_lock); 2343 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2344 spin_unlock_irq(shost->host_lock); 2345 return ndlp->nlp_state; 2346 } 2347 2348 2349 /* This next section defines the NPort Discovery State Machine */ 2350 2351 /* There are 4 different double linked lists nodelist entries can reside on. 2352 * The plogi list and adisc list are used when Link Up discovery or RSCN 2353 * processing is needed. Each list holds the nodes that we will send PLOGI 2354 * or ADISC on. These lists will keep track of what nodes will be effected 2355 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2356 * The unmapped_list will contain all nodes that we have successfully logged 2357 * into at the Fibre Channel level. The mapped_list will contain all nodes 2358 * that are mapped FCP targets. 2359 */ 2360 /* 2361 * The bind list is a list of undiscovered (potentially non-existent) nodes 2362 * that we have saved binding information on. This information is used when 2363 * nodes transition from the unmapped to the mapped list. 2364 */ 2365 /* For UNUSED_NODE state, the node has just been allocated . 2366 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2367 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2368 * and put on the unmapped list. For ADISC processing, the node is taken off 2369 * the ADISC list and placed on either the mapped or unmapped list (depending 2370 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2371 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2372 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2373 * node, the node is taken off the unmapped list. The binding list is checked 2374 * for a valid binding, or a binding is automatically assigned. If binding 2375 * assignment is unsuccessful, the node is left on the unmapped list. If 2376 * binding assignment is successful, the associated binding list entry (if 2377 * any) is removed, and the node is placed on the mapped list. 2378 */ 2379 /* 2380 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2381 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2382 * expire, all effected nodes will receive a DEVICE_RM event. 2383 */ 2384 /* 2385 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2386 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2387 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2388 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2389 * we will first process the ADISC list. 32 entries are processed initially and 2390 * ADISC is initited for each one. Completions / Events for each node are 2391 * funnelled thru the state machine. As each node finishes ADISC processing, it 2392 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2393 * waiting, and the ADISC list count is identically 0, then we are done. For 2394 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2395 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2396 * list. 32 entries are processed initially and PLOGI is initited for each one. 2397 * Completions / Events for each node are funnelled thru the state machine. As 2398 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2399 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2400 * indentically 0, then we are done. We have now completed discovery / RSCN 2401 * handling. Upon completion, ALL nodes should be on either the mapped or 2402 * unmapped lists. 2403 */ 2404 2405 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2406 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2407 /* Action routine Event Current State */ 2408 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2409 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2410 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2411 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2412 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2413 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2414 lpfc_disc_illegal, /* CMPL_PLOGI */ 2415 lpfc_disc_illegal, /* CMPL_PRLI */ 2416 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2417 lpfc_disc_illegal, /* CMPL_ADISC */ 2418 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2419 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2420 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 2421 2422 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2423 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2424 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2425 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2426 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2427 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2428 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2429 lpfc_disc_illegal, /* CMPL_PRLI */ 2430 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2431 lpfc_disc_illegal, /* CMPL_ADISC */ 2432 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2433 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2434 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2435 2436 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2437 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2438 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2439 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2440 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2441 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2442 lpfc_disc_illegal, /* CMPL_PLOGI */ 2443 lpfc_disc_illegal, /* CMPL_PRLI */ 2444 lpfc_disc_illegal, /* CMPL_LOGO */ 2445 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2446 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2447 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2448 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2449 2450 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2451 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2452 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2453 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2454 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2455 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2456 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2457 lpfc_disc_illegal, /* CMPL_PRLI */ 2458 lpfc_disc_illegal, /* CMPL_LOGO */ 2459 lpfc_disc_illegal, /* CMPL_ADISC */ 2460 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2461 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2462 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2463 2464 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 2465 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 2466 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 2467 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 2468 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 2469 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 2470 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2471 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 2472 lpfc_disc_illegal, /* CMPL_LOGO */ 2473 lpfc_disc_illegal, /* CMPL_ADISC */ 2474 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2475 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 2476 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 2477 2478 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 2479 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 2480 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 2481 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 2482 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 2483 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 2484 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2485 lpfc_disc_illegal, /* CMPL_PRLI */ 2486 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 2487 lpfc_disc_illegal, /* CMPL_ADISC */ 2488 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2489 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 2490 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 2491 2492 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 2493 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 2494 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 2495 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 2496 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 2497 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 2498 lpfc_disc_illegal, /* CMPL_PLOGI */ 2499 lpfc_disc_illegal, /* CMPL_PRLI */ 2500 lpfc_disc_illegal, /* CMPL_LOGO */ 2501 lpfc_disc_illegal, /* CMPL_ADISC */ 2502 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2503 lpfc_disc_illegal, /* DEVICE_RM */ 2504 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 2505 2506 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 2507 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 2508 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 2509 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 2510 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 2511 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 2512 lpfc_disc_illegal, /* CMPL_PLOGI */ 2513 lpfc_disc_illegal, /* CMPL_PRLI */ 2514 lpfc_disc_illegal, /* CMPL_LOGO */ 2515 lpfc_disc_illegal, /* CMPL_ADISC */ 2516 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2517 lpfc_disc_illegal, /* DEVICE_RM */ 2518 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 2519 2520 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 2521 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 2522 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 2523 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 2524 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 2525 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 2526 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 2527 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 2528 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 2529 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 2530 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 2531 lpfc_device_rm_npr_node, /* DEVICE_RM */ 2532 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 2533 }; 2534 2535 int 2536 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2537 void *arg, uint32_t evt) 2538 { 2539 uint32_t cur_state, rc; 2540 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 2541 uint32_t); 2542 uint32_t got_ndlp = 0; 2543 2544 if (lpfc_nlp_get(ndlp)) 2545 got_ndlp = 1; 2546 2547 cur_state = ndlp->nlp_state; 2548 2549 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 2550 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2551 "0211 DSM in event x%x on NPort x%x in " 2552 "state %d Data: x%x\n", 2553 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag); 2554 2555 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2556 "DSM in: evt:%d ste:%d did:x%x", 2557 evt, cur_state, ndlp->nlp_DID); 2558 2559 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 2560 rc = (func) (vport, ndlp, arg, evt); 2561 2562 /* DSM out state <rc> on NPort <nlp_DID> */ 2563 if (got_ndlp) { 2564 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2565 "0212 DSM out state %d on NPort x%x Data: x%x\n", 2566 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2567 2568 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2569 "DSM out: ste:%d did:x%x flg:x%x", 2570 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2571 /* Decrement the ndlp reference count held for this function */ 2572 lpfc_nlp_put(ndlp); 2573 } else { 2574 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2575 "0213 DSM out state %d on NPort free\n", rc); 2576 2577 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2578 "DSM out: ste:%d did:x%x flg:x%x", 2579 rc, 0, 0); 2580 } 2581 2582 return rc; 2583 } 2584