/drivers/scsi/lpfc/lpfc_nportdisc.c
C | 3148 lines | 2316 code | 380 blank | 452 comment | 360 complexity | 5452b82a4b12fa7b6c6ff53dbee425c0 MD5 | raw file
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1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24#include <linux/blkdev.h> 25#include <linux/pci.h> 26#include <linux/slab.h> 27#include <linux/interrupt.h> 28 29#include <scsi/scsi.h> 30#include <scsi/scsi_device.h> 31#include <scsi/scsi_host.h> 32#include <scsi/scsi_transport_fc.h> 33#include <scsi/fc/fc_fs.h> 34 35#include <linux/nvme-fc-driver.h> 36 37#include "lpfc_hw4.h" 38#include "lpfc_hw.h" 39#include "lpfc_sli.h" 40#include "lpfc_sli4.h" 41#include "lpfc_nl.h" 42#include "lpfc_disc.h" 43#include "lpfc.h" 44#include "lpfc_scsi.h" 45#include "lpfc_nvme.h" 46#include "lpfc_logmsg.h" 47#include "lpfc_crtn.h" 48#include "lpfc_vport.h" 49#include "lpfc_debugfs.h" 50 51 52/* Called to verify a rcv'ed ADISC was intended for us. */ 53static int 54lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 55 struct lpfc_name *nn, struct lpfc_name *pn) 56{ 57 /* First, we MUST have a RPI registered */ 58 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 59 return 0; 60 61 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 62 * table entry for that node. 63 */ 64 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 65 return 0; 66 67 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 68 return 0; 69 70 /* we match, return success */ 71 return 1; 72} 73 74int 75lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 76 struct serv_parm *sp, uint32_t class, int flogi) 77{ 78 volatile struct serv_parm *hsp = &vport->fc_sparam; 79 uint16_t hsp_value, ssp_value = 0; 80 81 /* 82 * The receive data field size and buffer-to-buffer receive data field 83 * size entries are 16 bits but are represented as two 8-bit fields in 84 * the driver data structure to account for rsvd bits and other control 85 * bits. Reconstruct and compare the fields as a 16-bit values before 86 * correcting the byte values. 87 */ 88 if (sp->cls1.classValid) { 89 if (!flogi) { 90 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 91 hsp->cls1.rcvDataSizeLsb); 92 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 93 sp->cls1.rcvDataSizeLsb); 94 if (!ssp_value) 95 goto bad_service_param; 96 if (ssp_value > hsp_value) { 97 sp->cls1.rcvDataSizeLsb = 98 hsp->cls1.rcvDataSizeLsb; 99 sp->cls1.rcvDataSizeMsb = 100 hsp->cls1.rcvDataSizeMsb; 101 } 102 } 103 } else if (class == CLASS1) 104 goto bad_service_param; 105 if (sp->cls2.classValid) { 106 if (!flogi) { 107 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 108 hsp->cls2.rcvDataSizeLsb); 109 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 110 sp->cls2.rcvDataSizeLsb); 111 if (!ssp_value) 112 goto bad_service_param; 113 if (ssp_value > hsp_value) { 114 sp->cls2.rcvDataSizeLsb = 115 hsp->cls2.rcvDataSizeLsb; 116 sp->cls2.rcvDataSizeMsb = 117 hsp->cls2.rcvDataSizeMsb; 118 } 119 } 120 } else if (class == CLASS2) 121 goto bad_service_param; 122 if (sp->cls3.classValid) { 123 if (!flogi) { 124 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 125 hsp->cls3.rcvDataSizeLsb); 126 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 127 sp->cls3.rcvDataSizeLsb); 128 if (!ssp_value) 129 goto bad_service_param; 130 if (ssp_value > hsp_value) { 131 sp->cls3.rcvDataSizeLsb = 132 hsp->cls3.rcvDataSizeLsb; 133 sp->cls3.rcvDataSizeMsb = 134 hsp->cls3.rcvDataSizeMsb; 135 } 136 } 137 } else if (class == CLASS3) 138 goto bad_service_param; 139 140 /* 141 * Preserve the upper four bits of the MSB from the PLOGI response. 142 * These bits contain the Buffer-to-Buffer State Change Number 143 * from the target and need to be passed to the FW. 144 */ 145 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 146 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 147 if (ssp_value > hsp_value) { 148 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 149 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 150 (hsp->cmn.bbRcvSizeMsb & 0x0F); 151 } 152 153 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 154 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 155 return 1; 156bad_service_param: 157 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 158 "0207 Device %x " 159 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 160 "invalid service parameters. Ignoring device.\n", 161 ndlp->nlp_DID, 162 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 163 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 164 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 165 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 166 return 0; 167} 168 169static void * 170lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 171 struct lpfc_iocbq *rspiocb) 172{ 173 struct lpfc_dmabuf *pcmd, *prsp; 174 uint32_t *lp; 175 void *ptr = NULL; 176 IOCB_t *irsp; 177 178 irsp = &rspiocb->iocb; 179 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 180 181 /* For lpfc_els_abort, context2 could be zero'ed to delay 182 * freeing associated memory till after ABTS completes. 183 */ 184 if (pcmd) { 185 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 186 list); 187 if (prsp) { 188 lp = (uint32_t *) prsp->virt; 189 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 190 } 191 } else { 192 /* Force ulpStatus error since we are returning NULL ptr */ 193 if (!(irsp->ulpStatus)) { 194 irsp->ulpStatus = IOSTAT_LOCAL_REJECT; 195 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED; 196 } 197 ptr = NULL; 198 } 199 return ptr; 200} 201 202 203 204/* 205 * Free resources / clean up outstanding I/Os 206 * associated with a LPFC_NODELIST entry. This 207 * routine effectively results in a "software abort". 208 */ 209void 210lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 211{ 212 LIST_HEAD(abort_list); 213 struct lpfc_sli_ring *pring; 214 struct lpfc_iocbq *iocb, *next_iocb; 215 216 pring = lpfc_phba_elsring(phba); 217 218 /* In case of error recovery path, we might have a NULL pring here */ 219 if (unlikely(!pring)) 220 return; 221 222 /* Abort outstanding I/O on NPort <nlp_DID> */ 223 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 224 "2819 Abort outstanding I/O on NPort x%x " 225 "Data: x%x x%x x%x\n", 226 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 227 ndlp->nlp_rpi); 228 /* Clean up all fabric IOs first.*/ 229 lpfc_fabric_abort_nport(ndlp); 230 231 /* 232 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 233 * of all ELS IOs that need an ABTS. The IOs need to stay on the 234 * txcmplq so that the abort operation completes them successfully. 235 */ 236 spin_lock_irq(&phba->hbalock); 237 if (phba->sli_rev == LPFC_SLI_REV4) 238 spin_lock(&pring->ring_lock); 239 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 240 /* Add to abort_list on on NDLP match. */ 241 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 242 list_add_tail(&iocb->dlist, &abort_list); 243 } 244 if (phba->sli_rev == LPFC_SLI_REV4) 245 spin_unlock(&pring->ring_lock); 246 spin_unlock_irq(&phba->hbalock); 247 248 /* Abort the targeted IOs and remove them from the abort list. */ 249 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 250 spin_lock_irq(&phba->hbalock); 251 list_del_init(&iocb->dlist); 252 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 253 spin_unlock_irq(&phba->hbalock); 254 } 255 256 INIT_LIST_HEAD(&abort_list); 257 258 /* Now process the txq */ 259 spin_lock_irq(&phba->hbalock); 260 if (phba->sli_rev == LPFC_SLI_REV4) 261 spin_lock(&pring->ring_lock); 262 263 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 264 /* Check to see if iocb matches the nport we are looking for */ 265 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 266 list_del_init(&iocb->list); 267 list_add_tail(&iocb->list, &abort_list); 268 } 269 } 270 271 if (phba->sli_rev == LPFC_SLI_REV4) 272 spin_unlock(&pring->ring_lock); 273 spin_unlock_irq(&phba->hbalock); 274 275 /* Cancel all the IOCBs from the completions list */ 276 lpfc_sli_cancel_iocbs(phba, &abort_list, 277 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 278 279 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 280} 281 282/* lpfc_defer_pt2pt_acc - Complete SLI3 pt2pt processing on link up 283 * @phba: pointer to lpfc hba data structure. 284 * @link_mbox: pointer to CONFIG_LINK mailbox object 285 * 286 * This routine is only called if we are SLI3, direct connect pt2pt 287 * mode and the remote NPort issues the PLOGI after link up. 288 */ 289static void 290lpfc_defer_pt2pt_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *link_mbox) 291{ 292 LPFC_MBOXQ_t *login_mbox; 293 MAILBOX_t *mb = &link_mbox->u.mb; 294 struct lpfc_iocbq *save_iocb; 295 struct lpfc_nodelist *ndlp; 296 int rc; 297 298 ndlp = link_mbox->ctx_ndlp; 299 login_mbox = link_mbox->context3; 300 save_iocb = login_mbox->context3; 301 link_mbox->context3 = NULL; 302 login_mbox->context3 = NULL; 303 304 /* Check for CONFIG_LINK error */ 305 if (mb->mbxStatus) { 306 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 307 "4575 CONFIG_LINK fails pt2pt discovery: %x\n", 308 mb->mbxStatus); 309 mempool_free(login_mbox, phba->mbox_mem_pool); 310 mempool_free(link_mbox, phba->mbox_mem_pool); 311 kfree(save_iocb); 312 return; 313 } 314 315 /* Now that CONFIG_LINK completed, and our SID is configured, 316 * we can now proceed with sending the PLOGI ACC. 317 */ 318 rc = lpfc_els_rsp_acc(link_mbox->vport, ELS_CMD_PLOGI, 319 save_iocb, ndlp, login_mbox); 320 if (rc) { 321 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 322 "4576 PLOGI ACC fails pt2pt discovery: %x\n", 323 rc); 324 mempool_free(login_mbox, phba->mbox_mem_pool); 325 } 326 327 mempool_free(link_mbox, phba->mbox_mem_pool); 328 kfree(save_iocb); 329} 330 331/** 332 * lpfc_defer_tgt_acc - Progress SLI4 target rcv PLOGI handler 333 * @phba: Pointer to HBA context object. 334 * @pmb: Pointer to mailbox object. 335 * 336 * This function provides the unreg rpi mailbox completion handler for a tgt. 337 * The routine frees the memory resources associated with the completed 338 * mailbox command and transmits the ELS ACC. 339 * 340 * This routine is only called if we are SLI4, acting in target 341 * mode and the remote NPort issues the PLOGI after link up. 342 **/ 343static void 344lpfc_defer_acc_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 345{ 346 struct lpfc_vport *vport = pmb->vport; 347 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 348 LPFC_MBOXQ_t *mbox = pmb->context3; 349 struct lpfc_iocbq *piocb = NULL; 350 int rc; 351 352 if (mbox) { 353 pmb->context3 = NULL; 354 piocb = mbox->context3; 355 mbox->context3 = NULL; 356 } 357 358 /* 359 * Complete the unreg rpi mbx request, and update flags. 360 * This will also restart any deferred events. 361 */ 362 lpfc_nlp_get(ndlp); 363 lpfc_sli4_unreg_rpi_cmpl_clr(phba, pmb); 364 365 if (!piocb) { 366 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY | LOG_ELS, 367 "4578 PLOGI ACC fail\n"); 368 if (mbox) 369 mempool_free(mbox, phba->mbox_mem_pool); 370 goto out; 371 } 372 373 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, piocb, ndlp, mbox); 374 if (rc) { 375 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY | LOG_ELS, 376 "4579 PLOGI ACC fail %x\n", rc); 377 if (mbox) 378 mempool_free(mbox, phba->mbox_mem_pool); 379 } 380 kfree(piocb); 381out: 382 lpfc_nlp_put(ndlp); 383} 384 385static int 386lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 387 struct lpfc_iocbq *cmdiocb) 388{ 389 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 390 struct lpfc_hba *phba = vport->phba; 391 struct lpfc_dmabuf *pcmd; 392 uint64_t nlp_portwwn = 0; 393 uint32_t *lp; 394 IOCB_t *icmd; 395 struct serv_parm *sp; 396 uint32_t ed_tov; 397 LPFC_MBOXQ_t *link_mbox; 398 LPFC_MBOXQ_t *login_mbox; 399 struct lpfc_iocbq *save_iocb; 400 struct ls_rjt stat; 401 uint32_t vid, flag; 402 u16 rpi; 403 int rc, defer_acc; 404 405 memset(&stat, 0, sizeof (struct ls_rjt)); 406 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 407 lp = (uint32_t *) pcmd->virt; 408 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 409 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 410 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 411 "0140 PLOGI Reject: invalid nname\n"); 412 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 413 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 414 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 415 NULL); 416 return 0; 417 } 418 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 419 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 420 "0141 PLOGI Reject: invalid pname\n"); 421 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 422 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 423 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 424 NULL); 425 return 0; 426 } 427 428 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 429 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 430 /* Reject this request because invalid parameters */ 431 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 432 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 433 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 434 NULL); 435 return 0; 436 } 437 icmd = &cmdiocb->iocb; 438 439 /* PLOGI chkparm OK */ 440 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 441 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 442 "x%x x%x x%x\n", 443 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 444 ndlp->nlp_rpi, vport->port_state, 445 vport->fc_flag); 446 447 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 448 ndlp->nlp_fcp_info |= CLASS2; 449 else 450 ndlp->nlp_fcp_info |= CLASS3; 451 452 defer_acc = 0; 453 ndlp->nlp_class_sup = 0; 454 if (sp->cls1.classValid) 455 ndlp->nlp_class_sup |= FC_COS_CLASS1; 456 if (sp->cls2.classValid) 457 ndlp->nlp_class_sup |= FC_COS_CLASS2; 458 if (sp->cls3.classValid) 459 ndlp->nlp_class_sup |= FC_COS_CLASS3; 460 if (sp->cls4.classValid) 461 ndlp->nlp_class_sup |= FC_COS_CLASS4; 462 ndlp->nlp_maxframe = 463 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 464 /* if already logged in, do implicit logout */ 465 switch (ndlp->nlp_state) { 466 case NLP_STE_NPR_NODE: 467 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 468 break; 469 /* fall through */ 470 case NLP_STE_REG_LOGIN_ISSUE: 471 case NLP_STE_PRLI_ISSUE: 472 case NLP_STE_UNMAPPED_NODE: 473 case NLP_STE_MAPPED_NODE: 474 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 475 * For target mode, execute implicit logo. 476 * Fabric nodes go into NPR. 477 */ 478 if (!(ndlp->nlp_type & NLP_FABRIC) && 479 !(phba->nvmet_support)) { 480 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 481 ndlp, NULL); 482 return 1; 483 } 484 if (nlp_portwwn != 0 && 485 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 486 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 487 "0143 PLOGI recv'd from DID: x%x " 488 "WWPN changed: old %llx new %llx\n", 489 ndlp->nlp_DID, 490 (unsigned long long)nlp_portwwn, 491 (unsigned long long) 492 wwn_to_u64(sp->portName.u.wwn)); 493 494 ndlp->nlp_prev_state = ndlp->nlp_state; 495 /* rport needs to be unregistered first */ 496 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 497 break; 498 } 499 500 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 501 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 502 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 503 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 504 505 login_mbox = NULL; 506 link_mbox = NULL; 507 save_iocb = NULL; 508 509 /* Check for Nport to NPort pt2pt protocol */ 510 if ((vport->fc_flag & FC_PT2PT) && 511 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 512 /* rcv'ed PLOGI decides what our NPortId will be */ 513 vport->fc_myDID = icmd->un.rcvels.parmRo; 514 515 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 516 if (sp->cmn.edtovResolution) { 517 /* E_D_TOV ticks are in nanoseconds */ 518 ed_tov = (phba->fc_edtov + 999999) / 1000000; 519 } 520 521 /* 522 * For pt-to-pt, use the larger EDTOV 523 * RATOV = 2 * EDTOV 524 */ 525 if (ed_tov > phba->fc_edtov) 526 phba->fc_edtov = ed_tov; 527 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 528 529 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 530 531 /* Issue config_link / reg_vfi to account for updated TOV's */ 532 533 if (phba->sli_rev == LPFC_SLI_REV4) 534 lpfc_issue_reg_vfi(vport); 535 else { 536 defer_acc = 1; 537 link_mbox = mempool_alloc(phba->mbox_mem_pool, 538 GFP_KERNEL); 539 if (!link_mbox) 540 goto out; 541 lpfc_config_link(phba, link_mbox); 542 link_mbox->mbox_cmpl = lpfc_defer_pt2pt_acc; 543 link_mbox->vport = vport; 544 link_mbox->ctx_ndlp = ndlp; 545 546 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 547 if (!save_iocb) 548 goto out; 549 /* Save info from cmd IOCB used in rsp */ 550 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 551 sizeof(struct lpfc_iocbq)); 552 } 553 554 lpfc_can_disctmo(vport); 555 } 556 557 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 558 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 559 sp->cmn.valid_vendor_ver_level) { 560 vid = be32_to_cpu(sp->un.vv.vid); 561 flag = be32_to_cpu(sp->un.vv.flags); 562 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 563 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 564 } 565 566 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 567 if (!login_mbox) 568 goto out; 569 570 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 571 if (phba->nvmet_support && !defer_acc) { 572 link_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 573 if (!link_mbox) 574 goto out; 575 576 /* As unique identifiers such as iotag would be overwritten 577 * with those from the cmdiocb, allocate separate temporary 578 * storage for the copy. 579 */ 580 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 581 if (!save_iocb) 582 goto out; 583 584 /* Unreg RPI is required for SLI4. */ 585 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 586 lpfc_unreg_login(phba, vport->vpi, rpi, link_mbox); 587 link_mbox->vport = vport; 588 link_mbox->ctx_ndlp = ndlp; 589 link_mbox->mbox_cmpl = lpfc_defer_acc_rsp; 590 591 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 592 (!(vport->fc_flag & FC_OFFLINE_MODE))) 593 ndlp->nlp_flag |= NLP_UNREG_INP; 594 595 /* Save info from cmd IOCB used in rsp */ 596 memcpy(save_iocb, cmdiocb, sizeof(*save_iocb)); 597 598 /* Delay sending ACC till unreg RPI completes. */ 599 defer_acc = 1; 600 } else if (phba->sli_rev == LPFC_SLI_REV4) 601 lpfc_unreg_rpi(vport, ndlp); 602 603 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID, 604 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 605 if (rc) 606 goto out; 607 608 /* ACC PLOGI rsp command needs to execute first, 609 * queue this login_mbox command to be processed later. 610 */ 611 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 612 /* 613 * login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp) deferred until mailbox 614 * command issued in lpfc_cmpl_els_acc(). 615 */ 616 login_mbox->vport = vport; 617 spin_lock_irq(shost->host_lock); 618 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 619 spin_unlock_irq(shost->host_lock); 620 621 /* 622 * If there is an outstanding PLOGI issued, abort it before 623 * sending ACC rsp for received PLOGI. If pending plogi 624 * is not canceled here, the plogi will be rejected by 625 * remote port and will be retried. On a configuration with 626 * single discovery thread, this will cause a huge delay in 627 * discovery. Also this will cause multiple state machines 628 * running in parallel for this node. 629 * This only applies to a fabric environment. 630 */ 631 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 632 (vport->fc_flag & FC_FABRIC)) { 633 /* software abort outstanding PLOGI */ 634 lpfc_els_abort(phba, ndlp); 635 } 636 637 if ((vport->port_type == LPFC_NPIV_PORT && 638 vport->cfg_restrict_login)) { 639 640 /* no deferred ACC */ 641 kfree(save_iocb); 642 643 /* In order to preserve RPIs, we want to cleanup 644 * the default RPI the firmware created to rcv 645 * this ELS request. The only way to do this is 646 * to register, then unregister the RPI. 647 */ 648 spin_lock_irq(shost->host_lock); 649 ndlp->nlp_flag |= NLP_RM_DFLT_RPI; 650 spin_unlock_irq(shost->host_lock); 651 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 652 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 653 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 654 ndlp, login_mbox); 655 if (rc) 656 mempool_free(login_mbox, phba->mbox_mem_pool); 657 return 1; 658 } 659 if (defer_acc) { 660 /* So the order here should be: 661 * SLI3 pt2pt 662 * Issue CONFIG_LINK mbox 663 * CONFIG_LINK cmpl 664 * SLI4 tgt 665 * Issue UNREG RPI mbx 666 * UNREG RPI cmpl 667 * Issue PLOGI ACC 668 * PLOGI ACC cmpl 669 * Issue REG_LOGIN mbox 670 */ 671 672 /* Save the REG_LOGIN mbox for and rcv IOCB copy later */ 673 link_mbox->context3 = login_mbox; 674 login_mbox->context3 = save_iocb; 675 676 /* Start the ball rolling by issuing CONFIG_LINK here */ 677 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 678 if (rc == MBX_NOT_FINISHED) 679 goto out; 680 return 1; 681 } 682 683 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, login_mbox); 684 if (rc) 685 mempool_free(login_mbox, phba->mbox_mem_pool); 686 return 1; 687out: 688 if (defer_acc) 689 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 690 "4577 discovery failure: %p %p %p\n", 691 save_iocb, link_mbox, login_mbox); 692 kfree(save_iocb); 693 if (link_mbox) 694 mempool_free(link_mbox, phba->mbox_mem_pool); 695 if (login_mbox) 696 mempool_free(login_mbox, phba->mbox_mem_pool); 697 698 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 699 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 700 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 701 return 0; 702} 703 704/** 705 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 706 * @phba: pointer to lpfc hba data structure. 707 * @mboxq: pointer to mailbox object 708 * 709 * This routine is invoked to issue a completion to a rcv'ed 710 * ADISC or PDISC after the paused RPI has been resumed. 711 **/ 712static void 713lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 714{ 715 struct lpfc_vport *vport; 716 struct lpfc_iocbq *elsiocb; 717 struct lpfc_nodelist *ndlp; 718 uint32_t cmd; 719 720 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 721 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 722 vport = mboxq->vport; 723 cmd = elsiocb->drvrTimeout; 724 725 if (cmd == ELS_CMD_ADISC) { 726 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 727 } else { 728 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 729 ndlp, NULL); 730 } 731 kfree(elsiocb); 732 mempool_free(mboxq, phba->mbox_mem_pool); 733} 734 735static int 736lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 737 struct lpfc_iocbq *cmdiocb) 738{ 739 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 740 struct lpfc_iocbq *elsiocb; 741 struct lpfc_dmabuf *pcmd; 742 struct serv_parm *sp; 743 struct lpfc_name *pnn, *ppn; 744 struct ls_rjt stat; 745 ADISC *ap; 746 IOCB_t *icmd; 747 uint32_t *lp; 748 uint32_t cmd; 749 750 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 751 lp = (uint32_t *) pcmd->virt; 752 753 cmd = *lp++; 754 if (cmd == ELS_CMD_ADISC) { 755 ap = (ADISC *) lp; 756 pnn = (struct lpfc_name *) & ap->nodeName; 757 ppn = (struct lpfc_name *) & ap->portName; 758 } else { 759 sp = (struct serv_parm *) lp; 760 pnn = (struct lpfc_name *) & sp->nodeName; 761 ppn = (struct lpfc_name *) & sp->portName; 762 } 763 764 icmd = &cmdiocb->iocb; 765 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 766 767 /* 768 * As soon as we send ACC, the remote NPort can 769 * start sending us data. Thus, for SLI4 we must 770 * resume the RPI before the ACC goes out. 771 */ 772 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 773 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 774 GFP_KERNEL); 775 if (elsiocb) { 776 777 /* Save info from cmd IOCB used in rsp */ 778 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 779 sizeof(struct lpfc_iocbq)); 780 781 /* Save the ELS cmd */ 782 elsiocb->drvrTimeout = cmd; 783 784 lpfc_sli4_resume_rpi(ndlp, 785 lpfc_mbx_cmpl_resume_rpi, elsiocb); 786 goto out; 787 } 788 } 789 790 if (cmd == ELS_CMD_ADISC) { 791 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 792 } else { 793 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 794 ndlp, NULL); 795 } 796out: 797 /* If we are authenticated, move to the proper state */ 798 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 799 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 800 else 801 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 802 803 return 1; 804 } 805 /* Reject this request because invalid parameters */ 806 stat.un.b.lsRjtRsvd0 = 0; 807 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 808 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 809 stat.un.b.vendorUnique = 0; 810 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 811 812 /* 1 sec timeout */ 813 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 814 815 spin_lock_irq(shost->host_lock); 816 ndlp->nlp_flag |= NLP_DELAY_TMO; 817 spin_unlock_irq(shost->host_lock); 818 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 819 ndlp->nlp_prev_state = ndlp->nlp_state; 820 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 821 return 0; 822} 823 824static int 825lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 826 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 827{ 828 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 829 struct lpfc_hba *phba = vport->phba; 830 struct lpfc_vport **vports; 831 int i, active_vlink_present = 0 ; 832 833 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 834 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 835 * PLOGIs during LOGO storms from a device. 836 */ 837 spin_lock_irq(shost->host_lock); 838 ndlp->nlp_flag |= NLP_LOGO_ACC; 839 spin_unlock_irq(shost->host_lock); 840 if (els_cmd == ELS_CMD_PRLO) 841 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 842 else 843 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 844 if (ndlp->nlp_DID == Fabric_DID) { 845 if (vport->port_state <= LPFC_FDISC) 846 goto out; 847 lpfc_linkdown_port(vport); 848 spin_lock_irq(shost->host_lock); 849 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 850 spin_unlock_irq(shost->host_lock); 851 vports = lpfc_create_vport_work_array(phba); 852 if (vports) { 853 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 854 i++) { 855 if ((!(vports[i]->fc_flag & 856 FC_VPORT_LOGO_RCVD)) && 857 (vports[i]->port_state > LPFC_FDISC)) { 858 active_vlink_present = 1; 859 break; 860 } 861 } 862 lpfc_destroy_vport_work_array(phba, vports); 863 } 864 865 /* 866 * Don't re-instantiate if vport is marked for deletion. 867 * If we are here first then vport_delete is going to wait 868 * for discovery to complete. 869 */ 870 if (!(vport->load_flag & FC_UNLOADING) && 871 active_vlink_present) { 872 /* 873 * If there are other active VLinks present, 874 * re-instantiate the Vlink using FDISC. 875 */ 876 mod_timer(&ndlp->nlp_delayfunc, 877 jiffies + msecs_to_jiffies(1000)); 878 spin_lock_irq(shost->host_lock); 879 ndlp->nlp_flag |= NLP_DELAY_TMO; 880 spin_unlock_irq(shost->host_lock); 881 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 882 vport->port_state = LPFC_FDISC; 883 } else { 884 spin_lock_irq(shost->host_lock); 885 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 886 spin_unlock_irq(shost->host_lock); 887 lpfc_retry_pport_discovery(phba); 888 } 889 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 890 ((ndlp->nlp_type & NLP_FCP_TARGET) || 891 !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || 892 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 893 /* Only try to re-login if this is NOT a Fabric Node */ 894 mod_timer(&ndlp->nlp_delayfunc, 895 jiffies + msecs_to_jiffies(1000 * 1)); 896 spin_lock_irq(shost->host_lock); 897 ndlp->nlp_flag |= NLP_DELAY_TMO; 898 spin_unlock_irq(shost->host_lock); 899 900 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 901 } 902out: 903 ndlp->nlp_prev_state = ndlp->nlp_state; 904 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 905 906 spin_lock_irq(shost->host_lock); 907 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 908 spin_unlock_irq(shost->host_lock); 909 /* The driver has to wait until the ACC completes before it continues 910 * processing the LOGO. The action will resume in 911 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 912 * unreg_login, the driver waits so the ACC does not get aborted. 913 */ 914 return 0; 915} 916 917static uint32_t 918lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 919 struct lpfc_nodelist *ndlp, 920 struct lpfc_iocbq *cmdiocb) 921{ 922 struct ls_rjt stat; 923 uint32_t *payload; 924 uint32_t cmd; 925 926 payload = ((struct lpfc_dmabuf *)cmdiocb->context2)->virt; 927 cmd = *payload; 928 if (vport->phba->nvmet_support) { 929 /* Must be a NVME PRLI */ 930 if (cmd == ELS_CMD_PRLI) 931 goto out; 932 } else { 933 /* Initiator mode. */ 934 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 935 goto out; 936 } 937 return 1; 938out: 939 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 940 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 941 "state x%x flags x%x\n", 942 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 943 ndlp->nlp_flag); 944 memset(&stat, 0, sizeof(struct ls_rjt)); 945 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 946 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 947 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 948 ndlp, NULL); 949 return 0; 950} 951 952static void 953lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 954 struct lpfc_iocbq *cmdiocb) 955{ 956 struct lpfc_hba *phba = vport->phba; 957 struct lpfc_dmabuf *pcmd; 958 uint32_t *lp; 959 PRLI *npr; 960 struct fc_rport *rport = ndlp->rport; 961 u32 roles; 962 963 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 964 lp = (uint32_t *) pcmd->virt; 965 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 966 967 if ((npr->prliType == PRLI_FCP_TYPE) || 968 (npr->prliType == PRLI_NVME_TYPE)) { 969 if (npr->initiatorFunc) { 970 if (npr->prliType == PRLI_FCP_TYPE) 971 ndlp->nlp_type |= NLP_FCP_INITIATOR; 972 if (npr->prliType == PRLI_NVME_TYPE) 973 ndlp->nlp_type |= NLP_NVME_INITIATOR; 974 } 975 if (npr->targetFunc) { 976 if (npr->prliType == PRLI_FCP_TYPE) 977 ndlp->nlp_type |= NLP_FCP_TARGET; 978 if (npr->prliType == PRLI_NVME_TYPE) 979 ndlp->nlp_type |= NLP_NVME_TARGET; 980 if (npr->writeXferRdyDis) 981 ndlp->nlp_flag |= NLP_FIRSTBURST; 982 } 983 if (npr->Retry && ndlp->nlp_type & 984 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 985 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 986 987 if (npr->Retry && phba->nsler && 988 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 989 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 990 991 992 /* If this driver is in nvme target mode, set the ndlp's fc4 993 * type to NVME provided the PRLI response claims NVME FC4 994 * type. Target mode does not issue gft_id so doesn't get 995 * the fc4 type set until now. 996 */ 997 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 998 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 999 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1000 } 1001 if (npr->prliType == PRLI_FCP_TYPE) 1002 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1003 } 1004 if (rport) { 1005 /* We need to update the rport role values */ 1006 roles = FC_RPORT_ROLE_UNKNOWN; 1007 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1008 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1009 if (ndlp->nlp_type & NLP_FCP_TARGET) 1010 roles |= FC_RPORT_ROLE_FCP_TARGET; 1011 1012 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1013 "rport rolechg: role:x%x did:x%x flg:x%x", 1014 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1015 1016 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1017 fc_remote_port_rolechg(rport, roles); 1018 } 1019} 1020 1021static uint32_t 1022lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1023{ 1024 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1025 1026 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1027 spin_lock_irq(shost->host_lock); 1028 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1029 spin_unlock_irq(shost->host_lock); 1030 return 0; 1031 } 1032 1033 if (!(vport->fc_flag & FC_PT2PT)) { 1034 /* Check config parameter use-adisc or FCP-2 */ 1035 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 1036 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1037 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1038 spin_lock_irq(shost->host_lock); 1039 ndlp->nlp_flag |= NLP_NPR_ADISC; 1040 spin_unlock_irq(shost->host_lock); 1041 return 1; 1042 } 1043 } 1044 1045 spin_lock_irq(shost->host_lock); 1046 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1047 spin_unlock_irq(shost->host_lock); 1048 lpfc_unreg_rpi(vport, ndlp); 1049 return 0; 1050} 1051 1052/** 1053 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1054 * @phba : Pointer to lpfc_hba structure. 1055 * @vport: Pointer to lpfc_vport structure. 1056 * @rpi : rpi to be release. 1057 * 1058 * This function will send a unreg_login mailbox command to the firmware 1059 * to release a rpi. 1060 **/ 1061static void 1062lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1063 struct lpfc_nodelist *ndlp, uint16_t rpi) 1064{ 1065 LPFC_MBOXQ_t *pmb; 1066 int rc; 1067 1068 /* If there is already an UNREG in progress for this ndlp, 1069 * no need to queue up another one. 1070 */ 1071 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1072 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1073 "1435 release_rpi SKIP UNREG x%x on " 1074 "NPort x%x deferred x%x flg x%x " 1075 "Data: x%px\n", 1076 ndlp->nlp_rpi, ndlp->nlp_DID, 1077 ndlp->nlp_defer_did, 1078 ndlp->nlp_flag, ndlp); 1079 return; 1080 } 1081 1082 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1083 GFP_KERNEL); 1084 if (!pmb) 1085 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, 1086 "2796 mailbox memory allocation failed \n"); 1087 else { 1088 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1089 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1090 pmb->vport = vport; 1091 pmb->ctx_ndlp = ndlp; 1092 1093 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1094 (!(vport->fc_flag & FC_OFFLINE_MODE))) 1095 ndlp->nlp_flag |= NLP_UNREG_INP; 1096 1097 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1098 "1437 release_rpi UNREG x%x " 1099 "on NPort x%x flg x%x\n", 1100 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1101 1102 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1103 if (rc == MBX_NOT_FINISHED) 1104 mempool_free(pmb, phba->mbox_mem_pool); 1105 } 1106} 1107 1108static uint32_t 1109lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1110 void *arg, uint32_t evt) 1111{ 1112 struct lpfc_hba *phba; 1113 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1114 uint16_t rpi; 1115 1116 phba = vport->phba; 1117 /* Release the RPI if reglogin completing */ 1118 if (!(phba->pport->load_flag & FC_UNLOADING) && 1119 (evt == NLP_EVT_CMPL_REG_LOGIN) && 1120 (!pmb->u.mb.mbxStatus)) { 1121 rpi = pmb->u.mb.un.varWords[0]; 1122 lpfc_release_rpi(phba, vport, ndlp, rpi); 1123 } 1124 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1125 "0271 Illegal State Transition: node x%x " 1126 "event x%x, state x%x Data: x%x x%x\n", 1127 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1128 ndlp->nlp_flag); 1129 return ndlp->nlp_state; 1130} 1131 1132static uint32_t 1133lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1134 void *arg, uint32_t evt) 1135{ 1136 /* This transition is only legal if we previously 1137 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1138 * working on the same NPortID, do nothing for this thread 1139 * to stop it. 1140 */ 1141 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1142 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1143 "0272 Illegal State Transition: node x%x " 1144 "event x%x, state x%x Data: x%x x%x\n", 1145 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1146 ndlp->nlp_flag); 1147 } 1148 return ndlp->nlp_state; 1149} 1150 1151/* Start of Discovery State Machine routines */ 1152 1153static uint32_t 1154lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1155 void *arg, uint32_t evt) 1156{ 1157 struct lpfc_iocbq *cmdiocb; 1158 1159 cmdiocb = (struct lpfc_iocbq *) arg; 1160 1161 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1162 return ndlp->nlp_state; 1163 } 1164 return NLP_STE_FREED_NODE; 1165} 1166 1167static uint32_t 1168lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1169 void *arg, uint32_t evt) 1170{ 1171 lpfc_issue_els_logo(vport, ndlp, 0); 1172 return ndlp->nlp_state; 1173} 1174 1175static uint32_t 1176lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1177 void *arg, uint32_t evt) 1178{ 1179 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1180 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1181 1182 spin_lock_irq(shost->host_lock); 1183 ndlp->nlp_flag |= NLP_LOGO_ACC; 1184 spin_unlock_irq(shost->host_lock); 1185 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1186 1187 return ndlp->nlp_state; 1188} 1189 1190static uint32_t 1191lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1192 void *arg, uint32_t evt) 1193{ 1194 return NLP_STE_FREED_NODE; 1195} 1196 1197static uint32_t 1198lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1199 void *arg, uint32_t evt) 1200{ 1201 return NLP_STE_FREED_NODE; 1202} 1203 1204static uint32_t 1205lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1206 struct lpfc_nodelist *ndlp, 1207 void *arg, uint32_t evt) 1208{ 1209 return ndlp->nlp_state; 1210} 1211 1212static uint32_t 1213lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1214 void *arg, uint32_t evt) 1215{ 1216 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1217 struct lpfc_hba *phba = vport->phba; 1218 struct lpfc_iocbq *cmdiocb = arg; 1219 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1220 uint32_t *lp = (uint32_t *) pcmd->virt; 1221 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1222 struct ls_rjt stat; 1223 int port_cmp; 1224 1225 memset(&stat, 0, sizeof (struct ls_rjt)); 1226 1227 /* For a PLOGI, we only accept if our portname is less 1228 * than the remote portname. 1229 */ 1230 phba->fc_stat.elsLogiCol++; 1231 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1232 sizeof(struct lpfc_name)); 1233 1234 if (port_cmp >= 0) { 1235 /* Reject this request because the remote node will accept 1236 ours */ 1237 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1238 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1239 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1240 NULL); 1241 } else { 1242 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1243 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1244 (vport->num_disc_nodes)) { 1245 spin_lock_irq(shost->host_lock); 1246 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1247 spin_unlock_irq(shost->host_lock); 1248 /* Check if there are more PLOGIs to be sent */ 1249 lpfc_more_plogi(vport); 1250 if (vport->num_disc_nodes == 0) { 1251 spin_lock_irq(shost->host_lock); 1252 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1253 spin_unlock_irq(shost->host_lock); 1254 lpfc_can_disctmo(vport); 1255 lpfc_end_rscn(vport); 1256 } 1257 } 1258 } /* If our portname was less */ 1259 1260 return ndlp->nlp_state; 1261} 1262 1263static uint32_t 1264lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1265 void *arg, uint32_t evt) 1266{ 1267 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1268 struct ls_rjt stat; 1269 1270 memset(&stat, 0, sizeof (struct ls_rjt)); 1271 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1272 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1273 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1274 return ndlp->nlp_state; 1275} 1276 1277static uint32_t 1278lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1279 void *arg, uint32_t evt) 1280{ 1281 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1282 1283 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1284 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1285 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1286 /* software abort outstanding PLOGI */ 1287 lpfc_els_abort(vport->phba, ndlp); 1288 1289 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1290 return ndlp->nlp_state; 1291} 1292 1293static uint32_t 1294lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1295 void *arg, uint32_t evt) 1296{ 1297 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1298 struct lpfc_hba *phba = vport->phba; 1299 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1300 1301 /* software abort outstanding PLOGI */ 1302 lpfc_els_abort(phba, ndlp); 1303 1304 if (evt == NLP_EVT_RCV_LOGO) { 1305 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1306 } else { 1307 lpfc_issue_els_logo(vport, ndlp, 0); 1308 } 1309 1310 /* Put ndlp in npr state set plogi timer for 1 sec */ 1311 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1312 spin_lock_irq(shost->host_lock); 1313 ndlp->nlp_flag |= NLP_DELAY_TMO; 1314 spin_unlock_irq(shost->host_lock); 1315 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1316 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1317 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1318 1319 return ndlp->nlp_state; 1320} 1321 1322static uint32_t 1323lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1324 struct lpfc_nodelist *ndlp, 1325 void *arg, 1326 uint32_t evt) 1327{ 1328 struct lpfc_hba *phba = vport->phba; 1329 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1330 struct lpfc_iocbq *cmdiocb, *rspiocb; 1331 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1332 uint32_t *lp; 1333 uint32_t vid, flag; 1334 IOCB_t *irsp; 1335 struct serv_parm *sp; 1336 uint32_t ed_tov; 1337 LPFC_MBOXQ_t *mbox; 1338 int rc; 1339 1340 cmdiocb = (struct lpfc_iocbq *) arg; 1341 rspiocb = cmdiocb->context_un.rsp_iocb; 1342 1343 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1344 /* Recovery from PLOGI collision logic */ 1345 return ndlp->nlp_state; 1346 } 1347 1348 irsp = &rspiocb->iocb; 1349 1350 if (irsp->ulpStatus) 1351 goto out; 1352 1353 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1354 1355 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1356 if (!prsp) 1357 goto out; 1358 1359 lp = (uint32_t *) prsp->virt; 1360 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1361 1362 /* Some switches have FDMI servers returning 0 for WWN */ 1363 if ((ndlp->nlp_DID != FDMI_DID) && 1364 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1365 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1366 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1367 "0142 PLOGI RSP: Invalid WWN.\n"); 1368 goto out; 1369 } 1370 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1371 goto out; 1372 /* PLOGI chkparm OK */ 1373 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1374 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1375 ndlp->nlp_DID, ndlp->nlp_state, 1376 ndlp->nlp_flag, ndlp->nlp_rpi); 1377 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1378 ndlp->nlp_fcp_info |= CLASS2; 1379 else 1380 ndlp->nlp_fcp_info |= CLASS3; 1381 1382 ndlp->nlp_class_sup = 0; 1383 if (sp->cls1.classValid) 1384 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1385 if (sp->cls2.classValid) 1386 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1387 if (sp->cls3.classValid) 1388 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1389 if (sp->cls4.classValid) 1390 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1391 ndlp->nlp_maxframe = 1392 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1393 1394 if ((vport->fc_flag & FC_PT2PT) && 1395 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1396 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1397 if (sp->cmn.edtovResolution) { 1398 /* E_D_TOV ticks are in nanoseconds */ 1399 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1400 } 1401 1402 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1403 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1404 sp->cmn.valid_vendor_ver_level) { 1405 vid = be32_to_cpu(sp->un.vv.vid); 1406 flag = be32_to_cpu(sp->un.vv.flags); 1407 if ((vid == LPFC_VV_EMLX_ID) && 1408 (flag & LPFC_VV_SUPPRESS_RSP)) 1409 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1410 } 1411 1412 /* 1413 * Use the larger EDTOV 1414 * RATOV = 2 * EDTOV for pt-to-pt 1415 */ 1416 if (ed_tov > phba->fc_edtov) 1417 phba->fc_edtov = ed_tov; 1418 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1419 1420 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1421 1422 /* Issue config_link / reg_vfi to account for updated TOV's */ 1423 if (phba->sli_rev == LPFC_SLI_REV4) { 1424 lpfc_issue_reg_vfi(vport); 1425 } else { 1426 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1427 if (!mbox) { 1428 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1429 "0133 PLOGI: no memory " 1430 "for config_link " 1431 "Data: x%x x%x x%x x%x\n", 1432 ndlp->nlp_DID, ndlp->nlp_state, 1433 ndlp->nlp_flag, ndlp->nlp_rpi); 1434 goto out; 1435 } 1436 1437 lpfc_config_link(phba, mbox); 1438 1439 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1440 mbox->vport = vport; 1441 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1442 if (rc == MBX_NOT_FINISHED) { 1443 mempool_free(mbox, phba->mbox_mem_pool); 1444 goto out; 1445 } 1446 } 1447 } 1448 1449 lpfc_unreg_rpi(vport, ndlp); 1450 1451 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1452 if (!mbox) { 1453 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1454 "0018 PLOGI: no memory for reg_login " 1455 "Data: x%x x%x x%x x%x\n", 1456 ndlp->nlp_DID, ndlp->nlp_state, 1457 ndlp->nlp_flag, ndlp->nlp_rpi); 1458 goto out; 1459 } 1460 1461 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1462 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1463 switch (ndlp->nlp_DID) { 1464 case NameServer_DID: 1465 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1466 break; 1467 case FDMI_DID: 1468 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1469 break; 1470 default: 1471 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1472 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1473 } 1474 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1475 mbox->vport = vport; 1476 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1477 != MBX_NOT_FINISHED) { 1478 lpfc_nlp_set_state(vport, ndlp, 1479 NLP_STE_REG_LOGIN_ISSUE); 1480 return ndlp->nlp_state; 1481 } 1482 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1483 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1484 /* decrement node reference count to the failed mbox 1485 * command 1486 */ 1487 lpfc_nlp_put(ndlp); 1488 mp = (struct lpfc_dmabuf *)mbox->ctx_buf; 1489 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1490 kfree(mp); 1491 mempool_free(mbox, phba->mbox_mem_pool); 1492 1493 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1494 "0134 PLOGI: cannot issue reg_login " 1495 "Data: x%x x%x x%x x%x\n", 1496 ndlp->nlp_DID, ndlp->nlp_state, 1497 ndlp->nlp_flag, ndlp->nlp_rpi); 1498 } else { 1499 mempool_free(mbox, phba->mbox_mem_pool); 1500 1501 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1502 "0135 PLOGI: cannot format reg_login " 1503 "Data: x%x x%x x%x x%x\n", 1504 ndlp->nlp_DID, ndlp->nlp_state, 1505 ndlp->nlp_flag, ndlp->nlp_rpi); 1506 } 1507 1508 1509out: 1510 if (ndlp->nlp_DID == NameServer_DID) { 1511 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1512 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 1513 "0261 Cannot Register NameServer login\n"); 1514 } 1515 1516 /* 1517 ** In case the node reference counter does not go to zero, ensure that 1518 ** the stale state for the node is not processed. 1519 */ 1520 1521 ndlp->nlp_prev_state = ndlp->nlp_state; 1522 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1523 spin_lock_irq(shost->host_lock); 1524 ndlp->nlp_flag |= NLP_DEFER_RM; 1525 spin_unlock_irq(shost->host_lock); 1526 return NLP_STE_FREED_NODE; 1527} 1528 1529static uint32_t 1530lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1531 void *arg, uint32_t evt) 1532{ 1533 return ndlp->nlp_state; 1534} 1535 1536static uint32_t 1537lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1538 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1539{ 1540 struct lpfc_hba *phba; 1541 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1542 MAILBOX_t *mb = &pmb->u.mb; 1543 uint16_t rpi; 1544 1545 phba = vport->phba; 1546 /* Release the RPI */ 1547 if (!(phba->pport->load_flag & FC_UNLOADING) && 1548 !mb->mbxStatus) { 1549 rpi = pmb->u.mb.un.varWords[0]; 1550 lpfc_release_rpi(phba, vport, ndlp, rpi); 1551 } 1552 return ndlp->nlp_state; 1553} 1554 1555static uint32_t 1556lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1557 void *arg, uint32_t evt) 1558{ 1559 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1560 1561 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1562 spin_lock_irq(shost->host_lock); 1563 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1564 spin_unlock_irq(shost->host_lock); 1565 return ndlp->nlp_state; 1566 } else { 1567 /* software abort outstanding PLOGI */ 1568 lpfc_els_abort(vport->phba, ndlp); 1569 1570 lpfc_drop_node(vport, ndlp); 1571 return NLP_STE_FREED_NODE; 1572 } 1573} 1574 1575static uint32_t 1576lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1577 struct lpfc_nodelist *ndlp, 1578 void *arg, 1579 uint32_t evt) 1580{ 1581 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1582 struct lpfc_hba *phba = vport->phba; 1583 1584 /* Don't do anything that will mess up processing of the 1585 * previous RSCN. 1586 */ 1587 if (vport->fc_flag & FC_RSCN_DEFERRED) 1588 return ndlp->nlp_state; 1589 1590 /* software abort outstanding PLOGI */ 1591 lpfc_els_abort(phba, ndlp); 1592 1593 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1594 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1595 spin_lock_irq(shost->host_lock); 1596 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1597 spin_unlock_irq(shost->host_lock); 1598 1599 return ndlp->nlp_state; 1600} 1601 1602static uint32_t 1603lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1604 void *arg, uint32_t evt) 1605{ 1606 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1607 struct lpfc_hba *phba = vport->phba; 1608 struct lpfc_iocbq *cmdiocb; 1609 1610 /* software abort outstanding ADISC */ 1611 lpfc_els_abort(phba, ndlp); 1612 1613 cmdiocb = (struct lpfc_iocbq *) arg; 1614 1615 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1616 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1617 spin_lock_irq(shost->host_lock); 1618 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1619 spin_unlock_irq(shost->host_lock); 1620 if (vport->num_disc_nodes) 1621 lpfc_more_adisc(vport); 1622 } 1623 return ndlp->nlp_state; 1624 } 1625 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1626 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1627 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1628 1629 return ndlp->nlp_state; 1630} 1631 1632static uint32_t 1633lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1634 void *arg, uint32_t evt) 1635{ 1636 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1637 1638 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1639 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1640 return ndlp->nlp_state; 1641} 1642 1643static uint32_t 1644lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1645 void *arg, uint32_t evt) 1646{ 1647 struct lpfc_hba *phba = vport->phba; 1648 struct lpfc_iocbq *cmdiocb; 1649 1650 cmdiocb = (struct lpfc_iocbq *) arg; 1651 1652 /* software abort outstanding ADISC */ 1653 lpfc_els_abort(phba, ndlp); 1654 1655 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1656 return ndlp->nlp_state; 1657} 1658 1659static uint32_t 1660lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1661 struct lpfc_nodelist *ndlp, 1662 void *arg, uint32_t evt) 1663{ 1664 struct lpfc_iocbq *cmdiocb; 1665 1666 cmdiocb = (struct lpfc_iocbq *) arg; 1667 1668 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1669 return ndlp->nlp_state; 1670} 1671 1672static uint32_t 1673lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1674 void *arg, uint32_t evt) 1675{ 1676 struct lpfc_iocbq *cmdiocb; 1677 1678 cmdiocb = (struct lpfc_iocbq *) arg; 1679 1680 /* Treat like rcv logo */ 1681 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1682 return ndlp->nlp_state; 1683} 1684 1685static uint32_t 1686lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1687 struct lpfc_nodelist *ndlp, 1688 void *arg, uint32_t evt) 1689{ 1690 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1691 struct lpfc_hba *phba = vport->phba; 1692 struct lpfc_iocbq *cmdiocb, *rspiocb; 1693 IOCB_t *irsp; 1694 ADISC *ap; 1695 int rc; 1696 1697 cmdiocb = (struct lpfc_iocbq *) arg; 1698 rspiocb = cmdiocb->context_un.rsp_iocb; 1699 1700 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1701 irsp = &rspiocb->iocb; 1702 1703 if ((irsp->ulpStatus…
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