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 "lpfc_hw4.h" 36#include "lpfc_hw.h" 37#include "lpfc_sli.h" 38#include "lpfc_sli4.h" 39#include "lpfc_nl.h" 40#include "lpfc_disc.h" 41#include "lpfc.h" 42#include "lpfc_scsi.h" 43#include "lpfc_nvme.h" 44#include "lpfc_logmsg.h" 45#include "lpfc_crtn.h" 46#include "lpfc_vport.h" 47#include "lpfc_debugfs.h" 48 49 50/* Called to verify a rcv'ed ADISC was intended for us. */ 51static int 52lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 53 struct lpfc_name *nn, struct lpfc_name *pn) 54{ 55 /* First, we MUST have a RPI registered */ 56 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) 57 return 0; 58 59 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 60 * table entry for that node. 61 */ 62 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 63 return 0; 64 65 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 66 return 0; 67 68 /* we match, return success */ 69 return 1; 70} 71 72int 73lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 74 struct serv_parm *sp, uint32_t class, int flogi) 75{ 76 volatile struct serv_parm *hsp = &vport->fc_sparam; 77 uint16_t hsp_value, ssp_value = 0; 78 79 /* 80 * The receive data field size and buffer-to-buffer receive data field 81 * size entries are 16 bits but are represented as two 8-bit fields in 82 * the driver data structure to account for rsvd bits and other control 83 * bits. Reconstruct and compare the fields as a 16-bit values before 84 * correcting the byte values. 85 */ 86 if (sp->cls1.classValid) { 87 if (!flogi) { 88 hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | 89 hsp->cls1.rcvDataSizeLsb); 90 ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | 91 sp->cls1.rcvDataSizeLsb); 92 if (!ssp_value) 93 goto bad_service_param; 94 if (ssp_value > hsp_value) { 95 sp->cls1.rcvDataSizeLsb = 96 hsp->cls1.rcvDataSizeLsb; 97 sp->cls1.rcvDataSizeMsb = 98 hsp->cls1.rcvDataSizeMsb; 99 } 100 } 101 } else if (class == CLASS1) 102 goto bad_service_param; 103 if (sp->cls2.classValid) { 104 if (!flogi) { 105 hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | 106 hsp->cls2.rcvDataSizeLsb); 107 ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | 108 sp->cls2.rcvDataSizeLsb); 109 if (!ssp_value) 110 goto bad_service_param; 111 if (ssp_value > hsp_value) { 112 sp->cls2.rcvDataSizeLsb = 113 hsp->cls2.rcvDataSizeLsb; 114 sp->cls2.rcvDataSizeMsb = 115 hsp->cls2.rcvDataSizeMsb; 116 } 117 } 118 } else if (class == CLASS2) 119 goto bad_service_param; 120 if (sp->cls3.classValid) { 121 if (!flogi) { 122 hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | 123 hsp->cls3.rcvDataSizeLsb); 124 ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | 125 sp->cls3.rcvDataSizeLsb); 126 if (!ssp_value) 127 goto bad_service_param; 128 if (ssp_value > hsp_value) { 129 sp->cls3.rcvDataSizeLsb = 130 hsp->cls3.rcvDataSizeLsb; 131 sp->cls3.rcvDataSizeMsb = 132 hsp->cls3.rcvDataSizeMsb; 133 } 134 } 135 } else if (class == CLASS3) 136 goto bad_service_param; 137 138 /* 139 * Preserve the upper four bits of the MSB from the PLOGI response. 140 * These bits contain the Buffer-to-Buffer State Change Number 141 * from the target and need to be passed to the FW. 142 */ 143 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 144 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 145 if (ssp_value > hsp_value) { 146 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 147 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 148 (hsp->cmn.bbRcvSizeMsb & 0x0F); 149 } 150 151 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 152 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 153 return 1; 154bad_service_param: 155 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 156 "0207 Device %x " 157 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 158 "invalid service parameters. Ignoring device.\n", 159 ndlp->nlp_DID, 160 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 161 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 162 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 163 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 164 return 0; 165} 166 167static void * 168lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 169 struct lpfc_iocbq *rspiocb) 170{ 171 struct lpfc_dmabuf *pcmd, *prsp; 172 uint32_t *lp; 173 void *ptr = NULL; 174 IOCB_t *irsp; 175 176 irsp = &rspiocb->iocb; 177 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 178 179 /* For lpfc_els_abort, context2 could be zero'ed to delay 180 * freeing associated memory till after ABTS completes. 181 */ 182 if (pcmd) { 183 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 184 list); 185 if (prsp) { 186 lp = (uint32_t *) prsp->virt; 187 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 188 } 189 } else { 190 /* Force ulpStatus error since we are returning NULL ptr */ 191 if (!(irsp->ulpStatus)) { 192 irsp->ulpStatus = IOSTAT_LOCAL_REJECT; 193 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED; 194 } 195 ptr = NULL; 196 } 197 return ptr; 198} 199 200 201 202/* 203 * Free resources / clean up outstanding I/Os 204 * associated with a LPFC_NODELIST entry. This 205 * routine effectively results in a "software abort". 206 */ 207void 208lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 209{ 210 LIST_HEAD(abort_list); 211 struct lpfc_sli_ring *pring; 212 struct lpfc_iocbq *iocb, *next_iocb; 213 214 pring = lpfc_phba_elsring(phba); 215 216 /* In case of error recovery path, we might have a NULL pring here */ 217 if (unlikely(!pring)) 218 return; 219 220 /* Abort outstanding I/O on NPort <nlp_DID> */ 221 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 222 "2819 Abort outstanding I/O on NPort x%x " 223 "Data: x%x x%x x%x\n", 224 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 225 ndlp->nlp_rpi); 226 /* Clean up all fabric IOs first.*/ 227 lpfc_fabric_abort_nport(ndlp); 228 229 /* 230 * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list 231 * of all ELS IOs that need an ABTS. The IOs need to stay on the 232 * txcmplq so that the abort operation completes them successfully. 233 */ 234 spin_lock_irq(&phba->hbalock); 235 if (phba->sli_rev == LPFC_SLI_REV4) 236 spin_lock(&pring->ring_lock); 237 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 238 /* Add to abort_list on on NDLP match. */ 239 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) 240 list_add_tail(&iocb->dlist, &abort_list); 241 } 242 if (phba->sli_rev == LPFC_SLI_REV4) 243 spin_unlock(&pring->ring_lock); 244 spin_unlock_irq(&phba->hbalock); 245 246 /* Abort the targeted IOs and remove them from the abort list. */ 247 list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { 248 spin_lock_irq(&phba->hbalock); 249 list_del_init(&iocb->dlist); 250 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 251 spin_unlock_irq(&phba->hbalock); 252 } 253 254 INIT_LIST_HEAD(&abort_list); 255 256 /* Now process the txq */ 257 spin_lock_irq(&phba->hbalock); 258 if (phba->sli_rev == LPFC_SLI_REV4) 259 spin_lock(&pring->ring_lock); 260 261 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 262 /* Check to see if iocb matches the nport we are looking for */ 263 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 264 list_del_init(&iocb->list); 265 list_add_tail(&iocb->list, &abort_list); 266 } 267 } 268 269 if (phba->sli_rev == LPFC_SLI_REV4) 270 spin_unlock(&pring->ring_lock); 271 spin_unlock_irq(&phba->hbalock); 272 273 /* Cancel all the IOCBs from the completions list */ 274 lpfc_sli_cancel_iocbs(phba, &abort_list, 275 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 276 277 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 278} 279 280/* lpfc_defer_pt2pt_acc - Complete SLI3 pt2pt processing on link up 281 * @phba: pointer to lpfc hba data structure. 282 * @link_mbox: pointer to CONFIG_LINK mailbox object 283 * 284 * This routine is only called if we are SLI3, direct connect pt2pt 285 * mode and the remote NPort issues the PLOGI after link up. 286 */ 287static void 288lpfc_defer_pt2pt_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *link_mbox) 289{ 290 LPFC_MBOXQ_t *login_mbox; 291 MAILBOX_t *mb = &link_mbox->u.mb; 292 struct lpfc_iocbq *save_iocb; 293 struct lpfc_nodelist *ndlp; 294 int rc; 295 296 ndlp = link_mbox->ctx_ndlp; 297 login_mbox = link_mbox->context3; 298 save_iocb = login_mbox->context3; 299 link_mbox->context3 = NULL; 300 login_mbox->context3 = NULL; 301 302 /* Check for CONFIG_LINK error */ 303 if (mb->mbxStatus) { 304 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 305 "4575 CONFIG_LINK fails pt2pt discovery: %x\n", 306 mb->mbxStatus); 307 mempool_free(login_mbox, phba->mbox_mem_pool); 308 mempool_free(link_mbox, phba->mbox_mem_pool); 309 kfree(save_iocb); 310 return; 311 } 312 313 /* Now that CONFIG_LINK completed, and our SID is configured, 314 * we can now proceed with sending the PLOGI ACC. 315 */ 316 rc = lpfc_els_rsp_acc(link_mbox->vport, ELS_CMD_PLOGI, 317 save_iocb, ndlp, login_mbox); 318 if (rc) { 319 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 320 "4576 PLOGI ACC fails pt2pt discovery: %x\n", 321 rc); 322 mempool_free(login_mbox, phba->mbox_mem_pool); 323 } 324 325 mempool_free(link_mbox, phba->mbox_mem_pool); 326 kfree(save_iocb); 327} 328 329/** 330 * lpfc_defer_tgt_acc - Progress SLI4 target rcv PLOGI handler 331 * @phba: Pointer to HBA context object. 332 * @pmb: Pointer to mailbox object. 333 * 334 * This function provides the unreg rpi mailbox completion handler for a tgt. 335 * The routine frees the memory resources associated with the completed 336 * mailbox command and transmits the ELS ACC. 337 * 338 * This routine is only called if we are SLI4, acting in target 339 * mode and the remote NPort issues the PLOGI after link up. 340 **/ 341static void 342lpfc_defer_acc_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 343{ 344 struct lpfc_vport *vport = pmb->vport; 345 struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; 346 LPFC_MBOXQ_t *mbox = pmb->context3; 347 struct lpfc_iocbq *piocb = NULL; 348 int rc; 349 350 if (mbox) { 351 pmb->context3 = NULL; 352 piocb = mbox->context3; 353 mbox->context3 = NULL; 354 } 355 356 /* 357 * Complete the unreg rpi mbx request, and update flags. 358 * This will also restart any deferred events. 359 */ 360 lpfc_nlp_get(ndlp); 361 lpfc_sli4_unreg_rpi_cmpl_clr(phba, pmb); 362 363 if (!piocb) { 364 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 365 "4578 PLOGI ACC fail\n"); 366 if (mbox) 367 mempool_free(mbox, phba->mbox_mem_pool); 368 goto out; 369 } 370 371 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, piocb, ndlp, mbox); 372 if (rc) { 373 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 374 "4579 PLOGI ACC fail %x\n", rc); 375 if (mbox) 376 mempool_free(mbox, phba->mbox_mem_pool); 377 } 378 kfree(piocb); 379out: 380 lpfc_nlp_put(ndlp); 381} 382 383static int 384lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 385 struct lpfc_iocbq *cmdiocb) 386{ 387 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 388 struct lpfc_hba *phba = vport->phba; 389 struct lpfc_dmabuf *pcmd; 390 uint64_t nlp_portwwn = 0; 391 uint32_t *lp; 392 IOCB_t *icmd; 393 struct serv_parm *sp; 394 uint32_t ed_tov; 395 LPFC_MBOXQ_t *link_mbox; 396 LPFC_MBOXQ_t *login_mbox; 397 struct lpfc_iocbq *save_iocb; 398 struct ls_rjt stat; 399 uint32_t vid, flag; 400 u16 rpi; 401 int rc, defer_acc; 402 403 memset(&stat, 0, sizeof (struct ls_rjt)); 404 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 405 lp = (uint32_t *) pcmd->virt; 406 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 407 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 408 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 409 "0140 PLOGI Reject: invalid nname\n"); 410 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 411 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 412 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 413 NULL); 414 return 0; 415 } 416 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 417 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 418 "0141 PLOGI Reject: invalid pname\n"); 419 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 420 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 421 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 422 NULL); 423 return 0; 424 } 425 426 nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); 427 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { 428 /* Reject this request because invalid parameters */ 429 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 430 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 431 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 432 NULL); 433 return 0; 434 } 435 icmd = &cmdiocb->iocb; 436 437 /* PLOGI chkparm OK */ 438 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 439 "0114 PLOGI chkparm OK Data: x%x x%x x%x " 440 "x%x x%x x%x\n", 441 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 442 ndlp->nlp_rpi, vport->port_state, 443 vport->fc_flag); 444 445 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 446 ndlp->nlp_fcp_info |= CLASS2; 447 else 448 ndlp->nlp_fcp_info |= CLASS3; 449 450 defer_acc = 0; 451 ndlp->nlp_class_sup = 0; 452 if (sp->cls1.classValid) 453 ndlp->nlp_class_sup |= FC_COS_CLASS1; 454 if (sp->cls2.classValid) 455 ndlp->nlp_class_sup |= FC_COS_CLASS2; 456 if (sp->cls3.classValid) 457 ndlp->nlp_class_sup |= FC_COS_CLASS3; 458 if (sp->cls4.classValid) 459 ndlp->nlp_class_sup |= FC_COS_CLASS4; 460 ndlp->nlp_maxframe = 461 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 462 /* if already logged in, do implicit logout */ 463 switch (ndlp->nlp_state) { 464 case NLP_STE_NPR_NODE: 465 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 466 break; 467 fallthrough; 468 case NLP_STE_REG_LOGIN_ISSUE: 469 case NLP_STE_PRLI_ISSUE: 470 case NLP_STE_UNMAPPED_NODE: 471 case NLP_STE_MAPPED_NODE: 472 /* For initiators, lpfc_plogi_confirm_nport skips fabric did. 473 * For target mode, execute implicit logo. 474 * Fabric nodes go into NPR. 475 */ 476 if (!(ndlp->nlp_type & NLP_FABRIC) && 477 !(phba->nvmet_support)) { 478 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 479 ndlp, NULL); 480 return 1; 481 } 482 if (nlp_portwwn != 0 && 483 nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) 484 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 485 "0143 PLOGI recv'd from DID: x%x " 486 "WWPN changed: old %llx new %llx\n", 487 ndlp->nlp_DID, 488 (unsigned long long)nlp_portwwn, 489 (unsigned long long) 490 wwn_to_u64(sp->portName.u.wwn)); 491 492 /* Notify transport of connectivity loss to trigger cleanup. */ 493 if (phba->nvmet_support && 494 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 495 lpfc_nvmet_invalidate_host(phba, ndlp); 496 497 ndlp->nlp_prev_state = ndlp->nlp_state; 498 /* rport needs to be unregistered first */ 499 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 500 break; 501 } 502 503 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 504 ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); 505 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 506 ndlp->nlp_flag &= ~NLP_FIRSTBURST; 507 508 login_mbox = NULL; 509 link_mbox = NULL; 510 save_iocb = NULL; 511 512 /* Check for Nport to NPort pt2pt protocol */ 513 if ((vport->fc_flag & FC_PT2PT) && 514 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 515 /* rcv'ed PLOGI decides what our NPortId will be */ 516 vport->fc_myDID = icmd->un.rcvels.parmRo; 517 518 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 519 if (sp->cmn.edtovResolution) { 520 /* E_D_TOV ticks are in nanoseconds */ 521 ed_tov = (phba->fc_edtov + 999999) / 1000000; 522 } 523 524 /* 525 * For pt-to-pt, use the larger EDTOV 526 * RATOV = 2 * EDTOV 527 */ 528 if (ed_tov > phba->fc_edtov) 529 phba->fc_edtov = ed_tov; 530 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 531 532 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 533 534 /* Issue config_link / reg_vfi to account for updated TOV's */ 535 536 if (phba->sli_rev == LPFC_SLI_REV4) 537 lpfc_issue_reg_vfi(vport); 538 else { 539 defer_acc = 1; 540 link_mbox = mempool_alloc(phba->mbox_mem_pool, 541 GFP_KERNEL); 542 if (!link_mbox) 543 goto out; 544 lpfc_config_link(phba, link_mbox); 545 link_mbox->mbox_cmpl = lpfc_defer_pt2pt_acc; 546 link_mbox->vport = vport; 547 link_mbox->ctx_ndlp = ndlp; 548 549 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 550 if (!save_iocb) 551 goto out; 552 /* Save info from cmd IOCB used in rsp */ 553 memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb, 554 sizeof(struct lpfc_iocbq)); 555 } 556 557 lpfc_can_disctmo(vport); 558 } 559 560 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 561 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 562 sp->cmn.valid_vendor_ver_level) { 563 vid = be32_to_cpu(sp->un.vv.vid); 564 flag = be32_to_cpu(sp->un.vv.flags); 565 if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) 566 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 567 } 568 569 login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 570 if (!login_mbox) 571 goto out; 572 573 /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ 574 if (phba->nvmet_support && !defer_acc) { 575 link_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 576 if (!link_mbox) 577 goto out; 578 579 /* As unique identifiers such as iotag would be overwritten 580 * with those from the cmdiocb, allocate separate temporary 581 * storage for the copy. 582 */ 583 save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL); 584 if (!save_iocb) 585 goto out; 586 587 /* Unreg RPI is required for SLI4. */ 588 rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; 589 lpfc_unreg_login(phba, vport->vpi, rpi, link_mbox); 590 link_mbox->vport = vport; 591 link_mbox->ctx_ndlp = ndlp; 592 link_mbox->mbox_cmpl = lpfc_defer_acc_rsp; 593 594 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 595 (!(vport->fc_flag & FC_OFFLINE_MODE))) 596 ndlp->nlp_flag |= NLP_UNREG_INP; 597 598 /* Save info from cmd IOCB used in rsp */ 599 memcpy(save_iocb, cmdiocb, sizeof(*save_iocb)); 600 601 /* Delay sending ACC till unreg RPI completes. */ 602 defer_acc = 1; 603 } else if (phba->sli_rev == LPFC_SLI_REV4) 604 lpfc_unreg_rpi(vport, ndlp); 605 606 rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID, 607 (uint8_t *)sp, login_mbox, ndlp->nlp_rpi); 608 if (rc) 609 goto out; 610 611 /* ACC PLOGI rsp command needs to execute first, 612 * queue this login_mbox command to be processed later. 613 */ 614 login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 615 /* 616 * login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp) deferred until mailbox 617 * command issued in lpfc_cmpl_els_acc(). 618 */ 619 login_mbox->vport = vport; 620 spin_lock_irq(shost->host_lock); 621 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 622 spin_unlock_irq(shost->host_lock); 623 624 /* 625 * If there is an outstanding PLOGI issued, abort it before 626 * sending ACC rsp for received PLOGI. If pending plogi 627 * is not canceled here, the plogi will be rejected by 628 * remote port and will be retried. On a configuration with 629 * single discovery thread, this will cause a huge delay in 630 * discovery. Also this will cause multiple state machines 631 * running in parallel for this node. 632 * This only applies to a fabric environment. 633 */ 634 if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 635 (vport->fc_flag & FC_FABRIC)) { 636 /* software abort outstanding PLOGI */ 637 lpfc_els_abort(phba, ndlp); 638 } 639 640 if ((vport->port_type == LPFC_NPIV_PORT && 641 vport->cfg_restrict_login)) { 642 643 /* no deferred ACC */ 644 kfree(save_iocb); 645 646 /* In order to preserve RPIs, we want to cleanup 647 * the default RPI the firmware created to rcv 648 * this ELS request. The only way to do this is 649 * to register, then unregister the RPI. 650 */ 651 spin_lock_irq(shost->host_lock); 652 ndlp->nlp_flag |= NLP_RM_DFLT_RPI; 653 spin_unlock_irq(shost->host_lock); 654 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 655 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 656 rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 657 ndlp, login_mbox); 658 if (rc) 659 mempool_free(login_mbox, phba->mbox_mem_pool); 660 return 1; 661 } 662 if (defer_acc) { 663 /* So the order here should be: 664 * SLI3 pt2pt 665 * Issue CONFIG_LINK mbox 666 * CONFIG_LINK cmpl 667 * SLI4 tgt 668 * Issue UNREG RPI mbx 669 * UNREG RPI cmpl 670 * Issue PLOGI ACC 671 * PLOGI ACC cmpl 672 * Issue REG_LOGIN mbox 673 */ 674 675 /* Save the REG_LOGIN mbox for and rcv IOCB copy later */ 676 link_mbox->context3 = login_mbox; 677 login_mbox->context3 = save_iocb; 678 679 /* Start the ball rolling by issuing CONFIG_LINK here */ 680 rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT); 681 if (rc == MBX_NOT_FINISHED) 682 goto out; 683 return 1; 684 } 685 686 rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, login_mbox); 687 if (rc) 688 mempool_free(login_mbox, phba->mbox_mem_pool); 689 return 1; 690out: 691 if (defer_acc) 692 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, 693 "4577 discovery failure: %p %p %p\n", 694 save_iocb, link_mbox, login_mbox); 695 kfree(save_iocb); 696 if (link_mbox) 697 mempool_free(link_mbox, phba->mbox_mem_pool); 698 if (login_mbox) 699 mempool_free(login_mbox, phba->mbox_mem_pool); 700 701 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 702 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 703 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 704 return 0; 705} 706 707/** 708 * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine 709 * @phba: pointer to lpfc hba data structure. 710 * @mboxq: pointer to mailbox object 711 * 712 * This routine is invoked to issue a completion to a rcv'ed 713 * ADISC or PDISC after the paused RPI has been resumed. 714 **/ 715static void 716lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 717{ 718 struct lpfc_vport *vport; 719 struct lpfc_iocbq *elsiocb; 720 struct lpfc_nodelist *ndlp; 721 uint32_t cmd; 722 723 elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; 724 ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; 725 vport = mboxq->vport; 726 cmd = elsiocb->drvrTimeout; 727 728 if (cmd == ELS_CMD_ADISC) { 729 lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); 730 } else { 731 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, 732 ndlp, NULL); 733 } 734 kfree(elsiocb); 735 mempool_free(mboxq, phba->mbox_mem_pool); 736} 737 738static int 739lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 740 struct lpfc_iocbq *cmdiocb) 741{ 742 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 743 struct lpfc_iocbq *elsiocb; 744 struct lpfc_dmabuf *pcmd; 745 struct serv_parm *sp; 746 struct lpfc_name *pnn, *ppn; 747 struct ls_rjt stat; 748 ADISC *ap; 749 IOCB_t *icmd; 750 uint32_t *lp; 751 uint32_t cmd; 752 753 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 754 lp = (uint32_t *) pcmd->virt; 755 756 cmd = *lp++; 757 if (cmd == ELS_CMD_ADISC) { 758 ap = (ADISC *) lp; 759 pnn = (struct lpfc_name *) & ap->nodeName; 760 ppn = (struct lpfc_name *) & ap->portName; 761 } else { 762 sp = (struct serv_parm *) lp; 763 pnn = (struct lpfc_name *) & sp->nodeName; 764 ppn = (struct lpfc_name *) & sp->portName; 765 } 766 767 icmd = &cmdiocb->iocb; 768 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 769 770 /* 771 * As soon as we send ACC, the remote NPort can 772 * start sending us data. Thus, for SLI4 we must 773 * resume the RPI before the ACC goes out. 774 */ 775 if (vport->phba->sli_rev == LPFC_SLI_REV4) { 776 elsiocb = kmalloc(sizeof(struct lpfc_iocbq), 777 GFP_KERNEL); 778 if (elsiocb) { 779 780 /* Save info from cmd IOCB used in rsp */ 781 memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, 782 sizeof(struct lpfc_iocbq)); 783 784 /* Save the ELS cmd */ 785 elsiocb->drvrTimeout = cmd; 786 787 lpfc_sli4_resume_rpi(ndlp, 788 lpfc_mbx_cmpl_resume_rpi, elsiocb); 789 goto out; 790 } 791 } 792 793 if (cmd == ELS_CMD_ADISC) { 794 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 795 } else { 796 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, 797 ndlp, NULL); 798 } 799out: 800 /* If we are authenticated, move to the proper state. 801 * It is possible an ADISC arrived and the remote nport 802 * is already in MAPPED or UNMAPPED state. Catch this 803 * condition and don't set the nlp_state again because 804 * it causes an unnecessary transport unregister/register. 805 */ 806 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 807 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) 808 lpfc_nlp_set_state(vport, ndlp, 809 NLP_STE_MAPPED_NODE); 810 } 811 812 return 1; 813 } 814 /* Reject this request because invalid parameters */ 815 stat.un.b.lsRjtRsvd0 = 0; 816 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 817 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 818 stat.un.b.vendorUnique = 0; 819 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 820 821 /* 1 sec timeout */ 822 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); 823 824 spin_lock_irq(shost->host_lock); 825 ndlp->nlp_flag |= NLP_DELAY_TMO; 826 spin_unlock_irq(shost->host_lock); 827 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 828 ndlp->nlp_prev_state = ndlp->nlp_state; 829 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 830 return 0; 831} 832 833static int 834lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 835 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 836{ 837 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 838 struct lpfc_hba *phba = vport->phba; 839 struct lpfc_vport **vports; 840 int i, active_vlink_present = 0 ; 841 842 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 843 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 844 * PLOGIs during LOGO storms from a device. 845 */ 846 spin_lock_irq(shost->host_lock); 847 ndlp->nlp_flag |= NLP_LOGO_ACC; 848 spin_unlock_irq(shost->host_lock); 849 if (els_cmd == ELS_CMD_PRLO) 850 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 851 else 852 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 853 854 /* Notify transport of connectivity loss to trigger cleanup. */ 855 if (phba->nvmet_support && 856 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) 857 lpfc_nvmet_invalidate_host(phba, ndlp); 858 859 if (ndlp->nlp_DID == Fabric_DID) { 860 if (vport->port_state <= LPFC_FDISC || 861 vport->fc_flag & FC_PT2PT) 862 goto out; 863 lpfc_linkdown_port(vport); 864 spin_lock_irq(shost->host_lock); 865 vport->fc_flag |= FC_VPORT_LOGO_RCVD; 866 spin_unlock_irq(shost->host_lock); 867 vports = lpfc_create_vport_work_array(phba); 868 if (vports) { 869 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 870 i++) { 871 if ((!(vports[i]->fc_flag & 872 FC_VPORT_LOGO_RCVD)) && 873 (vports[i]->port_state > LPFC_FDISC)) { 874 active_vlink_present = 1; 875 break; 876 } 877 } 878 lpfc_destroy_vport_work_array(phba, vports); 879 } 880 881 /* 882 * Don't re-instantiate if vport is marked for deletion. 883 * If we are here first then vport_delete is going to wait 884 * for discovery to complete. 885 */ 886 if (!(vport->load_flag & FC_UNLOADING) && 887 active_vlink_present) { 888 /* 889 * If there are other active VLinks present, 890 * re-instantiate the Vlink using FDISC. 891 */ 892 mod_timer(&ndlp->nlp_delayfunc, 893 jiffies + msecs_to_jiffies(1000)); 894 spin_lock_irq(shost->host_lock); 895 ndlp->nlp_flag |= NLP_DELAY_TMO; 896 spin_unlock_irq(shost->host_lock); 897 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 898 vport->port_state = LPFC_FDISC; 899 } else { 900 spin_lock_irq(shost->host_lock); 901 phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; 902 spin_unlock_irq(shost->host_lock); 903 lpfc_retry_pport_discovery(phba); 904 } 905 } else if ((!(ndlp->nlp_type & NLP_FABRIC) && 906 ((ndlp->nlp_type & NLP_FCP_TARGET) || 907 (ndlp->nlp_type & NLP_NVME_TARGET) || 908 (vport->fc_flag & FC_PT2PT))) || 909 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 910 /* Only try to re-login if this is NOT a Fabric Node 911 * AND the remote NPORT is a FCP/NVME Target or we 912 * are in pt2pt mode. NLP_STE_ADISC_ISSUE is a special 913 * case for LOGO as a response to ADISC behavior. 914 */ 915 mod_timer(&ndlp->nlp_delayfunc, 916 jiffies + msecs_to_jiffies(1000 * 1)); 917 spin_lock_irq(shost->host_lock); 918 ndlp->nlp_flag |= NLP_DELAY_TMO; 919 spin_unlock_irq(shost->host_lock); 920 921 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 922 } 923out: 924 ndlp->nlp_prev_state = ndlp->nlp_state; 925 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 926 927 spin_lock_irq(shost->host_lock); 928 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 929 spin_unlock_irq(shost->host_lock); 930 /* The driver has to wait until the ACC completes before it continues 931 * processing the LOGO. The action will resume in 932 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 933 * unreg_login, the driver waits so the ACC does not get aborted. 934 */ 935 return 0; 936} 937 938static uint32_t 939lpfc_rcv_prli_support_check(struct lpfc_vport *vport, 940 struct lpfc_nodelist *ndlp, 941 struct lpfc_iocbq *cmdiocb) 942{ 943 struct ls_rjt stat; 944 uint32_t *payload; 945 uint32_t cmd; 946 947 payload = ((struct lpfc_dmabuf *)cmdiocb->context2)->virt; 948 cmd = *payload; 949 if (vport->phba->nvmet_support) { 950 /* Must be a NVME PRLI */ 951 if (cmd == ELS_CMD_PRLI) 952 goto out; 953 } else { 954 /* Initiator mode. */ 955 if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) 956 goto out; 957 } 958 return 1; 959out: 960 lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, 961 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " 962 "state x%x flags x%x\n", 963 cmd, ndlp->nlp_rpi, ndlp->nlp_state, 964 ndlp->nlp_flag); 965 memset(&stat, 0, sizeof(struct ls_rjt)); 966 stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; 967 stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; 968 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 969 ndlp, NULL); 970 return 0; 971} 972 973static void 974lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 975 struct lpfc_iocbq *cmdiocb) 976{ 977 struct lpfc_hba *phba = vport->phba; 978 struct lpfc_dmabuf *pcmd; 979 uint32_t *lp; 980 PRLI *npr; 981 struct fc_rport *rport = ndlp->rport; 982 u32 roles; 983 984 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 985 lp = (uint32_t *) pcmd->virt; 986 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 987 988 if ((npr->prliType == PRLI_FCP_TYPE) || 989 (npr->prliType == PRLI_NVME_TYPE)) { 990 if (npr->initiatorFunc) { 991 if (npr->prliType == PRLI_FCP_TYPE) 992 ndlp->nlp_type |= NLP_FCP_INITIATOR; 993 if (npr->prliType == PRLI_NVME_TYPE) 994 ndlp->nlp_type |= NLP_NVME_INITIATOR; 995 } 996 if (npr->targetFunc) { 997 if (npr->prliType == PRLI_FCP_TYPE) 998 ndlp->nlp_type |= NLP_FCP_TARGET; 999 if (npr->prliType == PRLI_NVME_TYPE) 1000 ndlp->nlp_type |= NLP_NVME_TARGET; 1001 if (npr->writeXferRdyDis) 1002 ndlp->nlp_flag |= NLP_FIRSTBURST; 1003 } 1004 if (npr->Retry && ndlp->nlp_type & 1005 (NLP_FCP_INITIATOR | NLP_FCP_TARGET)) 1006 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1007 1008 if (npr->Retry && phba->nsler && 1009 ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET)) 1010 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 1011 1012 1013 /* If this driver is in nvme target mode, set the ndlp's fc4 1014 * type to NVME provided the PRLI response claims NVME FC4 1015 * type. Target mode does not issue gft_id so doesn't get 1016 * the fc4 type set until now. 1017 */ 1018 if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { 1019 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1020 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1021 } 1022 if (npr->prliType == PRLI_FCP_TYPE) 1023 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1024 } 1025 if (rport) { 1026 /* We need to update the rport role values */ 1027 roles = FC_RPORT_ROLE_UNKNOWN; 1028 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 1029 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1030 if (ndlp->nlp_type & NLP_FCP_TARGET) 1031 roles |= FC_RPORT_ROLE_FCP_TARGET; 1032 1033 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 1034 "rport rolechg: role:x%x did:x%x flg:x%x", 1035 roles, ndlp->nlp_DID, ndlp->nlp_flag); 1036 1037 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) 1038 fc_remote_port_rolechg(rport, roles); 1039 } 1040} 1041 1042static uint32_t 1043lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 1044{ 1045 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1046 1047 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { 1048 spin_lock_irq(shost->host_lock); 1049 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1050 spin_unlock_irq(shost->host_lock); 1051 return 0; 1052 } 1053 1054 if (!(vport->fc_flag & FC_PT2PT)) { 1055 /* Check config parameter use-adisc or FCP-2 */ 1056 if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) || 1057 ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && 1058 (ndlp->nlp_type & NLP_FCP_TARGET)))) { 1059 spin_lock_irq(shost->host_lock); 1060 ndlp->nlp_flag |= NLP_NPR_ADISC; 1061 spin_unlock_irq(shost->host_lock); 1062 return 1; 1063 } 1064 } 1065 1066 spin_lock_irq(shost->host_lock); 1067 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1068 spin_unlock_irq(shost->host_lock); 1069 lpfc_unreg_rpi(vport, ndlp); 1070 return 0; 1071} 1072 1073/** 1074 * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. 1075 * @phba : Pointer to lpfc_hba structure. 1076 * @vport: Pointer to lpfc_vport structure. 1077 * @ndlp: Pointer to lpfc_nodelist structure. 1078 * @rpi : rpi to be release. 1079 * 1080 * This function will send a unreg_login mailbox command to the firmware 1081 * to release a rpi. 1082 **/ 1083static void 1084lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, 1085 struct lpfc_nodelist *ndlp, uint16_t rpi) 1086{ 1087 LPFC_MBOXQ_t *pmb; 1088 int rc; 1089 1090 /* If there is already an UNREG in progress for this ndlp, 1091 * no need to queue up another one. 1092 */ 1093 if (ndlp->nlp_flag & NLP_UNREG_INP) { 1094 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1095 "1435 release_rpi SKIP UNREG x%x on " 1096 "NPort x%x deferred x%x flg x%x " 1097 "Data: x%px\n", 1098 ndlp->nlp_rpi, ndlp->nlp_DID, 1099 ndlp->nlp_defer_did, 1100 ndlp->nlp_flag, ndlp); 1101 return; 1102 } 1103 1104 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 1105 GFP_KERNEL); 1106 if (!pmb) 1107 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1108 "2796 mailbox memory allocation failed \n"); 1109 else { 1110 lpfc_unreg_login(phba, vport->vpi, rpi, pmb); 1111 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1112 pmb->vport = vport; 1113 pmb->ctx_ndlp = ndlp; 1114 1115 if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && 1116 (!(vport->fc_flag & FC_OFFLINE_MODE))) 1117 ndlp->nlp_flag |= NLP_UNREG_INP; 1118 1119 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1120 "1437 release_rpi UNREG x%x " 1121 "on NPort x%x flg x%x\n", 1122 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); 1123 1124 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 1125 if (rc == MBX_NOT_FINISHED) 1126 mempool_free(pmb, phba->mbox_mem_pool); 1127 } 1128} 1129 1130static uint32_t 1131lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1132 void *arg, uint32_t evt) 1133{ 1134 struct lpfc_hba *phba; 1135 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1136 uint16_t rpi; 1137 1138 phba = vport->phba; 1139 /* Release the RPI if reglogin completing */ 1140 if (!(phba->pport->load_flag & FC_UNLOADING) && 1141 (evt == NLP_EVT_CMPL_REG_LOGIN) && 1142 (!pmb->u.mb.mbxStatus)) { 1143 rpi = pmb->u.mb.un.varWords[0]; 1144 lpfc_release_rpi(phba, vport, ndlp, rpi); 1145 } 1146 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1147 "0271 Illegal State Transition: node x%x " 1148 "event x%x, state x%x Data: x%x x%x\n", 1149 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 1150 ndlp->nlp_flag); 1151 return ndlp->nlp_state; 1152} 1153 1154static uint32_t 1155lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1156 void *arg, uint32_t evt) 1157{ 1158 /* This transition is only legal if we previously 1159 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 1160 * working on the same NPortID, do nothing for this thread 1161 * to stop it. 1162 */ 1163 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 1164 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1165 "0272 Illegal State Transition: node x%x " 1166 "event x%x, state x%x Data: x%x x%x\n", 1167 ndlp->nlp_DID, evt, ndlp->nlp_state, 1168 ndlp->nlp_rpi, ndlp->nlp_flag); 1169 } 1170 return ndlp->nlp_state; 1171} 1172 1173/* Start of Discovery State Machine routines */ 1174 1175static uint32_t 1176lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1177 void *arg, uint32_t evt) 1178{ 1179 struct lpfc_iocbq *cmdiocb; 1180 1181 cmdiocb = (struct lpfc_iocbq *) arg; 1182 1183 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1184 return ndlp->nlp_state; 1185 } 1186 return NLP_STE_FREED_NODE; 1187} 1188 1189static uint32_t 1190lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1191 void *arg, uint32_t evt) 1192{ 1193 lpfc_issue_els_logo(vport, ndlp, 0); 1194 return ndlp->nlp_state; 1195} 1196 1197static uint32_t 1198lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1199 void *arg, uint32_t evt) 1200{ 1201 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1202 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1203 1204 spin_lock_irq(shost->host_lock); 1205 ndlp->nlp_flag |= NLP_LOGO_ACC; 1206 spin_unlock_irq(shost->host_lock); 1207 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1208 1209 return ndlp->nlp_state; 1210} 1211 1212static uint32_t 1213lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1214 void *arg, uint32_t evt) 1215{ 1216 return NLP_STE_FREED_NODE; 1217} 1218 1219static uint32_t 1220lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1221 void *arg, uint32_t evt) 1222{ 1223 return NLP_STE_FREED_NODE; 1224} 1225 1226static uint32_t 1227lpfc_device_recov_unused_node(struct lpfc_vport *vport, 1228 struct lpfc_nodelist *ndlp, 1229 void *arg, uint32_t evt) 1230{ 1231 return ndlp->nlp_state; 1232} 1233 1234static uint32_t 1235lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1236 void *arg, uint32_t evt) 1237{ 1238 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1239 struct lpfc_hba *phba = vport->phba; 1240 struct lpfc_iocbq *cmdiocb = arg; 1241 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1242 uint32_t *lp = (uint32_t *) pcmd->virt; 1243 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 1244 struct ls_rjt stat; 1245 int port_cmp; 1246 1247 memset(&stat, 0, sizeof (struct ls_rjt)); 1248 1249 /* For a PLOGI, we only accept if our portname is less 1250 * than the remote portname. 1251 */ 1252 phba->fc_stat.elsLogiCol++; 1253 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 1254 sizeof(struct lpfc_name)); 1255 1256 if (port_cmp >= 0) { 1257 /* Reject this request because the remote node will accept 1258 ours */ 1259 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1260 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 1261 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 1262 NULL); 1263 } else { 1264 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && 1265 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 1266 (vport->num_disc_nodes)) { 1267 spin_lock_irq(shost->host_lock); 1268 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1269 spin_unlock_irq(shost->host_lock); 1270 /* Check if there are more PLOGIs to be sent */ 1271 lpfc_more_plogi(vport); 1272 if (vport->num_disc_nodes == 0) { 1273 spin_lock_irq(shost->host_lock); 1274 vport->fc_flag &= ~FC_NDISC_ACTIVE; 1275 spin_unlock_irq(shost->host_lock); 1276 lpfc_can_disctmo(vport); 1277 lpfc_end_rscn(vport); 1278 } 1279 } 1280 } /* If our portname was less */ 1281 1282 return ndlp->nlp_state; 1283} 1284 1285static uint32_t 1286lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1287 void *arg, uint32_t evt) 1288{ 1289 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1290 struct ls_rjt stat; 1291 1292 memset(&stat, 0, sizeof (struct ls_rjt)); 1293 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1294 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1295 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1296 return ndlp->nlp_state; 1297} 1298 1299static uint32_t 1300lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1301 void *arg, uint32_t evt) 1302{ 1303 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1304 1305 /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ 1306 if (vport->phba->sli_rev == LPFC_SLI_REV3) 1307 ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; 1308 /* software abort outstanding PLOGI */ 1309 lpfc_els_abort(vport->phba, ndlp); 1310 1311 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1312 return ndlp->nlp_state; 1313} 1314 1315static uint32_t 1316lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1317 void *arg, uint32_t evt) 1318{ 1319 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1320 struct lpfc_hba *phba = vport->phba; 1321 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1322 1323 /* software abort outstanding PLOGI */ 1324 lpfc_els_abort(phba, ndlp); 1325 1326 if (evt == NLP_EVT_RCV_LOGO) { 1327 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1328 } else { 1329 lpfc_issue_els_logo(vport, ndlp, 0); 1330 } 1331 1332 /* Put ndlp in npr state set plogi timer for 1 sec */ 1333 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); 1334 spin_lock_irq(shost->host_lock); 1335 ndlp->nlp_flag |= NLP_DELAY_TMO; 1336 spin_unlock_irq(shost->host_lock); 1337 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1338 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1339 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1340 1341 return ndlp->nlp_state; 1342} 1343 1344static uint32_t 1345lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 1346 struct lpfc_nodelist *ndlp, 1347 void *arg, 1348 uint32_t evt) 1349{ 1350 struct lpfc_hba *phba = vport->phba; 1351 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1352 struct lpfc_iocbq *cmdiocb, *rspiocb; 1353 struct lpfc_dmabuf *pcmd, *prsp, *mp; 1354 uint32_t *lp; 1355 uint32_t vid, flag; 1356 IOCB_t *irsp; 1357 struct serv_parm *sp; 1358 uint32_t ed_tov; 1359 LPFC_MBOXQ_t *mbox; 1360 int rc; 1361 1362 cmdiocb = (struct lpfc_iocbq *) arg; 1363 rspiocb = cmdiocb->context_un.rsp_iocb; 1364 1365 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 1366 /* Recovery from PLOGI collision logic */ 1367 return ndlp->nlp_state; 1368 } 1369 1370 irsp = &rspiocb->iocb; 1371 1372 if (irsp->ulpStatus) 1373 goto out; 1374 1375 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 1376 1377 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 1378 if (!prsp) 1379 goto out; 1380 1381 lp = (uint32_t *) prsp->virt; 1382 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 1383 1384 /* Some switches have FDMI servers returning 0 for WWN */ 1385 if ((ndlp->nlp_DID != FDMI_DID) && 1386 (wwn_to_u64(sp->portName.u.wwn) == 0 || 1387 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 1388 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1389 "0142 PLOGI RSP: Invalid WWN.\n"); 1390 goto out; 1391 } 1392 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) 1393 goto out; 1394 /* PLOGI chkparm OK */ 1395 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 1396 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 1397 ndlp->nlp_DID, ndlp->nlp_state, 1398 ndlp->nlp_flag, ndlp->nlp_rpi); 1399 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 1400 ndlp->nlp_fcp_info |= CLASS2; 1401 else 1402 ndlp->nlp_fcp_info |= CLASS3; 1403 1404 ndlp->nlp_class_sup = 0; 1405 if (sp->cls1.classValid) 1406 ndlp->nlp_class_sup |= FC_COS_CLASS1; 1407 if (sp->cls2.classValid) 1408 ndlp->nlp_class_sup |= FC_COS_CLASS2; 1409 if (sp->cls3.classValid) 1410 ndlp->nlp_class_sup |= FC_COS_CLASS3; 1411 if (sp->cls4.classValid) 1412 ndlp->nlp_class_sup |= FC_COS_CLASS4; 1413 ndlp->nlp_maxframe = 1414 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 1415 1416 if ((vport->fc_flag & FC_PT2PT) && 1417 (vport->fc_flag & FC_PT2PT_PLOGI)) { 1418 ed_tov = be32_to_cpu(sp->cmn.e_d_tov); 1419 if (sp->cmn.edtovResolution) { 1420 /* E_D_TOV ticks are in nanoseconds */ 1421 ed_tov = (phba->fc_edtov + 999999) / 1000000; 1422 } 1423 1424 ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; 1425 if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && 1426 sp->cmn.valid_vendor_ver_level) { 1427 vid = be32_to_cpu(sp->un.vv.vid); 1428 flag = be32_to_cpu(sp->un.vv.flags); 1429 if ((vid == LPFC_VV_EMLX_ID) && 1430 (flag & LPFC_VV_SUPPRESS_RSP)) 1431 ndlp->nlp_flag |= NLP_SUPPRESS_RSP; 1432 } 1433 1434 /* 1435 * Use the larger EDTOV 1436 * RATOV = 2 * EDTOV for pt-to-pt 1437 */ 1438 if (ed_tov > phba->fc_edtov) 1439 phba->fc_edtov = ed_tov; 1440 phba->fc_ratov = (2 * phba->fc_edtov) / 1000; 1441 1442 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); 1443 1444 /* Issue config_link / reg_vfi to account for updated TOV's */ 1445 if (phba->sli_rev == LPFC_SLI_REV4) { 1446 lpfc_issue_reg_vfi(vport); 1447 } else { 1448 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1449 if (!mbox) { 1450 lpfc_printf_vlog(vport, KERN_ERR, 1451 LOG_TRACE_EVENT, 1452 "0133 PLOGI: no memory " 1453 "for config_link " 1454 "Data: x%x x%x x%x x%x\n", 1455 ndlp->nlp_DID, ndlp->nlp_state, 1456 ndlp->nlp_flag, ndlp->nlp_rpi); 1457 goto out; 1458 } 1459 1460 lpfc_config_link(phba, mbox); 1461 1462 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1463 mbox->vport = vport; 1464 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 1465 if (rc == MBX_NOT_FINISHED) { 1466 mempool_free(mbox, phba->mbox_mem_pool); 1467 goto out; 1468 } 1469 } 1470 } 1471 1472 lpfc_unreg_rpi(vport, ndlp); 1473 1474 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1475 if (!mbox) { 1476 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1477 "0018 PLOGI: no memory for reg_login " 1478 "Data: x%x x%x x%x x%x\n", 1479 ndlp->nlp_DID, ndlp->nlp_state, 1480 ndlp->nlp_flag, ndlp->nlp_rpi); 1481 goto out; 1482 } 1483 1484 if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, 1485 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { 1486 switch (ndlp->nlp_DID) { 1487 case NameServer_DID: 1488 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 1489 break; 1490 case FDMI_DID: 1491 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 1492 break; 1493 default: 1494 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; 1495 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 1496 } 1497 mbox->ctx_ndlp = lpfc_nlp_get(ndlp); 1498 mbox->vport = vport; 1499 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 1500 != MBX_NOT_FINISHED) { 1501 lpfc_nlp_set_state(vport, ndlp, 1502 NLP_STE_REG_LOGIN_ISSUE); 1503 return ndlp->nlp_state; 1504 } 1505 if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) 1506 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1507 /* decrement node reference count to the failed mbox 1508 * command 1509 */ 1510 lpfc_nlp_put(ndlp); 1511 mp = (struct lpfc_dmabuf *)mbox->ctx_buf; 1512 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1513 kfree(mp); 1514 mempool_free(mbox, phba->mbox_mem_pool); 1515 1516 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1517 "0134 PLOGI: cannot issue reg_login " 1518 "Data: x%x x%x x%x x%x\n", 1519 ndlp->nlp_DID, ndlp->nlp_state, 1520 ndlp->nlp_flag, ndlp->nlp_rpi); 1521 } else { 1522 mempool_free(mbox, phba->mbox_mem_pool); 1523 1524 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1525 "0135 PLOGI: cannot format reg_login " 1526 "Data: x%x x%x x%x x%x\n", 1527 ndlp->nlp_DID, ndlp->nlp_state, 1528 ndlp->nlp_flag, ndlp->nlp_rpi); 1529 } 1530 1531 1532out: 1533 if (ndlp->nlp_DID == NameServer_DID) { 1534 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 1535 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1536 "0261 Cannot Register NameServer login\n"); 1537 } 1538 1539 /* 1540 ** In case the node reference counter does not go to zero, ensure that 1541 ** the stale state for the node is not processed. 1542 */ 1543 1544 ndlp->nlp_prev_state = ndlp->nlp_state; 1545 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1546 spin_lock_irq(shost->host_lock); 1547 ndlp->nlp_flag |= NLP_DEFER_RM; 1548 spin_unlock_irq(shost->host_lock); 1549 return NLP_STE_FREED_NODE; 1550} 1551 1552static uint32_t 1553lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1554 void *arg, uint32_t evt) 1555{ 1556 return ndlp->nlp_state; 1557} 1558 1559static uint32_t 1560lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 1561 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 1562{ 1563 struct lpfc_hba *phba; 1564 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1565 MAILBOX_t *mb = &pmb->u.mb; 1566 uint16_t rpi; 1567 1568 phba = vport->phba; 1569 /* Release the RPI */ 1570 if (!(phba->pport->load_flag & FC_UNLOADING) && 1571 !mb->mbxStatus) { 1572 rpi = pmb->u.mb.un.varWords[0]; 1573 lpfc_release_rpi(phba, vport, ndlp, rpi); 1574 } 1575 return ndlp->nlp_state; 1576} 1577 1578static uint32_t 1579lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1580 void *arg, uint32_t evt) 1581{ 1582 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1583 1584 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1585 spin_lock_irq(shost->host_lock); 1586 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1587 spin_unlock_irq(shost->host_lock); 1588 return ndlp->nlp_state; 1589 } else { 1590 /* software abort outstanding PLOGI */ 1591 lpfc_els_abort(vport->phba, ndlp); 1592 1593 lpfc_drop_node(vport, ndlp); 1594 return NLP_STE_FREED_NODE; 1595 } 1596} 1597 1598static uint32_t 1599lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1600 struct lpfc_nodelist *ndlp, 1601 void *arg, 1602 uint32_t evt) 1603{ 1604 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1605 struct lpfc_hba *phba = vport->phba; 1606 1607 /* Don't do anything that will mess up processing of the 1608 * previous RSCN. 1609 */ 1610 if (vport->fc_flag & FC_RSCN_DEFERRED) 1611 return ndlp->nlp_state; 1612 1613 /* software abort outstanding PLOGI */ 1614 lpfc_els_abort(phba, ndlp); 1615 1616 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1617 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1618 spin_lock_irq(shost->host_lock); 1619 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1620 spin_unlock_irq(shost->host_lock); 1621 1622 return ndlp->nlp_state; 1623} 1624 1625static uint32_t 1626lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1627 void *arg, uint32_t evt) 1628{ 1629 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1630 struct lpfc_hba *phba = vport->phba; 1631 struct lpfc_iocbq *cmdiocb; 1632 1633 /* software abort outstanding ADISC */ 1634 lpfc_els_abort(phba, ndlp); 1635 1636 cmdiocb = (struct lpfc_iocbq *) arg; 1637 1638 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1639 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1640 spin_lock_irq(shost->host_lock); 1641 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1642 spin_unlock_irq(shost->host_lock); 1643 if (vport->num_disc_nodes) 1644 lpfc_more_adisc(vport); 1645 } 1646 return ndlp->nlp_state; 1647 } 1648 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1649 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1650 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1651 1652 return ndlp->nlp_state; 1653} 1654 1655static uint32_t 1656lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1657 void *arg, uint32_t evt) 1658{ 1659 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1660 1661 if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 1662 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1663 return ndlp->nlp_state; 1664} 1665 1666static uint32_t 1667lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1668 void *arg, uint32_t evt) 1669{ 1670 struct lpfc_hba *phba = vport->phba; 1671 struct lpfc_iocbq *cmdiocb; 1672 1673 cmdiocb = (struct lpfc_iocbq *) arg; 1674 1675 /* software abort outstanding ADISC */ 1676 lpfc_els_abort(phba, ndlp); 1677 1678 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1679 return ndlp->nlp_state; 1680} 1681 1682static uint32_t 1683lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1684 struct lpfc_nodelist *ndlp, 1685 void *arg, uint32_t evt) 1686{ 1687 struct lpfc_iocbq *cmdiocb; 1688 1689 cmdiocb = (struct lpfc_iocbq *) arg; 1690 1691 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1692 return ndlp->nlp_state; 1693} 1694 1695static uint32_t 1696lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1697 void *arg, uint32_t evt) 1698{ 1699 struct lpfc_iocbq *cmdiocb; 1700 1701 cmdiocb = (struct lpfc_iocbq *) arg; 1702 1703 /* Treat like rcv logo */ 1704 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1705 return ndlp->nlp_state; 1706} 1707 1708static uint32_t 1709lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1710 struct lpfc_nodelist *ndlp, 1711 void *arg, uint32_t evt) 1712{ 1713 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1714 struct lpfc_hba *phba = vport->phba; 1715 struct lpfc_iocbq *cmdiocb, *rspiocb; 1716 IOCB_t *irsp; 1717 ADISC *ap; 1718 int rc; 1719 1720 cmdiocb = (struct lpfc_iocbq *) arg; 1721 rspiocb = cmdiocb->context_un.rsp_iocb; 1722 1723 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1724 irsp = &rspiocb->iocb; 1725 1726 if ((irsp->ulpStatus) || 1727 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1728 /* 1 sec timeout */ 1729 mod_timer(&ndlp->nlp_delayfunc, 1730 jiffies + msecs_to_jiffies(1000)); 1731 spin_lock_irq(shost->host_lock); 1732 ndlp->nlp_flag |= NLP_DELAY_TMO; 1733 spin_unlock_irq(shost->host_lock); 1734 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1735 1736 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1737 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1738 1739 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1740 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1741 lpfc_unreg_rpi(vport, ndlp); 1742 return ndlp->nlp_state; 1743 } 1744 1745 if (phba->sli_rev == LPFC_SLI_REV4) { 1746 rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); 1747 if (rc) { 1748 /* Stay in state and retry. */ 1749 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1750 return ndlp->nlp_state; 1751 } 1752 } 1753 1754 if (ndlp->nlp_type & NLP_FCP_TARGET) 1755 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 1756 1757 if (ndlp->nlp_type & NLP_NVME_TARGET) 1758 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 1759 1760 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) { 1761 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1762 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1763 } else { 1764 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1765 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1766 } 1767 1768 return ndlp->nlp_state; 1769} 1770 1771static uint32_t 1772lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1773 void *arg, uint32_t evt) 1774{ 1775 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1776 1777 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1778 spin_lock_irq(shost->host_lock); 1779 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1780 spin_unlock_irq(shost->host_lock); 1781 return ndlp->nlp_state; 1782 } else { 1783 /* software abort outstanding ADISC */ 1784 lpfc_els_abort(vport->phba, ndlp); 1785 1786 lpfc_drop_node(vport, ndlp); 1787 return NLP_STE_FREED_NODE; 1788 } 1789} 1790 1791static uint32_t 1792lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1793 struct lpfc_nodelist *ndlp, 1794 void *arg, 1795 uint32_t evt) 1796{ 1797 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1798 struct lpfc_hba *phba = vport->phba; 1799 1800 /* Don't do anything that will mess up processing of the 1801 * previous RSCN. 1802 */ 1803 if (vport->fc_flag & FC_RSCN_DEFERRED) 1804 return ndlp->nlp_state; 1805 1806 /* software abort outstanding ADISC */ 1807 lpfc_els_abort(phba, ndlp); 1808 1809 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1810 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1811 spin_lock_irq(shost->host_lock); 1812 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1813 spin_unlock_irq(shost->host_lock); 1814 lpfc_disc_set_adisc(vport, ndlp); 1815 return ndlp->nlp_state; 1816} 1817 1818static uint32_t 1819lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1820 struct lpfc_nodelist *ndlp, 1821 void *arg, 1822 uint32_t evt) 1823{ 1824 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1825 1826 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1827 return ndlp->nlp_state; 1828} 1829 1830static uint32_t 1831lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1832 struct lpfc_nodelist *ndlp, 1833 void *arg, 1834 uint32_t evt) 1835{ 1836 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1837 struct ls_rjt stat; 1838 1839 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { 1840 return ndlp->nlp_state; 1841 } 1842 if (vport->phba->nvmet_support) { 1843 /* NVME Target mode. Handle and respond to the PRLI and 1844 * transition to UNMAPPED provided the RPI has completed 1845 * registration. 1846 */ 1847 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { 1848 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1849 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1850 } else { 1851 /* RPI registration has not completed. Reject the PRLI 1852 * to prevent an illegal state transition when the 1853 * rpi registration does complete. 1854 */ 1855 memset(&stat, 0, sizeof(struct ls_rjt)); 1856 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 1857 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1858 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 1859 ndlp, NULL); 1860 return ndlp->nlp_state; 1861 } 1862 } else { 1863 /* Initiator mode. */ 1864 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1865 } 1866 return ndlp->nlp_state; 1867} 1868 1869static uint32_t 1870lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1871 struct lpfc_nodelist *ndlp, 1872 void *arg, 1873 uint32_t evt) 1874{ 1875 struct lpfc_hba *phba = vport->phba; 1876 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1877 LPFC_MBOXQ_t *mb; 1878 LPFC_MBOXQ_t *nextmb; 1879 struct lpfc_dmabuf *mp; 1880 struct lpfc_nodelist *ns_ndlp; 1881 1882 cmdiocb = (struct lpfc_iocbq *) arg; 1883 1884 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1885 if ((mb = phba->sli.mbox_active)) { 1886 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1887 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1888 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1889 lpfc_nlp_put(ndlp); 1890 mb->ctx_ndlp = NULL; 1891 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1892 } 1893 } 1894 1895 spin_lock_irq(&phba->hbalock); 1896 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1897 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && 1898 (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { 1899 mp = (struct lpfc_dmabuf *)(mb->ctx_buf); 1900 if (mp) { 1901 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1902 kfree(mp); 1903 } 1904 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; 1905 lpfc_nlp_put(ndlp); 1906 list_del(&mb->list); 1907 phba->sli.mboxq_cnt--; 1908 mempool_free(mb, phba->mbox_mem_pool); 1909 } 1910 } 1911 spin_unlock_irq(&phba->hbalock); 1912 1913 /* software abort if any GID_FT is outstanding */ 1914 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 1915 ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); 1916 if (ns_ndlp && NLP_CHK_NODE_ACT(ns_ndlp)) 1917 lpfc_els_abort(phba, ns_ndlp); 1918 } 1919 1920 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1921 return ndlp->nlp_state; 1922} 1923 1924static uint32_t 1925lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1926 struct lpfc_nodelist *ndlp, 1927 void *arg, 1928 uint32_t evt) 1929{ 1930 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1931 1932 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1933 return ndlp->nlp_state; 1934} 1935 1936static uint32_t 1937lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1938 struct lpfc_nodelist *ndlp, 1939 void *arg, 1940 uint32_t evt) 1941{ 1942 struct lpfc_iocbq *cmdiocb; 1943 1944 cmdiocb = (struct lpfc_iocbq *) arg; 1945 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1946 return ndlp->nlp_state; 1947} 1948 1949static uint32_t 1950lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1951 struct lpfc_nodelist *ndlp, 1952 void *arg, 1953 uint32_t evt) 1954{ 1955 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1956 struct lpfc_hba *phba = vport->phba; 1957 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1958 MAILBOX_t *mb = &pmb->u.mb; 1959 uint32_t did = mb->un.varWords[1]; 1960 1961 if (mb->mbxStatus) { 1962 /* RegLogin failed */ 1963 lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, 1964 "0246 RegLogin failed Data: x%x x%x x%x x%x " 1965 "x%x\n", 1966 did, mb->mbxStatus, vport->port_state, 1967 mb->un.varRegLogin.vpi, 1968 mb->un.varRegLogin.rpi); 1969 /* 1970 * If RegLogin failed due to lack of HBA resources do not 1971 * retry discovery. 1972 */ 1973 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1974 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1975 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1976 return ndlp->nlp_state; 1977 } 1978 1979 /* Put ndlp in npr state set plogi timer for 1 sec */ 1980 mod_timer(&ndlp->nlp_delayfunc, 1981 jiffies + msecs_to_jiffies(1000 * 1)); 1982 spin_lock_irq(shost->host_lock); 1983 ndlp->nlp_flag |= NLP_DELAY_TMO; 1984 spin_unlock_irq(shost->host_lock); 1985 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1986 1987 lpfc_issue_els_logo(vport, ndlp, 0); 1988 return ndlp->nlp_state; 1989 } 1990 1991 /* SLI4 ports have preallocated logical rpis. */ 1992 if (phba->sli_rev < LPFC_SLI_REV4) 1993 ndlp->nlp_rpi = mb->un.varWords[0]; 1994 1995 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 1996 1997 /* Only if we are not a fabric nport do we issue PRLI */ 1998 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 1999 "3066 RegLogin Complete on x%x x%x x%x\n", 2000 did, ndlp->nlp_type, ndlp->nlp_fc4_type); 2001 if (!(ndlp->nlp_type & NLP_FABRIC) && 2002 (phba->nvmet_support == 0)) { 2003 /* The driver supports FCP and NVME concurrently. If the 2004 * ndlp's nlp_fc4_type is still zero, the driver doesn't 2005 * know what PRLI to send yet. Figure that out now and 2006 * call PRLI depending on the outcome. 2007 */ 2008 if (vport->fc_flag & FC_PT2PT) { 2009 /* If we are pt2pt, there is no Fabric to determine 2010 * the FC4 type of the remote nport. So if NVME 2011 * is configured try it. 2012 */ 2013 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 2014 if ((!(vport->fc_flag & FC_PT2PT_NO_NVME)) && 2015 (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH || 2016 vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { 2017 ndlp->nlp_fc4_type |= NLP_FC4_NVME; 2018 /* We need to update the localport also */ 2019 lpfc_nvme_update_localport(vport); 2020 } 2021 2022 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 2023 ndlp->nlp_fc4_type |= NLP_FC4_FCP; 2024 2025 } else if (ndlp->nlp_fc4_type == 0) { 2026 /* If we are only configured for FCP, the driver 2027 * should just issue PRLI for FCP. Otherwise issue 2028 * GFT_ID to determine if remote port supports NVME. 2029 */ 2030 if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { 2031 lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, 2032 ndlp->nlp_DID); 2033 return ndlp->nlp_state; 2034 } 2035 ndlp->nlp_fc4_type = NLP_FC4_FCP; 2036 } 2037 2038 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2039 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 2040 if (lpfc_issue_els_prli(vport, ndlp, 0)) { 2041 lpfc_issue_els_logo(vport, ndlp, 0); 2042 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2043 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2044 } 2045 } else { 2046 if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) 2047 phba->targetport->port_id = vport->fc_myDID; 2048 2049 /* Only Fabric ports should transition. NVME target 2050 * must complete PRLI. 2051 */ 2052 if (ndlp->nlp_type & NLP_FABRIC) { 2053 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2054 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2055 } 2056 } 2057 return ndlp->nlp_state; 2058} 2059 2060static uint32_t 2061lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 2062 struct lpfc_nodelist *ndlp, 2063 void *arg, 2064 uint32_t evt) 2065{ 2066 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2067 2068 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2069 spin_lock_irq(shost->host_lock); 2070 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2071 spin_unlock_irq(shost->host_lock); 2072 return ndlp->nlp_state; 2073 } else { 2074 lpfc_drop_node(vport, ndlp); 2075 return NLP_STE_FREED_NODE; 2076 } 2077} 2078 2079static uint32_t 2080lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 2081 struct lpfc_nodelist *ndlp, 2082 void *arg, 2083 uint32_t evt) 2084{ 2085 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2086 2087 /* Don't do anything that will mess up processing of the 2088 * previous RSCN. 2089 */ 2090 if (vport->fc_flag & FC_RSCN_DEFERRED) 2091 return ndlp->nlp_state; 2092 2093 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 2094 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2095 spin_lock_irq(shost->host_lock); 2096 2097 /* If we are a target we won't immediately transition into PRLI, 2098 * so if REG_LOGIN already completed we don't need to ignore it. 2099 */ 2100 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || 2101 !vport->phba->nvmet_support) 2102 ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; 2103 2104 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2105 spin_unlock_irq(shost->host_lock); 2106 lpfc_disc_set_adisc(vport, ndlp); 2107 return ndlp->nlp_state; 2108} 2109 2110static uint32_t 2111lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2112 void *arg, uint32_t evt) 2113{ 2114 struct lpfc_iocbq *cmdiocb; 2115 2116 cmdiocb = (struct lpfc_iocbq *) arg; 2117 2118 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2119 return ndlp->nlp_state; 2120} 2121 2122static uint32_t 2123lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2124 void *arg, uint32_t evt) 2125{ 2126 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2127 2128 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2129 return ndlp->nlp_state; 2130 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2131 return ndlp->nlp_state; 2132} 2133 2134static uint32_t 2135lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2136 void *arg, uint32_t evt) 2137{ 2138 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2139 2140 /* Software abort outstanding PRLI before sending acc */ 2141 lpfc_els_abort(vport->phba, ndlp); 2142 2143 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2144 return ndlp->nlp_state; 2145} 2146 2147static uint32_t 2148lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2149 void *arg, uint32_t evt) 2150{ 2151 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2152 2153 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2154 return ndlp->nlp_state; 2155} 2156 2157/* This routine is envoked when we rcv a PRLO request from a nport 2158 * we are logged into. We should send back a PRLO rsp setting the 2159 * appropriate bits. 2160 * NEXT STATE = PRLI_ISSUE 2161 */ 2162static uint32_t 2163lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2164 void *arg, uint32_t evt) 2165{ 2166 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2167 2168 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2169 return ndlp->nlp_state; 2170} 2171 2172static uint32_t 2173lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2174 void *arg, uint32_t evt) 2175{ 2176 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2177 struct lpfc_iocbq *cmdiocb, *rspiocb; 2178 struct lpfc_hba *phba = vport->phba; 2179 IOCB_t *irsp; 2180 PRLI *npr; 2181 struct lpfc_nvme_prli *nvpr; 2182 void *temp_ptr; 2183 2184 cmdiocb = (struct lpfc_iocbq *) arg; 2185 rspiocb = cmdiocb->context_un.rsp_iocb; 2186 2187 /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp 2188 * format is different so NULL the two PRLI types so that the 2189 * driver correctly gets the correct context. 2190 */ 2191 npr = NULL; 2192 nvpr = NULL; 2193 temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 2194 if (cmdiocb->iocb_flag & LPFC_PRLI_FCP_REQ) 2195 npr = (PRLI *) temp_ptr; 2196 else if (cmdiocb->iocb_flag & LPFC_PRLI_NVME_REQ) 2197 nvpr = (struct lpfc_nvme_prli *) temp_ptr; 2198 2199 irsp = &rspiocb->iocb; 2200 if (irsp->ulpStatus) { 2201 if ((vport->port_type == LPFC_NPIV_PORT) && 2202 vport->cfg_restrict_login) { 2203 goto out; 2204 } 2205 2206 /* Adjust the nlp_type accordingly if the PRLI failed */ 2207 if (npr) 2208 ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; 2209 if (nvpr) 2210 ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; 2211 2212 /* We can't set the DSM state till BOTH PRLIs complete */ 2213 goto out_err; 2214 } 2215 2216 if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) && 2217 (npr->prliType == PRLI_FCP_TYPE)) { 2218 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2219 "6028 FCP NPR PRLI Cmpl Init %d Target %d\n", 2220 npr->initiatorFunc, 2221 npr->targetFunc); 2222 if (npr->initiatorFunc) 2223 ndlp->nlp_type |= NLP_FCP_INITIATOR; 2224 if (npr->targetFunc) { 2225 ndlp->nlp_type |= NLP_FCP_TARGET; 2226 if (npr->writeXferRdyDis) 2227 ndlp->nlp_flag |= NLP_FIRSTBURST; 2228 } 2229 if (npr->Retry) 2230 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 2231 2232 } else if (nvpr && 2233 (bf_get_be32(prli_acc_rsp_code, nvpr) == 2234 PRLI_REQ_EXECUTED) && 2235 (bf_get_be32(prli_type_code, nvpr) == 2236 PRLI_NVME_TYPE)) { 2237 2238 /* Complete setting up the remote ndlp personality. */ 2239 if (bf_get_be32(prli_init, nvpr)) 2240 ndlp->nlp_type |= NLP_NVME_INITIATOR; 2241 2242 if (phba->nsler && bf_get_be32(prli_nsler, nvpr) && 2243 bf_get_be32(prli_conf, nvpr)) 2244 2245 ndlp->nlp_nvme_info |= NLP_NVME_NSLER; 2246 else 2247 ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER; 2248 2249 /* Target driver cannot solicit NVME FB. */ 2250 if (bf_get_be32(prli_tgt, nvpr)) { 2251 /* Complete the nvme target roles. The transport 2252 * needs to know if the rport is capable of 2253 * discovery in addition to its role. 2254 */ 2255 ndlp->nlp_type |= NLP_NVME_TARGET; 2256 if (bf_get_be32(prli_disc, nvpr)) 2257 ndlp->nlp_type |= NLP_NVME_DISCOVERY; 2258 2259 /* 2260 * If prli_fba is set, the Target supports FirstBurst. 2261 * If prli_fb_sz is 0, the FirstBurst size is unlimited, 2262 * otherwise it defines the actual size supported by 2263 * the NVME Target. 2264 */ 2265 if ((bf_get_be32(prli_fba, nvpr) == 1) && 2266 (phba->cfg_nvme_enable_fb) && 2267 (!phba->nvmet_support)) { 2268 /* Both sides support FB. The target's first 2269 * burst size is a 512 byte encoded value. 2270 */ 2271 ndlp->nlp_flag |= NLP_FIRSTBURST; 2272 ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, 2273 nvpr); 2274 2275 /* Expressed in units of 512 bytes */ 2276 if (ndlp->nvme_fb_size) 2277 ndlp->nvme_fb_size <<= 2278 LPFC_NVME_FB_SHIFT; 2279 else 2280 ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; 2281 } 2282 } 2283 2284 lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, 2285 "6029 NVME PRLI Cmpl w1 x%08x " 2286 "w4 x%08x w5 x%08x flag x%x, " 2287 "fcp_info x%x nlp_type x%x\n", 2288 be32_to_cpu(nvpr->word1), 2289 be32_to_cpu(nvpr->word4), 2290 be32_to_cpu(nvpr->word5), 2291 ndlp->nlp_flag, ndlp->nlp_fcp_info, 2292 ndlp->nlp_type); 2293 } 2294 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 2295 (vport->port_type == LPFC_NPIV_PORT) && 2296 vport->cfg_restrict_login) { 2297out: 2298 spin_lock_irq(shost->host_lock); 2299 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 2300 spin_unlock_irq(shost->host_lock); 2301 lpfc_issue_els_logo(vport, ndlp, 0); 2302 2303 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2304 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2305 return ndlp->nlp_state; 2306 } 2307 2308out_err: 2309 /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs 2310 * are complete. 2311 */ 2312 if (ndlp->fc4_prli_sent == 0) { 2313 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2314 if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) 2315 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 2316 else if (ndlp->nlp_type & 2317 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) 2318 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 2319 } else 2320 lpfc_printf_vlog(vport, 2321 KERN_INFO, LOG_ELS, 2322 "3067 PRLI's still outstanding " 2323 "on x%06x - count %d, Pend Node Mode " 2324 "transition...\n", 2325 ndlp->nlp_DID, ndlp->fc4_prli_sent); 2326 2327 return ndlp->nlp_state; 2328} 2329 2330/*! lpfc_device_rm_prli_issue 2331 * 2332 * \pre 2333 * \post 2334 * \param phba 2335 * \param ndlp 2336 * \param arg 2337 * \param evt 2338 * \return uint32_t 2339 * 2340 * \b Description: 2341 * This routine is envoked when we a request to remove a nport we are in the 2342 * process of PRLIing. We should software abort outstanding prli, unreg 2343 * login, send a logout. We will change node state to UNUSED_NODE, put it 2344 * on plogi list so it can be freed when LOGO completes. 2345 * 2346 */ 2347 2348static uint32_t 2349lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2350 void *arg, uint32_t evt) 2351{ 2352 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2353 2354 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2355 spin_lock_irq(shost->host_lock); 2356 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2357 spin_unlock_irq(shost->host_lock); 2358 return ndlp->nlp_state; 2359 } else { 2360 /* software abort outstanding PLOGI */ 2361 lpfc_els_abort(vport->phba, ndlp); 2362 2363 lpfc_drop_node(vport, ndlp); 2364 return NLP_STE_FREED_NODE; 2365 } 2366} 2367 2368 2369/*! lpfc_device_recov_prli_issue 2370 * 2371 * \pre 2372 * \post 2373 * \param phba 2374 * \param ndlp 2375 * \param arg 2376 * \param evt 2377 * \return uint32_t 2378 * 2379 * \b Description: 2380 * The routine is envoked when the state of a device is unknown, like 2381 * during a link down. We should remove the nodelist entry from the 2382 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 2383 * outstanding PRLI command, then free the node entry. 2384 */ 2385static uint32_t 2386lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 2387 struct lpfc_nodelist *ndlp, 2388 void *arg, 2389 uint32_t evt) 2390{ 2391 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2392 struct lpfc_hba *phba = vport->phba; 2393 2394 /* Don't do anything that will mess up processing of the 2395 * previous RSCN. 2396 */ 2397 if (vport->fc_flag & FC_RSCN_DEFERRED) 2398 return ndlp->nlp_state; 2399 2400 /* software abort outstanding PRLI */ 2401 lpfc_els_abort(phba, ndlp); 2402 2403 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 2404 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2405 spin_lock_irq(shost->host_lock); 2406 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2407 spin_unlock_irq(shost->host_lock); 2408 lpfc_disc_set_adisc(vport, ndlp); 2409 return ndlp->nlp_state; 2410} 2411 2412static uint32_t 2413lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2414 void *arg, uint32_t evt) 2415{ 2416 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2417 struct ls_rjt stat; 2418 2419 memset(&stat, 0, sizeof(struct ls_rjt)); 2420 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2421 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2422 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2423 return ndlp->nlp_state; 2424} 2425 2426static uint32_t 2427lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2428 void *arg, uint32_t evt) 2429{ 2430 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2431 struct ls_rjt stat; 2432 2433 memset(&stat, 0, sizeof(struct ls_rjt)); 2434 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2435 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2436 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2437 return ndlp->nlp_state; 2438} 2439 2440static uint32_t 2441lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2442 void *arg, uint32_t evt) 2443{ 2444 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2445 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2446 2447 spin_lock_irq(shost->host_lock); 2448 ndlp->nlp_flag |= NLP_LOGO_ACC; 2449 spin_unlock_irq(shost->host_lock); 2450 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2451 return ndlp->nlp_state; 2452} 2453 2454static uint32_t 2455lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2456 void *arg, uint32_t evt) 2457{ 2458 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2459 struct ls_rjt stat; 2460 2461 memset(&stat, 0, sizeof(struct ls_rjt)); 2462 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2463 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2464 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2465 return ndlp->nlp_state; 2466} 2467 2468static uint32_t 2469lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2470 void *arg, uint32_t evt) 2471{ 2472 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; 2473 struct ls_rjt stat; 2474 2475 memset(&stat, 0, sizeof(struct ls_rjt)); 2476 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2477 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2478 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2479 return ndlp->nlp_state; 2480} 2481 2482static uint32_t 2483lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2484 void *arg, uint32_t evt) 2485{ 2486 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2487 2488 ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; 2489 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2490 spin_lock_irq(shost->host_lock); 2491 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2492 spin_unlock_irq(shost->host_lock); 2493 lpfc_disc_set_adisc(vport, ndlp); 2494 return ndlp->nlp_state; 2495} 2496 2497static uint32_t 2498lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2499 void *arg, uint32_t evt) 2500{ 2501 /* 2502 * DevLoss has timed out and is calling for Device Remove. 2503 * In this case, abort the LOGO and cleanup the ndlp 2504 */ 2505 2506 lpfc_unreg_rpi(vport, ndlp); 2507 /* software abort outstanding PLOGI */ 2508 lpfc_els_abort(vport->phba, ndlp); 2509 lpfc_drop_node(vport, ndlp); 2510 return NLP_STE_FREED_NODE; 2511} 2512 2513static uint32_t 2514lpfc_device_recov_logo_issue(struct lpfc_vport *vport, 2515 struct lpfc_nodelist *ndlp, 2516 void *arg, uint32_t evt) 2517{ 2518 /* 2519 * Device Recovery events have no meaning for a node with a LOGO 2520 * outstanding. The LOGO has to complete first and handle the 2521 * node from that point. 2522 */ 2523 return ndlp->nlp_state; 2524} 2525 2526static uint32_t 2527lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2528 void *arg, uint32_t evt) 2529{ 2530 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2531 2532 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2533 return ndlp->nlp_state; 2534} 2535 2536static uint32_t 2537lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2538 void *arg, uint32_t evt) 2539{ 2540 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2541 2542 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2543 return ndlp->nlp_state; 2544 2545 lpfc_rcv_prli(vport, ndlp, cmdiocb); 2546 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2547 return ndlp->nlp_state; 2548} 2549 2550static uint32_t 2551lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2552 void *arg, uint32_t evt) 2553{ 2554 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2555 2556 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2557 return ndlp->nlp_state; 2558} 2559 2560static uint32_t 2561lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2562 void *arg, uint32_t evt) 2563{ 2564 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2565 2566 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2567 return ndlp->nlp_state; 2568} 2569 2570static uint32_t 2571lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2572 void *arg, uint32_t evt) 2573{ 2574 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2575 2576 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 2577 return ndlp->nlp_state; 2578} 2579 2580static uint32_t 2581lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 2582 struct lpfc_nodelist *ndlp, 2583 void *arg, 2584 uint32_t evt) 2585{ 2586 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2587 2588 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 2589 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2590 spin_lock_irq(shost->host_lock); 2591 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2592 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2593 spin_unlock_irq(shost->host_lock); 2594 lpfc_disc_set_adisc(vport, ndlp); 2595 2596 return ndlp->nlp_state; 2597} 2598 2599static uint32_t 2600lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2601 void *arg, uint32_t evt) 2602{ 2603 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2604 2605 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 2606 return ndlp->nlp_state; 2607} 2608 2609static uint32_t 2610lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2611 void *arg, uint32_t evt) 2612{ 2613 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2614 2615 if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) 2616 return ndlp->nlp_state; 2617 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 2618 return ndlp->nlp_state; 2619} 2620 2621static uint32_t 2622lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2623 void *arg, uint32_t evt) 2624{ 2625 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2626 2627 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2628 return ndlp->nlp_state; 2629} 2630 2631static uint32_t 2632lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 2633 struct lpfc_nodelist *ndlp, 2634 void *arg, uint32_t evt) 2635{ 2636 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2637 2638 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2639 return ndlp->nlp_state; 2640} 2641 2642static uint32_t 2643lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2644 void *arg, uint32_t evt) 2645{ 2646 struct lpfc_hba *phba = vport->phba; 2647 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2648 2649 /* flush the target */ 2650 lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], 2651 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 2652 2653 /* Treat like rcv logo */ 2654 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 2655 return ndlp->nlp_state; 2656} 2657 2658static uint32_t 2659lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 2660 struct lpfc_nodelist *ndlp, 2661 void *arg, 2662 uint32_t evt) 2663{ 2664 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2665 2666 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 2667 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 2668 spin_lock_irq(shost->host_lock); 2669 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2670 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2671 spin_unlock_irq(shost->host_lock); 2672 lpfc_disc_set_adisc(vport, ndlp); 2673 return ndlp->nlp_state; 2674} 2675 2676static uint32_t 2677lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2678 void *arg, uint32_t evt) 2679{ 2680 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2681 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2682 2683 /* Ignore PLOGI if we have an outstanding LOGO */ 2684 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) 2685 return ndlp->nlp_state; 2686 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 2687 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2688 spin_lock_irq(shost->host_lock); 2689 ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); 2690 spin_unlock_irq(shost->host_lock); 2691 } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2692 /* send PLOGI immediately, move to PLOGI issue state */ 2693 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2694 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2695 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2696 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2697 } 2698 } 2699 return ndlp->nlp_state; 2700} 2701 2702static uint32_t 2703lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2704 void *arg, uint32_t evt) 2705{ 2706 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2707 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2708 struct ls_rjt stat; 2709 2710 memset(&stat, 0, sizeof (struct ls_rjt)); 2711 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 2712 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 2713 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 2714 2715 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 2716 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2717 spin_lock_irq(shost->host_lock); 2718 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2719 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2720 spin_unlock_irq(shost->host_lock); 2721 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2722 lpfc_issue_els_adisc(vport, ndlp, 0); 2723 } else { 2724 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2725 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2726 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2727 } 2728 } 2729 return ndlp->nlp_state; 2730} 2731 2732static uint32_t 2733lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2734 void *arg, uint32_t evt) 2735{ 2736 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2737 2738 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 2739 return ndlp->nlp_state; 2740} 2741 2742static uint32_t 2743lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2744 void *arg, uint32_t evt) 2745{ 2746 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2747 2748 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 2749 /* 2750 * Do not start discovery if discovery is about to start 2751 * or discovery in progress for this node. Starting discovery 2752 * here will affect the counting of discovery threads. 2753 */ 2754 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 2755 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 2756 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 2757 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2758 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2759 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 2760 lpfc_issue_els_adisc(vport, ndlp, 0); 2761 } else { 2762 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 2763 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 2764 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 2765 } 2766 } 2767 return ndlp->nlp_state; 2768} 2769 2770static uint32_t 2771lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2772 void *arg, uint32_t evt) 2773{ 2774 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2775 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 2776 2777 spin_lock_irq(shost->host_lock); 2778 ndlp->nlp_flag |= NLP_LOGO_ACC; 2779 spin_unlock_irq(shost->host_lock); 2780 2781 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 2782 2783 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 2784 mod_timer(&ndlp->nlp_delayfunc, 2785 jiffies + msecs_to_jiffies(1000 * 1)); 2786 spin_lock_irq(shost->host_lock); 2787 ndlp->nlp_flag |= NLP_DELAY_TMO; 2788 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2789 spin_unlock_irq(shost->host_lock); 2790 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 2791 } else { 2792 spin_lock_irq(shost->host_lock); 2793 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2794 spin_unlock_irq(shost->host_lock); 2795 } 2796 return ndlp->nlp_state; 2797} 2798 2799static uint32_t 2800lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2801 void *arg, uint32_t evt) 2802{ 2803 struct lpfc_iocbq *cmdiocb, *rspiocb; 2804 IOCB_t *irsp; 2805 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2806 2807 cmdiocb = (struct lpfc_iocbq *) arg; 2808 rspiocb = cmdiocb->context_un.rsp_iocb; 2809 2810 irsp = &rspiocb->iocb; 2811 if (irsp->ulpStatus) { 2812 spin_lock_irq(shost->host_lock); 2813 ndlp->nlp_flag |= NLP_DEFER_RM; 2814 spin_unlock_irq(shost->host_lock); 2815 return NLP_STE_FREED_NODE; 2816 } 2817 return ndlp->nlp_state; 2818} 2819 2820static uint32_t 2821lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2822 void *arg, uint32_t evt) 2823{ 2824 struct lpfc_iocbq *cmdiocb, *rspiocb; 2825 IOCB_t *irsp; 2826 2827 cmdiocb = (struct lpfc_iocbq *) arg; 2828 rspiocb = cmdiocb->context_un.rsp_iocb; 2829 2830 irsp = &rspiocb->iocb; 2831 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2832 lpfc_drop_node(vport, ndlp); 2833 return NLP_STE_FREED_NODE; 2834 } 2835 return ndlp->nlp_state; 2836} 2837 2838static uint32_t 2839lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2840 void *arg, uint32_t evt) 2841{ 2842 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2843 2844 /* For the fabric port just clear the fc flags. */ 2845 if (ndlp->nlp_DID == Fabric_DID) { 2846 spin_lock_irq(shost->host_lock); 2847 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); 2848 spin_unlock_irq(shost->host_lock); 2849 } 2850 lpfc_unreg_rpi(vport, ndlp); 2851 return ndlp->nlp_state; 2852} 2853 2854static uint32_t 2855lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2856 void *arg, uint32_t evt) 2857{ 2858 struct lpfc_iocbq *cmdiocb, *rspiocb; 2859 IOCB_t *irsp; 2860 2861 cmdiocb = (struct lpfc_iocbq *) arg; 2862 rspiocb = cmdiocb->context_un.rsp_iocb; 2863 2864 irsp = &rspiocb->iocb; 2865 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 2866 lpfc_drop_node(vport, ndlp); 2867 return NLP_STE_FREED_NODE; 2868 } 2869 return ndlp->nlp_state; 2870} 2871 2872static uint32_t 2873lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 2874 struct lpfc_nodelist *ndlp, 2875 void *arg, uint32_t evt) 2876{ 2877 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 2878 MAILBOX_t *mb = &pmb->u.mb; 2879 2880 if (!mb->mbxStatus) { 2881 /* SLI4 ports have preallocated logical rpis. */ 2882 if (vport->phba->sli_rev < LPFC_SLI_REV4) 2883 ndlp->nlp_rpi = mb->un.varWords[0]; 2884 ndlp->nlp_flag |= NLP_RPI_REGISTERED; 2885 if (ndlp->nlp_flag & NLP_LOGO_ACC) { 2886 lpfc_unreg_rpi(vport, ndlp); 2887 } 2888 } else { 2889 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 2890 lpfc_drop_node(vport, ndlp); 2891 return NLP_STE_FREED_NODE; 2892 } 2893 } 2894 return ndlp->nlp_state; 2895} 2896 2897static uint32_t 2898lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2899 void *arg, uint32_t evt) 2900{ 2901 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2902 2903 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 2904 spin_lock_irq(shost->host_lock); 2905 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 2906 spin_unlock_irq(shost->host_lock); 2907 return ndlp->nlp_state; 2908 } 2909 lpfc_drop_node(vport, ndlp); 2910 return NLP_STE_FREED_NODE; 2911} 2912 2913static uint32_t 2914lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2915 void *arg, uint32_t evt) 2916{ 2917 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2918 2919 /* Don't do anything that will mess up processing of the 2920 * previous RSCN. 2921 */ 2922 if (vport->fc_flag & FC_RSCN_DEFERRED) 2923 return ndlp->nlp_state; 2924 2925 lpfc_cancel_retry_delay_tmo(vport, ndlp); 2926 spin_lock_irq(shost->host_lock); 2927 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 2928 ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); 2929 spin_unlock_irq(shost->host_lock); 2930 return ndlp->nlp_state; 2931} 2932 2933 2934/* This next section defines the NPort Discovery State Machine */ 2935 2936/* There are 4 different double linked lists nodelist entries can reside on. 2937 * The plogi list and adisc list are used when Link Up discovery or RSCN 2938 * processing is needed. Each list holds the nodes that we will send PLOGI 2939 * or ADISC on. These lists will keep track of what nodes will be effected 2940 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 2941 * The unmapped_list will contain all nodes that we have successfully logged 2942 * into at the Fibre Channel level. The mapped_list will contain all nodes 2943 * that are mapped FCP targets. 2944 */ 2945/* 2946 * The bind list is a list of undiscovered (potentially non-existent) nodes 2947 * that we have saved binding information on. This information is used when 2948 * nodes transition from the unmapped to the mapped list. 2949 */ 2950/* For UNUSED_NODE state, the node has just been allocated . 2951 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2952 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2953 * and put on the unmapped list. For ADISC processing, the node is taken off 2954 * the ADISC list and placed on either the mapped or unmapped list (depending 2955 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2956 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2957 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2958 * node, the node is taken off the unmapped list. The binding list is checked 2959 * for a valid binding, or a binding is automatically assigned. If binding 2960 * assignment is unsuccessful, the node is left on the unmapped list. If 2961 * binding assignment is successful, the associated binding list entry (if 2962 * any) is removed, and the node is placed on the mapped list. 2963 */ 2964/* 2965 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2966 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2967 * expire, all effected nodes will receive a DEVICE_RM event. 2968 */ 2969/* 2970 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2971 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2972 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2973 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2974 * we will first process the ADISC list. 32 entries are processed initially and 2975 * ADISC is initited for each one. Completions / Events for each node are 2976 * funnelled thru the state machine. As each node finishes ADISC processing, it 2977 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2978 * waiting, and the ADISC list count is identically 0, then we are done. For 2979 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2980 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2981 * list. 32 entries are processed initially and PLOGI is initited for each one. 2982 * Completions / Events for each node are funnelled thru the state machine. As 2983 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2984 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2985 * indentically 0, then we are done. We have now completed discovery / RSCN 2986 * handling. Upon completion, ALL nodes should be on either the mapped or 2987 * unmapped lists. 2988 */ 2989 2990static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2991 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2992 /* Action routine Event Current State */ 2993 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2994 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2995 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2996 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2997 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2998 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2999 lpfc_disc_illegal, /* CMPL_PLOGI */ 3000 lpfc_disc_illegal, /* CMPL_PRLI */ 3001 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 3002 lpfc_disc_illegal, /* CMPL_ADISC */ 3003 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3004 lpfc_device_rm_unused_node, /* DEVICE_RM */ 3005 lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ 3006 3007 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 3008 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 3009 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 3010 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 3011 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 3012 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 3013 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 3014 lpfc_disc_illegal, /* CMPL_PRLI */ 3015 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 3016 lpfc_disc_illegal, /* CMPL_ADISC */ 3017 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 3018 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 3019 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 3020 3021 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 3022 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 3023 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 3024 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 3025 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 3026 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 3027 lpfc_disc_illegal, /* CMPL_PLOGI */ 3028 lpfc_disc_illegal, /* CMPL_PRLI */ 3029 lpfc_disc_illegal, /* CMPL_LOGO */ 3030 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 3031 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3032 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 3033 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 3034 3035 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 3036 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 3037 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 3038 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 3039 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 3040 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 3041 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3042 lpfc_disc_illegal, /* CMPL_PRLI */ 3043 lpfc_disc_illegal, /* CMPL_LOGO */ 3044 lpfc_disc_illegal, /* CMPL_ADISC */ 3045 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 3046 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 3047 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 3048 3049 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 3050 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 3051 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 3052 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 3053 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 3054 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 3055 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3056 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 3057 lpfc_disc_illegal, /* CMPL_LOGO */ 3058 lpfc_disc_illegal, /* CMPL_ADISC */ 3059 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3060 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 3061 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 3062 3063 lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ 3064 lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ 3065 lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ 3066 lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ 3067 lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ 3068 lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ 3069 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 3070 lpfc_disc_illegal, /* CMPL_PRLI */ 3071 lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ 3072 lpfc_disc_illegal, /* CMPL_ADISC */ 3073 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3074 lpfc_device_rm_logo_issue, /* DEVICE_RM */ 3075 lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ 3076 3077 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 3078 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 3079 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 3080 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 3081 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 3082 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 3083 lpfc_disc_illegal, /* CMPL_PLOGI */ 3084 lpfc_disc_illegal, /* CMPL_PRLI */ 3085 lpfc_disc_illegal, /* CMPL_LOGO */ 3086 lpfc_disc_illegal, /* CMPL_ADISC */ 3087 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3088 lpfc_disc_illegal, /* DEVICE_RM */ 3089 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 3090 3091 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 3092 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 3093 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 3094 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 3095 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 3096 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 3097 lpfc_disc_illegal, /* CMPL_PLOGI */ 3098 lpfc_disc_illegal, /* CMPL_PRLI */ 3099 lpfc_disc_illegal, /* CMPL_LOGO */ 3100 lpfc_disc_illegal, /* CMPL_ADISC */ 3101 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 3102 lpfc_disc_illegal, /* DEVICE_RM */ 3103 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 3104 3105 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 3106 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 3107 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 3108 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 3109 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 3110 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 3111 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 3112 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 3113 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 3114 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 3115 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 3116 lpfc_device_rm_npr_node, /* DEVICE_RM */ 3117 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 3118}; 3119 3120int 3121lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 3122 void *arg, uint32_t evt) 3123{ 3124 uint32_t cur_state, rc; 3125 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 3126 uint32_t); 3127 uint32_t got_ndlp = 0; 3128 uint32_t data1; 3129 3130 if (lpfc_nlp_get(ndlp)) 3131 got_ndlp = 1; 3132 3133 cur_state = ndlp->nlp_state; 3134 3135 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3136 ((uint32_t)ndlp->nlp_type)); 3137 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 3138 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3139 "0211 DSM in event x%x on NPort x%x in " 3140 "state %d rpi x%x Data: x%x x%x\n", 3141 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, 3142 ndlp->nlp_flag, data1); 3143 3144 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3145 "DSM in: evt:%d ste:%d did:x%x", 3146 evt, cur_state, ndlp->nlp_DID); 3147 3148 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 3149 rc = (func) (vport, ndlp, arg, evt); 3150 3151 /* DSM out state <rc> on NPort <nlp_DID> */ 3152 if (got_ndlp) { 3153 data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) | 3154 ((uint32_t)ndlp->nlp_type)); 3155 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3156 "0212 DSM out state %d on NPort x%x " 3157 "rpi x%x Data: x%x x%x\n", 3158 rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag, 3159 data1); 3160 3161 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3162 "DSM out: ste:%d did:x%x flg:x%x", 3163 rc, ndlp->nlp_DID, ndlp->nlp_flag); 3164 /* Decrement the ndlp reference count held for this function */ 3165 lpfc_nlp_put(ndlp); 3166 } else { 3167 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3168 "0213 DSM out state %d on NPort free\n", rc); 3169 3170 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 3171 "DSM out: ste:%d did:x%x flg:x%x", 3172 rc, 0, 0); 3173 } 3174 3175 return rc; 3176} 3177