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