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