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